CN2881359Y - Oxygen enriched powdered coal burner - Google Patents

Oxygen enriched powdered coal burner Download PDF

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Publication number
CN2881359Y
CN2881359Y CNU2006201007297U CN200620100729U CN2881359Y CN 2881359 Y CN2881359 Y CN 2881359Y CN U2006201007297 U CNU2006201007297 U CN U2006201007297U CN 200620100729 U CN200620100729 U CN 200620100729U CN 2881359 Y CN2881359 Y CN 2881359Y
Authority
CN
China
Prior art keywords
burner
oxygen
combustion chamber
coal dust
oxygen enriched
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2006201007297U
Other languages
Chinese (zh)
Inventor
黄郁明
李凤瑞
方磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yineng Electric Technology Co., Ltd., Hangzhou
Zhejiang Electric Power Test And Research Insititute
State Grid Corp of China SGCC
Original Assignee
YINENG ELECTRIC TECHNOLOGY Co Ltd HANGZHOU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YINENG ELECTRIC TECHNOLOGY Co Ltd HANGZHOU filed Critical YINENG ELECTRIC TECHNOLOGY Co Ltd HANGZHOU
Priority to CNU2006201007297U priority Critical patent/CN2881359Y/en
Application granted granted Critical
Publication of CN2881359Y publication Critical patent/CN2881359Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The technical problem for the utility model to solve is to provide an oxygen enriched powdered coal burner with a simple structure, low fabrication cost and sufficient combustion process. The burner replaces the oil by oxygen for the combustion supporting process. The utility model relates to an oxygen enriched powdered coal burner which comprises a burner proper, a primary combustion chamber in the burner proper, the primary combustion chamber is equipped with a ignition channel for the access of a high temperature ignition heat source, the utility model is characterized in that the outlet of the primary combustion chamber is minimally equipped with one oxygen enriched conduit. The burner has the characteristics like simple structure and low fabrication cost; on the other hand, the powdered coal from the primary combustion chamber partially consume some oxygen due to combustion process, the oxygen can be made up through the oxygen enriched conduit in which the flame temperature and burning efficiency are increased, the purpose of energy conservation is achieved at the same time.

Description

The oxygen-rich coal dust burner
Technical field
The utility model belongs to a kind of coal burner, belongs to generating plant pulverized coal boiler starting ignition and low-load combustion-stabilizing burner particularly, also can do main burner simultaneously.
Background technology
Current coal is in short supply, and the ature of coal that boiler is used is difficult to be guaranteed, and when causing in the running of power station high load capacity, ash erosion is serious, and it is combustion-supporting to throw oil when underrun, has had a strong impact on the safety and economic operation of station boiler.Burner is the key that station boiler catches fire and surely uses, and therefore develops a kind of coal burner that can increase substantially efficiency of combustion, uses large tracts of land and promote in station boiler, becomes a kind of active demand.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of simple in structure, and low cost of manufacture, the oxygen-rich coal dust burner of sufficient combustion, this burner is combustion-supporting for oil with oxo.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of oxygen-rich coal dust burner, comprise burner body and insert the one-level combustion chamber of burner body, the one-level combustion chamber is provided with the ignition channel that the high-temperature ignition thermal source enters, and it is characterized in that: the exit of described one-level combustion chamber is provided with at least one oxygen enrichment conduit.
There is an angle of flare in described one-level burner along the gas stream burning flow direction.
The characteristics of the burner of this structure: simple in structure on the one hand, low cost of manufacture, the coal dust that comes out from the one-level combustion chamber is owing to burning consumes part of oxygen, by oxygen enrichment conduit supplemental oxygen on the other hand, improve flame temperature and efficiency of combustion, reached the purpose of energy savings simultaneously.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the utility model.
Fig. 2 is the structural representation of second kind of embodiment of the utility model.
The specific embodiment
Embodiment 1: referring to Fig. 1, the utility model comprises burner body 1, and insert the one-level combustion chamber 2 of burner body 1, there is an angle of flare in one-level combustion chamber 2 along the gas stream burning flow direction, make the outlet of one-level combustion chamber 2 be bell mouth shape, ignition channel 3 stretches in the one-level combustion chamber 2 from burner body 1 outer axis horizontal, the exit of one-level combustion chamber 2 is provided with oxygen enrichment conduit 4, oxygen enrichment conduit 4 inserts outside burning body 1, the oxygen enrichment conduit can be along burner axially or radial arrangement, as can be seen from Fig. 1, oxygen enrichment conduit 4 can the inclination mode insert, inclination alpha=0~90 °, and this oxygen enrichment conduit 4 is provided with one at least.After breeze airflow enters burner, part coal dust enters in the one-level combustion chamber 2, the high-temperature ignition thermal source enters one-level combustion chamber 2 by ignition channel 3, coal dust is lighted, because of there is an angle of flare in one-level combustion chamber 2 along the gas stream burning flow direction, make the breeze airflow of lighting be diffused into the outlet of one-level combustion chamber 2 rapidly, the coal dust that comes out from one-level combustion chamber 2 is owing to burning consumes part of oxygen, by being arranged on the oxygen enrichment conduit 4 supplemental oxygen burning in this exit, in order to make coal dust firing more abundant, along the gas stream burning flow direction a plurality of oxygen enrichment conduits 4, supplemental oxygen step by step are set step by step.
Embodiment 2: referring to Fig. 2, the ignition channel 3 described in the present embodiment is connected with one-level combustion chamber 2 in the inclination mode, and other structure is identical with embodiment 1.
This burner is used for generating plant pulverized coal boiler starting ignition and low-load combustion-stabilizing, both can be used as auxiliary burner, also can be used for main burner, and it is simple in structure, and low cost of manufacture is adapted at using in the station boiler and promoting.
Above-mentioned two kinds of embodiment are only for the usefulness that the utility model is described; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation of the spirit and scope that do not break away from utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.

Claims (6)

1, a kind of oxygen-rich coal dust burner, comprise burner body (1) and insert the one-level combustion chamber (2) of burner body (1), one-level combustion chamber (2) is provided with the ignition channel (3) that the high-temperature ignition thermal source enters, and it is characterized in that: the exit of described one-level combustion chamber (2) is provided with at least one oxygen enrichment conduit (4).
2, a kind of oxygen-rich coal dust burner as claimed in claim 1, it is characterized in that: described oxygen enrichment conduit (4) is provided with step by step along the gas stream burning flow direction.
3, a kind of oxygen-rich coal dust burner as claimed in claim 2, it is characterized in that: there is an angle of flare in described one-level burner (2) along the gas stream burning flow direction.
4, a kind of oxygen-rich coal dust burner as claimed in claim 3 is characterized in that: described oxygen enrichment conduit (4) stretches in the burning body (1) in the inclination mode.
5, a kind of oxygen-rich coal dust burner as claimed in claim 4 is characterized in that: described ignition channel (3) along continuous straight runs stretches into one-level combustion chamber (2).
6, a kind of oxygen-rich coal dust burner as claimed in claim 4 is characterized in that: described ignition channel (3) is connected with one-level combustion chamber (2) in the inclination mode.
CNU2006201007297U 2006-01-25 2006-01-25 Oxygen enriched powdered coal burner Expired - Lifetime CN2881359Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006201007297U CN2881359Y (en) 2006-01-25 2006-01-25 Oxygen enriched powdered coal burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006201007297U CN2881359Y (en) 2006-01-25 2006-01-25 Oxygen enriched powdered coal burner

Publications (1)

Publication Number Publication Date
CN2881359Y true CN2881359Y (en) 2007-03-21

Family

ID=37881199

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2006201007297U Expired - Lifetime CN2881359Y (en) 2006-01-25 2006-01-25 Oxygen enriched powdered coal burner

Country Status (1)

Country Link
CN (1) CN2881359Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101280917B (en) * 2008-05-13 2010-04-14 吕伟鹏 Coal gas, coal fines and oxygen-enriched mixed combustion device
CN101556039B (en) * 2009-05-14 2010-09-01 西安建筑科技大学 Oxygen-enriched burner
CN103123112A (en) * 2013-01-09 2013-05-29 向卫 Oxygen enriched pulverized coal combustion device for gasification small oil gun
WO2014110996A1 (en) * 2013-01-15 2014-07-24 烟台龙源电力技术股份有限公司 Ignition combustor for supporting combustion with pure oxygen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101280917B (en) * 2008-05-13 2010-04-14 吕伟鹏 Coal gas, coal fines and oxygen-enriched mixed combustion device
CN101556039B (en) * 2009-05-14 2010-09-01 西安建筑科技大学 Oxygen-enriched burner
CN103123112A (en) * 2013-01-09 2013-05-29 向卫 Oxygen enriched pulverized coal combustion device for gasification small oil gun
WO2014110996A1 (en) * 2013-01-15 2014-07-24 烟台龙源电力技术股份有限公司 Ignition combustor for supporting combustion with pure oxygen

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20071214

Address after: Hangzhou City, Zhejiang province Zhaohui eight districts Huadian Lane 1, zip code: 310014

Co-patentee after: Yineng Electric Technology Co., Ltd., Hangzhou

Patentee after: Zhejiang electric power test and Research Institute

Address before: 1, Huadian Road, Xiacheng District, Zhejiang City, Hangzhou Province, China: 310014

Patentee before: Yineng Electric Technology Co., Ltd., Hangzhou

ASS Succession or assignment of patent right

Owner name: ZHEJIANG PROVINCE POWER TEST & RESEARCH INSTITUTE

Free format text: FORMER OWNER: HANGZHOU YINENG POWER TECHNOLOGY CO., LTD.

Effective date: 20071214

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 310014 HANGZHOU, ZHEJIANG PROVINCE TO: 100031 DONGCHENG, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20130328

Address after: 100031 West Chang'an Avenue, Beijing, No. 86

Patentee after: State Grid Corporation of China

Patentee after: Zhejiang Electric Power Test And Research Insititute

Patentee after: Yineng Electric Technology Co., Ltd., Hangzhou

Address before: Hangzhou City, Zhejiang province 310014 eight District No. 1, Huadian Zhaohui

Patentee before: Zhejiang Electric Power Test And Research Insititute

Patentee before: Yineng Electric Technology Co., Ltd., Hangzhou

C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Free format text: FORMER OWNER: ZHEJIANG ELECTRIC POWER TEST AND RESEARCH INSITITUTE

Effective date: 20130328

Owner name: ZHEJIANG ELECTRIC POWER TEST AND RESEARCH INSITITU

Free format text: FORMER OWNER: YINENG ELECTRIC TECHNOLOGY CO., LTD., HANGZHOU

Effective date: 20130328

CX01 Expiry of patent term

Granted publication date: 20070321

EXPY Termination of patent right or utility model