Danfoss DSS1 Data sheet

Data Sheet
Welded District Heating Stations Type DSS1
General description and application:
Maximum operating parameters:
District heating transfer stations provide the link between district heating suppliers and customers’ systems. They incorporate the necessary equipment to tailor the supplied heat to the needs of the object premises as specied in the heating supply contract. In this they need to comply with all applicable standards and with the supplier’s technical connection conditions. Indirect connections (in which district heating and in­house systems are hydraulically isolated) incorporate components to separate the systems (heat exchanger), to limit the ow volume to that specied in the contract, regulate the secondary supply temperature and measure the energy consumption. The system described here is a standard type where primary medium is steam. On secondary heating circuits or modules can be connected optional.
Primary
Maximum permissible supply temperature, primary TVP 200 °C Maximum permissible operating pressure, primary PZP 12,4 bar (g) Rated pressure, primary PN 16 Maximum permissible pressure dierential, primary DPP 10 bar Maximum permissible mass volume, primary MZP 2.200 kg/h
Secondary
Maximum permissible supply temperature, secondary TVS 110 °C Maximum permissible operating pressure, secondary Rated pressure, secondary Maximum permissible ow volume, secondary VZS 73 m3/h bei w <= 1,5 m/s
PZS 10 bar or pending from safety valve
PN 10
Technical data: Types: Codes:
Materials:
DHS -SR MT/PL
Type: DSS1 IT xxx-xxx-0000-MD -> 040-040 050-050 065-065 080-080 100-100 125 -125
SAP Code -> 004X6281 004X6282 004X6283 004X6284 004X6285 004X6286
MZP [kg/h] max. ~ 150 225 450 600 120 0 1650
VZS [m3/h] dT 20K 4300,0 6450 129 00 17200 34400 47300,0
DN size steam DN 40 DN 50 DN 65 DN 80 DN 100 DN 12 5
DN size condensate DN 20 DN 20 DN 20 DN 20 DN 20 DN 20
DN size secondary DN 40 DN 50 D N 65 DN 80 DN 10 0 DN 125
Typ e Producer capacity ca. -> 100 kW 150 kW 300 kW 4 00 kW 800 kW 110 0 k W
Motorized valve DANFOSS VFGS2 PN16 32 / KVS16 32 / KVS16 50 / KVS32 65 / K VS50 80 / KVS 80
Combi valve DANFOSS AVQ M PN16 15 / 1,0 15 / 1,0 15 / 1,6 15 / 1,6 15 / 2,5 15 / 4,0
Heat exchanger SECESPOL SHR-VAS X 2.11 3.18 5.38 6.50 9.88 12 .114
DN size DN 40 DN 50 DN 65 DN 80 D N 10 0 D N 10 0
Safety valve GÖTZE/AR I 851H4 /12903 ½" ¾" 1" 1" 32 / 50 40 / 65
Pipes and pipe ttings, anges, moulded parts, sleeve nuts 1.0352, P235GH-TC1, CC491K (RG-5) Heat exchanger 1.0038 / 1.4301 / 1.4307 / 1.4541 Fittings 0.6025 (GG25), 0.7043 (GGG-40. 3), CC491K (RG-5) Insulation (heat exchanger)
Insulation (condensate- and secondary)
VD.JV.D1.02 © Danfoss 02/2016
Mineral ber mats/sheet metal coated RAL5000 PU Hard foam λ=0,029 W/mK (insulation class 3 acc. EN 12828/Annex C)
100 / KVS125
1
Data Sheet Welded District Heating Stations Type DSS1
Function:
Circuit diagram:
Steam substations provides special kind of indirect systems. Mainly steam is existing, if due to industrial processes of this must be generated and can also be used for heating.
Here, the most common application of the con­densing control is shown. The main part of these systems is a standing Tube&Shell heat exchanger (HEX). The steam is here placed inside the tube of the device. Via control valve (24/25) on the conden­sing side of the system is the necessary secondary supply temperature (S3) is adjusted according to demand. On the steam side there is an integrated control valve (20/21) which in accordance with the statutory regulations is aware of the beyond the acceptable parameters on the secondary side. For this are DIN-securit y-proven thermostats (560/565) and, if necessar y, safety pressostate (570/571) placed on secondary circuit. The use of depend on the pre­sent parameters of the system and can be adjusted individually as an option.
S1
An optional selec table vacuum breaker (50) ensures that after switch o, for example, the system (steam safety control valve 20/21 and condensing control valve 24/25 closed) can give rise to no operation of the heat exchanger. Depending on the state is via the condensing control valve in tube of the heat exchanger precisely control the secondary supply temperature is possible.
Secondary additional heating modules can be con­nected. This can be adapted to the application of the electronic controller, if necessary.
Steam substations are always individually planned and explaining systems, where a high level of the accuracy already in designing is required.
With questions to design and individual adaptation to the conditions, please contac t our sales engineers or the technical support.
ECL 310
50
opt.
560 565
opt.
100
200 220 430 2 0 / 21 430 432
201 250 201 24 /25 201 221 4 01
201
200 Bellows shut-o valve 201 Bellows shut-o valve
220 Dirt trap / Strainer 221 Dirt trap / Strainer (ne screen) 250 Non-return valve 20 Motorized control valve 21 Electrial actuator 24 Combi (control) valve 25 Electrial actuator 400 Industrial thermometer 401 Industrial thermometer 432 Manometer shut o valve & siphon 431 Manometer 50 Vacuumbreaker (optional) HEX Tube & Shell heat exchanger
400
HEX
570
570
opt
S3
opt
S5
280270431
270 Drain valve 280 Drain valve 560 Safety double thermostat TC/STM 565 Safety thermostat STL (optional) 570 Pressure transmitter max. (optional) 100 Safety valve 440 Manometer MAG Pressure retention connector 571 Pressure transmitter min. (optional) 210 Buttery valve 410 Integrated bimetall thermometer S1 Outdoor temperature sensor (loose) S3 Supply temperature sensor S5 Return temperature limiter (sensor) EC L 310
Electronic regulator
MAG 571
opt
210 410
210 410
2
VD.JV.D1.02 © Danfoss 02/2016
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