CN214623360U - Control system for underground local ventilator - Google Patents
Control system for underground local ventilator Download PDFInfo
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- CN214623360U CN214623360U CN202120903574.5U CN202120903574U CN214623360U CN 214623360 U CN214623360 U CN 214623360U CN 202120903574 U CN202120903574 U CN 202120903574U CN 214623360 U CN214623360 U CN 214623360U
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Abstract
The application discloses a control system of an underground local ventilator, which comprises a main control unit, a working face environment monitoring unit, a mechanical equipment monitoring unit, a fan control unit and a fan unit; the working surface environment monitoring unit is arranged in the working surface, and the mechanical equipment monitoring unit is arranged on the mechanical equipment; the fan control unit is in communication connection with the fan unit, and the main control unit is in communication connection with the working face environment monitoring unit, the mechanical equipment monitoring unit and the fan control unit respectively. The working face environment monitoring unit monitors the working face environment, the mechanical equipment monitoring unit monitors the working state of mechanical equipment, the main control unit acquires monitoring data of the working face environment monitoring unit and the mechanical equipment monitoring unit, a real-time control signal is output to the fan control unit according to the monitoring data and a preset control method, and the fan control unit receives and adjusts the air speed and the air quantity of the fan unit according to the real-time control signal, so that the automatic adjustment of the fan is realized.
Description
Technical Field
The application relates to the technical field of underground local ventilation systems, in particular to an underground local ventilation fan control system.
Background
At present, a local ventilation system under a mine generally uses a common motor, and once the local ventilation system is put into operation, the local ventilation system operates at rated air quantity and wind pressure to form a phenomenon of 'one wind blowing'. The air speed and the air quantity of the local ventilator in the ventilation system can not be automatically adjusted according to the concentration of the gas, scientific and effective control is not realized, when the concentration of the gas is suddenly increased, the local ventilation air quantity and the air speed can not meet the requirement of diluting the concentration of the gas, gas accumulation is easily caused, and great potential safety hazard exists; when the gas concentration is very low, the wind speed and the wind volume are still unchanged, and the great waste of electric energy is caused. In addition, in the current local ventilation system, the fault of the fan is mainly judged by underground workers, so that high requirements are provided for the experience of the workers, the problems of omission or misjudgment and the like are difficult to avoid by means of manual judgment, and huge hidden dangers are brought to the safety production of a coal mine.
SUMMERY OF THE UTILITY MODEL
The utility model provides an aim at overcome among the prior art not enough of local fan unable automatically regulated wind speed amount of wind in pit, provide one kind and can carry out automatically regulated's local fan control system in pit to local fan's wind speed amount of wind according to the environmental condition and the equipment operating condition of working face.
The technical scheme of the application provides a control system of an underground local ventilator, which comprises a main control unit, a working face environment monitoring unit, a mechanical equipment monitoring unit, a fan control unit and a fan unit;
the working surface environment monitoring unit is arranged in a working surface, and the mechanical equipment monitoring unit is arranged on mechanical equipment;
the fan control unit is in communication connection with the fan unit, and the main control unit is in communication connection with the working surface environment monitoring unit, the mechanical equipment monitoring unit and the fan control unit respectively.
Further, the working surface environment monitoring unit comprises an environment detection host, an air speed sensor for detecting air speed, a temperature sensor for detecting temperature, a humidity sensor for detecting humidity and a negative pressure sensor for detecting negative pressure;
the environment detection host is in communication connection with the main control unit, the wind speed sensor, the temperature sensor, the humidity sensor and the negative pressure sensor respectively.
Furthermore, the working surface environment monitoring unit also comprises a dust sensor for detecting the concentration of dust, a carbon monoxide sensor for detecting the concentration of carbon monoxide and a gas sensor for detecting the concentration of gas;
the environment detection host is respectively in communication connection with the dust sensor, the carbon monoxide sensor and the gas sensor.
