CN109268189A - A kind of plasma igniter application method with air duct and fuel channel - Google Patents
A kind of plasma igniter application method with air duct and fuel channel Download PDFInfo
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- CN109268189A CN109268189A CN201811257909.XA CN201811257909A CN109268189A CN 109268189 A CN109268189 A CN 109268189A CN 201811257909 A CN201811257909 A CN 201811257909A CN 109268189 A CN109268189 A CN 109268189A
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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
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- 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
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- 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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- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The plasma igniter application method with air duct and fuel channel that the invention discloses a kind of, the specific steps are as follows: when work, a certain amount of air or fuel are passed through by air inlet a；Power supply is powered by Anodic of low-voltage first, lower anode no power；At the lower voltage, dielectric barrier discharge occurs between upper grounding electrode-anodized insulation set-Anodic, air or fuel positioned at ionization space a ionize under DC Electric Field, generate free electron and the nonequilibrium plasma with positive charge cation composition；Due to being continually fed into for air or fuel, the nonequilibrium plasma for ionizing generation continues to move downward, by isolated area and enters in ionization space b；The application can the lean flammability limit of nonequilibrium plasma is wide, reactivity be big and the advantages such as the operating air pressure height of thermal equilibrium plasma combine, and achievees the purpose that realize high energy, stable ignition within the scope of wide fuel air ratio.
Description
Technical field
The present invention relates to a kind of plasma igniter application methods, specifically a kind of to have air duct and fuel logical
The plasma igniter application method in road.
Background technique
Natural gas is used as engine fuel as a kind of clean energy resource extensively.In power train in vehicle application field, it is with CNG
The passenger car and load-carrying vehicle of fuel are increasing；In ship power field, CNG and LNG powered ship has become " made in China
Focus on research direction in 2025 " planning.Compared with gasoline, the natural gas as gaseous fuel needs bigger ignition energy,
This causes to be difficult with single spark ignitor natural gas the natural gas used for automobile engine of small cylinder diameter in actual use, because
This makes engine work by the way of having to ignite or be arranged using other fuel precombustion chamber.It is multiple which results in systems
A series of problems, such as miscellaneous, cost increases, reliability decrease.Therefore, it is necessary to take novel ignition technology, using relatively simple
Structure realizes the efficient igniting and burning of natural gas, so that natural gas engine is stablized under single-fuel mode, is reliable
Work.
Traditional engine spark plug configuration as shown in Figure 1, in structure generally by a central electrode and with its distance
Closer one or several lateral electrode compositions.When work, ignition coil is the power supply of center electrode, and voltage is up to ten thousand volts of 1.5-2.?
Under High Pressure Difference between contre electrode and lateral electrode, gas is breakdown, shape in the small space between central electrode and lateral electrode
At high temperature discharge channel, igniting and burning start.
The shortcomings that prior art are as follows: (1) existing spark plug easily leads to ignition energy utilization rate often with very high temperature rise
It is low and influence electrode life；(2) ignition range is only located at the small space between central electrode and lateral electrode, is applied to large-diameter
Engine or when being not easy fuel (such as natural gas) lighted, igniting less reliable is easily led to since ignition energy is too small.
Summary of the invention
To solve existing thermal equilibrium plasma igniter technical solution in large space burning room (combustion space) engine
Applied on (burner) and natural gas engine on apply when ignition energy it is small, igniting poor reliability, ignition energy utilization rate
The problems such as low, the application provide a kind of plasma igniter application method with air duct and fuel channel.
