CN103216829B - Energy-saving plasma pulverized-coal igniter - Google Patents
Energy-saving plasma pulverized-coal igniter Download PDFInfo
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- CN103216829B CN103216829B CN201310164089.0A CN201310164089A CN103216829B CN 103216829 B CN103216829 B CN 103216829B CN 201310164089 A CN201310164089 A CN 201310164089A CN 103216829 B CN103216829 B CN 103216829B
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- plasma generator
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- coal
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- 239000003245 coal Substances 0.000 title claims abstract description 26
- 239000000498 cooling water Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002817 coal dust Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Plasma Technology (AREA)
Abstract
The invention discloses a kind of energy-saving plasma pulverized-coal igniter, comprise: the plasma generator be connected to each other, start-up burner, the dc source be connected with plasma generator respectively, control system, the accessory system be connected with plasma generator, start-up burner respectively, described dc source is connected with control system.Plasma generator comprises bracket, the dolly be flexibly connected with bracket, the plasma generator body be arranged on dolly.Accessory system comprises cooling water feed system, air supply system, wind and coal powder conveying system; Described air supply system comprises centrifugal blower.The present invention can carry out ignition of the boiler burning, and economical operation, convenience, stable, reliable.
Description
Technical field
The present invention relates to a kind of start-up burner, particularly relating to a kind of energy-saving plasma pulverized-coal igniter for improving boiler operation performance.
Background technology
Traditional boiler combustion system is lighted a fire, combustion-supporting oil mass is high, and production cost is high.In the face of rise and the energy-conservation development trend of crude oil price, minimizing boiler startup and underload help fuel oil, reduce cost of electricity-generating, improve the market competitiveness, have become the task of top priority of each electricity power enterprise.
Summary of the invention
The invention provides a kind of energy-saving plasma pulverized-coal igniter, can ignition of the boiler burning be carried out, and economical operation, convenience, stable, reliable.
The present invention adopts following technical scheme to realize:
Energy-saving plasma pulverized-coal igniter, wherein comprise: the plasma generator be connected to each other, start-up burner, the dc source be connected with plasma generator respectively, control system, the accessory system be connected with plasma generator, start-up burner respectively, described dc source is connected with control system.
Above-mentioned energy-saving plasma pulverized-coal igniter, wherein said plasma generator comprises bracket, the dolly be flexibly connected with bracket, the plasma generator body be arranged on dolly.
Above-mentioned energy-saving plasma pulverized-coal igniter, wherein said plasma generator body comprises outer cover, the hood be connected with outer cover one end, the cathode assembly be arranged in outer cover and hood, is nested with solenoid peripheral in the middle part of cathode assembly, is arranged on the anode of adjacent position, cathode assembly front.
Above-mentioned energy-saving plasma pulverized-coal igniter, wherein said cathode assembly comprises cathodic body, be arranged on the negative electrode rifle of cathodic body tail end, be arranged on cathodic body is connected with negative electrode rifle arcing mechanism, be arranged on rear support ring between cathodic body and arcing mechanism, be separately positioned on watertight aircase, recovery tank, inlet water tank below cathodic body, be arranged on the cathode taps of cathodic body head end, be nested with lining in cathodic body head end periphery, be arranged on front support ring between cathodic body and lining; Described watertight aircase, recovery tank, inlet water tank are connected with accessory system respectively.
Above-mentioned energy-saving plasma pulverized-coal igniter, wherein said start-up burner comprises burner body, the bellows of one end and burner body, the elbow be connected with the bellows other end, described elbow comprises elbow left member and elbow right member, and described elbow left member is connected with the first pipeline, and described elbow right member is connected with second pipe, described first pipeline is connected with accessory system, and described second pipe is connected with plasma generator.
Above-mentioned energy-saving plasma pulverized-coal igniter, the DC power cabinet that wherein said dc source comprises rectifier transformer and is connected with rectifier transformer, described DC power cabinet is connected with plasma generator.
Above-mentioned energy-saving plasma pulverized-coal igniter, wherein said control system comprises switch board and display, and described switch board is provided with communication interface, and switch board is connected with display by communication interface and the data/address bus that is connected with communication interface.
Above-mentioned energy-saving plasma pulverized-coal igniter, wherein said accessory system comprises cooling water feed system, air supply system, wind and coal powder conveying system; Described air supply system comprises centrifugal blower.
The present invention has following good effect:
Present invention reduces energy consumption and the fund cost of boiler operatiopn, the present invention adopts centrifugal blower due to accessory system, therefore invention increases the negative electrode service life of plasma generator, the present invention is owing to comprising plasma generator, therefore the present invention can make boiler from cold conditions, hot dry starting in shorter time, and reach boiler and surely fire at low load, therefore economical operation of the present invention, stable, reliable.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the energy-saving plasma pulverized-coal igniter of the present invention;
Fig. 2 is the plasma generator structural representation of the energy-saving plasma pulverized-coal igniter of the present invention;
Fig. 3 is the start-up burner structural representation of the energy-saving plasma pulverized-coal igniter of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, the energy-saving plasma pulverized-coal igniter of the present invention comprises the plasma generator 1, the start-up burner 3 that are connected to each other, the dc source 2 be connected with plasma generator 1 respectively, control system 4, the accessory system 5 be connected with plasma generator 1, start-up burner 3 respectively, dc source 2 is connected with control system 4.
As shown in Figure 2, plasma generator 1 comprises bracket 11, the dolly 12 be flexibly connected with bracket 11, the plasma generator body 13 be arranged on dolly 12.
Plasma generator body 13 comprises outer cover 131, the hood 132 be connected with outer cover 131 one end, the cathode assembly 133 be arranged in outer cover 131 and hood 132, is nested with solenoid 134 peripheral in the middle part of cathode assembly 133, is arranged on the anode 135 of adjacent position, cathode assembly 133 front.
Cathode assembly 133 comprises cathodic body 1331, be arranged on the negative electrode rifle 1332 of cathodic body 1331 tail end, be arranged on the arcing mechanism 1333 that cathodic body 1331 is connected with negative electrode rifle 1332, be arranged on the rear support ring 1334 between cathodic body 1331 and arcing mechanism 1333, be separately positioned on the watertight aircase 1335 below cathodic body 1331, recovery tank 1336, inlet water tank 1337, be arranged on the cathode taps 1338 of cathodic body 1331 head end, be nested with the lining 1339 in cathodic body 1331 head end periphery, be arranged on the front support ring 1330 between cathodic body 1331 and lining 1339, watertight aircase 1335, recovery tank 1336, inlet water tank 1337 are connected with accessory system 5 respectively.
Plasma generator produces the air plasma of electrical power 50 ~ 150kW.
As shown in Figure 3, start-up burner 3 comprises burner body 31, the bellows 32 of one end and burner body 31, the elbow 33 be connected with bellows 32 other end, described elbow 33 comprises elbow left member 331 and elbow right member 332, and elbow left member 331 is connected with the first pipeline 34, and elbow right member 332 is connected with second pipe 32, first pipeline 34 is connected with accessory system 5, and second pipe 35 is connected with plasma generator 1.Start-up burner 3 and plasma generator 1 support the use, and light the coal dust that accessory system 5 is sent into.
The DC power cabinet 22 that dc source 2 comprises rectifier transformer 21 and is connected with rectifier transformer 21, described DC power cabinet 22 is connected with plasma generator 1.Three-phase 380V AC power is rectified into the direct current supply plasma generator of about 460V, 300A by dc source 2.
Control system 4 comprises switch board 41 and display 42, and described switch board 41 is provided with communication interface, and switch board 41 is connected with display 42 by communication interface and the data/address bus 43 that is connected with communication interface.Control system 4 realizes full digital automatic control system of the present invention.
Accessory system 5 comprises cooling water feed system, air supply system, wind and coal powder conveying system; Air supply system comprises centrifugal blower.
Plasma generator 1 utilizes the direct current contacting ignition arc electric discharge under the high-intensity magnetic field of solenoid 134 controls, air ionization is become plasma, this plasma has included a large amount of active particle, these particle positive and negative charge numerical value are equal, be internally good conductor, externally in neutral, its internal temperature is more than 10000 DEG C.Method that is this plasma jet is mechanical and magnetic compression delivers to the position of igniting, and the coal dust allowing accessory system 5 send into is by this plasma, and owing to being subject to the strong effect of superhigh temperature, pulverized coal particle discharges volatile ingredient rapidly, thus burns rapidly.Because reaction carries out in gas-particle two-phase, the grade of component of mixture there occurs change, makes the increased flame speeds of coal dust, decreases the fire ignition energy impelled required for coal dust firing.Meanwhile, the chemically reactive substance in plasma can accelerate thermal chemical reaction, promotes complete combustion of fuel.
In sum, present invention reduces energy consumption and the fund cost of boiler operatiopn, the present invention adopts centrifugal blower due to accessory system, therefore invention increases the negative electrode service life of plasma generator, the present invention is owing to comprising plasma generator, therefore the present invention can make boiler from cold conditions, hot dry starting in shorter time, and reach boiler and surely fire at low load, therefore economical operation of the present invention, stable, reliable.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (4)
1. energy-saving plasma pulverized-coal igniter, it is characterized in that, comprise: the plasma generator (1) be connected to each other, start-up burner (3), the dc source (2) be connected with plasma generator (1) respectively, control system (4), the accessory system (5) be connected with plasma generator (1), start-up burner (3) respectively, described dc source (2) is connected with control system (4);
Described plasma generator (1) comprises bracket (11), the dolly (12) be flexibly connected with bracket (11), the plasma generator body (13) be arranged on dolly (12);
Described plasma generator body (13) comprises outer cover (131), the hood (132) be connected with outer cover (131) one end, the cathode assembly (133) be arranged in outer cover (131) and hood (132), is nested with at the peripheral solenoid (134) in cathode assembly (133) middle part, is arranged on the anode (135) of cathode assembly (133) adjacent position, front;
Described cathode assembly (133) comprises cathodic body (1331), be arranged on the negative electrode rifle (1332) of cathodic body (1331) tail end, be arranged on the upper arcing mechanism (1333) be connected with negative electrode rifle (1332) of cathodic body (1331), be arranged on the rear support ring (1334) between cathodic body (1331) and arcing mechanism (1333), be separately positioned on the watertight aircase (1335) of cathodic body (1331) below, recovery tank (1336), inlet water tank (1337), be arranged on the cathode taps (1338) of cathodic body (1331) head end, be nested with the lining (1339) in cathodic body (1331) head end periphery, be arranged on the front support ring (1330) between cathodic body (1331) and lining (1339), described watertight aircase (1335), recovery tank (1336), inlet water tank (1337) are connected with accessory system (5) respectively,
Described accessory system (5) comprises cooling water feed system, air supply system, wind and coal powder conveying system; Described air supply system comprises centrifugal blower.
2. energy-saving plasma pulverized-coal igniter as claimed in claim 1, it is characterized in that, described start-up burner (3) comprises burner body (31), the bellows (32) that one end is connected with burner body (31), the elbow (33) be connected with bellows (32) other end, described elbow (33) comprises elbow left member (331) and elbow right member (332), described elbow left member (331) is connected with the first pipeline (34), described elbow right member (332) is connected with second pipe (32), described first pipeline (34) is connected with accessory system (5), described second pipe (35) is connected with plasma generator (1).
3. energy-saving plasma pulverized-coal igniter as claimed in claim 1, it is characterized in that, the DC power cabinet (22) that described dc source (2) comprises rectifier transformer (21) and is connected with rectifier transformer (21), described DC power cabinet (22) is connected with plasma generator (1).
4. energy-saving plasma pulverized-coal igniter as claimed in claim 1, it is characterized in that, described control system (4) comprises switch board (41) and display (42), described switch board (41) is provided with communication interface, and switch board (41) is connected with display (42) by communication interface and the data/address bus (43) that is connected with communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310164089.0A CN103216829B (en) | 2013-05-07 | 2013-05-07 | Energy-saving plasma pulverized-coal igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310164089.0A CN103216829B (en) | 2013-05-07 | 2013-05-07 | Energy-saving plasma pulverized-coal igniter |
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| Publication Number | Publication Date |
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| CN103216829A CN103216829A (en) | 2013-07-24 |
| CN103216829B true CN103216829B (en) | 2016-01-06 |
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| CN201310164089.0A Active CN103216829B (en) | 2013-05-07 | 2013-05-07 | Energy-saving plasma pulverized-coal igniter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116293786B (en) * | 2023-04-17 | 2024-03-08 | 鑫泓淼机械科技(山东)有限公司 | Contact type efficient electric energy converter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2473478Y (en) * | 2001-02-27 | 2002-01-23 | 烟台开发区龙源电力燃烧控制工程有限公司 | Combined cathode for plasma ignitor |
| JP2004012124A (en) * | 2002-06-05 | 2004-01-15 | Babcock Borsig Power Systems Gmbh | Shutoff device for pulverized coal burner of pulverized coal furnace |
| CN200947700Y (en) * | 2006-04-10 | 2007-09-12 | 徐州燃烧控制研究院有限公司 | Plasma generator |
| CN201142781Y (en) * | 2008-01-08 | 2008-10-29 | 纪崇甲 | High thermal efficiency DC arc plasma generator |
| CN202209505U (en) * | 2011-07-22 | 2012-05-02 | 烟台龙源电力技术股份有限公司 | Plasmatron fixing rack |
| CN203286562U (en) * | 2013-05-07 | 2013-11-13 | 国家电网公司 | Energy-saving type plasma pulverized coal ignition burner |
-
2013
- 2013-05-07 CN CN201310164089.0A patent/CN103216829B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2473478Y (en) * | 2001-02-27 | 2002-01-23 | 烟台开发区龙源电力燃烧控制工程有限公司 | Combined cathode for plasma ignitor |
| JP2004012124A (en) * | 2002-06-05 | 2004-01-15 | Babcock Borsig Power Systems Gmbh | Shutoff device for pulverized coal burner of pulverized coal furnace |
| CN200947700Y (en) * | 2006-04-10 | 2007-09-12 | 徐州燃烧控制研究院有限公司 | Plasma generator |
| CN201142781Y (en) * | 2008-01-08 | 2008-10-29 | 纪崇甲 | High thermal efficiency DC arc plasma generator |
| CN202209505U (en) * | 2011-07-22 | 2012-05-02 | 烟台龙源电力技术股份有限公司 | Plasmatron fixing rack |
| CN203286562U (en) * | 2013-05-07 | 2013-11-13 | 国家电网公司 | Energy-saving type plasma pulverized coal ignition burner |
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| CN103216829A (en) | 2013-07-24 |
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