CN112286239A - Coal mine underground water silo intelligent drainage control system based on big data - Google Patents
Coal mine underground water silo intelligent drainage control system based on big data Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 498
- 239000003245 coal Substances 0.000 title claims abstract description 77
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 238000005086 pumping Methods 0.000 claims description 33
- 238000004891 communication Methods 0.000 claims description 31
- 238000007639 printing Methods 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- G—PHYSICS
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a coal mine underground water sump intelligent drainage control system based on big data, which is used for solving the problems that the working capacity and the working state of a water pump body are not inspected by detecting technical parameters of the water pump body and different water pumps with different water level heights are not adopted for drainage in the prior art, and the invention is provided with a first liquid level sensor and a second liquid level sensor, through acquisition quantity comparison, when the acquired data difference is larger, an alarm instruction is sent to an alarm module to drive the alarm to give an alarm, and when the acquired data value is within an allowable error range, the water level value acquired by the first liquid level sensor is taken as a standard to be sent to a control module, so that the acquisition error of the liquid level sensor is reduced and timely overhaul is carried out; the number of the started water pumps is judged according to the water level acquired secondarily, and when the water level exceeds the early warning limit value, all the water pumps are directly started, so that water can be quickly pumped and drained, electric energy can be saved, and the purpose of saving energy is achieved.
Description
Technical Field
The invention relates to a drainage control system, in particular to a coal mine underground water silo intelligent drainage control system based on big data, and belongs to the technical field of coal mine underground water silo intelligent drainage.
Background
At present, with the rapid development of control theory and automation technology, the PLC control module is widely applied to the field of industrial control, so that the automation control of mine drainage is possible. The automatic drainage application can liberate labor force, so that the drainage water pump can operate intelligently, and the optimal drainage function is realized.
Patent CN109343456A discloses a mine drainage control system, including man-machine interaction module, a control module, frequency conversion control module, level sensor and water pump unit, level sensor monitors mine water level information and transmits to control module, control module controls the operation of water pump unit through frequency conversion control module, man-machine interaction module and control module communication are connected, man-machine interaction module shows the control frequency, the running speed, control voltage and the control current information of mine water level information and water pump unit motor, and to the operation control command of water pump unit of control module transmission. The system overcomes the defects of the traditional mine drainage, effectively reduces the energy consumption of the mine drainage, improves the precision of drainage control, reduces the workload of field control, lays the foundation of digital control for the mine drainage, and improves the mining operation efficiency of the mine.
The invention has the defects that the underground environment of a coal mine is special, a single liquid level sensor often has liquid level detection errors, the working capacity and the working state of a water pump body are not inspected by detecting the technical parameters of the water pump body, and different numbers of water pumps are not adopted for different water level heights for drainage.
Disclosure of Invention
The invention aims to provide a coal mine underground water sump intelligent drainage control system based on big data, which is used for solving the problems that the working capacity and the working state of a water pump body are not inspected by detecting technical parameters of the water pump body and different water pumps with different water level heights are not adopted for drainage in the prior art; the number of the started water pumps is judged according to the water level acquired for the second time, and when the water level exceeds the early warning limit value, all the water pumps are directly started, so that not only can water be quickly pumped and drained, but also the electric energy can be saved, and the purpose of saving energy is achieved;
according to the invention, the pipeline pressure of the water pump, the temperature of a water pump motor bearing, the real-time current of the water pump and the real-time voltage of the water pump are obtained, the current running state value Zk of the water pump is calculated through a formula, and if the current running state value Zk of the water pump is greater than a preset running state threshold value, the water pump is switched to pump water; if the current running state value Zk of the water pump is smaller than the preset running state threshold value, the currently acquired pipeline pressure, the temperature of a water pump motor bearing, the real-time current of the water pump, the real-time voltage of the water pump and the running state value Zk of the water pump are sent to a server through a communication module to be stored, and the water pump fault caused by long-time working of one water pump can be effectively avoided.