To achieve the above object, a kind of technical solution of the application are as follows: plasma with air duct and fuel channel
Body igniter application method, the specific steps are as follows:
A, Anodic and lower anode are powered respectively by power supply；
B, when working, a certain amount of air or fuel are passed through by air inlet a；
C, power supply is powered by Anodic of low-voltage first, lower anode no power；At the lower voltage, upper grounding electrode-
Dielectric barrier discharge occurs between anodized insulation set-Anodic, the air or fuel positioned at ionization space a are in DC Electric Field
It is lower to ionize, generate free electron and the nonequilibrium plasma with positive charge cation composition；
D, being continually fed into due to air or fuel, the nonequilibrium plasma for ionizing generation continues to move downward, pass through
Isolated area simultaneously enters in ionization space b；At this point, air inlet a stopping is passed through air or fuel, power cut-off；With that is, air inlet
B is passed through fuel or air；
E, under the high energy electron effect in generated nonequilibrium plasma, become band in the fuel molecule of electroneutral
The heavy ion of positive electricity and electronegative free electron, to be changed into nonequilibrium plasma；
F, power supply is occurred electric arc between anode under action of high voltage and lower grounding electrode and is put with higher power voltage supply
Electricity；While lower anodal closure, the air duct in lower anode is passed through air, this partial air is not involved in ionization reaction, institute
Work is to cool down for electrode, and generate disturbance to the flow field that spout goes out.
Since the reactivity of gaseous mixture at this time has improved, igniting and combustion reaction occur rapidly.Flame will be with
The form of large volume flame torch is gone out from spout, into engine chamber, is ignited and is located at indoor flammable air-combustion of burning
Expect gaseous mixture.
In entire discharge process, due to the presence of grounding electrode insulation set, ionization space a and ionization space b is completely cut off.
Therefore, dielectric barrier discharge will not occur between lower grounding electrode-anodized insulation set-anode.
The above method is implemented in igniter, the igniter include Anodic, lower anode, upper grounding electrode, under connect
Ground electrode, anodized insulation set, grounding electrode insulation set, air inlet a and air inlet b；The upper grounding electrode and lower grounding electrode
It is connected, the anodized insulation is placed in grounding electrode, and Anodic is embedded in the wall body of anodized insulation set；The lower anode
Including a sections of ontology and ontology b section, described ontology a sections are mounted in the mounting hole that anodized insulation covers, and b sections of ontology are mounted on down and connect
In ground electrode；Opened up in the junction of lower grounding electrode and upper grounding electrode fluted, the groove is located at lower grounding electrode
On inner wall, the installation of grounding electrode insulation set is in a groove；It is empty that an ionization is formed between the upper grounding electrode and anodized insulation set
Between a, forms isolated area between grounding electrode insulation set and b section of ontology of lower anode, b sections of the ontology of lower anode and lower grounding electrode
Between formed ionization space b, the ionization space a, isolated area are connected with ionization space b；The lower anode has hollow knot
Structure, the hollow structure are air duct；One end of upper grounding electrode is provided with air inlet a, air inlet a and ionization space
A is connected, and the air inlet b is located at one end of lower grounding electrode, and is obliquely installed, and air inlet b is connected with ionization space b
It is logical.
Further, igniter further includes fixing bolt, for the phase between fixed upper grounding electrode and anodized insulation set
To position.
Further, ionization space b further includes lower anode bottom space.
Further, the Anodic is located at plasma igniter center.
The present invention due to using the technology described above, can obtain following technical effect:
1. this programme uses dielectric barrier discharge-arc discharge combined discharge mode, can be by nonequilibrium plasma
Lean flammability limit is wide, reactivity is big and the advantages such as the operating air pressure height of thermal equilibrium plasma combine, reach in width
The purpose of high energy, stable ignition is realized within the scope of wide fuel air ratio；
2. not needing the indoor mixing of main burning moreover, because the fuel and air for igniting are passed through by air inlet
Gas is flow backwards, therefore can be according to ignition conditions using air (or fuel) of the control through air inlet a and the fuel through air inlet b
The method control of (or air) flow is located at the equivalent proportion of gaseous mixture in ionization space b, and reaching improves ionization according to actual condition
And the purpose of ignition results；
3. the air sprayed in air (or fuel) and lower anode that simultaneously, air inlet b is sprayed into will also play anode
Cooling effect can be played the role of extending electrode life.
