CN102607057A - Automatic air flow adjusting device for prolonging service life of plasma tube type cathode - Google Patents

Automatic air flow adjusting device for prolonging service life of plasma tube type cathode Download PDF

Info

Publication number
CN102607057A
CN102607057A CN2012101110372A CN201210111037A CN102607057A CN 102607057 A CN102607057 A CN 102607057A CN 2012101110372 A CN2012101110372 A CN 2012101110372A CN 201210111037 A CN201210111037 A CN 201210111037A CN 102607057 A CN102607057 A CN 102607057A
Authority
CN
China
Prior art keywords
negative electrode
compressed gas
compressed air
direct current
tubular type
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.)
Granted
Application number
CN2012101110372A
Other languages
Chinese (zh)
Other versions
CN102607057B (en
Inventor
黄晓曲
曲大伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201210111037.2A priority Critical patent/CN102607057B/en
Publication of CN102607057A publication Critical patent/CN102607057A/en
Application granted granted Critical
Publication of CN102607057B publication Critical patent/CN102607057B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Plasma Technology (AREA)

Abstract

The invention provides an automatic air flow adjusting device for prolonging the service life of a plasma tube type cathode, which belongs to the field of pulverized coal kiln equipment. An annular upper limit and an annular lower limit of a cathode discharging region are arranged on the inner wall face of the tube type cathode, so as to form the tube type cathode discharging region; one end of a direct-current compressed air conveying pipe with a direct-current compressed air adjusting valve is communicated with a direct-current compressed air inlet on a direct-current compressed air insulating sealing sleeve; a direct-current air adjusting valve control cable is used for connecting a computer compressed air pressure-adjusting cabinet with the direct-current compressed air adjusting valve; one end of a cathode compressed air conveying pipe equipped with a cyclone compressed air adjusting valve is communicated with a compressed air flow cyclone device on a sealing cover; and a cyclone air adjusting valve control cable is used for connecting the computer compressed air pressure-adjusting cabinet with the cyclone compressed air adjusting valve. The device disclosed by the invention is simple and reasonable and high in automation degree, and the plasma tube type cathode is long in service life and reliable in use.

