Automatic channel flow monitoring device

Abstract

The invention discloses an automatic channel flow monitoring device, and belongs to the technical field of water flow measurement. An automatic channel flow monitoring device comprises a mounting frame mounted above a to-be-measured channel, the mounting frame spans the two banks of the to-be-measured channel, a detection beam for measuring the flow velocity and the water depth of a water body is arranged in the middle of the mounting frame, and the detection beam is mounted on the mounting frame in a lifting mode in the vertical direction. The mounting frame comprises two vertical beams and a cross beam connected with the two vertical beams, the lower parts of the vertical beams are provided with ground pile parts, the upper parts of the vertical beams are provided with lifting grooves for mounting the lifting mechanisms, and the detection beam is connected with the mounting frame through the lifting mechanisms; the flow monitoring device has the advantages that the flow monitoring device is suitable for flow monitoring in a channel with a wide water surface, and the flow velocity and water depth at different positions below the water surface can be conveniently detected.

Description

Technical Field

[0001] The present invention relates to the technical field of water flow measurement, and particularly relates to an automatic monitoring device for channel flow. Background Art

[0002] A channel flowmeter is a flowmeter for measuring the flow of natural free surfaces in non-full tubular open channels. Currently, it is divided into weir-type open channel flowmeters, flume-type open channel flowmeters, ultrasonic open channel flowmeters, electromagnetic open channel flowmeters, buoy method open channel flowmeters, etc., each with different advantages. For example, for a weir-type open channel flowmeter: a baffle is set at an appropriate position in the open channel, the water flow is blocked, the water level rises and then flows out from the weir opening. By measuring the stable water level height, and according to the type of weir (such as triangular weir, rectangular weir, etc.) and the corresponding flow calculation formula, the flow rate is obtained. For a flume-type open channel flowmeter: a certain section of the channel cross-section to be measured is narrowed to form a throat section. The flow velocity at the throat increases and the upstream water level is raised. The raised water level is measured, and the flow rate is deduced using the shape of the flume (such as Parshall flume) and the corresponding formula. According to their respective advantages, they are mainly applied in fields such as water conservancy projects, environmental protection monitoring, urban water services, and agricultural irrigation.

[0003] The working principles of channel flowmeters are mainly divided into three categories, namely the velocity-area method: the flow rate is determined by measuring the velocity of the water flow and the cross-sectional area of the channel, that is, the flow rate is equal to the average velocity multiplied by the cross-sectional area. The water level-flow rate relationship method: the flow rate is calculated according to the pre-established corresponding relationship between the water level and the flow rate. Usually, through experiments or theoretical analysis, the functional relationship between the water level and the flow rate under specific channel shapes, slopes, etc. is determined. The current meter method: a specific current meter, such as an electromagnetic current meter or an ultrasonic current meter, is used to directly measure the water flow velocity, and then the flow rate is calculated in combination with the relevant parameters of the channel. Generally speaking, it is mainly related to the cross-sectional area, water level, and flow velocity of the fluid in the channel, and relevant calculations are carried out to obtain the monitoring results.

[0004] However, in the process of monitoring the water flow of these current channel flowmeters, the following problems generally exist: First, it is mainly applicable to the measurement of water flow in relatively narrow channels, and it is inconvenient to monitor the flow in rivers or wider open channels; Second, in some fields (such as chemical industry, urban sewage treatment), there are often some impurities, foam, and waterweeds (in some rivers) in the water body, which will affect the sensor's detection of water depth and flow velocity, and affect the accuracy of the monitoring results; Third, in rivers, irrigation canals, and some sewage open channels, there will also be silt accumulation. Currently, when these monitoring instruments only measure the change in water level, it is difficult to obtain accurate water level data, resulting in a large error in the monitoring results; Fourth, when most devices detect the water flow velocity, they only obtain the flow velocity data at a single position. For a channel with a certain depth, the water flow velocities at different water depth and water surface positions also vary greatly, which will also cause a large error in the monitoring results. Summary of the Invention

[0005] The object of the present invention is to solve the problem of large errors in the existing channel water body flow monitoring device during wide channel flow monitoring, and to propose an automatic channel flow monitoring device.

