Hollow fiber film solution composite condensation dehumidification central ventilation system

Abstract

The invention provides a hollow fiber film solution composite condensation dehumidification central ventilation system. The system comprises a fresh air processing module and a returned air processingmodule, and hollow fiber film pipes and refrigerant pipes are across arranged in the two; the hollow fiber film pipes of the fresh air processing module and the returned air processing module communicate to form a dehumidification solution circulating pipeline; and the refrigerant pipes communicate to form a refrigerant circulating pipeline. Compared with the prior art, the fresh air wet load treatment adopts a solution dehumidification and condensation dehumidification compound mode to achieve more obvious dehumidification effect; dehumidification solution and air are not directly contactedwith other heat exchange equipment to prevent the problems of dripping of the dehumidification solution in air supply and equipment corrosion; and the whole system is low in cost, long in service lifeand prominent in energy saving effect.

Description

technical field [0001] The invention relates to a dehumidification fresh air system, in particular to a hollow fiber membrane solution compound condensation dehumidification fresh air system. Background technique [0002] With the improvement of people's requirements for office, life and living comfort, the fresh air system is more and more widely used in the building air conditioning system. Under the premise that the conventional air-conditioning system bears most of the apparent load in the building, the main task of the fresh air system is to deal with the fresh air and the indoor latent heat load. The air humidity in the building environment has an extremely important impact on people's comfort experience and health, especially in summer and the rainy season, when the hot and humid environment brings great troubles to people's lives, so the air sent into the room is carried out. Dehumidification is necessary; on the other hand, for public buildings such as libraries, a...

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Problems solved by technology

[0005] Although the solution dehumidification unit has obvious advantages, two problems in its operation still need to be solved

First of all, in the solution dehumidification fresh air unit, the air and the dehumidification solution are in direct contact, which will cause tiny droplets of the dehumidification solution to be entrained in the air supply, which will affect the quality of the air sent into the room; secondly, the current solution dehumidification unit usually The calcium chloride, lithium chloride and lithium bromide solutions used are all highly corrosive to metals. When the dehumidification solution in the unit comes into contact with the heat exchange equipment, it will cause corrosion of pipes and various wall surfaces, which will greatly reduce The stability and service life of the unit operation

Two Chinese invention patent applications with publication numbers CN101975421A and CN106979573A respectively disclose two heat pump-driven solution dehumidification air-conditioning systems. Both systems use membrane dehumidification components to solve the problems caused by the direct contact between the solution and the air. However, their common defect is that the dehumidification solution still needs to use additional heat exchange equipment for cooling and heating, so the corrosion problem of the equipment has not been solved, so the system still needs to be improved

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