Automatic flow measuring device for Parshall measuring weir

Abstract

The utility model belongs to the technical field of open channel flow measuring devices, and particularly relates to an automatic flow measuring device for a Parshall measuring weir, which comprises a Parshall groove. A throat section is arranged in the middle of the Parshall groove, a water level plate is arranged in the throat section, a water level gauge is arranged on the inner wall of the water level plate, guide rails are fixedly installed on the two sides of the water level plate, floating devices are slidably connected to the surfaces of the guide rails, and a fixing block is fixedly installed at the top of the throat section. The bottom of the fixing block is movably provided with a camera device, the top of the fixing block is fixedly provided with a supporting column, the top of the supporting column is fixedly connected with a solar panel, through the arrangement of the floating device, the position of the floating device can be automatically adjusted according to the change of the water level, and when the water level rises, the floating device also rises; therefore, the actual water level change condition can be reflected more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of open channel flow measurement devices, in particular to an automatic flow measurement device for a Parshall weir. Background Art

[0002] Currently, the water measuring devices used to measure open channels include electronic water gauges and Parshall weirs. In actual use, electronic water gauges are easily entangled by debris and affect the measurement accuracy. Parshall weirs record the liquid level height at a certain point in time through human observation, and then calculate the corresponding flow rate through the measured liquid level value and other related parameters.

[0003] After searching, the publication number is: CN219977468U. A remote visualized automatic flow measuring device for a Parshall trough comprises a Parshall trough body, water level gauges are arranged on the inner walls on both sides of the contraction section of the Parshall trough body, a trough reinforcement frame is arranged above the Parshall trough body, a support frame is arranged on the trough fixing frame, a dustproof protective cover is arranged outside the support frame, and a camera and a fill light are respectively installed on the support frame through a connecting installer. The data collected by the camera is transmitted to the control electrical box through a transmission cable, and the water level and flow data are transmitted to the remote monitoring center through the communication module in the control electrical box. The utility model avoids the problem of flow measurement errors caused by the Parshall trough being eroded and deformed by water flow during use, ensures its own flow measurement accuracy, and can solve the safety problems and narrow applicable environment problems of traditional manual readings, and realizes data visualization.

[0004] The device has the following disadvantages: Although the above device avoids the flow measurement error caused by the deformation of the Parshall flume due to water erosion during use, ensures its own flow measurement accuracy, and solves the safety problems and narrow applicable environment problems of traditional manual readings, and realizes data visualization, in actual use, the water level gauge of the device is not equipped with a floating device, and the water level measurement may be disturbed or erroneous, resulting in inaccurate flow measurement. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the prior art has the disadvantage of inaccurate measurement, and therefore an automatic flow measuring device for a Parshall weir is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] An automatic flow measuring device for a Parshall weir comprises a Parshall flume; a throat section is arranged in the middle part of the Parshall flume, a water level plate is arranged in the throat section, a water level gauge is opened on the inner wall of the water level plate, guide rails are fixedly installed on both sides of the water level plate, a floating device is slidably connected to the surface of the guide rails, a fixed block is fixedly installed on the top of the throat section, a camera device is movably installed on the bottom of the fixed block, a support column is fixedly installed on the top of the fixed block, and a solar panel is fixedly connected to the top of the support column.

[0008] Preferably, a sliding block is provided in the floating device, and a connecting column is fixedly connected to the front side of the sliding block.

[0009] Preferably, a floating board is fixedly connected to the front side of the connecting column, and a digital display screen is arranged on the top of the floating board.

[0010] Preferably, a battery box is provided on the other side of the digital display screen, and a battery cover is movably installed on the top of the battery box.

[0011] Preferably, a rolling block is provided in the camera device, and a connecting rod is fixedly connected to the bottom of the rolling block.

[0012] Preferably, a protective shell is fixedly connected to the bottom of the connecting rod.

[0013] Preferably, a camera is arranged in the protective shell.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model can provide accurate water level data through the setting of water level plate and water level gauge, so as to accurately calculate the flow rate. Through the setting of floating device, the position of floating device can be automatically adjusted according to the change of water level. When the water level rises, the floating device also rises accordingly, so as to more accurately reflect the actual water level change.

[0016] 2. The utility model can directly observe the digital display screen on the floating board through the setting of the camera device, which is convenient for users to monitor and obtain flow data in real time. At the same time, by adjusting the camera, the water flow can be observed, so as to have a more comprehensive understanding of the flow changes and make necessary adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0019] Figure 2 It is a bottom-view cross-sectional three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the floating device of the utility model;

[0021] Figure 4 It is a schematic structural diagram of the camera device of the present utility model.

