660 MW Harbin Boiler FSSS Writeup

8/16/2019 660 MW Harbin Boiler FSSS Writeup

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Document No. QS3132003-000-FSSS-Wp-10001

Customer Doc. No.

Project No. CN-20308

Contract No. QS3132003

Shanghai Foxboro Co.,Ltd Page

PROJECT NAME: 2×660MW Super Critical Coal Fired Thermal Power Project Nellore, India

OWNER NAME: NCC Power Projects Limited

OWNER ’S CONSULTANT NAME: TATA Consulting Engineers Limited, Bengaluru

EPC CONTRACTOR NAME: NCC Limited

EPC CONTRACTOR ’S CONSULTANT NAME: L&T-Sargent & Lundy Limited, Kolkata

VENDOR NAME: CNTIC-TEPC

I/A System

Write-up of FSSS Logic ( Included MFT)

R0 2015-1-22 Initial Version for review

Rz, Wang Qian Lin Wei, Liu

Rev Date Prep Chk Apr Description


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Issue: A1 SHANGHAI FOXBORO

Revision Date:2013-09-04 注:仅供参考 For reference only

Revision Status: As comment Page 1 of 39

Project Design SpecificationFor

NCC POWER PROJECT

FSSS Design Specification

Author: Engineering Team

SHANGHAI FOXBORO

Revision: A0

Revision Date: 2015-01-23

Revision Status: First issue

ISSUE A0 A1 A2 A3 A4 A5

Purpose First issueDate 2014.1.5

FOXBORO

By

Checked

Approved

CLIENT

User

Manager

Systems

Manager

Validation

Co-ordinator


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Revision History

Rev. Purpose Date Authors

0 First issue Jan. 05 2014 shiwq

1

2

3

4


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Table of Contents

Table of Contents .................................................................................................................................................. 3

FSSS设计说明 ......................................................... ................................................................... ........................................... 6

FSSS Design Specification .............................................................. .................................................................. ..................... 6

1基本配置

Basic architecture ............................................................... ................................................................. ........... 6

1.1 硬件配置 Hardware architecture ............................................................................................................ 6

1.2 FSSS系统的组成 FSSS System ................................................................................................................. 7

2 主要功能 Main functions ..................................................................................................... ........................................... 7

2.1 公共逻辑 Common logics ....................................................................................................................... 7

2.2 主燃料跳闸(MFT) Main fuel trip (MFT) ..................................................................................................... 7

MFT跳闸条件：

Trip conditions: ................................................................................................................ 7 当MFT发生时, 软件执行下列操作 Once MFT occurs, system execute the following operation: .......... 9

当MFT发生时, 硬回路执行下列操作 Once MFT occurs, hardwire execute the following operation: 10

2.3 炉膛点火吹扫 Furnace ignition purge ................................................................................................... 11

吹扫条件

: ................................................................................................................................................. 11

再次吹扫请求

: ......................................................................................................................................... 12

2.4 油燃料跳闸 (OFT) Oil fuel trip (OFT) ................................................................ ........................... 12

2.4.1轻油OFT条件: LDO OFT conditions .............................................................................................. 12

2.4.2 重油OFT条件: HDO OFT conditions ............................................................................................. 13

2.4.3 轻油OFT复位条件: LDO reset conditions .................................................................................... 13

2.4.4重油

OFT复位条件

:HFO reset conditions ..................................................................................... 13

2.5 油检漏试验 Oil leakage test.................................................................................................................. 14

轻油泄漏试验允许条件: Light oil leakage test conditions: .............................................................. .... 14

重油泄漏试验允许条件: Heavy oil leakage test conditions: ......................................................... ....... 15

油检漏试验过程: Process of oil leakage test: ............................................................ ........................... 15

2.6 点火允许条件 Ignition conditions ................................................................................................ 16

2.6.1炉膛点火允许条件

Furnace ignition permission conditions ........................................................ 16

2.6.2轻油系统点火允许

Light oil system ignition permission conditions ............................................ 16

2.6.3 重油系统点火允许 Heavy oil system ignition permission conditions .......................................... 17

2.6.4 煤点火允许条件 Coal ignition permission conditions .............................................................. 17

2.6.5 煤层A~H点火允许 Coal layer A~H ignition permission ............................................................. 18

2.7 油母管逻辑控制 Main oil logic control .................................................................................................. 19

2.7.1供油快关阀

oil supply fast valve .......................................................... ....................................... 19

2.7.2回油快关阀

(10EGB90AA500/10EGI90AA500) Oil return motor operated valve ....................... 20 3 燃油系统逻辑 Oil system logics .......................................................... .................................................................... ...... 20

3.1 轻油燃烧器控制：Oil burner control ........................................................................................... 20

3.1.1 轻油燃烧器点火允许 A1 light oil burner ignition permission conditions............................... 20

3.1.2 轻油跳闸条件 A1 light oil ignition trip conditions .................................................................. 21

3.1.3 轻油程控点火步序 light oil start ignition sequence ............................................................... 21

3.1.4 轻油程控停止步序 light oil stop ignition sequence ......................................................... ....... 22

3.1.5 轻油燃烧器吹扫 A1 light oil burner purging ........................................................... ................ 22

3.2 重油油燃烧器控制：heavy oil burner control ............................................................................. 23

3.2.1 重油燃烧器点火允许 heavy oil burner ignition permission conditions ................................. 23

3.2.2 重油跳闸条件 heavy oil ignition trip conditions ..................................................................... 23

3.2.3 重油程控点火步序 heavy oil start ignition sequence ............................................................. 24

3.2.4 重油程控停止步序 heavy oil stop ignition sequence ............................................................. 24

3.2.5 重油燃烧器吹扫 heavy oil burner purging.............................................................................. 25


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4 制粉系统 Coal system logic ..................................................................................................................... 26

4.1 磨煤机启停顺空 Pulverized coal mill start/stop sequence ...................................................................... 26

4.1.1 磨煤机顺控启动条件 Pulverized coal mill sequence start permission ............................................. 26

4.1.2 磨煤机顺控启动步序 Pulverized coal mill sequence start steps ..................................................... 26

4.1.3 磨煤机停止顺控步序 Pulverized coal mill stop sequence .............................................................. 28 4.2 制粉系统设备级逻辑 Coal device logic ................................................................................................. 29

4.2.1 磨煤机 Pulverized coal mill ................................................................................................................ 29

4.2.1.1 启允许 start permission conditions .................................................................................................. 29

4.2.1.2 保护停 protect stop conditions ........................................................................................................ 31

4.2.1.3 磨煤机跳闸条件满足后动作设备 interlock device as below after mill trip condition satisfied: ............ 31

4.2.2 磨煤机稀油站高速油泵 mill high speed lube oil pump ........................................................................ 32


4.2.2.2 自动启 auto start conditions ........................................................................................................... 32

4.2.2.3 停允许 stop permission conditions .................................................................................................. 32

4.2.3 磨煤机稀油站低速油泵 mill low speed lube oil pump ................................................................... 32


4.2.3.2 自动启 auto start conditions ........................................................................................................... 33

4.2.3.3 自动停 auto stop conditions ............................................................................................................ 33

4.2.4 磨煤机稀油站电加热器 mill lube oil heater ................................................................................. 33


