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Passive pressure relief method for cable waterproof layer of carrier rocket

A technology of launch vehicle and waterproof layer, which is applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of expansion of waterproof layer, can not eliminate the expansion of waterproof layer, and rupture of the internal structure of cable network, so as to improve reliability and facilitate implementation. quick effect

Pending Publication Date: 2022-07-22
TIANJIN AEROSPACE CHANGZHENG ROCKET MFGCO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tests have shown that after the treated cable net is placed in a negative pressure environment, the waterproof layer will still swell, which cannot eliminate the expansion of the waterproof layer. There is a risk of internal structure rupture or short circuit

Method used

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  • Passive pressure relief method for cable waterproof layer of carrier rocket
  • Passive pressure relief method for cable waterproof layer of carrier rocket
  • Passive pressure relief method for cable waterproof layer of carrier rocket

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Embodiment Construction

[0037] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0038] In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, 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 The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be constru...

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Abstract

The invention provides a passive pressure relief method for a cable waterproof layer of a carrier rocket. The passive pressure relief method comprises the following steps: S1, fixing a cable network; s2, passive pressure relief positioning; s3, calculating a pressure relief area; s4, manufacturing a passive pressure relief piece; and S5, a passive pressure relief piece is installed. According to the method, the waterproof structure is reasonably designed, the implementation method of the waterproof structure is determined, passive pressure relief structure parameters are determined according to the internal and external pressure balance requirement of the cable network and the characteristics of the waterproof structure, the design of the waterproof structure of the new-generation low-temperature rocket is successfully completed by innovating the process, and the implementation effect completely meets the flight environment requirement of the rocket.

Description

technical field [0001] The invention belongs to the field of pressure relief, in particular to a passive pressure relief method for a waterproof layer of a launch vehicle cable. Background technique [0002] The new generation of cryogenic launch vehicles under development is mainly launched at the Wenchang launch site in Hainan, my country. The geographical characteristics of the launch site's humid climate and heavy rainfall, as well as the product characteristics that the surface temperature of the rocket body drops during and after the filling of low-temperature propellant, cause the air around the rocket body to liquefy to form water flow, and the rocket body structure must have good water resistance. ability. The cable is the nerve vein of the launch vehicle, which undertakes various tasks such as signal transmission, power supply, and attitude control. Therefore, isolating external water vapor and preventing condensed water from entering the cable is an important li...

Claims

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Application Information

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IPC IPC(8): H01B7/282H01B7/36B21D22/02G06F30/17G06F30/15G06F113/16
CPCH01B7/2825H01B7/365B21D22/02G06F30/17G06F30/15G06F2113/16
Inventor 赵鸿飞徐寅崔蕴黄小春王津郭锐刘洋国冰杜正勇钱伟韩磊崔鑫李强刘野张粤萌陈瑞申定贤牛淼曹京京任立民熊占兵
Owner TIANJIN AEROSPACE CHANGZHENG ROCKET MFGCO
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