CN202940468U - Mine-used explosion-proof zero-crossing release switch - Google Patents
Mine-used explosion-proof zero-crossing release switch Download PDFInfo
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- CN202940468U CN202940468U CN 201220662347 CN201220662347U CN202940468U CN 202940468 U CN202940468 U CN 202940468U CN 201220662347 CN201220662347 CN 201220662347 CN 201220662347 U CN201220662347 U CN 201220662347U CN 202940468 U CN202940468 U CN 202940468U
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Abstract
The utility model provides a mine-used explosion-proof zero-crossing release switch with which a power supply of a main circuit can be cut off at a zero-crossing moment of the current when a piece of underground coal mine three-phase alternating-current electric equipment is shut down. The mine-used explosion-proof zero-crossing release switch comprises an explosion-proof casing, an operating mechanism and an electric control part. The explosion-proof casing includes an explosion-proof junction box and an explosion-proof main box, wherein the explosion-proof junction box is internally provided with an inlet wire wiring terminal, an outlet wire wiring terminal and a control wire wiring terminal, the inlet wire wiring terminal is used to connect a three-phase power line, the lower end of the inlet wire wiring terminal enters the explosion-proof main box, the outlet wire wiring terminal is used to connect a power line of controlled equipment, and the explosion-proof main box is used to install the operating mechanism and the electric control part; the operating mechanism is installed on the explosion-proof main box and is used in operations of a zero-crossing release switch; and the electric control part is completely installed inside the explosion-proof main box and is used in the electric control of the zero-crossing release switch. With the mine-used explosion-proof zero-crossing release switch, a random power-cut operation of electric equipment can be changed into switching-off of an alternating current at a zero-crossing moment.
Description
Technical field
The utility model belongs to the electrical control field, particularly a kind of realize in controlling motor operation and shutting down the equipment three phase alternating current motor when needs are shut down when three-phase alternating current electrical network current over-zero the flame-proof mine zero passage release-push of disjunction.
Background technology
Underground coal mine electrical equipment is when orderly closedown or disorderly closedown at present; because mining explosion-proof switch vacuum tube breaking capacity is stronger than air contactor or air circuit breaking capacity; often in not disjunction by force during zero passage of power network current; overvoltage while causing on the motor inductance coil producing far away higher than its normal operation; cause coil insulation damage or puncture; too high back electromotive force enters intelligent monitor (or claiming protector) simultaneously; damage intelligent monitor, cause colliery downhole equipment normally not move.
The utility model content
The purpose of this utility model is to provide a kind of flame-proof mine zero passage switch of realizing when under coal mine, the three-phase alternating current power consumption equipment is shut down being cut off the main circuit power supply power supply when current over-zero; overvoltage when solving the shutdown existed in prior art owing to producing far away higher than its normal operation on the motor inductance coil; cause coil insulation damage or puncture; damage intelligent monitor (or claiming protector), the problem that causes colliery downhole equipment normally not move.
For achieving the above object, the utility model is by the following technical solutions:
A kind of flame-proof mine zero passage release-push, be comprised of explosion-proof casing, operating mechanism, electric control system three parts, described explosion-proof casing comprises explosion-proof wiring box and explosion-proof main tank, be provided with inlet wire binding post, outlet binding post and control line binding post in explosion-proof wiring box, the inlet wire binding post is for connecting three-phase power line, inlet wire binding post lower end enters explosion-proof main tank, the outlet binding post is for connecting the power line of controlled device, and explosion-proof main tank is for fitting operation mechanism and electric control system, described operating mechanism is arranged on explosion-proof main tank, for the operation of zero passage release-push, the electric control system electric control system all is arranged in explosion-proof main tank, for the electrical control of zero passage release-push, described electric control system is by the zero passage device, electric control unit, sampling unit, the intelligent comprehensive controller, zero passage disjunction trigger control unit, the major loop breaking device, signal preprocessor forms, electric control unit connects respectively zero passage break-up device and sampling unit, zero passage break-up device and sampling unit are connected with the power supply three-phase power line, crossing zero breaking control device and major loop, to cut-off control device in parallel, the zero passage break-up device connects zero passage disjunction trigger control unit, sampling unit connects signal preprocessor, the disconnected trigger control unit of zero all is connected the intelligent comprehensive controller with signal preprocessor, major loop is connected to three phase mains before cut-offfing control device, and major loop is connected to the outlet binding post after cut-offfing control device, connects the controlled device power line on the outlet binding post.
