CN114020054A - Overflow well liquid level following control system - Google Patents
Overflow well liquid level following control system Download PDFInfo
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- CN114020054A CN114020054A CN202111368436.2A CN202111368436A CN114020054A CN 114020054 A CN114020054 A CN 114020054A CN 202111368436 A CN202111368436 A CN 202111368436A CN 114020054 A CN114020054 A CN 114020054A
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- 239000007788 liquid Substances 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 230000033001 locomotion Effects 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 5
- 230000003028 elevating effect Effects 0.000 abstract description 6
- 235000020681 well water Nutrition 0.000 abstract description 6
- 239000002349 well water Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 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
Abstract
The invention provides a liquid level following control system for an overflow well, which comprises an overflow gate, a driving device, a gate opening sensor, a river channel liquid level sensor, a rain gauge and a central controller, wherein the overflow gate is connected with the driving device; wherein, gate opening sensor, river course level sensor and rain gauge detect the real-time opening degree value of overflow gate respectively, the water level height of river course and the regional actual rainfall value in river course place, central controller then opens the opening degree value according to real-time, water level height and actual rainfall value, send control command to drive arrangement, thereby make drive arrangement drive overflow gate carry out continuous elevating movement, this system not only can control overflow gate like this and carry out the switching of full open state and full closed state, and can also be according to the water level height and the actual rainfall value in river course, drive overflow gate in succession and go up and down, so that the opening degree of overflow gate can continuous variation, thereby furthest realizes the emission of overflow well water overflow.
Description
Technical Field
The invention relates to the technical field of water quantity regulation and storage, in particular to a liquid level following control system for an overflow well.
Background
At present, in an overflow anti-backflow system of a storage lock well, the opening and closing control of an anti-backflow gate is based on the water level height of a river, when the water level height of the river is lower, the anti-backflow gate is controlled to be fully opened, and when the rainfall is larger or the water level height of the river is higher, the anti-backflow gate is controlled to be fully closed. It can be seen that the existing anti-backflow gate can only be switched between a fully opened state and a fully closed state, and the opening degree of the anti-backflow gate cannot be continuously adjusted, so that the well water overflow of an overflow well cannot be discharged to the maximum extent, and the opening timeliness and the reliability of the anti-backflow gate cannot be guaranteed at different water level heights or rainfall.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a liquid level following control system for an overflow well, which comprises an overflow gate, a driving device, a gate opening sensor, a river channel liquid level sensor, a rain gauge and a central controller, wherein the overflow gate is connected with the driving device; wherein, gate opening sensor, river course level sensor and rain gauge detect the real-time opening degree value of overflow gate respectively, the water level height of river course and the regional actual rainfall value in river course place, central controller then opens the opening degree value according to real-time, water level height and actual rainfall value, send control command to drive arrangement, thereby make drive arrangement drive overflow gate carry out continuous elevating movement, this system not only can control overflow gate like this and carry out the switching of full open state and full closed state, and can also be according to the water level height and the actual rainfall value in river course, drive overflow gate and go up and down continuously, so that the opening degree of overflow gate can continuous variation, thereby furthest realizes the emission of overflow well water overflow and guarantees overflow gate's opening timeliness and reliability under different water level height or rainfall.
