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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

Pending Publication Date: 2021-06-04
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an air conditioning system and its auxiliary heating control method to solve the problem in the prior art that the compressor pressure ratio is too low to start when the outdoor temperature is low

Method used

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  • Air conditioning system and auxiliary heating control method thereof
  • Air conditioning system and auxiliary heating control method thereof
  • Air conditioning system and auxiliary heating control method thereof

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Embodiment 1

[0044] This embodiment provides an air conditioning system, figure 1 It is a structural diagram of an air conditioning system according to an embodiment of the present invention, such as figure 1 As shown, the air conditioning system includes a compressor 1, a condenser 2, and an evaporator 3 connected in sequence from end to end. A throttling device 4 is arranged between the condenser 2 and the evaporator 3, and the refrigerant is discharged from the exhaust end of the compressor 1. The high-temperature and high-pressure gaseous refrigerant condenses and releases heat in the condenser 2 and turns into a liquid state. After being throttled by the throttling device 4, it enters the evaporator 3. After being evaporated by the evaporator 3, it becomes a gaseous state and returns to the suction end of the compressor 1. , to complete a refrigerating cycle, the above-mentioned air-conditioning system also includes:

[0045] The auxiliary heating device 5 is arranged at the air retu...

Embodiment 2

[0054] This embodiment provides another air conditioning system, image 3 is a structural diagram of an air conditioning system according to another embodiment of the present invention, in order to detect the high pressure and low pressure of the air conditioning system, such as image 3 As shown, the above-mentioned air-conditioning system also includes: a first pressure detection device 7, arranged between the throttling device 4 and the condenser 2, for detecting the high pressure of the air-conditioning system; a second pressure detection device 8, arranged between the evaporator 3 and the Between compressor 1, it is used to detect the low pressure of the air conditioning system.

[0055] In practical applications, in order to accelerate air flow, such as figure 2 As shown, the air conditioning system also includes: a first fan 9, arranged at the air return port of the condenser 2, used to accelerate the air flow of the air return port of the condenser 2; a second fan 10...

Embodiment 3

[0057] This embodiment provides an auxiliary heating control method, which is applied to the above-mentioned air conditioning system, Figure 4 It is a flowchart of an auxiliary heating control method according to an embodiment of the present invention, such as Figure 4 As shown, the method includes:

[0058] S101. Obtain the high pressure of the air conditioning system and the low pressure of the air conditioning system.

[0059] During specific implementation, the high pressure of the air conditioning system is detected by the first pressure detection device arranged between the throttling device and the condenser; the low pressure of the air conditioning system is detected by the second pressure detection device arranged between the evaporator and the compressor.

[0060] S102. When the high pressure of the air conditioning system and the low pressure of the air conditioning system meet the preset conditions, control the auxiliary heating device to turn on to increase the...

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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.

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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Application Information

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IPC IPC(8): F24F11/871F24F11/64
CPCF24F11/871F24F11/64
Inventor 徐天赐尹永存张永伟张磊鹏杨清
Owner GREE ELECTRIC APPLIANCES INC
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