Description

A kind of plasma tubular type negative electrode air-flow self-checking device in service life that prolongs
Technical field
The invention belongs to the coal dust furnace equipment, relates generally to the igniting baking kiln device on a kind of coal dust kiln.
Background technology
In the process that plasma-arc moves continuously, the negative electrode scaling loss is the key issue that influences plasma generator service life.Common board-like negative electrode, rod-type negative electrode accumulative total service life are no more than 50 hours; Chinese patent: 200420063609 disclosed a kind of tubular type cathode ion rifles; Compare with board-like negative electrode, rod-type negative electrode, the tubular type negative electrode has the region of discharge, the plasma gun negative electrode service life that have increased negative electrode can surpass 100 hours advantage.Through high-speed motion picture camera discovery is analyzed in the shooting of arc discharge motion track; Under the tubular type cathode arc continuous discharge state; The cathodic discharge district moves with the circular path rotation in the radial position of tubular type negative electrode inwall and carries out; In the axial location respective fixation; The region of discharge of tubular type negative electrode only limits at the circle ring area of tubular type negative electrode inwall axial width at 5-10mm, but bigger region of discharge effectively do not utilized, cause to reach and to surpass 200 hours target the service life of tubular type negative electrode.
Summary of the invention
The purpose of the invention is exactly the problem that exists to above-mentioned prior art; Design provides a kind of plasma tubular type negative electrode air-flow self-checking device in service life that prolongs, and reaches to alleviate tubular type negative electrode inwall region of discharge high temperature scaling loss, prolong tubular type negative electrode service life significantly, reduce use cost, reduce the purpose that maintenance is changed number of times, improved operating efficiency.
The objective of the invention is to realize like this: a kind of plasma tubular type negative electrode air-flow self-checking device in service life that prolongs; Equipped respectively tubular anode and tubular type negative electrode in the opposite end portion of direct current compressed gas insulated enclosure cover; The seal cover that has the compressed air stream cyclone is fitted on the tubular type negative electrode outboard end; The two ends of anode cable are connected with the DC power cabinet anode with the anode discharge district of tubular anode respectively; Equipped cathode cable two ends of opening the arc cabinet are connected with the DC power cabinet negative electrode with the tubular type negative electrode respectively; On tubular type negative electrode internal face, set gradually cathodic discharge district annular lower limit and cathodic discharge district annular upper limit vertically; On the tubular type negative electrode internal face between described cathodic discharge district annular lower limit and the cathodic discharge district annular upper limit, constitute the cathodic discharge zone; An end that has the direct current compressed gas carrier pipe of direct current compressed gas control valve is communicated with the direct current compressed gas air admission hole that direct current compressed gas insulated enclosure puts; Direct current gas control valve control cable is connected computer compressed gas surge tank with direct current compressed gas control valve, negative electrode compressed gas carrier pipe one end of equipped eddy flow compressed gas control valve is communicated with the compressed air stream cyclone on the end cover, and eddy flow gas control valve control cable is connected computer compressed gas surge tank with eddy flow compressed gas control valve.
Can make tubular type cathodic discharge district during the invention operation when radially rotation is moved; Also produce and move at axial location; Form the characteristics that move the discharge track with spiral at tubular type negative electrode inwall; Tubular type cathodic discharge zone is expanded the cylindric of 45mm to by existing 5-10mm circular, has increased the region of discharge of plasma tubular type negative electrode; Tubular type negative electrode inwall in the shape of a spiral the more independent radially rotation of region of discharge scaling loss degree of motion track to move the scaling loss degree light; Not only increased tubular type cathodic discharge region area; Alleviated tubular type negative electrode inwall region of discharge high temperature scaling loss again; The tubular type negative electrode is reached more than 400 hours service life, have simple and reasonable, automaticity is high, use is reliable, fault is few, plasma tubular type negative electrode long service life, characteristics that operating cost is cheap.The invention also can reach the effect that increases the service life to the anode of tubular type cathode plasma rifle, and is applied widely.
Description of drawings
Fig. 1 is a kind of plasma tubular type negative electrode air-flow self-checking device general structure sketch map in service life that prolongs;
Fig. 2 is that A-A among Fig. 1 is to cutaway view;
Fig. 3 is a direct current compressed air pressure period of change sketch map.
Piece number explanation among the figure:
1; Tubular anode; 2; The tubular type negative electrode; 3; Anode cable; 4; Cathode cable; 5; Direct current compressed gas insulated enclosure cover; 6; Direct current compressed gas carrier pipe; 7; Direct current compressed gas control valve; 8; The end cover that has the compressed air stream cyclone; 9; Cathodic discharge district annular lower limit; 10; Cathodic discharge district annular upper limit; 11; The anode discharge district; 12; Open the arc cabinet; 13; Eddy flow compressed gas control valve; 14; Negative electrode compressed gas carrier pipe; 15; Eddy flow gas control valve control cable; 16; Direct current gas control valve control cable; 17; Computer compressed gas surge tank; 18; DC power cabinet; 19; Direct current compressed gas air admission hole.
The specific embodiment
Below in conjunction with accompanying drawing the invention embodiment is described in detail.A kind of plasma tubular type negative electrode air-flow self-checking device in service life that prolongs; Equipped respectively tubular anode 1 and tubular type negative electrode 2 in the opposite end portion of direct current compressed gas insulated enclosure cover 5; The seal cover 8 that has the compressed air stream cyclone is fitted on tubular type negative electrode 2 outboard end; The two ends of anode cable 3 are connected with DC power cabinet 18 anodes with the anode discharge district 11 of tubular anode 1 respectively; Equipped cathode cable 4 two ends of opening arc cabinet 12 are connected with DC power cabinet 18 negative electrodes with tubular type negative electrode 2 respectively; On tubular type negative electrode 2 internal faces, set gradually cathodic discharge district annular lower limit 9 and cathodic discharge district annular upper limit 10 vertically; On tubular type negative electrode 2 internal faces between described cathodic discharge district annular lower limit 9 and the cathodic discharge district annular upper limit 10, constitute the cathodic discharge zone; An end that has the direct current compressed gas carrier pipe 6 of direct current compressed gas control valve 7 is communicated with the direct current compressed gas air admission hole 19 that direct current compressed gas insulated enclosure overlaps on 5; Direct current gas control valve control cable 16 is connected computer compressed gas surge tank 17 with direct current compressed gas control valve 7, negative electrode compressed gas carrier pipe 14 1 ends of equipped eddy flow compressed gas control valve 13 are communicated with the compressed air stream cyclone on the end cover 8, and eddy flow gas control valve control cable 15 is connected computer compressed gas surge tank 17 with eddy flow compressed gas control valve 13.
The operation adjustment process is following: given direct current compressed air stream and eddy flow compressed air stream; Give DC power cabinet 18 power supplies; Form voltage through positive and negative utmost point cable 3,4 at tubular type negative electrode 2 and tubular anode 1; Open arc cabinet 12 and produce instantaneous pressure puncture tubular type negative electrode 2 and tubular anode 1, form continuous plasma electric arc.The direct current compressed air stream of initial stage steady pressure makes tubular type cathodic discharge zone constant in the axial direction fixed position; The effect that is having an end cover 8 of compressed air stream cyclone to the compressed air stream of negative electrode compression carrier pipe 14 supplies produces the tangential down and rotates into tubular type negative electrode 2 inwalls, under the negative electrode compressed air stream effect of rotation, forces the cathodic discharge zone at negative electrode inwall annular lower limit 9 place's rotating electric-dischargings in low-voltage cathodic discharge district radially.Computer compressed gas surge tank 17 sends instruction according to predefined direct current compressed air stream change curve; Direct current compressed gas control valve 7 is sent periodic pressure regulating command; The direct current compressed air stream is changed according to instruction; When the direct current compressed air pressure increased gradually, the effect of straight-flow air forced the cathodic discharge zone to be moved to annular upper limit 10 places, high voltage cathodic discharge district, forms the region of discharge of spiral motion track at tubular type negative electrode 2 inwalls.Otherwise, the cathodic discharge zone by cathodic discharge district annular upper limit 10 places to low-voltage cathodic discharge district annular lower limit 9 in the shape of a spiral track move discharge.According to the direct current compressed air pressure cycle change curve of test data establishment, computer compressed gas surge tank 17 is carried out the periodic pressure adjustment according to 7 pairs of direct current compressed air pressure of the curve controlled direct current compressed gas control valve of setting.The result is: tubular type negative electrode inwall region of discharge not only in radially rotation, also moves axially at tubular type negative electrode 2 inwalls, forms the discharge of spiral motion track; Increased the region of discharge of tubular type negative electrode 2; Improve the effective rate of utilization of existing tubular type negative electrode, reduced negative electrode scaling loss degree, increased the service life of tubular type negative electrode; Through experimental verification, can make surpass more than 400 hours the service life of tubular type negative electrode.

