CN102695354A - Remote-controlled plasma torch firing gun - Google Patents
Remote-controlled plasma torch firing gun Download PDFInfo
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- CN102695354A CN102695354A CN201210088831XA CN201210088831A CN102695354A CN 102695354 A CN102695354 A CN 102695354A CN 201210088831X A CN201210088831X A CN 201210088831XA CN 201210088831 A CN201210088831 A CN 201210088831A CN 102695354 A CN102695354 A CN 102695354A
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- 238000010304 firing Methods 0.000 title abstract 4
- 230000003287 optical effect Effects 0.000 claims description 20
- 239000013307 optical fiber Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000002459 sustained effect Effects 0.000 description 24
- 238000006243 chemical reaction Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000005495 cold plasma Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention provides a remote-controlled plasma torch firing gun belonging to the technical field ofa plasma generator. The firing gun comprises a columnar inner electrode (1), a cylindrical outer electrode (2), an insulating sleeve (3), a high voltage power supply (5) and a control system (6). The columnar inner electrode (1) is fixed on the central through-hole of the insulating sleeve (3) so that the columnar inner electrode (1) is arranged on the central axis of the cylindrical outer electrode (2) and is insulated from the outer electrode. The high voltage power supply (5) imposes a high voltage power supply on a cavity between the internal electrode (1) and the outer electrode (2) to ionize the air in the cavity. The high voltage power supply (5) comprises n-level direct current voltage units. The control system (6) can remotely control the on-off of each direct current voltage unit. n refers to an integer greater than or equal to 4. The firing gun provided by the invention can be remotely controlled, and can adopt components with low voltage resistance in a booster circuit.
Description
Technical field
The present invention relates to a kind of plasma igniting rifle of Long-distance Control, belong to the plasma generator technical field.
Background technology
The current plasma that under atmospheric pressure, can produce has two kinds; A kind of is hot plasma; It is characterized in that gas temperature is often very high, approximately the 10000K magnitude is mainly used in plasma spray coating, cutting, welding, waste disposal, material surface processing and other fields.Another kind is a cold plasma, it is characterized in that gas temperature very low (near room temperature), but electron temperature is very high, therefore has very high chemism, belongs to nonequilibrium plasma.But, under the normal temperature and pressure that air ionization is bigger to produce the plasma required voltage, need several kilovolts high pressure usually.And adopt booster circuit of the prior art, and produce so high voltage, then need the resistance to pressure of device very high.
Summary of the invention
The object of the present invention is to provide a kind of plasma igniting rifle based on Long-distance Control, it can carry out Long-distance Control, and can adopt withstand voltage lower components and parts in the booster circuit.
For realizing said goal of the invention; The invention provides a kind of plasma igniting rifle of Long-distance Control; Said burning torch comprises: the interior electrode 1 of column, the external electrode 2 of tubular, insulating sleeve 3, high voltage source 5 and control system 6; Wherein, The interior electrode 1 of said column be fixed on the central through hole of insulating sleeve 3 with the interior electrode 1 with column be arranged on external electrode 2 central axis of tubular and with the external electrode insulation, on electrode 1 and the external electrode 2, provide a high voltage source with the air in the cavity between electrode in the ionization 1 and the external electrode 2 in two outputs of described high voltage source 5 are connected to respectively to give between interior electrode 1 and the external electrode 2; Said high voltage source 5 comprises the direct voltage unit of n level cascade; Each direct voltage unit is through the cascade of afterflow coil, and the break-make that control system 6 can each direct voltage unit of Long-distance Control applies required direct current energy to give interior electrode and external electrode, and said n is greater than or equal to 4 integer.
Preferably; Described high voltage source 5 comprises transformer; Said transformer comprises a primary coil and n secondary coil; Each direct voltage unit comprises a rectifier, a fly-wheel diode, an electronic switch and a driving stage, and the positive pole of said rectifier is connected in first end of a coil of transformer secondary output, and the negative pole of rectifier is connected to the negative pole of fly-wheel diode; The positive pole of fly-wheel diode is connected to first end of electronic switch; Second end of electronic switch is connected to second end of a coil of transformer secondary output to form a loop; The control end of electronic switch is connected to driving stage; By the break-make of driving stage control electronic switch, said n is greater than or equal to 4 integer.
Preferably, described electronic switch is transistor, FET or controllable silicon.。
Preferably, described control system 6 comprises a controller and n optical transmitting set, and described optical transmitting set converts the control signal of controller output to light signal so that in optical fiber, transmit.
Preferably, described high voltage source 5 also comprises n optical receiver, and described optical receiver receives the light signal of corresponding optical transmitting set emission, and converts light signal the signal of telecommunication of controlling and driving level to.
Compared with prior art, the plasma igniting rifle of Long-distance Control provided by the invention, controller can have system's versatility through software programming with Long-distance Control high voltage source output free voltage value.Can adopt the lower components and parts of withstand voltage in the high-tension circuit simultaneously.
Description of drawings
Fig. 1 is the sketch map of the plasma igniting rifle of Long-distance Control provided by the invention;
Fig. 2 is the oscillogram of the instantaneous voltage under a kind of situation of high voltage source provided by the invention;
Fig. 3 is the oscillogram of the instantaneous voltage under the another kind of situation of high voltage source provided by the invention.
Embodiment
Specify the present invention below in conjunction with accompanying drawing, identical Reference numeral is represented identical parts.
Fig. 1 is the sketch map of the plasma igniting rifle of Long-distance Control provided by the invention.As shown in Figure 1; The plasma igniting rifle of said Long-distance Control comprises: the interior electrode 1 of column, the external electrode 2 of tubular, insulating sleeve 3, high voltage source 5 and control system 6; Wherein, The interior electrode 1 of the fixing said column of the central through hole of insulating sleeve 3 is arranged at the interior electrode 1 with column on external electrode 2 central axis of tubular and with external electrode and insulate; On electrode 1 and the external electrode 2, provide a high voltage source with the air in the formed chamber between electrode in the ionization 1 and the external electrode 2 to give between interior electrode 1 and the external electrode 2 in two outputs of described high voltage source 5 are connected to respectively, the lower end of said external electrode is provided with nozzle; So that high-temperature plasma is sprayed to light so thing, like coal, oil, gaseous mixture etc.Said high voltage source 5 comprises n level direct voltage unit M
0, M
1, M
2And M
N, each direct voltage unit is through N afterflow coil L
01, L
12, L
23... the break-make that cascade, control system 6 can each direct voltage unit of Long-distance Control applies required direct current energy to give interior electrode and external electrode, and said n is greater than or equal to 4 integer, and n=N+1.The upper end of said external electrode 2 is provided with ventilation duct 4, air, steam etc. is injected between the inside and outside electrode in the formed chamber.
Described control system 6 comprises a controller and n optical transmitting set OT
0, OT
1, OT
2And OT
N, N=n-1.Described high voltage source 5 also comprises transformer and n optical receiver OR
0, OR
1, OR
2And OR
N, said transformer comprises a primary coil and n secondary coil, is transformed into needed alternating voltage with the power frequency ac voltage with 220V.Described optical transmitting set converts the control signal of controller output to light signal to arrive corresponding optical receiver through Optical Fiber Transmission.Described optical receiver receives the light signal that corresponding optical transmitting set emission comes, and the signal of telecommunication that the light signal that receives is converted to the controlling and driving level realizes being in the high voltage isolation of direct voltages at different levels unit and low level control section on the suspension voltage with this.
