CN216925650U - Coal mine main fan monitoring system - Google Patents
Coal mine main fan monitoring system Download PDFInfo
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- CN216925650U CN216925650U CN202220241169.6U CN202220241169U CN216925650U CN 216925650 U CN216925650 U CN 216925650U CN 202220241169 U CN202220241169 U CN 202220241169U CN 216925650 U CN216925650 U CN 216925650U
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- photoelectric switch
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a coal mine main fan monitoring system which comprises a power supply assembly, a PLC (programmable logic controller), a temperature polling instrument, a first gateway, a 485 isolation module, a second gateway and a photoelectric switch, wherein the power supply assembly is connected with the PLC; the power supply assembly is used for supplying power to the coal mine main fan monitoring system; the input end of the temperature polling instrument is connected with the temperature sensor, the output end of the temperature polling instrument is connected with the input end of the first gateway, and the output end of the first gateway is connected with the input end of the photoelectric switch; the input end of the 485 isolation module is connected with an external sensor assembly, the output end of the 485 isolation module is connected with the input end of a second gateway, and the output end of the second gateway is connected with the input end of the photoelectric switch; and the output end of the photoelectric switch is connected with the input end of the PLC. The utility model provides a coal mine main fan monitoring system which transmits data collected by each sensor in fan monitoring in a unified and centralized manner, and is high in transmission efficiency, simple in structure and low in cost.
Description
Technical Field
The utility model relates to a coal mine main fan monitoring system.
Background
At present, a coal mine main fan is a main ventilator arranged on the ground of an air return shaft in a coal mine, and is used for ventilating the underground coal mine to keep the underground air relatively fresh. And coal mine main fans are usually distributed in remote areas of mining areas, coal mine managers are relatively loose in safety and production management of the coal mine main fans, and although a large amount of monitoring devices are used for monitoring the working state of the main fans in real time at present, the number of various detection devices and sensors is large due to the fact that a large number of data needing to be monitored are large, communication transmission modes of all the devices are different, and great difficulty is brought to centralized management of fan monitoring. The accidents of the main fan occur, such as broken shaft of the fan, overhigh running temperature of the fan, chamber sweeping of the fan blade and the like are not uncommon, and the life safety of mines and workers is seriously threatened.
When fan monitoring mainly used monitoring motor bearing temperature and motor stator temperature, the temperature sensor that needs the installation is more, sometimes reaches dozens of temperature sensor, and each sensor generally adopts RS485 communication. Similarly, a plurality of PLC modules are required to be arranged to detect the vibration sensor, the start/stop sensor, the wind speed sensor and the negative pressure sensor. At present, the price of the PLC on the market is generally higher, so that the PLC is required to be provided with more modules, the structure is complex, the price is high, and the manufacturing cost of manufacturers is increased.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a coal mine main fan monitoring system which transmits data collected by each sensor in fan monitoring in a unified and centralized manner, and has the advantages of high transmission efficiency, simple structure and low cost.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a coal mine main fan monitoring system comprises a power supply assembly, a PLC (programmable logic controller), a temperature polling instrument, a first gateway, a 485 isolation module, a second gateway and a photoelectric switch;
the power supply assembly is used for supplying power to the coal mine main fan monitoring system;
the input end of the temperature polling instrument is connected with the temperature sensor, the output end of the temperature polling instrument is connected with the input end of the first gateway, and the output end of the first gateway is connected with the input end of the photoelectric switch;
the input end of the 485 isolation module is connected with an external sensor assembly, the output end of the 485 isolation module is connected with the input end of a second gateway, and the output end of the second gateway is connected with the input end of the photoelectric switch;
and the output end of the photoelectric switch is connected with the input end of the PLC.
Further, power supply module includes circuit breaker, lightning protection device, first ACDC power module and second ACDC power module, the 220V alternating current is connected to the input of circuit breaker, the output of circuit breaker links to each other with the input of lightning protection device, the output of lightning protection device links to each other with first ACDC power module and second ACDC power module's input respectively, first ACDC power module is used for patrolling and examining appearance, first gateway and second gateway power supply for PLC controller, temperature, second ACDC power module is used for keeping apart module, photoelectric switch and external sensor subassembly power supply for 485.
Further, the coal mine main fan monitoring system further comprises a touch screen, and an output end of the touch screen is connected with an input end of the photoelectric switch.
Further, the external sensor assembly comprises a vibration sensor, a start-stop sensor, a wind speed sensor and a negative pressure sensor.
By adopting the technical scheme, the temperature patrol instrument acquires data of a plurality of temperature sensors, the RS485 signal of the temperature patrol instrument is converted into a network signal through the first gateway to be accessed into the photoelectric switch, the signal acquisition and isolation of other external sensor components are transmitted to the second gateway through the 485 isolation module, the RS485 signal of each sensor is converted into a network signal through the second gateway to be accessed into the photoelectric switch, and finally the photoelectric switch accesses the data into the PLC controller through a network cable. The utility model does not need to increase the module of the PLC controller, thereby greatly reducing the cost and simplifying the whole structure.
Drawings
Fig. 1 is a schematic block diagram of a coal mine main fan monitoring system of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1, the embodiment provides a coal mine main fan monitoring system, which is mainly used for monitoring a motor bearing temperature, a motor stator temperature, a motor amplitude, whether a motor is started, a main fan speed and a negative pressure. The coal mine main fan monitoring system comprises a power supply assembly, a PLC, a temperature patrol instrument, a first gateway, a 485 isolation module, a second gateway, a touch screen and a photoelectric switch, wherein the PLC of the embodiment adopts Siemens S7-1200.
