CN111979987A - Lower-opening weir gate - Google Patents
Lower-opening weir gate Download PDFInfo
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- CN111979987A CN111979987A CN202010913225.1A CN202010913225A CN111979987A CN 111979987 A CN111979987 A CN 111979987A CN 202010913225 A CN202010913225 A CN 202010913225A CN 111979987 A CN111979987 A CN 111979987A
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- weir
- opening
- oil cylinder
- hydraulic oil
- liquid level
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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
- E02B7/28—Vertical-lift gates with sliding 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
- E02B7/36—Elevating mechanisms for vertical-lift gates
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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
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- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Barrages (AREA)
Abstract
The application relates to a lower-opening weir gate, which comprises a weir gate frame, a weir gate plate, a guide slide block, a hydraulic oil cylinder and a position sensor; the weir door frame is relatively provided with a door frame groove, a guide slide block is arranged in the door frame groove, two side edges of the weir door plate are arranged in the guide slide block, and the weir door plate can move up and down along the guide slide block; two sides of the weir door plate are respectively connected with a hydraulic oil cylinder, each hydraulic oil cylinder is correspondingly provided with a position sensor, and the position sensors are used for detecting displacement data of the corresponding hydraulic oil cylinders. This application is through weir door frame, weir door plant and the cooperation of leading the slider, can effectively reduce the wear rate of weir door plant, can detect hydraulic cylinder's lever displacement data through position sensor to can control the aperture of weir door plant, through the up-and-down motion of the hydraulic cylinder drive weir door plant of weir door plant both sides, can make weir door plant both sides resistance the same, avoid the weir door plant to incline in the motion process, avoid producing the jamming.
Description
Technical Field
The application relates to drainage engineering field especially relates to an open weir door down.
Background
The lower open weir gate is a common device in drainage engineering. The existing downward opening weir gate has the following defects: the position sensor is easy to be attached by dirt in water, particularly moss or plastic bags, when the position sensor is attached by the dirt, the detection capability is obviously reduced or even lost, and the dirt has damage effect on the position sensor, mainly corrodes, so that the maintenance cost of equipment is increased; the wear rate is increased in the process of up-and-down movement of the downward opening weir gate; damage can be caused to the gate plate in the mounting process of the weir gate plate or under some special conditions; the weir gate runner is circular arc or square hole shape, and it is inconvenient to make level when the civil engineering is pour, hardly lets pour the position and links up with the weir gate and must be close. Based on this, no effective solution is given in the prior art.
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.
The application provides a lower-opening weir gate, which comprises a weir gate frame, a weir gate plate, a guide slide block, a hydraulic oil cylinder and a position sensor; the weir door frame is relatively provided with a door frame groove, a guide slide block is arranged in the door frame groove, two side edges of the weir door plate are arranged in the guide slide block, and the weir door plate can move up and down along the guide slide block; two sides of the weir door plate are respectively connected with a hydraulic oil cylinder, each hydraulic oil cylinder is correspondingly provided with a position sensor, and the position sensors are used for detecting displacement data of the corresponding hydraulic oil cylinders.
Optionally, each position sensor is disposed within a cylinder rod of a corresponding hydraulic cylinder.
Optionally, a buffer device is arranged at the bottom of the weir gate plate.
Optionally, a rolling device is arranged in the guide sliding block, and the rolling device is attached to two side edges of the weir door plate.
Optionally, the rolling device is one of a stainless steel ball and a stainless steel roller.
Optionally, the lower-opened weir gate further comprises an embedded part, a sealing strip and a slag blocking plate for blocking floating objects; the weir door frame is formed into a hollow C-shaped cavity shape by connecting a plurality of frame bodies; the C-shaped cavity forms the doorframe groove; the embedded part is arranged at the upper end of the weir gate frame; a sealing strip is arranged between the weir door plate and the rolling device; the slag blocking plate is arranged between the hydraulic oil cylinder and the weir door plate and provided with a plurality of waist-shaped holes.