First direct voltage unit M
0First coil L that comprises transformer secondary output
0, a rectifier R
0, a sustained diode
0, an electronic switch and a driving stage P
0, electronic switch is CMOS pipe CMOS
0, said rectifier R
0Positive pole be connected in first coil L of transformer secondary output
0First end, rectifier R
0Negative pole be connected to sustained diode
0Negative pole; Sustained diode
0Positive pole be connected to CMOS pipe CMOS
0Drain electrode, CMOS manages CMOS
0Source electrode be connected to first coil L of transformer secondary output
0Second end, CMOS manages CMOS
0Grid be connected to driving stage P
0, by driving stage P
0According to optical receiver OR
0The control command control CMOS pipe CMOS that the controller 7 that is received is sent
0Break-make.CMOS manages CMOS
0Work on off state, as CMOS pipe CMOS
0High potential of grid input the time, CMOS manages CMOS
0Conducting, first coil L
0Second end be equivalent to receive sustained diode
0Positive pole.Rectifier R
0With first coil L
0The alternating voltage u of output
0Rectification conversion dc voltage U
0Sustained diode
0The voltage at two ends is U
0, the upper end is for just, and the lower end is for negative.As CMOS pipe CMOS
0Electronegative potential of grid input the time, CMOS manages CMOS
0End.Sustained diode
0The voltage at two ends is diode junction voltage.
In like manner, second direct voltage unit M
1Second the coil L that comprises transformer secondary output
1, a rectifier R
1, a sustained diode
1, an electronic switch and a driving stage P
1, electronic switch is CMOS pipe CMOS
1, said rectifier R
1Positive pole be connected in second coil L of transformer secondary output
1First end, rectifier R
1Negative pole be connected to sustained diode
1Negative pole; Sustained diode
1Positive pole be connected to CMOS pipe CMOS
1Drain electrode, CMOS manages CMOS
1Source electrode be connected to second coil L of transformer secondary output
1Second end, CMOS manages CMOS
1Grid be connected to driving stage P
1, by driving stage P
1According to optical receiver OR
1The control command control CMOS pipe CMOS that the controller 7 that is received is sent
1Break-make.CMOS manages CMOS
1Work on off state, as CMOS pipe CMOS
1High potential of grid input the time, CMOS manages CMOS
1Conducting, second coil L
1Second end be equivalent to receive sustained diode
1Positive pole.Rectifier R
1With first coil L
1The alternating voltage u of output
1Rectification conversion dc voltage U
1Volt.Sustained diode
1The voltage at two ends is U
1, the upper end is for just, and the lower end is for negative.As CMOS pipe CMOS
1Electronegative potential of grid input the time, CMOS manages CMOS
1End.Sustained diode
1The voltage at two ends is diode junction voltage.
The 3rd direct voltage unit M
2Second the coil L that comprises transformer secondary output
2, a rectifier R
2, a sustained diode
2, an electronic switch and a driving stage P
2, electronic switch is CMOS pipe CMOS
2, said rectifier R
2Positive pole be connected in the 3rd coil L of transformer secondary output
2First end, rectifier R
2Negative pole be connected to the negative pole of fly-wheel diode; Sustained diode
2Positive pole be connected to CMOS pipe CMOS
2Drain electrode, CMOS manages CMOS
2Source electrode be connected to the 3rd coil L of transformer secondary output
2Second end, CMOS manages CMOS
2Grid be connected to driving stage P
2, by driving stage P
2According to optical receiver OR
2The control command control CMOS pipe CMOS that the controller 7 that is received is sent
2Break-make.CMOS manages CMOS
2Work on off state, as CMOS pipe CMOS
2High potential of grid input the time, CMOS manages CMOS
2Conducting, the 3rd coil L
2Second end be equivalent to receive sustained diode
2Positive pole.Rectifier R
2With the 3rd coil L
2The alternating voltage u of output
2Rectification conversion dc voltage U
2Sustained diode
2The voltage at two ends is U
2, the upper end is for just, and the lower end is for negative.As CMOS pipe CMOS
2Electronegative potential of grid input the time, CMOS manages CMOS
2End.Sustained diode
2The voltage at two ends is diode junction voltage.