Described explosion-proof main tank and explosion-proof wiring box junction are provided with dividing plate, by baffle for separating, be two independently parts, described explosion-proof wiring box upper end is provided with the explosion-proof wiring case lid, the front of explosion-proof wiring box offers control line and leads in/out device, side offers respectively one group of cable ejector and cable entry, be provided with the control line junction block in explosion-proof wiring box, the explosion-proof wiring box top is provided with cable grounding device and cable outlet earthing device, is provided with inlet wire binding post, outlet binding post, control line binding post on dividing plate.
The explosion-proof wiring box top is provided with the power supply support, and the power supply support is provided with insulation protective board, and input terminal separates by insulation protective board and the outlet binding post be arranged on the power supply support plate.
Described operating mechanism comprises the action button that the main tank that is arranged on explosion-proof main tank covers, be arranged on stop botton, commutation handgrip, locking screw rod, the block of explosion-proof main tank one side, the commutation handgrip is assemblied on explosion-proof main tank by universal driving shaft, stop botton and commutation handgrip, locking screw rod, block are for realizing an Electricity Federation lock, while opening the main tank lid, the electric control system in explosion-proof main tank can not be charged; And when shutting main tank when lid, the operation of could switching on of the electric control system in explosion-proof main tank.
Main tank covers by push-button socket button is installed, and between button and push-button socket, is provided with back-moving spring.
The main tank of described explosion-proof main tank covers and is provided with observation window.
It is vacuum contactor or vacuum circuit-breaker that major loop on described electric control system cut-offs control device.
Described zero breaking control device excessively is power electronic device, as controllable silicon, IGBT, IGCT or other controllable power electronic device.
The beneficial effects of the utility model are: the utility model has the advantage of that can make the random power operation of power consumption equipment become alternating current quits work when zero crossing.The overvoltage that moment produces on motor coil because of damming of vacuum tube of having avoided fully having a power failure.
The utility model also has the functions such as leakage latching protection, overload protection, short-circuit protection, phase unbalance protection, overvoltage protection, under-voltage protection.
The utility model also has the functions such as net connection, communication and infrared operation.
Due to enforcement of the present utility model, colliery downhole equipment motor and electrical network have been started to effective protection, its advantage is apparent: one, can effectively prevent that the overvoltage produced by damming from appearring in electrical network; Two, can effectively protect intellective protector on electrical network (reliable, the effectively operation of watch-dog); Three, can reduce the equipment motor causes damage because of overvoltage or punctures.
The accompanying drawing explanation
Fig. 1 is explosion-proof casing front view of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is the vertical view of Fig. 1;
Fig. 5 is control principle block diagram of the present utility model;
Fig. 6 is intelligent controller principle block diagram of the present utility model.
