CN202837942U - Mining flame-proof and intrinsically safe electronic control system for air door control - Google Patents
Mining flame-proof and intrinsically safe electronic control system for air door control Download PDFInfo
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- CN202837942U CN202837942U CN2012201962950U CN201220196295U CN202837942U CN 202837942 U CN202837942 U CN 202837942U CN 2012201962950 U CN2012201962950 U CN 2012201962950U CN 201220196295 U CN201220196295 U CN 201220196295U CN 202837942 U CN202837942 U CN 202837942U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model belongs to electric control technologies and relates to a mining flame-proof and intrinsically safe electronic control system for air door control. The system comprises a main power supply circuit board and a standby power supply circuit board, wherein the main power supply circuit board is connected with a programmable logic controller (PLC) through a power supply switching button and is also connected with the PLC and an external device through a main relay by using a normally open contact of a controlling end and a manual cut-off button, the standby power supply circuit board is connected with a secondary output end of a transformer, the secondary output end of the transformer is also connected with the PLC and the external device through an auxiliary relay and the manual cut-off button, the standby power supply circuit board is connected with the manual cut-off button through a diode, the PLC is also connected with controlling ends of the main relay and the auxiliary relay, and the main relay and the auxiliary relay control normally closed contacts on the opposite sides. The system has the advantages that two types of power supplies are provided, so that failure of the whole system caused by external power failure is avoided, a remote control function is provided and operators can control the condition of underground air doors wholly and easily.
Description
Technical field
The invention belongs to Electrical Control Technology, relate to a kind of mine flameproof and intrinsic safety type airdoor control electric-control system.
Background technology
The electric-control system that just present mine uses, the problem of existence is as follows:
1: do not realize remote control function.
2: without standby power supply.After the power supply outage, air door control system lost efficacy immediately.
3: not anti-pinching function.
4: without manual power down function.
Summary of the invention
The present invention provides a kind of mine flameproof and intrinsic safety type airdoor control electric-control system esy to use, safe and reliable in order to remedy the deficiencies in the prior art.
The present invention is achieved through the following technical solutions:
Mine flameproof and intrinsic safety type airdoor control electric-control system of the present invention, its special character is: comprise main power circuit plate and standby power supply circuit board, the main power circuit plate connects the PLC controller through the electrical source exchange button, and also the normal opened contact through the main relay controlled terminal connects PLC controller and peripheral hardware with the cut-off button of being connected; Standby power supply circuit board connection transformer secondary output end, transformer secondary output output terminal also connect PLC controller and peripheral hardware through secondary relay with the cut-off button of being connected, and the standby power supply circuit board connects manual cut-off button through diode; The PLC controller also connects the control end of major and minor relay, and the two controls mutually the other side's normally closed contact major and minor relay.
Mine flameproof and intrinsic safety type airdoor control electric-control system of the present invention, PC is connected in the PLC controller in each explosion-proof tank by 485 buses and relevant X-over, and corresponding PLC controls corresponding air door.
The invention has the beneficial effects as follows, native system provides two kinds of Power supplies.When a kind of power cut-off wherein, system switches to another power supply immediately, avoids because in the situation of external power source outage the puzzlement that whole system lost efficacy.Remote control function, the whole control well lower wind door of easy operating personnel situation, when device damage is arranged, PC display alarm signal, operating personnel in time notify well servicing under the maintenance personal, shoot the arrow at the target, and increase work efficiency.Anti-pinching function has increased security, can not cause in the situation that air door is closed, and people or car are sandwiched in air door central authorities, the accident that causes casualties or device damage.Manual power down function externally during device damage, is pressed manual cut-off button, can in time reprocess, and has avoided superior leader application outage, has sent numerous and diverse formality such as electricity, has improved staff's efficient, avoids outage to make troubles to mine.It is blank that industry has been filled up in design and use by this system, and simple in structure, easy operating has widely practicality in the art.
Description of drawings
Fig. 1 is the control system electrical schematic.Fig. 2 is the Long-distance Control schematic diagram.Fig. 3 is control system Main Control Tank front elevation.Fig. 4 is that the control system Main Control Tank is thrown view.
