JP6842817B2 - Scum deposition suppression device - Google Patents

Description

The present invention is a device for improving the water quality of dams, lakes, water tanks, septic tanks, sewage treatment plants, etc. (closed water areas, etc.). It relates to a scum deposition suppressing device that suppresses the accumulation of scum.

In dams, lakes, water tanks, septic tanks, sewage treatment plants, etc. (closed water areas, etc.), it may be required to improve the water quality of these closed water areas, etc. In order to improve the water quality, various devices have been conventionally provided in closed water areas and the like.
As one of these various devices (conventional technique), for example, a water flow generator (see Patent Document 1) is known.

The water flow generator according to this conventional technique is configured to accelerate the fluid in the outer cylinder to generate a water flow, and the water quality is improved by exchanging water masses in a closed water area or the like using this water flow. I am trying to.

Japanese Unexamined Patent Publication No. 5-340400

The water flow generator according to the above-mentioned prior art (Patent Document 1) is configured to exchange water masses in a closed water area or the like, and is used by being fixed at a fixed place in water in any embodiment.

In closed water areas, the water level fluctuates depending on the weather and various environmental conditions. That is, the relative relationship between the water flow generator and the closed water area (for example, the relative distance to the water surface) always fluctuates. When such a fluctuation occurs, the fixed conventional water flow generator cannot effectively suppress the accumulation of scum floating on or near the water surface such as a closed water area.

Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, and has a relatively low cost and a simple configuration, such as a dam, a lake, a water tank, a septic tank, a sewage treatment plant, etc. (closed water area, etc.). In order to improve the water quality of the water, it is an object of the present invention to provide a scum deposition suppressing device that suppresses the accumulation of scum floating on or near the water surface such as a closed water area.

The first aspect of the present invention is a scum deposition suppressing device that suppresses the accumulation of scum, and is a depth adjusting unit that adjusts the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. And a fluid supply unit that supplies fluid to the water flow generation unit, and when the position of the water flow generation unit is moved by the depth adjusting unit, the movement of at least one of the water flow generation unit and the fluid supply unit is performed. It is characterized by being provided with an operation assisting part that functions to assist the operation.
More specifically, the present invention is a scum deposition suppressing device that suppresses the accumulation of scum, and has a depth for adjusting the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. The depth adjusting unit is provided with an adjusting unit and a fluid supply unit that supplies a fluid to the water flow generating unit, and the depth adjusting unit is configured by using a float portion fixed to the water flow generating unit. When moving the position of the water flow generation unit, an operation assisting unit that functions to assist the movement of at least one of the water flow generation unit and the fluid supply unit is provided, and the water flow generation unit is an outer cylinder. A portion and a nozzle portion provided with a nozzle tip portion serving as a fluid ejection port in the outer cylinder portion are used, and the fluid supply portion is connected to the nozzle portion to supply fluid to the nozzle portion. By ejecting a fluid from the tip of the nozzle, a water flow is generated in the horizontal direction at the downstream opening of the outer cylinder portion, and the operation assisting portion includes a connecting support portion, an annular support portion, and the like. And a pipe support portion, and the pipe support portion is configured by fixing the upper end portion and any portion in the vicinity thereof to the floor surface of the underdrain in a state where the fluid supply portion is inserted therein. The connecting support portion and the annular support portion are integrally formed, the annular support portion is configured to be slidable on the outside of the pipe support portion, and the connecting support portion is formed with the annular support portion. It is characterized in that it is configured to connect with the float portion.

As described above, the scum deposition suppressing device according to the first aspect of the present invention is configured by using the water flow generation unit, the depth adjusting unit, the fluid supply unit, the operation assisting unit, and the like.
According to the scum deposition suppressing device configured in this way, the position of the water flow generating portion in the depth direction is adjusted by the depth adjusting portion, so that the scum generation position and the generation amount due to the water level are generated. Depending on the situation, the water flow generating portion can be moved to an appropriate place. Further, according to the scum deposition suppressing device configured in this way, since the operation assisting portion is provided, the depth adjustment of the water flow generating portion by the depth adjusting portion can be smoothly and effectively performed. it can.

A second aspect of the present invention is a scum deposition suppressing device that suppresses the accumulation of scum, and is a depth adjusting unit that adjusts the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. And a fluid supply unit that supplies fluid to the water flow generation unit, the depth adjusting unit is configured by using a float unit fixed to the water flow generation unit, and the fluid supply unit is a fluid supply source. It is configured by using the fluid supply pipe portion connected to the water flow generating portion and when the position of the water flow generating portion is moved by the float portion forming the depth adjusting portion, the water flow generating portion and the fluid supply pipe portion are used. It is characterized in that an operation assisting portion that functions to assist at least one movement is provided.
More specifically, the present invention is a scum deposition suppressing device that suppresses the accumulation of scum, and has a depth for adjusting the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. The depth adjusting unit is provided with an adjusting unit and a fluid supply unit that supplies a fluid to the water flow generating unit, and the depth adjusting unit is configured by using a float portion fixed to the water flow generating unit. When the position of the water flow generating portion is moved by the float portion forming the above, an operation assisting portion that functions to assist the movement of at least one of the water flow generating portion and the fluid supply portion is provided, and the water flow generating portion is provided. The portion is configured by using an outer cylinder portion and a nozzle portion provided with a nozzle tip portion serving as a fluid ejection port in the outer cylinder portion, and the fluid supply portion is connected to the nozzle portion to form the nozzle portion. By supplying a fluid to the nozzle and ejecting the fluid from the tip of the nozzle, a water flow is generated in the horizontal direction at the downstream opening of the outer cylinder portion, and the operation assisting portion is a pair of lower rails. It is composed of a support part, a pair of upper rail support parts, and a pair of inclined rail parts, and the lower rail support part and the upper rail support part are each above in the vicinity of an opening formed on the floor surface of the underdrain. The end portion is fixed, and the inclined rail portion is provided so as to be fixed to the lower end portion of the lower rail support portion and the lower end portion of the upper rail support portion, and the water flow generating portion is a pair of the above. It is provided between the inclined rail portions, and is characterized in that it is configured to be slidable up and down between the pair of inclined rail portions.

As described above, the scum deposition suppressing device according to the second aspect of the present invention is configured by using the water flow generation unit, the depth adjusting unit, the fluid supply unit, the operation assisting unit, and the like, and has the depth. The adjusting portion is configured by using a float portion fixed to the water flow generating portion.
According to the scum deposition suppressing device configured in this way, since the float portion is fixed to the water flow generating portion, the position of the water flow generating portion is determined by the float portion even when the water level fluctuates. Is maintained at a given depth. That is, according to the scum deposition suppressing device according to the present invention, the position of the water flow generating portion in the depth direction is adjusted by the float portion forming the depth adjusting portion, so that the scum generation position due to the water level and the position of scum generation are adjusted. The water flow generating portion can be moved to an appropriate place according to the generation state such as the amount of generation. Further, according to the scum deposition suppressing device configured as described above, since the operation assisting portion is provided as in the first aspect, the depth adjustment of the water flow generating portion by the depth adjusting portion is smooth. And it can be done effectively.