The purpose of the invention can be realized by the following technical scheme:
a coal mine underground water silo intelligent drainage control system based on big data comprises an acquisition module, a control module, a server, an alarm module, a distribution module, a management module, a printing module and a communication module;
the control module is used for controlling the water pump to automatically drain water, and the specific control method comprises the following steps:
the method comprises the following steps: acquiring the position of a coal mine underground water sump, and marking the coal mine underground water sump as i;
step two: respectively acquiring the water levels of underground water bins of the coal mine, sending the water level numerical values to a control module, and marking the water level numerical values as Hi by the control module after the control module receives the water level numerical values;
step three: respectively setting a water level early warning lower limit value and an early warning limit value of a coal mine underground water sump, and respectively marking the water level early warning lower limit value and the early warning limit value as Yxi and Yji, wherein Yxi is less than Yji;
step four: if Hi is less than Yxi, directly sending the water level value of the underground water sump of the coal mine to a server through a communication module for storage;
if Yyi < Hi < Yji, sending a water pumping instruction to the distribution module, and sending the water level value of the underground water sump of the coal mine to the server for storage through the communication module;
if Yji < Hi, sending an alarm instruction to an alarm module, simultaneously sending a pumping instruction to a distribution module, and sending the water level value of the underground water sump of the coal mine to a server for storage through a communication module;
step five: the distribution module performs water pump distribution and pumping after receiving the pumping instruction, and the alarm module drives the alarm to alarm after receiving the alarm instruction;
the distribution module is used for distributing water pumps in the coal mine underground water sump to pump water, and the specific distribution mode comprises the following steps:
t1: after the distribution module receives the water pumping instruction, the distribution module randomly starts a water pump to pump water and sends a secondary acquisition instruction to the acquisition module;
t2: after the acquisition module receives a secondary acquisition instruction, the liquid level sensor is controlled in a timing mode to monitor the water level, and the monitored water level value is marked as Hi';
t3: if Hi' is less than Hi, maintaining the current situation, and controlling a water pump to pump water;
if Hi ' is greater than Hi, adding a water pump to pump water, and regularly controlling the liquid level sensor to monitor the water level until Hi ' is less than Hi, and stopping pumping water by the water pump when Hi ' is less than Yxi;
t4: if the distribution module receives a water pumping instruction and the alarm module gives an alarm, all the water pumps are directly started to pump water;
the management module is used for managing a water pump in a coal mine underground water silo, and the management steps are as follows:
s1: acquiring pipeline pressure, water pump motor bearing temperature, water pump real-time current and water pump real-time voltage when a current water pump works, and sending the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage to a management module;
s2: after receiving the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage, the management module marks the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage as Pk, Tk, Ik and Uk respectively;
s3: calculating the running state value Zk of the current water pump by using a formula;
is calculated by the formula
Wherein a1, a2, a3 and a4 are fixed values of preset proportionality coefficients;
s4: if the current running state value Zk of the water pump is larger than the preset running state threshold value, switching the water pump to pump water, and sending the currently acquired pipeline pressure, the temperature of a water pump motor bearing, the real-time current of the water pump, the real-time voltage of the water pump and the running state value Zk of the water pump to a server through a communication module for storage;
and if the current running state value Zk of the water pump is smaller than the preset running state threshold value, sending the currently acquired pipeline pressure, the temperature of a bearing of a water pump motor, the real-time current of the water pump, the real-time voltage of the water pump and the running state value Zk of the water pump to a server through a communication module for storage.
Preferably, the acquisition module comprises a first liquid level sensor and a second liquid level sensor, through acquisition quantity comparison, when the acquired data difference value is large, an alarm instruction is sent to the alarm module to drive the alarm to give an alarm, and when the acquired data value is within an allowable error range, the water level value acquired by the first liquid level sensor is taken as a standard to be sent to the control module.
Preferably, the system further comprises a monitoring module, the monitoring module is specifically an explosion-proof camera installed in the underground water sump of the coal mine, the explosion-proof camera is used for shooting the water level and the running condition of the water pump in each underground water sump of the coal mine, and the EPON video technology is adopted to send the collected video signals to the server for storage through the communication module.
Preferably, the system also comprises a switching module for switching manual control and automatic control, wherein the automatic control is mainly used for automatically detecting the water level of the underground water sump of the coal mine and automatically controlling water pumping and drainage; due to the special underground environment of the coal mine, the liquid level sensor and the explosion-proof camera need to be overhauled and cleaned regularly; the water quality of the mine sump is poor, the sludge is more, the water pump cannot be normally used, when the water quality is poor, the manual control mode is started, and the switching time cannot exceed five minutes.
