CN104191067A - Underwater arc double-arc stable switch control system - Google Patents
Underwater arc double-arc stable switch control system Download PDFInfo
- Publication number
- CN104191067A CN104191067A CN201410391657.5A CN201410391657A CN104191067A CN 104191067 A CN104191067 A CN 104191067A CN 201410391657 A CN201410391657 A CN 201410391657A CN 104191067 A CN104191067 A CN 104191067A
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- electrode
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- wire
- control system
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 238000010891 electric arc Methods 0.000 claims description 27
- 238000012423 maintenance Methods 0.000 claims description 24
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
- B23K9/073—Stabilising the arc
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses an underwater arc double-arc stable switch control system. The input pole of a harmonic processing unit is connected with an industrial power grid through a circuit breaker K and a wire, the output pole of the harmonic processing unit is connected with the input pole of a rectification conversion unit through a wire, the output pole of the rectification conversion unit is connected with the input pole of a pilot arc unit, a first electrode and a second electrode through wires, the output pole of the pilot arc unit is connected with a third electrode through a wire, the other end of the pilot arc unit is connected with the second electrode through a wire, and a power control unit is connected with the rectification conversion unit, the pilot arc unit, the first electrode and a servo motor through wires respectively. Arc blowout is not needed in the electrode replacement process, the process of repeated arc striking in the intermediate process is omitted, and production efficiency is improved. In the whole arc replacement process, stability of voltages and currents is kept, and stability of the system can be maintained.
Description
Technical field
The invention belongs to submerge arc electrode and change technical field, be specifically related to the two arcs of a kind of submerge arc and stablize handover control system.
Background technology
Submerge arc technology adopts the solubilization graphite electrode of finite length at present, and in the time that this electrode melting is complete, electric arc can extinguish, electric arc need to again ignite in the time changing electrode, due to the existence of water, the electric arc that makes to ignite is under water more difficult, need to consume more operation.In addition, the electric arc that again ignites, can cause production efficiency low, makes the available gas composition of gas processed decline simultaneously.
Summary of the invention
The present invention provides the two arcs of a kind of submerge arc to stablize handover control system for overcoming the deficiencies in the prior art, makes this device in the time changing electrode, and electric arc can burn continually and steadily, has improved production efficiency.
Technical scheme of the present invention is: the two arcs of a kind of submerge arc are stablized handover control system, it is characterized in that comprising harmonic management unit, rectifying conversion unit, arc maintenance unit, power control unit, the first electrode, the second electrode, third electrode and servomotor, wherein the input utmost point of harmonic management unit is connected with wire by breaker K with industrial electrical network, the output stage of harmonic management unit is extremely connected with the input of rectifying conversion unit by wire, the output stage of rectifying conversion unit is respectively by the input utmost point of wire and arc maintenance unit, the first electrode is connected with the second electrode, the output stage of arc maintenance unit is connected with third electrode by wire, the other end of arc maintenance unit is connected with the second electrode by wire, space between described the first electrode and the second electrode forms the first electric arc, space between third electrode and the second electrode forms the second electric arc, described power control unit is connected with rectifying conversion unit by wire, be respectively used to detect the voltage signal at electric arc two ends, by the current signal and the size of controlling rectifying conversion unit output current of electrode, power control unit is connected with arc maintenance unit by wire, for controlling the size of arc maintenance unit output current, power control unit is connected with the first electrode by wire, be used for feeding back the first electrode after-flame signal, power control unit is connected with the input of servomotor by wire, the output of servomotor is connected with third electrode by wire.
Wire between harmonic management of the present invention unit and industrial electrical network is three or four, and three comprise two power lines and neutral ground line, and four comprise three power lines and neutral ground line.
Harmonic management of the present invention unit is made up of RC rc absorber and LCR filter network.
The bridge rectifier that rectifying conversion of the present invention unit is made up of high-power switching transistor form or by do not control rectifying bridge type circuit, inverter circuit and again rectification circuit form.
Arc maintenance of the present invention unit is made up of on-off circuit and LC oscillating circuit.
Power control unit of the present invention comprises microprocessor, testing circuit and PWM module, wherein testing circuit is for detection of the voltage signal at electric arc two ends, by current signal and the electrode after-flame signal of electrode, then voltage signal, current signal and electrode after-flame signal are sent in microprocessor, generate respectively the PWM that changes electrode motor for controlling drive signal 1, for driving the transistorized PWM of arc maintenance unit switch to drive signal 2, thereby the stable replacing of control electrode.
Described PWM module also comprises that the PWM of the switching transistor of the electric arc place circuit unit that driving will replace drives signal 3, described PWM driving signal 2 drives the dutycycle of signal 3 to present the feature oppositely changing in proportion with described PWM, thereby keeps total arc current stable during being controlled at replacing electrode.
The present invention compared with prior art has following beneficial effect: (1) need to, changing blow-out when electrode, not cancel the pilot process operation of striking again simultaneously, has improved production efficiency; (2) changing in the whole process of electric arc, maintain the stable of voltage and current, be conducive to the stability of maintenance system.
Brief description of the drawings
Fig. 1 is the general frame that the two arcs of submerge arc of the present invention are stablized handover control system, and Fig. 2 is the control flow chart that the two arcs of submerge arc of the present invention are stablized handover control system.
Drawing explanation: 1, harmonic management unit, 2, rectifying conversion unit, 3, arc maintenance unit, 4, power control unit, 5, the first electrode, 6, the second electrode, 7, third electrode, 8, servomotor.
Detailed description of the invention
The detailed description of the invention of form by the following examples, foregoing of the present invention is described in further details, but this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology realizing based on foregoing of the present invention all belong to scope of the present invention.
The two arcs of a kind of submerge arc are stablized handover control system, comprise harmonic management unit 1, rectifying conversion unit 2, arc maintenance unit 3, power control unit 4, the first electrode 5, the second electrode 6, third electrode 7 and servomotor 8, wherein the input utmost point of harmonic management unit 1 is connected with line L1 by breaker K with industrial electrical network, the output stage of harmonic management unit 1 is extremely connected with the input of rectifying conversion unit 2 by line L2, in the time that described industrial electrical network is alternating current 220V, described line L1 and line L2 are respectively three, comprise separately two power lines and neutral ground line, when described industrial electrical network is while exchanging 380V, described line L1 and line L2 are respectively four, respectively do for oneself three power lines and neutral ground line, the load of described submerge arc power control system is depended in the selection of industrial electrical network, the output stage of rectifying conversion unit 2 is connected by line L3 with arc maintenance unit 3 respectively, be connected by line L4 with the first electrode 5, be connected by line L5 with the second electrode 6, the other end of arc maintenance unit 3 is connected with line L5 by line L7, space between described the first electrode 5 and the second electrode 6 forms the first electric arc, space between third electrode 7 and the second electrode 6 forms the second electric arc, described power control unit 4 is by line L8, line L9 is connected with rectifying conversion unit 2 with line L10, be respectively used to detect the voltage signal at electric arc two ends, by the current signal and the size of controlling rectifying conversion unit 2 output currents of electrode, power control unit 4 is connected with arc maintenance unit 3 by line L11, for controlling the size of arc maintenance unit 3 output currents, power control unit 4 is connected with the first electrode 5 by line L12, be used for feeding back the first electrode 5 after-flame signals, power control unit 4 is connected with the input of servomotor 8 by line L13, the output of servomotor 8 is connected with third electrode 7 by line L14, change the electrode moment at needs, arc maintenance unit 3 adopts the mode of high-voltage pulse, direct current is put on to third electrode 7 end points, submerge arc ignites, to replace the electric arc that will extinguish, complete not blow-out and change electrode work, power control unit 4 is for detection of changing the electrode moment, send and change electrode instruction the stable electric arc of replacing.
