CN101636034B - Device and method for AC uninterrupted arc power supply - Google Patents
Device and method for AC uninterrupted arc power supply Download PDFInfo
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- CN101636034B CN101636034B CN 200810117133 CN200810117133A CN101636034B CN 101636034 B CN101636034 B CN 101636034B CN 200810117133 CN200810117133 CN 200810117133 CN 200810117133 A CN200810117133 A CN 200810117133A CN 101636034 B CN101636034 B CN 101636034B
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Abstract
The invention relates to the field of high-voltage discharge, in particular to a device and a method for AC uninterrupted arc power supply. In order to solve the phenomenon that zero passage arising because of AC power supply adopted in the prior art causes arc stop, a main AC power source of the device provides an arc-generating device with voltage for generating arc; the output of an AC arc-striking power source is subjected to voltage boost and frequency boost through a voltage-frequency boost circuit and then is always loaded on the arc-generating device in order to ignite the arc-generating device; and when the main AC power source has zero passage, the arc-generating device continues to be supplied with power by the output of the AC arc-striking power source subjected to voltage boost and frequency boost in order to generate arc. The method and the device for AC plasma uninterrupted arc power supply have the advantages of no longer suffering from the influence of AC power zero passage when AC is used, allowing equipment to uninterruptedly generate arc for generating plasma, and improving production efficiency.
Description
Technical field
The present invention relates to the electrion field, particularly ac high-voltage discharge field, be a kind of AC uninterrupted arc electric supply installation and method concretely.
Background technology
Plasma generator can provide a kind of efficient and clean thermal source-plasma flow, it is widely used in the industrial circles such as utility boiler igniting, cutting, welding, spraying, metallurgical, chemical industry and refuse processing, and material, aerospace scientific domain.Hot plasma has very high temperature and energy density, and contain a considerable amount of charged particles (electronics and ion), it is different from the high-temperature gas with the method generation of chemical combustion, and the technical processs that much can not complete in the past can realize under plasma condition well.In 20 years, the arc discharge method development is very fast in the past, has had widely at industrial circle and has used.
Use in China's direct current plasma technology and account for main flow, as direct current plasma firing technique, the useless processing of direct current plasma danger, direct current plasma cutting etc.
Chinese invention patent application numbers 90107760.7, denomination of invention discloses a kind of scheme of utilizing direct current to power to the Plasma Welding workpiece for " DC supply for arc welding machine ".
The AC plasma technology also has certain application, as Chinese Academy of Sciences's mechanics danger useless what process that stove adopts is exactly the AC plasma technology.
Chinese utility model patent application number 91218460.4, utility model name are called " a kind of arc starting arrangement for non-melt electrode welding " and disclose scheme by the instantaneous electric arc that contacts to ignite in auxiliary electrical cartridge and the side of main electrode.This scheme just removes the striking power supply after the electric arc that ignites.
And have following deficiency when using alternating current to discharge in prior art, the ac main power that is used for power supply in prior art typically uses the power supply of high voltagehigh frequency, because raising frequency cost that powerful main power source is boosted is very high, and technical sophistication, so ac main power and being of little use.
And have twice zero passage in one-period due to AC power, if the air between electrode is not the state of being ionized that is in, electrical discharge arc will extinguish, and can not produce plasma.Utilize AC power to produce plasma usually all under more stable flow conditions in prior art, after namely producing plasma by electric arc, near the gas electric arc does not flow usually, even if the phenomenon of arc occurs ceasing, plasma still is in ionized state.If but have mobile gas near electric arc, just can not keep plasma for the AC power with zero passage phenomenon.So be badly in need of at present a kind ofly can solving AC power zero passage in prior art and technical scheme that guiding discharge electric arc interrupts, with the purpose that guarantees that flow gas ionizes.
In the introducing mode, it is herein incorporated.
Summary of the invention
The object of the present invention is to provide a kind of AC uninterrupted arc electric supply installation, when be used for solving prior art and using AC power to carry out electrion, due to the zero passage phenomenon that the characteristic of AC power produces, the problem that arc discharge stops.
