CN114291944B - Underground reservoir quality-divided and flow-divided drainage system and control method thereof - Google Patents
Underground reservoir quality-divided and flow-divided drainage system and control method thereof Download PDFInfo
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- CN114291944B CN114291944B CN202111470499.9A CN202111470499A CN114291944B CN 114291944 B CN114291944 B CN 114291944B CN 202111470499 A CN202111470499 A CN 202111470499A CN 114291944 B CN114291944 B CN 114291944B
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Abstract
The invention discloses a quality-divided, flow-divided and drainage system of an underground reservoir and a control method thereof, wherein the quality-divided, flow-divided and drainage system comprises a water tank which is arranged below the ground and is connected with the underground reservoir, a vacuum drainage system which is arranged on the ground and a remote control system which is arranged on the ground; the water tanks comprise a first water tank for supplying water to the ground, a second water tank for supplying water for underground production and a third water tank for supplying water for underground dust suppression and fire control, wherein the bottom of the first water tank is higher than that of the second water tank, and the bottom of the second water tank is higher than that of the third water tank. The quality-divided and flow-divided drainage system of the underground reservoir and the control method thereof realize the modular division of the discharge of the water of the underground reservoir, reasonably recycle the mine water of the underground reservoir according to different purposes and water quality requirements, and simultaneously can carry out remote monitoring and control, thereby being more beneficial to the safety guarantee of the drainage system of the underground reservoir and realizing the reasonable distribution and utilization of the mine water.
Description
Technical Field
The invention relates to the technical field of underground reservoirs, in particular to a quality-divided, flow-divided and drainage system of an underground reservoir and a control method thereof.
Background
The underground reservoir formed in the coal mining process is used for water storage, and mine water can be recycled after being purified by the underground reservoir, such as underground production water, underground fire-fighting water, ground industrial water, residential water, greening landscape water and the like. However, water with different purposes has different requirements on water quality, the existing underground reservoir drainage system focuses more on discharge of outlet water of an underground reservoir or mine water transfer between reservoirs of the underground reservoir, and classified discharge of mine water with different purposes is not involved.
In view of the above, it is necessary to provide a quality-divided drainage system for an underground reservoir, which performs classification treatment and discharge according to the use of mine water, and a control method thereof.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a quality-divided and flow-divided drainage system for an underground reservoir, which is used for carrying out classification treatment and discharge according to the application of mine water, and a control method thereof.
The technical scheme of the invention provides a quality-divided, flow-divided and drainage system for an underground reservoir, which comprises a water tank, a vacuum drainage system and a remote control system, wherein the water tank is positioned below the ground and is connected with the underground reservoir;
the water tanks comprise a first water tank for supplying water to the ground, a second water tank for supplying water for underground production and a third water tank for supplying water for underground dust suppression and fire protection, wherein the bottom of the first water tank is higher than that of the second water tank, and the bottom of the second water tank is higher than that of the third water tank;
the water inlet of the first water tank is connected with a water outlet pipe of the underground reservoir, the water outlet pipe of the underground reservoir is provided with a water outlet pipe valve, the water outlet of the first water tank is connected with the vacuum drainage system through a first water supply pipe, and a vacuum valve is arranged on the first water supply pipe;
a first channel is arranged between the second water tank and the first water tank, a first electric valve is arranged on the first channel, a first submersible pump is arranged in the second water tank, and a second water supply pipe for supplying water to underground production equipment is connected to a water outlet of the second water tank;
a second channel is arranged between the third water tank and the second water tank, a second electric valve is arranged on the second channel, a second submersible pump is arranged in the third water tank, and a third water supply pipe for supplying water to underground fire-fighting dust-settling equipment is connected to a water outlet of the third water tank;
the first water tank, the second water tank and the third water tank are respectively provided with a liquid level meter, the first water tank and the third water tank are respectively provided with a water quality monitor, and the third water tank is also provided with a filtering device and an ultraviolet disinfection lamp tube;
the water outlet pipe valve, the first electric valve, the second electric valve, the first submersible pump, the second submersible pump, the liquid level meter and the water quality monitor are respectively connected with the remote control system.
In one optional technical scheme, the water level in the third water chamber is kept above the ultraviolet disinfection lamp tube.
In an optional technical scheme, when the water level in the second water tank is lower than the preset water level of the second water tank, the remote control system controls the first electric valve to open to replenish water into the second water tank;
when the water level in the third water tank is lower than the preset water level of the third water tank, the remote control system controls the second electric valve to open to supplement water into the third water tank.
In an optional technical scheme, a return pipe is connected among the first water tank, the second water tank and the third water tank, and a return pipe valve is arranged in the return pipe.
In one optional technical scheme, when the concentration of suspended matters in the water in the third water tank exceeds a warning value, the following operations are carried out:
and opening the second electric valve and the second submersible pump, opening the corresponding return pipe valve, reversely flushing the water in the third water tank into the second water tank through the return pipe, enabling the water in the second water tank to flow into the third water tank again, and circularly filtering the water through the filtering device until the concentration of suspended matters in the water in the third water tank is lower than an alarm value.
In one optional technical scheme, when the second water tank needs to be cleaned, the following operations are performed:
after the first water tank stores water to a preset water level of the first water tank, the water outlet pipe valve is closed;
opening the first electric valve, and enabling water in the first water tank to flow down rapidly through the first channel to flush the second water tank;
and starting the first submersible pump, conveying the flushing water in the second water tank back to the first water tank through the return pipe, and conveying the flushing water to a sewage treatment plant on the ground for treatment.
In one optional technical scheme, when the third water tank needs to be cleaned, the following operations are performed:
firstly, cleaning operation of the second water tank is executed, after the second water tank is cleaned, the second water tank is in a water-free state, and the first electric valve is kept closed;
opening the second electric valve, and enabling water in the third water tank to back flush the filtering device and enter the second water tank through the second channel;
starting the first submersible pump, conveying back washing water in the second water tank to the first water tank through the return pipe, and conveying the back washing water to a sewage treatment plant on the ground for treatment;
when no water flows into the second water cabin in the second channel, judging the filtering effect of the filtering device according to the residual water level in the third water cabin so as to allow the filtering device to be continuously back-flushed or replaced;
and starting the second submersible pump, and conveying the residual water in the third water tank back to the first water tank through the return pipe and conveying the residual water to a sewage treatment plant on the ground for treatment.