Detailed description of the invention
Fig. 1 is engine spark plug configuration schematic diagram traditional in background technique；
Fig. 2 is the structural schematic diagram of embodiment 1；
Fig. 3 is the structural schematic diagram of embodiment 2；
Fig. 4 is the structural schematic diagram of embodiment 3；
Fig. 5 is ignition control strategy figure when embodiment 1-3 igniter is applied to internal combustion engine；
Fig. 6 is ignition control strategy figure when embodiment 1-3 igniter is applied to other engines and burner.
Number explanation in figure: 1, fixing bolt；2, anodized insulation set；3, Anodic；4, upper grounding electrode；5, ionization space
a；6, isolated area；7, grounding electrode insulation set；8, lower anode；9, lower grounding electrode；10, locating flange；11, ionization space b；
12, air inlet a；13, air inlet b.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments: doing as example to the application
Further description explanation.
Embodiment 1
As shown in Fig. 2, the present embodiment provides a kind of plasma igniter with fuel channel, including Anodic, under
Anode, upper grounding electrode, lower grounding electrode, anodized insulation set, grounding electrode insulation set, fixing bolt；The Anodic is located at
Igniter center is fixed in anodized insulation set；The lower anode has hollow structure, is mounted on anodized insulation set
In interior mounting hole；The anodized insulation set realizes the insulation of the two for fixing Anodic and lower anode；The anode is exhausted
Edge set is mounted on grounding electrode, and the lower end of the upper grounding electrode is connect with lower grounding electrode；The lower grounding electrode with
Groove between upper grounding electrode is for installing grounding electrode insulation set；An air inlet a is provided on the upper grounding electrode,
For being passed through fuel；The fixing bolt is for the relative position between fixed upper grounding electrode and anodized insulation set；Under described
There is a locating flange for being used to install the plasma igniter in grounding electrode lower end.According to actual needs, which can also
To be set to upper grounding electrode.
Anodic and lower anode are powered respectively by power supply.When work, a certain amount of fuel is passed through by fuel inlet respectively.This
When, power supply is first using lower voltage as Anodic power supply (such as: 10,000 volts or less), lower anode no power；At the lower voltage,
Dielectric barrier discharge occurs between upper grounding electrode-anodized insulation set-Anodic, positioned at the air (or fuel) of ionization space a
It is ionized under DC Electric Field, generates free electron and the nonequilibrium plasma with positive charge cation composition,
Chemical reactivity improves.
Due to being continually fed into for fuel, the nonequilibrium plasma for ionizing generation continues to move downward, by isolated area simultaneously
It enters in ionization space b；At this point, air inlet a stopping is passed through air (or fuel), Anodic power-off.Due to igniter spout
It is connected with engine main chamber, and main burning room pressure is larger, therefore there will be part of fuel-air gaseous mixture through spraying
Mouth adverse current enters in ionization space b.Under the high energy electron effect in generated nonequilibrium plasma, in the mixing of electroneutral
Gas molecule becomes positively charged heavy ion and electronegative free electron, so that it is changed into nonequilibrium plasma, reactivity
It improves.At this point, power supply with higher voltage (such as: ten thousand volts of 1.5-2) power, anode and lower grounding electrode under action of high voltage
Between arc discharge occurs.While lower anodal closure, the air duct in lower anode is passed through air, this partial air is not joined
With ionization reaction, role is to cool down for electrode, and generate disturbance to the flow field that spout goes out to improve burning.Due to mixing at this time
The reactivity for closing gas has improved, therefore igniting and combustion reaction occur rapidly.Flame will be in the form of large volume flame torch
It is gone out from spout, into engine chamber, ignites and be located at the indoor flammable air and fuel mixture that burns.
In entire discharge process, due to the presence of grounding electrode insulation set, ionization space a and ionization space b is completely cut off.
Therefore, dielectric barrier discharge will not occur between lower grounding electrode-anodized insulation set-anode.
