Multistage hollow fiber membrane liquid dehumidifying device applicable to hot and humid area

A liquid dehumidification and fiber membrane technology, applied in the field of air dehumidification system, can solve the problems of low dehumidification efficiency, corrosion of metal heat exchangers, and decline of indoor air quality, so as to avoid pollution, reduce solution regeneration temperature, and high comprehensive energy utilization rate Effect

Active Publication Date: 2016-05-11
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned existing multi-stage liquid dehumidification technology and equipment, provide a multi-stage hollow fiber membrane liquid dehumidification device suitable for hot and humid areas, and use hollow fiber membrane modules to solve the existing technology through a multi-stage dehumidification regeneration process The problems of indoor air quality decline, corrosion of metal heat exchangers, and low dehumidification efficiency

Method used

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  • Multistage hollow fiber membrane liquid dehumidifying device applicable to hot and humid area
  • Multistage hollow fiber membrane liquid dehumidifying device applicable to hot and humid area

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Embodiment 1

[0032] Such as figure 1 As shown, a multi-stage hollow fiber membrane liquid dehumidification device suitable for hot and humid areas, including an air intake system for delivering air indoors, an exhaust system for exhausting air to the outside, a heat pump system, and a dehumidification solution circulation system,

[0033] The air intake system includes an air intake channel, a fresh air blower 1, a primary hollow fiber membrane dehumidification module 2, a primary hollow fiber membrane dehumidification module 4, a secondary hollow fiber Membrane dehumidification component 6;

[0034] The exhaust system includes an exhaust channel, an exhaust fan 13 sequentially arranged on the exhaust channel along the air discharge direction, a primary hollow fiber membrane regeneration module 16, and a secondary hollow fiber membrane regeneration module 18;

[0035] The heat pump system includes a compressor 9, an expansion valve 7, a refrigerant storage tank 8, a primary evaporator 3 a...

Embodiment 2

[0046] Such as figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the primary hollow fiber membrane dehumidification module 2 is eliminated between the fresh air blower 1 and the primary evaporator 3, that is, the outdoor air is directly sent into the first stage by the fresh air blower 1 The evaporator 3 is used for cooling. This embodiment is mainly used in areas where the humidity is not particularly high. For areas where the humidity is not particularly high, the primary hollow fiber membrane dehumidification module 2 is not needed. The effect of the multi-stage cooling first and then the liquid dehumidification method is better. Well, the structure is simpler, the cost is lower, and it can meet the dehumidification needs in areas where the humidity is not particularly high.

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Abstract

The invention discloses a multistage hollow fiber membrane liquid dehumidifying device applicable to a hot and humid area. The multistage hollow fiber membrane liquid dehumidifying device comprises an air inlet system used for conveying air into a room, an exhaust system used for exhausting the air out of the room, a heat pump system and a dehumidifying solution circulation system. The air inlet system comprises an air inlet channel, a fresh air fan and a plurality of hollow fiber membrane dehumidifying assemblies, wherein the fresh air fan and the hollow fiber membrane dehumidifying assemblies are sequentially arranged on the air inlet channel in the air intake direction. The exhaust system comprises an exhaust channel, an exhaust fan and a plurality of hollow fiber membrane regeneration assemblies, wherein the exhaust fan and the hollow fiber membrane regeneration assemblies are sequentially arranged on the exhaust channel in the air exhausting direction. The heat pump assembly comprises a compressor, an expansion valve, a refrigerant storage tank, a plurality of evaporators and a plurality of condensers. The multistage hollow fiber membrane liquid dehumidifying device avoids the gas and liquid entrainment phenomenon, has good mass transfer efficiency, solves the problem of corrosion of a dehumidifying saline solution to a metal heat exchanger by an existing method, reduces bacterium breeding, lowers the regeneration temperature of the solution and increases the energy utilization rate of a system.

Description

technical field [0001] The invention relates to an air dehumidification system, in particular to a multistage hollow fiber membrane liquid dehumidification device suitable for hot and humid areas. Background technique [0002] With the improvement of the living standard of Chinese residents, people pay more and more attention to the indoor air environment. The humidity of the air, like the temperature, also plays an important role in the comfort of the human body. Excessive humidity in summer hinders the body's heat dissipation and sweating, making people feel hot; excessive humidity in winter accelerates heat conduction, reduces the body's perceived temperature, and makes people feel cold. Therefore, controlling indoor air humidity is an important part of improving the indoor air environment. [0003] Due to the mature technology, the currently widely used humidity control method is freezing dehumidification, that is, the use of refrigerants to lower the humid air below t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/153
CPCF24F3/153
Inventor 张宁
Owner SOUTH CHINA UNIV OF TECH
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