CN2326862Y - Firing gun for plasma ignition device - Google Patents
Firing gun for plasma ignition device Download PDFInfo
- Publication number
- CN2326862Y CN2326862Y CN 98202922 CN98202922U CN2326862Y CN 2326862 Y CN2326862 Y CN 2326862Y CN 98202922 CN98202922 CN 98202922 CN 98202922 U CN98202922 U CN 98202922U CN 2326862 Y CN2326862 Y CN 2326862Y
- Authority
- CN
- China
- Prior art keywords
- electrode
- ignition device
- plasma ignition
- contact tube
- mounting seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010304 firing Methods 0.000 title abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 239000011810 insulating material Substances 0.000 claims abstract description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052735 hafnium Inorganic materials 0.000 claims description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 4
- GALOTNBSUVEISR-UHFFFAOYSA-N molybdenum;silicon Chemical compound [Mo]#[Si] GALOTNBSUVEISR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 8
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000295 fuel oil Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229920001342 Bakelite® Polymers 0.000 description 2
- 239000004637 bakelite Substances 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010242 baoji Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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- Plasma Technology (AREA)
Abstract
The utility model discloses a firing gun for a plasma ignition device. The utility model is characterized in that a wind inlet pipe on the casing of the utility model is communicated with an air inlet on a contact tube and the cooling through hole of an end, and an electrode is connected with a conduction mounting seat. The contact tube, a conduction shim and a bare head conducting wire which are connected in sequence are arranged in the casing, and insulating material is filled among the contact tube, the conduction shim and the bare head conducting wire. The front end of the contact tube is connected with the conduction mounting seat, the tail end of the casing is connected with an anti-loosing joint, and the bare head conducting wire passes through the anti-loosing joint and is connected with a power source. The utility model has the advantages that electrons of large capacity can be reliably emitted in the high-temperature and high-pressure environment for a long time, lean coal can be ignited directly, and the stable combustion of a pulverized coal boiler can be aided.
Description
The utility model discloses a kind of ejecting gun that is used on the plasma ignition device, it is suitable for being used in the big capacity electronics of emission under the high temperature and high pressure environment, is particularly suitable for being used on the plasma ignition device of directly lighting generating plant pulverized coal boiler.
At present; what the home and abroad station boiler adopted all is fuel ignitions; annual station boiler igniting will be burnt a large amount of fuel oils; with China's station boiler is example; annual only ignition of the boiler just needs about 150～1,800,000 tons fuel oil; amount to about 45～5,400,000,000 yuan RMB; station boiler required fuel oil in the whole world will be an immeasurable numeral; in the face of global energy crisis; particularly, press for igniting, the combustion-supporting and oily problem of low-load combustion-stabilizing that a kind of unconventional igniter of invention solves pulverized-coal fired boiler in the face of the so oil-poor big country of China.
Late nineteen seventies, the Tsing-Hua University of the U.S., the former Soviet Union, Australia and China begins one's study and adopts the problem of the direct firing coal-dust of plasma technology, the eighties, continuous mutually having finished of the U.S., Canada, the former Soviet Union adopted the laboratory and the type approval test of the direct firing coal-dust of plasma technology, but all do not develop the ejecting gun that an anti-high voltage of complete high temperature resistance also can be launched big capacity electronics.Wherein, the former Soviet Union is used for the emitter on the plasma ignition device, is made up of cable, negative electrode graphite electrode, electrode feed arrangement, cooler.At the bottom of nineteen ninety-five, it directly lights Tongchuan meager coal in China Baoji power plant, three hours 08 minutes have only normally been moved, just find that it can not work reliably under high temperature and high pressure environment, there is coring in graphite electrode, falls slag in combustion process, cause voltage, electric current unstable even short circuit occurs, the insulating barrier (cooler) that adopts bakelite to make is at high temperature for several times breakdown, the electrode feeding mode of charged transmission problem such as be absolutely unsafe.
Fail to develop a kind of plasma ejecting gun that can also can directly light colm at the medium-term and long-term steady operation of high temperature and high pressure environment, influenced plasma ignition device promoting the use on station boiler.
