CN202535147U - Mining explosion-suppression type double-power supply switching control box - Google Patents
Mining explosion-suppression type double-power supply switching control box Download PDFInfo
- Publication number
- CN202535147U CN202535147U CN2012201955798U CN201220195579U CN202535147U CN 202535147 U CN202535147 U CN 202535147U CN 2012201955798 U CN2012201955798 U CN 2012201955798U CN 201220195579 U CN201220195579 U CN 201220195579U CN 202535147 U CN202535147 U CN 202535147U
- Authority
- CN
- China
- Prior art keywords
- power supply
- main
- plc controller
- auxiliary
- transformer
- 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- Withdrawn - After Issue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
Images
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model belongs to the electric control technology, relating to a mining explosion-suppression type double-power supply switching control box. The mining explosion-suppression type double-power supply switching control box includes a main transformer connected to a main power supply and an auxiliary transformer connected to an auxiliary power supply; after controlled by a main relay of the main power supply and an auxiliary relay of the auxiliary power supply respectively, one position of a secondary output end of the main transformer and one position of a secondary output end of the auxiliary transformer are both connected with a load through a protector; the other position of the secondary output end of the main transformer and the other position of the secondary output end of the auxiliary transformer are connected with a PLC controller through on-off detection circuits of the main power supply and the auxiliary power supply; the PLC controller is connected to input ends of the main relay and the auxiliary relay; the on-off detection circuit of the main power supply is provided with a manual switching button used for switching the main power supply and the auxiliary power supply; and the on-off detection circuit of the auxiliary power supply is provided with an output disconnection button. The mining explosion-suppression type double-power supply switching control box provided by the utility model has the advantages of convenient installation, simple operation, reliability and safety. According to the mining explosion-suppression type double-power supply switching control box, through combination of traditional relay control and the modern advanced programmable logic controller, stable operation of a system can be ensured, and complex wiring of equipment can be greatly reduced at the same time.
Description
Technical field
The invention belongs to the application of Electrical Control Technology, relate to a kind of downhole monitoring equipment duplicate supply supply arrangement, i.e. flame-proof mine duplicate supply switching controls case at mining electric field.
Background technology
Underground substation formula safety monitoring system substation all adopts the power supply of single circuit power supply system at present; Though the substation storage battery can guarantee the self discharge power supply more than 2 hours after electric power system has a power failure, the substation power supply is many and the digging power supply is shared, and it is big influenced by the digging power supply; In case the mining system interruption duration surpasses more than 2 hours; The Monitor Sub-Station of Less storage battery will occur discharging fully and cause the supervisory control system locking to quit work, and the substation storage battery capacity that discharge and recharge meeting shortening storage battery relevant, frequent with discharging and recharging number of times in useful life; Correspondingly shortened the storage battery self-powered time, totally unfavorable to safety.
Domestic present supply power mode to supervisory control system has two kinds, and a kind of mode is the special circuit power supply, and this mode need be laid private cable from ground toward the down-hole; Though avoided the influence of down-hole mining power supply; But laying-out is long, and the line footpath is bigger, and voltage drop is big; Still be single circuit power supply, the power down phenomenon still is not resolved.Another kind of mode is exactly the underground substation single circuit power supply that generally adopts at present, and it is bigger influenced by the digging power supply, and the supervisory control system power down is frequent.More external coal mining Country Monitor systems adopt bus type more, dedicated transformer and special circuit power supply, and it is more stable to supply power, and supervisory control system power down phenomenon is less relatively.
Summary of the invention
The present invention provides a kind of easy to use, reliable flame-proof mine duplicate supply switching controls case of power supply in order to remedy the deficiency of prior art.
The present invention realizes through following technical scheme:
Flame-proof mine duplicate supply switching controls case of the present invention; Its special character is: comprise the main transformer that connects main power source and the teaser transformer of auxiliary connection power supply, a place of the secondary output end of major and minor transformer connects load through protector respectively jointly after the secondary relay control of the main relay of main power source, auxiliary power; Another place of the secondary output end of major and minor transformer connects the PLC controller respectively behind major and minor on/off testing circuit; The PLC controller connects the input of major and minor relay; Main power source break-make testing circuit is provided with the manual switchover button that is used to switch major and minor power supply, and auxiliary power break-make testing circuit is provided with the output cut-off push button.
