CN100565007C - A kind of low NOx DC micro-oil coal powder burner - Google Patents
A kind of low NOx DC micro-oil coal powder burner Download PDFInfo
- Publication number
- CN100565007C CN100565007C CNB2008100624029A CN200810062402A CN100565007C CN 100565007 C CN100565007 C CN 100565007C CN B2008100624029 A CNB2008100624029 A CN B2008100624029A CN 200810062402 A CN200810062402 A CN 200810062402A CN 100565007 C CN100565007 C CN 100565007C
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- combustion chamber
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- burner body
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Abstract
The present invention relates to a kind of low NOx DC micro-oil coal powder burner, comprise burner body and insert the interior one-level combustion chamber of burner body, the burner body porch is provided with pulverized coal concentrator, oil combustion chamber is gone in the one-level combustion chamber from the burner body oblique cutting, it is characterized in that: the porch that is positioned at the one-level combustion chamber is provided with the grid type airstream adjuster.Described grid type airstream adjuster has a pipe, is interval with a plurality of dividing plates in the pipe.The present invention has the following advantages: owing to be provided with the grid type airstream adjuster, the further enrichment of coal dust behind the coal dust process grid airstream adjuster after concentrating, turbulent flow strengthens simultaneously, from the micro-oil fire flame of oil combustion chamber ejection coal dust the ignition combustion chamber at first, because turbulent flow is strong, adds coal powder density height in the upper combustion chamber, makes the combustion chamber be in combustion process under the reducing atmosphere, the NOx that burning produces is reduced in a large number, thereby has reduced the discharging of pollutant.
Description
Technical field
The invention belongs to a kind of coal burner, specifically belong to a kind of low NOx DC 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.Low-NOx pulverized coal burner arises at the historic moment for this reason, for example a kind of horizontal bias type burner, adopt zigzag multiply spout structure at dense burst of discharge place, this burner shows well steady combustion and underrun performance, and tool low NOx combustion characteristic, but its above effect when using difficulty combustion fuel will reduce, and still can not effectively reduce the discharge capacity of NOx.
Summary of the invention
The present invention provides the low NOx DC 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 present invention by the following technical solutions:
A kind of low NOx DC micro-oil coal powder burner, comprise burner body and insert the interior one-level combustion chamber of burner body, the burner body porch is provided with pulverized coal concentrator, oil combustion chamber is gone in the one-level combustion chamber from the burner body oblique cutting, it is characterized in that: the porch that is positioned at the one-level combustion chamber is provided with the grid type airstream adjuster.
For solving the problems of the technologies described above, the present invention adopts following further technical scheme:
Described grid type airstream adjuster has a pipe, is interval with a plurality of dividing plates in the pipe.
Described grid type airstream adjuster is connected with the inwall of one-level combustion chamber by being arranged on the outer rib of pipe.
The present invention compared with prior art has the following advantages: owing to be provided with the grid type airstream adjuster, the further enrichment of coal dust behind the coal dust process grid airstream adjuster after concentrating, turbulent flow strengthens simultaneously, from the micro-oil fire flame of oil combustion chamber ejection coal dust the ignition combustion chamber at first, because turbulent flow is strong, adds coal powder density height in the upper combustion chamber, makes the combustion chamber be in combustion process under the reducing atmosphere, the NOx that burning produces is reduced in a large number, thereby has reduced the discharging of pollutant.Because a spot of fuel oil of employing gets final product the coal dust in the ignition combustion chamber, thereby can save a large amount of ignition oils.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of grid type airstream adjuster;
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 invention will be further described below in conjunction with embodiment and accompanying drawing:
Referring to Fig. 1, the present invention includes burner body 1, and insert one-level combustion chamber 2 in the burner body 1, burner body 1 porch is provided with annular pulverized coal concentrator 3, oil combustion chamber 4 is gone in the one-level combustion chamber 2 from burner body 1 oblique cutting, in order to observe the situation in the combustion chamber, one observation panel 5 is gone in the one-level combustion chamber 2 from burner body 1 oblique cutting, according to actual needs, secondary combustion chamber 6 and three grades of combustion chambers 7 also can be set, burner body 1 exit is provided with air film wind inlet 8, the lower cooling air of one relative temperature enters from air film wind inlet 8 and makes the cooling of burner wall, thereby prolongs burner service life.
