CN103267026A - Two-pull-four fan starting device - Google Patents
Two-pull-four fan starting device Download PDFInfo
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- CN103267026A CN103267026A CN2013102000641A CN201310200064A CN103267026A CN 103267026 A CN103267026 A CN 103267026A CN 2013102000641 A CN2013102000641 A CN 2013102000641A CN 201310200064 A CN201310200064 A CN 201310200064A CN 103267026 A CN103267026 A CN 103267026A
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- blower fan
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- power supply
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Abstract
The invention provides a two-pull-four fan starting device, and particularly relates to a fan starting device used for a blast furnace. The two-pull-four fan starting device comprises a power supply, two frequency converters and four fans, wherein the frequency converters and the four fans respectively comprise a frequency converter I, a frequency converter II, a fan I, a fan II, a fan III and a fan IV. When the fan starting device is started, the power supply provides a starting power supply for any one of the fans through the frequency converter I or the frequency converter II; when one frequency converter is damaged, the other frequency converter can be used for providing the starting power supply for any one of the fans, reliability of fan starting is improved, and the fact that the blast furnace cannot break air and fill drags due to the frequency converters is guaranteed. When the fans are started, the two-pull-four fan starting device is automatically switched into the power supply to directly provide electricity for the fans, and at the moment, the frequency converters are in a standby state. According to the two-pull-four fan starting device, the two frequency converters are used, starting reliability of the fans is increased, and meanwhile construction cost of a blast furnace air supplying system is significantly reduced.
Description
Technical field
The present invention relates to iron and steel blast furnace production field, particularly a kind of fan starting device for blast furnace.
Background technique
The startup of blower fan at present need match with frequency variator, and blower fan is corresponding one by one with frequency variator, and power supply provides the startup power supply by frequency variator for blower fan during startup, after fan starting is finished, need switch to power supply and directly power.When blower fan quantity increased, the quantity of frequency variator also increased thereupon, and cost also significantly increases.Simultaneously, when a frequency variator damaged, corresponding blower fan also can't start.Blower fan if blower fan can't start because of frequency variator, can cause the serious accident of disconnected wind phenomenon and filling slag when being the steel-making blast furnace air feed, cause great loss and be forced to urgent damping down to blast furnace.Blast furnace resumes production generally needs 3 to 7 days, needs two weeks when serious.Also need 1-2 hour as emergency start standby fan behind the resolute wind, can't satisfy the blast furnace safety in production.
Summary of the invention
Purpose of the present invention just provides a kind of two and drags the four fan device starting drive, and it can satisfy the reliability of fan starting when saving the change device.
The objective of the invention is to realize by such technological scheme, it includes power supply, two frequency variators and four typhoon machines, be respectively frequency variator I, frequency variator II, blower fan I, blower fan II, blower fan III and blower fan IV, the input end of frequency variator I and frequency variator II is connected on the main line I, the output terminal of frequency variator I and frequency variator II is connected on the main line II, and the input end of blower fan I, blower fan II, blower fan III and blower fan IV passes through K switch respectively
1-1, K
2-1, K
3-1And K
4-1Be connected on the main line II, power supply passes through successively from line I and K switch
1-2Be connected with the input end of blower fan I, power supply passes through successively from line II and K switch
2-2Be connected with the input end of blower fan II, power supply passes through successively from line III and K switch
3-2Be connected with the input end of blower fan III, power supply passes through successively from line IV and K switch
4-2Be connected with the input end of blower fan IV, from the line I, from the line II, from the line III with all be connected with the main line I from the line IV.
Further, described from the line I, from the line II, pass through K switch respectively from the line III with from the line IV
1-3, K
2-3, K
3-3And K
4-3Be connected with the main line I.
Further, described from the line I, from the line II, be respectively arranged with voltage monitor I, voltage monitor II, voltage monitor III and voltage monitor IV from the line III with from the line IV.
Further, described device also includes control unit, the instruction output end of control unit and K switch
1-1, K
2-1, K
3-1, K
4-1, K
1-2, K
2-2, K
3-2And K
4-2The instruction input end connect, voltage monitor I, voltage test device II, voltage test device III and voltage test device IV are sent to control unit with the data that collect.
Described from the line I, from the line II, be respectively arranged with overvoltage protective device I, overvoltage protective device II, overvoltage protective device III and overvoltage protective device IV from the line III with from the line IV.