In one optional technical scheme, the underground reservoir quality-divided and flow-divided drainage system further comprises water purification treatment equipment;
the vacuum drainage system comprises a ground water discharge port, an emergency water discharge port and a third submersible pump;
the ground water discharge port is connected with the water purification treatment device through a pipeline.
In an optional technical scheme, the underground reservoir quality-dividing and water-discharging system further comprises a disinfectant liquid supply device for supplying disinfectant liquid into the third water tank, and the disinfectant liquid supply device is connected with the remote control system;
when the fungi in the water in the third water tank exceed the alarm, the disinfectant supplying equipment adds disinfectant to the third water tank until the fungi in the water in the third water tank are lower than the alarm value.
The technical scheme of the invention also provides a control method of the underground reservoir quality-divided and flow-divided drainage system, which comprises the following steps:
a water tank water storage step, comprising:
opening the water outlet pipe valve, opening the first electric valve and the second electric valve, and starting to store water in the third water tank, the second water tank and the first water tank in sequence;
after the water in the third water tank is stored to the preset water level of the third water tank, closing the second electric valve;
after the water in the second water tank is stored to the preset water level of the second water tank, closing the first electric valve;
after the water in the first water tank is stored to the preset water level of the first water tank, closing a first electric valve;
a ground water supply step comprising:
after the water in the first water tank is stored to the preset water level of the first water tank, the vacuum valve is opened, the water in the first water tank is sucked into the vacuum drainage system, the water level in the first water tank is lowered, and the vacuum drainage system stores water;
when the water stored in the vacuum drainage system reaches a preset water level of the vacuum drainage system, the vacuum valve is closed, the water outlet pipe valve is opened, and the first water tank starts to store water until the water storage is finished;
a downhole production water supply step comprising:
opening the first submersible pump, opening a valve in the second water supply pipe, and supplying water to underground production equipment through the second water supply pipe;
after water supply is finished, valves in the first submersible pump and the second water supply pipe are closed, the first electric valve is opened, and the second water tank starts water storage until water storage is finished;
for dust fall fire control water supply step in the pit, include:
opening the second submersible pump, opening a valve in the third water supply pipe, and supplying water to underground fire-fighting dust-settling equipment through the third water supply pipe;
after water supply is finished, the valves in the second submersible pump and the third water supply pipe are closed, the second electric valve is opened, and the third water tank starts water storage until water storage is finished.
In one optional technical solution, the control method further includes a circulating filtering step, including:
when the suspended solid concentration in the aquatic of third water tank surpassed the alert value, open second electric valve with the second immersible pump opens corresponding return pipe valve in the back flow, through the back flow will water in the third water tank is reverse to be washed in the second water tank, water in the second water tank flows into again in the third water tank, through filter equipment carries out loop filter to water, until suspended solid concentration in the aquatic of third water tank is less than the alert value.
In one optional technical solution, the control method further includes a second water tank cleaning step, including:
after the first water tank stores water to a preset water level of the first water tank, the water outlet pipe valve is closed;
opening the first electric valve, and enabling water in the first water tank to flow down rapidly through the first channel to flush the second water tank;
and starting the first submersible pump, and conveying the flushing water in the second water tank back to the first water tank through the return pipe and conveying the flushing water to a sewage treatment plant on the ground for treatment.
In one optional technical solution, the control method further includes a third water tank cleaning step, including:
after the second water tank is cleaned, the second water tank is in a water-free state, and the first electric valve is kept closed;
opening the second electric valve, and allowing water in the third water tank to back flush the filtering device and enter the second water tank through the second channel;
starting the first submersible pump, conveying back washing water in the second water tank to the first water tank through the return pipe, and conveying the back washing water to a sewage treatment plant on the ground for treatment;
when no water flows into the second water chamber any more in the second channel, judging the filtering effect of the filtering device according to the residual water level in the third water chamber so as to provide subsequent options for continuously backwashing the filtering device or selecting to replace the filtering device;
and starting the second submersible pump, and conveying the residual water in the third water tank back to the first water tank through the return pipe and conveying the residual water to a sewage treatment plant on the ground for treatment.
In one optional technical solution, the control method further includes an emergency drainage step, including:
and when the water level in the first water tank exceeds the safe water level, opening an emergency drainage port of the vacuum drainage system, and draining water into the river channel.
In one optional technical solution, the control method further comprises a sterilization step, including:
when the fungi in the water in the third water tank exceed the alarm, adding disinfectant into the third water tank through disinfectant supply equipment until the fungi in the water in the third water tank are lower than the alarm value.
By adopting the technical scheme, the method has the following beneficial effects:
the quality-divided and flow-divided drainage system of the underground reservoir and the control method thereof provided by the invention realize the modular division of the discharge of the water of the underground reservoir, reasonably recycle the mine water of the underground reservoir according to different purposes and water quality requirements, and simultaneously can carry out remote monitoring and control, thereby being more beneficial to the safety guarantee of the drainage system of the underground reservoir and realizing the reasonable distribution and utilization of the mine water.
Drawings
The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:
fig. 1 is a schematic layout view of a divided-flow drainage system for an underground reservoir according to an embodiment of the present invention, wherein a water tank is shown from a top view;
FIG. 2 is a cross-sectional view of the sump in a vertical direction;
figure 3 is a schematic view of the return pipe being attached to the side of the tank.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1-2, an embodiment of the present invention provides a divided-by-divided drainage system for an underground reservoir, which includes a water tank 100 below the ground and connected to the underground reservoir, a vacuum drainage system 200 above the ground, and a remote control system 300 above the ground.
The water tanks 100 comprise a first water tank 1 for supplying water to the ground, a second water tank 2 for supplying water for downhole production and a third water tank 3 for supplying water for downhole dust suppression and fire protection, wherein the bottom of the first water tank 1 is higher than the bottom of the second water tank 2, and the bottom of the second water tank 2 is higher than the bottom of the third water tank 3.
The water inlet of the first water tank 1 is connected with the water outlet pipe 4 of the underground reservoir, the water outlet pipe 4 of the underground reservoir is provided with a water outlet pipe valve 5, the water outlet of the first water tank 1 is connected with the vacuum drainage system 200 through a first water supply pipe 6, and the first water supply pipe 6 is provided with a vacuum valve 7.
A first channel 8 is arranged between the second water tank 2 and the first water tank 1, a first electric valve 9 is arranged on the first channel 8, a first submersible pump 10 is arranged in the second water tank 2, and a second water supply pipe 11 used for supplying water to underground production equipment is connected to a water outlet of the second water tank 2.
A second channel 12 is arranged between the third water tank 3 and the second water tank 2, a second electric valve 13 is arranged on the second channel 12, a second submersible pump 14 is arranged in the third water tank 3, and a third water supply pipe 15 used for supplying water to underground fire control dust settling equipment is connected to a water outlet of the third water tank 3.
Level gauges 18 are respectively arranged in the first water tank 1, the second water tank 2 and the third water tank 3. The first water tank 1 and the third water tank 3 are respectively provided with a water quality monitor 19, and the third water tank 3 is also provided with a filtering device 16 and an ultraviolet disinfection lamp 17.
The water outlet pipe valve 5, the first electric valve 9, the second electric valve 13, the first submersible pump 10, the second submersible pump 14, the liquid level meter 18 and the water quality monitor 19 are respectively connected with the remote control system 300.
According to the application and the water quality requirement of mine water recycling, the method is divided into the following three types:
the first type is ground water or ground water, which is treated by a mine water treatment plant or water purification treatment equipment before being reused.
The second type is underground production water, such as washing roadways and the like, which has low requirements on water quality.
The third type is underground water for fire fighting and dust fall, the water body is distributed in the air in a spray form and is in close contact with a human body, suspended matters are needed to be low to avoid blockage of a spraying device, and the content of fungus in the water (such as escherichia coli) needs to be reduced to reduce influence on the human body, so that the underground water has important influence on underground safe production.
According to the quality-divided and flow-divided drainage system of the underground reservoir, provided by the invention, mine water is treated and respectively stored by configuring the water tanks 100, so that classified discharge is realized.
The quality-dividing, flow-dividing and drainage system of the underground reservoir comprises a water tank 100, a vacuum drainage system 200, a remote control system 300 on the ground and the like. The water tank 100 is constructed below the ground and communicates with an underground reservoir for storing water. The vacuum drainage system 200 is built on the ground and is used for leading the mine water to the ground for storage in a negative pressure mode. The remote control system 300 is disposed in a ground plant and is used for monitoring and controlling the opening and closing of each electric valve in the water tank 100 to realize automatic control.
The water tank 100 comprises a first water tank 1, a second water tank 2 and a third water tank 3 which are sequentially arranged, and the bottoms of the water tanks are arranged in a stepped manner. The bilge of the first water tank 1 is higher than the bilge of the second water tank 2, and the bilge of the second water tank 2 is higher than the bilge of the third water tank 3, so that the water in the first water tank 1 can flow into the second water tank 2, and the water in the second water tank 2 can flow into the third water tank 3.
The first water tank 1 is connected with the water outlet of the underground reservoir through an underground reservoir water outlet pipe 4. The first tank 1 is used for supplying water to the ground. The second water tank 2 is communicated with the first water tank 1 through a first channel 8, and the second water tank 2 is used for supplying water for underground production. The third water tank 3 is communicated with the second water tank 2 through a second channel 12, and the third water tank 3 is used for supplying water for underground dust fall and fire fighting.
The outlet pipe 4 of the underground reservoir is provided with an electric outlet pipe valve 5 which is connected with a remote control system 300 to realize automatic control switch. The water outlet of the first water tank 1 is connected with the vacuum drainage system 200 through a first water supply pipe 6, and a vacuum valve 7 is arranged on the first water supply pipe 6. The vacuum drainage system 200 may be a vacuum drainage canister, and the volume thereof may be selected according to actual needs. When the water level in the first water compartment 1 is accumulated to a first preset level, the vacuum valve 7 is closed. When the vacuum drainage system 200 drains, the internal pressure thereof is reduced, the vacuum valve 7 is automatically opened, and the water in the first water tank 1 can be drained to the vacuum drainage system 200 for storage. When the water in the vacuum drainage system 200 is stored to a preset level, the vacuum valve 7 is automatically closed. The vacuum drainage system 200 is connected with the remote control system 300, and realizes automatic control of opening drainage and closing water storage.
A first channel 8 is arranged at the bottom of a partition wall between the first water tank 1 and the second water tank 2, a first electric valve 9 is arranged in the first channel 8 or on the partition wall, and the first electric valve 9 is connected with a remote control system 300 to realize automatic control switch so as to automatically control the opening or closing of the first channel 8. The first electrically operated valve 9 may be a gate valve. When the first electrically operated valve 9 is opened to open the first passage 8, the water in the first water tank 1 can flow into the second water tank 2. The second sump 2 has a first submersible pump 10 which is connected to a remote control system 300 to effect automatic control switching. A second water supply pipe 11 is connected to the water outlet of the second water tank 2 and leads into the underworkings to supply water to the underworkings production equipment. The first submersible pump 10 may power the supply of water from the second water supply line 11.
A second channel 12 is formed in the bottom of a partition wall between the second water tank 2 and the third water tank 3, a second electric valve 13 is installed in the second channel 12 or on the partition wall, and the second electric valve 13 is connected with a remote control system 300 to realize automatic control on and off so as to automatically control the opening or closing of the second channel 12. The second electrically operated valve 13 may be a gate valve. When the second electric valve 13 is opened to open the second passage 12, the water in the second water chamber 2 can flow into the third water chamber 3. The third water tank 3 is provided with a second submersible pump 14 which is connected with a remote control system 300 to realize automatic control switch. And the third water supply pipe 15 is connected to a water outlet of the third water tank 3 and leads to a roadway in the underground so as to supply water for underground fire-fighting dust-settling equipment.
Level gauges 18 are provided in the first, second and third water tanks 1, 2, 3, respectively, for monitoring the water levels in the first, second and third water tanks 1, 2, 3. And water quality monitors 19 are respectively arranged in the first water tank 1 and the third water tank 3 and used for monitoring the water quality in the first water tank 1 and the third water tank 3. The liquid level meter 18 and the water quality monitor 19 are respectively connected with the remote control system 300 so as to transmit the water level signal and the water quality signal to the remote control system 300, and the remote control system 300 opens and closes the corresponding electric valves according to the corresponding signals.
The water quality monitor 19 in the first water compartment 1 may be a water hardness monitor selected for monitoring water hardness. The water quality monitor 19 in the third water tank 3 can select a suspended matter monitor, an escherichia coli monitor, a turbidity monitor and a combination thereof.
The third water chamber 3 is also provided with a filtering device 16 and an ultraviolet disinfection lamp 17. The filter means 16 is spaced from the partition wall in which the second channel 12 is located. The top of the filtering device 16 is hermetically connected with the top plate of the third water tank 3, the bottom of the filtering device 16 is hermetically connected with the bottom of the third water tank 3, and two sides of the filtering device 16 are hermetically connected with the side wall of the third water tank 3. The filter device 16 may be selected from a combination of a filter screen, a filter element, and the like. The water flowing from the second channel 12 is filtered by the filter device 16 to reduce the content of suspended substances, and many impurities are blocked in the space between the filter device 16 and the partition wall. The ultraviolet disinfection lamp tube 17 is arranged at the rear side of the filtering device 16 and is used for disinfecting and sterilizing the mine water filtered by the filtering device 16. A plurality of ultraviolet sterilizing lamps 17 may be disposed at the rear side of the filtering device 16 as required to improve the sterilizing effect. The ultraviolet disinfection lamp 17 can be selected to be normally bright, and can also be connected with the remote control system 300 to realize automatic control.
When each water tank stores water, the operation mode is as follows:
and opening the water outlet pipe valve 5, opening the first electric valve 9 and the second electric valve 13, and starting to store water in the third water tank 3, the second water tank 2 and the first water tank 1 in sequence. After the water in the third water tank 3 is accumulated to the preset water level (third preset water level) of the third water tank 3, the second electrically operated valve 13 is closed. After the water in the second water tank 2 is accumulated to the preset water level (second preset water level) of the second water tank 2, the first electrically operated valve 9 is closed. After the water in the first water tank 1 is accumulated to the preset water level (first preset water level) of the first water tank 1, the first electrically operated valve 9 is closed.
When supplying water to the ground, the operation mode is as follows:
after the water in the first water tank 1 is stored to a first preset water level, the vacuum valve 7 is automatically opened, the water in the first water tank 1 is sucked into the vacuum drainage system 200, the water level in the first water tank 1 is reduced, and the water is stored in the vacuum drainage system 200. When the water stored in the vacuum drainage system 200 reaches the preset water level (fourth preset water level) of the vacuum drainage system 200, the vacuum valve 7 is closed, the water outlet pipe valve 5 is opened, and the first water tank 1 starts to store water until the water is stored to the first preset water level.
In supplying water to downhole production, it operates as follows:
the first submersible pump 10 is turned on and the valve in the second water supply line 11 is opened to supply water to the downhole production equipment via the second water supply line 11.
After the water supply is finished, the valves in the first submersible pump 10 and the second water supply pipe 11 are closed, the first electric valve 9 is opened, and the second water tank 2 starts to store water until the water is stored to a second preset water level.
When supplying water to underground dust-settling fire control, the operation mode is as follows:
and (3) opening the second submersible pump 14, opening a valve in the third water supply pipe 15, and supplying water to underground fire-fighting and dust-settling equipment through the third water supply pipe 15.
After the water supply is finished, the valves in the second submersible pump 14 and the third water supply pipe 15 are closed, the second electric valve 13 is opened, and the third water tank 3 starts to store water until the water is stored to a third preset water level.
Therefore, the quality-divided and flow-divided drainage system of the underground reservoir provided by the invention realizes the modular division of the discharge of the effluent of the underground reservoir, reasonably recycles the mine water of the underground reservoir according to different purposes and water quality requirements, can carry out remote monitoring and control, is more favorable for the safety guarantee of the drainage system of the underground reservoir and realizes the reasonable distribution and utilization of the mine water.
In one embodiment, as shown in fig. 1-2, the water level in the third water compartment 3 is maintained above the ultraviolet disinfection lamp 17 to prevent scaling on the ultraviolet disinfection lamp 17.
In one embodiment, when the water level in the second water tank 2 is lower than the second preset water level, the remote control system 300 controls the first electric valve 9 to open to replenish water into the second water tank 2.
When the water level in the third water tank 3 is lower than the third preset water level, the remote control system 300 controls the second electric valve 13 to open to replenish water into the third water tank 3.
In one embodiment, as shown in fig. 1 and 3, a return pipe 20 is connected between the first water compartment 1, the second water compartment 2 and the third water compartment 3, and a return pipe valve 21 is arranged in the return pipe 20 and is used for back flushing the second water compartment 2 and the third water compartment 3 and also for repeated filtering of the third water compartment 3.
If necessary, a return pipe valve 21 may be installed at the connection of each water tank and the return pipe 20 to control the flow direction.
In one embodiment, when the concentration of suspended matter in the water in the third water compartment 3 exceeds the warning value, the following operations are performed:
and (3) opening a second electric valve 13 and a second submersible pump 14, opening a corresponding return pipe valve 21, reversely flushing the water in the third water tank 3 into the second water tank 2 through a return pipe 20, enabling the water in the second water tank 2 to flow into the third water tank 3 again, and circularly filtering the water through a filtering device 16 until the concentration of suspended matters in the water in the third water tank 3 is lower than an alarm value.
The aerosol warning value may be selected according to industry specifications and preset in the remote control system 300.
In one embodiment, when the second water tank 2 needs to be cleaned, the following operations are performed:
after the first water tank 1 stores water to a first preset water level, the water outlet pipe valve 5 is closed.
The first electric valve 9 is opened, and the water in the first water tank 1 rapidly flows down through the first channel 8 to flush the second water tank 2.
