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A pipeline sealing structure capable of realizing high-temperature gas leakage safety protection, pipeline sealing and high-temperature gas leakage method

A technology of safety protection and sealing structure, which is applied in the direction of safety valves, pipes/pipe joints/fittings, pipe components, etc., can solve the problem that the impact load is difficult to control accurately, and achieve the effect of simple structure, low maintenance cost and reliable use

Active Publication Date: 2022-05-20
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In an abnormal high temperature environment, the explosive bolt can sense the external temperature through a temperature sensor and detonate the explosive, or detonate the explosive through an active electrical signal. However, the transportation, storage and use of explosives have great safety risks, and the impact load generated by explosive explosion is difficult to be accurate. control

Method used

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  • A pipeline sealing structure capable of realizing high-temperature gas leakage safety protection, pipeline sealing and high-temperature gas leakage method
  • A pipeline sealing structure capable of realizing high-temperature gas leakage safety protection, pipeline sealing and high-temperature gas leakage method
  • A pipeline sealing structure capable of realizing high-temperature gas leakage safety protection, pipeline sealing and high-temperature gas leakage method

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Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 , figure 2As shown, this embodiment provides a pipeline 1 sealing structure that can realize high-temperature gas leakage safety protection, including a gas leakage channel 2 arranged on the pipeline 1, and the gas leakage channel 2 is used for gas leakage protection when the safe working temperature is exceeded. The memory pipe joint 3, the memory spring 4 and the spring retaining ring 5 are sleeved on the pipeline 1. The memory pipe joint 3 and the memory spring 4 are made of memory materials, and the memory inner diameter is the pipe inner diameter when the memory pipe joint 3 returns to the memorized shape , the memory length of the memory spring 4 is the spring length when the memory spring 4 returns to the memory shape, and the memory restoring force of the memory spring 4 is the driving force when the memory spring 4 returns to the memory shape; The memory inner diameter of the memory pipe joint 3 is slightly smaller than the outer diameter of ...

Embodiment 2

[0036] Different from Embodiment 1, this embodiment provides another sealing structure of pipeline 1 that can realize high-temperature gas leakage safety protection, that is, the memory spring 4 is transformed from a compressed state to a stretched state. Such as image 3 , Figure 4 As shown, it includes the air release channel 2 provided on the pipeline 1, and also includes the memory pipe joint 3, the memory spring 4 and the spring retaining ring 5 which are sleeved on the pipeline 1 in sequence; the memory pipe joint 3 is located at the air release channel 2, The memory inner diameter of the memory pipe joint 3 is smaller than the outer diameter of the pipeline 1 to seal the leak passage 2; the spring retaining ring 5 is fixed on the pipeline 1, and the two ends of the memory spring 4 are fixedly connected to the spring retaining ring 5 and the memory pipe joint 3 respectively, When the memory spring 4 restores the memory shape, it can provide tension. The sum of the memo...

Embodiment 3

[0038] Based on the pipeline 1 sealing structure disclosed in Embodiment 1 and Embodiment 2 that can realize high-temperature gas leakage safety protection, this embodiment provides a method for pipeline 1 sealing and high-temperature gas leakage. Expand the inner diameter of the memory pipe joint 3 to be larger than the outer diameter of the pipeline 1 under variable temperature, set the memory pipe joint 3 on the leak channel 2 on the pipeline 1, and then heat to the austenite phase transition temperature of the memory pipe joint 3 to make the memory The pipe joint 3 shrinks and fastens the pipeline 1 and closes the leak channel 2; however, the heating temperature is lower than the starting temperature of the austenite phase transformation of the memory spring 4, and the memory spring 4 will not restore the memory shape. When the ambient temperature is higher than the critical safe working temperature When the value is higher than the austenite transformation temperature of t...

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Abstract

The invention belongs to the technical field of pipeline high-temperature gas leakage safety protection, and specifically discloses a pipeline sealing structure capable of realizing high-temperature gas leakage safety protection, a pipeline sealing and a high-temperature gas leakage method, and aims to ensure normal sealing of pipelines under working temperature conditions Working, under abnormal high temperature state, it can be deflated for safety protection. The specific solution is that the memory inner diameter of the memory pipe joint is smaller than the outer diameter of the pipeline, so the leak channel can be sealed after heating to ensure the normal operation of the pipeline seal under the working temperature; when abnormal high temperature occurs, the memory length of the memory spring is greater than that of the spring retaining ring The distance from the air release channel has enough recovery stroke, and the memory recovery force is greater than the friction between the memory pipe joint and the pipeline, so the memory spring restores the memory shape to drive the memory pipe joint to move, so that the air release channel is opened to avoid explosions, etc. Danger.

Description

technical field [0001] The invention belongs to the technical field of pipeline high-temperature gas leakage safety protection, and in particular relates to a pipeline connection sealing structure capable of realizing high-temperature gas leakage safety protection, and a method capable of simultaneously realizing pipeline sealing and high-temperature gas leakage. Background technique [0002] With the rapid development of science and technology and the increasingly complex battlefield environment, the miniaturization and environmental adaptability requirements of modern weapons and equipment are becoming increasingly stringent. Especially for the pipeline connection of special gases in modern weaponry, it is necessary to realize the functions of pipeline sealing connection in a small space, and at the same time, it also needs to play a role of safety protection in an abnormally high temperature environment. [0003] In terms of pipeline sealing connection, for example, paten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L29/00F16L55/07F16K17/38
CPCF16L29/00F16L55/07F16K17/38
Inventor 陈捷葛继强杨琴孙明艳张永皞杨川范啓超黄姝珂
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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