Another object of the present invention is to provide a kind of AC uninterrupted arc method of supplying power to, use the striking power supply of high voltagehigh frequency to solve the problem that in prior art, main AC power ceases arc.
to achieve these goals, the embodiment of the present invention provides a kind of AC uninterrupted arc electric supply installation, it is characterized in that this device comprises, exchange the striking power supply, the raising frequency circuit boosts, main AC power, voltaic arc generating device, described main AC power powers to produce electric arc to described voltaic arc generating device, the output of described interchange striking power supply is through after the processing of the described raising frequency circuit that boosts, the described interchange striking power supply output of boosted raising frequency loads on described voltaic arc generating device all the time, when the zero passage phenomenon appears in described main AC power, described voltaic arc generating device continues to power to produce electric arc by the output of the interchange striking power supply of described boosted raising frequency.
A further aspect according to a kind of AC uninterrupted arc electric supply installation of the present invention, the described raising frequency circuit that boosts comprises the two-stage raising frequency circuit that boosts, the first order raising frequency circuit that boosts is increased to the first magnitude of voltage with the output voltage of described interchange striking power supply, and with frequency upgrading to the first frequency value; The second level raising frequency circuit that boosts is increased to the second voltage value with described through the boost output voltage of the interchange striking power supply after the raising frequency processing of circuit of the first order, and with frequency upgrading to the second frequency value.
According to another further aspect of a kind of AC uninterrupted arc electric supply installation of the present invention, the described first raising frequency circuit that boosts comprises, the first transformer is used for improving the output voltage of described interchange striking power supply; The first oscillating circuit by described the first transformer time limit and the first Capacitance parallel connection consist of is used for improving described interchange striking power supply output frequency;
The described second raising frequency circuit that boosts comprises, the second transformer is used for improving again described through the first output voltage that boosts the interchange striking power supply that the raising frequency processing of circuit crosses; The second oscillating circuit that is consisted of by described the second transformer time limit and the second Capacitance parallel connection, described through the first interchange striking power supply output frequency that the raising frequency processing of circuit crosses that boosts for improving again.
According to another further aspect of a kind of AC uninterrupted arc electric supply installation of the present invention, the described first raising frequency circuit that boosts also comprises tungsten electrode, is parallel to the inferior limit of described the first transformer, is used for discharging the electric energy of described the first oscillating circuit.
According to another further aspect of a kind of AC uninterrupted arc electric supply installation of the present invention, described main AC power and described the second Capacitance parallel connection provide the main alternating voltage that produces electric arc to described voltaic arc generating device.
According to another further aspect of a kind of AC uninterrupted arc electric supply installation of the present invention, described interchange striking power acquisition wye connection, described main AC power adopts wye connection;
Perhaps described interchange striking power acquisition triangular form connection, described main AC power adopts the triangular form connection.
Another further aspect according to a kind of AC uninterrupted arc electric supply installation of the present invention, the interchange striking electric power output voltage of the star-like connection method of described employing is 220V, frequency is 50Hz, and adopting the main AC power output voltage of star-like connection method is 220V, and frequency is 50Hz;
The interchange striking electric power output voltage of described employing triangular form connection method is 380V, and frequency is 50Hz, and adopting the main AC power output voltage of star-like connection method is 380V, and frequency is 50Hz.
According to another further aspect of a kind of AC uninterrupted arc electric supply installation of the present invention, the power output of described interchange striking power supply is much smaller than the power output of described main AC power.
Another further aspect according to a kind of AC uninterrupted arc electric supply installation of the present invention has mobile gas between the sparking electrode of described voltaic arc generating device.
The embodiment of the present invention also provides a kind of AC uninterrupted arc method of supplying power to, it is characterized in that the method comprises, the output that exchanges the striking power supply raising frequency that boosts is processed, the output that exchanges the striking power supply that raising frequency processed of boosting of main AC power and described process is all loaded on voltaic arc generating device, when the zero passage phenomenon appearred in described main AC power, described voltaic arc generating device continued to power to produce electric arc by the output of the interchange striking power supply of described boosted raising frequency.
A further aspect according to a kind of AC uninterrupted arc method of supplying power to of the present invention, the described raising frequency that boosts is processed and to be comprised that the two-stage raising frequency that boosts processes, the first order output voltage that raising frequency processes described interchange striking power supply that boosts is increased to the first magnitude of voltage, and with frequency upgrading to the first frequency value; The second level raising frequency that boosts is processed and to be increased to the second voltage value with described through the boost output voltage of the interchange striking power supply of raising frequency after processing of the first order, and with frequency upgrading to the second frequency value.