A third aspect of the present invention is a scum accumulation suppressing device that suppresses the accumulation of scum, and is a depth adjusting unit that adjusts the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. And a fluid supply unit that supplies fluid to the water flow generation unit, the depth adjusting unit is configured by using a float unit fixed to the water flow generation unit, and the fluid supply unit is a fluid supply source. It is configured by using the fluid supply pipe portion connected to the water flow generating portion and when the position of the water flow generating portion is moved by the float portion forming the depth adjusting portion, the water flow generating portion and the fluid supply pipe portion are used. It is characterized in that an operation assisting portion that functions to assist at least one movement is provided.
More specifically, the present invention is a scum accumulation suppressing device that suppresses the accumulation of scum, and has a depth for adjusting the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. An adjusting unit and a fluid supply unit that supplies a fluid to the water flow generating unit are provided, and when the position of the water flow generating unit is moved by the depth adjusting unit, at least one of the water flow generating unit and the fluid supply unit is provided. An operation assisting portion that functions to assist the movement of the fluid is provided, and the water flow generating portion uses an outer cylinder portion and a nozzle portion provided with a nozzle tip portion that is a fluid ejection port in the outer cylinder portion. The fluid supply unit is connected to the nozzle unit, and by supplying the fluid to the nozzle unit and ejecting the fluid from the nozzle tip portion, the fluid is ejected from the nozzle tip portion in the horizontal direction at the downstream opening of the outer cylinder portion. The operation assisting unit is configured by using a vertical movement drive unit, the vertical movement drive unit is configured by using a downward drive shaft and an upward support shaft, and the downward drive shaft is configured to generate a water flow. Is configured to slide up and down by rotating the shaft, the upper support shaft is provided with a rotation mechanism inside, the lower drive shaft is provided inside the upper support shaft, and the rotation of the upper support shaft is provided. The lower drive shaft is configured to move up and down in the upper support shaft by rotating the mechanical structure portion, and the lower end portion of the lower drive shaft forming the vertical movement drive portion is the water flow generating portion. The upper end of the upper support shaft, which is fixed to the upper surface of the culvert and forms the vertical movement drive unit, is fixedly attached to the floor surface of the underdrain.

A fourth aspect of the present invention is the scum deposition suppressing device according to any one of the first to third aspects described above, wherein the distance between the water surface side end of the opening of the water flow generating portion and the water surface is 30 mm to 500 mm. It is preferable that the depth of the water flow generating portion is adjusted by using the depth adjusting portion so as to be within the range. Further, in the scum deposition suppressing device according to the present invention, the distance between the water surface side end portion of the opening of the water flow generating portion and the water surface is more preferably in the range of 50 mm to 100 mm.

As a result of diligent research, the inventors of this case have determined that in order to effectively destroy the accumulated scum, the water surface side end of the water flow generation part (the upper part of the water flow outlet of the water flow generation part) and the water surface We found that the interval (distance between water surfaces) is very important. Specifically, the distance between the water surface side end of the opening of the water flow generating portion and the water surface (distance between water surfaces) is preferably in the range of 30 mm to 500 mm, and the water surface of the opening of the water flow generating portion. It has been found that the distance between the side end portion and the water surface (distance between water surfaces) is more preferably in the range of 50 mm to 100 mm.

When the distance between the water surface side end of the opening of the water flow generating portion and the water surface is within a preferable range (30 mm to 500 mm), this preferable distance between the water surfaces is set for a floating scum having a thickness of about 1000 mm. By using the water flow generating portion, the floating scum thickness can be suppressed to about 100 mm. Further, when the distance between the water surface side end of the opening of the water flow generating portion and the water surface is in a more preferable range (50 mm to 100 mm), the distance between the water surfaces is more preferable with respect to a floating scum having a thickness of about 1000 mm. By using the water flow generating portion set at a distance, almost all of the floating scum can be collapsed and washed away so that the water surface can be seen.

A fifth aspect of the present invention is a scum deposition suppressing device that suppresses the accumulation of scum, and is a depth adjusting unit that adjusts the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. And a fluid supply unit that supplies fluid to the water flow generation unit, the depth adjusting unit is configured by using a float unit fixed to the water flow generation unit, and the fluid supply unit is a fluid supply source. When the position of the water flow generating portion is moved by the float portion forming the depth adjusting portion, the fluid supply pipe portion connected to the water flow generating portion and the fluid supply pipe portion are used. An operation assisting portion that functions to assist at least one movement is provided, and the actuation assisting portion is slidably provided on the pipe support portion through which the fluid supply pipe portion is inserted and the outside of the pipe support portion. It is characterized in that it is configured by using the formed annular support portion and the connecting support portion in which the float portion and the annular support portion are connected.

A sixth aspect of the present invention is a scum deposition suppressing device that suppresses the accumulation of scum, and is a depth adjusting unit that adjusts the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. And a fluid supply unit that supplies fluid to the water flow generation unit, the depth adjusting unit is configured by using a float unit fixed to the water flow generation unit, and the fluid supply unit is a fluid supply source. When the position of the water flow generating part is moved by the float part forming the depth adjusting part, the fluid supply pipe part connected to the water flow generating part and the fluid supply pipe part are used. An operation assisting part that functions to assist at least one movement is provided, and the fluid supply pipe part uses a telescopic pipe (a telescopic pipe having a telescopic pipe inner cylinder part inside the telescopic pipe outer cylinder part). The operation assisting portion connects the annular support portion slidably provided on the outside of the telescopic pipe outer cylinder portion forming the telescopic pipe, and the float portion and the annular support portion. It is characterized in that it is configured by using a connecting support portion.

A seventh aspect of the present invention is a scum accumulation suppressing device that suppresses the accumulation of scum, and is a depth adjusting unit that adjusts the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. And a fluid supply unit that supplies fluid to the water flow generation unit, the depth adjusting unit is configured by using a float unit fixed to the water flow generation unit, and the fluid supply unit is a fluid supply source. When the position of the water flow generating portion is moved by the float portion forming the depth adjusting portion, the fluid supply pipe portion connected to the water flow generating portion and the fluid supply pipe portion are used. An operation assisting portion that functions to assist at least one movement is provided, and the actuating assisting portion is an inclined rail portion provided with a slidable water flow generating portion, and a rail for fixing the inclined rail portion. It is characterized in that it is configured by using a support portion (lower rail support portion and upper rail support portion).

An eighth aspect of the present invention is a scum deposition suppressing device that suppresses the accumulation of scum, and is a depth adjusting unit that adjusts the positions of a water flow generating portion provided in water and the water flow generating portion to a predetermined depth. And a fluid supply unit that supplies fluid to the water flow generation unit, and when the position of the water flow generation unit is moved by the depth adjusting unit, the movement of at least one of the water flow generation unit and the fluid supply unit is performed. An operation assisting unit is provided, and the depth adjusting unit is a water level sensor unit, an operation assisting unit, and a control unit in which these water level sensor units and the operation assisting unit are electrically connected. The operation assisting unit is configured by using a vertical movement drive unit that moves up and down based on a signal from the control unit, and the operation assisting unit and the water flow generating unit are connected to each other. It is characterized by being.

Further, the water flow generating portion forming the scum deposition suppressing device according to the present invention described above is configured by using an outer cylinder portion and a nozzle portion provided with a nozzle tip portion serving as a fluid ejection port in the outer cylinder portion. A fluid supply pipe portion connected to a fluid supply source is connected to the nozzle portion (the pipe connection portion), and by supplying the fluid to the nozzle portion and ejecting the fluid from the nozzle tip portion. , The water flow (jet water flow) is configured to be generated at the downstream opening (water flow outlet) of the water flow generation part.

Further, in the scum deposition suppressing device (scum deposition suppressing device having a float portion) according to the present invention described above, it is preferable that the upper surface of the float portion protrudes from the water surface by about 30 mm to 80 mm.
According to this preferable configuration, it is possible to prevent scum from entering the upper part of the water flow generating portion (the outer cylinder portion forming the water flow generating portion), which is a place where the flow velocity becomes slow, and to prevent the scum from entering the upper position of the outer cylinder portion forming the water flow generating portion and its vicinity. Accumulation can be suppressed.

According to the present invention, in order to improve the water quality of dams, lakes, water tanks, septic tanks, sewage treatment plants, etc. (closed water areas, etc.) with a relatively low cost and simple configuration, the water surface of closed water areas, etc. and its vicinity It is possible to obtain a scum deposition suppressing device that suppresses the deposition of floating scum.

