CN109268191A - A kind of double discharge plasma igniters with double air inlet bias anode constructions - Google Patents
A kind of double discharge plasma igniters with double air inlet bias anode constructions Download PDFInfo
- Publication number
- CN109268191A CN109268191A CN201811258766.4A CN201811258766A CN109268191A CN 109268191 A CN109268191 A CN 109268191A CN 201811258766 A CN201811258766 A CN 201811258766A CN 109268191 A CN109268191 A CN 109268191A
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- anode
- groove
- air inlet
- double
- grounding electrode
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P23/00—Other ignition
- F02P23/04—Other physical ignition means, e.g. using laser rays
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/48—Generating plasma using an arc
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spark Plugs (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of double discharge plasma igniters with double air inlet bias anode constructions, belong to combustion of natural gas apparatus field, including grounding electrode, anodized insulation positioning sleeve is equipped in the grounding electrode, groove a and groove b are provided on the anodized insulation positioning sleeve, its further groove a bottom end closure, the bottom end groove b is open, and the bottom end of groove a is lower than the bottom end of groove b；Short anode is equipped in the groove a, inserted with long anode in groove b；The grounding electrode is equipped with the card slot matched with anodized insulation positioning sleeve, and is clamped with anodized insulation positioning sleeve；The side of the grounding electrode is respectively equipped with air inlet a and air inlet b；The configuration of the present invention is simple realizes the efficient igniting and burning of natural gas, so that natural gas engine is stablized under single-fuel mode, reliable ignition.
Description
Technical field
The present invention relates to natural gas fired apparatus fields, and in particular to a kind of double with double air inlet bias anode constructions are put
Electro-plasma igniter.
Background technique
Traditional engine on spark plug configuration generally by a central electrode and be closer with it one or number
A lateral electrode composition.When work, ignition coil is the power supply of center electrode, and voltage is up to ten thousand volts of 1.5-2.In contre electrode and side electricity
Under the High Pressure Difference of interpolar, gas is breakdown, and high temperature discharge channel is formed in the small space between central electrode and lateral electrode,
Igniting and burning start.However ignition energy utilization rate is easily led to often with very high temperature rise when the work of existing spark plug
It is low and influence electrode life, and existing plug ignition range is only located at the small space between central electrode and lateral electrode, answers
When for large bore engine or being not easy the fuel lighted such as natural gas, igniting reliability is easily led to since ignition energy is too small and is become
Difference.
Summary of the invention
To solve defect existing in the prior art, the present invention provides a kind of double with double air inlet bias anode constructions and puts
Electro-plasma igniter, structure is simple, realizes the efficient igniting and burning of natural gas, enables natural gas engine in list
Stablize under one fuel mode, reliable ignition.
The present invention is that technical solution used by solving its technical problem is: a kind of with double air inlet bias anode constructions
Double discharge plasma igniters, including grounding electrode, the grounding electrode is interior to be equipped with anodized insulation positioning sleeve, and the anode is exhausted
Groove a and groove b are provided on edge positioning sleeve, further groove a bottom end closure, the bottom end groove b is open, and the bottom end of groove a is lower than
The bottom end of groove b；Short anode is equipped in the groove a, inserted with long anode in groove b；The grounding electrode is equipped with and sun
The card slot that pole insulating positioning sleeve matches, and be clamped with anodized insulation positioning sleeve；The side of the grounding electrode be respectively equipped with into
Port a and air inlet b.
Further, ionization space a is equipped between the grounding electrode and the outside groove a of anodized insulation positioning sleeve；Institute
It states between on the outside of the groove b of grounding electrode and anodized insulation positioning sleeve and is equipped with ionization space b；Under the grounding electrode and long anode
Ionization space c is equipped between end.
Further, the air inlet a is horizontally disposed, and communicates with ionization space a；The air inlet b is obliquely installed.
Further, anode positioning bolt a and anode positioning spiral shell have been respectively fixedly connected on the short anode and long anode
Bolt b.
Further, the length of the long anode is greater than the length of the groove b of anodized insulation positioning sleeve.
Further, the top of the short anode and long anode is in same level.
Further, the locating flange for fixed point firearm ontology is connected on the grounding electrode.