1. this programme uses dielectric barrier discharge-arc discharge combined discharge mode, can be by nonequilibrium plasma
Lean flammability limit is wide, reactivity is big and the advantages such as the operating air pressure height of thermal equilibrium plasma combine, reach in width
The purpose of high energy, stable ignition is realized within the scope of wide fuel air ratio；
2. some another air and fuel mixture is inverse through spout since the fuel for igniting is passed through by fuel inlet
Ionization space b is flowed into, the gaseous mixture for being accordingly used in igniting is integrally in rich, can be further ensured that the effect that igniting is ignited
Fruit；
3. the air simultaneously, sprayed in lower anode also will play cooling effect to anode, it can play and extend electrode use
The effect in service life.
Embodiment 2
As shown in figure 3, the present embodiment provides a kind of plasma igniter with fuel channel, including Anodic, under
Anode, upper grounding electrode, lower grounding electrode, anodized insulation set, grounding electrode insulation set, fixing bolt；The Anodic is located at
Igniter center is fixed in anodized insulation set；The lower anode has hollow structure, is mounted on anodized insulation set
In interior mounting hole；The anodized insulation set realizes the insulation of the two for fixing Anodic and lower anode；The anode is exhausted
Edge set is mounted on grounding electrode, and the lower end of the upper grounding electrode is connect with lower grounding electrode；The lower grounding electrode with
Groove between upper grounding electrode is for installing grounding electrode insulation set；Air inlet there are two settings on the upper grounding electrode,
It is respectively used to be passed through air and fuel；The fixing bolt is for the opposite position between fixed upper grounding electrode and anodized insulation set
It sets；There is a locating flange for being used to install the plasma igniter in the lower grounding electrode lower end.According to actual needs, the positioning
Flange also can be set in upper grounding electrode.
Anodic and lower anode are powered respectively by power supply.When work, a certain amount of air or combustion are passed through by air inlet a respectively
Material, is passed through a certain amount of fuel or air by air inlet b；At this point, power supply first using lower voltage as Anodic power supply (such as: 1
Ten thousand volts or less), lower anode no power；At the lower voltage, medium occurs between upper grounding electrode-anodized insulation set-Anodic
Barrier discharge, the air and fuel mixture positioned at ionization space a ionize under DC Electric Field, generate free electron
And the nonequilibrium plasma with positive charge cation composition, chemical reactivity improve.With non-compared with high reaction activity
After equilibrium plasma enters ionization space b, air inlet a and air inlet b are closed.Anodic powers off at this time, and supply voltage increases
(such as: ten thousand volts of 1.5-2) and it is lower anode supply, electric arc occurs between anode under action of high voltage and lower grounding electrode and puts
Electricity.While lower anodal closure, the air duct in lower anode is passed through air, this partial air is not involved in ionization reaction, institute
Work is to cool down for electrode, and generate disturbance to the flow field that spout goes out to improve burning.Since the reaction of gaseous mixture at this time is living
Property improved, therefore light a fire and combustion reaction occur rapidly.Flame will be gone out in the form of large volume flame torch from spout, into
Enter engine chamber, ignites and be located at the indoor flammable air and fuel mixture that burns.
In entire discharge process, due to the presence of grounding electrode insulation set, ionization space a and ionization space b is completely cut off.
Therefore, dielectric barrier discharge will not occur between lower grounding electrode-anodized insulation set-anode.
This programme uses dielectric barrier discharge-arc discharge combined discharge mode, can be by nonequilibrium plasma
Lean flammability limit is wide, reactivity is big and the advantages such as the operating air pressure height of thermal equilibrium plasma combine, and reaches in broadness
Fuel air ratio within the scope of realize high energy, stable ignition purpose；Moreover, because the fuel and air for igniting are by air inlet
It is passed through, does not need the indoor gaseous mixture of main burning and flow backwards, therefore can be according to ignition conditions using air of the control through air inlet a
And the method control of the fuel flow rate through air inlet b is located at the equivalent proportion of gaseous mixture in ionization space a and ionization space b, reaches
Improve the purpose of ionization and ignition results according to actual condition.Meanwhile a small amount of sky is passed through in the lower anode with hollow structure
Gas can be reached for electrode cooling, and generate disturbance to the flow field that spout goes out to improve the effect of burning.
