CN101825655B - Electric furnace load automatic detection recorder - Google Patents

Electric furnace load automatic detection recorder Download PDF

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Publication number
CN101825655B
CN101825655B CN2010101753503A CN201010175350A CN101825655B CN 101825655 B CN101825655 B CN 101825655B CN 2010101753503 A CN2010101753503 A CN 2010101753503A CN 201010175350 A CN201010175350 A CN 201010175350A CN 101825655 B CN101825655 B CN 101825655B
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CN
China
Prior art keywords
coil
luo
low pressure
pressure measurement
measurement sensor
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Application number
CN2010101753503A
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Chinese (zh)
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CN101825655A (en
Inventor
陶祥生
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无锡龙魁电力电容器有限公司
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Priority to CN2010101753503A priority Critical patent/CN101825655B/en
Publication of CN101825655A publication Critical patent/CN101825655A/en
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Publication of CN101825655B publication Critical patent/CN101825655B/en

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Abstract

The invention relates to an electric furnace load automatic detection recorder, comprising a voltage mutual inductor, a current mutual inductor, a first Rogowski coil, a second Rogowski coil, a first low voltage measuring sensor, a second low voltage measuring sensor, an integrator and a processor; wherein the voltage mutual inductor and the current mutual inductor are arranged at the primary side of an electric furnace transformer, the first Rogowski coil and the first low voltage measuring sensor are arranged at short web close to the electric furnace transformer, the second Rogowski coil and the second low voltage measuring sensor are arranged at the tail end of a water-cooling cable, the voltage mutual inductor and the current mutual inductor are connected with the processor, and the first Rogowski coil, the second Rogowski coil, the first low voltage measuring sensor and the second low voltage measuring sensor are connected with the processor by virtue of the integrator. Heavy current at low voltage side is accurately measured by Rogowski coil, thus providing guarantee for recorder to realize accurate monitoring.

Description

Electric furnace load automatic detection recorder

Technical field

The present invention relates to a kind of electric furnace load automatic detection recorder.

Background technology

Submerged arc furnace system of the prior art generally includes furnace transformer 1, short net 3, water-cooled cable 4 and electrode 2 (referring to accompanying drawing 1).The hot stove in ore deposit is big owing to electric current, the instrument that does not have the special-purpose electricity consumption data to the electrode in the body of heater to detect at present.And electric current, Control of Voltage to electrode are to adopt the electric current of furnace transformer high-pressure side (primary side), voltage as the reference data, and cooperate by experienced maneuver.Technological requirement to various matallurgical products can't be controlled by accurate quantification, thereby can't guarantee the quality of product and reach best output.

Summary of the invention

In order to overcome the deficiencies in the prior art part, the present invention proposes a kind of electric furnace load automatic detection recorder, it adopts Luo-coil that low pressure end (secondary side of furnace transformer) is accurately monitored, and further the electricity consumption situation in the hot stove stove in ore deposit is monitored accurately, offer precise data for formulating mine heat furnace smelting technology and standard.

According to an aspect of the present invention, a kind of electric furnace load automatic detection recorder is provided, it comprises voltage transformer (VT), current transformer, first Luo-coil, second Luo-coil, the first low pressure measurement sensor, the second low pressure measurement sensor, integrator and processor, wherein said voltage transformer (VT) summation current transformer is arranged on the furnace transformer primary side, first Luo-coil and the first low pressure measurement sensor are arranged on the position of the close furnace transformer of short net, second Luo-coil and the second low pressure measurement sensor are arranged on short net or water-cooled cable end, described voltage transformer (VT) summation current transformer is connected with processor, first Luo-coil, second Luo-coil, the first low pressure measurement sensor is connected with processor by integrator with the second low pressure measurement sensor.Because the low-pressure side (secondary side) at furnace transformer is provided with the first low pressure measurement sensor and the second low pressure measurement sensor, therefore, help monitoring the pressure drop on short net, water-cooled cable, provide good basis for formulating mine heat furnace smelting technology and standard.

According to a further aspect of the invention, described processor is CPU.

According to a further aspect of the invention, described CPU comprises the port that electrode control port, voltage are transferred the files port and is connected with compensation condenser.

According to a further aspect of the invention, described first Luo-coil and second Luo-coil are a plurality of, the described first low pressure measurement sensor and second survey sensor are a plurality of, short net comprise three single-phase, each is single-phase to comprise many copper pipes, every copper pipe all connects a water-cooled cable, position near furnace transformer on every copper pipe all is provided with described first Luo-coil and the described first low pressure measurement sensor, and the end terminal and/or every water-cooled cable of every copper pipe all is provided with described second Luo-coil and the described second low pressure measurement sensor.

The present invention has the following advantages: adopt Luo-coil, can monitor the real current situation of low-pressure side, the understanding of employing low pressure measurement sensor is by the on-Line Voltage of short net and water-cooled cable pressure drop and therefore can transfer the files for transformer secondary, rise fall of electrodes is aligned, the switching compensation condenser provides the foundation; Can monitor accurately the electricity consumption situation in the hot stove stove in ore deposit, offer precise data for formulating mine heat furnace smelting technology and standard.

