CN113293740A - Lower open weir gate with self-adaptive control system - Google Patents
Lower open weir gate with self-adaptive control system Download PDFInfo
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- CN113293740A CN113293740A CN202011112320.8A CN202011112320A CN113293740A CN 113293740 A CN113293740 A CN 113293740A CN 202011112320 A CN202011112320 A CN 202011112320A CN 113293740 A CN113293740 A CN 113293740A
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- 239000007788 liquid Substances 0.000 claims abstract description 82
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 68
- 230000003044 adaptive effect Effects 0.000 claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 15
- 238000011010 flushing procedure Methods 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 description 12
- 230000001360 synchronised effect Effects 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
- E02B7/36—Elevating mechanisms for vertical-lift gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/04—Valves, slides, or the like; Arrangements therefor; Submerged sluice gates
- E02B8/045—Valves, slides, or the like; Arrangements therefor; Submerged sluice gates automatically movable
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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Abstract
The application relates to a lower-opening weir gate with an adaptive control system, which comprises a door plate, a hydraulic oil cylinder and an adaptive control system, wherein the door plate can move up and down relative to a door frame; the first end of the hydraulic oil cylinder is connected with the door frame, and the second end of the hydraulic oil cylinder is connected with the door plate; the self-adaptive control system comprises a linear control device for controlling the door panel to move linearly, a first radar liquid level meter, a second radar liquid level meter and a control device; the first radar liquid level meter is arranged on the inner side of the door plate, the second radar liquid level meter is arranged on the outer side of the door plate, the first end of the linear control device is connected with the control end of the hydraulic oil cylinder, and the second end of the linear control device, the first radar liquid level meter and the second radar liquid level meter are connected with the control device. The application discloses under formula weir gate passes through self-adaptation control system, can realize the intelligent control to under formula weir gate.
Description
Technical Field
The application relates to the field of drainage engineering, in particular to a lower open weir gate with a self-adaptive control system.
Background
The lower open weir gate is a common device in drainage engineering. The following problem exists in the current formula weir door of opening down: the intelligent degree is low; under the working condition that the regulation or the flow regulation is needed, the accurate regulation of the opening position and the opening speed of the weir gate cannot be realized; the fault of the open weir gate cannot be accurately judged; the linear acceleration and deceleration control of the weir gate cannot be realized, so that the impact of the equipment is larger; meanwhile, the resistance on the two sides of the door plate is different, so that the door plate is inclined in the movement process and cannot be dynamically adjusted, and further clamping stagnation is generated, and the door plate cannot normally operate.
Disclosure of Invention
To solve the above technical problem or at least partially solve the above technical problem, the present application provides a lower opening weir gate with an adaptive control system.
The application provides a lower-opening weir gate with a self-adaptive control system, wherein the lower-opening weir gate comprises a door plate capable of moving up and down relative to a door frame, a hydraulic oil cylinder and the self-adaptive control system; the first end of the hydraulic oil cylinder is connected with the door frame, and the second end of the hydraulic oil cylinder is connected with the door plate; the self-adaptive control system comprises a linear control device for controlling the door panel to move linearly, a first radar liquid level meter, a second radar liquid level meter and a control device; the first radar liquid level meter is arranged on the inner side of the door plate, the second radar liquid level meter is arranged on the outer side of the door plate, the first end of the linear control device is connected with the control end of the hydraulic oil cylinder, and the second end of the linear control device, the first radar liquid level meter and the second radar liquid level meter are connected with the control device.
Optionally, the linear control device includes a displacement sensor and an electro-hydraulic servo solenoid valve; the displacement sensor is arranged inside the hydraulic oil cylinder; the first end of the electro-hydraulic servo electromagnetic valve is connected with the control end of the hydraulic oil cylinder, and the second end of the electro-hydraulic servo electromagnetic valve and the displacement sensor are connected with the control device.
Optionally, the control device includes a main controller and an adaptive controller; the first radar liquid level meter and the second radar liquid level meter are connected with the main controller; the signal receiving end of the electro-hydraulic servo electromagnetic valve and the displacement sensor are connected with the self-adaptive controller; and a communication connection is established between the main controller and the self-adaptive controller.
