JP6727494B1 - Water surface cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water surface cleaning device for stably and continuously sucking water in a thin layer of water surface together with dust, dirt, and dust in a pool, an aquarium, etc. and purifying it with a filter or the like. SOLUTION: A double cylinder "suction port float" 1 having a donut-shaped air chamber in which an outer cylinder of a cylinder or a prism and an inner cylinder of a cylinder shorter than the outer cylinder are connected on the upper surface is installed in water. Cylinder-shaped or prismatic cup-shaped "suction port cup" The upper part of the cup is covered with a slight gap that can be slid, and the water near the water surface is sucked from the hole in the center of the float. To raise the water level in the suction cup. Along with this, the suction port float also rises, and the amount of inflowing water decreases. When the amount of inflow falls below the amount of suction by the pump, the water level in the suction cup again falls, and this process is repeated thereafter. Utilizing this mechanism, the suction port float is balanced at a fixed position below the water surface where the suction amount and the inflow amount are the same. [Selection diagram] Figure 1

Description

In an aquarium with an open water surface such as a spent fuel storage pool of a nuclear power plant, dust in the air floats on the water surface, obstructing the view from the water surface, and eventually settling and suspending. It becomes a waste and becomes radioactive, and it takes a lot of time and effort to clean up and handle the collected materials. Therefore, it is required to efficiently remove dust or dust floating on the water surface before settling. Further, in aquariums, general water tanks, industrial water tanks, and liquid tanks, it is considered important to effectively remove dust and dirt floating on the water surface in order to prevent suspension. The present invention relates to a water surface cleaning device having a suction port that automatically follows the water surface in order to efficiently remove dust and dirt floating on the water surface or liquid surface.

Conventionally, the removal of dust, dirt, and dust floating on the water surface and liquid surface of pools, water tanks, liquid tanks, etc. has been performed manually using a net, etc., but various devices have been devised to make this efficient. Has been done. For example, a trolley that runs underwater is equipped with a suction port for water on the surface of the water. (For example, refer to Patent Document 1.) This is for sucking dust, dust, and dirt at the same time as water on the surface of the water with a vacuum pump installed on the land from a suction port of a dolly traveling underwater, and removing it with a filter. Cannot be used if there is an installation in the pool.

There is also known a device for scooping up dust on the water surface with an endless belt-shaped mesh. (For example, refer to Patent Document 2.) It is difficult to completely remove fine dust and the like from the filter mesh belt, and there is a risk that it will be caught again in water.

In addition, a liquid surface purification device has been devised in which dust and dust on the water surface are attached to an endless water-absorbing belt immersed in water and pulled up, and squeezed in a separate tank to drop water and dust and circulate it. .. (For example, see Patent Document 3.) This device has a low purification speed, and it is difficult to remove a wide range of dust and dirt.

Also, a liquid level cleaner has been devised in which a suction port is provided on the side surface of a box body floated in a water tank, and water near the water surface is sucked in to remove dust and dirt with an internal pump and filter. (For example, refer to Patent Document 4.) In order to suck up with a pump, the suction port must be underwater, and it is inefficient to remove dust and dirt floating on the water surface.

A liquid level cleaning device having a movable suction port buried in the side surface of the pool has also been devised. (For example, refer to Patent Document 5.) It is necessary to manually adjust the height of the suction port according to the position of the water surface, and large-scale construction is required to install the device.

Also, a liquid level cleaning device has been devised in which the height of the suction port is adjusted to just below the water surface by a float inside a hollow container attached to the water tank wall. (For example, refer to Patent Document 6.) In this method, since the float link mechanism is complicated and the direction of the suction port is limited, dust, dirt, and dust gathered around the suction port of the container adhere and accumulate. Is assumed.

In addition, a water surface cleaning device having a structure in which dust and dirt on the surrounding water surface are sucked in by using a water flow falling on the water surface and filtered by a filter directly below has been devised. (For example, see Patent Document 7.) This requires a constantly flowing water flow, and cannot be applied to a calm water surface where there is no flowing water flow.

Fair Fair 7-54344 Open Utility Showa 48-52172 Published Utility Showa 52-761 Open Utility Showa 64-32711 Public utility Showa 53-29869 Published Patent Publication No. 4-198512 Public utility Heisei 4-57524

In order to remove fine dust, dirt, dust, etc. floating on the water surface or liquid surface of pools, water tanks, etc., stably suspend water with a thin layer on the water surface along with fine dust, dirt, dust, etc. The method of sucking in is efficient. However, with the previously devised device, it is not possible to collect fine dust, dirt, and dust by the method of mechanically scooping up fine dust, dirt, and dust, and the position of the suction mouth is adjusted manually by the method of embedding the suction mouth in the pool wall. However, the method of installing a hollow box with a suction port in one direction cannot remove the fine dust, dirt, and dust that adheres and accumulates around the box.