The purpose of this utility model provides a kind of ejecting gun that is used on the plasma ignition device, and it is the big capacity electronics of emission in high temperature and high pressure environment stably in a long term, directly lights meager coal, and can assist pulverized-coal fired boiler smooth combustion.
The purpose of this utility model is achieved in that a kind of ejecting gun that is used on the plasma ignition device, it has electrode, the conductive mounting seat, contact tube, conductive spacer, insulating materials, housing, naked lead, anti-loose joint, blast pipe is housed on the housing, have air admission hole on the contact tube, have the cooling through hole on the conductive mounting seat or in the electrode, blast pipe and air admission hole, the cooling through hole communicates, electrode connects the conductive mounting seat, contact tube, conductive spacer, naked lead connects in proper order and is installed in the housing, between fill insulant, termination conductive mounting seat before the contact tube, shell end is taken over control loose joint, and naked lead passes anti-loose joint and connects power supply; Can also be all to have the cooling through hole in conductive mounting seat and the electrode;
Wherein, contact tube is a copper tube, to be filled in insulating materials between contact tube and the housing be one group of high alumina insulating ceramics pipe or the sintering high alumina insulating ceramics pipe of high-temperature glaze;
Wherein, the electrode material is hafnium or zirconium or silicon molybdenum, and electrode is fixed on and constitutes combined electrode in the conductive sleeve, and electrode is the dismantled and assembled electrode that is fixed on the conductive mounting seat;
Wherein, the insulating materials that is packed between conductive spacer, naked lead and the housing is the high-temperature resistant rubber insulating bushing;
Wherein, anti-loose joint is made up of exterior nut cap, joint, backing plate, spring, spring places between joint and the backing plate, locking spring clip is being fixed in the exterior nut cap termination, joint one end passes the exterior nut cap other end and withstands on the backing plate that pushes high alumina insulating ceramics pipe, and shell end has screw thread, and there is a circle tooth form groove screw thread lower end and locking spring clip corresponding position, naked lead passes joint, backing plate, high alumina insulating ceramics pipe, connects back contact.
The utility model has the advantages that:
Because ejecting gun insulating materials described in the utility model adopts high alumina ceramic, and sintering high-temperature glaze, make that the overall emission rifle at high temperature can be not breakdown; Solved the former Soviet Union and adopted the bakelite insulation, at high temperature for several times breakdown problem;
Because the utility model electrode used therein has adopted the little sacrificial electrode with cellular cooling through hole, material selection zirconium or hafnium or silicon molybdenum, make the air that is used for carrier pass the cooling through hole in the electrode, and/or pass cooling through hole on the conductive mounting seat, after electrode cooled off, be dissociated into plasma by big electric current; Having solved graphite electrode itself, oxidation to occur soft, coring in combustion process, falls slag, causes voltage, electric current is unstable even problem of short-circuit occurs;
The electrode easy accessibility is easy to change;
The ejecting gun conductive path adopts contact tube, conductive sleeve that 200～600 Ampere currents are delivered to electrode ignition end from fairing, and when forming high temperature (4000～5000 ℃) electric arc with extraneous anode, cold wind by blast pipe cools off whole conductive path also through air admission hole, tube core, cooling through hole; Solve the former Soviet Union and adopted air-cooled electrode outer surface, the problem of accelerating electrode oxidation at high temperature;
Owing to adopted sealed high pressure prevent loose joint, it is little to have a contact resistance, and anti-high voltage capability is strong, the locking spring clip of fixing on the exterior nut cap, and after being rotated in place, clamp falls in the tooth form groove just, has played fabulous locking effect; Solved the general nipple of former soviet design, the out of use problem of repeatedly becoming flexible in the course of the work, leak, leak gas.
Because the utility model has been developed a complete plasma ejecting gun, can promote the utilization of plasma ignition device quickly, to replace traditional fuel ignition, thereby can save great amount of fuel oil every year, has huge energy-saving and cost-reducing effect, can be country and bring distinct economic and social benefit, the energy policy that meets planning commission of People's Republic of China (PRC) chapter 8 " replace oil with coal " in " 97 white paper ", and ejecting gun is simple in structure, design is unique, cheap, be particularly suitable for China's actual conditions and use.
