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Plate-shell type heat exchanger

A heat exchanger, plate-and-shell technology, applied in the field of heat exchange and heat recovery equipment, can solve the problems of the limitation of heating and cooling speed, inconsistent temperature response speed, large thermal expansion difference, etc., to improve the pressure bearing capacity, expand the scope of use, The effect of improving reliability

Active Publication Date: 2006-12-27
GANSU LANPEC TECH +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing plate and shell heat exchanger, there is a large thermal tolerance difference between the structural member with a large cross-section and the thin corrugated plate heat transfer element in the plate bundle, and the temperature response speed is inconsistent. Due to the large temperature fluctuation, There will be a large difference in thermal expansion. Therefore, the heating and cooling speed must be strictly limited during operation. If it is abnormally started and stopped, it will easily cause equipment damage. This defect affects the reliability of heat exchange and heat recovery equipment, and limits the The scope of use of plate and shell heat exchangers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] refer to figure 1 , figure 2 As shown, a plate and shell heat exchanger is mainly composed of a fixed end expansion joint 1, a plate bundle assembly 2, a shell 3, an equipment flange 4, a free end expansion joint 5, a plate side medium outlet connection 6, and a shell side medium Inlet pipe 7, shell-side medium outlet pipe 8, plate-side medium inlet pipe 9, support tube plate 10, etc., using corrugated plates as heat transfer elements; the shell 3 is cylindrical, and there are plate Bundle assembly 2, its connection method can be clamped or welded by the equipment flange 4, the weight of the plate bundle assembly 2 is borne by the shell 3; the lower end of the plate bundle assembly 2 is connected to the fixed end expansion joint 1 through the board-side medium inlet nozzle 9, and the upper end The expansion joint 5 at the free end is connected to the plate-side medium outlet connection pipe 6 to absorb thermal expansion, so as to realize the inflow and outflow of the ...

Embodiment 2

[0028] refer to image 3 As shown, only one side opening 2021 may be provided at the lower end of the board bundle housing 202, and the rest of the structure is the same as that in Embodiment 1.

Embodiment 3

[0030] refer to Figure 4 As shown, the equipment flange 4 may not be provided as required, and the remaining structures are the same as in Embodiment 1.

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Abstract

The invention relates to a board heat exchanger, which uses ripple sheet as heat transmission element, wherein the invention comprises a frame, a board medium entrance connecting tube, and a board medium entrance tube; said frame is arranged with sheet beam, whose lower end via board medium entrance connecting tube is connected to the fixing expanding valve, and upper end via board medium outlet connecting tube is connected to the free expanding valve; two expanding valves absorb the thermal expansion displacements between sheet and frame, sheet beam frame and cylinder frame, without bearing the weight of sheet beam, to improve the reliability of board heat exchanger; the sheet beam frame compresses the layered sheet to bear the pressure difference between mediums, without affecting the flexibility; and the outer frame is cylinder, to bear higher medium pressure; one or two ends of sheet beam frame are arranged with side open; the invention can improve the application of board heat exchanger.

Description

technical field [0001] The invention belongs to the field of heat exchange and heat recovery equipment, and relates to a plate-shell heat exchanger using corrugated plates as heat transfer elements. Background technique [0002] At present, heat exchange equipment using corrugated plates as heat transfer elements represents the mainstream development direction of heat exchange equipment. More and more tubular heat exchange equipment has been or will be replaced by plate heat exchange equipment or plate-shell heat exchangers. substitute. [0003] In the existing plate and shell heat exchanger, there is a large thermal tolerance difference between the structural member with a large cross-section and the thin corrugated plate heat transfer element in the plate bundle, and the temperature response speed is inconsistent. Due to the large temperature fluctuation, There will be a large difference in thermal expansion. Therefore, the heating and cooling speed must be strictly limit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D1/03F28D9/00
Inventor 张延丰宋秉棠
Owner GANSU LANPEC TECH
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