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CN-224215550-U - Water-cooling condensation reheating unit machine

CN224215550UCN 224215550 UCN224215550 UCN 224215550UCN-224215550-U

Abstract

The utility model belongs to the technical field of refrigeration air conditioners, and particularly relates to a water-cooling condensation reheating unit machine which comprises a compressor, a first heat exchanger, a second heat exchanger, an expansion valve and a third heat exchanger, wherein an outlet of the compressor is communicated with a first end of the first heat exchanger and a first end of the second heat exchanger, a second end of the first heat exchanger and a second end of the second heat exchanger are communicated with a first end of the expansion valve, a second end of the expansion valve is communicated with a first end of the third heat exchanger, a second end of the third heat exchanger is communicated with an inlet of the compressor, a water-cooling condenser is adopted to replace an air-cooling condenser in a common constant temperature and humidity air conditioner, the water-cooling condenser can be integrated in a unit without a special machine room, occupied area is saved, a connecting pipeline outside the unit is fewer, only a water outlet pipe and a water inlet pipe of the residual water-cooling condenser are used, the pipeline installation work is simplified, and the difficulty of subsequent maintenance and overhaul is reduced.

Inventors

  • Jin Weikan
  • WANG DAI
  • WANG XIAODONG
  • DUAN HONGYAN
  • JIN FEI

Assignees

  • 浙江思科制冷股份有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (9)

  1. 1. The water-cooling condensing reheating unit machine is characterized by comprising a compressor (1), a first heat exchanger (5), a second heat exchanger (6), an expansion valve (10) and a third heat exchanger (12), wherein the outlet of the compressor (1) is communicated with the first end of the first heat exchanger (5) and the first end of the second heat exchanger (6), the second end of the first heat exchanger (5) and the second end of the second heat exchanger (6) are communicated with the first end of the expansion valve (10), the second end of the expansion valve (10) is communicated with the first end of the third heat exchanger (12), and the second end of the third heat exchanger (12) is communicated with the inlet of the compressor (1).
  2. 2. The water-cooling condensing reheating unit machine according to claim 1, wherein an oil separator (3) and a three-way valve (4) are sequentially arranged between pipelines of the compressor (1) and the first heat exchanger (5) and the second heat exchanger (6), a liquid storage device (8) and a drying filter (9) are sequentially arranged between pipelines of the first heat exchanger (5) and the expansion valve (10), a one-way valve (7), the liquid storage device (8) and the drying filter (9) are sequentially arranged between the second heat exchanger (6) and the expansion valve (10), a liquid separator (11) is arranged between the expansion valve (10) and the third heat exchanger (12), and a copper filter (13) and a gas-liquid separator (2) are sequentially arranged between pipelines of the third heat exchanger (12) and the compressor (1).
  3. 3. The water-cooling condensing reheating unit machine according to claim 2, wherein the three-way valve (4) is a three-way electric ball valve, and the flow rate of the refrigerant in the first heat exchanger (5) and the second heat exchanger (6) during operation is controlled by adjusting the opening degree.
  4. 4. The water-cooled condensing reheat unit machine of claim 1, wherein the compressor (1) is a variable frequency compressor.
  5. 5. The water-cooled condensing reheat unit machine of claim 1, wherein the expansion valve (10) is an electronic expansion valve.
  6. 6. The water-cooled condensing reheat unit machine of claim 1, wherein the first heat exchanger (5) is a double pipe heat exchanger.
  7. 7. The water-cooled condensing reheat unit machine of claim 1, wherein the second heat exchanger (6) and the third heat exchanger (12) are fin-tube heat exchangers or microchannel heat exchangers.
  8. 8. The water-cooled condensing and reheating unit machine according to claim 2, wherein after flowing out from an outlet of the compressor (1), refrigerant sequentially passes through the oil separator (3), the three-way valve (4), the first heat exchanger (5), the liquid storage device (8), the drying filter (9), the expansion valve (10), the liquid separator (11), the third heat exchanger (12), the copper filter (13) and the gas-liquid separator (2) and then flows back to the compressor (1) to form a first compression refrigeration cycle.
  9. 9. The water-cooled condensing and reheating unit machine according to claim 2, wherein after flowing out from an outlet of a compressor (1), refrigerant sequentially passes through the oil separator (3), the three-way valve (4), the second heat exchanger (6), the one-way valve (7), the liquid storage device (8), the drying filter (9), the expansion valve (10), the liquid separator (11), the third heat exchanger (12), the copper filter (13) and the gas-liquid separator (2) and then flows back to the compressor (1) to form a second compression refrigeration cycle.