It shows the schematic diagram of the scum deposition suppression apparatus and its installation state which concerns on 1st Embodiment of this invention. A schematic configuration diagram of the scum deposition suppressing device according to the first embodiment of the present invention is shown, FIG. 2A is a schematic side view of the scum deposition suppressing device according to the present embodiment, and FIG. 2B is a schematic side view. FIG. 2A is a schematic top view of FIG. 2A in the direction of the arrow line AA. FIG. 3A shows a schematic configuration diagram of a water flow generating part and a float part forming the scum deposition suppressing device according to the first embodiment of the present invention, and FIG. 3A shows the water flow generating part and the float part according to the present embodiment. A schematic side view, FIG. 3 (b) is a schematic front view in the direction of arrow BB in FIG. 3 (a), and FIG. 3 (c) is a schematic bottom view in the direction of arrow CC in FIG. 3 (a). Partially broken part diagram). A schematic view (schematic side view) of the operating state of the scum deposition suppressing device according to the first embodiment of the present invention is shown, and FIG. 4 (a) shows the operating state of the scum deposition suppressing device when the water level rises. A schematic view, FIG. 4B, is a schematic view of the operating state of the scum deposition suppressing device when the water level drops. It shows the schematic diagram of the scum deposition suppression apparatus and its installation state which concerns on the 2nd Embodiment of this invention. A schematic configuration diagram (including a schematic diagram of an operating state) of the scum deposition suppressing device according to the second embodiment of the present invention is shown, and FIG. 6A is a schematic diagram of the scum deposition suppressing device when the water level rises. A side view, FIG. 6 (b) is a schematic side view of the scum deposition suppressing device when the water level drops, and FIG. 6 (c) is a schematic top view of the arrow line of sight AA direction of FIG. 6 (a). It shows the schematic diagram of the scum deposition suppression apparatus and its installation state which concerns on the 3rd Embodiment of this invention. FIG. 8A shows a schematic configuration diagram (including a schematic diagram of an operating state) of the scum deposition suppressing device according to the third embodiment of the present invention, and FIG. 8A is a schematic diagram of the scum deposition suppressing device when the water level rises. A side view, FIG. 8 (b) is a schematic side view of the scum deposition suppressing device when the water level drops, and FIG. 8 (c) is a schematic top view of the arrow line of sight AA direction of FIG. 8 (a). It shows the schematic diagram of the scum deposition suppression apparatus and its installation state which concerns on 4th Embodiment of this invention. FIG. 10A shows a schematic configuration diagram (including a schematic diagram of an operating state) of the scum deposition suppressing device according to the fourth embodiment of the present invention, and FIG. 10A is a schematic diagram of the scum deposition suppressing device when the water level rises. A side view, FIG. 10B is a schematic side view of the scum deposition suppressing device when the water level drops.

Hereinafter, the scum deposition suppressing device according to the embodiment of the present invention will be described with reference to the drawings. Further, in the following, a case where the scum deposition suppressing device according to each embodiment is installed in the underdrain (for example, in the first sedimentation basin in the sewage treatment plant) will be described. The scum accumulation suppressing device according to each of the present embodiments is configured to effectively suppress the accumulation of scum floating on or near the water surface of the first sedimentation basin or the like. Specifically, the scum deposition suppressing device according to each embodiment is configured to destroy and flush the scum by using the water flow ejected from the water flow generating portion forming the scum deposition suppressing device.

<First Embodiment>
FIG. 1 shows a schematic view of a scum deposition suppressing device and an installed state thereof according to the first embodiment of the present invention. Further, FIG. 2 shows a schematic configuration diagram of the scum deposition suppressing device according to the first embodiment of the present invention, and FIG. 2A is a schematic side view of the scum deposition suppressing device according to the present embodiment. FIG. 2B is a schematic top view of FIG. 2A in the direction of the arrow line AA. Further, FIG. 3 shows a schematic configuration diagram of a water flow generating portion and a float portion forming the scum deposition suppressing device according to the first embodiment of the present invention, and FIG. 3A shows a water flow according to the present embodiment. Schematic side view of the generating part and the float part, FIG. 3 (b) is a schematic front view in the direction of the arrow line BB of FIG. 3 (a), and FIG. 3 (c) is the line of sight CC of FIG. 3 (a). It is a schematic bottom view (partially broken part view) of a direction. Further, FIG. 4 shows a schematic view (schematic side view) of the operating state of the scum deposition suppressing device according to the first embodiment of the present invention, and FIG. 4A shows a scum when the water level rises. Schematic diagram of the operating state of the sedimentation suppressing device, FIG. 4B is a schematic diagram of the operating state of the scum deposition suppressing device when the water level drops.
Hereinafter, the scum deposition suppressing device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4.

As shown in FIG. 1 and the like, in the present embodiment, the case where the scum deposition suppressing device 1 is installed in the underdrain UD (for example, in the first settling basin in the sewage treatment plant) will be described. The scum deposition suppressing device 1 according to the present embodiment is configured to have a size that allows it to be carried into the underdrain UD and installed through the opening UD2 formed on the floor surface UD1 of the underdrain UD.

As shown in FIG. 1 and the like, the scum deposition suppressing device 1 according to the present embodiment includes a water flow generating section 10, a float section 40 (corresponding to the “depth adjusting section” of the present invention), and a fluid supply hose section 50 (the present invention). (Corresponding to the "fluid supply pipe portion"), and the operation assisting portion 60 and the like.

More specifically, the scum deposition suppressing device 1 according to the present embodiment has a water flow generating unit 10 provided in water and a water flow generating unit 10 in order to adjust the positions of the water flow generating unit 10 to a predetermined depth. A float unit 40 fixedly provided at an upper position of the water flow unit 40, a fluid supply hose unit 50 connected to a fluid supply source to supply a fluid as driving water to the water flow generation unit 10, and a water flow generation unit 40. When the position of the portion 10 is moved, the water flow generating portion 10 and the operation assisting portion 60 that functions to assist the movement of the fluid supply hose portion 50 are used.

As shown in FIG. 3, the water flow generating section 10 constituting the scum deposition suppressing device 1 according to the present embodiment is configured by using the outer cylinder section 11 and the nozzle section 12. In the present embodiment, two nozzle portions 12 are provided for one outer cylinder portion 11, but the present invention is not limited to this, and one or one for one outer cylinder portion, if necessary. Three or more nozzle portions may be provided.

As will be described later, the outer cylinder portion 11 forming the water flow generation portion 10 according to the present embodiment has a water flow ejected from its downstream opening (water flow outlet 11A) by the driving water ejected from the nozzle portion 12, and is upstream thereof. The fluid is introduced from the opening (fluid introduction port 11B).

In the nozzle portion 12 forming the water flow generating portion 10 according to the present embodiment, the tip portion (nozzle tip portion 12A) is located inside the outer cylinder portion 11, and the rear end portion (pipe connection portion 12B) is the outer cylinder portion 11. It is configured to be connected to the fluid supply hose portion 50 outside the above.

As shown in the partially broken bottom view of FIG. 3C, the nozzle portion 12 forming the water flow generating portion 10 according to the present embodiment has a state in which the nozzle tip portion 12A is tilted by a predetermined angle from the inner surface of the outer cylinder portion 11. Therefore, it is provided so as to face the downstream opening (water flow outlet 11A) side of the outer cylinder portion 11. Further, the pipe connecting portion 12B forming the nozzle portion 12 is configured to be connectable to the fluid supply hose portion 50 outside the outer cylinder portion 11, and the diameter of the pipe connecting portion 12B is the diameter of the nozzle tip portion 12A. It is formed to be about twice the diameter. That is, the area ratio between the nozzle tip portion 12A and the pipe connecting portion 12B is set to about 1: 4.