Description of drawings

Fig. 1 is an electric furnace load automatic detection recorder synoptic diagram of the present invention.

Embodiment

Below in conjunction with accompanying drawing; by preferred embodiment preferred forms of the present invention is described; the embodiment here is to explain the present invention; and should not be construed as limitation of the present invention; under the situation that does not break away from spirit of the present invention and essential scope; can make various changes and modifications, these all should be included within protection scope of the present invention.

As shown in Figure 1, wherein show a kind of electric furnace load automatic detection recorder, this registering instrument comprises voltage transformer (VT), current transformer, first Luo-coil, second Luo-coil, the first low pressure measurement sensor, the second low pressure measurement sensor, integrator and processor, wherein said voltage transformer (VT) summation current transformer is arranged on the primary side (being the high-pressure side) of furnace transformer 1, first Luo-coil and the first low pressure measurement sensor are arranged on the position (being the secondary side of furnace transformer 1) of the close furnace transformer 1 of short net 3, second Luo-coil and the second low pressure measurement sensor are arranged on the end of water-cooled cable 4, described voltage transformer (VT) summation current transformer is connected with processor, first Luo-coil, second Luo-coil, the first low pressure measurement sensor is connected with processor by integrator with the second low pressure measurement sensor.Processor is gathered the signal from voltage transformer (VT), current transformer, first Luo-coil, second Luo-coil, the first low pressure measurement sensor and the second low pressure measurement sensor, and the signal after will handling is presented on the display screen after delivering to processor.In addition, processor can also be according to above-mentioned detection signal, provides precise information for implementing the transferring the files of Circuit Fault on Secondary Transformer, rise fall of electrodes and capacitor ruuning situation, parameter setting etc.

Replacedly, second Luo-coil and the second low pressure measurement sensor can also be arranged on the end of short net 3 (near the tie point of promptly short net 3 and water-cooled cable 4, not shown among Fig. 1), also can be chosen in short net 3 ends and water-cooled cable 4 ends (being near water-cooled cable 4 and the electrode tie point) second Luo-coil and the second low pressure measurement sensor are set.

Because the low-pressure side (secondary side) at furnace transformer is provided with the first low pressure measurement sensor and the second low pressure measurement sensor, therefore, help monitoring the pressure drop on short net, water-cooled cable, provide good basis for formulating mine heat furnace smelting technology and standard.Further, processor can also demonstration and analytical voltage, current power ruuning situation and harmonic wave situation or the like.

Preferably, described processor is CPU.Wherein, the scope of described registering instrument monitoring is as follows.High-pressure side parameter: the applied power of transformer; Power factor; Active current; Reactive current; The electric current of each harmonic, voltage.Transformer secondary end parameter: voltage; Power factor; Active current; Reactive current; The electric current of each harmonic, voltage.The terminal parameter of short net and water power cable: voltage; Power factor; Active current; Reactive current; The electric current of each harmonic, voltage.

The monitoring content of CPU includes: can analyze the pressure drop of short net and the loss situation of electric current, can analyze three-phase imbalance electric current and voltage condition simultaneously; Electricity consumption time and power off time; Current maxima and minimum value (phase-splitting detection); Voltage ceiling voltage and minimum voltage.CPU also has the storage Presentation Function simultaneously, 1.. and the data that detect all possess memory function, have a power failure not lose; 2.. can show and inquire about various data and operation curve figure; 3.. Monitoring Data is printable, also can have communication interface telecommunication and control, for robotization control provides precise information.

Preferably, described CPU comprises the port that electrode control port, voltage are transferred the files port and is connected with compensation condenser.

Preferably, described first Luo-coil and second Luo-coil are a plurality of, the described first low pressure measurement sensor and second survey sensor are a plurality of, short net comprise three single-phase, each is single-phase to comprise many copper pipes, every copper pipe all connects a water-cooled cable, position near furnace transformer on every copper pipe all is provided with described first Luo-coil and the described first low pressure measurement sensor, and the end terminal and/or every water-cooled cable of every copper pipe all is provided with described second Luo-coil and the described second low pressure measurement sensor.Can make Monitoring Data true more, accurate like this.

In sum, the present invention has following one or more advantage: adopt Luo-coil, can monitor the real current situation of low-pressure side, and therefore can provide the foundation for dynamic switching compensation condenser; Can monitor accurately the electricity consumption situation in the hot stove stove in ore deposit, offer precise data for formulating mine heat furnace smelting technology and standard.