Furthermore, the mechanical equipment monitoring unit comprises a mechanical equipment detection host, a vibration sensor for detecting the vibration amplitude of the equipment, a start-stop sensor for detecting the start and stop of the equipment, and a start-stop sensor for detecting the open and close of an air door of the equipment;
the mechanical equipment detection host is in communication connection with the main control unit, the vibration sensor, the start-stop sensor and the opening-closing sensor respectively.
Further, the fan unit includes a main local fan, a sub local fan, and a fan switching device for switching air supply to the main local fan and the sub local fan;
the fan switching device is in communication connection with the fan control unit, the main local ventilator and the auxiliary local ventilator respectively.
Further, the fan control unit is a variable frequency speed regulation device.
Furthermore, the main control unit comprises a ground controller arranged on the ground and an underground control substation arranged underground, the ground controller is in communication connection with the underground control substation, and the underground control substation is in communication connection with the working surface environment monitoring unit, the mechanical equipment monitoring unit and the fan control unit.
Furthermore, the main control unit also comprises a human-computer interaction device which is arranged on the ground and is in communication connection with the ground controller.
Furthermore, the ground controller is a programmable logic controller, and the human-computer interaction device is a touch screen.
Furthermore, the main control unit further comprises a master control machine and a video acquisition device used for acquiring videos of the working surface, the video acquisition device is installed on the working surface, the master control machine is arranged on the ground, and the master control machine is respectively in communication connection with the video acquisition device and the ground controller.
After adopting above-mentioned technical scheme, have following beneficial effect:
the working face environment monitoring unit monitors the working face environment, the mechanical equipment monitoring unit monitors the working state of mechanical equipment, the main control unit acquires monitoring data of the working face environment monitoring unit and the mechanical equipment monitoring unit, a real-time control signal is output to the fan control unit according to the monitoring data and a preset control method, and the fan control unit receives and adjusts the air speed and the air quantity of the fan unit according to the real-time control signal, so that the automatic adjustment of the fan is realized.
Drawings
The disclosure of the present application will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a schematic illustration of a downhole local ventilator control system in an embodiment of the present application;
FIG. 2 is a schematic diagram of a downhole local ventilator control system according to another embodiment of the present application.
Detailed Description
Embodiments of the present application are further described below with reference to the accompanying drawings.
It is easily understood that according to the technical solutions of the present application, those skilled in the art can substitute various structures and implementations without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present application, and should not be construed as limiting or restricting the technical solutions of the present application in their entirety.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The foregoing is to be understood as belonging to the specific meanings in the present application as appropriate to the person of ordinary skill in the art.
The control system of the downhole local ventilator in the embodiment of the present application, as shown in fig. 1, includes a main control unit 01, a working surface environment monitoring unit 02, a mechanical equipment monitoring unit 03, a fan control unit 04, and a fan unit 05;
the working surface environment monitoring unit 02 is arranged in the working surface, and the mechanical equipment monitoring unit 03 is arranged on mechanical equipment;
the fan control unit 04 is in communication connection with the fan unit 05, and the main control unit 01 is in communication connection with the working surface environment monitoring unit 02, the mechanical equipment monitoring unit 03 and the fan control unit 04 respectively.
Specifically, the working surface environment monitoring unit 02 collects environmental data information of the working surface in real time, including information such as temperature, humidity, wind speed, and concentrations of various hazardous gases; the mechanical equipment monitoring unit 03 collects the working state data information of the mechanical equipment on the working surface in real time, wherein the working state data information comprises equipment start-stop information, air door open-close state information and the like; the main control unit 01 serves as a control center, stores a local ventilator control method, can determine the wind speed and the wind volume of the local ventilator according to a preset local ventilator control method according to environmental data information detected by the working surface environment monitoring unit 02 and working state data information detected by the mechanical equipment monitoring unit 03, sends an operation signal to the ventilator control unit 04, and the ventilator control unit 04 adjusts the wind speed and the wind volume of the ventilator unit 05 according to the operation information.