And the like, n direct voltage unit M
NN the coil L that comprises transformer secondary output
N, a rectifier R
N, a sustained diode
N, an electronic switch and a driving stage P
N, electronic switch is CMOS pipe CMOS
N, said rectifier R
NPositive pole be connected in n coil L of transformer secondary output
NFirst end, rectifier R
NNegative pole be connected to the negative pole of fly-wheel diode; Sustained diode
NPositive pole be connected to CMOS pipe CMOS
NDrain electrode, CMOS manages CMOS
NSource electrode be connected to n coil L of transformer secondary output
NSecond end, CMOS manages CMOS
NGrid be connected to driving stage P
N, by driving stage P
NAccording to optical receiver OR
NThe control command control CMOS pipe CMOS that the controller 7 that is received is sent
NBreak-make.Metal-oxide-semiconductor CMOS
NWork on off state, as CMOS pipe CMOS
NHigh potential of grid input the time, CMOS manages CMOS
NConducting, n coil L
NSecond end be equivalent to receive sustained diode
NPositive pole.Rectifier R
NWith first coil L
0The alternating voltage u of output
NRectification conversion dc voltage U
NVolt.Sustained diode
NThe voltage at two ends is U
N, the upper end is for just, and the lower end is for negative.As CMOS pipe CMOS
NElectronegative potential of grid input the time, CMOS manages CMOS
NEnd.Sustained diode
NThe voltage at two ends is diode junction voltage.
The 1st direct voltage unit M
0With the 2nd direct voltage unit M
1Between with afterflow coil L
01Link to each other, i.e. afterflow coil L
01Be connected in sustained diode
0Negative pole and sustained diode
1Positive pole between; The 2nd direct voltage unit M
1With the 3rd direct voltage unit M
2Between with afterflow coil L
12Link to each other, i.e. afterflow coil L
12Be connected in sustained diode
1Negative pole and sustained diode
2Positive pole between; And the like, the 3rd direct voltage unit M
2With the 4th direct voltage unit M
3Between with afterflow coil L
23Be connected.So, if each direct voltage unit M
0, M
1, M
2... And M
NElectronic switch all under the situation of conducting simultaneously, high voltage source 5 total output total voltages are U
Always=U
0+ U
1+ U
2+ ... + U
N High voltage source 5 also comprises filter inductance L and filter capacitor C, with filtering U
AlwaysIn the switching frequency composition.
Isoionic point firelock provided by the invention; Under clock pulse control; The output voltage sample value that control system 6 obtains through sample circuits (electric resistance partial pressure) and the voltage of reference signal compare, and sampled voltage is during less than setting voltage, and controller 7 sends instruction; Open a direct current unit, the high voltage source output voltage is raise; In the next clock cycle, if sampled voltage still less than reference signal voltage, controller 7 sends instruction, opens a direct current unit again, continues to make the high voltage source output voltage to raise; Greater than setting voltage, controller 7 sends instruction up to sampled voltage, closes a direct current unit, and the high voltage source output voltage is reduced, and equals setting voltage up to sampled voltage.