The first submersible pump 10 is switched on and the rinsing water in the second tank 2 is fed back to the first tank 1 via the return pipe 20 and delivered to a sewage treatment plant on the ground for treatment.
Typically, the first predetermined water level of the first water compartment 1 is higher than the water level of the second water compartment 2. When the second water tank 2 is cleaned, the first electric valve 9 is closed first, and the first water tank 1 stores water until the water is stored to a first preset water level. The first electric valve 9 is opened to open the first channel 8 immediately, the first submersible pump 10 is opened, the corresponding return pipe valve 21 on the return pipe 20 is opened, water in the first water tank 1 flows down rapidly through the first channel 8 to flush the second water tank 2, and meanwhile the flushing water is conveyed back to the first water tank 1 through the return pipe 20. The flushing water conveyed back into the first tank 1 is conveyed to a sewage treatment plant on the ground for treatment.
According to the requirement, a third submersible pump can be arranged in the first water cabin 1 and connected with a pipeline to a sewage treatment plant, and the flushing water which flows back to the first water cabin 1 can be directly output to the sewage treatment plant on the ground through the third submersible pump for treatment.
If necessary, the vacuum drainage system 200 can also be directly adopted to output the washing water in the first water tank 1 to a sewage treatment plant on the ground for treatment. The flushed water is discharged to a sewage treatment plant through a sewage outlet or emergency drain 202 of the vacuum drainage system 200 for treatment.
The rinsing can be repeated several times as required to improve the cleaning effect of the second sump 2.
In one embodiment, when the third water tank 3 needs to be cleaned, the following operations are performed:
the cleaning operation of the second water tank 2 is firstly executed, and after the second water tank 2 is cleaned, the second water tank 2 is in a water-free state and the first electric valve 9 is kept closed.
The second electrically operated valve 13 is opened and the water in the third water compartment 3 backflushes the filter device 16 and passes through the second channel 12 into the second water compartment 2.
The first submersible pump 10 is switched on and the backwash water in the second tank is conveyed back to the first tank 1 via the return pipe 20 and conveyed to a sewage treatment plant on the ground for treatment.
When no water flows into the second water chamber 2 in the second channel 12, the filtering effect of the filtering device 16 is judged according to the residual water level in the third water chamber 3, so that the filtering device 16 can be continuously backwashed or the filtering device 16 can be replaced.
The second submersible pump 14 is switched on and the remaining water in the third tank 3 is transported via the return pipe 20 back to the first tank 1 and to a sewage treatment plant on the ground for treatment.
An electric valve 22 can be installed at the pipe openings of the second water tank 2 and the third water tank 3 connected with the return pipe 20 according to requirements.
Generally, after the first water tank 1, the second water tank 2 and the third water tank 3 are stored with water, the first cleaning of the second water tank 2 and the second cleaning of the third water tank 3 are performed.
After the second water compartment 2 is cleaned, it is in an empty state. Therefore, after the second electric valve 13 is opened, the water in the third water compartment 3 flows toward the second water compartment 2, thereby functioning to back flush the filter device 16. The filtering effect of the filter device 16 can also be judged according to the remaining water level in the third water chamber 3 for subsequent selection of continued backwashing of the filter device 16 or selection of replacement of the filter device 16.
The second channel 12 is provided at the bilge of the second water tank 2 at a step of the second water tank 2 and the third water tank 3. The height between the upper and lower edges of the second channel 12 is typically above 1 m.
When no more water flows into the second sump 2 in the second channel 12:
if the remaining water level in the third water compartment 3 is substantially level with the lower edge of the second channel 12, this means that the filtration device 16 has a good passing rate without replacement and repeated backwashing.
If the remaining water level in the third water compartment 3 is between the center line and the lower edge of the second channel 12, this means that the filtration device 16 has a poor overrun and requires repeated backwashing.
If the remaining water level in the third water compartment 3 is higher than the upper edge of the second channel 12, this indicates that the filter device 16 needs to be replaced.
After the filtering performance of the filtering device 16 is judged, the second submersible pump 14 is started, and the water in the third water chamber 3 is emptied through the return pipe 20. The water transported back into the first tank 1 is transported to an above-ground sewage treatment plant for treatment.
If it is necessary to replace the filter device 16, the user can enter the replacement filter device 16 after the third water compartment 3 is emptied.
If the filter device 16 needs to be repeatedly flushed, the third water tank 3 is refilled with water. At this time, the first electric valve 9, the second electric valve 13, the electric valve 22 at the connection between the return pipe 20 and the second water tank 2, the electric valve 22 at the connection between the return pipe 20 and the third water tank 3, and the water outlet pipe valve 5 are selectively closed, so that the water in the first water tank 1 enters the third water tank 3 through the return pipe 20 until the water is stored to a third preset water level, the valves are closed, and the backwashing of the filter device 16 is performed again. This may be repeated as many times as necessary to flush the filter assembly 16 as clean as possible.
In one embodiment, as shown in fig. 1, the underground water reservoir divided flow drainage system further includes a water purification treatment apparatus 400.
The vacuum drainage system 200 includes a ground water discharge port 201, an emergency discharge port 202, and a third submersible pump 203. The surface water discharge port 201 is connected to the water purification treatment apparatus 400 through a pipe. The emergency drain 202 may lead to a river ditch area.
The water in the vacuum drainage system 200 can be supplied to the water purification treatment device 400 through the ground water discharge port 201 for purification treatment, and then delivered to the ground required place as required.
When the water level in the first tank 1 exceeds the safe water level, the emergency drain 202 of the vacuum drainage system 200 is opened to drain the water into the river channel. The safe water level is generally higher than the first preset level of the first water compartment 1.
In one embodiment, as shown in fig. 1, the sub-quality diversion and drainage system of the underground reservoir further includes a disinfectant liquid supply device 500 for supplying disinfectant liquid into the third water tank 3, and the disinfectant liquid supply device 500 is connected to the remote control system 300.
When the bacteria in the water in the third tank 3 exceed the warning, the disinfectant supplying apparatus 500 adds the disinfectant to the third tank 3 until the bacteria in the water in the third tank 3 are lower than the warning value.