[0006] To achieve the above object, the present invention adopts the following technical solutions: An automatic channel flow monitoring device includes a mounting frame installed above the channel to be measured. The mounting frame spans both banks of the channel to be measured. A detection beam for measuring the water body flow velocity and water depth is provided in the middle of the mounting frame. The detection beam is vertically and liftably installed on the mounting frame.

[0007] Further, the mounting frame includes two vertical beams and a cross beam connecting the two vertical beams. A ground pile part is provided at the lower part of the vertical beam. A lifting groove for installing a lifting mechanism is provided at the upper part of the vertical beam. The detection beam is connected to the mounting frame through a lifting mechanism.

[0008] Further, the lifting mechanism includes a guiding groove opened on the inner wall of the lifting groove, a rotating frame slidably installed in the guiding groove. The top of the rotating frame is connected to a hoisting mechanism, and the bottom of the rotating frame is connected to the detection beam.

[0009] Further, the detection beam includes a beam body. The two ends of the beam body are respectively connected to the rotating frame. The beam body is equipped with a water body flow velocity sensor for measuring the water body flow velocity and a water depth detection mechanism for measuring the water depth.

[0010] Further, the beam body includes a first pipe part and a second pipe part. The water body flow velocity sensor and the water depth detection mechanism are both installed on the first pipe part. The two ends of the first pipe part are telescopically installed with the second pipe part. The end of the second pipe part away from the first pipe part is connected to the rotating frame.

[0011] Further, a second rotating shaft is rotatably installed at the bottom of the rotating frame. The end of the second pipe part is connected to the second rotating shaft.

[0012] Further, the water body flow velocity sensor is installed on the top of the first pipe part, the water depth detection mechanism is installed at the bottom of the first pipe part. Grass cutting mechanisms for cutting waterweeds are installed on both the water-facing surface and the back surface of the first pipe part.

[0013] Further, there are multiple water body flow velocity sensors, grass cutting mechanisms, and water depth detection mechanisms. The multiple water body flow velocity sensors, grass cutting mechanisms, and water depth detection mechanisms are evenly spaced. The grass cutting mechanisms on the water-facing surface and the back surface are staggered.

[0014] Further, the water depth detection mechanism includes a fixed frame and a water depth detection radar. The water depth detection radar is swingably installed at the bottom of the first pipe part through the fixed frame.

[0015] Further, a water flow radar for comparing water flow velocity data is installed on the top of the mounting frame.

[0016] Compared with the prior art, the present invention provides an automatic monitoring device for channel flow, which has the following beneficial effects: When the automatic monitoring device for channel flow of the present invention is in use, the mounting frame is assumed above the channel to be measured, so that the mounting frame straddles both banks of the channel to be measured, and the detection beam is located in the water body of the channel. The flow velocity and water depth in the water body of the channel are detected by the detection beam, and by adjusting the lifting of the detection beam, the detection beam is adjusted to different heights in the channel, so as to detect the flow velocity at different water depths and water surface positions in the water body by the detection beam. Compared with the prior art, it is applicable to the water flow monitoring work in rivers with wide water surfaces, deep water levels and obvious seasonal changes in water levels.

[0017] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification; and to some extent, based on the study of the following text, it will be obvious to those skilled in the art; or, it can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a front view schematic diagram of the overall structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the detection beam structure of the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic diagram of the structure of part A; Figure 5 It is a top view schematic diagram of the detection beam structure of the present invention; Figure 6 For the present invention Figure 5 The enlarged schematic diagram of the structure of part B; Figure 7 It is a schematic diagram of the internal structure of the first pipe part of the present invention; Figure 8 It is a schematic diagram of the upper left view of the water depth detection mechanism structure of the present invention; Figure 9 It is a schematic diagram of the lower left view of the water depth detection mechanism structure of the present invention; Figure 10 It is a schematic diagram of the lifting mechanism structure of the present invention; Figure 11 It is a three-dimensional schematic diagram of the winch mechanism structure of the present invention; Figure 12It is the front view schematic diagram of the hoisting mechanism structure of the present invention; Figure 13 It is the schematic diagram of the detection beam inclination effect of the present invention.

[0019] In the figure: 1. Mounting frame; 101. Vertical beam; 102. Cross beam; 103. Ground pile part; 104. Lifting groove; 2. Detection beam; 201. Beam body; 202. First pipe part; 203. Second pipe part; 204. Water flow velocity sensor; 205. Mowing mechanism; 206. Water depth detection mechanism; 207. Mowing blade; 208. Mowing motor; 209. Fixed frame; 210. First rotating shaft; 211. Water depth detection radar; 212. Vertical shaft; 3. Lifting mechanism; 301. Guide groove; 302. Rotating frame; 303. Traction rope; 304. Second rotating shaft; 4. Water flow radar; 5. Hoisting mechanism; 501. Drum; 502. Reeling motor. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Embodiment 1 Referring to Figure 1-12 , an automatic channel flow monitoring device of the present invention includes a mounting frame 1 installed above the channel to be measured. In this application, the channel to be measured refers to an open and non-tubular open channel with a regular cross-section, including a river channel that has been hardened and trimmed and an artificially constructed open channel. The mounting frame 1 straddles both banks of the channel to be measured. The mounting frame 1 is of a gantry structure. When erected, the mounting frame 1 straddles both banks of the channel, and it is preferably that the cross beam 102 is perpendicular to the shore.

[0022] A detection beam 2 for measuring the water flow velocity and water depth is installed in the middle of the mounting frame 1. When installed, the detection beam 2 is immersed in water. The detection beam 2 is installed on the mounting frame 1 so as to be vertically liftable. During the working process, according to needs, the height of the detection beam 2 is adjusted to detect the water flow velocity and water depth of the water body at different depth positions. According to the water depth, the water level height is measured. Since the cross-sectional shape of the channel is determined and known, the water flow velocity and water depth of the water body at different positions can be used to calculate the flow rate of the water body in the channel at this cross-section position within a specified time.

[0023] For open channels and river channels with a relatively wide water surface and a relatively deep water depth, since the detection beam 2 spans the entire water surface and can be adjusted to different height positions below the water surface, it can be used to detect the water flow velocity at different water depth positions within the entire water surface width, and can also be applied to channels with obvious seasonal changes in water surface depth.

[0024] The mounting frame 1 includes two vertical beams 101 and a cross beam 102 connected to the two vertical beams 101. Here, a gantry structure is formed between the cross beam 102 and the vertical beams 101. A ground pile part 103 is welded to the lower part of the vertical beam 101. The ground pile part is used to extend into the ground below the channel ground to fix the device on the channel.

[0025] The upper part of the vertical beam 101 is processed with a lifting groove 104 for installing the lifting mechanism 3. The detection beam 2 is connected to the mounting frame 1 through the lifting mechanism 3. Lifting grooves 104 are processed inside the two vertical beams 101. Lifting mechanisms 3 are installed in both of the two lifting grooves 104. The lifting mechanism 3 drives the detection beam 2 to rise or fall from both ends, for adjusting the detection beam 2 to be at different depth positions in the water body.

[0026] Here, the lifting mechanism 3 drives the detection beam 2 to rise or fall from both ends, and there are mainly two lifting methods. One is that the two lifting mechanisms 3 rise or fall synchronously, driving the detection beam 2 to rise or fall synchronously from both ends, so that the two ends of the detection beam 2 rise or fall synchronously, and the height difference between the two ends of the detection beam 2 remains unchanged, and the detection beam 2 always remains horizontal or always remains in an inclined state with the same inclination angle. The other is that the rising or falling speed or direction of the two lifting mechanisms 3 is different, so that the rising or falling direction or speed of the two ends of the detection beam 2 is different, for adjusting the horizontal or inclined state of the detection beam 2, or specifically adjusting the inclination angle, inclination direction, etc. of the detection beam 2.

[0027] The lifting mechanism 3 includes a guiding groove 301 opened on the inner wall of the lifting groove 104. The guiding groove 301 is opened along the vertical side wall of the lifting groove 104. It also includes a rotating frame 302 slidably installed in the guiding groove 301. The top of the rotating frame 302 is connected to the hoisting mechanism 5, and the bottom of the rotating frame 302 is connected to the detection beam 2. The main function of the rotating frame 302 is to dynamically connect the lifting groove 104, the detection beam 2 and the hoisting mechanism 5.

