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A shell and tube heat exchanger

A tube-and-tube heat exchanger and heat exchanger technology, applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc. damage and other problems, to avoid adhesion and aggregation, ensure smooth circulation, and avoid structural damage.

Inactive Publication Date: 2016-05-04
中山市斯坦尼化工机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the current tube-and-tube heat exchanger can achieve heat exchange function well, in practical applications, there is often a situation where the temperature difference between the shell wall and the tube wall is large (caused by factors such as the large temperature difference between the two liquids), As a result, the thermal elongation of the shell and the heat exchange tube is significantly different, which will cause a considerable temperature difference stress between the shell and the heat exchange tube and the extrusion destructive force between the structures, resulting in serious damage to the equipment

Method used

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 In the shown embodiment, a tube-and-tube heat exchanger includes a tube side part, a shell side part, and several brackets 1, and the tube side part includes a tube side inlet tube 2, a tube side outlet tube 3, a plurality of The heat exchange tube 4, the shell part includes a horizontal heat exchanger outer shell, the shell side inlet pipe 5, and the shell side outlet pipe 6, and the heat exchanger outer shell is composed of a head 7, a shell head 8, A tube box 9 with openings at both ends is jointly formed, a fixed tube plate 10 is provided between the shell head and the tube box, and a head tube plate 11 is provided between the described head and the tube box. Both ends of the heat exchange tubes are respectively connected to the fixed tube ...

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PUM

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Abstract

The invention discloses a shell-and-tube heat exchanger. By the shell-and-tube heat exchanger, heat exchange between two types of liquid can be implemented effectively; the shell-and-tube heat exchanger has temperature difference compensation ability; and the circumstance that the heat exchanger is damaged due to over large temperature difference stress between a shell and heat exchanging tubes can be avoided. The shell-and-tube heat exchanger comprises a tube pass portion, a shell pass portion and a plurality of supports, wherein the tube pass portion comprises a tube pass inlet tube, a tube pass outlet tube and a plurality of heat exchanging tubes; the shell pass portion comprises a heat exchanger outer shell, a shell pass inlet tube and a shell pass outlet tube; the heat exchanger outer shell consists of an end socket, a shell head and a channel; a fixing tube plate is arranged between the shell head and the channel; an end socket tube plate is arranged between the end socket and the channel; the inside of the shell head is divided into a tube pass flow inlet cavity and a tube pass flow outlet cavity by a tube pass flow separating plate; and the channel is provided with an expansion joint. The shell-and-tube heat exchanger has the advantages that the position of the expansion joint easily deforms, a structural temperature difference compensating effect is achieved by the slidable end socket tube plate, and structural damage caused by over large temperature difference stress is avoided.

Description

technical field [0001] The invention belongs to the technical field of chemical heat exchange, and in particular relates to a shell and tube heat exchanger. Background technique [0002] Heat exchangers are process equipment for heat transfer and are widely used in oil refining, petrochemical industries, and other general chemical industries. Examples include cooling, condensation, heating, evaporation, and waste heat recovery. Due to the diversity of use conditions (corrosion, temperature, pressure, medium, impurities, heat exchange capacity, etc.), heat exchangers also need to have a reasonable structure and form. [0003] Tube-and-tube heat exchanger (tube-and-tube heat exchanger) is one of the most widely used heat transfer equipment at present. It exchanges heat between two liquids in the following way: one liquid flows through the shell and the heat exchange tube , another liquid flows through the heat exchange tube, and the heat exchange is performed inside and outs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/00F28F9/02F28F9/22F28F9/24
Inventor 卢晓丽
Owner 中山市斯坦尼化工机械有限公司
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