The underground local ventilator control system in the embodiment of the application can automatically adjust the wind speed and the wind volume of the local ventilator according to the environment and the equipment running condition of the working face, can increase the wind volume under the conditions of overhigh temperature of the working face, overhigh concentration of dangerous gas in the air and the like, and can also reduce the wind volume under the conditions of shutdown, moderate temperature and the like of the working face equipment, so that the safety of the working face environment is ensured, and the energy conservation is also realized.
Further, as shown in fig. 2, the working surface environment monitoring unit 02 includes an environment detection host 21, an air speed sensor 22 for detecting an air speed, a temperature sensor 23 for detecting a temperature, a humidity sensor 24 for detecting a humidity, and a negative pressure sensor 25 for detecting a negative pressure;
the environment detection host 21 is in communication connection with the main control unit 01, the wind speed sensor 22, the temperature sensor 23, the humidity sensor 24, and the negative pressure sensor 25, respectively.
The environment detection host 21 acquires detection data of the wind speed sensor 22, the temperature sensor 23, the humidity sensor 24, and the negative pressure sensor 25, and transmits the detection data to the main control unit 01 in real time. The environment detection host 21 is used as a data transmission medium, collects the detection data and transmits the collected detection data to the main control unit 01, so that the number of data transmission channels is reduced.
Further, the working surface environment monitoring unit 02 further includes a dust sensor 26 for detecting a dust concentration, a carbon monoxide sensor 27 for detecting a carbon monoxide concentration, and a gas sensor 28 for detecting a gas concentration;
the environment detection host 21 is in communication connection with the dust sensor 26, the carbon monoxide sensor 27, and the gas sensor 28, respectively.
The dust sensor 26, the carbon monoxide sensor 27 and the gas sensor 28 detect the air on the working surface and transmit corresponding detection data to the main control unit 01 through the environment detection host 21 in real time, and the detection data is used for the main control unit 01 to regulate and control basic data of the local ventilator.
The dust sensor 26, the carbon monoxide sensor 27 and the gas sensor 28 may be respectively provided with two or more than two, and are dispersedly installed in each area of the working surface, and the environment detection host 21 calculates the average value and the maximum difference value of the data of each sensor according to a set rule and then uploads the data to the main control unit 01.
Further, as shown in fig. 2, the mechanical device monitoring unit 03 includes a mechanical device detecting host 31, a vibration sensor 32 for detecting the vibration amplitude of the device, a start/stop sensor 33 for detecting the start/stop of the device, and an open/close sensor 34 for detecting the opening/closing of an air door of the device;
the mechanical device detection host 31 is in communication connection with the main control unit 01, the vibration sensor 32, the start/stop sensor 33, and the open/close sensor 34, respectively.
Specifically, the vibration sensor 32 is installed at the periphery of a driving host of the equipment, and detects the vibration amplitude of the equipment; the start-stop sensor 33 can acquire the start-stop state of the device by detecting a device start-stop signal; the open/close sensor 34 is attached to the outlet of the damper of the equipment, and can detect the air volume to determine the opening/closing of the damper.
The mechanical equipment detection host 31 serves as a data transmission medium, collects detection data of the vibration sensor 32, the start-stop sensor 33 and the opening-closing sensor 34 and transmits the collected detection data to the main control unit 01, and the number of data transmission channels is reduced.
Further, as shown in fig. 2, the fan unit 05 includes a main local fan 51, a sub-local fan 52, and a fan switching device 53 for switching air supply to the main local fan 51 and the sub-local fan 52;
the fan switching device 53 is connected in communication with the fan control unit 04, the main local ventilator 51, and the sub local ventilator 52, respectively.
The fan unit 05 is provided with two local fans, a main local fan 51 and a sub-local fan 52, which are switched by a fan switching device 53, wherein the two local fans are used in a main mode and a standby mode, and when one fan fails, the other fan is started, so that the continuous operation of the ventilation system of the working face can be ensured.
The fan switching device 53 is connected between the main local fan 51, the sub-local fan 52, and the fan control unit 04 adjusts the air volume and the air speed of the main local fan 51 or the sub-local fan 52 by the fan switching device 53.