Preferably, the acquisition module further comprises a pressure sensor, a temperature sensor, a current transformer, a voltage transformer and a power supply, wherein the power supply supplies power to the pressure sensor, the temperature sensor, the current transformer, the voltage transformer, the first liquid level sensor and the second liquid level sensor.
Preferably, the server is used for storing data, the stored data includes the water level Hi of the water sump, the water level Hi' acquired for the second time, the pipeline pressure Pk, the water pump motor bearing temperature Tk, the water pump real-time current Ik, the water pump real-time voltage Uk and the running state value Zk, and the stored data is generated into a report.
Preferably, the system further comprises a printing module, wherein the printing module is used for printing reports generated by the server, and the reports comprise a water level daily duty report, a water level alarm daily report and a water pump state daily report.
Preferably, the system further comprises a statistic module, wherein the statistic module is used for counting the total water discharge amount per day, the operation time of the water pump per day and the alarm times per day.
Preferably, the system further comprises a display module, wherein the display module is used for displaying the following contents:
1. the data display content should include: the water level value, the secondarily collected water level value, the water level early warning lower limit value, the early warning limit value, the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current, the water pump real-time voltage, the running state value of the water pump, the water pump starting times, the sensor working state, the warning and warning-releasing state and time;
2. display system device layout: the display content should include: the device names, relative positions and operation states of devices such as a pressure sensor, a temperature sensor, a current transformer, a voltage transformer, a first liquid level sensor, a second liquid level sensor, a water pump, an explosion-proof camera and the like can be roamed, paged or partially amplified in a general diagram if a huge display screen of the system cannot be accommodated.
Preferably, the water pump is a mobile water pump and comprises mobile wheels, a trailer rear side plate, a rotary motor, a switch button, a connecting block, a water outlet flange, a pump disc, a water inlet flange, a dragging block, a water pump base, a trailer front side plate, a trailer bottom plate, a dragging hole, a water pump body, a motor base, a mounting hole, a bolt, an output shaft, an impeller, a radial ball bearing, a stop washer and a round nut, wherein the water pump base is mounted on the upper side of the trailer bottom plate, the motor base is mounted on the upper side of the trailer bottom plate, and the water pump body is mounted on the upper side of the water;
the water pump body comprises a rotating motor, a switch button is installed on the upper side of the rotating motor, a connecting block is installed on the surface of the rotating motor, a mounting hole is formed in the connecting block, the rotating motor is installed on the upper side of a motor base, one end of the connecting block is fixed on the surface of the rotating motor, the other end of the connecting block is connected with a pump disc through a bolt, a water outlet flange is installed at the upper end of the pump disc, a water outlet is formed in the water outlet flange, a water inlet flange is installed on one side, away from the rotating motor, of the pump disc, a water inlet is formed in the water inlet flange, an output shaft is installed in the rotating motor, an impeller is installed in the pump disc, a radial ball bearing is installed in the pump disc, the output shaft penetrates through the radial ball, a stop washer is arranged outside the radial ball bearing, and a round nut is arranged outside the stop washer;
the trailer bottom plate is connected with trailer front side board and trailer rear side board, trailer bottom plate downside four corners department installs the removal wheel, trailer front side board surface mounting has the dragging piece, the inside dragging hole of having seted up of dragging the piece.
Preferably, the water flow channel inside the water pump body and the surface of the water pump body are coated with anti-corrosion materials; the connecting block is connected with the pump disc through a bolt, and a sealing washer is arranged at the connecting position; and the flange surfaces of the water outlet flange and the water inlet flange are provided with connecting holes.
Compared with the prior art, the invention has the beneficial effects that:
1. the unmanned and intelligent drainage of the water sump is realized. Acquiring the water level of a coal mine underground water sump, sending a water level numerical value to a control module, and marking the water level numerical value as Hi by the control module after receiving the water level numerical value; by comparing the water level value with the water level early warning lower limit value and the early warning limit value of the underground water sump of the coal mine, the drainage is automatically carried out and the pump is stopped in time, so that the water sump of each mining area is unattended, and the labor intensity and the labor cost are reduced.
