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Suction Line Accumulators (FA)
The task of a refrigeration compressor is to draw refrigerant vapour from the evaporator and compress it to a state where it can easily be condensed into subcooled liquid. Depending on the operating conditions, situations can occur, when small amounts of liquid are carried-over from the evaporator and into the compressor. The consequence of this being liquidhammer which will damage the compressor in the following components:
ESK suction line accumulators incorporate the injection principle which has been tried and tested for many years. Even if the accumulator is full of liquid refrigerant, it is not possible for liquid to enter the compressor suction.
In particular in compact plant with short suction lines, too low a suction superheat (below 7 K) will result in a loss of compressor oil pressure and a subsequent decrease in system capacity through displacement of oil by liquid refrigerant. ESK suction line accumulators protect the compressor against liquid hammer and its subsequent damage. The use of a suction line accu mulator is strongly recommended under the following conditions:
Parallel connected compressors
Container cooling
Transport refrigeration
Flooded evaporators
Two-stage plant
Reverse cycle operation
Use of hot-gas defrost
Superheat less 7 K
Heat pump systems
- Suction valve
- Discharge valves
- Pistons and connecting rods
- Gasket
- Bearings
ESK suction line accumulators incorporate the injection principle which has been tried and tested for many years. Even if the accumulator is full of liquid refrigerant, it is not possible for liquid to enter the compressor suction.
In particular in compact plant with short suction lines, too low a suction superheat (below 7 K) will result in a loss of compressor oil pressure and a subsequent decrease in system capacity through displacement of oil by liquid refrigerant. ESK suction line accumulators protect the compressor against liquid hammer and its subsequent damage. The use of a suction line accu mulator is strongly recommended under the following conditions:
For detailed information,
please refer to the following documents:
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