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Tube header of tube-type heat exchanger

A tube-and-tube heat exchanger and tube box technology, which is applied to heat exchanger shells, heat exchange equipment, lighting and heating equipment, etc., can solve the problems of troublesome assembly and disassembly, long manufacturing cycle, structural cracking, etc., and achieve easy maintenance. Good operation and sealing performance, and the effect of reducing stress

Active Publication Date: 2014-11-12
THE CHALLENGE PETROCHEM MACHINERY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007]Second, a high level of welding is required
[0009]Third, the structure is huge
[0010] Fourth, the structure is often cracked, unsafe and difficult to maintain
[0011] In summary, the complex or huge heat exchanger structure has a long manufacturing cycle, high production costs, troublesome assembly and disassembly, and inconvenient maintenance

Method used

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  • Tube header of tube-type heat exchanger
  • Tube header of tube-type heat exchanger
  • Tube header of tube-type heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] One of the specific implementations of the tube box of a tube-and-tube heat exchanger of the present invention, such as figure 1 , image 3 and Figure 4 As shown, it includes a tube box section 1, a tube box end cover 2, a sealing structure for sealing the tube box section 1 and the tube box end cover 2, and a sealing structure arranged on the tube box section 1 Take over 4. The above technical features are the same as the structure of the shell and tube heat exchanger tube box in the prior art. The tube box of the tube-and-tube heat exchanger also has other basic structures of the tube-and-tube heat exchanger in the prior art, such as partitions and the like. The improvement of the present invention is that the tube box section 1 is a tapered tube box section 1, and the tapered tube box section 1 is integrally formed. The so-called tapered tube box section 1 means that the diameter of the tube box section 1 connected to the tube sheet end to the tube box section 1...

Embodiment 2

[0056] The second embodiment of the pipe box of a tube-and-tube heat exchanger of the present invention is as follows: figure 2 As shown, the main technical solutions of this embodiment are the same as those of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. The difference between this embodiment and Embodiment 1 is that the tapered pipe box section 1 includes a cylindrical section part and a reverse flange 6 part, and the cylindrical section part and the reverse flange 6 part pass through Solder connection. The tapered pipe box section 1 of this embodiment forms a contraction opening structure through the reverse flange 6, which can greatly reduce the force between the pipe box end cover 2 and the stud nut 5, and at the same time It has the characteristics of simple structure, good sealing performance, and provides a large enough space for material flow, and it is also convenient for maintenance p...

Embodiment 3

[0058] The third specific embodiment of the pipe box of a tube-and-tube heat exchanger of the present invention, the main technical solution of this embodiment is the same as that of embodiment 1, and the features not explained in this embodiment are explained in embodiment 1 , which will not be repeated here. The difference between this embodiment and Embodiment 1 is that the tube box barrel section 1 is a gradually expanding tube box barrel section 1, and the so-called gradually expanding tube box barrel section 1 is the end of the tube box barrel section 1 connected to the tube plate The diameter of the pipe box section 1 connected to the end cover gradually changes from small to large.

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PUM

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Abstract

A tube header of a tube-type heat exchanger comprises a tube header section, a tube header end closure, a sealing structure for sealing the tube header section and the tube header end closure, and an adapter tube arranged on the tube header section, wherein the tube header section is a gradually-shrinkable or gradually-expandable tube header section. The gradually-shrinkable or gradually-expandable tube header section changes the pressure bearing capability of a cylindrical section with a constant diameter in the prior art, and especially, the gradually-shrinkable tube header section can greatly reduce the stress between the tube header end closure and a stud nut; the tube header of the tube-type heat exchanger has the characteristics of simple structure, good sealing performance and capability of supplying a big enough space for the flowing of materials; and meanwhile a maintenance staff can maintain the tube header of the tube-type heat exchanger conveniently.

Description

technical field [0001] The present invention relates to the tube-and-tube heat exchanger technology in equipment engineering, in particular to a tube-and-tube heat exchanger specially used for heat exchange and energy-saving equipment in petroleum refining and chemical industry, coal chemical industry, chemical fertilizer industry, air conditioning, air cooling, and electric power facilities. Heat exchanger tube box. Background technique [0002] In the prior art, the tube-and-tube heat exchanger is the most widely used heat exchanger, widely used in the fields of chemical industry, petroleum, medicine, food, light industry, metallurgy, coking, etc. Convective heat transfer of "steam-steam" and "steam-liquid" heat exchange, as well as heat exchange and condensation processes such as steam condensation and liquid evaporation heat transfer. [0003] The tube-and-tube heat exchanger in the prior art includes a tube box section, a tube box end cover, a sealing structure for sea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F9/02
Inventor 陈孙艺
Owner THE CHALLENGE PETROCHEM MACHINERY CORP