The invention provides a liquid level following control system for an overflow well, which comprises:
the overflow gate is arranged between the overflow well and the river channel and used for controlling the river water transmission quantity between the overflow well and the river channel;
the driving device is in driving connection with the overflow gate and is used for driving the overflow gate to perform lifting motion so as to adjust the real-time opening degree value of the overflow gate;
the gate opening sensor is arranged on the overflow gate and used for detecting the real-time opening value of the overflow gate;
the river channel liquid level sensor is arranged on the river channel and used for detecting the water level height of the river channel;
the rain gauge is used for detecting the actual rain amount value of the area where the river channel is located;
the central controller is respectively connected with the driving device, the gate opening sensor, the river channel liquid level sensor and the rain gauge and is used for sending a control instruction to the driving device according to the real-time opening value, the water level height and the actual rain amount value so as to enable the driving device to drive the overflow gate to perform continuous lifting movement;
further, the overflow gate comprises a gate body and a gate door frame; wherein the content of the first and second substances,
the gate door frame comprises a first sliding chute and a second sliding chute, and the first sliding chute and the second sliding chute are respectively and fixedly arranged at the left side and the right side of a junction area between the overflow well and the river channel;
two sides of the gate body are respectively embedded on the first sliding groove and the second sliding groove and can slide along the length direction of the first sliding groove and the second sliding groove;
further, the driving device comprises a motor, a lifting driving rod and a bearing; wherein the content of the first and second substances,
an output shaft of the motor is connected with the lifting driving rod, and the lifting driving rod is connected with the gate body through the bearing;
when the motor operates, the output shaft drives the lifting driving rod to perform lifting motion, so that the gate body can perform lifting motion along the length direction of the first sliding chute and the second sliding chute, and the real-time opening degree value of the overflow gate is adjusted;
further, a first limit switch and a second limit switch are respectively arranged at the bottommost end and the topmost end of the first sliding groove or the second sliding groove;
the first limit switch and the second limit switch are both connected with the central controller;
when the gate body slides to the bottommost end or the topmost end of the first sliding groove or the second sliding groove, the first limit switch or the second limit switch sends a feedback signal to the central controller;
when the central controller receives the feedback signal, the central controller instructs the driving device to stop working;
further, the gate opening sensor is a photoelectric opening sensor;
the photoelectric opening sensor comprises a laser transmitter, a laser receiver, a timer and a microcomputer;
the laser emitter is arranged at the bottommost end of the first sliding groove or the second sliding groove;
the laser receiver is arranged on one side surface of the gate body facing the bottom of the river channel and is aligned to the laser transmitter;
the laser transmitter and the laser receiver are both connected with the timer, and the timer is connected with the microcomputer;
the timer is used for determining the time required by the laser transmitter to transmit the laser beam until the laser receiver receives the laser beam;
the microcomputer is used for determining a real-time opening degree value of the gate body relative to the bottom of the river channel according to the required time;
further, the river channel liquid level sensor is a distributed liquid level sensor;
the distributed liquid level sensor comprises a plurality of liquid level sub-sensors and data collectors which are arranged at different positions on the river channel;
the data acquisition unit is connected with all the liquid level sub-sensors and is used for acquiring the water level heights detected by all the liquid level sub-sensors;
the data acquisition unit is also connected with the central controller, and the central controller is used for determining corresponding average water level height according to the water level heights detected by all the liquid level sub-sensors respectively, so that the average water level height is used as the actual water level height of the river channel;
further, the rain gauge is used for detecting an actual rain value corresponding to each hour of the area where the river channel is located;
further, the system also comprises a touch display screen which is connected with the central controller;
the touch display screen is used for inputting corresponding river channel lowest water level value, overflow gate full-open river channel water level value, overflow gate full-close river channel water level value and preset rainfall threshold value to the central controller;
the central controller is used for sending a control instruction to the driving device according to the real-time opening degree value, the water level height, the actual rainfall value, the river channel lowest water level value, the overflow gate fully-opened river channel water level value, the overflow gate fully-closed river channel water level value and the preset rainfall threshold value, so that the driving device drives the overflow gate to move up and down;
further, the central controller sends a control instruction to the driving device, so that the driving device drives the overflow gate to perform lifting motion specifically comprises:
comparing the actual rainfall value with a preset rainfall threshold, and when the actual rainfall value is greater than or equal to the preset rainfall threshold, sending a first control instruction to the driving device, so that the driving device drives the overflow gate to move to a completely closed state;
