Liquid oxygen supply system of engine test bed
A technology of test bench and engine, which is applied in the field of test bench test, can solve problems such as explosion of oxygen pipeline, achieve the effects of avoiding explosion, avoiding explosion of oxygen pipeline caused by iron filings, and improving accuracy
Pending Publication Date: 2021-04-09
BEIJING AEROSPACE SANFA HIGH TECH
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Problems solved by technology
In addition, high-pressure pure oxygen is extremely oxidizing. If it encounters grease or iron filings moving at high speed in the pipeline, the oxygen pipeline will explode. The design of the oxygen system needs to take into account safety and applicability
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[0023] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the prese...
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A liquid oxygen supply system of an engine test bed comprises a liquid oxygen supply path and a nitrogen pressurization path. The liquid oxygen supply path comprises a liquid oxygen supply path starting ball valve, a liquid oxygen storage tank, a first pneumatic ball valve of the liquid oxygen supply path, a flow meter of the liquid oxygen supply path, a flow orifice plate of the liquid oxygen supply path and a second pneumatic ball valve of the liquid oxygen supply path which are sequentially communicated through a pipeline in the direction from a liquid oxygen filling port to an oxygen supplementing mixer; and the nitrogen pressurization path comprises a nitrogen pressurization path filter, a nitrogen pressurization path manual stop valve, a nitrogen pressurization path pressure reducing valve, a nitrogen pressurization path electromagnetic valve and a nitrogen pressurization path one-way valve which are sequentially communicated through a pipeline in the direction from the nitrogen source to the nitrogen injection port of the liquid oxygen storage tank. According to the liquid oxygen supply system of the engine test bed, the opening and closing of the oxygen valve can be accurately controlled, a nitrogen pressurizing mode is adopted, the explosion of an oxygen pipeline is avoided, and both the safety and the applicability are considered.
Description
technical field [0001] The invention relates to the technical field of test bench testing, in particular to a liquid oxygen supply system for an engine test bench. Background technique [0002] The engine liquid oxygen supply system of the test bench is an important part of the engine ground test. The design of the oxygen system is one of the key systems in the construction of the engine test bench. It is mainly to provide accurate flow of oxidant for the test parts and igniters, and precisely control the oxygen valve. on and off. In addition, high-pressure pure oxygen is extremely oxidizing. If it encounters grease or high-speed iron filings in the pipeline, the oxygen pipeline will explode. The design of the oxygen system needs to take into account safety and applicability. Contents of the invention [0003] The technical problem of the present invention is to overcome the deficiencies of the prior art and provide a liquid oxygen supply system for an engine test bench. ...
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IPC IPC(8): G01M15/02G01L11/00F17D1/08F17D1/02F17D3/01F17D3/18F17D5/00B08B9/032
CPCB08B9/0321B08B9/0323F17D1/02F17D1/08F17D3/01F17D3/18F17D5/00F17D5/005G01L11/00G01M15/02
Inventor 王文彬周培好许海涛
Owner BEIJING AEROSPACE SANFA HIGH TECH