CN109254178B - Conductive cross arm with electrode arc voltage detection function - Google Patents
Conductive cross arm with electrode arc voltage detection function Download PDFInfo
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- CN109254178B CN109254178B CN201811252566.8A CN201811252566A CN109254178B CN 109254178 B CN109254178 B CN 109254178B CN 201811252566 A CN201811252566 A CN 201811252566A CN 109254178 B CN109254178 B CN 109254178B
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- cross arm
- conductive cross
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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Abstract
The invention discloses a conductive cross arm with an electrode arc voltage detection function, which comprises a conductive cross arm body and a graphite electrode, wherein the graphite electrode is clamped at the front end of the conductive cross arm body through a conductive chuck; the high-temperature-resistant shielding copper cable is buried in the conductive cross arm body, one end of the high-temperature-resistant shielding copper cable is led out through a front voltage collector column arranged at the front end of the conductive cross arm body, the other end of the high-temperature-resistant shielding copper cable is led out through a rear voltage collector column arranged at the rear end of the conductive cross arm body, each phase of the upper part of the conductive clamp is provided with an electrode voltage collector column, and the electrode voltage collector column is connected with the front voltage collector column through a copper bar or a steel strand. The detection line removes the impedance voltage interference of four parts of an outgoing line compensator, a through-wall copper pipe, a water-cooling cable and a conductive cross arm of the transformer, and compared with the conventional technology, the line arrangement form enables the detection position of the electrode arc voltage to be closer to the arc, so that the measured electrode arc working voltage is more accurate, and the result is more real.
Description
Technical Field
The invention belongs to the field of electric arc furnace refining furnaces, and particularly relates to a conductive cross arm with an electrode arc voltage detection function.
Background
When the existing steelmaking electric arc furnace and ladle refining furnace are used for production, the working voltage of an electrode arc must be collected for controlling the input power of the electric furnace, but because the center temperature of the electric furnace is high, the conductive cross arm of the electrode moves up and down frequently in the smelting process, the electrode voltage is difficult to directly collect, the existing electric furnace is provided with a voltage transformer at the outlet position of the low-voltage side of a transformer, and the size of the electrode arc voltage is judged and estimated by collecting the working voltage of the outlet side of the transformer.
The high-current circuit of the metallurgical arc furnace mainly comprises an outgoing line compensator of a transformer, a through-wall copper pipe, a water-cooling cable and a conductive cross arm; when the electric arc furnace works, the impedance voltage of the devices is large in duty ratio, the working voltage fluctuates frequently, the electric arc voltage detection is greatly affected, the dynamic movement of a high-current circuit causes unstable circuit impedance voltage change, the interference on the electrode arc voltage is large, the error is also large, the electric arc voltage in the electric furnace is unbalanced, the response of electrode input power regulation is delayed, and the input power stability of the electric furnace is affected.
Disclosure of Invention
In view of the above, the present invention provides a conductive cross arm with electrode arc voltage detection function to achieve the purpose of accurately collecting electrode voltage.
In order to achieve the above purpose, the present invention provides the following technical solutions: the conductive cross arm with the electrode arc voltage detection function comprises a conductive cross arm body and a graphite electrode, wherein the graphite electrode is clamped at the front end of the conductive cross arm body through a conductive chuck; the high-temperature-resistant shielding copper cable is buried in the conductive cross arm body, one end of the high-temperature-resistant shielding copper cable is led out through a front voltage collector column arranged at the front end of the conductive cross arm body, the other end of the high-temperature-resistant shielding copper cable is led out through a rear voltage collector column arranged at the rear end of the conductive cross arm body, and insulating gaskets are arranged among the front voltage collector column, the rear voltage collector column and the conductive cross arm body; each phase at the upper part of the conductive clamp is provided with an electrode voltage collector column which is connected with a front voltage collector column through a copper bar or a steel strand.
Further, a seamless tube is arranged in the conductive cross arm body, and the high-temperature-resistant shielding copper cable is buried in the seamless tube.
Further, the seamless tube is a stainless steel seamless tube.
Further, the rear voltage collector post is connected with a high-temperature-resistant copper cable.
The invention has the beneficial effects that: the device has realized the direct connection of graphite electrode and voltage transformer through the internal direct high temperature resistant shielding copper cable that sets up of electrically conductive xarm for detection circuitry has avoided the impedance voltage interference of four parts such as the wire outlet compensator of transformer, through-wall copper pipe, water-cooling cable and electrically conductive xarm and has directly detected graphite electrode electric arc operating voltage, compares with conventional art, and this circuit arrangement form makes electrode electric arc voltage detection position be close to electric arc more, so the electrode electric arc operating voltage of measuring is more accurate, and the result is truer.
Each phase at the upper part of the conductive clamp in the structure is provided with an electrode voltage collector column, so that the arc voltage change of the three-phase electrode can be dynamically tracked, and the movement of the graphite electrode can be timely regulated; the method has important guiding significance for guaranteeing the balance degree of the input three-phase power in the furnace and improving the smelting power factor of the electric arc furnace or the refining furnace.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of the structure of the present invention;
wherein: the high-temperature-resistant shielding copper wire comprises a conductive cross arm body-1, a graphite electrode-2, a conductive chuck-3, a high-temperature-resistant shielding copper wire-4, a front voltage wire-collecting column-5, a rear voltage wire-collecting column-6, an electrode voltage wire-collecting column-7, a copper bar-8, a high-temperature-resistant copper wire-9, a voltage transformer-10 and a seamless tube-11.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in the figure, the conductive cross arm with the electrode arc voltage detection function comprises a conductive cross arm body 1 and a graphite electrode 2, wherein the graphite electrode 2 is clamped at the front end of the conductive cross arm body 1 through a conductive chuck 3; the high-temperature-resistant shielding copper cable 4 is buried in the conductive cross arm body 1, one end of the high-temperature-resistant shielding copper cable 4 is led out through a front voltage collector column 5 arranged at the front end of the conductive cross arm body 1, the other end of the high-temperature-resistant shielding copper cable is led out through a rear voltage collector column 6 arranged at the rear end of the conductive cross arm body 1, and insulating gaskets are arranged among the front voltage collector column 5, the rear voltage collector column 6 and the conductive cross arm body 1; each phase at the upper part of the conductive chuck 3 is provided with an electrode voltage collector column 7, and the electrode voltage collector column 7 is connected with the front voltage collector column 5 through a copper bar 8 or a steel strand.
In the structure, the front voltage collector column 5 and the electrode voltage collector column 7 are connected through the front copper bar 8 or the steel strand, so that the maintenance and the replacement are convenient; the rear voltage collector post 6 is connected with a high-temperature-resistant copper cable 9, and a voltage transformer 10 of an electrical acquisition system is led by the high-temperature-resistant copper cable 9 to detect the arc working voltage of the graphite electrode 2 of the arc furnace or the refining furnace.
The device realizes the inspection of the arc working voltage of the graphite electrode 2 by directly arranging the high-temperature-resistant shielding copper cable 4 in the conductive cross arm body 1, and the arrangement mode realizes the direct connection of the graphite electrode 2 and the voltage transformer 10, so that a detection circuit avoids the impedance voltage interference of four parts of an outgoing line compensator, a wall-penetrating copper pipe, a water-cooling cable and the conductive cross arm of the transformer.
Each phase at the upper part of the conductive chuck 3 in the structure is provided with an electrode voltage collector column 7, which can dynamically track the arc voltage change of the three-phase electrode, thereby timely adjusting the movement of the graphite electrode 2; the method has important guiding significance for guaranteeing the balance degree of the input three-phase power in the furnace and improving the smelting power factor of the electric arc furnace or the refining furnace.
As a further improvement of the above scheme, the conductive cross arm body 1 is internally provided with a seamless tube 11, and the high-temperature resistant shielded copper cable 4 is buried in the seamless tube 11. The seamless tube 11 facilitates the installation of the high temperature resistant shielded copper cable 4; the seamless pipe 11 can be made of stainless steel, and has stable material performance and is not easy to rust.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides a conductive cross arm with electrode arc voltage detects function which characterized in that: the conductive cross arm comprises a conductive cross arm body and a graphite electrode, wherein the graphite electrode is clamped at the front end of the conductive cross arm body through a conductive chuck; the high-temperature-resistant shielding copper cable is buried in the conductive cross arm body, one end of the high-temperature-resistant shielding copper cable is led out through a front voltage collector column arranged at the front end of the conductive cross arm body, the other end of the high-temperature-resistant shielding copper cable is led out through a rear voltage collector column arranged at the rear end of the conductive cross arm body, and insulating gaskets are arranged among the front voltage collector column, the rear voltage collector column and the conductive cross arm body; each phase at the upper part of the conductive clamp is provided with an electrode voltage collector column which is connected with a front voltage collector column through a copper bar or a steel strand.