Optionally, the main controller is configured to determine a target opening value of the weir gate and a target speed of the door panel according to the inside liquid level data and the outside liquid level data respectively obtained from the first radar liquid level meter and the second radar liquid level meter;
the self-adaptive controller is used for obtaining an opening signal and a hydraulic oil quantity control signal according to the weir gate opening target value and the target speed, and sending the opening signal and the hydraulic oil quantity control signal to the electro-hydraulic servo electromagnetic valve, so that the electro-hydraulic servo electromagnetic valve controls the opening and the moving speed of the door panel according to the opening signal and the hydraulic oil quantity control signal.
Optionally, the adaptive controller is further configured to obtain a weir gate opening feedback value and a weir gate speed feedback value from the displacement sensor, perform PID control according to the weir gate opening feedback value, the weir gate speed feedback value, the weir gate opening target value, and the target speed, and adjust the opening signal and the hydraulic oil flow control signal.
Optionally, the number of the hydraulic oil cylinders is 2, and the 2 hydraulic oil cylinders are respectively arranged on 2 side edges of the door panel; each hydraulic oil cylinder is correspondingly connected with an electro-hydraulic servo electromagnetic valve.
Optionally, the adaptive controller is further configured to synchronously send the opening signal and the hydraulic oil flow control signal to 2 electro-hydraulic servo solenoid valves, and synchronously adjust the opening signal and the hydraulic oil flow control signal.
Optionally, the adaptive controller is further configured to perform fault detection according to the weir gate opening feedback value and the weir gate speed feedback value.
Optionally, the main controller is specifically configured to determine a weir gate opening target value and a target speed of the door panel according to the inside liquid level data, the outside liquid level data, and preset water storage liquid level data acquired from the first radar liquid level meter and the second radar liquid level meter respectively in the water storage process; and/or the presence of a gas in the gas,
in each flushing process, when the inside liquid level data reaches preset flushing liquid level data, setting the opening target value of the weir gate as the maximum opening degree, and when the inside liquid level data reaches preset flushing time, setting the opening target value of the weir gate as closed; and/or the presence of a gas in the gas,
in the flood discharging process, when the inner side liquid level data reach preset flood discharging liquid level data and the outer side liquid level data belong to preset safe liquid level data, setting the opening target value of the weir gate as the maximum opening degree;
the self-adaptive controller is also used for adjusting the opening target value of the weir gate according to the preset water storage level so as to realize flow control.
Optionally, the main controller is a PLC controller, and the adaptive controller is a micro programmable controller.
Optionally, both sides of door frame all are equipped with waterproof infrared induction system, two infrared induction system is in same level, infrared induction system with adaptive controller and alarm device connect, move to along on the door plant during infrared induction system, infrared induction system gives adaptive controller with the signal transmission who senses, and adaptive controller is according to receiving two whether the edge is horizontal on the door plant, and whether the door plant produces the slope promptly, receives two simultaneously when adaptive controller during infrared induction system's signal, the door plant level explains the door plant slope when two signals have time difference, alarm device connects adaptive controller can send alarm signal when the door plant slope. The alarm device can be installed together with the adaptive control system, and can also be independently arranged in a main control room which is convenient for technicians to control.
Optionally, an equivalent mode or a master-slave mode may be selected as required, where the "equivalent mode (fig. 3)" is to input operation parameters in the touch screen, the hydraulic cylinders (2a, 2b) controlled by the left and right electro-hydraulic servo solenoid valves (6a, 6b) track the ideal output set in the touch screen and are respectively controlled to achieve synchronous driving, and the "master-slave mode (fig. 4)" is to track the selected ideal output and achieve synchronous driving by the hydraulic cylinders (2a, 2b) controlled by the left and right electro-hydraulic servo solenoid valves (6a, 6 b).
