CN214376868U - Early warning device of pressure-equalizing ventilation system - Google Patents
Early warning device of pressure-equalizing ventilation system Download PDFInfo
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- CN214376868U CN214376868U CN202120324377.8U CN202120324377U CN214376868U CN 214376868 U CN214376868 U CN 214376868U CN 202120324377 U CN202120324377 U CN 202120324377U CN 214376868 U CN214376868 U CN 214376868U
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Abstract
The application discloses voltage-sharing ventilation system early warning device, including monitoring substation, air door switch sensor, fan start-stop sensor and a plurality of alarm, air door switch sensor is used for monitoring the switching signal of adjacent voltage-sharing air door to send switching signal to the monitoring substation, the fan start-stop sensor is used for monitoring the start-stop state of voltage-sharing fan, and sends the start-stop state to the monitoring substation, and the monitoring substation is received switching signal and start-stop state, and according to all alarms of switching signal or start-stop state control work. Utilize this application can realize the automatic monitoring and the early warning of voltage-sharing ventilation system, avoid the artifical condition of louing examining, when voltage-sharing ventilation system breaks down moreover, can inform all staff through the alarm very first time, take emergency measures to strive for the valuable time for the staff, can reduce the potential safety hazard, improve the factor of safety of operation.
Description
Technical Field
The application relates to the technical field of coal, in particular to a pressure-equalizing ventilation system early warning device.
Background
The application of the pressure-equalizing ventilation system technology can effectively solve the low-oxygen problem of the coal face, the safety of the working environment of the coal face is improved, the workload of the communication and defense operators is greatly increased, the communication and defense operators need to check and maintain the integrity of the pressure-equalizing ventilation system facilities every shift, the condition of missed detection is easy to occur, and when the pressure-equalizing ventilation system facilities break down, all operators along the coal face and the two crossheading lines cannot be informed at the first time, and great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides an early warning device for a pressure equalizing ventilation system to solve the above technical problem.
The application provides a voltage-sharing ventilation system early warning device, it includes: the monitoring substation is electrically connected with the air door switch sensor, the fan start-stop sensor and the plurality of alarms, wherein the plurality of alarms are used for being installed on a fully mechanized mining working surface, a return air gateway and an auxiliary transportation gateway, the air door switch sensor is used for monitoring the opening and closing signals of adjacent pressure equalizing air doors and sending the opening and closing signals to the monitoring substation, the fan start-stop sensor is used for monitoring the start-stop state of the pressure equalizing fans and sending the start-stop state to the monitoring substation, the monitoring substation receives the opening and closing signals and the start-stop state and controls all the alarms to work according to the opening and closing signals or the start-stop state, and the monitoring substation is electrically connected with the air door switch sensor, the fan start-stop sensor and the plurality of alarms respectively.
Optionally, still include first pressure sensor and second pressure sensor, first pressure sensor is used for monitoring the inside pressure value in the pressure equalizing air door, and will inside pressure value sends to the monitoring substation, second pressure sensor is used for monitoring the outside pressure value outside the pressure equalizing air door, and will outside pressure value sends to the monitoring substation, the monitoring substation receives inside pressure value, outside pressure value, and according to switching signal, inside pressure value and outside pressure value control all alarms work, the monitoring substation is connected with first pressure sensor, second pressure sensor electricity respectively.
Optionally, the monitoring system further comprises an oxygen sensor, the oxygen sensor is used for monitoring an oxygen concentration value at a corner on the fully mechanized coal mining face and sending the oxygen concentration value to a monitoring substation, the monitoring substation receives the oxygen concentration value and controls all alarms to work according to the oxygen concentration value, and the monitoring substation is electrically connected with the oxygen sensor.
Optionally, the method further comprises: and the monitoring substation controls the voltage-sharing ventilation system to be powered off and all the alarms to work through the power-off instrument, and the power-off instrument is respectively electrically connected with the monitoring substation and the plurality of alarms.
Optionally, the system further comprises a ground dispatching monitoring station for receiving dispatching instructions, the monitoring substation sends the opening and closing signals, the internal pressure values, the external pressure values, the oxygen concentration values and the opening and closing states to the ground dispatching monitoring station, and the ground dispatching monitoring station is electrically connected with the monitoring substation.
Optionally, the monitoring substation is provided with at least six RS485 interfaces, all be provided with at least one RS485 interface on air door switch sensor, fan start-stop sensor, first pressure sensor, second pressure sensor, oxygen sensor, the outage appearance, the monitoring substation pass through RS485 communication cable respectively with air door switch sensor, fan start-stop sensor, first pressure sensor, second pressure sensor, oxygen sensor, outage appearance electricity are connected.
