Flow impact force detection device

Abstract

The application relates to a flow impact force detection device applied to the field of hydraulic engineering, which comprises a stand column, a base at the bottom of the stand column is fixed on a riverbed through an anchor bolt, the upper end of the stand column extends above the highest water level of a river, a mounting top plate is fixed at the upper end of the stand column, a non-contact flow speed detector, a non-contact water level gauge, an audible and visual alarm and a solar power generation component are mounted on the mounting top plate, the solar power generation component is used for supplying power for the non-contact flow speed detector, the non-contact water level gauge and the audible and visual alarm, the mounting top plate is fixed in the river channel by the stand column, and the mounting top plate and various components mounted thereon are all away from the water surface, so that the non-contact flow speed detector, the non-contact water level gauge, the audible and visual alarm and the solar power generation component and other components are prevented from being continuously impacted and corroded by water flow, thereby prolonging the service life of the components; the cooperation of a rotating sheath and a curved vane can prevent water flow from directly impacting the stand column, thereby prolonging the service life of the stand column.

Description

Technical Field

[0001] This invention relates to an impact force detection device, and more particularly to a flow impact force detection device applied in the field of hydraulic engineering. Background Technology

[0002] Water flow impact force refers to the force exerted by water flow on an object. During the construction of water conservancy projects (such as dams), it is usually necessary to test the water flow impact force in order to provide a reference for the construction of water conservancy projects and to avoid damage to water conservancy projects during construction and subsequent use. The magnitude of water flow impact force is affected by multiple factors, such as water flow velocity, water density, and water flow rate (the volume of water passing through a certain cross section per unit time).

[0003] A search revealed a patent document with publication number CN218271176U disclosing a device for detecting the impact force of upstream water flow on a dam. The device comprises a support protective cylinder, a support chute, a support sliding plate, a flow velocity meter, a water inlet pipe, a mounting plate, support limiting columns, limiting plates, an arc-shaped clearance section, and a float-type water level gauge. The support protective cylinder has a rectangular cross-section. One side of the support protective cylinder is concave inward to form the support chute, while the other side bulges outward to form the arc-shaped clearance section. The length of the support chute is the same as the length of the support protective cylinder. The support chute has a rectangular structure, and limiting plates are placed on both sides of the support chute, with the length of the limiting plates being the same as the length of the support chute. This device for detecting the impact force of upstream water flow on a dam measures water level information using a float-type water level gauge and flow velocity information using a flow velocity meter. The information is then sent to a monitoring backend to calculate the impact force of the water flow on the dam, enabling continuous monitoring of the impact force of the water flow upstream of the dam.

[0004] Based on the above search and combined with existing technology, it was found that existing water flow impact force detection devices need to be installed in water bodies for use. However, in water conservancy projects, the impact force of water flow needs to be monitored for a long time. The existing detection devices have poor self-protection performance, and the long-term impact and corrosion of water flow will cause irreversible damage to the detection devices, reducing their service life. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to provide a water flow impact force detection device with strong self-protection performance and long service life.

[0006] To address the aforementioned problems, this invention provides a flow impact force detection device, comprising a column, a base at the bottom of the column fixed to the riverbed by anchor bolts, an upper end of the column extending above the highest water level of the river, and a mounting plate fixed to the upper end of the column. A non-contact flow velocity detector, a non-contact water level gauge, an audible and visual alarm, and a solar power generation module are mounted on the mounting plate. The solar power generation module powers the non-contact flow velocity detector, the non-contact water level gauge, and the audible and visual alarm.

[0007] A rotating sleeve is fitted on the column. The lower end of the rotating sleeve is rotatably connected to the column through a sealed bearing. The upper end of the rotating sleeve is rotatably connected to the column through a rotating ring. The upper end of the rotating sleeve extends to the bottom of the mounting plate and is in clearance fit with the mounting plate. The lower end of the rotating sleeve extends to the lower end of the column and is in clearance fit with the base.

[0008] Multiple curved blades are fixed around the rotating sheath. The extension direction of the multiple curved blades is deviated from the axis of the rotating sheath. The multiple curved blades are S-shaped long plates with varying curvature.