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the embodiment of the application provides an open weir gate under constitutes a self-adaptation control system through linear control device, radar level gauge and controlling means to can realize the intelligent control to open weir gate under, effectively improve the intelligent degree of current open weir gate under, and linear control device can realize the linearity of open weir gate under add, speed reduction control, effectively reduce the impact force of weir gate, improve the life of weir gate.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a lower opening weir gate with an adaptive control system according to various embodiments of the present application;
fig. 2 is a schematic diagram of the operation of the lower opening weir gate with an adaptive control system according to various embodiments of the present application;
FIG. 3 is an equivalent control mode of 2 controlled hydraulic oil cylinders provided by various embodiments of the present application;
FIG. 4 is a master-slave control mode of 2 controlled hydraulic oil cylinders provided in various embodiments of the present application.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The embodiment of the invention provides a lower opening type weir gate with an adaptive control system, which comprises a door plate 1 capable of moving up and down relative to a door frame, a hydraulic oil cylinder 2 and the adaptive control system, as shown in fig. 1 and 2; the first end of the hydraulic oil cylinder is connected with the door frame, and the second end of the hydraulic oil cylinder is connected with the door plate; that is to say, the door frame is connected with the concrete, and the door plant is connected with hydraulic cylinder, and the door plant is driven by hydraulic cylinder and is the up-and-down motion in the guide way of door frame, and is opening downwards, upwards for closing.
The self-adaptive control system comprises a linear control device for controlling the door panel to move linearly, a first radar liquid level meter 5, a second radar liquid level meter and a control device 4; the first radar liquid level meter 5 is arranged on the inner side of the door plate, the second radar liquid level meter is arranged on the outer side of the door plate, the first end of the linear control device is connected with the control end of the hydraulic oil cylinder, and the second end of the linear control device, the first radar liquid level meter and the second radar liquid level meter are all connected with the control device.
For the sake of simplicity of description, the lower opening weir in the embodiment of the present invention may be simply referred to as a weir. According to the embodiment of the invention, the linear control device, the radar liquid level meter and the control device form the self-adaptive control system, so that the intelligent control of the downward opening weir gate can be realized, the intelligent degree of the existing downward opening weir gate can be effectively improved, the linear control device can realize the linear acceleration and deceleration control of the downward opening weir gate, the impact force of the weir gate can be effectively reduced, and the service life of the weir gate can be prolonged.
The linear control device comprises a displacement sensor 3 and an electro-hydraulic servo solenoid valve 6; the displacement sensor 3 is arranged inside the hydraulic oil cylinder 2; the first end of the electro-hydraulic servo electromagnetic valve is connected with the control end of the hydraulic oil cylinder, and the second end of the electro-hydraulic servo electromagnetic valve and the displacement sensor 3 are connected with the control device 4. The displacement sensor adopts a magnetostriction type, has a protection grade of more than IP67, has response time of less than 0.5ms, is arranged in the hydraulic oil cylinder, and can detect the position and the speed of the hydraulic oil cylinder in real time. The displacement sensor is arranged in the hydraulic oil cylinder, so that the displacement sensor is effectively protected.
The control device comprises a main controller (PLC) and a self-adaptive controller; the first radar liquid level meter and the second radar liquid level meter are connected with the main controller; the signal receiving end of the electro-hydraulic servo electromagnetic valve and the displacement sensor are connected with the self-adaptive controller; and a communication connection is established between the main controller and the self-adaptive controller.
In some embodiments, the main controller is configured to determine a weir opening target value and a target speed of the door panel based on the inside liquid level data and the outside liquid level data obtained from the first radar level gauge and the second radar level gauge, respectively; the weir gate opening target value and the target speed of the door panel can be calculated according to a preset calculation mode, for example, when the inner side liquid level data reaches a preset opening value and the inner side liquid level data is greater than the outer side liquid level data, the weir gate opening target value and the target speed of the door panel can be determined according to the corresponding relation between the preset inner side liquid level data, the weir gate opening target value and the target speed of the door panel. Or calculating the opening target value of the weir gate according to a preset flow calculation formula according to a preset set flow;
optionally, the adaptive controller is configured to obtain an opening signal and a hydraulic oil flow control signal according to the weir gate opening target value and the target speed, and send the opening signal and the hydraulic oil flow control signal to the electro-hydraulic servo solenoid valve, so that the electro-hydraulic servo solenoid valve controls the opening and the moving speed of the door panel according to the opening signal and the hydraulic oil flow control signal. The built-in displacement sensor and the electro-hydraulic servo solenoid valve are connected with the self-adaptive controller, and the functions of linear opening and linear closing of the lower opening weir gate are realized.
