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Skid-mounted rocket tank pressure annunciator flight vacuum environment simulator

A technology of vacuum environment simulation and pressure signal, applied in the testing of measuring devices, instruments, machines/structural components, etc., can solve the problems of lack of mature experience, etc., to achieve improved maintainability, good vacuum sealing effect, and enhanced effect. Effect

Inactive Publication Date: 2014-10-29
BEIJING INST OF AEROSPACE TESTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development and research work of this kind of simulation device has not been carried out in China, and there is no mature experience to learn from

Method used

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  • Skid-mounted rocket tank pressure annunciator flight vacuum environment simulator
  • Skid-mounted rocket tank pressure annunciator flight vacuum environment simulator
  • Skid-mounted rocket tank pressure annunciator flight vacuum environment simulator

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Embodiment Construction

[0016] like figure 1 As shown, the present invention is mainly composed of a vacuum chamber door 1, an O-ring seal 2, a vacuum chamber 3, a box pressure conduit 4, a manual valve 6, a cable sealing and insulating structure 7, a cable wire 8, a vacuum gauge 9, a candle holder 10, and a vacuum valve. 11. It is composed of metal hose 12 and vacuum pump 13. The vacuum chamber door 1, O-ring 2, vacuum chamber 3, manual valve 6, and vacuum valve 11 form a sealed space for maintaining the vacuum environment and accommodating equipment such as the pressure signal device 5 and the candle holder 10; the connection of the box pressure conduit 4 requires The propellant storage tank and the pressure signaler 5 for controlling the pressure are made of stainless steel pipes with a diameter of 8mm and a wall thickness of 1mm, and are connected with the nozzle welded on the wall of the vacuum chamber 3 by threads; the manual valve 6 starts when the atmospheric pressure in the vacuum chamber 3 ...

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Abstract

The invention discloses a skid-mounted rocket tank pressure annunciator flight vacuum environment simulator which is composed of a vacuum chamber door, a vacuum chamber, a vacuum gauge, a candlestick, a vacuum pump, a platform dolly and the like. The simulator is used for an upper stage rocket tank pressure annunciator and simulating a vacuum condition for the upper stage rocket tank pressure annunciator operating outside the earth's atmosphere. According to the invention, circuit insulation and sealing problems are solved. When the simulator operates, vacuum degree inside the vacuum chamber is better than 1 Pa. The pressure annunciator has a simple installation structure and is convenient to dismount and maintain. Vacuum cement and aluminium bars are used for sealing of pressure annunciator cables passing through the wall of the vacuum chamber. The structure is simple and easy to realize and is good in vacuum seal effect and low in cost. By integrating the vacuum chamber and the vacuum pump into one platform dolly, the structure of the system is compact and the vacuum-pumping effect of the vacuum chamber is enhanced. In addition, the integral body is convenient to move, and maintainability of the system is improved.

Description

technical field [0001] The invention relates to a vacuum environment simulation device, which is used for installing a rocket tank pressure signal device in a ground test, and simulates the vacuum environment where the pressure signal device is located during the flight of the upper stage rocket, and is mainly used for the upper stage rocket propellant pressurization The ground test of the conveying system belongs to the simulation test technology of the upper stage rocket flight environment. Background technique [0002] Aiming at the X sub-stage propellant storage tank of my country's CZ-XX series of launch vehicles, a cold helium pressurization system composed of a solenoid valve and an orifice plate was developed to replace the cold helium pressure regulator. The system senses the pressure difference between the propellant tank and the external environment by the pressure signal device, and uses the change of the difference as the basis for the adjustment of the booster ...

Claims

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Application Information

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IPC IPC(8): G01M99/00
Inventor 赵耀中尹奇志刘屹瞿骞刘瑞敏王占林梁怀喜温鹏飞刘兵王璐郑然
Owner BEIJING INST OF AEROSPACE TESTING TECH
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