CN219643318U - Mining flameproof and intrinsically safe high-voltage combined vacuum power distribution device - Google Patents

Abstract

The utility model relates to the technical field of mining power distribution equipment, in particular to a mining flameproof and intrinsically safe high-voltage combined vacuum power distribution device which comprises an explosion-proof shell, wherein the explosion-proof shell is of a cuboid structure which is arranged in a hollow mode, the interior of the explosion-proof shell is divided into a front cavity and a rear cavity, the front cavity and the rear cavity are separated through a partition plate, a front door of a breaker cavity is arranged on the front side of each breaker cavity, and one side of the front door of the breaker cavity is hinged to the outer side wall of the explosion-proof shell through a hinge. The front cavity adopts the structural design of an upper layer and a lower layer, is divided into 4 breaker cavities at the upper layer and 4 breaker cavities at the lower layer, can effectively realize the uniform layout of the front cavity, and meanwhile, the 8 breaker cavities are arranged into four functional units of a wire inlet unit, a communication unit and an isolation unit according to the functional distribution of the internal elements of the front cavity, so that the reasonable design and the use safety of the functions of the whole combined distribution device are effectively ensured when the front cavity is safely used under a mine.

Description

Mining flameproof and intrinsically safe high-voltage combined vacuum power distribution device

Technical Field

The utility model relates to the technical field of mining power distribution equipment, in particular to a mining flameproof and intrinsically safe high-voltage combined vacuum power distribution device.

Background

The development of mining power distribution equipment in recent years has led to many advances, and the electrical automation technology of coal mines reaches a certain level.

The traditional underground coal mine high-voltage vacuum power distribution device is generally similar to the mining explosion-proof high-voltage vacuum power distribution device disclosed in the patent document with the patent application number of CN202210686146.0, a cabinet door is hinged to the left side of a main structure cabinet body (1), a power distribution cabinet body electrical element is arranged in the cabinet body, an air cavity is formed in the upper side of the cabinet body, and an exhaust mechanism is arranged in the air cavity; the exhaust mechanism further comprises a connecting rod, an extrusion block, an air bag, a rotating mechanism and a connecting hole, wherein the right side of the sliding block is fixedly connected with the left end of the connecting rod, the right end of the connecting rod penetrates through the cabinet body and extends to the inside of the air cavity and is fixedly connected with the left side of the extrusion block, the connecting hole is formed in the middle of the extrusion block, a first one-way valve is arranged in the inside of the connecting hole, the input side of the first one-way valve is the left side, the right side of the extrusion block is fixedly connected with the left side of the air bag, the outer wall of the air bag is fixedly connected with the inner wall of the air cavity, the lower side of the air cavity is communicated with the inside of the cabinet body through an opening, the rotating mechanism is arranged in the inside of the opening, the inside left side of the air cavity is communicated with the inside of the cabinet body through the connecting hole, and the second one-way valve is arranged in the inside of the connecting hole, and the input side of the second one-way valve is the lower side.

As can be seen from the above patents and the prior art in the industry, current high voltage vacuum power distribution devices are typically controlled, protected and measured by power supply systems that do not directly ground the three phase ac neutral point. The intelligent degree of the device in the prior art is relatively low, meanwhile, the installation difficulty under the mine is high, the safety performance during use is poor, and the development requirement of an intelligent power supply system of a mine cannot be met at present.

In addition, in the prior application of the applicant, the external appearance design patent application with the application number of CN202130813973.8, a preliminary external appearance improvement is performed on the vacuum power distribution device, and the purpose of the present utility model is to further ensure the improvement of the internal performance of the vacuum power distribution device when the vacuum power distribution device works under actual mine, so the present utility model provides a new improvement scheme for the internal structure of the vacuum power distribution device, so as to ensure the efficient work under the mine safely and efficiently, and solve the problems in the prior art better.

Disclosure of Invention

The utility model aims to solve one of the technical problems, and adopts the following technical scheme: the mining flameproof and intrinsically safe high-voltage combined vacuum power distribution device comprises an explosion-proof shell, wherein the explosion-proof shell is of a cuboid structure which is arranged in a hollow mode, the interior of the explosion-proof shell is divided into a front cavity and a rear cavity, the front cavity and the rear cavity are separated by a partition plate, a plurality of circuit breaker cavities which are arranged at intervals are arranged on the left side of the front cavity, a centralized control cavity and a secondary wiring cavity are arranged on the right side of the front cavity, the rear cavity is sequentially divided into an upper cable chamber, an upper wiring chamber, a bus chamber, a lower wiring chamber and a lower cable chamber from top to bottom, a front door of the circuit breaker cavity is arranged on the front side of each circuit breaker cavity, one side of the front door of the circuit breaker cavity is hinged to the outer side wall of the explosion-proof shell through a hinge, and a handcart type circuit breaker and an isolation vehicle are arranged in each circuit breaker cavity; the breaker cavities are respectively distributed and arranged into four functional units, namely a wire inlet unit, a feeder unit, a communication unit and an isolation unit.

In any of the above schemes, it is preferable that each breaker cavity is in a shape of upper and lower layers and is an independent explosion-proof cavity; and each explosion-proof cavity is connected with other cavities by adopting a mining explosion-proof connecting terminal.