4.2.4.2 自动停 auto stop conditions ........................................................................................................ 33

4.2.5 磨煤机加载油泵 mill hydraulic oil pump ...................................................................................... 33

4.2.5.1 停允许 stop permission conditions .................................................................................................. 33

4.2.6 磨煤机加载油泵电加热器 mill hydraulic oil pump heater ............................................................. 33

4.2.6.1 自动启 auto start conditions ........................................................................................................ 33

4.2.6.2 自动停 auto stop conditions ........................................................................................................ 34

4.2.7 磨煤机液动换向阀 mill hydraulic reversing valve ......................................................................... 34

4.2.7.1 开允许 auto start conditions ........................................................................................................ 34 4.2.8 磨煤机磨辊 mill grinding roller .................................................................................................... 34

4.2.8.1 磨辊提升允许 grinding roller lifting permission conditions ............................................................ 34

4.2.8.2 磨辊下降允许 grinding roller falling permission conditions ............................................................. 34

4.2.9 给煤机 coal feeder ...................................................................................................................... 34

4.2.9.1 启允许 start permission conditions .............................................................................................. 34

4.2.9.2 保护停 protect stop conditions .................................................................................................... 35

4.2.10 给煤机入口闸板门 coal feeder inlet damper ................................................................................ 35

4.2.11 给煤机出口闸板门 coal feeder outlet damper .............................................................................. 35

4.2.11.1 开允许 open permission conditions ........................................................................................... 35

4.2.11.2 关允许 close permission conditions .......................................................................................... 35

4.2.11.3 保护关 protect stop conditions ................................................................................................ 35 4.2.12 磨煤机出口气动插板门 mill outlet valve ..................................................................................... 36


4.2.12.2 保护开 protect open conditions ............................................................................................... 36

4.2.12.3 保护关 protect close conditions ............................................................................................... 36

4.2.13 磨煤机冷一次风气动插板门 mill cold PA valve ............................................................................ 36



4.2.13.3 保护关 protect stop conditions ................................................................................................ 36

4.2.14 磨煤机热一次风气动插板门 mill hot PA guillotine valve ............................................................... 37


4.2.14.2 保护关 protect stop conditions ................................................................................................ 37

4.2.15 磨煤机入口密封风电动门 mill seal air inlet valve ......................................................................... 37



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4.2.16 炉膛冷却风挡板 burner cooling air damper ...................................Error! Bookmark not defined.

4.2.16.1 自动开 auto open conditions ......................................................Error! Bookmark not defined.

5 密封风机 Seal air fan .............................................................................................................................. 37

5.1 密封风机(A/B逻辑相同)（1HFW11AN001/1HFW12AN001）Sealing air fan ............................................ 37 6 火检冷却风机 Scanner air fan ................................................................................................................. 39

6.1 火检冷却风机(1HXA01AN001/1HXA02AN001) Fire detection Scanner air fan ........................................ 39


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印度

NCC 2x660MW超临界燃煤电站项目

FSSS设计说明

FSSS Design Specification

1基本配置

Basic architecture

1.1 硬件配置 Hardware architecture

FSSS系统配置有5对控制器。

FSSS system is configured with 5 pair of controllers..

系统分布 System distribution

＃CPX00A控制器：A磨+A磨油系统+给煤机A+A磨冷热一次风系统+B磨+ B磨油系统+给煤机B+B磨冷热一

次风系统+AB层轻油+AB层火检

＃CP CPX00A: Mill A + Mill A oil + Coal feeder A + Mill A cold&hot PA + Mill B + Mill B oil + Coal feeder B +

Mill B cold&hot PA + AB layer light oil + AB layer flame monitoring

＃CPX00B控制器：C磨+C磨油系统+给煤机C+C磨冷热一次风系统+D磨+ D磨油系统+给煤机D+D磨冷热一

次风系统+CD层轻油+CD层火检

＃CP CPX00B: Mill C + Mill C oil + Coal feeder C + Mill C cold&hot PA + Mill D + Mill D oil + Coal feeder D +

Mill D cold&hot PA + CD layer light oil + CD layer flame monitoring

＃CPX00C控制器：E磨+E磨油系统+给煤机E+E磨冷热一次风系统+F磨+ F磨油系统+给煤机F+F磨冷热一

次风系统+EF层轻油+EF层火检+火检风机B

＃CP CPX00C: Mill E + Mill E oil + Coal feeder E + Mill E cold&hot PA + Mill F + Mill F oil + Coal feeder F + Mill

F cold&hot PA + EF layer light oil + EF layer flame monitoring + Scanner B

＃CPX00D控制器：G磨+G磨油系统+给煤机G+G磨冷热一次风系统+H磨+ H磨油系统+给煤机H+H磨冷热

一次风系统+GH层轻油+GH层火检+密封风机B

＃CP CPX00D: Mill G + Mill G oil + Coal feeder G + Mill G cold&hot PA + Mill H + Mill H oil + Coal feeder H +

Mill H cold&hot PA + GH layer light oil + GH layer flame monitoring + Seal air fan B

＃CPX00E控制器：MFT及其硬接线+轻油泄漏试验+重油泄漏试验+锅炉炉膛吹扫+火检冷却风机A+密封

风机A

＃CP CPX00E: MFT&hardwired to DCS + LDO leakage test + HFO leakage test + Furnace purge + Scanner A +

Seal air fan A


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1.2 FSSS系统的组成 FSSS System

FSSS控制逻辑S分为公用控制逻辑、燃油控制逻辑及燃煤控制逻辑三大部分。

FSSS control logic consists of three parts: common control logic, oil fuel control logic and coal fuel control

logic.

公用控制逻辑部分包含锅炉保护的全部内容，即油泄漏试验、炉膛吹扫、主燃料跳闸（MFT）及油燃

料跳闸（OFT）与首出原因记忆、点火条件、RB等。

Common control logic includes boiler protections: oil leakage test, furnace purge and main fuel trip (MFT),

oil fuel trip (OFT), first out record, ignition conditions and Runback etc.

公用控制逻辑还包括有FSSS公用设备（如火检冷却风机、密封风机）的控制。

Common control logic also includes control of FSSS common equipments (fire detection cooling fan, sealing

air fan).

燃油控制逻辑包括各对油燃烧器投、切控制及层投、切控制。

Fuel Oil control logic includes oil burners are on-off control, layers are on-off control.

2主要功能

Main functions

2.1 公共逻辑 Common logics

公共逻辑是对炉膛燃烧的总体保护, 如油泄漏试验、炉膛吹扫、主燃料跳闸（MFT）及油燃料跳闸（OFT）

与首出原因记忆、点火条件、RB等。

Common logics are general protections for furnace combustion, such as oil leakage test, furnace purge,

main fuel trip(MFT),oil fuel trip(OFT),first out record, ignition conditions and Runback etc.

2.2 主燃料跳闸(MFT) Main fuel trip (MFT)

MFT跳闸条件：Trip conditions:

1. 空预器全停 (1HLD11GH001XB07/ 1HLD11GH001XB11/ 1HLD12GH001XB07 / 1HLD12GH001XB11)

All air pre-heaters stopped

2. 送风机全停2/3（无延时）(1HLB01AN001XB11 / 1HLB01AN001XB12/ 1HLB01AN001XB13/

1HLB02AN001XB11/ 1HLB02AN001XB12/ 1HLB02AN001XB13), 硬接线进trident.

