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Impact wear experiment device for heat exchange tube

An experimental device and heat exchange tube technology, applied in the field of heat exchange tubes, can solve the problems of less failure research

Active Publication Date: 2020-02-28
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, cases of contact damage to heat exchange tubes have been gradually discovered, and there are few studies on such failures

Method used

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  • Impact wear experiment device for heat exchange tube
  • Impact wear experiment device for heat exchange tube
  • Impact wear experiment device for heat exchange tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the invention is not limited to these embodiments.

[0026] Such as Figure 1-3 As shown, a heat exchange tube impact wear test device includes:

[0027] The base 100 is provided with a plurality of positioning holes 110, and the base 100 plays a role of supporting and positioning.

[0028] Reciprocating device 200, reciprocating device 200 is movably connected with base plate, reciprocating device 200 comprises cylinder 210, and cylinder 210 one side is provided with piston rod 211, and reciprocating device 200 mainly drives piston rod 211 to do reciprocating motion by cylinder 210, and then The piston rod 211 can drive the free end 310 of the heat exchange tube impact device 300 to reciprocate together, so that the heat exchange tube 330 on the free end 310 collides with the heat...

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Abstract

The invention discloses an impact wear experiment device for a heat exchange tube, belongs to the technical field of heat exchange tubes, and solves the problem that exploration cannot be performed due to contact wear of the heat exchange tube of an existing nuclear power steam generator. The impact wear experiment device comprises a base, a reciprocating motion device and a heat exchange tube impact device, the reciprocating motion device comprises a cylinder and a piston rod arranged at one side of the cylinder, the heat exchange tube impact device is provided with a free end and a fixed end, heat exchange tubes are arranged at the fixed end and the free end respectively, the piston rod drives the free end to reciprocate so as to bump the two heat exchange tubes continuously, and a displacement sensor is arranged in the lateral side of the piston rod, a tension and pressure sensor is arranged between the piston rod and the free end, displacement of the piston rod and the impact forcebetween the heat exchange tubes are measured and transmitted out correspondingly, and finally analysis is made to complete impact wear experiment of the heat exchange tubes.

Description

technical field [0001] The invention relates to the technical field of heat exchange tubes, in particular to a heat exchange tube impact wear test device. Background technique [0002] Heat exchange tubes are an indispensable part of nuclear power steam generators, which perform heat exchange functions at specified temperatures, pressures, and different media. In nuclear power plants, flow-induced vibrations cause U-shaped tubes to vibrate in-plane in the bend area, resulting in various frictional couplings of heat exchange tubes during operation, including impact wear, fretting wear, and sliding wear. In recent years, cases of contact damage to heat exchange tubes have been gradually discovered, and there are few studies on such failures. For this reason, we designed such a device to study the failure mechanism of heat exchange tubes. It is of great significance to ensure the safe operation of nuclear power plants. Contents of the invention [0003] The present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/36G01N3/06G01N3/02
CPCG01N3/36G01N3/06G01N3/02G01N2203/0005
Inventor 包士毅弥鹏袁巍
Owner ZHEJIANG UNIV OF TECH
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