Optionally, the lower-opened weir gate further comprises a control device, a hydraulic servo controller and a liquid level meter; the hydraulic servo controller, the liquid level meter and the position sensor are all connected with the control device; the hydraulic servo controller is connected with the hydraulic oil cylinder through a hydraulic oil pipe; the hydraulic oil cylinder is arranged on the weir door frame through an oil cylinder mounting seat, and the oil cylinder mounting seat is provided with a mounting bridge and an oil cylinder seat cover.
Optionally, the control device is configured to determine a first target opening degree of the lower-opened weir gate according to the inside liquid level data and the outside liquid level data of the lower-opened weir gate obtained from the liquid level meter; generating a first opening instruction according to the current displacement data acquired from the position sensor and the first target opening, and sending the first opening instruction to the hydraulic servo controller; and the hydraulic servo controller controls the hydraulic oil cylinder according to the first opening instruction, so that the hydraulic oil cylinder drives the weir door plate to reach the first target opening according to the first opening instruction.
Optionally, when determining the first target opening degree, the control device is specifically configured to determine the first target opening degree as a maximum opening degree of the lower-opening weir gate when the inside liquid level data reaches preset flood-running liquid level data and the inside liquid level data is not less than the outside liquid level data; when the inner side liquid level data is not greater than preset flood-running liquid level data and the inner side liquid level data is not less than the outer side liquid level data, determining the first opening target according to preset constant water flow; and when the outside liquid level data is larger than the inside liquid level data, determining the first target opening degree as the minimum opening degree of the downward-opening weir gate.
Optionally, the control device is further configured to determine, when a flushing instruction is received, a second target opening degree of the lower-opened weir gate as a maximum opening degree of the lower-opened weir gate; generating a second opening instruction according to the current displacement data acquired from the position sensor and the maximum opening, and sending the second opening instruction to the hydraulic servo controller; the hydraulic servo controller controls the hydraulic oil cylinder according to the second opening instruction, so that the hydraulic oil cylinder drives the weir door plate to reach the maximum opening according to the second opening instruction to store liquid; determining a third target opening degree of the lower open weir gate as a preset flushing opening degree when the inner side liquid level data reaches preset flushing liquid level data; generating a third opening command according to the current displacement data acquired from the position sensor and the flushing opening, and sending the third opening command to the hydraulic servo controller; the hydraulic servo controller controls the hydraulic oil cylinder according to the third opening instruction, so that the hydraulic oil cylinder drives the weir door plate to reach the flushing opening according to the third opening instruction, and flushing is completed;
and each hydraulic oil cylinder is correspondingly provided with a hydraulic servo controller, and the control device synchronously sends the first opening instruction, the second opening instruction or the third opening instruction to each hydraulic servo controller.
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 under open weir door, through the weir door frame, the weir door plant and the cooperation of guide slide block, can effectively reduce the wear rate of weir door plant, can detect hydraulic cylinder's lever displacement data through position sensor, thereby can control the aperture of weir door plant, the up-and-down motion of hydraulic cylinder drive weir door plant through weir door plant both sides, can make under open weir door open or close the in-process, weir door plant both sides resistance is the same, avoid the weir door plant to incline in the motion process, unable dynamic adjustment, avoid producing the jamming.
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 view of a lower opening weir provided in various embodiments of the present application;
FIG. 2 is a schematic view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of the direction B-B of FIG. 1.
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 weir gate, which comprises a hydraulic oil cylinder 2, a guide slide block 4, a weir gate plate 8, a weir gate frame 9 and a position sensor, as shown in figures 1-3; the weir door frame 9 is relatively provided with a door frame groove, a guide slide block 4 is arranged in the door frame groove, two side edges of the weir door panel 8 are arranged in the guide slide block, and the weir door panel can move up and down along the guide slide block; two sides of the weir door plate are respectively connected with a hydraulic oil cylinder 2, each hydraulic oil cylinder is correspondingly provided with a position sensor, and the position sensors are used for detecting displacement data of the corresponding hydraulic oil cylinders.
According to the embodiment of the invention, through the matching of the weir door frame, the weir door plate and the guide slide block, the wear rate of the weir door plate can be effectively reduced, the displacement data of the lever of the hydraulic oil cylinder can be detected through the position sensor, so that the opening degree of the weir door plate can be controlled, the hydraulic oil cylinders on the two sides of the weir door plate drive the weir door plate to move up and down, the resistance on the two sides of the weir door plate can be the same when the downward opening weir door is opened or closed, the weir door plate is prevented from inclining in the moving process and cannot be dynamically adjusted, and the clamping stagnation is avoided.
The downward opening weir gate provided by the embodiment of the invention can be applied to closure regulation of urban underground pipe networks, sewage treatment plants and the like.
In some embodiments, each position sensor is disposed within a cylinder rod of a corresponding hydraulic ram.
According to the embodiment of the invention, on the basis of a common lower-opening weir gate, the installation position of the position sensor is improved, and the position sensor is installed in the hydraulic cylinder rod, so that not only can the displacement of the cylinder rod be detected in real time, but also the position sensor can be effectively protected, the service life of the position sensor is prolonged, and the maintenance cost is reduced. The problem that the position sensor is easily attached by dirt in water, particularly moss or a plastic bag, when the position sensor is attached by the dirt, the detection capability is obviously reduced, even the detection capability is lost, and the dirt can damage the sensor is effectively solved.
In some embodiments, the weir plate is provided with a buffer 5 at the bottom. Wherein, the equal fixed mounting in lower extreme both sides of weir door plant has buffer 5, and buffer 5 is cylindrical, plays the guard action to the weir door plant with dismantling or under the extreme condition in the installation.
In some embodiments, the guide block is provided with a rolling device 6, and the rolling device 6 is attached to two side edges of the weir gate plate. Optionally, the rolling device is one of a stainless steel ball and a stainless steel roller.
In detail, the rolling device 6 can be installed in the guide sliding block 4 by screws, the rolling device can roll by stainless steel balls and can also roll by replacing the stainless steel rollers according to requirements, the guide sliding block is installed in a C-shaped groove formed by a weir gate frame body, the weir gate plate 8 moves up and down in the weir gate frame 9, the motion resistance is reduced by the guide sliding block 4 and the rolling device, the motion of sliding only by the guide sliding block is changed into circular rolling motion by the balls or the rollers, the sliding friction is changed into rolling friction, the motion resistance is greatly reduced, the wear rate of the guide sliding block is reduced, and further the wear of the weir gate plate is reduced, and no friction noise exists.
In some embodiments, the lower-opened weir gate further comprises an embedded part 11, a sealing strip 7 and a slag trap 10 for intercepting floating objects; the weir door frame is formed into a hollow C-shaped cavity shape by connecting a plurality of frame bodies; the C-shaped cavity forms the doorframe groove; the embedded part is arranged at the upper end of the weir gate frame; a sealing strip 7 is arranged between the weir door plate and the rolling device; the slag blocking plate 10 is arranged between the hydraulic oil cylinder and the weir door plate, and a plurality of waist-shaped holes are formed in the slag blocking plate. Wherein, the weir door frame is formed by each framework combination, forms by bolted connection fastening between each framework, built-in fitting 11 is located the uppermost section of weir door frame, and pre-buried in the concrete when civil engineering construction, treat the concrete solidification, the top screw of built-in fitting 11 is used for locking the weir door frame. The slag blocking plate 10 is positioned on the side surfaces of the oil cylinder and the weir door plate and in the groove of the guide sliding block, and is provided with a plurality of waist-shaped holes, so that water accumulated under the door frame can be discharged in the descending process of the weir door plate, floaters in sewage are blocked when the sewage overflows at ordinary times, and the floaters are prevented from entering the weir door frame.
In some embodiments, the lower open weir further comprises a control device, a hydraulic servo controller, and a level gauge; the hydraulic servo controller, the liquid level meter and the position sensor are all connected with the control device; the hydraulic servo controller is connected with the hydraulic oil cylinder through a hydraulic oil pipe; the hydraulic oil cylinder is arranged on the weir door frame through an oil cylinder mounting seat, and the oil cylinder mounting seat is provided with a mounting bridge and an oil cylinder seat cover.
