Self-adaptive rectification inclined sill device applied to urban curved river channel and working method of self-adaptive rectification inclined sill device

Abstract

The invention provides a self-adaptive rectification inclined sill device applied to an urban curved river channel and a working method of the self-adaptive rectification inclined sill device. The self-adaptive rectification inclined sill device comprises a rectification inclined sill device body arranged in a rectification energy dissipation area at a curved channel of the curved river channel. The height adjusting mechanism is used for automatically adjusting the water level height of the rectification inclined sill device in water according to different water levels in the curved river channel, and the height adjusting mechanism comprises a water level information collecting module used for collecting water level and water depth information near the rectification inclined sill device; the height lifting mechanism is arranged between the rectifying inclined sill device and the bottom of the riverbed; the signal input end of the control module is connected with the water level information acquisition module, and the signal output end of the control module is connected with the height lifting mechanism. According to the device, the water flow structure of the bend is adjusted, scouring of concave banks and sedimentation of convex banks of the bend are avoided, meanwhile, aquatic vegetation is used for purifying water quality, the landscape effect of a river channel is improved, and the device further has the functions of adaptively and intelligently adjusting the uniformity of river flow and repairing the water environment.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy and hydropower engineering, and in particular to an adaptive rectifying inclined sill device applied to a curved river channel in an urban area. Background Art

[0002] In cities or plain areas, water flows in bends are mostly slow. When water flows through bends, a complex flow structure will be generated, which intensifies the transport of sediment in the cross section, causing the concave banks to be continuously eroded and the convex banks to be continuously silted up, increasing the curvature of the river channel, endangering the stability and safety of the embankment, and causing river diversions and other phenomena.

[0003] When water flows through a bend, it is affected by the combined effects of gravity and centrifugal inertia. In addition to the longitudinal flow velocity (vertical water section), the water flow also has radial and vertical flow velocities. As the flows in these directions are intertwined, a lateral circulation is generated in the cross-section of the river (the lateral surface water flows toward the concave bank, and the bottom water flows toward the convex bank).

[0004] For the curved river channels in cities or plain areas, in order to avoid further scouring and siltation of the concave and convex banks of the river channels, combined with the construction of river ecological landscape, an adaptive rectifying sill device applied to curved river channels in cities is provided, and the water flow is adjusted in combination with the aquatic vegetation above it, which has the functions of rectifying, improving the water ecological environment, and enhancing the river landscape elements. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an adaptive rectifying sill device and a working method thereof for use in curved urban rivers. The device can better homogenize the water flow in the curved river, avoid further scouring and silting of the river, and meet people's ornamental needs and landscape aesthetic requirements.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An adaptive rectifying sloping sill device applied to a curved river in an urban area, comprising:

[0008] The rectifying sloping sill device is set in the rectifying energy dissipation area at the bend of the curved river channel;

[0009] It also includes a height adjustment mechanism for automatically adjusting the water level of the rectifying sill device in the water according to the different water levels in the curved river channel, so that the rectifying sill device works at the optimal water level. The height adjustment mechanism includes:

[0010] Water level information collection module, used to collect water level and water depth information near the rectifier sill device;

[0011] A height lifting mechanism is arranged between the rectifying sill device and the bottom of the riverbed;

[0012] The control module has a signal input end connected to the water level information acquisition module, and a signal output end connected to the height lifting mechanism.

[0013] Furthermore, the height lifting mechanism comprises:

[0014] The fixing screw rod is arranged vertically, and its bottom end is fixedly connected to the bottom of the riverbed;

[0015] A transmission screw is spirally sleeved on the upper outer side of the fixed screw and is connected to the rectifying inclined sill device through a bearing, and a driven gear is coaxially fixedly connected to the outer side of the transmission screw, and the driven gear is connected to the rectifying inclined sill device through a limiting mechanism;

[0016] A driving gear meshing with the driven gear, the driving gear being mounted on a driving shaft of a first motor, and the first motor being fixedly mounted on the rectifying ramp device;

[0017] The first motor drives the shaft to rotate, and drives the driven gear to rotate through the driving gear. The driven gear rotates to drive the transmission screw to rotate relative to the fixed screw and move vertically along the axis of the fixed screw, thereby driving the rectifying ramp device to move up and down as a whole.

