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Propellant mass weighing device for attitude control engine test

A weighing device and propellant technology, which is applied in the field of attitude control engine test propellant mass weighing device, can solve the problems affecting the accuracy of small flow measurement, so as to avoid the decline of quality measurement accuracy, improve environmental performance, and improve quality measurement The effect of precision

Active Publication Date: 2019-07-16
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The medium used by the metering department to calibrate the flowmeter is different from the medium used in the test site test run in terms of physical properties, temperature, and viscosity. There are also differences between the calibrated flowmeter and the use environment. These factors will affect the accuracy of small flow measurement. The technical problems caused by the steady-state small flow measurement of the attitude control engine

Method used

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  • Propellant mass weighing device for attitude control engine test
  • Propellant mass weighing device for attitude control engine test
  • Propellant mass weighing device for attitude control engine test

Examples

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with accompanying drawing:

[0037] see figure 1 , a propellant mass weighing device for attitude control engine test, comprising a placement platform 1, an electronic scale 2, an electronic scale height adjustment device 3, a propellant recovery container 5, a reversing valve 4, a propellant weighing storage tank 6, a Gas recovery tank 7, one-way valve 8 and multiple connecting pipelines 9;

[0038] Both the propellant recovery container 5 and the deflated gas recovery tank 7 are fixedly installed on the placement platform 1;

[0039] The propellant weighing tank 6 includes an upper tank body 61 and a lower connecting base 62; the upper end of the lower connecting base 62 is fixedly connected with the upper tank body 61, and the lower end of the lower connecting base 62 is in contact with the upper surface of the placement platform 1;

[0040] There is a pit on the placement platform 1, the opening ...

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PUM

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Abstract

The invention provides an attitude control engine test propellant mass weighing device, which comprises a placement platform, an electronic scale, an electronic scale height adjusting device, a reversing valve, a propellant recovery container, a propellant weighing storage tank, a deflation recovery tank and a check valve. The propellant recovery container and the deflation recovery tank are fixedly installed on the placement platform. The propellant weighing storage tank comprises an upper storage tank body and a lower connection base. The placement platform is provided with a pit therein. The electronic scale is placed in the pit. The electronic scale height adjusting device is used for adjusting the height of the electronic scale. A propellant inlet of the upper storage tank body and the propellant recovery container are both connected with the reversing valve. The reversing valve is communicated with an external propellant supply system through a connection pipeline. A propellant outlet of the upper storage tank body is communicated with an inlet of the check valve, and an outlet of the check valve is communicated with the deflation recovery tank. Through the invention, the influence of pipeline constraints, initial measurement errors and storage tank deflation on the accurate measurement of propellant mass are eliminated.

Description

technical field [0001] The invention relates to the technical field of aerospace engine tests, in particular to a propellant mass weighing device for attitude control engine tests. Background technique [0002] In attitude control engine tests, mass flow meters are often used for flow measurement. The medium used by the metering department to calibrate the flowmeter is different from the medium used in the test site test run in terms of physical properties, temperature, and viscosity. There are also differences between the calibrated flowmeter and the operating environment. These factors will affect the accuracy of small flow measurement. It caused technical difficulties in the steady-state small flow measurement of the attitude control engine. Aiming at these problems, a method of in-situ calibration for steady-state flow rate of mass flowmeter is proposed to improve measurement accuracy. According to the steady-state flow in-situ calibration method, the real propellant i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G21/02G01G21/22
CPCG01G21/02G01G21/22
Inventor 党栋李民民刘阳寇鑫李广会赵曙张建明赵飞杨敏利宫厚娟张鹏
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST
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