CN203286562U - Energy-saving type plasma pulverized coal ignition burner - Google Patents

Energy-saving type plasma pulverized coal ignition burner Download PDF

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Publication number
CN203286562U
CN203286562U CN2013202408764U CN201320240876U CN203286562U CN 203286562 U CN203286562 U CN 203286562U CN 2013202408764 U CN2013202408764 U CN 2013202408764U CN 201320240876 U CN201320240876 U CN 201320240876U CN 203286562 U CN203286562 U CN 203286562U
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CN
China
Prior art keywords
energy
negative electrode
plasma generator
plasma
electrode body
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Expired - Lifetime
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CN2013202408764U
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Chinese (zh)
Inventor
施侠
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State Grid Corp of China SGCC
Shanghai Municipal Electric Power Co
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State Grid Corp of China SGCC
Shanghai Municipal Electric Power Co
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Priority to CN2013202408764U priority Critical patent/CN203286562U/en
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Abstract

The utility model discloses an energy-saving type plasma pulverized coal ignition burner. The energy-saving type plasma pulverized coal ignition burner comprises a plasma generator, an ignition burner body, a direct-current power source, a control system and an auxiliary system, wherein the plasma generator and the ignition burner body are connected with each other, the direct-current power source and the control system are connected with the plasma generator, the auxiliary system is connected with the plasma generator and the ignition burner body, and the direct-current power source is connected with the control system. The plasma generator comprises a bracket, a trolley which is movably connected with the bracket, and a plasma generator body arranged on the trolley. The auxiliary system comprises a cooling water feed system, an air feed system and an air and pulverized coal conveying system. The air feed system comprises a centrifugal fan. The energy-saving type plasma pulverized coal ignition burner can carry out ignition and combustion of a boiler, and is economical in operation, convenient to operate, and stable and reliable in operation.

Description

Energy-saving plasma pulverized-coal igniter
Technical field
The utility model relates to a kind of start-up burner, relates in particular to a kind of energy-saving plasma pulverized-coal igniter for improving boiler operation performance.
Background technology
Traditional boiler combustion system igniting, combustion-supporting high with oil mass, production cost is high.In the face of the rise of crude oil price and energy-conservation development trend, reduce boiler startup and underload and help fuel oil, reduce cost of electricity-generating, improve the market competitiveness, become the task of top priority of each electricity power enterprise.
The utility model content
The utility model provides a kind of energy-saving plasma pulverized-coal igniter, can carry out ignition of the boiler burning, and economical operation, convenience, stable, reliably.
The utility model adopts following technical scheme to realize:
Energy-saving plasma pulverized-coal igniter, wherein comprise: interconnected plasma generator, start-up burner, the dc source that is connected with plasma generator respectively, control system, the accessory system that is connected with plasma generator, start-up burner respectively, described dc source is connected with control system.
The dolly that above-mentioned energy-saving plasma pulverized-coal igniter, wherein said plasma generator comprise carriage, be flexibly connected with carriage, be arranged on the plasma generator body on dolly.
Above-mentioned energy-saving plasma pulverized-coal igniter, wherein said plasma generator body comprises outer cover, the hood that is connected with outer cover one end, be arranged on cathode assembly in outer cover and hood, be nested with at the peripheral solenoid in cathode assembly middle part, is arranged on the anode of adjacent position, cathode assembly the place ahead.
Above-mentioned energy-saving plasma pulverized-coal igniter, wherein said cathode assembly comprises the negative electrode body, be arranged on the negative electrode rifle of negative electrode body tail end, be arranged on the arcing mechanism that is connected with the negative electrode rifle on the negative electrode body, be arranged on rear support ring between negative electrode body and arcing mechanism, be separately positioned on watertight aircase, recovery tank, the inlet water tank of negative electrode body below, be arranged on negative electrode body head end cathode taps, be nested with lining in negative electrode body head end periphery, be arranged on the front support ring between negative electrode 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 that is connected with the bellows other end, described elbow comprises right of left of elbow and elbow, and left of described elbow is connected with the first pipeline, and right of described elbow is connected with second pipe, described the first pipeline is connected with accessory system, and described second pipe is connected with plasma generator.
Above-mentioned energy-saving plasma pulverized-coal igniter, wherein said dc source comprise rectifier transformer and the DC power cabinet that is connected with rectifier transformer, and 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 reaches the data/address bus that is connected with communication interface and is connected with display by 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 utlity model has following good effect:
The utility model has reduced energy consumption and the fund cost of boiler operatiopn, the utility model is because accessory system adopts centrifugal blower, therefore the utility model negative electrode service life of having improved plasma generator, the utility model is owing to comprising plasma generator, therefore the utility model can make boiler from cold conditions, dry starting in shorter time under hot, and reach boiler surely combustion under underload, so the utility model economical operation, stable, reliable.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the energy-saving plasma pulverized-coal igniter of the utility model;
Fig. 2 is the plasma generator structural representation of the energy-saving plasma pulverized-coal igniter of the utility model;
Fig. 3 is the start-up burner structural representation of the energy-saving plasma pulverized-coal igniter of the utility model.
The specific embodiment
, below in conjunction with accompanying drawing, by describing a better specific embodiment in detail, the utility model is further elaborated.
As shown in Figure 1, the energy-saving plasma pulverized-coal igniter of the utility model comprises interconnected plasma generator 1, start-up burner 3, the dc source 2 that is connected with plasma generator 1 respectively, control system 4, the accessory system 5 that is 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 carriage 11, the dolly 12 that is flexibly connected with carriage 11, is arranged on the plasma generator body 13 on dolly 12.
Plasma generator body 13 comprises outer cover 131, the hood 132 that is connected with outer cover 131 1 ends, be arranged on cathode assembly 133 in outer cover 131 and hood 132, be nested with the solenoid 134 in cathode assembly 133 peripheries, middle part, is arranged on the anode 135 of cathode assembly 133 adjacent positions, the place ahead.
cathode assembly 133 comprises negative electrode body 1331, be arranged on the negative electrode rifle 1332 of negative electrode body 1331 tail ends, be arranged on the arcing mechanism 1333 that is connected with negative electrode rifle 1332 on negative electrode body 1331, be arranged on the rear support ring 1334 between negative electrode body 1331 and arcing mechanism 1333, be separately positioned on the watertight aircase 1335 of negative electrode body 1331 belows, recovery tank 1336, inlet water tank 1337, be arranged on the cathode taps 1338 of negative electrode body 1331 head ends, be nested with the lining 1339 in negative electrode body 1331 head end peripheries, be arranged on the front support ring 1330 between negative electrode 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 that is connected with bellows 32 other ends, described elbow 33 comprises right 332, left 331, elbow and elbow, and left 331, elbow is connected with the first pipeline 34, and right 332, elbow is connected with second pipe 32, the first pipeline 34 is connected with accessory system 5, and second pipe 35 is connected with plasma generator 1.Start-up burner 3 supports the use with plasma generator 1, lights the coal dust that accessory system 5 is sent into.
Dc source 2 comprises rectifier transformer 21 and the DC power cabinet 22 that is connected with rectifier transformer 21, and described DC power cabinet 22 is connected with plasma generator 1.Dc source 2 is supplied with plasma generator with the direct current that three-phase 380V AC power is rectified into 460V, 300A left and right.
Control system 4 comprises switch board 41 and display 42, and described switch board 41 is provided with communication interface, and switch board 41 reaches the data/address bus 43 that is connected with communication interface and is connected with display 42 by communication interface.Control system 4 realizes full digital automatic control system of the present utility model.
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 discharge under the high-intensity magnetic field of solenoid 134 is controlled, air ionization is become plasma, this plasma contains a large amount of active particles, these particle positive and negative charge numerical value equate, be internally good conductor, externally be neutral, its internal temperature is over 10000 ℃.This plasma jet is delivered to the position of igniting with the method for machinery and magnetic compression, allowed the coal dust that accessory system 5 is sent into pass through this plasma, due to the strong effect that is subject to superhigh temperature, pulverized coal particle discharges rapidly volatile ingredient, thus burning rapidly.Because reaction is to carry out in the gas-solid two-phase, variation has occurred in the grade of component of mixture, and the burning velocity of coal dust is accelerated, and has reduced and has impelled the needed fire ignition energy of coal dust firing.Simultaneously, the chemically reactive substance in plasma can accelerate thermal chemical reaction, promotes complete combustion of fuel.
In sum, the utility model has reduced energy consumption and the fund cost of boiler operatiopn, the utility model is because accessory system adopts centrifugal blower, therefore the utility model negative electrode service life of having improved plasma generator, the utility model is owing to comprising plasma generator, therefore the utility model can make boiler from cold conditions, dry starting in shorter time under hot, and reaches boiler surely combustion under underload, so the utility model economical operation, stable, reliable.
, although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.

Claims (8)

1. energy-saving plasma pulverized-coal igniter, it is characterized in that, comprise: interconnected plasma generator (1), start-up burner (3), the dc source (2) that is connected with plasma generator (1) respectively, control system (4), the accessory system (5) that is connected with plasma generator (1), start-up burner (3) respectively, described dc source (2) is connected with control system (4).
2. energy-saving plasma pulverized-coal igniter as claimed in claim 1, it is characterized in that, the dolly (12) that described plasma generator (1) comprises carriage (11), be flexibly connected with carriage (11), be arranged on the plasma generator body (13) on dolly (12).
3. energy-saving plasma pulverized-coal igniter as claimed in claim 2, it is characterized in that, described plasma generator body (13) comprises outer cover (131), the hood (132) that is connected with outer cover (131) one ends, be arranged on cathode assembly (133) in outer cover (131) and hood (132), be 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, the place ahead.
4. energy-saving plasma pulverized-coal igniter as claimed in claim 3, it is characterized in that, described cathode assembly (133) comprises negative electrode body (1331), be arranged on the negative electrode rifle (1332) of negative electrode body (1331) tail end, be arranged on the upper arcing mechanism (1333) that is connected with negative electrode rifle (1332) of negative electrode body (1331), be arranged on the rear support ring (1334) between negative electrode body (1331) and arcing mechanism (1333), be separately positioned on the watertight aircase (1335) of negative electrode body (1331) below, recovery tank (1336), inlet water tank (1337),
Be arranged on negative electrode body (1331) head end cathode taps (1338), be nested with lining (1339) in negative electrode body (1331) head end periphery, be arranged on the front support ring (1330) between negative electrode body (1331) and lining (1339); Described watertight aircase (1335), recovery tank (1336), inlet water tank (1337) are connected with accessory system (5) respectively.
5. 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) of one end and burner body (31), the elbow (33) that is connected with bellows (32) other end, described elbow (33) comprises elbow left (331) and right of elbow (332), described elbow left (331) is connected with the first pipeline (34), described elbow right (332) is connected with second pipe (32), described the first pipeline (34) is connected with accessory system (5), described second pipe (35) is connected with plasma generator (1).
6. energy-saving plasma pulverized-coal igniter as claimed in claim 1, it is characterized in that, described dc source (2) comprises rectifier transformer (21) and the DC power cabinet (22) that is connected with rectifier transformer (21), and described DC power cabinet (22) is connected with plasma generator (1).
7. 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) reaches the data/address bus (43) that is connected with communication interface and is connected with display (42) by communication interface.
8. energy-saving plasma pulverized-coal igniter as claimed in claim 1, is characterized in that, 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.
CN2013202408764U 2013-05-07 2013-05-07 Energy-saving type plasma pulverized coal ignition burner Expired - Lifetime CN203286562U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013202408764U CN203286562U (en) 2013-05-07 2013-05-07 Energy-saving type plasma pulverized coal ignition burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013202408764U CN203286562U (en) 2013-05-07 2013-05-07 Energy-saving type plasma pulverized coal ignition burner

Publications (1)

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CN203286562U true CN203286562U (en) 2013-11-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216829A (en) * 2013-05-07 2013-07-24 国家电网公司 Energy-saving-type plasma pulverized coal ignition burner
CN105066123A (en) * 2015-08-17 2015-11-18 南京君铎环保科技有限公司 Plasma ignition composite multi-channel combustion device for rotary kiln

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216829A (en) * 2013-05-07 2013-07-24 国家电网公司 Energy-saving-type plasma pulverized coal ignition burner
CN103216829B (en) * 2013-05-07 2016-01-06 国家电网公司 Energy-saving plasma pulverized-coal igniter
CN105066123A (en) * 2015-08-17 2015-11-18 南京君铎环保科技有限公司 Plasma ignition composite multi-channel combustion device for rotary kiln

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Granted publication date: 20131113