[0009] In the aforementioned flow impact force detection device, a column is used to fix the mounting plate in the river channel, ensuring that the mounting plate and all components installed on it are above the water surface. This prevents components such as the non-contact flow velocity meter, non-contact water level gauge, audible and visual alarm, and solar power generation module from being continuously impacted and corroded by the water flow, thereby extending the service life of each component. Simultaneously, the cooperation between the rotating sleeve and the curved impeller prevents the water flow from directly impacting the column, extending the column's service life. Since the curved impeller and rotating sleeve rotate with the impact of the water flow, the impact damage to the rotating sleeve and curved impeller is less. This significantly reduces the rate at which the entire device is damaged by water flow impact and corrosion, thus extending the service life of the flow impact force detection device, reducing subsequent maintenance costs, and further reducing the number of components impacted by the water flow, thereby reducing maintenance costs.

[0010] As a further supplement to this application, a reinforcing plate is fixedly embedded on the convex surface of each curved blade. The reinforcing plate is detachably fixed to the curved blade by rivets, and the curvature of the outer surface of the reinforcing plate is adapted to the surface curvature of the curved blade.

[0011] As a further supplement to this application, the curvature of the multiple curved blades on the side closer to the rotating sheath is greater than the curvature of the curved blades on the side farther from the rotating sheath.

[0012] As a further supplement to this application, a gap is formed between the inner wall of the rotating sleeve and the column, and a floating limiting member is installed in the gap between the rotating sleeve and the column. A top plate seat is formed at the bottom of the mounting top plate and fixed to the top of the column. When the floating limiting member floats up, its upper end passes through the rotating ring and engages with the top plate seat.

[0013] As a further supplement to this application, the floating limiting component includes a float located inside the rotating sleeve and movably sleeved on the column. A limiting rod is fixed at the upper end of the float, and the upper end of the limiting rod slides through the rotating ring.

[0014] The outer side of the rotating ring is fixed to the inner side of the rotating sleeve, and the rotating ring is rotatably sleeved on the column.

[0015] As a further supplement to this application, a gradient groove is provided at the bottom of the top plate seat, located between the periphery of the column and the inner side of the rotating sleeve. The gradient groove extends in an arc shape and its center coincides with the axis of the column. The extension arc of the gradient groove coincides with the rotation path of the limit rod.

[0016] As a further supplement to this application, a displacement sensor is also fixed at the bottom of the mounting plate. The displacement sensor is electrically connected to the solar power generation module and is used to detect whether the curved blades are rotating.

[0017] As a further supplement to this application, a waterproof cover is fixedly fitted at the lower end of the column, covering the base and anchor bolts. The top of the waterproof cover is clearance-fitted with the bottom of the sealed bearing and the lower end of the rotating sleeve.

[0018] In summary, by using columns to fix the mounting plate in the river channel, and ensuring that the mounting plate and all components installed on it are above the water surface, the non-contact flow velocity detector, non-contact water level gauge, audible and visual alarm, and solar power generation components are protected from continuous impact and corrosion by the water flow, thus extending the service life of each component. Simultaneously, the cooperation between the rotating sleeve and the curved impeller allows the curved impeller to rotate with the water flow impact, converting the impact force of the water flow into power consumption. This also prevents the water flow from directly impacting the column, extending the column's service life. Furthermore, because the curved impeller and rotating sleeve rotate with the water flow impact, the impact damage to the rotating sleeve and curved impeller is less, significantly reducing the rate at which the entire device is damaged by water flow impact and corrosion. This is beneficial for extending the service life of the flow impact force detection device, reducing subsequent maintenance costs, and further reducing the number of components impacted by the water flow, thus lowering maintenance costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application;

[0020] Figure 2 This is a schematic diagram showing the distribution of various components on the mounting top plate according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the column and rotating sheath structure according to an embodiment of this application;

[0022] Figure 4 This is a partial structural side sectional view of an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the float and limiting rod structure according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the curved impeller and reinforcing plate structure according to an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the top plate seat tilting axis structure according to an embodiment of this application.