According to another further aspect of a kind of AC uninterrupted arc method of supplying power to of the present invention, described first raising frequency that boosts is processed and to be comprised, the first transformer is used for improving the output voltage of described interchange striking power supply; The first oscillating circuit by described the first transformer time limit and the first Capacitance parallel connection consist of is used for improving described interchange striking power supply output frequency;
Described second raising frequency that boosts is processed and to be comprised, the second transformer is used for improving again described through the first output voltage that boosts the interchange striking power supply that raising frequency processed; The second oscillating circuit that is consisted of by described the second transformer time limit and the second Capacitance parallel connection, described through the first interchange striking power supply output frequency that raising frequency processed that boosts for improving again.
According to another further aspect of a kind of AC uninterrupted arc method of supplying power to of the present invention, the described first raising frequency circuit that boosts also comprises tungsten electrode, is parallel to the inferior limit of described the first transformer, is used for discharging the electric energy of described the first oscillating circuit.
According to another further aspect of a kind of AC uninterrupted arc method of supplying power to of the present invention, described main AC power and described the second Capacitance parallel connection provide the main alternating voltage that produces electric arc to described voltaic arc generating device.
According to another further aspect of a kind of AC uninterrupted arc method of supplying power to of the present invention, described interchange striking power acquisition wye connection, described main AC power adopts wye connection;
Perhaps described interchange striking power acquisition triangular form connection, described main AC power adopts the triangular form connection.
Another further aspect according to a kind of AC uninterrupted arc method of supplying power to of the present invention, the interchange striking electric power output voltage of the star-like connection method of described employing is 220V, frequency is 50Hz, and adopting the main AC power output voltage of star-like connection method is 220V, and frequency is 50Hz;
The interchange striking electric power output voltage of described employing triangular form connection method is 380V, and frequency is 50Hz, and adopting the main AC power output voltage of star-like connection method is 380V, and frequency is 50Hz.
According to another further aspect of a kind of AC uninterrupted arc method of supplying power to of the present invention, the power output of described interchange striking power supply is much smaller than the power output of described main AC power.
Another further aspect according to a kind of AC uninterrupted arc method of supplying power to of the present invention has mobile gas between the sparking electrode of described voltaic arc generating device.
The beneficial effect of the embodiment of the present invention is, AC plasma uninterrupted arc method of supplying power to of the present invention and device no longer are subject to the impact of AC power zero passage phenomenon when using alternating current, can allow the continual generation electric arc of equipment, in order to producing plasma, and enhance productivity.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, does not consist of limitation of the invention.In the accompanying drawings:
Figure 1 shows that a kind of AC uninterrupted arc electric supply installation of the present invention circuit theory diagrams;
Figure 2 shows that AC plasma power supply circuits power acquisition of the present invention is with an embodiment circuit diagram of star-like connection;
Figure 3 shows that the embodiment circuit diagram that AC plasma power supply circuits power acquisition of the present invention connects with triangular form;
Figure 4 shows that the inventive method flow chart.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with execution mode and accompanying drawing, the present invention is described in further details.At this, exemplary embodiment of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.
The embodiment of the present invention provides a kind of AC uninterrupted arc electric supply installation and method.The present invention is described in detail below in conjunction with accompanying drawing.
Be illustrated in figure 1 as a kind of AC uninterrupted arc electric supply installation of the present invention circuit theory diagrams, comprise striking power supply 101, first class boost raising frequency circuit 102, the secondary raising frequency circuit 103 that boosts, voltaic arc generating device 104, main power source 105.Described arc ignition circuit 101 is in series with described first class boost raising frequency circuit 102, described first class boost raising frequency circuit 102 and the described secondary raising frequency circuit 103 that boosts is in series, the described secondary raising frequency circuit 103 that boosts is connected with described voltaic arc generating device 104, and described voltaic arc generating device 104 is connected with described main power source 105.
Described striking power supply 101 is AC power, and it is 220V that voltage generally can be provided, and the very little power supply output of current strength.
