CN201228967Y - Low NOx cyclone micro-oil coal powder burner - Google Patents

Low NOx cyclone micro-oil coal powder burner Download PDF

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Publication number
CN201228967Y
CN201228967Y CNU2008200882327U CN200820088232U CN201228967Y CN 201228967 Y CN201228967 Y CN 201228967Y CN U2008200882327 U CNU2008200882327 U CN U2008200882327U CN 200820088232 U CN200820088232 U CN 200820088232U CN 201228967 Y CN201228967 Y CN 201228967Y
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CN
China
Prior art keywords
burner
combustion chamber
oil
coal dust
burner body
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 - Fee Related
Application number
CNU2008200882327U
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Chinese (zh)
Inventor
李凤瑞
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
State Grid Corp of China SGCC
Zhejiang Electric Power Test and Research Insititute
Original Assignee
Hangzhou Yineng Energy Retrenchment Technology Co
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 Hangzhou Yineng Energy Retrenchment Technology Co filed Critical Hangzhou Yineng Energy Retrenchment Technology Co
Priority to CNU2008200882327U priority Critical patent/CN201228967Y/en
Application granted granted Critical
Publication of CN201228967Y publication Critical patent/CN201228967Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a cyclone tiny-oil coal dust burner with low NO x in which a large amount of NO x is reduced in the burning process, aiming at the weakness in an existing cyclone coal dust burner that the emission of NO x can not be effectively reduced. The burner comprises a burner body and a first-stage coal dust combustion chamber which is arranged in the burner body, wherein an elbow pipe is connected on the inlet of the burner body, the inlet of the first-stage coal dust combustion chamber is provided with an oil combustion chamber, and the oil combustion chamber is inserted into the first-stage coal dust burner from the elbow pipe, a coal dust concentrating ring is arranged in the burner body, a cyclone inner over-fire air port and a cyclone outer over-fire air port are arranged on the outlet of the burner body, and air and coal dust distributers are respectively arranged on the outlet of the oil combustion chamber and the inlet of the coal dust combustion chamber. The utility model can ignite coal dust in the combustion chamber through utilizing tiny amount of oil, the burning is under the reducing atmosphere owing to large coal dust concentration in the combustion chamber, and a large amount of NO x is reduced, thereby reducing the discharge of pollutant.

Description

A kind of low NOx cyclone micro-oil coal powder burner
Technical field
The utility model belongs to a kind of coal burner, specifically belongs to a kind of low NOx cyclone micro-oil coal powder burner.
Background technology
On pulverized-coal fired boiler, the normal dense-dilute burner combustion technology that adopts, be about to carry out inertial separation into the breeze airflow of stove, after doing deep or light two strands, branch sends burner hearth respectively to, because dense strand coal powder density increases significantly than the coal dust of original wind, its fire behaviour is significantly improved, yet, coal dust can produce atmosphere pollution NOx when the burner internal combustion, it can cause serious harm to the pollution of environment and the health of human body, particularly, more be difficult to reach the requirement of low NOx drainage for difficult combustion fuel such as burning soft coal, meager coals.Existing vortex burner outside main pulverized coal burner, be provided with inward turning stream secondary wind and outside swirl secondary air, the burner discharge zone that is rotated in by secondary wind forms the recirculating zone and realizes staged air distribution, thereby improve steady combustion effect and reduce the NOx discharging, but still can not effectively reduce the discharge capacity of NOx.
Summary of the invention
The utility model provides the low NOx cyclone micro-oil coal powder burner that a large amount of NOx are reduced in a kind of ignition process for solving the defective that prior art exists.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of low NOx cyclone micro-oil coal powder burner, comprise burner body and insert the interior one-level pulverized coal combustor of burner body, burner body import department is connected with elbow, the import department of one-level pulverized coal combustor is provided with an oil combustion chamber, oil combustion chamber is inserted into the one-level pulverized coal combustor from elbow, be provided with the Pulverized Coal Concentration ring in the burner body, the burner body exit is provided with overfiren air port and the outer overfiren air port of eddy flow in the eddy flow, it is characterized in that: be positioned at the exit of oil combustion chamber, the porch of one-level coal dust combustion combustion chamber is provided with wind powder distributor.
For solving the problems of the technologies described above, the utility model adopts following further technical scheme:
Described wind powder distributor is star-like, by be sheathed on the oil combustion chamber pipe and along pipe circumferentially fin spaced apart constitute.
Described wind powder distributor is fixedlyed connected with the inwall of one-level coal dust combustion combustion chamber by the rib of being located on the pipe.
Also be provided with wear ring on the inwall of described burner body import department.
The utility model compared with prior art has the following advantages: this burner is except that the classification and backflow effect that keep secondary wind, also be provided with star-like wind powder distributor, because the flow-disturbing effect of star-like wind powder distributor, make that the coal dust turbulent flow that enters the combustion chamber is very strong, the fuel oil of utilization this moment trace gets final product the coal dust in the ignition combustion chamber, simultaneously because the coal powder density of combustion chamber is big, fuel oil and coal dust firing must the oxygen quantity not sufficient and make burning be in reducing atmosphere, cause the NOx in the combustion process to be reduced in a large number, thereby reduced the pollutant emission in the ignition process.In addition, because part fuel oil that need only be very little gets final product firing coal-dust, thereby can save the fuel oil in a large amount of ignition processes.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of wind powder distributor;
Fig. 3 is that the A-A of Fig. 2 is to profile;
Fig. 4 is that the B-B of Fig. 2 is to profile.
The specific embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:
Referring to Fig. 1, the utility model comprises burner body 1, and insert one-level pulverized coal combustor 2 in the burner body, burner body 1 import department is connected with elbow 3, the import department of one-level pulverized coal combustor 2 is provided with an oil combustion chamber 4, oil combustion chamber 4 is inserted into the one-level pulverized coal combustor 2 from elbow 3, in the oil combustion chamber 4 torch oil gun 6 and fiery checkout gear 7 can be housed, the side of oil combustion chamber 4 inlets is provided with cooling air inlet 17, be provided with Pulverized Coal Concentration ring 8 in the burner body 1, in order to reduce the wearing and tearing of burner, prolong the service life of burner, also can be provided with wear ring 9 on the inwall of burner body 1 import department, burner body 1 exit is provided with overfiren air port 10 and the outer overfiren air port 11 of eddy flow in the eddy flow, the burner discharge zone that is rotated in by secondary wind forms the recirculating zone and realizes staged air distribution, thereby improves steady combustion effect and reduce the NOx discharging.
This real novel improved part is: be positioned at the exit of oil combustion chamber 4, the porch of one-level pulverized coal combustor 2 is provided with wind powder distributor 12.
Referring to Fig. 2, Fig. 3, Fig. 4, this wind powder distributes 12 to be star-like, by be sheathed on the oil combustion chamber 4 pipe 13 and along pipe circumferentially fin 14 spaced apart constitute, wind powder distributor 12 is fixedlyed connected with the inwall of one-level pulverized coal combustor 2 by the rib of being located on the pipe 13 15, rib 15 is provided with the slope 16 that the inwall with one-level pulverized coal combustor 2 matches, the quantity of rib 15 can be preferably 4 by the actual needs setting.
After coal dust enters burner from coal powder entrance by elbow 3, at first concentrate by a Pulverized Coal Concentration ring 8, coal dust after concentrating enters one-level pulverized coal combustor 2 behind star-like wind powder distributor 12, because the flow-disturbing effect of star-like wind powder distributor 12, make that the coal dust turbulent flow that enters the combustion chamber is very strong, the fuel oil of utilization this moment trace gets final product the coal dust in the ignition combustion chamber, simultaneously because the coal powder density of combustion chamber is big, fuel oil and coal dust firing must the oxygen quantity not sufficient and make burning be in reducing atmosphere, cause the NOx in the combustion process to be reduced in a large number, thereby reduced the pollutant emission in the ignition process.In addition, because part fuel oil that need only be very little gets final product firing coal-dust, thereby can save the fuel oil in a large amount of ignition processes.

Claims (6)

1, a kind of low NOx cyclone micro-oil coal powder burner, comprise burner body (1), and insert one-level pulverized coal combustor (2) in the burner body (1), burner body (1) import department is connected with elbow (3), the import department of one-level pulverized coal combustor (2) is provided with an oil combustion chamber (4), oil combustion chamber (4) is inserted into the one-level pulverized coal combustor (2) from elbow (3), be provided with Pulverized Coal Concentration ring (8) in the burner body (1), burner body (1) exit is provided with overfiren air port (10) and the outer overfiren air port (11) of eddy flow in the eddy flow, it is characterized in that: the exit that is positioned at oil combustion chamber (4), the porch of one-level pulverized coal combustor (2) is provided with wind powder distributor (12).
2, a kind of low NOx cyclone micro-oil coal powder burner as claimed in claim 1, it is characterized in that: described wind powder distributor (12) is star-like, by being sheathed on the pipe (13) on the oil combustion chamber (4) and constituting along pipe (13) fin (14) circumferentially spaced apart.
3, a kind of low NOx cyclone micro-oil coal powder burner as claimed in claim 1 or 2 is characterized in that: described wind powder distributor (12) is fixedlyed connected with the inwall of one-level pulverized coal combustor (2) by the rib of being located on the pipe (14) (15).
4, a kind of low NOx cyclone micro-oil coal powder burner as claimed in claim 3 is characterized in that: described rib (15) is provided with the slope (16) that the inwall with one-level pulverized coal combustor (2) matches.
5, a kind of low NOx cyclone micro-oil coal powder burner as claimed in claim 1 or 2 is characterized in that: also be provided with wear ring (9) on the inwall of described burner body (1) import department.
6, a kind of low NOx cyclone micro-oil coal powder burner as claimed in claim 1 or 2 is characterized in that: the side of described oil combustion chamber (4) inlet is provided with cooling air inlet (17).
CNU2008200882327U 2008-06-04 2008-06-04 Low NOx cyclone micro-oil coal powder burner Expired - Fee Related CN201228967Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200882327U CN201228967Y (en) 2008-06-04 2008-06-04 Low NOx cyclone micro-oil coal powder burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200882327U CN201228967Y (en) 2008-06-04 2008-06-04 Low NOx cyclone micro-oil coal powder burner

Publications (1)

Publication Number Publication Date
CN201228967Y true CN201228967Y (en) 2009-04-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200882327U Expired - Fee Related CN201228967Y (en) 2008-06-04 2008-06-04 Low NOx cyclone micro-oil coal powder burner

Country Status (1)

Country Link
CN (1) CN201228967Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936525A (en) * 2010-09-27 2011-01-05 上海交通大学 Low NOx rotational flow coal dust combustion device of industrial boiler
CN107747861A (en) * 2017-11-24 2018-03-02 中山深宝电器制造有限公司 Tunnel type toasts production line

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936525A (en) * 2010-09-27 2011-01-05 上海交通大学 Low NOx rotational flow coal dust combustion device of industrial boiler
CN101936525B (en) * 2010-09-27 2012-05-30 上海交通大学 Low NOx rotational flow coal dust combustion device of industrial boiler
CN107747861A (en) * 2017-11-24 2018-03-02 中山深宝电器制造有限公司 Tunnel type toasts production line

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: HANGZHOU YINENG POWER TECHNOLOGY CO., LTD.

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

Effective date: 20091225

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20091225

Address after: The eight district of Hangzhou city in Zhejiang province Zhaohui Huadian Lane 1, zip code: 310014

Co-patentee after: Zhejiang Electric Power Test And Research Insititute

Patentee after: Hangzhou Italy Power Technology Co., Ltd.

Co-patentee after: Hangzhou Yineng Energy-Saving Technology Co., Ltd.

Address before: The eight district of Hangzhou city in Zhejiang province Zhaohui Huadian Lane 1, zip code: 310014

Patentee before: Hangzhou Yineng Energy-Saving Technology Co., Ltd.

ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

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

Effective date: 20130402

Owner name: YINENG ELECTRIC TECHNOLOGY CO., LTD., HANGZHOU ZHE

Free format text: FORMER OWNER: ZHEJIANG ELECTRIC POWER TEST AND RESEARCH INSITITUTE HANGZHOU YINENG ENERGY-SAVING TECHNOLOGY CO., LTD.

Effective date: 20130402

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: 20130402

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

Patentee after: State Grid Corporation of China

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

Patentee after: Zhejiang Electric Power Test And Research Insititute

Patentee after: Hangzhou Yineng Energy-Saving Technology Co., Ltd.

Address before: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane

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

Patentee before: Zhejiang Electric Power Test And Research Insititute

Patentee before: Hangzhou Yineng Energy-Saving Technology Co., Ltd.

ASS Succession or assignment of patent right

Owner name: YINENG ELECTRIC TECHNOLOGY CO., LTD., HANGZHOU ZHE

Free format text: FORMER OWNER: YINENG ELECTRIC TECHNOLOGY CO., LTD., HANGZHOU ZHEJIANG ELECTRIC POWER TEST AND RESEARCH INSITITUTE HANGZHOU YINENG ENERGY-SAVING TECHNOLOGY CO., LTD.

Effective date: 20140108

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20140108

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

Patentee after: State Grid Corporation of China

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

Patentee after: Zhejiang Electric Power Test And Research Insititute

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

Patentee before: State Grid Corporation of China

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

Patentee before: Zhejiang Electric Power Test And Research Insititute

Patentee before: Hangzhou Yineng Energy-Saving Technology Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090429

Termination date: 20170604