CN204465133U - A kind of electric supply installation for blast furnace - Google Patents
A kind of electric supply installation for blast furnace Download PDFInfo
- Publication number
- CN204465133U CN204465133U CN201520170623.3U CN201520170623U CN204465133U CN 204465133 U CN204465133 U CN 204465133U CN 201520170623 U CN201520170623 U CN 201520170623U CN 204465133 U CN204465133 U CN 204465133U
- Authority
- CN
- China
- Prior art keywords
- power supply
- contactor
- normally opened
- opened contact
- power
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model provides a kind of electric supply installation for blast furnace, comprise the first power supply circuits for subsequent use each other and the second power supply circuits, first power supply circuits and the second power supply circuits are interlocked by the normally-closed contact KM2-3 of the normally-closed contact KM1-2 of contactor KM1, the normally-closed contact KM3-2 of contactor KM3 and contactor KM2, and when having electric current to pass through in contactor KM1 and contactor KM3, in contactor KM2, no current passes through, otherwise, when being energized in contactor KM2, in contactor KM1 and contactor KM3, equal no current passes through.The utility model overcomes the drawback that existing high furnace control system adopts single current supply circuit, reduces the loss that high furnace control system causes because of power supply trouble to a great extent, and then relatively improves the reliability of powering to blast furnace.
Description
Technical field
The utility model relates to for electrical domain, and specifically a kind of electric supply installation for blast furnace, is particularly useful for the power supply of the key equipment of iron and steel metallurgical industry, is also applicable to the power supply of the key equipment of cement industry.
Background technology
At present, the power supply of the key equipment of blast furnace system all Shi You mono-tunnel mains-supplied; The loop of control system adopts unity loop control, and this single control loop, once power-off, often brings extreme loss to blast-furnace equipment.And in extreme circumstances, cause the reason of above-mentioned single control loop power-off to have two kinds: one, loop is because of its inner arbitrary electric equipment original paper fault, causes load dead electricity; Two, be this road low pressure municipal power failure or dead electricity of load supplying, and then cause the whole dead electricity of visual plant, bring huge loss to enterprise.This is the technical problem existed in prior art.
Utility model content
Technical problem to be solved in the utility model is, for the technical problem existed in prior art, a kind of technical scheme of the electric supply installation for blast furnace is provided, the program adopts the drawback of single current supply circuit in existing high furnace control system for overcoming, the loss that high furnace control system causes because of power supply trouble can be reduced to a great extent, and then the reliability of powering to blast furnace can be improved to a great extent.
For solving the problems of the technologies described above, the utility model provides a kind of electric supply installation for blast furnace, comprises the first power supply circuits and the second power supply circuits; First power supply circuits comprise the first power supply civil power, the first power supply civil power starts arresting stop, frequency converter, relay K A1, contactor KM1 and contactor KM3, and the second power supply circuits comprise the second power supply civil power, the second power supply civil power starts arresting stop, soft initiator, contactor KM2, contactor KM4 and relay K A2;
In the first power supply circuits: the normally-closed contact KM2-3 that civil power of powering with described first after contactor KM1 and contactor KM3 parallel connection starts arresting stop and contactor KM2 is connected on the first power supply civil power, relay K A1, the normally opened contact KM1-3 of contactor KM1 and the normally opened contact KM3-3 of contactor KM3 is connected on the first power supply civil power, the normally opened contact KM1-1 of contactor KM1 and the normally opened contact KA1-1 of relay K A1 is in series with between the output of the first power supply civil power and frequency converter, the output of frequency converter is in series with the normally opened contact KM3-1 of contactor KM3, described normally opened contact KM3-1 is connected with load,
In the second power supply circuits: the second described power supply civil power starts arresting stop, the normally-closed contact KM1-2 of contactor KM1, the normally-closed contact KM3-2 of contactor KM3 and relay K A2 are connected on the second power supply civil power, the normally opened contact of soft initiator and contactor KM2 are connected on the second power supply civil power, and the normally opened contact KA2-2 of KA2 and contactor KM4 is connected on the second power supply civil power; After the normally opened contact KA2-1 of soft initiator series relay KA2, in parallelly with the normally opened contact KM2-1 of contactor KM2 form parallel module, between the output that described parallel module is connected on the second power supply civil power and the normally opened contact KM4-1 of contactor KM4, the load described in described normally opened contact KM4-1 connects.