2. And monitoring the motor and pump set data in real time. Respectively marking the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage as Pk, Tk, Ik and Uk when the current water pump works; the running state value Zk of the current water pump is obtained through calculation, and then the running state value Zk of the current water pump is compared with the preset running state threshold value, so that the damage of the water pump caused by the overlong use time of one water pump can be avoided, the function of automatically stopping the pump is realized, resources are effectively utilized, and the running period of equipment is prolonged.
3. The automatic control system is mainly used for automatic detection of the water level of the underground water sump of the coal mine and automatic control of water pumping and drainage; due to the special underground environment of the coal mine, the liquid level sensor and the explosion-proof camera need to be overhauled and cleaned regularly; the mine sump has the advantages that water quality is poor, sludge is more, the water pump cannot be normally used, when the water pump cannot be normally used, the manual control mode is started, switching time cannot exceed five minutes, and safety accidents caused by errors of lines or procedures are avoided.
4. And real-time remote video monitoring is realized. The monitoring module is an explosion-proof camera installed in the underground water sump of the coal mine, the explosion-proof camera is used for shooting water levels and water pump running conditions in the underground water sumps of the coal mine, an EPON network video technology is adopted, collected video signals are sent to the server through the communication module to be stored, technicians can visually see the working conditions of equipment and the geological conditions of the water sumps, and the on-site drainage system can be timely and remotely scheduled and maintained.
5. According to the invention, through the arrangement of the first liquid level sensor and the second liquid level sensor, through acquisition quantity comparison, when the acquired data difference value is larger, an alarm instruction is sent to the alarm module to drive the alarm to give an alarm, and when the acquired data value is within an allowable error range, the water level value acquired by the first liquid level sensor is taken as a standard and sent to the control module, so that the acquisition error of the liquid level sensor is reduced, and timely maintenance is carried out.
6. The trailer bottom plate of the mobile water pump is connected with a trailer front side plate and a trailer rear side plate, four corners of the lower side of the trailer bottom plate are provided with mobile wheels, the surface of the trailer front side plate is provided with a dragging block, the interior of the dragging block is provided with a dragging hole, the mobile wheels are rubber wheels, the mobile water pump can be suitable for different underground coal mine road surface environments, the mobile water pump is provided with the dragging block, the interior of the dragging block is provided with the dragging hole, and under the condition of poor road surface environment, the mobile water pump can be moved conveniently by adopting a mode of combining artificial pushing; the water flow channel inside the water pump body and the surface of the water pump body are coated with the anti-corrosion material, and the anti-corrosion material can effectively prevent the mobile water pump from being corroded, so that the service life of the mobile water pump is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic block diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the intelligent drainage control system for the coal mine underground water sump based on big data comprises an acquisition module, a control module, a server, an alarm module, a distribution module, a management module, a printing module and a communication module;
the control module is used for controlling the water pump to automatically drain water, and the specific control method comprises the following steps:
the method comprises the following steps: acquiring the position of a coal mine underground water sump, and marking the coal mine underground water sump as i;
step two: respectively acquiring the water levels of underground water bins of the coal mine, sending the water level numerical values to a control module, and marking the water level numerical values as Hi by the control module after the control module receives the water level numerical values;
step three: respectively setting a water level early warning lower limit value and an early warning limit value of a coal mine underground water sump, and respectively marking the water level early warning lower limit value and the early warning limit value as Yxi and Yji, wherein Yxi is less than Yji;
step four: if Hi is less than Yxi, directly sending the water level value of the underground water sump of the coal mine to a server through a communication module for storage;
if Yyi < Hi < Yji, sending a water pumping instruction to the distribution module, and sending the water level value of the underground water sump of the coal mine to the server for storage through the communication module;
if Yji < Hi, sending an alarm instruction to an alarm module, simultaneously sending a pumping instruction to a distribution module, and sending the water level value of the underground water sump of the coal mine to a server for storage through a communication module;