Claims (4)

1. electric furnace load automatic detection recorder, it is characterized in that comprising voltage transformer (VT), current transformer, first Luo-coil, second Luo-coil, the first low pressure measurement sensor, the second low pressure measurement sensor, integrator and processor, wherein said voltage transformer (VT) summation current transformer is arranged on the furnace transformer primary side, first Luo-coil and the first low pressure measurement sensor are arranged on the position of the close furnace transformer of short net, second Luo-coil and the second low pressure measurement sensor are arranged on short net end or water-cooled cable end, described voltage transformer (VT) summation current transformer is connected with processor, first Luo-coil, second Luo-coil, the first low pressure measurement sensor is connected with processor by integrator with the second low pressure measurement sensor.
2. according to the electric furnace load automatic detection recorder of claim 1, it is characterized in that described processor is CPU.
3. according to the electric furnace load automatic detection recorder of claim 2, it is characterized in that described CPU comprises the port that electrode control port, voltage are transferred the files port and is connected with compensation condenser.
4. according to the electric furnace load automatic detection recorder of claim 1 or 2, it is characterized in that described first Luo-coil and second Luo-coil are a plurality of, the described first low pressure measurement sensor and second survey sensor are a plurality of, short net comprise three single-phase, each is single-phase to comprise many copper pipes, every copper pipe all connects a water-cooled cable, position near furnace transformer on every copper pipe all is provided with described first Luo-coil and the described first low pressure measurement sensor, and the end terminal or every water-cooled cable of every copper pipe all is provided with described second Luo-coil and the described second low pressure measurement sensor.
CN2010101753503A 2010-05-18 2010-05-18 Electric furnace load automatic detection recorder CN101825655B (en)

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Application Number Priority Date Filing Date Title
CN2010101753503A CN101825655B (en) 2010-05-18 2010-05-18 Electric furnace load automatic detection recorder

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CN101825655A CN101825655A (en) 2010-09-08
CN101825655B true CN101825655B (en) 2011-12-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102692573A (en) * 2012-05-28 2012-09-26 无锡北科自动化科技有限公司 Submerged arc furnace transformer load monitoring and recording device

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CN102435813B (en) * 2011-09-28 2015-11-25 许继电气股份有限公司 A kind of method for collecting current on low-voltage side of electric furnace transformer and protective relaying device
CN102590583B (en) * 2012-02-03 2015-02-04 中冶东方工程技术有限公司 System and method for measuring current of electric furnace
CN102998514B (en) * 2012-11-16 2016-05-11 北京思能达电力电子技术有限公司 A kind of electrode current measurement mechanism for low pressure compensation of submerged arc furnace
CN104422829A (en) * 2013-08-19 2015-03-18 国网青海电力节能服务有限公司 Submerged arc furnace load measurement and control system and method
CN103543329B (en) * 2013-11-07 2016-04-06 遵义汇峰智能系统有限责任公司 A kind of high energy consumption smelting system electric energy loss measuring method
CN103606889B (en) * 2013-11-26 2016-01-20 四川西南不锈钢有限责任公司 A kind of secondary side overcurrent protection circuit of electric arc furnace transformer
CN104360123B (en) * 2014-11-10 2017-12-15 绵阳市维博电子有限责任公司 A kind of electricity capacity separation sensor and mineral hot furnace power measurement system
CN104459306B (en) 2014-12-18 2017-02-22 东北大学 Power demand quantity remote monitoring system and method for magnesium electrical smelting group furnaces
CN105866520A (en) * 2016-03-30 2016-08-17 深圳市创银科技股份有限公司 High and low voltage dual-channel current detection system
CN106124826B (en) * 2016-06-17 2019-01-04 华中科技大学 A kind of mineral hot furnace working of a furnace digital management system, control method and its monitoring device
CN107436616A (en) * 2017-08-04 2017-12-05 昆山帝森克罗德光电技术有限公司 A kind of Rogowski coil integrating circuit for power factor controller product

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JPS62211342A (en) * 1986-03-03 1987-09-17 Nippon Kokan Kk <Nkk> Manufacture of ferroalloy
CN101413970B (en) * 2008-12-11 2010-12-08 中冶东方工程技术有限公司 Method for measuring electrode current of buried arc furnace
CN201436543U (en) * 2009-01-05 2010-04-07 中冶东方工程技术有限公司 Electric current parameter measuring system for ore smelting stove
CN201707379U (en) * 2010-05-18 2011-01-12 无锡龙魁电力电容器有限公司 Automatic detection recorder for submerged arc furnace load

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102692573A (en) * 2012-05-28 2012-09-26 无锡北科自动化科技有限公司 Submerged arc furnace transformer load monitoring and recording device

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Address after: 214101, 18-26 Ting Zhuang Road, Xishan District, Jiangsu, Wuxi

Patentee after: Wuxi Beike Automation Technology Co.,Ltd.

Address before: 214101, No. 27 middle Yunlin Road, Ting Ting, Xishan economic and Technological Development Zone, Wuxi District, Jiangsu

Patentee before: Wuxi Longkui Electric Power Capacitor Co., Ltd.

C56 Change in the name or address of the patentee

Owner name: WUXI BEIKE AUTOMATION TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: WUXI LONGKUI ELECTRIC POWER CAPACITOR CO., LTD.