Multi-flow spiral winding pipe type efficient heat exchanger

A tubular heat exchanger, spiral winding technology, applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc., can solve the problem of damage to heat exchange tubes, low utilization of tube sheets, and easy vibration in the transition section and other problems, to achieve the effect of improving service life, reducing unsupported span, and simple structure

Inactive Publication Date: 2019-11-15
江苏中圣压力容器装备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low utilization rate of the tube sheet of the existing multi-stream spiral wound tube heat exchanger, and easy vibration of the transition section to cause damage to the heat exchange tube, and to provide a multi-layer tube box structure on the tube sheet. A multi-flow helically wound tube heat exchanger that forms a concentric tube arrangement and is equipped with a sleeve-type anti-vibration support device at the transition section of the tube bundle

Method used

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  • Multi-flow spiral winding pipe type efficient heat exchanger
  • Multi-flow spiral winding pipe type efficient heat exchanger
  • Multi-flow spiral winding pipe type efficient heat exchanger

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Such as Figure 5-Figure 8 As shown, a multi-stream spiral wound tube heat exchanger includes a shell 8, and the two ends of the shell 8 are respectively provided with axial tube sheets 3, and are installed between the two axial tube sheets 3 There is a central cylinder 7 on which multilayer heat exchange tubes 4 are wound in a helical shape to form a winding section, and the helical directions of two adjacent layers of heat exchange tubes 4 are opposite; the two ends of each heat exchange tube 4 are respectively connected to the corresponding The tube holes on the axial tube sheet 3 are connected, and the heat exchange tube is a transition section from the winding section to the axial tube sheet; the upper and lower parts of the shell 8 are respectively provided with a shell-side nozzle corresponding to the transition section. 11. Outer tube boxes 2 are respectively provided at both ends of the shell 8. The outer tube box 2 is composed of a cylinder and an oval head. T...

Embodiment 2

[0050] On the basis of the multi-stream spirally wound tube heat exchanger in Embodiment 1, the shapes of the inner tube box 1 and the outer tube box 2 are adjusted. Such as Figure 9 As shown, the outer tube box 2 is composed of a cylinder and a conical head, and the top of the outer tube box 2 is provided with an axial outer tube pass nozzle 13; the inner tube box 1 is composed of a cylinder and an elliptical head, and the inner tube The box 1 is placed in the outer tube box 2, and the inner tube box 1 is provided with a radial inner tube pass nozzle 12, and the radial tube pass nozzle passes through the side wall of the outer tube box 2. The outer tube box 2 is coaxial with the inner tube box 1 so as to form two independent space pipe layout areas on the axial tube plate 3, to the tube layout area inside the outer tube box 2 and the tube layout area formed by the inner and outer tube boxes Different process fluids are fed into the tubes, and the process fluids enter the he...

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Abstract

The invention discloses a multi-flow spiral winding pipe type heat exchanger. The heat exchanger comprises a shell, wherein pipe plates are arranged at the two ends of the shell, a central cylinder isarranged between the two pipe plates, a plurality of layers of heat exchange tubes are wound around the center cylinder in a spiral shape to form a winding section, the two ends of each heat exchangepipe communicate with pipe holes of the pipe plates, and a transition section is arranged on the heat exchange tubes from the winding section to axial pipe plates; an outer pipe box is arranged at the two ends of the shell, at least one inner pipe box coaxial with the outer pipe box is arranged in the outer pipe box, and two pipe distribution areas or more are formed on the axial pipe plates; theouter pipe box and the inner pipe boxes are provided with pipe pass openings for introducing process fluid; and at least one anti-vibration supporting assembly is arranged on transition section heatexchange pipe bundles, each anti-vibration supporting assembly comprises a plurality of sleeve pipes, the sleeve pipes are arranged on the outer sides of the heat exchange pipes in a sleeving mode, and the adjacent sleeves in the same anti-vibration supporting assembly are fixedly connected. According to the heat exchanger, the size of the pipe plates can be reduced, the utilization rate of the pipe plates is improved, the anti-vibration performance is good, and the service life of the heat exchanger can be remarkably prolonged.

Description

technical field [0001] The present invention relates to a multi-stream spirally wound tube heat exchanger, in particular to a tube arrangement with more than two concentric circular tube layout areas on the same tube sheet, and a transition section of the tube bundle is provided with Multi-flow spiral wound tube heat exchanger with casing type anti-vibration support device. Background technique [0002] At present, the shell-and-tube heat exchangers used for heat exchange in various media are mostly spiral-wound tube heat exchangers. In the space between the central cylinder and the shell of the spirally wound tube heat exchanger, the heat exchange tubes are alternately wound in the shape of a helix to form its main part. The helical direction of the adjacent two layers of spiral heat exchange tubes is opposite. This part is called It is a winding section, and the part between the heat exchange tube bundle from the winding section to the tube sheet is called the transition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/02F28F9/013
CPCF28D7/02F28F9/013
Inventor 郭宏新高原原李晖刘丰李奇江郡
Owner 江苏中圣压力容器装备制造有限公司
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