JP2022179679A - Transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer device capable of transferring an object floating on a water surface with a simple structure while suppressing an amount of fluid to be discharged.

SOLUTION: There is provided a transfer device including: a flow path forming member 5 provided with a suction port 5a connected to a flow path S and submerged in water; a discharge port 7a for discharging fluid into the flow path S; and a partition member 3 provided with an inflow port 3a submerged in water and surrounding the flow path forming member 5. The inflow port 3a is an opening that allows a scum Sc floating on a water surface to flow into a peripheral region R1 between the partition member 3 and the flow path forming member 5 as a result of the fluid being discharged into the flow path S, and the suction port 5a is an opening that sucks into the flow path S the scum Sc flowed into the peripheral region R1 as a result of the fluid being discharged into the flow path S, and the flow path S is a path along which the scum Sc sucked into the flow path S moves toward a downstream side in a fluid discharge direction as a result of the fluid being discharged into the flow path S, and a radial distance Di between the partition member 3 and the flow path forming member 5 narrows toward the suction port 5a.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2023,JPO&INPIT

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device for transferring an object floating on the surface of water.

2. Description of the Related Art Conveyance culverts, sedimentation tanks, and the like of sewage treatment plants are provided with transfer devices that transfer objects to be transferred, such as scum floating on the surface of the water, toward a scum pit or the like (see, for example, Patent Document 1, etc.).

FIG. 13 is a schematic view of the transfer device described in Patent Document 1 as viewed from above. The transfer device 6 described in Patent Document 1 includes a plurality of spray nozzles 61 provided about 100 mm to 200 mm above the surface of the sewage in the conduit 9 through which the sewage flows from the left side to the right side of the figure. ing. The plurality of spray nozzles 61 are arranged at predetermined intervals in the width direction (the vertical direction in FIG. 13) of the conduit 9, and the scum Sc (object to be transferred) is transferred in the direction (from the left side to the right side in FIG. 13). direction) are also arranged in multiple rows at predetermined intervals. In the transfer device 6 described in Patent Literature 1, pressurized water or air is discharged from a plurality of spray nozzles 61 substantially horizontally in the transfer direction toward a scum pit (not shown) or the like. As a result, an air current or blowing current directed toward the scum pit is generated on the water surface, and the scum floating on the water surface is transported toward the scum pit or the like by the air current or the like.

JP-A-7-303883

However, in the transfer device 6 described in Patent Document 1, the pressure water or the like discharged from the spray nozzle 61 spreads, and it is difficult to generate an air current or the like capable of transferring the object to be transferred over a wide area above the water surface. . For this reason, in FIG. 13 , as shown by the outline surrounding the range where the pressure water or the like discharged from the spray nozzle 61 can exert its effect with the dashed-dotted line, one spray nozzle 61 is applied to the object to be transferred (scum Sc). ) can be transferred on the surface of the water is limited. As a result, on the surface of the water where the scum Sc floats (in the figure, the scum floating on the surface of the water in a lump is denoted by Sc0), a large number of spray nozzles 61 are arranged at intervals. Furthermore, a large number of pipes 62 for supplying pressurized water or the like to the large number of spray nozzles 61 are required, resulting in a large-scale apparatus. In addition, a large amount of pressurized water or the like to be discharged from a large number of spray nozzles 61 is also required. Further, in a mode in which air is ejected from the spray nozzle 61, the scum Sc may be dried and solidified by the ejected air. Since the solidified scum Sc becomes difficult to move on the water surface, there is also a problem that more air must be discharged.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a transfer device capable of reducing the amount of fluid to be discharged and transferring an object floating on the water surface with a simple structure.

A transfer device of the present invention for solving the above object is a flow path forming member that forms a flow path and is provided with a suction port connected to the flow path and submerged in water;
a discharge port for discharging a fluid into the channel;
a partition member that is provided with an inlet that extends substantially parallel to the water surface and is submerged in water, and surrounds the flow path forming member;
The inflow port functions as an opening that allows an object to be transferred floating on the surface of the water to flow into the region between the partition member and the flow path forming member as the fluid is discharged into the flow path. ,
The suction port functions as an opening that sucks into the channel the object to be transferred that has flowed into the region between the partition member and the channel forming member by discharging the fluid into the channel. is a
The flow path functions as a path along which the object to be transferred that has been sucked into the flow path moves downstream in the discharge direction of the fluid as the fluid is discharged into the flow path. ,
A space between the partition member and the flow path forming member is characterized by narrowing toward the suction port.

ADVANTAGE OF THE INVENTION According to this invention, the transfer apparatus which can transfer the to-be-transferred object which floated on the water surface by suppressing the quantity of the fluid to discharge, and is simple by a structure can be provided.

1 is a top plan view of a conduit provided with a transfer device according to an embodiment of the present invention; FIG. FIG. 2 is a cross-sectional view of the conduit shown in FIG. 1 taken along the line AA. FIG. 2 is a cross-sectional view of the transfer device shown in FIG. 1 taken along the line BB; (a) is a diagram showing a transfer device of a first modification, and (b) is a diagram showing a transfer device of a second modification. (a) is a diagram showing a transfer device of a third modification, and (b) is a diagram showing a transfer device of a fourth modification. (a) is a diagram showing a transfer device of a fifth modification, and (b) is a diagram showing a transfer device of a sixth modification. (a) is a diagram showing a transfer device of a seventh modification, and (b) is a diagram showing a transfer device of an eighth modification. It is a figure which shows the transfer apparatus of a 9th modification. It is a figure which shows the transfer apparatus of a tenth modification. It is a figure which shows the transfer apparatus of the 11th modification. FIG. 10 is a schematic configuration diagram of a lay-down structure provided with a transfer device according to a second embodiment of the present invention; FIG. 12 is a cross-sectional view taken along the line CC of the lay-over pipe shown in FIG. 11; It is a schematic diagram of a state that the transfer device described in Patent Document 1 is viewed from above.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. INDUSTRIAL APPLICABILITY The transfer device of the present invention can be employed in various facilities and structures for transferring objects floating on the surface of water. can be suitably applied to In this embodiment, a transfer device that is provided in a conduit of a primary sedimentation tank or a final sedimentation tank and that transfers scum floating on the water surface will be described as an example. That is, in this embodiment, the scum corresponds to an example of the object to be transferred. A water conduit is a channel for distributing sewage received from a settling tank, an aeration tank, etc., to a plurality of sedimentation tanks in a sewage treatment plant, and scum floating on the water surface is collected in a scum pit.

FIG. 1 is a top plan view of a conduit provided with a transfer device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the conduit shown in FIG. 1 taken along the line AA. In addition, FIG. 1 also shows a part of a plurality of sedimentation tanks P to which sewage is distributed from the conduit 9 .