Fig. 1 is a plasma ejecting gun structural representation described in the utility model;
In conjunction with the accompanying drawings the utility model is further described below by embodiment:
Embodiment 1:
As shown in Figure 1, a kind of ejecting gun that is used on the plasma ignition device, it has electrode 1, conductive sleeve 2, conductive mounting seat 3, fixed sleeve 4, contact tube 5, contact point, lead 14, anti-loose joint 15, ceramic insulating tube 8, pad 6, insulating bushing 11, housing 7, blast pipe 10;
Electrode 1 is fixed in the conductive sleeve 2 and makes combined electrode, (conductive sleeve 2 adopts high conductive material, as: copper pipe) electrode 1 is selected materials such as refractory metal hafnium, zirconium, silicon molybdenum for use, garden cylindrical electrode 1 internal condition air mass flow size, be drilled with several cooling through holes 20, also have cooling through hole 20 on the conductive mounting seat 3, (or on conductive mounting seat 3, have the cooling through hole, be not drilled with cellular cooling through hole in the electrode; Or be drilled with cellular through hole in the electrode, and do not open the cooling through hole on the conductive mounting seat 3) guarantee that electrode 1 in the course of the work can be sufficiently cooled;
Combined electrode is fixed on the conductive mounting seat 3 by screw (or other dismantled and assembled fixing modes), conductive mounting seat 3 is screw or thread connection with solid numerous cover 4, contact tube 5 places in the housing 7, one end is welded on the fixed sleeve 4, before another termination contact point 9 through conductive spacer 18 with after contact point 16 UNICOMs, naked lead 14 is welded on the contact point 16 of back, is locked by anti-loose joint 15;
Clog high-temperature insulation material between electric conductor that contact tube 5, conductive spacer 18, naked lead 14 form after connecting well in order and the housing 7, high-temperature insulation material is a sintering, and the annular high alumina ceramic insulation tube 8 of high-temperature glaze (guarantees that this rifle is as under 800 ℃ of high temperature, anti-electricity is not less than 3000 volts), one group of ceramic insulating tube 8 is nested each other, but gap location shimming 6 is fixing, guarantee that housing 7 is not charged, the insulant that is filled between conductive spacer 18, naked lead 14 and the housing 7 also can be an electro-insulating rubber lining 11;
To prevent that loose joint 15 is installed to housing 7 ends, when screwing exterior nut cap 12, joint 13 presses closer backing plate 21, and then extruding high alumina ceramic insulation tube 8, the front and back contact point is compressed and closely contacts, whole conductive path is connected with contact tube 5, screw put in place after, the locking spring clip 17 of housing 7 ends fixes in the tooth form groove of housing 7 ends just, can not become flexible.
Working method of the present utility model and principle are:
The big electric current that lead on the ejecting gun described in the utility model comes fairing (as: 200～600 peace), through preceding contact point 9, conductive spacer 18, after conductive sleeve 2 on the contact point 16, contact tube 5, conductive mounting seat 3, electrode 1 deliver to electrode and get angry end, and between electrode and jet pipe (anode) high voltage in addition, form electric arc, air is become plasma, thereby finish ignition operation.The high alumina ceramic pipe that has transmitted between the negative electrode contact tube of electric current and the anode casing with sintering high-temperature glaze insulate, in galvanization, be used for entering extraneous anode nozzle after by blast pipe 10, air admission hole 19, contact tube 5, cooling 20 pairs of contact tubes of through hole and electrode cooling and become plasma as the cold air of plasma carrier.
Claims (8)
1. ejecting gun that is used on the plasma ignition device, it is characterized in that: it has electrode (1), conductive mounting seat (3), contact tube (5), conductive spacer (18), insulating materials (8), housing (7), naked lead (14), anti-loose joint (15), blast pipe (10) is housed on the housing (7), have air admission hole (19) on the contact tube (5), have cooling through hole (20) on the conductive mounting seat (3) or in the electrode (1), blast pipe (10) and air admission hole (19), cooling through hole (20) communicates, electrode (1) connects conductive mounting seat (3), contact tube (5), conductive spacer (18), naked lead (14) order connects and is installed in the housing (7), between fill insulant (8), contact tube (5) preceding termination conductive mounting seat (3), housing (7) end is taken over control loose joint (15), and naked lead (14) passes anti-loose joint (15) and connect power supply.
2. a kind of ejecting gun that is used on the plasma ignition device as claimed in claim 1 is characterized in that: all have cooling through hole (20) on the conductive mounting seat (3) and in the electrode (1).
3. a kind of ejecting gun that is used on the plasma ignition device as claimed in claim 1 or 2 is characterized in that: to be filled in insulating materials (8) between contact tube (5) and the housing (7) be one group of high alumina insulating ceramics pipe or the sintering high alumina insulating ceramics pipe of high-temperature glaze.
4. a kind of ejecting gun that is used on the plasma ignition device as claimed in claim 3 is characterized in that: contact tube (5) is a copper tube.
5. a kind of ejecting gun that is used on the plasma ignition device as claimed in claim 4 is characterized in that: electrode (1) is hafnium or zirconium or silicon molybdenum, and electrode (1) is fixed in the conductive sleeve (2).
6. a kind of ejecting gun that is used on the plasma ignition device as claimed in claim 5 is characterized in that: electrode (1) is the dismantled and assembled electrode that is fixed on the conductive mounting seat (3).
7. a kind of ejecting gun that is used on the plasma ignition device as claimed in claim 6 is characterized in that: the insulating materials (8) that is packed between conductive spacer (18), naked lead (14) and the housing (7) is high-temperature resistant rubber insulating bushing (11).
8. a kind of ejecting gun that is used on the plasma ignition device as claimed in claim 7, it is characterized in that: anti-loose joint (15) is by exterior nut cap (12), joint (13), backing plate (21), spring (22) is formed, spring (22) places between joint (13) and the backing plate (21), locking spring clip (17) is being fixed in exterior nut cap (12) termination, joint (13) passes exterior nut cap (12) and withstands on the backing plate (21) that pushes high alumina insulating ceramics pipe, housing (7) end has screw thread, there is a circle tooth form groove screw thread lower end and locking spring clip (17) corresponding position, naked lead (14) passes joint (13), backing plate (21), high alumina insulating ceramics pipe (8) connects back contact (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202922 CN2326862Y (en) | 1998-03-31 | 1998-03-31 | Firing gun for plasma ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202922 CN2326862Y (en) | 1998-03-31 | 1998-03-31 | Firing gun for plasma ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2326862Y true CN2326862Y (en) | 1999-06-30 |
Family
ID=33959876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98202922 Expired - Lifetime CN2326862Y (en) | 1998-03-31 | 1998-03-31 | Firing gun for plasma ignition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2326862Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705082A (en) * | 2012-05-29 | 2012-10-03 | 哈尔滨工程大学 | Windward pressure differential plasma ignition nozzle |
| CN102720589A (en) * | 2012-07-10 | 2012-10-10 | 烟台龙源电力技术股份有限公司 | Plasma body igniter and gas turbine |
| CN109539305A (en) * | 2019-01-15 | 2019-03-29 | 佛山市科皓燃烧设备制造有限公司 | A kind of novel self-cooling applied to industrial burner but electrode |
-
1998
- 1998-03-31 CN CN 98202922 patent/CN2326862Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705082A (en) * | 2012-05-29 | 2012-10-03 | 哈尔滨工程大学 | Windward pressure differential plasma ignition nozzle |
| CN102720589A (en) * | 2012-07-10 | 2012-10-10 | 烟台龙源电力技术股份有限公司 | Plasma body igniter and gas turbine |
| CN109539305A (en) * | 2019-01-15 | 2019-03-29 | 佛山市科皓燃烧设备制造有限公司 | A kind of novel self-cooling applied to industrial burner but electrode |
| CN109539305B (en) * | 2019-01-15 | 2023-10-10 | 佛山市科皓燃烧设备制造有限公司 | Novel self-cooling electrode applied to industrial burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LONGYUAN ELECTRIC TECHNOLOGY CO., LTD., YANTAI Free format text: FORMER NAME OR ADDRESS: LONGYUAN ELECTRIC POWER BURNING + CONTROLLING ENGINEERING CO., LTD., YANTAIDEVE |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Yantai Longyuan Electric Power Technology Co., Ltd. Patentee before: Longyuan Electric Power Combustion Control Engineering Co., Ltd., Yantai Develop |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |