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Double-furnace combined combustion settling chamber corner-tube boiler

A technology for burning settling chambers and corner tube boilers, which is applied in the field of boilers and can solve the problems of high concentration of nitrogen oxide emissions, insufficient combustion, and increased use costs, and achieve the effects of improving thermal efficiency, simple structure, and reducing emissions

Pending Publication Date: 2019-05-10
HARBIN SIFANG BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently biomass boilers generally have high water content and low calorific value in terms of the use of biomass fuel and boiler structure. However, existing boilers cannot directly bundle and burn biomass fuel with high water content. It can be burned after the water is dry, which increases the cost of use, insufficient combustion, and serious slagging; there is no settling chamber, the dust cannot settle, the concentration of nitrogen oxide emissions is high, and the thermal efficiency of the boiler is low

Method used

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  • Double-furnace combined combustion settling chamber corner-tube boiler
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Examples

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Effect test

Embodiment 1

[0026] The invention provides a double furnace compound combustion settling chamber corner tube boiler, such as figure 1 As shown, it includes the boiler body part and the combustion system part. The boiler body part includes a boiler body 1, four front side support downpipes 6 and rear side support downpipes 27 and a throttle ring 30, which are vertically arranged around the boiler body 1 and have the function of supporting and descending. The drum 3, the water inlet pipe 2 connected with the drum 3, the water supply pipe 20, the downcomer I4, the downcomer II5 and the upper return pipe 21, the upper header 25 of the side water wall, the side water wall 8, and the lower header of the side water wall Box 39, furnace I7, furnace II 37, front and rear arch upper headers 22, front arch water wall 9, front arch lower header 19, sealing plate 10, biomass combustion chamber 11, water-cooled air chamber membrane wall header 12, Air inlet 13, water-cooled air chamber membrane type wa...

Embodiment 2

[0034] This embodiment is a further improvement made on the basis of Embodiment 1, including all the technical features of Embodiment 1, such as figure 2 As shown, the steam outlet is added on the drum 3, and the water header 35 is replaced, the water supply pipe 20 in the main body becomes the gas collecting pipe 20, and the combustion equipment is a chain grate.

Embodiment 3

[0036] This embodiment is a further improvement made on the basis of Embodiment 1, including all the technical features of Embodiment 1, such as image 3 As shown, the drum 3 is on the upper right part of the boiler body 1, and the combustion equipment is a chain grate.

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Abstract

The invention discloses a double-furnace combined combustion settling chamber corner-tube boiler. The double-furnace combined combustion settling chamber corner-tube boiler comprises a boiler body portion and a combustion system portion, wherein a supporting structure and a double-furnace structure are arranged in the boiler body portion; the supporting structure comprises a front side supportingdowncomer and a rear side supporting downcomer which are vertically arranged; the upper end of the front side supporting downcomer is connected with a boiler barrel and the lower end of the front sidesupporting downcomer is connected with a side water wall lower container; each end of the rear side supporting downcomer is connected with a horizontal side water wall upper container and the horizontal side water wall lower container; the boiler barrel is arranged at the upper portion of the one side of a boiler body; a water inlet pipe is connected to the boiler barrel; the bottom of the boilerbarrel is connected with a first downcommer communicating to the rear side supporting downcomer and a second downcomer connecting with a front arch lower container; and the double-furnace structure is composed of a first furnace and a second furnace. The double-furnace combined combustion settling chamber corner-tube boiler has the characteristics that the support strength is high, the structureis stable, the biomass fuel is dried in the furnace, direct bundle and fully combustion of the fuel are achieved, the emission of nitrogen oxide is reduced, energy is saved and environmental friendliness is achieved.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular, it can meet the discharge requirements of the national boiler air pollutant discharge standards, and solve the problems of high moisture content, low calorific value, inability to burn directly, insufficient combustion, serious slagging, and nitrogen oxidation after bundling biomass. A double furnace compound combustion settling chamber corner tube boiler with high emission concentration and polluting the environment. Background technique [0002] As we all know, with society's increasing demand for energy, fossil fuels as the main source of energy are rapidly decreasing. Therefore, looking for a renewable alternative energy source has become the focus of widespread concern in society. Biomass energy is an important renewable energy, which has the characteristics of green, low carbon, clean and renewable. Accelerating the development and utilization of biomass energy has become a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B31/00F22B31/08F22B37/00F22B37/14F24H1/40F24H9/00F24H9/18F23M5/08
Inventor 付琳孙宇健孙伟东
Owner HARBIN SIFANG BOILER
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