CN212154859U - Automatic control system for underground drainage of coal mine - Google Patents
Automatic control system for underground drainage of coal mine Download PDFInfo
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- CN212154859U CN212154859U CN201921860482.2U CN201921860482U CN212154859U CN 212154859 U CN212154859 U CN 212154859U CN 201921860482 U CN201921860482 U CN 201921860482U CN 212154859 U CN212154859 U CN 212154859U
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Abstract
The utility model discloses a colliery is drainage automated control system down. The method comprises the following steps: the system comprises a first layer of equipment layer, a second layer of control layer, a third layer of transmission layer and a fourth layer of management layer. The equipment layer consists of a sensor, an actuator and a camera; the control layer consists of a drainage controller; the transmission layer consists of a switch and an optical cable; the management layer is composed of an upper computer, a server, a sound, a router, an intranet/public network and a mobile phone. The control layer exchanges data with the equipment layer through the drainage controller and supplies power to various equipment in the equipment layer. The control layer is connected to the transmission layer exchanger through the exchanger built in the drainage controller, and the transmission layer is connected with the upper computer of the management layer and the server through the exchanger. The utility model provides a problem that the field connection that traditional drainage centralized control system PLC control box and combination switch separation brought is many, the maintenance volume is big, have on-the-spot audio frequency and video control, cell-phone APP information browse and alarming function, establish the basis for really realizing the unmanned on duty of pump house in the pit.
Description
Technical Field
The utility model relates to a drainage system's monitoring field especially involves a colliery automatic control system that drains down in pit.
Background
The underground coal mine drainage system is one of main working systems in coal mine production and plays an important role in coal mine safety. The automatic control of underground drainage is realized, so that the drainage efficiency is improved, and reliable safety guarantee is provided for the safety production of mines. At present, the underground water drainage system of a coal mine has the following problems: the underground drainage operation adopts a manual field operation mode, and the drainage quantity and the drainage time cannot be scientifically and reasonably scheduled; when an operator of the underground water pump arrives at the site, the water pump is started and stopped according to the numerical value of the visual inspection liquid level sensor, and the water pump cannot be started in time when the underground water quantity is increased suddenly, so that the water bin overflows; the traditional manually controlled drainage system has the problems of low reliability, low efficiency and difficulty in maintenance, data cannot be monitored, recorded and uploaded in real time, the system cannot be analyzed and checked from historical records after faults occur, and the problems of high-speed development of digitization and informatization cannot be solved.
In recent years, although a drainage centralized control system is applied to replace partial manual field work, certain problems still exist in actual operation: a single working principle sensor is adopted for liquid level monitoring (mostly a drop-in type liquid level sensor), and the condition of inaccurate data can occur under the influence of field water quality; the PLC control box and the combination switch are adopted to respectively carry out logic judgment and drive the water pump and the valve to start and stop, so that more field devices, more wiring and inconvenient maintenance are realized; although the data are uploaded to the industrial personal computer in the ground centralized control room, only the on-duty personnel in the centralized control room can see the data, and the managers cannot timely know the field situation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the single environmental impact that easily receives of traditional drainage centralized control system level sensor, the field connection that PLC control box and combination switch separation brought is many, the maintenance volume is big, and field data and equipment status can't in time be learnt the scheduling problem by managers.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
an automatic control system for underground drainage of a coal mine comprises four layers, wherein the first layer is an equipment layer, the second layer is a control layer, the third layer is a transmission layer, and the fourth layer is a management layer;
the device layer is used for acquiring field data, transmitting the field data to the control layer and receiving a command of the control layer to start and stop the device; the control layer is used for receiving the data of the device layer, processing and displaying the data, and uploading the data to the management layer through the transmission layer; the transmission layer is used for realizing data communication between the control layer and the management layer; and the management layer is used for receiving the data uploaded by the control layer through the transmission layer and realizing data storage, display, release and man-machine interaction.
The utility model discloses in, equipment layer includes sensor, executor and camera, and the sensor has level sensor, pressure sensor, temperature sensor, flow sensor, and the executor has electronic gate valve, electronic ball valve and water pump, and the camera is audio frequency and video integration cloud platform camera;
wherein, the sensor adopts two liquid level sensors with different measurement principles to measure the liquid level of the water sump;
in the utility model, the control layer comprises a drainage controller;
the drainage controller consists of a vacuum contactor, a switch, a comprehensive protector, a PLC, a switching power supply, a backup battery, a transformer and a touch screen.