The embodiment realizes high-precision control of the weir gate, wherein the opening signal output by the adaptive controller controls the opening of the electro-hydraulic servo solenoid valve, the speed of the hydraulic oil cylinder is further controlled by controlling the flow of hydraulic oil, the position/speed of the open-type weir gate is fed back to the controller by the built-in displacement sensor of the hydraulic oil cylinder, the accurate control of the open position/speed of the open-type weir gate is realized through the analysis and operation of the adaptive controller, and the control precision is not lower than three thousandths.
The displacement sensor transmits signals and data of the operation of the hydraulic oil cylinder to the self-adaptive controller through a cable for processing. The self-adaptive controller is a micro programmable controller, is arranged in an electric control cabinet, is internally provided with a proportion module and an integral module (the proportion action accelerates the response speed of the system and improves the adjustment precision of the system, the integral action eliminates steady-state errors and improves the adjustment precision of the system), and can edit and process data to realize various functions required by the system.
In detail, as shown in fig. 2, a left hydraulic oil cylinder and a right hydraulic oil cylinder are adopted to provide driving force for the operation of the lower opening type weir gate. And magnetostrictive displacement sensors 3a and 3b arranged in the hydraulic oil cylinder are used for monitoring the opening state and the opening position of the open weir gate in real time, and analog quantity feedback signals (a weir gate opening feedback value and a weir gate speed feedback value) generated by the displacement sensors in real time are accessed into the self-adaptive controller. The two radar liquid level meters are respectively arranged on the front side and the rear side of the weir gate and are used for detecting the front water level height and the rear water level height of the weir gate, signals of the radar liquid level meters are fed back to a main controller (a Programmable Logic Controller (PLC)), an adaptive controller and the programmable controller adopt an Ethernet (TCP/IP) communication protocol for data exchange, the adaptive controller feeds back data to the programmable controller for data analysis and operation processing, a weir gate opening instruction is transmitted to the adaptive controller, and after the operation of the adaptive controller, the opening and closing control of the weir gate oil cylinders 2a and 2b is controlled through electro-hydraulic servo electromagnetic valves 6a and 6b, so that the closed-loop control of the weir gate is realized. Parameters and data of the whole self-adaptive control system are displayed, modified and set through a human-computer interface, and meanwhile, the self-adaptive control system is also provided with a video camera, so that the equipment state of the weir gate can be displayed and monitored in real time through the human-computer interface on the electro-hydraulic control cabinet.
The PLC calculates the opening of the lower opening weir according to the set flow of the system and by referring to a flow calculation formula; PID closed-loop operation control output of a weir gate opening target value (SV) and a weir gate opening feedback value (PV); the PLC is a main controller of the downward opening weir gate control system, the main function is to realize the opening calculation of the downward opening weir gate, the main function of the self-adaptive controller is PID operation control output, the opening control and synchronous control of the downward opening weir gate are realized, and the self-adaptive controller has the advantages of quick response and high precision.
That is to say, the adaptive controller is further configured to obtain a weir gate opening feedback value and a weir gate speed feedback value from the displacement sensor, perform PID control according to the weir gate opening feedback value, the weir gate speed feedback value, the weir gate opening target value, and the target speed, perform comparison operation, and adjust the opening signal and the hydraulic oil flow control signal.
In some embodiments, the number of hydraulic rams is 2, and 2 hydraulic rams are respectively disposed on 2 sides of the door panel; each hydraulic oil cylinder is correspondingly connected with an electro-hydraulic servo electromagnetic valve. Optionally, the adaptive controller is further configured to synchronously send the opening signal and the hydraulic oil flow control signal to 2 electro-hydraulic servo solenoid valves, and synchronously adjust the opening signal and the hydraulic oil flow control signal.
