Apparatus and method for testing wear resistance
A technology of anti-wear performance and testing equipment, which is applied in the research field of laboratory refrigeration oil and can solve problems such as insufficient friction performance
Active Publication Date: 2022-03-29
PETROCHINA CO LTD
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Problems solved by technology
However, in the actual operation of refrigeration oil, there are obvious deficiencies in the evaluation of the friction performance of the contact state of "lubricating oil, refrigerant, and workpiece".
Method used
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Embodiment Construction
[0049] figure 1 It is a structural schematic diagram of the anti-wear performance testing device in the present invention. figure 2 It is a structural schematic diagram of the ring block wear tester in the present invention. Such as figure 1 , figure 2 As shown, the device used for anti-wear performance testing includes: ring block wear tester 1, constant pressure control unit, vacuum unit 3, refrigerant supply unit 4, and the ring block wear tester is controlled by the constant pressure The units are respectively connected with the vacuum pumping unit and the refrigerant supply unit 4, and the ring block wear tester 1 is provided with a test pressure chamber 2, and the test pressure chamber 2 is connected with a sampling pipeline provided with a sampling valve C . A feed pipeline provided with a feed valve E and an oil discharge pipeline provided with an oil discharge valve D, the sampling pipeline is used to inject the refrigerating machine oil into the test pressure ch...
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A device for testing anti-wear properties, comprising: a ring block wear tester, a constant pressure control unit, a vacuum unit, and a refrigerant supply unit, and the ring block wear tester is connected to the vacuum unit, the refrigeration unit, and The ring block wear tester is equipped with a test pressure chamber, a heating device and a temperature control device. The vacuum unit and the refrigerant supply unit are connected in parallel to the feed pipeline. The constant pressure control unit is set between the vacuum unit and the refrigerant supply unit. On the inlet pipeline between the test pressure chambers, the pressure of the test pressure chamber is changed by opening or closing the vacuum unit, so that the refrigerant in the refrigerant supply unit is injected into the test pressure chamber, and the heating device heats the test pressure chamber, and the heating device Under the control of the temperature control device, it is heated to a test temperature and maintained at the test temperature. During the heating process of the test pressure chamber, the constant pressure control unit is continuously adjusted to maintain the pressure of the test pressure chamber at a certain test pressure value.
Description
technical field [0001] The invention relates to a device and a method for testing the anti-wear performance, in particular to a device and a method for testing the anti-wear performance in a mixed state of refrigerating machine oil and refrigerant, and belongs to the technical field of laboratory refrigerating machine oil research. Background technique [0002] Anti-wear performance is an important performance index of refrigeration oil products. Refrigerator oil forms a layer of oil film between the running-in surfaces, which reduces the frictional force of motion, thereby reducing frictional power consumption and frictional heat, ultimately reducing the wear of parts and improving the reliability and durability of compressor operation. [0003] During the operation of the refrigeration compressor, the refrigeration oil contacts the refrigerant under certain pressure and temperature conditions, and the refrigerant dissolves into the refrigeration oil under the pressure. Und...
Claims
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IPC IPC(8): G01N3/56
CPCG01N3/56
Inventor 王鹏李雁秋张守杰张毅涛蒙猛
Owner PETROCHINA CO LTD