CN201726555U - Special arc furnace power supply system for water fuel dissociation - Google Patents
Special arc furnace power supply system for water fuel dissociation Download PDFInfo
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- CN201726555U CN201726555U CN2010202882174U CN201020288217U CN201726555U CN 201726555 U CN201726555 U CN 201726555U CN 2010202882174 U CN2010202882174 U CN 2010202882174U CN 201020288217 U CN201020288217 U CN 201020288217U CN 201726555 U CN201726555 U CN 201726555U
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Abstract
The utility model discloses a special arc furnace power supply system for water fuel dissociation, which comprises a three-phase controllable full-wave rectification main circuit connected between the positive electrode and the negative electrode of the special arc furnace for water fuel dissociation in parallel and a control loop system connected with the three-phase controllable full-wave rectification main circuit; the control loop system detects the working current of the system and outputs the control signal to a dimensional arc working power supply and a high-frequency arc striking power supply connected at the output end of the control loop system; the dimensional arc working power supply is connected to the output end of the three-phase controllable full-wave rectification main circuit in parallel, the output end of the dimensional arc working power supply is connected with a high-frequency by-pass capacitor in parallel, a high-frequency arc striking power supply is connected with the output end of the dimensional arc working power supply in parallel after connected with the capacitor supplying a high-frequency channel in series, the capacitor is connected with the positive electrode of the special arc furnace for water fuel dissociation, and the high-frequency by-pass capacitor and the capacitor are indirectly connected with a high-frequency choke reactor. The utility model has simple structure, reasonable design, quick arc starting response, good arc stabilizing performance, high gas production, low power consumption and convenient generalization and use.
Description
Technical field
The utility model belongs to the exploitation and the preparing technical field of new forms of energy, especially relates to the special-purpose arc furnace electric power system of a kind of water fuel-pyrolysis.
Background technology
Water fuel is a kind of novel clean energy resource, if can prepare efficiently, the energy, the weldering cutting gas energy, the generating gas that can be widely used in automobile engine replace the energy, the household heater burning gases energy, daily fuel energy etc., and the development and utilization of water fuel is significant for solving world today's serious environmental pollution problem and the exhausted problem of resource (particularly fossil energy).
But, the at present domestic company that does not also have really can prepare production water fuel, the development and utilization of water fuel also is in development, though being arranged, company tentatively made the special-purpose arc furnace of water fuel-pyrolysis abroad, be used to produce water fuel, but but have the problem that gas production is not high, consumption of electrode is big, power consumption is high, be in half standstill state, tracing it to its cause, mainly is because unreasonable, the imperfection of electric power system design of the special-purpose arc furnace of water fuel-pyrolysis.Because the special-purpose arc furnace of existing water fuel-pyrolysis adopts the controlled bridge full-wave rectifier power supply power supply of three-phase thyristor, owing to be subjected to the restriction of electrode per surface area maximum current, can not be in bigger electrode gap reliably working, cause the efficient of power supply extremely low, most of energy consumption has only few part to be used for cracking, and can not play the effect of the starting the arc, stabilising arc well on the scaling loss of electrode, not only can not prepare water outlet fuel efficiently, also cause the severe energy waste problem.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, provides a kind of water fuel-pyrolysis special-purpose arc furnace electric power system.It is simple in structure, reasonable in design, and starting the arc response is fast, the stabilising arc performance is good, the gas production height, and power consumption is low.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the special-purpose arc furnace electric power system of a kind of water fuel-pyrolysis, comprise the controlled full-wave rectification main circuit of three-phase between the negative electrode of the positive electrode that is connected in parallel on the special-purpose arc furnace of water fuel-pyrolysis and the special-purpose arc furnace of water fuel-pyrolysis, it is characterized in that: also comprise the control loop system of joining with the controlled full-wave rectification main circuit of three-phase, described control loop system detects the current signal of the controlled full-wave rectification main circuit output of three-phase and exports control signal after treatment and give arc maintenance working power and the high-frequency arc strike power supply that is connected on control loop system output; Described arc maintenance working power is connected in parallel on the output of the controlled full-wave rectification main circuit of three-phase, the output of described arc maintenance working power is parallel with high-frequency bypass capacitor C1, described high-frequency arc strike power supply and the output that is connected in parallel on the arc maintenance working power after the capacitor C2 that high frequency channel is provided connects, the positive electrode of the special-purpose arc furnace of described capacitor C2 and water fuel-pyrolysis joins, and is connected to high frequency choke reactor L between described high-frequency bypass capacitor C1 and described capacitor C2.