In some embodiments, the control device is configured to determine a first target opening degree of the lower-opened weir gate based on the inside liquid level data and the outside liquid level data of the lower-opened weir gate obtained from the liquid level meter; generating a first opening instruction according to the current displacement data acquired from the position sensor and the first target opening, and sending the first opening instruction to the hydraulic servo controller; and the hydraulic servo controller controls the hydraulic oil cylinder according to the first opening instruction, so that the hydraulic oil cylinder drives the weir door plate to reach the first target opening according to the first opening instruction.
In detail, the control device is arranged in a control cabinet, the control cabinet is connected with a hydraulic servo controller, the hydraulic servo controller is connected with a hydraulic oil cylinder through a hydraulic oil pipe, a hydraulic oil cylinder mounting seat is used for supporting the installation of the oil cylinder and is fastened through a screw and installed on a C-shaped groove at the top of a weir door frame, a bridge frame is installed on the left side and the right side of the weir door frame through screws after the oil cylinder mounting seat is installed, a bridge-shaped mechanism which can be trampled by an installer is formed, the oil cylinder seat covers the oil cylinder mounting seat, the left side and the right side are respectively provided with one oil cylinder seat, foreign garbage or rainwater is prevented from entering an oil cylinder system, the position sensor is positioned inside a cylinder rod of the left oil cylinder and the right oil cylinder, when displacement position signals of the left hydraulic oil cylinder and the right; the hydraulic servo controller and the programmable controller adopt an Ethernet communication protocol for data exchange; the human-computer interface and the programmable controller adopt an Ethernet communication protocol for data exchange; the hydraulic servo controller feeds data back to the programmable controller for data analysis and operation processing, transmits a weir gate opening instruction to the hydraulic servo controller, and finally drives the opening and closing of the weir gate oil cylinder through hydraulic power to realize closed-loop control of the weir gate; parameters and data of the control device are displayed, modified and set through a human-computer interface, and meanwhile, the control device is also provided with a video camera, so that the state of the equipment of the weir gate can be displayed and monitored in real time through the human-computer interface on the electro-hydraulic control cabinet.
Optionally, the control device is mainly composed of a micro programmable controller. The microcontroller can also carry out PID control according to the first target opening and the current displacement data to realize linear acceleration and deceleration control of the weir gate plate, so that the impact of the downward opening weir gate is reduced, and the service life is prolonged.
In some embodiments, the control device, when determining the first target opening degree, is specifically configured to determine the first target opening degree as a maximum opening degree of the lower-opening weir gate when the inside liquid level data reaches preset flood level data and the inside liquid level data is not less than the outside liquid level data; when the inner side liquid level data is not greater than preset flood-running liquid level data and the inner side liquid level data is not less than the outer side liquid level data, determining the first opening target according to preset constant water flow; and when the outside liquid level data is larger than the inside liquid level data, determining the first target opening degree as the minimum opening degree of the downward-opening weir gate.
Through the control, the flood-running function, the flow control function and the backflow prevention function can be realized. Wherein, the flow control is as follows: through the survey of level gauge to the water level, according to predetermined settlement, the weir gate board height stops and keeps invariable discharge in a certain position, when the underground pipe network discharge increases, detect the signal that the water level rose, transmit for controlling means, controlling means drive weir gate board risees, keep setting value discharge invariable, the underground pipe network discharge reduces, the level gauge detects the signal that the water level descends, transmit for controlling means, controlling means drive weir gate board descends and increases discharge until discharge reaches the setting value.
The backflow prevention process: when the water level of the external river is higher than the water level of the underground pipe network, the liquid level meter detects that signals are transmitted to the control device, the control device drives the weir door plate to ascend, external river water is intercepted outside the door plate and does not flow back into the underground pipe network system, and the function of preventing backflow is achieved.
