An integrated air-conditioning unit applied to a subway station and its control method

Abstract

The invention discloses an integrated air conditioning unit applied to a subway station and a control method thereof. The air conditioning unit adopts an integrated structure and is divided into an upper layer and a lower layer, wherein an air supplying chamber is arranged on the upper layer of the air conditioning unit and comprises a new return air mixing section, a primary efficiency filter section, an electronic dust removal filtering section, a direct expansion evaporation section and an air supplying section; an air exhaust chamber is arranged on the lower layer of the air conditioning unit and comprises a new return air mixing section, a primary efficiency filter section, a direct evaporation condensing section, a compressor section and an air exhaust section; the direct evaporation condensing section of the air exhaust chamber is fixedly provided with an evaporation condenser with a spraying system; condensing water separated from the air supplying chamber enters the spraying system through a pipeline, is sprayed on the evaporation condenser and exchanges heat with a refrigerant in the evaporation condenser. The integrated air conditioning unit adopts an integrated structure, the condensing water of the evaporation evaporator is treated properly, the construction investment is reduced, the project price is reduced, and the air conditioning unit has the advantages of high efficiency, energy conservation and easiness in maintenance.

Description

technical field [0001] The invention relates to the field of air-conditioning equipment applied to subway stations and underground spaces, in particular to an integrated air-conditioning unit applied to subway stations and a control method thereof. Background technique [0002] The combination of "cooling tower + chiller + terminal equipment" of the air conditioning unit in the traditional subway equipment room, because water is used as the intermediate refrigerant, the chilled water is generated by the chiller, and the chilled water is transported to the air conditioner terminal equipment through the chilled water pump. It is used to deal with the residual heat and humidity in the room, so that the temperature and humidity of the indoor air can meet the requirements of use, such as in the Chinese document "Discussion on the Air Conditioning System of Subway Station Equipment Management Room" (written by Sun Zhaojun, see "Railway Standard Design" No. 6, 2004) Several air-con...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an integrated air-conditioning unit and its control method applied to subway stations, aiming to solve the problems of low heat exchange efficiency, high energy consumption in operation, and inability to properly handle condensed water of the air-conditioning unit in subway stations. Problems such as land occupation, noise and drift caused by cooling towers

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