when the actual rainfall value is smaller than a preset rainfall threshold value, and the water level value of the overflow gate fully-opened river channel is smaller than or equal to the water level height of the overflow gate fully-closed river channel and smaller than the water level value of the overflow gate fully-closed river channel, sending a second control instruction to the driving device, and enabling the driving device to adjust the real-time opening value of the overflow gate according to the change of the water level height of the river channel;
when the actual rainfall value is smaller than a preset rainfall threshold value, and the lowest water level value of the river channel is not more than the water level height and is smaller than the full-open river channel water level value of the overflow gate, sending a third control instruction to the driving device to enable the driving device to drive the overflow gate to move to a full-open state;
when the actual rainfall value is smaller than a preset rainfall threshold value and the water level value of the overflow gate fully-closed river channel is smaller than or equal to the water level height, sending a fourth control instruction to the driving device to enable the driving device to drive the overflow gate to move to a fully-closed state;
further, the central controller sends a second control instruction to the driving device, so that the driving device adjusts the real-time opening degree value of the overflow gate according to the change of the water level height of the river channel, and the method specifically includes:
and the central controller determines the difference value between the real-time opening degree value of the overflow gate and the water level height of the river channel, and simultaneously adjusts the real-time opening degree value of the overflow gate so as to ensure that the difference value is within a preset range.
Compared with the prior art, the overflow well liquid level following control system comprises an overflow gate, a driving device, a gate opening sensor, a river channel liquid level sensor, a rain gauge and a central controller; wherein, gate opening sensor, river course level sensor and rain gauge detect the real-time opening degree value of overflow gate respectively, the water level height of river course and the regional actual rainfall value in river course place, central controller then opens the opening degree value according to real-time, water level height and actual rainfall value, send control command to drive arrangement, thereby make drive arrangement drive overflow gate carry out continuous elevating movement, this system not only can control overflow gate like this and carry out the switching of full open state and full closed state, and can also be according to the water level height and the actual rainfall value in river course, drive overflow gate and go up and down continuously, so that the opening degree of overflow gate can continuous variation, thereby furthest realizes the emission of overflow well water overflow and guarantees overflow gate's opening timeliness and reliability under different water level height or rainfall.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a spill well liquid level following control system provided by the invention.
Fig. 2 is a schematic structural diagram of a gate opening sensor in an overflow well liquid level following control system provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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, a schematic structural diagram of a spill well liquid level following control system according to the present invention is shown. This overflow well liquid level following control system includes:
the overflow gate is arranged between the overflow well and the river channel and used for controlling the river water transmission quantity between the overflow well and the river channel;
the driving device is in driving connection with the overflow gate and is used for driving the overflow gate to perform lifting motion so as to adjust the real-time opening degree value of the overflow gate;
the gate opening sensor is arranged on the overflow gate and used for detecting the real-time opening value of the overflow gate;
the river channel liquid level sensor is arranged on the river channel and used for detecting the water level height of the river channel;
the rain gauge is used for detecting the actual rain amount value of the area where the river channel is located;
and the central controller is respectively connected with the driving device, the gate opening sensor, the river channel liquid level sensor and the rain gauge and is used for sending a control instruction to the driving device according to the real-time opening value, the water level height and the actual rain amount value, so that the driving device drives the overflow gate to perform continuous lifting motion.
In the overflow well liquid level following control system, the overflow gate is arranged in a transition area between the overflow well and the river channel, and the overflow gate can perform lifting movement. When this overflow gate closed completely, it can separate in overflow well and the river course to block the mutual transmission of river between overflow well and the river course and avoid river to flow backward and get into the overflow well. When this overflow well was opened, the mutual transmission of river water can be carried out between overflow well and the river course to in time arrange the well water of overflow well in the river course. In addition, this system still is provided with gate opening sensor, river course level sensor and rain gauge detect this overflow gate's real-time opening degree value respectively, the water level height in this river course and the regional actual rainfall value in this river course place, central controller can open the degree of opening according to real-time, water level height and actual rainfall value in time and accurately instruct drive arrangement drive this overflow gate to carry out continuous elevating movement, thereby the mutual transmission of water between overflow well and the river course under the different rainfall of adaptation, thereby discharge the inflow of overflow well in time in the river course and avoid the river water in river course to flow backward and get into in the overflow well.