In any of the above schemes, it is preferable that a high-voltage charging device observation window, a breaker on-off observation window, a manual on-off button and a handcart operation hole are sequentially installed on the front door of each breaker cavity from top to bottom.

In any of the above schemes, preferably, a high-voltage live display, a camera and a travel switch are further installed in each breaker cavity; the camera is arranged at the position of the top in the breaker cavity at the corresponding position, which is close to the rear cavity, so that the purpose of conveniently observing the position of the moving contact of the breaker is achieved; the travel switch is arranged at the position of the corresponding breaker cavity close to the flange at the corresponding position, and when the front door of the breaker cavity is opened, the travel switch is disconnected, the power supply of the unit is cut off, and the personal safety is protected.

In any of the above schemes, preferably, the partition board at the corresponding position of each breaker cavity and the rear cavity is provided with an isolation socket, an explosion-proof wiring terminal and an explosion-proof net wire through-wall terminal;

the bottom of each breaker cavity is provided with a guide rail positioning device, and the matched movable contact and the fixed contact are accurately overlapped through the operation of the guide rail positioning device;

after the handcart type circuit breaker is rocked into a working position, a circuit breaker contact is connected with an isolation socket;

the control line of the circuit breaker is connected to the centralized control cavity through an explosion-proof connecting terminal;

the camera is connected to the network port of the exchanger through the explosion-proof network cable through-wall terminal.

In any of the above schemes, it is preferable that the central control cavity is divided into an upper part and a lower part by a partition board, wherein the upper part of the central control cavity is provided with required secondary control elements, the secondary control elements comprise a temperature collector, a PLC, a handcart controller, a relay, a management type switch and a comprehensive protection device, a line slot is arranged on the left side, a right side door is provided with a comprehensive protection display screen, an electric energy meter, a circuit breaker and a contactor, a front door of the central control cavity is sequentially provided with a display screen window and an intrinsic safety control button from top to bottom, and the inner side of the front door is provided with a display screen and an intrinsic safety board;

the temperature collector is communicated with the PLC through an RS485 communication line, and the PLC reads the temperature value in the temperature collector and uploads the temperature value to the display screen;

the comprehensive protection display screen is connected to the comprehensive protection through a network cable, and comprehensive protection parameter setting and state reading are realized through the comprehensive protection display screen;

the electric energy meter is connected to a network port of the switch through a network cable, each parameter of the electric energy is directly read from the electric energy meter, and the electric energy meter is set through keys;

the lower half part of the centralized control cavity is a transformer room.

In any of the above schemes, it is preferable that the secondary wiring cavity is located at the upper right of the centralized control cavity, and is isolated by a partition board provided with an explosion-proof wiring terminal to be independent explosion-proof cavities, and remote control and communication are realized through a right-side installed low-voltage cable lead-in device.

In any of the above schemes, it is preferable that the transformer chamber is located below the centralized control chamber and is isolated into an independent space by a partition board, and a voltage transformer and a power transformer are built in the transformer chamber for providing voltage signals for metering and protecting the whole set of device, and a working power supply.

In any of the above schemes, preferably, the intrinsic safety control button is connected with the intrinsic safety board of the main chamber through an intrinsic safety wiring cavity and an explosion-proof through-wall binding post.

In any of the above schemes, it is preferable that the upper cable chamber, the upper wiring chamber, the bus bar chamber, the lower wiring chamber and the lower cable chamber are isolated from each other between the chambers of the rear chamber by a partition plate and an insulating plate; wherein, the cable chamber is used for placing in-out cables, and the wiring chamber is provided with a piezoresistor, a current transformer and a wireless temperature sensor; configuring a temperature sensor at a key temperature measuring point, and monitoring the temperature of the device in real time; the upper wiring chamber and the lower wiring chamber are cable wiring chambers with independent units;

the left side and the right side of the rear cavity are provided with 13 paths of mounting holes, and the number of the mining flameproof high-voltage cable connectors is determined according to actual requirements.

Compared with the prior art, the utility model has the following beneficial effects:

1. the front cavity adopts the structural design of an upper layer and a lower layer, is divided into 4 breaker cavities at the upper layer and 4 breaker cavities at the lower layer, can effectively realize the uniform layout of the front cavity, and meanwhile, the 8 breaker cavities are arranged into four functional units of a wire inlet unit, a communication unit and an isolation unit according to the functional distribution of the internal elements of the front cavity, so that the reasonable design and the use safety of the functions of the whole combined distribution device are effectively ensured when the front cavity is safely used under a mine.

2. The high-voltage live display, the camera and the travel switch are further arranged in the circuit breaker cavity, so that the purpose of conveniently observing the position of a moving contact of the circuit breaker can be achieved, and meanwhile, when the front door of the circuit breaker cavity is opened, the travel switch is disconnected, the power supply of the unit is cut off, and the personal safety is protected.

3. The high-voltage electrified display windows arranged on the front doors of the breaker cavities can be used for conveniently observing the electrified state of high-voltage equipment, and play a role in prompting error prevention and safety; the breaker on-off observation window can be convenient for directly observing the on-off state of the breaker; the manual switching-on and switching-off key and the handcart operation hole can be convenient for carrying out manual switching-on and switching-off and shaking-in and shaking-out operations on the circuit breaker.