2. The conductive cross arm with electrode arc voltage detection function according to claim 1, wherein: the conductive cross arm body is internally provided with a seamless tube, and the high-temperature resistant shielding copper cable is buried in the seamless tube.
3. The conductive cross arm with electrode arc voltage detection function according to claim 2, wherein: the seamless tube is a stainless steel seamless tube.
4. A conductive cross arm with electrode arc voltage detection function according to any one of claims 1 to 3, characterized in that: the rear voltage collector post is connected with a high-temperature-resistant copper cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811252566.8A CN109254178B (en) | 2018-10-25 | 2018-10-25 | Conductive cross arm with electrode arc voltage detection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811252566.8A CN109254178B (en) | 2018-10-25 | 2018-10-25 | Conductive cross arm with electrode arc voltage detection function |
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| Publication Number | Publication Date |
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| CN109254178A CN109254178A (en) | 2019-01-22 |
| CN109254178B true CN109254178B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811252566.8A Active CN109254178B (en) | 2018-10-25 | 2018-10-25 | Conductive cross arm with electrode arc voltage detection function |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113125868A (en) * | 2021-05-17 | 2021-07-16 | 中冶赛迪工程技术股份有限公司 | Six-phase unbalance detection system of short net of blast furnace slag carbonization titanium extraction electric furnace |
| CN115184679A (en) * | 2022-06-22 | 2022-10-14 | 中冶赛迪工程技术股份有限公司 | Dynamic online detection system and method for high current line impedance of electric arc furnace |
Citations (5)
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| JPH08146046A (en) * | 1994-11-22 | 1996-06-07 | Nippon Telegr & Teleph Corp <Ntt> | Non-contact type voltage probe device |
| CN2757075Y (en) * | 2004-11-15 | 2006-02-08 | 唐山钢铁股份有限公司 | Automatic blowing device for conductive clamp |
| CN203148191U (en) * | 2012-08-30 | 2013-08-21 | 树赢(国际)控股西安装备有限公司 | Low-impedance energy-saving composite conductive transverse arm |
| JP2015042069A (en) * | 2013-08-22 | 2015-03-02 | 株式会社日立製作所 | Voltage detector and switch gear comprising the same |
| CN209117728U (en) * | 2018-10-25 | 2019-07-16 | 中冶赛迪工程技术股份有限公司 | Conductive cross arm with electrode arc voltage detecting function |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL2693223T3 (en) * | 2012-08-03 | 2022-01-10 | Abb Schweiz Ag | Voltage measurement device with an insulating body |
| US9136692B2 (en) * | 2013-06-11 | 2015-09-15 | Electrical Materials Company | Low fault current isolator system |
| ITUB20152674A1 (en) * | 2015-07-30 | 2017-01-30 | Danieli Automation Spa | APPARATUS AND METHOD OF ELECTRIC SUPPLY OF AN ARC ELECTRIC OVEN |
| US10073131B2 (en) * | 2016-03-11 | 2018-09-11 | Electric Power Research Institute, Inc. | Apparatus and method for evaluating non-ceramic insulators with conformal probe |
-
2018
- 2018-10-25 CN CN201811252566.8A patent/CN109254178B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08146046A (en) * | 1994-11-22 | 1996-06-07 | Nippon Telegr & Teleph Corp <Ntt> | Non-contact type voltage probe device |
| CN2757075Y (en) * | 2004-11-15 | 2006-02-08 | 唐山钢铁股份有限公司 | Automatic blowing device for conductive clamp |
| CN203148191U (en) * | 2012-08-30 | 2013-08-21 | 树赢(国际)控股西安装备有限公司 | Low-impedance energy-saving composite conductive transverse arm |
| JP2015042069A (en) * | 2013-08-22 | 2015-03-02 | 株式会社日立製作所 | Voltage detector and switch gear comprising the same |
| CN209117728U (en) * | 2018-10-25 | 2019-07-16 | 中冶赛迪工程技术股份有限公司 | Conductive cross arm with electrode arc voltage detecting function |
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| CN109254178A (en) | 2019-01-22 |
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