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Air conditioning method combining solution absorbed moisture removing with compression refrigeration cycle

A technology of compression refrigeration and solution absorption, which is applied in air conditioning systems, heating methods, space heating and ventilation, etc., can solve the problems of air dehumidification and refrigeration not being realized in one step at the same time, and large external energy consumption, so as to avoid high energy consumption processing methods , Large air dehumidification and energy saving effect

Inactive Publication Date: 2007-09-12
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The external energy consumption is relatively large. In addition, as an independent dehumidification system, the dehumidification and cooling of the air cannot be realized in one step at the same time.

Method used

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  • Air conditioning method combining solution absorbed moisture removing with compression refrigeration cycle
  • Air conditioning method combining solution absorbed moisture removing with compression refrigeration cycle

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Embodiment

[0016] Embodiment: this embodiment is based on 40000m 3 / h of air handling capacity, compare the operating performance of the existing circulation method shown in Figure 2 and the circulation process method of the present invention shown in Figure 1, the existing circulation adopts lithium chloride solution as the dehumidification solution working medium of the solution absorption dehumidification cycle , the required absorption cooling capacity is provided by the compression refrigeration cycle with R134a as the refrigerant, and the required heat is exclusively supplied from the outside. The present invention uses the mixture of refrigerant R134a and refrigerant R141b as the refrigerant of the compression refrigeration cycle, wherein the mole fraction of R134a is 0.82, the comparison is as follows:

[0017] The parameters of each state point of the air passing through the system are shown in Table 1. Among them, state point 1a is the mixed wind of fresh air and circulating a...

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Abstract

The invention relates to an air condition method which compounds the desiccation by solution absorb and compressing refrigeration loop. The desiccation loop includes the desiccation loop part and the recovering loop part. The refrigerating evaporator of the compressing refrigeration loop provides the cold quantity needed by the absorbing cooler of the desiccation loop, at the same time, the liquid refrigerating medium of low temperature vapors after absorbing the solution thermal; the much higher temperature of the gas refrigerant is leaded into the condenser which provides the thermal for the heater of the recovering loop. Because the thermal of the absorber cool load is as the thermal load of the recover, the thermal load of the system recover can be decreased; even it can be saved completely. The evaporating temperature can be improved greatly and the energy cost can be lowered. So the cost can be decreased more.

Description

technical field [0001] The invention relates to an air conditioning method combined with a solution absorption dehumidification cycle and a compression refrigeration cycle, which is especially suitable for low humidity (high dehumidification) and low temperature (high cooling) air conditioning working conditions. Background technique [0002] In the conventional compression refrigeration air-conditioning method, the air passing through the coil is cooled to below the dew point of the air to reach the humidity that needs to be controlled by the air supply, and then the air is heated to the temperature of the air supply. When the dew point of the treated air outlet is below 0°C, the condensed water will freeze on the surface of the coil and block the gap between the coil and the tube fins, so that the equipment cannot be in working condition and dehumidification is difficult to carry out. Therefore, conventional compression refrigeration is difficult to meet the processing req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/14
Inventor 郑丹星唐家伟金红光
Owner BEIJING UNIV OF CHEM TECH
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