A raceway surface structure for inhibiting the growth of algae organisms

By setting up protruding units and driving mechanisms in the water conveyance channel, the flow pattern of the water is changed, algae are disturbed, and ultraviolet sterilization is combined to solve the problems of water quality decline and increased maintenance costs caused by algae growth, thus achieving ecological protection and efficient water conveyance.

CN116676926BActive Publication Date: 2026-04-17NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
Filing Date
2022-08-31
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively suppress the growth of algae in water conveyance channels, leading to a decline in water quality and an increase in engineering maintenance costs. Furthermore, mechanical removal methods are inefficient and have an impact on the ecological environment.

Method used

Protruding units and a drive mechanism are installed on the inclined surface of the channel. By adjusting the angle and position of the protruding units, the flow pattern of the water is changed, disturbing the algae and causing them to fall off. Combined with ultraviolet sterilization, their growth is inhibited.

Benefits of technology

It effectively inhibits algal growth, maintains stable water quality, reduces maintenance costs, protects the ecological environment, and does not affect water delivery efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116676926B_ABST
    Figure CN116676926B_ABST
Patent Text Reader

Abstract

This invention discloses a channel surface structure for inhibiting algal growth, relating to the technical field of suppressing algal populations in water conveyance channels. It includes a channel surface protrusion unit structure for disturbing water flow, a drive mechanism for adjusting the angle of the protrusion units to improve the disturbance effect, and a tie rod mechanism connecting each protrusion unit to the drive mechanism. Multiple sets of protrusion units are spaced apart along the water flow direction on the channel slope, with each set of protrusion units parallel to each other. The drive mechanism drives two triangular plates in each protrusion unit to rotate synchronously around an axis in opposite directions via the tie rod mechanism, thereby adjusting the water flow pattern near the channel surface. This water flow disturbance causes algae with poor attachment stability to detach, reducing the algal population. This maintains the algal population on the channel surface without external human intervention, ensuring that the water in the water conveyance channel is not negatively affected by algae.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the technical field of inhibiting the number of algae in water conveyance channels, and specifically relates to a channel surface structure that inhibits the growth of algae. Background Technology

[0002] For water conveyance projects, water quality directly determines the success or failure of the project's operation. This is especially true for large-scale water conveyance projects, where water quality directly impacts the social and ecological benefits of the actual operation, significantly reducing the overall operational effectiveness. Furthermore, the ecological requirements limit effective methods for algae removal. Within water conveyance channels, temperature, light, nutrients, and pH levels are relatively stable, creating a suitable growth environment for algae. Algae exhibit rapid growth and strong environmental adaptability, but their metabolic products lower the water's pH, severely impacting water quality. If the algae population in large-scale water conveyance projects exceeds a certain threshold, it will not only disrupt the aquatic ecosystem and reduce overall water quality but also increase subsequent maintenance and filtration costs.

[0003] Because algae spread and reproduce along with water flow and are exposed to the natural environment in open channel sections, it is impossible to completely eliminate algae. Instead, their growth can only be suppressed to maintain the ecological balance of the water body. Currently, the most common methods are mechanical and manual removal. These methods not only require significant manpower and resources but are also inefficient, failing to effectively suppress algae growth. Furthermore, they can negatively impact the ecological environment and balance within the channel, increasing subsequent water body maintenance and filtration costs. Therefore, the actual effectiveness of mechanical and manual removal is not significant, and their impact on water conveyance projects remains substantial. Summary of the Invention

[0004] In response to the problem of the negative impact of algae on the water quality of existing water conveyance projects, this invention provides a channel surface structure that inhibits the growth of algae, effectively suppressing algae growth, ensuring the ecological balance within the channel and guaranteeing water supply safety, and effectively solving the negative impact of algae on the water quality of water conveyance channels.