[0026] Explanation of the labels in the diagram:

[0027] 1. Column; 11. Base; 12. Waterproof cover; 13. Sealed bearing; 2. Mounting top plate; 21. Top plate seat; 211. Gradient groove; 3. Non-contact flow velocity detector; 4. Non-contact water level gauge; 5. Displacement sensor; 6. Rotating sleeve; 61. Curved impeller; 62. Reinforcing plate; 63. Rivet; 7. Rotating ring; 8. Float; 81. Limiting rod; 9. Audible and visual alarm; 10. Solar power generation module. Detailed Implementation

[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0029] This invention provides a flow impact force detection device; please refer to [link / reference]. Figures 1-7 The system includes a column 1, with a base 11 at the bottom of the column 1 fixed to the riverbed by anchor bolts. The upper end of the column 1 extends above the highest water level of the river. A mounting plate 2 is fixed to the upper end of the column 1. The mounting plate 2 is equipped with a non-contact flow velocity detector 3 (e.g., a Doppler flow velocity meter, a side-scan radio wave velocity meter, etc.), a non-contact water level gauge 4 (e.g., an ultrasonic water level meter, a radar water level meter), an audible and visual alarm 9 (a commonly used audible and visual alarm in the prior art can be used), and a solar power generation module 10 (a commonly used solar power generation module in the prior art can be used). The solar power generation module 10 is used to power the non-contact flow velocity detector 3, the non-contact water level gauge 4, and the audible and visual alarm 9. The system should also include a controller, which is used to receive the flow velocity and water level information collected by the non-contact flow velocity detector 3 and the non-contact water level gauge 4, and at the same time control the audible and visual alarm 9 to issue an alarm.

[0030] It should be noted that the specific models of the non-contact flow velocity meter 3, non-contact water level gauge 4, audible and visual alarm 9, solar power generation module 10, controller, and other equipment can be selected by those skilled in the art according to actual needs. For example, the non-contact flow velocity meter 3 can be the Ridar series (such as the Ridar-800 model) side-scan radio wave velocimeter produced by Nanjing Micromax Electronic Technology Co., Ltd. At the same time, the connections between the components and the information transmission lines can be set up and implemented using conventional methods, and will not be described in detail here.

[0031] A rotating sleeve 6 is fitted on the column 1. The lower end of the rotating sleeve 6 is rotatably connected to the column 1 through a sealed bearing 13. The upper end of the rotating sleeve 6 is rotatably connected to the column 1 through a rotating ring 7. The upper end of the rotating sleeve 6 extends to the bottom of the mounting top plate 2 and is in clearance fit with the mounting top plate 2. The lower end of the rotating sleeve 6 extends to the lower end of the column 1 and is in clearance fit with the base 11.

[0032] Multiple curved blades 61 are fixed around the rotating sheath 6. The extension direction of the multiple curved blades 61 is deviated from the axis of the rotating sheath 6. The multiple curved blades 61 are all S-shaped long plates with varying curvature.

[0033] Based on the above structure, the mounting plate 2 is fixed in the river channel using the column 1, ensuring that the mounting plate 2 and all components installed on it are above the water surface. This prevents the non-contact flow velocity detector 3, non-contact water level gauge 4, audible and visual alarm 9, solar power generation module 10, and other components from being continuously impacted and corroded by the water flow, thereby extending the service life of each component. Simultaneously, the cooperation between the rotating sleeve 6 and the curved impeller 61 allows the curved impeller 61 to rotate as the water flow impacts it, thus deflecting the water flow's impact. The impact force is converted into power consumption, and the water flow can avoid directly impacting the column 1, thus extending the service life of the column 1. Since the curved impeller 61 and the rotating sleeve 6 rotate with the impact of the water flow, the impact damage of the water flow on the rotating sleeve 6 and the curved impeller 61 is less. This significantly reduces the speed at which the device as a whole is damaged by water flow impact and corrosion, which is conducive to extending the service life of the flow impact force detection device, reducing subsequent maintenance costs, and reducing the number of parts impacted by the water flow, which can further reduce the number of maintenance parts and reduce maintenance costs.