Embodiment 3
As shown in figure 4, the present embodiment provides a kind of plasma igniter with fuel channel, including Anodic, under
Anode, upper grounding electrode, lower grounding electrode, anodized insulation set, grounding electrode insulation set, fixing bolt；The Anodic is located at
Igniter center is fixed in anodized insulation set；The lower anode has hollow structure, is mounted on anodized insulation set
In interior mounting hole；The anodized insulation set realizes the insulation of the two for fixing Anodic and lower anode；The anode is exhausted
Edge set is mounted on grounding electrode, and the lower end of the upper grounding electrode is connect with lower grounding electrode；The lower grounding electrode with
Groove between upper grounding electrode is for installing grounding electrode insulation set；The fixing bolt is for fixed upper grounding electrode and sun
Relative position between the insulation sleeve of pole；An air inlet a is provided on the upper grounding electrode, for being passed through air or fuel；
An air inlet b is provided on the lower grounding electrode, for being passed through fuel or air；There is a use in the lower grounding electrode lower end
In the locating flange for installing the plasma igniter.According to actual needs, which also can be set in upper grounding electrode.
Anodic and lower anode are powered respectively by power supply.When work, respectively by air inlet a be passed through a certain amount of air (or
Fuel).At this point, power supply is first using lower voltage as Anodic power supply (such as: 10,000 volts or less), lower anode no power；Lower
Under voltage, dielectric barrier discharge occurs between upper grounding electrode-anodized insulation set-Anodic, positioned at the air of ionization space a
(or fuel) ionizes under DC Electric Field, generates free electron and non-equilibrium etc. with positive charge cation composition
Gas ions, chemical reactivity improve.Due to being continually fed into for air (or fuel), ionize the nonequilibrium plasma of generation after
It is continuous to move downward, by isolated area and enter in ionization space b.At this point, air inlet a stopping is passed through air (or fuel), electricity
Source power-off.With that is, air inlet b is passed through fuel (or air)；High energy electron effect in generated nonequilibrium plasma
Under, become positively charged heavy ion and electronegative free electron in the fuel molecule of electroneutral, to be changed into non-equilibrium etc.
Gas ions, reactivity improve.At this point, power supply with higher voltage (such as: ten thousand volts of 1.5-2) power, under action of high voltage
Arc discharge occurs between anode and lower grounding electrode.While lower anodal closure, the air duct in lower anode is passed through sky
Gas, this partial air are not involved in ionization reaction, and role is to cool down for electrode, and generate disturbance to the flow field that spout goes out to change
Kind burning.Since the reactivity of gaseous mixture at this time has improved, igniting and combustion reaction occur rapidly.Flame will be with big
The form of volume flame torch is gone out from spout, into engine chamber, is ignited and is located at the indoor flammable air-fuel that burns
Gaseous mixture.
In entire discharge process, due to the presence of grounding electrode insulation set, ionization space a and ionization space b is completely cut off.
Therefore, dielectric barrier discharge will not occur between lower grounding electrode-anodized insulation set-anode.
1. this programme uses dielectric barrier discharge-arc discharge combined discharge mode, can be by nonequilibrium plasma
Lean flammability limit is wide, reactivity is big and the advantages such as the operating air pressure height of thermal equilibrium plasma combine, reach in width
The purpose of high energy, stable ignition is realized within the scope of wide fuel air ratio；
2. not needing the indoor mixing of main burning moreover, because the fuel and air for igniting are passed through by air inlet
Gas is flow backwards, therefore can be according to ignition conditions using air (or fuel) of the control through air inlet a and the fuel through air inlet b
The method control of (or air) flow is located at the equivalent proportion of gaseous mixture in ionization space b, and reaching improves ionization according to actual condition
And the purpose of ignition results；
3. the air sprayed in air (or fuel) and lower anode that simultaneously, air inlet b is sprayed into will also play anode
Cooling effect can be played the role of extending electrode life.