When the concentration of the escherichia coli is higher than the standard value, the disinfection and sterilization process can be enhanced by adding medicaments and the like. The remote control system 300 controls the disinfecting liquid supplying apparatus 500 to start supplying the disinfecting liquid into the third water compartment 3. The sterilizing liquid supplying apparatus 500 may be constructed outside the third water tank 3 to be connected to the third water tank 3 through a pipe.
Referring to fig. 1 to 3, a control method of a divided-by-divided drainage system of an underground reservoir according to an embodiment of the present invention includes the following steps:
a water tank water storage step, comprising:
and opening the water outlet pipe valve 5, opening the first electric valve 9 and the second electric valve 13, and starting to store water in the third water tank 3, the second water tank 2 and the first water tank 1 in sequence.
After the water in the third water tank 3 is accumulated to the preset water level of the third water tank 3, the second electric valve 13 is closed.
After the water in the second water tank 2 is accumulated to the preset water level of the second water tank 2, the first electric valve 9 is closed.
After the water in the first water tank 1 is stored to the preset water level of the first water tank 1, the first electric valve 9 is closed.
A ground water supply step comprising:
after the water in the first water tank 1 is stored to the preset water level of the first water tank 1, the vacuum valve 7 is automatically opened, the water in the first water tank 1 is sucked into the vacuum drainage system 200, the water level in the first water tank 1 is reduced, and the water is stored in the vacuum drainage system 200.
When the water stored in the vacuum drainage system 200 reaches the preset water level of the vacuum drainage system 200, the vacuum valve 7 is automatically closed, the water outlet pipe valve 5 is opened, and the first water tank 1 starts to store water until the water storage is completed.
A downhole production water supply step comprising:
the first submersible pump 10 is turned on and the valve in the second water supply line 11 is opened to supply water to the downhole production equipment via the second water supply line 11.
After the water supply is finished, the valves in the first submersible pump 10 and the second water supply pipe 11 are closed, the first electric valve 9 is opened, and the second water tank 2 starts to store water until the water storage is finished.
For the water supply step of dust fall fire control in pit, include:
and (3) opening the second submersible pump 14, opening a valve in the third water supply pipe 15, and supplying water to underground fire-fighting and dust-settling equipment through the third water supply pipe 15.
After the water supply is finished, the valves in the second submersible pump 14 and the third water supply pipe 15 are closed, the second electric valve 13 is opened, and the third water tank 3 starts to store water until the water storage is finished. In one embodiment, the control method further comprises a loop filtering step comprising:
when the concentration of suspended matters in the water in the third water tank 3 exceeds the warning value, the second electric valve 13 and the second submersible pump 14 are started, the corresponding return pipe valve 21 in the return pipe 20 is opened, the water in the third water tank 3 is reversely flushed into the second water tank 2 through the return pipe 20, the water in the second water tank 2 flows into the third water tank 3 again, and the water is subjected to circulating filtration through the filter device 16 until the concentration of suspended matters in the water in the third water tank 3 is lower than the warning value.
In one embodiment, the control method further comprises a second water tank cleaning step comprising:
after the first water tank 1 stores water to the preset water level of the first water tank 1, the water outlet pipe valve 5 is closed.
The first electric valve 9 is opened, and the water in the first water tank 1 rapidly flows down through the first channel 8 to flush the second water tank 2.
The first submersible pump 10 is started and the flushing water in the second tank 2 is transported back to the first tank 1 via the return pipe 20 and to a sewage treatment plant on the ground for treatment.
Typically, the first predetermined water level of the first water compartment 1 is higher than the water level of the second water compartment 2. When the second water tank 2 is cleaned, the first electric valve 9 is closed first, and the first water tank 1 stores water until the water is stored to a first preset water level. The first electric valve 9 is opened to open the first channel 8 immediately, the first submersible pump 10 is opened, the corresponding return pipe valve 21 on the return pipe 20 is opened, water in the first water tank 1 flows down rapidly through the first channel 8 to flush the second water tank 2, and meanwhile the flushing water is conveyed back to the first water tank 1 through the return pipe 20. The flushing water conveyed back into the first tank 1 is conveyed to a sewage treatment plant on the ground for treatment.
According to the requirement, a third submersible pump can be arranged in the first water tank 1 and connected with a pipeline to a sewage treatment plant, and the flushing water which flows back to the first water tank 1 can be directly output to the sewage treatment plant on the ground through the third submersible pump for treatment.
If necessary, the vacuum drainage system 200 can also be directly adopted to output the washing water in the first water tank 1 to a sewage treatment plant on the ground for treatment. The flushed water is discharged to a sewage treatment plant through a sewage outlet or emergency drain 202 of the vacuum drainage system 200 for treatment.
In one embodiment, the control method further comprises a third water tank cleaning step comprising:
after the second water tank 2 is cleaned, the second water tank 2 is in a water-free state and the first electric valve 9 is kept closed.
The second electrically operated valve 13 is opened and water in the third water compartment 33 backflushes the filter device 16 and passes through the second channel 12 into the second water compartment 2.
The first submersible pump 10 is started and the backwash water in the second tank 2 is delivered back to the first tank 1 via the return pipe 20 and delivered to a sewage treatment plant on the ground for treatment.
When no more water flows into the second water chamber 2 in the second channel 12, the filtering effect of the filtering device 16 is judged according to the remaining water level in the third water chamber 3, so that the filtering device 16 can be continuously backwashed or the filtering device 16 can be replaced.
The second submersible pump 14 is switched on and the remaining water in the third tank 3 is transported via the return pipe 20 back to the first tank 1 and to an above-ground sewage treatment plant for treatment.
An electric valve 22 can be installed at the pipe openings of the second water tank 2 and the third water tank 3 connected with the return pipe 20 according to requirements.
Generally, after the first water tank 1, the second water tank 2 and the third water tank 3 are filled with water, the second water tank 2 is cleaned first, and then the third water tank 3 is cleaned.
After the second water compartment 2 is cleaned, it is in an empty state. Therefore, after the second electric valve 13 is opened, the water in the third water compartment 3 flows toward the second water compartment 2, thereby functioning to back flush the filter device 16. The filtering effect of the filtering device 16 can also be judged according to the remaining water level in the third water chamber 3, so that the filtering device 16 can be continuously backwashed or the filtering device 16 can be replaced.