All FD fans stopped 2/3(no delay), hard wired to trident.

3. 引风机全停2/3（无延时）(1HNC01AN001XB11 / 1HNC01AN001XB12/ 1HNC01AN001XB13/

1HNC02AN001XB11/ 1HNC02AN001XB12/ 1HNC02AN001XB13), 硬接线进trident

All ID fans stopped 2/3 (no delay), hard wired to trident.

4. 炉膛压力高高（2/3延时3s）(1HBB10CP310/ 1HBB10CP311/ 1HBB10CP312), 硬接线进trident.


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Furnace pressure high-high (2/3,delay 3s), hard wired to trident.

5. 炉膛压力低低（2/3延时3s）(1HBB10CP307/ 1HBB10CP308/ 1HBB10CP309), 硬接线进trident.

Furnace pressure low-low (2/3,delay 3s), hard wired to trident.

6. 操作员手动紧急停炉（2个按钮）

Operator manual emergency trip (2 push buttons)

7. 火检风机出口母管压力低低（2/3开关延时60s）(1HXA30CP202/ 1HXA30CP203/ 1HXA30CP204)，硬接

线进trident.

Scanner air fan outlet header press low-low-low (2/3 delay 60s) , hard wired to trident.

8. 锅炉总风量过低（总风量


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左侧任一中压主汽门关闭（中压压主汽门，中压调节汽门）且右侧任一中压主汽门关闭（中压压主汽

门，中压调节汽门），延时10秒。

In the situation of fuel quantity>20%, HP bypass valve closed and either one of the left side HP main

steam valve closed (including left side HP high steam valve and left side HP control steam valve) and either

right side HP main steam valve closed (including right side HP high steam valve and right side HP control

steam valve), or LP bypass valves closed and either left side LP main steam closed (including left side LP high

steam valve and left side LP control steam valve) and either right side of LP bypass main steam valve closed

(including right side LP high steam valve and right side LP control steam valve)

15. 锅炉点火记忆后，省煤器入口给水流量低（2/3），延时15s 。(1LAB60CF001 / 1LAB60CF002/

1LAB60CF003)

After Boiler ignition memory, feed water flow low-low（2/3）, 15s delay.

16. 折焰角入口集箱温度高高

(1HAD50CT001/1HAD50CT002/1HAD50CT003/1HAD50CT011/1HAD50CT012/1HAD50CT013)

Arch inlet manifold inlet temperature HH (2/3)

17. 再次吹扫请求

Purge again request

18. MFT trident 柜失电

Loss of MFT TRICONEX cabinet power.

当MFT发生时, 软件执行下列操作 Once MFT occurs, system execute the following operation:

1. 关轻重油供油快关阀(1HJF10AA101XB/1HJF20AA101XB)

Close light/heavy oil feed fast valve

2. 延时2S关轻重油回油快关阀(1HJF15AA101XB/1HJF25AA101YB)

MFT delay 2 seconds, then Close light/heavy return oil fast valve

3. 关所有轻重油油角阀、吹扫阀、雾化阀

Close all light/heavy oil angle valves, purging steam valves and atomization valve.

4. 退所有油枪和点火枪

Return back all oil guns and ignition guns

5. 点火器停止打火

Igniters stop igniting

6. 停所有磨煤机

Stop all coal mills

7.

停所有磨煤机出口气动门 Close all mill outlet damper

it is better to consider spiral walltemperature


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8. 停所有给煤机

Stop all coal feeders

9. 停一次风机

Stop all PA fan

10. 关所有过热再热减温水总门及支路电动门及调门

Close all attemperating water general valve and motor operated valves and control valve

11. 切除全部投运的吹灰器

Stop all soot blowing system

12. 置磨煤机调节为手动

Mills control set to manual mode.

13. 开二次风门档板

Open Secondary air damper

MFT时（非二次风机跳闸或引风机跳闸），二次风机调节应切手动，维持当前开度，5分钟后置

回复自动，置吹扫位。

二次风机跳闸或引风机跳闸时，二次风机调节挡板维持当前开度，1分钟后置全开位15分钟。

When MFT happened(not caused by FDF or IDF), the secondary air damper should be in manual mode,

maintain its current status percentage. Back into auto mode after 5 min, and set to purging status

percentage.

When MFT happened caused by FDF or IDF, the secondary air damper should maintain its current

percentage, and 100% opened after 1 min.

当MFT发生时, 硬回路执行下列操作 Once MFT occurs, hardwire execute the following operation:

1. 关重油、轻油供油快关阀

Close light/heavy oil feed fast valve

2. 关重油、轻油回油快关阀

Close light/heavy oil return oil fast valve

3. 停所有给煤机

Stop all the coal feeders.

4. 停所有磨煤机

Stop all the mills.

5. 去各个点火柜，点火器停止打火，关所有油角阀

To ignition cabinet, igniter stop igniting, close all oil angle valves.

6. 关过热器/再热器减温水总门

Close superheater /reheater attemperating water general valves.

7. 停两台一次风机


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Stop both PA fan.

8. 去ETS(2点)，去ECS(2点)

To ETS, to ECS.

9. 去ESP

To ESP

10. 去吹灰

To sootblow

2.3 炉膛点火吹扫 Furnace ignition purge

吹扫条件:

Purging conditions：

1. MFT置位或再次吹扫请求存在

MFT set or purge again request exist.

2. 无 MFT 条件存在

No MFT conditions

3. 两台空预器已运行

Both air preheater are running.

4. 任一送风机运行

Either of FD fan is running.

5. 任一引风机运行

Either of ID fan is running.

6. 一次风机全停

Both PA fans stopped

7. 所有磨煤机已停

All mill stopped.

8. 所有磨煤机出口一次风门关到位

All mill outlet damper closed.

9. 所有磨冷热风门全关

All the hot/ cold air damper of the mil closed

10. 所有给煤机已停

All coal feeder stopped.

oil leakage test/bypassto be included


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11. 轻、重油燃油快关阀已关

Light/heavy oil fuel fast valve are closed

12. 所有轻、重油油角阀关

All light/heavy oil burner angle valves are closed

13. 全炉无火焰

No flame in furnace

14. 30%55%)

16. 辅助风挡板置吹扫位>50%

Set aux air damper > 50%

当吹扫条件都满足后, 可按下“启动吹扫按钮”, 发置吹扫位指令,开始5分钟的吹扫计时. 在这期

间内若发生MFT，或吹扫条件不满足, 则认为吹扫中断, 计时清零. 否则, 5分钟之后, 吹扫完成, 自

动复位MFT。

When all purging conditions are satisfied, Pushing “start purging” to order purging. It will start

5-minute purging. If it occurred MFT during this period, or purge conditions are not satisfied, the purge

would be interrupted and the time count would clear. Otherwise MFT reset automatically after

5-minute purge.