Optionally, every all be provided with the RS485 interface on the alarm, outage appearance and a plurality of alarm all connect through RS485 communication cable.
Optionally, the monitoring substation employs a programmable logic controller.
Optionally, the alarm is a voice alarm.
Optionally, adjacent audible alarms are equally spaced.
The application provides a voltage-sharing ventilation system early warning device is through setting up the monitoring substation, air door switch sensor, fan start-stop sensor and a plurality of alarm, the switching signal according to adjacent voltage-sharing air door monitored or the start-stop state control of voltage-sharing fan combine the working face, the alarm in return air crossheading and the subsidiary transport crossheading is reported to the police, can realize the automatic monitoring and the early warning of voltage-sharing ventilation system, avoid artifical condition of louing examining, and when voltage-sharing ventilation system broke down, can inform all staff through the alarm very first time, take emergency measure to strive for the staff valuable time, can reduce the potential safety hazard, improve the factor of safety of operation, and is simple in structure simultaneously, conveniently maintain the maintenance, can reduce the intensity of labour and the cost of maintaining, improve economic benefits.
Drawings
Fig. 1 is an installation schematic diagram of the pressure equalizing ventilation system early warning device.
Detailed Description
The technical solutions of the present application are described in detail below with reference to the accompanying drawings and specific embodiments. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Fig. 1 shows an installation schematic diagram of the pressure equalizing ventilation system early warning device. As shown in fig. 1, the application provides a voltage-sharing ventilation system early warning device, it includes: the system comprises a monitoring substation 1, an air door switch sensor 2, a fan start-stop sensor 3 and a plurality of alarms 4.
The air door switch sensor 2 is used for monitoring the opening and closing signals of the pressure equalizing air door 21 of the pressure equalizing ventilation system and sending the opening and closing signals to the monitoring substation 1.
The fan start-stop sensor 3 is used for monitoring the start-stop state of the pressure equalizing fan 31 and sending the start-stop state to the monitoring substation 1.
The monitoring substation 1 receives the opening and closing signal and the starting and stopping state and controls the alarm 4 to work according to the opening and closing signal or the starting and stopping state, and the monitoring substation 1 is electrically connected with the air door switch sensor 2, the fan starting and stopping sensor 3 and the alarm 4 respectively.
When the early warning device of the pressure-equalizing ventilation system works, the plurality of alarms 4 are respectively installed on the fully mechanized coal mining face, the return air crossheading and the auxiliary transportation crossheading.
As shown in fig. 1, a damper opening/closing sensor 2 is installed between the adjacent pressure equalizing dampers 21 of the auxiliary transport gateway and the return air gateway, respectively.
The air door switch sensor 2 is installed between adjacent voltage-sharing air doors 21, the voltage-sharing air doors 21 are generally installed in pairs, and the air door switch sensor 2 is installed between a pair of voltage-sharing air doors 21 and used for monitoring the opening and closing states of the pair of voltage-sharing air doors 21.
The air door switch sensor 2 monitors the opening and closing signals of the adjacent voltage-sharing air doors 21 of the voltage-sharing ventilation system and sends the opening and closing signals to the monitoring substation 1.
The fan start-stop sensor 3 is used for monitoring the start-stop state of the pressure equalizing fan 31 and sending the start-stop state to the monitoring substation 1.
When monitoring that the pressure equalizing air doors 21 on the two sides of the air door switch sensor 2 are opened at the same time, the monitoring substation 1 controls the alarm 4 to work to give an alarm.
When the voltage-sharing fan 31 is monitored to be out of order, the monitoring substation 1 can control the alarm 4 to work to give an alarm.
The application provides a voltage-sharing ventilation system early warning device is through setting up the monitoring substation, air door switch sensor, fan start-stop sensor and a plurality of alarm, the switching signal according to adjacent voltage-sharing air door monitored or the start-stop state control of voltage-sharing fan combine the working face, the alarm in return air crossheading and the subsidiary transport crossheading is reported to the police, can realize the automatic monitoring and the early warning of voltage-sharing ventilation system, avoid artifical condition of louing examining, and when voltage-sharing ventilation system broke down, can inform all staff through the alarm very first time, take emergency measure to strive for the staff valuable time, can reduce the potential safety hazard, improve the factor of safety of operation, and is simple in structure simultaneously, conveniently maintain the maintenance, can reduce the intensity of labour and the cost of maintaining, improve economic benefits.
Further, the pressure equalizing ventilation system early warning device also comprises a first pressure sensor 7 and a second pressure sensor 6.