The two hydraulic oil cylinders are made of 304 stainless steel and are respectively arranged on the left side and the right side of the weir gate. The cylinder of the hydraulic cylinder is hinged with the door frame, and the piston rod is hinged with the door frame. The electro-hydraulic servo valve is arranged on a hydraulic station in the electric control cabinet, has higher response speed, has repetition precision less than or equal to 0.05 percent and is connected with the hydraulic oil cylinders 2 on the left side and the right side of the door plate of the lower opening type weir gate through hydraulic oil pipes. The direction and the opening degree of the electro-hydraulic servo electromagnetic valve are controlled by an output signal of the self-adaptive controller through a cable, and the direction and the speed of the hydraulic oil cylinder are further controlled.
The control method realizes the synchronous precision control of the two hydraulic oil cylinders, the signals output by the self-adaptive controller respectively control the opening degrees of the two groups of electro-hydraulic servo electromagnetic valves, the running speeds of the two hydraulic oil cylinders are further controlled, the speeds and relative positions of the two hydraulic oil cylinders are further fed back to the self-adaptive controller through the built-in displacement sensors, and the corresponding electro-hydraulic servo valves are further adjusted through the analysis and operation of the self-adaptive controller on data, so that a closed-loop control system is formed, and the synchronous running precision of the open weir gate is not lower than three thousandth.
The synchronous precision control also ensures the operation stability of the weir gate: in the actual working process of the weir gate, because the resistance of the two sides of the weir gate is different, the movement process of the weir gate is caused to generate left and right inclination, and then clamping stagnation is generated, the weir gate can not normally operate, and the gate plate can be dynamically adjusted through controlling the synchronous precision of the weir gate, so that the stability of the operation of equipment is increased.
In some embodiments, whether the position of the weir gate exceeds a preset position range or not and whether the weir gate reaches a specified position within a specified time can be judged through a displacement sensor arranged in the oil cylinder, so that whether the weir gate is in failure or not can be judged. That is to say, the adaptive controller is further configured to perform fault detection according to the weir opening feedback value and the weir speed feedback value, and determine whether the position of the door panel exceeds a preset position range and reaches a specified position within a specified time.
In some embodiments, the radar level gauge is installed in the front side and the rear side (inside and outside) of the lower open weir door for real-time detection of the height of the water level in the front of and behind the weir door, and the data of the liquid level height is transmitted to the main controller through a cable, and through analysis and operation of the controller, self-adaptive control of a water storage function, a flushing function, a flood discharge function and a flow regulation function is realized.
Specifically, the main controller is specifically configured to determine a weir gate opening target value and a target speed of a door panel according to inside liquid level data, outside liquid level data and preset water storage liquid level data acquired from the first radar liquid level meter and the second radar liquid level meter respectively in a water storage process; and/or the presence of a gas in the gas,
in each flushing process, when the inside liquid level data reaches preset flushing liquid level data, setting the opening target value of the weir gate as the maximum opening degree, and when the inside liquid level data reaches preset flushing time, setting the opening target value of the weir gate as closed; and/or the presence of a gas in the gas,
in the flood discharging process, when the inner side liquid level data reach preset flood discharging liquid level data and the outer side liquid level data belong to preset safe liquid level data, setting the opening target value of the weir gate as the maximum opening degree;
the self-adaptive controller is also used for adjusting the opening target value of the weir gate according to the preset water storage level so as to realize flow control.
The water storage function means that the lower open weir gate is completely closed in dry weather, the regulating and storing pool blocks the pipe network to prevent sludge from flowing through in dry weather, water storage is kept, and the water storage level is adjusted according to the opening degree (opening height) of the lower open weir gate.
The flushing function refers to that in dry seasons, the data of upstream and downstream water levels are detected by a radar liquid level meter, the timing opening and closing time of the open weir gate is set, and the flushing is set for a plurality of times every day (the flushing function is that in dry seasons, the open weir gate is closed, the weir gate is triggered to be opened quickly when the upstream liquid level reaches a set value and reaches a set delay time so as to flush the downstream pipeline, and the system is triggered and activated by set time so as to realize the flushing function).
