A liquid rocket engine exhaust blowing treatment device and method

A liquid rocket and processing device technology, applied in rocket engine devices, machines/engines, jet propulsion devices, etc., can solve problems such as difficult to handle safely, health and safety hazards of operators, etc., and achieve easy replacement, small and compact structure, and simple operation. Effect

Active Publication Date: 2021-11-02
XIAN AEROSPACE PROPULSION INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the liquid rocket engine is difficult to handle safely and is likely to cause harm to the health and safety of operators during the process of blowing off the remaining toxic propellant in the inner cavity after the test run, and provides a liquid rocket engine exhaust Blowing treatment device and method

Method used

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  • A liquid rocket engine exhaust blowing treatment device and method
  • A liquid rocket engine exhaust blowing treatment device and method
  • A liquid rocket engine exhaust blowing treatment device and method

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Embodiment Construction

[0043] The technical solution of the invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0044]The invention provides a liquid rocket engine discharge blow-off device, which includes a nozzle 2, a discharge blow-off tool 9, and a recycling blow-off system.

[0045] Such as figure 1 As mentioned above, the nozzle 2 is fixed on the engine housing 1 where it needs to be discharged and blown off. A sealing plug 7 is installed in the nozzle 2. The front end of the sealing plug 7 is threadedly connected to the inner wall of the nozzle 2, and the rear end is provided with a There is an interface; due to the different diameters of the nozzle 2, the sealing plug 7 is composed of two cylinders with different radii, the radius of the rear end is larger than that of the front end, and the sealing plug 7 occupies the interface pipe section 21 and the The straight pipe section 22 and the front end of the sealing plug 7 are connected wit...

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Abstract

The invention relates to a liquid rocket engine discharge blow-off treatment device and method. The device provided by the invention includes a nozzle, a discharge blow-off connection tool, and a recycling blow-off system; Sealing, tighten the nut of the first jacket; during the blowing of the propellant discharge, first remove the plug, then connect the discharge blowing connection tooling and recovery blowing system, use the central rod to unscrew the sealing plug, and pass through the two-position three-way The valve connects the nozzle to the recovery storage tank and the blow-off cylinder respectively. After the propellant is discharged and blown off, use the central rod to screw the sealing plug into the nozzle, disassemble the first outer casing nut, blow off the discharge tooling and recover the blow off system, and install the plug and the first outer casing nut. The device and method provided by the invention can completely seal the propellant in the closed pipeline, which solves the problem that it is difficult to safely handle the residual toxic propellant in the inner cavity of the liquid rocket engine after the test run.

Description

technical field [0001] The invention relates to a rocket engine exhaust blowing device and a using method thereof, in particular to a liquid rocket engine exhaust blowing treatment device and an exhaust blowing treatment method thereof. Background technique [0002] Liquid rockets use dinitrogen tetroxide / unsymmetrical dimethylhydrazine as a propellant, which is toxic and corrosive. After the normal temperature liquid rocket is tested, there is residual propellant in the engine cavity, which needs to be released. The engine is blown out. Generally, the residual propellant is released by dismantling the sensor installed on the engine. The propellant will start to leak during the dismantling process, and the toxic propellant will be sprayed and volatilized around the operator during the dismantling process. Even if the operator takes strict protection, it is very difficult prone to danger. [0003] Therefore, in the process of discharging and blowing off the propellant after...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/60
CPCF02K9/60
Inventor 黄晓磊王鹏武刘文超张琳郭维何宏疆管杰
Owner XIAN AEROSPACE PROPULSION INST
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