Wherein, 1-explosion-proof wiring case lid, the 2-control line leads in/out device, the 3-explosion-proof wiring box, 4-cable ejector, the 5-observation window, the assembling of 6-universal driving shaft, the 7-action button, the 8-handgrip that commutates, 9-main tank lid, the 10-underframe, 11-cable ejector, the 12-dividing plate, the explosion-proof main tank of 13-, 14-inlet wire binding post, 15-outlet binding post, 16-zero passage break-up device, the 17-electric control unit, the 18-sampling unit, 19-control line binding post, 20-control line junction block, the 21-stop botton, 22-locking screw rod, the 23-block, the 24-push-button socket, the 25-back-moving spring, 26-cable outlet earthing device, 27-cable grounding device, 28-power supply board mount, the 29-major loop cut-offs control device, the 30-signal preprocessor, 31-zero passage disjunction trigger control unit, 32-intelligent comprehensive controller.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As Figure 1-5, a kind of flame-proof mine zero passage release-push, be comprised of explosion-proof casing, operating mechanism, electric control system three parts, explosion-proof casing comprises explosion-proof wiring box 3 and explosion-proof main tank 13, be provided with inlet wire binding post 14, outlet binding post 15 and control line binding post 19 in explosion-proof wiring box 3, inlet wire binding post 14 is for connecting three-phase power line, inlet wire binding post 14 lower ends enter explosion-proof main tank 13, outlet binding post 15 is for connecting the power line of controlled device, and explosion-proof main tank 13 is for fitting operation mechanism and electric control system, operating mechanism is arranged on explosion-proof main tank 13, for the operation of zero passage release-push, the electric control system electric control system all is arranged in explosion-proof main tank 13, for the electrical control of zero passage release-push, electric control system is by zero passage device 16, electric control unit 17, sampling unit 18, intelligent comprehensive controller 32, zero passage disjunction trigger control unit 31, major loop breaking device 29, signal preprocessor 30 forms, electric control unit 17 connects respectively zero passage break-up device 16 and sampling unit 18, zero passage break-up device 16 and sampling unit 18 are connected with the power supply three-phase power line, crossing zero breaking control device 16 and major loop, to cut-off control device 29 in parallel, zero passage break-up device 16 connects zero passage disjunction trigger control unit 31, sampling unit 18 connects signal preprocessor 30, the disconnected trigger control unit 31 of zero all is connected intelligent comprehensive controller 32 with signal preprocessor 30, major loop is connected to three phase mains before cut-offfing control device 29, and major loop is connected to outlet binding post 19 after cut-offfing control device 29, connects the controlled device power line on outlet binding post 19.
Explosion-proof main tank 13 is provided with dividing plate 12 with explosion-proof wiring box 3 junctions, be divided into two independently parts by dividing plate 12, explosion-proof wiring box 3 upper ends are provided with explosion-proof wiring case lid 1, the front of explosion-proof wiring box 3 offers control line and leads in/out device 2, side offers respectively one group of cable ejector 4 and cable entry 11, be provided with control line junction block 20 in explosion-proof wiring box 3, explosion-proof wiring box 3 tops are provided with cable grounding device 27 and cable outlet earthing device 26, be provided with inlet wire binding post 14 on dividing plate 12, outlet binding post 15, control line binding post 19.
Explosion-proof wiring box 3 tops are provided with power supply support 28, and power supply support 28 is provided with insulation protective board, and input terminal 14 separates by insulation protective board and the outlet binding post 15 be arranged on power supply support plate 28.
Operating mechanism comprises the action button 7 on the main tank lid 9 that is arranged on explosion-proof main tank 13, by push-button socket 24, button 7 is installed on main tank lid 9, be provided with back-moving spring 25 between button 7 and push-button socket, be arranged on stop botton 21, commutation handgrip 8, locking screw rod 22, the block 23 of explosion-proof main tank 13 1 sides, commutation handgrip 8 is assemblied on explosion-proof main tank 13 by universal driving shaft 6, stop botton 21 and commutation handgrip 8, locking screw rod 22, block 23 are for realizing an Electricity Federation lock, open main tank and cover 9 o'clock, the electric control system in explosion-proof main tank 13 can not be charged; And when shutting main tank and cover 9, the operation of could switching on of the electric control systems in explosion-proof main tank 13.
The main tank lid 9 of explosion-proof main tank 13 is provided with observation window 5.The information such as the state parameter in the time of can learning operation by observation window 5 and inquiry fault.
Explosion-proof main tank bottom is provided with underframe 10.
Major loop on electric control system cut-offs control device 29 for vacuum contactor or vacuum circuit-breaker.Cross zero breaking control device 16 for power electronic device, as controllable silicon, IGBT, IGCT or other controllable power electronic device.