Claims (1)

1. one kind prolongs the plasma tubular type negative electrode air-flow self-checking device in service life; Equipped respectively tubular anode (1) and tubular type negative electrode (2) in the opposite end portion of direct current compressed gas insulated enclosure cover (5); The seal cover (8) that has the compressed air stream cyclone is fitted on tubular type negative electrode (2) outboard end; The two ends of anode cable (3) are connected with DC power cabinet (18) anode with the anode discharge district (11) of tubular anode (1) respectively; Equipped cathode cable (4) two ends of opening arc cabinet (12) are connected with DC power cabinet (18) negative electrode with tubular type negative electrode (2) respectively; It is characterized in that on tubular type negative electrode (2) internal face, setting gradually vertically cathodic discharge district annular lower limit (9) and cathodic discharge district annular upper limit (10); On tubular type negative electrode (2) internal face between described cathodic discharge district annular lower limit (9) and the cathodic discharge district annular upper limit (10), constitute the cathodic discharge zone; An end that has the direct current compressed gas carrier pipe (6) of direct current compressed gas control valve (7) is communicated with direct current compressed gas air admission hole (19) on the direct current compressed gas insulated enclosure cover (5); Direct current gas control valve control cable (16) is connected computer compressed gas surge tank (17) with direct current compressed gas control valve (7); Negative electrode compressed gas carrier pipe (14) one ends of equipped eddy flow compressed gas control valve (13) are communicated with the compressed air stream cyclone on the end cover (8), and eddy flow gas control valve control cable (15) is connected computer compressed gas surge tank (17) with eddy flow compressed gas control valve (13).
CN201210111037.2A 2012-04-17 2012-04-17 Automatic air flow adjusting device for prolonging service life of plasma tube type cathode Expired - Fee Related CN102607057B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210111037.2A CN102607057B (en) 2012-04-17 2012-04-17 Automatic air flow adjusting device for prolonging service life of plasma tube type cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210111037.2A CN102607057B (en) 2012-04-17 2012-04-17 Automatic air flow adjusting device for prolonging service life of plasma tube type cathode

Publications (2)

Publication Number Publication Date
CN102607057A true CN102607057A (en) 2012-07-25
CN102607057B CN102607057B (en) 2014-04-16

Family

ID=46524683

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210111037.2A Expired - Fee Related CN102607057B (en) 2012-04-17 2012-04-17 Automatic air flow adjusting device for prolonging service life of plasma tube type cathode