再次吹扫请求:

首次点火失败4次或MFT复位后30分钟无油枪运行，认为炉膛需要重新进行吹扫，闭锁炉膛点火条件，

复位吹扫完成信号，发出再次吹扫请求信号。

If first ignition failed 4 times or no oil gun in service 30 minutes after MFT reset, the furnace need to purge

again, interlock furnace ignition conditions, reset purging finished signal, and purging again request is on.

2.4 油燃料跳闸 (OFT) Oil fuel trip (OFT)

2.4.1轻油OFT条件: LDO OFT conditions

1. MFT置位

MFT set


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2. 任意轻油油角阀未关时，轻油供油母管压力低低延时2秒。

Any light oil angel valve not close, light oil main supply oil pipe pressure low low, 2s delay.

3. 任意轻油油角阀未关时，轻油压缩空气母管压力低低延时2秒。

Any light oil angel valve not close, light oil compressed air main pipe pressure low low, 2s delay.

4. 任意轻油油角阀未关时，轻油母管进油快关发未开。

Any light oil angel valve not close, light oil supply fast valve is not open.

5. 任意轻油油角阀未关时，轻油母管回油快关发未开。

Any light oil angel valve not close, light oil return fast valve is not open.

6. CRT上，手动轻油OFT。

Manual LDO OFT in CRT.

2.4.2 重油OFT条件: HDO OFT conditions

1. MFT置位

MFT set

2. 任意重油油角阀未关时，重油供油母管压力低低延时2秒。

Any heavy oil angel valve not close, heavy oil main supply oil pipe pressure low low, 2s delay.

3. 任意重油油角阀未关时，重油雾化蒸汽母管压力低低延时2秒。

Any heavy oil angel valve not close, heavy oil compressed air main pipe pressure low low, 2s delay.

4. 任意重油油角阀未关时，重油母管进油快关发未开。

Any heavy oil angel valve not close, heavy oil supply fast valve is not open.

5. 任意重油油角阀未关时，重油母管回油快关发未开。

Any heavy oil angel valve not close, heavy oil return fast valve is not open.

6. CRT上，手动重油OFT。

Manual HFO OFT in CRT.

2.4.3 轻油OFT复位条件: LDO reset conditions

轻油泄漏实验已完成或旁路

Light oil leakage test succeed or bypass.

无轻油OFT条件

No light oil OFT conditions

2.4.4重油OFT复位条件:HFO reset conditions

重油泄漏实验已完成或旁路

Heavy oil leakage test succeed or bypass.


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无重轻油OFT条件

No heavy oil OFT conditions

当轻油OFT发生时, 自动执行下列操作:

When light OFT occurs, below functions are executed automatically:

关轻油供油快关阀

Close light oil supply fast shutoff valve

延时3s, 关轻油回油快关阀

Delay 3s, close light oil return oil fast valve

关所有轻油油角阀

Close all light oil angle valves

退所有轻油油枪

Retract all light oil gun

关轻油泄漏实验阀

Close light oil leakage test valves

当重油OFT发生时, 自动执行下列操作:

When heavy OFT occurs, below functions are executed automatically:

关重油供油快关阀

Close heavy oil fuel trip valve

延时3s, 关重油回油快关阀

Delay 3s, close heavy oil return oil fast valve

关所有重油油角阀

Close all heavy oil angle valves

退所有重油油枪

Retract all heavy oil gun

关重油泄漏实验阀

Close heavy oil leakage test valve

2.5 油检漏试验 Oil leakage test

轻油泄漏试验允许条件: Light oil leakage test conditions:

1. 所有轻油燃烧器油角阀关

close scavenging valve

as in Light oil


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All light oil angle valves of oil burner are closed

2. 轻油进油母管压力允许

Light oil supply main pressure normal

3. 轻进油快关阀关闭

Light oil supply valve closed ,oil return valve closed


No MFT conditions

5. 所有火检无火

No Flame detected.

重油泄漏试验允许条件: Heavy oil leakage test conditions:

1. 所有重油油燃烧器油角阀关

All heavy oil angle valves of oil burner are closed

2. 重油进油母管压力允许

Heavy oil supply main pressure permissive normal

3. 重油进油快关阀关闭

Heavy oil supply valve closed ,oil return valve closed


No MFT conditions

5. 所有火检无火

No Flame detected

在轻重油泄漏试验过程中，如果如果失去任意以上轻油/重油各自条件，则置位轻油/重油泄漏试验失败。

油检漏试验过程: Process of oil leakage test:

1. 开进油阀,开回油快关阀,开调节阀,管路充油60秒，关回油快关阀。

Open feed oil valve, open oil return fast valve, open oil control valve, oil pipe is filled with oil, oil

return fast valve will be closed after 60s’ delay. 2. 若在 60 秒内, 油母管压力没有达到设定值,则充油失败，试验中断；否则，油压满足后母管充

油成功, 关进油阀。

If oil main pipe pressure can’t reach set value within 60s, oil feeding fails and test stops; or else main

pipe oil feeding succeeds when oil pressure meets requirement and then close feed oil valve.

3. 开始3 分钟的油压监视过程。若在这期间，油母管计时前后压差小于设定值（0.3Mpa），说明

油管路泄漏试验憋压成功，否则憋压失败，试验中断。

Start 3-minute oil pressure monitoring process. If the main oil pipe pressure change less than the

setpoint value (0.3Mpa), it shows leakage test succeed in this step.


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4. 开回油阀，管路泄油，60s后关回油阀。

Open oil return valve, releases the oil in the pipe, and close the oil return valve in 60s.

5. 开始3分钟的油压监视过程。若在这期间，油母管计时前后压差大于于设定值（0.3Mpa），说

明进油快关阀有检漏，泻压试验失败；否则，泻压试验成功。

Start 3-minute oil pressure monitoring process. If the main oil pipe pressure change less than the set

point value (0.3Mpa), it shows leakage test succeed in this step.

6. 泄漏试验结束。

The leakage test end.

另外，可旁路油检漏试验, 强制产生检漏试验成功状态。

In addition, the oil leakage test can be taken by bypass to come into being successful status forcibly.

2.6 点火允许条件 Ignition conditions

2.6.1 炉膛点火允许条件 Furnace ignition permission conditions

1. MFT已复位

MFT reset.

2. 火检冷却风压正常：任一火检冷却风机运行且火检冷却风压大于6Kpa.

Proper scanner air pressure: either scanner is running and scanner air pressure > 6Kpa.

3. 锅炉总风量适合

Proper total air flow.

4. 炉膛负压正常

Proper furnace pressure.

5. 给水流量大于320 T/h

Feed water flow > 320 T/h

6. 无炉膛再次吹扫请求

No furnace purging again request.

7. 泄漏试验已完成或旁路

Oil leakage test succeed or bypass.

2.6.2 轻油系统点火允许 Light oil system ignition permission conditions

1. 炉膛点火条件允许

Furnace ignition permission2. 轻油OFT已复位


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Light oil OFT reset.

3. 轻油进油母管油压正常

LDO supply main pipe oil pressure normal

4. 轻油吹扫空气压力不低

LDO purging air pressure not low

5. 轻油进油快关阀开状态。

LDO oil supply fast valve opened.

6. 轻油母管温度合适。

LDO header temperature OK.

2.6.3 重油系统点火允许 Heavy oil system ignition permission conditions

7. 炉膛点火条件允许

Furnace ignition permission

8. 重油OFT已复位

Heavy oil OFT reset.

