Horizontal double-layer grate back firing boiler

A double-layer furnace and boiler technology, applied in the field of horizontal boilers, can solve the problems of environmental pollution, high exhaust gas temperature, heat loss, etc., and achieve the effects of reducing pollution, reducing exhaust gas temperature, reducing exhaust gas temperature and smoke content

Inactive Publication Date: 2005-09-28
华元新
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the high-temperature flue gas flows from a place with a lower water temperature (the water temperature in the water wall tube is lower) to a place with a higher water temperature (the water temperature in the drum is higher), and heat exchange is performed through radiation and convection in the furnace

Method used

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  • Horizontal double-layer grate back firing boiler

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Embodiment Construction

[0017] See attached picture. The serial numbers in the figure represent: slagging outlet 1, cast iron grate 2, fire door 3, combustion chamber 4, furnace door 5, convection pipe 6, air inlet 7, furnace wall 8, pressure gauge connection 9, safety valve connection 10 , lifting rings 11, 14, cold hole 12, main steam valve 13, drum 15, rear shed pipe 16, water wall pipe 17, rear header 18, smoke outlet pipe 19, tube heat exchanger 20, high temperature smoke chamber 21 , The front header 22, the front shed pipe 23, the water pipe grate 24, the water inlet 25, the water level gauge 26, the heat exchange chamber 27, the smoke inlet 28, and the arrow indicates the flow direction of the smoke.

[0018] The structure of the horizontal double-layer grate reverse combustion boiler in the embodiment of the present invention consists of a drum 15, a tube heat exchanger 20, a water-cooled wall tube 17, a downcomer (drawn at the end of the figure), a convection tube 6, and a front shed tube. ...

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Abstract

The horizontal double-layer fire grate reverberatory boiler includes boiler barrel, water cooled pipe, combustor, etc. and the inside of the boiler has three parts of combustor, high temperature fume chamber and heat exchanging cavity. The combustor in the front part of the boiler generates high temperature fume entering to the high temperature fume chamber, and the water pipe fire grate and the boiler barrel constitute one heat exchanging loop. The heat exchanging cavity has boiler barrel in the upper part and shell-and-tube heat exchanger in the lower part with connecting convection pipes, water cooled pipes and lowering pipes in between. Owing to the independent combustor and high temperature fume chamber, reverse heat exchange mode and other technology, the present invention has raised coal burning out rate, lowered fume exhaust temperature, lowered dust and smoke content, and raised heat efficiency and environment protecting effect.

Description

technical field [0001] The invention belongs to a horizontal boiler, in particular to a horizontal double-layer backfired boiler. Background technique [0002] Horizontal hand-fired boilers are commonly used boilers manufactured and sold by boiler factories. 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. 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 achieve the purpose. It is not difficult to see that the boiler with this structure has the following characteristics: the h...

Claims

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Application Information

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IPC IPC(8): F23B10/00
Inventor 华元新
Owner 华元新
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