The electric control system of flame-proof mine zero passage release-push all is placed in explosion-proof main tank 13, while using under coal mine, three-phase power line (L1, L2, L3) is introduced to explosion-proof wiring box 3 from cable entry 11, be connected to the upper end of input terminal 14, and compress, the power line of controlled device (U, V, W) is introduced to explosion-proof wiring box 3 from the cable outlet terminal, be connected to outlet terminal 15, and compress; Inlet wire binding post 14 enters explosion-proof main tank 13 with the lower end of outlet binding post 15 through dividing plate 12.Explosion-proof main tank 13 is divided into two independently parts with explosion-proof wiring box 3 by dividing plate 12, is convenient to wiring, assembling and maintenance.
The electric control system of flame-proof mine zero passage release-push all is arranged in explosion-proof main tank 13.
The operation of flame-proof mine zero passage release-push completes by action button 7, back-moving spring 25, stop botton 21, commutation handgrip 8, the information such as the state parameter in the time of can learning operation by observation window 5 and inquiry fault.
Flame-proof mine zero passage release-push is realized an Electricity Federation lock by locking screw rod 22, block 23, stop botton 21, commutation handgrip 8, opens main tank and covers 9 o'clock, and the electric control system in explosion-proof main tank 13 can not be charged; And when shutting main tank and cover 9, the operation of could switching on of the electric control systems in explosion-proof main tank 13.
The electric control system 17 of flame-proof mine zero passage release-push is connected with main line by input terminal 14, outlet terminal 15 power supply of controlling that will be subject to break, by control line terminal 19, with control line junction block 20, the signal during by electric control system and equipment operation spreads out of, with the net connection under coal mine, and the network instruction signal is imported into, carry out straighforward operation.
The above-mentioned parts of flame-proof mine zero passage release-push is assembled together by modes such as welding, bolt connections, is placed on underframe 10, forms a complete equipment.
During the work of flame-proof mine zero passage release-push, the handgrip 8 that at first will commutate turns to closing position to the left or to the right; Now, the transformer in intelligent controller (Fig. 6) obtains electric work, the needed direct voltage of Switching Power Supply output intellective protector work, intellective protector work; After intellective protector work, at first carry out self check, if any fault, report to the police and show, then the circuit of load-side carried out to insulating monitoring, when the load-side insulation resistance value is up to state standards required value when above, the intellective protector allows the switch starting operation; Intellective protector is before the switch starting operation, carry out the parameters setting according to institute's bringing onto load equipment motor, as settings such as load current, short circuit multiples, and shown value is carried out small parameter perturbations by observation window 5 observation displays, for example, when magnitude of voltage and actual value have deviation, enter parameter of protector fine setting menu, by numerical value adjust to actual value one to, in like manner current value is also fine-tuning, can effectively protect electrical network and equipment motor like this; After above-mentioned work completes, press starting button, the equipment operation, intellective protector carries out Real-Time Monitoring, judges whether normally, determines whether shut down.
When equipment need to be shut down; press stop botton; this signal is by entering intellective protector with the protector control port; (anti-shake through anti-interference process; to eliminate the interference signal occurred because of misoperation); enter central processing unit; judge the power network current sample of signal is processed therewith by logic; on the one hand by 29 disjunctions of major loop breaking device; zero passage is controlled 16 connections simultaneously; export on the other hand zero cross signal and control to trigger control, and then make zero passage control 16 to disconnect when the power network current zero crossing, reach the purpose of protection motor by triggering to control.
When equipment need to reverse, press stop botton, Rotation With Changing is to handgrip.Now; stopping signal is by entering intellective protector with the protector control port; (anti-shake through anti-interference process; to eliminate the interference signal occurred because of misoperation); enter central processing unit; judge the power network current sample of signal is processed therewith by logic; on the one hand by 29 disjunctions of major loop breaking device; zero passage is controlled 16 connections simultaneously; export on the other hand zero cross signal and control triggering control; and then make zero passage control 16 to disconnect when the power network current zero crossing, reach the purpose of protection motor by trigger controlling.