[0005] The solution adopted by this invention to solve its technical problem is: a channel surface structure for inhibiting algal growth, comprising protruding units, a tie rod mechanism, and a drive mechanism. Multiple sets of protruding units are spaced apart along the water flow direction on the channel slope, with each set of protruding units parallel to each other. Each protruding unit includes a support column, a rotating shaft, and triangular plates. The rotating shaft is fixed to the channel surface by the support column, with its end facing the water flow direction inclined downwards and contacting the channel slope. Triangular plates are symmetrically arranged on both sides of the rotating shaft, with the acute angle of each triangular plate hinged to the rotating shaft on its adjacent side, and the acute angle of the triangular plate facing the water flow direction. The longest side contacts the channel surface. Bosses extend outwards from the triangular plates on both sides of the rotating shaft for connection to the drive mechanism via the tie rod mechanism. The drive mechanism includes a drive shaft and a fixed... The system comprises a sliding sleeve, a support rod, and a movable sleeve. In each group of protruding units along the water flow direction, a support rod is installed between adjacent protruding units. The support rod is fixed perpendicularly to the channel surface, and a fixed sliding sleeve is fixedly installed at its upper end. The drive shaft is fitted into the fixed sliding sleeve and can move within it along the water flow direction. The movable sleeves are fixedly fitted onto the drive shafts on both sides of the fixed sliding sleeves and correspond to the protruding units in each group. Each movable sleeve can move left and right along the water flow direction with the drive shaft. Mounting seats extend symmetrically from both sides of the movable sleeves. One end of the pull rod mechanism is fixedly connected to the mounting seat, and the other end is connected to the boss on the triangular plate. When the movable sleeve moves left and right along the water flow direction, the pull rod mechanism drives the two triangular plates to rotate synchronously around the axis in opposite directions.

[0006] As a preferred embodiment of the present invention, the pull rod mechanism includes a ball seat and a pull rod. Ball seats are symmetrically fixed on the protrusions of the triangular plates on both sides of each rotating shaft, and ball seats are also symmetrically fixed on the mounting seats on both sides of each movable sleeve. The two ends of the pull rod are respectively fixedly connected to the ball seats to drive the angle between the two triangular plates in each protruding unit.

[0007] As a preferred embodiment of the present invention, an ultraviolet lamp is installed in the cavity of each protruding unit for sterilization of the area.

[0008] As a preferred embodiment of the present invention, a rubber strip is fixedly attached to the longest side of the two triangular plates in each protruding unit. When the longest side of the triangular plate abuts against the inclined surface of the channel, the rubber strip will be squeezed and undergo elastic deformation.

[0009] As a preferred embodiment of the present invention, a cam mechanism is connected to the end of the drive shaft along the water flow direction to control the left and right movement of the drive shaft.

[0010] As a preferred embodiment of the present invention, the cam mechanism includes a controller, an eccentric wheel, and a connecting rod. One end of the connecting rod is connected to the end of the drive shaft, and the other end is connected to the eccentric wheel. The eccentric wheel is mounted on the controller, and the rotation of the eccentric wheel simultaneously drives the drive shaft to move left and right through the connecting rod.

[0011] As a preferred embodiment of the present invention, the triangular plates on both sides of the rotating shaft are hinged together by the rotating shaft and can rotate synchronously around the rotating shaft in opposite directions.

[0012] As a preferred embodiment of the present invention, a rotating shaft sleeve is fixed on the acute angle end of the triangular plate adjacent to the rotating shaft. The rotating shaft sleeves on the triangular plates symmetrically arranged on both sides of the rotating shaft are coaxially connected. The rotating shaft is fitted into the rotating shaft sleeve. A column is fixed on the inclined surface of the channel in a direction perpendicular to the channel surface. The column extends upward and its top end is fixed to the rotating shaft to fix the position of the protruding unit on the channel surface.

[0013] The beneficial effects of this invention are:

[0014] This invention provides a channel surface structure for inhibiting algal growth. The structure is unique and the principle is novel. By setting multiple protruding units on the channel surface, it can adjust the laminar flow state parallel to the channel surface in the vicinity, changing the slow-flow environment suitable for algal growth, inhibiting algal attachment to the channel surface, and causing less stable algae to detach through water flow disturbance, thus reducing the number of algae. Moreover, the structural design of the protruding units mainly affects the laminar flow state parallel to the channel surface, with minimal impact on the overall water flow state of the water conveyance project, ensuring the water conveyance efficiency of the project.