4. The handcart type circuit breaker is placed in the inlet wire unit, the feeder unit and the connecting unit, and the isolation unit is placed in the isolation vehicle, so that the function of cutting off or closing working current or fault current in the high-voltage circuit is realized.

5. When the device is designed, the comprehensive protection is realized on each loop, the electricity consumption of each loop is monitored and protected, the circuit breaker is ensured to be reliably opened and closed, and the safety in use under the mine is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or features are generally identified by like reference numerals throughout the drawings. In the drawings, the elements or components are not necessarily drawn to scale.

FIG. 1 is a system diagram of the present utility model.

Fig. 2 is a schematic diagram of an explosion-proof housing of the present utility model-a front view.

Fig. 3 is a schematic view of the explosion-proof housing of the present utility model-left side view.

Fig. 4 is a schematic diagram of the explosion-proof housing of the present utility model-right side view.

Fig. 5 is a schematic view of the front door-outside of the centralized control chamber of the explosion-proof housing of the present utility model.

Fig. 6 is a schematic view-inside of the front door of the centralized control chamber of the explosion-proof housing of the present utility model.

Fig. 7 is a schematic view of the right door-inside of the centralized control chamber of the explosion-proof housing of the present utility model.

In the figure, 1, a breaker cavity; 2. a handcart; 3. a high voltage charging device observation window; 4, a breaker switching-on and switching-off observation window; 5. a manual closing and opening key; 6. a cart operation hole; 7. a travel switch; 8. a handcart type circuit breaker; 9. isolation vehicle; 10. a centralized control cavity; 11. a switch; 12. a temperature collector; 13. fully-protecting; 14. a comprehensive protection control loop breaker; 15. a transformer chamber; 16. a cable loading chamber; 17. an upper junction chamber; 18. a bus bar chamber; 19. a temperature sensor; 20. a lower junction chamber; 21. a lower cable chamber; 22. a camera; 23. isolating the socket; 24. a guide rail positioning device; 25. a high voltage charged display; 26. a secondary junction chamber; 27. a low voltage cable introduction device; 28. comprehensive protection display screen observation window; 29. a cable connector; 30. a display screen observation window; 31. an intrinsic safety operation button; 32. a display screen; 33. an intrinsic safety board; 34. an intrinsic safety wiring cavity; 35. explosion-proof through-wall binding post; 36. a comprehensive protection display screen; 37. an electric energy meter; 38. a direct current power supply; 39. a circuit breaker; 40. a contactor; 41. a relay; 42. a PLC module; 43. a cart controller; 44. sheet relay; 45. an explosion-proof housing.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model. The specific structure of the utility model is shown in figures 1-7.

Example 1: the mining explosion-proof and intrinsically safe high-voltage combined vacuum power distribution device comprises an explosion-proof shell 45, wherein the explosion-proof shell is of a cuboid structure which is arranged in a hollow mode, the interior of the explosion-proof shell is divided into a front cavity and a rear cavity, the front cavity and the rear cavity are separated by a partition plate, a plurality of circuit breaker cavities 1 which are arranged at intervals are arranged on the left side of the front cavity, a centralized control cavity 10 and a secondary wiring cavity are arranged on the right side of the front cavity, the rear cavity is sequentially divided into an upper cable chamber 16, an upper wiring chamber 17, a bus chamber 18, a lower wiring chamber 20 and a lower cable chamber 21 from top to bottom, a front door of the circuit breaker cavity 1 is arranged on the front side of each circuit breaker cavity 1, one side of the front door of the circuit breaker cavity 1 is hinged to the outer side wall of the explosion-proof shell 45 through a hinge, and a handcart type circuit breaker 8 and a isolation trolley 9 are arranged in each circuit breaker cavity 1; the breaker cavities 1 are respectively distributed and arranged into four functional units, namely a wire inlet unit, a feeder unit, a communication unit and an isolation unit.

The cavity doors of the explosion-proof housing 45 are all of a side-opening hinge structure.

The breaker cavities 1 are arranged into four functional units of a wire inlet unit, a connecting unit and an isolating unit according to the functional distribution, and the specific layout is arranged according to the use specifications of the industry; and a handcart type breaker 8 is arranged in each breaker cavity 1 corresponding to the wire inlet unit, the wire inlet unit and the communication unit.

In the specific installation, the energy storage motor and the driving motor are arranged on the handcart type breaker 8, and the isolation vehicle 9 is provided with the driving motor, so that the full electric operation can be realized.

When the device is connected with a circuit, the devices are connected according to industry specifications, and a professional installer performs wiring and wiring according to conventional operation.

Meanwhile, the switch-on and switch-off operation buttons are arranged on the outer parts of the gates of the breaker cavities 1, so that the on-site manual switch-on and switch-off requirement is met.

The circuit breaker 39 is provided with an energy storage handle which can be used to store energy for the circuit breaker 39 in the event of a power outage. The handcart type breaker 8 and the isolation trolley 9 are fixedly arranged on the guide rail.

