JP7440959B2 - Transfer device - Google Patents

Description

The present invention relates to a transfer device for transferring objects floating on a water surface.

BACKGROUND ART A water conduit, settling basin, etc. of a sewage treatment plant is provided with a transfer device that transfers objects such as scum floating on the water surface toward a scum pit or the like (see, for example, Patent Document 1).

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

Japanese Unexamined Patent Publication No. 7-303883

However, in the transfer device 6 described in Patent Document 1, the pressure water etc. discharged from the spray nozzle 61 diffuses, and it is difficult to generate an air current etc. over a wide range on the water surface that can transfer the transferred object. . Therefore, in FIG. 13, the area to be transported (scum Sc ) can be transferred to a limited area on the water surface. As a result, a large number of spray nozzles 61 are arranged at intervals on the water surface where the scum Sc floats (in the figure, the scum floating in a mass on the water surface is labeled with Sc0). In addition, a large number of pipes 62 for supplying pressurized water and the like to the large number of spray nozzles 61 are also required, resulting in a large-scale apparatus. Moreover, a large amount of pressurized water and the like to be discharged from a large number of spray nozzles 61 is also required. Furthermore, in the mode in which air is discharged from the spray nozzle 61, the scum Sc may dry and harden due to the discharged air. Since the scum Sc that has hardened in this way becomes difficult to move on the water surface, there is also the problem that even more air must be discharged.

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

A transfer device of the present invention that solves the above object includes a flow path forming member having an arc-shaped cross section, which forms a flow path, and is provided with a suction port connected to the flow path and submerged in water below .
a discharge port that discharges fluid into the flow path;
an inlet extending substantially parallel to the water surface and submerged in the water is provided above , and a partition member having an arcuate cross section surrounding the flow path forming member;
The flow path forming member extends substantially parallel to the partition member,
The inflow port functions as an opening that allows objects to be transported floating on the water surface to flow into a region between the partition member and the flow path forming member by discharging fluid into the flow path. ,
The suction port functions as an opening that sucks into the flow path the object to be transferred that has flowed into the area between the partition member and the flow path forming member by discharging fluid into the flow path. It is a thing,
The flow path functions as a path through which the object to be transported sucked into the flow path moves toward the downstream side in the fluid discharge direction by discharging fluid into the flow path. ,
The radial distance between the partition member and the flow path forming member is characterized in that it becomes narrower toward the suction port.

According to the present invention, it is possible to provide a transfer device that can suppress the amount of fluid to be ejected and has a simple structure to transfer objects floating on the water surface.

FIG. 2 is a plan view from above of a water conduit equipped with a transfer device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line AA of the water conduit shown in FIG. 1. FIG. 2 is a sectional view taken along line BB of the transfer device shown in FIG. 1. FIG. (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 device of a 9th modification. It is a figure which shows the transfer device of the 10th modification. It is a figure which shows the transfer device of the 11th modification. FIG. 2 is a schematic configuration diagram of an overhang structure provided with a transfer device according to a second embodiment of the present invention. 12 is a sectional view taken along the line CC of the overhang pipe shown in FIG. 11. FIG. FIG. 2 is a schematic diagram of the transfer device described in Patent Document 1 viewed from above.

Embodiments of the present invention will be described below with reference to the drawings. The transfer device of the present invention can be employed in various facilities and structures for transferring objects floating on the water surface, such as a water conduit or sedimentation basin in a sewage treatment plant, or an underground structure for a sewage pipe. It can be suitably applied to. In this embodiment, a transfer device that is installed in a water conduit of a first sedimentation tank or a final sedimentation tank and transports scum floating on the water surface will be described as an example. That is, in this embodiment, scum corresponds to an example of the object to be transported. A water conduit is a waterway in a sewage treatment plant that distributes wastewater received from a settling basin, aeration tank, etc. to a plurality of settling basins, and scum floating on the water surface is collected in a scum pit.

FIG. 1 is a plan view of a water conduit provided with a transfer device according to an embodiment of the present invention, viewed from above, and FIG. 2 is a cross-sectional view taken along line AA of the water conduit shown in FIG. In addition, in FIG. 1, a part of several settling ponds P to which wastewater is distributed from the water conduit 9 is also shown.