In some embodiments, the overflow gate comprises a gate body and a gate frame; wherein the content of the first and second substances,
the gate door frame comprises a first chute and a second chute, and the first chute and the second chute are respectively and fixedly arranged at the left side and the right side of a junction area between the overflow well and the river channel;
the two sides of the gate body are respectively embedded on the first sliding groove and the second sliding groove and can slide along the length direction of the first sliding groove and the second sliding groove.
The driving device comprises a motor, a lifting driving rod and a bearing; wherein the content of the first and second substances,
the output shaft of the motor is connected with the lifting driving rod, and the lifting driving rod is connected with the gate body through the bearing;
when the motor operates, the output shaft drives the lifting driving rod to perform lifting motion, so that the gate body can perform lifting motion along the length direction of the first sliding groove and the second sliding groove, and the real-time opening degree value of the overflow gate is adjusted.
Through fixed first spout and the second spout of setting up in the left and right sides in the region of this overflow well and this river course handing-over transition each other to this constitutes the gate door frame, and the shape of this first spout and second spout is the same, and its inslot width and the thickness phase-match of this gate body, this gate body can install and inlay and establish in this first spout and this second spout like this, and can also carry out continuous slip from top to bottom along the length direction of this first spout and this second spout. When this gate body slides about going on in succession, can realize overflow gate's open mode, closed condition and different opening degree states to be convenient for carry out real-time continuous control according to the drainage demand of reality and prevent flowing backward the demand to overflow gate. In addition, this drive arrangement drives the lift actuating lever through step motor or servo motor and moves, and then drives this gate body with the help of the bearing and carries out elevating movement along this first spout and this second spout to adjust this overflow gate's opening degree value in real time and continuously.
In some embodiments, the bottommost end and the topmost end of the first sliding chute or the second sliding chute are respectively provided with a first limit switch and a second limit switch;
the first limit switch and the second limit switch are both connected with the central controller;
when the gate body slides to the bottommost end or the topmost end of the first sliding chute or the second sliding chute, the first limit switch or the second limit switch sends a feedback signal to the central controller;
when the central controller receives the feedback signal, the central controller instructs the driving device to stop working.
Through set up first limit switch and second limit switch on the bottommost end and the topmost end at this first spout or this second spout respectively, can slide to the bottommost position or the topmost position of this first spout or this second spout at this gate body through setting up above-mentioned two limit switch, generate corresponding feedback signal to this reminds this central controller can in time instruct this drive arrangement stop work, thereby avoids this gate body to continue to slide and take place the condition of derailing.
In some embodiments, fig. 2 is a schematic structural diagram of a gate opening sensor in an overflow well liquid level following control system provided by the invention. The gate opening sensor is a photoelectric opening sensor;
the photoelectric opening sensor comprises a laser transmitter, a laser receiver, a timer and a microcomputer;
the laser emitter is arranged at the bottommost end of the first sliding groove or the second sliding groove;
the laser receiver is arranged on one side surface of the gate body facing the bottom of the river channel and is aligned to the laser transmitter;
the laser transmitter and the laser receiver are both connected with the timer, and the timer is connected with the microcomputer;
the timer is used for determining the time required by the laser transmitter to transmit the laser beam until the laser receiver receives the laser beam;
the microcomputer is used for determining the real-time opening degree value of the gate body relative to the bottom of the river channel according to the required time.
Through set up laser emitter and laser receiver respectively at the bottommost end of this first spout or this second spout and on this gate body faces a side of this river course bottom, confirm the real-time opening degree value of this gate body for this river course bottom through laser flight time's mode to improve the calculation accuracy and the reliability of opening degree value in real time.