When electrical network or equipment motor break down while needing, by sample of signal, Signal Pretreatment, signal is sent into to central processing unit, carried out the logic judgement by the standard signal with the central processing unit storage inside, determine fault category and the fault degree of electrical network and electric equipment, determine operate time.By 29 disjunctions of major loop breaking device, zero passage is controlled 16 connections simultaneously on the one hand; Export on the other hand zero cross signal and control to trigger control, and then make zero passage control 16 to disconnect when the power network current zero crossing by triggering to control; On the other hand fault category, fault time are delivered to display, be convenient to human-computer dialogue; On the other hand, fault category, fault time are delivered to mnemon, be convenient to inquiry.
As shown in Figure 6, flame-proof mine zero passage release-push can be by Infrared remote controller in the outer operation of explosion-proof main tank 13, and signal receives and be passed to intelligent controller by the intelligent controller infrared remote receiver, can complete all operations function of button 7, very convenient.
During the colliery downhole equipment network consisting, flame-proof mine zero passage release-push is shared data by PORT COM and network.The operation of flame-proof mine zero passage release-push can be controlled by central control system or host computer under coal mine by PORT COM, operational factor can be transferred on central monitor and central display unit large-screen, is convenient to centralized control and scheduling simultaneously; Host computer can inquire about flame-proof mine zero passage release-push operational mode and parameter, switch running status, break down after for information about; Can realize the splitting or integrating lock of remote control-switch, remote regulating-by-pass cock operational factor, remote measurement-distant place measuring-signal, the four remote control functions such as remote signalling-inquiry divides, combined floodgate.
When with remote controller, carrying out infrared operation, remote controller is aimed to watch window, press the respective keys on remote controller, just can complete all operations function that on door closure, button can complete.
Above-described is only preferred embodiment of the present utility model.Should be understood that for those skilled in the art is flat and say, under technology enlightenment provided by the utility model, as the common practise of this area, can also make equivalent variations and improvement; Technology provided by the utility model also can be applicable to voltage zero-cross and discharges; The related technology of the utility model also can be applied in the unit switch of composite class (multiloop); The related technology of the utility model also can be applicable to other field of the similar switch of power electronic device composition; At other, there is the place of damp or dust atmosphere can apply the utility model patented technology equally; Also should be considered as the utility model protection range.
Claims (9)
1. a flame-proof mine zero passage release-push, is characterized in that: explosion-proof casing, operating mechanism, electric control system three parts, consist of, described explosion-proof casing comprises explosion-proof wiring box (3) and explosion-proof main tank (13), be provided with inlet wire binding post (14), outlet binding post (15) and control line binding post (19) in explosion-proof wiring box (3), inlet wire binding post (14) is for connecting three-phase power line, inlet wire binding post (14) lower end enters explosion-proof main tank (13), outlet binding post (15) is for connecting the power line of controlled device, and explosion-proof main tank (13) is for fitting operation mechanism and electric control system, it is upper that described operating mechanism is arranged on explosion-proof main tank (13), for the operation of zero passage release-push, the electric control system electric control system all is arranged in explosion-proof main tank (13), for the electrical control of zero passage release-push, described electric control system is by zero passage device (16), electric control unit (17), sampling unit (18), intelligent comprehensive controller (32), zero passage disjunction trigger control unit (31), major loop breaking device (29), signal preprocessor (30) forms, electric control unit (17) connects respectively zero passage break-up device (16) and sampling unit (18), zero passage break-up device (16) and sampling unit (18) are connected with the power supply three-phase power line, crossing zero breaking control device (16) and major loop, to cut-off control device (29) in parallel, zero passage break-up device (16) connects zero passage disjunction trigger control unit (31), sampling unit (18) connects signal preprocessor (30), the zero trigger control unit (31) of breaking all is connected intelligent comprehensive controller (32) with signal preprocessor (30), major loop cut-offs the front three phase mains that is connected to of control device (29), and major loop is connected to outlet binding post (19) after cut-offfing control device (29), and the outlet binding post connects the controlled device power line on (19).