Wherein, in the first power supply circuits, the normally opened contact KM1-1 of contactor KM1 is connected on the output of the first power supply civil power, is in series with the first air switch between the output of the first power supply civil power and described normally opened contact KM1-1.
Wherein, in the second power supply circuits, between the output of the second power supply civil power and described parallel module, be in series with the second air switch.
Wherein, described first power supply civil power starts arresting stop and adopts push-button switch or toggle switch or key switch.
Wherein, described second power supply civil power starts arresting stop and adopts push-button switch or toggle switch or key switch.
Wherein, described soft initiator adopts JJR-2250 soft initiator.
As preferably, the first power supply circuits also comprise the first indicator light, and the normally opened contact KM3-4 of the first indicator light and contactor KM3 and the normally opened contact KM1-4 of contactor KM1 is connected on the first power supply civil power.
As preferably, the second power supply circuits also comprise the second indicator light, and the normally opened contact KM4-2 of the second indicator light and contactor KM4 and the normally opened contact KA2-3 of relay K A2 is connected on the second power supply civil power.
The beneficial effects of the utility model are:
(1) the utility model comprises the first power supply circuits for subsequent use each other and the second power supply circuits, after any electric component fault wherein in a current supply circuit, or when there is power supply trouble or dead electricity in a power supply civil power wherein, be load supplying by another power supply circuits, this can increase the Stability and dependability of power supply;
(2) in the utility model, when contactor KM1 and contactor KM3 obtains electric, in contactor KM2, KM4, no current passes through, otherwise, when contactor KM2, KM4 obtain electric, in contactor KM1 and KM3, equal no current passes through, therefore, first power supply circuits and the second power supply circuits form interlocking by the normally-closed contact KM2-3 of the normally-closed contact KM1-2 of contactor KM1, the normally-closed contact KM3-2 of contactor KM3 and contactor KM2, this can proof load output can not short circuit, thus increase fail safe, the Stability and dependability of power supply;
(3) whether charged the first power supply circuits of the present utility model or the second power supply circuits for judging in current power supply circuits indicator light, and such as, when the first power supply circuits are load supplying, the first indicator light is bright, otherwise does not work; The use of indicator light, which power supply civil power what be convenient to observe current power supply comparatively intuitively is, is convenient to staff and overhauls fault power supply circuits, comparatively practical.
As can be seen here, the utility model has substantive distinguishing features and progress, and its beneficial effect implemented also is apparent.
Accompanying drawing explanation
Fig. 1 is the main circuit diagram of embodiment 1 and 2 of the present utility model;
Fig. 2 is the control circuit figure of the first power supply circuits of embodiment 1 of the present utility model;
Fig. 3 is the control circuit figure of the second power supply circuits of embodiment 1 of the present utility model;
Fig. 4 is the control circuit figure of the first power supply circuits of embodiment 2 of the present utility model;
Fig. 5 is the control circuit figure of the second power supply circuits of embodiment 2 of the present utility model.
Wherein, 1 is the first power supply civil power, and 2 is the second power supply civil power, 3 is the first air switch, 4 is the second air switch, and 5 is frequency converter, and 6 is soft initiator, 7 is load, 8 is that the first power supply civil power starts arresting stop, and 9 is that the second power supply civil power starts arresting stop, and 10 is normally opened contact, 11 is the first indicator light, and 12 is the second indicator light.
Embodiment
For making the technical solution of the utility model and advantage clearly, below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described.