In some embodiments, the river level sensor is a distributed level sensor;
the distributed liquid level sensor comprises a plurality of liquid level sub-sensors and data collectors which are arranged at different positions on the river channel;
the data acquisition unit is connected with all the liquid level sub-sensors and is used for acquiring the water level heights detected by all the liquid level sub-sensors;
the data acquisition unit is also connected with the central controller, and the central controller is used for determining corresponding average water level height according to the water level heights detected by all the liquid level sub-sensors respectively, so that the average water level height is used as the actual water level height of the river channel.
River water in the river channel is in a flowing state, the water level heights of different positions in the river channel are not the same, and if the water level height is detected only at a single position, the water level height measurement error easily exists. Through set up the level sub sensor respectively in different positions department on this river course, confirm corresponding average water level height then to improve the accuracy that the actual water level height of river course confirms.
In some embodiments, the rain gauge is used to detect an actual rain amount value for each hour of the area where the river is located. The rainfall meter detects the actual rainfall value corresponding to each hour, and the reliability of rainfall detection can be improved.
In some embodiments, the spill well level following control system further comprises a touch display screen connected to the central controller;
the touch display screen is used for inputting corresponding river channel lowest water level value, overflow gate full-open river channel water level value, overflow gate full-close river channel water level value and preset rainfall threshold value to the central controller;
the central controller is used for sending a control instruction to the driving device according to the real-time opening degree value, the water level height, the actual rainfall value, the lowest water level value of the river channel, the water level value of the overflow gate fully opened river channel, the water level value of the overflow gate fully closed river channel and the preset rainfall threshold value, so that the driving device drives the overflow gate to perform lifting motion.
Through setting up touch display screen as human-computer interaction interface, the staff can set up suitable river course minimum water level value, overflow gate full-open river course water level value, overflow gate full-close river course water level value and predetermine the rainfall threshold value according to the actual conditions adaptability ground in overflow well and river course like this to improve overflow gate lift control's reliability.
In some embodiments, the sending of the control instruction from the central controller to the driving device to make the driving device drive the overflow gate to perform the lifting motion specifically includes:
comparing the actual rainfall value with a preset rainfall threshold, and when the actual rainfall value is greater than or equal to the preset rainfall threshold, sending a first control instruction to the driving device, so that the driving device drives the overflow gate to move to a completely closed state;
when the actual rainfall value is smaller than the preset rainfall threshold value and the water level height of the overflow gate fully-opened river channel is smaller than the water level height of the overflow gate fully-closed river channel, sending a second control instruction to the driving device to enable the driving device to adjust the real-time opening degree value of the overflow gate according to the change of the water level height of the river channel;
when the actual rainfall value is smaller than the preset rainfall threshold value and the lowest water level value of the river channel is not more than the water level height < the overflow gate full-open river channel water level value, sending a third control instruction to the driving device to enable the driving device to drive the overflow gate to move to a full-open state;
and when the actual rainfall value is smaller than the preset rainfall threshold value and the water level value of the overflow gate fully-closed river channel is less than or equal to the water level height, sending a fourth control instruction to the driving device to enable the driving device to drive the overflow gate to move to a fully-closed state.
Under the conditions of different actual rainfall values and different water level heights, the central controller adaptively switches the overflow gate among a fully closed state, a fully opened state and a continuous lifting state, so that the overflow gate can effectively discharge the inlet water of the overflow well and prevent river water from flowing backwards into the overflow well under the conditions of different rainfall sizes and different water level heights.
In some embodiments, the sending, by the central controller, a second control instruction to the driving device, so that the driving device adjusts the real-time opening degree value of the overflow gate according to the change of the water level height of the river specifically includes:
the central controller determines the difference between the real-time opening degree value of the overflow gate and the water level height of the river channel, and simultaneously adjusts the real-time opening degree value of the overflow gate so as to ensure that the difference is within a preset range.
