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A single drum horizontal chain grate spray denitrification corner tube boiler

A technology of chain grate and corner tube boiler, applied in water tube type steam boiler, steam boiler, boiler water tube, etc., can solve the problems of high maintenance rate, increased use cost, low service life, etc., to reduce air and dust pollution, The effect of prolonging the service life and reducing the cost of use

Active Publication Date: 2018-05-15
HARBIN SIFANG BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flue gas at the outlet of the furnace directly washes the serpentine tube of the flag-type heating surface, which is severely worn. There is no settling chamber, the dust cannot settle, the heating surface is small, the service life is low, the maintenance rate is high, and the use cost is increased.
With the increasingly stringent national environmental protection policies, the known corner tube boilers cannot meet the national emission requirements for boiler air pollutant emission standards, and the concentration of nitrogen oxide emissions is high, polluting the environment

Method used

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  • A single drum horizontal chain grate spray denitrification corner tube boiler
  • A single drum horizontal chain grate spray denitrification corner tube boiler
  • A single drum horizontal chain grate spray denitrification corner tube boiler

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Embodiment Construction

[0018] Specific embodiments of the present invention, such as Figure 1-5 As shown, a single-drum horizontal chain grate spray denitrification angle tube boiler includes a boiler furnace body part and a chain grate part. The supporting side water wall downpipe 5 and the rear arch water supply pipe 27, the drum 3 arranged on the upper left part of the boiler body 1, the water inlet pipe 2 connected with the drum 3, the flag type heating surface water supply pipe 14, and the front arch downpipe 4, and downpipe 26 and upper return pipe 15, side wall water cooling wall 6, furnace 7, front arch water cooling wall 8, front arch lower header 9, side water cooling wall lower header 10, side wall water cooling wall upper header 16 , front and rear arch upper header 17, outlet pipe 19, flag-type heating surface header 20, flag-type heating surface pipe 22, flue gas outlet 23, flag-type heating surface 25, rear arch water wall 31, flag-type heating surface under The header 32, the lower ...

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Abstract

The invention relates to a single-drum horizontal-mounted chain grate spray denitrification corner tube boiler, which includes a boiler body and a chain grate part, wherein the chain grate part is arranged at the bottom of the boiler body part, and is characterized in that: Boiler body (1) is equipped with a boiler water circulation mechanism, which is composed of channel rear wall water wall (30) and settling chamber upper header (18) and lower header (33). Spray denitrification cyclone is set on boiler body 1 Separation and settling device, which is composed of denitrification spray pipe (28), denitrification nozzle (24), denitrification agent supplier (35), upper sedimentation separation chamber (21), lower sedimentation separation chamber (29), has the ability to solve the problem of small heating area , The flue gas at the furnace outlet does not directly flush the serpentine tube of the flag-type heating surface, which reduces wear and tear, prolongs the service life of the boiler, reduces the number of maintenance and reduces the emission of nitrogen oxides, reduces air pollution, improves thermal efficiency, energy saving, environmental protection and safety.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to a single-drum horizontal-mounted chain grate spray denitrification angular tube boiler that can meet the discharge requirements of the national boiler air pollutant discharge standard and solve the problem of high nitrogen oxide discharge concentration and environmental pollution. Background technique [0002] As we all know, the current corner tube boiler structure is that four unheated downcomers are arranged around the boiler body as support. The flue gas at the outlet of the furnace directly washes the serpentine tube of the flag-type heating surface, which is severely worn. There is no settling chamber, the dust cannot settle, the heating surface is small, the service life is low, the maintenance rate is high, and the use cost is increased. With the increasingly stringent national environmental protection policies, the known corner tube boilers cannot meet the national emiss...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/40F24H9/18F22B21/00F22B37/10F23J15/02F23J15/00
Inventor 李伟刚谭锡鈜赵光奎李琳孙伟东张显辉楚光临
Owner HARBIN SIFANG BOILER
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