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KL - HN Series

Energetics | Heat substation | KL - HN Series


COMPACT HEAT EXCHANGER – KL-HN series  Pressure independent heat exchanger station


Heat transfer - exchanger stations are designed for systems with a primary heating medium temperature to 140°C and pressures up to 2.5MPa.

This allows the pressure to separate hot water on primary and secondary side to ensure the independence facility for distribution heating networks (DH). An important parameter for direct hot water, the maximum hardness of cold water up to 12°dH. If a higher degree of hardness and pressure class distribution CZT is to PN16, it is possible to use a connection mixing pump to decrease the input of heating water to the heat exchanger of KL – HN series. Reduction of input water temperature of district heat system reduces the intensity of clogging and extends the life of heat exchanger. We also recommend hot water solved in combination with buffer storage tank or to align the output temperature in district heating systems.



FUNCTIONAL DESCRIPTION

The primary heat transfer fluid enters the station through the isolating valve and strainer. Furthermore, through the control valves are divided into plate heat exchanger - UT and exchanger - TV. Control valves provide heating temperature control and regulation of UT at a constant temperature of TV. The primary heating medium passes in plate heat exchangers and secondary side through ultrasonic heat meter, pressure regulator and shut-off valve goes back to district heating network - DH. In the secondary heat exchanger UT heating water is heated to the desired temperature over (80°C) a shut-off valve performs the forwarding station. Secondary hot water circulation ensures electronically controlled circulator. UT system is protected against illicittion pressure relief valve mounted in the premium location for heat. Adding water to the secondary heating system is designed from the primary return pipe through the valve assembly, including measuring up volume, which is realized by a mechanical flow meter. The expansion of secondary heating water is captured in the expansion tank with a bag.  TV is prepared by heating and circulating cold water. Circuslace TV enters the headend through the isolating valve, strainer, circulation pump and check valve. Cold water enters the headend through the isolating valve, strainer, check valve and water meter. Before entering the heated medium to the heat exchanger is fitted with a fuseing valve. In exchanger TV cold water (mixed circular and cold water) is heated to the desired temperature of (55°C) and via the isolating valve is driven in a stainless steel reservoir. To balance the hot water temperature setting and optimum performance values of the control valve is recommended mount stainless steel buffer tank

SPECIFICATIONS

  • Max. fluid temperature: 140°C
  • Max. medium pressure
  • Primary: 2.5 MPa
  • Max. power: 2000kW

 

STANDARD EQUIPMENT STATION

  • Plate heat exchanger: SWEP, Alfa Laval
  • Control valves: LDM, Siemens
  • Taps: BROEN
  • Pumps: Grundfos, Wilo

DESIGN support construction consists of a steel frame welded from thin sections, presented in which it is firmly held their own machinery. Primary distribution pipe and pipe sections UT is steel class. 11, duct section TV is steel cl. 17th The station is designed and constructional solution, the minimized noise and vibration operation.

Station ControlStations can be mounted control technology to the extent of the customer's choice. Simple controllers provide fully autonomous operation of the stations, including the choice of several time programs, setting equitherm dependencies with limited communication with the dispatching center. Programmable controllers offer a wide range of compact control at substations. Well-chosen programs can be up to optimize operation of the stations. Programmable controllers allow two-way communication with the control center, traffic monitoring, reporting, emergency situations, etc.

STANDARD SERIES PERFORMANCE, DIMENSIONS ARE ONLY INDICATIVE | 120/65-80/60°C - Winter | 75/35-10/55°C - Summer

Pressure | Prim / UT / TV | PN25/6/10

Performance

Dimensions

The dimensions of the pipe (mm)

UT (kW)

TV (kW)

Length L(mm)

Height H(mm)

Width V(mm)

Prim tot

sek UT

prime TV

cirkul TV

HN – 50/140

50

140

1400

1800

500

32

25

25

25

HN – 90/230

90

230

1400

1800

500

40

32

32

25

HN – 120/310

120

310

1600

1800

500

50

40

40

32

HN – 190/510

190

510

1800

1900

650

65

50

50

40

HN – 340/840

340

840

1900

1900

650

80

65

65

50

HN – 470/840

470

840

2000

1900

700

80

80

65

50

HN – 810/840

810

840

2100

2100

750

80

100

65

50

DIAGRAM diagram and used components can be replaced by the customer. Stations are supplied without pipe insulation that can be reordered, possibly in the plating compact. For the less accessible places it is possible to produce an atypical involvement and adapt best compact a defined space. Overall design of substations, including drawings, it is always consulted with the chief engineer and the client.




P – primar

U - Central heating

T - Domestic hot water

S – cold water

C – circulation

D – Topping

N – Charging of TV

-1 – Heat medium

-2 – Cold medium

0 - Plate heat exchanger

1 - Shut-off valves

2 – Filters

3 – Calorimeter

4 – Barometer

5 – Thermomanometer

6 –Pump

7 – Regulating valve

8 - Check valves

9 - Check valves

10 – Safety valve

11 - Heat Meter

12 - Water-gauge

13 - Flow Controllers

14 - Vent valve cars.

15 - Drain valve

16 - Regulator diferential pressure

17 – Water line

18 - Misc

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