PRESENTATION PRESENTATION ON ON

ESP CONTROLLERSESP CONTROLLERS

ESP T/R SET CONTROL

ANALOG CONTROLLER AICE - C

RAPPING CONTROL

SYNCHRONOUS PROGRAMMER

AUTORAPPER

UP BASED RAPPER CONTROLLER

MANUAL CONTROL COMPUTER CONTROLLEDPRECIPITATOR OPERATION

ESP CONTROL

BAPCON

RAPCON

(IOS)

ADVANCEMENTS IN ESP CONTROLS

+

+

+

+

+

+

BACK CORONA

x i

qs

+++

+

--

-----

EPQs E p

F = Qs . Eav Ep . Eav Vp . Vav

Modified Intermittent Charging

• Increases the base voltage

• More suited for high charge ratio operation

• suitable for high resistivity dust

• Outlet emission Power consumption (mg/Nm^3) (kW) Conventional charging 351 300 Intermittent

charging 127 57

BAPCONBAPCON

BAPCON

Intermittent charging, requirement of wide

charge ratio (CR) range of 1:159.

Optimiser logic for C.R, avoids tedious manual

tunning.

Base charging, increases base voltage.

Peak & valley KV measurement : Diagnostic &

tunning facilitated.

VARIOUS DISPLAYS IN BAPCON

- Precipitator current

E - Precipitator voltage

H - Sparks per minute

O - Im limit

1 - Is limit

2 - S control

3 - Time control

4 - Stabilization time

5 - U.V. Limit

6 - C.R.

7 - Pulse current limit

8 - Repeat time

9 - Address

- Peak & valley voltage

P - Base charge

L - Base charge current

ALARMS IN BAPCON

TRIP ALARMS:

– E1 - Safety chain broken.

– E2 - Eprom faulty.

– E3 - Power supply failure.

– E4 - Over voltage

– E5 - Ash level very high (for 10 min.)

– E6 - T/R temp very high / TH. Ovld.

– E7 - Bucholtz bottom float.

WARNING ALARMS:

– T/R temp high.

– Bucholtz top float.

– Ash level high.

– Under voltage.

PARAMETERS IN BAPCON CONTROLLED BY COMPUTER

Power on /off

Optimiser on /off

Alarm reset

Charge ratio

Current limit

Base charge set

Optimiser repeat time

RAPCONRAPCON

RAPCON

Microprocessor based controller for 16 rapper motors

Serial communication (balanced current loop)

feedback on motor operation & error annunciation

64 sets of rapping sequences pre-programmed

LED indications for motor selection motor running & motor

error

Real time setting

ADVANCED FEATURES OF RAPCON

Error checking for the motors. Setting of rapper timings. Setting of real time. Auto on/off selection. Manual on/off selection. Password protection. Setting of program set no. Reading of rapper times. Reading of real time. Reading of program set no. Reading of rapcon address. Reset alarm. Stan by mode selection. Communication with IOS-PC Rapping factor selection - [IOS]

RAPCON FUNCTION SELECTION

1999.05.19 10:23:45

SETFUNCTION

9. PROGRAMSET NO?

8. DISPLAY REAL TIME?

7. DISPLAY TIMES?

1. PASSWORD?

2. SET RAPPER TIMES?

3. SET REAL TIME?

4. SET AUTO ON/OFF?

5. SET MANUAL ON/OFF?

6. SET PROGRAM SETNO?

10. RAPCON ADDRESS?

11. RESET ALARM?

NEXT FUNCTION NO =

To reach a function with function 1 to 6 the RAPCON must be in LOCAL mode

Access to functions 2 to 6 possible only if pass word is answered correctly.

Acess to functions 7 to 11 does not require answering the pass word.

To reach next function number either press the required number meant for the function and press enter yes (OR) press set function repeatedly till the required function is displayed.

NEXT FUNCTION NO =

NEXT FUNCTION NO = 7 7 DISPLAY TIMES ?

7

ENTERYES

PARAMETERS IN RAPCON CONTROLLED BY IOS - P.C.

Rapping factor. Program set no. Auto on/off. Manual on/off. Set real time. Set rapping time. Get rapping time. Reset alarm.

IOSIOS

NEED FOR COMPUTER CONTROL OF ESPsNEED FOR COMPUTER CONTROL OF ESPs

Tedious manual tuning of parameters in each control.

Status monitoring of large number of fields.

Optimisation of ESP parameters.

The need of supervision & control of ESP from UCB.

Data logging, alarm logging & Graphical

representation of precipitator parameters.

Communication with plant computer.

IOS CONSISTS OF …..

BAPCON

RAPCON

IOS - PC

BHELs advanced precipitator controller.

Rapper controller.

Multitasking real time PC.

FUNCTIONS OF IOS - PCFUNCTIONS OF IOS - PC

Controls & monitors BAPCONs & RAPCONs. Closed loop control of ESP through….

Opacity algorithm. Rapping set no. Algorithm. Rapping power off algorithm. Rapping time factor algorithm. Optimiser algorithm.

Centralised monitoring & control from UCB. Alarm monitoring & print out of status.

ADVANTAGES OF IOSADVANTAGES OF IOS

Wide C.R suitable for Indian conditions. Automatic optimisation of C.R. base charging. Peak & valley KV measurement. Pre-programmed rapping sequences. Reduces emission & energy consumption. Pays back investment in couple of years. Software on ROM cards. Indigenous Hardware & Software. Upgradable. Maintenance support. Customising to needs.

ALGORITHMS IN IOS

Opacity algorithmRapping power off algorithmRapping set no. AlgorithmOptimiser algorithmRapping power factor algorithmAuto selection of opacity monitor based

on ID fan status.

INTEGRATED OPERATING SYSTEMINTEGRATED OPERATING SYSTEMENNORE TPS #1ENNORE TPS #1

TEST RESULTS (SERIES - 1)TEST RESULTS (SERIES - 1)

REDUCTION IN EMISSION : 38%

OPTICAL DENSITYCR SETTING WITH BASE WITHOUT BASE

RANGE CHARGING CHARGING 1 - 15 25.2 26.1 1 - 31 17 21.1 1 - 99 16.2 19.7

ARRANGEMENT OF IOS & STORAGE PC

RS 232 C

FEATURES

1. IOS PC TO STORAGE PC COMMUNICATION - RS 232C

2. BAUD RATE - 4800 BAUD

3. DATA TRANSFER RATE - 74 RECORDS / 10 MIN. (PROGRAMMABLE TRANSFER DATA)

4. HARD DISK CAPACITY OF STORAGE PC 20 GB ( OR ABOVE )

5. BACKUP PERIOD - 10 YEARS FOR 20 GB

FIELD-1

FIELD-2

FIELD-3

FIELD-4

FIELD-5

FIELD-6

ESP-1 ESP-2 ESP-1 ESP-2

ALI-HIGH HOPPER HEATER

ESP-1

ESP-2

SUPPORT INS.HEATER

SHAFT INS.HEATER

ALIVE

STATCON-E

REBOOT

THANKING YOUTHANKING YOU