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Heat exchanger

A heat exchanger and heat exchange tube technology, applied in the direction of heat exchanger type, indirect heat exchanger, heat exchanger sealing device, etc. The effect of leakage phenomenon

Inactive Publication Date: 2014-02-05
JIANGNAN BOILERS & PRESSURE VESSELS ZHANGJIAGANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When manufacturing a shell-and-tube heat exchanger, the diameter of the tube hole on the baffle 15 is larger than the diameter of the tube 18 passing through it to facilitate the passage of the tube 18 and facilitate assembly. There is a large gap between 15 and the pipe 18 passing through it. This gap will cause the heat exchange fluid in the shell 18 to leak directly from the gap and flow around, and it cannot flow ideally according to the set process, that is, a leak occurs. flow
Leakage will cause a decrease in the heat transfer efficiency of the heat exchanger

Method used

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Embodiment Construction

[0025] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

[0026] figure 2 A schematic diagram showing a specific embodiment of the heat exchanger provided by the present invention, image 3 show figure 2 The A-A direction sectional view of the heat exchanger in Figure 4 for figure 2 Partial enlarged view of area B in middle, please also refer to Figure 2 to Figure 4 , the heat exchanger includes a shell 10 , at least one heat exchange tube 8 , at least one rigid baffle 5 and a flexible sealing plate 4 .

[0027] Wherein, the shell 10 defines a shell-side space, and the heat exchange fluid flows in the shell-side space according to a certain process. The heat exchange tube 8 passes through the shell-side space defined by the shell 10, and the fluid in the heat-exchange tube 8 exchanges heat with the heat-exchange fl...

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PUM

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Abstract

The invention provides a heat exchanger comprising a shell, at least one heat exchange tube, at least one rigid baffle plate and a flexible sealing plate. The shell defines a shell stroke space. The heat exchange tubes penetrate through the shell stroke space defined by the shell. The rigid baffle plates are arranged in the shell stroke space in the extending direction of the heat exchange tubes so as to form a flow path set in the shell stroke space. The heat exchange tubes penetrate through the rigid baffle plates. The flexible sealing plates are arranged at the positions where the heat exchange tubes penetrate through the rigid baffle plates and are tightly combined with the sides, with large fluid pressure, of the rigid baffle plates. Each flexible sealing plate is provided with a first through hole. The heat exchange tubes penetrate through the first through holes, and the diameter of the first through holes is smaller than or equal to the outer diameter of the heat exchange tubes. As the flexible sealing plates are arranged, the positions where the heat exchange tubes make contact with the flexible sealing plates can be sealed, then heat exchange fluid is prevented from being leaked out of gaps between the rigid baffle plates and the heat exchange tubes when flowing along the flow path, and the fluid leakage phenomenon is prevented from occurring.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a heat exchanger capable of preventing leakage. Background technique [0002] Shell and tube heat exchanger is a common heat exchange equipment, which is widely used in various processes, such as chemical process, environmental engineering process, and energy recovery and utilization system. [0003] figure 1 A conventional shell and tube heat exchanger is shown with a baffle 15 inside and a plurality of tubes 18 passing through the shell 13 and through the baffle 15 for guiding the internal The heat exchange fluid flows according to a certain flow to improve the heat exchange efficiency of the heat exchanger. When manufacturing a shell-and-tube heat exchanger, the diameter of the tube hole on the baffle 15 is larger than the diameter of the tube 18 passing through it to facilitate the passage of the tube 18 and facilitate assembly. There is a large gap between 15 and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28F11/02
Inventor 张宏
Owner JIANGNAN BOILERS & PRESSURE VESSELS ZHANGJIAGANG