The beneficial effects of the present invention are: the fuel and air for igniting are passed through by air inlet, main chamber is not needed
Interior gaseous mixture is flow backwards, can be according to ignition conditions using air of the control through air inlet a and the fuel flow rate through air inlet b
The equivalent proportion of method control gaseous mixture in ionization space a, ionization space b, ionization space c, and then changed according to actual condition
Kind ionization and ignition results；The present invention can be realized high energy, stable ignition within the scope of wide fuel air ratio, and air inlet b sprays
The air or fuel entered plays cooling effect to long anode, is able to extend electrode life；Electrode simple installation, structure letter
It is single.
Detailed description of the invention
Fig. 1 is overall structure cross-sectional view of the invention.
Appended drawing reference is as follows in figure: 1, anodized insulation positioning sleeve, 2, short anode, 3, long anode, 4, grounding electrode, 5, air inlet
Mouthful a, 6, air inlet b, 7, ionization space a, 8, ionization space b, 9, ionization space c, 10, anode positioning bolt a, 11, anode it is fixed
Position bolt b, 12, locating flange.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
Embodiment 1
A kind of double discharge plasma igniters with double air inlet bias anode constructions, including grounding electrode 4, it is described to connect
It is equipped with anodized insulation positioning sleeve 1 in ground electrode 4, is provided with groove a and groove b, further groove a on the anodized insulation positioning sleeve 1
Bottom end closure, the bottom end groove b is open, and the bottom end of groove a is lower than the bottom end of groove b；Short anode 2 is equipped in the groove a, it is recessed
Inserted with long anode 3 in slot b；The grounding electrode 4 is equipped with the card slot matched with anodized insulation positioning sleeve 1, and and anode
Insulating positioning sleeve 1 is clamped；The side of the grounding electrode 4 is respectively equipped with air inlet a5 and air inlet b6.
Ionization space a7 is equipped between on the outside of the groove a of the grounding electrode 4 and anodized insulation positioning sleeve 1；The ground connection
Ionization space b8 is equipped between on the outside of the groove b of electrode 4 and anodized insulation positioning sleeve 1；Under the grounding electrode 4 and long anode 3
Ionization space c9 is equipped between end.
The air inlet a5 is horizontally disposed, and communicates with ionization space a7；The air inlet b6 is obliquely installed.
Anode positioning bolt a10 and anode positioning bolt b11 have been respectively fixedly connected on the short anode 2 and long anode 3.
The length of the long anode 3 is greater than the length of the groove b of anodized insulation positioning sleeve 1.
The top of the short anode 2 and long anode 3 is in same level.
The locating flange 12 for fixed point firearm ontology is connected on the grounding electrode 4.
The course of work of the invention is as follows: when work, being passed through a certain amount of air (or fuel), short anode by air inlet a5
2 are individually powered with long anode 3 by power supply, at this point, power supply is respectively first short anode 2 with 10,000 volts of lower voltages below
It powers with long anode 3, at the lower voltage, short anode 2- anodized insulation positioning sleeve 1- grounding electrode 4, long anode 3- anodized insulation
Dielectric barrier discharge occurs between positioning sleeve 1- grounding electrode 4, dielectric barrier discharge betides ionization space a7 and electricity respectively
From in the b8 of space.It ionizes, generates freely under DC Electric Field positioned at the gas of ionization space a7 and ionization space b8
Electronics and nonequilibrium plasma with positive charge cation composition, chemical reactivity improve；Since voltage is lower at this time,
Arc discharge does not occur in ionization space c9.
Due to being continually fed into for air (or fuel), the nonequilibrium plasma for ionizing generation continues to move downward, and enters
Into ionization space c9, at this point, air inlet a5 stopping is passed through air (or fuel), power cut-off；With that is, air inlet b6 is passed through combustion
Expect (or air), under the high energy electron effect in generated nonequilibrium plasma, becomes in the fuel molecule of electroneutral
Positively charged heavy ion and electronegative free electron, to be changed into nonequilibrium plasma, reactivity is improved；At this point,
Power supply is the power supply of long anode 3 with ten thousand volts of 1.5-2 of higher voltage, is being sent out between grounding electrode 4 and long anode 3 under action of high voltage
Raw arc discharge, the gaseous mixture in ionization space c9 are ionized；Since the reactivity of gaseous mixture at this time has improved, because
This igniting and combustion reaction occur rapidly, and flame will be gone out in the form of large volume flame torch from spout, into engine combustion
Room ignites and is located at the indoor flammable air and fuel mixture that burns.
Embodiment 2
This gives a kind of control strategies for applying the present invention to piston-mode motor.