Isoionic point firelock provided by the invention can also be under clock pulse control, and control system 6 makes wherein part of direct current pressure unit (if total direct voltage unit is 12, promptly under the situation of n=12), as makes M
0, M
1And M
5At first time period of a clock cycle T [t
1, t
2] work, make wherein another part direct voltage unit M
5, M
6And M
11Second time period [t at a clock cycle T
2, t
3] work, wherein, t
3-t
2=t
2-t
1, t
3-t
1=T, then under all identical situation of the output voltage of each grade, the output voltage of high voltage source is about
As shown in Figure 2, isoionic point firelock provided by the invention can also be under clock pulse control, and control system 6 makes wherein part of direct current pressure unit, like M
0, M
1And M
5First clock section [t at one-period T
1, t
2] preceding half section time service, at first time clock section [t
1, t
2] time second half section ends; Make wherein another part direct voltage unit M
5, M
6And M
11Second time period [t at one-period T
2, t
3] preceding half section time clock work, at second time period [t
2, t
3] the second half section time clock ends, wherein, t
3-t
2=t
2-t
1, t
3-t
1=T, then under all identical situation of the output voltage of each grade, the output voltage of high voltage source is about
If control system 6 makes wherein part of direct current pressure unit (if total direct voltage unit is 12, promptly under the situation of n=12), like M
0, M
1And M
3At first time period of one-period T [t
1, t
2] work, make wherein second portion direct voltage unit M
4, M
5And M
7Second time period [t at one-period
2, t
3] work, make wherein third part direct voltage unit M
8, M
9And M
11The 3rd time period [t at one-period T
3, t
4] work, wherein, t
4-t
3=t
3-t
2=t
2-t
1, t
4-t
1=T, then under all identical situation of the output voltage of each grade, the output voltage of high voltage source is about
As shown in Figure 3, isoionic point firelock provided by the invention can also be under clock pulse control, and control system 6 makes wherein part of direct current pressure unit, like M
0, M
1And M
3At first time period of one-period T [t
1, t
2] the interior work of preceding half time period, at first time period [t
1, t
2] end in the later half time period; Make wherein second portion direct voltage unit M
4, M
5And M
7Second time period [t at one-period
2, t
3] preceding half time period in work, at second time period [t
2, t
3] the later half time period in end; Make wherein third part direct voltage unit M
8, M
9And M
11The 3rd time period [t at one-period T
3, t
4] the interior work of preceding half time period, at the 3rd time period [t
3, t
4] end in the later half time period, wherein, t
4-t
3=t
3-t
2=t
2-t
1, t
4-t
1=T, then under all identical situation of the output voltage of each grade, the output voltage of high voltage source is about
So, we can be provided with needed high voltage source through controller as required.Adopt formation that the direct voltage unit is in series to form needed high pressure simultaneously, then the components and parts of every grade of direct voltage unit do not need withstand voltage very high, can accomplish boosting inverter.
Isoionic point firelock provided by the invention is followed following rule to the switch control of direct voltage unit: when needing to open a direct current unit, always open time that direct voltage unit at most that is in closed condition; In the time of need closing a direct voltage unit, always close time that direct voltage unit at most that is in opening.Such switch control law brings two benefits: (1) each switch module operating time zone is impartial, and equivalent load is balanced; (2) to certain clock pulse frequency, the switching frequency of the electronic switch of each direct voltage unit reduces significantly.With the dc reference signal is example, if clock pulse frequency is f, high voltage source is made up of n direct voltage unit, and then the actual switch frequency of each direct voltage unit electronic switch is f/n.
Alternatively, CMOS pipe can transistor, controllable silicon replaces.
In high voltage source, introduce fly-wheel diode among the present invention, make the electronic switch of each direct voltage unit independently to control, need not conducting simultaneously or end.During the electronic switch conducting of certain direct current unit, its output voltage is that series connection inserts; When electronic switch ended, other direct current unit was through the outside circuit output voltage of fly-wheel diode (electric current), i.e. the effect of fly-wheel diode is the cut-off state at electronic switch, and current path is provided.The effect of afterflow coil is the transient state impulse disturbances that suppresses the electronic switch conducting or end moment; On the other hand, the equivalent coefficient of self-inductance of all afterflow coils also participates in constituting back level filter circuit.
Because HVDC provided by the invention can be through its output free voltage value of controller software programming, so the flame temperature of plasma igniting rifle can be set as required.Form through multi-stage cascade and produce high-tension DC power supply, so can adopt the lower components and parts of withstand voltage to accomplish low-voltage to high-tension conversion.
Though below having combined accompanying drawing has done to elaborate to design and instance according to the object of the invention; But those skilled in the art will be appreciated that; Under the prerequisite that does not break away from the present invention's design, any improvement and conversion of making based on the present invention still belongs to the content in the protection range of the present invention.