Embodiment 4
The control method of above-described embodiment 1-3 igniter includes control method on piston-mode motor, in other hairs
The control method of motivation and burner；
(1) control method on piston-mode motor (reciprocating or rotary piston) specifically:
Crankshaft position sensor judges crank position, if current crank angle does not arrive setting value, continues to judge；If having arrived
Setting value then instructs power supply output low pressure discharge by ECU.
After power supply is connected to electric discharge instruction, a certain lower voltage U1 is exported to Anodic, is denoted as time t1.At this point, Anodic
It discharges with upper grounding electrode, forms dielectric barrier discharge in ionization space a, the gas in ionization space a is ionized to
Nonequilibrium plasma.It is moved downward with that is, being ionized gas, enters ionization space b by insulating space through the Δ t time.
In t1+ time Δt, low pressure discharge instruction is terminated, Anodic power-off.At this point, ECU refers to power supply output electrion
It enables, the downward anode of power supply exports a certain high voltage U2 (U2 > U1)；At this point, lower anode and lower grounding electrode discharge, it is empty in ionization
Between arc discharge is formed in b, the nonequilibrium plasma in ionization space b with very high reaction activity is ignited, and is burnt
Reaction starts；Flame goes out spout in the form of flame torch, enters main chamber (combustion space).Lower anode discharge it is same
When, ECU exports control instruction, and the air duct of downward anode is passed through air, and cooling for lower anode, this partial air goes out spray
Mouthful, disturbance is generated to flame jet flow field, promotes combustion efficiency.
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
To power source output command, with U2+ Δ U to lower anode discharge, and continue to read cylinder pressure signal, until lighting a fire successfully；If working as
Discharge voltage still judges loss of ignition when increasing to setting value U3 (U3 > U2) always, to guarantee that ignitor terminates safely electric discharge,
This circulation is no longer lighted a fire.
(2) in the control method of other engines and burner specifically:
ECU issues low pressure discharge instruction to power supply.After power supply is connected to electric discharge instruction, a certain lower voltage is exported to Anodic
U1 is denoted as time t1.At this point, Anodic and upper grounding electrode discharge, dielectric barrier discharge is formed in ionization space a, is located at
Gas in ionization space a is ionized to nonequilibrium plasma.It moves downward with that is, being ionized gas, passes through through the Δ t time
Insulating space enters ionization space b.
In t1+ time Δt, low pressure discharge instruction is terminated, Anodic power-off.At this point, ECU refers to power supply output electrion
It enables, the downward anode of power supply exports a certain high voltage U2 (U2 > U1).At this point, lower anode and lower grounding electrode discharge, it is empty in ionization
Between arc discharge is formed in b, the nonequilibrium plasma in ionization space b with very high reaction activity is ignited, and is burnt
Reaction starts.Flame goes out spout in the form of flame torch, enters main chamber (combustion space).Lower anode discharge it is same
When, ECU exports control instruction, and the air duct of downward anode is passed through air, and cooling for lower anode, this partial air goes out spray
Mouthful, disturbance is generated to flame jet flow field, promotes combustion efficiency.
ECU reads temperature sensor signal, obtains temperature T in combustion space.If temperature T is greater than a certain setting value T1, then
Think to light a fire successfully, electrion instruction immediately terminates, and lower anodal opening, ignition process terminates.If temperature T is less than T1, recognize
For loss of ignition, ECU is to power source output command at this time, with U2+ Δ U to lower anode discharge, and continues to read temperature signal, until
Until lighting a fire successfully；If still judging loss of ignition when discharge voltage increases to always setting value U3 (U3 > U2), to guarantee igniting
Electrode terminates safely electric discharge, and exports failure alarm signal.