The difference between the real-time opening degree value of the overflow gate and the water level height of the river channel is determined, and the real-time opening degree value of the overflow gate is adjusted at the same time, so that the difference is guaranteed to be within a preset range, the real-time opening degree value of the overflow gate can be adjusted in real time according to the water level height, and therefore the overflow gate can drain water to the maximum extent all the time no matter the height of the water level height is guaranteed.
From the content of the above embodiment, the overflow well liquid level following control system comprises an overflow gate, a driving device, a gate opening sensor, a river channel liquid level sensor, a rain gauge and a central controller; wherein, gate opening sensor, river course level sensor and rain gauge detect the real-time opening degree value of overflow gate respectively, the water level height of river course and the regional actual rainfall value in river course place, central controller then opens the opening degree value according to real-time, water level height and actual rainfall value, send control command to drive arrangement, thereby make drive arrangement drive overflow gate carry out continuous elevating movement, this system not only can control overflow gate like this and carry out the switching of full open state and full closed state, and can also be according to the water level height and the actual rainfall value in river course, drive overflow gate and go up and down continuously, so that the opening degree of overflow gate can continuous variation, thereby furthest realizes the emission of overflow well water overflow and guarantees overflow gate's opening timeliness and reliability under different water level height or rainfall.
Claims (10)
1. A spill well level following control system, comprising:
the overflow gate is arranged between the overflow well and the river channel and used for controlling the river water transmission quantity between the overflow well and the river channel;
the driving device is in driving connection with the overflow gate and is used for driving the overflow gate to perform lifting motion so as to adjust the real-time opening degree value of the overflow gate;
the gate opening sensor is arranged on the overflow gate and used for detecting the real-time opening value of the overflow gate;
the river channel liquid level sensor is arranged on the river channel and used for detecting the water level height of the river channel;
the rain gauge is used for detecting the actual rain amount value of the area where the river channel is located;
and the central controller is respectively connected with the driving device, the gate opening sensor, the river channel liquid level sensor and the rain gauge and is used for sending a control instruction to the driving device according to the real-time opening value, the water level height and the actual rain amount value, so that the driving device drives the overflow gate to perform continuous lifting motion.
2. The overflow well liquid level following control system of claim 1, wherein:
the overflow gate comprises a gate body and a gate door frame; wherein the content of the first and second substances,
the gate door frame comprises a first sliding chute and a second sliding chute, and the first sliding chute and the second sliding chute are respectively and fixedly arranged at the left side and the right side of a junction area between the overflow well and the river channel;
the two sides of the gate body are respectively embedded on the first sliding groove and the second sliding groove and can slide along the length direction of the first sliding groove and the second sliding groove.
3. The spill well fluid level following control system of claim 2, wherein:
the driving device comprises a motor, a lifting driving rod and a bearing; wherein the content of the first and second substances,
an output shaft of the motor is connected with the lifting driving rod, and the lifting driving rod is connected with the gate body through the bearing;
when the motor operates, the output shaft drives the lifting driving rod to perform lifting motion, so that the gate body can perform lifting motion along the length direction of the first sliding groove and the second sliding groove, and the real-time opening degree value of the overflow gate is adjusted.
4. The spill well fluid level following control system of claim 3, wherein:
the bottommost end and the topmost end of the first sliding groove or the second sliding groove are respectively provided with a first limit switch and a second limit switch;
the first limit switch and the second limit switch are both connected with the central controller;
when the gate body slides to the bottommost end or the topmost end of the first sliding groove or the second sliding groove, the first limit switch or the second limit switch sends a feedback signal to the central controller;
and when the central controller receives the feedback signal, the central controller instructs the driving device to stop working.
5. The spill well fluid level following control system of claim 2, wherein:
the gate opening sensor is a photoelectric opening sensor;
the photoelectric opening sensor comprises a laser transmitter, a laser receiver, a timer and a microcomputer;
the laser emitter is arranged at the bottommost end of the first sliding groove or the second sliding groove;
the laser receiver is arranged on one side surface of the gate body facing the bottom of the river channel and is aligned to the laser transmitter;
the laser transmitter and the laser receiver are both connected with the timer, and the timer is connected with the microcomputer;
the timer is used for determining the time required by the laser transmitter to transmit the laser beam until the laser receiver receives the laser beam;
and the microcomputer is used for determining the real-time opening degree value of the gate body relative to the bottom of the river channel according to the required time.
6. The overflow well liquid level following control system of claim 1, wherein:
the river channel liquid level sensor is a distributed liquid level sensor;
the distributed liquid level sensor comprises a plurality of liquid level sub-sensors and data collectors which are arranged at different positions on the river channel;
the data acquisition unit is connected with all the liquid level sub-sensors and is used for acquiring the water level heights detected by all the liquid level sub-sensors;
the data acquisition unit is also connected with the central controller, and the central controller is used for determining corresponding average water level height according to the water level heights detected by all the liquid level sub-sensors respectively, so that the average water level height is used as the actual water level height of the river channel.
7. The overflow well liquid level following control system of claim 1, wherein:
the rain gauge is used for detecting the actual rain amount value corresponding to each hour of the area where the river channel is located.
8. The overflow well liquid level following control system of claim 1, wherein:
the touch display screen is connected with the central controller;
the touch display screen is used for inputting corresponding river channel lowest water level value, overflow gate full-open river channel water level value, overflow gate full-close river channel water level value and preset rainfall threshold value to the central controller;
the central controller is used for sending a control instruction to the driving device according to the real-time opening degree value, the water level height, the actual rainfall value, the river channel lowest water level value, the overflow gate full-opening river channel water level value, the overflow gate full-closing river channel water level value and the preset rainfall threshold value, so that the driving device drives the overflow gate to perform lifting motion.
9. The spill well fluid level following control system of claim 7, wherein:
the central controller sends a control instruction to the driving device, so that the driving device drives the overflow gate to perform lifting motion, and the method specifically comprises the following steps:
comparing the actual rainfall value with a preset rainfall threshold, and when the actual rainfall value is greater than or equal to the preset rainfall threshold, sending a first control instruction to the driving device, so that the driving device drives the overflow gate to move to a completely closed state;
when the actual rainfall value is smaller than a preset rainfall threshold value, and the water level value of the overflow gate fully-opened river channel is smaller than or equal to the water level height of the overflow gate fully-closed river channel and smaller than the water level value of the overflow gate fully-closed river channel, sending a second control instruction to the driving device, and enabling the driving device to adjust the real-time opening value of the overflow gate according to the change of the water level height of the river channel;
when the actual rainfall value is smaller than a preset rainfall threshold value, and the lowest water level value of the river channel is not more than the water level height and is smaller than the full-open river channel water level value of the overflow gate, sending a third control instruction to the driving device to enable the driving device to drive the overflow gate to move to a full-open state;
and when the actual rainfall value is smaller than the preset rainfall threshold value and the water level value of the overflow gate fully-closed river channel is less than or equal to the water level height, sending a fourth control instruction to the driving device to enable the driving device to drive the overflow gate to move to a fully-closed state.
10. The spill well fluid level following control system of claim 9, wherein:
the central controller sends a second control instruction to the driving device, so that the driving device adjusts the real-time opening degree value of the overflow gate according to the change of the water level height of the river channel, and the method specifically comprises the following steps:
and the central controller determines the difference value between the real-time opening degree value of the overflow gate and the water level height of the river channel, and simultaneously adjusts the real-time opening degree value of the overflow gate so as to ensure that the difference value is within a preset range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111368436.2A CN114020054B (en) | 2021-11-18 | 2021-11-18 | Overflow well liquid level following control system |
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