Among the figure, 1 main power circuit plate, 2 main relays, 3 electrical source exchange buttons, 4 transformers, 5 127V relay indicating lights, 6 660V/1140V relay indicating lights, 7 PLC, 8 peripherals, 9 PCs, 10 AF-P485 breakout boxs, 11 external 5V power supplys, 12 RS485 buses, 13 AF-C485/D485 telecommunication cables, 14 casings, 15 platens, 16 gland nuts, 17 handles, 18 high-voltage connection terminals, 19 low-voltage wiring terminals, 20 master control borads, 21 standby power supply circuit boards, 22 manual cut-off buttons, 23 secondary relays.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
Mine flameproof and intrinsic safety type airdoor control electric-control system of the present invention, comprise main power circuit plate 1 and standby power supply circuit board 21, the main power circuit plate connects PLC controller 7 through electrical source exchange button 3, and also the normal opened contact through main relay 2 controlled terminals connects PLC controller and peripheral hardware 8 with the cut-off button of being connected 22; Standby power supply circuit board 21 connection transformers 4 secondary output ends, transformer secondary output output terminal also connect PLC controller and peripheral hardware through secondary relay 23 with the cut-off button of being connected, and the standby power supply circuit board connects manual cut-off button 22 through diode; The PLC controller also connects the control end of major and minor relay, and the two controls mutually the other side's normally closed contact major and minor relay.PC 9 is connected in the PLC controller 7 in each explosion-proof tank by 485 buses 12 and relevant X-over, and corresponding PLC controls corresponding air door, realizes long-range Comprehensive Control.
Native system mainly is comprised of elements such as PC 9, anti-explosion box body 14, explosion-proof button, anti-explosion fluorescent lamp, air door open and-shut mode sensor, anti-pinching inductive probe, explosion-proof solenoid valve, cylinders.PC 9 connects some PLC controllers through AF-P485 breakout box 10, external 5V power supply 11, RS485 bus 12, AF-C485/D485 telecommunication cable 13, and corresponding PLC controls corresponding air door, realizes long-range Comprehensive Control.Casing 14 is provided with platen 15, gland nut 16, handle 17, high-voltage connection terminal 18, low-voltage wiring terminal 19, inside and is provided with master control borad 20.Explosion-proof tank is installed on the middle side wall of twice air door.Air door open and-shut mode sensor is divided into two parts: sensing part and magnetic part, sensing part are installed on the doorframe, and magnetic part is installed on the door leaf, and by the motion of door leaf, magnetic part is close or leave the sensing part, gives the PLC input signal.Explosion-proof button is installed on the opposite of air door both sides door-hinge, after avoiding the pedestrian to press button opening the door, has little time to get out of the way the pinching pedestrian.Anti-pinching inductive probe is installed in the air door both sides, when having object to intercept, gives the PLC input signal, the gauge tap door.Cylinder is installed on air door inboard or the top in the outside, carries out interaction by connecting rod and air door.Explosion-proof solenoid valve is installed on the wall, is connected with cylinder by tracheae.Anti-explosion fluorescent lamp is installed on air door top conspicuous position, the open and-shut mode of indication air door.
Electrical schematic as shown in Figure 1.Usually 127V and 660V/1140V provide power supply simultaneously, and by PLC and relay, the control power supply switches in the middle of two-way, guarantees uninterrupted power source, and switching push button is set, and can manually press button, and power supply switches between 127V and 660V/1140V; View window is set, green light indication 127V power supply, red light indication 660/1140V power supply; Manual cut-off button is set, presses button, output disconnects, and can overhaul peripherals.The parts such as external explosion-proof button, air door open and-shut mode sensor, anti-pinching inductive probe provide signal to PLC, the open and close of control air door.External explosion-proof solenoid valve and cylinder, the open and close of control air door.External anti-explosion fluorescent lamp relay indicating light 5,6(pilot lamp 5,6 are indicated the Power supply situation in casing, anti-explosion fluorescent lamp is peripherals, indication air door open and-shut mode), indication door opening and closed condition.
The Long-distance Control connection layout as shown in Figure 2.PC by 485 and relevant X-over be connected among the PLC in each explosion-proof tank.Each PLC arranges different addresses, by inquire address, contacts with corresponding PLC, and then controls corresponding air door.Each signal setting malfunction makes things convenient for personnel to overhaul.
Explosion-proof tank such as Fig. 3,4. explosion-proof tank divides two chambeies, and one of them is wire connection cavity, and another is control chamber.Connect by connection terminal through walls.
This patent is applicable to have under the coal mine place of gas and coal dust explosion hazard.When pedestrian and mine car pass through air door, realize the keying of air door by the operation electric control gear.Can realize Long-distance Control and two kinds of standby power supplies selections.Guarantee that power supply in time switches on the standby power supply, is powered by standby power supply under the powering-off state.