As shown in fig. 1, the pressure equalizing dampers 21 in the auxiliary gateway and the return air gateway are respectively located between the first pressure sensor 7 and the second pressure sensor 6 in the respective gateways. Wherein, the side close to the fully mechanized mining face is the outside.
The first pressure sensor 7 is used for monitoring the internal pressure value in the pressure equalizing air door 21 and sending the internal pressure value to the monitoring substation 1.
The second pressure sensor 6 is used for monitoring an external pressure value outside the pressure equalizing air door 21 and sending the external pressure value to the monitoring substation 1.
The monitoring substation 1 receives the internal pressure value and the external pressure value, controls all the alarms 4 to work according to the opening and closing signals, the internal pressure value and the external pressure value, and is respectively electrically connected with the first pressure sensor 7 and the second pressure sensor 6.
When the adjacent equalizing air doors 21 are opened simultaneously and the difference value between the internal pressure value and the external pressure value exceeds the preset pressure difference, the monitoring substation 1 controls all the alarms 4 to alarm.
Through setting up first pressure sensor 7, second pressure sensor 6, whether the change of the internal and external pressure value of combination pressure-sharing air door 21 judges pressure-sharing air door 21 breaks down, can improve the accuracy of monitoring to early warning better.
Optionally, the early warning device of the pressure equalizing ventilation system further comprises an oxygen sensor 5, and the oxygen sensor 5 is configured to monitor an oxygen concentration value at a corner of the fully mechanized mining face and send the oxygen concentration value to the monitoring substation 1.
The monitoring substation 1 receives the oxygen concentration value and controls an alarm 4 to work according to the oxygen concentration value, and the monitoring substation 1 is electrically connected with an oxygen sensor 5.
When the oxygen concentration value of the fully mechanized mining face is smaller than a preset concentration value, the monitoring substation 1 controls all the alarms 4 to give an alarm.
Through setting up oxygen sensor 5, can avoid combining to adopt the working face to appear the hypoxemia condition, further improve the factor of safety of operation.
Preferably, the pressure equalizing ventilation system early warning device further comprises: and the monitoring substation 1 controls the voltage-sharing ventilation system to be powered off and the alarm 4 to work through the power-off instrument, and the power-off instrument is respectively and electrically connected with the monitoring substation 1 and the alarm 4.
When the condition that needs report to the police appears, monitoring substation 1 controls outage appearance action immediately, and voltage-sharing ventilation system cuts off the power supply. Meanwhile, the alarm 4 performs alarm operation after receiving a power-off signal of the power-off instrument.
Through setting up the outage appearance, can conveniently control voltage-sharing ventilation system outage and alarm 4 work.
Furthermore, the early warning device of the voltage-sharing ventilation system also comprises a ground dispatching monitoring station for receiving dispatching instructions.
The monitoring substation 1 sends the opening and closing signals, the internal pressure value, the external pressure value, the oxygen concentration value and the opening and closing state to a ground dispatching monitoring station, and the ground dispatching monitoring station is electrically connected with the monitoring substation 1.
The ground dispatching monitoring station is positioned on the ground surface, and workers can know the condition under a mine at the ground dispatching monitoring station and simultaneously send instructions such as voice alarm and the like to the monitoring substation 1.
Through setting up ground dispatch monitoring station, can make things convenient for the monitoring and the control of earth's surface staff to the mine down.
In a specific embodiment, the monitoring substation 1 is provided with at least six RS485 interfaces, and the air door switch sensor 2, the fan on-off sensor 3, the first pressure sensor 7, the second pressure sensor 6, the oxygen sensor 5 and the power-off instrument are all provided with at least one RS485 interface.
Monitoring substation 1 through RS485 communication cable 8 respectively with air door switch sensor 2, fan start/stop sensor 3, first pressure sensor 7, second pressure sensor 6, oxygen sensor 5, outage appearance electricity are connected to guarantee data transmission's stability.
Further, every all be provided with the RS485 interface on the alarm 4, outage appearance and a plurality of alarm 4 all connect through RS485 communication cable 8.
In one embodiment of the present application, the monitoring substation 1 employs a programmable logic controller to reduce the production cost.
In one embodiment of the present application, the alarm 4 is a voice alarm to reduce the production cost.
The programmable logic controller can realize the control function by the existing logic programming. Different alarm information is sent out by the voice alarm aiming at different conditions through programming.
For example, when the pressure equalizing damper 21 is in fault, the voice alarm gives out 'the fault of the pressure equalizing damper, please evacuate all people immediately'; when the voltage-sharing fan fails, the voice alarm sends out 'the voltage-sharing fan stops, and please evacuate all people immediately'; when the fully mechanized mining face is in hypoxia, the voice alarm gives out a voice alarm of 'fully mechanized mining face hypoxia, please face personnel to evacuate immediately'.
