CN201615480U - Microwave plasma preheating pulverized coal gasification small oil gun ignition device of pulverized coal fired boiler - Google Patents
Microwave plasma preheating pulverized coal gasification small oil gun ignition device of pulverized coal fired boiler Download PDFInfo
- Publication number
- CN201615480U CN201615480U CN2010201101577U CN201020110157U CN201615480U CN 201615480 U CN201615480 U CN 201615480U CN 2010201101577 U CN2010201101577 U CN 2010201101577U CN 201020110157 U CN201020110157 U CN 201020110157U CN 201615480 U CN201615480 U CN 201615480U
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- oil gun
- small oil
- pulverized coal
- microwave plasma
- ignition device
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Abstract
The utility model relates to a microwave plasma preheating pulverized coal gasification small oil gun ignition device of a pulverized coal fired boiler. The small oil gun ignition device comprises a burner and a small oil gun igniter, wherein the burner is provided with a primary air tube and a secondary air tube, the small oil gun igniter is fixed on the primary air tube and disposed in the middle of the primary air tube, and two microwave plasma generators with opposite positions are fixed on the primary air tube and are disposed in the middles of the small oil gun igniter and an inlet of the primary air tube. The small oil gun ignition device heats pulverized coal fired boiler sufficiently, increases flame temperature greatly and accelerates combustion of pulverized coal. Compared with a small oil gun ignition device adopting electrode plasma, the small oil gun ignition device has no electrode loss and consumption. As a microwave field thereof is located between a pulverized coal inlet and flame of the small oil gun igniter, microwave leakage can not be caused.
Description
Technical field
The utility model relates to a kind of combustion preheater device of pulverized-coal fired boiler, particularly a kind of pulverized-coal fired boiler microwave plasma preheating coal dust gasification small oil gun igniter.
Background technology
Present pulverized-coal fired boiler need be with igniting to the coal dust heating of lighting a fire, and the igniter of using always has following three kinds: a kind of is big grease gun igniting device, and its shortcoming is that fuel consumption is big, the operating cost height.The 2nd, plasma ignition device, its shortcoming is the direct-current arc that needs 200KW, and equipment investment is big, and electrode consumes easily, and the negative electrode average life span has only 200 hours, and ature of coal requires high.The 3rd, Gasifying Small Oil Gun igniter, its advantage are that oil consumption is low, and operating cost is low, and its shortcoming is that firing temperature is low, and combustion efficiency is poor.
Summary of the invention
The utility model is in order to overcome the deficiency of above technology, and a kind of firing temperature height, pulverized-coal fired boiler microwave plasma preheating coal dust gasification small oil gun igniter that combustion efficiency is good are provided.
The utility model is realized by following measure:
Pulverized-coal fired boiler microwave plasma preheating coal dust gasification small oil gun igniter of the present utility model, comprise the burner that has airduct and secondary air channel, be fixed on the small oil gun igniter on the airduct one time, the small oil gun igniter is positioned at the middle part of an airduct, its special feature is: be fixed with two relative microwave plasma-generators of position on the airduct, described microwave plasma-generator is positioned at the middle part of a small oil gun igniter and an airduct inlet.
Pulverized-coal fired boiler microwave plasma preheating coal dust gasification small oil gun igniter of the present utility model, the port of export of described microwave plasma-generator is fixed with a ceramic plug that is used to filter microwave, is used to prevent that coal dust from entering in the microwave plasma-generator.
Principle of the present utility model is: high-intensity microwave can puncture air and produce plasma, flame is that light current is from material simultaneously, coal dust can produce static in pipe conveying procedure, coal dust firing intermediate product--carbon black-main body composition is graphite-excellent microwave absorbing material, so can use microwave to produce plasma coal dust is shifted to an earlier date preheating, thereby save part with oil, make a nearlyer step of igniter " with electric generation ".
Pulverized-coal fired boiler microwave plasma preheating coal dust gasification small oil gun igniter of the present utility model, because two microwave plasma-generators are positioned at the airduct both sides one time, can fully carry out the heating second time to coal dust, the coal dust temperature is raise, heat through the igniting of Gasifying Small Oil Gun again, can improve flame temperature greatly, accelerate the burning of coal dust, improve efficiency of fire coal.
The beneficial effects of the utility model are, can heat fully coal dust, improve flame temperature greatly,, improve efficiency of fire coal; Comparing with electrode plasma does not have export license, and microwave field can not cause microwave to reveal between coal powder entrance and small oil gun flame.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model
Among the figure, 1 airducts, 2 secondary air channels, 3 burners, 4 small oil gun igniters, 5 microwave plasma-generators, 6 ceramic plugs.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done concrete description.
As shown in Figure 1, pulverized-coal fired boiler microwave plasma preheating coal dust gasification small oil gun igniter of the present utility model includes burner 3, is fixed on an airduct 1, secondary air channel 2, small oil gun igniter 4 and two microwave plasma-generators 5 on the burner 3.The small oil gun igniter is positioned at the middle part of burner, two microwave plasma-generators are positioned at the middle part of a small oil gun igniter and an airduct inlet, two microwave plasma-generator positions are relative, the port of export of microwave plasma-generator is fixed with a pottery sieve 6, the microwave that microwave plasma-generator produces enters in the burner through the pottery sieve, the high electric field breakdown wind powder mixture of high-intensity microwave field excitation produces space electric arc, thereby coal dust is heated.High-intensity microwave can puncture air generation plasma simultaneously, can combine with coal dust, and coal dust is fully burned.The power of microwave plasma-generator is generally 200-300KW, and frequency is 1200MHz.
Coal dust is after the microwave plasma heating, and temperature is increased to 500-700 ℃ by original 100-200 ℃; Coal dust is after small oil gun igniting, and flame temperature is increased to 2800-3200 ℃ by original 1500 ℃; Fuel consume reduces 30-50%.
Claims (2)
1. pulverized-coal fired boiler microwave plasma preheating coal dust gasification small oil gun igniter, comprise the burner that has airduct and secondary air channel, be fixed on the small oil gun igniter on the airduct one time, the small oil gun igniter is positioned at the middle part of an airduct, it is characterized in that: be fixed with two relative microwave plasma-generators of position on the airduct, described microwave plasma-generator is positioned at the middle part of a small oil gun igniter and an airduct inlet.
2. pulverized-coal fired boiler microwave plasma preheating coal dust gasification small oil gun igniter according to claim 1, it is characterized in that: the port of export of described microwave plasma-generator is fixed with a ceramic plug that is used to filter microwave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201101577U CN201615480U (en) | 2010-02-09 | 2010-02-09 | Microwave plasma preheating pulverized coal gasification small oil gun ignition device of pulverized coal fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201101577U CN201615480U (en) | 2010-02-09 | 2010-02-09 | Microwave plasma preheating pulverized coal gasification small oil gun ignition device of pulverized coal fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615480U true CN201615480U (en) | 2010-10-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201101577U Expired - Fee Related CN201615480U (en) | 2010-02-09 | 2010-02-09 | Microwave plasma preheating pulverized coal gasification small oil gun ignition device of pulverized coal fired boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN201615480U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103210702A (en) * | 2011-01-26 | 2013-07-17 | 深圳市泓耀环境科技发展股份有限公司 | Adding method for combustion additive for combustion of liquid fuel and plasmatron device therefor |
| CN103244954B (en) * | 2013-06-02 | 2015-03-18 | 衢州昀睿工业设计有限公司 | Plasma heavy oil burner |
| CN104566454A (en) * | 2014-12-16 | 2015-04-29 | 广东新优威印刷装备科技有限公司 | Boiler ignition method |
| CN108087871A (en) * | 2018-01-26 | 2018-05-29 | 山东大学 | A kind of coal burner |
-
2010
- 2010-02-09 CN CN2010201101577U patent/CN201615480U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103210702A (en) * | 2011-01-26 | 2013-07-17 | 深圳市泓耀环境科技发展股份有限公司 | Adding method for combustion additive for combustion of liquid fuel and plasmatron device therefor |
| CN103244954B (en) * | 2013-06-02 | 2015-03-18 | 衢州昀睿工业设计有限公司 | Plasma heavy oil burner |
| CN104566454A (en) * | 2014-12-16 | 2015-04-29 | 广东新优威印刷装备科技有限公司 | Boiler ignition method |
| CN108087871A (en) * | 2018-01-26 | 2018-05-29 | 山东大学 | A kind of coal burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG YINGDIAN ENERGY SAVING TECHNOLOGY CO., LT Free format text: FORMER OWNER: JI'NAN HIPOWER TECHNOLOGY CO., LTD. Effective date: 20140423 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 250101 JINAN, SHANDONG PROVINCE TO: 250000 JINAN, SHANDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140423 Address after: 250000 Shandong city of Ji'nan province high tech Zone Shun Road No. 1 Building No. 5, Qilu Software Park (Business Plaza E block, room A515) Patentee after: SHANDONG ECO-POWER ENERGY SAVING SCIENCE & TECHNOLOGY CO., LTD. Address before: 250101 Shandong city of Ji'nan province high tech Zone Xinyu Road, San Qing century wealth center block B2 No. 602 Patentee before: Jinan Hipower Technology Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160203 Address after: 250000 Shandong city of Ji'nan province high tech Zone Shun Road No. 109 Department of building 302-1 Patentee after: Shandong Environmental Protection Technology Co., Ltd. Address before: 250000 Shandong city of Ji'nan province high tech Zone Shun Road No. 1 Building No. 5, Qilu Software Park (Business Plaza E block, room A515) Patentee before: SHANDONG ECO-POWER ENERGY SAVING SCIENCE & 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: 20101027 Termination date: 20180209 |