As shown in FIG. 1, the conduit 9 is a rectangular waterway that is long in the left-right direction when viewed from above. and has a scum pit 92 partitioned by a blocking wall 93 . The flowing water part 91 receives sewage from the left side of the drawing, and the received sewage flows toward a scum pit 92 provided on the right side of the drawing, where it is blocked by a blocking wall 93 . A plurality of sedimentation basins P arranged side by side in the direction in which sewage flows through the water flowing portion 91 are connected to the water flowing portion 91 via communication ports 94 . The sewage flowing through the water flow part 91 is distributed by flowing into each sedimentation basin P from each communication port 94, and the sewage flowing into each sedimentation basin P flows downward in the figure.

As shown in FIGS. 1 and 2, the water flow section 91 is provided with the transfer device 1 . Before the transfer device 1 is driven, the scum Sc floats all over the water surface WL (see FIG. 2) of the sewage W in the flowing water portion 91 . 1 and 2, as will be described later in detail, the scum Sc is transferred to the right side of the drawing by discharging water from the discharge port 7a of the transfer device 1, and is collected near the blocking wall 93. showing the situation. That is, the scum Sc is transported in the longitudinal direction of the flowing water portion 91, and in FIGS. 1 and 2, the direction from left to right corresponds to the ejection direction in which the fluid is ejected, and the transport direction in which the scum Sc is transported. Also equivalent to In addition, the lateral direction of the water flowing portion 91, that is, the direction orthogonal to the discharge direction in the horizontal plane may be hereinafter referred to as the width direction.

The blocking wall 93 is formed with an opening 93a that communicates with the scum pit 92, and is provided with a gate 931 that closes the opening 93a. The gate 931 can slide vertically, for example, to open and close the opening 93a. When the gate 931 is slid so that its upper end is positioned below the water surface WL of the sewage W blocked by the blocking wall 93, the scum Sc collected in the vicinity of the blocking wall 93 is removed from the sewage. At the same time, it climbs over the gate 931 from the opening 93 a and flows into the scum pit 92 . The scum collected in the scum pit 92 is sent to a scum processor (not shown) and subjected to a predetermined treatment such as dehydration.

Next, the transfer device 1 will be described in detail with reference to FIGS. 1 to 3. FIG.

FIG. 3 is a cross-sectional view of the transfer device 1 shown in FIG. 1 taken along the line BB. In FIG. 3, the direction toward the front side of the paper surface is the discharge direction, and the left-to-right direction is the width direction.

As shown in FIGS. 1 to 3, the transfer device 1 includes a partition member 3, a flow path forming member 5 and a discharge member . As shown in FIGS. 1 and 2, the partition member 3 extends in the discharge direction in the water flow portion 91 and has a total length slightly shorter than the length of the water flow portion 91 in the longitudinal direction. . The partition member 3 extends parallel or substantially parallel to the ejection direction as shown in FIG. 1, and extends horizontally or substantially horizontally as shown in FIG. As shown in FIG. 3, the partition member 3 separates a peripheral region R1 around the flow path forming member 5 and another region R2 in the sewage W flowing through the water flowing portion 91 so that the peripheral region R1 is inside. It has an inflow port 3a connected to the peripheral region R1 and submerged in the sewage W. The partition member 3 of the present embodiment has an arcuate cross-section obtained by notching approximately one-third of the upper portion of a stainless steel cylinder having a diameter of 300 mm or more and 400 mm or less. An open inlet 3a is formed. An opening length L3 (see FIG. 4A) of the inlet 3a in the width direction is set to 275 mm or more and 375 mm or less. In addition, the partition member 3 has a curved portion 31 at the upper end portion thereof, which extends toward the center in the width direction. .

1 and 2, like the partition member 3, the flow path forming member 5 also extends in the discharge direction in the flowing water portion 91, and the total length thereof is substantially the same as that of the partition member 3. It is formed The flow path forming member 5 also extends parallel or substantially parallel to the discharge direction as shown in FIG. 1, and extends horizontally or substantially horizontally as shown in FIG. As shown in FIG. 3, the flow path forming member 5 forms the flow path S and partitions the flow path S from the peripheral region R1. Further, the flow path forming member 5 has a suction port 5a connected to the flow path S and submerged in the sewage W. As shown in FIG. The flow path forming member 5 of the present embodiment has an arcuate cross section obtained by notching approximately 1/6 of the lower portion of a stainless steel cylindrical body having a diameter of 150 mm or more and 200 mm or less. A suction port 5a is formed which is open toward. The flow path forming member 5 is attached to the partition member 3 by an attachment member (not shown) so that the suction port 5a opens in the peripheral region R1 and the upper end portion 51 is substantially at the same height as the inlet 3a. there is Note that in the present embodiment, the radial center of the flow path forming member 5 (notionally indicated by a symbol O in the drawing) is aligned with the radial center of the partition member 3 . Therefore, the radial distance Di (approximately 75 mm in this embodiment) between the partition member 3 and the flow path forming member 5 is substantially the same everywhere.

The discharge member 7 has a water supply pipe 70 connected to its rear end portion and a discharge port 7a provided at its distal end portion. As shown in FIG. It is inserted into the forming member 5 (channel S). The water supplied to the discharge member 7 from the water supply pipe 70 is discharged from the discharge port 7a in a horizontal direction or a substantially horizontal direction (see a solid rightward arrow in FIG. 2). In this embodiment, the discharge pressure of water discharged from the discharge port 7a is set to 0.3 MPa or less. As will be described later in detail, it is sufficient if the flow of water is once generated in the flow path S, so the pressure of the water discharged from the discharge port 7a may be sufficient even if it is 0.1 MPa or less. . Further, the flow rate of water discharged from the discharge port 7a is adjusted to 300 liters or more and 3000 liters or less per minute. Here, the water discharged from the discharge port 7a may be sewage received at a sewage treatment plant or tap water. Alternatively, a gas other than water or a fluid such as a gas-liquid mixture may be discharged from the discharge port 7a.

The discharge member 7 of this embodiment is formed by flattening the end portion of a round pipe-shaped water supply pipe to form an elongated discharge port 7a at the end thereof. Adopting a mode in which the discharge port 7a is formed by flattening the round pipe in this way facilitates the production thereof. Further, as shown in FIG. 3, the widthwise opening length L1 of the discharge port 7a is set longer than the widthwise opening length L2 of the suction port 5a. Specifically, in this embodiment, the widthwise opening length L2 of the suction port 5a is about 100 mm, the widthwise opening length L1 of the discharge port 7a is about 120 mm, and the height H1 of the discharge port 7a is about 20 mm. is. By forming the discharge port 7a into such a flat shape, it is possible to ensure a wider range in which the flow velocity is increased than when the discharge port 7a has a perfect circular shape. In some cases, it is preferable to use the round pipe-shaped water supply pipe as it is without crushing the tip portion of the round pipe-shaped water supply pipe, thereby adopting the perfect circular discharge port 7a.

