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Protective adjustment method, device and air-conditioning system for a compressor

An adjustment method and adjustment device technology, applied in mechanical equipment, machines/engines, liquid variable capacity machinery, etc., can solve problems such as slow control effect, air-conditioning system failure, and affecting the normal operation of the air-conditioning system, so as to avoid repeated start-up and stop , the effect of avoiding failure

Active Publication Date: 2018-01-02
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the working condition of the air conditioning system is relatively bad, for example, when the outdoor temperature is too high during refrigeration operation or the exhaust temperature is too high due to poor heat dissipation adjustment, it is necessary to perform protective adjustment on the compressor. The existing protective adjustment scheme is to The output capacity of the compressor is reduced in stages, but in this control mode, the frequency of the compressor, the opening of the electronic expansion valve and the power of the fan of the external unit are adjusted according to the requirements of the output capacity, and the actual frequency of the compressor does not decrease, resulting in The control effect is slow, so that the air-conditioning system starts and stops repeatedly, and repeated starts and stops will easily cause the air-conditioning system to malfunction and affect the normal operation of the air-conditioning system

Method used

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  • Protective adjustment method, device and air-conditioning system for a compressor
  • Protective adjustment method, device and air-conditioning system for a compressor
  • Protective adjustment method, device and air-conditioning system for a compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] figure 1 It is a flow chart of an embodiment of a protective adjustment method for a compressor provided in this application.

[0050] Such as figure 1 As shown, the protective adjustment method provided in this embodiment is used to provide a protective control scheme for the compressor when the air conditioning system is under severe working conditions, and the specific steps include:

[0051] S101: Obtain the operating parameters of the compressor.

[0052] When the air-conditioning system is in the running state, the operating parameters of the compressor are detected at a certain period. The operating parameters are preferably the discharge temperature. Of course, the high pressure temperature and the ambient temperature can also be selected based on the same principle. Wherein, the detection period may be set to 20 seconds, 40 seconds or 60 seconds.

[0053] S102: Judging the working condition of the compressor.

[0054] Because the standard of harsh working c...

Embodiment 2

[0059] figure 2 It is a flow chart of another embodiment of a protective adjustment method for a compressor provided in this application.

[0060] Such as figure 2 As shown, the protective adjustment method provided in this embodiment is used for timely protective adjustment of the compressor of the air conditioning system when it is in a bad working condition. The specific adjustment method includes the following steps:

[0061] S201: Obtain the operating parameters of the compressor.

[0062] When the air-conditioning system is running, the operating parameters of the compressor are detected at a certain period. Since the exhaust temperature in the operating parameters will directly cause the air-conditioning system to repeatedly start and stop, the operating parameter here is preferably the exhaust temperature. Of course, based on The same principle can also choose high pressure temperature and ambient temperature. Wherein, the detection period may be set to 20 seconds...

Embodiment 3

[0071] image 3 It is a flow chart of another embodiment of a protective adjustment method for a compressor provided in this application.

[0072] Such as image 3 As shown, the protective adjustment method provided in this embodiment is used for timely protective adjustment of the compressor of the air conditioning system when it is in a bad working condition. The specific adjustment method includes the following steps:

[0073] S301: Obtain the operating parameters of the compressor.

[0074] When the air-conditioning system is running, the operating parameters of the compressor are detected at a certain period. Since the exhaust temperature in the operating parameters will directly cause the air-conditioning system to repeatedly start and stop, the operating parameter here is preferably the exhaust temperature. Of course, based on The same principle can also choose high pressure temperature and ambient temperature. Wherein, the detection period may be set to 20 seconds, ...

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Abstract

The present invention discloses a protective adjustment method, a device and an air conditioning system of a compressor. The method and the device are used for protective adjustment of the compressor of the air conditioning system. Particularly, the method includes firstly acquiring operating parameters of the compressor; judging the operating parameters and judging that the compressor is in a bad condition when the operating parameters meet the preset judgment conditions; lowering working frequency of the compressor in the preset adjustment mode according to the operating parameters when the compressor is judged to be in a bad condition. It can be seen that in this embodiment, the compressor is directly controlled so that the compressor can quickly get rid of the harsh conditions, thus avoiding repeated start and stop of the air conditioning system caused by slow control of the traditional adjustment mode and thereby avoiding breakdown of the air conditioning system due to repeated start and stop.

Description

technical field [0001] The present application relates to the technical field of refrigeration, and more specifically, to a protective adjustment method and device for a compressor, and an air conditioning system. Background technique [0002] When the working condition of the air conditioning system is relatively bad, for example, when the outdoor temperature is too high during refrigeration operation or the exhaust temperature is too high due to poor heat dissipation adjustment, it is necessary to perform protective adjustment on the compressor. The existing protective adjustment scheme is to The output capacity of the compressor is reduced step by step, but in this control mode, the frequency of the compressor, the opening of the electronic expansion valve and the power of the fan of the external unit are adjusted according to the requirements of the output capacity, and the actual frequency of the compressor does not decrease, resulting in The control effect is slow, so ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/10
CPCF04B49/10
Inventor 廖哲永
Owner GREE ELECTRIC APPLIANCES INC
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