Owing to adopted technique scheme, the present invention to have following advantage:
During startup, power supply provides the startup power supply by frequency variator I or frequency variator II for any typhoon machine, when a change device damages, can use another frequency variator to provide the startup power supply for any typhoon machine, improved the reliability of fan starting, guaranteed that blast furnace can be because of the frequency variator wind filling slag that break.Behind fan starting, the present invention automatically switches to power supply and directly is the blower fan power supply, and this moment, frequency variator was handled holding state.The present invention uses two frequency variators, when having increased the fan starting reliability, has significantly reduced the construction cost of blast furnace air feed system.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being apparent to those skilled in the art to investigating hereinafter, perhaps can obtain instruction from the practice of the present invention.Target of the present invention and other advantages can realize and obtain by following specification and claims.
Description of drawings
Description of drawings of the present invention is as follows.
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Two drag the four fan device starting drive, include power supply, two frequency variators and four typhoon machines, be respectively frequency variator I, frequency variator II, blower fan I, blower fan II, blower fan III and blower fan IV, the input end of frequency variator I and frequency variator II is connected on the main line I, the output terminal of frequency variator I and frequency variator II is connected on the main line II, and the input end of blower fan I, blower fan II, blower fan III and blower fan IV passes through K switch respectively
1-1, K
2-1, K
3-1And K
4-1Be connected on the main line II, power supply passes through successively from line I and K switch
1-2Be connected with the input end of blower fan I, power supply passes through successively from line II and K switch
2-2Be connected with the input end of blower fan II, power supply passes through successively from line III and K switch
3-2Be connected with the input end of blower fan III, power supply passes through successively from line IV and K switch
4-2Be connected with the input end of blower fan IV, from the line I, from the line II, from the line III with all be connected with the main line I from the line IV.
Startup with the blower fan I is example, as shown in Figure 1, and K switch
1-1Closure, K switch
1-2Disconnect, power supply is successively by providing inrush current from line I and main line I for frequency variator I or frequency variator II, the mode of operation that only need control frequency variator can be finished the selection work of frequency variator, and frequency variator is after having finished the power supply frequency conversion, more successively by main line II and K switch
1-1For blower fan provides the startup power supply.Behind fan starting, K switch
1-1Disconnect K switch
1-2Closure, power supply are directly passed through from line I and K switch
1-2For the blower fan I provides working power.
Described from the line I, from the line II, pass through K switch respectively from the line III with from the line IV
1-3, K
2-3, K
3-3And K
4-3Be connected with the main line I.By cut-offfing K switch
1-3, K
2-3, K
3-3And K
4-3, also can realize the switching of fan starting state and working state.
Described from the line I, from the line II, be respectively arranged with voltage monitor I, voltage monitor II, voltage monitor III and voltage monitor IV from the line III with from the line IV.Whether starting resistor and operating voltage that voltage monitor I, voltage monitor II, voltage monitor III and voltage monitor IV can be monitored corresponding blower fan respectively be normal.
Described device also includes control unit, the instruction output end of control unit and K switch
1-1, K
2-1, K
3-1, K
4-1, K
1-2, K
2-2, K
3-2And K
4-2The instruction input end connect, voltage monitor I, voltage monitor II, voltage monitor III and voltage monitor IV are sent to control unit with the data that collect.For the ease of operation, described switch is motor switch, by processing procedure order control in the control unit, can deal with emergency case.
Described from the line I, from the line II, be respectively arranged with overvoltage protective device I, overvoltage protective device II, overvoltage protective device III and overvoltage protective device IV from the line III with from the line IV.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. two drag the four fan device starting drive, it is characterized in that: described device includes power supply, two frequency variators and four typhoon machines, be respectively frequency variator I, frequency variator II, blower fan I, blower fan II, blower fan III and blower fan IV, the input end of frequency variator I and frequency variator II is connected on the main line I, the output terminal of frequency variator I and frequency variator II is connected on the main line II, and the input end of blower fan I, blower fan II, blower fan III and blower fan IV passes through K switch respectively
1-1, K
2-1, K
3-1And K
4-1Be connected on the main line II, power supply passes through successively from line I and K switch
1-2Be connected with the input end of blower fan I, power supply passes through successively from line II and K switch
2-2Be connected with the input end of blower fan II, power supply passes through successively from line III and K switch
3-2Be connected with the input end of blower fan III, power supply passes through successively from line IV and K switch
4-2Be connected with the input end of blower fan IV, from the line I, from the line II, from the line III with all be connected with the main line I from the line IV.