step five: the distribution module performs water pump distribution and pumping after receiving the pumping instruction, and the alarm module drives the alarm to alarm after receiving the alarm instruction;
the distribution module is used for distributing water pumps in the coal mine underground water sump to pump water, and the specific distribution mode comprises the following steps:
t1: after the distribution module receives the water pumping instruction, the distribution module randomly starts a water pump to pump water and sends a secondary acquisition instruction to the acquisition module;
t2: after the acquisition module receives a secondary acquisition instruction, the liquid level sensor is controlled in a timing mode to monitor the water level, and the monitored water level value is marked as Hi';
t3: if Hi' is less than Hi, maintaining the current situation, and controlling a water pump to pump water;
if Hi ' is greater than Hi, adding a water pump to pump water, and regularly controlling the liquid level sensor to monitor the water level until Hi ' is less than Hi, and stopping pumping water by the water pump when Hi ' is less than Yxi;
t4: if the distribution module receives a water pumping instruction and the alarm module gives an alarm, all the water pumps are directly started to pump water;
the management module is used for managing a water pump in a coal mine underground water silo, and the management steps are as follows:
s1: acquiring pipeline pressure, water pump motor bearing temperature, water pump real-time current and water pump real-time voltage when a current water pump works, and sending the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage to a management module;
s2: after receiving the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage, the management module marks the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage as Pk, Tk, Ik and Uk respectively;
s3: calculating the running state value Zk of the current water pump by using a formula;
is calculated by the formula
Wherein a1, a2, a3 and a4 are fixed values of preset proportionality coefficients;
s4: if the current running state value Zk of the water pump is larger than the preset running state threshold value, switching the water pump to pump water, and sending the currently acquired pipeline pressure, the temperature of a water pump motor bearing, the real-time current of the water pump, the real-time voltage of the water pump and the running state value Zk of the water pump to a server through a communication module for storage;
and if the current running state value Zk of the water pump is smaller than the preset running state threshold value, sending the currently acquired pipeline pressure, the temperature of a bearing of a water pump motor, the real-time current of the water pump, the real-time voltage of the water pump and the running state value Zk of the water pump to a server through a communication module for storage.
The acquisition module comprises a first liquid level sensor and a second liquid level sensor, and through acquisition quantity comparison, when an acquired data difference value is large, an alarm instruction is sent to the alarm module to drive the alarm to give an alarm, and when an acquired data value is within an allowable error range, a water level value acquired by the first liquid level sensor is used as a standard to be sent to the control module.
The system further comprises a monitoring module, the monitoring module is specifically an explosion-proof camera installed in the underground water sump of the coal mine, the explosion-proof camera is used for shooting the water level and the water pump running condition in each underground water sump of the coal mine, and the EPON video technology is adopted to send collected video signals to the server for storage through the communication module.
The system also comprises a switching module for switching manual control and automatic control, wherein the automatic control is mainly used for automatically detecting the water level of the underground water sump of the coal mine and automatically controlling water pumping and drainage; due to the special underground environment of the coal mine, the liquid level sensor and the explosion-proof camera need to be overhauled and cleaned regularly; the water quality of the mine sump is poor, the sludge is more, the water pump cannot be normally used, when the water quality is poor, the manual control mode is started, and the switching time cannot exceed five minutes.
The acquisition module further comprises a pressure sensor, a temperature sensor, a current transformer, a voltage transformer and a power supply, wherein the power supply supplies power to the pressure sensor, the temperature sensor, the current transformer, the voltage transformer, the first liquid level sensor and the second liquid level sensor.
The server is used for storing data, the stored data comprise the water level Hi of the water sump, the water level Hi' acquired secondarily, the pipeline pressure Pk, the water pump motor bearing temperature Tk, the water pump real-time current Ik, the water pump real-time voltage Uk and the running state value Zk, and the stored data are generated into a report.
The system further comprises a printing module, wherein the printing module is used for printing reports generated by the server, and the reports comprise a water level daily duty report, a water level alarm daily report and a water pump state daily report.
The system further comprises a statistic module, wherein the statistic module is used for counting the total water discharge amount per day, the running time of the water pump per day and the alarm times per day.