Here, since the height of the water surface WL of the water flowing portion 91 varies depending on the amount of sewage received from the settling basin, etc., the height position of the transfer device 1 is set in consideration of the variation in the height of the water surface WL. be. Specifically, even if the height of the water surface WL of the water flowing portion 91 fluctuates, the inlet 3a of the partition member 3 is positioned lower than the water surface WL, and the depth Dp1 from the water surface WL is 200 mm or less, the center of the height direction of the discharge port 7a has a depth Dp2 of 50 mm or more and 300 mm or less from the water surface WL, and the suction port 5a of the flow path forming member 5 has a depth Dp3 of 100 mm or more and 400 mm or less from the water surface WL. is set to fit in In addition, the inlet 3a of the partition member 3 is located above the lower end portion of the opening 93a of the blocking wall 93, which is indicated by the dashed line in FIG.

The position of the transfer device 1 may be fixed, but in accordance with changes in the height of the water surface WL, as indicated by the double-headed arrows in FIGS. Either one of the flow path forming members 5 may be moved in the vertical direction. By doing so, the positions of the inflow port 3a and the suction port 5a can be made to follow changes in the height of the water surface WL, and can be maintained at a constant depth from the water surface WL. The discharge port 7a may be moved in the vertical direction in accordance with the vertical movement of the flow path forming member 5. Alternatively, the discharge port 7a may be fixed and only the flow path forming member 5 may be moved in the vertical direction. may be Alternatively, the transfer device 1 may be fixed, and the amount of sewage received by the water flow section 91 may be controlled such that the positions of the inlet 3a and the suction port 5a are maintained at a constant depth from the water surface WL.

In the transfer device 1 configured as described above, as shown in FIGS. 1 and 2, the scum Sc is transferred by discharging water from the discharge port 7a. Specifically, when water is discharged into the flow path S of the flow path forming member 5 from the discharge port 7a, it is drawn into the flow of the discharged water and, as shown in FIG. A flow of water in the direction of being sucked into the flow path S is generated. As a result, water flows into the peripheral region R1 from the inlet 3a, and water flows toward the suction port 5a within the peripheral region R1. As a result, on the water surface WL of the water flowing portion 91, a flow is generated in a direction that gathers at the inlet 3a of the partition member 3 (on the water surface WL in the vicinity of the inlet 3a, a flow is generated in a direction toward the inlet 3a; The flow caused by water compensating for this occurs.

1 and 2 schematically show the flow of the scum Sc. The scum floating on the water surface in a lumped state is denoted by Sc0 and lightly shaded, and separated from the lumped scum Sc0 The scum Sc is surrounded by a dashed-dotted line and shaded. A part of the scum floating on the entire water surface WL (see FIGS. 2 and 3) of the flowing water portion 91 collapses and becomes small due to the flow generated on the water surface in the direction of gathering at the inlet 3a. It becomes a mass of scum Sc and flows into the peripheral region R1 from the inlet 3a. By repeating this, as shown in FIG. 1, a region where the scum is removed (removed region on the water surface) is generated along the extending direction of the partition member 3, that is, along the transfer direction. Moreover, the scum Sc separated from the scum cluster Sc0 flows in the transfer direction in the removal area on the water surface and gathers near the blocking wall 93 . In addition, in the process of flowing through the removal area on the water surface, the scum Sc comes into contact with the lump of scum Sc0 and is partially broken, and the broken scum Sc also flows into the peripheral area R1 from the inlet 3a. Alternatively, the action of flowing in the transfer direction in the removal area on the water surface is repeated.

The scum Sc gathered at the inlet 3a flows into the peripheral region R1 from the inlet 3a and flows toward the suction port 5a through the peripheral region R1, as shown conceptually in FIG. After that, it is sucked into the channel S from the suction port 5a. Here, setting the depth of the suction port 5a from the water surface WL to 20 mm or more is preferable because the scum Sc can flow more smoothly from the suction port 5a.

In the sewage W, the peripheral region R1 is separated from the other region R2 by the partition member 3, so that the inflow of the scum Sc from the inlet 3a into the peripheral region R1 is promoted, and the scum Sc floating on the water surface WL can efficiently flow into the peripheral region R1. Furthermore, by partitioning the peripheral region R1 from the other region R2 by the partition member 3, the flow of water from the inlet 3a to the suction port 5a in the peripheral region R1 is not hindered, and the water flows into the peripheral region R1. The scum Sc flows through the peripheral region R1 and is smoothly sucked from the suction port 5a.

Further, as shown in FIGS. 1 and 2, in the flow path S, the sucked scum Sc moves toward the scum pit 92 due to the flow of water discharged from the discharge port 7a, and the flow path forming member 5 It is blown out from the downstream end 52 in the discharge direction. The scum Sc blown out from the downstream end 52 of the flow path forming member 5 gathers near the blocking wall 93 as described above, and by opening the gate 931, the scum collected near the blocking wall 93 Sc is collected in the scum pit 92 together with the sewage. Here, since the flow path S is surrounded by the flow path forming member 5, the flow of water once generated in the flow path S by discharging the water from the discharge port 7a is less likely to attenuate, and the scum Sc flows over a long distance. can be transported. As a result, the number of discharge ports 7a and supply pipes 7a for supplying water to the discharge ports 7a can be reduced, and a simple structure can be adopted. Furthermore, the amount of water discharged from the discharge port 7a can also be suppressed.

If the flow path forming member 5 is long, the ejection member 7 may also be provided in the middle of the flow path forming member 5 in the extending direction, as indicated by the dashed line in FIG. Furthermore, when the length of the water flowing portion 91 in the width direction is long, a plurality of the flow path forming members 5 and the partition members 3 are arranged side by side in the width direction of the water flowing portion 91, and the flow paths S of the respective flow path forming members 5 Alternatively, as indicated by the double arrow in FIG. 1, the transfer device 1 may be movable in the width direction.