Described first class boost raising frequency circuit 102, the output of described striking power supply 101 is boosted, and the frequency of described striking power supply 101 output currents is raise, and for example voltage is that 220V, frequency are that the municipal electricity consumption of 50Hz is increased to voltage for example by first class boost raising frequency circuit 102 that 4KV, frequency are 4KHz.
The described secondary raising frequency circuit 103 that boosts, the voltage of the electric current of described first class boost raising frequency circuit 102 outputs is raise again, frequency improves again, be for example that 4KV, frequency are the electric current of 4KHz with first class boost raising frequency circuit 102 output voltages, voltage is increased to several ten thousand V, frequency is increased to several ten thousand hertz, and for example voltage is increased to 28KV, and frequency is increased to 30KHz.
Described voltaic arc generating device 104 can be for plasma produces equipment, for example plasma ejecting gun.
Striking power supply 101 is because the processing of raising frequency circuit of boosting through two-stage is all significantly increased striking voltage and the frequency that voltaic arc generating device 104 receives, and current strength very little (because the boost impedance of raising frequency circuit of two-stage is very large).Voltaic arc generating device 104 produces electric arc by the igniting of described striking power supply 101, and powered by the discharge of 105 pairs of voltaic arc generating devices 104 of main power source this moment.when main power source 105 is powered to voltaic arc generating device 104 with the frequency of 50Hz, when zero passage occurring, because the striking power supply of high voltagehigh frequency exists always, voltaic arc generating device 104 is powered by the striking power supply when main power source 105 zero passage, voltaic arc generating device 105 still can rely on the boost output of raising frequency circuit 103 of secondary, namely, the electric current of the voltage of several ten thousand volts and several ten thousand hertz frequencies is powered, use the boost electrical discharge arc of output current pilot arc generation device 104 of raising frequency circuit 103 of above-mentioned secondary, thereby realize the continual generation electric arc of voltaic arc generating device 104.
As preferred embodiment, the raising frequency that boosts for the first time of the striking power supply A that described first class boost raising frequency circuit is realized, described secondary striking power supply A that the raising frequency circuit the realizes raising frequency that boosts for the second time that boosts can be realized the described striking power supply A raising frequency that once boosts by the raising frequency circuit that boosts.
Be illustrated in figure 2 as AC plasma power supply circuits power acquisition of the present invention with an embodiment circuit diagram of star-like connection, this embodiment striking power supply and main power source all adopt 3 cross streams power supplys, N is ground, each striking power supply and main power source be one in 3 cross streams electricity mutually, wherein the power of striking power supply is much smaller than the power of main power source.As shown in the figure, the voltage of striking power supply A is 220V, frequency is 50Hz, current strength is very little, and for example less than 2A, this is due to the very large realization of impedance of the transformer of back and LC oscillation circuit, therefore the power output of striking power supply A is very little, therefore low to the equipment cost of its raising frequency that boosts, equipment is small and exquisite, and this striking power supply A is by the main limit of resistance R 1 to transformer B1.Through the voltage rising (be increased to 4KV) of transformer B1 with striking power supply A, the inferior limit of transformer B1 and capacitor C 1 consist of the LC oscillation circuit, be used for improving the frequency of striking power supply A, for example be increased to 4KHz, wherein also has tungsten electrode HH1, in parallel with the inferior limit of transformer, for the electric energy that discharges this oscillation circuit.Then, the electric current of the striking power supply A that boosts through transformer B1 is through the main limit of transformer B4.Through again boosting of transformer B4, at the voltage on transformer B4 limit up to several ten thousand volts (for example 28KV), inferior limit and the capacitor C 4 of transformer B4 have consisted of another oscillation circuit, be used for improving the frequency of striking power supply A, the power frequency of so far striking power supply A output is elevated to several ten thousand Hz (for example 30KHz), also being in series with voltaic arc generating device in this oscillation circuit, is AC plasma ejecting gun A (being called for short the A rifle in figure) in this example.The voltage of main power source UA is that hundreds of volt (for example 220V) frequency is 50Hz, current strength can be 100A-800A, perhaps current strength is higher, perhaps can be set by the user, this main power source UA and a reactor A are in series, described reactor A is used for preventing electric current to the impact of upstream circuitry, and can regulates described mains current intensity by regulating this reactor A; Described main power source UA connects with inferior limit, the AC plasma ejecting gun A of described transformer B4, provides to described AC plasma ejecting gun A the AC power that excites arc discharge and produce isoionic 220V, 50Hz.When main power source UA is loaded into AC plasma ejecting gun A, because the described plasma ejecting gun A of effect of the electric current of described striking power supply A high-frequency and high-voltage is lighted a fire, these emission of ions rifles A is powered by described main power source UA, keeps the state that described plasma ejecting gun A produces electric arc; When producing the zero passage situation due to the characteristic main power source UA of AC power, described AC plasma ejecting gun A excites electric arc for generation of plasma by high-frequency, the continual power supply of high-tension striking power supply A.Even have the environment of moving air in AC plasma ejecting gun A, also can continual generation plasma.
