District Heating the Grundfos Way – meeting all · PDF fileDistrict Heating the Grundfos...
Transcript of District Heating the Grundfos Way – meeting all · PDF fileDistrict Heating the Grundfos...
GRUNDFOS DISTRICT HEATING
www.grundfos.com
Being responsible is our foundationThinking ahead makes it possible
Innovation is the essence
District Heating the Grundfos Way
– meeting all needs
96
49
59
56
11
02
(GB
)
Flow Thinking – making district heating better
Grundfos is the world’s leading pump manufacturer, and has
played a major role in the district heating industry for many years.
As part of this role, Grundfos provides its customers with the
most comprehensive range of district heating products available
anywhere, circulating hot water to factories, offices, hospitals,
hotels and homes. Grundfos district heating is backed by in-depth
experience and know-how as well as our capacity to optimise
the whole district heating system rather than merely a single pump
installation.
We have one single consistent approach, and we call it Flow Thinking.
This is the Grundfos way of ensuring that we always provide
our customers with the best possible district heating solutions.
Working in partnership
Flow Thinking also means that we are committed to working in part-
nership with our customers, to ensure that our solutions meet all
their requirements – from the pumps, application software and con-
trol systems to all the service and support facilities required both now
and in the future.
Grundfos meets all district heating needs
Grundfos is the only pump supplier in the world that provides a full range of solutions to the needs of companies in the
district heating business. Whatever the requirement – Grundfos has a solution. This includes pumps, control systems, sup-
port tools and the experience to combine these into the most efficient district heating solution.
Glandless pumps Grundfos MAGNA/UPE/UPSTemperature range -10°C to +120°CPressure range PN 10 (10 bar)Power range 0.085 kW to 1.5 kWSpeed Speed-controlled or 3-speedPump housing Cast iron or bronzeVariants Twin pumps available
End suction pump Grundfos NB/NK (E)Temperature range -25°C to +140°CPressure range PN 16 Power range 0.37 kW to 315 kWMotor Standard IECSpeed Speed controlled or single speedPump housing Cast iron or bronze (depending on model)Impeller Cast iron or bronze
In-Line pumps Grundfos GTI/IFVTemperature range -25°C to +150°CPressure range PN 10, 16, 25Power range 3 kW to 600 kWMotor Standard IECSpeed Single speed (external speed control)Pump housing Cast ironImpeller Cast iron or bronzeVariants Close or spacer coupled
Benefits Low Life Cycle Cost Very wide product range Easy installation Easy service Saves floor space
Benefits Low Life Cycle Cost Wide product range Easy installation (block)
In-Line pumps Grundfos TP/LM/LP/CLM (E)Temperature range -25°C to +140°CPressure range PN 10, 16, 25Power range 0.12 kW to 45 kWMotor Standard IECSpeed Speed controlled or single speedPump housing Cast iron or bronze (depending on model)Variants Twin pumps available
Benefits Low Life Cycle Cost Wide product range Easy installation Easy service Saves floor space
Benefits Very low noise level Maintenance free Low Life Cycle Cost Wide product range Easy installation
H [m]
Q [m3/h]
UPE/UPS
“For us, district heating means knowledge transformed into strong partnerships!”
H [m]
Q [m3/h]
TP/LM/LP/CLM (E)
20
6
2
4 10150
50
10
10 6000200 2000
5
40 80
20
6
2
4 10 40 80
20
6
2
4 10 40 80
H [m]
Q [m3/h]
IFV/GTI
20
6
2
4 10150
50
10
10 6000200 2000
5
40 80
20
6
2
4 10 40 80
20
6
2
4 10 40 80
Q [m3/h]
UPS S 200
20
6
2
4 10150
50
10
10 6000200 2000
5
40 80
20
6
2
4 10 40 80
20
6
2
4 10 40 80
H [m]
20
6
2
4 10150
50
10
10 6000200 2000
5
40 80
20
6
2
4 10 40 80
20
6
2
4 10 40 80
1 2
200H [M]
100
50
20
10
5
104 30 80 200 600 1500 3000 6000
Q [m3/h]
Power plants
Pump types: GTI/IFV/ NB/NK(E)Head upto: 150 mFlow upto: 2000 m3/h
Substations / Boiler houses
Pump types: GTI/IFV/NB/ NK/LM/LP/TP(E)Head upto: 100 mFlow upto: 1000 m3/h
Substations in buildings / Mixing loops in buildings
Pump types: UPS/UPE/ LM/LP/TP(E)Head up to: 30 mFlow up to: 100 m3/h
Power plantsSubstations/Boiler houses Substations in buildings / Mixing loops in buildings
UPS
Seri
es 2
00
UPE
Seri
es 2
00
0
TPE
Seri
es 2
00
0
In-L
ine
In-L
ine
E-pu
mps
End
suct
ion
End
suct
ion
pp
E-pu
mps
CR/C
RE
Hyd
ro 2
00
0
Pump system
Main pumps
Boiler shunts
Temperature shunt
Flow filter
Lull heating
Exhaust gas exchanger
Mixing loops
D tiDomestichot water recirculation
Pressure holding
Pum
pty
pe
A typical district heating system
consists of many parts, including:
power plants
substations and
boiler houses
substations in individual
buildings
installations in individual
buildings and houses
“For us, district heating means overall viewtransformed into an intelligent selection!”
“For us, district heating means calculationtransformed into saving in energy!”