Further, as indicated by the two-dot chain line in FIG. 2, the flow path forming member 5 and the partition member 3 are inclined toward the water surface WL toward the downstream side in the discharge direction (the downstream side in the discharge direction is higher). ), and water is discharged into the flow path S from the discharge port 7a along the tilted attitude of the flow path forming member 5 . By adopting this mode, the flow of water generated in the flow path S is less likely to be attenuated by discharging water from the discharge port 7a, and the scum Sc can be transported over a longer distance. In addition, since a relatively strong water flow occurs in a portion of the flow path S near the discharge port 7a, even if the position of the inflow port 3a is slightly deeper than the water surface WL, the scum Sc floating on the water surface WL It is difficult to cause a problem such that it becomes difficult for the air to flow in from the inflow port 3a.

Next, modified examples of the transfer device shown in FIGS. 1 to 3 will be described with reference to FIGS. 4 to 10. FIG. In the modifications described below, differences from the embodiment shown in FIGS. 1 to 3 will be mainly described. , will be described with the reference numerals that have been used so far, and overlapping descriptions may be omitted. 4 to 10 show the state corresponding to FIG. 3, and for the sake of simplification of the drawing, only the ejection port 7a of the ejection member 7 is shown, and the partition member 3 and the flow path forming member 5 are shown. , schematically shows the cross-sectional shape.

FIG. 4(a) is a diagram showing a transfer device of a first modified example. In this modification, the upper end portion 51 of the flow path forming member 5 is lower than the inlet 3 a of the partition member 3 , that is, the upper end portion 51 of the flow path forming member 5 is positioned closer to the inlet 3 a of the partition member 3 . The flow path forming member 5 and the partition member 3 are arranged so as to be deeper than the water surface WL. As a result, the radial distance Di between the partition member 3 and the flow path forming member 5 becomes narrower toward the suction port 5a, and the flow velocity of water flowing in the peripheral region R1 becomes faster toward the suction port 5a. As a result, the scum Sc can be more reliably sucked from the suction port 5a.

Further, as indicated by the dashed line, a small-diameter pipe material is used for the flow path forming member 5, and the opening length L3 in the width direction of the inlet 3a formed by notching the upper portion thereof is equal to the width of the suction port 5a. It may be shorter than the opening length L2 in the direction. By doing so, the flow velocity of the water flowing into the inlet 3a is increased, and the scum Sc can be flowed more smoothly from the inlet 3a. 4(a), the center of the partition member 3 indicated by the dashed line is aligned with the center of the channel forming member 5 in the radial direction. is substantially the same at any point. However, like the partition member 3 indicated by the solid line, the position of the flow path forming member 5 may be lowered so that the interval Di becomes narrower toward the suction port 5a.

FIG.4(b) is a figure which shows the transfer apparatus of a 2nd modification. In this modification, the flow path forming member 5 and the partition member 3 are arranged such that the upper end portion 51 of the flow path forming member 5 is higher than the inlet 3 a of the partition member 3 . As a result, the upper portion S1 of the flow path S is located above the inlet 3a, and the radial distance Di between the partition member 3 and the flow path forming member 5 increases toward the suction port 5a. In this second modification, a wide peripheral region R1 can be ensured.

In addition, as indicated by the dashed line, the partition member 3 is formed using a pipe material with a small diameter, and the radial center of the partition member 3 is aligned with the radial center of the flow path forming member 5 . and the flow path forming member 5 may be the same at any point. Although the flow path forming member 5 may be arranged so that its upper end portion 51 is positioned above the water surface WL, the portion of the flow path forming member 5 that protrudes above the water surface WL causes the width of the water surface WL to increase. Since the flow of water in the direction is blocked, it is preferable to dispose the flow path forming member 5 at a position where the upper end portion 51 is submerged in water. Furthermore, if the depth of the upper end portion 51 of the flow path forming member 5 from the water surface WL is set to 20 mm or more, the scum Sc is less likely to be placed on the upper end portion 51, which is preferable.

FIG. 5(a) is a diagram showing a transfer device of a third modification. The transfer device 1 of this third modification differs from the transfer device 1 shown in FIG. 3 in that it includes a flat partition member 3 and a flow path forming member 5 . Specifically, the partition member 3 is formed by notching the upper end portion of a pipe having a height about 1/2 of its width W1. The flow path forming member 5 is formed by notching the lower end portion of a pipe having a height about 1/2 of its width W2. That is, the partition member 3 and the flow path forming member 5 in this modification have a flat shape in which the dimension in the width direction perpendicular to the discharge direction in the horizontal plane is longer than the dimension in the height direction. By adopting the partition member 3 having a flat shape in this way, it becomes easy to widen the inlet 3a in the width direction. If the inlet 3a is widened in the width direction, the scum Sc floating over a wider range of the water surface WL can flow into the peripheral region R1. In addition, by adopting the partition member 3 and the flow path forming member 5, both of which are flat, the flow of the sewage W in the running water section 91 (see FIG. 1) is less likely to be hindered, and the resistance to the flow of the sewage W can be reduced. is also possible.

In addition, as indicated by the dashed line, the position of the flow path forming member 5 may be lowered so that the upper end portion 51 of the flow path forming member 5 is lower than the inlet 3 a of the partition member 3 . Further, instead of the flat-shaped partition member 3, the partition member 3 described above and shown in FIG. 3 may be used as indicated by the two-dot chain line.

FIG.5(b) is a figure which shows the transfer apparatus of a 4th modification. The transfer device 1 of this modification is different from the transfer device 1 of the third modification shown in FIG. , the flow path forming member 5 and the partition member 3 are arranged. As a result, the upper portion S1 of the flow path S is located above the inlet 3a. Instead of the flat flow path forming member 5, the flow path forming member 5 shown in FIG. 3 may be used as indicated by the dashed line.

FIG. 6(a) is a diagram showing a transfer device of a fifth modification. The transfer device 1 of this modified example differs from the transfer device 1 shown in FIG. 3 in the shape of the partition member 3 . As shown in FIG. 6(a), the partition member 3 has a pair of vertically erected walls 32 and a bottom 33 horizontally connecting the lower ends of the pair of walls 32. is open and has a U-shaped cross section. Here, if the inner peripheral surface of the partition member 3 is arc-shaped as in the embodiment shown in FIG. 3 or the modified examples shown in FIGS. and the opening length L3 of the inlet 3a of the partition member 3 (see FIG. 4A), when moving one of the partition member 3 and the flow path forming member 5 in the vertical direction, the partition The member 3 and the flow path forming member 5 may interfere with each other. According to this modification, the wall portion 32 standing vertically is positioned on the side of the flow path forming member 5, so that the partition member 3 and the flow path forming member 5 are separated from each other as indicated by the double arrow in the figure. When moving one of them in the vertical direction, the partition member 3 and the flow path forming member 5 are less likely to interfere with each other. This improves the degree of freedom when moving one of the partition member 3 and the flow path forming member 5 in the vertical direction. Also, the partition member 3 can be easily manufactured.