The crankshaft position sensor of piston-mode motor judges crank position, if current crank angle does not arrive setting value,
Continue to judge；If having arrived setting value, power supply output low pressure discharge is instructed by ECU.
After power supply is connected to electric discharge instruction, a certain lower voltage U1 is exported to short anode 2 and long anode 3, is denoted as the time at this time
t1；At this point, short anode 2,3 top of long anode and grounding electrode 4 discharge, medium is formed in ionization space a7 and ionization space b8
Barrier discharge, the gas in ionization space a7 and ionization space b8 are ionized to nonequilibrium plasma；With that is, being ionized
Gas moves downward, and enters ionization space c9 through the Δ t time.
In t1+ time Δt, low pressure discharge instruction is terminated, and short anode 2, long anode 3 power off, at this point, ECU exports power supply
Electrion instruction, power supply export a certain high voltage U2 (U2 > U1) to long anode 3, at this point, 3 lower part of long anode and ground connection electricity
Pole 4 is discharged, and forms arc discharge in ionization space c9, has the non-equilibrium etc. of very high reaction activity in ionization space c9
Gas ions are ignited, and combustion reaction starts, and flame goes out spout in the form of flame torch, enter main chamber.
ECU reads cylinder pressure sensor signal, if cylinder pressure p is greater than a certain setting value p1, then it is assumed that light a fire successfully, ECU continues
CRANK SENSOR is read, subsequent cycle igniting is carried out；If cylinder presses p to be less than p1, then it is assumed that loss of ignition, at this time ECU
It to power source output command, is discharged with U2+ Δ U long anode 3, while increasing the fuel flow rate that enters through air inlet, and after resuming studies
Cylinder is taken to press signal, until lighting a fire successfully；If still judging to light a fire when discharge voltage increases to always setting value U3 (U3 > U2)
Failure or fuel flow rate still judge loss of ignition when increasing to a certain setting value, to guarantee that ignitor terminates safely electric discharge, this
Circulation is no longer lighted a fire.
Embodiment 3
This gives a kind of control strategies for applying the present invention to other engines and burner.
ECU issues low pressure discharge instruction to power supply, after power supply is connected to electric discharge instruction, exports certain to short anode 2 and long anode 3
One lower voltage U1, is denoted as time t1 at this time；At this point, short anode 2,3 top of long anode and grounding electrode 4 discharge, it is empty in ionization
Between dielectric barrier discharge is formed in a7 and ionization space b8, the gas in ionization space a7 and ionization space b8 is ionized to
Nonequilibrium plasma；It is moved downward with that is, being ionized gas, enters ionization space c9 through the Δ t time.
In t1+ time Δt, low pressure discharge instruction is terminated, and short anode 2 powers off, at this point, ECU exports electrion to power supply
Instruction, power supply export a certain high voltage U2 (U2 > U1) to long anode 3, at this point, 3 lower part of long anode and grounding electrode 4 discharge,
Arc discharge is formed in ionization space c9, there is the nonequilibrium plasma quilt of very high reaction activity in ionization space c9
It lights, combustion reaction starts, and flame goes out spout in the form of flame torch, into main chamber.
ECU reads temperature sensor signal, obtains burning room temperature T.If temperature T is greater than a certain setting value T1, then recognize
To light a fire successfully, electrion instruction immediately is terminated, and long anode 3 powers off, and ignition process terminates；If temperature T is less than T1, then it is assumed that
Loss of ignition, ECU discharges long anode 3 to power source output command with U2+ Δ U at this time, while increasing the combustion entered through air inlet
Stream amount, and continue to read temperature signal, until lighting a fire successfully；If when discharge voltage increase to always setting value U3 (U3 >
Loss of ignition is still judged when U2) or when fuel flow rate increases to a certain setting value, to guarantee that ignitor terminates safely electric discharge,
And export failure alarm signal.
The preferable specific embodiment of the above, only the invention, but the protection scope of the invention is not
It is confined to this, anyone skilled in the art is in the technical scope that the invention discloses, according to the present invention
The technical solution of creation and its inventive concept are subject to equivalent substitution or change, should all cover the invention protection scope it
It is interior.
