Self-cleaning type low-temperature flue gas heat exchanger

A low-temperature flue gas and heat exchanger technology, applied in heat exchange equipment, lighting and heating equipment, coatings, etc., can solve the problems of low enthusiasm for installing flue gas heat exchangers and low investment returns, and achieve anti-fouling Good clogging performance, avoiding corrosion, and excellent corrosion resistance

Inactive Publication Date: 2017-11-28
涉县亿玮坤节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the investment income after installing the flue gas heat exchanger is low, and the major power plants are not very enthusiastic about installing the flue gas heat exchanger

Method used

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  • Self-cleaning type low-temperature flue gas heat exchanger

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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0011] Such as figure 1 As shown in the self-cleaning low-temperature flue gas heat exchanger device, the low-temperature flue gas of ≤350°C enters through the inlet 1 and travels outside the coiled pipe, while the refrigerant water enters through the water inlet 2, and the flue gas exchanges heat with the refrigerant water. The water is sent out through the outlet 2, and the cooled flue gas is released through the outlet. The coils are held in place by brackets.

[0012] Such as figure 1 As shown, the coil 3 can be a light pipe or can surround fins to increase the contact area, and the surface of the light pipe or the fins is coated with polytetrafluoroethylene material.

[0013] According to the characteristics of PTFE material, such as strong acid and alkali corrosion resistance, high and low temperature resistance, smooth and non-adhesive surface,...

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Abstract

The invention discloses a self-cleaning type low-temperature flue gas heat exchanger which comprises a flue gas inlet, a flue gas outlet, a water outlet, a water inlet, a coil and a support. A winding pipe fin has a polytetrafluoroethylene coating, the polytetrafluoroethylene material has the advantages of high acid-base corrosion resistance, high-low temperature resistance, smooth and non-sticky surface and the like, the self-cleaning type low-temperature flue gas heat exchanger is used for a low-temperature flue gas recycling system with the temperature lower than or equal to 350 DEG C, the system scaling blocking resistance is good, and the corrosion resistance is high.

Description

technical field [0001] The invention relates to a heat exchange device, in particular to a self-cleaning low-temperature flue gas heat exchanger. Background technique [0002] At present, there are many kinds of flue gas waste heat recovery heat exchangers commonly used in industry, such as finned tube heat exchangers, shell and tube heat exchangers, plate and shell heat exchangers, etc., but when applying the above types of heat exchangers, Because the flue gas contains dust and impurities, after a period of operation, the dust and impurities are easy to adhere and accumulate on the inner surface of the heat exchanger, resulting in a decrease in heat exchange efficiency and seriously affecting the normal use of the heat exchanger. It is very difficult to clean, and some of them cannot even be cleaned, so they can only be replaced with new heat exchangers, which increases the operating costs of enterprises. [0003] During the production process, the exhaust gas temperature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F19/02
CPCF28F19/02F28F2245/08
Inventor 刘森
Owner 涉县亿玮坤节能科技有限公司
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