The trolley 2 is provided with test positions and working positions in the corresponding chambers, and each position is provided with a corresponding device to ensure reliable interlocking. When the breaker 39 handcart 2 is in a test or working position, the breaker 39 handcart 2 can be switched on and off, and after the breaker 39 is switched on, the handcart 2 cannot move, so that the on-load mispulling and the inference of the breaker 39 are prevented.

The wire inlet unit is responsible for connecting a main power supply to a bus and providing protection of overcurrent, overvoltage and the like; the feeder unit is responsible for distributing a main power supply to each lower-level power utilization branch; the connecting unit is responsible for connecting or disconnecting the two sections of buses; an isolation vehicle 9 is arranged in the isolation unit to ensure the safety of maintenance work.

The incoming line unit, the feeder line unit and the connecting unit are provided with a handcart type breaker 8, and the isolating unit is provided with an isolating car 9, so that the action of cutting off or closing working current or fault current in the high-voltage circuit is realized.

Each functional unit has an electric switching-on/off function, and is provided with intelligent functional configurations such as a temperature real-time monitoring function, a video monitoring function, a data remote optical fiber transmission function and the like.

A wireless temperature sensor is arranged on a cable of a load side outlet end of the switch component and a cable at a cable connector 29, receives a temperature signal through a terminal, uploads the temperature signal to a display screen 32 for on-site display in real time, and can also transmit the temperature signal to an upper computer through a switch 11.

The high-definition camera 22 is installed at the isolation fracture to visually monitor the switch state, and the video signal can be displayed in the display screen 32 on site or uploaded to an upper computer for viewing through the switch 11 and the underground video signal ring network.

In any of the above schemes, it is preferable that each breaker cavity 1 is in a shape of upper and lower layers and each breaker cavity 1 is an independent explosion-proof cavity; and each explosion-proof cavity is connected with other cavities by adopting a mining explosion-proof connecting terminal.

In any of the above schemes, it is preferable that a high-voltage charging device observation window 3, a breaker on-off observation window 4, a manual on-off button 5 and a handcart 2 operation hole are sequentially installed on the front door of each breaker cavity 1 from top to bottom.

The high-voltage electrified display windows arranged on the front doors of the breaker cavities 1 can be used for conveniently observing the electrified state of high-voltage equipment, and play a role in prompting error prevention and safety; the breaker opening and closing observation window 4 can be convenient for directly observing the opening and closing state of the breaker 39; the manual switch-on/off button 5 and the handcart operation hole 6 can facilitate the manual switch-on/off and the swinging-in/out operation of the breaker 39.

In any of the above solutions, preferably, a high-voltage live display 25, a camera 22 and a travel switch 7 are further installed in each of the breaker chambers 1; the camera 22 is arranged at the position of the top in the breaker cavity 1 at the corresponding position, which is close to the rear cavity, so as to achieve the aim of conveniently observing the position of the moving contact of the breaker 39; the travel switch 7 is arranged at the position of the corresponding breaker cavity 1, which is close to the flange at the corresponding position, and when the front door of the breaker cavity 1 is opened, the travel switch 7 is disconnected, the power supply of the unit is cut off, and the personal safety is protected.

In any of the above schemes, it is preferable that the isolating sockets 23, the flameproof connection terminals and the flameproof net twine wall penetrating terminals are installed on the partition boards at the positions corresponding to the back cavity of each breaker cavity 1;

a guide rail positioning device is arranged at the bottom of each breaker cavity 1, and the matched movable contact and the fixed contact are accurately overlapped through the operation of the guide rail positioning device 24;

after the handcart type breaker 8 is rocked into the working position, the contact of the breaker 39 is engaged with the isolating socket 23;

the control line of the circuit breaker 39 is connected to the centralized control chamber 10 through an explosion-proof wiring terminal;

the camera 22 is connected to the network port of the exchange 11 through an explosion-proof network cable through-wall terminal.

In any of the above schemes, it is preferable that the centralized control chamber 10 is divided into an upper part and a lower part by a partition board, wherein the upper half part of the centralized control chamber 10 is provided with required secondary control elements, including a temperature collector 12, a PLC, a handcart controller 42, a relay 41, a management type switch 11 and a comprehensive protection 13, a line slot is arranged on the left side, a comprehensive protection display screen 36, an electric energy meter 37, a circuit breaker 39 and a contactor 40 are arranged on the right side, a display screen 32 window and an intrinsic safety control button are sequentially arranged on the front door of the centralized control chamber from top to bottom, and a display screen 32 and an intrinsic safety board 33 are arranged on the inner side of the front door;

the temperature collector 12 communicates with the PLC through an RS485 communication line, and the PLC reads the temperature value in the temperature collector 12 and uploads the temperature value to the display screen 32;

the comprehensive protection display screen 36 is connected to the comprehensive protection 13 through a network cable, and the comprehensive protection 13 parameter setting and state reading are realized through the comprehensive protection display screen 36;

the electric energy meter 37 is connected to a network port of the switch 11 through a network cable, each parameter of electric energy is directly read from the electric energy meter 37, and the electric energy meter 37 is set through keys;

the lower half of the central control chamber 10 is a transformer chamber 15.

In any of the above schemes, it is preferable that the transformer chamber 15 is located below the centralized control chamber 10 and is partitioned into independent spaces by a partition plate, and has built-in voltage transformers and power transformers for providing voltage signals for metering and protection of the whole set of devices, and working power.

