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Horizontal back-burning boiler with double-layer fire grates

A double-layer furnace and back-burning technology, which is applied in steam boilers, fire-tube steam boilers, steam generation, etc., to achieve the effects of solving flue gas flow resistance, low heat loss, and high thermal efficiency

Inactive Publication Date: 2008-08-27
华元新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an improved high-efficiency and energy-saving boiler to solve the problems of recycling and utilizing the waste heat of the tail flue gas in the furnace, further improving the thermal efficiency of the boiler and reducing the flow resistance of the flue gas

Method used

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  • Horizontal back-burning boiler with double-layer fire grates

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Embodiment Construction

[0022] Below in conjunction with embodiment and accompanying drawing for further description:

[0023] See attached picture.

[0024] Fig. 1 is the embodiment of the horizontal double-layer grate backfired boiler of the present invention. It includes a furnace body 35, an air inlet 9, a combustion chamber 4, a high temperature smoke chamber 33, a drum 20, a heat exchange chamber 31, a water wall pipe 23, a front descending pipe 10, a descending pipe 22, front and rear shed pipes 11, 21 and inlet The water connecting pipe 29 is characterized in that a header heat exchanger is arranged below the boiler heat exchange chamber 31 (see Figures 2 and 3), and the header heat exchanger consists of the shell 40 of the heat exchanger 30, the smoke pipe 39 and the left and right Composed of a header 25, the front end of the header 25 communicates with the shell 40, the upper water cooling wall pipe hole 36 and the descending pipe hole 37 of the header respectively communicate with the wa...

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PUM

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Abstract

A horizontal double-grate backfire boiler comprises a boiler body, an air intake, a combustion chamber, a high-temperature smoke box, a drum, a heat-exchange chamber, a water-cooled wall tube set, a down-comer, front and back shed tubes, a intake adapter and etc.. Under the boiler heat-exchange chamber is disposed a header heat exchanger consisting of a casing and a flue tube and left and right headers inside. The front end of the header is in communication with the front end casing of the heat exchanger and the tube holes on the header are connected with the water-cooled wall tube, the down-comer and the back header separately. A flue box with flue tubes disposed at the back end of the header heat exchanger is in communication with a flue mouth.

Description

technical field [0001] The invention belongs to a small horizontal coal-fired fast-loading boiler. Specifically, it is a countercurrent heat exchange horizontal saturated steam boiler. Background technique [0002] Small horizontal coal-fired fast-loading boilers are commonly used boilers manufactured and sold by boiler factories at present. The structure of this boiler includes: drum, water-cooled wall tube, downcomer, rear shed tube, header and furnace wall, etc. There is a smoke pipe in the drum, and a row of water-cooled wall tubes in the shape of human ribs are arranged on both sides of the outer wall of the drum. The chamber between the two water-cooled wall tubes is the furnace. The bottom is sent in by the blower, and the water is sent in from the drum. When working, the coal is burned on the grate (normally burning), and the heat released is transferred to the heating surface of the boiler, so that the temperature of the boiler water is raised to generate steam to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B9/10
Inventor 华元新华俊
Owner 华元新