The water flow generating unit 10 forming the scum deposition suppressing device 1 according to the present embodiment is configured as described above, and if necessary, driving water (the present embodiment) from the fluid supply source via the fluid supply hose unit 50. In the form, first, sewage in the sedimentation pond, etc.) is supplied to the nozzle portion 12 of the water flow generation portion 10.

When the driving water is supplied to the nozzle portion 12, the driving water is ejected from the nozzle tip portion 12 to the downstream opening side of the outer cylinder portion 11 via the pipe connecting portion 12B, and the energy of the ejected driving water causes the driving water to be ejected. The fluid in the vicinity of the upstream opening of the outer cylinder portion 11 forming the water flow generation portion 10 is introduced into the outer cylinder portion 11. That is, in the water flow generating portion 10 according to the present embodiment, the driving water is ejected from the nozzle tip portion 12A, so that the fluid in the vicinity thereof is introduced into the outer cylinder portion 11 from the fluid introduction port 11B, and this is introduced. The fluid and the driving water are merged, and the merged fluid (fluid taken by the driving water and the driving water) is ejected from the water flow outlet 11A which is the downstream opening of the outer cylinder portion. .. That is, according to the water flow generation unit 10 according to the present embodiment, a large amount of fluid can be generated by ejecting the driving water from the nozzle tip portion 12A, and this large amount of fluid can be ejected from the water flow outlet 11A. ..

The float portion 40 constituting the scum deposition suppressing device 1 according to the present embodiment is configured to obtain a desired water level. For example, the float portion 40 is formed as a substantially rectangular parallelepiped having a thickness of 200 mm or more by using expanded polystyrene (expanded polystyrene), FRP (fiber reinforced plastic), polyethylene, polypropylene and the like. More specifically, for example, the float portion 40 is formed by filling Styrofoam into an FRP formed in a substantially rectangular parallelepiped. However, as will be described later, when the float portion 40 is joined to the water flow generating portion 10, the joint surface of the float portion 40 with the water flow generating portion 10 is appropriately corresponding to the outer shape of the water flow generating portion 10. It is formed by adjusting.

Further, in the present embodiment, the float portion 40 is fixedly provided at a position above the water flow generating portion 10. Specifically, the water flow generating portion 10 and the float portion 40 are provided so as to be in close contact with each other. That is, in the present embodiment, the joint surface of the float portion 40 with the water flow generating portion 10 is formed in a curved shape corresponding to the outer shape of the water flow generating portion 10 (see FIG. 3B). .. In addition, the widths of the water flow generating portion 10 and the float portion 40 are formed to have substantially the same dimensions so that the scum does not pass between the water flow generating portion 10 and the float portion 40.

The fluid supply hose portion 50 constituting the scum deposition suppressing device 1 according to the present embodiment is configured to have flexibility, and is configured by using, for example, a rubber hose, a vinyl chloride resin hose, or the like.

One end of the fluid supply hose portion 50 according to the present embodiment is connected to the fluid supply source, and the other end is connected to the pipe connection portion 12B of the nozzle portion 12. Further, as will be described later, the fluid supply hose portion 50 is provided so as to pass through the inside of the pipe support portion 65.

As shown in FIG. 2 and the like, the operation assisting portion 60 constituting the scum deposition suppressing device 1 according to the present embodiment is configured by using the connecting support portion 61, the annular support portion 62, the pipe support portion 65, and the like. ..

The pipe support portion 65 forming the operation assisting portion 60 is configured by fixing the upper end portion of the fluid supply hose portion 50 and any portion in the vicinity thereof to the floor surface UD1 of the underdrain UD in a state where the fluid supply hose portion 50 is inserted therein. ing. Further, the connecting support portion 61 and the annular support portion 62 forming the operation assisting portion 60 are integrally configured (see FIG. 2B), and the annular support portion 62 is outside the respective pipe support portions 65. The connecting support portion 61 is configured to connect the annular support portion 62 and the float portion 40 so as to be slidable.

The scum deposition suppressing device 1 according to the present embodiment is configured as described above, and the specific configuration thereof is as shown in FIGS. 1 to 3, and the like. Hereinafter, the configuration and operation / effect of the scum deposition suppressing device 1 according to the present embodiment will be described with reference to the drawings.

The scum accumulation suppressing device 1 according to the present embodiment is a device that suppresses the accumulation of scum FS, and is a depth that adjusts the positions of the water flow generating section 10 and the water flow generating section 10 provided in water to a predetermined depth. A hose adjusting unit and a fluid supply unit that supplies a fluid to the water flow generation unit 10 are provided. The depth adjustment unit is configured by using a float unit 40 fixed to the water flow generation unit 10, and the fluid supply unit is a fluid. It is configured by using the fluid supply hose section 50 connected to the supply source, and when the position of the water flow generating section 10 is moved by the float section 40 forming the depth adjusting section, the water flow generating section 10 and the fluid supply hose section are used. An operation assisting portion 60 that functions to assist the movement of at least one of the 50s is provided, and the actuating assisting portion 60 slides the pipe support portion 65 through which the fluid supply hose portion 50 is inserted and the outside of the pipe support portion 65. It is configured by using an annular support portion 62 that is movably provided, and a connecting support portion 61 that connects the float portion 40 and the annular support portion 62.

The scum deposition suppressing device 1 according to the present embodiment is configured as described above, and the buoyancy of the float portion 40 is the distance between the water surface side end portion 11S of the outer cylinder portion 11 forming the water flow generating portion 10 and the water surface WS. (Distance between water surfaces z) is set to be a preferable range (30 mm to 500 mm) or a more preferable range (50 mm to 100 mm). That is, in the scum deposition suppressing device 1 according to the present embodiment, the water surface distance z is a preferable range (or a more preferable range) in consideration of the balance between the total weight of the scum deposition suppressing device 1 and the buoyancy of the float portion 40. It is configured to be.

As a result of diligent research, the inventors of this case ejected a fluid into the accumulated scum FS, and in order to effectively destroy or flush the scum FS, the outer cylinder portion forming the water flow generating portion 10 is formed. It has been found that the distance between the water surface side end portion 11S of 11 and the water surface (distance between water surfaces z) is very important. Then, it was found that the distance z between the water surfaces is preferably in the range of 30 mm to 500 mm, and more preferably in the range of 50 mm to 100 mm.

Since the scum deposition suppressing device 1 according to the present embodiment is provided with the float portion 40 as described above, the distance between the water surfaces z is even when the water level of the fluid (sewage or the like) in the underdrain UD fluctuates. Is maintained within a predetermined range. That is, according to the present embodiment, the distance z between the water surfaces is high regardless of whether the water level rises (see FIG. 4A) or falls (see FIG. 4B). Since it is maintained, the scum FS can be effectively destroyed and swept away by the fluid ejected from the water flow generating unit 10.

Further, in the scum deposition suppressing device 1 according to the present embodiment, it is preferable that the upper surface of the float portion 40 protrudes above the water surface by about 30 mm to 80 mm.
According to this preferable configuration, scum intrusion into the upper part of the water flow generating portion 10 (forming the outer cylinder portion 11), which is a place where the flow velocity becomes slow, is prevented, and scum is deposited at the position above the outer cylinder portion 11 and in the vicinity thereof. It can be suppressed.

Since the scum deposition suppressing device 1 according to the present embodiment is configured and functions as described above, according to the present embodiment, a dam, a lake, a water tank, a septic tank, and a sewage treatment can be carried out with a relatively low cost and a simple configuration. In order to improve the water quality of a field or the like (closed water area or the like), it is possible to obtain a scum deposition suppressing device that suppresses the accumulation of scum FS floating on or near the water surface of the closed water area or the like.

