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Safety prealarming device of refrigerating system

A technology of safety early warning and refrigeration system, which is applied in the direction of refrigeration safety arrangements, refrigerators, refrigeration components, etc., can solve problems such as increasing after-sales maintenance costs, burning compressors, and abnormal operation, so as to save after-sales maintenance costs and prolong service life , the effect of prolonging the use time

Inactive Publication Date: 2005-12-21
HISENSE HOME APPLIANCES GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for split air conditioners, in practical applications, because the installation and use of indoor and outdoor units are connected by pipes and there are multiple connection interfaces, refrigerant leakage is very easy to occur during use. Since there is no corresponding protection or early warning device, The cooling capacity of the air conditioner will drop, the work will not work properly, and even the compressor will be burned, which will make the entire air conditioner invalid.
However, even split-type air conditioners with high and low pressure protection devices cannot give timely warnings and take effective measures when refrigerant leakage occurs. Protection is only performed when all or most of the refrigerant leaks. Burned due to high temperature operation without normal cooling
The continuous increase in the failure rate greatly increases the after-sales maintenance cost of the enterprise, reduces the performance of air-conditioning products, and greatly affects the credibility of the enterprise's products

Method used

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  • Safety prealarming device of refrigerating system
  • Safety prealarming device of refrigerating system
  • Safety prealarming device of refrigerating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] as attached figure 2 As shown, the refrigeration circuit of the safety early warning device of the present invention includes: a compressor 1 , a condenser 5 , a main capillary 6 , an evaporator 7 , and a refrigerant leakage early warning device 4 . The refrigerant leakage early warning device 4 is connected between the return air line of the compressor and the evaporator 7, and a high pressure protection device 2 and a low pressure protection device 3 are connected in the refrigeration circuit, and the low pressure protection device 3 is connected between the refrigerant leakage early warning device 4 and the evaporator 7. Between the evaporators 7, the front and rear positions of the refrigerant leakage warning device 4 and the low pressure protection device 3 can also be interchanged; the high pressure protection device 2 is also connected between the compressor 1 and the condenser 5. Among them, the inlet of the refrigerant leakage early warning device 4 is connect...

Embodiment 2

[0018] Compared with Embodiment 1, only the connection mode of the refrigerant leakage warning device 4 is different in Embodiment 2, as shown in the attached image 3 As shown, the refrigerant leakage pre-warning device 4 is connected between the back of the main capillary tube and the evaporator 7, and may or may not be connected with the high-pressure protection device 2 and the low-pressure protection device 3 .

[0019] In the working process of the present invention, when the refrigeration circuit is working normally, the refrigerant leakage warning device 4 will not operate. The valve is in the disconnected state, and the signal is transmitted through the relevant control circuit, and the signal is transmitted to the controller system of the air conditioner. The controller gives an early warning signal to remind or require the air conditioner user to stop the operation of the air conditioner and perform related detection, so as to effectively prevent compression. If the...

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Abstract

A safety pre-alarm device on refrigerating system consists of pre-alarm low pressure valve and control circuit for transmitting electric signal, the input end of control circuit is electrically - connected to pre-alarm low pressure valve. It can remind or request the operator to stop air conditioner and to carry out relative detection when refrigerant leakage is occurred on refrigerating loop to cause loop return air pressure drop to meet pre-alarm pressure value of pre-alarm low pressure valve.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a safety early warning device applied to the refrigerant system of the air conditioner, which belongs to the improvement technology of the existing air conditioner. Background technique [0002] The air conditioners currently on the market, in the traditional air conditioner refrigeration system, in view of the product cost, most of the products are not equipped with high and low voltage protection devices, and only a small number of air conditioner products are equipped with high and low voltage protection devices corresponding to different use conditions ( See attached figure 1 ). Especially for split air conditioners, in practical applications, because the installation and use of indoor and outdoor units are connected by pipes and there are multiple connection interfaces, refrigerant leakage is very easy to occur during use. Since there is no corresponding protection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02
Inventor 李文杰林焜
Owner HISENSE HOME APPLIANCES GRP CO LTD
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