9. 重油雾化蒸汽母管压力不低

Atomized steam mains pressure not low

10. 重油进油母管压力允许

Heavy oil into the oil pressure permission

11. 重油进油母管温度允许

Heavy oil into the oil temperature permission

12. 重油雾化蒸汽温度允许

The temperature of Atomized steam not low

2.6.4 煤点火允许条件 Coal ignition permission conditions

1.炉膛点火条件允许

Furnace ignition permission

2. 二次风温度正常

The secondary air temperature is normal.

3.任一密封风机已启

Either of seal air fan is running.


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2.6.5 煤层A~H点火允许 Coal layer A~H ignition permission

1. A煤层点火允许(或)

Coal layer A ignition permission(OR)

轻油层AB已投运 LDO AB layer in service

煤层B给煤机负荷证实>50%，且重油层BC已投运

Coal layer B feeder load > 50%, and HFO layer BC in service

煤层B给煤机负荷证实>50%，且负荷>??W

Coal layer B feeder load > 50%, and load > ??W

2. B煤层点火允许(或)

Coal layer B ignition permission(OR)

轻油层AB已投运

LDO AB layer in service

重油层BC已投运

HFO BC layer in service

煤层A给煤机负荷证实>50%，且负荷>??W

Coal layer A feeder load > 50%, and load > ??W

煤层C给煤机负荷证实>50%，且负荷>??W

Coal layer C feeder load > 50%, and load > ??W

3. C煤层点火允许(或)

Coal layer C ignition permission(OR)

轻油层AB已投运, 且煤层B给煤机负荷证实>50%

LDO AB layer in service, and coal layer B feeder load > 50%

重油层BC已投运

HFO AB layer in service

煤层B给煤机负荷证实>50%，且负荷>??W

Coal layer B feeder load > 50%, and load > ??W

煤层D给煤机负荷证实>50%，且负荷>??W

Coal layer D feeder load > 50%, and load > ??W

4. D煤层点火允许(或)

Coal layer D ignition permission(OR)

重油层BC已投运, 且煤层C给煤机负荷证实>50%

HFO BC layer in service, and coal layer C feeder load > 50%

煤层C给煤机负荷证实>50%，且负荷>??W

Coal layer C feeder load > 50%, and load > ??W

5. E煤层点火允许(或)

Coal layer E ignition permission(OR)

重油层EF已投运

HFO EF layer in service

重油层FG已投运，且煤层F给煤机负荷证实>50%

HFO FG layer in service, and coal layer F feeder load > 50%

煤层F给煤机负荷证实>50%，且负荷>??W

Coal layer F feeder load > 50%, and load > ??W

6. F煤层点火允许(或)

Coal layer F ignition permission(OR)

重油层EF已投运


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HFO EF layer in service

重油层FG已投运

HFO FG layer in service

煤层E给煤机负荷证实>50%，且负荷>??W

Coal layer E feeder load > 50%, and load > ??W 煤层G给煤机负荷证实>50%，且负荷>??W

Coal layer G feeder load > 50%, and load > ??W

7. G煤层点火允许(或)

Coal layer G ignition permission(OR)

重油层FG已投运

HFO FG layer in service

煤层F给煤机负荷证实>50%，且负荷>??W

Coal layer F feeder load > 50%, and load > ??W

煤层H给煤机负荷证实>50%，且负荷>??W

Coal layer H feeder load > 50%, and load > ??W 重油层EF已投运, 且煤层F给煤机负荷证实>50%

HFO EF layer in service, and coal layer F feeder load > 50%

8. H煤层点火允许(或)

Coal layer H ignition permission(OR)

重油层FG已投运, 且煤层F给煤机负荷证实>50%

HFO FG layer in service, and coal layer F feeder load > 50%

煤层G给煤机负荷证实>50%，且负荷>??W

Coal layer G feeder load > 50%, and load > ??W

2.7 油母管逻辑控制 Main oil logic control

2.7.1 供油快关阀 oil supply fast valve

开允许：

Open conditions:

所有油角阀全关

All oil angle valves are fully closed

供油压力正常且回油阀开

Oil supply pressure is normal, and oil return valve opened

调节阀已开

Control valve opened

无MFT

No MFT

联锁关：

Interlock close:

MFT

"during oil test" to be included

"during oil test" to be included


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MFT

OFT

OFT

2.7.2 回油快关阀(10EGB90AA500/10EGI90AA500) Oil return motor operated valve

联锁关：

Interlock close:

MFT延时2秒

MFT delay 2 seconds

OFT 延时2秒

OFT delay 2 seconds

3 燃油系统逻辑 Oil system logics

油燃烧器控制方式分单个启动、层启动，就地控制。

单个启控制方式时，可通过软手操对所选定的油燃烧器进行启、停控制；

层控制方式时，可通过CRT软手操，对某一层油燃烧器自动燃烧器启停。

There are three ways to control oil burner: single activation, layer activation, and in-site control.

In single control mode, we can start or stop the selected oil burner through sequence panel in CRT;

In layer control mode, we can automatically diagonally start or stop a certain layer of the oil burner

through CRT soft-hand control.

3.1 轻油燃烧器控制：Oil burner control

该项目中，AB层为轻油 In this project, AB layer is LFO

3.1.1 轻油燃烧器点火允许 A1 light oil burner ignition permission conditions

1. 轻油点火允许（见2.6.2）

Light oil ignition permission

2. 点火柜在远方（1HJF21GH001XB02）

ignition cabinet in remote

3. 就地点火柜可用（1HJF21GH001XB01）

ignition cabinet power not fault

4. 无轻油燃烧器跳闸条件

No light oil ignition trip conditions.

5. 轻油进油阀关到位

light oil valve closed.

6. 轻油吹扫阀关到位

light oil purge valve closed.


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当以上这些条件满足后，在CRT操作站上显示“轻油允许点火”信号，允许启动轻油燃烧器点火顺控。

且当各个油枪的轻油点火条件满足后，轻油层可以投入运行。由运行人员投入油燃烧器时，系统设计时考

虑到给运行人员提供投入单个燃烧器或一层燃烧器的灵活性。

在运行人员通过CRT操作站启动一个指定的燃烧器进行点火时，系统能按顺序，开启快关阀、雾化阀。

如在设定时间内某油枪未被点燃证实，即会自动执行停止程控关闭其对应的进油阀、雾化阀，并执行吹扫

程控，发出“点火失败”的报警。

When these conditions are satisfied, CRT operator station in the CRT display the signal of "permit ignition".

When ignition condition of all oil guns is satisfied, the oil gun can be put into operation. it’s taken in account to

provide the staff with the flexibility of operating single or one-layer burner when designing the system.

When staff launches a designated group of ignition burners through CRT operation, the system can open

the fast valve and atomizing valve orderly. If in a set period of time, any oil gun has not been ignited,

corresponding fast valve, atomizing valves will automatically shut down, and "ignition failure" alarm triggers.

3.1.2 轻油跳闸条件 A1 light oil ignition trip conditions

1. MFT

MFT

2. 轻油OFT

Light oil OFT

3. 进油阀非关10s后，轻油火检无火，延时2s。

inlet oil valve not close in 10s, no light oil flame detected, 2s delay.