<Second embodiment>
Next, the scum deposition suppressing device according to the second embodiment of the present invention will be described.
FIG. 5 shows a schematic view of the scum deposition suppressing device and its installation state according to the second embodiment of the present invention. Further, FIG. 6 shows a schematic configuration diagram (including a schematic diagram of the operating state) of the scum deposition suppressing device according to the second embodiment of the present invention, and FIG. 6A shows a case where the water level rises. A schematic side view of the scum deposition suppressing device, FIG. 6 (b) is a schematic side view of the scum deposition suppressing device when the water level drops, and FIG. 6 (c) is a schematic side view of the arrow line of sight AA direction of FIG. 6 (a). It is a top view.

As shown in FIG. 5 and the like, in the present embodiment, the case where the scum deposition suppressing device 201 is installed in the underdrain UD (for example, in the first settling basin in the sewage treatment plant) will be described. Similar to the first embodiment, the scum deposition suppressing device 201 according to the present embodiment is configured to have a size that can be carried into the underdrain UD and installed from the opening UD2 formed on the floor surface UD1 of the underdrain UD. ing.

As shown in FIG. 5 and the like, the scum deposition suppressing device 201 according to the present embodiment includes a water flow generating unit 210, a float unit 240 (corresponding to the “depth adjusting unit” of the present invention), a fluid supply pipe unit 250, and an operation. It is configured by using an auxiliary unit 260 or the like.

More specifically, the scum deposition suppressing device 201 according to the present embodiment has a water flow generating unit 210 provided in water and a water flow generating unit 210 in order to adjust the positions of the water flow generating unit 210 to a predetermined depth. A float unit 240 fixedly provided at an upper position of the water flow unit 240, a fluid supply pipe unit 250 connected to a fluid supply source to supply a fluid as driving water to the water flow generation unit 210, and a water flow generation unit 240. When the position of the portion 210 is moved, the water flow generating portion 210 and the operation assisting portion 260 that functions to assist the movement of the fluid supply pipe portion 250 are used.

The structure of the water flow generating section 210 constituting the scum deposition suppressing device 201 according to the present embodiment is the same as that of the water flow generating section 10 according to the first embodiment described above. Therefore, the description of the specific configuration of the water flow generation unit 210 is omitted here.

Further, the configuration of the float portion 240 constituting the scum deposition suppressing device 201 according to the present embodiment is also the same as the configuration of the float portion 40 according to the first embodiment described above. Therefore, the description of the specific configuration of the float unit 240 will be omitted here.

The fluid supply pipe portion 250 constituting the scum deposition suppressing device 201 according to the present embodiment is configured such that either the upper end portion thereof or a portion in the vicinity thereof is fixed to the floor surface UD1 of the underdrain UD. Further, the fluid supply pipe portion 250 is configured by using the expansion / contraction pipe inner cylinder portion 252 and the expansion / contraction pipe outer cylinder portion 254. In the present embodiment, either the upper end portion of the telescopic pipe outer cylinder portion 254 or its vicinity is fixed to the floor surface UD1 of the underdrain UD, and the telescopic pipe inner cylinder portion 252 is moved up and down in the telescopic pipe outer cylinder portion 254. It is configured to move.

As shown in FIG. 5 and the like, the operation assisting portion 260 constituting the scum deposition suppressing device 201 according to the present embodiment is configured by using the connecting support portion 261 and the annular support portion 262 and the like.

The connecting support portion 261 and the annular support portion 262 forming the operation assisting portion 260 are integrally configured (see FIG. 6C). Further, the annular support portion 262 is configured to be slidable on the outside of the outer cylinder portion 254 of each telescopic pipe, and the connection support portion 261 is configured to connect the annular support portion 262 and the float portion 240. There is.

The scum deposition suppressing device 201 according to the present embodiment is configured as described above, and the specific configuration thereof is as shown in FIGS. 5 and 6. Hereinafter, the configuration and operation / effect of the scum deposition suppressing device 201 according to the present embodiment will be described with reference to the drawings.

The scum accumulation suppressing device 201 according to the present embodiment is a device that suppresses the accumulation of scum FS, and is a depth that adjusts the positions of the water flow generating section 210 and the water flow generating section 210 provided in the water to a predetermined depth. A water flow adjusting unit and a fluid supply unit for supplying a fluid to the water flow generating unit 210 are provided. The depth adjusting unit is configured by using a float unit 240 fixed to the water flow generating unit 210, and the fluid supply unit is a fluid. It is configured by using the fluid supply pipe section 250 connected to the supply source, and when the position of the water flow generating section 210 is moved by the float section 240 forming the depth adjusting section, the water flow generating section 210 and the fluid supply pipe section are used. An operation assisting portion 260 that functions to assist the movement of at least one of the 250 is provided, and the fluid supply pipe portion expands and contracts with the telescopic pipe (the telescopic pipe inner cylinder portion 252 inside the telescopic pipe outer cylinder portion 254). (Piping) is used, and the operation assisting portion 260 is provided so as to be slidable on the outside of the telescopic pipe outer cylinder portion 254 forming the telescopic pipe, and the float portion 240 and the annular support portion 262. It is configured by using a connecting support portion 261 in which and is connected.

The scum deposition suppressing device 201 according to the present embodiment is configured as described above, and the buoyancy of the float portion 240 is equal to that of the water surface side end portion of the outer cylinder portion forming the water flow generating portion 210, as in the first embodiment. The distance from the water surface WS (distance between water surfaces z) is set to be a preferable range (30 mm to 500 mm) or a more preferable range (50 mm to 100 mm). That is, the scum deposition suppressing device 201 according to the present embodiment preferably has a water surface distance z in consideration of the balance between the total weight of the scum deposition suppressing device 201 and the buoyancy of the float portion 240, as in the first embodiment. It is configured to be a range (or a more preferable range).

As a result of diligent research, the inventors of this case ejected a fluid into the accumulated scum FS, and in order to effectively destroy or flush the scum FS, the outer cylinder portion forming the water flow generating portion 210 is formed. It was found that the distance between the water surface side end and the water surface (distance between water surfaces z) is very important. Then, it was found that the distance z between the water surfaces is preferably in the range of 30 mm to 500 mm, and more preferably in the range of 50 mm to 100 mm.

Since the scum deposition suppressing device 201 according to the present embodiment is provided with the float portion 240 as described above, the distance between the water surfaces z is even when the water level of the fluid (sewage or the like) in the underdrain UD fluctuates. Is maintained within a predetermined range. That is, according to the present embodiment, the distance z between the water surfaces is large regardless of whether the water level rises (see FIG. 6A) or falls (see FIG. 6B). Since it is maintained, the scum FS can be effectively destroyed and swept away by the fluid ejected from the water flow generation unit 210.

Further, in the scum deposition suppressing device 201 according to the present embodiment, it is preferable that the upper surface of the float portion 240 protrudes above the water surface by about 30 mm to 80 mm.
According to this preferable configuration, it is possible to prevent scum from invading the upper part of the water flow generating portion 210 (forming the outer cylinder portion), which is a place where the flow velocity becomes slow, and suppress the accumulation of scum at the upper position of the outer cylinder portion and its vicinity. be able to.

Since the scum deposition suppressing device 201 according to the present embodiment is configured and functions as described above, according to the present embodiment, the dam, lake, water storage tank, septic tank, and sewage treatment can be carried out with a relatively low cost and simple configuration. In order to improve the water quality of a field or the like (closed water area or the like), it is possible to obtain a scum deposition suppressing device that suppresses the accumulation of scum FS floating on or near the water surface of the closed water area or the like.

<Third Embodiment>
Next, the scum deposition suppressing device according to the third embodiment of the present invention will be described.
FIG. 7 shows a schematic view of the scum deposition suppressing device and its installation state according to the third embodiment of the present invention. Further, FIG. 8 shows a schematic configuration diagram (including a schematic diagram of the operating state) of the scum deposition suppressing device according to the third embodiment of the present invention, and FIG. 8A shows a case where the water level rises. A schematic side view of the scum deposition suppressing device, FIG. 8 (b) is a schematic side view of the scum deposition suppressing device when the water level drops, and FIG. 8 (c) is a schematic side view of the arrow line of sight AA direction of FIG. 8 (a). It is a top view.

