Diaphragm capsule valve stroke test device and using method thereof

A test device and bellows valve technology, which is applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc., can solve problems such as low efficiency, difficulty in ensuring constant temperature of the test environment, complicated process, etc., and achieve reduction Small impact, improved test accuracy and test efficiency, large economic and social value effects

Inactive Publication Date: 2014-02-19
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The function of the high-altitude valve of the engine is to adjust the pressure in the lubricating system cavity to ensure the normal operation of the engine lubrication system within the entire flight envelope; the bellows-type diaphragm box valve is an important component of the high-altitude valve. Atmospheric pressure and temperature changes, and the working stroke of the bellows changes to adjust the gas flow area; therefore, it is required to measure the working stroke of the bellows valve at a certain temperature and vacuum to check the performance of the component; currently, the industry is conducting tests on this part The device only has a heating function, which is greatly affected by seasonal environmental factors, and it is difficult to ensure a constant temperature of the test environment. The vacuum pressure needs to be calculated manually, and the process is complicated and inefficient.

Method used

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  • Diaphragm capsule valve stroke test device and using method thereof
  • Diaphragm capsule valve stroke test device and using method thereof
  • Diaphragm capsule valve stroke test device and using method thereof

Examples

Experimental program
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Embodiment 1

[0030] This embodiment provides a bellows valve travel test device, the bellows valve travel test device consists of the following: workbench 1, vacuum chamber 2 and instrument box 3, vibrator 4, heating resistance wire 5, dial indicator 6 , measuring tool 7, evaporator 8, vacuum pump 9, manual switch valve 10, automatic switch valve 11, automatic air release valve 12, manual air release valve 13, condenser 14, refrigeration compressor 15, absolute pressure sensor 16, temperature measurement sensor 17;

[0031] The vacuum chamber 2 includes a bell-type structure and a lower chassis, the bell-type structure is located above the lower chassis, and the lower chassis is provided with a small hole structure for installing measuring tools 7, sensors, conductive terminals and for The intake and exhaust of the vacuum chamber, the vacuum chamber 2 and the instrument box 3 are fixedly installed on the workbench 1;

[0032] The vacuum pump 9, the refrigeration compressor 15 and the cond...

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PUM

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Abstract

The invention discloses a diaphragm capsule valve stroke test device. The diaphragm capsule valve stroke test device comprises a workbench (1), a vacuum chamber (2), an instrument box (3), a vibrator (4), a resistive heater (5), a dial indicator (6), a test tool (7), an evaporator (8), a vacuum pump (9), a manual-operation switch valve (10), an automatic switch valve (11), an automatic vent valve (12), a manual-operation vent valve (13), a condenser (14), a refrigeration compressor (15), an absolute pressure sensor (16) and a temperature measuring sensor (17). The vacuum chamber (2) comprises a bell jar type structure and a lower chassis. The bell jar type structure is arranged above the lower chassis. A small-hole structure is arranged on the lower chassis, and the vacuum chamber (2) and the instrument box (3) are fixedly installed on the workbench (1). The high-precision absolute pressure sensor is used for measuring pressure to control the vacuum pump and an electromagnetic valve to be opened and closed, and automatic control over vacuum pressure is achieved. Test precision and test efficiency are greatly improved, and the diaphragm capsule valve stroke test device has larger economic and social values.

Description

technical field [0001] The invention relates to the technical field of structural design and application of a bellows valve travel test device, and in particular provides a bellows valve travel test device and a using method. Background technique [0002] The function of the high-altitude valve of the engine is to adjust the pressure in the lubricating system cavity to ensure the normal operation of the engine lubrication system within the entire flight envelope; the bellows-type diaphragm box valve is an important component of the high-altitude valve. Atmospheric pressure and temperature changes, and the working stroke of the bellows changes to adjust the gas flow area; therefore, it is required to measure the working stroke of the bellows valve at a certain temperature and vacuum to check the performance of the component; currently, the industry is conducting tests on this part The device only has a heating function, which is greatly affected by seasonal environmental fact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 迟艳郭旭刘玫龚弋飞崔艳敏
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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