The partition member 3 and the flow path forming member 5 may be arranged so that the upper end portion 51 of the flow path forming member 5 is at the same height as the inlet 3a of the partition member 3. , the upper end portion 51 of the flow path forming member 5 may be set at a position lower than the inlet 3 a of the partition member 3 . As indicated by the two-dot chain line, the partition member 3 may be formed by curving the upper end portion 321 of the wall portion 32 so as to expand outward in the width direction, or the wall portion 32 and the bottom portion 33 may be formed. An arc-shaped corner portion 34 may be provided at the connecting portion of the .

FIG.6(b) is a figure which shows the transfer apparatus of a 6th modification. The transfer device 1 of this modification is different from the transfer device 1 of the fifth modification shown in FIG. , the flow path forming member 5 and the partition member 3 are arranged. Note that the bottom portion 33 of the partition member 3 may be formed in an arcuate shape that protrudes downward, as indicated by the dashed line.

FIG. 7(a) is a diagram showing a transfer device of a seventh modification. In this modification, the shape of the partition member 3 is different from that of the transfer device 1 shown in FIG. As shown in FIG. 7(a), the partition member 3 of this modified example has a second curved portion 35 that curves outward in the width direction at the upper end portion. As a result, the inlet 3a of the partition member 3 is widened, and the scum Sc floating over a wider range of the water surface WL can flow from the inlet 3a into the peripheral region R1. Alternatively, the flow path forming member 5 may be arranged at a position where the upper end portion 51 of the flow path forming member 5 is lower than the inlet 3a of the partition member 3, as indicated by the dashed line.

FIG. 7(b) is a diagram showing a transfer device according to an eighth modification. The transfer device 1 of this modification is the transfer device 1 of the seventh modification shown in FIG. , the partition member 3 and the flow path forming member 5 are arranged. In addition, in this modified example, the portion where the radial distance Di between the partition member 3 and the flow path forming member 5 is the narrowest is set substantially equal to the widthwise opening length L2 of the suction port 5a. As indicated by the dashed line, the partition member 3 having a small diameter is employed, and the radial distance Di between the second curved portion 35 and the flow path forming member 5 is set to be less than the widthwise opening length L2 of the suction port 5a. may also be shortened to increase the flow velocity of water through this interval Di.

FIG. 8 is a diagram showing a transfer device of a ninth modification. In this modification, the depth Dp1 from the water surface WL and the opening length L3, and The depth Dp3 from the water surface WL and the opening length L2 of the suction port 5a can be adjusted.

In FIG. 8(a), the partition member 3 has a pair of 1/2 arc-shaped partition member structures 30, as shown enclosed by a two-dot chain line square. As shown in b), the partition member 3 is configured by partially overlapping the pair of partition member structures 30 . In FIGS. 8(a) and 8(b), the portion where the pair of partition member structures 30 overlap is indicated by the symbol β. The pair of partition member structures 30 can rotate about the center O in the radial direction to change the size of the overlapping portion β.

From the state of the partition member 3 shown in FIG. 8(a), when the overlapping portion β is reduced as shown in FIG. 8(b), the depth Dp1 of the inlet 3a from the water surface WL becomes shallower, becomes narrower. Conversely, although not shown, if the overlapping portion β is increased, the depth Dp1 of the inlet 3a from the water surface WL is increased, and the opening length L3 of the inlet 3a is increased. Thus, by changing the size of the portion β where the pair of partition member structures 30 overlap, the depth Dp1 from the water surface WL and the opening length L3 of the inlet 3a can be adjusted. In FIG. 8, an example of adjusting the depth Dp1 from the water surface WL of the inlet 3a when the height of the water surface WL is constant has been described. It may be adjusted so that the depth Dp1 of the inlet 3a from the water surface WL is constant.

As shown in FIGS. 8A and 8B, the flow path forming member 5 includes a flow path forming member main body 50 having an arcuate cross section obtained by cutting out approximately one-third of the lower portion of the cylindrical body, A pair of slide pieces 53 are provided at both end portions of the notched portion of the flow path forming member main body 50 . Each of the pair of slide pieces 53 has a ⅕ arc shape, the lower end portion of which protrudes downward from the flow path forming member body 50, and the suction port 5a is formed between these lower end portions. Further, the pair of slide pieces 53 slide along the inner peripheral surface 50a of the passage forming member main body 50, thereby adjusting the depth Dp3 from the water surface WL and the opening length L2 of the suction port 5a. can be done.

Specifically, from the state of the flow path forming member 5 shown in FIG. 8( a ), each of the pair of slide pieces 53 is moved to the flow path as indicated by the dotted arc-shaped arrows in FIG. 8( b ). When the forming member main body 50 is slid inside (upward), the depth Dp3 of the suction port 5a from the water surface WL becomes shallower, and the opening length L2 of the suction port 5a becomes wider. Although not shown, on the contrary, when each of the pair of slide pieces 53 is slid to the outside (downward) of the flow path forming member main body 50, the depth Dp3 of the suction port 5a from the water surface WL increases, and the suction port 5a increases. The opening length L2 of the mouth 5a is narrowed.

Note that the configuration of the partition member 3 in the modified example shown in FIG. Further, by dividing the pair of partition member structures 30 and the slide piece 53 into a plurality of pieces in the discharge direction and adjusting each of them, for example, the depth Dp1 of the inlet 3a from the water surface WL and the opening of the suction port 5a The length L2 and the like can be made different between the upstream side in the ejection direction and the downstream side in the ejection direction.

FIG. 9 is a diagram showing a transfer device of a tenth modification. In the transfer device 1 of this modified example, the flow path forming member 5 is connected to one end (the left end in the drawing) of the partition member 3 in the width direction, and is supported by the partition member 3 in a so-called cantilevered state. is. Conceptually, each of the flow path forming member 5 and the partitioning member 3 has a common portion 4 indicated by a dotted line, which is partly shared with each other, as indicated by a two-dot chain box. This makes it easier to secure the radial distance Di between the partition member 3 and the flow path forming member 5 . In addition, in this modified example, the inner peripheral surface 4a is configured as a continuous curved surface from the partition member 3 to the flow path forming member 5 . As a result, the flow of water from the inlet 3a of the partition member 3 toward the suction port 5a becomes a smooth flow along the inner peripheral surface 4a, and the scum Sc is smoothly sucked from the suction port 5a of the flow path forming member 5. can be done. The height of the upper end portion 51 of the flow path forming member 5 (the depth from the water surface WL) is the height of the other end (the right end in the drawing) of the partition member 3 in the width direction (the depth from the water surface WL). depth), but as shown in FIG. It is preferable because the scum Sc easily flows into the inlet 3a from both sides in the width direction.