The present invention efficiently removes fine dust, dirt, and dust floating on the water surface. Therefore, the suction mouth is completely submerged so that the fine dust, dirt, and dust do not accumulate around the suction mouth, and It is a water surface cleaning device with a mechanism that automatically holds it in a fixed position below and continuously sucks and purifies water in a thin layer of the water surface.

A double cylinder "suction port float" having a donut-shaped air chamber (bottom surface is open) in which an outer cylinder of a cylinder or a prism and an inner cylinder of a cylinder shorter than the outer cylinder are connected on the upper surface was installed in water. The suction port is a cup-shaped “suction port cup” that is a column or a prism and is covered with a slight gap that can be slid. This is a structure in which the suction port float moves up and down depending on the water level in the suction port cup, and when the water inside the suction port cup is sucked by the pump connected to the bottom of the suction port cup, the water level in the suction port cup will drop. The suction port float also descends and sinks below the surface of the water. Then, water near the water surface flows into the suction cup from the hole in the center of the suction float, and raises the water level in the suction cup. Along with this, the suction port float also rises, and the amount of inflowing water decreases. When the amount of inflow falls below the amount of suction by the pump, the water level in the suction cup again falls, and this process is repeated thereafter. Using this mechanism, the water surface cleaning device has a structure in which the suction port float is balanced at a fixed position below the water surface where the suction amount and the inflow amount are the same.

By using the present invention, fine dust and dirt floating on the water surface, without accumulating fine dust around the device, and without manually adjusting the position of the suction port, fine dust and dirt, A thin layer of water on which dust floats can be sucked in and purified.

It is a whole conceptual diagram which shows an example of a stationary water surface cleaning apparatus. It is an operation principle figure of a suction opening. It is an overall conceptual diagram showing an example of a self-propelled swimming type water surface cleaning device. It is a whole conceptual diagram which shows an example of a cleaner type water surface cleaning apparatus.

FIG. 1 is an overall conceptual diagram showing an example of a stationary water surface cleaning apparatus to which the present invention is applied.

A double-cylinder suction port float 1 having a donut-shaped air chamber whose lower surface is opened is provided with a slight gap through which a suction cup 2 connected to the suction port of an inverted submersible pump 4 can slide outside. The suction cup 2 is covered with a filter 3 for filtering fine dust, dust and dirt. The suction cup and the submersible pump are fixed to the water tank wall surface via a support bracket 9. A straightening vane 6 may be attached to the upper outer surface of the suction port float 1 to make the flowing water flow a stable swirl flow. Further, in order to prevent the rotation of the suction port float and to prevent the suction port float from falling off, the retaining ring 8 of the suction port float may be loosely fitted to the detent pin 8 attached to the bracket.

In the operation principle diagram of the suction port shown in FIG. 2, before starting the submersible pump in (A), the upper part of the suction port float protrudes above the water surface of the water tank by the buoyancy of the air chamber inside. When (B) is started, the water in the suction cup is sucked downward by the submersible pump, the water level in the suction cup lowers, the suction float also descends, and the upper part is below the water surface of the water tank. Water from the water surface of the aquarium flows into the suction cup through the hole at the center of the mouth float. In the operating state of (C), the suction port float balances at a position where the amount of water sucked by the submersible pump and the amount of water flowing from the hole at the center of the suction port float become equal. When the water surface of the water tank in (D) drops, the gap between the top surface of the suction port float and the water surface of the water tank becomes smaller, and the amount of water flowing in decreases, so the water level in the suction port cup lowers, and the suction port float also lowers and sucks. The gap between the upper surface of the mouth float and the water surface of the water tank increases, and the amount of water that flows in again increases and balances with the amount of water that is sucked out by the submersible pump.

FIG. 1 shows an example of a stationary water surface cleaning device. The water on the water surface in which fine dust, dust, and dust are suspended becomes a stable swirling flow by the flow rectifying plate 6 and is automatically balanced at a position slightly below the water surface 12 of the water tank. The water flows down from the hole into the suction cup 2 as the inflow water flow 15, is removed by the filter 3 to remove dust, dirt, and is sucked by the submersible pump 4, and then becomes the discharge water flow 13 from the discharge port 5 in the water tank 11. It is discharged into the water. The suction cup 2 and the submersible pump 4 are attached to a water tank 11 by a support bracket 9. In order to prevent the suction port float 1 from rotating and to prevent the suction port float 1 from falling off, the retaining ring 7 of the suction port float is loosely fitted to the detent pin 8 attached to the support bracket. The submersible pump 4 operates via the power cord 10.

FIG. 3 shows an example of a self-propelled swimming type water surface cleaning device. The water on the water surface where fine dust, dust, and dust float is flown into the hexagonal suction cup 22 through the hole in the center of the hexagonal suction float 21 that is balanced slightly below the water surface of the aquarium 12, and the filter 23 The dust, dirt, and dust are removed by, and after being sucked by the battery-driven submersible pump 24, it is discharged from one of the propulsion discharge ports 25 that are oriented in four directions horizontally in 90 degree increments. The hexagonal suction cup 22 and the battery-powered submersible pump 24 are connected to four floats 28 containing a battery 29, and the whole is kept at a constant depth in water by the buoyancy of the float 28. In this case, when the water level in the hexagonal suction cup 22 decreases, the buoyancy increases and the entire apparatus rises, but the hexagonal suction float 21 descends to maintain a constant gap with the water surface of the water tank, and to maintain a stable and continuous water surface. Can inhale water.

Further, the on-off valve 26 is operated by remote control to open only one direction, and the entire device is moved by itself in the anti-discharging direction by the reaction force of discharging water from the propulsion discharge port 25 in that direction.

FIG. 4 shows an example of a cleaner-type water surface cleaning device. The suction cup 31 connected to the holding float 34 is covered with the suction float 31 so that fine dust, dust, and water on the surface where dust floats are automatically balanced at a position just below the aquarium water surface 12. The suction port float 31 flows down into the suction port cup 32 through the central hole, and is sucked up by the suction pump 37 placed on land via the suction port 33 and the suction hose 36. Then, after being purified by the filter 38, the water is returned from the discharge port 40 to the water through the return hose 39. Although the support rod 35 can be used to bring the suction port closer to a place where there is much dust, dirt, or dust, it is difficult to manually fix the device at a certain depth position. By automatically balancing to a position just below the water surface, it is possible to continuously and stably suck and purify dust, dirt, and dust floating on the water surface.

Used to remove fine dust, dirt and dust floating on the water surface of spent fuel storage pools and other pools of nuclear facilities and other industries, open water tanks, liquid tanks, aquarium water tanks, cages, play pools, bathtubs, etc. it can.

1. Suction mouth float
2. Suction cup
3. filter
Four. Submersible pump 5. Discharge port 6. Rectifier plate 7. Stop ring 8. Non-rotating pin 9. Support bracket 10. Power cord 11. Aquarium 12. Aquarium water surface 13. Discharge water flow 14. Water surface in the suction port 15. Inflow of water 21. Hexagon suction port float 22. Hexagonal suction cup 23. Filter 24. Battery driven submersible pump 25. Propulsion discharge port 26. Open/close valve 27. Float support plate 28. Float 29. Battery 31. Suction port float 32. Suction cup 33. Sucking mouth 34. Holding float 35. Support rod 36. Suction hose 37. Suction pump 38. Filter 39. Return hose 40. Outlet

Claims (5)

A double cylinder "suction port float" having a donut-shaped air chamber (bottom surface is open) in which a cylinder or prism outer cylinder and a cylinder inner cylinder shorter than the outer cylinder are connected at the upper surface was installed in water. The suction port is a cup-shaped “suction port cup” that is a column or a prism and is covered with a slight gap that can be slid. This is a structure in which the suction port float moves up and down depending on the water level in the suction port cup, and when the water inside the suction port cup is sucked by the pump connected to the bottom surface of the suction port cup, the water level in the suction port cup lowers. The suction port float also descends and sinks below the surface of the water. Then, water near the water surface flows into the suction cup through the hole in the center of the suction float, and the water level in the suction cup is raised. Along with this, the suction port float also rises, and the amount of inflowing water decreases. When the amount of inflow falls below the amount of suction by the pump, the water level in the suction cup again falls, and this process is repeated thereafter. Using this mechanism, the water surface cleaning device has a structure that balances the suction port float to a certain position below the water surface where the suction amount and the inflow amount are the same. A flow straightening plate is installed to make the water flow flowing into the upper and outer surfaces of the suction port float a stable swirl flow, and a detent pin and a retaining ring of the suction port float are mounted to prevent rotation and falling of the suction port float. The water surface cleaning device shown in 1. A self-propelled swimming type water surface cleaning device, in which the whole is kept at a certain depth in the water by the buoyancy of the float, even if the water level in the suction cup decreases and the buoyancy increases and the whole device floats, The water surface cleaning device according to claim 1, wherein the suction port float descends to maintain a constant gap with the water surface of the water tank and to continuously and stably suck water on the water surface. It is a self-propelled swimming type water surface cleaning device, which discharges the discharge water of the pump horizontally at 90 degree intervals from the propulsion discharge ports facing in 4 directions. The water surface cleaning device according to claim 3, wherein the water surface cleaning device has a structure in which it is opened and the entire device is automatically moved in the counter-discharging direction by a reaction force of discharging water from the propulsion-discharging port in that direction. Equipped with a suction port at the tip of a support rod that is inserted from the land to the water surface of the aquarium. A machine type water surface cleaning device, wherein the suction port float keeps a constant gap with the water surface and stably and continuously sucks water on the water surface even if the tip of the support rod slightly swings. The water surface cleaning device shown in 1.

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