In any of the above schemes, it is preferable that the intrinsic safety control button is connected with the intrinsic safety board 33 of the main chamber through the intrinsic safety wiring cavity 34 and the anti-explosion wall penetrating wiring post 35.

Example 2: the mining explosion-proof and intrinsically safe high-voltage combined vacuum power distribution device comprises an explosion-proof shell 45, wherein the explosion-proof shell is of a cuboid structure which is arranged in a hollow mode, the interior of the explosion-proof shell is divided into a front cavity and a rear cavity, the front cavity and the rear cavity are separated by a partition plate, a plurality of circuit breaker cavities 1 which are arranged at intervals are arranged on the left side of the front cavity, a centralized control cavity 10 and a secondary wiring cavity are arranged on the right side of the front cavity, the rear cavity is sequentially divided into an upper cable chamber 16, an upper wiring chamber 17, a bus chamber 18, a lower wiring chamber 20 and a lower cable chamber 21 from top to bottom, a front door of the circuit breaker cavity 1 is arranged on the front side of each circuit breaker cavity 1, one side of the front door of the circuit breaker cavity 1 is hinged to the outer side wall of the explosion-proof shell 45 through a hinge, and a handcart type circuit breaker 8 and a isolation trolley 9 are arranged in each circuit breaker cavity 1; the breaker cavities 1 are respectively distributed and arranged into four functional units, namely a wire inlet unit, a feeder unit, a communication unit and an isolation unit. The cavity doors of the explosion-proof housing 45 are all of a side-opening hinge structure.

The breaker cavities 1 are arranged into four functional units of a wire inlet unit, a connecting unit and an isolating unit according to the functional distribution, and the specific layout is arranged according to the use specifications of the industry; and a handcart type breaker 8 is arranged in each breaker cavity 1 corresponding to the wire inlet unit, the wire inlet unit and the communication unit.

In the specific installation, the energy storage motor and the driving motor are arranged on the handcart type breaker 8, and the isolation vehicle 9 is provided with the driving motor, so that the full electric operation can be realized.

Meanwhile, the switch-on and switch-off operation buttons are arranged on the outer parts of the gates of the breaker cavities 1, so that the on-site manual switch-on and switch-off requirement is met.

The circuit breaker 39 is provided with an energy storage handle which can be used to store energy for the circuit breaker 39 in the event of a power outage. The handcart type breaker 8 and the isolation trolley 9 are fixedly arranged on the guide rail.

The trolley 2 is provided with test positions and working positions in the corresponding chambers, and each position is provided with a corresponding device to ensure reliable interlocking. When the breaker 39 handcart 2 is in a test or working position, the breaker 39 handcart 2 can be switched on and off, and after the breaker 39 is switched on, the handcart 2 cannot move, so that the on-load mispulling and the inference of the breaker 39 are prevented.

The wire inlet unit is responsible for connecting a main power supply to a bus and providing protection of overcurrent, overvoltage and the like; the feeder unit is responsible for distributing a main power supply to each lower-level power utilization branch; the connecting unit is responsible for connecting or disconnecting the two sections of buses; an isolation vehicle 9 is arranged in the isolation unit to ensure the safety of maintenance work.

The incoming line unit, the feeder line unit and the connecting unit are provided with a handcart type breaker 8, and the isolating unit is provided with an isolating car 9, so that the action of cutting off or closing working current or fault current in the high-voltage circuit is realized.

Each functional unit has an electric switching-on/off function, and is provided with intelligent functional configurations such as a temperature real-time monitoring function, a video monitoring function, a data remote optical fiber transmission function and the like.

A wireless temperature sensor is arranged on a cable of a load side outlet end of the switch component and a cable at a cable connector 29, receives a temperature signal through a terminal, uploads the temperature signal to a display screen 32 for on-site display in real time, and can also transmit the temperature signal to an upper computer through a switch 11.

The high-definition camera 22 is installed at the isolation fracture to visually monitor the switch state, and the video signal can be displayed in the display screen 32 on site or uploaded to an upper computer for viewing through the switch 11 and the underground video signal ring network.

In any of the above schemes, it is preferable that each breaker cavity 1 is in a shape of upper and lower layers and each breaker cavity 1 is an independent explosion-proof cavity; and each explosion-proof cavity is connected with other cavities by adopting a mining explosion-proof connecting terminal.

In any of the above schemes, it is preferable that a high-voltage charging device observation window 3, a breaker on-off observation window 4, a manual on-off button 5 and a handcart 2 operation hole are sequentially installed on the front door of each breaker cavity 1 from top to bottom.

The high-voltage electrified display windows arranged on the front doors of the breaker cavities 1 can be used for conveniently observing the electrified state of high-voltage equipment, and play a role in prompting error prevention and safety; the breaker opening and closing observation window 4 can be convenient for directly observing the opening and closing state of the breaker 39; the manual switch-on/off button 5 and the handcart operation hole 6 can facilitate the manual switch-on/off and the swinging-in/out operation of the breaker 39.