FIG. 10 is a diagram showing a transfer device of an eleventh modification. In this modification, the partition member 3 is omitted, and the flow path forming member 5 is arranged in a posture in which the suction port 5a thereof faces upward. In this modification, when water is discharged from the discharge port 7a into the flow channel S of the flow channel forming member 5, it is drawn into the flow of the discharged water and flows from the suction port 5a as shown in FIG. A flow of water is generated in the direction of being sucked into the channel S. As a result, as conceptually shown in FIG. 10, the scum Sc floating on the water surface WL of the flowing water portion 91 gathers toward the suction port 5a and is sucked into the flow path S from the suction port 5a. be The scum Sc sucked into the flow path S moves in the transfer direction due to the flow of water discharged from the discharge port 7a.

As shown by the circular double-headed arrow, the flow path forming member 5 is rotated around the center O in the radial direction, and the direction in which the suction port 5a is opened, shown by the straight arrow, is set at the angle α. It is good also as the aspect which can be changed in a range. Further, as the flow path forming member 5, as indicated by the dashed line, the flat flow path forming member 5 in the transfer device 1 of the third modified example of FIG. 5(a) may be used. In addition, in the embodiment shown in FIG. 3 and the modified example having the partition member 3 shown in FIG. 4 and the like, a mode in which the partition member 3 is rotated about the center of rotation in the radial direction may be employed.

Next, a second embodiment of the transfer device of the present invention, which is different in installed equipment, will be described. Also in the second embodiment described below, the same reference numerals as those used in the embodiments shown in FIGS. may be omitted.

FIG. 11 is a schematic configuration diagram of a lying down structure provided with a transfer device according to a second embodiment of the present invention. An overpass structure is a structure in which, when a sewage pipe crosses a river or railway, the overpass pipe is installed at a position lower than the river, etc., and the sewage flows due to the water level difference between the upstream and downstream pipes. Say.

In FIG. 11, the overpass structure 8 allows the sewage DR to flow from the left side to the right side of the river Ri. . As shown in FIG. 11 , the overpass structure 8 includes an upstream pipeline 81, an upstream manhole 82, a overpass pipe 83, a downstream manhole 84, and a downstream manhole 84 in the order described from the upstream side to the downstream side of the flow of sewage DR. A side conduit 85 is provided. The upstream pipeline 81 is connected to the upstream manhole 82, and the overpass pipe 83 is connected to the upstream manhole 82 and the downstream manhole 84 at a position lower than the river Ri. The downstream pipeline 85 is connected to the downstream manhole 84 at a position lower than the position where the upstream pipeline 81 is connected to the upstream manhole 82 . At the bottom of the upstream manhole 82 and the bottom of the downstream manhole 84, sediment pits 821 and 841 are formed, respectively.

The sewage DR that has flowed through the upstream pipeline 81 flows from the upstream manhole 82 through the overhanging pipe 83 by a so-called reverse siphon effect caused by the water level difference between the upstream pipeline 81 and the downstream pipeline 85, Further, it flows from the downstream manhole 84 through the downstream pipeline 85 .

Here, the upstream pipeline 81 is provided with a transfer device 1 having the same configuration as the transfer device 1 shown in FIGS. In the transfer device 1 , the downstream end 52 of the flow path forming member 5 is positioned near the region where the upstream pipe line 81 connects to the upstream manhole 82 . 1 to 3 described above, when water is discharged from the discharge port 7a, the scum Sc floating on the water surface WL of the sewage DR is sucked into the flow path forming member 5, and then flows upstream. The sewage is transferred toward the side manhole 82 and blown out from the downstream end 52 of the flow path forming member 5 to be collected on the water surface WL of the sewage DR in the upstream side manhole 82 .

The scum Sc collected on the water surface WL of the sewage DR in the upstream manhole 82 is removed by opening the iron cover of the upstream manhole 82, and part of it is drawn into the flow of the sewage DR and is discharged into the down pipe. Flow into 83. In addition, sand or the like that has settled in the earth and sand pool 821 also flows into the overhanging pipe 83 due to the flow of the sewage DR. The down pipe 83 is provided with a transfer device 1 having the same configuration as the transfer device 1 shown in FIGS. 1 to 3 and a sediment transfer device 2 for transferring sediment such as sand.

FIG. 12 is a cross-sectional view taken along the line CC of the lay-over pipe shown in FIG. 11. FIG. Note that FIG. 12 omits both side regions in the width direction and an intermediate region in the vertical direction of the down pipe 83 .

As shown in FIG. 12 , the down pipe 83 is filled with sewage DR, and the water surface WL of the sewage DR is in contact with the ceiling surface 831 of the down pipe 83 . In the transfer device 1, the depth Dp1 of the inlet 3a of the partition member 3 and the upper end portion 51 of the flow path forming member 5 from the water surface WL, that is, the ceiling surface 831 is set to 20 mm or more. When the depth Dp1 from the water surface WL is less than 20 mm, there is a gap between the ceiling surface 831 of the downhill pipe 83 and the inlet 3a of the partition member 3, or between the ceiling surface 831 of the downhill pipe 83 and the flow path forming member 5. The scum Sc is likely to be caught between the upper end portion 51 of the and is not preferable.

When water is discharged from the discharge port 7a of the discharge member 7 into the flow channel S of the flow channel forming member 5, the water flows in the direction of being sucked into the flow channel S from the suction port 5a. A flow of water is generated in the region R1, and a flow of water toward the suction port 5a is generated in the peripheral region R1. As a result, on the water surface WL (in the vicinity of the ceiling surface 831), a flow is generated in a direction that gathers at the inlet 3a of the partition member 3, and the scum Sc floating in the vicinity of the ceiling surface 831 gathers and flows from the inlet 3a to the surroundings. It flows into region R1. The scum Sc that has flowed into the peripheral region R1 is sucked into the flow path S through the suction port 5a, and the sucked scum Sc is transported to the downstream manhole 84. As shown in FIG. As a result, the problem that the scum Sc adheres to the ceiling surface 831 of the lay down pipe 83 and stays in the lay down pipe 83 can be solved.