The present invention is improvements over the prior art, and improvements of the present invention are: the porch that is positioned at one-level combustion chamber 2 is provided with grid type airstream adjuster 9.
Referring to Fig. 2, Fig. 3, Fig. 4, this grid type airstream adjuster 9 has a pipe 10, be interval with a plurality of dividing plates 11 in the pipe 10, grid type airstream adjuster 9 is connected with the inwall of one-level combustion chamber 2 by being arranged on pipe 10 outer ribs 12, the quantity of rib 12 can be provided with according to actual needs, is preferably 4.
The characteristics of this burner are at first to concentrate through pulverized coal concentrator 3 after coal dust enters burner, coal dust after concentrating is through the further enrichment of grid airstream adjuster 9 back coal dusts, turbulent flow strengthens simultaneously, at first light coal dust the one-level combustion chamber 2 from the micro-oil fire flame of oil combustion chamber 4 ejections, because turbulent flow is strong, add coal powder density height in the upper level combustion chamber 2, make one-level combustion chamber 2 in combustion process, be under the reducing atmosphere, the NOx that burning produces is reduced in a large number, thereby has reduced the discharging of pollutant.Owing to adopt a spot of fuel oil can light coal dust in the one-level combustion chamber 2, utilize one-level combustion chamber 2 burned flames to light secondary, three grades coal dust again, thereby can save a large amount of ignition oils.
Claims (3)
1, a kind of low NOx DC micro-oil coal powder burner, comprise burner body (1) and insert the interior one-level combustion chamber (2) of burner body (1), burner body (1) porch is provided with pulverized coal concentrator (3), oil combustion chamber (4) is gone in the one-level combustion chamber (2) from burner body (1) oblique cutting, it is characterized in that: be provided with grid type airstream adjuster (9) in the porch of one-level combustion chamber (2).
2, a kind of low NOx DC micro-oil coal powder burner as claimed in claim 1 is characterized in that: described grid type airstream adjuster (9) has a pipe (10), is interval with a plurality of dividing plates (11) in the pipe (10).
3, a kind of low NOx DC micro-oil coal powder burner as claimed in claim 1 or 2 is characterized in that: described grid type airstream adjuster (9) is connected with the inwall of one-level combustion chamber (2) by being arranged on the outer rib (11) of pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100624029A CN100565007C (en) | 2008-06-04 | 2008-06-04 | A kind of low NOx DC micro-oil coal powder burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100624029A CN100565007C (en) | 2008-06-04 | 2008-06-04 | A kind of low NOx DC micro-oil coal powder burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101290118A CN101290118A (en) | 2008-10-22 |
| CN100565007C true CN100565007C (en) | 2009-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100624029A Expired - Fee Related CN100565007C (en) | 2008-06-04 | 2008-06-04 | A kind of low NOx DC micro-oil coal powder burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100565007C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123110B (en) * | 2011-11-18 | 2015-04-22 | 山西三合盛工业技术有限公司 | Pulverized coal burner for pulverized coal collection and concentration, and burning method |
| CN103672883B (en) * | 2013-12-21 | 2017-02-22 | 哈尔滨锅炉厂有限责任公司 | Grid type swirl burner |
| CN103697468B (en) * | 2014-01-14 | 2016-06-01 | 北京大邦实创节能技术服务有限公司 | One is easy to igniting and combustion stablized burner |
| CN111594871A (en) * | 2020-06-15 | 2020-08-28 | 西安西热锅炉环保工程有限公司 | Oxygen-enriched tiny-oil ignition device and method based on double-air-regulation cyclone burner |
-
2008
- 2008-06-04 CN CNB2008100624029A patent/CN100565007C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101290118A (en) | 2008-10-22 |
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| C14 | Grant of patent or utility model | ||
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Owner name: YINENG ELECTRIC TECHNOLOGY CO., LTD., HANGZHOU Free format text: FORMER OWNER: HANGZHOU YINENG ENERGY-SAVING TECHNOLOGY CO., LTD. Effective date: 20140106 |
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Effective date of registration: 20140106 Address after: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane Patentee after: Yineng Electric Technology Co., Ltd., Hangzhou Address before: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane Patentee before: Hangzhou Yineng Energy-Saving Technology Co., Ltd. |
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| 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: 20091202 Termination date: 20210604 |