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Method and device for detecting dirty blockage of condenser

A detection method and technology of a detection device are applied in the heating mode, control input involving system state, lighting and heating equipment, etc., which can solve the problems of inconvenient inspection, cleaning, adsorption of sundries in the air-conditioning condenser, and reduced energy efficiency. The effect of accurate judgment of dirty blockage

Active Publication Date: 2020-10-30
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The outdoor unit of the air conditioner is usually installed outdoors. After a long time of use, the air conditioner condenser will inevitably absorb some debris, resulting in dirty clogging.
The installation space of the air conditioner is small, which is not convenient for inspection and cleaning
When the air conditioner unit is running under the condition of dirty and clogged, the energy efficiency is reduced and the cooling / heating effect is poor, which affects the reliability of the unit operation
[0003] In the prior art, the method of judging whether the condenser is dirty or clogged is usually used by the temperature of the condenser, but in this way, the judgment index is single. When the gear or frequency of the external fan changes, the temperature of the condensing outlet will change greatly. There is a large error in the judgment result, which is not accurate

Method used

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  • Method and device for detecting dirty blockage of condenser
  • Method and device for detecting dirty blockage of condenser
  • Method and device for detecting dirty blockage of condenser

Examples

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no. 1 example

[0060] The embodiment of the present invention provides an air conditioner 1, which is used to adjust the indoor temperature, and has the function of detecting whether the condenser is dirty or not. see figure 1 , is a functional block diagram of the air conditioner 1 provided by the embodiment of the present invention. The air conditioner 1 includes a compressor 2 , an oil separator 3 , a four-way valve 4 , a heat exchanger 5 , a gas-water separator 6 , an exhaust gas temperature sensor 8 , a high pressure sensor 7 , and an ambient temperature sensor 9 . Among them, the compressor 2, the oil separator 3, the four-way valve 4 and the gas-water separator 6 are sequentially connected to form a closed circuit, the four-way valve 4 is also connected to the heat exchanger 5, and the exhaust gas temperature sensor 8 is arranged on the side of the compressor 2. At the outlet, the high pressure sensor 7 is arranged between the compressor 2 and the oil separator 3 , and the ambient te...

no. 2 example

[0069] An embodiment of the present invention provides a method for detecting dirty blockage of a condenser, which is used for effectively and accurately detecting the dirty blockage of a condenser. see image 3 , is a flowchart of a method for detecting dirty blockage of a condenser provided by an embodiment of the present invention. The condenser dirty clogging detection method includes:

[0070] Step S301: Obtain the actual high pressure value, actual discharge temperature and actual ambient temperature of the air conditioner 1 during operation.

[0071] Understandably, the actual high pressure value is collected by the high pressure sensor 7 of the air conditioner 1 , the actual exhaust temperature is collected by the exhaust temperature sensor 8 , and the actual ambient temperature is collected by the ambient temperature sensor 9 . The actual high pressure value and exhaust temperature can be used to reflect the state of the air conditioner 1 during operation.

[0072]...

no. 3 example

[0105] see Figure 9 , Figure 9 A functional block diagram of a condenser fouling detection device 12 provided by a preferred embodiment of the present invention. It should be noted that the basic principles and technical effects of the condenser dirty blockage detection device 12 provided in this embodiment are the same as those of the above-mentioned embodiments. The corresponding content in the embodiment. The condenser dirty blockage detection device 12 includes: a parameter acquisition unit 13 , a parameter determination unit 14 , a dirty blockage situation determination unit 15 , and a comparison table establishment unit 16 .

[0106] The parameter obtaining unit 13 is used to obtain the actual high pressure value, the actual discharge temperature and the actual ambient temperature when the air conditioner 1 is running.

[0107] It can be understood that, in a preferred embodiment, the parameter acquiring unit 13 can be used to execute step S301.

[0108] The parame...

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Abstract

The invention provides a condenser filth blockage detection method and device and relates to the technical field of air conditioners. According to the method and the device, an actual high pressure value, actual venting temperature and actual environmental temperature during running of an air conditioner are obtained, actual saturation temperature and a venting temperature reference value are searched for according to the actual high pressure value, then a saturation temperature reference value is searched for according to the actual environmental temperature, and the filth blockage conditionof a condenser is determined according to the actual saturation temperature, the actual venting temperature, the saturation temperature reference value and the venting temperature reference value. Since the filth blockage condition of the condenser is determined according to the three parameters including the actual high pressure value, the actual venting temperature and the actual environmental temperature, the influences of air flow, frequency and the like on a judgment result of the filth blockage condition are reduced, and the judgment result of the filth blockage condition is more accurate.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method and device for detecting dirty blockage of a condenser. Background technique [0002] The outdoor unit of the air conditioner is usually installed outdoors. After a long time of use, the air conditioner condenser will inevitably absorb some debris, resulting in dirty blockage. The installation space of the air conditioner is small, which is not convenient for inspection and cleaning. When the air conditioning unit is running under the condition of dirty and clogged, the energy efficiency will be reduced, and the cooling / heating effect will be poor, which will affect the reliability of the unit operation. [0003] In the prior art, the method of judging whether the condenser is dirty or clogged is usually used by the temperature of the condenser, but in this way, the judgment index is single. When the gear or frequency of the external fan changes, the temperatur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/49F24F11/64F24F110/12F24F140/00
CPCF24F11/49F24F11/64F24F2110/12F24F2140/00
Inventor 陈华章秋平黄春刘合心任小辉
Owner NINGBO AUX ELECTRIC