Optionally, the control device is further configured to determine, when a flushing instruction is received, a second target opening degree of the lower-opened weir gate as a maximum opening degree of the lower-opened weir gate; generating a second opening instruction according to the current displacement data acquired from the position sensor and the maximum opening, and sending the second opening instruction to the hydraulic servo controller; the hydraulic servo controller controls the hydraulic oil cylinder according to the second opening instruction, so that the hydraulic oil cylinder drives the weir door plate to reach the maximum opening according to the second opening instruction to store liquid; determining a third target opening degree of the lower open weir gate as a preset flushing opening degree when the inner side liquid level data reaches preset flushing liquid level data; generating a third opening command according to the current displacement data acquired from the position sensor and the flushing opening, and sending the third opening command to the hydraulic servo controller; and the hydraulic servo controller controls the hydraulic oil cylinder according to the third opening instruction, so that the hydraulic oil cylinder drives the weir door plate to reach the flushing opening according to the third opening instruction, and the flushing function is completed.
That is to say, can select through operating panel and wash the function, the weir door plant can rise to the highest point and intercept underground pipe network water yield, and after the water yield deposit target in place, system drive weir door plant opens fast, and a large amount of retaining are flung to the runner under the potential energy is ordered about, play the washing effect.
Optionally, each hydraulic oil cylinder is correspondingly provided with a hydraulic servo controller, and the control device synchronously sends the first opening instruction, the second opening instruction or the third opening instruction to each hydraulic servo controller.
Synchronous precision control is realized through synchronous sending, and the operation stability is also guaranteed through synchronous precision control, effectively solved under open weir door actual work in-process, because weir door plant both sides resistance is different, lead to the weir door plant to produce the slope about producing in the motion process, and then produce the jamming, unable normal operating, through the control to the synchronous precision of weir door, carry out dynamic adjustment to the operation of weir door board, and then increase the stability of equipment operation.
One specific example is as follows.
In the embodiment, a weir gate frame 9 of a lower open type weir gate is processed into a certain shape by a sheet metal bending part and is fastened by bolts to form a hollow C-shaped cavity body, an embedded part 11 is installed on a module at the topmost part, concrete is poured in a foundation during civil engineering, an oil cylinder installation seat and a hydraulic oil cylinder 2 are installed at the top of the weir gate frame, a lower cylinder rod of the oil cylinder is installed on a shaft of the weir gate 8 to drive the weir gate 8 to move up and down, a bridge frame 12 is installed on the upper surface of the oil cylinder installation seat, an oil cylinder seat cover 1 is covered at the topmost part to prevent sewage from interfering the hydraulic oil cylinder, the weir gate 8 moves up and down in the weir gate frame 9, a guide slide block 4 is installed in the weir gate frame 9, a rolling device 6 is arranged on the guide block 4 to be attached to the weir gate 8, the sliding performance is increased in the movement process of the weir gate 8, the resistance is reduced, a slag blocking plate 10, separating the hydraulic oil cylinder from the weir gate plate; the guide sliding blocks 4 are locked on the weir door frame by nuts, and the rolling devices 6 are arranged on the guide sliding blocks through screws; sealing strip 7 is installed in the recess that the outside of leading slider 4 corresponds, and buffer can choose for use the blotter, and both sides about the weir door plant bottom are installed to the screw for the blotter, play the effect of buffering protection to the weir door plant when meetting the limit condition. And further realizes a flood discharge function, a flow control function, a backflow prevention function and a flushing function through a control device, a position sensor, a liquid level meter and a hydraulic servo controller.
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 type weir gate is characterized by comprising a weir gate frame, a weir gate plate, a guide sliding block, a hydraulic oil cylinder and a position sensor; the weir door frame is relatively provided with a door frame groove, a guide slide block is arranged in the door frame groove, two side edges of the weir door plate are arranged in the guide slide block, and the weir door plate can move up and down along the guide slide block; two sides of the weir door plate are respectively connected with a hydraulic oil cylinder, each hydraulic oil cylinder is correspondingly provided with a position sensor, and the position sensors are used for detecting displacement data of the corresponding hydraulic oil cylinders.
2. The lower open weir according to claim 1 wherein each position sensor is disposed within the stem of a corresponding hydraulic cylinder.
3. The lower open weir gate of claim 1 wherein the weir gate panel bottom is provided with a cushioning means.
4. The lower open weir gate of any one of claims 1 to 3 wherein the slide guide has rolling means disposed therein, the rolling means engaging both side edges of the weir gate panel.
5. The lower open weir according to claim 4 wherein the rolling means is one of stainless steel balls and stainless steel rollers.
6. The lower open weir according to claim 4, wherein the lower open weir further comprises embedments, sealing strips, and slag baffles for intercepting floaters; the weir door frame is formed into a hollow C-shaped cavity shape by connecting a plurality of frame bodies; the C-shaped cavity forms the doorframe groove; the embedded part is arranged at the upper end of the weir gate frame; a sealing strip is arranged between the weir door plate and the rolling device; the slag blocking plate is arranged between the hydraulic oil cylinder and the weir door plate and provided with a plurality of waist-shaped holes.
7. The lower open weir of claim 4 further comprising a control device, a hydraulic servo control and a level gauge; the hydraulic servo controller, the liquid level meter and the position sensor are all connected with the control device; the hydraulic servo controller is connected with the hydraulic oil cylinder through a hydraulic oil pipe; the hydraulic oil cylinder is arranged on the weir door frame through an oil cylinder mounting seat, and the oil cylinder mounting seat is provided with a mounting bridge and an oil cylinder seat cover.
8. The lower-opened weir according to claim 7, wherein the control means is configured to determine a first target opening of the lower-opened weir based on the inside and outside liquid level data of the lower-opened weir obtained from the liquid level gauge; generating a first opening instruction according to the current displacement data acquired from the position sensor and the first target opening, and sending the first opening instruction to the hydraulic servo controller; and the hydraulic servo controller controls the hydraulic oil cylinder according to the first opening instruction, so that the hydraulic oil cylinder drives the weir door plate to reach the first target opening according to the first opening instruction.
9. The lower-opening weir according to claim 8, wherein the control device, when determining the first target opening degree, is specifically configured to determine the first target opening degree as a maximum opening degree of the lower-opening weir when the inside liquid level data reaches a preset flood level data and the inside liquid level data is not less than the outside liquid level data; when the inner side liquid level data is not greater than preset flood-running liquid level data and the inner side liquid level data is not less than the outer side liquid level data, determining the first opening target according to preset constant water flow; and when the outside liquid level data is larger than the inside liquid level data, determining the first target opening degree as the minimum opening degree of the downward-opening weir gate.
10. The lower-opened weir of claim 8, wherein the control means is further configured to determine the second target opening of the lower-opened weir as a maximum opening of the lower-opened weir when a flush indication is received; generating a second opening instruction according to the current displacement data acquired from the position sensor and the maximum opening, and sending the second opening instruction to the hydraulic servo controller; the hydraulic servo controller controls the hydraulic oil cylinder according to the second opening instruction, so that the hydraulic oil cylinder drives the weir door plate to reach the maximum opening according to the second opening instruction to store liquid; determining a third target opening degree of the lower open weir gate as a preset flushing opening degree when the inner side liquid level data reaches preset flushing liquid level data; generating a third opening command according to the current displacement data acquired from the position sensor and the flushing opening, and sending the third opening command to the hydraulic servo controller; the hydraulic servo controller controls the hydraulic oil cylinder according to the third opening instruction, so that the hydraulic oil cylinder drives the weir door plate to reach the flushing opening according to the third opening instruction, and flushing is completed;
and each hydraulic oil cylinder is correspondingly provided with a hydraulic servo controller, and the control device synchronously sends the first opening instruction, the second opening instruction or the third opening instruction to each hydraulic servo controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010913225.1A CN111979987A (en) | 2020-09-03 | 2020-09-03 | Lower-opening weir gate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010913225.1A CN111979987A (en) | 2020-09-03 | 2020-09-03 | Lower-opening weir gate |
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| CN210368874U (en) * | 2019-07-19 | 2020-04-21 | 江苏迪萨机械有限公司 | Sluice gate |
| CN211395597U (en) * | 2019-10-28 | 2020-09-01 | 扬州蓝翔机电工程有限公司 | Hydraulically-controlled downward-opening weir gate |
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