Solution dehumidification fresh air treatment system based on dehumidification-evaporative cooling closed circulation

Abstract

The invention discloses a solution dehumidification fresh air treatment system based on dehumidification-evaporative cooling closed circulation. The solution dehumidification fresh air treatment system comprises a LiCl solution circulation loop, a chilled water circulation loop, an air circulation loop, a first-stage cooling water circulation loop and a second-stage cooling water circulation loop, and cooling towers, a regenerator, dehumidifiers, an evaporator, a surface air cooler, water-solution heat exchangers, fans, various circulating pumps and regulating valves are arranged in the system. According to the solution dehumidification fresh air treatment system, outdoor air with relatively high temperature passes through cooling water with relatively high temperature prepared by the first-stage cooling tower to cool a solution at an inlet of the first dehumidifier, and then outdoor fresh air is dehumidified; and indoor exhaust air with relatively low temperature and humidity passes through cooling water with relatively low temperature prepared by the second-stage cooling tower to cool a solution at an inlet of the second dehumidifier, low-temperature and low-humidity air obtained by the second dehumidifier enters the evaporator to prepare chilled water, then the chilled water is conveyed into the surface air cooler to cool dehumidified fresh air. and therefore efficient fresh air treatment capable of meeting the temperature and humidity requirements at the same time can be realized.

Description

technical field [0001] The invention belongs to the technical field of design and manufacture of refrigeration and air-conditioning systems, in particular to a solution dehumidification fresh air treatment system based on a dehumidification-evaporative cooling closed cycle. Background technique [0002] With the rapid development of science and technology and the increasing diversification of building functions, while meeting people's requirements for indoor environment comfort, energy shortage can no longer be ignored, and energy conservation has attracted worldwide attention. In my country, building energy consumption currently accounts for a large part of the total energy consumption of the national economy, and it is showing an increasing trend. Building energy conservation mainly includes two aspects: on the one hand, improving the thermal insulation performance of the building envelope and reducing the heat loss of the building envelope; on the other hand, improving th...

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Problems solved by technology

[0003] Aiming at the above-mentioned prior art, the technical problem to be solved by the present invention is to reduce the demand for energy taste of the traditional temperature and humidity independent control system and reduce the waste of energy, and at the same time, the low-temperature cold source is easy to obtain

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