[0034] Furthermore, each curved impeller 61 has a reinforcing plate 62 fixedly embedded on its convex face facing the flow. The reinforcing plate 62 is made of a commonly used alloy material that is resistant to water flow impact and corrosion, such as duplex alloy steel (1.4664 nickel-molybdenum reinforced duplex alloy steel), aluminum alloy (5083 aluminum alloy), copper alloy, etc. Considering the actual cost and the usage environment, copper alloy is preferred in this application. Of course, those skilled in the art can use other alloy materials, metal materials, non-metal materials, composite materials, etc. in the prior art to replace it according to actual usage needs, which will not affect the implementation of this application. The reinforcing plate 62 is detachably fixed to the curved impeller 61 by rivets 63, and the curvature of the outer surface of the reinforcing plate 62 is adapted to the surface curvature of the curved impeller 61.

[0035] By setting up the reinforcing plate 62, the upstream protrusion of the curved impeller 61 is strengthened, thereby reducing the damage rate of the upstream protrusion affected by water flow, reducing the maintenance frequency, and reducing the maintenance burden on the staff.

[0036] Furthermore, the curvature of the multiple curved blades 61 on the side closer to the rotating sheath 6 is greater than the curvature of the curved blades 61 on the side farther from the rotating sheath 6, which can reduce the end force of the curved blades 61 on the side farther from the rotating sheath 6, thereby enhancing the structural strength of the curved blades 61 and further extending the service life of the curved blades 61.

[0037] Furthermore, a gap is formed between the inner wall of the rotating sleeve 6 and the column 1. A floating limiting component is installed in the gap between the rotating sleeve 6 and the column 1. A top plate seat 21 fixed to the top of the column 1 is formed at the bottom of the mounting top plate 2. When the floating limiting component floats up, its upper end passes through the rotating ring 7 and engages with the top plate seat 21.

[0038] The floating limit component includes a float 8, which is located inside the rotating sleeve 6 and movably sleeved on the column 1. A limit rod 81 is fixed at the upper end of the float 8, and the upper end of the limit rod 81 slides through the rotating ring 7.

[0039] Among them, the outer side of the rotating ring 7 is fixed to the inner side of the rotating sleeve 6, and the rotating ring 7 is rotatably sleeved on the column 1;

[0040] The bottom of the top plate seat 21 is provided with a gradient groove 211 located between the periphery of the column 1 and the inner side of the rotating sleeve 6. The gradient groove 211 extends in an arc shape and its center coincides with the axis of the column 1. The extended arc of the gradient groove 211 coincides with the rotation path of the limit rod 81.

[0041] By setting up the float 8 and the limiting rod 81, and opening a gradient groove 211 at the bottom of the top plate seat 21, when the rotating sleeve 6 is damaged or the sealing bearing 13 loses its sealing effect, causing river water to enter the rotating sleeve 6, the water level in the gap between the inner wall of the rotating sleeve 6 and the column 1 rises, causing the float 8 to float and rise, and driving the upper end of the limiting rod 81 to rise. As the rotating sleeve 6 rotates, the upper end of the rising limiting rod 81 gradually extends into the gradient groove 211 and finally locks with the gradient groove 211, causing the rotating sleeve 6 to stop rotating. Workers can judge whether the rotating sleeve 6 can play a good protective role by observing whether the rotating sleeve 6 has stopped rotating, and thus judge whether the rotating sleeve 6 or the sealing bearing 13 needs to be maintained. This helps to assist workers in carrying out maintenance work and reduces the probability of further damage to components causing more serious consequences.

[0042] Furthermore, a displacement sensor 5 is fixed at the bottom of the mounting plate 2. The displacement sensor 5 is electrically connected to the solar power generation module 10. The displacement sensor 5 is used to detect whether the curved blade 61 is rotating. The solar power generation module 10 also supplies power to the displacement sensor 5. The data collected by the displacement sensor 5 should be transmitted to the controller. By setting the displacement sensor 5, when the displacement sensor 5 detects that the curved blade 61 is rotating normally, the controller does not need to react. If the displacement sensor 5 detects that the curved blade 61 has stopped rotating, the controller controls the audible and visual alarm 9 to sound an alarm, so that the staff can be informed that the rotating sleeve 6 has lost its rotation function, and thus prompt the staff to perform timely maintenance on the flow impact force detection device.