Rectification main circuit voltage sample amplifying circuit and rectification main circuit current sample amplifying circuit that the controlled full-wave rectification main circuit of described three-phase comprises rectification main circuit controlled rectification output circuit and is connected on rectification main circuit controlled rectification output circuit output also comprise the rectification main circuit signal acquisition processing circuit that input joins with control loop system, rectification main circuit voltage sample amplifying circuit and rectification main circuit current sample amplifying circuit respectively; Described rectification main circuit signal acquisition processing circuit receives the control signal of control loop system output, receive that rectification main circuit voltage sample amplifying circuit is sampled and voltage signal processed and rectification main circuit current sample amplifying circuit sample and handle after current signal this three kinds of signals that also will receive export to the rectification main circuit controlled rectification output circuit that is connected on rectification main circuit signal acquisition processing circuit output after handling, control rectification main circuit controlled rectification output circuit output dc voltage signal.
The direct voltage adjustable extent of the controlled full-wave rectification main circuit output of described three-phase is 30V-120V.
Described arc maintenance working power comprises arc maintenance power supply process control input circuit, arc maintenance power supply controlled rectification output circuit and is connected on the arc maintenance pulse distributor of arc maintenance power supply controlled rectification output circuit output; The input termination control loop system of described arc maintenance power supply process control input circuit receives the control signal of control loop system output and exports to arc maintenance power supply controlled rectification output circuit and the arc maintenance pulse distributor that is connected on arc maintenance power supply process control input circuit output; The output termination arc maintenance supply voltage sampling amplifying circuit of described arc maintenance pulse distributor and arc maintenance source current sampling amplifying circuit; The output of described arc maintenance supply voltage sampling amplifying circuit and arc maintenance source current sampling amplifying circuit all connects the output of the controlled full-wave rectification main circuit of three-phase; Described arc maintenance pulse distributor receive the output of arc maintenance power supply process control input circuit control signal, receive the output of arc maintenance power supply controlled rectification output circuit rectified signal, receive that arc maintenance supply voltage sampling amplifying circuit is sampled and voltage signal processed and arc maintenance source current sampling amplifying circuit sample and handle after current signal and this four kinds of signals that will receive export the pulsed dc voltage signal after handling and be parallel on the d. c. voltage signal that rectification main circuit 1 exports.
The pulsed dc voltage adjustable extent of safeguarding of described arc maintenance working power output is 150V-300V.
The high-frequency spark oscillator that described high-frequency arc strike power supply joins by the booster power transformer, with the booster power transformer and constitute with high-frequency output transformer that the high-frequency spark oscillator joins, described booster power transformer and control loop system join, and two outputs of described high-frequency output transformer join with the negative electrode and the capacitor C2 of the special-purpose arc furnace of water fuel-pyrolysis respectively.
Described booster power transformer is for being elevated to the 220V alternating voltage in the transformer of 2500V alternating voltage.
The operating frequency of described high-frequency output transformer is 3KHZ, and rated output voltage is 10000V.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design.The utility model proposes at the special-purpose arc furnace gas production of existing water fuel-pyrolysis problem not high, that consumption of electrode is big, power consumption is high, electric power system to the special-purpose arc furnace of existing water fuel-pyrolysis is improved, arc maintenance working power and high-frequency arc strike power supply between rectification main circuit and electrode, have been added again, simple in structure, reasonable in design.
2, starting the arc response is fast.The introducing of the utility model medium-high frequency striking power supply makes original contacting ignition arc change into present noncontact striking, starting the arc response is fast, and make power supply avoid the impact of big electric current, adopt the high-frequency and high-voltage striking also can effectively improve the reliability that arc current ignites simultaneously.
3, the stabilising arc performance is good.The utility model is when adopting the controlled bridge full-wave rectifier power supply of three-phase thyristor, increase the pilot arc power supply that is used for electric arc continuous operation condition by the sub-high pressure power supply of output at interval again, has good stabilising arc performance, and because it is operated in pulse condition, pulse duration is narrower, can not cause the scaling loss of electrode, the effective rate of utilization of power supply is improved.