[0015] By using a drive mechanism to adjust the included angle between the two triangular plates in the protruding unit, the raising and lowering of the protruding unit can be controlled. This allows for coordinated startup in accordance with water conveyance requirements, ensuring water conveyance requirements are met to a greater extent while adapting to water conveyance projects with different flow rates, thereby improving the actual effect of inhibiting algal growth. By setting a cam mechanism at the end of the drive structure, a power source can be provided for the drive mechanism, enabling independent operation of the device within the local area.

[0016] This invention alters the living environment of algae through physical methods, inhibiting their growth and reproduction while protecting the ecological environment and maintaining the normal operation of water conveyance channels. This reduces the negative impact of algae on the water quality of water conveyance projects. Furthermore, without disrupting the ecological balance and natural environment within the channels, it inhibits the absorption of substances required for algae metabolism. By disturbing the water flow, nutrients in the water move with it, affecting the algae's capture of nutrients. This maintains the amount of algae on the channel surface without external human intervention, ensuring that the water in the water conveyance channels is not negatively affected by algae, and reducing the later maintenance and filtration costs of water conveyance projects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the isometric structure of the present invention.

[0018] Figure 2 This is a rear view schematic diagram of the protruding unit of the present invention connected to the driving mechanism via a tie rod mechanism.

[0019] Figure 3 This is a schematic diagram of the protrusion unit structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the rear view structure of the present invention.

[0021] Figure 5 This is the present invention. Figure 1 Schematic diagram of the AA section structure.

[0022] Figure 6 This is a schematic diagram of the tropospheric disturbance structure of the present invention.

[0023] The following are the labels in the diagram: 1. Channel surface; 2. Triangle plate; 3. Column; 4. Rotating shaft; 5. Boss; 6. Support rod; 7. Drive shaft; 8. Mounting seat; 9. Tie rod; 10. Fixed rod; 11. Fixed sliding sleeve; 12. Movable sleeve; 13. Ball seat; 14. Tie rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] like Figure 1-6 As shown, this embodiment provides a channel surface structure for inhibiting algal growth, including protruding units, a tie rod mechanism, and a drive mechanism. Multiple sets of protruding units are spaced apart along the water flow direction on the channel slope, with each set of protruding units parallel to each other. In this embodiment, for ease of description... Figure 3Two sets of protruding units are arranged parallel to each other on the channel surface 1 on each side to disturb the water flow layer. The protruding unit includes a column 3, a rotating shaft 4, and triangular plates 2. The column 3 is fixed on the inclined surface of the channel in a direction perpendicular to the channel surface 1. Triangular plates 2 are symmetrically arranged on both sides of the rotating shaft 4. A rotating shaft sleeve is fixed on the side of the triangular plate adjacent to the rotating shaft. The rotating shaft sleeves on the triangular plates symmetrically arranged on both sides of the rotating shaft 4 are coaxially connected. The rotating shaft 4 is fitted into the rotating shaft sleeve. Therefore, the triangular plates on both sides of the rotating shaft are hinged together by the rotating shaft 4 and can rotate synchronously around the rotating shaft in opposite directions. The column 3 extends upward and its top end is fixed to the hinged rotating shaft 4. The end of the rotating shaft 4 facing the water flow direction is inclined downward and abuts against the inclined surface of the channel. That is, the column 3 is fixedly installed in the cavity formed by the two triangular plates to fix the position of the protruding unit on the channel surface 1. The acute ends of the two triangular plates are connected to the rotating shaft. One side of the adjacent triangle is hinged to the pivot and can rotate around the pivot 4. The acute angle of the triangle faces the direction of water flow. A rubber strip is fixed on the longest side of each triangle. When the two triangles rotate around the pivot and the longest side comes into contact with the channel surface, the rubber strip will be squeezed and undergo elastic deformation. In addition, ultraviolet lamps are installed on the columns in the cavity of each protrusion unit to sterilize the area. Rectangular protrusions 5 extend outward from the triangle plates on both sides of the pivot and are connected to the drive mechanism through the tie rod mechanism. By setting multiple protrusion structures on the channel surface, the water flow is disturbed, the water flow state is changed, the flow layer is disturbed, and algae with poor attachment stability are detached. Moreover, the structure is relatively simple and has a significant inhibitory effect on the absorption of substances required for metabolism by algae, effectively controlling the original number of algae.

[0027] See Figure 2-5The drive mechanism is installed parallel above each group of protruding units, including a drive shaft 7, a fixed sleeve 11, a movable sleeve 12, and a support rod 6. The support rod 6 is cuboid in shape and perpendicular to the channel surface 1. A fixed seat is integrally formed at the bottom of the support rod 6 for vertical fixation to the channel surface 1. In each group of protruding units along the water flow direction, a support rod 6 is fixed perpendicularly to the channel surface 1 between two adjacent protruding units to support and stabilize the drive mechanism. A fixed sleeve 11 is fixedly installed at the upper end of each support rod 6. The drive shaft 7 is fitted into the fixed sleeve and can move along the water flow direction within the fixed sleeve. Movable sleeves 12 are also fixedly fitted on the drive shaft on both sides of the fixed sleeve, and each movable sleeve 12 corresponds to a protruding unit in each group. Mounting seats 8 extend symmetrically from both sides of each movable sleeve 12. 8 is used to connect with the tie rod mechanism. Each movable sleeve 12 can move left and right along the water flow direction with the drive shaft. It can also drive the triangular plates in the protruding unit to open and retract through the tie rod mechanism. When the drive shaft moves along the water flow direction, it can drive the movable sleeve 12 to move along the water flow direction. At the same time, the tie rod mechanism will also pull the two triangular plates in the protruding unit closer to the column 3. The included angle between them will continuously decrease. When the drive shaft moves in the opposite direction, under the action of the tie rod mechanism, the triangular plates on both sides of the shaft will continuously open, and the included angle between them will gradually increase. In this way, by adjusting the included angle between the two triangular plates, the flow velocity of water in different channels can be controlled, thereby improving the actual tropospheric disturbance operation effect, coordinating the start-up with water conveyance requirements, and effectively suppressing algae to a greater extent while ensuring water conveyance requirements.

[0028] See Figure 2 The tie rod mechanism includes a ball seat 13 and a tie rod 14. The ball seat 13 is fixed on the protrusion 5 of each triangular plate. The ball seat 13 is also fixed at the bottom of the mounting seat 8 on both sides of each movable sleeve 12. The two ends of the tie rod 14 are respectively connected. The tie rod 14 can rotate in any direction, which facilitates the pulling control of the triangular plate. It is symmetrically arranged between each protruding unit and the movable sleeve to adjust the angle between the two triangular plates in each protruding unit, so as to adapt to the flow velocity in different water conveyance projects and achieve the best turbulence effect. A cam mechanism is also connected to the end of the drive shaft to control the left and right movement of the drive shaft. The cam mechanism includes a controller, an eccentric wheel, and a linkage rod. One end of the linkage rod is connected to the end of the drive shaft, and the other end is connected to the eccentric wheel. The eccentric wheel is mounted on the controller. When the eccentric wheel starts to rotate clockwise, it can drive the drive shaft to move in the direction of water flow through the linkage rod. When the eccentric wheel works counterclockwise, it can also drive the drive shaft to move in the opposite direction of water flow through the linkage rod, thereby controlling the opening and closing of the triangular plate to achieve different flow layer disturbance effects.

[0029] In practical use, depending on the water conveyance channel setup in different water conveyance projects, the cam mechanism is activated to control the back-and-forth movement of the drive shaft. Simultaneously, the pull rod drives the triangular plates to rotate synchronously around the axis in opposite directions. The angle between the two triangular plates on each protruding unit, which is most suitable for the current channel design, is selected to disturb the water flow layer. The disturbed water flow causes algae attached to the channel surface to detach, thereby inhibiting algae growth, ensuring the ecological balance within the channel, and guaranteeing water supply safety. This solves the current problem of the negative impact of algae on the water quality of water conveyance channels and the difficulty in cleaning algae within the channels, reducing the later maintenance and filtration costs of water conveyance projects.

[0030] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A raceway surface structure for inhibiting the growth of algal organisms, characterized by, The system includes protruding units, a tie rod mechanism, and a drive mechanism. Multiple sets of protruding units are spaced at intervals along the water flow direction on the inclined surface of the channel, with each set of protruding units parallel to each other. Each protruding unit includes a support column, a rotating shaft, and triangular plates. The rotating shaft is fixed to the channel surface by the support column, with its end facing the water flow direction inclined downwards and contacting the inclined surface of the channel. Triangular plates are symmetrically arranged on both sides of the rotating shaft, with the acute angle of each triangular plate hinged to the side adjacent to the rotating shaft, and the acute angle of the triangular plate facing the water flow direction. The longest side contacts the channel surface. Bosses extend outwards from the triangular plates on both sides of the rotating shaft for connection to the drive mechanism via the tie rod mechanism. The drive mechanism includes a drive shaft, a fixed sliding sleeve, a support rod, and a movable sleeve, extending along the water flow direction. In each group of protruding units, a support rod is installed between two adjacent protruding units. The support rod is fixed perpendicularly to the channel surface, and the fixed sliding sleeve is fixedly installed at its upper end. The drive shaft is fitted into the fixed sliding sleeve and can move along the water flow direction within the fixed sliding sleeve. The movable sleeve is fixedly fitted onto the drive shaft on both sides of the fixed sliding sleeve and corresponds to the protruding unit in each group. Each movable sleeve can move left and right along the water flow direction with the drive shaft. Mounting seats extend symmetrically from both sides of the movable sleeve. One end of the pull rod mechanism is fixedly connected to the mounting seat, and the other end is connected to the boss on the triangular plate. When the movable sleeve moves left and right along the water flow direction, it will drive the two triangular plates to rotate synchronously around the axis in opposite directions through the pull rod mechanism.

2. The raceway surface structure for inhibiting growth of algal organisms according to claim 1, characterized by, The pull rod mechanism includes a ball seat and a pull rod. Ball seats are symmetrically fixed on the protrusions of the triangular plates on both sides of each rotating shaft. Ball seats are also symmetrically fixed on the mounting seats on both sides of each movable sleeve. The two ends of the pull rod are respectively fixedly connected to the ball seats to drive the angle between the two triangular plates in each protruding unit.

3. The raceway surface structure for inhibiting growth of algal organisms according to claim 1, characterized by, Each protruding unit is equipped with an ultraviolet lamp inside its cavity for sterilization of the area.

4. The raceway surface structure for inhibiting growth of algal organisms according to claim 1, characterized by, In each of the protruding units, a rubber strip is fixed to the longest side of the two triangular plates. When the longest side of the triangular plate comes into contact with the inclined surface of the channel, the rubber strip will be squeezed and undergo elastic deformation.

5. The raceway surface structure for inhibiting growth of algal organisms according to claim 1, wherein A cam mechanism is connected to the end of the drive shaft along the direction of water flow to control the left and right movement of the drive shaft.

6. The raceway surface structure for inhibiting growth of algal organisms according to claim 5, wherein The cam mechanism includes a controller, an eccentric wheel, and a connecting rod. One end of the connecting rod is connected to the end of the drive shaft, and the other end is connected to the eccentric wheel. The eccentric wheel is mounted on the controller. When the eccentric wheel rotates, it drives the drive shaft to move left and right through the connecting rod.

7. The raceway surface structure for inhibiting growth of algal organisms according to claim 1, wherein The triangular plates on both sides of the rotating shaft are hinged together by the rotating shaft and can rotate synchronously around the rotating shaft in opposite directions.

8. The raceway surface structure for inhibiting growth of algal organisms according to claim 7, characterized by, A rotating shaft sleeve is fixed on the acute angle end of the triangular plate adjacent to the rotating shaft. The rotating shaft sleeves on the triangular plates symmetrically arranged on both sides of the rotating shaft are coaxially connected. The rotating shaft is fitted into the rotating shaft sleeve. A column is fixed on the inclined surface of the channel in a direction perpendicular to the channel surface. The column extends upward and its top end is fixed to the rotating shaft to fix the position of the protruding unit on the channel surface.

Citation Information

Patent Citations

  • Hydrodynamic quick algae-removing mechanical device

    CN109796060A

  • Cyanobacterial bloom purification system

    CN211445244U