4. 正常投运时，进油阀不在开位。

In normal startup, oil inlet valve not opened..

5. 手动停止轻油程控点火。

Manual stop LDO ignition start sequence.

3.1.3 轻油程控点火步序 light oil start ignition sequence

1. 进轻油油枪（1HJF21AV010XB）

Insert light oil gun.

2. 插入点火枪（1HJF21AV011XB）

Insert igniter.

3. 点火枪打火,10秒后退点火枪。（1HJF21AE001YB01）

igniter energize 10s, then retract automatically.

4. 打火时，开轻油油阀（1HJF21AA102YB）


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When start igniting, open A1 light oil valve.

5. 轻油阀开10s后，轻油火检有火信号持续3s，则认为轻油燃烧器投运，程控结束。

10 seconds after light oil valve opening, light oil fire detection is on for 3s, then light oil burner is

running. End of sequence.

3.1.4 轻油程控停止步序 light oil stop ignition sequence

当轻油燃烧器跳闸条件存在时，则自动执行轻油停止程控，停止程控包含吹扫程控步序，当“轻油枪吹

扫请求”信号发出且吹扫允许条件满足时，则自动执行吹扫步序。当“轻油枪吹扫闭锁”信号发生或吹扫允许

条件不满足时，则旁路所有吹扫步序。

When A1 light oil burner trip condition exist, then execute light oil burner stop sequence automatically. Stop

sequence also include purging step, when “light oil gun purging request” signal and purging permissionconditions are on, then execute purging step in stop sequence, otherwise when “light oil purging interlock”

signal or purging permission conditions are on, then bypass all the purging step.

1. 关轻油进油阀

Close light oil inlet valve.

2. 进轻油油枪。（吹扫步序）

Insert light oil gun. (purge step)

3. 进点火枪。

Insert light oil igniter. (purge step)

4. 点火枪打火,15秒后退点火枪。

igniter energize 15s, then retract automatically. (purge step)

5. 打火时，开轻油吹扫阀。（吹扫步序）

When start igniting, open light oil purging valve. (purge step)

6. 3分钟后，关吹扫阀。（吹扫步序）

3 minutes later, close light oil purging valve. (purge step)

7. 退轻油油枪。程序结束

Retract light oil gun. End of sequence.

3.1.5 轻油燃烧器吹扫 A1 light oil burner purging

1. 轻油枪吹扫请求：light oil purging request

当轻油进油阀曾经脱离关位，则产生“轻油枪吹扫请求”信号，当轻油点火停止顺控第六步完成后，

则复位该信号。

Once A1 light oil inlet valve not closed, then “light oil purge request” signal is on, after 6 steps in A1 light

oil stop ignition sequence is finished, reset this signal.

2. 轻油枪吹扫允许：light oil purge permission conditions

here open purge valve


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轻油阀已关

light oil inlet valve closed

无轻油油枪吹扫闭锁信号

No light oil gun purging interlock signal

3. 轻油枪吹扫闭锁条件：light oil purge interlock conditions

MFT

MFT

OFT

OFT

A1吹扫空气压力低

purging air pressure low

A1点火柜电源不正常

ignition cabinet power supply is abnormal.

4. 轻油枪吹扫步序：light oil purging sequence step

请参考3.1.4。

Please refer to 3.1.4.

3.2 重油油燃烧器控制：heavy oil burner control在本项目中，BC, EF, FG为重油层。In this project, BC, EF, FG are HFO layers.

3.2.1 重油燃烧器点火允许 heavy oil burner ignition permission conditions

1. 重油点火允许（见2.6.2）

Heavy oil ignition permission

2. 点火柜在远方（1HJF11GH011XB02）

ignition cabinet in remote

3. 无重油燃烧器跳闸条件

No heavy oil ignition trip conditions.

4. 重油进油阀关到位

heavy oil inlet valve closed.

5. 重油吹扫阀关到位

heavy oil purge valve closed.

6. 重油雾化阀关到位

heavy oil atomization valve closed.

3.2.2 重油跳闸条件 heavy oil ignition trip conditions

1. MFT

MFT


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2. 重油OFT

Heavy oil OFT

3. 重油进油阀非关10s后，重油油火检无火，延时2s。

inlet heavy oil valve not close in 10s, no heavy oil fire detected, 2s delay.

4. 正常投运时，重油进油阀不在开位。

In normal startup, heavy oil inlet valve not opened.

5. 重油火检故障。（1HHA11CU103XB01）

heavy oil scanner fault.

6. 手动停止重油程控点火。

Manual stop HFO ignition start sequence.

3.2.3 重油程控点火步序 heavy oil start ignition sequence

1. 进重油油枪（1HJF11AV010YB）

Insert A1 heavy oil gun.

2. 开重油吹扫阀，重油油雾化阀（1HJR11AA111YB / 1HJR11AA114YB）

Open heavy oil purging valve, heavy oil atomization valve.

3. 吹扫5秒后，关重油吹扫阀。

After 5s purging, close heavy oil purging valve.

4. 开重油进油阀。程控结束。

Open heavy oil inlet valve. End of the sequence.

3.2.4 重油程控停止步序 heavy oil stop ignition sequence

当重油燃烧器跳闸条件存在时，则自动执行重油停止程控，停止程控包含吹扫程控步序，当“重油枪吹

扫请求”信号发出且吹扫允许条件满足时，则自动执行吹扫步序。当“重油枪吹扫闭锁”信号发生或吹扫允许

条件不满足时，则旁路所有吹扫步序。

When heavy oil burner trip condition exist, then execute light oil burner stop sequence automatically. Stop

sequence also include purging step, when “heavy oil gun purging request” signal and purging permission

conditions are on, then execute purging step in stop sequence, otherwise when “heavy oil purging interlock”

signal or purging permission conditions are on, then bypass all the purging step.

1. 关重油进油阀

Close heavy oil inlet valve.

2. 进重油油枪。（吹扫步序）

Insert heavy oil gun. (purge step)

3. 开重油吹扫阀，重油雾化阀。（吹扫步序）

1.no detail about igniter

2. purging valve opening notrequired


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When start igniting, open heavy oil purging valve, open heavy oil atomization valve. (purge step)

4. 3分钟后，关重油吹扫阀,关重油雾化阀。（吹扫步序）

3 minutes later, close heavy oil purging valve and heavy atomization valve. (purge step)

5. 退重油油枪。程序结束

Retract heavy oil gun. End of sequence.

3.2.5 重油燃烧器吹扫 heavy oil burner purging

1. 重油枪吹扫请求：heavy oil purging request

当重油进油阀曾经脱离关位，则产生“重油枪吹扫请求”信号，当重油点火停止顺控第六步完成后，

则复位该信号。

Once heavy oil inlet valve not closed, then “heavy oil purge request” signal is on, after 3 steps in heavy oilstop ignition sequence is finished, reset this signal.

2. 重油枪吹扫允许：heavy oil purge permission conditions

重油阀已关

heavy oil inlet valve closed

无重油油枪吹扫闭锁信号

No heavy oil gun purging interlock signal

3. 重油枪吹扫闭锁条件：heavy oil purge interlock conditions

MFT

MFT

OFT

OFT

吹扫蒸汽压力低

purging steam pressure low

.

