Heat pump -type subway vehicle air conditioner

Abstract

The present invention discloses a subway heat pump type air-conditioning structure. An outlet end of a compressor (1) of a heat pump type air-conditioner for a subway vehicle is connected with an input end of a condenser (6) through a refrigeration electromagnetic valve (4) and an exhausting damping pipe (2). An output end of the condenser (6) is connected with an inlet end of the compressor (1) through an air-returning damping pipe (13) and a heating electromagnetic valve A (3'). The outlet end of the compressor (1) is connected with an input end of an evaporator (11) through a heating electromagnetic valve (3) and the exhausting damping pipe (2). An output end of the evaporator (11) is connected with the inlet end of the compressor (1) through the air-returning damping pipe (13) and a refrigeration electromagnetic valve A (4'). The output end of the evaporator (11) is connected with the input end of the condenser (6) through a liquid storage device A (9'), a one-way valve A (7') and a thermostatic expansion valve A (10'). An temperature sensing packet and a capillary of the thermostatic expansion valve A (10') are connected with the output end of the condenser (6). The output end of the condenser (6) is connected with the input end of the evaporator (11) through the liquid storage device (9), the one-way valve (7) and the thermostatic expansion valve (10). The temperature sensing packet and the capillary of the thermostatic expansion valve (10) are connected with the output end of the evaporator (11). The air-conditioning structure is safe, energy-saving, environmentally-friendly and highly effective.

Description

(1) Technical field [0001] The invention relates to an air-conditioning structure for subway vehicles, in particular to a subway heat pump type air-conditioning structure. (2) Background technology [0002] The air conditioner of the subway car is a device installed on the subway car to adjust the air in the subway passenger car. It can create the comfort of the thermal micro-environment in the car, keep the air temperature, humidity, flow rate, cleanliness, noise and residual pressure in the car within the comfortable standard range, which is very important for protecting the physical and mental health of passengers and improving their work efficiency and quality of life have a positive effect. [0003] Subway air conditioners need to have two major functions of cooling and heating. At present, in addition to cooling, the air conditioners of subway vehicles in my country mainly use electric heaters for heating in winter. The heating method of electric heaters is simple to ...

AI Technical Summary

Problems solved by technology

At the same time, this kind of equipment also proposes an effective solution to the current situation of low energy use efficiency and uneven distribution in our country.

[0005] At present, the heat pump air conditioner has been used in many occasions and has become a relatively mature technology, but its application in subway vehicles is still blank.

Moreover, due to the special operating environment of the subway, sometimes it runs under the ground for a long time, and sometimes it suddenly runs on the ground, and the temperature changes greatly; the subway mainly runs under the ground and carries a large number of pedestrians, which involves personal safety. The safety requirements are particularly high; once a fault occurs under the ground, it will be more difficult to repair, and the reliability and stability of the equipment also need to be paid special attention to and solved. The air conditioner must have good anti-vibration and impact resistance to adapt to special occasion use

Moreover, the heat pump air conditioner that is planned to be installed on the subway can serve as cooling and heating functions concurrently, and has special and stable and reliable requirements for its conversion control. Therefore, it is not possible to simply configure the heat pump air conditioner in the prior art directly on the subway vehicle. It must be designed and manufactured in a targeted manner to meet the special conditions and requirements of the subway

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