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Cable trench sealing device

A technology of sealing device and cable channel, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of no anti-knock function, increase of leakage rate, rubber aging, etc., and achieve reduction of operation action and residence time, and installation process simple effect

Inactive Publication Date: 2014-01-01
GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since all the seals of the device are made of rubber, long-term storage will cause the rubber to age and the leakage rate will increase, and the device has no anti-knock function

Method used

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  • Cable trench sealing device
  • Cable trench sealing device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] figure 1 It is a schematic diagram of the longitudinal section structure of the sealing device of the cable channel of the present invention, figure 2 It is the structural representation of the sealing flange in the present invention, image 3 It is a structural schematic diagram of the protective cover in the present invention. exist Figure 1 ~ Figure 3 Among them, the sealing device of the cable channel of the present invention includes cable bundle I1, protective cover 2, fasteners, sealing flange I6, sealing ring, cable bundle II21, sealing flange II26, and metal sealing ring; the connection relationship is, The end faces of the sealing flange I6 and sealing flange II26 in contact with the wall 27 are equipped with rubber sockets, and the other end faces are equipped with glass sockets; the large end faces of the sealing flange I6 and sealing flange II26 are respectively provided with There is a sealing groove; the sealing groove of the sealing flange 6 is prov...

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Abstract

The invention provides a cable trench sealing device which is used for through connection of cables going in and out of a wall and used for keeping a cable trench in a sealed state after explosive shock waves with certain strength. A protection hood of the sealing device is connected with a sealing flange I provided with a sealing ring through a fastening piece, and the sealing flange I is connected with the inner surface of the wall through a fastening piece. A sealing flange II provided with a sealing ring is connected with the outer surface of the wall through a fastening piece. A cable bunch II is respectively connected with the sealing flange I and the sealing flange II through rubber sockets, and therefore a circuit access is formed. The sealing flange I on the inner surface of the wall and the sealing flange II on the outer surface of the wall form unit redundancy. The connection mode of the sealing device and the wall is simple and reliable, and when the reflection overpressure of explosive shock waves is smaller than or equal to 30Mpa, the cable trench leak rate can be kept to be smaller than or equal to 1*10<-6>Pa.m3 / s.

Description

technical field [0001] The invention belongs to the field of sealing, and in particular relates to a sealing device for a cable passing hole, in particular to a sealing device for a cable channel with an anti-explosion function and a prescribed leakage rate. Background technique [0002] For the detonation test that produces harmful and toxic gases after the explosion, it is required that after the explosion of the explosive, the leakage rate of the detonation and test cable channel passing through the wall should not exceed a certain specified value for a long time, so a cable channel with anti-explosion function is required for a long time Sealing means. [0003] For the sealed transfer of the through-wall cable, the wall-through electrical connector with sealing effect on the market can be selected, which can ensure that the leakage rate of the through-wall cable channel with pressure difference at both ends is not greater than a certain value, but it cannot guarantee tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/02
Inventor 吴越朱宁英
Owner GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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