Air conditioning system and auxiliary heating control method thereof

An air-conditioning system and auxiliary heating technology, applied in heating methods, lighting and heating equipment, space heating and ventilation, etc., can solve problems such as low pressure ratio of compressors and difficulty in starting, so as to increase return air temperature, increase high pressure, and improve The effect of stability
CN112902408APending Publication Date: 2021-06-04GREE ELECTRIC APPLIANCES INC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GREE ELECTRIC APPLIANCES INC
Publication Date
2021-06-04

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Abstract

The invention discloses an air conditioning system and an auxiliary heating control method thereof. The air conditioning system comprises a compressor, a condenser and an evaporator which sequentially communicate with one another in an end-to-end mode; a throttling device is arranged between the condenser and the evaporator; the air conditioning system further comprises an auxiliary heating device and a controller; the auxiliary heating device is arranged at a return air inlet of the condenser and is used for increasing the return air temperature of the condenser so as to increase the high pressure of the air conditioning system; and the controller is used for controlling the auxiliary heating device to be started when the high pressure of the air conditioning system and the low pressure of the air conditioning system meet preset conditions. By means of the system, the problem that when the outdoor temperature is low, the compressor is excessively low in pressure ratio and is difficult to start can be solved, the stability of the air conditioner system is improved, and the annual refrigeration requirement under an extreme environment is met.
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Description

technical field

[0001] The invention relates to the field of unit technology, in particular to an air conditioning system and an auxiliary heating control method thereof. Background technique

[0002] There are many high-power electrical equipment in the large equipment room. Usually, these equipment will emit a lot of heat when they are working. If the equipment room cannot be dissipated in time, the heat in the equipment room will not be dissipated. Therefore, it is necessary to Air conditioner installed inside.

[0003] The refrigeration system of the air conditioner relies on the compressor to provide the power for the whole system to work. The ratio of high pressure and low pressure of the compressor is most suitable within a certain range, but in winter, especially in the north, the outdoor ambient temperature is lower than 0 ° C, and the equipment The room temperature is still high, and it still needs to be cooled. If the outdoor unit still maintains high air volume ...

Claims

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