The system further comprises a display module, wherein the display module is used for displaying the following contents:
1. the data display content should include: the water level value, the secondarily collected water level value, the water level early warning lower limit value, the early warning limit value, the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current, the water pump real-time voltage, the running state value of the water pump, the water pump starting times, the sensor working state, the warning and warning-releasing state and time;
2. display system device layout: the display content should include: the device names, relative positions and operation states of equipment such as a pressure sensor, a temperature sensor, a current transformer, a voltage transformer, a first liquid level sensor, a second liquid level sensor, a water pump, an explosion-proof camera and the like can be roamed, paged or partially amplified in a general diagram if a huge display screen of the system cannot be accommodated.
The above formulas are all quantitative calculation, the formula is a formula obtained by acquiring a large amount of data and performing software simulation to obtain the latest real situation, and the preset parameters in the formula are set by the technical personnel in the field according to the actual situation.
The working principle of the invention is as follows: a coal mine underground water sump intelligent drainage control system based on big data comprises an acquisition module, a control module, a server, an alarm module, a distribution module, a management module, a printing module, a communication module, a management module, a printing module, a monitoring module, a switching module and a display module;
the control module is used for controlling the water pump to automatically drain water, acquiring the position of the underground coal mine water sump and marking the underground coal mine water sump as i; respectively acquiring the water levels of underground water bins of the coal mine, sending the water level numerical values to a control module, and marking the water level numerical values as Hi by the control module after the control module receives the water level numerical values; respectively setting a water level early warning lower limit value and an early warning limit value of a coal mine underground water sump, and respectively marking the water level early warning lower limit value and the early warning limit value as Yxi and Yji, wherein Yxi is less than Yji; if Hi is less than Yxi, directly sending the water level value of the underground water sump of the coal mine to a server through a communication module for storage; if Yyi < Hi < Yji, sending a water pumping instruction to the distribution module, and sending the water level value of the underground water sump of the coal mine to the server for storage through the communication module; if Yji < Hi, sending an alarm instruction to an alarm module, simultaneously sending a pumping instruction to a distribution module, and sending the water level value of the underground water sump of the coal mine to a server for storage through a communication module; the distribution module performs water pump distribution and pumping after receiving the pumping instruction, and the alarm module drives the alarm to alarm after receiving the alarm instruction;
the distribution module is used for distributing water pumps in the coal mine underground water sump to pump water, and after receiving a water pumping instruction, the distribution module randomly starts one water pump to pump water and sends a secondary acquisition instruction to the acquisition module; after the acquisition module receives a secondary acquisition instruction, the liquid level sensor is controlled in a timing mode to monitor the water level, and the monitored water level value is marked as Hi'; if Hi' is less than Hi, maintaining the current situation, and controlling a water pump to pump water; if Hi ' is greater than Hi, adding a water pump to pump water, and regularly controlling the liquid level sensor to monitor the water level until Hi ' is less than Hi, and stopping pumping water by the water pump when Hi ' is less than Yxi; if the distribution module receives a water pumping instruction and the alarm module gives an alarm, all the water pumps are directly started to pump water;
the management module is used for managing a water pump in a coal mine underground water sump, acquiring the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage when the current water pump works, and sending the water pump real-time current and the water pump real-time voltage to the management module; after receiving the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage, the management module marks the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage as Pk, Tk, Ik and Uk respectively; calculating the running state value Zk of the current water pump by using a formula; is calculated by the formula
Wherein a1, a2, a3 and a4 are fixed values of preset proportionality coefficients; if the current running state value Zk of the water pump is larger than the preset running state threshold value, switching the water pump to pump water, and sending the currently acquired pipeline pressure, the temperature of a water pump motor bearing, the real-time current of the water pump, the real-time voltage of the water pump and the running state value Zk of the water pump to a server through a communication module for storage; and if the current running state value Zk of the water pump is smaller than the preset running state threshold value, sending the currently acquired pipeline pressure, the temperature of a bearing of a water pump motor, the real-time current of the water pump, the real-time voltage of the water pump and the running state value Zk of the water pump to a server through a communication module for storage.