striking power supply category-B is like above-mentioned striking power supply A, striking power supply B connection transformer B2 boosts, carry out the raising of frequency in the oscillation circuit that the inferior limit of transformer B2 and capacitor C 2 consist of, boosting through transformer B5, after carrying out the raising of frequency in the oscillation circuit that the inferior limit of transformer B5 and capacitor C 5 consist of, this striking power supply B not only is used for the igniting of AC plasma ejecting gun B, and the breath arc phenomenon that occurs due to zero passage during to AC plasma ejecting gun B (in figure be called for short B rifle) power supply as main power source UB, being provided to AC plasma ejecting gun B by the striking power supply B of this high voltagehigh frequency excites electric arc in order to produce isoionic AC power.
the similar above-mentioned striking power supply A of striking power supply C, striking power supply C connection transformer B3 boosts, carry out the raising of frequency in the oscillation circuit that the inferior limit of transformer B3 and capacitor C 3 consist of, boosting through transformer B6, after carrying out the raising of frequency in the oscillation circuit that the inferior limit of transformer B6 and capacitor C 6 consist of, this striking power supply C not only is used for the igniting of AC plasma ejecting gun C, and the breath arc phenomenon that occurs due to zero passage during to AC plasma ejecting gun C (in figure be called for short C rifle) power supply as main power source UC, being provided to AC plasma ejecting gun C by the striking power supply C of this high voltagehigh frequency excites electric arc in order to produce isoionic AC power.
Be illustrated in figure 3 as the embodiment circuit diagram that AC plasma power supply circuits power acquisition of the present invention connects with triangular form, this embodiment striking power supply and main power source all adopt 3 cross streams power supplys, each striking power supply and main power source be one in 3 cross streams electricity mutually, wherein the power of main power source is much larger than the power of striking power supply.As shown in the figure, the line voltage of striking power supply A is 380V, frequency is 50Hz, current strength is very little, and for example less than 2A, this is due to the very large realization of impedance of the transformer of back and LC oscillation circuit, therefore the power output of striking power supply A is very little, therefore low to the equipment cost of its raising frequency that boosts, equipment is small and exquisite, and this striking power supply A is by the main limit of resistance R 1 to transformer B1.Through the voltage rising (for example 4KV) of transformer B1 with striking power supply A, the inferior limit of transformer B1 and capacitor C 1 consist of the LC oscillation circuit, be used for improving the frequency of striking power supply A, for example be increased to 4KHz, wherein also has tungsten electrode HH1, in parallel with the inferior limit of transformer, for the electric energy that discharges this oscillation circuit.Then, the electric current of the striking power supply A that boosts through transformer B1 is through the main limit of transformer B4.Through again boosting of transformer B4, at the voltage on transformer B4 limit up to several ten thousand volts (28KV), inferior limit and the capacitor C 4 of transformer B4 have consisted of another oscillation circuit, be used for improving the frequency of striking power supply A, the power frequency of so far striking power supply A output is elevated to several ten thousand Hz (30KHz), also being in series with voltaic arc generating device in this oscillation circuit, is AC plasma ejecting gun A (being called for short the A rifle in figure) in this example.The line voltage of main power source UA is that hundreds of volt (for example 380V) frequency is 50Hz, current strength can be between 100A-800A, perhaps current strength is higher, perhaps can be set by the user, this main power source UA and a reactor A are in series, and described reactor A is used for preventing that electric current is to the impact of upstream circuitry; Described main power source UA connects with inferior limit, the AC plasma ejecting gun A of described transformer B4, provides to described AC plasma ejecting gun A the AC power that excites arc discharge and produce isoionic 380V, 50Hz.When main power source UA is loaded into AC plasma ejecting gun A, because the described plasma ejecting gun A of effect of the electric current of described striking power supply A high-frequency and high-voltage is lighted a fire, these emission of ions rifles A is powered by described main power source UA, keeps the state that described plasma ejecting gun A produces electric arc; When producing the zero passage situation due to the characteristic main power source UA of AC power, described AC plasma ejecting gun A excites electric arc for generation of plasma by high-frequency, the continual power supply of high-tension striking power supply A.Even have the environment of moving air in AC plasma ejecting gun A, also can continual generation plasma.