The course of work of the present invention is as follows:
When after breaker K closure, alternating current enters rectifying conversion unit 2 by line L1, harmonic management unit 1 and line L2, alternating current is converted at least direct current of the different voltages of two-way by rectifying conversion unit 2, as the voltage between figure center line L4 and line L5, and the voltage between line L3 and line L5; Voltage between its center line L4 and line L5 puts on the first electrode 5 and the second electrode 6, and space between described the first electrode 5 and the second electrode 6 produces the first electric arc;
In the time that the first electrode 5 after-flame signal saltus steps of holding wire L12 feedback are low level, show that the first electrode 5 will after-flame, power control unit 4 sends driving signal by line L13, by the work of servomotor 8, makes third electrode 7 arrive in the given time precalculated position; Arrive behind precalculated position at third electrode 7, power control unit 4 drives the high power transistor of arc maintenance unit by holding wire L11, adopts the mode of high-voltage pulse, makes to produce electric arc between the space between third electrode 7 and the first electrode 5;
In replacing electrode process, power control unit 4 drives signal 2 and PWM to drive the dutycycle of signal 3 to control to described PWM, makes PWM drive signal 2 dutycycles progressively to reduce to drive signal 3 dutycycles progressively to increase with PWM, and sum of the two is remained unchanged; Along with the electric current of electric arc progressively increases, the electric current of electric arc progressively reduces, when equal the original electric current that passes through electric arc by the electric current of electric arc, by the electric current vanishing of electric arc; By the work of servomotor 8, make third electrode 7 move to the position of the first electrode 5, now third electrode 7 has replaced the first electrode 5 completely, completes the stable work of changing electrode.
Finally it should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (6)
1. the two arcs of submerge arc are stablized handover control system, it is characterized in that comprising harmonic management unit, rectifying conversion unit, arc maintenance unit, power control unit, the first electrode, the second electrode, third electrode and servomotor, wherein the input utmost point of harmonic management unit is connected with wire by breaker K with industrial electrical network, the output stage of harmonic management unit is extremely connected with the input of rectifying conversion unit by wire, the output stage of rectifying conversion unit is respectively by the input utmost point of wire and arc maintenance unit, the first electrode is connected with the second electrode, the output stage of arc maintenance unit is connected with third electrode by wire, the other end of arc maintenance unit is connected with the second electrode by wire, space between described the first electrode and the second electrode forms the first electric arc, space between third electrode and the second electrode forms the second electric arc, described power control unit is connected with rectifying conversion unit by wire, be respectively used to detect the voltage signal at electric arc two ends, by the current signal and the size of controlling rectifying conversion unit output current of electrode, power control unit is connected with arc maintenance unit by wire, for controlling the size of arc maintenance unit output current, power control unit is connected with the first electrode by wire, be used for feeding back the first electrode after-flame signal, power control unit is connected with the input of servomotor by wire, the output of servomotor is connected with third electrode by wire.
2. the two arcs of submerge arc according to claim 1 are stablized handover control system, it is characterized in that: the wire between described harmonic management unit and industrial electrical network is three or four, three comprise two power lines and neutral ground line, and four comprise three power lines and neutral ground line.
3. the two arcs of submerge arc according to claim 1 are stablized handover control system, it is characterized in that: described harmonic management unit is made up of RC rc absorber and LCR filter network.
4. the two arcs of submerge arc according to claim 1 are stablized handover control system, it is characterized in that: the bridge rectifier that described rectifying conversion unit is made up of high-power switching transistor form or by do not control rectifying bridge type circuit, inverter circuit and again rectification circuit form.
5. the two arcs of submerge arc according to claim 1 are stablized handover control system, it is characterized in that: described arc maintenance unit is made up of on-off circuit and LC oscillating circuit.
6. the two arcs of submerge arc according to claim 1 are stablized handover control system, it is characterized in that: described power control unit comprises microprocessor, testing circuit and PWM module, wherein testing circuit is for detection of the voltage signal at electric arc two ends, by current signal and the electrode after-flame signal of electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410391657.5A CN104191067B (en) | 2014-08-12 | 2014-08-12 | The two arc of a kind of submerge arc stablizes handover control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410391657.5A CN104191067B (en) | 2014-08-12 | 2014-08-12 | The two arc of a kind of submerge arc stablizes handover control system |
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| Publication Number | Publication Date |
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| CN104191067A true CN104191067A (en) | 2014-12-10 |
| CN104191067B CN104191067B (en) | 2015-12-02 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001205431A (en) * | 2000-01-17 | 2001-07-31 | Hitachi Ltd | Underwater pulsed arc welding device |
| CN200957489Y (en) * | 2006-09-11 | 2007-10-10 | 江苏科技大学 | AC square-wave arc stabilizer |
| JP2011082478A (en) * | 2009-09-10 | 2011-04-21 | Koyo Giken:Kk | Welding transformer |
| CN201815774U (en) * | 2010-04-16 | 2011-05-04 | 深圳市佳士科技股份有限公司 | Arc stabilizing circuit of alternating-current square-wave welding power source |
| CN202079341U (en) * | 2011-04-07 | 2011-12-21 | 上海威特力焊接设备制造股份有限公司 | Arc-stabilizing device of alternate-current argon arc welder |
| CN103203520A (en) * | 2012-10-16 | 2013-07-17 | 华东交通大学 | Arc stabilizer for underwater wet welding |
| CN204053198U (en) * | 2014-08-12 | 2014-12-31 | 河南机电高等专科学校 | The two arc of a kind of submerge arc stablizes handover control system |
-
2014
- 2014-08-12 CN CN201410391657.5A patent/CN104191067B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001205431A (en) * | 2000-01-17 | 2001-07-31 | Hitachi Ltd | Underwater pulsed arc welding device |
| CN200957489Y (en) * | 2006-09-11 | 2007-10-10 | 江苏科技大学 | AC square-wave arc stabilizer |
| JP2011082478A (en) * | 2009-09-10 | 2011-04-21 | Koyo Giken:Kk | Welding transformer |
| CN201815774U (en) * | 2010-04-16 | 2011-05-04 | 深圳市佳士科技股份有限公司 | Arc stabilizing circuit of alternating-current square-wave welding power source |
| CN202079341U (en) * | 2011-04-07 | 2011-12-21 | 上海威特力焊接设备制造股份有限公司 | Arc-stabilizing device of alternate-current argon arc welder |
| CN103203520A (en) * | 2012-10-16 | 2013-07-17 | 华东交通大学 | Arc stabilizer for underwater wet welding |
| CN204053198U (en) * | 2014-08-12 | 2014-12-31 | 河南机电高等专科学校 | The two arc of a kind of submerge arc stablizes handover control system |
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|---|---|
| CN104191067B (en) | 2015-12-02 |
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Effective date of registration: 20200909 Address after: 453000 torch Park V (J-L) (10-11), No. 1789 Xinfei Avenue, Xinxiang City, Henan Province Patentee after: Henan wanchuang Technology Service Co.,Ltd. Address before: 453003 No. 699 Pingyuan Road, Henan, Xinxiang Patentee before: HENAN MECHANICAL AND ELECTRICAL ENGINEERING College |
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Effective date of registration: 20231207 Address after: 264300 Shidao Shixiang Road, Rongcheng City, Weihai City, Shandong Province Patentee after: SHANDONG MARINE ELECTRIC EQUIPMENT CO.,LTD. Address before: 453000 torch Park Research V (J-L) (10-11), high tech Zone, 1789 Xinfei Avenue, Xinxiang City, Henan Province Patentee before: Henan wanchuang Technology Service Co.,Ltd. |
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