[0043] Furthermore, a waterproof cover 12 is fixedly fitted at the lower end of the column 1. The waterproof cover 12 covers the base 11 and the anchor bolts. The top of the waterproof cover 12 is clearance-fitted with the bottom of the sealed bearing 13 and the lower end of the rotating sleeve 6. The waterproof cover 12 can reduce the probability of water flow eroding the base 11 and anchor bolts and causing them to be damaged, thus ensuring the stability of the column 1.

[0044] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A flow impact force detection device, comprising a column (1), wherein a base (11) at the bottom of the column (1) is fixed to the riverbed by anchor bolts, the upper end of the column (1) extends above the highest water level of the river, and a mounting plate (2) is fixed to the upper end of the column (1). A non-contact flow velocity detector (3), a non-contact water level gauge (4), an audible and visual alarm (9), and a solar power generation component (10) are mounted on the mounting plate (2). The solar power generation component (10) is used to power the non-contact flow velocity detector (3), the non-contact water level gauge (4), and the audible and visual alarm (9), characterized in that: A rotating sleeve (6) is fitted on the column (1). The lower end of the rotating sleeve (6) is rotatably connected to the column (1) through a sealed bearing (13). The upper end of the rotating sleeve (6) is rotatably connected to the column (1) through a rotating ring (7). The upper end of the rotating sleeve (6) extends to the bottom of the mounting top plate (2) and is in clearance fit with the mounting top plate (2). The lower end of the rotating sleeve (6) extends to the lower end of the column (1) and is in clearance fit with the base (11). A gap is formed between the inner wall of the rotating sleeve (6) and the column (1). A floating limiting member is installed in the gap between the rotating sleeve (6) and the column (1). A top plate seat (21) is formed at the bottom of the mounting top plate (2) and fixed to the top of the column (1). When the floating limiting member floats up, its upper end passes through the rotating ring (7) and engages with the top plate seat (21). The floating limiting component includes a float (8), which is located inside the rotating sleeve (6) and movably sleeved on the column (1). A limiting rod (81) is fixed at the upper end of the float (8), and the upper end of the limiting rod (81) slides through the rotating ring (7). The outer side of the rotating ring (7) is fixed to the inner side of the rotating sleeve (6), and the rotating ring (7) is rotatably sleeved on the column (1); The bottom of the top plate seat (21) is provided with a gradient groove (211) located between the periphery of the column (1) and the inner side of the rotating sleeve (6). The gradient groove (211) extends in an arc shape and its center coincides with the axis of the column (1). The extension arc of the gradient groove (211) coincides with the rotation path of the limiting rod (81). The rotating sheath (6) has multiple curved blades (61) fixed around its periphery. The extension directions of the multiple curved blades (61) are all deviated from the axis of the rotating sheath (6). The multiple curved blades (61) are all S-shaped long plates with varying curvature.

2. The flow impact force detection device according to claim 1, characterized in that: Each of the curved blades (61) has a reinforcing plate (62) fixedly embedded on its convex surface facing the airflow. The reinforcing plate (62) is detachably fixed to the curved blade (61) by means of rivets (63). The curvature of the outer surface of the reinforcing plate (62) is adapted to the curvature of the surface of the curved blade (61).

3. The flow impact force detection device according to claim 2, characterized in that: The curvature of the multiple curved blades (61) on the side closer to the rotating sleeve (6) is greater than the curvature of the curved blades (61) on the side farther from the rotating sleeve (6).

4. The flow impact force detection device according to claim 1, characterized in that: The bottom of the mounting plate (2) is also fixed with a displacement sensor (5), which is electrically connected to the solar power generation module (10). The displacement sensor (5) is used to detect whether the curved blade (61) is rotating.

5. The flow impact force detection device according to claim 1, characterized in that: The lower end of the column (1) is fixedly fitted with a waterproof cover (12), which covers the base (11) and the anchor bolt. The top of the waterproof cover (12) is fitted with the bottom of the sealed bearing (13) and the lower end of the rotating sleeve (6) with clearance.

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