CN203225583U - Power supply apparatus for blast furnace - Google Patents
Power supply apparatus for blast furnace Download PDFInfo
- Publication number
- CN203225583U CN203225583U CN 201320232782 CN201320232782U CN203225583U CN 203225583 U CN203225583 U CN 203225583U CN 201320232782 CN201320232782 CN 201320232782 CN 201320232782 U CN201320232782 U CN 201320232782U CN 203225583 U CN203225583 U CN 203225583U
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- CN
- China
- Prior art keywords
- power supply
- contactor
- automatic bus
- power
- blast furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a power supply apparatus for a blast furnace. The power supply apparatus comprises commercial power supplies. The commercial power supplies include a first commercial power supply and a second commercial power supply. The first commercial power supply and the second commercial power supply are connected with a first automatic switch device. The first automatic switch device is connected with an uninterrupted power source, and is connected with a second automatic switch device. The uninterrupted power source is connected with the second automatic switch device. According to the utility model, the power supply apparatus can reliably supply power for the blast furnace, and has the advantages of low investment and high reliability, thereby completely preventing losses caused by power supply faults of critical equipment, such as the blast furnace system, etc.
Description
Technical field
The utility model relates to a kind of electric supply installation for blast furnace.
Background technology
At present, steel-making is that uninterrupted power supply is as the safety guarantee that has a power failure in short-term by the uninterrupted power supply power supply with the control system of blast furnace and the power supply of key equipment.And uninterrupted power supply is normally by one tunnel low pressure mains-supplied.And the such pass key control system of image height stove, though all adopted uninterrupted power supply, the phenomenon that outage takes place happens occasionally, and often brings very big loss to blast-furnace equipment.What cause this situation is two kinds of drawbacks that this uninterrupted power supply supply power mode exists under extreme case: one, the fault of uninterrupted power supply own, and control system and visual plant are with dead electricity; Two, one tunnel low pressure municipal power failure of powering for uninterrupted power supply, control system and visual plant will exhaust the back dead electricity at uninterrupted battery supply, and then control system and the whole dead electricity of visual plant, bringing tremendous loss to enterprise, this is the existing in prior technology weak point.
Summary of the invention
The purpose of this utility model is exactly at the existing in prior technology deficiency, and provide a kind of technical scheme of the electric supply installation for blast furnace, the device of this scheme powers for blast furnace reliably, small investment, simple in structure, good reliability can thoroughly be stopped all kinds of losses that key equipment power supply power supply troubles such as high furnace control system cause.
This programme is realized by following technical measures: a kind of electric supply installation for blast furnace, comprise civil power, the characteristics of this programme are: described civil power comprises the first power supply civil power and the second power supply civil power, the described first power supply civil power is connected with first automatic bus with the second power supply civil power, described first automatic bus is connected with uninterrupted power supply, described first automatic bus is connected with second automatic bus, and described uninterrupted power supply is connected with second automatic bus.
Described first automatic bus comprises the first contactor KM1 that is connected on the first power supply civil power, the described first contactor KM1 also connects with the normally-closed contact KM2-1 of the second contactor KM2, the described second contactor KM2 is connected on the second power supply civil power, the normally-closed contact KM1-1 of the described first contactor KM1 connects with the second contactor KM2, the normally opened contact KM1-2 of the described first contactor KM1 is connected between the output of the first power supply civil power and first automatic bus, the normally opened contact KM2-2 of the described second contactor KM2 is connected between the output of second power supply civil power and first automatic bus, the output of described first automatic bus respectively with uninterrupted power supply, second automatic bus connects.
Described second automatic bus comprises the first relay K A that is connected on the uninterrupted power supply output, there is the 3rd contactor KM3 in parallel with the described first relay K A, the normally opened contact KA-1 of the described first relay K A connects with described the 3rd contactor KM3, there is the first normally-closed contact KM4-1 of the 4th contactor KM4 to connect with the described first relay K A, described the 4th contactor KM4 is connected on the output of first automatic bus, the normally-closed contact KM3-1 of described the 3rd contactor KM3 connects with described the 4th contactor KM4, the normally-closed contact KA-2 of the described first relay K A connects with described the 4th contactor KM4, the normally opened contact KM3-2 of described the 3rd contactor KM3 is connected on the output of uninterrupted power supply and second automatic bus, the normally opened contact KM4-2 of described the 4th contactor KM4 is connected on the output of first automatic bus and the output of second automatic bus, the output of described second automatic bus is connected with the control system of circuit or corresponding production equipment, powers.
The beneficial effect of this programme can be learnt according to the narration to such scheme, owing in this scheme, there is the first power supply civil power to be connected with first automatic bus with the second power supply civil power, the two-way civil power done haul oneself willingly into, then first automatic bus and uninterrupted power supply are hauled oneself willingly into, can ensure power supply, prevent power supply trouble, guaranteed the operate as normal of blast furnace.This shows that the present invention compared with prior art has outstanding substantive distinguishing features and obvious improvement, the beneficial effect of its enforcement also is apparent.
Description of drawings
Fig. 1 is the structured flowchart of the utility model embodiment.
Fig. 2 is the circuit diagram of the utility model embodiment.
Among the figure, 1 is the first power supply civil power, and 2 is the second power supply civil power, and 3 is first automatic bus, and 4 is uninterrupted power supply, and 5 is second automatic bus, and 6 is power device.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
By accompanying drawing as can be seen, a kind of electric supply installation for blast furnace of this programme, comprise civil power, described civil power comprises the first power supply civil power 1 and the second power supply civil power 2, the described first power supply civil power 1 is connected with first automatic bus 3 with the second power supply civil power 2, described first automatic bus 3 is connected with uninterrupted power supply 4, described first automatic bus 3 is connected with second automatic bus 5, described uninterrupted power supply 4 is connected with second automatic bus 5, and second automatic bus 5 is given power device 6 power supplies such as control system or corresponding production equipment.