When going flood the function and referring to the rainy season, detect upstream and downstream water level data according to the radar level gauge, set for open weir door and open completely, carry out the flood (go flood the function, during the rainy season, the upper reaches liquid level rises to the setting value fast, and the low reaches liquid level is still at safe liquid level, and the system triggers that the weir door is fast whole to be opened this moment, carries out the flood).
The flow control function means that when the overflow is required to be adjusted, the opening height of the lower opening weir gate is controlled to be adaptively changed according to a controller program, and the overflow is kept constant.
Optionally, the both sides of door frame all are equipped with waterproof infrared induction system, two infrared induction system is in same level, infrared induction system with adaptive controller and alarm device connect, move to along on the door plant during infrared induction system, infrared induction system gives adaptive controller with the signal transmission who senses, and adaptive controller is according to receiving two whether the edge is horizontal on the door plant, and the door plant whether produces the slope promptly, receives two when adaptive controller simultaneously during infrared induction system's signal, the door plant level explains the door plant slope when two signals are differentiated, alarm device connects adaptive controller can send alarm signal when the door plant slope. The alarm device can be installed together with the adaptive control system, and can also be independently arranged in a main control room which is convenient for technicians to control.
Optionally, an equivalent mode or a master-slave mode may be selected as required, where the "equivalent mode (fig. 3)" is to input operation parameters in the touch screen, the hydraulic cylinders (2a, 2b) controlled by the left and right electro-hydraulic servo solenoid valves (6a, 6b) track the ideal output set in the touch screen and are respectively controlled to achieve synchronous driving, and the "master-slave mode (fig. 4)" is to track the selected ideal output and achieve synchronous driving by the hydraulic cylinders (2a, 2b) controlled by the left and right electro-hydraulic servo solenoid valves (6a, 6 b). The same mode is also called a parallel mode, and the same control commands are respectively sent to the two controlled hydraulic oil cylinders according to the requirements, so that the two hydraulic oil cylinders can have output results consistent with the ideal results. The master-slave mode is that the output of one hydraulic oil cylinder is used as a reference input, and the other hydraulic oil cylinder operates according to a certain proportion according to the reference input, so that an ideal output effect is achieved.
The lower-opening weir gate of each embodiment of the invention has the advantages of high control precision, stable operation, convenient fault diagnosis and high intelligence degree.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The lower opening weir gate with the self-adaptive control system is characterized by comprising a door plate, a hydraulic oil cylinder and the self-adaptive control system, wherein the door plate can move up and down relative to a door frame; the first end of the hydraulic oil cylinder is connected with the door frame, and the second end of the hydraulic oil cylinder is connected with the door plate; the self-adaptive control system comprises a linear control device for controlling the door panel to move linearly, a first radar liquid level meter, a second radar liquid level meter and a control device; the first radar liquid level meter is arranged on the inner side of the door plate, the second radar liquid level meter is arranged on the outer side of the door plate, the first end of the linear control device is connected with the control end of the hydraulic oil cylinder, and the second end of the linear control device, the first radar liquid level meter and the second radar liquid level meter are connected with the control device.
2. The lower-opening weir according to claim 1, wherein the linear control device comprises a displacement sensor and an electro-hydraulic servo solenoid valve; the displacement sensor is arranged inside the hydraulic oil cylinder; the first end of the electro-hydraulic servo electromagnetic valve is connected with the control end of the hydraulic oil cylinder, and the second end of the electro-hydraulic servo electromagnetic valve and the displacement sensor are connected with the control device.
3. The lower-opening weir gate of claim 2, wherein the control means comprises a main controller and an adaptive controller; the first radar liquid level meter and the second radar liquid level meter are connected with the main controller; the signal receiving end of the electro-hydraulic servo electromagnetic valve and the displacement sensor are connected with the self-adaptive controller; and a communication connection is established between the main controller and the self-adaptive controller.
4. The lower-opening weir according to claim 3, wherein the main controller is configured to determine a weir opening target value and a target speed of the door panel based on the inside liquid level data and the outside liquid level data obtained from the first radar level gauge and the second radar level gauge, respectively;
the self-adaptive controller is used for obtaining an opening signal and a hydraulic oil quantity control signal according to the weir gate opening target value and the target speed, and sending the opening signal and the hydraulic oil quantity control signal to the electro-hydraulic servo electromagnetic valve, so that the electro-hydraulic servo electromagnetic valve controls the opening and the moving speed of the door panel according to the opening signal and the hydraulic oil quantity control signal.
5. The lower-opened weir gate of claim 4, wherein the adaptive controller is further configured to obtain a weir gate opening feedback value and a weir gate speed feedback value from the displacement sensor, perform PID control according to the weir gate opening feedback value, the weir gate speed feedback value, the weir gate opening target value and the target speed, and adjust the opening signal and the hydraulic oil flow control signal.
6. The lower open weir according to claim 5 wherein there are 2 hydraulic rams, 2 hydraulic rams being provided on each of the 2 sides of the door panel; each hydraulic oil cylinder is correspondingly connected with an electro-hydraulic servo electromagnetic valve.
7. The lower open weir gate of claim 6, wherein the adaptive controller is further configured to synchronously send the opening signal and the hydraulic oil flow control signal to 2 electro-hydraulic servo solenoid valves and synchronously adjust the opening signal and the hydraulic oil flow control signal.
8. The lower-opening weir according to claim 5, wherein the adaptive controller is further configured to perform fault detection based on the weir opening feedback value and the weir velocity feedback value.
9. The lower open weir according to claim 4, wherein the main controller is specifically configured to determine a weir opening target value and a target speed of the door panel during water storage based on the inside level data, the outside level data and preset water storage level data obtained from the first radar level gauge and the second radar level gauge, respectively; and/or the presence of a gas in the gas,
in each flushing process, when the inside liquid level data reaches preset flushing liquid level data, setting the opening target value of the weir gate as the maximum opening degree, and when the inside liquid level data reaches preset flushing time, setting the opening target value of the weir gate as closed; and/or the presence of a gas in the gas,
in the flood discharging process, when the inner side liquid level data reach preset flood discharging liquid level data and the outer side liquid level data belong to preset safe liquid level data, setting the opening target value of the weir gate as the maximum opening degree;
the self-adaptive controller is also used for adjusting the opening target value of the weir gate according to the preset water storage level so as to realize flow control.
10. The lower open weir gate of any one of claims 3 to 9, wherein the main controller is a PLC controller and the adaptive controller is a micro programmable controller.
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| CN202011112320.8A CN113293740A (en) | 2020-10-16 | 2020-10-16 | Lower open weir gate with self-adaptive control system |
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| CN202011112320.8A CN113293740A (en) | 2020-10-16 | 2020-10-16 | Lower open weir gate with self-adaptive control system |
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| CN104099997A (en) * | 2014-06-30 | 2014-10-15 | 武汉圣禹排水系统有限公司 | Hydraulic bottom-open-type weir gate |
| CN107632622A (en) * | 2017-10-27 | 2018-01-26 | 武汉圣禹排水系统有限公司 | A kind of reverse-filling sewage treatment well and reverse-filling control method |
| CN207570769U (en) * | 2017-10-27 | 2018-07-03 | 武汉圣禹排水系统有限公司 | Bottom-open type weir gate and sewage treatment well with fault detection system |
| CN208136859U (en) * | 2018-04-18 | 2018-11-23 | 中电建水环境治理技术有限公司 | The tidal anti-aqueous reflux control system in river |
| CN210368874U (en) * | 2019-07-19 | 2020-04-21 | 江苏迪萨机械有限公司 | Sluice gate |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099997A (en) * | 2014-06-30 | 2014-10-15 | 武汉圣禹排水系统有限公司 | Hydraulic bottom-open-type weir gate |
| CN107632622A (en) * | 2017-10-27 | 2018-01-26 | 武汉圣禹排水系统有限公司 | A kind of reverse-filling sewage treatment well and reverse-filling control method |
| CN207570769U (en) * | 2017-10-27 | 2018-07-03 | 武汉圣禹排水系统有限公司 | Bottom-open type weir gate and sewage treatment well with fault detection system |
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