CN202218062U - Automatic switching circuit used for switching between main power source and standby power source of coal mine draught fan - Google Patents
Automatic switching circuit used for switching between main power source and standby power source of coal mine draught fan Download PDFInfo
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- CN202218062U CN202218062U CN2011203128831U CN201120312883U CN202218062U CN 202218062 U CN202218062 U CN 202218062U CN 2011203128831 U CN2011203128831 U CN 2011203128831U CN 201120312883 U CN201120312883 U CN 201120312883U CN 202218062 U CN202218062 U CN 202218062U
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Abstract
The utility model provides an automatic switching circuit used for switching between a main power source and a standby power source of a coal mine draught fan. The automatic switching circuit includes a main power source vacuum electromagnetic start-up circuit and a standby power source vacuum electromagnetic start-up circuit. A thirteen connecting pin of the main power source vacuum electromagnetic start-up circuit connects with a tenth connecting pin of the standby power source vacuum electromagnetic start-up circuit. A twelfth connecting pin of the main power source vacuum electromagnetic start-up circuit connects with an eleventh connecting pin of the standby power source vacuum electromagnetic start-up circuit. A tenth connecting pin of the main power source vacuum electromagnetic start-up circuit connects with a thirteenth connecting pin of the standby power source vacuum electromagnetic start-up circuit. An eleventh connecting pin of the main power source vacuum electromagnetic start-up circuit connects with a twelfth connecting pin of the standby power source vacuum electromagnetic start-up circuit. In the scheme, the automatic switching between the main power source vacuum electromagnetic start-up circuit and the standby power source vacuum electromagnetic start-up circuit is realized through four connection lead and the connecting pins in a wire connecting chamber. The automatic switching circuit used for switching between the main power source and the standby power source of the coal mine draught fan is stable and reliable, has a low fault rate and a good switching effect in the automatic switching.
Description
Technical field
The utility model relates to the coal mine equipment field, refers in particular to a kind of automatic switch-over circuit that is used for the active and standby power supply of colliery blower fan.
Background technology
China's coal-mine mainly is that pit mining accounts for 95%, and condition of coal seam occurrence is complicated and changeable and follow gas; China's average mining depth in big-and-middle-sized colliery is 456m, and 28.4% the coal mining degree of depth is greater than 600m.Along with mining depth increases the result who is brought is that coal-bed gas pressure increases, and gas permeability of coal seam reduces, and coal-bed gas is difficult for extraction; Along with the exploitation in coal seam, the discharge capacity of gas is increasing, speed is also more and more faster, the also corresponding increase of the demand of ventilation quantity.Mine ventilation is the respiratory system of Coal Production, be solve coal mine gas the most basically, effective method, therefore, the reliability of ventilating system is to ensureing that coal mine production safety is crucial.And the matter of utmost importance of strengthening Safety of Coal Mine Production solves mine exactly and passes through problem; Counter-rotary local fan is the indispensable safety means that ventilate under the coal mine; When breaking down power failure when the main station portion ventilation blower that places underground work or for the vacuum electromagnetic starter of its power supply; Just press for subsequent use booster and start operation rapidly, to satisfy the ventilation requirement under the coal mine.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, and a kind of automatic switch-over circuit that can start subsequent use booster rapidly is provided.
For realizing above-mentioned purpose; The technical scheme that the utility model provided is: a kind of automatic switch-over circuit that is used for the active and standby power supply of colliery blower fan; It includes main power source vacuum electromagnetic start-up circuit and stand-by power supply vacuum electromagnetic start-up circuit; Wherein, the 13 connecting pin of main power source vacuum electromagnetic start-up circuit is connected with the tenth connecting pin of stand-by power supply vacuum electromagnetic start-up circuit; The 12 connecting pin of main power source vacuum electromagnetic start-up circuit is connected with the tenth a connection pin of stand-by power supply vacuum electromagnetic start-up circuit; The tenth connecting pin of main power source vacuum electromagnetic start-up circuit is connected with the 13 connecting pin of stand-by power supply vacuum electromagnetic start-up circuit; The tenth a connection pin of main power source vacuum electromagnetic start-up circuit is connected with the 12 connecting pin of stand-by power supply vacuum electromagnetic start-up circuit.
Described main power source vacuum electromagnetic start-up circuit, stand-by power supply vacuum electromagnetic start-up circuit include first intermediate relay ZJ, the second auxiliary relay QJ, the first vacuum contactor CJ1, diverter switch, start button QA, stop button TA, the tenth connecting pin, the tenth a connection pin, the 12 connecting pin, the 13 connecting pin; Wherein, The tenth a connection pin is connected with the first vacuum contactor auxiliary contact, one end, and the first vacuum contactor auxiliary contact other end is connected with the tenth connecting pin; The 12 connecting pin 12# and the 12 diverter switch 12; The 12 diverter switch 12 other ends are connected with start button QA one end, the start button QA other end be connected with transformer again after the second auxiliary relay QJ normally opened contact is connected, transformer is connected with three phase mains; The 13 connecting pin is connected with diverter switch one end, the diverter switch other end be connected with first vacuum contactor, protector respectively again after the second auxiliary relay QJ coil is connected; Protector is connected with three phase mains.
The utility model is after having adopted such scheme, and active and standby power supply vacuum electromagnetic start-up circuit does not have active and standby branch before starting operation, only confirm wherein one start shipment operation earlier after, confirm that just another does not start the starter that moves is subsequent use starter.The automatic switchover of main power source vacuum electromagnetic start-up circuit of this programme and stand-by power supply vacuum electromagnetic start-up circuit is to link leads through four in the wire connection cavity to realize changing with connecting pin, and is reliable and stable during its automatic switchover, failure rate is low, conversion effect good.
Description of drawings
Fig. 1 is the electrical schematic diagram of the utility model.
Embodiment
Below in conjunction with institute's drawings attached the utility model is described further; The preferred embodiment of the utility model is: referring to accompanying drawing 1; The described automatic switch-over circuit of present embodiment includes main power source vacuum electromagnetic start-up circuit 1 and stand-by power supply vacuum electromagnetic start-up circuit 2; Wherein, the 13 connecting pin 13# of main power source vacuum electromagnetic start-up circuit 1 is connected with the tenth connecting pin 101# of stand-by power supply vacuum electromagnetic start-up circuit 2; The 12 connecting pin 12# of main power source vacuum electromagnetic start-up circuit 1 is connected with the tenth a connection pin 111# of stand-by power supply vacuum electromagnetic start-up circuit 2; The tenth connecting pin 10# of main power source vacuum electromagnetic start-up circuit 1 is connected with the 13 connecting pin 131# of stand-by power supply vacuum electromagnetic start-up circuit 2; The tenth a connection pin 11# of main power source vacuum electromagnetic start-up circuit 1 is connected with the 12 connecting pin 121# of stand-by power supply vacuum electromagnetic start-up circuit 2.Described main power source vacuum electromagnetic start-up circuit 1, stand-by power supply vacuum electromagnetic start-up circuit 2 include first intermediate relay ZJ, start button QA, the first vacuum contactor CJ1, the 8th diverter switch 8, start button QA, stop button TA, the tenth connecting pin 10#, the tenth a connection pin 11#, the 12 connecting pin 12#, the 13 connecting pin 13#; Wherein, The tenth a connection pin 11# is connected with the first vacuum contactor CJ1 auxiliary contact, one end, and the first vacuum contactor CJ1 auxiliary contact other end is connected with the tenth connecting pin 10#; The 12 connecting pin 12# is connected with the 12 diverter switch 12 1 ends; The 12 diverter switch 12 other ends are connected with start button one end, the start button other end be connected with transformer B again after start button QA normally opened contact is connected, transformer B is connected with three phase mains; The 13 connecting pin 13# is connected with the 13 diverter switch 13 1 ends, the 13 diverter switch 13 other ends be connected with the second vacuum contactor CJ2, protector JDB respectively again after start button QA coil is connected; Protector JDB is connected with three phase mains.The operation principle of present embodiment is: the toggle switch in the vacuum electromagnetic start-up circuit of active and standby power supply is all beaten to switching position (be among Fig. 1 the 8th diverter switch all beat at the circuit link position); Close behind the isolation conversion switch of vacuum electromagnetic start-up circuit of active and standby power supply; Press main electromagnetic starter QA start button; The main vacuum first intermediate relay ZJ coil electricity, its normally opened contact adhesive and self-insurance, the meanwhile main first vacuum contactor CJ1 coil electricity; Its normally opened contact adhesive, main vacuum electromagnetic starter gets into running status.At this moment; The start button QA of subsequent use vacuum electromagnetic starter is because of the conducting of the main first vacuum contactor CJ1 normally opened contact; And the tenth a connection pin 11# of the 13 connecting pin 13# of the tenth connecting pin 10# through main power source vacuum electromagnetic start-up circuit 1 and stand-by power supply vacuum electromagnetic start-up circuit 2 and main power source vacuum electromagnetic start-up circuit 1 with being connected of the 12 connecting pin 12# of stand-by power supply vacuum electromagnetic start-up circuit 2 get electric adhesive, its normally-closed contact disconnection.The result is the first intermediate relay ZJ coil electricity of subsequent use vacuum electromagnetic starter; Its normally opened contact adhesive and self-insurance; Vacuum contactor in the subsequent use vacuum electromagnetic starter is then because of the start button QA adhesive of subsequent use vacuum electromagnetic starter; Its normally-closed contact breaks off and can't connect conduction, and therefore subsequent use vacuum electromagnetic starter can not get into running status.When breaking down shutdown when main station portion ventilation blower or for the vacuum electromagnetic starter of its power supply, its main first vacuum contactor CJ1 dead electricity, normally opened contact breaks off; Vacuum electromagnetic starter is out of service, the start button QA dead electricity in the meanwhile subsequent use vacuum electromagnetic starter, and its normally opened contact breaks off; Vacuum contactor in the normally-closed contact adhesive, subsequent use vacuum electromagnetic starter gets electric, its normally opened contact adhesive; Subsequent use vacuum electromagnetic starter gets into running status, and vice versa.
The embodiment of the above is the preferred embodiment of the utility model only, is not the practical range that limits the utility model with this, so the variation that all shapes according to the utility model, principle are done all should be encompassed in the protection range of the utility model.
Claims (2)
1. automatic switch-over circuit that is used for the active and standby power supply of colliery blower fan; It is characterized in that: it includes main power source vacuum electromagnetic start-up circuit (1) and stand-by power supply vacuum electromagnetic start-up circuit (2); Wherein, the 13 connecting pin (13#) of main power source vacuum electromagnetic start-up circuit (1) is connected with the tenth connecting pin (101#) of stand-by power supply vacuum electromagnetic start-up circuit (2); The 12 connecting pin (12#) of main power source vacuum electromagnetic start-up circuit (1) is connected with the tenth a connection pin (111#) of stand-by power supply vacuum electromagnetic start-up circuit (2); The tenth connecting pin (10#) of main power source vacuum electromagnetic start-up circuit (1) is connected with the 13 connecting pin (131#) of stand-by power supply vacuum electromagnetic start-up circuit (2); The tenth a connection pin (11#) of main power source vacuum electromagnetic start-up circuit (1) is connected with the 12 connecting pin (121#) of stand-by power supply vacuum electromagnetic start-up circuit (2).
2. a kind of automatic switch-over circuit that is used for the active and standby power supply of colliery blower fan according to claim 1; It is characterized in that: main power source vacuum electromagnetic start-up circuit (1) includes first auxiliary relay (ZJ), start button (QA), stop button (TA), first vacuum contactor (CJ1), the 8th diverter switch (8), second auxiliary relay (QJ), the tenth connecting pin (10#), the tenth a connection pin (11#), the 12 connecting pin (12#), the 13 connecting pin (13#); Wherein, The tenth a connection pin (11#) is connected with first vacuum contactor (CJ1) end, and first vacuum contactor (CJ1) other end is connected with the tenth connecting pin (10#); The 12 connecting pin (12#) is connected with the 12 diverter switch (12) one ends; The 12 diverter switch (12) other end is connected with start button (QA) end, start button (QA) other end be connected with transformer (B) again after second auxiliary relay (QJ) is connected, transformer (B) is connected with three phase mains; The 13 connecting pin (13#) is connected with the 13 diverter switch (13) one ends, the 13 diverter switch (13) other end be connected with first vacuum contactor (CJ1), protector (JDB) respectively again after second auxiliary relay (QJ) coil is connected; Protector (JDB) is connected with three phase mains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203128831U CN202218062U (en) | 2011-08-25 | 2011-08-25 | Automatic switching circuit used for switching between main power source and standby power source of coal mine draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203128831U CN202218062U (en) | 2011-08-25 | 2011-08-25 | Automatic switching circuit used for switching between main power source and standby power source of coal mine draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202218062U true CN202218062U (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203128831U Expired - Fee Related CN202218062U (en) | 2011-08-25 | 2011-08-25 | Automatic switching circuit used for switching between main power source and standby power source of coal mine draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202218062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795333A (en) * | 2017-12-07 | 2018-03-13 | 四川广旺能源发展（集团）有限责任公司赵家坝煤矿 | A kind of colliery local ventilation system |
-
2011
- 2011-08-25 CN CN2011203128831U patent/CN202218062U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795333A (en) * | 2017-12-07 | 2018-03-13 | 四川广旺能源发展（集团）有限责任公司赵家坝煤矿 | A kind of colliery local ventilation system |
| CN107795333B (en) * | 2017-12-07 | 2024-03-08 | 四川川煤华荣能源有限责任公司赵家坝煤矿 | Local ventilation system for coal mine |
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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: 20120509 Termination date: 20140825 |
|
| EXPY | Termination of patent right or utility model |