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Radiating tube and tube plate connecting structure of tube type heat exchanger

A tube-and-tube heat exchanger and connection structure technology, which is applied to heat exchanger shells, heat exchange equipment, lighting and heating equipment, etc. Ability to withstand deformation and pulling force, avoid leakage, and improve the effect of work reliability

Inactive Publication Date: 2015-01-07
无锡纳润特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main problem of the tube-and-tube radiator is that the heat-dissipating tube is inserted into the tube hole and sealed and connected by welding. Because there is a large temperature difference when the heat exchanger is working, the tube plate and the heat-dissipating tube are deformed due to their respective deformations. The large pull-off force leads to serious deformation of the weld, leakage of heat transfer fluid, and even the two fall off

Method used

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  • Radiating tube and tube plate connecting structure of tube type heat exchanger
  • Radiating tube and tube plate connecting structure of tube type heat exchanger
  • Radiating tube and tube plate connecting structure of tube type heat exchanger

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Embodiment Construction

[0013] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0014] Such as figure 1 , image 3 As shown, the connection structure between the heat dissipation tube and the tube plate of the tube-and-tube heat exchanger in this embodiment includes the tube plate 1 and the heat dissipation tube 2, and the end of the heat dissipation tube 2 is inserted into the tube hole 11 of the tube plate 1;

[0015] Such as figure 2 , Figure 4 As shown, the tube plate 1 has an annular groove 12 located at the periphery of the tube hole 11, and the end of the heat dissipation tube 2 has a thickened flange 21, and the thickened flange 21 has an outwardly folded annular flange 22, The ring flange 22 is reversely buckled in the ring groove 12 .

[0016] The invention adopts the back-button welding connection mode of the tube plate and the heat dissipation pipe, improves the ability to withstand deformation and p...

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PUM

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Abstract

The invention relates to a radiating tube and tube plate connecting structure of a tube type heat exchanger. The radiating tube and tube plate connecting structure of the tube type heat exchanger comprises a tube plate and a radiating tube, the end of the radiating tube is inserted in a tube hole of the tube plate, an annular groove located at the circumference of the tube hole is arranged on the tube plate, the end of the radiating tube is provided with a thickened flange, the thickened flange is provided with an annular flange which is folded towards the outside, and the annular flange is reversely buckled in the annular groove. The radiating tube and tube plate connecting structure of the tube type heat exchanger uses the reverse buckling type tube plate and radiating tube welding mode, the deformation pull bearing ability is improved, the heat transfer medium leakage due to welding crack is avoided, and the working reliability of a radiator is improved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a shell and tube heat exchanger. Background technique [0002] In the chemical production process, heat exchangers are widely used, and there are many types and structures, among which shell and tube heat exchangers are the main ones. The shell and tube heat exchanger is mainly composed of a tube body, a head, a heat dissipation tube and a tube sheet, and the ends of multiple heat dissipation pipes are installed in the tube holes of the tube sheet. At present, the main problem of the tube-and-tube radiator is that the heat-dissipating tube is inserted into the tube hole and sealed and connected by welding. Because there is a large temperature difference when the heat exchanger is working, the tube plate and the heat-dissipating tube are deformed due to their respective deformations. Larger pull-off force leads to serious deformation of the weld, leakage of heat transfe...

Claims

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Application Information

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IPC IPC(8): F28F9/18
Inventor 宋小林
Owner 无锡纳润特科技有限公司
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