4. 重油枪吹扫步序：heavy oil purging sequence step

请参考3.2.4。

Please refer to 3.2.4.


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4 制粉系统 Coal system logic

4.1 磨煤机启停顺空 Pulverized coal mill start/stop sequence

煤粉燃烧器控制方式有遥控操作方式和顺控操作方式，还包括火焰检测器监视系统。遥控操作是指运

行人员通过CRT操作单独启动和停止给煤机、磨煤机、风门等各种设备；程控操作是通过机组程控顺序按

照规定的逻辑程序、联锁条件对煤闸门、给煤机、磨煤机、风门等设备进行顺序启、停控制。

The control ways of pulverized coal burner are the remote control, sequence-program control, and also

flame detector monitoring systems. Remote operation means that the operator can start or stop the coal by CRT

operation station respectively; Program-controlled operation is to start or stop coal chain gates, coal feeder, coal

mill, dampers and other equipments in accordance with unit control sequence, the logic program provisions and

interlock conditions.

启动、停止过程中的控制对象是：给煤机、磨煤机、风门等各种设备。

The controlled objects in the process of start/stop are the coal feeder, the mill, valve, etc.

4.1.1 磨煤机顺控启动条件 Pulverized coal mill sequence start permission

1。煤点火条件允许（见2.6.5）

Coal ignition permit.

2。润滑油系统条件满足:

Lube oil system in service.

磨煤机齿轮油箱油池温度>25度

Mill gear oil tank temperature >25.

磨煤机推力轴承油槽温度= 4Mpa.

4.1.2 磨煤机顺控启动步序 Pulverized coal mill sequence start steps

1．命令：开磨煤机出口气动关断门。

反馈：磨煤机出口气动关断门已开。

Command：open mill outlet damper

Feedback:： all mill outlet damper opened


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2．命令：开密封风入口电动风门。

反馈：密封风入口电动风门已开。

Command：open seal air inlet valve

Feedback:：seal air inlet valve opened.

3．命令：开冷一次风气动插板门。

反馈：冷一次风气动插板门开到位。

Command：open cold PA air valve

Feedback:：cold PA air valve opened.

4．命令：开热一次风气动插板门。

反馈：热一次风气动插板门开到位。

Command：open hot PA air valve

Feedback:：hot PA air valve opened.

5．命令：一次风风量投自动。

反馈：大于最小一次风量（1350kg/h）且密封风与一次风压差合适。

Command：PA air flow control in auto mode

Feedback:：PA air flow greater than minimum (1350kg/h) and differential between seal air and PA air

is appropriate

6．命令：分离器出口温度投自动。

反馈：分离器出口温度合适。

Command：separator outlet temperature in auto mode

Feedback:：separator outlet temperature appropriate.

7．命令：开给煤机出口电动闸门,入口电动门，提升磨辊。

反馈：给煤机出口电动闸门已开，入口电动门已开，磨辊提升到位。

Command：open coal feeder outlet damper, coal feeder inlet damper, lift grinding roller

Feedback:：coal feeder outlet&inlet damper opened, grinding roller lifted in position.

8．命令：启磨煤机主电机。

反馈：磨煤机主电机起动后延时60秒。

Command：start mill main motor.

Feedback:：mill main motor started and 60s delay.

9．命令：启给煤机。

反馈：最小给煤量启动给煤机, 延时30s。

Command：start coal feeder.

Feedback:：coal feeder started with minimum quantity, 30s delay.

gate open

gate open


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10．命令：下降磨辊。

反馈：磨辊下降到位。

Command：fall grinding roller.

Feedback:：grinding roller falled in position.

11．命令：投变加载。

反馈：变加载状态到位。

Command：start variation load .

Feedback:：variation load in status.

4.1.3 磨煤机停止顺控步序 Pulverized coal mill stop sequence

1. 命令：给煤机至低转速(


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Feedback:：coal feeder stopped，mill grinding roller lifted in position.

7. 命令：关给煤机出口门。

反馈：给煤机出口门已关。

Command：close coal feeder outlet valve。

Feedback: coal feeder outlet valve closed.

8. 命令：停磨煤机

反馈：磨煤机已停后延时60秒。

Command：stop mill motor.

Feedback:：mill motor stopped, 60s delay.

9. 命令：磨辊下降

反馈：磨辊下降到位

Command：fall the grinding roller.

Feedback:：grinding roller fallen in position.

10. 命令：关冷一次风气动插板门

反馈：冷一次风气动插板门关到位

Command：close cold PA air guillotine damper.

Feedback:：cold PA air guillotine damper


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No mill trip conditions.

3. 磨煤机电机线圈温度


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4.2.1.2 保护停 protect stop conditions

1. MFT

MFT

2. 两台一次风机均停

Both PA fan stopped.

3. 磨煤机运行中，出口气动插板门已关（4/4）,延时5秒。

Mill outlet damper closed (4/4) while mill motor is running，5 sec delay.

4. 磨煤机分离器出口温度>120度

Mill separator outlet temperature >120.

5. 磨煤机一次风风量低低

Mill PA air flow low low.

6. 磨辊轴承润滑油温度>120度

Mill grinding roller lube oil temperature>120.

7. 失去火焰跳磨（4/4）,延时2秒

Loss of flame (4/4)，2 sec delay.

8. 液压油站加载油泵停或加载油出口压力低130

10. 磨煤机电机轴承温度>85度

Mill motor bearing temperature >85.

11. 磨煤机电机铁芯温度>85度

Mill motor winding iron core temperature >85.

12. 密封风与一次风压差低

Differential pressure between seal air and PA air is low

13. RB跳磨

Runback.

4.2.1.3 磨煤机跳闸条件满足后动作设备 interlock device as below after mill trip condition

satisfied:

1. 跳闸磨煤机

Trip mill motor.

2. 跳闸对应给煤机 Trip coal feeder.

include PA hdrpressure low


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3. 关给煤机出口电动闸门

Close coal feeder outlet valve.

4. 关冷热一次风气动挡板

Close cold&hot PA air damper&valve.

5. 关磨煤机出口气动关断门

Close mill outlet damper.

6. 关密封风入口门

Close mill seal air inlet valve.

4.2.2 磨煤机稀油站高速油泵 mill high speed lube oil pump

4.2.2.1 启允许 start permission conditions

1. 齿轮箱油池油温> 25度

Gear oil tank temperature > 25.

4.2.2.2 自动启 auto start conditions

1. 稀油站低速油泵已启，延时4秒

Low speed lube oil pump started, 4s delay.

2. 备用按钮已投情况下，高速油泵B已启5秒延时且出口压力低

When standby button is on, high speed oil pump B started, 5s delay and outlet pressure low.

3. 备用按钮已投情况下，高速油泵B已停

When standby button is on, high speed oil pump B stopped.

4.2.2.3 停允许 stop permission conditions

1. 磨煤机已停，延时3600秒

Mill stopped, 3600s delay.

4.2.3 磨煤机稀油站低速油泵 mill low speed lube oil pump


1. 齿轮箱油池油温< 25度

Gear oil tank temperature< 25.


