Hot-gas ice-shedding refrigeration system of two-plate ice plate machine
A refrigeration system and plate ice technology, which is applied in the field of hot gas deicing refrigeration system of two sets of plate ice machines, can solve the problems of low suction pressure of refrigeration compressors and low cooling effect, so as to increase pressure, ensure stability, improve The effect of cooling efficiency
Inactive Publication Date: 2013-07-24
中机西南能源科技有限公司
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Problems solved by technology
[0003] In view of this, the present invention provides a two-group plate ice machine hot gas deicing refrigeration system to solve the problem of low suction pressure of the refrigeration compressor and low refrigeration effect in the existing refrigeration system
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[0018] For reference and clarity, the reference numbers in the drawings are explained as follows:
[0019] 1. Refrigeration compressor, 2. High-efficiency oil separator, 3. Water-cooled condenser, 4. Liquid supply filter, 5. Hydraulic pressure differential solenoid valve, 6. Tail injection solenoid valve, 7. Gas-liquid separator with heat exchange , 8. The first liquid supply solenoid valve, 9. The first thermal expansion valve, 10. The first liquid separator and capillary tube, 11. The first plate ice plate heat exchanger, 12. The first short circulation pipe, 13. The first return air solenoid valve, 14, the first return air hot gas solenoid valve, 15, the first liquid supply hot gas solenoid valve, 16, the first one-way valve, 17, the second liquid supply solenoid valve, 18, the second thermal expansion Valve, 19, the second liquid separator and capillary tube, 20, the second plate ice plate heat exchanger, 21, the second return air solenoid valve, 22, the second return air ...
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The invention discloses a hot-gas ice-shedding refrigeration system of a two-plate ice plate machine, comprising a first thermostatic expansion valve, a first liquid supply solenoid valve, a second thermostatic expansion valve, a second liquid supply solenoid valve, a first check valve, a second check valve, a bypass solenoid valve and a pressure solenoid valve. The first thermostatic expansion valve and the first liquid supply solenoid valve are connected in series with a first dispenser and a capillary tube at an inlet end of a first-plate ice plate sheet heat exchanger; the second thermostatic expansion valve and the second liquid supply solenoid valve are connected in series with a second dispenser and a capillary tube at an inlet end of a second-plate ice plate sheet heat exchanger; the first check valve is connected between an outlet of the first thermostatic expansion valve and an outlet of the second liquid supply solenoid valve; the second check valve is connected between an outlet of the second thermostatic expansion valve and an outlet of the first liquid supply solenoid valve; and the bypass solenoid valve and the pressure solenoid valve are orderly connected in seriesbetween third liquid supply hot-gas solenoid valves with air inlets of heat exchange gas-liquid separators and outlets of efficient oil separators of the hot-gas ice-shedding refrigeration system of the two-plate ice plate machine. The invention solves the problems of low suction pressure of a refrigeration compressor and low refrigeration effect in a traditional refrigeration system, simultaneously improves the refrigeration efficiency and has good energy saving property.
Description
technical field [0001] The invention relates to the technical field of refrigeration, in particular to a two-group plate ice machine hot gas deicing refrigeration system. Background technique [0002] At present, the existing two sets of hot gas deicing refrigeration systems for plate ice machines are divided into the ice making stage and the deicing stage. During the process, the high-temperature and high-pressure refrigerant gas passes through the plate ice plate heat exchanger and undergoes deicing, and becomes a low-temperature and low-pressure refrigerant gas, which returns to the gas-liquid separator with heat exchange through the short circulation tube, and returns to the The pressure of the refrigerant gas entering the gas-liquid separator with heat exchange is very low, because the refrigerant gas enters the refrigeration compressor from the gas-liquid separator with heat exchange for compression, because the refrigerant in the gas-liquid separator with heat exchang...
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IPC IPC(8): F25C1/12
CPCY02P60/85
Inventor 刘楷周国均
Owner 中机西南能源科技有限公司