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Low temperature resistant fuel gas heat pump air-conditioning system combiningwaste heat recovery mode and liquid dehumidification mode

A technology of solution dehumidification and waste heat recovery, which is applied in air conditioning systems, machines using waste heat, heating and refrigeration combinations, etc., can solve the problems of low grade of gas engine exhaust energy and difficulty in recovery, so as to prevent frosting, improve adaptability, The effect of increasing the COP value

Inactive Publication Date: 2014-07-30
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (2) The problem of low temperature frosting in the air conditioning system in winter
[0010] At present, the energy grade of gas engine exhaust in the existing gas heat pump air conditioning system is relatively low, and it is difficult to recover

Method used

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  • Low temperature resistant fuel gas heat pump air-conditioning system combiningwaste heat recovery mode and liquid dehumidification mode
  • Low temperature resistant fuel gas heat pump air-conditioning system combiningwaste heat recovery mode and liquid dehumidification mode
  • Low temperature resistant fuel gas heat pump air-conditioning system combiningwaste heat recovery mode and liquid dehumidification mode

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Embodiment Construction

[0020] Such as figure 1 As shown, the system is mainly composed of gas engine 1, compressor 2, hot water waste heat recovery device 3, four-way reversing valve 4, heat exchanger 5, throttle valve 6, heat exchanger 7, liquid storage tank 8, solution Heat exchanger 9, preprocessor 10, dehumidifier 11, fan coil unit 12, oil separator 13, cooling water pump 14, first stop valve 15, second stop valve 16, third stop valve 17, fourth stop valve 18. Water pump 19 and solution pump 20 form.

[0021] Under the cooling condition in summer, the inlet port A of the four-way reversing valve 4 is connected to the third outlet port D, the first outlet port C is connected to the second outlet port B, valve 16, valve 17, valve 21, and valve 22 are opened, and valve 15, Valve 18 is closed. In summer conditions, the heat exchanger 5 is an evaporator, and the heat exchanger 7 is an evaporative condenser.

[0022] The whole system in summer can be divided into refrigerant cycle, chilled water cy...

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Abstract

The invention discloses a low temperature resistant fuel gas heat pump air-conditioning system combining awaste heat recovery mode and a liquid dehumidification mode. The system mainly comprises a gas engine (1), a compressor (2), a hot water waste heat recovery device (3), a four-way reversing valve (4), a heat exchanger (5), a throttling valve (6), a heat exchanger (7), a liquid storage tank (8), a solution heat exchanger (9), a preprocessor (10), a dehumidifier (11), a fan coil (12), an oil separator (13), a cooling water circulating pump (14), a chilled water circulating pump (19), a solution pump (20) and a heat insulation plate (23), which form four subsystems, namely a refrigerant system, a chilled water system, a cooling water system and a liquid dehumidification system, and the flow direction and the flow rate of a medium are regulated through valves; in summer, a dilute solution is heated by enginewasteheat and condensation heat to concentrate, so as to form a temperature and humidity independently controlled dehumidification link; in winter, the enginewasteheat is used for improving the temperature of an evaporator heat transferring medium, so as to improve the machine set COP (Coefficient Of Performance). According to the low temperature resistant fuel gas heat pump air-conditioning system, the gas engine waste heat can be used effectively, the energy consumption in operation is reduced, and the adaptability of the system tothe low-temperature environment is enhanced.

Description

technical field [0001] The invention relates to a temperature and humidity independent control technology for solution dehumidification and a gas heat pump air conditioner waste heat recovery technology. Background technique [0002] According to the survey, building energy consumption has accounted for about one-third of the total energy consumption in our country. Among them, the energy consumption of the air conditioning system accounts for about 70% of the level. Therefore, reducing the energy consumption of building air-conditioning systems is of great significance to my country's economic and social development and technical goals. [0003] (1) Temperature and humidity independent control air conditioning system based on solution dehumidification method [0004] At present, air-conditioning systems generally use condensation dehumidification to cool down and dehumidify the air, and remove the sensible heat load and latent heat load (humidity load) of the building at ...

Claims

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Application Information

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IPC IPC(8): F24F5/00F25B27/02F25B29/00F25B47/00
CPCY02A30/274
Inventor 卢军黄凯霖李坷桐杨飞徐政宇
Owner CHONGQING UNIV
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