Research and Production Enterprise

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Recirculating cooling plants (RCP) and air-cooling units (ACU)

Design of RCP:

  • air-cooling units;

  • separator;

  • case;

  • panel insulation;

  • confuser;

  • fan.

RCP are referred to the 2nd, 3rd and 4th safety class 2,3,4 seismic category - I or II according to NP-031-01.

APPOINTMENT ACU:

  • for the penetration of the cooling air in the lower part of the housing and the air valve chamber emergency cooling pipes located in the zone of the controlled access building of NPP;
  • to cool the indoor air of EFP located in the area of free mode, in emergency mode when the decompression of the primary circuit, or during checks of the equipment;
  • for air cooling of the emergency core cooling system rooms during the operation of the equipment in emergency mode when the decompression of the primary circuit, or during checks of the equipment.

Reliability targets:

Name

Value

Assigned lifetime of constructions, years

60

Assigned resourse to overhaul, h

100 000

Average operating time to the failure, h (no more than)

20 000

Average operating recovery time, h (no more than)

24

Period of continuous operation without maintenance, h (no more than)

10 000

Modification list:

Type

Specifications

Weight, kg

RCP-1

1000 m3/h
Q=1,5 kW

370

RCP-1,5 

1500 m3/h
Q=2,5 kW

510

RCP-22000 m3/h
Q=5 kW
540
 2000 m3/h
Q=3 kW
290
RCP-2,22200 m3/h
Q=3,5 kW
520
RCP-2,42400 m3/h
Q=4,0 kW
520
RCP-3,53500 m3/h
Q=6,0 kW
690
RCP-4

4000 m3/h
Q=10,0 kW
610
4000 m3/h
Q=10,0 kW
590
4000 m3/h
Q=10,0 kW
590
RCP-4,54500 m3/h
Q=16,0 kW
470
4500 m3/h
Q=25,0 kW
914
RCP-6,356350 m3/h
Q=10,0 kW
650
RCP-77000 m3/h
Q=10,0 kW
700
RCP-88000 m3/h
Q=20,0 kW
880
8000 m3/h
Q=20,5 kW
1000
RCP-1212000 m3/h
Q=30,0 kW
1300
12000 m3/h
Q=28,5 kW
1300
RCP-1313000 m3/h
Q=35,0 kW
1400
RCP-1818000 m3/h
Q=50,0 kW
2250
RCP-2020000 m3/h
Q=500,0 kW
5100
20000 m3/h
Q=133,0 kW
3300
RCP-2323000 m3/h
Q=61,0 kW
2550
RCP-37,537500 m3/h
Q=200,0 kW
6100
RCP-8080000 m3/h
Q=780,0 kW
11600

 

 

       

 

Design of Air-cooling units (ACU):

  • air-cooling units;

  • separator;

  • case;

  • panel insulation;

  • confuser.

ACU are referred to the 2nd, 3rd and 4th safety class 2,3,4 seismic category - I or II according to NP-031-01.

APPOINTMENT ACU:

  • for performing functions on normal operation and safety of the NPP, focused on creating and maintaining conditions for operability assurance of technological systems and elements;
  • for normal operation and safety, taking into account the impact of climate and radiation factors of the environment resulting from the possible modes of plant operation and external mechanical factors of natural and anthropogenic origin (earthquake, air-blast, aircraft crash, etc.)

Reliability targets:

Name

Value

Nominal productivity of unit, cbm / h

38 000

Nominal temperature of inlet air, °С

110

Cooling productivity of unit cooler in par performance, kW(no less)

700
Temperature of technical water inlet to the air cooler:
- Nominal, °С
- Operating range, °С
33
5-330