striking power supply category-B is like above-mentioned striking power supply A, striking power supply B connection transformer B2 boosts, carry out the raising of frequency in the oscillation circuit that the inferior limit of transformer B2 and capacitor C 2 consist of, boosting through transformer B5, after carrying out the raising of frequency in the oscillation circuit that the inferior limit of transformer B5 and capacitor C 5 consist of, this striking power supply B not only is used for the igniting of AC plasma ejecting gun B, and the breath arc phenomenon that occurs due to zero passage during to AC plasma ejecting gun B (in figure be called for short B rifle) power supply as main power source UB, being provided to AC plasma ejecting gun B by the striking power supply B of this high voltagehigh frequency excites electric arc in order to produce isoionic AC power.
the similar above-mentioned striking power supply A of striking power supply C, striking power supply C connection transformer B3 boosts, carry out the raising of frequency in the oscillation circuit that the inferior limit of transformer B3 and capacitor C 3 consist of, boosting through transformer B6, after carrying out the raising of frequency in the oscillation circuit that the inferior limit of transformer B6 and capacitor C 6 consist of, this striking power supply C not only is used for the igniting of AC plasma ejecting gun C, and the breath arc phenomenon that occurs due to zero passage during to AC plasma ejecting gun C (in figure be called for short C rifle) power supply as main power source UC, being provided to AC plasma ejecting gun C by the striking power supply C of this high voltagehigh frequency excites electric arc in order to produce isoionic AC power.
Be illustrated in figure 4 as the inventive method flow chart, comprise step 401, to exchanging the striking power supply raising frequency that boosts for the first time.Step 402 is to described interchange striking power supply through the raising frequency that boosts for the first time raising frequency that boosts for the second time.Step 403 when main AC power is loaded on voltaic arc generating device, also loads on described voltaic arc generating device with above-mentioned interchange striking power supply through twice raising frequency that boosts.Step 404, during due to the zero passage phenomenon of described main AC power breath arc, described voltaic arc generating device makes described voltaic arc generating device produce electric arc still by the interchange striking Power supply of the raising frequency that boosts through two-stage when described voltaic arc generating device.
As preferred embodiment, described first raising frequency that boosts is processed and to be comprised, the first transformer is used for improving the output voltage of described interchange striking power supply; The first oscillating circuit by described the first transformer time limit and the first Capacitance parallel connection consist of is used for improving described interchange striking power supply output frequency;
Described second raising frequency that boosts is processed and to be comprised, the second transformer is used for improving again described through the first output voltage that boosts the interchange striking power supply that raising frequency processed; The second oscillating circuit that is consisted of by described the second transformer time limit and the second Capacitance parallel connection, described through the first interchange striking power supply output frequency that raising frequency processed that boosts for improving again.
As preferred embodiment, the described first raising frequency circuit that boosts also comprises tungsten electrode, is parallel to the inferior limit of described the first transformer, is used for discharging the electric energy of described the first oscillating circuit.
As preferred embodiment, described main AC power and described the second Capacitance parallel connection provide the main alternating voltage that produces electric arc to described voltaic arc generating device.
As preferred embodiment, described interchange striking power acquisition is connected with AC power with wye connection, and described main AC power adopts wye connection to be connected with AC power;
Perhaps described interchange striking power acquisition is connected with AC power with the triangular form connection, and described main AC power adopts the triangular form connection to be connected with AC power.
As preferred embodiment, the interchange striking electric power output voltage of the star-like connection method of described employing is 220V, and frequency is 50Hz, and adopting the main AC power output voltage of star-like connection method is 220V, and frequency is 50Hz;
The interchange striking electric power output voltage of described employing triangular form connection method is 380V, and frequency is 50Hz, and adopting the main AC power output voltage of star-like connection method is 380V, and frequency is 50Hz.
