Refrigerant leak test device and refrigerant leak test method
A technology for leak testing and refrigerants, which is applied in the direction of liquid/vacuum measurement for liquid tightness, etc. It can solve the problems of unstable gas state, low test reliability, inaccurate test results, etc., and achieve accurate test results and test results. High reliability, guaranteed accuracy and reliability
Active Publication Date: 2017-05-31
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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Problems solved by technology
The current test method cannot accurately control the gas flow
In the process of gaseous refrigerant leakage, due to the unstable state of the gas, the flow control cannot be performed by the gas flow controller
If manually adjusted, it is difficult to guarantee the test accuracy
At the same time, for the test with a large amount of refrigerant leakage, after many tests, due to the sharp drop in temperature of the refrigerant tank, even if the quality of the refrigerant in the tank is sufficient, the total amount of refrigerant leakage cannot be guaranteed, resulting in test results Inaccurate, low test reliability
Method used
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0025] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
[0026] It should also be noted that the orientation terms such as left, right, up, and down in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiti...
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The invention belongs to the technical field of refrigerating fluid leakage testing, and provides a refrigerating fluid leakage testing device and method. The refrigerating fluid leakage testing device comprises a refrigerating fluid storage tank, a flow controller, a metering part, a gasification part and a control part; the gasification part comprises a heat exchanger and a heating component, the flow controller is connected to the refrigerating fluid storage tank and connected with a main pipeline penetrating through the heat exchanger, the main pipeline located at the downstream position of the heat exchanger is connected with a state detection part used for detecting the state of refrigerating fluid, and the control part is electrically connected with the flow controller, an electronic balance, the heating part and the state detection part. The refrigerating fluid leakage testing device is adopted by the refrigerating fluid leakage testing method. According to the refrigerating fluid leakage testing device and method, the state detection part is used for detecting pressure and temperature of refrigerating fluid at an outlet, it is guaranteed that the refrigerating fluid is at a gaseous state, and accuracy and reliability of testing are guaranteed.
Description
technical field [0001] The invention belongs to the technical field of refrigerant leakage testing, and in particular relates to a refrigerant leakage testing device and a refrigerant leakage testing method. Background technique [0002] Due to the flammability of new refrigerants represented by R290 (propane), R32 (difluoromethane), etc., relevant standards require that air conditioners using flammable refrigerants need to be tested for refrigerant leakage in some cases. To ensure the safety of the air conditioner. There is currently no dedicated automatic test setup for this test. The current test method cannot accurately control the gas flow. During the leakage of the gaseous refrigerant, the gas flow cannot be controlled by the gas flow controller due to the unstable state of the gas. If it is adjusted manually, it is difficult to guarantee the test accuracy. At the same time, for the test with a large amount of refrigerant leakage, after many tests, due to the sharp...
Claims
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IPC IPC(8): G01M3/02
Inventor 刘振唐华
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD