CN201302176Y - Plasma generator used for igniting power station coal-burning boiler and cleaning heat source of stove - Google Patents
Plasma generator used for igniting power station coal-burning boiler and cleaning heat source of stove Download PDFInfo
- Publication number
- CN201302176Y CN201302176Y CNU2008202207798U CN200820220779U CN201302176Y CN 201302176 Y CN201302176 Y CN 201302176Y CN U2008202207798 U CNU2008202207798 U CN U2008202207798U CN 200820220779 U CN200820220779 U CN 200820220779U CN 201302176 Y CN201302176 Y CN 201302176Y
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- cathode
- cooling water
- anode bodies
- anode
- segment
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- Expired - Fee Related
Links
- 238000004140 cleaning Methods 0.000 title abstract description 4
- 239000000498 cooling water Substances 0.000 claims abstract description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- 239000003245 coal Substances 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 238000001354 calcination Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000010793 electronic waste Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Plasma Technology (AREA)
Abstract
The utility model relates to the technique of power station coal-burning boiler ignition and heat source cleaning of a boiler, which provides a plasma generator for igniting power station coal-burning boiler and cleaning heat source of stove, wherein an anode block of a generator anode body is an increasing diameter structure after reducing diameters, a center arc output cavity of an anode body 1 is a jet tube type structure which is firstly contracted and secondly expanded, a cathode body 4 is a thick-wall cylinder of a hollow cavity structure, whose center arc output cavity is a jet tube type structure formed by a rear reducing diameter segment, an expanding segment and a front flattening segment, an anode body and a cathode body are respectively arranged for providing air passages of compressed air or nitrogen, a cathode body cooling water pipe 6 is a front and a rear two-segment structures which are connected into one body through a connecting chassis 9 on the rear end of the cathode body, and the front segment and the rear segment of cathode body cooling water pipes are led to communicate through two ring-shaped cavities of the connecting chassis.
Description
Technical field
The utility model relates to coal burning boiler of power station igniting and the clean technology of heat source of stove, relates generally to a kind of plasma generator that is used for coal burning boiler of power station igniting and the clean thermal source of stove.
Background technology
Fuel ignition equipment is adopted in traditional pulverized-coal fired boiler starting ignition usually, after earlier the Pulverized Coal fired Boiler Furnace temperature being elevated to setting value, possess the powder of throwing burning condition, restart pulverized coal preparation system, coal dust sprays in the burner hearth from burner nozzle and is continued to light, and provides thermal source to boiler; Tradition stove thermal source generally adopts fuel oil or gas mode of heating.
At present, the clean technology of heat source of plasma ignition and stove is all being studied by various countries scientific research institution, and is applied in some thermal power plants and relevant industries stove; All have many defectives for boiler Plasma Firing Technology and the clean plasma technology of heat source of stove, problem mainly shows in the application: power output is little; Plasma generator negative electrode, anode weak point in service life, normal working hours is short effectively continuously; Power adjusting is poor, is used for the boiler coal-ash igniting, and is narrow to coal accommodation; Be used for stove plasma thermal source, the thermal efficiency is low.
Summary of the invention
The purpose of this utility model is to propose a kind of plasma generator that is used for coal burning boiler of power station igniting and the clean thermal source of stove, to solve the problem that above-mentioned Plasma Firing Technology occurs in application.
The utility model is finished the technical scheme that its invention task taked: a kind of plasma generator that is used for coal burning boiler of power station igniting and stove cleaning thermal source mainly includes anode bodies, anode bodies cooling water channel and cooling water cavity, air flue and cathode, cathode cooling water channel; Wherein, the anode block of anode bodies is a convergent footpath back flaring gauge structure, anode bodies the defeated arc chamber in defeated arc chamber, interior pipe formation center and center of magnetic conduction heat-resisting alloy material of sleeve portion be the jet tube structure that convergence is earlier spread again; Cathode is the heavy wall cylinder of cavity structure, the jet tube structure that undergauge section, expansion segment, preceding flat segments constitute after serving as reasons in the defeated arc chamber that its center cavity constitutes; Adopt the parallel gas feed structure, promptly be respectively arranged with the air flue that compressed air or nitrogen are provided for anode bodies, cathode; The spirally inlet air ring UNICOM of the venthole of cathode air flue and cathode also links the spiral fumarole on it and the defeated arc chamber, center of cathode the rear end that cathode spirally inlet air ring is arranged on cathode; In the cathode rear end connection base is set, connects base and cathode rear end thread connection, the connection base has or is connected with cathode spirally inlet air ring; The cathode cooling water channel is for by connecting front and back two-stage structure that base is connected as a single entity and by connecting two toroidal cavities that base had with the two sections cathode cooling water channels in front and back UNICOM; Wherein, the back segment in cathode recirculated cooling water road is made of three layers of pipe, and its leading portion is made of the outer wall of two-layer pipe and cathode; This structural design makes and the length that can make generator as required promptly needs only the connection base back segment metal tube that adopts appropriate length as required.
Be provided with proportional control valve in order to control anode bodies and the defeated arc chamber air inlet of cathode pole-face and cathode center, the air inlet ratio of distributing the two, thereby regulate the compressed air pressure linear change that enters defeated arc chamber, cathode center and anode bodies and cathode pole-face, make plasma arc open the defeated arc chamber play of arc control point at the cathode center, avoid the cathode center to fail the fixedly calcination of arc chamber wall, prolong cathode service life significantly;
The clean thermal source plasma generator of coal burning boiler of power station that the utility model proposes and stove, power output is big and adjustable range is wide, is used for the boiler coal-ash igniting, is applicable to brown coal, bituminous coal, meager coal, anthracite; Be used for the clean thermal source of stove, be applicable to and handle poisonous and harmful medical waste, electronic waste, adopt nitrogen to do plasma medium, can produce and avoid the clean hot environment of burning, help cracking or disinfect; Plasma generator negative electrode, anode reach hundreds of hours service life, and it is convenient to change; Power output is big, thermal efficiency height.
Technical characterstic of the present utility model is:
1), the utility model adopts two-way compressed air (or nitrogen) supply technology, replace existing single channel air feed principle, enlarged the generator ion-conductance from quantity, increased the flame burning calorific value, strengthened the plasma arc temperature, improved the power of plasma generator, power can reach hundreds of kilowatts, and the coal scope of application is wideer.
2), the plasma arc that sprays from the anode block spout enters defeated arc chamber, anode bodies center and plays regime flow and pressure effect, make defeated arc process stabilization, even, carry on inner edge compression limit, defeated arc chamber at the center, and plasma arc energy attenuation speed is slow, defeated arc momentum is big, defeated arc distance.
3), with restraining effuser formula structure again, circulating water cooling system earlier; The control and regulation of utilization proportional control valve enter the compressed air pressure linear change of defeated arc chamber, cathode center and negative electrode and anode pole-face, plasma arc opens the defeated arc chamber play at the cathode center of arc control point, avoid the cathode center to fail the fixedly calcination of arc chamber wall, increased electric arc at the defeated arc chamber of cathode center stable operation range, increase substantially negative electrode service life, changed existing single chamber air inlet, fixedly pole-face opens the principle of arc calcination, makes short and operation a period of time in negative electrode service life because cathode burning corrosion and the problem of current interruption.
4), by the connection base being set in the cathode rear end, make the length that can make generator as required easily, promptly as long as adopt a plurality of metal tubes of appropriate length as required.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure, 1, anode bodies, 2, anode bodies spirally inlet air ring, 3, anode bodies cooling water channel, 4, cathode, 5, cathode spirally inlet air ring, 6, cathode cooling water channel, 7, water inlet pipe, 8, return pipe, 9, connect base, 10, the anode bodies air inlet pipe, 11, the cathode air inlet pipe, 12, protective cover, 13, anode bodies cooling water cavity, 14, the cathode air flue, 15, the anode bodies air flue.
The specific embodiment
The embodiment that provides in conjunction with the accompanying drawings is illustrated the utility model:
As shown in Figure 1, the utility model plasma generator mainly includes anode bodies 1, anode bodies cooling water channel 3, anode bodies cooling water cavity 13, anode bodies air flue 15 and cathode 4, cathode cooling water channel 6, cathode air flue 14; Wherein, anode bodies 1 is positioned at the front end of generator, anode bodies is made up of the anode block of convergent footpath back hole enlargement and the sleeve portion of anode block front end, and the defeated arc chamber in defeated arc chamber, the interior pipe formation center of sleeve portion and center is the jet tube structure of diffusion again of convergence earlier, and interior tubing matter is alloy; Cavity between the sleeve portion inner and outer pipe constitutes anode bodies cooling water cavity 13 and makes anode bodies cooling water cavity 13 and anode bodies cooling water channel 3 UNICOMs, and cool off in antianode piece and defeated arc chamber; Cathode 4 is positioned at the anode bodies rear end, and the gap between its front end face and the anode bodies rear end face constitutes pole-face; Spacing between cathode and the anode bodies can be regulated, and separates with insulating materials between anode bodies and the cathode.Cathode 4 is the heavy wall cylinder of cavity structure, the jet tube structure that undergauge section, expansion segment, preceding flat segments constitute after serving as reasons in the defeated arc chamber that its center cavity constitutes, and the cathode material is an alloy; Adopt two-way compressed air (or nitrogen) gas-supplying structure, promptly be respectively arranged with the air flue that compressed air or nitrogen are provided for anode bodies 1, cathode 4; Anode bodies air flue 15 constitutes for the inner chamber by sleeve type structure, its rear end is communicated with air inlet pipe 10, and the venthole of anode bodies air flue is on the anode bodies spirally inlet air ring 2 of air flue front end and the pole-face that the gap constitutes between spiral fumarole and anode bodies and the cathode on it, the air inlet of anode bodies are communicated with; Make compressed air or nitrogen be entered pole-face and be failed the arc chamber by the center of anode bodies by anode spirally inlet air ring venthole and outwards spray, promptly the compressed air spiral enters anode and negative electrode pole-face, after being ionized, from the ejection of anode bodies spout, forms plasma-arc; Cathode air flue 14 is the central tube of generator, its front end is by connecting base 10 and negative electrode spirally inlet air ring 5 UNICOMs, negative electrode spirally inlet air ring 5 be connected base 9 thread connection, be positioned at porch, cathode rear end, has uniform spiral fumarole on the negative electrode spirally inlet air ring 5, the spiral fumarole is connected with defeated arc chamber, the center of cathode, makes compressed air or nitrogen be rotated into the defeated arc chamber, center of cathode by the spiral puff prot; The cathode rear end be connected base 9 thread connection, the cathode front end is supported by anode bodies spirally inlet air ring 2, anode bodies spirally inlet air ring 2 adopts insulating materials, and cathode and anode bodies insulation are separated; Adopt the proportional control valve control and regulation to enter the compressed air or the nitrogen pressure linear change of defeated arc chamber, cathode center and cathode and anode bodies pole-face, distribute anode bodies and the air inflow of cathode and the air inlet ratio of the two, thereby regulate the compressed air or the nitrogen pressure linear change that enter cathode inner chamber and cathode and anode bodies pole-face, make the variation of moving about of defeated arc chamber, cathode center plasma, plasma-arc opens the arc control point in the play of cathode inner chamber, avoid the cathode center to fail the fixedly calcination of arc chamber wall, increase defeated arc chamber, cathode center calcination face, prolong cathode service life significantly.Described cathode recirculated cooling water road is for by connecting front and back two-stage structure that base is connected as a single entity and by connecting two toroidal cavities that base had with the two sections cathode cooling water channels in front and back UNICOM; Two ring-shaped cavities that cathode recirculated cooling water road is had constitute cathode cooling water intake tunnel and cathode cooling water backwater channel respectively; The front end of cathode cooling water intake tunnel and the front end UNICOM of cooling water backwater channel; Cavity in its back segment of cathode cooling water intake tunnel is served as reasons between pipe and the middle tube constitutes, and the leading portion of cooling water intake tunnel is made of the gap between middle tube and the cathode outer wall; Cathode cooling water backwater channel is made of the cavity between middle tube and the outer tube; The air flue of anode bodies is made of the cavity in the sleeve pipe, and the interior pipe of this sleeve pipe is the outer tube in cathode cooling water backwater road; The water channel of anode bodies is positioned at the outermost layer of plasma generator, it is made of the cavity in the sleeve pipe equally, and set dividing plate is divided into cavity intake antrum and backwater cavity and makes intake antrum and the front end of backwater cavity and anode bodies cooling water cavity 13 UNICOMs along bus in the cavity of sleeve pipe.
Claims (2)
1, a kind of plasma generator that is used for coal burning boiler of power station igniting and the clean thermal source of stove mainly includes anode bodies (1), anode bodies cooling water channel (3) and anode bodies cooling water cavity (13), anode bodies air flue (15) and cathode (4), cathode cooling water channel (6); It is characterized in that:
1), its anode block of anode bodies (1) of being positioned at the generator front end is back, convergent footpath flaring gauge structure, defeated arc chamber, the center that the interior pipe of the magnetic conduction heat-resisting alloy material of anode bodies (1) sleeve portion constitutes be the jet tube structure that convergence is earlier spread again;
2), described cathode (4) is the heavy wall cylinder of cavity structure, the defeated arc that its center cavity the constitutes jet tube structure that back undergauge section, expansion segment, preceding flat segments constitute of serving as reasons;
3), adopt the parallel gas feed structure, promptly be respectively arranged with the air flue that compressed air or nitrogen are provided for anode bodies, cathode; The venthole of cathode air flue (14) and cathode spirally inlet air ring (5) UNICOM also are arranged on the rear end of cathode (4) with cathode spirally inlet air ring (5), and the spiral fumarole on the cathode spirally inlet air ring (5) is connected with defeated arc chamber, the center of cathode;
4), be provided with in the cathode rear end to connect base (9) and to make and connect base (9) and cathode rear end thread connection, connect base (9) and have or be connected with negative electrode spirally inlet air ring (5); Cathode cooling water channel (6) for by two toroidal cavities connecting front and back two-stage structure that base (9) is connected as a single entity and had by connection base (9) with the two sections cathode cooling water channels in front and back UNICOM; Wherein, the back segment of cathode cooling water channel is made of three layers of pipe, and its leading portion is made of the outer wall of two-layer pipe and cathode.
2, according to the described plasma generator that is used for coal burning boiler of power station igniting and the clean thermal source of stove of claim 1, it is characterized in that: be provided with in order to control the proportional control valve of the defeated arc chamber of anode bodies and cathode pole-face and cathode center admission pressure, flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202207798U CN201302176Y (en) | 2008-11-10 | 2008-11-10 | Plasma generator used for igniting power station coal-burning boiler and cleaning heat source of stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202207798U CN201302176Y (en) | 2008-11-10 | 2008-11-10 | Plasma generator used for igniting power station coal-burning boiler and cleaning heat source of stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201302176Y true CN201302176Y (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202207798U Expired - Fee Related CN201302176Y (en) | 2008-11-10 | 2008-11-10 | Plasma generator used for igniting power station coal-burning boiler and cleaning heat source of stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201302176Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886816A (en) * | 2010-04-14 | 2010-11-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Improved plasma ignition nozzle of coal dust gasifier and mode |
| CN102427654A (en) * | 2011-11-28 | 2012-04-25 | 武汉天和技术股份有限公司 | Multi-cavity plasma generator anode |
| CN102625559A (en) * | 2012-03-30 | 2012-08-01 | 安徽航天环境工程有限公司 | Long-service-life double-igniting plasma burning torch |
| CN107314397A (en) * | 2017-08-08 | 2017-11-03 | 卢驭龙 | Plasma torch device and plasma kitchen range |
| CN116293786A (en) * | 2023-04-17 | 2023-06-23 | 鑫泓淼机械科技(山东)有限公司 | A contact-type high-efficiency electric energy converter |
-
2008
- 2008-11-10 CN CNU2008202207798U patent/CN201302176Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886816A (en) * | 2010-04-14 | 2010-11-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Improved plasma ignition nozzle of coal dust gasifier and mode |
| CN102427654A (en) * | 2011-11-28 | 2012-04-25 | 武汉天和技术股份有限公司 | Multi-cavity plasma generator anode |
| CN102625559A (en) * | 2012-03-30 | 2012-08-01 | 安徽航天环境工程有限公司 | Long-service-life double-igniting plasma burning torch |
| CN102625559B (en) * | 2012-03-30 | 2014-06-04 | 安徽航天环境工程有限公司 | Long-service-life double-igniting plasma burning torch |
| CN107314397A (en) * | 2017-08-08 | 2017-11-03 | 卢驭龙 | Plasma torch device and plasma kitchen range |
| CN116293786A (en) * | 2023-04-17 | 2023-06-23 | 鑫泓淼机械科技(山东)有限公司 | A contact-type high-efficiency electric energy converter |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20101110 |