[0018] Furthermore, two sets of height lifting mechanisms are arranged at the front and rear ends of the bottom of the rectifying slant sill device along the water flow direction, and each set of height lifting mechanisms includes two fixed screws, and the two fixed screws are respectively arranged on the left and right sides of the rectifying slant sill device, and the upper part of each fixed screw is connected with a transmission screw, which are the first transmission screw and the second transmission screw, respectively, wherein the first transmission screw is meshed with the driving gear through the first driven gear, and the second transmission screw is synchronized with the first driven gear through the second driven gear and the gear transmission belt.

[0019] Furthermore, a conical fixing rod inserted into the bottom of the riverbed is provided at the bottom end of the fixing screw.

[0020] Furthermore, the rectifying slash sill device comprises a box body with a trapezoidal longitudinal section.

[0021] Furthermore, it also includes:

[0022] Plant cultivation box, floating on the water surface through the bottom float;

[0023] A limiting mechanism, connected between the plant cultivation box and the rectifying inclined sill device, for limiting the plant cultivation box to be directly above the rectifying inclined sill device, comprises:

[0024] A support frame, the bottom of which is fixedly connected to the rectifying slash device, and a vertically arranged limiting slide groove is provided on the support frame;

[0025] The limiting slide buckle is fixedly connected to the plant cultivation box, and the limiting slide buckle is slidably connected in the limiting slide groove.

[0026] Furthermore, it also includes:

[0027] A second motor is fixedly connected to the rectifying inclined sill device, and a driving shaft of the second motor is arranged horizontally and coaxially connected with a long rod;

[0028] One end of the rope is wound around the long pole, and the other end is connected to the thin pole between the limit slide buckle and the rectifying inclined sill device. The driving shaft of the second motor drives the long pole to rotate and thus fine-tune the floating height of the plant cultivation box.

[0029] Furthermore, the first motor is a stepping motor.

[0030] The present invention further discloses a working method based on the adaptive rectifying sloping sill device applied to a curved river in an urban area, comprising the following steps:

[0031] S1. Arrange the rectifying sill device from the connection between the straight channel and the bend at the riverbed inlet to the connection between the bend and the straight channel at the riverbed outlet;

[0032] The distance H between the center of the box structure of the inclined sill device and the bottom of the riverbed m ,

[0033] H m =0.55(sinα) -0.80 H,

[0034] Where: α is the inclination angle of the concave bank, H is the riverbed depth;

[0035] S2, when the riverbed water depth near the rectifying sloping sill device changes from H1 to H2, the water level information acquisition module will be the center position of the box structure of the rectifying sloping sill device before the water level changes H m1 The data is transmitted to the receiving end of the control module, and the water depth is calculated and processed by the control module. The output end outputs the center position H of the box structure of the rectifying inclined sill device after the water level changes. m2 , control the first motor drive shaft to rotate, drive the box structure of the rectifying inclined sill device to be able to adjust the height longitudinally to change the position of the center of the box structure of the rectifying inclined sill device from H m1 Move to H m2 , so that the rectifying sill device can work at the optimal water level.

[0036] Beneficial effects:

[0037] First: The present invention provides an adaptive rectifying sloping sill device applied to urban curved rivers, which can not only equalize the water flow and avoid further scouring and silting of the river channel; due to the effect of vegetation, a large amount of suspended sediment particles will be intercepted, so that the sediment on the concave bank will increase relatively, and the convex bank will cause the originally deposited sediment to be scoured due to the diversion effect, thereby achieving the effect of improving the riverbed structure.

[0038] Second: The present invention is an adaptive rectifier sill device applied to curved urban rivers. The rectifier sill device is raised and lowered by a first motor in combination with water level information to ensure that the rectifier sill device operates at the most optimal water level, thereby achieving the best water flow adjustment effect.

