Small-orifice flow rate test device and test method
A technology of flow test and test device, which is applied in the field of flow test, can solve problems such as inaccurate pressure measurement and inaccurate small hole flow test results, and achieve the effect of accurate measurement
Inactive Publication Date: 2016-12-14
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0005] In order to solve the problem that the inaccurate pressure measurement of the lubricating oil inlet on the small hole in the small hole flow test results in inaccurate results of the small hole flow test, the embodiment of the present invention provides a small hole flow test device and test method
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[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
[0033] The test device provided by the embodiment of the present invention is suitable for the small hole flow test of the annular part with small holes on the side wall, and one end of the small hole is located on the outer wall of the part, and the other end of the small hole is located on the inner wall of the part, through the test device The pressure of the lubricating oil at the inlet end of the lubricating oil on the small hole can be accurately measured.
[0034] figure 1 It is a schematic diagram of the overall structure of a small hole flow test device provided in the embodiment of the present invention, see figure 1 , the device includes: an oil supply system 1 for providing lubricating oil, and a test fixture 2 .
[0035] like ...
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The invention discloses a small-orifice flow rate test device and a test method. The small-orifice flow rate test device comprises an oil supply system and a test fixture, and is characterized in that the test fixture comprises a sealing ring arranged on a component in a sleeved manner, a support block and a pressure gauge, the inner wall of the sealing ring and the outer wall of the component form a cavity, a small-orifice inlet is located in the cavity, the support block is installed on the sealing ring, the support block is provided with an oil outlet mouthpiece connected with a small-orifice outlet, the sealing ring is provided with an oil inlet mouthpiece used for being connected with the oil supply system, the oil inlet mouthpiece is communicated with the cavity, and the pressure gauge is connected to the sealing ring and is communicated with the cavity. According to the invention, a cavity is formed between the test fixture and a component to be tested when the component to be tested is clamped, and a small orifice in the component acts as one end of a lubricating oil inlet and located in the cavity. When a small-orifice flow rate test is performed, the inlet of the small orifice is located in the cavity, so that the pressure in the cavity can accurate reflect the pressure at the small-orifice inlet, and thus the pressure at the small-orifice inlet can be measured accurately.
Description
technical field [0001] The invention relates to the field of flow test, in particular to a small hole flow test device and a test method. Background technique [0002] In medium and small gas turbines, there are oil supply rings, bearing seats and other parts, and there are small holes of Ф0.5~Ф1.8mm on such parts. When the gas turbine is working, the aviation jet lubricating oil flows through such small holes to play a role of lubrication, and the size of the hole diameter determines the flow rate of the lubricating oil. Therefore, before using such parts, it is necessary to adjust each small The flow test of the orifice is carried out, and the flow rate of the small hole and the pressure at the inlet of the small hole measured by the small hole flow test. [0003] There is a small hole flow test device, which connects a compressed air source with a closed container through an air inlet pipe, an outlet pipeline of the closed container is connected with a sample fixture, th...
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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 郭学杰王充聪黄若峰刘风王臻张俊浩
Owner WUHAN MARINE MACHINERY PLANT