Description

Water-cooling condensation reheating unit machine Technical Field The utility model relates to the technical field of refrigeration air conditioners, in particular to a water-cooling condensation reheating unit machine. Background The constant temperature and humidity air conditioning technology is widely applied to scenes with high requirements on indoor environments, such as museums, pharmaceutical workshops, electronic factories and machine rooms, the common control method of the constant temperature and humidity air conditioner basically meets the humidity requirements, and the dehumidification mode usually adopts cooling dehumidification, so that dehumidified air is in a low-temperature and low-humidity state, and therefore the processed air is heated to the required temperature in an electric heating mode. The unit energy consumption is usually high in a mode of electric heating and reheating after cooling and dehumidification, so that the operation cost is too high, a constant temperature and constant humidity air conditioning system with condensation heat recovery is developed at present, and the purpose of reducing the air conditioning unit energy consumption is achieved by adopting a method of replacing electric heating and reheating with condensation heat. However, the energy consumption of the above mode is still at a higher level, and the above mode is realized by configuring the air conditioner external unit, so that the requirements on a machine room are higher, and compared with the common direct expansion type air conditioner pipeline, the internal and external unit connecting pipelines are more complex, and the conditions of difficult pipeline installation, difficult maintenance in the subsequent use process and the like can be caused. Disclosure of utility model The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a water-cooled condensing and reheating unit machine. The utility model realizes the above purpose through the following technical scheme: The utility model provides a water-cooling condensation reheat unit machine, includes compressor, first heat exchanger, second heat exchanger, expansion valve, third heat exchanger, the export of compressor all communicates with the first end of first heat exchanger and the first end of second heat exchanger, the second end of first heat exchanger and the second end of second heat exchanger all communicate with the first end of expansion valve, the second end of expansion valve communicates with the first end of third heat exchanger, the second end of third heat exchanger communicates with the import of compressor. Preferably, an oil separator and a three-way valve are sequentially arranged between the compressor and pipelines of the first heat exchanger and the second heat exchanger, a liquid storage device and a drying filter are sequentially arranged between the first heat exchanger and pipelines of the expansion valve, a one-way valve, the liquid storage device and the drying filter are sequentially arranged between the second heat exchanger and the expansion valve, a liquid separator is arranged between the expansion valve and the third heat exchanger, and a copper filter and a gas-liquid separator are sequentially arranged between the third heat exchanger and pipelines of the compressor. Preferably, the three-way valve is a three-way electric ball valve, and the flow of the refrigerant in the first heat exchanger and the second heat exchanger is controlled by adjusting the opening degree. Preferably, the compressor is a variable frequency compressor. Preferably, the expansion valve is an electronic expansion valve. Preferably, the first heat exchanger is a double pipe heat exchanger. Preferably, the second heat exchanger and the third heat exchanger adopt fin-tube heat exchangers or micro-channel heat exchangers. Preferably, after flowing out from the outlet of the compressor, the refrigerant flows back to the compressor to form a first compression refrigeration cycle after passing through the oil separator, the three-way valve, the first heat exchanger, the liquid storage device, the dry filter, the expansion valve, the liquid separator, the third heat exchanger, the copper filter and the gas-liquid separator in sequence. Preferably, after flowing out from the outlet of the compressor, the refrigerant flows back to the compressor to form a second compression refrigeration cycle after passing through the oil separator, the three-way valve, the second heat exchanger, the one-way valve, the liquid reservoir, the dry filter, the expansion valve, the liquid separator, the third heat exchanger, the copper filter and the gas-liquid separator in sequence. Compared with the prior art, the beneficial effects are as follows: 1. The water-cooled condenser is adopted to replace an air-cooled condenser in a common constant temperature and humidity air conditioner, the