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Gas treatment method and system based on three-device refrigerant compression cycle

A gas treatment and refrigerant technology, applied in the field of functional systems, can solve problems such as easy condensation and high energy consumption, and achieve the effects of ensuring heating effects, improving system energy efficiency, and improving air quality

Active Publication Date: 2021-08-06
湖南雅立科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] For refrigeration, at present, the temperature of the supply air cooled by the air conditioner evaporator is saturated air, which is prone to condensation, and some precision air conditioners use reheating to control the relative humidity of the supply air, but they often use electric heating, which consumes less energy. Big

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  • Gas treatment method and system based on three-device refrigerant compression cycle
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  • Gas treatment method and system based on three-device refrigerant compression cycle

Examples

Experimental program
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Effect test

Embodiment 1

[0061] When the outdoor temperature is 0°C and the indoor air temperature is 20°C, the 100 system of the present invention (such as Figure 10 As shown) when heating indoor air (the compressor is Danfoss VZH035CJ, R410A, the evaporation temperature of the evaporator is -10°C, and the condensation temperature of the condenser is 45°C), the overall performance of the system is as follows:

[0062] 1. Total system heating, 19.8kW (10+5+2.4+2.4),

[0063] 2. Conventional system heating 15kW (10+5), of which, cooling 10kW, power consumption 5kW

[0064] 3. Add 2.4kW refrigeration for subcooling

[0065] 4. Add 2.4kW heating for subcooling

[0066] 5. Power consumption, 5kW

[0067] 6. COP, 3.96

[0068] Using conventional systems such as Figure 11 shown), when heating the indoor air (the compressor is Danfoss VZH044CJ, R410A, the evaporation temperature of the evaporator is -10°C, and the condensation temperature of the condenser is 45°C), the overall performance of the syste...

Embodiment 2

[0082] When the outdoor air is -10°C, adopt the 100 system of the present invention (such as Figure 10 As shown) when the fresh air is heated (the compressor is Danfoss VZH028CH, R410A, the evaporation temperature of the evaporator is -20°C, and the condensation temperature of the condenser is 45°C), the overall performance of the system is as follows:

[0083] 1. Heating, 14.8kW (5+3.8+3+3),

[0084] 2. Conventional system heating 8.8kW (5+3.8), cooling 5kW, power consumption 3.8kW

[0085] 3. Add 3kW refrigeration for subcooling

[0086] 4. Add 3kW heating for subcooling

[0087] 5. Power consumption, 3.8kW

[0088] 6. COP, 3.9

[0089] Using conventional systems such as Figure 13 shown), when heating the indoor air (the compressor is Danfoss DCJ106T2, R410A, the evaporation temperature of the evaporator is -20°C, and the condensation temperature of the condenser is 45°C), the overall performance of the system is as follows:

[0090] 1. Heating, 15.43kW

[0091] 2. ...

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Abstract

The invention provides a gas treatment method and system based on a three-device refrigerant cycle. The system comprises a first gas heat exchanger, a second gas heat exchanger, an outdoor air heat exchanger, a compressor, a throttling mechanism, a four-way valve and the like. Gas treatment comprises heating, refrigerating and dehumidifying, during heating, gas sequentially passes through the first gas heat exchanger and the second gas heat exchanger to be heated with a refrigerant to achieve heating, refrigerant cycle during heating comprises a first heating cycle and a second heating cycle, and defrosting of an evaporator can be achieved while heating is conducted through switching of a four-way valve. During refrigeration, gas sequentially passes through the first gas heat exchanger and the second gas heat exchanger and is cooled with a refrigerant to realize refrigeration. During dehumidification, gas is firstly refrigerated and dehumidified with the first gas heat exchanger, and then is heated by the second gas heat exchanger to reduce relative humidity. According to the method and the system, the energy efficiency of the system can be improved, the heating effect is guaranteed, the system supplies heat uninterruptedly, and the system can be used for various air conditioner heat pump dehumidification systems including various occasions such as commercial occasions, civil occasions and industrial occasions.

Description

technical field [0001] The invention relates to a system which utilizes the refrigerant compression cycle of three heat exchangers to realize the functions of gas heating, cooling and dehumidification. Background technique [0002] A conventional refrigerant compression cycle contains only two units, evaporator and condenser, and four processes, evaporation, compression, condensation and expansion. [0003] The process from evaporation to compression is reasonable. The low-temperature gas produced by evaporation is very suitable for being directly compressed into the compressor, because the compression power consumption of low-temperature cold gas is lower than that of high-temperature gas, but the process from condensation to expansion is unreasonable. Because the condensed refrigerant hot liquid also contains a lot of sensible heat, for refrigeration, the direct expansion and decompression of the hot fluid will offset the cooling capacity of the evaporator. [0004] For h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B41/26F25B47/02
CPCF25B13/00F25B47/025
Inventor 袁一军叶立英
Owner 湖南雅立科技开发有限公司
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