Described main power source break-make testing circuit comprises the main rectifier bridge through another place of the secondary output end of fuse connection main transformer; Be connected with energy-absorbing resistance between main rectifier bridge two outputs; One of them output connects the PLC controller through main relay; Another is connected the PLC controller through diode with the output cut-off push button to of another output through diode connection PLC controller, and the manual switching push button of warp connects the PLC controller again; Auxiliary power break-make testing circuit comprises the secondary rectifier bridge through another place of the secondary output end of fuse auxiliary connection transformer; Be connected with energy-absorbing resistance between secondary rectifier bridge two outputs; One of them output connects the PLC controller through secondary relay; Another is connected the PLC controller through diode with the output cut-off push button to of another output through diode connection PLC controller, and one directly connects the PLC controller again.
The invention has the beneficial effects as follows, easy for installation, simple to operate, safe and reliable.It when guaranteeing system stable operation, has significantly reduced the loaded down with trivial details wiring of complex equipments through traditional relay control and the mode that modern advanced programmable logic controller (PLC) combines.This invention can be accomplished judgement and analysis to the break-make of the major and minor two-way power supply in outside through a programmable logic controller (PLC), and then realizes the automatic switchover between the major-minor power supply.This invention simultaneously can also be according to the difference of load equipment, revises partial function through programming instruction, and the realization time is regulated and to the Optimal Control of load end.The duplicate supply that finally reaches reliable and stable automaticallyes switch, to realize dual power supplies such as underground monitoring substation and self closing door.This invention simultaneously has manual switchover breaks off and the operating state Presentation Function with output, and very convenient underground work personnel grasp the operating state of this equipment and at any time to the service work of load that this equipment connects.Under the situation that does not influence other loaded work pieces, accomplish Monitor Sub-Station of Less and other are inserted the power failure maintenance work of the load equipment of this flame-proof mine duplicate supply switching controls case.
Description of drawings
Fig. 1 is a control cabinet profile front view, and Fig. 2 is a control flow chart, and Fig. 3 is an electrical schematic diagram.Fig. 4 is a control cabinet profile rearview.
Among the figure, 1 main transformer, 2 teaser transformers, 3,4 fuses, 5 main rectifier bridges; 6 secondary rectifier bridges, 7,8 energy-absorbing resistance, 9,10 diodes, 11 manual switchover buttons, 12 output cut-off push buttons; 13 PLC controllers, 14 main relays, 15 secondary relays, 16 protectors, 17 wiring place; 18 casings, 19 line ball horn mouths, 20 buttons, 21 observation windows, 22 earth studs.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
Flame-proof mine duplicate supply switching controls case of the present invention; Comprise the main transformer 1 that connects main power source and the teaser transformer 2 of auxiliary connection power supply, a place of the secondary output end of major and minor transformer connects loads through protector 16 respectively jointly after secondary relay 15 controls of the main relay 14 of main power source, auxiliary power; Another place of the secondary output end of major and minor transformer connects PLC controller 13 respectively behind major and minor on/off testing circuit; The PLC controller connects the input of major and minor relay 14,15; Main power source break-make testing circuit is provided with the manual switchover button 11 that is used to switch major and minor power supply, and auxiliary power break-make testing circuit is provided with output cut-off push button 12.
Described main power source break-make testing circuit comprises the main rectifier bridge 5 through another place of the secondary output end of fuse 3 connection main transformers 1; Be connected with energy-absorbing resistance 7 between main rectifier bridge two outputs; One of them output connects PLC controller 13 through main relay 14; Another is connected the PLC controller through diode with the output cut-off push button to of another output through diode 9 connection PLC controllers, and the manual switching push button 11 of warp connects the PLC controllers again; Auxiliary power break-make testing circuit comprises the secondary rectifier bridge 6 through another place of the secondary output end of fuse 4 auxiliary connection transformers 2; Be connected with energy-absorbing resistance 8 between secondary rectifier bridge two outputs; One of them output connects PLC controller 13 through secondary relay 15; Another is connected the PLC controller through diode 10 with output cut-off push button 12 to of another output through diode 10 connection PLC controllers, and one directly connects the PLC controller again.
The material impact that the present invention is directed to the frequent power down of underground monitoring substation and safety in production is produced sets out, and makes full use of the existing double-cricuit supply in down-hole, utilizes modern electrical control art designs to go out duplicate supply automatic switchover control cabinet.This control cabinet can be contained voltage in the AC18-36V scope according to the voltage class of monitoring equipment under the existing well; Can reliablely and stablely power supply supply be provided for the downhole monitoring device end; Thereby overcome the frequent influence that has a power failure supervisory control system is caused of digging, guarantee the even running of supervisory control system.Not only the stable operation to safety monitoring system has reliable power supply guarantee, can also press observation system, personnel location system and the main continuous power supply of elevator system that reliable guarantee is all arranged to the ore deposit, down-hole.