The second channel 12 is provided at the bilge of the second water tank 2 at a step of the second water tank 2 and the third water tank 3. The height between the upper and lower edges of the second channel 12 is typically above 1 m.
When no more water flows into the second sump 2 in the second channel 12:
if the remaining water level in the third water compartment 3 is substantially level with the lower edge of the second channel 12, this means that the filtration device 16 has a good passing rate without replacement and repeated backwashing.
If the remaining water level in the third water compartment 3 is between the center line and the lower edge of the second channel 12, this means that the filtration device 16 has a poor overrun and requires repeated backwashing.
If the remaining water level in the third water compartment 3 is higher than the upper edge of the second channel 12, this indicates that the filter device 16 needs to be replaced.
After the filtering performance of the filtering device 16 is judged, the second submersible pump 14 is started, and the water in the third water tank 3 is emptied through the return pipe 20. The water transported back into the first tank 1 is transported to a sewage treatment plant on the ground for treatment.
If it is necessary to replace the filter device 16, the user can enter the replacement filter device 16 after the third water compartment 3 is emptied.
If the filter device 16 needs to be flushed repeatedly, the third water tank 3 is stored with water again. At this time, the first electric valve 9, the second electric valve 13, the electric valve 22 at the connection between the return pipe 20 and the second water tank 2, the electric valve 22 at the connection between the return pipe 20 and the third water tank 3, and the water outlet pipe valve 5 are selectively closed, so that the water in the first water tank 1 enters the third water tank 3 through the return pipe 20 until the water is stored to a third preset water level, the valves are closed, and the backwashing of the filter device 16 is performed again. This may be repeated as many times as necessary to flush the filter assembly 16 as clean as possible.
In one embodiment, the control method further comprises an emergency drainage step including:
when the water level in the first tank 1 exceeds the safety preset water level, the emergency drainage port 202 of the vacuum drainage system 200 is opened to drain the water into the river channel.
In one embodiment, the control method further comprises a sterilization step comprising:
when the bacteria in the water in the third tank 3 exceed the alarm, the disinfectant is added to the third tank 3 by the disinfectant supplying apparatus 500 until the bacteria in the water in the third tank 3 are below the alarm value.
In conclusion, the quality-divided and flow-divided drainage system of the underground reservoir and the control method thereof provided by the invention realize the modular division of the effluent discharge of the underground reservoir, reasonably recycle the mine water of the underground reservoir according to different purposes and water quality requirements, and simultaneously can carry out remote monitoring and control, thereby being more beneficial to the safety guarantee of the drainage system of the underground reservoir and realizing the reasonable distribution and utilization of the mine water.
According to the needs, the above technical schemes can be combined to achieve the best technical effect.
The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.
Claims (8)
1. A quality-divided and flow-divided drainage system of an underground reservoir is characterized by comprising a water tank which is arranged below the ground and is connected with the underground reservoir, a vacuum drainage system arranged on the ground and a remote control system arranged on the ground;
the water tanks comprise a first water tank for supplying water to the ground, a second water tank for supplying water for underground production and a third water tank for supplying water for underground dust suppression and fire protection, wherein the bottom of the first water tank is higher than that of the second water tank, and the bottom of the second water tank is higher than that of the third water tank;
the water inlet of the first water tank is connected with a water outlet pipe of the underground reservoir, the water outlet pipe of the underground reservoir is provided with a water outlet pipe valve, the water outlet of the first water tank is connected with the vacuum drainage system through a first water supply pipe, and a vacuum valve is arranged on the first water supply pipe;
a first channel is arranged between the second water tank and the first water tank, a first electric valve is arranged on the first channel, a first submersible pump is arranged in the second water tank, and a second water supply pipe for supplying water to underground production equipment is connected to a water outlet of the second water tank;
a second channel is arranged between the third water tank and the second water tank, a second electric valve is arranged on the second channel, a second submersible pump is arranged in the third water tank, and a third water supply pipe for supplying water to underground fire-fighting dust-settling equipment is connected to a water outlet of the third water tank;
the first water tank, the second water tank and the third water tank are respectively provided with a liquid level meter, the first water tank and the third water tank are respectively provided with a water quality monitor, and the third water tank is also provided with a filtering device and an ultraviolet disinfection lamp tube;
the water outlet pipe valve, the first electric valve, the second electric valve, the first submersible pump, the second submersible pump, the liquid level meter and the water quality monitor are respectively connected with the remote control system;
a return pipe is connected among the first water tank, the second water tank and the third water tank, and a return pipe valve is arranged in the return pipe;
when the second water tank needs to be cleaned, the following operations are carried out:
after the first water tank stores water to a preset water level of the first water tank, the water outlet pipe valve is closed;
opening the first electric valve, and enabling water in the first water tank to flow down rapidly through the first channel to flush the second water tank;
starting the first submersible pump, conveying the flushing water in the second water tank back to the first water tank through the return pipe, and conveying the flushing water to a sewage treatment plant on the ground for treatment;
when the third water tank needs to be cleaned, the following operations are carried out:
firstly, cleaning a second water tank, wherein the second water tank is in a water-free state after the second water tank is cleaned, and the first electric valve is kept closed;
opening the second electric valve, and enabling water in the third water tank to back flush the filtering device and enter the second water tank through the second channel;
starting the first submersible pump, conveying back washing water in the second water tank to the first water tank through the return pipe, and conveying the back washing water to a sewage treatment plant on the ground for treatment;
when no water flows into the second water chamber any more in the second channel, judging the filtering effect of the filtering device according to the residual water level in the third water chamber so as to enable the filtering device to be continuously backwashed or replaced by a subsequent choice, specifically: if the residual water level in the third water tank is basically equal to the lower edge of the second channel, the filtering device has good passing rate effect and does not need to be replaced and repeatedly back flushed; if the residual water level in the third water tank is between the central line and the lower edge of the second channel, the passing rate of the filtering device is poor, and repeated backwashing is needed; if the residual water level in the third water tank is higher than the upper edge of the second channel, the filter device needs to be replaced;
starting the second submersible pump, conveying the residual water in the third water tank back to the first water tank through the return pipe, and conveying the residual water to a sewage treatment plant on the ground for treatment;
when the concentration of suspended matters in the water in the third water tank exceeds a warning value, the following operations are carried out:
opening the second electric valve and the second submersible pump, opening the corresponding return pipe valve, reversely flushing water in the third water tank into the second water tank through the return pipe, enabling the water in the second water tank to flow into the third water tank again, and performing circulating filtration on the water through the filtering device until the concentration of suspended matters in the water in the third water tank is lower than a warning value.
