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Multi-channel regenerative air preheater

An air preheater, regenerative technology, applied in lighting and heating equipment, combustion methods, indirect carbon dioxide emission reduction, etc. Large air leakage and other problems, to achieve the effect of easy sealing and small air leakage

Active Publication Date: 2021-01-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to provide a novel multi-channel regenerative air preheater, which integrates the advantages of the rotary air preheater and the valve switching air preheater to solve the air leakage of the rotary air preheater in the prior art Problems such as large volume, valve switching air preheater switching momentary cut-off, etc.

Method used

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  • Multi-channel regenerative air preheater

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Embodiment 1

[0150] Figure 24 It is an embodiment of the application of a multi-channel regenerative air preheater in a heating furnace according to the present invention.

[0151] Such as Figure 24 As shown, one multi-channel regenerative air preheater 1 of the present invention is installed in the flue gas waste heat recovery system of the heating furnace 90 . After the flue gas flow 200 flows out from the flue gas outlet 91 of the heating furnace 90, it enters the flue gas inlet of the multi-channel regenerative air preheater 1 of the present invention, and releases heat in the multi-channel regenerative air preheater 1 of the present invention Finally, the flue gas flows out from the outlet of the multi-channel regenerative air preheater 1 of the present invention, and is discharged into the chimney 97 through the induced draft fan 96; the air flow 100 is sent into the multi-channel regenerative air preheater 1 of the present invention by the blower 95 After absorbing heat in the m...

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Abstract

The invention discloses a multi-channel regenerative air preheater which comprises regenerative chambers, a reversing valve, air inlet and outlet modules, flue gas inlet and outlet modules and a reversing valve driving device; the number of the regenerative chambers is an even number, the reversing valve is arranged in the middle, and the regenerative chambers, the air inlet and outlet modules andthe flue gas inlet and outlet modules surround the reversing valve; and the air inlet and outlet modules, the reversing valve and the flue gas inlet and outlet modules form a straight line, and the multiple regenerative chambers are evenly divided on the two sides. Through the multi-channel regenerative air preheater, the problems that in the prior art, a rotary air preheater is large in air leakage amount, and flow is cut off at the moment of switching of a valve switching type air preheater are solved.

Description

technical field [0001] The invention belongs to the technical field of industrial heat exchangers, in particular to a multi-channel regenerative air preheater. Background technique [0002] In various heating furnaces in petrochemical, iron and steel, non-ferrous metallurgy, thermal power generation and other industries, air preheaters are widely used to recover waste heat from flue gas. Regenerative air preheater is one of many air preheaters, which are widely used in various furnaces and kilns in power plant boilers, iron and steel, nonferrous metallurgy and other industries. [0003] The regenerative air preheaters in the prior art are widely used in two forms: rotary type and valve switching type. [0004] Rotary air preheaters are widely used in power plant boilers. The rotary air preheaters transfer heat in the form of heat storage, and flue gas and air alternately flow through the heating surface. When the flue gas flows, the heat is transferred from the flue gas ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23L15/02
CPCF23L15/02Y02E20/34
Inventor 王德瑞杨利然李心芳
Owner CHINA PETROLEUM & CHEM CORP
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