To outstation wiring situation, be mostly that a feeding switch promptly to the outstation power supply, gives other power devices again according to present down-hole electric substation.When the staff overhauls outstation or during other work, needs to break off the feeding switch control loop, cause that other equipment also will cut off the power supply except the outstation outage, have a strong impact on underground work efficient and fail safe.The present invention is directed to this phenomenon, when design explosion-proof type duplicate supply switching controls case, designed manual switchover and output break function button.Whether the underground work personnel can regularly detect this equipment through manual switchover button switching major-minor power supply can normally realize handoff functionality; This equipment is connected between outstation and the upper level power supply; When the staff need carry out service work to outstation; Just can break off the power supply of outstation through the output cut-off push button; Under the situation that does not influence other equipment works, accomplish service work, convenient and swift, improved operating efficiency and fail safe greatly.In addition, this invention also is designed with working station indicator, comprises that indication of major-minor power work state and auxiliary power fault show, safe and reliable, operating state comes into plain view.
The present invention when guaranteeing system stable operation, has significantly reduced the loaded down with trivial details wiring of complex equipments through traditional relay control and the mode that modern advanced programmable logic controller (PLC) combines.This invention can be accomplished judgement and analysis to the break-make of the major and minor two-way power supply in outside through a programmable logic controller (PLC), and then realizes the automatic switchover between the major-minor power supply.This invention simultaneously can also be according to the difference of load equipment, revises partial function through programming instruction, and the realization time is regulated and to the Optimal Control of load end.The duplicate supply that finally reaches reliable and stable automaticallyes switch, to realize dual power supplies such as underground monitoring substation and self closing door.This invention simultaneously has manual switchover breaks off and the operating state Presentation Function with output, and very convenient underground work personnel grasp the operating state of this equipment and at any time to the service work of load that this equipment connects.Under the situation that does not influence other loaded work pieces, accomplish Monitor Sub-Station of Less and other are inserted the power failure maintenance work of the load equipment of this flame-proof mine duplicate supply switching controls case.
Among Fig. 3; Transformer 1,2 for major and minor power supply; Input voltage can be for exchanging 1140V or 660V; One place of the secondary output end of this transformer connects the control relay 14,15 of major and minor power supply, and another place connects the rectifying device 5,6 of control loop, wherein protects the safeties 3,4 of control loop in addition; Energy-absorbing resistance 7,8, the automatic switchover time of shortening major-minor power supply; Unidirectional conducting diode 9,10 realizes that Programmable Logic Controller 13 does not cut off the power supply, and monitors major-minor on/off situation simultaneously; Manual switchover button 11 and output cut-off push button 12; Output loop protector 16; The final load of equipment inserts through wiring place 17, is followed successively by major and minor loop and powers on, and equipment gets into normal operating conditions.
Flame-proof mine duplicate supply switching controls case of the present invention, its casing 18 outsides are provided with line ball horn mouth 19, observation window 21, button 20, earth stud 22.
Use the technical staff of this equipment only need insert major and minor two-way power supply and draw output cable, can accomplish installation connection work to major and minor power supply electrifying successively then this equipment according to the equipment wiring schematic diagram to load equipment.Through manual switchover and output cut-off push button the operation and the function of equipment are carried out test job after powering on.The whole machine installation debugging finishes.Easy for installation, simple to operate, safe and reliable.
Claims (2)
1. flame-proof mine duplicate supply switching controls case; It is characterized in that: comprise the main transformer that connects main power source and the teaser transformer of auxiliary connection power supply, a place of the secondary output end of major and minor transformer connects load through protector respectively jointly after the secondary relay control of the main relay of main power source, auxiliary power; Another place of the secondary output end of major and minor transformer connects the PLC controller respectively behind major and minor on/off testing circuit; The PLC controller connects the input of major and minor relay; Main power source break-make testing circuit is provided with the manual switchover button that is used to switch major and minor power supply, and major and minor on/off testing circuit is provided with the output cut-off push button.
2. flame-proof mine duplicate supply switching controls case according to claim 1; It is characterized in that: main power source break-make testing circuit comprises the main rectifier bridge through another place of the secondary output end of fuse connection main transformer; Be connected with energy-absorbing resistance between main rectifier bridge two outputs; One of them output connects the PLC controller through main relay; Another is connected the PLC controller through diode with the output cut-off push button to of another output through diode connection PLC controller, and the manual switching push button of warp connects the PLC controller again; Auxiliary power break-make testing circuit comprises the secondary rectifier bridge through another place of the secondary output end of fuse auxiliary connection transformer; Be connected with energy-absorbing resistance between secondary rectifier bridge two outputs; One of them output connects the PLC controller through secondary relay; Another is connected the PLC controller through diode with the output cut-off push button to of another output through diode connection PLC controller, and one directly connects the PLC controller again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201955798U CN202535147U (en) | 2012-05-04 | 2012-05-04 | Mining explosion-suppression type double-power supply switching control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201955798U CN202535147U (en) | 2012-05-04 | 2012-05-04 | Mining explosion-suppression type double-power supply switching control box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202535147U true CN202535147U (en) | 2012-11-14 |
Family
ID=47136304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201955798U Withdrawn - After Issue CN202535147U (en) | 2012-05-04 | 2012-05-04 | Mining explosion-suppression type double-power supply switching control box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202535147U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684295A (en) * | 2012-05-04 | 2012-09-19 | 济南嘉宏科技有限责任公司 | Mining flameproof dual-power switching control box |
| CN104486937A (en) * | 2014-12-31 | 2015-04-01 | 广州市地下铁道总公司 | Auxiliary power box |
| CN105449839A (en) * | 2015-12-30 | 2016-03-30 | 中国能源建设集团广东省电力设计研究院有限公司 | Isolated type high-speed double-power-supply switching device |
-
2012
- 2012-05-04 CN CN2012201955798U patent/CN202535147U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684295A (en) * | 2012-05-04 | 2012-09-19 | 济南嘉宏科技有限责任公司 | Mining flameproof dual-power switching control box |
| CN102684295B (en) * | 2012-05-04 | 2014-04-16 | 济南嘉宏科技有限责任公司 | Mining flameproof dual-power switching control box |
| CN104486937A (en) * | 2014-12-31 | 2015-04-01 | 广州市地下铁道总公司 | Auxiliary power box |
| CN105449839A (en) * | 2015-12-30 | 2016-03-30 | 中国能源建设集团广东省电力设计研究院有限公司 | Isolated type high-speed double-power-supply switching device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101428635B (en) | Electronic apparatus and method for controlling three phase current point switch | |
| CN102684295B (en) | Mining flameproof dual-power switching control box | |
| CN105655879B (en) | The voltage arrangement of 110 kilovolts of system busbar combining unit duplicate system retrofits of intelligent substation double bus scheme mode | |
| CN110794293A (en) | Method for detecting automatic nuclear capacity switch state of storage battery | |
| CN202535147U (en) | Mining explosion-suppression type double-power supply switching control box | |
| CN211556956U (en) | High-reliability direct-current power supply for transformer substation | |
| CN204130930U (en) | A kind of remote operation controls movable switching cabinet | |
| CN106451749B (en) | Emergency protection device and protection method for traction substation control protection system under abnormal working condition | |
| CN103762711A (en) | Coal mine system power source switching method and device | |
| CN204651944U (en) | Based on the generator connecting in parallel with system state automatic discriminating gear of half as much again wiring | |
| CN109462273A (en) | A kind of mining flameproof dual-power switching control box | |
| CN104967206A (en) | Coal mine low voltage double loop dual supply permanent magnet feed interconnection switch operating circuit | |
| CN205693433U (en) | The redundant backup circuit of ups power system | |
| CN202749898U (en) | Automatic switching device of two alternating-current power supplies of direct-current system | |
| CN202535149U (en) | Double-power supply automatic-switching integrated control box | |
| CN211127297U (en) | AC/DC screen power supply circuit | |
| CN104022492A (en) | Auxiliary short circuit protection device for low-voltage power supply device of long-distance mine laneway | |
| CN205422818U (en) | NULL portable blower motor switch warning assembly | |
| CN211986737U (en) | Linkage module box configuration structure for fire alarm of converter station | |
| CN105422178A (en) | Flame-proof and intrinsically safe local fan motor switch warning assembly | |
| CN211151604U (en) | Mining explosion-proof and intrinsically safe dual-power dual-loop lighting control device | |
| CN203562833U (en) | Automatic dual-power-supply switching device for air blowers | |
| RU104390U1 (en) | DC SHIELD (OPTIONS) | |
| CN202721433U (en) | Leakage protection and power supply recovery apparatus | |
| CN205805978U (en) | Electromagnetic starter for coal mine blower system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121114 Effective date of abandoning: 20140416 |
|
| RGAV | Abandon patent right to avoid regrant |