[0039] Third: The present invention is an adaptive rectifying sloping sill device applied to curved urban rivers. While homogenizing the river flow and avoiding further scouring and siltation of the river, the ornamental aquatic vegetation has a landscape effect and can be appreciated by people, meeting the idea of ​​combining ecological protection with water conservancy projects. It is not only conducive to promoting the homogenization of the flow state of curved water flow, but also has the functions of rectifying, improving the water ecological environment, and enhancing the river landscape elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the longitudinal section structure of the rectifying inclined sill structure of the present invention;

[0041] Figure 2 This is a schematic diagram of the cross-sectional structure of the rectifying inclined sill structure of the present invention;

[0042] Figure 3 This is a diagram of the upper structure of the plant cultivation box and device of the present invention;

[0043] Figure 4 This is an enlarged view of part A of the present invention;

[0044] Figure 5 This is an enlarged view of part B of the present invention;

[0045] Figure 6 It is a schematic diagram of the positions of the bearing base, the transmission screw and the fixed screw of the present invention;

[0046] Figure 7 It is a schematic diagram (top view) of the planar arrangement of multiple groups of rectifying slash sill devices in the bend part of the present invention;

[0047] Figure 8 is the distribution pattern of the longitudinal velocity profile on the concave bank of the bend;

[0048] In the figure: 1 is ornamental vegetation, 2 is a water level information acquisition module, 3 is a control module, 4 is a plant cultivation box, 5 is a box body of a rectifying inclined sill device, 6 is a fixed screw, 7 is a gear transmission belt, 8 is a conical fixed rod, 9 is a driving gear, 10 is a first driven gear, 11 is a second driven gear, 12 is a first transmission screw, 13 is a second transmission screw, 14 is a first motor, 15 is a rectifying inclined sill device, 16 is a bend entrance, 17 is a bend exit, 18 is a bend concave bank, 19 is a bend convex bank, 20 is a water surface, 21 is a riverbed, 22 is a second motor, 23 is a long rod, 24 is a floating plate, 25 is a limit slide buckle, 26 is a limit slide groove, 27 is a rope, 28 is a thin rod, 29 is a bearing base, D is a water flow width, D1 is a rectifying energy dissipation zone width, D2 is a flow zone width near the convex bank, H is a riverbed water depth, H m is the distance between the box structure of the sloping sill device and the bottom of the riverbed, S0 is the box height of the rectifying sloping sill device, S1 is the box width of the rectifying sloping sill device, S2 is the box length of the rectifying sloping sill device, S3 is the longitudinal plane section of the box of the rectifying sloping sill device, S4 is the longitudinal slope section of the box of the rectifying sloping sill device, S5 is the longitudinal spacing between two adjacent rectifying sloping sill devices, S6 is the transverse spacing between two adjacent rectifying sloping sill devices, R c is the centerline radius of the curve. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0050] The working principle of the present invention is:

[0051] When the water flow in the bend passes through the straight channel of the riverbed inlet and enters the riverbed bend, the multiple sets of rectifying sill devices in the rectifying and energy dissipating area are equivalent to artificially raising one side of the concave bank, and balancing the centrifugal inertia force exerted on the water flow by applying lateral force to the water flow in the bend. The slanted sill structure will pick up the water flow with a longitudinal flow velocity to the convex bank, and the aquatic vegetation can intercept sediment particles and produce considerable resistance to the water flow.

[0052] Reference Figure 1-6 An adaptive rectifying sill device for use in curved urban rivers, the device is composed of four fixed rods inserted into the riverbed and a rectifying sill box with a trapezoidal longitudinal section. The box structure of the rectifying sill device 15 is divided into two layers of boxes, the inner box is a plant cultivation box 4, and the outer box is a box 5 of the rectifying sill device.

[0053] The lower part of the fixing rod inserted into the riverbed is a conical fixing rod 8 and the upper part is a fixing screw 6.

[0054] The outer layer of the rectifying inclined sill device is penetrated in the middle of the box body 5, and the inner layer of the plant cultivation box 4 is composed of a lower floating plate layer and an upper plant cultivation layer. The two ends of the plant cultivation box 4 are fixedly connected to the limit slider 25, and the limit slider 25 is limited to move up and down in the limit slide groove 26. The limit slide groove 26 is fixedly connected to the box body 5 of the rectifying inclined sill device and penetrates the upper surface of the box body 5 of the rectifying inclined sill device.

[0055] The ornamental vegetation is directly planted in the plant cultivation box 4.

[0056] The limiting slider 25 is fixedly connected to a thin rod 28 at both ends of the plant cultivation box 4, and a rope 27 is wound around the thin rod 28. The other end of the rope 27 is wound around the long rod 23 at the right end of the second motor 22. The second motor 22 is fixedly connected to the box body 5 of the rectifying inclined sill device.

