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Heat exchanger with covering layer

A technology of heat exchangers and coatings, applied in the field of heat exchangers, to achieve the effects of reducing air flow, improving heat absorption and heat release capabilities, and fast heat release

Active Publication Date: 2005-11-16
山东慧敏科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat exchanger that improves the heat exchange performance of the heat exchanger by improving the surface radiation ability of the heat storage body has not been reported yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the regenerator used in the ironmaking blast furnace hot blast stove-checker brick, the checker brick (regenerator) has a circular inner hole 1, and all surfaces of the checker brick (regenerator) including the surface of the inner hole are brushed Coated with a layer of high radiation material cladding 2, thickness 0.2mm. The base of the heat storage body is a refractory material, and the high-radiation material coating 2 is a high-radiation far-infrared material with a higher emissivity than the base material of the heat storage body. The composition is: Cr 2 o 3 , 110 parts, 80 parts of clay, 90 parts of bentonite, 300 parts of brown corundum, 100 parts of silicon carbide, 400 parts of PA80 glue, and 100 parts of water, all are parts by weight. The solid components are ultra-fine processed to make the particle size between 25-700nm. Compared with existing heat exchangers of the same kind, the heat exchanger can save energy by more than 2...

Embodiment 2

[0027] As described in Example 1, the difference is that the cross-sectional shape of the honeycomb heat storage body is a rectangle, with a circular inner hole 8 and a high-radiation material coating 9, such as Figure 4 shown.

Embodiment 3

[0029] Such as figure 2 As shown, the heat storage body of the heat exchanger is fin-shaped, and the heat storage body has a rectangular inner hole 3, and a layer of high-radiation material coating 4 is brushed on all surfaces (including the surface of the inner hole) of the heat exchanger heat storage body, and the thickness is 0.03mm. The base body of the regenerator is ceramic material, and the high-radiation material coating 4 is a high-radiation far-infrared material whose emissivity is higher than that of the base material of the regenerator. The components are: 15 parts of ZrO, Cr 2 o 3 8 parts, TiO 2 10 parts, bentonite 2 parts, Al 2 o 3 , 15 parts, 10 parts of silicon carbide, 30 parts of PA80 glue, 10 parts of water, all are parts by weight. Compared with existing heat exchangers of the same kind, the thermal efficiency of the heat exchanger is increased by more than 10%.

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Abstract

The present invention relates to a heat exchanger with covering layer, belonging to the field of heat exchanger technology. Said heat exchanger is characterized by that one side or several sides of surface of its heat storage body are coated with a layer of high radiation material, whose radiation factor is higher than that of heat storage body base material. The heat storage body form can be honeycomb, fin form, ball form or plate form, and base body of heat storage body is made up by using refractory material, ceramic material or metal material.

Description

(1) Technical field [0001] The invention relates to a heat exchanger, in particular to a heat exchanger with cladding. (2) Background technology [0002] In metallurgy, machinery and other industrial fields, as well as agricultural product processing industry, heat exchanger is a commonly used equipment. The main function of the heat exchanger is to preheat air and gas. One of them directly uses coal, gas, oil or electricity as a heat source, and the other uses waste heat as a heat source. The heat source first heats the regenerator in the heat exchanger, and then sends in the air or gas that needs to be heated, and takes away the heat through the regenerator. The regenerator is generally made of refractory materials, ceramic materials or steel materials. The heat absorption and heat release capacity of the heat storage body is the key factor of the heat exchange performance of the heat exchanger, and it is also directly related to the energy saving of the heat exchanger....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D1/04F28D20/00F28F13/18
CPCF28F2245/06F28D20/0056F28F13/18F28D17/02F27D1/042Y02E60/142Y02E60/14F27D1/00F27D1/04F28F13/00
Inventor 周惠敏
Owner 山东慧敏科技开发有限公司
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