2. as claimed in claim 1 two drag the four fan device starting drive, it is characterized in that: be described from the line I, from the line II, pass through K switch respectively from the line III with from the line IV
1-3, K
2-3, K
3-3And K
4-3Be connected with the main line I.
3. as claimed in claim 1 two drag the four fan device starting drive, it is characterized in that: be described from the line I, from the line II, be respectively arranged with voltage monitor I, voltage monitor II, voltage monitor III and voltage monitor IV from the line III with from the line IV.
4. as claimed in claim 3 two drag the four fan device starting drive, it is characterized in that: described device also includes control unit, the instruction output end of control unit and K switch
1-1, K
2-1, K
3-1, K
4-1, K
1-2, K
2-2, K
3-2And K
4-2The instruction input end connect, voltage monitor I, voltage monitor II, voltage monitor III and voltage monitor IV are sent to control unit with the data that collect.
5. as claimed in claim 1 two drag the four fan device starting drive, it is characterized in that: be described from the line I, from the line II, be respectively arranged with overvoltage protective device I, overvoltage protective device II, overvoltage protective device III and overvoltage protective device IV from the line III with from the line IV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102000641A CN103267026A (en) | 2013-05-24 | 2013-05-24 | Two-pull-four fan starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102000641A CN103267026A (en) | 2013-05-24 | 2013-05-24 | Two-pull-four fan starting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103267026A true CN103267026A (en) | 2013-08-28 |
Family
ID=49010674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102000641A Pending CN103267026A (en) | 2013-05-24 | 2013-05-24 | Two-pull-four fan starting device |
Country Status (1)
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|---|---|
| CN (1) | CN103267026A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29622672U1 (en) * | 1996-02-29 | 1997-04-17 | Eisenmann Kg Maschbau | Circuit device for fans |
| JP2000262092A (en) * | 1999-03-09 | 2000-09-22 | Toshiba Corp | Starter for ac motor |
| DE20219467U1 (en) * | 2002-12-06 | 2003-03-13 | Stoeber Antriebstech Gmbh & Co | Device for fault detection and interlocking of circuit breakers |
| CN202034929U (en) * | 2011-04-14 | 2011-11-09 | 广州智光电气股份有限公司 | Control device capable of driving double-motor soft startup through high-voltage double frequency conversion |
| CN202535298U (en) * | 2012-05-10 | 2012-11-14 | 新兴铸管股份有限公司 | High-voltage frequency conversion two-driven-by-one device of dust blower |
| CN202649782U (en) * | 2012-03-31 | 2013-01-02 | 重庆明宝科技发展有限公司 | High and low pressure fan/pump frequency conversion redundancy DCS control system |
| CN203257711U (en) * | 2013-05-24 | 2013-10-30 | 重庆钢铁(集团)有限责任公司 | Two-drive-four fan starter |
-
2013
- 2013-05-24 CN CN2013102000641A patent/CN103267026A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29622672U1 (en) * | 1996-02-29 | 1997-04-17 | Eisenmann Kg Maschbau | Circuit device for fans |
| JP2000262092A (en) * | 1999-03-09 | 2000-09-22 | Toshiba Corp | Starter for ac motor |
| DE20219467U1 (en) * | 2002-12-06 | 2003-03-13 | Stoeber Antriebstech Gmbh & Co | Device for fault detection and interlocking of circuit breakers |
| CN202034929U (en) * | 2011-04-14 | 2011-11-09 | 广州智光电气股份有限公司 | Control device capable of driving double-motor soft startup through high-voltage double frequency conversion |
| CN202649782U (en) * | 2012-03-31 | 2013-01-02 | 重庆明宝科技发展有限公司 | High and low pressure fan/pump frequency conversion redundancy DCS control system |
| CN202535298U (en) * | 2012-05-10 | 2012-11-14 | 新兴铸管股份有限公司 | High-voltage frequency conversion two-driven-by-one device of dust blower |
| CN203257711U (en) * | 2013-05-24 | 2013-10-30 | 重庆钢铁(集团)有限责任公司 | Two-drive-four fan starter |
Non-Patent Citations (1)
| Title |
|---|
| 高念周: "高炉鼓风机控制系统及变频启动技术应用", 《科技风》, no. 6, 25 March 2013 (2013-03-25), pages 91 * |
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Application publication date: 20130828 |