The acquisition module comprises a first liquid level sensor and a second liquid level sensor, and through acquisition quantity comparison, when an acquired data difference value is large, an alarm instruction is sent to the alarm module to drive the alarm to give an alarm, and when an acquired data value is within an allowable error range, the water level value acquired by the first liquid level sensor is sent to the control module as a standard. The system further comprises a monitoring module, the monitoring module is specifically an explosion-proof camera installed in the underground water sump of the coal mine, the explosion-proof camera is used for shooting the water level and the water pump running condition in each underground water sump of the coal mine, and the EPON video technology is adopted to send collected video signals to the server for storage through the communication module. The system also comprises a switching module for switching manual control and automatic control, wherein the automatic control is mainly used for automatically detecting the water level of the underground water sump of the coal mine and automatically controlling water pumping and drainage; due to the special underground environment of the coal mine, the liquid level sensor and the explosion-proof camera need to be overhauled and cleaned regularly; the water quality of the mine sump is poor, the sludge is more, the water pump cannot be normally used, when the water quality is poor, the manual control mode is started, and the switching time cannot exceed five minutes. The acquisition module further comprises a pressure sensor, a temperature sensor, a current transformer, a voltage transformer and a power supply, wherein the power supply supplies power for the pressure sensor, the temperature sensor, the current transformer, the voltage transformer, the first liquid level sensor and the second liquid level sensor. The server is used for storing data, the stored data comprise the water level Hi of the water sump, the water level Hi' acquired secondarily, the pipeline pressure Pk, the bearing temperature Tk of the water pump motor, the real-time current Ik of the water pump, the real-time voltage Uk of the water pump and the running state value Zk, and the stored data are generated into a report. The printing module is used for printing reports generated by the server, and the reports comprise a water level daily duty report, a water level alarm daily report and a water pump state daily report. The statistical module is used for counting the total water discharge amount, the operation time of the water pump and the alarm times of each day.
The display module is used for displaying the following contents:
1. the data display content should include: the water level value, the secondarily collected water level value, the water level early warning lower limit value, the early warning limit value, the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current, the water pump real-time voltage, the running state value of the water pump, the water pump starting times, the sensor working state, the warning and warning-releasing state and time;
2. display system device layout: the display content should include: the device names, relative positions and operation states of equipment such as a pressure sensor, a temperature sensor, a current transformer, a voltage transformer, a first liquid level sensor, a second liquid level sensor, a water pump, an explosion-proof camera and the like can be roamed, paged or partially amplified in a general diagram if a huge display screen of the system cannot be accommodated.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The intelligent drainage control system for the coal mine underground water sump based on big data is characterized by comprising an acquisition module, a control module, a server, an alarm module, a distribution module, a management module, a printing module and a communication module;
the control module is used for controlling the water pump to automatically drain water, and the specific control method comprises the following steps:
the method comprises the following steps: acquiring the position of a coal mine underground water sump, and marking the coal mine underground water sump as i;
step two: respectively acquiring the water levels of underground water bins of the coal mine, sending the water level numerical values to a control module, and marking the water level numerical values as Hi by the control module after the control module receives the water level numerical values;
step three: respectively setting a water level early warning lower limit value and an early warning limit value of a coal mine underground water sump, and respectively marking the water level early warning lower limit value and the early warning limit value as Yxi and Yji, wherein Yxi is less than Yji;
step four: if Hi is less than Yxi, directly sending the water level value of the underground water sump of the coal mine to a server through a communication module for storage;
if Yyi < Hi < Yji, sending a water pumping instruction to the distribution module, and sending the water level value of the underground water sump of the coal mine to the server for storage through the communication module;
if Yji < Hi, sending an alarm instruction to an alarm module, simultaneously sending a pumping instruction to a distribution module, and sending the water level value of the underground water sump of the coal mine to a server for storage through a communication module;
step five: the distribution module performs water pump distribution and pumping after receiving the pumping instruction, and the alarm module drives the alarm to alarm after receiving the alarm instruction;
the distribution module is used for distributing water pumps in the coal mine underground water sump to pump water, and the specific distribution mode comprises the following steps:
t1: after the distribution module receives the water pumping instruction, the distribution module randomly starts a water pump to pump water and sends a secondary acquisition instruction to the acquisition module;
