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Wire penetration piece for high-temperature and high-pressure electrochemical corrosion experiment, and assembling method thereof

A high-temperature, high-pressure, corrosion experiment technology, applied in electrical components, cable entry sealing devices, weather resistance/light resistance/corrosion resistance, etc., can solve the problems of sealing, harsh cooling, high temperature requirements, etc., to ensure stability and improve durability High-temperature performance and the effect of ensuring convenience

Active Publication Date: 2020-10-13
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this cannot actually meet the experimental requirements. In actual experiments, for example, when performing electrochemical tests on zirconium alloys, in order to achieve the best test results, Zr wires should be used as electrode wires to connect zirconium alloy samples, and a flexible wire modification scheme is required. ;Secondly, high-temperature electrochemical experiments of zirconium alloys generally adopt the experimental conditions of 360°C / 18.6MPa, which have higher requirements for temperature, and are required to meet the harsh conditions of sealing and cooling at higher temperatures

Method used

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  • Wire penetration piece for high-temperature and high-pressure electrochemical corrosion experiment, and assembling method thereof
  • Wire penetration piece for high-temperature and high-pressure electrochemical corrosion experiment, and assembling method thereof
  • Wire penetration piece for high-temperature and high-pressure electrochemical corrosion experiment, and assembling method thereof

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Experimental program
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Effect test

Embodiment 1

[0044] Such as Figure 1-Figure 6 As shown, a wire penetration for high temperature and high pressure electrochemical corrosion experiments, including a compression rod 1, a sealing joint 2, a cooling jacket 3 and a threaded adapter;

[0045]The cooling jacket 3 is a hollow structure, the cooling jacket 3 is provided with a cooling water chamber 32, the side wall of the cooling jacket 3 is provided with a cooling water pipe 31 communicating with the cooling water chamber 32, and the lower end of the cooling jacket 3 is threaded. The adapter is sealed and connected to the autoclave. Specifically, the outer wall of the lower end of the cooling jacket 3 is provided with a mounting thread 35 that matches the threaded adapter. The threaded adapter includes a nut 5 and a screw rod 6, and the nut 5 is a hollow structure. The screw rod 6 is a central equal-diameter through hole structure, and the outer wall of the middle part of the screw rod 6 is provided with a protruding platform, ...

Embodiment 2

[0052] Such as Figure 1-Figure 7 As shown, this embodiment is based on Embodiment 1, and also includes a heat-shrinkable tube 40 and a high-temperature-resistant ceramic tube 42 that cooperate with the electrode lead 4, and the high-temperature-resistant ceramic tube 42 is arranged on the electrode lead 4 below the sealing point 41, so The electrode wire 4 is provided with a heat-shrinkable tube 40 above the sealing point 41; the sealing joint 2 is provided with a cooling through hole 20 below the platform 21, and the sealing joint 2 is provided with a sealing channel 23 above the platform 21. The sealed tunnel 23 is filled with a metal sealant, and the metal sealant is a high temperature resistant polymer composite resin.

[0053] In this embodiment, the metal sealant is used to seal the sealing channel 23: the sealing material used is a high temperature and high pressure metal sealant, preferably, a high temperature resistant polymer composite resin structure sealant is sel...

Embodiment 3

[0057] This embodiment is based on Embodiment 1. The cooling jacket 3 is provided with a sealing joint slot 33 below the cooling water cavity 32, and the bottom of the sealing joint 2 is clamped in the sealing joint slot 33, and then the sealing joint 2 The side wall of the lower end is sealed and connected with the cooling water cavity 32; the center of the pressing rod 1 is provided with a wire through hole 12, and the inside of the pressing rod 1 is provided with a groove 13 below the wire through hole 12, and the sealing joint 2 The top is embedded in the groove 13, and the upper end sidewall of the sealing joint 2 is in sealing connection with the compression rod 1.

[0058] The arrangement of the sealing joint groove 33 and the groove 13 can improve the installation stability of the sealing joint 2 .

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Abstract

The invention discloses a wire penetration piece for a high-temperature and high-pressure electrochemical corrosion experiment, and an assembling method thereof. The wire penetration piece comprises apressing rod, a sealing joint, a cooling jacket and a threaded adapter; the cooling jacket is of a hollow structure, a cooling water cavity is formed in the cooling jacket, a cooling water pipe communicated with the cooling water cavity is arranged on the side wall of the cooling jacket, and the lower end of the cooling jacket is hermetically connected with an autoclave through a threaded adapter; the sealing joint is tightly pressed in the cooling water cavity under the action of a pressing rod, the sealing joint is of a hollow structure, a platform is arranged in the sealing joint, and a plurality of wire penetrating through holes for electrode wires to penetrate through are formed in the platform; and the pressing rod is of a hollow structure, the lower end of the pressing rod makes contact with the top of the sealing connector and presses the sealing joint, and the upper end of the pressing rod is connected with the upper end of the cooling jacket in a sealed mode. The penetrationpiece can be used for safely realizing simultaneous penetration of leads with different diameters and different materials under high-temperature and high-pressure conditions.

Description

technical field [0001] The invention relates to the technical field of high-temperature electrochemical testing of metals, in particular to a wire penetration for high-temperature and high-pressure electrochemical corrosion experiments and an assembly method thereof. Background technique [0002] Electrochemical corrosion is one of the important reasons for the local failure of metal materials. The number of direct economic losses caused by electrochemical corrosion is huge every year, and electrochemical corrosion is the main research direction in the field of metal corrosion. Among them, due to the requirements of the environment, such as nuclear reactors, the materials are in high temperature and high pressure water chemical conditions. Under such high temperature conditions, electrochemical corrosion is still a major cause of metal corrosion failure. [0003] At present, autoclaves and supporting electrochemical workstations are widely used in the world to simulate the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/02G01N17/00H02G3/22H02G3/03H02G15/013
CPCG01N17/02G01N17/006H02G3/22H02G3/03H02G15/013
Inventor 廖京京程竹青杨忠波邱绍宇彭倩廖志海
Owner NUCLEAR POWER INSTITUTE OF CHINA
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