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Calibration equipment and calibration method for gas-liquid ratio tester

A technology for calibrating equipment and testers, used in pump testing, mechanical equipment, liquid variable capacity machinery, etc., and can solve problems such as design deviations

Active Publication Date: 2021-03-26
XIAN AERO ENGINE CONTROLS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cavitation test results are especially important for aviation fuel pumps, and small errors may lead to design deviations

Method used

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  • Calibration equipment and calibration method for gas-liquid ratio tester
  • Calibration equipment and calibration method for gas-liquid ratio tester
  • Calibration equipment and calibration method for gas-liquid ratio tester

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the present invention is further described:

[0027] A calibration device for a gas-liquid ratio tester, comprising a negative pressure oil tank 1, an oil filter group 2, an oil pump group 3, a pressure adjustment and measurement mechanism 4, a flow measurement mechanism 5, and a temperature adjustment and measurement mechanism 6. Schematic see figure 1 .

[0028] Among them, the negative pressure oil tank 1 adopts a special oil tank conforming to GB150-1998 "Steel Pressure Vessel", cooperates with a vacuum pump and a regulating valve to ensure that the pressure of the oil tank is 0.067±0.004MPa (absolute pressure); the outlet of the negative pressure oil tank 1 is connected to the oil filter group 2, the oil filter Group 2 adopts stainless steel filter elements to ensure the cleanliness of the working medium; the outlet of oil filter group 2 is connected to the pressure regulation and measurement mechanism 4, and the pre...

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Abstract

The invention belongs to the technical field of hydraulic machinery industry and hydraulic test, and relates to calibration equipment and a calibration method for a gas-liquid ratio tester. The calibration equipment comprises a negative pressure oil tank (1), an oil filter group (2), an oil pump group (3), a pressure adjusting and measuring mechanism (4), a flow measuring mechanism (5) and a temperature adjusting and measuring mechanism (6). According to the calibration equipment and the calibration method for the gas-liquid ratio tester, the requirement for using the gas-liquid ratio tester in the aviation accessory cavitation test is met, the problem that the calibration method provided by an original manufacturer is too large in error is solved, the calibration precision is improved, the gas-liquid ratio tester can be applied to the aviation accessory cavitation test, and a foundation and a reliable basis are provided for replacing the gas-liquid ratio calculation method with the gas-liquid ratio tester in the aviation accessory cavitation test; and meanwhile, the method has great popularization and application value, and can be used in aerospace accessory tests, rocket fuel filling, various pump anti-cavitation tests and other places where the gas-liquid ratio needs to be detected.

Description

technical field [0001] The invention belongs to the field of hydraulic machinery industry and hydraulic testing technology, and relates to a calibration device and a calibration method for a gas-liquid ratio tester. Background technique [0002] The cavitation test is to simulate the engine under high-altitude atmospheric conditions. When the inlet pressure of the oil pump drops below the standard atmospheric condition and the pump sucks a certain proportion of steam-liquid mixed oil, it is used to test whether the oil supply characteristics of the pump meet the performance requirements of the engine. The wear resistance and anti-cavitation ability of parts. It is a very important pilot project for aviation accessories, [0003] After simulating the engine working under atmospheric conditions at an altitude of 10 kilometers, check the anti-wear ability and anti-cavitation ability of the pump parts. The existing cavitation test of aviation accessories has been carried out b...

Claims

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Application Information

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IPC IPC(8): F04B51/00
CPCF04B51/00
Inventor 郑昊田浩玲夏志海张博冯哲李玉锋
Owner XIAN AERO ENGINE CONTROLS
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