Subway station ventilation and air conditioning environmental-control system

Abstract

The invention relates to the technical field of subway stations and air conditioning for underground space, and particularly discloses a subway station ventilation and air conditioning environmental-control system. The ventilation and air conditioning environmental-control system comprises heat-dissipating devices, air conditioning units and compressor units, wherein the heat-dissipating devices, the air conditioning units and the compressor units are combined through a pipeline to form a refrigerant circulation loop; the heat-dissipating devices are arranged at entrances-exits of a subway station; the air conditioning units are arranged in the inner space of the subway station. The ventilation and air conditioning environmental-control system disclosed by the invention has the advantages that fresh air is supplemented through the entrances-exits; the heat-dissipating devices are mounted at the entrances-exits, so that the heat-humidity loads of all large and small systems in the subway station can be discharged from the inner space of the subway station to the outside air, and the circumstance that in a conventional subway station ventilation and air conditioning environmental-control system, a tooling tower needs to be arranged for heat dissipating can be avoided; and the air conditioning units and the compressor units are arranged in the inner space of the subway station, so that the inner space of the subway station can be cooled and dehumidified, and the comfort demand of people can be met.

Description

technical field [0001] The invention relates to the technical field of air-conditioning in subway stations and underground spaces, in particular to a ventilation and air-conditioning environment control system for subway stations. Background technique [0002] The subway is a long and narrow underground building. It is basically isolated from the outside world except for the entrances and exits of each station, the air supply and exhaust outlets are connected with the outside world. During the operation of the subway, a large amount of heat will be brought into the station. The stratum has the function of heat storage. As the operation time increases, the temperature inside the subway system will increase year by year, and the dense flow of people will make the air turbid. It is precisely because of these characteristics of the subway that the subway needs an environmental control system to ensure that there is a suitable temperature and humidity in the subway and provide cer...

AI Technical Summary

Problems solved by technology

With the development of society and the progress of science and technology, the traditional subway ventilation and air conditioning system can no longer adapt to the coordinated development of subway construction and urban environment

[0003] Traditional subway station ventilation and air conditioning adopts the system of "water-cooled chiller + cooling tower + combined air conditioning unit". For example, the utility model patent with application number 201120222217.9 discloses a water-cooled direct evaporative air-conditioning system for urban rail transit, including a water-cooled compression condensing unit , direct evaporative combined air handling unit, cooling tower, cooling water circulation pump, cooling water circulating pipeline, blower, and other pipeline accessories, the water-cooled compression condensing unit and the direct evaporating combined air handling unit are connected through refrigerant pipes The system meets the requirements of air-conditioning engineering and daily operation and maintenance. The traditional system has the following disadvantages: First, the cooling tower occupies the ground and destroys the urban landscape and disturbs the residents. Most subway stations are built in prosperous areas with high urban population density. The installation of cooling towers on the ground in this area destroys the urban landscape and affects the daily life and rest of nearby residents; secondly, the water-cooled chillers in the traditional system need to occupy a special machine room outside the civil air duct of the subway station, which increases the amount of civil excavation Thirdly, the traditional "water-cooled chiller unit + cooling tower + combined air conditioner unit" needs to excavate new air ducts and exhaust ducts underground, and on the ground, fresh air pavilions and exhaust pavilions need to be used for ventilation and air conditioning. The exhaust system invested a lot of engineering and land occupation

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