Claims (5)
1. the plasma igniting rifle of a Long-distance Control; Said burning torch comprises: the interior electrode (1) of column, the external electrode (2) of tubular, insulating sleeve (3), high voltage source (5) and control system (6); Wherein, The interior electrode (1) of said column is fixed on the central through hole of insulating sleeve (3) to be arranged on external electrode (2) central axis of tubular and with external electrode with the interior electrode (1) with column and insulate; Two outputs of described high voltage source (5) are connected to respectively on interior electrode (1) and the external electrode (2), provide a high voltage source with the air in the cavity between electrode in the ionization (1) and the external electrode (2) between interior electrode (1) and the external electrode (2) to give, and it is characterized in that; Said high voltage source (5) comprises n level cascade direct voltage unit; Each direct voltage unit is through the cascade of afterflow coil, and the break-make that control system (6) can each direct voltage unit of Long-distance Control applies needed direct current energy to give interior electrode and external electrode, and said n is greater than or equal to 4 integer.
2. plasma igniting rifle according to claim 1; It is characterized in that; Described high voltage source (5) comprises transformer, and said transformer comprises a primary coil and n secondary coil, and each direct voltage unit comprises a rectifier, a fly-wheel diode, an electronic switch and a driving stage; The positive pole of said rectifier is connected in first end of a coil of transformer secondary output, and the negative pole of rectifier is connected to the negative pole of fly-wheel diode; The positive pole of fly-wheel diode is connected to first end of electronic switch; Second end of electronic switch is connected to second end of a coil of transformer secondary output to form a loop; The control end of electronic switch is connected to driving stage, by the break-make of driving stage control electronic switch.
3. plasma igniting rifle according to claim 2 is characterized in that, described electronic switch is transistor, FET or controllable silicon.
4. plasma igniting rifle according to claim 3 is characterized in that, described control system (6) comprises a controller and n optical transmitting set, and described optical transmitting set converts the control signal of controller output to light signal so that in optical fiber, transmit.
5. plasma igniting rifle according to claim 4; It is characterized in that; Described high voltage source (5) also comprises n optical receiver, and described optical receiver receives the light signal of corresponding optical transmitting set emission, and converts light signal the signal of telecommunication of controlling and driving level to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210088831.XA CN102695354B (en) | 2012-03-30 | 2012-03-30 | Remote-controlled plasma torch firing gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210088831.XA CN102695354B (en) | 2012-03-30 | 2012-03-30 | Remote-controlled plasma torch firing gun |
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| Publication Number | Publication Date |
|---|---|
| CN102695354A true CN102695354A (en) | 2012-09-26 |
| CN102695354B CN102695354B (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210088831.XA Expired - Fee Related CN102695354B (en) | 2012-03-30 | 2012-03-30 | Remote-controlled plasma torch firing gun |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525400A (en) * | 2017-09-21 | 2017-12-29 | 航天环境工程有限公司 | The dc source of plasma smelting furnace |
| CN110324952A (en) * | 2019-06-26 | 2019-10-11 | 厦门大学 | A kind of program-controlled multichannel plasma generating device |
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| CN110324952A (en) * | 2019-06-26 | 2019-10-11 | 厦门大学 | A kind of program-controlled multichannel plasma generating device |
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| CN102695354B (en) | 2015-01-28 |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20161216 Address after: 100074 room No. A, zone, No. 7 Ash Road, Beijing, Fengtai District Patentee after: BEIJING AEROSPACE ENVIRONMENTAL ENGINEERING CO.,LTD. Address before: 243000 Anhui city of Ma'anshan province Huashan Huashan District Industrial Zone ginkgo Avenue No. 255 Patentee before: Maanshan Tongli Hydraulic Equipment Manufacturing Co.,Ltd. |
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| CB03 | Change of inventor or designer information | ||
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Inventor after: Zhang Hongce Inventor after: Shu Xiaoming Inventor before: Shu Xiaoming |
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Granted publication date: 20150128 |