[0028] The hoisting mechanism 5 includes a drum 501 and a winding click 502. The drum 501 is rotatably installed at the inner top of the vertical beam 101. A traction rope 303 is installed on the drum 501. The traction rope 303 is a rope with a wire embedded inside. One end of the traction rope 303 is connected to the drum 501, and the other end is connected to the rotating frame 302. The wire inside the traction rope 303 is electrically connected to the water flow velocity sensor 204, the mowing mechanism 205, and the water depth detection mechanism 206 through the hollow first pipe part 202 and the second pipe part 203, for power transmission and data transmission.

[0029] The winding drum 501 is rotatably installed at the inner top of the vertical beam 101. A toothed first pulley is keyed to the shaft of the winding drum 501. And a winding motor 502 is installed inside the end of the cross beam 102 close to the vertical beam 101. A second pulley matching the first pulley is installed on the working end of the winding motor 502. The second pulley is located directly above the first pulley. The first pulley and the second pulley are connected by a toothed belt for transmission. By rotating the winding motor 502 forward or backward, the winding drum 501 is driven to rotate forward or backward, further driving the lifting mechanism 3 to rise or fall, thereby driving the end of the detection beam 2 to rise or fall.

[0030] During the process of adjusting the rise or fall of the detection beam 2, the height position of the end of the detection beam 2 can be calculated through the operating parameters of the winding motor 502. Then, according to the inclination angle of the detection beam 2, the height positions of the water velocity sensors 204 and the water depth detection mechanism 206 at different positions on the first pipe part 202 in the water can be calculated, so as to confirm which position data below the water surface are detected by the water velocity sensors 204 and the water depth detection mechanism 206.

[0031] The detection beam 2 includes a beam body 201 which also spans across both banks of the channel and is located below the water surface. The beam body 201 is used to install sensors and other devices.

[0032] Both ends of the beam body 201 are respectively connected to the rotating frame 302. The beam body 201 is installed with a water velocity sensor 204 for measuring the water velocity and a water depth detection mechanism 206 for measuring the water depth. When the beam body 201 is driven to move and change positions in the water by the lifting mechanism 3, the water velocity sensor 204 located on the beam body 201 can detect the water velocities at corresponding different positions. And the water depth detection mechanism 206 is used to detect the water depth. Since the water surface height is related to the water depth and the silt depth, the height of the detection beam 2 can be known through the lifting mechanism 3. When the height of the bottom of the channel and the waterway is determined, after the water depth is detected by the water depth detection mechanism 206, the silt depth can be calculated.

[0033] Here, taking the altitude as an example, the height of the waterway at the section position is h1, the water surface height is h2, the detected water depth is h3, and the silt thickness is h4. Then h2 - h1 = h3 + h4. When h4 = h2 - h1 - h3 = 0, it means there is no silt. When h4 > 0, it means there is silt with a thickness of h4. And according to the distribution of the silt, the actual cross-sectional area of the river channel water body in this section can be calculated, and then combined with the water velocity, the water flow rate can be calculated.

[0034] The beam body 201 includes a first pipe portion 202 and a second pipe portion 203. The water flow velocity sensor 204 and the water depth detection mechanism 206 are both installed on the first pipe portion 202. Both ends of the first pipe portion 202 are telescopically installed with the second pipe portion 203. One end of the second pipe portion 203 away from the first pipe portion 202 is connected to the rotary frame 302. As mentioned above, the lifting mechanism 3 drives the detection beam 2 to lift through the rotary frame 302. Specifically, the rotary frame 302 is connected to the first pipe portion 202 through the second pipe portion 203, driving the overall beam body 201 and the water flow velocity sensor 204 and the water depth detection mechanism 206 located on the first pipe portion 202 to adjust their positions.