[0022] In the figure: 1. Parshall flume; 2. throat section; 3. water level plate; 4. water level gauge; 5. guide rail; 6. floating device; 601. sliding block; 602. connecting column; 603. floating board; 604. digital display screen; 605. battery box; 606. battery cover; 7. fixing block; 8. camera device; 801. rolling block; 802. connecting rod; 803. protective shell; 804. camera; 9. supporting column; 10. solar panel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The following is combined with Figure 1-4 To further explain this application in detail,

[0025] The present application embodiment discloses an automatic flow measurement device for a Parshall weir, referring to Figure 1 and Figure 2, including a Parshall trough 1; a throat section 2 is provided in the middle part of the Parshall trough 1, a water level plate 3 is provided in the throat section 2, a water level gauge 4 is provided on the inner wall of the water level plate 3, guide rails 5 are fixedly installed on both sides of the water level plate 3, a floating device 6 is slidably connected to the surface of the guide rail 5, a fixed block 7 is fixedly installed on the top of the throat section 2, a camera device 8 is movably installed on the bottom of the fixed block 7, a support column 9 is fixedly installed on the top of the fixed block 7, and a solar panel 10 is fixedly connected to the top of the support column 9; through the setting of the water level gauge 4 on the water level plate 3, accurate water level data can be provided, so that the flow rate can be accurately calculated, through the setting of the floating device 6, the actual water level change can be more accurately reflected, through the setting of the camera device 8, the digital display screen 604 on the floating board 603 can be directly observed, and the water flow can also be observed, so as to more comprehensively understand the flow change and make necessary adjustments, and through the setting of the solar panel 10, sunlight can be converted into electrical energy to provide the power required by the device.

[0026] Reference Figure 3 A sliding block 601 is provided in the floating device 6, and a connecting column 602 is fixedly connected to the front of the sliding block 601; the floating plate 603 is driven by buoyancy to adaptively adjust according to the change of water level, thereby driving the sliding block 601 to move on the guide rail 5.

[0027] Reference Figure 3 A floating board 603 is fixedly connected to the front of the connecting column 602, and a digital display screen 604 is set on the top of the floating board 603; through the setting of the digital display screen 604, when the water level changes, the floating board 603 will automatically adjust its position, and the water level gauge 4 will be updated in real time and display the water level digitally on the digital display screen 604.

[0028] Reference Figure 3 A battery box 605 is arranged on the other side of the digital display screen 604, and a battery cover 606 is movably installed on the top of the battery box 605; through the arrangement of the battery box 605, a stable power supply can be provided for the digital display screen 604.

[0029] Reference Figure 4 A rolling block 801 is provided in the camera device 8, and a connecting rod 802 is fixedly connected to the bottom of the rolling block 801; the setting of the rolling block 801 facilitates the adjustment of the angle of the camera 804.

[0030] Reference Figure 4 A protective shell 803 is fixedly connected to the bottom of the connecting rod 802, and a camera 804 is arranged in the protective shell 803; through the setting of the camera 804, the digital display screen 604 on the floating board 603 can be directly observed, which is convenient for users to monitor and obtain flow data in real time. At the same time, by adjusting the camera 804, the water flow can also be observed, so as to have a more comprehensive understanding of the flow changes and make necessary adjustments.

[0031] Working principle: The buoyancy drives the floating plate 603 to adjust adaptively according to the change of water level, thereby driving the movement of the sliding block 601 on the guide rail 5, so as to facilitate the use of the water level gauge 4 on the water level plate 3 to more intuitively display the current water level height. When the water level changes, the floating plate 603 will automatically adjust its position, and the water level gauge 4 will be updated in real time and display the water level digitally on the digital display screen 604. In this way, the operator can intuitively understand the current flow situation, and can directly observe the digital display screen 604 on the floating plate 603 through the camera 804, which is convenient for the user to monitor and obtain flow data in real time. At the same time, by adjusting the angle of the camera 804 by the rolling block 801, the water flow situation can also be observed, so as to have a more comprehensive understanding of the flow change and make necessary adjustments.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An automatic flow measurement device for a Parshall weir, characterized in that: The invention comprises a Parshall trough (1); a throat section (2) is arranged in the middle part of the Parshall trough (1); a water level plate (3) is arranged in the throat section (2); a water level gauge (4) is provided on the inner wall of the water level plate (3); guide rails (5) are fixedly installed on both sides of the water level plate (3); a floating device (6) is slidably connected to the surface of the guide rail (5); a fixed block (7) is fixedly installed on the top of the throat section (2); a camera device (8) is movably installed on the bottom of the fixed block (7); a support column (9) is fixedly installed on the top of the fixed block (7); and a solar panel (10) is fixedly connected to the top of the support column (9).

2. The automatic flow measurement device for a Parshall weir according to claim 1, characterized in that: A sliding block (601) is arranged inside the floating device (6), and a connecting column (602) is fixedly connected to the front side of the sliding block (601).

3. The automatic flow measuring device for a Parshall weir according to claim 2, characterized in that: A floating board (603) is fixedly connected to the front of the connecting column (602), and a digital display screen (604) is arranged on the top of the floating board (603).

4. The automatic flow measurement device for a Parshall weir according to claim 3, characterized in that: A battery box (605) is provided on the other side of the digital display screen (604), and a battery cover (606) is movably installed on the top of the battery box (605).

5. The automatic flow measurement device for a Parshall weir according to claim 1, characterized in that: A rolling block (801) is arranged inside the camera device (8), and a connecting rod (802) is fixedly connected to the bottom of the rolling block (801).

6. The automatic flow measurement device for a Parshall weir according to claim 5, characterized in that: The bottom of the connecting rod (802) is fixedly connected to a protective shell (803).

7. The automatic flow measurement device for a Parshall weir according to claim 6, characterized in that: A camera (804) is arranged inside the protective shell (803).

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