Strength and scope
Grundfos has the strength and the scope to meet the entire
range of district heating needs, right from the largest to the
smallest.
The table to the left provides you with an overview of the dif-
ferent Grundfos pump types, and the purposes they serve in
a typical district heating system.
System 11 constant-speed pump + 1 standby pumpSelected pump: 2 x end suction 80-250Control panel: Motor protectionAccess to system data: NonePrice index: 100 (4,500 EURO))Yearly energy consumption: 52,821 kWh/year
System 22 speed-controlled pumps + 1 standby pumpSelected pump: 3 x Grundfos TPE 80-240Control: PMUAccess to system data: YesPrice index: 162 (7,290 EURO)Yearly energy consumption: 26,516 kWh/year
Electronic speed controlequals low Life Cycle CostsIn district heating, large amounts of energy are expended
in transporting the hot water from one place to another.
Grundfos electronic speed control systems are designed to
make it possible to achieve substantial reductions on the
energy expenditure involved in pump operations.
Electronic speed control makes sure that the operating pro-
file of each pump matches the load at any given time. This
is achieved with frequency converters and controls fitted
internally on all pumps up to 22 kW, and externally on all
larger models.
Grundfos electronic speed control systems minimise energy
costs, and are a crucial part of the constant Grundfos focus
on the overall Life Cycle Costs of pump systems. In many
cases there is a payback time of 1–2 years on the extra cost
for the speed controlled pump solution.
Energy saving warranty
We know from experience that Grundfos district heating
pumps provide our customers with significant savings in
operating costs, and thus lower overall Life Cycle Costs.
Because of their extremely large size, Grundfos GTI/IFV
In-Line pumps therefore provide major savings potential.
And we are so confident about their performance that
Grundfos provides a special warranty on these pumps,
undertaking to refund any shortfall between the energy
consumption specifications and actual working results.
EURO120,000
100,000
80,000
60,000
40,000
20,000
0
Payback time
0 2 4 6 8 10 12 14 16 18 20
EXAMPLEEnergy consumption Life Cycle Cost - 20 years operation
System 1
System 1
Years of operation 105,642 53,032 Energy cost
1,500 1,500 Maintenance cost
5,200 7,300 Initial cost
Endsuction NB/NK (E)
In Line dryrunner TP/LP/GTI/IFV (E)
In Line dryrunner TP/LM/LP (E)
Wet-runner UPS (E)
3 4
The preferred pump design
At Grundfos, we work with our customers all the way
along the line, to help them get the best results and the
greatest savings from using Grundfos pump systems.
This is why we are firm believers in training, and why
Grundfos has set up The Poul Due Jensen Academy – a
unique international training facility equipped with the
most sophisticated technical facilities and staffed by a
team of professional instructors. The Academy, located in
Denmark, is where Grundfos staff are trained not only in all
the technical aspects of pump systems, but also in how to
listen carefully to customers and the details of their needs.
Spreading the news
We also constantly hold seminars at numerous
locations around the world. These seminars look at
how to minimise installation costs, how to improve
comfort levels and – perhaps most importantly – how
to improve operating efficiency when running Grundfos
installations.
Supporting you
To assist our customers and working partners in selec-
ting the right equipment to meet their needs, we have
developed a selection of special support tools:
The Grundfos System Guide for District
Heating for dimensioning
WinCaps for easy product selection
Support tools
“For us, district heating means pumptechnology transformed into reliability!”
“For us, district heating means listeningtransformed into ongoing support!”
District Heating System GuideThis hard-copy guide provides an overview of district heating sys-tems as well as giving technical information about the different solutions possible - and the Grundfos products required.
WinCAPSWinCAPS (Computer Aided Product Selection software) is the Grundfos electronic product catalogue and selection tool. It is an invaluable aid in pump selection and dimensioning, enabling users to calculate the size of pump required for each particular job. WinCAPS also includes the software to calculate life cycle costs and pay-back times.WinCAPS is only available on a CD-ROM.
Optimised design
The design of Grundfos In-Line pumps is specially opti-
mised for use in district heating systems. They are compact
and easy to install, and the extensive range of different
sizes, combined with electronic speed control, means that
the capacity always matches the exact need.
Experience shows that Grundfos In-Line pumps are the
most popular choice for most district heating installations,
because they provide substantial benefits compared to
horizontal split case pumps and end suction norm pumps.
Better pipe layout
In contrast to norm pumps, In-Line pumps allow a straight
pipe layout, often reducing installation cost.
Fewer shaft seals
In-Line pumps have only one shaft seal, whereas a split
casing pump has two shaft seals, increasing the risk of wear
and leakage.
No bearings
There are no bearings in the In-Line pump, which results in
fewer wearing parts
Short and rigid construction
This implies stable operation even at the varying speeds
associated with frequency converter operation.
Fewer wearing parts
The only parts subject to wear are the motor bearings and
one single shaft seal, wearing and set of O-ring gaskets.
Easy to service
There is free access to wear rings, impeller and shaft seal
as soon as the motor with the rotating element (upper
part, shaft, coupling and impeller) has been lifted out of
the pump housing. Replacing the impeller and shaft seal
does not require new line-up of the pump.
Small footprint
As the pump is vertical, it takes up relatively little floor
space, which means more room for other equipment in
the pump room.
Low weight
In-Line pumps have a comparatively low weight because
no foundations are required, as is the case with horizontal
split casing pumps.
5 6