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Self-cleaning head cover and heat exchange equipment

A heat exchange equipment and self-cleaning technology, which is applied in the field of head covers, can solve the problems of easy fouling and under-scaling corrosion, and achieve the effects of improving the total heat transfer coefficient, strong anti-corrosion ability, and improving the heat transfer coefficient

Active Publication Date: 2022-05-31
CHINA SHENHUA COAL TO LIQUID & CHEM CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a self-cleaning head cover and heat exchange equipment in order to overcome the problem that the pipe surface such as the head cover is easy to accumulate fouling and corrosion under the scale in the prior art, and the self-cleaning head cover Can prevent pipe wall scaling and under-scaling corrosion

Method used

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  • Self-cleaning head cover and heat exchange equipment
  • Self-cleaning head cover and heat exchange equipment
  • Self-cleaning head cover and heat exchange equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

It is reduced by more than 10%, which increases the energy-saving effect of coal chemical industry. The self-cleaning head cover in this application can reduce or reduce labor and

Chemical cleaning to prevent equipment damage and scaling corrosion, easy installation, no need to change the equipment body, safe and reliable. SH type self-cleaning

The washing head cover has a very obvious effect of enhancing the turbulence, which can effectively improve the turbulence performance and prevent the scaling of the pipe wall, sludge deposition and corrosion.

Theoretical calculations and experimental data strongly support this. From low flow to high flow, low Reynolds number to high Reynolds number

Anti-scaling and anti-corrosion calculations were carried out.

The self-cleaning head cover of the present application strengthens scale and anti-corrosion data:

[0039]

[0040]

[0041] Reynolds number Re: ρvd / n and U / ( / L), the ratio of flow rate to flow rate. The flow velocity U...

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Abstract

The invention relates to the technical field of head covers, in particular to self-cleaning head covers and heat exchange equipment. The self-cleaning head cover includes a head shell (4) and a flow conversion unit arranged in the head chamber defined by the head shell (4), and the head shell (4) is provided with an inlet channel ( 5) and the outlet channel (6), the flow conversion unit includes a first flow conversion structure, the first flow conversion structure includes a first tooth tube (2), and the first tooth tube (2) is rotatably installed On the head shell (4), the outer surface of the first tooth tube (2) is a tooth surface, and the first tooth tube (2) flows from the inlet passage (5) to the head The interior of the chamber extends so that fluid entering from the inlet channel (5) flows through the outer surface of the first toothed tube (2). The self-cleaning head cover can prevent scaling and under-scaling corrosion on the pipe wall.

Description

Self-cleaning head cover and heat exchange equipment technical field [0001] The present invention relates to the technical field of head covers, in particular to self-cleaning head covers and heat exchange equipment. Background technique According to statistics, the loss caused by scaling and corrosion of heat exchange equipment such as head type in my country is as high as 10 billion yuan every year. superior. Since the flow velocity in some heat exchanger tubes is less than 0.9m / s, the fouling can make the heat exchange equipment generate thermal resistance. The thermal coefficient will decrease by 9%-9.6%, and the energy consumption and emissions will increase by more than 10%. Increase. Fouling and scaling on the surface of the pipe such as the head cover and corrosion under the scale are likely to cause heat transfer problems, safety and environmental protection problems, and at the same time reduce the pollution. Low efficiency, the above problems are the uns...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F9/02F28F13/02
CPCF28F9/026F28F13/02
Inventor 魏志明尚洪涛高小龙张永胜张杰孙高攀
Owner CHINA SHENHUA COAL TO LIQUID & CHEM CO LTD
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