[0035] Both the first pipe portion 202 and the second pipe portion 203 are tubular structures, used for installing internal equipment and laying wires. Specifically, the end of the first pipe portion 202 is axially slidably connected to the second pipe portion 203. A chute is opened on the inner wall of the first pipe portion 202, and a slider corresponding to this chute is welded on the outer wall of the second pipe portion 203. And a tension spring is also installed between the second pipe portion 203 and the first pipe portion 202.

[0036] In the initial state, between the second pipe portion 203 and the first pipe portion 202, the tension spring is in the initial state. The length of the beam body 201 composed of the first pipe portion 202 and the second pipe portion 203 is roughly the same as the distance between the two vertical beams 101. When the beam body 201 tilts under the driving action of the lifting mechanism 3, the length of the beam body 201 becomes longer.

[0037] Specifically, when the lifting speeds or directions of the two lifting mechanisms 3 are different, the beam body 201 tilts, and the second pipe portion 203 starts to stretch out relative to the first pipe portion 202, then the tension spring is stretched from the initial state. There is a tendency for the second pipe portion 203 and the first pipe portion 202 to automatically contract under the pulling force of the tension spring. When the beam body 201 changes from the tilted state to the horizontal state, the tilt angle of the beam body 201 becomes smaller, then the second pipe portion 203 automatically contracts into the interior of the first pipe portion 202 under the pulling force of the tension spring, and the length of the beam body 201 automatically becomes shorter.

[0038] The bottom of the rotary frame 302 is rotatably installed with a second rotating shaft 304. The axial direction of the second rotating shaft 304 is parallel to the water flow direction. The end of the second pipe portion 203 is connected to the side wall of the second rotating shaft 304. When the rotary frame 302 drives the second pipe portion 203 to move, the second rotating shaft 304 and the second pipe portion 203 rotate synchronously by a certain angle.

[0039] The water flow velocity sensor 204 is installed on the top of the first pipe portion 202. The water flow velocity sensor 204 is used to detect the water flow velocity at this position. The water depth detection mechanism 206 is installed at the bottom of the first pipe portion 202. The water depth detection mechanism 206 detects the underwater depth by emitting ultrasonic waves downward.

[0040] Grass cutting mechanisms 205 for cutting aquatic plants are installed on both the water-facing surface and the water-receiving surface of the first pipe portion 202. The grass cutting mechanisms 205 cut the aquatic plants or other impurities entangled on the detection beam 2 into pieces, so as to prevent the aquatic plants from affecting the normal operation of the device.

[0041] The grass cutting mechanism 205 includes a grass cutting blade 207 and a grass cutting motor 208. The grass cutting blade 207 is rotatably mounted on the water-facing surface and the water-receiving surface of the first pipe portion 202 via a third rotating shaft. The axial direction of the third rotating shaft is also parallel to the direction of the water flow. The grass cutting motor 208 is mounted inside the first pipe portion 202. The grass cutting blade 207 is connected to the working end of the grass cutting motor 208. The grass cutting motor 208 is powered and controlled via the built-in wires of the aforementioned traction rope 303.

[0042] There are multiple water flow rate sensors 204, grass cutting mechanisms 205, and water depth detection mechanisms 206. The multiple water flow rate sensors 204, grass cutting mechanisms 205, and water depth detection mechanisms 206 are evenly spaced. The grass cutting mechanisms 205 on the water-facing surface and the water-receiving surface are staggered. The staggered grass cutting mechanisms 205 allow the grass cutting mechanisms 205 to cover the entire first tube portion 202 along the axial direction of the first tube portion 202, so as to cut up the water grass that may be entangled on the first tube portion 202.

[0043] The size of the water flow rate sensors 204 and the water depth detection mechanism 206 arranged at intervals does not exceed the width of the first pipe portion 202 to avoid interference with the lawn mowing blade 207 when the lawn mowing blade 207 rotates. The water flow rate sensors 204 and the water depth detection mechanism 206 arranged at intervals are used to detect the water flow rate at different positions at the same level and different positions at different levels on the cross-sectional position and the corresponding silt thickness at the position.

[0044] Of course, the device is also equipped with a computer system that calculates the total amount of water flowing through within a specified time through water depth, water level, flow velocity, and water flow cross-sectional area.