As shown in FIG. 7 and the like, in the present embodiment, the case where the scum deposition suppressing device 301 is installed in the underdrain UD (for example, in the first settling basin in the sewage treatment plant) will be described. Similar to the first embodiment, the scum deposition suppressing device 301 according to the present embodiment is configured to have a size that can be carried into the underdrain UD and installed from the opening UD2 formed on the floor surface UD1 of the underdrain UD. Has been done.

As shown in FIG. 7 and the like, the scum deposition suppressing device 301 according to the present embodiment includes a water flow generating section 310, a float section 340 (corresponding to the “depth adjusting section” of the present invention), a fluid supply hose section 350, and an operation. It is configured by using an auxiliary unit 360 or the like.

More specifically, the scum deposition suppressing device 301 according to the present embodiment has a water flow generating unit 310 provided in water and a water flow generating unit 310 in order to adjust the positions of the water flow generating unit 310 to a predetermined depth. A float unit 340 fixedly provided at an upper position of the water flow unit, a fluid supply hose unit 350 connected to a fluid supply source to supply a fluid as driving water to the water flow generation unit 310, and a water flow generation unit 340. When moving the position of the unit 310, it is configured by using an operation assisting unit 360 or the like that functions to assist the movement of the water flow generating unit 310.

The configuration of the water flow generating unit 310 constituting the scum deposition suppressing device 301 according to the present embodiment is the same as that of the water flow generating unit 10 according to the first embodiment described above. Therefore, the description of the specific configuration of the water flow generation unit 310 will be omitted here.

Further, the configuration of the float portion 340 constituting the scum deposition suppressing device 301 according to the present embodiment is also the same as the configuration of the float portion 40 according to the first embodiment described above. Therefore, the description of the specific configuration of the float unit 340 will be omitted here.

The fluid supply hose portion 350 constituting the scum deposition suppressing device 301 according to the present embodiment is configured to have flexibility, and is configured by using, for example, a rubber hose, a vinyl chloride resin hose, or the like.
Further, the fluid supply hose portion 350 according to the present embodiment has one end connected to the fluid supply source and the other end connected to the pipe connection portion of the nozzle portion.

As shown in FIG. 7 and the like, the operation assisting portion 360 constituting the scum deposition suppressing device 301 according to the present embodiment includes a pair of lower rail support portions 366, a pair of upper rail support portions 367, and a pair of inclined rail portions 369. Etc. are used.

More specifically, the rail support portions (lower rail support portion 366, upper rail support portion 367) forming the operation assisting portion 360 are located at their upper ends in the vicinity of the opening UD2 formed on the floor surface UD1 of the underdrain UD. The part is fixed. An inclined rail portion 369 is provided so as to be fixed to the lower end portion of the lower rail support portion 366 and the lower end portion of the upper rail support portion 367.

The water flow generating portion 310 forming the scum deposition suppressing device 301 according to the present embodiment is provided between the pair of inclined rail portions 369 (see FIG. 8C), and vertically between the pair of inclined rail portions 369. It is configured to be slidable.

The scum deposition suppressing device 301 according to the present embodiment is configured as described above, and the specific configuration thereof is as shown in FIGS. 7 and 8. Hereinafter, the configuration and operation / effect of the scum deposition suppressing device 301 according to the present embodiment will be described with reference to the drawings.

The scum accumulation suppressing device 301 according to the present embodiment is a device that suppresses the accumulation of scum FS, and is a depth that adjusts the positions of the water flow generating unit 310 and the water flow generating unit 310 provided in water to a predetermined depth. A water flow adjusting unit and a fluid supply unit for supplying a fluid to the water flow generating unit 310 are provided. The depth adjusting unit is configured by using a float unit 340 fixed to the water flow generating unit 310, and the fluid supply unit is a fluid. It is configured by using the fluid supply hose unit 350 connected to the supply source, and when the position of the water flow generation unit 310 is moved by the float unit 340 forming the depth adjustment unit, the water flow generation unit 310 and the fluid supply hose unit An operation assisting portion 360 that functions to assist the movement of at least one of the 350s is provided, and the actuating assisting portion 360 is provided with a pair of inclined rail portions 369 provided with a slidable water flow generating portion 310, and an inclined rail. It is configured by using a rail support portion (lower rail support portion 366 and upper rail support portion 367) for fixing the portion 369.

The scum deposition suppressing device 301 according to the present embodiment is configured as described above, and similarly to the first embodiment, the buoyancy of the float portion 340 is equal to the water surface side end portion of the outer cylinder portion forming the water flow generating portion 310. The distance from the water surface WS (distance between water surfaces z) is set to be a preferable range (30 mm to 500 mm) or a more preferable range (50 mm to 100 mm). That is, the scum deposition suppressing device 301 according to the present embodiment preferably has a water surface distance z in consideration of the balance between the total weight of the scum deposition suppressing device 301 and the buoyancy of the float portion 340, as in the first embodiment. It is configured to be a range (or a more preferable range).

As a result of diligent research, the inventors of this case ejected a fluid into the accumulated scum FS, and in order to effectively destroy or flush the scum FS, the outer cylinder portion forming the water flow generating portion 310 was formed. It was found that the distance between the water surface side end and the water surface (distance between water surfaces z) is very important. Then, it was found that the distance z between the water surfaces is preferably in the range of 30 mm to 500 mm, and more preferably in the range of 50 mm to 100 mm.

Since the scum deposition suppressing device 301 according to the present embodiment is provided with the float portion 340 as described above, the water flow generating portion 310 even when the water level of the fluid (sewage or the like) in the underdrain UD fluctuates. Slides up and down between the pair of inclined rail portions 369, so that the water surface distance z is maintained within a predetermined range. That is, according to the present embodiment, the distance z between the water surfaces is large regardless of whether the water level rises (see FIG. 8 (a)) or the water level falls (see FIG. 8 (b)). Since it is maintained, the scum FS can be effectively destroyed and swept away by the fluid ejected from the water flow generation unit 310.

Further, in the scum deposition suppressing device 301 according to the present embodiment, it is preferable that the upper surface of the float portion 340 protrudes from the water surface by about 30 mm to 80 mm.
According to this preferable configuration, it is possible to prevent scum from invading the upper part of the water flow generating portion 310 (forming the outer cylinder portion), which is a place where the flow velocity becomes slow, and suppress the accumulation of scum at the upper position of the outer cylinder portion and its vicinity. be able to.

Since the scum deposition suppressing device 301 according to the present embodiment is configured and functions as described above, according to the present embodiment, the dam, lake, water storage tank, septic tank, and sewage treatment can be carried out with a relatively low cost and simple configuration. In order to improve the water quality of a field or the like (closed water area or the like), it is possible to obtain a scum deposition suppressing device that suppresses the accumulation of scum FS floating on or near the water surface of the closed water area or the like.

<Fourth Embodiment>
Next, the scum deposition suppressing device according to the fourth embodiment of the present invention will be described.
FIG. 9 shows a schematic view of the scum deposition suppressing device and its installation state according to the fourth embodiment of the present invention. Further, FIG. 10 shows a schematic configuration diagram (including a schematic diagram of the operating state) of the scum deposition suppressing device according to the fourth embodiment of the present invention, and FIG. 10A shows a case where the water level rises. A schematic side view of the scum deposition suppressing device, FIG. 10B is a schematic side view of the scum deposition suppressing device when the water level drops.

As shown in FIG. 9 and the like, in the present embodiment, the case where the scum deposition suppressing device 401 is installed in the underdrain UD (for example, in the first settling basin in the sewage treatment plant) will be described. Similar to the first embodiment, the scum deposition suppressing device 401 according to the present embodiment is configured to have a size that can be carried into the underdrain UD and installed from the opening UD2 formed on the floor surface UD1 of the underdrain UD. Has been done.

As shown in FIG. 9 and the like, the scum deposition suppressing device 401 according to the present embodiment is configured by using a water flow generating unit 410, a fluid supply hose unit 450, an operation assisting unit 460, a control unit 470, and the like. In the present embodiment, the operation assisting unit 460 is configured by using two vertical movement driving units 465.

More specifically, the scum deposition suppressing device 401 according to the present embodiment has a water flow generating unit 410 provided in water and a water flow generating unit 410 in order to adjust the positions of the water flow generating unit 410 to a predetermined depth. A vertical movement drive unit 465 fixedly provided at an upper position of the water level, a fluid supply hose unit 450 connected to a fluid supply source to supply a fluid as driving water to a water flow generation unit 410, and a water level fluctuation detection. It is configured by using a water level sensor unit 471 and a control unit 470 or the like that drives a vertical movement drive unit 465 based on a signal from the water level sensor unit 471.

The depth adjusting unit forming the scum accumulation suppressing device 401 according to the present embodiment includes a water level sensor unit 471, a rotary handle unit 463 and a vertical movement drive unit 465 (downward drive shaft 461, upward support) based on signals from the water level sensor unit 471. It is configured by using a control unit 470 that controls the shaft 462), a vertical movement drive unit 465, and the like.

The configuration of the water flow generating unit 410 constituting the scum deposition suppressing device 401 according to the present embodiment is the same as that of the water flow generating unit 10 according to the first embodiment described above. Therefore, the description of the specific configuration of the water flow generation unit 410 will be omitted here.

The fluid supply hose portion 450 constituting the scum deposition suppressing device 401 according to the present embodiment is configured to have flexibility, and is configured by using, for example, a rubber hose, a vinyl chloride resin hose, or the like.
Further, the fluid supply hose portion 450 according to the present embodiment has one end connected to the fluid supply source and the other end connected to the pipe connection portion of the nozzle portion.

As shown in FIG. 9 and the like, the operation assisting unit 460 constituting the scum deposition suppressing device 401 according to the present embodiment is configured by using two vertical movement driving units 465. Each vertical movement drive unit 465 is configured to be driven by a signal from the control unit 470 based on the water level fluctuation signal from the water level sensor unit 471. Further, each of the vertical movement drive units 465 is configured by using a lower drive shaft 461, an upper support shaft 462, and the like. Further, each of the vertical movement drive units 465 is configured to be vertically movable by using the rotary handle unit 463, if necessary.

The vertical movement drive unit 465 is configured by using the lower drive shaft 461 and the upper support shaft 462. The lower drive shaft 461 is configured to slide up and down as the shaft rotates. Further, the upper support shaft 462 is provided with a rotating mechanism inside, and is configured to protect the rotating shaft member with a steel pipe. That is, in the present embodiment, the lower drive shaft 461 is provided inside the upper support shaft 462, and the rotation mechanism (female screw structure portion) of the upper support shaft 462 rotates to rotate the lower drive shaft 461 (male screw structure). Part) is configured to move up and down in the upper support shaft 462.

As shown in FIG. 9 and the like, in the scum deposition suppressing device 401 according to the present embodiment, the lower end portion of the lower drive shaft 461 forming the vertical movement drive portion 465 is fixed to the upper surface of the water flow generating portion 410, and is vertically moved up and down. The upper end portion of the upper support shaft 462 forming the dynamic drive unit 465 is fixedly attached to the floor surface UD1 or the like of the underdrain UD.

The scum deposition suppressing device 401 according to the present embodiment is configured as described above, and the specific configuration thereof is as shown in FIGS. 9 and 10. Hereinafter, the configuration and operation / effect of the scum deposition suppressing device 401 according to the present embodiment will be described with reference to the drawings.

The scum accumulation suppressing device 401 according to the present embodiment is a device that suppresses the accumulation of scum FS, and is a depth that adjusts the positions of the water flow generating section 410 and the water flow generating section 410 provided in the water to a predetermined depth. A water flow adjusting unit and a fluid supply unit that supplies fluid to the water flow generating unit 410 are provided, and when the position of the water flow generating unit 410 is moved by the depth adjusting unit, at least one of the water flow generating unit 410 and the fluid supply unit is provided. An operation assisting unit 460 that functions to assist movement is provided, and the depth adjusting unit is electrically provided with a water level sensor unit 471, an operation assisting unit 460, and these water level sensor units 471 and the operation assisting unit 460. It is configured by using the connected control unit 471, and the operation assisting unit 460 is configured by using the vertical movement drive unit 465 that moves up and down based on the signal from the control unit 470, and is configured by the operation assisting unit 460 and the water flow. The generation part 410 is fixed.

As described above, the scum accumulation suppressing device 401 according to the present embodiment uses the water level sensor unit 471, the control unit 470, the operation assisting unit 460 (the vertical movement driving unit 465), and the like to form the water flow generating unit 410. The distance between the water surface side end of the outer cylinder and the water surface WS (distance between water surfaces z) is configured to be a preferable range (30 mm to 500 mm) or a more preferable range (50 mm to 100 mm). That is, the scum deposition suppressing device 401 according to the present embodiment drives the vertical drive unit 465 based on the signal from the water level sensor unit 471 so that the water surface distance z becomes a preferable range (or a more preferable range). It is configured in.

As a result of diligent research, the inventors of this case ejected a fluid into the accumulated scum FS, and in order to effectively destroy or flush the scum FS, the outer cylinder portion forming the water flow generating portion 410 is formed. It was found that the distance between the water surface side end and the water surface (distance between water surfaces z) is very important. Then, it was found that the distance z between the water surfaces is preferably in the range of 30 mm to 500 mm, and more preferably in the range of 50 mm to 100 mm.

Since the scum deposition suppressing device 401 according to the present embodiment is configured as described above, the water level sensor unit 471 and the vertical movement drive are driven even when the water level of the fluid (sewage, etc.) in the underdrain UD fluctuates. By using the part 465 or the like, the distance z between the water surfaces is maintained within a predetermined range. That is, according to the present embodiment, the distance z between the water surfaces is large regardless of whether the water level rises (see FIG. 10 (a)) or falls (see FIG. 10 (b)). Since it is maintained, the scum FS can be effectively destroyed and swept away by the fluid ejected from the water flow generating portion 410.

Since the scum deposition suppressing device 401 according to the present embodiment is configured and functions as described above, according to the present embodiment, a dam, a lake, a water tank, a septic tank, and a sewage treatment can be carried out with a relatively low cost and a simple configuration. In order to improve the water quality of a field or the like (closed water area or the like), it is possible to obtain a scum deposition suppressing device that suppresses the accumulation of scum FS floating on or near the water surface of the closed water area or the like.

<Other Embodiments>
The present invention is not limited to the above-described embodiment, and various modifications can be made as necessary to the extent that it can be adapted to the gist of the present invention. Included in the technical scope of the invention.

In each of the above embodiments, the configuration in which the water flow generating portion 10 forming the scum deposition suppressing device has two nozzle portions 12 for one outer cylinder portion 11 has been described, but the present invention is not limited to this configuration. Therefore, for example, when configuring the water flow generating portion 10, one or three or more nozzle portions may be provided in one outer cylinder portion as needed, and a plurality of outer cylinders may be provided as needed. One or more nozzle portions may be provided in the portions.

The present invention is a device for improving the water quality of dams, lakes, water tanks, septic tanks, sewage treatment plants, etc. (closed water areas, etc.), specifically, scum floating on or near the water surface of closed water areas, etc. It relates to a scum deposition suppressing device that suppresses the deposition of water.

Dams, lakes, water tanks, septic tanks, sewage treatment plants, etc. (closed water areas, etc.) may be required to improve the water quality of these closed water areas, etc. Various devices are provided in water areas and the like.

