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Heat exchange tube fixing device

A technology for fixing devices and heat exchange tubes, applied in the field of heat exchange tubes, can solve the problems of less failure research

Active Publication Date: 2020-02-18
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] 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.

[0028] like Figure 1-3 As shown, a heat exchange tube fixing device includes:

[0029] Side plate 100, the upper and lower ends of the side plate 100 are provided with rectangular through grooves 110, and the middle of the side plate 100 is provided with a circular through hole 120. The purpose is to connect the side plate 100 with other components, while the rectangular through slot 110 is used for positioning the shaft seat.

[0030] The axle seat 200, the axle seat 200 includes the upper axle seat 210 and the lower axle seat 220, the upper axle seat 210 and the lower axle seat 220 are fixed on the side plate 100 through the rectangular through groove 110, and the connection method can be fastened by bolts and nuts 520 way, a...

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PUM

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Abstract

The invention discloses a heat exchange tube fixing device, belongs to the technical field of heat exchange tubes, and provides a heat exchange tube fixing device for a heat exchange tube impact wearexperimental device. The heat exchange tube fixing device comprises side plates, heat exchange tubes, shaft seats, central shafts and locking devices, wherein rectangular through grooves are formed ineach side plate, upper shaft seats and lower shaft seats are arranged in a sliding mode to be connected with the side plates, the height position of the heat exchange tubes is adjusted by adjusting the upper positions and the lower positions of the upper shaft seats and the lower shaft seats, the maximum line contact length between the two heat exchange tubes is guaranteed, and non-round gasketsare adopted, so that it is ensured that the pretightening force exerted by nuts is transmitted to the heat exchange tubes, the contact between every two corresponding gaskets can be avoided, and the heat exchange tube fixing device has the advantages of conveniently adjusting the horizontal height and not influencing experimental operation.

Description

technical field [0001] The invention relates to the technical field of heat exchange tubes, in particular to a heat exchange tube fixing 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 a heat exchange tube fixing device for the impact wear test of the heat exchange tube. This device can ensure the reliable connection of the heat exchange tube during the experiment and can simulate the real collision o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F9/013
CPCF28F9/0131
Inventor 包士毅弥鹏袁巍
Owner ZHEJIANG UNIV OF TECH
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