Specifically, two temperature polling instruments are installed in the present embodiment, and one temperature polling instrument can collect data of 8-way and 16-way temperature sensors. The input of appearance is patrolled and examined to the temperature links to each other with temperature sensor, and the output of appearance is patrolled and examined to the temperature links to each other with the input of first gateway, and the output of first gateway links to each other with photoelectric switch's input. The RS485 output signal of the temperature polling instrument is converted into an Ethernet signal through the first gateway to be accessed into the photoelectric switch, and finally the photoelectric switch is accessed into the PLC controller, so that the signals of the plurality of temperature sensors can be collected to the PLC controller in a centralized manner.
Specifically, the external sensor subassembly in this embodiment includes vibration sensor, start-stop sensor, air velocity transducer and negative pressure sensor, and vibration sensor is used for detecting the motor amplitude, and start-stop sensor is used for detecting whether the motor is opened, and air velocity transducer is used for detecting the wind speed of main fan, and negative pressure sensor is used for detecting the negative pressure value behind the main fan convulsions. In this embodiment, the model of the 485 isolation module is scientific and intelligent control M-11C, the input end of the 485 isolation module is connected with the vibration sensor, the start-stop sensor, the wind speed sensor and the negative pressure sensor, the output end of the 485 isolation module is connected with the input end of the second gateway, and the output end of the second gateway is connected with the input end of the photoelectric switch. At first, isolate vibration sensor, start and stop sensor, air velocity transducer and negative pressure sensor's signal through 485 isolation module, isolate the module again by 485 and transmit signal to the second gateway, convert RS485 output signal into ethernet signal through the second gateway and insert photoelectric switch, insert the PLC controller by photoelectric switch at last, can concentrate the signal of a plurality of external sensor subassemblies and gather the PLC controller.
As shown in fig. 1, the power supply assembly of this embodiment is used for supplying power to a coal mine main fan monitoring system, and includes a circuit breaker, a lightning arrester, a first ACDC power module and a second ACDC power module, where the first ACDC power module and the second ACDC power module use an open-weft switching power supply EDR-120-24 to convert 220V alternating current into 24V direct current. 220V alternating current is connected to the input of circuit breaker, the output of circuit breaker links to each other with the input of lightning protection device, the output of lightning protection device links to each other with the input of first ACDC power module and second ACDC power module respectively, first ACDC power module is used for the PLC controller, the appearance is patrolled and examined to the temperature, first gateway and the power supply of second gateway, second ACDC power module is used for keeping apart the module for 485, photoelectric switch and external sensor subassembly power supply.
As shown in fig. 1, the output end of the touch screen of this embodiment is connected to the input end of the optoelectronic switch, and local display and control operations can be implemented through the touch screen, where the touch screen is a kunlun normal TPC1061Ti touch screen, and the touch screen is powered by the second ACDC power supply module.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A coal mine main fan monitoring system is characterized by comprising a power supply assembly, a PLC (programmable logic controller), a temperature polling instrument, a first gateway, a 485 isolation module, a second gateway and a photoelectric switch;
the power supply assembly is used for supplying power to the coal mine main fan monitoring system;
the input end of the temperature polling instrument is connected with the temperature sensor, the output end of the temperature polling instrument is connected with the input end of the first gateway, and the output end of the first gateway is connected with the input end of the photoelectric switch;
the input end of the 485 isolation module is connected with an external sensor assembly, the output end of the 485 isolation module is connected with the input end of a second gateway, and the output end of the second gateway is connected with the input end of the photoelectric switch;
and the output end of the photoelectric switch is connected with the input end of the PLC.
2. The coal mine main fan monitoring system according to claim 1, wherein: the power supply module comprises a circuit breaker, a lightning arrester, a first ACDC power module and a second ACDC power module, the input end of the circuit breaker is connected with a 220V alternating current, the output end of the circuit breaker is connected with the input end of the lightning arrester, the output end of the lightning arrester is respectively connected with the input ends of the first ACDC power module and the second ACDC power module, the first ACDC power module is used for supplying power for a PLC (programmable logic controller), a temperature patrol instrument, a first gateway and a second gateway, and the second ACDC power module is used for supplying power for a 485 isolation module, a photoelectric switch and an external sensor module.
3. The coal mine main fan monitoring system according to claim 1, wherein: the photoelectric switch further comprises a touch screen, and the output end of the touch screen is connected with the input end of the photoelectric switch.
4. The coal mine main fan monitoring system according to claim 1, wherein: the external sensor assembly comprises a vibration sensor, a start-stop sensor, a wind speed sensor and a negative pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241169.6U CN216925650U (en) | 2022-01-29 | 2022-01-29 | Coal mine main fan monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241169.6U CN216925650U (en) | 2022-01-29 | 2022-01-29 | Coal mine main fan monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216925650U true CN216925650U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220241169.6U Active CN216925650U (en) | 2022-01-29 | 2022-01-29 | Coal mine main fan monitoring system |
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| Country | Link |
|---|---|
| CN (1) | CN216925650U (en) |
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2022
- 2022-01-29 CN CN202220241169.6U patent/CN216925650U/en active Active
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