Embodiment 1:
As shown in Figure 1,2 and 3, a kind of electric supply installation for blast furnace of the present utility model, comprises the first power supply circuits and the second power supply circuits, first power supply circuits comprise the first power supply civil power 1, first power supply civil power and start arresting stop 8, frequency converter 5, relay K A1, contactor KM1 and contactor KM3, and the second power supply circuits comprise the second power supply civil power 2, second power supply civil power and start arresting stop 9, soft initiator 6, contactor KM2, contactor KM4 and relay K A2, in the first power supply circuits: the normally-closed contact KM2-3 that civil power of powering with described first after contactor KM1 and contactor KM3 parallel connection starts arresting stop 8 and contactor KM2 is connected on the first power supply civil power 1, relay K A1, the normally opened contact KM1-3 of contactor KM1 and the normally opened contact KM3-3 of contactor KM3 is connected on the first power supply civil power 1, the normally opened contact KM1-1 of contactor KM1 and the normally opened contact KA1-1 of relay K A1 is in series with between the output of the first power supply civil power 1 and frequency converter 5, the output of frequency converter 5 is in series with the normally opened contact KM3-1 of contactor KM3, described normally opened contact KM3-1 is connected with load 7, in the second power supply circuits: the second power supply civil power starts arresting stop, the normally-closed contact KM1-2 of contactor KM1, the normally-closed contact KM3-2 of contactor KM3 and relay K A2 are connected on the second power supply civil power, and the normally opened contact 10 of soft initiator and contactor KM2 are connected on the second power supply civil power, the normally opened contact KA2-2 of KA2 and contactor KM4 is connected on the second power supply civil power 2, after the normally opened contact KA2-1 of soft initiator 6 series relay KA2, in parallelly with the normally opened contact KM2-1 of contactor KM2 form parallel module, between the output that described parallel module is connected on the second power supply civil power 2 and the normally opened contact KM4-1 of contactor KM4, the load described in described normally opened contact KM4-1 connects.
In this embodiment, in the first power supply circuits, the normally opened contact KM1-1 of contactor KM1 is connected on the output of the first power supply civil power 1, is in series with the first air switch 3 between the output of the first power supply civil power 1 and described normally opened contact KM1-1; In the second power supply circuits, between the output of the second power supply civil power 2 and described parallel module, be in series with the second air switch 4.Wherein, the first air switch 3 is for controlling the incoming power switch of the first power supply circuits, and the second air switch 4 is for controlling the incoming power switch of the second power supply circuits.
In this embodiment, the first described power supply civil power starts arresting stop 8 and adopts push-button switch, for controlling the connecting and disconnecting of the first power supply circuits; Second power supply civil power starts arresting stop 9 and also adopts push-button switch, for controlling the connecting and disconnecting of the second power supply circuits.
During use, press the first power supply civil power and start arresting stop 8, then contactor KM1 and contactor KM3 obtains electric, the normally-closed contact KM1-2 of contactor KM1 and the normally-closed contact KM3-2 of contactor KM3 all disconnects, the normally opened contact KM1-3 of contactor KM1 and the normally opened contact KM3-3 of contactor KM3 is all closed, and relay K A1 obtains electric, and the normally opened contact KA1-1 of relay K A1 closes, therefore, load 7 is powered by the first power supply circuits.Now, the second power supply circuits are as power supply circuits for subsequent use.
During use, press the second power supply civil power and start arresting stop 9, relay K A2 obtains electric; Relay K A2 obtain electric after, normally opened contact KA2-1 and KA2-2 of relay K A2 closes, wherein, after normally opened contact KA2-1 is closed, soft initiator 6 obtains electric, and then the normally opened contact 10 of soft initiator 6 closes, then relay K M2 obtains electric, and the normally opened contact KM2-1 of relay K M2 closes; In addition, after above-mentioned normally opened contact KA2-2 is closed, relay K M4 obtains electric, and the normally opened contact KM4-1 of relay K M4 closes then, thus load 7 obtains electric work.To sum up, press the second power supply civil power and start arresting stop 9, load 7 is powered by the second power supply circuits, and the first power supply circuits are as power supply circuits for subsequent use.
In this embodiment, described soft initiator 6 adopts JJR-2250 soft initiator.
In addition, involved in the utility model load 7 can be that the water pump, blower fan etc. in blast furnace system passes through motor-driven equipment arbitrarily.