4, gas production height, power consumption is low, and result of use is good.The utility model has improved the service efficiency of the special-purpose arc furnace power supply of water fuel-pyrolysis effectively, most of energy can both be used for splitting water and produce water fuel, can prepare water outlet fuel efficiently, is to advance effective measure for energy saving, result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structured flowchart of the controlled full-wave rectification main circuit of the utility model three-phase.
Fig. 3 is the structured flowchart of the utility model arc maintenance working power.
Fig. 4 is the structured flowchart of the utility model high-frequency arc strike power supply.
Description of reference numerals:
The controlled full-wave rectification of the 1-water fuel-pyrolysis special-purpose electric 3-three-phase of special-purpose electric 2-water fuel-pyrolysis
The positive electrode of arc stove; The negative electrode of arc stove; Main circuit;
The controlled 3-2-rectification main circuit of 3-1-rectification main circuit voltage 3-3-rectification main circuit electric current
Rectifying output circuit; The sampling amplifying circuit; The sampling amplifying circuit;
3-4-rectification main circuit signal 4-control loop system; 5-arc maintenance working power;
The acquisition process circuit;
5-1-arc maintenance power supply is crossed the controlled whole 5-3-arc maintenance pulse distribution of program control 5-2-arc maintenance power supply
The system input circuit; The stream output circuit; The road;
5-4-arc maintenance supply voltage is adopted 5-5-arc maintenance source current and is adopted 6-high-frequency arc strike power supply;
The sample amplifying circuit; The sample amplifying circuit;
6-1-booster power transformer; 6-2-high-frequency spark oscillator; The 6-3-high-frequency output transformer.
Embodiment
As shown in Figure 1, the utility model comprises the controlled full-wave rectification main circuit 3 of three-phase of 2 of the negative electrodes of the positive electrode 1 that is connected in parallel on the special-purpose arc furnace of water fuel-pyrolysis and the special-purpose arc furnace of water fuel-pyrolysis, also comprise the control loop system 4 of joining with the controlled full-wave rectification main circuit 3 of three-phase, described control loop system 4 detects the current signal of controlled full-wave rectification main circuit 3 outputs of three-phases and exports control signal after treatment and give arc maintenance working power 5 and the high-frequency arc strike power supply 6 that is connected on control loop system 4 outputs; Described arc maintenance working power 5 is connected in parallel on the output of the controlled full-wave rectification main circuit 3 of three-phase, the output of described arc maintenance working power 5 is parallel with high-frequency bypass capacitor C1, described high-frequency arc strike power supply 6 and the output that is connected in parallel on arc maintenance working power 5 after the capacitor C2 that high frequency channel is provided connects, the positive electrode 1 of the special-purpose arc furnace of described capacitor C2 and water fuel-pyrolysis joins, and is connected to high frequency choke reactor L between described high-frequency bypass capacitor C1 and described capacitor C2.
In conjunction with Fig. 2, in the present embodiment, rectification main circuit voltage sample amplifying circuit 3-2 and rectification main circuit current sample amplifying circuit 3-3 that the controlled full-wave rectification main circuit 3 of described three-phase comprises rectification main circuit controlled rectification output circuit 3-1 and is connected on rectification main circuit controlled rectification output circuit 3-1 output also comprise the rectification main circuit signal acquisition processing circuit 3-4 that input joins with control loop system 4, rectification main circuit voltage sample amplifying circuit 3-2 and rectification main circuit current sample amplifying circuit 3-3 respectively; Described rectification main circuit signal acquisition processing circuit 3-4 receives the control signal of control loop system 4 outputs, receive that rectification main circuit voltage sample amplifying circuit 3-2 samples and voltage signal processed and rectification main circuit current sample amplifying circuit 3-3 sample and handle after current signal this three kinds of signals that also will receive export to the rectification main circuit controlled rectification output circuit 3-1 that is connected on rectification main circuit signal acquisition processing circuit 3-4 output after handling, control rectification main circuit controlled rectification output circuit 3-1 output dc voltage signal.The direct voltage adjustable extent of controlled full-wave rectification main circuit 3 outputs of described three-phase is 30V-120V.
In conjunction with Fig. 3, in the present embodiment, described arc maintenance working power 5 comprises arc maintenance power supply process control input circuit 5-1, arc maintenance power supply controlled rectification output circuit 5-2 and is connected on the arc maintenance pulse distributor 5-3 of arc maintenance power supply controlled rectification output circuit 5-2 output; The input termination control loop system 4 of described arc maintenance power supply process control input circuit 5-1 receives the control signal of control loop system 4 outputs and exports to arc maintenance power supply controlled rectification output circuit 5-2 and the arc maintenance pulse distributor 5-3 that is connected on arc maintenance power supply process control input circuit 5-1 output; The output termination arc maintenance supply voltage sampling amplifying circuit 5-4 of described arc maintenance pulse distributor 5-3 and arc maintenance source current sampling amplifying circuit 5-5; The output of described arc maintenance supply voltage sampling amplifying circuit 5-4 and arc maintenance source current sampling amplifying circuit 5-5 all connects the output of the controlled full-wave rectification main circuit 3 of three-phase; Described arc maintenance pulse distributor 5-3 receives the control signal of arc maintenance power supply process control input circuit 5-1 output, receive the rectified signal of arc maintenance power supply controlled rectification output circuit 5-2 output, receive that arc maintenance supply voltage sampling amplifying circuit 5-4 samples and voltage signal processed and arc maintenance source current sampling amplifying circuit 5-5 sample and handle after current signal and this four kinds of signals that will receive export the pulsed dc voltage signal after handling and be parallel on the d. c. voltage signal that rectification main circuit 1 exports.The pulsed dc voltage adjustable extent of safeguarding of described arc maintenance working power 5 outputs is 150V-300V.
In conjunction with Fig. 4, in the present embodiment, the high-frequency spark oscillator 6-2 that described high-frequency arc strike power supply 6 joins by booster power transformer 6-1, with booster power transformer 6-1 and constitute with high-frequency output transformer 6-3 that high-frequency spark oscillator 6-2 joins, described booster power transformer 6-1 and control loop system 4 join, and two outputs of described high-frequency output transformer 6-3 join with the negative electrode 2 and the capacitor C2 of the special-purpose arc furnace of water fuel-pyrolysis respectively.Described booster power transformer 6-1 is for being elevated to the 220V alternating voltage in the transformer of 2500V alternating voltage.The operating frequency of described high-frequency output transformer 6-3 is 3KHZ, and rated output voltage is 10000V.
The course of work of the present utility model is: after the system start-up, rigidly connect when logical at the controlled full-wave rectification main circuit 3 of three-phase, because electric arc is not also set up, the operating current that control loop system 4 detects the special-purpose arc furnace of water fuel-pyrolysis is very little, just send starting the arc control signal immediately and give high-frequency arc strike power supply 6, high-frequency arc strike power supply 6 is started working, and has reached the purpose of the starting the arc; After the starting the arc, rectification main circuit signal acquisition processing circuit 3-4 receives the control signal of control loop system 4 outputs, receive that rectification main circuit voltage sample amplifying circuit 3-2 samples and voltage signal processed and rectification main circuit current sample amplifying circuit 3-3 sample and handle after current signal this three kinds of signals that also will receive export to the rectification main circuit controlled rectification output circuit 3-1 that is connected on rectification main circuit signal acquisition processing circuit 3-4 output after handling, control rectification main circuit controlled rectification output circuit 3-1 output dc voltage signal, the controlled full-wave rectification main circuit 3 of three-phase begins to be the special-purpose arc furnace power supply of water fuel-pyrolysis; Control loop system 4 detects the electric current of controlled full-wave rectification main circuit 3 outputs of three-phase, it is the continuity of arc furnace operating current, when the operating current that detects arc furnace has downward trend, export control signal immediately and give arc maintenance power supply process control input circuit 5-1, arc maintenance power supply controlled rectification output circuit 5-2 receives the control signal that arc maintenance power supply process control input circuit 5-1 receives and exports, begin to export rectified signal, arc maintenance pulse distributor 5-3 receives the control signal that arc maintenance power supply process control input circuit 5-1 receives and exports, the rectified signal of arc maintenance power supply controlled rectification output circuit 5-2 output, receive the operating current signal of 5-4 collection of arc maintenance supply voltage sampling amplifying circuit and the special-purpose arc furnace of water fuel-pyrolysis after treatment, and receive the operating voltage signal of 5-5 collection of arc maintenance source current sampling amplifying circuit and the special-purpose arc furnace of water fuel-pyrolysis after treatment, these four kinds of signals that receive are carried out after the analyzing and processing output pulsed dc voltage signal and be parallel on the d. c. voltage signal of rectification main circuit 1 output, make the operating current of arc furnace continue to keep continuity, reached the purpose of stabilising arc, and most of energy that electric power system provides can both be used for splitting water and produce water fuel, can prepare water outlet fuel efficiently.
In this electric power system, the effect of capacitor C2 is to provide high frequency channel to high-frequency arc strike power supply 6, make rectifier cell in controlled full-wave rectification main circuit 3 of three-phase and the arc maintenance working power 5 not by the high-frequency arc strike voltage breakdown, the effect of high-frequency bypass capacitor C1 and high frequency choke reactor L is that high frequency and DC parallel power supply are isolated mutually, and it is not exerted an influence mutually.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (8)
1. the special-purpose arc furnace electric power system of a water fuel-pyrolysis, it is characterized in that: comprise controlled full-wave rectification main circuit of three-phase (3) between the negative electrode (2) of the positive electrode (1) that is connected in parallel on the special-purpose arc furnace of water fuel-pyrolysis and the special-purpose arc furnace of water fuel-pyrolysis and the control loop system (4) of joining with the controlled full-wave rectification main circuit of three-phase (3), described control loop system (4) detects the current signal of the controlled full-wave rectification main circuit of three-phase (3) output and exports control signal after treatment to the arc maintenance working power (5) and the high-frequency arc strike power supply (6) that are connected on control loop system (4) output; Described arc maintenance working power (5) is connected in parallel on the output of the controlled full-wave rectification main circuit of three-phase (3), the output of described arc maintenance working power (5) is parallel with high-frequency bypass capacitor C1, described high-frequency arc strike power supply (6) and the output that is connected in parallel on arc maintenance working power (5) after the capacitor C2 that high frequency channel is provided connects, the positive electrode (1) of the special-purpose arc furnace of described capacitor C2 and water fuel-pyrolysis joins, and is connected to high frequency choke reactor L between described high-frequency bypass capacitor C1 and described capacitor C2.
2. according to the special-purpose arc furnace electric power system of the described water fuel-pyrolysis of claim 1, it is characterized in that: rectification main circuit voltage sample amplifying circuit (3-2) and rectification main circuit current sample amplifying circuit (3-3) that the controlled full-wave rectification main circuit of described three-phase (3) comprises rectification main circuit controlled rectification output circuit (3-1) and is connected on rectification main circuit controlled rectification output circuit (3-1) output, also comprise input respectively with control loop system (4), the rectification main circuit signal acquisition processing circuit (3-4) that rectification main circuit voltage sample amplifying circuit (3-2) and rectification main circuit current sample amplifying circuit (3-3) join; Described rectification main circuit signal acquisition processing circuit (3-4) receives the control signal of control loop system (4) output, receive that rectification main circuit voltage sample amplifying circuit (3-2) sample and voltage signal processed and rectification main circuit current sample amplifying circuit (3-3) sample and handle after current signal this three kinds of signals that also will receive export to the rectification main circuit controlled rectification output circuit (3-1) that is connected on rectification main circuit signal acquisition processing circuit (3-4) output after handling, control rectification main circuit controlled rectification output circuit (3-1) output dc voltage signal.
3. according to the special-purpose arc furnace electric power system of the described water fuel-pyrolysis of claim 2, it is characterized in that: the direct voltage adjustable extent of the controlled full-wave rectification main circuit of described three-phase (3) output is 30V-120V.
4. according to the special-purpose arc furnace electric power system of the described water fuel-pyrolysis of claim 1, it is characterized in that: described arc maintenance working power (5) comprises arc maintenance power supply process control input circuit (5-1), arc maintenance power supply controlled rectification output circuit (5-2) and is connected on the arc maintenance pulse distributor (5-3) of arc maintenance power supply controlled rectification output circuit (5-2) output; The input termination control loop system (4) of described arc maintenance power supply process control input circuit (5-1) receives the control signal of control loop system (4) output and exports to arc maintenance power supply controlled rectification output circuit (5-2) and the arc maintenance pulse distributor (5-3) that is connected on arc maintenance power supply process control input circuit (5-1) output; The output termination arc maintenance supply voltage sampling amplifying circuit (5-4) of described arc maintenance pulse distributor (5-3) and arc maintenance source current sampling amplifying circuit (5-5); The output of described arc maintenance supply voltage sampling amplifying circuit (5-4) and arc maintenance source current sampling amplifying circuit (5-5) all connects the output of the controlled full-wave rectification main circuit of three-phase (3); Described arc maintenance pulse distributor (5-3) receives the control signal of arc maintenance power supply process control input circuit (5-1) output, receive the rectified signal of arc maintenance power supply controlled rectification output circuit (5-2) output, receive that arc maintenance supply voltage sampling amplifying circuit (5-4) sample and voltage signal processed and arc maintenance source current sampling amplifying circuit (5-5) sample and handle after current signal this four kinds of signals that also will receive export the pulsed dc voltage signal after handling and be parallel on the d. c. voltage signal that rectification main circuit 1 exports.
5. according to the special-purpose arc furnace electric power system of the described water fuel-pyrolysis of claim 4, it is characterized in that: the pulsed dc voltage adjustable extent of safeguarding of described arc maintenance working power (5) output is 150V-300V.
6. according to the special-purpose arc furnace electric power system of the described water fuel-pyrolysis of claim 1, it is characterized in that: the high-frequency spark oscillator (6-2) that described high-frequency arc strike power supply (6) joins by booster power transformer (6-1), with booster power transformer (6-1) and constitute with high-frequency output transformer (6-3) that high-frequency spark oscillator (6-2) joins, described booster power transformer (6-1) and control loop system (4) join, and two outputs of described high-frequency output transformer (6-3) join with the negative electrode (2) and the capacitor C2 of the special-purpose arc furnace of water fuel-pyrolysis respectively.
7. according to the special-purpose arc furnace electric power system of the described water fuel-pyrolysis of claim 6, it is characterized in that: described booster power transformer (6-1) is for being elevated to the 220V alternating voltage in the transformer of 2500V alternating voltage.
8. according to the special-purpose arc furnace electric power system of the described water fuel-pyrolysis of claim 6, it is characterized in that: the operating frequency of described high-frequency output transformer (6-3) is 3KHZ, and rated output voltage is 10000V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202882174U CN201726555U (en) | 2010-08-09 | 2010-08-09 | Special arc furnace power supply system for water fuel dissociation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202882174U CN201726555U (en) | 2010-08-09 | 2010-08-09 | Special arc furnace power supply system for water fuel dissociation |
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| CN201726555U true CN201726555U (en) | 2011-01-26 |
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| CN2010202882174U Expired - Fee Related CN201726555U (en) | 2010-08-09 | 2010-08-09 | Special arc furnace power supply system for water fuel dissociation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672172A (en) * | 2018-12-13 | 2019-04-23 | 中冶京诚工程技术有限公司 | electric arc furnace power supply device and electric arc furnace power supply method |
| CN112235891A (en) * | 2020-11-03 | 2021-01-15 | 中国航天空气动力技术研究院 | Arc striking circuit and arc striking method for electric arc wind tunnel heater |
| CN113399782A (en) * | 2021-05-31 | 2021-09-17 | 深圳市佳士科技股份有限公司 | Arc striking circuit and electric welding machine |
-
2010
- 2010-08-09 CN CN2010202882174U patent/CN201726555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672172A (en) * | 2018-12-13 | 2019-04-23 | 中冶京诚工程技术有限公司 | electric arc furnace power supply device and electric arc furnace power supply method |
| CN112235891A (en) * | 2020-11-03 | 2021-01-15 | 中国航天空气动力技术研究院 | Arc striking circuit and arc striking method for electric arc wind tunnel heater |
| CN113399782A (en) * | 2021-05-31 | 2021-09-17 | 深圳市佳士科技股份有限公司 | Arc striking circuit and electric welding machine |
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