As shown in FIG. 1, the water conduit 9 is a rectangular waterway that is long in the left and right direction when viewed from above, and includes a running water section 91 that receives wastewater sent from a settling pond (not shown), etc. It has a scum pit 92 separated by a blocking wall 93. The flowing water section 91 receives wastewater from the left side of the figure, and the received wastewater flows toward a scum pit 92 provided on the right side of the figure, and is blocked by a blocking wall 93. Further, a plurality of sedimentation basins P arranged in parallel in the direction in which wastewater flows through the flowing water part 91 are connected to the flowing water part 91 via communication ports 94 . The sewage flowing through the water flow section 91 is distributed by flowing into each settling tank P from each communication port 94, and the sewage flowing into each settling tank P flows downward in the figure.

As shown in FIGS. 1 and 2, the water flow section 91 is provided with a transfer device 1. Before this transfer device 1 is driven, scum Sc is floating on the water surface WL (see FIG. 2) of the waste water W in the water flow section 91 (see FIG. 2). In FIGS. 1 and 2, as will be described in detail later, water is discharged from the discharge port 7a of the transfer device 1, and the scum Sc is transferred to the right side of the figure and collected near the blocking wall 93. It shows the situation. That is, the scum Sc is transferred in the longitudinal direction of the flowing water section 91, and in FIGS. 1 and 2, the direction from the left side to the right side corresponds to the discharge direction in which the fluid is discharged, and the scum Sc is transferred in the direction in which the fluid is discharged. It also corresponds to Note that the lateral direction of the water flow section 91, that is, the direction perpendicular to the discharge direction in the horizontal plane may be hereinafter referred to as the width direction.

An opening 93a communicating with the scum pit 92 is formed in the blocking wall 93, and a gate 931 is provided to close this opening 93a. The gate 931 can slide vertically, for example, to open and close the opening 93a. When this gate 931 is slid so that its upper end is located below the water surface WL of the wastewater W blocked by the blocking wall 93, the scum Sc collected near the blocking wall 93 is removed from the wastewater. At the same time, it flows into the scum pit 92 through the opening 93a and over the gate 931. Note that the scum collected in the scum pit 92 is sent to a scum processor (not shown) and undergoes predetermined processing such as dehydration processing.

Next, the transfer device 1 will be explained in detail using FIGS. 1 to 3.

FIG. 3 is a sectional view taken along the line BB of the transfer device 1 shown in FIG. In FIG. 3, the direction toward the front side of the paper is the ejection direction, and the left-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 7. As shown in FIGS. 1 and 2, the partition member 3 extends in the discharge direction in the water flow section 91, and has a total length slightly shorter than the length of the water flow section 91 in the longitudinal direction. . Further, the partition member 3 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 partition member 3 separates a peripheral region R1 around the channel forming member 5 and another region R2 in the wastewater W flowing through the water flow section 91, so that the peripheral region R1 is on the inside. It has an inlet 3a that is connected to the surrounding area R1 and submerged in the wastewater W. The partition member 3 of this embodiment has an arcuate cross section with approximately the upper third of the stainless steel cylinder having a diameter of 300 mm or more and 400 mm or less cut out. An open inlet 3a is formed. The opening length L3 in the width direction of the inlet 3a (see FIG. 4(a)) is set to 275 mm or more and 375 mm or less. Furthermore, the partition member 3 has a curved portion 31 extending toward the center in the width direction at the upper end portion, and the peripheral region R1 becomes narrower as the portion on the inlet port 3a side approaches the inlet port 3a. .

As shown in FIGS. 1 and 2, like the partition member 3, the flow path forming member 5 also extends in the discharge direction in the water flow section 91, and its overall length is approximately the same as that of the partition member 3. It is formed. Further, 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, this flow path forming member 5 forms a flow path S, and partitions this flow path S from a peripheral region R1. Further, the flow path forming member 5 has a suction port 5a that is connected to the flow path S and submerged in the waste water W. The flow path forming member 5 of this embodiment has an arcuate cross section with approximately the lower 1/6 of a stainless steel cylinder having a diameter of 150 mm or more and 200 mm or less. A suction port 5a is formed which is open toward the inside. The flow path forming member 5 is attached to the partition member 3 by a mounting member (not shown) so that the suction port 5a opens in the peripheral region R1 and the upper end portion 51 is at approximately the same height as the inlet port 3a. There is. In addition, in this embodiment, the radial center of the flow path forming member 5 (conceptually indicated by the symbol O in the figure) is made to coincide 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 approximately the same at any location.