In any of the above solutions, preferably, a high-voltage live display 25, a camera 22 and a travel switch 7 are further installed in each of the breaker chambers 1; the camera 22 is arranged at the position of the top in the breaker cavity 1 at the corresponding position, which is close to the rear cavity, so as to achieve the aim of conveniently observing the position of the moving contact of the breaker 39; the travel switch 7 is arranged at the position of the corresponding breaker cavity 1, which is close to the flange at the corresponding position, and when the front door of the breaker cavity 1 is opened, the travel switch 7 is disconnected, the power supply of the unit is cut off, and the personal safety is protected.

In any of the above schemes, it is preferable that the isolating sockets 23, the flameproof connection terminals and the flameproof net twine wall penetrating terminals are installed on the partition boards at the positions corresponding to the back cavity of each breaker cavity 1;

a guide rail positioning device is arranged at the bottom of each breaker cavity 1, and the matched movable contact and the fixed contact are accurately overlapped through the operation of the guide rail positioning device 24;

after the handcart type breaker 8 is rocked into the working position, the contact of the breaker 39 is engaged with the isolating socket 23;

the control line of the circuit breaker 39 is connected to the centralized control chamber 10 through an explosion-proof wiring terminal;

the camera 22 is connected to the network port of the exchange 11 through an explosion-proof network cable through-wall terminal.

In any of the above schemes, it is preferable that the centralized control chamber 10 is divided into an upper part and a lower part by a partition board, wherein the upper half part of the centralized control chamber 10 is provided with required secondary control elements, including a temperature collector 12, a PLC, a handcart controller 42, a relay 41, a management type switch 11 and a comprehensive protection 13, a line slot is arranged on the left side, a comprehensive protection display screen 36, an electric energy meter 37, a circuit breaker 39 and a contactor 40 are arranged on the right side, a display screen 32 window and an intrinsic safety control button are sequentially arranged on the front door of the centralized control chamber from top to bottom, and a display screen 32 and an intrinsic safety board 33 are arranged on the inner side of the front door;

the temperature collector 12 communicates with the PLC through an RS485 communication line, and the PLC reads the temperature value in the temperature collector 12 and uploads the temperature value to the display screen 32;

the comprehensive protection display screen 36 is connected to the comprehensive protection 13 through a network cable, and the comprehensive protection 13 parameter setting and state reading are realized through the comprehensive protection display screen 36;

the electric energy meter 37 is connected to a network port of the switch 11 through a network cable, each parameter of electric energy is directly read from the electric energy meter 37, and the electric energy meter 37 is set through keys;

the lower half of the central control chamber 10 is a transformer chamber 15.

In any of the above schemes, it is preferable that the secondary wiring cavity is located at the upper right side of the centralized control cavity 10, and is isolated from the independent flameproof cavity by a partition board provided with flameproof wiring terminals, and remote control and communication are realized by a voltage cable introduction device 27 installed at the right side thereof.

In any of the above schemes, it is preferable that the transformer chamber 15 is located below the centralized control chamber 10 and is partitioned into independent spaces by a partition plate, and has built-in voltage transformers and power transformers for providing voltage signals for metering and protection of the whole set of devices, and working power.

In any of the above schemes, it is preferable that the intrinsic safety control button is connected with the intrinsic safety board 33 of the main chamber through the intrinsic safety wiring cavity 34 and the anti-explosion wall penetrating wiring post 35.

In any of the above embodiments, it is preferable that the upper cable chamber 16, the upper wiring chamber 17, the bus bar chamber 18, the lower wiring chamber 20, and the lower cable chamber 21 are isolated from each other between the chambers of the rear chamber by a partition plate and an insulating plate; wherein, the cable chamber is used for placing in-out cables, and the wiring chamber is provided with a piezoresistor, a current transformer and a wireless temperature sensor; a temperature sensor 19 is arranged at a key temperature measuring point, and the temperature of the device is monitored in real time; the upper and lower wiring chambers 20 are cable wiring chambers with independent units;

the left side and the right side of the rear cavity are provided with 13 paths of mounting holes, and the number of the mining flameproof high-voltage cable connectors 29 is determined according to actual requirements.

The management switch 11 is used for connecting each unit camera 22, the electric energy meter 37, the display screen 32, the PLC and the comprehensive protection 13, and isolating the video signal and the control signal through VLAN configuration so as to achieve the purposes of avoiding mutual interference among signals and improving the overall performance of the network.

The temperature sensor 19 is installed at the key position, and the temperature of the key position is observed in real time and the alarm is given to the overrun temperature value.

The intrinsic safety control button connects the intrinsic safety wiring cavity 34 with the intrinsic safety board 33 of the centralized control cavity through the explosion-proof through-wall wiring post 35.

The device is operated by the intrinsic safety operation button 31, and the intrinsic safety operation button can be used for electrically switching on and off and also can be used for operating the display screen 32.

The transformer room 15 is internally provided with a power transformer and a voltage transformer, wherein the power transformer outputs 110V voltage signals to each unit to provide control power for each unit.

The voltage transformer is only used for providing voltage signals for measurement and protection of each unit and zero sequence voltage signals, so that the fault rate of the voltage transformer is effectively reduced, and the accuracy of measurement and the reliability of the device are improved.

Meanwhile, the whole device is also provided with an uninterruptible power supply box connected with the device, and the power supply box is used as a backup power supply to meet emergency use requirements.

