Refrigerant leakage test device and control method for refrigerant leakage device
A leak test, refrigerant technology, applied in the direction of measuring the acceleration and deceleration rate of fluid, using liquid/vacuum for liquid tightness measurement, etc., can solve the problem of unstable gas state, low test reliability, inaccurate test results, etc. problem, to achieve the effect of accurate control, high test reliability and accurate test results
Active Publication Date: 2017-05-24
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
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[0019] 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.
[0020] 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.
[0021] 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 is applied to the technical field of refrigerant leakage testing, and discloses a refrigerant leakage testing apparatus and a control method for the same. The refrigerant leakage testing apparatus comprises a refrigerant liquid 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 part; the metering part is an electronic balance, and the refrigerant liquid storage tank is arranged on the electronic balance; and the flow controller is connected with a main pipeline. The control method for the same employs the refrigerant leakage testing apparatus, and comprises the following steps: setting the leakage total quality of a refrigerant, the leakage time of the refrigerant and the type of the refrigerant through the control part, and setting the physical state of the leaked refrigerant to be a gaseous state or a liquid state. According to the refrigerant leakage testing apparatus and the control method for the same, provided by the invention, the gas flow of the refrigerant can be accurately controlled, the test result is accurate, and the test reliability is high.
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 control method for the refrigerant leakage device. 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, d...
Claims
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IPC IPC(8): G01M3/26
Inventor 刘振唐华
Owner GD MIDEA AIR CONDITIONING EQUIP CO LTD