[0057] It also includes: a height lifting mechanism composed of a first motor 14, a driving gear 9, a first driven gear 10, a second driven gear 11, a fixed screw 6, a first transmission screw 12, a second transmission screw 13 and a gear transmission belt 7, which is arranged in the box body 5 of the rectifying ramp device.

[0058] The height lifting mechanism is used to control the height change of the outer box structure of the rectifying inclined sill device 15 in water. The first motor 14 is arranged at the bottom of the box 5 of the rectifying inclined sill device, and the control module 3 controls the rotation of the driving shaft of the first motor 14, so that the box structure of the rectifying inclined sill device 15 can adjust the height vertically up and down.

[0059] The driving gear 9 is fixed on the driving shaft of the first motor and rotates as the driving shaft of the first motor 14 rotates. The first driven gear 10 is fixedly connected to the first transmission screw 12 and meshes with the driving gear 9. The driving gear 9 rotates to drive the first driven gear 10 to rotate, and the first driven gear 10 rotates to drive the first transmission screw 12 to rotate. The first transmission screw 12 and the second transmission screw 13 are cylindrical rods with threaded holes inside, which mesh with the fixed screw 6.

[0060] The gear transmission belt is arranged outside the driving gear 9 and the first driven gear 10 to drive the second driven gear 11 to rotate. The rotation of the second driven gear 11 drives the second transmission screw 13 to rotate.

[0061] As a preferred embodiment of the technical solution of the present invention, two sets of height lifting mechanisms are arranged at the front and rear ends of the bottom of the rectifying slant sill device along the water flow direction, and each set of height lifting mechanisms includes two fixed screws, and the two fixed screws are respectively arranged on the left and right sides of the rectifying slant sill device, and the upper part of each fixed screw is connected with one of the transmission screws, namely the first transmission screw and the second transmission screw, wherein the first transmission screw is meshed with the driving gear through the first driven gear, and the second transmission screw is synchronized with the first driven gear through the second driven gear and the gear transmission belt.

[0062] The water level information acquisition module 2, the control module 3 and the first motor 14 communicate with each other in sequence using the RS-485 serial bus standard via matching interface modules.

[0063] In the present invention, when in use, first insert the conical fixing rod 8 at the bottom of the rectifying slash device 15 into the riverbed to fix it, the longitudinal spacing S5 between two adjacent rectifying slash devices is 4 to 5 times the width S1 of the rectifying slash device box, and the transverse spacing S6 between two adjacent rectifying slash devices is 3 to 4 times the length S2 of the rectifying slash device box. The turning section of the curve is divided into a rectifying energy dissipation zone and a flow passing zone near the convex bank. The rectifying slash device 15 is arranged in the rectifying energy dissipation zone near the concave bank. The width of the rectifying energy dissipation zone is 1 / 3 to 1 / 2 of the width of the riverbed. Two groups of rectifying slash devices are arranged at equal distances in the rectifying energy dissipation zone. The angle β between the central axis of the rectifying slash device and the axis of the curve is 0° to 20°. The rectifying slash device is arranged from the connection between the straight road of the riverbed inlet and the curve to the connection between the curve and the straight road of the riverbed outlet.

[0064] The upper part of the lower floating plate 24 is a plant cultivation box 4, which can keep the plant cultivation box 4 at a water level near the water surface. When the height of the plant cultivation box 4 needs to be adjusted, information can be sent to the control module 3 to control the second motor 22, rotate the long rod 23, pull the winding rope 27, and control the plant cultivation box 4 to descend to a suitable position. When the water level changes from H1 to H2, the water level information acquisition module 2 will send the water depth information H of the center of the box structure of the rectifier sill device to the control module 3. m1 The received data is transmitted to the receiving end of the control module 3, and the water depth is calculated and processed by the control module 3, and the water depth information H of the center of the rectifier structure after adjustment is output from the output end. m2 , control the first motor drive shaft to rotate, drive the box structure of the rectifier inclined sill device 15 to adjust the height longitudinally and change the position of the box structure center of the inclined sill device from H m1 Move to H m2 .