As preferred embodiment, the power output of described interchange striking power supply is much smaller than the power output of described main AC power.
As preferred embodiment, the step of described twice raising frequency that boosts can be reduced to the step of the raising frequency that once boosts.
As preferred embodiment, described interchange striking power supply and main AC power all can be the three phase supply mode.
Has mobile gas between the sparking electrode of wherein said voltaic arc generating device, generate in isoionic embodiment at voltaic arc generating device, this voltaic arc generating device is due to generation electric arc that can be continuous, so the gas that flows between electrode is consisted of the plasma of continuous tubulose by abundant ionization.
Wherein, it is AC plasma ejecting gun in 200810116024.8 patent applications that AC plasma ejecting gun as herein described can adopt application number, perhaps similar devices.
Beneficial effect of the present invention is, AC plasma uninterrupted arc method of supplying power to of the present invention and device no longer are subject to the impact of AC power zero passage phenomenon when using alternating current, can allow the continual generation electric arc of equipment, in order to producing plasma, and enhance productivity.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above is only the specific embodiment of the present invention; the protection range that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an AC uninterrupted arc electric supply installation, is characterized in that this device comprises, exchanges the striking power supply, the raising frequency circuit that boosts, main AC power, voltaic arc generating device;
Described main AC power to described voltaic arc generating device being provided for producing the voltage of electric arc,
The described raising frequency circuit that boosts comprises the two-stage raising frequency circuit that boosts, the first order raising frequency circuit that boosts is increased to the first magnitude of voltage with the output voltage of described interchange striking power supply, and with frequency upgrading to the first frequency value, the second level raising frequency circuit that boosts is increased to the second voltage value with described through the boost output voltage of the interchange striking power supply after the raising frequency processing of circuit of the first order, and with frequency upgrading to the second frequency value
The described first order raising frequency circuit that boosts comprises, the first transformer is used for improving the output voltage of described interchange striking power supply; The first oscillating circuit by described the first transformer time limit and the first Capacitance parallel connection consist of is used for improving described interchange striking power supply output frequency,
The described second level raising frequency circuit that boosts comprises, the second transformer is used for improving again described through the boost output voltage of the interchange striking power supply that the raising frequency processing of circuit crosses of the first order; By described the second transformer time limit and the second oscillating circuit that the second Capacitance parallel connection consists of, be used for improving again the described first order interchange striking power supply output frequency that the raising frequency processing of circuit crosses that boosts that passes through,
The described first order raising frequency circuit that boosts also comprises tungsten electrode, is parallel to the inferior limit of described the first transformer, is used for discharging the electric energy of described the first oscillating circuit,
The output of described interchange striking power supply is boosted through the described raising frequency circuit that boosts after raising frequency, all the time load on described voltaic arc generating device, be used for the igniting of described voltaic arc generating device, and when the zero passage phenomenon appearred in described main AC power, described voltaic arc generating device continued to power to produce electric arc by the output of the interchange striking power supply of described boosted raising frequency;
Described interchange striking power acquisition triangular form connection, described main AC power adopts the triangular form connection.
2. a kind of AC uninterrupted arc electric supply installation according to claim 1, is characterized in that, the interchange striking electric power output voltage of described employing triangular form connection method is 380V, and frequency is 50Hz.
3. a kind of AC uninterrupted arc electric supply installation according to claim 1, is characterized in that, the power output of described interchange striking power supply is much smaller than the power output of described main AC power.
4. a kind of AC uninterrupted arc electric supply installation according to claim 1, is characterized in that, has mobile gas between the sparking electrode of described voltaic arc generating device.
5. an AC uninterrupted arc method of supplying power to, is characterized in that the method comprises, the output that exchanges the striking power supply raising frequency that boosts is processed,
The described raising frequency that boosts is processed and to be comprised that the two-stage raising frequency that boosts processes, and the first order output voltage that raising frequency processes described interchange striking power supply that boosts is increased to the first magnitude of voltage, and with frequency upgrading to the first frequency value; The second level raising frequency that boosts is processed and to be increased to the second voltage value with described through the boost output voltage of the interchange striking power supply of raising frequency after processing of the first order, and with frequency upgrading to the second frequency value,
The described first order raising frequency that boosts is processed and to be comprised, the first transformer is used for improving the output voltage of described interchange striking power supply; The first oscillating circuit by described the first transformer time limit and the first Capacitance parallel connection consist of is used for improving described interchange striking power supply output frequency,
The described second level raising frequency that boosts is processed and to be comprised, the second transformer is used for improving again described through the boost output voltage of the interchange striking power supply that raising frequency processed of the first order; By described the second transformer time limit and the second oscillating circuit that the second Capacitance parallel connection consists of, be used for improving again the described first order interchange striking power supply output frequency that raising frequency processed that boosts that passes through,
The first order raising frequency circuit that boosts also comprises tungsten electrode, is parallel to the inferior limit of described the first transformer, is used for discharging the electric energy of described the first oscillating circuit,
Described main AC power and described the second Capacitance parallel connection provide the main alternating voltage that produces electric arc to described voltaic arc generating device,
The output that exchanges the striking power supply that raising frequency processed of boosting of main AC power and described process is all loaded on voltaic arc generating device, described interchange striking power supply lights a fire to produce electric arc to described voltaic arc generating device, when the zero passage phenomenon appearred in described main AC power, described voltaic arc generating device continued to power to produce electric arc by the output of the interchange striking power supply of described boosted raising frequency;
Described interchange striking power acquisition triangular form connection, described main AC power adopts the triangular form connection.
6. a kind of AC uninterrupted arc method of supplying power to according to claim 5, is characterized in that, the interchange striking electric power output voltage of described employing triangular form connection method is 380V, and frequency is 50Hz.
7. a kind of AC uninterrupted arc method of supplying power to according to claim 5, is characterized in that, the power output of described interchange striking power supply is much smaller than the power output of described main AC power.
8. a kind of AC uninterrupted arc method of supplying power to according to claim 5, is characterized in that, has mobile gas between the sparking electrode of described voltaic arc generating device.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810117133 CN101636034B (en) | 2008-07-24 | 2008-07-24 | Device and method for AC uninterrupted arc power supply |
| PCT/CN2008/073545 WO2009092234A1 (en) | 2007-12-27 | 2008-12-17 | An ac plasma ejection gun and its power supply method and a pulverized coal burner |
| US12/824,953 US8783196B2 (en) | 2007-12-27 | 2010-06-28 | AC plasma ejection gun, the method for supplying power to it and pulverized coal burner |
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| CN 200810117133 CN101636034B (en) | 2008-07-24 | 2008-07-24 | Device and method for AC uninterrupted arc power supply |
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| CN101636034A CN101636034A (en) | 2010-01-27 |
| CN101636034B true CN101636034B (en) | 2013-06-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106169886B (en) * | 2016-08-30 | 2018-05-18 | 山东华博电气有限公司 | The two level booster circuit of high step-up ratio |
| CN211476002U (en) * | 2019-11-06 | 2020-09-11 | 深圳驭龙电焰科技有限公司 | Ignition device and electric flame stove |
| CN114070119B (en) * | 2022-01-13 | 2022-03-25 | 成都通用整流电器研究所 | Space-based aviation aircraft air orbit-transfer push-emission plasma power supply |
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| CN2348962Y (en) * | 1998-09-24 | 1999-11-17 | 哈尔滨工业大学 | Power source for ac plasma arc welding equipment |
| CN101216183A (en) * | 2007-12-27 | 2008-07-09 | 北京光耀环境工程有限公司 | Alternating-current plasma gun and its fire-lighting device |
| CN201234398Y (en) * | 2008-08-01 | 2009-05-06 | 北京光耀电力设备有限公司 | Uninterrupted AC plasma arc electricity supply apparatus |
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| CN2348962Y (en) * | 1998-09-24 | 1999-11-17 | 哈尔滨工业大学 | Power source for ac plasma arc welding equipment |
| CN101216183A (en) * | 2007-12-27 | 2008-07-09 | 北京光耀环境工程有限公司 | Alternating-current plasma gun and its fire-lighting device |
| CN201234398Y (en) * | 2008-08-01 | 2009-05-06 | 北京光耀电力设备有限公司 | Uninterrupted AC plasma arc electricity supply apparatus |
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