Further, the fan control unit 04 is a variable frequency speed control device.
Further, the main control unit 01 comprises a ground controller 11 arranged on the ground and an underground control substation 12 arranged underground, the ground controller 11 is in communication connection with the underground control substation 12, and the underground control substation 12 is in communication connection with the working surface environment monitoring unit 02, the mechanical equipment monitoring unit 03 and the fan control unit 04.
The underground control substation 12 is used as a transmission medium of control signals, information transmission between the working face environment monitoring unit 02, the mechanical equipment monitoring unit 03 and the fan control unit 04 and between the ground controller 11 is realized, due to the special underground environment, information transmission between the underground control substation 12 and the working face environment monitoring unit 02, the mechanical equipment monitoring unit 03 and the fan control unit 04 is transmitted through an underground communication system, the stability of information transmission can be ensured, and signals between the ground controller 11 and the working face environment monitoring unit 02, the mechanical equipment monitoring unit 03 and the fan control unit 04 can be effectively transmitted.
Further, as shown in fig. 2, the main control unit 01 further includes a human-computer interaction device 13, and the human-computer interaction device 13 is disposed on the well and is in communication connection with the ground controller 11. Preferably, the ground controller 11 is a Programmable Logic Controller (PLC), and the human-computer interaction device 13 is a touch screen.
The programmable logic controller is stored with an executive program, the detection data of the environment detection host 21 and the mechanical equipment detection host 31 are input into the input end of the programmable logic controller, and the programmable logic controller outputs the control signal of the fan control unit 04 to the output end; the touch screen can display the execution program in the programmable logic controller, and workers can modify the execution program through the touch screen to realize real-time adjustment and optimization of the program.
Further, as shown in fig. 2, the main control unit 01 further includes a master control machine 14 and a video acquisition device 15 for acquiring a working surface video, the video acquisition device 15 is installed on the working surface, the master control machine 14 is installed on the well, and the master control machine 14 is in communication connection with the video acquisition device 15 and the ground controller 11 respectively.
Video acquisition device 15 includes a plurality of high definition digtal cameras, and high definition digtal camera installs on the working face, gathers the operating condition of auxiliary ventilating fan in the working face to transmit the video information that high definition digtal camera gathered to ground assembly accuse machine 14 on. Preferably, the video information can also be transmitted to the surface controller 11 through the underground control substation 12 and then transmitted to the surface main control machine 14, so as to ensure the stability of information transmission.
The general control machine 14 can adopt an industrial personal computer, and comprises a processor, a keyboard and a display screen, wherein the keyboard and the display screen are in communication connection with the processor, the processor is in communication connection with the ground controller 11, a worker can check the execution state of the ground controller 11 through the display screen, and the display screen can also display video information acquired by the video acquisition device 15 through adjusting and optimizing the execution program of the ground controller 11 through the keyboard.
In the control system of the underground local ventilator in the embodiment of the application, the working surface environment monitoring unit 02 and the mechanical equipment monitoring unit 03 which are installed on the working surface are used for acquiring the environment state and the equipment working state of the working surface, the acquired information is transmitted to the ground controller 11 through the underground control substation 12, the ground controller 11 analyzes the information and then feeds back a fan control signal, the fan control information is transmitted to the fan control unit 04 through the underground control substation 12, and the air volume and the air speed of the local ventilator are adjusted by the fan control unit 04; the automatic adjustment of the local ventilator is realized; the main control machine 14 and the video acquisition device 15 are arranged to monitor the working state of the local ventilator in real time, the underground local ventilator can be monitored and adjusted on the ground, and remote control is realized,
What has been described above is merely the principles and preferred embodiments of the present application. It should be noted that, for those skilled in the art, the embodiments obtained by appropriately combining the technical solutions respectively disclosed in the different embodiments are also included in the technical scope of the present invention, and several other modifications may be made on the basis of the principle of the present application and should be regarded as the protective scope of the present application.