However, since most of the devices according to the prior art are fixed type, there is a problem that they cannot cope with fluctuations in water level and the like.

In order to solve such a problem, the present inventors have invented a scum deposition suppressing device having various depth adjusting portions. In addition, as a result of diligent research, the present inventors have found numerical conditions for effectively destroying scum.

As a specific configuration, one of the present invention is a scum deposition suppressing device that suppresses the accumulation of scum, and adjusts the positions of the water flow generating portion provided in the water and the water flow generating portion to a predetermined depth. A depth adjusting unit and a fluid supply unit that supplies fluid to the water flow generation unit are provided, and when the position of the water flow generation unit is moved by the depth adjustment unit, the water flow generation unit and the fluid supply unit are provided. It is characterized in that an operation assisting portion that functions to assist the movement of at least one of the above is provided.

With the above configuration, according to the present invention, even if the water level fluctuates, a dam, lake, water storage tank, septic tank, sewage treatment plant, etc. (closed water area, etc.) can be constructed with a relatively low cost and simple configuration. In order to improve the water quality, it is possible to obtain a scum deposition suppressing device that suppresses the accumulation of scum floating on or near the water surface such as a closed water area.
That is, since the scum deposition suppressing device according to the present invention appropriately solves the problems of the existing device (conventional technique), it is considered to have high industrial applicability.

1 ... Scum deposition suppressing device (scum deposition suppressing device according to the first embodiment)
10 ... Water flow generator 11 ... Outer cylinder 11A ... Water flow outlet (downstream opening)
11B ... Fluid inlet (upstream opening)
11S ... Water surface side end (water surface side end of the opening of the water flow generation part)
12 ... Nozzle part 12A ... Nozzle tip part 12B ... Pipe connection part 40 ... Float part (depth adjustment part)
50 ... Fluid supply hose section (fluid supply pipe section)
60 ... Operation assisting part 61 ... Connecting support part 62 ... Circular support part 65 ... Pipe support part 201 ... Scum deposition suppressing device (Scum deposition suppressing device according to the second embodiment)
210 ... Water flow generation part 240 ... Float part (depth adjustment part)
250 ... Fluid supply pipe part 252 ... Telescopic pipe inner cylinder part (fluid supply pipe part)
254 ... Telescopic piping outer cylinder (fluid supply pipe)
260 ... Operation assisting part 261 ... Connecting support part 262 ... Circular support part 301 ... Scum deposition suppressing device (Scum deposition suppressing device according to the third embodiment)
310 ... Water flow generator 340 ... Float part (depth adjustment part)
350 ... Fluid supply hose section (fluid supply pipe section)
360 ... Operation assisting part 366 ... Lower rail support part 367 ... Upper rail support part 369 ... Inclined rail part 401 ... Scum deposition suppressing device (Scum deposition suppressing device according to the fourth embodiment)
410 ... Water flow generator 450 ... Fluid supply hose (fluid supply pipe)
460 ... Operation assisting part 461 ... Downward drive shaft 462 ... Upper support shaft 463 ... Rotating handle part 465 ... Vertical movement drive part 470 ... Control part 471 ... Water level sensor part FS ... Scum UD ... Underdrain UD1 ... Floor surface UD2 ... Opening WS … Water surface z… Distance between water surfaces

Claims (4)

It is a scum deposition suppression device that suppresses scum deposition.
A water flow generator provided in the water and
A depth adjusting unit that adjusts the position of the water flow generating unit to a predetermined depth,
A fluid supply unit that supplies fluid to the water flow generation unit is provided.
The depth adjusting portion is configured by using a float portion fixed to the water flow generating portion.
When the position of the water flow generating unit is moved by the depth adjusting unit, an operation assisting unit that functions to assist the movement of at least one of the water flow generating unit and the fluid supply unit is provided .
The water flow generating portion is configured by using an outer cylinder portion and a nozzle portion provided with a nozzle tip portion serving as a fluid ejection port in the outer cylinder portion, and the fluid supply portion is connected to the nozzle portion. By supplying a fluid to the nozzle portion and ejecting the fluid from the nozzle tip portion, a water flow is generated in the horizontal direction at the downstream opening of the outer cylinder portion.
The operation assisting portion is configured by using a connecting support portion, an annular support portion, and a pipe support portion, and the pipe support portion is in a state where the fluid supply portion is inserted into the inside thereof, and the upper end portion thereof and its vicinity thereof. One of the portions is fixed to the floor surface of the underdrain, the connecting support portion and the annular support portion are integrally configured, and the annular support portion is slidable on the outside of the pipe support portion. A scum deposition suppressing device , wherein the connecting support portion is configured to connect the annular support portion and the float portion. It is a scum deposition suppression device that suppresses scum deposition.
A water flow generator provided in the water and
A depth adjusting unit that adjusts the position of the water flow generating unit to a predetermined depth,
A fluid supply unit that supplies fluid to the water flow generation unit is provided.
The depth adjusting portion is configured by using a float portion fixed to the water flow generating portion.
When the position of the water flow generating portion is moved by the float portion forming the depth adjusting portion, an operation assisting portion that functions to assist the movement of at least one of the water flow generating portion and the fluid supply portion is provided. Ori,
The water flow generating portion is configured by using an outer cylinder portion and a nozzle portion provided with a nozzle tip portion serving as a fluid ejection port in the outer cylinder portion, and the fluid supply portion is connected to the nozzle portion. By supplying a fluid to the nozzle portion and ejecting the fluid from the nozzle tip portion, a water flow is generated in the horizontal direction at the downstream opening of the outer cylinder portion.
The operation assisting portion is composed of a pair of lower rail support portions, a pair of upper rail support portions, and a pair of inclined rail portions, and the lower rail support portion and the upper rail support portion are formed on the floor surface of the underdrain. Each upper end is fixed in the vicinity of the opening, and the inclined rail portion is provided so as to be fixed to the lower end of the lower rail support portion and the lower end of the upper rail support portion.
A scum deposition suppressing device characterized in that the water flow generating portion is provided between the pair of inclined rail portions and is configured to be slidable up and down between the pair of inclined rail portions. It is a scum deposition suppression device that suppresses scum deposition.
A water flow generator provided in the water and
A depth adjusting unit that adjusts the position of the water flow generating unit to a predetermined depth,
A fluid supply unit that supplies fluid to the water flow generation unit is provided.
When the position of the water flow generating unit is moved by the depth adjusting unit, an operation assisting unit that functions to assist the movement of at least one of the water flow generating unit and the fluid supply unit is provided.
The water flow generating portion is configured by using an outer cylinder portion and a nozzle portion provided with a nozzle tip portion serving as a fluid ejection port in the outer cylinder portion, and the fluid supply portion is connected to the nozzle portion. By supplying a fluid to the nozzle portion and ejecting the fluid from the nozzle tip portion, a water flow is generated in the horizontal direction at the downstream opening of the outer cylinder portion.
The operation assisting unit is configured by using a vertical movement drive unit, the vertical movement drive unit is configured by using a lower drive shaft and an upper support shaft, and the lower drive shaft slides up and down by rotating the shaft. The upper support shaft is provided with a rotation mechanism inside, the lower drive shaft is provided inside the upper support shaft, and the rotation mechanism structure portion of the upper support shaft is rotated to cause the lower side. The drive shaft is configured to move up and down in the upper support shaft.
The lower end of the lower drive shaft forming the vertical drive unit is fixed to the upper surface of the water flow generating unit, and the upper end of the upper support shaft forming the vertical drive unit is fixed to the floor surface of the underdrain. A scum deposition suppression device characterized in that it is attached to the vehicle. Claims 1 to 3 in which the depth of the water flow generating portion is adjusted by using the depth adjusting portion so that the distance between the water surface side end of the opening of the water flow generating portion and the water surface is in the range of 50 mm to 100 mm. The scum deposition suppressing device according to any one of the above items.

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