Country Status (1)

Country Link
CN (1) CN102607057B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103813561A (en) * 2013-04-16 2014-05-21 杜志刚 Plasma radon gas high pressure gas heating device method
CN103813559A (en) * 2013-04-16 2014-05-21 杜志刚 Plasma radon gas high-pressure gas heating device
CN105116765A (en) * 2015-06-30 2015-12-02 国网山东省电力公司电力科学研究院 Plasma automatic arc starting control system and method with multiple control functions

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050196718A1 (en) * 2004-03-03 2005-09-08 Inigo Albizuri Gas distribution assembly with rotary taps for a cooking appliance
DE102009001945A1 (en) * 2008-03-28 2009-10-01 DENSO CORPORATION, Kariya-shi detonator
CN101551118A (en) * 2009-04-23 2009-10-07 徐州燃控科技股份有限公司 Plasma ignition device with long service life
CN102364994A (en) * 2011-09-28 2012-02-29 南京创能电力科技开发有限公司 Cathodic arc controller for low-temperature plasma generator
CN202511326U (en) * 2012-04-17 2012-10-31 黄晓曲 Automatic airflow adjusting device capable of extending service life of plasma tube cathode

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050196718A1 (en) * 2004-03-03 2005-09-08 Inigo Albizuri Gas distribution assembly with rotary taps for a cooking appliance
DE102009001945A1 (en) * 2008-03-28 2009-10-01 DENSO CORPORATION, Kariya-shi detonator
CN101551118A (en) * 2009-04-23 2009-10-07 徐州燃控科技股份有限公司 Plasma ignition device with long service life
CN102364994A (en) * 2011-09-28 2012-02-29 南京创能电力科技开发有限公司 Cathodic arc controller for low-temperature plasma generator
CN202511326U (en) * 2012-04-17 2012-10-31 黄晓曲 Automatic airflow adjusting device capable of extending service life of plasma tube cathode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103813561A (en) * 2013-04-16 2014-05-21 杜志刚 Plasma radon gas high pressure gas heating device method
CN103813559A (en) * 2013-04-16 2014-05-21 杜志刚 Plasma radon gas high-pressure gas heating device
CN105116765A (en) * 2015-06-30 2015-12-02 国网山东省电力公司电力科学研究院 Plasma automatic arc starting control system and method with multiple control functions
CN105116765B (en) * 2015-06-30 2017-11-14 国网山东省电力公司电力科学研究院 Plasma with various control function opens arc control system and method automatically

Also Published As

Publication number Publication date
CN102607057B (en) 2014-04-16

Similar Documents

Publication Publication Date Title
CN203875469U (en) Low-frequency plasma cutting gun
CN103269558A (en) Anode of supersonic plasma torch, and supersonic plasma torch
CN102607057B (en) Automatic air flow adjusting device for prolonging service life of plasma tube type cathode
CN105282952A (en) 500 KW magnetic stability non-transferred arc plasma generator
CN203378130U (en) Anode of supersonic speed plasma spray gun and supersonic speed plasma spray gun
WO2008131606A1 (en) Combined double-cathodes of plasma generator
CN100441953C (en) Micro-oil plasma composite ignition and combustion-stabilization method and device therefor
CN203645904U (en) Rotary torch head device of plasma torch
CN104853514A (en) Laminar plasma generator
CN107949140A (en) A kind of spring arc striking type plasma burner
CN204362409U (en) A kind of two inlet plenum plasma gun
CN106714437A (en) Input-power-adjustable dual-anode arc heating plasma torch
KR101930486B1 (en) Plasma Torch for Treating Waste Air
CN109600899A (en) A kind of oxygen flame compound plasma torch
CN209017350U (en) A kind of plasma generator
CN202511326U (en) Automatic airflow adjusting device capable of extending service life of plasma tube cathode
CN105430863A (en) Plasma generator based on glide arc discharge principle
CN110881239B (en) Multi-arc plasma reactor introducing external magnetic field and operation method
CN104602432A (en) Self-cooled anode plasma source
CN204795821U (en) Laminar flow plasma generator
CN204460201U (en) A kind of high-power adjustable pulverized-coal fired boiler plasma ignition device
CN110519903A (en) Air tubular plasma generator interstitial structure
CN104728864A (en) High-power adjustable plasma ignition test bed system for pulverized coal boiler
EP2418921B1 (en) Single-gas plasma cutting torch
CN207720495U (en) A kind of spring arc striking type plasma burner

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
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: 20140416

Termination date: 20160417