The display screen 32 is connected to the network port of the switch 11 through a network cable, and communicates with other devices through the switch 11, and displays the communication state of each device, the isolation operation state, the metering data and the operation parameter setting of each unit breaker 39, and the electric operation of the handcart 2 is possible.

The PLC is connected to the network port of the switch 11 through a network cable, and the PLC analyzes and judges the information of the current interface position of the screen, the working state of the circuit breaker 39, the position of the handcart 2, the working state of the electric module of the handcart 2 and the like, outputs a control signal, realizes the function of controlling the handcart 2 to shake in and shake out through the screen, and can only operate when the circuit breaker 39 is in a brake separating state.

The comprehensive protection 13 is communicated with the display screen 32 through an RS485 communication line, and when an intrinsic safety switching-on and switching-off operation button is pressed, a switching-on and switching-off signal is connected to a comprehensive protection 13 switching-on and switching-off control point through the intrinsic safety An Ban; the comprehensive protection 13 controls the corresponding circuit breaker 39 to switch on and off, and meanwhile, the comprehensive protection 13 is also connected with a voltage signal of a voltage transformer, a current signal of a current transformer, a zero sequence current signal of a zero sequence transformer, an insulation monitoring signal and a wind power gas locking signal, so that comprehensive protection of the device is realized.

When the device is designed, the comprehensive protection 13 is adopted for each loop, and the electricity consumption of each loop is monitored and protected respectively, so that the circuit breaker 39 is ensured to be reliably closed and opened.

In the intrinsic safety operation button 31 area, the closing buttons of the incoming line unit, the feeder line unit or the connecting unit are pressed, and closing signals of the corresponding units are transmitted to closing input points of the corresponding comprehensive protection 13 through the intrinsic safety board 33.

The comprehensive protection 13 receives a closing signal, and a closing output point outputs the closing signal to the circuit breaker 39, and the circuit breaker 39 closes; the opening signals of the corresponding units are transmitted to the opening input points of the corresponding comprehensive protection 13 through the intrinsic safety board 33 by pressing the opening buttons of the wire inlet units, the wire inlet units or the connecting units.

The comprehensive protection 13 receives the opening signal, the tripping output point outputs the opening signal to the breaker 39, the opening loop of the breaker 39 is closed, and the breaker 39 is opened.

Meanwhile, the comprehensive protection 13 is also connected with a voltage signal of a voltage transformer, a current signal of a current transformer, a zero sequence current signal of a zero sequence transformer, an insulation monitoring signal and a wind power gas locking signal, so that a protection function is realized.

When the device is designed, a handcart controller 42 is controlled by a PLC, so that the handcart 2 of all loops can be rocked into and out of operation; any unit can be selected to operate the handcart 2 on the interface of the display screen 32 'single equipment'; on the premise that the front door is closed, the complete travel switch 7 is closed, and the handcart controller 42 is not in fault and allows operation, the operation display screen 32 enters a certain unit interface, the display screen 32 transmits a selected signal of the unit to the PLC, and the PLC controls the power supply loop of the motor of the handcart 2 to be connected, and the motor of the handcart 2 is connected.

When the handcart 2 is positioned at the test position, the 'shake-in' is selected on the display screen 32, the display screen 32 transmits a shake-in signal of the unit to the PLC, and the PLC controls the handcart controller 42 to switch on a shake-in loop of the handcart 2, so that the handcart 2 is rocked into the working position; when the cart 2 is in the working position, "shake out" is selected on the display screen 32, the display screen 32 transmits a shake out signal of the unit to the PLC, and the PLC controls the cart controller 42 to turn on the shake out circuit of the cart 2, and the cart 2 is shake out to the test position.

The handcart controller 42 is used for controlling the swinging in and out of the circuit breaker 39 of the handcart 2 and the isolation handcart 9, and when the controller fails or the handcart 2 runs abnormally, the system is protected and locked, a fault signal point acts, and a fault lamp is lighted; the cart controller 42 may be reset through the screen to return the system to a standby state.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model and are intended to be within the scope of the appended claims and description; any alternative modifications or variations to the embodiments of the present utility model will fall within the scope of the present utility model for those skilled in the art.

The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

Claims (10)

1. Mining flameproof and intrinsically safe high-voltage combined vacuum power distribution device is characterized in that: the explosion-proof device comprises an explosion-proof shell, wherein the explosion-proof shell is of a cuboid structure which is arranged in a hollow mode, the inside of the explosion-proof shell is divided into a front cavity and a rear cavity, the front cavity is separated from the rear cavity through a partition plate, a plurality of circuit breaker cavities which are arranged at intervals are arranged on the left side of the front cavity, a centralized control cavity and a secondary wiring cavity are arranged on the right side of the front cavity, the rear cavity is sequentially divided into an upper cable chamber, an upper wiring chamber, a bus chamber, a lower wiring chamber and a lower cable chamber from top to bottom, a front door of the circuit breaker cavity is arranged on the front side of each circuit breaker cavity, one side of the front door of the circuit breaker cavity is hinged to the outer side wall of the explosion-proof shell through a hinge, and a handcart type circuit breaker and an isolation vehicle are arranged in each circuit breaker cavity; the breaker cavities are respectively distributed and arranged into four functional units, namely a wire inlet unit, a feeder unit, a communication unit and an isolation unit.

2. The mining flameproof and intrinsically-safe high-voltage combined vacuum power distribution device of claim 1, wherein the device is characterized by: each breaker cavity is in an upper layer and a lower layer distribution shape, and each breaker cavity is an independent explosion-proof cavity; and each explosion-proof cavity is connected with other cavities by adopting a mining explosion-proof connecting terminal.

3. The mining flameproof and intrinsically-safe high-voltage combined vacuum power distribution device of claim 2, wherein the device is characterized by: the front door of each breaker cavity is sequentially provided with a high-voltage charging device observation window, a breaker switching-on and switching-off observation window, a manual switching-on and switching-off key and a handcart operation hole from top to bottom.

4. The mining explosion-proof and intrinsically-safe high-voltage combined vacuum power distribution device of claim 3, wherein the device comprises: a high-voltage live display, a camera and a travel switch are also arranged in each breaker cavity; the camera is arranged at the position of the top in the breaker cavity at the corresponding position, which is close to the rear cavity, so that the purpose of conveniently observing the position of the moving contact of the breaker is achieved; the travel switch is arranged at the position of the corresponding breaker cavity close to the flange at the corresponding position, and when the front door of the breaker cavity is opened, the travel switch is disconnected, the power supply of the unit is cut off, and the personal safety is protected.

5. The mining flameproof and intrinsically-safe high-voltage combined vacuum power distribution device of claim 4, wherein the device is characterized by: an isolation socket, an explosion-proof wiring terminal and an explosion-proof net wire through-wall terminal are arranged on a partition plate at the corresponding position of each circuit breaker cavity and the rear cavity;

the bottom of each breaker cavity is provided with a guide rail positioning device, and the matched movable contact and the fixed contact are accurately overlapped through the operation of the guide rail positioning device;

after the handcart type circuit breaker is rocked into a working position, a circuit breaker contact is connected with an isolation socket;

the control line of the circuit breaker is connected to the centralized control cavity through an explosion-proof connecting terminal;

the camera is connected to the network port of the exchanger through the explosion-proof network cable through-wall terminal.

6. The mining flameproof and intrinsically-safe high-voltage combined vacuum power distribution device of claim 5, wherein the device is characterized by: the centralized control cavity is divided into an upper part and a lower part by a partition plate, wherein the upper half part of the centralized control cavity is provided with required secondary control elements, the secondary control elements comprise a temperature collector, a PLC, a handcart controller, a relay, a management type switch and a comprehensive protection device, a line slot is arranged on the left side, a comprehensive protection display screen, an electric energy meter, a circuit breaker and a contactor are arranged on the right side of the line slot, a display screen window and an intrinsic safety control button are sequentially arranged on a front door of the centralized control cavity from top to bottom, and a display screen and an intrinsic safety board are arranged on the inner side of the front door;

the temperature collector is communicated with the PLC through an RS485 communication line, and the PLC reads the temperature value in the temperature collector and uploads the temperature value to the display screen;

the comprehensive protection display screen is connected to the comprehensive protection through a network cable, and comprehensive protection parameter setting and state reading are realized through the comprehensive protection display screen;

the electric energy meter is connected to a network port of the switch through a network cable, each parameter of the electric energy is directly read from the electric energy meter, and the electric energy meter is set through keys;

the lower half part of the centralized control cavity is a transformer room.

7. The mining flameproof and intrinsically-safe high-voltage combined vacuum power distribution device of claim 6, wherein the device is characterized by: the secondary wiring cavity is positioned at the upper right of the centralized control cavity, is isolated from an independent explosion-proof cavity by a baffle plate provided with an explosion-proof wiring terminal, and realizes remote control and communication by a low-voltage cable introduction device arranged at the right side of the secondary wiring cavity.

8. The mining flameproof and intrinsically-safe high-voltage combined vacuum power distribution device of claim 7, wherein the device is characterized by: the transformer chamber is positioned below the centralized control cavity and is isolated into an independent space by a partition plate, and a voltage transformer and a power transformer are arranged in the transformer chamber and are used for providing voltage signals for metering and protecting the whole device and a working power supply.

9. The mining flameproof and intrinsically-safe high-voltage combined vacuum power distribution device of claim 8, wherein the device is characterized by: the intrinsic safety control button is connected with the intrinsic safety board of the main chamber through the intrinsic safety wiring cavity and the explosion-proof through-wall binding post.

10. The mining flameproof and intrinsically-safe high-voltage combined vacuum power distribution device of claim 9, wherein the device is characterized by: the upper cable chamber, the upper wiring chamber, the bus chamber, the lower wiring chamber and the lower cable chamber are isolated from each other through the partition board and the insulating board; wherein, the cable chamber is used for placing in-out cables, and the wiring chamber is provided with a piezoresistor, a current transformer and a wireless temperature sensor; configuring a temperature sensor at a key temperature measuring point, and monitoring the temperature of the device in real time; the upper wiring chamber and the lower wiring chamber are cable wiring chambers with independent units;

the left side and the right side of the rear cavity are provided with 13 paths of mounting holes, and the number of the mining flameproof high-voltage cable connectors is determined according to actual requirements.