To sum up, the utility model comprises the first power supply circuits for subsequent use each other and the second power supply circuits, which increases the Stability and dependability that blast furnace is powered; In addition, first power supply circuits of the present utility model and the second power supply circuits are interlocked by the normally-closed contact KM2-3 of the normally-closed contact KM1-2 of contactor KM1, the normally-closed contact KM3-2 of contactor KM3 and contactor KM2, when contactor KM1 and contactor KM3 obtains electric, in contactor KM2, no current passes through; Otherwise when contactor KM2 obtains electric, in contactor KM1 and contactor KM3, equal no current passes through, this can proof load 7 output can not short circuit, thus increase fail safe, the Stability and dependability of power supply.
In addition, the utility model structure is simple, small investment, is convenient to promote the use of.
Embodiment 2:
As shown in Fig. 1,4 and 5, compared with embodiment 1, the difference of the electric supply installation for blast furnace in present embodiment is: the first power supply circuits also comprise the first indicator light 11, first indicator light 11 and are connected on the first power supply civil power 1 with the normally opened contact KM3-4 of contactor KM3 and the normally opened contact KM1-4 of contactor KM1; Second power supply circuits also comprise the second indicator light 12, second indicator light 12 and are connected on the second power supply civil power 2 with the normally opened contact KM4-2 of contactor KM4 and the normally opened contact KA2-3 of relay K A2.
Wherein, the use of indicator light, which power supply civil power what be convenient to that staff observes current power supply comparatively intuitively is, and then is convenient to staff and overhauls fault power supply circuits, comparatively practical.
In the present embodiment, the first described indicator light 11 and the second indicator light 12 adopt incandescent lamp respectively.
Above execution mode only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to aforementioned embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in aforementioned each execution mode, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each execution mode technical scheme of the utility model.
Claims (8)
1. for an electric supply installation for blast furnace, it is characterized in that, comprise the first power supply circuits and the second power supply circuits; First power supply circuits comprise the first power supply civil power, the first power supply civil power starts arresting stop, frequency converter, relay K A1, contactor KM1 and contactor KM3, and the second power supply circuits comprise the second power supply civil power, the second power supply civil power starts arresting stop, soft initiator, contactor KM2, contactor KM4 and relay K A2;
In the first power supply circuits: the normally-closed contact KM2-3 that civil power of powering with described first after contactor KM1 and contactor KM3 parallel connection starts arresting stop and contactor KM2 is connected on the first power supply civil power, relay K A1, the normally opened contact KM1-3 of contactor KM1 and the normally opened contact KM3-3 of contactor KM3 is connected on the first power supply civil power, the normally opened contact KM1-1 of contactor KM1 and the normally opened contact KA1-1 of relay K A1 is in series with between the output of the first power supply civil power and frequency converter, the output of frequency converter is in series with the normally opened contact KM3-1 of contactor KM3, described normally opened contact KM3-1 is connected with load,
In the second power supply circuits: the second described power supply civil power starts arresting stop, the normally-closed contact KM1-2 of contactor KM1, the normally-closed contact KM3-2 of contactor KM3 and relay K A2 are connected on the second power supply civil power, the normally opened contact of soft initiator and contactor KM2 are connected on the second power supply civil power, and the normally opened contact KA2-2 of KA2 and contactor KM4 is connected on the second power supply civil power; After the normally opened contact KA2-1 of soft initiator series relay KA2, in parallelly with the normally opened contact KM2-1 of contactor KM2 form parallel module, between the output that described parallel module is connected on the second power supply civil power and the normally opened contact KM4-1 of contactor KM4, the load described in described normally opened contact KM4-1 connects.
2. the electric supply installation for blast furnace according to claim 1, it is characterized in that: in the first power supply circuits, the normally opened contact KM1-1 of contactor KM1 is connected on the output of the first power supply civil power, is in series with the first air switch between the output of the first power supply civil power and described normally opened contact KM1-1.
3. the electric supply installation for blast furnace according to claim 1 and 2, is characterized in that: in the second power supply circuits, is in series with the second air switch between the output of the second power supply civil power and described parallel module.
4. the electric supply installation for blast furnace according to claim 1 and 2, is characterized in that: described first power supply civil power starts arresting stop and adopts push-button switch or toggle switch or key switch.
5. the electric supply installation for blast furnace according to claim 1 and 2, is characterized in that: described second power supply civil power starts arresting stop and adopts push-button switch or toggle switch or key switch.
6. the electric supply installation for blast furnace according to claim 1 and 2, is characterized in that: described soft initiator adopts JJR-2250 soft initiator.
7. the electric supply installation for blast furnace according to claim 1 and 2, it is characterized in that: the first power supply circuits also comprise the first indicator light, the normally opened contact KM3-4 of the first indicator light and contactor KM3 and the normally opened contact KM1-4 of contactor KM1 is connected on the first power supply civil power.
8. the electric supply installation for blast furnace according to claim 1 and 2, it is characterized in that: the second power supply circuits also comprise the second indicator light, the normally opened contact KM4-2 of the second indicator light and contactor KM4 and the normally opened contact KA2-3 of relay K A2 is connected on the second power supply civil power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520170623.3U CN204465133U (en) | 2015-03-25 | 2015-03-25 | A kind of electric supply installation for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520170623.3U CN204465133U (en) | 2015-03-25 | 2015-03-25 | A kind of electric supply installation for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204465133U true CN204465133U (en) | 2015-07-08 |
Family
ID=53671960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520170623.3U Withdrawn - After Issue CN204465133U (en) | 2015-03-25 | 2015-03-25 | A kind of electric supply installation for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204465133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734330A (en) * | 2015-03-25 | 2015-06-24 | 山东钢铁股份有限公司 | Power supply unit used for blast furnace |
-
2015
- 2015-03-25 CN CN201520170623.3U patent/CN204465133U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734330A (en) * | 2015-03-25 | 2015-06-24 | 山东钢铁股份有限公司 | Power supply unit used for blast furnace |
| CN104734330B (en) * | 2015-03-25 | 2017-06-20 | 山东钢铁股份有限公司 | A kind of electric supply installation for blast furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105545763B (en) | Pressure of supply water tank remote control and control method | |
| CN102664460A (en) | Load remote automatic control power supply device | |
| CN204465133U (en) | A kind of electric supply installation for blast furnace | |
| CN206313698U (en) | A kind of frequency conversion and power frequency switching circuit air-cooler | |
| CN203384018U (en) | Air compressor energy-saving cabinet control system | |
| CN203872405U (en) | Control system for forcefully starting emergency lighting | |
| CN104734330A (en) | Power supply unit used for blast furnace | |
| CN203933377U (en) | A kind of frequency converter starts the secondary circuit circuit of cabinet | |
| CN205377720U (en) | A open and stop device for air compressor machine electric machine control | |
| CN203774865U (en) | A dual power switching circuit for fan power supply and a high-voltage inverter | |
| CN103236736B (en) | A kind of electric supply installation for blast furnace | |
| CN204142816U (en) | A kind of voltage fluctuation warning device | |
| CN203225583U (en) | Power supply apparatus for blast furnace | |
| CN209419524U (en) | A kind of electric machine control system of cement kiln flue gas capture system | |
| CN204476712U (en) | Control two control gear on a kind of power supply pump truck | |
| CN203691293U (en) | Mining explosion-proof and intrinsically-safe dual-contactor low-voltage AC soft starter | |
| CN203722328U (en) | Apparatus capable of automatically switch power frequency electric supply in case of UPS own faults | |
| CN203504859U (en) | Street lamp economizer zero load loss elimination apparatus | |
| CN202276189U (en) | Control power supply dual-channel power supplying device for high voltage inverter | |
| CN206268048U (en) | Air compressor machine frequency conversion system with standby frequency converter | |
| CN107762818B (en) | Dual-water pump switching control device capable of being controlled locally and remotely for electric power tunnel | |
| CN204203860U (en) | Main frame and peripheral hardware switching sequence control device | |
| CN203504284U (en) | Supply circuit of auxiliary device of large-scale unit | |
| CN204992754U (en) | Energy -conserving emergency lighting system | |
| CN204491735U (en) | A kind of remote auto is fetched water system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20170620 |