Single-drum settling denitration chamber jet lower gas inlet fuel oil corner tube boiler

A technology of corner tube boiler and single drum, which is applied in the direction of boiler water pipe, steam boiler, combustion method, etc. It can solve the problems of polluted environment, boiler can not meet the emission requirements, high concentration of nitrogen oxides, etc., and achieve large heating area and simple structure , the effect of staying for a long time

Pending Publication Date: 2020-04-03
HARBIN SIFANG BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increasingly stringent national environmental protection policies, the well-known structural boilers cannot meet the national emission requirements for boiler air pollution emission standards, and the concentration of nitrogen oxides is high, polluting the environment

Method used

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  • Single-drum settling denitration chamber jet lower gas inlet fuel oil corner tube boiler
  • Single-drum settling denitration chamber jet lower gas inlet fuel oil corner tube boiler
  • Single-drum settling denitration chamber jet lower gas inlet fuel oil corner tube boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The invention provides a single-drum subsidence denitrification chamber injection gas-fired corner-tube boiler, such as figure 1 As shown, it includes the boiler body part and the combustion system part. The boiler furnace body part includes the boiler body 1, six front-side descending pipes 6, middle descending pipes 17, first throttling ring 34 and rear-side descending pipe 26, which are vertically arranged around the boiler body 1 and have the function of supporting and descending. The flow ring 24, the drum 3 set on the upper left part of the boiler body 1, the water inlet pipe 2 connected with the drum 3, the water supply pipe 15, the first downpipe 4, the second downpipe 5 and the upper return pipe 16, the side water wall 8. The upper part of the furnace 7, the lower part of the oblique lower intake furnace 10, the front arch water wall 9, the front and rear arch lower headers 29, the side water wall lower headers 14, the side water wall upper headers 22, the fron...

Embodiment 2

[0033] 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 to the drum 3, the water header 20 is replaced, and the water supply pipe 15 in the main body becomes the gas collector 15.

Embodiment 3

[0035] 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 .

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Abstract

The invention discloses a single-drum settling denitration chamber jet lower gas inlet fuel oil corner tube boiler, which comprises a boiler body part and a combustion system part. A supporting structure is arranged in the boiler body and comprises a front side downcomer, a middle downcomer and a rear side downcomer which are vertically arranged. The two ends of the front side downcomer, the two ends of the middle downcomer and the two ends of the rear side downcomer are connected with a horizontally-arranged side water wall upper header and a horizontally-arranged side water wall lower headercorrespondingly. The bottom of the drum is connected with a downcomer communicated with the middle downcomer and the rear side downcomer, the bottom of the middle downcomer is connected with a frontand rear arch lower header, a front and rear arch upper header communicated with the front and rear arch lower header is arranged on the upper portion in the boiler body, and the front and rear arch upper header is communicated with the drum through an upper water return pipe. The single-drum settling denitration chamber jet lower gas inlet fuel oil corner tube boiler has the advantages of long fuel retention time, free extension of flame, sufficient combustion of fuel, stable support structure and safe water circulation.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular, it can meet the emission requirements of the national boiler air pollutant emission standards, and solve the problems of insufficient fuel combustion, high nitrogen oxide emission concentration, and environmental pollution. Gas oil corner tube boiler. Background technique [0002] As we all know, the current gas-fired boilers generally have side air intake, the distance between the front and rear of the combustion chamber is short, the height of the combustion chamber is low, the volume of the combustion chamber is small, there is no settling chamber, and the support structure and water circulation are not safe. This structure leads to short residence time of the flue gas and needs to turn to enter the upper part of the furnace, the flame cannot stretch freely, the gas combustion is uneven, the fuel combustion is insufficient, the flue gas filling degree of the combustion chamber i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B31/00F22B37/10F24H1/44F24H9/18F24H9/00F23J15/00F23J15/02
CPCF22B31/00F22B37/10F23J15/003F23J15/02F23J2215/10F24H1/44F24H9/0005F24H9/1836
Inventor 孙伟东
Owner HARBIN SIFANG BOILER
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