CN113532589B - Water measuring system - Google Patents
Water measuring system Download PDFInfo
- Publication number
- CN113532589B CN113532589B CN202110886382.2A CN202110886382A CN113532589B CN 113532589 B CN113532589 B CN 113532589B CN 202110886382 A CN202110886382 A CN 202110886382A CN 113532589 B CN113532589 B CN 113532589B
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- Prior art keywords
- water
- thin
- weir
- wall weir
- channel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 213
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 39
- 239000013049 sediment Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 13
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 208000034699 Vitreous floaters Diseases 0.000 abstract 1
- 238000007667 floating Methods 0.000 description 10
- 230000002262 irrigation Effects 0.000 description 8
- 238000003973 irrigation Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/002—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow wherein the flow is in an open channel
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Measuring Volume Flow (AREA)
- Acoustics & Sound (AREA)
Abstract
The invention provides a water measuring system, which belongs to the technical field of water measuring, and comprises: the thin-wall weir is movably arranged on the flow monitoring section of the channel to be measured; the screw rod is connected with the thin-wall weir; the terminal controller is used for generating a detection control signal and a starting control signal when the water level is measured, and generating a closing control signal when the water measurement time is greater than or equal to the set sand washing time; the screw rod lifter is used for controlling the lifting of the screw rod according to the starting control signal or the closing control signal so as to drive the lifting of the thin-wall weir; the water measuring device is arranged at the position corresponding to the thin-wall weir on the flow monitoring section of the channel to be measured and is connected with the terminal controller, and is used for measuring the water level in the channel to be measured according to the detection control signal, and sending the water level in the channel to be measured to the terminal controller, so that the thin-wall weir is directly made to be liftable, the travelling of floaters in water flow is free from the blocking influence, and the accuracy of measuring the water level of the channel to be measured is improved.
Description
Technical Field
The present invention relates to the field of water measurement, and in particular, to a water measurement system.
Background
The water metering work of irrigation areas channels has important significance for saving water, reasonably irrigating and scientifically allocating water resources for an irrigation system, is very important for evaluating the water delivery loss and the field water efficiency of each level of channels of the irrigation system, can provide fair and reasonable basis for collecting water fees, and is also an important foundation for implementing informatization management of irrigation areas.
Along with the deep water price reform, accurate measurement of the water quantity of farmers to the ground becomes a key link of the water price reform, and the field investigation shows that the river water irrigation of a part of farmland irrigation system is realized, the flood period is 6 to 9 months each year, the sand content of the river water is large, the sediment accumulation is serious in front of the water measuring weir of the existing water measuring facility, and the measuring precision of the water level of the existing water measuring weir is greatly influenced.
Based on the above-mentioned problems, a new water measuring system is needed to improve the measuring accuracy of the water level.
Disclosure of Invention
The invention aims to provide a water measuring system which can improve the measuring precision of a water measuring facility on the water level in a channel to be measured.
In order to achieve the above object, the present invention provides the following solutions:
a water measurement system, the water measurement system comprising:
the thin-wall weir is movably arranged on the flow monitoring section of the channel to be measured;
the screw rod is connected with the thin-wall weir;
The terminal controller is used for generating a detection control signal and a starting control signal when the water level is measured, and generating a closing control signal when the water measurement time is greater than or equal to the set sand washing time;
The screw rod lifter is respectively connected with the screw rod and the terminal controller and is used for controlling the lifting of the screw rod according to the starting control signal or the closing control signal so as to drive the lifting of the thin-wall weir;
And the water measuring facility is arranged at the position corresponding to the thin-wall weir on the flow monitoring section of the channel to be measured, is connected with the terminal controller and is used for measuring the water level in the channel to be measured according to the detection control signal.
Optionally, the water measuring system further comprises:
the terminal controller and the screw rod lifter are arranged in the control cabinet;
the solar panel bracket is fixed on the control cabinet;
and the solar panel is fixed at the top of the solar panel bracket.
Optionally, the water metering facility comprises:
The cross rod bracket is fixed on the solar panel bracket and extends out to the upstream of the channel to be measured;
The radar liquid level gauge is arranged at the tail end of the cross rod support, is connected with the terminal controller and is used for measuring the water level in the channel to be measured according to the detection control signal.
Optionally, the water metering facility further comprises:
The camera is arranged on the cross bar support, connected with the terminal controller and used for acquiring the image of the thin-wall weir and sending the image to the terminal controller.
Optionally, the water measuring system further comprises: a first rail and a second rail embedded in two sides of a flow monitoring section of a channel to be tested;
the thin-wall weir is arranged between the first rail and the second rail, and the thin-wall weir moves up and down through the first rail and the second rail.
Optionally, the water measuring system further comprises:
the thin-wall weir frame upright rod is arranged at a position corresponding to the thin-wall weir in the channel to be measured;
The two sides of the thin-wall weir frame upright rod are respectively provided with a first vent hole and a second vent hole, and the first vent hole and the second vent hole are tangential to the thin-wall weir.
Optionally, the vertical distance between the first vent hole and the second vent hole and the top of the thin-wall weir is 5mm.
Optionally, the water measuring system further comprises:
The water sealing threshold is arranged at the bottom of the channel to be measured and corresponds to the thin-wall weir;
the bottom of the first water sealing plate is welded with the water sealing threshold, and the side surface of the first water sealing plate is welded with the first track;
and the bottom of the second water sealing plate is welded with the water sealing threshold, and the side surface of the second water sealing plate is welded with the second track.
Optionally, the water measuring system further comprises:
the motor is respectively connected with the terminal controller and the screw rod lifter;
The motor is connected with the screw rod lifter through a coupler.
Optionally, the water measuring system further comprises:
a thin wall weir frame upright rod welded with the thin wall weir; the thin-wall weir frame upright rod slides in the first track and the second track, so that the thin-wall weir is driven to open and close up and down.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: when the thin-wall weir is lifted or lowered through the screw rod, the terminal controller controls the screw rod to lift the thin-wall weir through the screw rod lifter, sediment deposited before the weir can be directly flushed to the downstream of the weir plate by water flow, when water is measured, the thin-wall weir is lowered, so that water flow in a channel completely passes through the weir top, and the water flow of the channel to be measured can be measured through a water measuring facility, thereby well solving the influence of sediment deposition on the measurement accuracy of the water level when water is measured. The thin-wall weir plate is lowered when water is measured, the research and development design scheme of lifting during sand washing can solve the blocking influence of the fixed thin-wall weir plate on the floating matters in the channel water, and the floating matters in the channel water can be washed to the downstream of the weir plate along with water flow when the thin-wall weir plate is lifted during sand washing, so that the workload that the water accuracy is measured because the floating matters are accumulated before the weir due to the fixed thin-wall weir plate blocking influence can be eliminated, and the floating matters need to be manually and timely removed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the whole structure of a water measuring system according to the present invention;
FIG. 2 is a schematic diagram showing the detailed construction of the water measuring system according to the present invention.
Symbol description:
The solar panel comprises a solar panel body-1, a solar panel support body-2, a cross bar support body-3, a radar level gauge-4, a camera-5, a control cabinet-6, a battery-7, a motor-8, a terminal controller-9, a screw rod lifter-10, a control cabinet mounting bottom plate-11, a coupler-12, a screw rod-13, a first upper frame vertical rod-14, a second upper frame vertical rod-15, a first rail-16, a second rail-17, a channel to be tested-18, a water sealing threshold-19, a thin wall weir-20, a lacing wire hanging plate-21, a motor controller-22,4G router-23, a first water sealing plate-24, a second water sealing plate-25, a wedge-shaped fastening plate-26, a travel switch-27, a thin wall weir frame cross rod-28 and a thin wall weir frame vertical rod-29.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a water measuring system, which is characterized in that a thin-wall weir is lifted or lowered by a screw rod, when water is not required to be measured, the thin-wall weir is lifted by the screw rod through a screw rod lifter, sediment deposited in front of the weir can be directly flushed to the downstream of a weir plate by water flow, when the water is measured, the thin-wall weir is lowered, so that the water flow in a channel can be measured by a water measuring facility, and the influence of sediment deposition on the measuring accuracy of the water level when the water is measured can be well solved. Meanwhile, the problem that the water measurement accuracy is affected by accumulation of floating objects in the water of the channel due to blocking of the thin-wall weir can be solved. The research and development design scheme that the thin-wall weir plate in channel water is lowered when water is measured and lifted during sand washing can solve the blocking influence of the fixed thin-wall weir plate on floating matters in channel water, and the floating matters in channel water of the thin-wall weir plate can be lifted to the downstream of the weir plate along with water flow during sand washing, so that the workload that the floating matters need to be manually cleaned in time because the floating matters are accumulated before the weir due to the fixed thin-wall weir plate blocking influence on water accuracy can be eliminated.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the water measuring system of the present invention includes: thin wall weir 20, lead screw 13, terminal controller 9, lead screw elevator 10 and water metering facility.
Specifically, the thin-walled weir 20 is movably disposed on the flow monitoring section of the channel 18 to be measured. Preferably, the thin walled weir 20 is a rectangular thin walled weir.
The screw 13 is connected with the thin-walled weir 20. Specifically, the lower end of the screw 13 is connected to a frame rail of the thin wall weir 20.
The terminal controller 9 is used for generating a detection control signal and a starting control signal when the water level is measured, and generating a closing control signal when the water measurement time is greater than or equal to the set sand washing time.
The screw rod lifter 10 is respectively connected with the screw rod 13 and the terminal controller 9, and the screw rod lifter 10 is used for controlling lifting of the screw rod 13 according to the starting control signal or the closing control signal so as to drive the thin-wall weir 20 to lift. The thin-wall weir 20 is driven to integrally lift by the screw rod lifter 10, sediment carried in channel water flow is carried to the downstream of the water measuring facility by the rapid flow, and the water measuring section of the water measuring facility can not be deposited during daily water passing, so that the accuracy of measuring the water level is improved.
The water measuring facility is arranged at a position corresponding to the thin-wall weir 20 on the flow monitoring section of the channel 18 to be measured and is connected with the terminal controller 9, and is used for measuring the water level in the channel 18 to be measured according to the detection control signal.
The thin-wall weir 20 is directly made to be liftable without adding other sand washing components, so that the structure is simpler, and the floating objects in the water flow are not affected by the blockage.
Further, the water measuring system further comprises: control cabinet 6, solar panel support 2 and solar panel 1.
The terminal controller 9 and the screw rod lifter 10 are both arranged in the control cabinet 6;
the solar panel bracket 2 is fixed on the control cabinet 6.
The solar panel 1 is fixed on top of the solar panel bracket 2.
Optionally, the water measuring system further comprises a control cabinet mounting base plate 11. The control cabinet mounting base plate 11 is connected with a first upper frame upright 14 and a second upper frame upright 15. The two frames play a supporting role.
Optionally, the water measuring system further comprises a battery 7. The battery 7 is respectively connected with the solar panel 1, the terminal controller 9, the screw rod lifter 10 and the water measuring facility. The battery 7 supplies power to the entire system. A battery 7 is provided in the control cabinet 6.
Specifically, the water metering facility includes: a rail support 3 and a radar level gauge 4.
The cross bar support 3 is fixed on the solar panel support 2 and extends out to the upstream of the channel 18 to be measured.
The radar level gauge 4 is arranged at the tail end of the cross bar bracket 3 and is connected with the terminal controller 9, and the radar level gauge 4 is used for measuring the water level in the channel 18 to be measured according to the detection control signal. The radar level gauge 4 can accurately measure the water level of the channel to be measured in front of the water measuring device.
Further, the water metering facility also comprises a camera 5. The camera 5 is arranged on the cross bar support 3 and connected with the terminal controller 9, and the camera 5 is used for acquiring the image of the thin-wall weir 20 and sending the image to the terminal controller 9.
Optionally, the water measurement system further comprises a cloud platform. The terminal controller 9 is connected with the cloud platform, and the terminal controller 9 is also used for sending the image to the cloud platform. The cloud deck is used for analyzing the image of the thin-walled weir 20, detecting the operation state of the thin-walled weir 20, and generating fault information when the thin-walled weir 20, the screw 13 or the screw elevator 10 fails. Timely reminding management personnel of faults.
In addition, the radar level gauge 4 is also used for sending the water level to the terminal controller 9 or the cloud platform. The cloud platform is also used for calculating corresponding water flow according to the water level.
Still further, the water measuring system further comprises: a first rail 16 and a second rail 17 embedded on both sides of the flow monitoring section of the channel 18 to be measured.
The thin-walled weir 20 is disposed between the first and second rails 16 and 17, and the thin-walled weir 20 moves up and down through the first and second rails 16 and 17. In this embodiment, the thin wall weir 20 is inlaid in the first rail 16 and the second rail 17. The first track 16 and the second track 17 are used for restraining the thin-wall weir 20 from opening and closing up and down, and are tightly matched with the thin-wall weir 20 to play a role in sealing water.
As shown in fig. 2, the measuring water system further includes a thin wall weir frame upright 29 for making the water tongue formed when the water flows over the thin wall weir 20 weir roof clearer. The thin wall weir frame upright 29 is disposed in the channel 18 to be measured at a location corresponding to the thin wall weir 20.
The two sides of the thin wall weir frame upright 29 are respectively provided with a first vent hole and a second vent hole, and the first vent hole and the second vent hole are tangential to the thin wall weir 20. Preferably, the first vent hole and the second vent hole are each 5mm from the top of the thin wall weir 20. The vent is used to communicate with atmospheric pressure between the thin walled weir 20 and the water flow as it passes over the top of the thin walled weir 20 so that a clear water tongue is formed as the water flows over the thin walled weir 20 weir roof.
The thin wall weir frame leg 29 is welded to the thin wall weir 20. The thin-wall weir frame upright 29 slides in the first track 16 and the second track 17 so as to drive the thin-wall weir 20 to open and close up and down. The vertical rods on two sides of the thin-wall weir frame slide in the first track 16 and the second track 17, so that interference on the flow state of water in the channel can be avoided, and the effective cross-sectional area for water to pass through is prevented from being reduced.
The two ends of the thin wall weir frame cross bar 28 are welded with the thin wall weir frame upright 29, and the middle is connected with the screw rod 13.
In order to improve the water sealing effect, the water measuring system further comprises a water sealing threshold 19. The water sealing threshold 19 is arranged at the bottom of the channel 18 to be measured and corresponds to the thin-wall weir 20. The water-sealing threshold 19 is connected to the first track 16 and the second track 17. The lower end face of the water sealing threshold 19 is closely contacted with the bottom of the channel 18 to be measured. If the thin-wall weir 20 falls completely and is level with the bottom of the channel 18 to be measured, the sand and stone at the bottom of the channel 18 to be measured can form gaps between the thin-wall weir 20 and the bottom of the channel 18 to be measured, so that the sealing effect is not tight, and through actual operation observation, the thin-wall weir 20 falls to the upper surface of the sealing sill 19 during operation, so that a good sealing effect can be achieved.
Optionally, the water measuring system further comprises a motor 8. The motor 8 is respectively connected with the terminal controller 9 and the screw rod lifter 10. The motor 8 is connected with the screw rod lifter 10 through a coupling 12. The transverse shaft of the screw lifter 10 is connected with the coupling 12. The coupling 12 is used for transmitting the power of the motor 8 to the screw lifter 10.
Further, the water measuring system further comprises a lacing wire hanging plate 21. The lacing wire hanging plate 21 is welded on the outer sides of the first rail 16 and the second rail 17. The lacing wire link plate 21 is used for hanging reinforcing steel bars, and plays a role in fixing the whole structure.
The water metering system also includes a motor controller 22. The motor controller 22 is connected with the terminal controller 9 and the motor 8 respectively. The motor controller 22 is used for driving the motor 8 to operate.
The water measurement system further comprises a 4G router 23. The 4G router 23 is connected to the terminal controller 9 and the camera 5, respectively, and the 4G router 23 is configured to provide communication services for the terminal controller 9 and the camera 5.
To further avoid leakage, the measuring water system further comprises a first water sealing plate 24 and a second water sealing plate 25. The bottoms of the first water sealing plate 24 and the second water sealing plate 25 are welded with the water sealing threshold 19, and the side surfaces are welded with the first rail 16 and the second rail 17. When the thin-wall weir 20 is closed along the first track 16 and the second track 17, the outer wall of the thin-wall weir 20 is tightly combined with the inner walls of the first water sealing plate 24 and the second water sealing plate 25 to play a role in sealing water.
The water measuring system further comprises a wedge-shaped fastening plate 26. In this embodiment, the number of the wedge-shaped fastening plates 26 is two, and the bottoms of the two wedge-shaped fastening plates are each 90mm from the water sealing threshold. The inner walls of the two wedge-shaped fastening plates are spaced apart from the inner walls of the first and second water sealing plates 24, 25 by 8.1mm, respectively. When the thin-walled weir starts to close, the thin-walled weir slides along the space formed between the first and second water sealing plates 24, 25 and the two wedge-shaped fastening plates, which act as guides and tightens in the process.
The control flow of the water measuring system comprises the following steps:
The cloud platform establishes communication with the terminal controller 9 through the 4G network, an operation instruction is sent to the terminal controller 9, the terminal controller 9 controls the opening and closing of the thin-wall weir 20 through the control motor 8 according to the operation instruction, and meanwhile, the opening and closing state of the thin-wall weir 20 and the water level information acquired by the radar level gauge 4 can be forwarded to the cloud platform through the terminal controller 9. And the cloud platform calculates the instantaneous flow and the accumulated water quantity of the channel to be measured according to the water engineering building and weir groove flow measurement standard and the water level.
The water measuring time and the sand washing time are set on a cloud platform in advance, the cloud platform judges whether the water measuring time and the sand washing time are reached, when the water measuring time is reached, an instruction for measuring the water level is sent to a terminal controller 9, the terminal controller 9 generates a closing control signal to control a motor 8 to act, the motor 8 controls a screw rod 13 of a screw rod lifter 10 to rotate downwards through a coupling 12, the screw rod 13 is connected with a thin-wall weir 20, when the screw rod 13 rotates downwards, the thin-wall weir 20 is driven to close downwards, and when the thin-wall weir 20 is closed to the upper end face of a water sealing weir 19 to stop, water is measured. When the set sand washing time is reached, a command for stopping measurement is sent to the terminal controller 9, the terminal controller 9 generates a start control signal to control the motor 8 to act, the motor 8 controls the screw rod 13 of the screw rod lifter 10 to rotate upwards through the coupler 12, the screw rod 13 is connected with the thin-wall weir 20, when the screw rod 13 rotates upwards, the thin-wall weir 20 is driven to open upwards, and when the thin-wall weir 20 is opened to the set height of the system, the sand washing is stopped, and sand washing is performed.
In addition, the water measuring system of the invention further comprises a travel switch 27. Corresponding instructions can also be generated directly to the terminal controller via the travel switch 27 to control the operation of the thin wall weir and water metering facility.
In measuring water, the thin-walled weir 20 is lowered for a certain period of time, and the radar level gauge 4 measures the water level of the measured water section upstream of the thin-walled weir 20 at intervals of seconds.
In addition, the invention can also adjust the bottom slope of the channel 18 to be measured in the standard section advancing section to a steep slope, adjust the flow state of the water to be a rapid flow, and increase the flow velocity of the water. After the system automatically descends the thin-wall weir 20 to measure the water flow of the standard section advancing section for a certain period of time, the thin-wall weir 20 is lifted, the bottom slope of the standard section advancing section is adjusted to be a steep slope, and the formed rapid flow is formed by flushing all silt deposited by the thin-wall weir 20 to the downstream, so that the influence on the accuracy of system flow measurement due to silt deposition in front of the thin-wall weir 20 is avoided.
The whole process can be repeatedly carried out in irrigation areas, and the thin-wall weir 20 can be lowered at any time to measure flow or lifted at any time to wash sand according to the requirement.
The water measuring system of the invention can adopt different water measuring facilities according to different channels, and water is measured by different types of thin-wall weirs and water sealing sills with corresponding specifications. In order to prevent the problem that sediment accumulation influences the water measuring precision before the water measuring facility, a solution is provided that a thin-wall weir of the water measuring facility can be lifted, the system intelligently reads the water level of the water measuring section of the thin-wall weir through water level measuring equipment such as a radar or ultrasonic wave by an informationized intelligent remote control technology, and then the system intelligently calculates the corresponding water flow. By combining the intelligent water measuring system, the adjustment of the bottom slope of the water measuring standard running section, the lifting of the water measuring facility and other methods, the intelligent and accurate water distribution quantity of the irrigation area can be measured without leakage.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is intended that those skilled in the art, upon attaining an understanding of the teachings of the present invention, may vary from implementation to implementation and from application to application and be within the scope of the present invention. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (10)
1. A water measurement system, the water measurement system comprising:
The thin-wall weir is movably arranged on the flow monitoring section of the channel to be measured; the channel to be measured is provided with a standard section advancing section, and the bottom slope of the standard section advancing section is adjusted to be a steep slope;
the screw rod is connected with the thin-wall weir;
the terminal controller is used for generating a detection control signal and a starting control signal when measuring the water level, descending the thin-wall weir, enabling water flow to pass through the weir crest completely, generating a closing control signal when the water measurement time is greater than or equal to the set sand flushing time, lifting the thin-wall weir, and flushing sediment deposited in front of the weir to the downstream of the weir plate by the water flow;
The screw rod lifter is respectively connected with the screw rod and the terminal controller and is used for controlling the lifting of the screw rod according to the starting control signal or the closing control signal so as to drive the lifting of the thin-wall weir;
And the water measuring facility is arranged at the position corresponding to the thin-wall weir on the flow monitoring section of the channel to be measured, is connected with the terminal controller and is used for measuring the water level in the channel to be measured according to the detection control signal.
2. The water measuring system according to claim 1, the water measuring system is characterized by further comprising:
the terminal controller and the screw rod lifter are arranged in the control cabinet;
the solar panel bracket is fixed on the control cabinet;
and the solar panel is fixed at the top of the solar panel bracket.
3. The water measurement system of claim 2, wherein the water measurement facility comprises:
The cross rod bracket is fixed on the solar panel bracket and extends out to the upstream of the channel to be measured;
The radar liquid level gauge is arranged at the tail end of the cross rod support, is connected with the terminal controller and is used for measuring the water level in the channel to be measured according to the detection control signal.
4. The water metering system of claim 3 wherein said water metering facility further comprises:
The camera is arranged on the cross bar support, connected with the terminal controller and used for acquiring the image of the thin-wall weir and sending the image to the terminal controller.
5. The water measuring system according to claim 1, the water measuring system is characterized by further comprising: a first rail and a second rail embedded in two sides of a flow monitoring section of a channel to be tested;
the thin-wall weir is arranged between the first rail and the second rail, and the thin-wall weir moves up and down through the first rail and the second rail.
6. The water measuring system according to claim 1, the water measuring system is characterized by further comprising:
the thin-wall weir frame upright rod is arranged at a position corresponding to the thin-wall weir in the channel to be measured;
The two sides of the thin-wall weir frame upright rod are respectively provided with a first vent hole and a second vent hole, and the first vent hole and the second vent hole are tangential to the thin-wall weir.
7. The water measurement system of claim 6, wherein the first vent hole and the second vent hole are each 5mm from the top of the thin wall weir.
8. The water measuring system according to claim 5, the water measuring system is characterized by further comprising:
The water sealing threshold is arranged at the bottom of the channel to be measured and corresponds to the thin-wall weir;
the bottom of the first water sealing plate is welded with the water sealing threshold, and the side surface of the first water sealing plate is welded with the first track;
and the bottom of the second water sealing plate is welded with the water sealing threshold, and the side surface of the second water sealing plate is welded with the second track.
9. The water measuring system according to claim 1, the water measuring system is characterized by further comprising:
the motor is respectively connected with the terminal controller and the screw rod lifter;
The motor is connected with the screw rod lifter through a coupler.
10. The water measuring system according to claim 5, the water measuring system is characterized by further comprising:
a thin wall weir frame upright rod welded with the thin wall weir; the thin-wall weir frame upright rod slides in the first track and the second track, so that the thin-wall weir is driven to open and close up and down; both ends of thin wall weir frame cross bar is welded with the vertical rod of the thin-wall weir frame, the middle is connected with the screw rod.
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| IT202200009296A1 (en) * | 2022-05-06 | 2023-11-06 | Carlo Marelli | Portable support device for water level/flow measurement instruments on irrigation bulkhead nozzles |
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