[0045] The water depth detection mechanism 206 includes a fixing frame 209 and a water depth detection radar 211. The water depth detection radar 211 is swingably installed at the bottom of the first pipe part 202 through the fixing frame 209. Specifically, the top of the fixing frame 209 is connected to the bottom of the first pipe part 202. A first rotating shaft 210 is installed at the bottom of the fixing frame 209. The axis of the first rotating shaft 210 faces the direction of the water flow. A vertical shaft 212 is installed at the bottom of the first rotating shaft 210. The top of the vertical shaft 212 is connected to the side wall of the bottom of the first rotating shaft 210, and the bottom of the vertical shaft 212 is connected to the water depth detection radar 211.

[0046] In this way, when the beam body 201 adjusts its height and tilt angle through the lifting mechanism 3, the water depth detection radar 211 will drive the vertical axis 212 and the first rotating axis 210 to rotate under the action of its own weight, so that the vertical axis 212 always remains in a vertical state, and the water depth detection radar 211 always remains perpendicular to the riverbed, thereby detecting the water depth by emitting ultrasonic waves.

[0047] A water flow radar 4 for comparing water flow rate data is installed on the top of the mounting frame 1. The water flow radar 4 can select a radar flow meter for detecting open channel water flow. While detecting the surface flow rate of the water body, it can also detect the water level of the water body. The function of the water flow radar 4 is to compare the water flow rate and water level data detected by the water flow radar 4 with the water flow rate detected by the water flow rate sensor 204 and the water depth data detected by the water depth detection mechanism 206 below the water flow radar 4 for calibration and to reduce errors.

[0048] Example 2 Reference Figure 13 The present invention provides an automatic channel flow monitoring device. The difference between this embodiment and embodiment 1 is that the vertical beam 101 of the mounting frame 1 is not in a vertical state, but in an inclined state, and the bottoms of the two vertical beams 101 are close to the middle. Specifically, the inclination angle of the vertical beam 101 is consistent with the inclination angle of the side walls and river banks on both sides of the open channel and the river channel, so that the mounting frame 1 can fit with the side walls of the open channel and the river bank during the installation process, so that during the detection process of the detection beam 2, the entire detection beam 2 can be immersed below the water surface.

[0049] Generally speaking, the detection beam 2 in the present application is a liftable structure, which cooperates with the water flow velocity sensor 204 and the water depth detection mechanism 206 on the detection beam 2 to detect water flow data at different water depths.

[0050] The water velocity sensor 204 and the water depth detection mechanism 206 are distributed along the axial direction of the detection beam 2. During dynamic adjustment, the water flow data at different positions in the width direction of the water surface can be detected, which is suitable for flow monitoring in wide water surface channels.

[0051] The detection beam 2 is also a retractable structure, and the heights of both ends of the detection beam 2 can be adjusted separately, so that the inclination of the detection beam 2 can be adjusted, and it is used to detect water flow data at different depths and widths below the water surface at the same time.

[0052] When in use, the detection beam 2 is located underwater, which can effectively avoid being affected by foam and floating objects on the water surface. While expanding the scope of application, it can cooperate with the water body flow radar 4 on the cross beam 102. The water body flow radar 4 detects the water flow data of a local area of the water body (the area near directly below the water body flow radar 4) from outside the water body and compares it with the data detected by the detection beam 2 to ensure the accuracy of the data.

[0053] The lawn mowing mechanism 207 is installed on the detection beam 2. When the detection beam 2 adjusts its position, it can cut and remove waterweeds at different positions of this cross-section inside the river channel to prevent the detection beam 2 from being entangled.

[0054] The first rotating shaft 210, the vertical shaft 212 and the water depth detection radar 211 cooperate to achieve the effect of automatic attitude correction, so that the water depth detection radar 211 always faces downward, which has the function of achieving automatic correction during the process of the detection beam 2 adjusting the tilt angle to ensure the detection effect.

[0055] Working principle: Before use, install the mounting frame 1 above the channel to be measured, drive the ground pile part 103 into the ground, so that the two vertical beams 101 are located on both banks of the open channel and the river channel, and the cross beam 102 spans across the water surface of the open channel and the river channel, and makes the cross beam 102 perpendicular to the water flow direction.