The protection scope of the invention is not limited thereto, and anyone skilled in the art is in the present invention
It creates in the technical scope disclosed, the technical solution and its inventive concept created according to the present invention are subject to equivalent substitution or change,
It should all cover within the protection scope of the invention.
Claims (1)
1. a kind of plasma igniter application method with air duct and fuel channel, which is characterized in that specific steps
It is as follows:
A, Anodic and lower anode are powered respectively by power supply；
B, when working, a certain amount of air or fuel are passed through by air inlet a；
C, power supply is powered by Anodic of low-voltage first, lower anode no power；At low voltage, upper grounding electrode-anode is exhausted
Dielectric barrier discharge occurs between edge set-Anodic, the air or fuel positioned at ionization space a occur under DC Electric Field
Ionization generates free electron and the nonequilibrium plasma with positive charge cation composition；
D, being continually fed into due to air or fuel, the nonequilibrium plasma for ionizing generation continue to move downward, by isolation
Area simultaneously enters in ionization space b；At this point, air inlet a stopping is passed through air or fuel, power cut-off；With that is, air inlet b is logical
Enter fuel or air；
E, under the high energy electron effect in generated nonequilibrium plasma, become positively charged in the fuel molecule of electroneutral
Heavy ion and electronegative free electron, to be changed into nonequilibrium plasma；
F, between anode under action of high voltage and lower grounding electrode arc discharge occurs for power supply with higher power voltage supply；?
While lower anodal closure, the air duct in lower anode is passed through air, this partial air is not involved in ionization reaction, role
It is to cool down for electrode, and disturbance is generated to the flow field that spout goes out.
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| CN201811257909.XA CN109268189A (en) | 2018-10-26 | 2018-10-26 | A kind of plasma igniter application method with air duct and fuel channel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436686A (en) * | 2019-09-18 | 2019-11-12 | 大连民族大学 | A kind of water treatment facilities using liquid injection technology |
| CN110454810A (en) * | 2019-08-01 | 2019-11-15 | 沈阳航空航天大学 | Using the fuel atomizer and control method of single electrode plasma jet stream |
Citations (4)
| 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 |
| US20100186414A1 (en) * | 2008-12-15 | 2010-07-29 | Sonic Blue Aerospace, Inc. | Magnetic ion plasma annular injection combustor |
| CN104779524A (en) * | 2014-12-30 | 2015-07-15 | 大连理工大学 | Dielectric barrier discharge non-equilibrium plasma spark plug for internal combustion engine |
| CN104879780A (en) * | 2014-02-28 | 2015-09-02 | 北京大学 | Multichannel plasma area igniting burner |
-
2018
- 2018-10-26 CN CN201811257909.XA patent/CN109268189A/en not_active Withdrawn
Patent Citations (4)
| 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 |
| US20100186414A1 (en) * | 2008-12-15 | 2010-07-29 | Sonic Blue Aerospace, Inc. | Magnetic ion plasma annular injection combustor |
| CN104879780A (en) * | 2014-02-28 | 2015-09-02 | 北京大学 | Multichannel plasma area igniting burner |
| CN104779524A (en) * | 2014-12-30 | 2015-07-15 | 大连理工大学 | Dielectric barrier discharge non-equilibrium plasma spark plug for internal combustion engine |
Non-Patent Citations (1)
| Title |
|---|
| 胡宏斌: "非平衡等离子体助燃低热值气体燃料的实验研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454810A (en) * | 2019-08-01 | 2019-11-15 | 沈阳航空航天大学 | Using the fuel atomizer and control method of single electrode plasma jet stream |
| CN110454810B (en) * | 2019-08-01 | 2020-06-30 | 沈阳航空航天大学 | Fuel oil atomizing nozzle adopting single electrode plasma jet and control method |
| CN110436686A (en) * | 2019-09-18 | 2019-11-12 | 大连民族大学 | A kind of water treatment facilities using liquid injection technology |
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