In the utility model, the transmission layer comprises a switch and an optical cable;
the switches are connected through the first optical cable to form an Ethernet ring network.
The utility model discloses in, the management layer comprises host computer, server, stereo set, router, intranet/public network, cell-phone.
The upper computer software adopts configuration software, and the software can release data to the mobile phone APP through an intranet/public network through a router for a manager to check. The software can realize audio and video linkage of starting the water pump by combining with the camera.
Compared with the prior art, the utility model, it is showing the advantage and is: (1) the utility model discloses adopt the level sensor of two kinds of different measurement principles to carry out sump level measurement in the sensor under the equipment layer, can realize the accurate judgement of liquid level data. (2) The utility model discloses water controller under the control layer combines PLC, contactor, backup battery, switch, touch-sensitive screen etc. to be in the same place, can realize functions such as logic judgement, water pump and valve drive, sensor power supply, data transmission, and short duration outage also can normally maintain the system operation in the pit. (3) The utility model discloses the switch forms the optic fibre looped netowrk under the transmission layer, and certain switch damages and still can realize under other switches that data normally uploads. (4) The utility model discloses management layer host computer software has with data distribution to above the cell-phone APP, makes things convenient for managers to look over, combines the audio and video coordinated control that the appearance of making a video recording can realize the water pump and start simultaneously, can see the site conditions at ground centralized control room and hear the site sound, really realizes unmanned on duty.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an automatic control system for underground drainage of a coal mine;
FIG. 2 is a schematic view of the equipment layer equipment configuration of the underground coal mine drainage automatic control system;
FIG. 3 is a schematic view of the configuration of control layer equipment of the underground coal mine drainage automatic control system;
FIG. 4 is a schematic diagram of a process of releasing a mobile phone APP in a management layer of an underground coal mine drainage automatic control system;
FIG. 5 is a schematic view of an audio-video linkage process for starting a water pump of a management layer of an underground coal mine drainage automatic control system;
FIG. 6 is a schematic diagram of the arrangement of the prefabricated points when two water pumps of the underground coal mine drainage automatic control system are horizontally arranged.
Detailed Description
FIG. 1 is a schematic view of the overall structure of an automatic control system for underground drainage of a coal mine. The automatic control system for underground drainage of the coal mine comprises four layers, wherein the first layer is an equipment layer, the equipment layer comprises a sensor, an actuator and a camera, the sensor comprises a liquid level sensor, a pressure sensor, a temperature sensor and a flow sensor, the actuator comprises an electric gate valve, an electric ball valve and a water pump, and the camera is an audio and video integrated pan-tilt camera; the second layer is a control layer which comprises a drainage controller and is used for receiving the data of the equipment layer, processing and displaying the data and uploading the data to the management layer through the transmission layer; the third layer is a transmission layer, the transmission layer comprises a switch and an optical cable, and the transmission layer is used for realizing data communication between the control layer and the management layer; the fourth layer is a management layer, the management layer is composed of an upper computer, a server, a sound box, a router, an intranet/public network and a mobile phone, and the management layer is used for receiving data uploaded by the control layer through the transmission layer and realizing data storage, display, release and man-machine interaction. The control layer exchanges data with each device in the device layer through the drainage controller and supplies power to each device in the device layer. The control layer is connected to the transmission layer exchanger through the exchanger built in the drainage controller, and the transmission layer is connected with the upper computer of the management layer and the server through the exchanger.
FIG. 2 is a schematic view of the equipment layer configuration of the underground coal mine drainage automatic control system. A drainage pump room is used as a unit for explanation, each unit is generally provided with two drainage pumps 1 (a main pump and a standby pump), a throw-in type liquid level sensor 7, an ultrasonic liquid level sensor 8 and an audio and video pan-tilt camera 9, and each water pump is provided with a temperature sensor 2, two pressure sensors 3, two electric ball valves 4, an electric gate valve 5 and a flow sensor 6. The water sump liquid level is carried out real-time on-line measuring respectively by input level sensor 7 and ultrasonic wave level sensor 8, and flow sensor 6 is used for detecting the real-time flow when the water pump drainage, and pressure sensor 3 is used for detecting water pump gas vent pressure and water pump outlet pressure respectively, and electric ball valve 4 is used for carrying out water injection and exhaust to the water pump, and electric gate valve 5 is used for carrying out the drainage, and audio frequency cloud platform camera 9 is used for gathering on-the-spot video and audio information. The utility model discloses a level sensor of two kinds of different principles of input and ultrasonic wave carries out the detection of sump liquid level, uses not as the liquid level detection foundation with medium direct contact's ultrasonic wave level sensor when two sensor numerical values differ not greatly, when differed greatly, carries out the sensor by the manual work according to historical data or the site conditions and switches, can avoid the measured data that single sensor caused inaccurate like this.
FIG. 3 is a schematic view of the configuration of the control layer equipment of the underground coal mine drainage automatic control system. A drainage controller is taken as a unit for explanation, and each drainage controller consists of an explosion-proof shell 1, a vacuum contactor 2, an integrated protector 3, a transformer 4, a direct current power supply 5, a backup battery 6, a PLC7, a touch screen 8 and an exchanger 9. The external input 660V AC is connected through a bell mouth on the explosion-proof shell 1, one path of the external input 660V AC passes through the vacuum contactor 2 and then supplies power to the electric gate valve of the actuator through the bell mouth, and the comprehensive protector detects and protects the voltage and the current on the vacuum contactor; the other path of the voltage is reduced to 220V AC after passing through the transformer 4 and then is used as the input of the direct current power supply 5, the direct current power supply 5 changes the 220V AC into 24V DC, and the power is respectively supplied to the comprehensive protector 3, the PLC7, the touch screen 8 and the switch 9, and also supplied to the electric ball valve of the actuator and the camera. The backup battery 6 is used for supplying power to the direct current power supply when the external input is powered off. The PLC7 is the core of the entire drain controller, and is used to collect external signals including external sensor signals such as temperature signals of a water pump temperature sensor, pressure signals of water injection and exhaust pressure sensors, liquid level signals of drop-in and ultrasonic liquid level sensors, flow signals of a drain pipe flow sensor, and external actuator signals such as operation signals, fault signals, and in-place signals of an electric ball valve and an electric gate valve. On the other hand, data conversion, logical operation, and signal output are performed, and various signals are determined and then output to the actuator to operate. The touch screen 8 is connected with the PLC7 and is used for data display, fault alarm, man-machine interaction and the like. The switch 9 is connected with the PLC7 on one hand, and accesses an external camera signal on the other hand to realize data communication with upper-layer equipment.
The specific principle of automatic drainage control is as follows: when level sensor detected the water level and reachd the pump-opening water level, PLC sent the instruction and gave electric ball valve, and water injection and exhaust electric ball valve begin to start, and clear water pipeline carries out the water injection for the drain pump, and PLC carries out the water injection timing, and the drain pump gas vent begins the exhaust gas simultaneously, and gas vent pressure sensor carries out pressure detection. After the air has been discharged because of the water injection in the drain pump, water can spill over from the gas vent, and the pressure value that pressure sensor detected this moment is greater than the gas vent pressure that sets up, and PLC thinks that the drain pump water injection is full, and perhaps actual water injection time is greater than the water injection time that sets up, and PLC gives the instruction and gives electronic ball valve for water injection and exhaust electronic ball valve close. And the PLC simultaneously sends an instruction to the vacuum contactor, so that the vacuum contactor is switched on to drive the drainage pump to start. After the drainage pump is started, the PLC sends an instruction to the electric gate valve, the electric gate valve starts to be started, the water outlet pressure sensor starts to monitor drainage pressure, and the flow sensor starts to detect drainage flow. When the liquid level sensor detects that the water level drops to the pump stop water level, the PLC sends a pump stop instruction, the electric gate valve starts to be closed, when the PLC monitors that the electric gate valve is closed in place, a signal is sent to the vacuum contactor to be opened, and the drainage pump stops draining.
As shown in fig. 1, the management layer is composed of an upper computer, a server, a sound, a router, an intranet/public network, and a mobile phone. The upper computer software adopts configuration software, and the software can release a display picture to the mobile phone APP through an intranet/public network through a router for a manager to check. FIG. 4 is the management of the automatic control system for underground drainage of coal mineAnd the process schematic diagram of the layer mobile phone APP release. First, a project, usually a drainage system, is created in the configuration software. After the project is created, variables, namely various sensor signals and actuator signals, are created, and the variables need to be associated with data collected by the PLC. And opening the APP client development tool after the variable is created, and transmitting the variable to the development tool. And then, carrying out user authority configuration, namely opening different data browsing and data alarm authorities for different users. And then, opening the data port service by using the APP client development tool, so that the data is published. And finally, inputting a user name and a password on the mobile phone APP client for login, and checking real-time data and alarm data. FIG. 5 is a schematic view of an audio-video linkage process for starting a water pump of a management layer of an underground coal mine drainage automatic control system. Firstly, communication test is carried out, images and sounds of a camera are checked in the upper computer video software, and the communication is normal. And then, setting a prefabricated point in the upper computer video software, wherein FIG. 6 is a schematic diagram of the setting of the prefabricated point when two water pumps of the underground coal mine drainage automatic control system are horizontally arranged. Respectively setting a prefabricated point 1 and a prefabricated point 2 according to the position relation of the water pump and the camera, wherein the included angles between the prefabricated point 1 and the prefabricated point 2 and the horizontal direction and the vertical direction are alpha1、β1And alpha2、β2And adjusting to the preset point position in the graph in video software. Different scripting languages are then generated for different locations. And then configuring the picture in configuration software, and establishing a water pump video linkage picture. Next, variables are created in the screen, and a water pump 1 start signal variable 1 and a water pump 2 start signal variable 2 are created, respectively. And then, associating the water pump starting signal variables with respective script languages, transferring the camera to a preset point 1 when starting the water pump 1, and transferring the camera to a prefabricated point 2 when starting the water pump 2, so as to finally realize the audio and video linkage of the water pump starting.
The basic principles, main features, etc. of the present invention are shown above, which are only the preferred embodiments of the present invention, and are not intended to limit the present invention, it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (1)
1. The automatic control system for underground drainage of the coal mine is characterized by comprising four layers, wherein the first layer is an equipment layer, the second layer is a control layer, the third layer is a transmission layer, and the fourth layer is a management layer;
the device layer is used for acquiring field data, transmitting the field data to the control layer and receiving a command of the control layer to start and stop the device; the device comprises a sensor, an actuator and a camera, wherein the sensor comprises a liquid level sensor, a pressure sensor, a temperature sensor and a flow sensor, the actuator comprises an electric gate valve, an electric ball valve and a water pump, and the camera is an audio and video integrated pan-tilt camera;
the control layer is used for receiving the data of the device layer, processing and displaying the data, and uploading the data to the management layer through the transmission layer; comprises a drainage controller;
the drainage controller consists of a vacuum contactor, a switch, a comprehensive protector, a PLC, a switching power supply, a backup battery, a transformer and a touch screen;
the transmission layer is used for realizing data communication between the control layer and the management layer; the system comprises a switch and an optical cable;
the switches are connected end to end through optical cables to form an Ethernet ring network;
the management layer is used for receiving the data uploaded by the control layer through the transmission layer and realizing data storage, display, release and man-machine interaction; the management layer consists of an upper computer, a server, a sound, a router, an intranet/public network and a mobile phone;
the upper computer software adopts configuration software, and data is issued to the mobile phone APP through the router through an intranet/public network for being checked by management personnel;
and audio and video linkage of starting of the water pump is realized by combining the camera.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921860482.2U CN212154859U (en) | 2019-10-31 | 2019-10-31 | Automatic control system for underground drainage of coal mine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921860482.2U CN212154859U (en) | 2019-10-31 | 2019-10-31 | Automatic control system for underground drainage of coal mine |
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| CN212154859U true CN212154859U (en) | 2020-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112925368A (en) * | 2021-03-05 | 2021-06-08 | 徐州华讯科技有限公司 | Mine comprehensive automation device and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112925368A (en) * | 2021-03-05 | 2021-06-08 | 徐州华讯科技有限公司 | Mine comprehensive automation device and using method |
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