Described first automatic bus 3 comprises the first contactor KM1 that is connected on the first power supply civil power 1, the described first contactor KM1 also connects with the normally-closed contact KM2-1 of the second contactor KM2, the described second contactor KM2 is connected on the second power supply civil power, the normally-closed contact KM1-1 of the described first contactor KM1 connects with the second contactor KM2, the normally opened contact KM1-2 of the described first contactor KM1 is connected between the output of the first power supply civil power and first automatic bus 3, the normally opened contact KM2-2 of the described second contactor KM2 is connected between the output of second power supply civil power 2 and first automatic bus 3, the output of described first automatic bus 3 respectively with uninterrupted power supply 4, second automatic bus 5 connects.
Described second automatic bus 5 comprises the first relay K A that is connected on uninterrupted power supply 4 outputs, there is the 3rd contactor KM3 in parallel with the described first relay K A, the normally opened contact KA-1 of the described first relay K A connects with described the 3rd contactor KM3, there is the first normally-closed contact KM4-1 of the 4th contactor KM4 to connect with the described first relay K A, described the 4th contactor KM4 is connected on the output of first automatic bus 3, the normally-closed contact KM3-1 of described the 3rd contactor KM3 connects with described the 4th contactor KM4, the normally-closed contact KA-2 of the described first relay K A connects with described the 4th contactor KM4, the normally opened contact KM3-2 of described the 3rd contactor KM3 is connected on the output of uninterrupted power supply 4 and second automatic bus 5, and the normally opened contact KM4-2 of described the 4th contactor KM4 is connected on the output of first automatic bus 3 and the output of second automatic bus 5.
During power supply, when the first power supply civil power 1 send electricity prior to the second power supply civil power 2, the first contactor KM1 gets, the first normally-closed contact KM1-1 of the first contactor KM1 disconnects, the second contactor KM2 dead electricity, and the normally opened contact KM2-2 of the second contactor KM2 disconnects, then the first power supply civil power 1 is as main power source, second the power supply civil power 2 as stand-by power supply, anyway first the power supply civil power 1 as stand-by power supply, second the power supply civil power 2 as main power source; To with second automatic bus 5, during uninterrupted power supply 4 power supply earlier, uninterrupted power supply 4 is as main power source, the power supply that first automatic bus 3 provides is stand-by power supply, otherwise the power supply that first automatic bus 3 provides is main power source, uninterrupted power supply 4 is as stand-by power supply.
Claims (3)
1. electric supply installation that is used for blast furnace, comprise civil power, it is characterized in that: described civil power comprises the first power supply civil power and the second power supply civil power, the described first power supply civil power is connected with first automatic bus with the second power supply civil power, described first automatic bus is connected with uninterrupted power supply, described first automatic bus is connected with second automatic bus, and described uninterrupted power supply is connected with second automatic bus.
2. the electric supply installation for blast furnace according to claim 1, it is characterized in that: described first automatic bus comprises the first contactor KM1 that is connected on the first power supply civil power, the described first contactor KM1 also connects with the normally-closed contact KM2-1 of the second contactor KM2, the described second contactor KM2 is connected on the second power supply civil power, the normally-closed contact KM1-1 of the described first contactor KM1 connects with the second contactor KM2, the normally opened contact KM1-2 of the described first contactor KM1 is connected between the output of the first power supply civil power and first automatic bus, and the normally opened contact KM2-2 of the described second contactor KM2 is connected between the output of the second power supply civil power and first automatic bus.
3. the electric supply installation for blast furnace according to claim 1, it is characterized in that: described second automatic bus comprises the first relay K A that is connected on the uninterrupted power supply output, there is the 3rd contactor KM3 in parallel with the described first relay K A, the normally opened contact KA-1 of the described first relay K A connects with described the 3rd contactor KM3, there is the first normally-closed contact KM4-1 of the 4th contactor KM4 to connect with the described first relay K A, described the 4th contactor KM4 is connected on the output of first automatic bus, the normally-closed contact KM3-1 of described the 3rd contactor KM3 connects with described the 4th contactor KM4, the normally-closed contact KA-2 of the described first relay K A connects with described the 4th contactor KM4, the normally opened contact KM3-2 of described the 3rd contactor KM3 is connected on the output of uninterrupted power supply and second automatic bus, and the normally opened contact KM4-2 of described the 4th contactor KM4 is connected on the output of first automatic bus and the output of second automatic bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320232782 CN203225583U (en) | 2013-05-03 | 2013-05-03 | Power supply apparatus for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320232782 CN203225583U (en) | 2013-05-03 | 2013-05-03 | Power supply apparatus for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203225583U true CN203225583U (en) | 2013-10-02 |
Family
ID=49252573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320232782 Expired - Fee Related CN203225583U (en) | 2013-05-03 | 2013-05-03 | Power supply apparatus for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203225583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236736A (en) * | 2013-05-03 | 2013-08-07 | 济钢集团有限公司 | Power supply device for blast furnace |
-
2013
- 2013-05-03 CN CN 201320232782 patent/CN203225583U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236736A (en) * | 2013-05-03 | 2013-08-07 | 济钢集团有限公司 | Power supply device for blast furnace |
| CN103236736B (en) * | 2013-05-03 | 2015-08-19 | 济钢集团有限公司 | A kind of electric supply installation for blast furnace |
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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: 20131002 Termination date: 20160503 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |