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Novel fixed tube-sheet heat exchanger

A fixed tube-sheet type heat exchanger technology, applied in the direction of heat exchanger shell, indirect heat exchanger, heat exchanger type, etc., can solve the problems of leakage and corrosion resistance, poor effect, etc., to achieve full utilization of resources, The effect of reducing industrial use costs and reducing economic losses

Inactive Publication Date: 2014-03-26
SHANDONG LANXING WASHING & ANTI CORROSION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned problems of leakage and poor anti-corrosion effect, the present invention provides a new type of fixed tube-sheet heat exchanger, the sealing performance of the connection between the tube sheet and the tube box and the anti-corrosion performance of the tube side and the shell side are excellent. greatly improved

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Embodiment Construction

[0018] In order to facilitate description and understanding of the technical content of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0019] like figure 1 A new type of fixed tube-sheet heat exchanger is shown, which includes a shell 1 , heat transfer tubes 2 , tube boxes 3 , baffles 4 and expansion joints 5 . The tube box 3 is connected to the tube plate flange 11 welded on the tube plate at both ends of the shell 1 through the tube box flange 31; The trapezoidal groove 6 is provided with an annular sealing ring in the trapezoidal groove 6; corresponding to the trapezoidal groove 6, an annular trapezoidal boss 7 is provided on the tube plate flange 11.

[0020] The baffle 4 is arranged in the housing 1, such as figure 2 As shown, the baffle 4 is a disc-shaped structure with a part cut off, and it is D-shaped and the radial length of its incomplete part is 1 / 4 to 1 / 3 of the inner diameter of the...

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Abstract

The invention relates to a novel fixed tube-sheet heat exchanger. The opposite end faces of a tube box flange and a tube plate flange of the heat exchanger are matched in a sealed mode through a trapezoid groove and a trapezoid boss; baffle plates are in a D type, the radial-direction length of incomplete parts of the baffle plates is from one fourth to one third the inner diameter of a shell, and the distance between every two adjacent baffle plates is from one fourth to two fifths the inner diameter of the shell; due to the trapezoid groove type sealing, it can be effectively avoided that tube pass media leak to cause pollution to the environment; due to the arrangement of the baffle plates and the distances, flow velocity of the fluid media in a shell pass can be improved further, the turbulence degree of fluid is enhanced, and the heat exchange effect is improved. In addition, due to the arrangement of an LX-03 coating structure, while corrosion resistance and scouring resistance are improved, and economic losses caused by maintenance and replacement are reduced, resources are saved.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a novel fixed tube-sheet heat exchanger, which belongs to the technical field of cold exchange equipment. Background technique [0002] The fixed tube-sheet heat exchanger consists of tube sheets at both ends, heat transfer tubes and shells. Because of its simple structure, it is widely used. Fixed tube-sheet heat exchanger is an energy-saving equipment that realizes heat transfer between materials. It is a process equipment commonly used in petroleum, chemical, petrochemical, metallurgy, electric power, light industry, food and other industries. In oil refining and chemical plants, heat exchangers account for about 40% of the total equipment and 30%-45% of the total investment. In recent years, with the development of energy-saving technology, the application field has been continuously expanded, and the use of heat exchangers for high-temperature and low-temperature heat energy recovery ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28F11/00F28F9/24F28F19/04
Inventor 姬玉林吴振刘一总许山谢宗仁
Owner SHANDONG LANXING WASHING & ANTI CORROSION
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