CN203257711U - Two-drive-four fan starter - Google Patents
Two-drive-four fan starter Download PDFInfo
- Publication number
- CN203257711U CN203257711U CN 201320293194 CN201320293194U CN203257711U CN 203257711 U CN203257711 U CN 203257711U CN 201320293194 CN201320293194 CN 201320293194 CN 201320293194 U CN201320293194 U CN 201320293194U CN 203257711 U CN203257711 U CN 203257711U
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- fan
- blower fan
- iii
- power supply
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Abstract
The utility model provides a two-drive-four fan starter, in particular to the fan starter used for a blast furnace. The two-drive-four fan starter comprises a power supply, two frequency converters and four fans, wherein the frequency converters are respectively the first frequency converter and the second frequency converter, and the fans are respectively the first fan, the second fan, the third fan and the fourth fan. When the two-drive-four fan starter is started, the power supply supplies starting power to any fan through the first frequency converter or the second frequency converter, when one frequency converter is damaged, the other frequency converter can be used for supplying starting power to any fan, therefore, starting reliability of the fans is improved, and wind supply interruption and slag pouring of the blast furnace due to the frequency converters are avoided. When the fans are started, the two-drive-four fan starter is automatically converted into the mode that the power supply directly supplies power to the fans, and at the moment the frequency converters are in a standby state. The two frequency converters are used, therefore, the starting reliability of the fans is improved, and cost for building an air supply system of the blast furnace is remarkably lowered.
Description
Technical field
The utility model relates to iron and steel blast furnace production field, particularly a kind of fan starting device for blast furnace.
Background technique
The at present startup of blower fan need to 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 to 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 having a frequency variator to damage, 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 such as emergency start standby fan behind the resolute wind, can't satisfy blast furnace safety production.
The model utility content
The purpose of this utility model just provides a kind of two and drags the four fan device starting drive, and it can when saving the change device, satisfy the reliability of fan starting.
The purpose of this utility model is to realize by such technological scheme, it includes power supply, two frequency variators and four Fans, 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 respectively K switch
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 be connected the line IV and all be connected with the main line I.
Further, described from the line I, from the line II, pass through respectively K switch 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 utlity model has following advantage:
During startup, power supply provides the startup power supply by frequency variator I or frequency variator II for any Fans, when a change device damages, can use another frequency variator to provide the startup power supply for any Fans, 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 utility model automatically switches to power supply and directly is the blower fan power supply, and this moment, frequency variator was processed holding state.The utility model 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 utility model, 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 from practice of the present utility model, obtain instruction.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
Description of drawings of the present utility model is as follows.
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Two drag the four fan device starting drive, include power supply, two frequency variators and four Fans, 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 respectively K switch
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 be connected the line IV and all be connected with the main line I.
Take the startup of blower fan I as example, as shown in Figure 1, 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 to 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 respectively K switch 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 respectively corresponding blower fan 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 the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model 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 the technical solution of the utility model, 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 utility model.
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 Fans, 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 respectively K switch
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 be connected the line IV and all be connected with the main line I.
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 respectively K switch 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 |
|---|---|---|---|
| CN 201320293194 CN203257711U (en) | 2013-05-24 | 2013-05-24 | Two-drive-four fan starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320293194 CN203257711U (en) | 2013-05-24 | 2013-05-24 | Two-drive-four fan starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257711U true CN203257711U (en) | 2013-10-30 |
Family
ID=49470280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320293194 Expired - Fee Related CN203257711U (en) | 2013-05-24 | 2013-05-24 | Two-drive-four fan starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267026A (en) * | 2013-05-24 | 2013-08-28 | 重庆钢铁(集团)有限责任公司 | Two-pull-four fan starting device |
-
2013
- 2013-05-24 CN CN 201320293194 patent/CN203257711U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267026A (en) * | 2013-05-24 | 2013-08-28 | 重庆钢铁(集团)有限责任公司 | Two-pull-four fan starting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20180524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |