Reservoir algae removal device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN SHENGRUN ENG CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-14
Smart Images
Figure CN120556436B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of algae removal technology in reservoirs, and more specifically to algae removal equipment for reservoirs. Background Technology
[0002] Reservoir algae control equipment generally includes two methods: physical algae removal and chemical algae removal. Physical algae removal refers to collecting algae from the water surface using mechanical means such as scooping. Common physical algae removal systems include a scoop net and its drive mechanism, which moves the net across the water to complete the scooping operation. Chemical algae removal refers to inhibiting or killing algae growth using algaecides. Common chemical algae removal systems generally include a water pump, a mixing tank, and a chemical supply device. The water pump draws water from the reservoir, and the chemical supply device supplies concentrated algaecides to the mixing tank. The water and concentrated algaecides are thoroughly mixed and diluted in the mixing tank before being discharged to the reservoir surface. Currently, most reservoir algae removal equipment only has either physical or chemical algae removal capabilities. While some equipment combines both functions, maintenance personnel must separately inspect and maintain the drive mechanism of the physical algae removal equipment and the water pump of the chemical algae removal equipment during downtime, resulting in long downtime and high maintenance costs. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide a reservoir algae removal device that combines physical and chemical algae removal functions, with short downtime and low maintenance cost.
[0004] To solve the above-mentioned technical problems, the reservoir algae removal equipment of the present invention includes a hull floating on the surface of the reservoir. The hull is provided with a collection chamber. The upper side wall of the collection chamber has a liquid inlet for the liquid on the surface of the reservoir to flow into the collection chamber. The hull is provided with a mixing tank and a chemical supply device. The chemical supply device supplies concentrated algae removal agent to the mixing tank. The hull is also provided with a water pump to supply water to the mixing tank to dilute the concentrated algae removal agent. The inlet end of the water pump is connected to the lower part of the collection chamber, and the outlet end is connected to the mixing tank. The mixing tank is provided with a chemical outlet pipe for discharging the algae removal agent out of the hull.
[0005] Furthermore, the waterline of the hull is located between the bottom edge and the top edge of the liquid inlet.
[0006] Furthermore, the discharge pipe is specifically a spray pipe, with its end extending to the upper side of the hull and equipped with a nozzle, spraying the pesticide onto the reservoir surface beside the hull; or
[0007] The discharge pipe is specifically a delivery pipe, with its end extending 0.5–1.5 m below the side of the hull, delivering the pesticide to the deeper waters of the reservoir outside the hull; or
[0008] The drug delivery system specifically includes a spray pipe and a delivery pipe. The end of the spray pipe extends to the upper side of the hull and is equipped with a nozzle to spray the agent onto the surface of the reservoir water on the side of the hull. The end of the delivery pipe extends 0.5 to 1.5 meters below the side of the hull to deliver the agent to the deep water of the reservoir outside the hull.
[0009] Furthermore, the hull is equipped with a microbubble generator, whose outlet pipe extends to the bottom of the hull.
[0010] Furthermore, the reagent supply device includes a reagent container and a reagent pump, with the inlet end of the reagent pump connected to the reagent container and the outlet end connected to the mixing tank.
[0011] Furthermore, the liquid outlet of the reagent pump is specifically connected to the first side of the mixing tank, and the liquid outlet of the water pump is connected to the second side of the mixing tank opposite to the first side.
[0012] Furthermore, the reagent supply device and the water pump are respectively connected to the bottom of the mixing tank, and the reagent outlet pipe is connected to the top of the mixing tank.
[0013] Furthermore, a mesh bag with its opening facing upwards is installed at the bottom of the collection chamber. The mesh bag is positioned between the liquid inlet and the inlet of the water pump and can be removed upwards to collect the algae inside the collection chamber into the bag.
[0014] Furthermore, the collection chamber opening faces upwards, allowing the mesh bag to be removed through this upward-facing opening.
[0015] Furthermore, a sliding rail is installed on the surface of the reservoir bank, and a sliding platform is installed on the sliding rail. The hull is connected to the sliding platform, and the sliding platform can be moved along the sliding rail as the water surface of the reservoir fluctuates. The hull is limited by the sliding rail and cannot drift away from the shore.
[0016] This equipment combines physical and chemical algae removal functions. A water pump draws water from the bottom of the collection chamber, creating negative pressure inside. This generates a water flow from outside to inside the collection chamber on the reservoir surface, carrying floating algae into the chamber. Since the algae mainly float on the upper part of the collection chamber, and the pump's inlet is connected to the bottom, it is difficult to pump them out, thus effectively collecting surface algae and achieving physical algae removal. Simultaneously, the pump pumps water to a mixing tank, where a concentrated algaecide supply system provides concentrated algaecide. After thorough mixing and dilution in the mixing tank, the solution is discharged from the outlet pipe to the reservoir surface, inhibiting algae growth or killing algae and achieving chemical algae removal. This equipment cleverly utilizes the water pump in chemical algae removal to guide the water flow required for physical algae removal. It does not require an additional drive mechanism specifically for physical algae removal. Therefore, during downtime maintenance, maintenance personnel mainly need to check and maintain the water pump, unlike traditional equipment which requires separate maintenance of the drive mechanism of the physical algae removal system and the water pump of the chemical algae removal system. This results in shorter downtime maintenance time and lower maintenance costs. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the algae removal equipment located on the bank of the reservoir.
[0018] Figure 2 yes Figure 1 A magnified view of a portion of the image, showing a larger area. Figure 1 Part A.
[0019] Figure 3 This is a top view of the algae removal equipment in the reservoir, mainly showing the hull.
[0020] Figure 4 yes Figure 3 BB cross-sectional view.
[0021] Figure 5 yes Figure 4 A magnified view of a portion of the image, showing a larger area. Figure 4 Part C.
[0022] Figure 6 yes Figure 3 DD sectional view.
[0023] Figure 7 This is a schematic diagram showing the water flow from outside the collection chamber to inside the collection chamber on the reservoir surface.
[0024] Figure 8 This is a diagram showing the disassembly of the mesh bag.
[0025] Figure 9 This is a schematic diagram of the collection chamber and mesh bag in other embodiments. Detailed Implementation
[0026] The present invention will be further described in detail below with reference to specific embodiments.
[0027] See reservoir algae removal equipment Figure 1 and Figure 2 The vessel includes a hull 1 floating on the reservoir surface. The front of the hull 1 has a forward-opening "C"-shaped enclosure 11, which, together with the bow wall 12, encloses a collection chamber 13 located at the front of the hull. See [link / reference]. Figure 3 and Figure 4The collection chamber 13 has its opening 130 facing upwards, and a liquid inlet 14 is opened on its front wall 131. The collection chamber 13 is divided into an upper part 133 and a lower part 134 by the bottom edge 141 of the liquid inlet 14, that is, the liquid inlet 14 is located on the front wall of the upper part 133 of the collection chamber 13. The lower part 134 of the collection chamber 13 is 0.1 to 0.35 m high, and the top edge 142 of the liquid inlet 14 is 0.25 to 0.5 m higher than the bottom edge 141. The waterline L of the hull 1 is located between the bottom edge 141 and the top edge 142 of the liquid inlet 14, and the liquid on the surface of the reservoir flows naturally into the collection chamber 13 from the liquid inlet 14. The lower part 134 of the collection chamber 13 is equipped with a net bag 2 with its opening 21 facing upwards, see Figure 5 The lower part 134 of the collection chamber 13 has a hook 135 on its wall, and the mesh bag 2 has a hanging hole 25. The hook 135 passes through the hanging hole 25, and the mesh bag 2 is thus placed in the lower part 134 of the collection chamber 13. See Figure 3 and Figure 4 The hull 1 is equipped with a water pump 3. The inlet end of the water pump 3 is connected to an inlet pipe 31, and the outlet end is connected to an outlet pipe 32. The end of the inlet pipe 31 connects to the lower part 134 of the collection chamber 13, and the end of the outlet pipe 32 leads to the outside of the collection chamber 13. (See...) Figure 2 , Figure 4 and Figure 7 The hull 1 is also equipped with a microbubble generator 4 and a controller (not shown in the figure). The microbubble generator 4 is existing technology, with its outlet pipe 41 extending into the water 0.25m below the hull 1. The controller controls the connection between the water pump 3 and the microbubble generator 4. The hull 1 is equipped with an existing first algae content detection device 51, which extends 0.1-0.3m below the hull 1 to detect the algae content in the shallow water of the reservoir. The controller is connected to the first algae content detection device 51. When the first algae content detection device 51 detects that the algae content is higher than a certain value, for example, higher than 10^6 cells / mL, the controller controls the microbubble generator 4 and the water pump 3 to start. The microbubble generator 4 generates microbubbles that attach to the algae, reducing the algae density and causing them to float to the water surface. Pump 3 draws water from the lower part 134 of the collection chamber 13 and discharges it to the outside of the collection chamber 13, creating a negative pressure inside the collection chamber 13. This generates a water flow from outside the collection chamber 13 to inside the collection chamber 13 on the surface of the reservoir, carrying algae floating on the surface into the collection chamber 13 with the water flow. Figure 7As shown in the diagram, since algae mainly float in the upper part 133 of the collection chamber 13 after entering it, and the inlet of the water pump 3 is connected to the lower part 134 of the collection chamber 13 via the inlet pipe 31, it is not easy to pump out the algae. Because a mesh bag 2 is installed in the lower part 134 of the collection chamber 13, which blocks the liquid inlet 14 between the inlet pipe 31, even if a few algae sink to the lower part 134 of the collection chamber 13, they will enter the mesh bag 2 and be trapped inside the collection chamber 13, preventing them from being pumped away by the water pump 3. This device utilizes this method to effectively collect algae from the water surface, achieving physical algae removal.
[0028] See Figure 2 and Figure 3 The hull 1 is equipped with a mixing tank 6, a concentrated agent container 71, and a agent pump 72. The concentrated agent container 71 contains a concentrated algaecide, which in this embodiment is a concentrated hydrogen peroxide solution. The agent pump 72 has an inlet pipe 721 connected to its inlet end and an outlet pipe 722 connected to its outlet end. The inlet pipe 721 is connected to the bottom of the agent container 71, and the outlet pipe 722 is connected to the left side of the bottom of the mixing tank 6. The concentrated agent container 71, agent pump 72, inlet pipe 721, and outlet pipe 722 constitute an agent supply device that supplies the concentrated algaecide to the mixing tank 6. See [link to details]. Figure 3 , Figure 4 and Figure 6The outlet pipe 32 of the water pump 3 is connected to the bottom right side of the mixing tank 6. A spray pipe 81 is connected to the top of the mixing tank 6. The spray pipe 81 has an inlet end 811 connecting to the top of the mixing tank 6 and an outlet end 812 extending to the upper left outer side of the hull 1, where a nozzle 813 is installed. A first valve 83 is installed on the spray pipe 81, and the controller controls the connection between the first valve 83 and the chemical pump 72. The first valve 83 is normally closed but can be opened by the controller. When the first valve 83 is open, the outlet pipe 32 of the water pump 3 indirectly leads to the left outer side of the hull 1 via the mixing tank 6 and the spray pipe 81. When the first algae content detection device 51 detects that the algae content in the shallow water is higher than 10^6 cells / mL, the controller simultaneously activates the microbubble generator 4 and the water pump 3, and controls the first valve 83 to open. At this time, the water pump 3 draws water from the lower part 134 of the collection chamber 13 and pumps it into the mixing tank 6 through the outlet pipe 32, thus supplying water to the mixing tank 6. Simultaneously, the controller also starts the chemical pump 72, which pumps the concentrated algaecide from the concentrated chemical container 71 into the mixing tank 6. Since the outlet of the chemical pump 72 is connected to the left side of the bottom of the mixing tank 6 via the outlet pipe 722, and the outlet of the water pump 3 is connected to the right side of the bottom of the mixing tank 6 via the outlet pipe 32, water and concentrated chemical enter the mixing tank 6 from the left and right sides respectively. The two converge inside the tank, creating localized disturbance, which helps in the initial mixing of the concentrated chemical and water. The mixing tank 6 is equipped with a stirring rod 61 and a drive motor 62. The drive motor 62 drives the stirring rod 61, which extends into the mixing tank 6. The controller controls the drive motor 62. Simultaneously with activating the microbubble generator 4 and the water pump 3, the controller also activates the drive motor 62. The drive motor 62 then drives the stirring rod 61 to agitate the water and concentrated algaecide in the mixing tank 6, ensuring thorough mixing and dilution of the concentrated algaecide. As the algaecide and water continue to enter the mixing tank 6, the liquid level gradually rises. When the liquid level exceeds the inlet 811 of the spray pipe 81, the algaecide automatically flows into the spray pipe 81 and is sprayed from the nozzle 813 at the outlet 812 onto the reservoir surface on the left outer side of the hull 1, inhibiting algae growth and achieving chemical algae removal.
[0029] See Figure 2 and Figure 3The algae removal equipment for the reservoir also includes left and right sliding rails 91 and 92, which are fixedly installed on the surface of the reservoir bank. Left and right sliding platforms 93 and 94 are slidably mounted on the left and right sliding rails 91 and 92, respectively. The hull 1 is located between the left and right sliding rails 91 and 92, and is connected to the left and right sliding platforms 93 and 94. Under the guiding action of the sliding platforms 93 and 94 and the sliding rails 91 and 92, the hull 1 can move the sliding platforms 93 and 94 along the sliding rails 91 and 92 with the fluctuations of the water surface. At the same time, due to the limitation of the sliding rails 91 and 92, the hull 1 always stays on the bank and will not drift away, facilitating inspection and maintenance by maintenance personnel. Maintenance personnel regularly inspect and perform shutdown maintenance on the equipment. In this embodiment, maintenance personnel perform inspection and shutdown maintenance every one to two weeks. Maintenance personnel first disconnect the power supply to the equipment, and then inspect the collection chamber 13. See... Figure 4 , Figure 5 and Figure 8 If algae are found to have been collected in the collection chamber 13, first extend the hook 135 out of the hanging hole 25, and then remove the old mesh bag 2 upwards through the opening 130 of the collection chamber 13. During this process, keep the opening 21 of the old mesh bag 2 facing upwards to collect the algae in the collection chamber 13 into the old mesh bag 2. After the old mesh bag 2 is removed, the maintenance personnel replace it with a new mesh bag 2, and then perform maintenance on the microbubble generator 4, water pump 3, and chemical pump 72 (see...). Figure 3 The equipment was inspected and maintained, and power was restored after maintenance. (See...) Figure 2 and Figure 3 After power is restored, the microbubble generator 4, water pump 3, and chemical pump 72 temporarily stop working, and the first algae content detection device 51 detects the algae content in the shallow water. If the algae content is below 10^6 cells / mL, the controller keeps the microbubble generator 4, water pump 3, and chemical pump 72 in a stopped state. If the algae content is still above 10^6 cells / mL, the controller restarts the microbubble generator 4, water pump 3, and chemical pump 72 to continue physical and chemical algae removal. This equipment cleverly utilizes the water pump 3 in chemical algae removal to complete the water flow guidance required for physical algae removal, eliminating the need for an additional dedicated drive mechanism for physical algae removal. Therefore, during downtime maintenance, maintenance personnel mainly inspect and maintain the water pump 3, unlike traditional equipment which requires separate maintenance of the drive mechanism of the physical algae removal system and the water pump of the chemical algae removal system. This results in shorter downtime maintenance time and lower maintenance costs.
[0030] See Figure 1 and Figure 2Most algae live in the shallow water within 0.5m below the surface, while a small portion resides in the deeper water, 0.5-2m below the surface. Algaecides sprayed on the surface are ineffective at inhibiting algae in the deeper water. Therefore, a delivery pipe 82 is connected to the top of the mixing tank 6. The delivery pipe 82 has an inlet end 821 connecting to the top of the mixing tank 6 and an outlet end 822 extending obliquely downwards and forwards to a point 0.5-1.5m below the front of the hull 1, penetrating into the deeper water of the reservoir. A second valve 84 is installed on the delivery pipe 82, and a controller connects to this second valve. The hull 1 is equipped with a second algae content detection device 52, extending 0.5-1.5m below the hull 1 to detect the algae content in the deeper water of the reservoir. The controller is connected to this second algae content detection device 52. When the second algae content detection device 52 detects that the algae content in the deep water is higher than 10^6 cells / mL, the controller controls the water pump 3 and the chemical pump 72 to start, and at the same time controls the second valve 84 to open. Then, when the liquid level in the mixing tank 6 exceeds the inlet end 821 of the chemical delivery pipe 82, the algaecide automatically flows into the chemical delivery pipe 82 and is transported through the chemical delivery pipe 82 to the deep water body 0.5 to 2m below the water surface of the reservoir to inhibit the algae in the deep water body and achieve chemical algae removal.
[0031] See Figure 2 In this embodiment, the spray pipe 81 and the delivery pipe 82 together form the outlet pipe of the mixing tank 6, allowing the algaecide in the mixing tank 6 to be discharged outside the hull 1. In other embodiments, the spray pipe 81 can be omitted, leaving only the delivery pipe 82 as the outlet pipe of the mixing tank 6; or the delivery pipe 82 can be omitted, leaving only the spray pipe 81 as the outlet pipe of the mixing tank 6.
[0032] See Figure 4 and Figure 9 In this embodiment, the collecting cavity 13 is wider at the top and narrower at the bottom, and the mesh bag 2 is correspondingly wider at the top and narrower at the bottom. In other embodiments, the collecting cavity 13 can be changed to have the same width at the top and bottom, and the mesh bag 2 can be changed to have the same width at the top and bottom.
[0033] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.
Claims
1. A reservoir algae removal device, characterized in that: The vessel, floating on the reservoir surface, has a forward-opening "C"-shaped enclosure at its bow, which, together with the bow wall, encloses a collection chamber at the front of the vessel. The collection chamber opening faces upwards, and its front wall has a liquid inlet. The collection chamber is divided into upper and lower sections by the bottom edge of the liquid inlet. The waterline of the vessel is located between the bottom and top edges of the liquid inlet. A net bag with its opening facing upwards is located in the lower part of the collection chamber, and hooks are provided on the lower wall of the chamber. The net bag has hanging holes through which the hooks are threaded. The vessel has a hanging hole; a water pump is installed on the hull, with an inlet pipe connected to the inlet end and an outlet pipe connected to the outlet end. The end of the inlet pipe connects to the lower part of the collection chamber, and the end of the outlet pipe leads to the outside of the collection chamber; the hull also has a microbubble generator and a controller. The outlet pipe of the microbubble generator extends into the water below the hull, and the controller controls the connection between the water pump and the microbubble generator; a mesh bag is placed between the liquid inlet and the inlet pipe; the hull is equipped with a mixing tank, a concentrated reagent container, and a reagent pump. The container holds a concentrated algaecide; the inlet of the agent pump is connected to an inlet pipe, and the outlet is connected to an outlet pipe. The inlet pipe connects to the bottom of the container, and the outlet pipe connects to the left side of the bottom of the mixing tank; the outlet of the water pump connects to the right side of the bottom of the mixing tank; a spray pipe is connected to the top of the mixing tank, with the inlet end connecting to the top of the mixing tank and the outlet end extending to the upper left side of the hull and equipped with a nozzle; the mixing tank is equipped with a stirring rod and a drive motor. The drive connects to the stirring rod, which extends into the mixing tank. The reservoir algae removal equipment also includes left and right slide rails, which are fixedly installed on the surface of the reservoir bank. Corresponding left and right sliding platforms are slidably installed on the left and right slide rails respectively. The hull is located between the left and right slide rails and is connected to the left and right sliding platforms respectively. A drug delivery pipe is connected to the top of the mixing tank. The first end of the drug delivery pipe is the inlet end, which connects to the top of the mixing tank, and the last end is the outlet end, which extends obliquely forward and downward to the lower front of the hull and into the deep water of the reservoir.