Claims (10)
1. A control system of a downhole local ventilator is characterized by comprising a main control unit, a working face environment monitoring unit, a mechanical equipment monitoring unit, a fan control unit and a fan unit;
the working surface environment monitoring unit is arranged in a working surface, and the mechanical equipment monitoring unit is arranged on mechanical equipment;
the fan control unit is in communication connection with the fan unit, and the main control unit is in communication connection with the working surface environment monitoring unit, the mechanical equipment monitoring unit and the fan control unit respectively.
2. The control system of the downhole local ventilator according to claim 1, wherein the working surface environment monitoring unit comprises an environment detection host, and a wind speed sensor for detecting wind speed, a temperature sensor for detecting temperature, a humidity sensor for detecting humidity, a negative pressure sensor for detecting negative pressure;
the environment detection host is in communication connection with the main control unit, the wind speed sensor, the temperature sensor, the humidity sensor and the negative pressure sensor respectively.
3. The downhole local ventilator control system of claim 2 wherein the worksurface environment monitoring unit further comprises a dust sensor for detecting dust concentration, a carbon monoxide sensor for detecting carbon monoxide concentration, and a gas sensor for detecting gas concentration;
the environment detection host is respectively in communication connection with the dust sensor, the carbon monoxide sensor and the gas sensor.
4. The control system of the underground local ventilator according to claim 1, wherein the mechanical equipment monitoring unit comprises a mechanical equipment detection host, a vibration sensor for detecting the vibration amplitude of the equipment, a start-stop sensor for detecting the start and stop of the equipment, and an open-close sensor for detecting the open and close of an air door of the equipment;
the mechanical equipment detection host is in communication connection with the main control unit, the vibration sensor, the start-stop sensor and the opening-closing sensor respectively.
5. The downhole local ventilator control system of claim 1, wherein the fan unit comprises a main local ventilator, a sub local ventilator, and a fan switching device for switching air supply to the main local ventilator and the sub local ventilator;
the fan switching device is in communication connection with the fan control unit, the main local ventilator and the auxiliary local ventilator respectively.
6. A downhole local ventilator control system according to claim 5 wherein the fan control unit is a variable frequency speed regulation device.
7. The system of any one of claims 1 to 6, wherein the master control unit comprises a surface controller disposed uphole and a downhole control substation disposed downhole, the surface controller being in communication with the downhole control substation, the downhole control substation being in communication with the working surface environment monitoring unit, the mechanical equipment monitoring unit, and the fan control unit.
8. A downhole local ventilator control system in accordance with claim 7 wherein said master control unit further comprises a human-machine interaction device disposed uphole and in communicative connection with said surface controller.
9. The downhole local ventilator control system of claim 8 wherein said surface controller is a programmable logic controller and said human-computer interaction device is a touch screen.
10. The downhole local ventilator control system according to claim 7, wherein the master control unit further comprises a master control machine and a video acquisition device for acquiring a working surface video, the video acquisition device is installed on a working surface, the master control machine is installed on the well, and the master control machine is respectively in communication connection with the video acquisition device and the ground controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120903574.5U CN214623360U (en) | 2021-04-28 | 2021-04-28 | Control system for underground local ventilator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120903574.5U CN214623360U (en) | 2021-04-28 | 2021-04-28 | Control system for underground local ventilator |
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| CN214623360U true CN214623360U (en) | 2021-11-05 |
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| CN202120903574.5U Active CN214623360U (en) | 2021-04-28 | 2021-04-28 | Control system for underground local ventilator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151123A (en) * | 2021-11-26 | 2022-03-08 | 西安重装韩城煤矿机械有限公司 | Intelligent monitoring system for local ventilator of coal mine |
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2021
- 2021-04-28 CN CN202120903574.5U patent/CN214623360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151123A (en) * | 2021-11-26 | 2022-03-08 | 西安重装韩城煤矿机械有限公司 | Intelligent monitoring system for local ventilator of coal mine |
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