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Descaling device and descaling method of shell-and-tube heat exchanger

A tube-and-tube heat exchanger and heat exchanger technology, applied in the field of descaling, can solve the problems of difficult descaling process and poor effect

Inactive Publication Date: 2020-08-25
CHINA ENERGY GRP NINGXIA COAL IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a descaling device for shell and tube heat exchangers to solve the problems of difficult descaling process and poor effect

Method used

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  • Descaling device and descaling method of shell-and-tube heat exchanger

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Embodiment Construction

[0036] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0037] It should be noted that valves can be set at appropriate positions on each pipeline of this scheme to control the connection and disconnection of the pipelines. The position of the valves will not be described in detail here. figure 1 To determine the position of the valve, or those skilled in the art can set the valve as required.

[0038] The present invention provides a descaling device for a tube-and-tube heat exchanger, wherein the descaling device for the tube-and-tube heat exchanger includes:

[0039] A heat exchanger body 8, the heat exchanger body 8 includes a heat exchange module and two cooling water interfaces connected to the heat exchange m...

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Abstract

The invention relates to the field of descaling, and discloses a descaling device and descaling method of a shell-and-tube heat exchanger. The descaling device of the shell-and-tube heat exchanger comprises a heat exchanger body (8); the heat exchanger body (8) comprises two cooling water interfaces, an injection pipeline (16), a discharge pipeline (7), a chemical branch (5), a flushing branch (4), a hot air branch (18) and an exhaust branch (20); the injection pipeline (16) and the discharge pipeline (7) are connected to the two cooling water interfaces respectively; the hot air branch (18) is connected to the injection pipeline (16) in a bypass manner; and the exhaust branch (20) is connected to the discharge pipeline (7) in a bypass manner. By means of the technical scheme, through cooperation of the physical descaling process and the chemical descaling process, online descaling of the heat exchanger can be achieved, the heat exchanger does not need to be disassembled, operation issimplified, and efficiency is improved.

Description

technical field [0001] The invention relates to the field of descaling, in particular to a descaling device for a shell-and-tube heat exchanger, and to a descaling method for the shell-and-tube heat exchanger. Background technique [0002] A heat exchanger is a device that realizes heat transfer between a hot fluid and a cold fluid, and is widely used in the production of coal chemical and petrochemical industries. Most of the heat exchangers in the field of coal-to-oil chemical industry adopt shell and tube heat exchangers, and the circulating cooling water is used as the cold medium to exchange heat with the heat medium. Since the circulating cooling water contains metal ions, biological slime, algae and other substances, it is easy to foul the heat exchanger. When the scaling layer is formed in the heat exchange tube of the heat exchanger, the flow area will be reduced, and the circulating cooling water will flow The resistance in the process increases, the heat transfer...

Claims

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Application Information

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IPC IPC(8): F28G13/00F26B21/00F28G15/00F28G9/00G01N33/00
CPCF26B21/001F28G9/00F28G13/00F28G15/00F28G2015/006G01N33/00
Inventor 王伟刘吉平杜丽韩冰赵建宁杨建荣李虎陈永凯曾大勇管志鹏常军何鹏叶涛
Owner CHINA ENERGY GRP NINGXIA COAL IND CO LTD
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