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Coating on heat exchange sheet of heat exchange device and method for removing dirt

A technology of heat exchange device and heat exchange sheet, which is applied to the coating on the heat exchange sheet of the heat exchange device and the field of scaling removal, which can solve the problems of easy scaling, scaling is difficult to clean, and can only be stopped for cleaning.

Inactive Publication Date: 2014-01-29
崔骥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a coating applied on the heat exchange fins of a heat exchange device and a method for removing scaling, which can solve the problems in the prior art of easy scaling, difficult cleaning of scaling, and the need to stop cleaning and the like.

Method used

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  • Coating on heat exchange sheet of heat exchange device and method for removing dirt

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Experimental program
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Embodiment

[0031] The composition of antiscalant coating materials for heat exchange units is listed in the table below.

[0032]

[0033] TRITON DF12 in the above table is a Dow fatty chain polyoxyethylene ether.

[0034] The mineral oil in the above table is the high boiling point oil produced by refining the residue after the petrochemical industry refines the fuel oil.

[0035] Material composition of simulating fouling of heat exchange device and method of simulating fouling on heat exchange fins of heat exchange device.

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Abstract

This invention discloses a coating on heat exchange sheet of a heat exchange device and a method for removing dirt, which can resolves the problem that the dirt is easily formed and is not easily removed or is only washed by a machine. The technical scheme is that the coating on the heat exchange sheet of the heat exchange device has the heat exchange sheet which is the heat exchange sheet of the gas-gas heat exchange device in the FDG of the heat power station. The coating is constituted by at least one kind of hydrophobe molecule / or at least one surfactants. Furthermore, the coating average weight per area is in a range of 0.001-10000g / m2. The coating discloses by the invention prevent the dirt formed on the surface from adhering to the heat exchange sheet so as to achieve easy washing or online washing.

Description

technical field [0001] The invention relates to a material composition for reducing the adhesion of scale on a gas-gas heat exchange device and a method for removing scale from the gas-gas heat exchange device. Background technique [0002] Flue gas desulfurization devices have been widely used in thermal power stations all over the world. The device removes sulfur dioxide from the flue gas to reduce its emission into the atmosphere. In the specific operation, the flue gas produced by coal combustion passes through a lime or limestone absorption tower, the sulfur dioxide in the flue gas is absorbed by the lime or limestone, and the clean flue gas is discharged. [0003] Most desulfurization devices today have a gas-gas heat exchange device (English abbreviation GGH). After desulfurization, the flue gas heats up. The effect of warming is to make the flue gas from the chimney rise to a higher height, thereby reducing the formation of gypsum rain. In addition, cooling the f...

Claims

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Application Information

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IPC IPC(8): F28F19/02
Inventor 崔骥
Owner 崔骥
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