Furthermore, a plurality of voice alarms are connected in series, and the distance between every two adjacent voice alarms is equal. In the embodiment, a voice alarm is arranged in the fully mechanized mining face, the auxiliary transportation gateway and the return air gateway at intervals of about 50m so as to ensure that workers can receive alarm signals.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. The utility model provides a voltage-sharing ventilation system early warning device which characterized in that includes: the monitoring substation is electrically connected with the air door switch sensor, the fan start-stop sensor and the plurality of alarms, wherein the plurality of alarms are used for being installed on a fully mechanized mining working surface, a return air gateway and an auxiliary transportation gateway, the air door switch sensor is used for monitoring the opening and closing signals of adjacent pressure equalizing air doors and sending the opening and closing signals to the monitoring substation, the fan start-stop sensor is used for monitoring the start-stop state of the pressure equalizing fans and sending the start-stop state to the monitoring substation, the monitoring substation receives the opening and closing signals and the start-stop state and controls all the alarms to work according to the opening and closing signals or the start-stop state, and the monitoring substation is electrically connected with the air door switch sensor, the fan start-stop sensor and the plurality of alarms respectively.
2. The early warning device for the pressure equalizing ventilation system according to claim 1, further comprising a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is used for monitoring an internal pressure value inside the pressure equalizing air door and sending the internal pressure value to a monitoring substation, the second pressure sensor is used for monitoring an external pressure value outside the pressure equalizing air door and sending the external pressure value to the monitoring substation, the monitoring substation receives the internal pressure value and the external pressure value and controls all the alarms to work according to the opening and closing signals, the internal pressure value and the external pressure value, and the monitoring substation is electrically connected with the first pressure sensor and the second pressure sensor respectively.
3. The early warning device of the pressure equalizing ventilation system according to claim 2, further comprising an oxygen sensor, wherein the oxygen sensor is used for monitoring an oxygen concentration value at a corner of the fully mechanized mining face and sending the oxygen concentration value to a monitoring substation, the monitoring substation receives the oxygen concentration value and controls all the alarms to work according to the oxygen concentration value, and the monitoring substation is electrically connected with the oxygen sensor.
4. The early warning device for a pressure equalizing ventilation system according to claim 3, further comprising: and the monitoring substation controls the voltage-sharing ventilation system to be powered off and all the alarms to work through the power-off instrument, and the power-off instrument is respectively electrically connected with the monitoring substation and the plurality of alarms.
5. The early warning device for the voltage-sharing ventilation system according to claim 4, further comprising a ground dispatching monitoring station for receiving dispatching instructions, wherein the monitoring substation sends the opening and closing signals, the internal pressure values, the external pressure values, the oxygen concentration values and the starting and stopping states to the ground dispatching monitoring station, and the ground dispatching monitoring station is electrically connected with the monitoring substation.
6. The early warning device of the voltage-sharing ventilation system according to claim 5, wherein the monitoring substation is provided with at least six RS485 interfaces, the air door switch sensor, the fan on-off sensor, the first pressure sensor, the second pressure sensor, the oxygen sensor and the power-off instrument are all provided with at least one RS485 interface, and the monitoring substation is respectively electrically connected with the air door switch sensor, the fan on-off sensor, the first pressure sensor, the second pressure sensor, the oxygen sensor and the power-off instrument through RS485 communication cables.
7. The early warning device of the voltage-sharing ventilation system according to claim 6, wherein each alarm is provided with an RS485 interface, and the power failure instrument and the plurality of alarms are connected through RS485 communication cables.
8. The early warning device for the voltage-sharing ventilation system according to any one of claims 1 to 7, wherein the monitoring substation adopts a programmable logic controller.
9. The early warning device of a pressure equalizing ventilation system as claimed in any one of claims 1 to 7, wherein the alarm is a voice alarm.
10. The early warning device of a pressure equalizing ventilation system of claim 9, wherein adjacent audible alarms are equally spaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120324377.8U CN214376868U (en) | 2021-02-04 | 2021-02-04 | Early warning device of pressure-equalizing ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120324377.8U CN214376868U (en) | 2021-02-04 | 2021-02-04 | Early warning device of pressure-equalizing ventilation system |
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| Publication Number | Publication Date |
|---|---|
| CN214376868U true CN214376868U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120324377.8U Active CN214376868U (en) | 2021-02-04 | 2021-02-04 | Early warning device of pressure-equalizing ventilation system |
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| CN (1) | CN214376868U (en) |
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2021
- 2021-02-04 CN CN202120324377.8U patent/CN214376868U/en active Active
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