[0065] When the water level changes from H1 to H2, the distance Δh moved by the center of the box structure of the rectifying sill device is expressed as:

[0066] Δh=Hm1 -H m2

[0067] Where: H m1 H is the center position of the box structure of the rectifying sill device before the water level changes. m2 It is the center position of the box structure of the rectifying inclined sill device after the water level changes. A positive Δh indicates that the rectifying inclined sill device moves downward in the longitudinal direction, and a negative Δh indicates that the rectifying inclined sill device moves upward in the longitudinal direction.

[0068] The distance H between the center of the box structure of the rectifying sill device and the bottom of the riverbed m , the empirical expression of the longitudinal flow velocity in the concave bank area of ​​the bend is:

[0069]

[0070] here

[0071]

[0072] H m =0.55(sinα) -0.80 H

[0073] Where: H is the riverbed depth, R c is the radius of the centerline of the bend, and D is the width of the water flow; is the average water depth of the section, R e is the water flow Reynolds number α is the inclination angle of the concave bank.

[0074] like Figure 7 As shown in Figure 1, it describes the distribution pattern of the longitudinal velocity profile of the concave bank of the bend. It can be found that in the actual bend water flow, the longitudinal velocity is m It is the maximum value, which is also the water level height at the center of the box structure of the rectifier sill device.

[0075] The expression of the angle β between the center axis of the rectifier ramp device and the axis of the curve is:

[0076]

[0077] Where: D is the width of the water flow, v is the average flow velocity of the cross section, R c is the radius of the centerline of the curve, and g is the gravity constant.

[0078] As a preferred embodiment of the device of the present invention, the control module is a PLC controller; the water level information acquisition module, the PLC controller and the first motor communicate in sequence using the RS-485 serial bus standard through a matching interface module.

[0079] As a preferred embodiment of the device of the present invention, multiple rectifying slash sill devices are arranged at the bottom of the curve, dividing the turning section of the curve into a rectifying energy dissipation zone and a flow passing zone near the convex bank, and multiple groups of rectifying slash sill devices are arranged in the rectifying energy dissipation zone near the concave bank.

[0080] The distance H between the center of the box structure of the inclined sill device and the bottom of the riverbed m

[0081] H m =0.55(sinα) -0.80 H

[0082] Where: α is the inclination angle of the concave bank, and H is the riverbed depth.

[0083] Preferably, the box structure center of the rectifying slant sill device is located at 0.8H;

[0084] Preferably, the height of the rectifier sill device box S0 = (1 / 10-1 / 5) H;

[0085] Preferably, the box width of the rectifying slash sill device S1=(1-1.5)S0;

[0086] Preferably, the length of the box of the rectifying slash sill device S2 = (2-3) S1;

[0087] Preferably, the longitudinal plane section S3 of the box body of the rectifying sill device is equal to (1 / 3 to 1 / 2) S4;

[0088] Preferably, the width of the rectifying energy dissipation zone D1=(1 / 3-1 / 2)D;

[0089] Preferably, two groups of rectifying inclined sill devices are arranged in the rectifying energy dissipation area, and the central axis of the rectifying inclined sill device is 0° to 20° with the axis of the curve;

[0090] Preferably, the rectifying slash device is arranged from the connection between the straight channel and the bend at the riverbed inlet to the connection between the bend and the straight channel at the riverbed outlet;

[0091] Preferably, the longitudinal spacing between two adjacent rectifying slant sill devices is S5 = (4-5) S1;

[0092] Preferably, the lateral spacing between two adjacent rectifying slant sill devices is S6 = (3-4) S2;

[0093] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adaptive rectifying sill device for use in urban curved rivers, comprising: The rectifying sill device is set in the rectifying energy dissipation area at the bend of the curved river channel; It is characterized in that it also includes a height adjustment mechanism, which is used to automatically adjust the water level of the rectifying sill device in the water according to the different water levels in the curved river channel, so that the rectifying sill device works at the optimal water level, and the height adjustment mechanism includes: The water level information collection module is used to collect water level and water depth information near the rectifier sill device; A height lifting mechanism is arranged between the rectifying sill device and the bottom of the riverbed; A control module, wherein a signal input end thereof is connected to the water level information acquisition module, and a signal output end thereof is connected to the height lifting mechanism.

2. The adaptive rectifying sloping sill device for urban curved rivers according to claim 1 is characterized in that: The height lifting mechanism comprises: The fixing screw rod is arranged vertically, and its bottom end is fixedly connected to the bottom of the riverbed; A transmission screw is spirally sleeved on the upper outer side of the fixed screw and is connected to the rectifying inclined sill device through a bearing, and a driven gear is coaxially fixedly connected to the outer side of the transmission screw, and the driven gear is connected to the rectifying inclined sill device through a limiting mechanism; A driving gear meshing with the driven gear, the driving gear being mounted on a driving shaft of a first motor, and the first motor being fixedly mounted on the rectifying ramp device; The first motor drives the shaft to rotate, and drives the driven gear to rotate through the driving gear. The driven gear rotates to drive the transmission screw to rotate relative to the fixed screw and move vertically along the axis of the fixed screw, thereby driving the rectifying ramp device to move up and down as a whole.

3. The adaptive rectifying sloping sill device for urban curved rivers according to claim 2 is characterized in that: Two sets of height lifting mechanisms are arranged at the front and rear ends of the bottom of the rectifying inclined sill device along the water flow direction, and each set of height lifting mechanisms includes two fixed screws, which are respectively arranged on the left and right sides of the rectifying inclined sill device, and the upper part of each fixed screw is connected with one of the transmission screws, namely the first transmission screw and the second transmission screw, wherein the first transmission screw is meshed with the driving gear through the first driven gear, and the second transmission screw is synchronously rotated with the first driven gear through the second driven gear and the gear transmission belt.

4. The adaptive rectifying sloping sill device for urban curved rivers according to claim 2 is characterized in that: The bottom end of the fixing screw is provided with a conical fixing rod inserted into the bottom of the riverbed.

5. The adaptive rectifying sloping sill device for urban curved rivers according to claim 1 is characterized in that: The rectifying slash sill device is a box body with a trapezoidal longitudinal section as a whole.

6. The adaptive rectifying sloping sill device for urban curved rivers according to claim 1 is characterized in that: Also includes: Plant cultivation box, floating on the water surface through the bottom float; A limiting mechanism, connected between the plant cultivation box and the rectifying inclined sill device, for limiting the plant cultivation box to be directly above the rectifying inclined sill device, comprises: A support frame, the bottom of which is fixedly connected to the rectifying slash sill device, and a vertically arranged limiting slide groove is provided on the support frame; The limiting slide buckle is fixedly connected to the plant cultivation box, and the limiting slide buckle is slidably connected in the limiting slide groove.

7. The adaptive rectifying sloping sill device for urban curved rivers according to claim 6 is characterized in that: Also includes: A second motor is fixedly connected to the rectifying inclined sill device, and a driving shaft of the second motor is arranged horizontally and is coaxially connected with a long rod; One end of the rope is wound around the long pole, and the other end is connected to the thin pole between the limit slide buckle and the rectifying inclined sill device. The driving shaft of the second motor drives the long pole to rotate and thus fine-tune the floating height of the plant cultivation box.

8. The adaptive rectifying sloping sill device for urban curved rivers according to claim 2 is characterized in that: The first motor is a stepping motor.

9. A working method of an adaptive rectifying sloping sill device applied to a curved river in an urban area based on any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Arrange the rectifying sill device from the connection between the straight channel and the bend at the riverbed inlet to the connection between the bend and the straight channel at the riverbed outlet; The distance H between the center of the box structure of the inclined sill device and the bottom of the riverbed m , H m =0.55(sinα) -0.80 H, Where: α is the inclination angle of the concave bank, H is the riverbed depth; S2, when the riverbed water depth near the rectifying sloping sill device changes from H1 to H2, the water level information acquisition module will be the center position of the box structure of the rectifying sloping sill device before the water level changes H m1 The data is transmitted to the receiving end of the control module, and the water depth is calculated and processed by the control module. The output end outputs the center position H of the box structure of the rectifying inclined sill device after the water level changes. m2 , control the first motor drive shaft to rotate, drive the box structure of the rectifying inclined sill device to be able to adjust the height longitudinally to change the position of the box structure center of the rectifying inclined sill device from H m1 Move to H m2 , so that the rectifying sill device can work at the optimal water level.

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