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Reboiler

A reboiler and cylinder technology, applied in the field of reboiler, can solve the problems of easy fouling on the boiling side of the heat exchange tube, low heat exchange efficiency of the heat exchange tube, high power and material consumption, etc., and achieve improved boiling heat transfer , reduce operating costs and manufacturing costs, and improve the effect of condensation

Active Publication Date: 2014-07-16
CHINA ELEVENTH CHEM CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat transfer efficiency of the heat transfer tube of the bare tube reboiler is low, and the heat transfer process consumes a lot of power and materials, and the boiling side of the heat transfer tube is prone to fouling. When the fouling layer becomes thicker, the production efficiency will further increase. reduce, or even cause production stoppage accidents

Method used

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0025] Such as figure 1 , figure 2 with image 3 As shown, the present invention provides a reboiler, comprising: a cylinder 6, the two ends of the cylinder respectively have a material inlet and a material outlet, and the cylinder also has a steam inlet on the side of the material outlet , and there is a condensate outlet on the side of the material inlet; a plurality of heat exchange tubes, the plurality of heat exchange tubes are arranged side by side in the cylinder, wherein the heat exchange tubes include a matrix and a porous layer, so The porous layer is located on the inner surface of the base body, the thickness of the porous layer is 0.1-0.5 mm, and the porosity is 30-60%. The outer surface of the middle part of the base body is provided with a plurality of longi...

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Abstract

The invention discloses a reboiler which comprises a cylinder and a plurality of heat exchange tubes, wherein a material inlet and a material outlet are arranged at two ends of the cylinder respectively; a steam inlet is arranged on the cylinder on the side of the material outlet; and a condensate outlet is arranged on the cylinder on the side of the material inlet. According to the reboiler, a porous layer is processed on inner surfaces of heat exchange tube substrates and the porous layer has a heating surface with increased roughness so as to form an artificial evaporating core, so that the heat transfer efficiency of the heat exchange tubes is increased. Meanwhile, longitudinal grooves are processed on the outer surfaces of the heat exchange tube substrates, circular bulges are arranged in the longitudinal grooves, longitudinal nicks are arranged on a teeth part, the thickness of a liquid film is reduced by utilizing a surface tension and then the condensation effect on the exteriors of the heat exchange tubes is improved. According to the invention, the total coefficient of heat transfer of the reboiler is above 3 times of that of a light tube reboiler; anti-scaling capacity of boiling sides of the heat exchange tubes is increased; the dirt deposition rate is less than that of a smooth tube, so that the cleaning period of the reboiler is prolonged.

Description

technical field [0001] The present invention relates to a reboiler. Background technique [0002] The reboiler is a type of heat exchanger used for the bottom product of the vaporization tower, and is widely used in petroleum, chemical, low-temperature refrigeration, power, energy and other industries. The heat exchange tube bundle of the reboiler usually adopts smooth tubes, and this type of reboiler is called a smooth tube reboiler. The heat transfer efficiency of the heat transfer tube of the bare tube reboiler is low, and the heat transfer process consumes a lot of power and materials, and the boiling side of the heat transfer tube is prone to fouling. When the fouling layer becomes thicker, the production efficiency will further increase. reduce, or even cause production shutdown accidents. Contents of the invention [0003] The present invention designs and develops a reboiler. In the present invention, a porous layer is processed on the inner surface of the heat ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01B1/00
Inventor 朱登亮王学生郑建华李石聚汤志强张西民翟东清
Owner CHINA ELEVENTH CHEM CONSTR
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