Claims (7)
1. a kind of double discharge plasma igniters with double air inlet bias anode constructions, which is characterized in that including ground connection electricity
Pole (4), the grounding electrode (4) is interior to be equipped with anodized insulation positioning sleeve (1), is provided with groove a on the anodized insulation positioning sleeve (1)
With groove b, further groove a bottom end closure, the bottom end groove b is open, and the bottom end of groove a is lower than the bottom end of groove b；The groove
Short anode (2) are equipped in a, inserted with long anode (3) in groove b；The grounding electrode (4) is equipped with and anodized insulation positioning sleeve
(1) card slot matched, and be clamped with anodized insulation positioning sleeve (1)；The side of the grounding electrode (4) is respectively equipped with air inlet
A (5) and air inlet b (6).
2. a kind of double discharge plasma igniters with double air inlet bias anode constructions according to claim 1,
It is characterized in that, is equipped with ionization space a (7) between the outside groove a of the grounding electrode (4) and anodized insulation positioning sleeve (1)；Institute
It states between on the outside of the groove b of grounding electrode (4) and anodized insulation positioning sleeve (1) and is equipped with ionization space b (8)；The grounding electrode
(4) ionization space c (9) are equipped between long anode (3) lower end.
3. a kind of double discharge plasma igniters with double air inlet bias anode constructions according to claim 1,
It is characterized in that, the air inlet a (5) is horizontally disposed, and communicates with ionization space a (7)；The air inlet b (6) is obliquely installed.
4. a kind of double discharge plasma igniters with double air inlet bias anode constructions according to claim 1,
It is characterized in that, anode positioning bolt a (10) and anode positioning has been respectively fixedly connected on the short anode (2) and long anode (3)
Bolt b (11).
5. a kind of double discharge plasma igniters with double air inlet bias anode constructions according to claim 1,
It is characterized in that, the length of the long anode (3) is greater than the length of the groove b of anodized insulation positioning sleeve (1).
6. a kind of double discharge plasma igniters with double air inlet bias anode constructions according to claim 1,
It is characterized in that, the top of the short anode (2) and long anode (3) is in same level.
7. a kind of double discharge plasma igniters with double air inlet bias anode constructions according to claim 1,
It is characterized in that, the locating flange (12) for fixed point firearm ontology is connected on the grounding electrode (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811258766.4A CN109268191A (en) | 2018-10-26 | 2018-10-26 | A kind of double discharge plasma igniters with double air inlet bias anode constructions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811258766.4A CN109268191A (en) | 2018-10-26 | 2018-10-26 | A kind of double discharge plasma igniters with double air inlet bias anode constructions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109268191A true CN109268191A (en) | 2019-01-25 |
Family
ID=65194732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811258766.4A Withdrawn CN109268191A (en) | 2018-10-26 | 2018-10-26 | A kind of double discharge plasma igniters with double air inlet bias anode constructions |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556564A (en) * | 2003-12-31 | 2004-12-22 | 天津大学 | Ultra high energy spark plug |
| CN102121447A (en) * | 2011-01-21 | 2011-07-13 | 电子科技大学 | Magnetic coupling microwave plasma igniter for automobile engine |
| CN102913365A (en) * | 2012-10-08 | 2013-02-06 | 中国人民解放军空军工程大学 | Annular discharge based transient state plasma igniter |
| CN104454290A (en) * | 2014-10-23 | 2015-03-25 | 中国人民解放军空军工程大学 | Elongating arc plasma jet ignition device |
| CN104612879B (en) * | 2015-01-19 | 2017-02-01 | 西安航天动力研究所 | High-back-pressure plasma igniter |
| EP3379666A2 (en) * | 2013-10-16 | 2018-09-26 | Svmtech, Llc | Plasma ignition plug for an internal combustion engine |
-
2018
- 2018-10-26 CN CN201811258766.4A patent/CN109268191A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556564A (en) * | 2003-12-31 | 2004-12-22 | 天津大学 | Ultra high energy spark plug |
| CN102121447A (en) * | 2011-01-21 | 2011-07-13 | 电子科技大学 | Magnetic coupling microwave plasma igniter for automobile engine |
| CN102913365A (en) * | 2012-10-08 | 2013-02-06 | 中国人民解放军空军工程大学 | Annular discharge based transient state plasma igniter |
| EP3379666A2 (en) * | 2013-10-16 | 2018-09-26 | Svmtech, Llc | Plasma ignition plug for an internal combustion engine |
| CN104454290A (en) * | 2014-10-23 | 2015-03-25 | 中国人民解放军空军工程大学 | Elongating arc plasma jet ignition device |
| CN104612879B (en) * | 2015-01-19 | 2017-02-01 | 西安航天动力研究所 | High-back-pressure plasma igniter |
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Application publication date: 20190125 |