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Device for removing scale of trioxane heat exchanger

A kind of paraformaldehyde and heat exchanger technology, applied in the direction of cleaning heat transfer devices, lighting and heating equipment, washing, etc., can solve the problems of waste of cleaning materials, high pressure of sewage treatment, etc., to reduce pressure, reduce comprehensive energy consumption, The effect of reducing material waste

Pending Publication Date: 2019-12-06
KAIFENG LONGYU CHEM
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  • Abstract
  • Description
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is the waste of heat exchanger cleaning materials and the high pressure of sewage treatment in the production process of paraformaldehyde

Method used

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  • Device for removing scale of trioxane heat exchanger

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Embodiment Construction

[0020] as attached figure 1 As shown, a device for removing fouling of a paraformaldehyde heat exchanger includes a steam heating system, an alkali distribution system and a waste liquid recovery system. The steam heating system includes a desalted water tank 1, a first heat pump 2, a mixing heater 4, Static mixer 3 and heat exchanger E6 5;

[0021] The alkali distribution system includes a first alkali addition tank 20, a first alkali addition pump 21, a desalinated water pipe, a second alkali addition tank 23 and a second alkali addition pump 24;

[0022] The waste liquid recovery system includes a recovery tank 6, a recovery pump 7, a decanter 8, a filter press 15, a solid treatment system 16, a buffer tank 10, a buffer pump 11, a sulfuric acid delivery pump 18, a neutralization tank 12 and a sewage treatment system 13 ;

[0023] The outlet of the desalted water tank 1 is connected with the inlet of the first heat pump 2, the outlet of the first heat pump 2 is connected w...

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Abstract

The invention provides a device for removing scale of a trioxane heat exchanger. The device comprises a steam heating system, an alkali preparation system and a waste liquid recycling system. By meansof the device, material waste can be reduced, the pressure of sewage treatment is reduced, the device running period is prolonged, and the aims of saving energy, reducing consumption, reducing cost and increasing efficiency are achieved. The heat exchanger washing effect is good, the comprehensive energy consumption of a production system is reduced, the device running period is prolonged, the pressure and difficulty of sewage treatment are reduced, the risk of environment protection accidents is avoided, and great significance is achieved for the whole production system.

Description

technical field [0001] The invention relates to the technical field of chemical products, in particular to a device for removing fouling of a paraformaldehyde heat exchanger. Background technique [0002] During the production process of paraformaldehyde, due to its own material characteristics, the shell side of the paraformaldehyde heat exchanger E6 is frequently blocked. It is necessary to disassemble the heat exchanger after parking and clear the blockage. The cleaned materials are directly discharged to the sewage treatment station, resulting in waste of materials, increasing the working pressure of the sewage treatment station, and increasing the cost of sewage treatment and the consumption of resources and energy. Contents of the invention [0003] The technical problem to be solved by the invention is waste of heat exchanger cleaning materials and high pressure of sewage treatment in the production process of paraformaldehyde. In order to solve the above problems,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28G9/00F28G15/00
CPCF28G9/00F28G15/00F28G2015/006
Inventor 陈鹏彭芳冯晓晓邵淇渝郭伟峰郝纪委彭淼刘继亮李明彭国平杨玉其周文利张振朋
Owner KAIFENG LONGYU CHEM
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