A pressure vessel sensor lead wire sealing device

A sensor lead wire and sealing device technology, applied in pressure vessels, engine seals, fixed-capacity gas storage tanks, etc., can solve the problems of lead wire damage, damage to the overall originality of the sensor, and inconvenient centralized wiring, etc., to achieve a simple structure Effect

Active Publication Date: 2017-05-03
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of concentrating the lead wires needs to concentrate the wires of the sensor to the outlet along a certain channel, and it is often inconvenient to concentrate the wiring in a structure with a more complex flow channel
Not only will it cause damage to the lead wires during the installation process, but some wires also need to cross the flow field, causing the lead wires of the sensor to be pulled off during the later test.
If the glue-filled sealing head structure is used, it is often necessary to cut off the sensor lead and reconnect it, which damages the overall originality of the sensor, and the sensor cannot be reused

Method used

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  • A pressure vessel sensor lead wire sealing device
  • A pressure vessel sensor lead wire sealing device
  • A pressure vessel sensor lead wire sealing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 A pressure vessel sensor lead wire sealing device shown includes a lead wire tube 2 for leading the lead wire out of the container, and a sealing disc 9 pressed against the nozzle of the lead wire tube 2 by a fixing member 3. Since one end of the lead wire tube is provided with a The BNC connector has a large diameter, and the sealing disc 9 is set as two separate structures of the outer disc 91 and the inner disc 92, and the inner disc is located in the outer disc to facilitate the extraction of the BNC connector. It is convenient to fix the lead wire, set the lead wire sealing ring 6, and set a plurality of lead wire holes 93 between the outer disk 91 and the inner disk 92, put the lead wire sealing ring 6 in the lead wire hole 93, ensure the stability of the lead wire sealing ring 6, and Ensure the stability of the leads. The lead wire sealing ring 6 uses the lead wire fixing hole 61 to fix the lead wire. In order to facilitate the introduction or c...

Embodiment 2

[0032] refer to figure 1 , figure 2 with image 3 In the shown pressure vessel sensor lead wire sealing device, in order to further enhance the stability of the lead wire sealing ring structure and enhance the leak-proof performance of the lead wire hole, this embodiment is optimized on the basis of the above-mentioned embodiments. The lead wire seal The section of circle 6 becomes " I " font. The lead hole 93 between the outer disc 91 and the inner disc 92 fixes the lead wire sealing ring 6 from the horizontal plane of the sealing disc; 92 is stuck, that is, the two ends of the lead wire sealing ring 6 further fix the lead wire sealing ring 6 from the vertical surface of the sealing disc to ensure the stability of its structure. Its specifications at both ends of the lead wire sealing ring 6 are greater than the lead wire hole 93, which can improve the reliability of sealing the lead wire hole 93 and improve the leak-proof capability.

[0033] In actual operation, the th...

Embodiment 3

[0035] refer to figure 1 In the shown pressure vessel sensor lead wire sealing device, in order to further enhance the leak-proof ability and pressure-bearing ability, this embodiment is optimized on the basis of the above-mentioned embodiment, and the upper and lower surfaces of the sealing plate 9 are respectively Overlap the first pressure plate sealing gasket and the second pressure plate sealing gasket to enhance the sealing ability of the gap holes connected between the lead holes, and the more the number of pressure plate sealing gaskets, the greater the pressure bearing capacity. stronger.

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PUM

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Abstract

The invention discloses a sealing device for the lead wire of a pressure vessel sensor, which comprises a lead tube and a sealing disc pressed against the mouth of the lead tube by a fixing piece. The sealing disc includes an outer disc and an inner disc, and there is a A plurality of lead wire holes, the lead wire sealing ring is provided in the lead wire hole, the lead wire sealing ring is provided with a lead wire fixing hole, and the side wall of the lead wire fixing hole is provided with an opening for leading the lead wire into the lead wire fixing hole. The sealing disk is overlapped with a pressure disk sealing gasket that seals the gap between the outer disk and the inner disk, and a fastening device is connected between the sealing disk and the pressure disk sealing gasket, which is convenient for lead wires during installation. Will damage the lead wire, guarantee the originality and reusability of the sensor.

Description

technical field [0001] The invention relates to the field of sealing devices for pressure vessel sensor lead wires, in particular to a device for leading the measurement line of a sensor out of a pressure vessel during mechanical measurement of a pressure vessel. Background technique [0002] In the flow-induced vibration test of the internal components of the nuclear reactor, the heat transfer tube of the steam generator, and the hydraulic pressure test of the pressure vessel, a large number of test sensors are arranged inside the pressure vessel. In order to lead the measurement wires of these sensors out of the pressure vessel while sealing the pressure vessel without damaging the signal transmission of the sensors, a lead wire sealing device is needed. [0003] Test sensors include waterproof accelerometer sensors and pulsating pressure sensors, etc., which are generally produced by sensor manufacturers into an integral structure. In order to seal the inside of the sens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/06F16J13/00
Inventor 席志德李天勇卢琰琰孙磊马建中胡俊赖姜
Owner NUCLEAR POWER INSTITUTE OF CHINA
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