[0056] When in use, the water body flow velocity sensor 204 and the water depth detection mechanism 206 are in the normally open state. Regularly start the cigarette rolling mechanism 5 and the lawn mowing mechanism 205, drive the detection beam 2 to move in the water body through the lifting mechanism 3, and adjust the water body flow velocity sensor 204 and the water depth detection mechanism 206 at different positions to move at different positions below the water surface for detecting the water flow velocity and water depth changes at different positions and different times below the water surface. The data is transmitted to the calculation system. After comparing the data with the water flow velocity and water level detected by the water body flow radar 4, the water body flow rate at this position is calculated for flow monitoring.

[0057] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

[0058] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A channel flow automatic monitoring device, characterized in that: The invention comprises a mounting frame (1) mounted above a channel to be measured, the mounting frame (1) spanning both banks of the channel to be measured, a detection beam (2) for measuring water flow velocity and water depth being arranged in the middle of the mounting frame (1), the detection beam (2) being mounted on the mounting frame (1) so as to be liftable in a vertical direction.

2. The automatic channel flow monitoring device according to claim 1 is characterized in that: The mounting frame (1) comprises two vertical beams (101) and a horizontal beam (102) connected to the two vertical beams (101); a ground pile portion (103) is provided at the lower portion of the vertical beam (101); a lifting groove (104) for installing a lifting mechanism (3) is provided at the upper portion of the vertical beam (101); and the detection beam (2) and the mounting frame (1) are connected via the lifting mechanism (3).

3. The automatic channel flow monitoring device according to claim 2 is characterized in that: The lifting mechanism (3) comprises a guide groove (301) formed on the inner wall of the lifting groove (104), a rotating frame (302) slidably mounted in the guide groove (301), the top of the rotating frame (302) being connected to the hoisting mechanism (5), and the bottom of the rotating frame (302) being connected to the detection beam (2).

4. The automatic channel flow monitoring device according to claim 3 is characterized in that: The detection beam (2) comprises a beam body (201), both ends of the beam body (201) are respectively connected to a rotating frame (302), and the beam body (201) is installed with a water flow velocity sensor (204) for measuring water flow velocity and a water depth detection mechanism (206) for measuring water depth.

5. The automatic channel flow monitoring device according to claim 4 is characterized in that: The beam body (201) comprises a first pipe portion (202) and a second pipe portion (203); the water flow velocity sensor (204) and the water depth detection mechanism (206) are both mounted on the first pipe portion (202); the second pipe portions (203) are telescopically mounted at both ends of the first pipe portion (202); and one end of the second pipe portion (203) away from the first pipe portion (202) is connected to the rotating frame (302).

6. The automatic channel flow monitoring device according to claim 5, characterized in that: A second rotating shaft (304) is rotatably mounted on the bottom of the rotating frame (302), and an end of the second tube portion (203) is connected to the second rotating shaft (304).

7. The automatic channel flow monitoring device according to claim 5, characterized in that: The water flow rate sensor (204) is installed on the top of the first pipe part (202), the water depth detection mechanism (206) is installed on the bottom of the first pipe part (202), and a grass cutting mechanism (205) for cutting aquatic grass is installed on both the water-facing surface and the water-receiving surface of the first pipe part (202).

8. The automatic channel flow monitoring device according to claim 7, characterized in that: There are multiple water flow velocity sensors (204), grass cutting mechanisms (205), and water depth detection mechanisms (206). The multiple water flow velocity sensors (204), grass cutting mechanisms (205), and water depth detection mechanisms (206) are evenly spaced, and the grass cutting mechanisms (205) on the water-facing surface and the water-receiving surface are staggered.

9. The automatic channel flow monitoring device according to claim 7, characterized in that: The water depth detection mechanism (206) comprises a fixing frame (209) and a water depth detection radar (211); the water depth detection radar (211) is swingably mounted on the bottom of the first pipe part (202) via the fixing frame (209).

10. The automatic channel flow monitoring device according to claim 1, characterized in that: A water flow radar (4) for comparing water flow velocity data is installed on the top of the mounting frame (1).

Images