1: realize Long-distance Control: aboveground operating personnel are according to the down-hole situation, by the open and close of control system macro adjustments and controls non-pressure damper.
2: standby power supply: down-hole electric-control system power supply is 127V usually, and when 127 outage, electric-control system lost efficacy immediately.So, increased a standby power supply, when 127V cut off the power supply, system switched to the standby power supply power supply immediately, and when 127V sent a telegram here, system automatically switched to again the 127V power supply.Like this, control system can not quit work because of having a power failure for the moment.
3: anti-pinching function: because personnel in the pit, vehicular movement are larger, when may close the door, personnel are arranged or vehicle passes through non-pressure damper, even or they see that air door will close, think with the speed of oneself and can pass through air door, thereby by force by air door, may exist like this people or vehicle by pinching at the air door place.A cover anti-pinch people sensor is installed in the air door both sides now, and in the process of closing the door, when having people or vehicle to pass through, air door is opened immediately, and personnel and vehicle are let pass.
4: manual power down function: when peripheral components need to overhaul, press manual cut-off button, stop power supply output, thereby peripheral components is overhauled.Avoid superior leader application outage, sent numerous and diverse formalities such as electric, increased staff's efficient, avoided outage to make troubles to mine.
Native system provides two kinds of Power supplies.When a kind of power cut-off wherein, system switches to another power supply immediately, avoids because in the situation of external power source outage the puzzlement that whole system lost efficacy.Remote control function, the whole control well lower wind door of easy operating personnel situation, when device damage is arranged, PC display alarm signal, operating personnel in time notify well servicing under the maintenance personal, shoot the arrow at the target, and increase work efficiency.Anti-pinching function has increased security, can not cause in the situation that air door closes, and people or car are sandwiched in air door central authorities, the accident that causes casualties or device damage.Manual power down function externally during device damage, is pressed manual cut-off button, can in time reprocess, and has avoided superior leader application outage, has sent numerous and diverse formality such as electricity, has improved staff's efficient, avoids outage to make troubles to mine.It is blank that industry has been filled up in design and use by this system, and simple in structure, easy operating has widely practicality in the art.
Claims (2)
1. mine flameproof and intrinsic safety type airdoor control electric-control system, it is characterized in that: comprise main power circuit plate and standby power supply circuit board, the main power circuit plate connects the PLC controller through the electrical source exchange button, and also the normal opened contact through the main relay controlled terminal connects PLC controller and peripheral hardware with the cut-off button of being connected; Standby power supply circuit board connection transformer secondary output end, transformer secondary output output terminal also connect PLC controller and peripheral hardware through secondary relay with the cut-off button of being connected, and the standby power supply circuit board connects manual cut-off button through diode; The PLC controller also connects the control end of major and minor relay, and the two controls mutually the other side's normally closed contact major and minor relay.
2. mine flameproof and intrinsic safety type airdoor control electric-control system according to claim 1 is characterized in that: PC is connected in the PLC controller in each explosion-proof tank by 485 buses and relevant X-over, and corresponding PLC controls corresponding air door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201962950U CN202837942U (en) | 2012-05-04 | 2012-05-04 | Mining flame-proof and intrinsically safe electronic control system for air door control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201962950U CN202837942U (en) | 2012-05-04 | 2012-05-04 | Mining flame-proof and intrinsically safe electronic control system for air door control |
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| Publication Number | Publication Date |
|---|---|
| CN202837942U true CN202837942U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201962950U Expired - Lifetime CN202837942U (en) | 2012-05-04 | 2012-05-04 | Mining flame-proof and intrinsically safe electronic control system for air door control |
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| CN (1) | CN202837942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681479A (en) * | 2012-05-04 | 2012-09-19 | 济南嘉宏科技有限责任公司 | Mining flame-proof and intrinsically safe electronic control system for air door control |
| CN104065155A (en) * | 2014-01-23 | 2014-09-24 | 行高中 | Dual-power conversion switch and dual-power conversion method |
-
2012
- 2012-05-04 CN CN2012201962950U patent/CN202837942U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681479A (en) * | 2012-05-04 | 2012-09-19 | 济南嘉宏科技有限责任公司 | Mining flame-proof and intrinsically safe electronic control system for air door control |
| CN104065155A (en) * | 2014-01-23 | 2014-09-24 | 行高中 | Dual-power conversion switch and dual-power conversion method |
| CN104065155B (en) * | 2014-01-23 | 2017-05-03 | 行高中 | Dual-power conversion switch and dual-power conversion method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |