CN111780819A - Gate slot integrated flow measurement and control device - Google Patents
Gate slot integrated flow measurement and control device Download PDFInfo
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- CN111780819A CN111780819A CN202010549783.4A CN202010549783A CN111780819A CN 111780819 A CN111780819 A CN 111780819A CN 202010549783 A CN202010549783 A CN 202010549783A CN 111780819 A CN111780819 A CN 111780819A
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- gate
- wing
- water level
- level sensor
- channel
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- 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
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
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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
- 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
- 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
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Thermal Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Volume Flow (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention provides a gate-tank integrated flow measurement and control device, which solves the problems of water resource waste, low measurement precision of a water measuring tank, high head loss and incapability of automatically opening or closing a gate on time according to quantity for irrigation; the ultrasonic water level sensor is connected with the channel through the fixed support and is positioned right above the channel; a left bank wing and a right bank wing are respectively arranged on two inner side walls of a channel at the downstream of the ultrasonic water level sensor, a gate slot is arranged between the positions with the maximum wing thickness, door frames are arranged above the channels at two sides of the gate slot, two winches are arranged above the two door frames, a rotating shaft is rotatably connected between the two winches, a steel cable is wound and connected on the rotating shaft, and one end of the steel cable which hangs down is connected with a gate matched with the gate slot; the invention has simple structure, can integrate automatic measurement of water level and flow, can realize the opening and closing of the gate, and greatly improves the water resource management efficiency of the irrigation district.
Description
Technical Field
The invention relates to the technical field of automatic measurement and control of channel flow, in particular to a gate-slot integrated flow measurement and control device.
Background
The situation of water resources in China is very severe, and the problems of water resource shortage, serious water pollution, deterioration of water ecological environment and the like are increasingly prominent. Water resource management is regulation and control of requirements and configuration in all aspects in water resource development and utilization, is a key for realizing sustainable utilization of water resources, and in the agricultural production process, implementation of scientific water resource management must depend on accurate measurement of water level and water quantity data, and water in irrigation areas is an effective means for providing the data. Moreover, the water charge of the irrigation areas in China is basically based on the area rather than the square, so that the water conservation awareness of vast consumers is poor, and a large amount of water resources are wasted. With the increasing shortage of water resources and the establishment of water markets, planned water use and fee per party are important contents for water charge reformation of irrigation areas, and water is a precondition for realizing the reformation.
From the aspects of economy, practicality, stability and reliability, the tank type water measuring structure has the advantages of accurate measurement, difficult siltation, low manufacturing cost, easy maintenance and the like, so the tank type water measuring structure is more suitable for popularization and application in vast irrigation areas of China. The invention provides a gate-tank integrated flow measurement and control device, aiming at solving the problems that the existing water measuring tank cannot simultaneously meet the requirements of high measurement precision, low head loss, low water accumulation height and incapability of automatically opening or closing irrigation water on time according to quantity, and the application of the water measuring tank and the measurement and management of water used in an irrigation area and urban drainage are limited to a certain extent.
Disclosure of Invention
The invention provides a gate-tank integrated flow measurement and control device, which solves the problems of water resource waste, low measurement precision of a water measuring tank, high head loss and incapability of automatically opening or closing a gate on time according to quantity for irrigation.
The technical scheme of the invention is realized as follows:
a gate-tank integrated flow measurement and control device comprises an ultrasonic water level sensor, wherein the ultrasonic water level sensor is connected with a channel through a fixed support and is positioned right above the channel; the gate structure is characterized in that a left bank wing and a right bank wing are respectively arranged on two inner side walls of a channel at the downstream of the ultrasonic water level sensor, a gate slot is arranged between the maximum wing thickness positions of the left bank wing and the right bank wing, a door frame is arranged above the channel at two sides of the gate slot, two winches are arranged above the two door frames, a rotating shaft is rotatably connected between the two winches, a steel cable is wound and connected onto the rotating shaft, and one end, which is hung down, of the steel cable is connected with a gate matched with the gate slot.
Furthermore, the ultrasonic water level sensor and the winch are remotely controlled by GPRS.
Further, the left bank wing and the right bank wing are controlled by an optimized wing equation, and the formula is as follows:
in the formula, X is an abscissa, Y is an ordinate, P is the maximum value of the thickness of the wing surface of the optimized wing, and C is the wing length in m.
Further, the flow calculation formula of the ultrasonic water level sensor is as follows:
Q＝0.68560.8738h1.6262
wherein Q is the flow rate; optimizing the ratio of the maximum thickness of the wing surface of the wing to the channel width for the contraction ratio; h is the water depth 0.5m upstream.
Furthermore, a lifting lug is connected right above the gate, and the steel cable is connected with the gate through the lifting lug.
Further, the ultrasonic water level sensor is arranged at the upstream 0.5m of the left bank wing and the right bank wing.
The beneficial effect that this technical scheme can produce:
the invention has simple structure, can integrate automatic measurement of water level and flow, can realize the opening and closing of the gate, greatly improves the water resource management efficiency of the irrigation district, provides a solution for the automation, the intellectualization and the standardization of irrigation of the irrigation district, and realizes the optimal configuration and the management of water resources; the GPRS remote control is more convenient; the optimized equation is adopted for control, so that the measurement precision is high, the head loss is small, the backwater height is low, and siltation is not easy to generate; the lifting lugs can enable the gate to be stressed better and control the opening and closing of the gate better; ultrasonic water level sensor installs the upper reaches 0.5m department at left bank wing and right bank wing, can make to measure more accurately.
Drawings
FIG. 1 is a front view of a gate-slot integrated flow measurement and control device of the present invention;
FIG. 2 is a top view of a gate-slot integrated flow measurement and control device according to the present invention;
FIG. 3 is a sectional view of the section of FIG. 21-1;
fig. 4 is an optimized wing curve.
Wherein: 1-a winch; 2-a door frame; 3-ultrasonic water level sensor; 4-a gate; 5-channel; 6-fixing a bracket; 7-a rotating shaft; 8-left bank wing; 9-right bank wing; 10-a wire rope; 11-a lifting lug; 12-gate slot.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is described below by way of specific embodiments.
Example 1
A gate-tank integrated flow measurement and control device comprises an ultrasonic water level sensor 3, wherein the ultrasonic water level sensor 3 is connected with a channel 5 through a fixed support 6 and is positioned right above the channel 5; the two inner side walls of a channel 5 at the downstream of the ultrasonic water level sensor 3 are respectively provided with a left bank wing 8 and a right bank wing 9, a gate slot 12 is arranged between the maximum wing thicknesses of the left bank wing 8 and the right bank wing 9, door frames 2 are arranged above the channels 5 at the two sides of the gate slot 12, two winches 1 are arranged above the two door frames 2, a rotating shaft 7 is rotatably connected between the two winches 1, a steel cable 10 is wound and connected on the rotating shaft 7, and one end of the steel cable 10 which hangs down is connected with a gate 4 matched with the gate slot 12.
The using process of the invention is as follows: rivers flow through from the channel 5 in, the top of channel 5 is provided with ultrasonic wave level sensor 3, can measure the water level of rivers and calculate discharge according to the water level when rivers are outdated, and when the water level and the flow that overflow reach predetermined volume, hoist engine 1 will lose the fixed of countershaft 7, gate 4 falls into gate slot 12 completely downwards because of self gravity, block rivers through the realization to the control of rivers, hoist engine 1 begins to move when needing to open rivers again and irrigate and drives pivot 7 and rotate, and pivot 7 rotates and will drive steel cable 10 upwards winding, because steel cable 10 links to each other with gate 4, gate 4 also can upwards remove the after-fixing and make rivers normally pass through the channel.
The water level is accurately measured by the ultrasonic water level sensor 3, the flow of the overflow tank is directly calculated according to a water level flow formula, and the gate 4 is arranged, so that the flow switch can be controlled more conveniently, the real-time accurate measurement of the flow and the function of discharging water according to the amount can be realized, and the popularization value and the application prospect are higher; the invention has simple structure, can integrate automatic measurement of water level and flow, can realize the opening and closing of the gate 4, greatly improves the water resource management efficiency of irrigation areas, and provides a solution for the automation, the intellectualization and the standardization of irrigation areas.
Example 2
Preferably, the ultrasonic water level sensor 3 and the winch 1 are remotely controlled by GPRS.
The ultrasonic water level sensor 3 and the winch 1 are remotely controlled by GPRS, and receive commands and execute through a GPRS remote control panel, and can also transmit data of the ultrasonic water level sensor 3 to a terminal through GPRS, when the ultrasonic water level sensor 3 displays that the water passing amount reaches a preset amount and the gate 4 needs to be closed or the gate 4 needs to be opened again for water discharge, a control instruction can be sent to the winch 1 through the GPRS remote control panel to open or close; the gate 4 is opened and closed more conveniently.
Other structures of this embodiment are the same as those of embodiment 1.
Example 3
Preferably, the left bank wing 8 and the right bank wing 9 are controlled by an optimized wing equation, and the formula is as follows:
in the formula, X is an abscissa, Y is an ordinate, P is the maximum value of the thickness of the wing surface of the optimized wing, and C is the wing length in m.
The wing equation after optimization has the characteristics of high measurement precision, small head loss, low backwater height and difficult siltation.
Other structures of this embodiment are the same as those of embodiment 1.
Example 4
Preferably, the flow calculation formula of the ultrasonic water level sensor 3 is as follows:
Q＝0.68560.8738h1.6262
wherein Q is the flow rate; optimizing the ratio of the maximum thickness of the wing surface of the wing to the channel width for the contraction ratio; h is the water depth 0.5m upstream.
When water flows through the left bank wing 8 and the right bank wing 9, flow state change is generated, the relation between the stable water level and the flow of the channel 5 is established, so that the water flow of the channel is determined, and the channel passing flow of the water can be calculated through the formula.
Other structures of this embodiment are the same as those of embodiment 1.
Example 5
Preferably, a lifting lug 11 is connected right above the gate 4, and the wire rope 10 is connected with the gate 4 through the lifting lug 11.
The steel cable 10 is connected with the gate 4 through the lifting lug 11, so that the gate 4 can be stressed better, the opening and closing of the gate 4 can be controlled better, and the stability of the equipment is enhanced.
Other structures of this embodiment are the same as those of embodiment 1.
Example 6
Preferably, the ultrasonic water level sensor 3 is installed at 0.5m upstream of the left bank wing 8 and the right bank wing 9.
If the ultrasonic water level sensor 3 is arranged at the upstream of the left bank wing 8 and the right bank wing 9 and is less than 0.5m, the measured water level cannot represent the actual water level because the water flow is not stable due to the change of the channel section surface; if the water flow is more than 0.5m, the water flow is more rapid, and the water depth is shallower and can not meet the measurement standard; in addition, according to the technical scheme, the water level fluctuation at the position 0.5m in front of the tank is the minimum according to model tests, flow calculation formulas are derived according to the water depth at the position 0.5m in front of the tank, and measurement and calculation are inaccurate due to too large or too small distance.
Other structures of this embodiment are the same as those of embodiment 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a flow measurement and control device of floodgate groove integration, includes ultrasonic wave level sensor (3), its characterized in that: the ultrasonic water level sensor (3) is connected with the channel (5) through a fixed support (6) and is positioned right above the channel (5); the gate structure is characterized in that a left bank wing (8) and a right bank wing (9) are respectively arranged on two inner side walls of a channel (5) at the downstream of an ultrasonic water level sensor (3), a gate slot (12) is arranged between the maximum wing thickness positions of the left bank wing (8) and the right bank wing (9), a door frame (2) is arranged above the channel (5) at two sides of the gate slot (12), two winches (1) are arranged above the two door frames (2), a rotating shaft (7) is rotatably connected between the two winches (1), a steel cable (10) is wound on the rotating shaft (7), and one end, hanging down, of the steel cable (10) is connected with a gate (4) matched with the gate slot (12).
2. The gate-slot integrated flow measurement and control device of claim 1, wherein: the ultrasonic water level sensor (3) and the winch (1) are remotely controlled by GPRS.
3. The gate-slot integrated flow measurement and control device of claim 1, wherein: the left bank wing (8) and the right bank wing (9) are controlled by an optimized wing equation, and the formula is as follows:
in the formula, X is an abscissa, Y is an ordinate, P is the maximum value of the thickness of the wing surface of the optimized wing, and C is the wing length in m.
4. The gate-slot integrated flow measurement and control device of claim 1, wherein: the flow calculation formula of the ultrasonic water level sensor (3) is as follows:
Q＝0.68560.8738h1.6262
wherein Q is the flow rate; optimizing the ratio of the maximum thickness of the wing surface of the wing to the channel width for the contraction ratio; h is the water depth 0.5m upstream.
5. The gate-slot integrated flow measurement and control device of claim 1, wherein: a lifting lug (11) is connected right above the gate (4), and a steel cable (10) is connected with the gate (4) through the lifting lug (11).
6. The gate-slot integrated flow measurement and control device of claim 1, wherein: the ultrasonic water level sensor (3) is arranged at the upstream 0.5m of the left bank wing (8) and the right bank wing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010549783.4A CN111780819A (en) | 2020-06-16 | 2020-06-16 | Gate slot integrated flow measurement and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010549783.4A CN111780819A (en) | 2020-06-16 | 2020-06-16 | Gate slot integrated flow measurement and control device |
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| Publication Number | Publication Date |
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| CN111780819A true CN111780819A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010549783.4A Pending CN111780819A (en) | 2020-06-16 | 2020-06-16 | Gate slot integrated flow measurement and control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006004A (en) * | 2021-03-19 | 2021-06-22 | 吉林省佰强科技有限责任公司 | Novel water channel with automatic gate and water channel construction and installation method thereof |
-
2020
- 2020-06-16 CN CN202010549783.4A patent/CN111780819A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006004A (en) * | 2021-03-19 | 2021-06-22 | 吉林省佰强科技有限责任公司 | Novel water channel with automatic gate and water channel construction and installation method thereof |
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