2. flame-proof mine zero passage release-push as claimed in claim 1, it is characterized in that: described explosion-proof main tank (13) is provided with dividing plate (12) with explosion-proof wiring box (3) junction, be divided into two independently parts by dividing plate (12), described explosion-proof wiring box (3) upper end is provided with explosion-proof wiring case lid (1), the front of explosion-proof wiring box (3) offers control line and leads in/out device (2), side offers respectively one group of cable ejector (4) and cable entry (11), be provided with control line junction block (20) in explosion-proof wiring box (3), explosion-proof wiring box (3) top is provided with cable grounding device (27) and cable outlet earthing device (26), be provided with inlet wire binding post (14) on dividing plate (12), outlet binding post (15), control line binding post (19).
3. flame-proof mine zero passage release-push as claimed in claim 2, it is characterized in that: explosion-proof wiring box (3) top is provided with power supply support (28), power supply support (28) is provided with insulation protective board, and input terminal (14) separates by insulation protective board and the outlet binding post (15) be arranged on power supply support plate (28).
4. flame-proof mine zero passage release-push as claimed in claim 1, it is characterized in that: described operating mechanism comprises the action button (7) on the main tank lid (9) that is arranged on explosion-proof main tank (13), be arranged on the stop botton (21) of explosion-proof main tank (13) one sides, commutation handgrip (8), locking screw rod (22), block (23), commutation handgrip (8) is assemblied on explosion-proof main tank (13) by universal driving shaft (6), stop botton (21), with commutation handgrip (8), locking screw rod (22), block (23) is for realizing an Electricity Federation lock, while opening main tank lid (9), electric control system in explosion-proof main tank (13) can not be charged, and when shutting main tank lid (9), the operation of could switching on of the electric control system in explosion-proof main tank (13).
5. flame-proof mine zero passage release-push as claimed in claim 4, is characterized in that: by push-button socket (24), button (7) is installed on main tank lid (9), between button (7) and push-button socket (7), is provided with back-moving spring (25).
6. flame-proof mine zero passage release-push as claimed in claim 4 is characterized in that: the main tank lid (9) of described explosion-proof main tank (13) is provided with observation window (5).
7. flame-proof mine zero passage release-push as claimed in claim 1, it is characterized in that: it is vacuum contactor or vacuum circuit-breaker that the major loop on described electric control system cut-offs control device (29).
8. flame-proof mine zero passage release-push as claimed in claim 1 is characterized in that: the described zero breaking control device (16) of crossing is for power electronic device, as controllable silicon, IGBT, IGCT or other controllable power electronic device.
9. described flame-proof mine zero passage release-push as arbitrary as claim 1-9, is characterized in that: bottom described explosion-proof main tank, be provided with underframe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662347 CN202940468U (en) | 2012-12-05 | 2012-12-05 | Mine-used explosion-proof zero-crossing release switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662347 CN202940468U (en) | 2012-12-05 | 2012-12-05 | Mine-used explosion-proof zero-crossing release switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940468U true CN202940468U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220662347 Expired - Fee Related CN202940468U (en) | 2012-12-05 | 2012-12-05 | Mine-used explosion-proof zero-crossing release switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036151A (en) * | 2012-12-05 | 2013-04-10 | 甘肃容和矿用设备集团有限公司 | Flame-proof type zero-cross release switch for mines |
-
2012
- 2012-12-05 CN CN 201220662347 patent/CN202940468U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036151A (en) * | 2012-12-05 | 2013-04-10 | 甘肃容和矿用设备集团有限公司 | Flame-proof type zero-cross release switch for mines |
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| Date | Code | Title | Description |
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| 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: 20130515 Termination date: 20161205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |