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A tube bundle fitting method for a two-fold serpentine tube high-pressure heater

A high-pressure heater, serpentine tube technology, applied in fixed tubular conduit components, indirect heat exchangers, heat exchanger types, etc., to ensure the quality of welds and reduce the difficulty of welding

Active Publication Date: 2021-08-03
DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is: the present invention provides a tube bundle fitting method for a two-fold serpentine tube high-pressure heater. Interference between angle steel, steel plate and other pre-welded parts inside the medium heater shell and tube bundles and headers

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  • A tube bundle fitting method for a two-fold serpentine tube high-pressure heater
  • A tube bundle fitting method for a two-fold serpentine tube high-pressure heater
  • A tube bundle fitting method for a two-fold serpentine tube high-pressure heater

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0026] Such as figure 1 As shown, since the shell of the two-fold serpentine tube high-pressure heater is welded with pre-welded parts such as angle steel and steel plate, and the side of the header is welded with cladding and other parts, if the conventional heat exchanger is used in the package method, The tube bundle and header will interfere with the angle steel, steel plate, etc. inside the shell, and it is impossible to realize the package. Therefore, the applicant needs to design a process that can be used for the tube bundle package of the two-fold serpentine tube header-type high-pressure heater.

[0027] In order to solve the above technical problems, the present invention proposes a tube bundle fitting method for a two-fold serpentine tube high-pressure heater, which specifically includes the following steps:

[0028] S1: Divide the shell of the h...

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Abstract

The invention relates to the technical field of pressure vessel manufacturing, and discloses a tube bundle fitting method for a two-fold serpentine tube high-pressure heater, which includes the following steps: S1: press the shell of the heater to the header end of the serpentine tube and the tube bundle The position corresponding to the end set is divided into two parts: shell a and shell b; S2: Fit shell a from the outer end of the header end to the middle of it, and fix the position of shell a; S3: Put shell a and the collector The box end is connected into an assembly; S4: take the assembly connected in step S3 as the fulcrum, fit the shell b from the outer end of the tube bundle end to the middle of it, and form a ring seam between the shell a and the shell b; S5: assemble The circular seam between welded shell a and shell b; the shell passing through the heater is divided into two sections of shell a and shell b corresponding to the header end and tube bundle end respectively, and shell a and shell b are separated from the outside respectively. After the end and the tube bundle are assembled, the two are welded together, which solves the problem that the angle steel, steel plate and other pre-welded parts inside the heater shell interfere with the tube bundle and header during the serpentine tube bundle assembly process.

Description

technical field [0001] The invention relates to the technical field of pressure vessel manufacturing, in particular to a tube bundle fitting method for a two-fold serpentine tube high-pressure heater. Background technique [0002] The serpentine tube header high-pressure heater for a pressure vessel manufactured by our company has a two-fold structure. The two headers are located at the same end, and one of the headers is located at the eccentric position of the heater shell. In the manufacturing process of conventional heat exchangers, the shell and the tube bundle are generally assembled and welded into components separately, and then integrated as a whole. As for the two-fold serpentine tube header-type high-pressure heater, this overall package method has the following problems: because the inside of the heater shell is welded with pre-welded parts such as angle steel and steel plate, and the side of the header is welded with a cladding For example, when using the conve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/08F28F9/013F28F9/18
CPCF28D7/082F28F9/0137F28F9/18
Inventor 李巧云赵英权黄军奚旭罗永飞
Owner DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
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