t2: after the acquisition module receives a secondary acquisition instruction, the liquid level sensor is controlled in a timing mode to monitor the water level, and the monitored water level value is marked as Hi';
t3: if Hi' is less than Hi, maintaining the current situation, and controlling a water pump to pump water;
if Hi ' is greater than Hi, adding a water pump to pump water, and regularly controlling the liquid level sensor to monitor the water level until Hi ' is less than Hi, and stopping pumping water by the water pump when Hi ' is less than Yxi;
t4: if the distribution module receives a water pumping instruction and the alarm module gives an alarm, all the water pumps are directly started to pump water;
the management module is used for managing a water pump in a coal mine underground water silo, and the management steps are as follows:
s1: acquiring pipeline pressure, water pump motor bearing temperature, water pump real-time current and water pump real-time voltage when a current water pump works, and sending the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage to a management module;
s2: after receiving the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage, the management module marks the pipeline pressure, the water pump motor bearing temperature, the water pump real-time current and the water pump real-time voltage as Pk, Tk, Ik and Uk respectively;
s3: calculating the running state value Zk of the current water pump by using a formula;
is calculated by the formula
Wherein a1, a2, a3 and a4 are fixed values of preset proportionality coefficients;
s4: if the current running state value Zk of the water pump is larger than the preset running state threshold value, switching the water pump to pump water, and sending the currently acquired pipeline pressure, the temperature of a water pump motor bearing, the real-time current of the water pump, the real-time voltage of the water pump and the running state value Zk of the water pump to a server through a communication module for storage;
and if the current running state value Zk of the water pump is smaller than the preset running state threshold value, sending the currently acquired pipeline pressure, the temperature of a bearing of a water pump motor, the real-time current of the water pump, the real-time voltage of the water pump and the running state value Zk of the water pump to a server through a communication module for storage.
2. The intelligent drainage control system for the coal mine underground water sump based on the big data according to claim 1, characterized in that: the acquisition module comprises a first liquid level sensor and a second liquid level sensor, and through acquisition quantity comparison, when an acquired data difference value is large, an alarm instruction is sent to the alarm module to drive the alarm to give an alarm, and when an acquired data value is within an allowable error range, a water level value acquired by the first liquid level sensor is used as a standard to be sent to the control module.
3. The intelligent drainage control system for the coal mine underground water sump based on the big data according to claim 1, characterized in that: the system further comprises a monitoring module, the monitoring module is specifically an explosion-proof camera installed in the underground water sump of the coal mine, the explosion-proof camera is used for shooting the water level and the water pump running condition in each underground water sump of the coal mine, and the EPON video technology is adopted to send collected video signals to the server for storage through the communication module.
4. The intelligent drainage control system for the coal mine underground water sump based on the big data according to claim 1, characterized in that: the system also comprises a switching module for switching manual control and automatic control, wherein the automatic control is mainly used for automatically detecting the water level of the underground water sump of the coal mine and automatically controlling water pumping and drainage; due to the special underground environment of the coal mine, the liquid level sensor and the explosion-proof camera need to be overhauled and cleaned regularly; the water quality of the mine sump is poor, the sludge is more, the water pump cannot be normally used, and when the conditions occur, the manual control mode is started.
5. The intelligent drainage control system for the coal mine underground water sump based on the big data according to claim 1, characterized in that: the acquisition module still includes pressure sensor, temperature sensor, current transformer, voltage transformer and power, the power is pressure sensor, temperature sensor, current transformer, voltage transformer, level sensor one and the power supply of level sensor two.
6. The intelligent drainage control system for the coal mine underground water sump based on the big data according to claim 1, characterized in that: the server is used for storing data, the stored data comprise the water level Hi of the water sump, the water level Hi' acquired secondarily, the pipeline pressure Pk, the bearing temperature Tk of the water pump motor, the real-time current Ik of the water pump, the real-time voltage Uk of the water pump and the running state value Zk, and the stored data are generated into a report.
7. The intelligent drainage control system for the coal mine underground water sump based on the big data according to claim 1, characterized in that: the system further comprises a printing module, wherein the printing module is used for printing the reports generated by the server, and the reports comprise a water level daily duty report, a water level alarm daily report and a water pump state daily report.
8. The intelligent drainage control system for the coal mine underground water sump based on the big data according to claim 1, characterized in that: the system also comprises a statistic module, wherein the statistic module is used for counting the total water discharge amount per day, the running time of the water pump per day and the alarm times per day.
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