Double-module judgment method and device for refrigerating fluid leakage
A refrigerant and judgment module technology, applied in mechanical equipment and other directions, can solve the problem of insufficient accuracy of the judgment method without considering the refrigerant leakage, and achieve the effect of improving the accuracy
Inactive Publication Date: 2020-11-13
SICHUAN HONGMEI INTELLIGENT TECH CO LTD
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Problems solved by technology
[0004] Although the existing technical solution can detect whether the refrigerant leaks, it does not take into account that the accuracy of the refrigerant leakage judgment method is insufficient due to the excessive starting current when the compressor is started.
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[0067] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.
[0068] Such as figure 1 As shown, the embodiment of the present invention provides a dual-mode judgment method for refrigerant leakage, and the method may include the following steps:
[0069] Step 101: Collecting the discharge temperature of the compressor at least twice during the start-up process of the compressor;
[0070] Step 102: For any first ...
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The invention provides a double-module judgment method and device for refrigerating fluid leakage. The method comprises the steps that in the starting process of a compressor, exhaust gas temperaturesof the compressor are acquired by two or more times; for any first exhaust gas temperature and second exhaust gas temperature which are acquired adjacently, whether the difference between the first exhaust gas temperature and the corresponding second exhaust gas temperature is greater than a predetermined first temperature difference threshold value or not is judged; if the difference between thefirst exhaust gas temperature and the corresponding second exhaust gas temperature is greater than the first temperature difference threshold value, it is confirmed that the compressor has the problem of refrigerating fluid leakage, and starting of the compressor is stopped; and if the difference between the first exhaust gas temperature and the corresponding second exhaust gas temperature is notgreater than the first temperature difference threshold value, winding parameters of the compressor are obtained after starting of the compressor is completed, and whether the compressor has the problem of refrigerating fluid leakage or not is judged according to the winding parameters. By means of the double-module judgment method, precision of the double-module judgment method for refrigeratingfluid leakage can be improved.
Description
technical field [0001] The invention relates to the technical field of electrical engineering, in particular to a dual-mode judgment method and device for refrigerant leakage. Background technique [0002] Refrigerant plays a very important role in the refrigeration system. The refrigerant flows through the motor before (or after) the compressor completes compression, and realizes the heat dissipation effect on the compressor motor through heat exchange. The temperature of the motor winding, that is, the heat dissipation effect depends on the refrigerant. flow rate and refrigerant temperature. After the refrigerant flows through the compressor motor, it passes through the compressor shell, and the exhaust pipe continuously exchanges heat with the surrounding air, and the temperature of the high-temperature gas of the refrigerant is also continuously reduced. The refrigerant may slowly leak during the operation of the refrigeration system. If the refrigerant leaks to a certa...
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IPC IPC(8): F24F11/64F24F11/56F24F11/36F24F11/65F24F11/89
CPCF24F11/64F24F11/56F24F11/36F24F11/65F24F11/89
Inventor 高向军李昱兵李晓彦陈跃朱绯
Owner SICHUAN HONGMEI INTELLIGENT TECH CO LTD