A sediment transfer device 2 for transferring sediment is provided on the bottom surface 832 on the bottom side of the down pipe 83 . In addition, the bottom of the overpass pipe 83 is modified to provide a pair of sloping surfaces 833 sloping downward toward the sediment transporter 2 by a concrete modified portion indicated by cross-hatching. The sediment transfer device 2 includes a trough 21 , a bottom-side channel forming member 25 and a bottom-side discharge member 27 . The trough 21 forms a groove M extending in the direction from the upstream side manhole 82 toward the downstream side manhole 84 (see FIG. 11) on the bottom side of the downspout pipe 83 . The upwardly opening portion of the trough 21 serves as the opening 21a of the groove M, and the opening 21a of the groove M is connected to the lower end of the inclined surface 833 . The bottom-side flow path forming member 25 extends in the same direction as the trough 21 and has substantially the same length as the trough 21 . The bottom-side channel forming member 25 forms the bottom-side channel S2 and partitions the bottom-side channel S2 and the groove M. As shown in FIG. Further, the bottom-side flow path forming member 25 has an in-groove suction port 25a located in the groove M connected to the bottom-side flow path S2. The bottom-side discharge member 27 has a bottom-side discharge port 27a, and water is discharged into the bottom-side channel S2 from the bottom-side discharge port 27a.

Sediments such as sand contained in the sewage DR that has flowed into the downspout pipe 83 settle while the sewage DR flows downstream, and flow down toward the trough 21 along the inclined surface 833 . Sediment that has flowed down from the inclined surface 833 enters the groove M through the opening 21 a of the trough 21 . In addition, sand or the like accumulated in the sediment pool 821 of the upstream manhole 82 shown in FIG.

When water is discharged into the bottom channel S2 from the bottom discharge port 27a, sediment deposited on the bottom of the groove M by being drawn into the flow of the discharged water is formed by the curved arrow shown in FIG. As shown in FIG. Furthermore, in the bottom-side flow passage S2 of the bottom-side flow-path forming member 25, the sucked sediment is moved downstream in the discharge direction (downstream manhole 84 side) by the flow of water discharged from the bottom-side discharge port 27a. move towards As a result, sediments such as sand can be transferred to the earth and sand pool 841 of the downstream manhole 84 without remaining in the downspout pipe 83 .

The present invention is not limited to the above-described embodiments, and can be modified in various ways within the scope of the claims.

In addition, even if the constituent elements are included only in the description of each of the embodiments and modifications described above, the constituent elements may be applied to other embodiments and other modifications.

Further, the transfer device described so far includes a flow path forming member that forms a flow path and is provided with a suction port connected to the flow path and submerged in water;
a discharge port for discharging a fluid into the flow path,
The suction port functions as an opening for sucking an object floating on the surface of the water into the flow channel by discharging fluid into the flow channel,
The flow path functions as a path along which the object to be transferred that has been sucked into the flow path moves downstream in the discharge direction of the fluid as the fluid is discharged into the flow path. It is characterized by

Further, in this transfer device, a partition is provided in which a peripheral area around the flow path forming member and another area in the water are partitioned so that the peripheral area is inside, and an inlet connected to the peripheral area is provided. Equipped with components,
The inflow port functions as an opening that allows the object to be transferred floating on the surface of the water to flow into the peripheral area by discharging fluid into the flow path,
The suction port may function as an opening that sucks into the channel the object to be transferred that has flowed into the peripheral area by discharging fluid into the channel.

Further, the transfer device described so far forms a flow path, and is provided with a suction port that connects to the flow path and is submerged in water. a passage forming member;
a discharge port in the flow path for discharging a fluid in the axial direction of the flow path forming member;
The suction port extends in the direction in which the flow path forming member extends, and functions as an opening for sucking an object floating on the surface of the water into the flow path by discharging fluid into the flow path. is a
The flow path functions as a path along which the object to be transferred that has been sucked into the flow path moves downstream in the discharge direction of the fluid as the fluid is discharged into the flow path. It is characterized by

Further, in this transfer device, a peripheral area around the flow path forming member and other areas in the water are partitioned so that the peripheral area is located inside, and an inlet connected to the peripheral area is provided to provide a water surface. A pipe-shaped partition member extending substantially parallel to the
The inflow port is configured to face upward and functions as an opening that allows the object to be transferred floating on the surface of the water to flow into the peripheral area by discharging fluid into the flow path,
The suction port is opened in the peripheral area and functions as an opening for sucking the transferred object flowing into the peripheral area into the flow path by discharging the fluid into the flow path. There may be.

Further, the transfer device may be movable in a direction perpendicular to the ejection direction of the fluid in a horizontal plane.

By doing so, the objects to be transferred floating in a wider range on the water surface can be caused to flow into the peripheral area from the inlet and be transferred without increasing the number of transfer devices.

Further, the transfer device described so far forms a flow path, and is provided with a suction port that connects to the flow path and is submerged in water. A transfer device comprising a path forming member and a discharge port in the flow path for discharging a fluid in the axial direction of the flow path forming member,
The suction port is configured to face upward, and extends in the direction in which the flow path forming member extends. It functions as an opening that sucks into the road,
The flow path functions as a path along which the object to be transferred that has been sucked into the flow path moves downstream in the discharge direction of the fluid as the fluid is discharged into the flow path. It is characterized by

Here, in the flow path forming member, the suction port may open toward the water surface from a position lower than the water surface, and may be positioned at a depth of 200 mm or less from the water surface. In addition, the flow path forming member may have the suction port opening in a direction other than the water surface. Moreover, when the height of the water surface changes, the flow path forming member may move in a vertical direction to change the height of the suction port. Furthermore, the flow path may have a portion on the side of the suction port that narrows as it approaches the suction port. Further, the flow path forming member may have a shape obtained by cutting out part of a cylindrical body. Furthermore, the ejection port may be of a perfect circle or of a flat shape, and a plurality of the ejection ports may be provided at intervals in the ejection direction. Furthermore, the fluid ejected from the ejection port may be a liquid, a gas, or a gas-liquid mixture. Further, the ejection port may eject a fluid of 300 liters or more and 3000 liters or less per minute at a pressure of 0.3 MPa or less.

According to this transfer device, the fluid is discharged from the discharge port into the flow path, and the object to be transferred that floats on the water surface is drawn into the flow of the discharged fluid, and is transferred from the suction port. sucked into the channel. Furthermore, in the flow path, the sucked object to be transferred moves toward the downstream side in the discharge direction due to the flow of water generated by the fluid. Thus, the flow of water once generated in the flow path is much more powerful than the air flow or blowing flow in the transfer device described in Patent Document 1, because the flow path is surrounded by the flow path forming member. It is hard to attenuate, and the object to be transferred can be transferred over a long distance. Furthermore, a flow is generated on the water surface in the direction of being sucked into the suction port, so that the transfer substance floating on the water surface can be sucked into the flow path over a wide range.

