Double-swirl evaporation and condensation type refrigerant direct expansion ventilation air conditioning system of subway station

A subway station, evaporative condensation technology, applied in air conditioning systems, ventilation systems, space heating and ventilation, etc., can solve the problems of increased civil engineering investment and construction difficulty, noise pollution, large land occupation, etc., and achieves good smoke exhaust ventilation. , Safe and reliable use, the effect of reducing the area of ​​the computer room

Inactive Publication Date: 2016-06-08
RAIL TRANSPORT ENERGY SAVING BEIJING ENG RES CENT CO LTD
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Problems solved by technology

[0004] (1) Cooling towers need to be installed on the ground, resulting in problems such as large land occupation, noise pollution, floating water, and poor landscape
[0005] (2) It is necessary t

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  • Double-swirl evaporation and condensation type refrigerant direct expansion ventilation air conditioning system of subway station
  • Double-swirl evaporation and condensation type refrigerant direct expansion ventilation air conditioning system of subway station

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Embodiment Construction

[0017] see figure 1 , figure 2 Shown: a double-rotating evaporative condensing refrigerant direct expansion ventilation and air-conditioning system in a subway station, which includes an exhaust duct 3, a fresh air duct 9, and a ventilation and air-conditioning machine room 11. Combined multi-page split angle adjustable heat exchanger 1, an openable refrigerant direct expansion heat exchanger 8 is arranged in the new air duct 9, and an openable refrigerant direct expansion air conditioning unit 10 is arranged in the ventilation and air conditioning machine room 11. The multi-page split angle adjustable heat exchanger 1 combined with water spray is connected to the openable refrigerant direct expansion heat exchanger 8 in the fresh air duct and the openable refrigerant direct expansion air conditioning unit 10 in the ventilation and air conditioning machine room 11. Refrigerant output pipe 5, the compressor 6 is connected to the refrigerant return pipe 7 of the multi-leaf hea...

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Abstract

The invention discloses a double-swirl evaporation and condensation type refrigerant direct expansion ventilation air conditioning system of a subway station. The system comprises an exhaust way, a fresh air way and a ventilation air conditioner machine room; a multi-page opposite opening-adjustable heat exchanger combined with water spraying is arranged in the exhaust way; an openable refrigerant direct expansion heat exchanger is arranged in the fresh air way; an openable refrigerant direct expansion air conditioning unit is arranged in the ventilation air conditioner machine room; refrigerant output pipes are connected between the multi-page opposite opening-adjustable heat exchanger and heat exchangers in the fresh air way and the ventilation air conditioner machine room; a compressor is connected to a refrigerant return pipe; and expansion valves are connected to the refrigerant output pipes. The system has the beneficial effects of simple structure, convenience for maintenance, good smoke discharge ventilation effect, reasonable structure, convenience for installation, high heat exchange efficiency through combination with water spraying, high heat exchange efficiency through refrigerant direct expansion, canceling of a ground cooling tower, reduction of refrigerant transportation energy consumption, reduction of station machine room area, freeze prevention in winter and safe and reliable use.

Description

technical field [0001] The invention relates to the technical field of large-scale air conditioners in subway underground stations, and relates to an air-conditioning system in the form of evaporation and condensation combined with direct expansion of refrigerants in subway underground stations combined with the characteristics of subways. Background technique [0002] At present, the air-conditioning system of traditional subway stations generally adopts cooling towers installed on the ground, and refrigerator rooms are installed in the stations. Water-cooled chillers, chilled water pumps, and cooling water pumps are installed in the refrigerator rooms. The terminal equipment of the air-conditioning system adopts the form of water-cooled heat exchangers. [0003] After years of operation, it is concluded that the traditional subway air conditioning system has the following problems: [0004] (1) Cooling towers need to be installed on the ground, resulting in problems such a...

Claims

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Application Information

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IPC IPC(8): F24F3/06F24F7/06F24F13/30
CPCF24F3/06F24F7/06F24F13/30
Inventor 李国庆孟鑫张领张晓伟
Owner RAIL TRANSPORT ENERGY SAVING BEIJING ENG RES CENT CO LTD
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