2. The system according to claim 1, wherein a water level in the third water compartment is maintained above the ultraviolet disinfection lamp.
3. The divided-by-mass drainage system of an underground reservoir according to claim 1,
when the water level in the second water tank is lower than the preset water level of the second water tank, the remote control system controls the first electric valve to open to supplement water into the second water tank;
when the water level in the third water tank is lower than the set water level of the third water tank, the remote control system controls the second electric valve to open to supplement water into the third water tank.
4. The underground reservoir quality-dividing, flow-dividing and drainage system according to claim 1, further comprising a water purification treatment facility;
the vacuum drainage system comprises a ground water discharge port, an emergency water discharge port and a third submersible pump;
the ground water discharge port is connected with the water purification treatment device through a pipeline.
5. The underground reservoir quality-dividing, flow-dividing and drainage system according to claim 1, further comprising a disinfectant liquid supply device for supplying a disinfectant liquid into the third water tank, the disinfectant liquid supply device being connected to the remote control system;
when the fungi in the water in the third water tank exceed the alarm, the disinfectant supplying equipment adds disinfectant to the third water tank until the fungi in the water in the third water tank are lower than the alarm value.
6. A control method of the divided-by-divided drainage system of an underground reservoir as claimed in any one of claims 1 to 5, characterized by comprising the steps of:
a water tank water storage step, comprising:
opening the water outlet pipe valve, opening the first electric valve and the second electric valve, and starting to store water in the third water tank, the second water tank and the first water tank in sequence;
after the water in the third water tank is stored to the preset water level of the third water tank, closing a second electric valve;
after the water in the second water tank is stored to the preset water level of the second water tank, closing the first electric valve;
after the water in the first water tank is stored to the preset water level of the first water tank, closing a first electric valve;
a ground water supply step comprising:
after the water in the first water tank is stored to the preset water level of the first water tank, the vacuum valve is opened, the water in the first water tank is sucked into the vacuum drainage system, the water level in the first water tank is lowered, and the vacuum drainage system stores water;
when the water stored in the vacuum drainage system reaches a preset water level of the vacuum drainage system, the vacuum valve is closed, the water outlet pipe valve is opened, and the first water tank starts to store water until the water storage is finished;
a downhole production water supply step comprising:
opening the first submersible pump, opening a valve in the second water supply pipe, and supplying water to underground production equipment through the second water supply pipe;
after water supply is finished, valves in the first submersible pump and the second water supply pipe are closed, the first electric valve is opened, and the second water tank starts water storage until water storage is finished;
for dust fall fire control water supply step in the pit, include:
opening the second submersible pump, opening a valve in the third water supply pipe, and supplying water to underground fire control dust settling equipment through the third water supply pipe;
after water supply is finished, valves in the second submersible pump and the third water supply pipe are closed, the second electric valve is opened, and the third water tank starts water storage until water storage is finished;
the control method further comprises a second water tank cleaning step which comprises the following steps:
after the first water tank stores water to a preset water level of the first water tank, the water outlet pipe valve is closed;
opening the first electric valve, and enabling water in the first water tank to flow down rapidly through the first channel to flush the second water tank;
starting the first submersible pump, conveying the flushing water in the second water tank back to the first water tank through the return pipe and conveying the flushing water to a sewage treatment plant on the ground for treatment;
the control method further comprises a third water tank cleaning step, which comprises the following steps:
after the second water tank is cleaned, the second water tank is in a water-free state and the first electric valve is kept closed;
opening the second electric valve, and allowing water in the third water tank to back flush the filtering device and enter the second water tank through the second channel;
starting the first submersible pump, conveying back washing water in the second water tank to the first water tank through the return pipe, and conveying the back washing water to a sewage treatment plant on the ground for treatment;
when no water flows into the second water chamber any more in the second channel, judging the filtering effect of the filtering device according to the residual water level in the third water chamber so as to provide subsequent options for continuously backwashing the filtering device or selecting to replace the filtering device, specifically: if the residual water level in the third water tank is basically equal to the lower edge of the second channel, the filtering device has a good passing rate effect and does not need to be replaced or repeatedly back-flushed; if the residual water level in the third water tank is between the central line and the lower edge of the second channel, the passing rate of the filtering device is poor, and repeated backwashing is needed; if the residual water level in the third water tank is higher than the upper edge of the second channel, the filter device needs to be replaced;
starting the second submersible pump, conveying the residual water in the third water tank back to the first water tank through the return pipe, and conveying the residual water to a sewage treatment plant on the ground for treatment;
the control method further comprises a circulating filtering step, comprising:
when the concentration of suspended matters in the water in the third water tank exceeds a warning value, the second electric valve and the second submersible pump are started, a corresponding return pipe valve in a return pipe is opened, the water in the third water tank is reversely flushed into the second water tank through the return pipe, the water in the second water tank flows into the third water tank again, and the water is subjected to circulating filtration through the filtering device until the concentration of suspended matters in the water in the third water tank is lower than the warning value.
7. The control method of the divided-by-mass drainage system of an underground reservoir according to claim 6, further comprising an emergency drainage step including:
and when the water level in the first water tank exceeds the safe water level, opening an emergency drainage port of the vacuum drainage system, and draining water into the river channel.
8. The method for controlling the divided-by-mass drainage system of an underground reservoir according to claim 6, further comprising a sterilization step including:
when the fungus in the water in the third water tank exceeds the alarm, adding disinfectant into the third water tank through disinfectant supply equipment until the fungus in the water in the third water tank is lower than the alarm value.
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