Furthermore, due to the flow on the water surface in the direction of being sucked into the suction port, there are cases where the area from which the object to be transferred is removed extends in the transfer direction on the water surface. Hereinafter, the area on the water surface from which the object to be transferred has been removed may be referred to as a removal area on the water surface. For example, when the transfer device is provided in a conduit or the like, in which the received sewage flows in the transfer direction, a flow in the transfer direction is also generated on the surface of the water due to the flow of the received sewage, and this flow causes scum (objects to be transferred). ) flows in the removal area of the water surface also in the transport direction. In addition, when the scum flowing in the removal area on the water surface comes into contact with the scum floating on the water surface in a collected state, a part of the scum collapses, and the collapsed part is sucked into the flow path through the suction port. or flow through the removal area of the water surface and move in the transport direction. As a result, the scum floating on the surface of the water in a mass can be efficiently transported while being broken up little by little.

As a result, the number of discharge ports and pipes for supplying fluid to the discharge ports can be reduced, and a simple structure can be adopted. Furthermore, the amount of fluid ejected from the ejection port can also be suppressed. In addition, as described above, since it is sufficient that the water flow is once generated in the flow path, even a weak pressure of 0.1 MPa or less may be sufficient for the pressure of the fluid to be discharged from the discharge port. .

Further, the transfer device described so far forms a flow path, and is provided with a suction port that connects to the flow path and is submerged in water. a passage forming member;
a discharge port for discharging a fluid in the flow path in the axial direction of the flow path forming member;
A peripheral area around the flow path forming member and other areas in water are partitioned so that the peripheral area is inside, and an inlet connected to the peripheral area is provided and extends substantially parallel to the water surface. and a pipe-shaped partition member located in the
The inflow port is configured to face upward and functions as an opening for allowing an object to be transferred floating on the surface of the water to flow into the peripheral area by discharging fluid into the flow path,
The suction port opens downward in the peripheral area, and serves as an opening for sucking the object that has flowed into the peripheral area into the flow path by discharging the fluid into the flow path. It works and
The flow path functions as a path along which the object to be transferred that has been sucked into the flow path moves downstream in the discharge direction of the fluid as the fluid is discharged into the flow path. It is characterized by

Here, the partition member may be such that the inlet opens toward the water surface from a position lower than the water surface, and is positioned at a depth of 200 mm or less from the water surface. Moreover, when the height of the water surface changes, the partition member may move in a vertical direction to change the height of the suction port. Furthermore, the peripheral region may have a portion on the side of the inflow port that narrows as it approaches the inflow port. Further, the partition member may have a curved portion that enters the center side in the width direction at the upper end portion. Further, the flow path forming member has the suction port opened in the peripheral region, and the upper end portion is positioned at substantially the same height as the inlet, or positioned below the inlet. Any one positioned above the inlet may be used. Further, the partition member may have a shape obtained by notching the upper end portion of a cylindrical body. Further, the partitioning member and the flow path forming member may be configured by curved surfaces having continuous inner peripheral surfaces from the partitioning member to the flow path forming member. In addition, the flow path forming member shares a portion with a portion of the partition member while being spaced apart from the other end of the partition member in the width direction. may be connected to the one end side.

By adopting the aspect including the partition member, the peripheral area is separated from other areas by the partition member in the water, so that the material to be transferred cannot flow into the peripheral area from the inlet. Accelerated, the object to be transferred floating on the surface of the water can be efficiently flowed into the peripheral area. Furthermore, since the peripheral area is partitioned from other areas by the partition member, the flow of water from the inflow port to the suction port is not obstructed, and the object to be transferred that has flowed into the peripheral area is not blocked. flows through the peripheral area and is smoothly sucked from the suction port.

In addition, when the transfer device is provided in a conduit or the like that allows the received water to flow in the transfer direction, the flow of the received water causes the scum (object to be transferred) to flow in the removal area of the water surface in the transfer direction. . In addition, when the scum flowing through the removed area on the water surface comes into contact with the scum that remains in a lump on the water surface, a part of the scum collapses, and the collapsed part flows into the peripheral area from the inlet. , and moves in the flow path after being sucked through the suction port, or moves in the transfer direction while flowing through the removal area of the water surface. As a result, the scum that has accumulated on the surface of the water can be efficiently transported while being broken up little by little.

Further, in this transfer device, the flow path forming member may have a flat shape in which the dimension in the width direction perpendicular to the discharge direction of the fluid in the horizontal plane is longer than the dimension in the height direction.

By adopting a flat-shaped flow path forming member in this way, it becomes easy to widen the suction port in the width direction. By widening the suction port in the width direction, the object to be transferred floating in a wider range on the water surface can be sucked into the flow path. In addition, by forming the flow path forming member into a flat shape, the entire device can be made thin, and can be suitably used for shallow water channels and the like. Furthermore, by forming the flow path forming member into a flat shape, it becomes difficult to block the flow of sewage, etc., such as a culvert provided with the transfer device, and it is possible to reduce the resistance to the flow of sewage, etc. .

Further, in this transfer device, the partition member may have a flat shape in which the dimension in the width direction perpendicular to the discharge direction of the fluid in the horizontal plane is longer than the dimension in the height direction.

By adopting a flat-shaped partition member in this way, it becomes easy to widen the inlet in the width direction. By widening the inlet in the width direction, the object to be transferred that floats in a wider range on the water surface can flow into the peripheral area. In addition, by forming the partition member into a flat shape, the entire device can be made thin, and can be suitably used in a shallow water channel or the like. Furthermore, by forming the partition member into a flat shape, it becomes difficult to block the flow of sewage, etc., such as a culvert provided with the transfer device, and it is possible to reduce the resistance to the flow of sewage, etc.

Reference Signs List 1 Transfer device 3 Partition member 3a Inlet 5 Flow path forming member 5a Suction port 51 Upper end portion 7 Discharge member 7a Discharge port 9 Conduit S Flow path Sc Scum R1 Peripheral area W Sewage

Claims (1)

a channel-forming member that forms a channel and is provided with a suction port connected to the channel and submerged in water;
a discharge port for discharging a fluid into the channel;
a partition member that is provided with an inlet that extends substantially parallel to the water surface and is submerged in water, and surrounds the flow path forming member;
The inflow port functions as an opening that allows an object to be transferred floating on the surface of the water to flow into the region between the partition member and the flow path forming member as the fluid is discharged into the flow path. ,
The suction port functions as an opening that sucks into the channel the object to be transferred that has flowed into the region between the partition member and the channel forming member by discharging the fluid into the channel. is a
The flow path functions as a path along which the object to be transferred that has been sucked into the flow path moves downstream in the discharge direction of the fluid as the fluid is discharged into the flow path. ,
The transfer device, wherein the distance between the partition member and the flow path forming member is narrowed toward the suction port.

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