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1. 备用按钮已投的情况下，低速油泵B已启10秒且出口压力低

When standby button is on, low speed oil pump B started, 5s delay and outlet pressure low.2. 备用按钮已投情况下，低速油泵B已停

When standby button is on, low speed oil pump B stopped.

4.2.3.3 自动停 auto stop conditions

1. 齿轮箱油池油温> 25度

Gear oil tank temperature> 25.

4.2.4 磨煤机稀油站电加热器

mill lube oil heater


1. 高速油泵或低速油泵运行时，齿轮邮箱油温38度。

Gear oil tank temperature> 38.

4.2.5 磨煤机加载油泵 mill hydraulic oil pump

4.2.5.1 停允许 stop permission conditions

1. 磨煤机已停，延时3600秒

Mill stopped, 3600s delay.

2. 磨辊下降到位(磨辊下降到位反馈,或磨辊下降指令发出60s)

Mill grinding roller fallen in position.

4.2.6 磨煤机加载油泵电加热器 mill hydraulic oil pump heater


1. 加载油泵运行时，加载油箱温度< 20度

Hydraulic oil tank temperature


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4.2.6.2 自动停 auto stop conditions

1. 加载油泵已停

Hydraulic oil pump stopped2. 加载油箱温度>60度

Hydraulic oil tank temperature > 60

4.2.7 磨煤机液动换向阀 mill hydraulic reversing valve

4.2.7.1 开允许 auto start conditions

1. 磨辊下降到位(磨辊下降到位反馈,或磨辊下降指令发出60s)

Mill grinding roller fallen in position.

4.2.8 磨煤机磨辊 mill grinding roller

4.2.8.1 磨辊提升允许 grinding roller lifting permission conditions

1. 加载油泵已运行

Hydraulic oil pump is running.

2. 液动换向阀已关闭

Hydraulic reversing valve closed.

4.2.8.2 磨辊下降允许 grinding roller falling permission conditions

1. 加载油泵已运行

Hydraulic oil pump is running

2. 磨煤机已停60s, 或磨煤机运行时给煤机运行30s

Mill motor stopped 60s. Or coal feeder is running 30s while mill motor is running

4.2.9 给煤机 coal feeder


1. 磨煤机已运行

Mill is running.

2. 给煤机出口闸板门已开

Coal feeder outlet damper opened.

3. 给煤机设定在最低转速。

if coal feeder is not running and mill is

loaded with coal, how to bring the rollerdown?

coal feeder in remote to beincluded

seal air valve open shall beconsidered


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Coal feeder speed setpoint at lowest speed.

4. 给煤机跳闸信号不存在。

Coal feeder trip conditions not exist .

4.2.9.2 保护停 protect stop conditions

1. 给煤机运行时，堵煤报警存在

Discharge plugged signal exist while coal feeder is running.

2. 给煤机运行时，超温报警存在

Over temp alarm signal exist while coal feeder is running.

3. MFT

MFT.4. 磨煤机跳闸

Mill motor tripped.

5. 当给煤机运行时，磨煤机出口门已关

Mill outlet damper closed while coal feeder is running.

6. 当给煤机运行时，给煤机出口门已关

Coal feeder outlet damper closed while coal feeder is running

4.2.10 给煤机入口闸板门 coal feeder inlet damper

单操Manual operation

4.2.11 给煤机出口闸板门 coal feeder outlet damper

4.2.11.1 开允许open permission conditions

1. 无磨煤机跳闸条件

No mill trip condition exist.

4.2.11.2 关允许 close permission conditions

1. 给煤机已停

Coal feeder stopped.

4.2.11.3 保护关 protect stop conditions

1. 磨煤机跳闸

Mill tripped.

include mill outlettemp for starting

feeder fault to beincluded


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4.2.12 磨煤机出口气动插板门 mill outlet valve


1. 煤层点火允许

Coal ignition permit.

4.2.12.2 保护开 protect open conditions

1. 磨煤机运行

Mill is running.

4.2.12.3 保护关 protect close conditions

1. 磨煤机未运行

Mill not running.

2. MFT

MFT.

4.2.13 磨煤机冷一次风气动插板门 mill cold PA valve


1. 磨煤机出口关断门已开（4/4）

Mill outlet damper opened (4/4).

2. 磨煤机密封风系统投运正常（见磨煤机启动允许条件）

Mill seal air system in service. (refer to the mill startup permission conditions)


1. 磨煤机未运行

Mill is not running.


1. 磨煤机已停

Mill stopped.

2. MFT

MFT.


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4.2.14 磨煤机热一次风气动插板门 mill hot PA guillotine valve


1. 磨煤机出口关断门已开

Mill outlet damper opened .

2. 磨煤机密封风系统投运正常（见磨煤机启动允许条件）

Mill seal air system in service. (refer to the mill startup permission conditions)

3. 磨煤机冷一次风气动插板门已开

Mill cold PA valve opened.


1. 磨煤机已停

Mill stopped.

2. MFT

MFT.

4.2.15 磨煤机入口密封风电动门 mill seal air inlet valve


1. 任一密封风机已启

Either one of the seal air fan started.


1. 密封风机全停

Both seal air fan stopped.

5 密封风机 Seal air fan

5.1 密封风机(A/B逻辑相同) 1HFW11AN001/1HFW12AN001 Sealing air fan

允许启：

Start permissive:

无跳闸条件

No trip conditions

任一台一次风机运行


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Any primary air fans is running

入口电动调门全关

Inlet control damper closed

定子线圈温度小于90度

Motor stator winding temperature < 90.

电机轴承温度小于65度

Motor bearing temperature < 65.

轴承温度小于65度

Bearing temperature < 65.

允许停：

Stop permissive:

所有磨均已停

All mills are stopped.

或者（or）

A和B风机全运行，且母管风压正常。

SAF A and SAF B running and header pipe pressure normal

联锁启：

Interlock start:

当联锁按钮投入后，且满足密封风机启动允许条件，一台风机运行时密封风母管与热一次风母管

压差低（ 130 (2/3), 2s delay.

电机轴承温度大于85度

Motor bearing temperature > 85.

轴承温度大于85度

Bearing temperature >85.


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6 火检冷却风机 Scanner air fan

6.1 火检冷却风机(1HXA01AN001/1HXA02AN001) Fire detection Scanner air fan

火检冷却风机A，B 是按备用方式设置的，一台风机可以提供全部冷却风用量。当在工作的风机有故

障或风压低时, 启动另一台风机. （设有自动联动开关）

Scanner air fan A and B are preset as standby mode for each other, one air fan can supply full cooling air

flow in used. Another standby fan will start when the running fan breaks down or air pressure is low. (interlock

switch is preset)

允许启： Start permissive:

无电源故障

Scanner air fan power not fault

联锁启：

Interlock start:

联锁投入，另一台风机跳闸

FAN A standby button is on and another Scanner air fan is tripped

联锁投入，火检冷却风机出口风压低低

FAN A standby button is on and outlet pressure of Flame check cooling fan is low low

允许停：

Stop permissive:

MFT动作12小时后

MFT delay 12 hours

或者（or）

另一台风机运行且出口压力正常

The other scanner is running and the outlet pressure is normal.

furnace temperature

660 MW Harbin Boiler FSSS Writeup

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