The discharge member 7 has a water supply pipe 70 connected to its rear end and a discharge port 7a at its tip.As shown in FIG. 2, the discharge port 7a connects the flow path from the upstream side in the discharge direction. It is inserted into the forming member 5 (channel S). The water supplied from the water supply pipe 70 to the discharge member 7 is discharged from the discharge port 7a in a horizontal or substantially horizontal direction (see the solid right-pointing 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. In addition, as will be described in detail later, since it is sufficient that the water flow once occurs in the channel S, it may be sufficient even if the pressure of the water discharged from the discharge port 7a 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 or tap water received at a sewage treatment plant. Further, 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 has a long hole-shaped discharge port 7a formed at the distal end by flattening the distal end of a round water supply pipe. If a mode is adopted in which the discharge port 7a is formed by crushing a round pipe into a flat shape as described above, it becomes easy to manufacture the discharge port 7a. Further, as shown in FIG. 3, the opening length L1 of the discharge port 7a in the width direction is set longer than the opening length L2 of the suction port 5a in the width direction. Specifically, in this embodiment, the opening length L2 in the width direction of the suction port 5a is approximately 100 mm, the opening length L1 in the width direction of the discharge port 7a is approximately 120 mm, and the height H1 of the discharge port 7a is approximately 20 mm. It is. By forming the discharge port 7a into such a flat shape, it is possible to secure a wider range in which the flow velocity is increased than when the discharge port 7a has a perfectly circular shape. In some cases, it may be preferable to use the round water supply pipe as it is without crushing the tip of the round water supply pipe, thereby adopting a perfectly circular discharge port 7a.

Here, since the height of the water surface WL of the flowing water section 91 varies depending on the amount of wastewater received from the settling basin, etc., the height position where the transfer device 1 is installed is set in consideration of the fluctuation in the height of the water surface WL. Ru. Specifically, even if the height of the water surface WL of the flowing water section 91 changes, the inlet 3a of the partition member 3 is located at a position lower than the water surface WL, and the depth Dp1 from the water surface WL is Within 200 mm, the center of the height direction of the discharge port 7a has a depth Dp2 from the water surface WL of 50 mm to 300 mm, and the suction port 5a of the flow path forming member 5 has a depth Dp3 of 100 mm to 400 mm from the water surface WL. It is set to fit in. Further, the inlet 3a of the partition member 3 is located above the lower end portion of the opening 93a in the blocking wall 93, which is indicated by a dashed line in FIG.

The transfer device 1 may be fixed in its position, but depending on the fluctuation of the height of the water surface WL, the transfer device 1 as a whole or the partition member 3 may be It is also possible to adopt a mode in which one of the flow path forming members 5 is moved in the vertical direction. By doing so, the positions of the inlet 3a and the suction port 5a can be made to follow fluctuations in the height of the water surface WL, and can be maintained at a constant depth from the water surface WL. Note that the discharge port 7a may be moved in the vertical direction in accordance with the vertical movement of the flow path forming member 5, or the discharge port 7a may be fixed and only the flow path forming member 5 may be moved in the vertical direction. You can also use it as Alternatively, the transfer device 1 may be fixed, and the amount of wastewater received by the water flow section 91 may be controlled so 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, water is discharged from the discharge port 7a into the flow path S of the flow path forming member 5, and is drawn into the flow of the discharged water, and as shown in FIG. 3, from the suction port 5a. A flow of water in the direction of being sucked into the channel S occurs. This causes a flow of water flowing into the peripheral region R1 from the inlet 3a, and a flow of water toward the suction port 5a within the peripheral region R1. As a result, on the water surface WL of the water flow section 91, a flow is generated in the direction of converging at the inlet 3a of the partition member 3 (on the water surface WL near the inlet 3a, a flow is generated in the direction toward the inlet 3a, and at other locations) When water supplements this flow, a flow occurs.

In Figures 1 and 2, the flow of scum Sc is schematically shown, and the scum floating in a mass on the water surface is marked with a symbol Sc0 and lightly shaded. The scum Sc is surrounded by a chain line and is shaded with dark shading. The scum floating in clumps over the entire water surface WL of the water flow section 91 (see FIGS. 2 and 3) is partially broken down into small pieces due to the flow generated on the water surface in the direction of gathering at the inlet 3a. The scum becomes a lump of scum Sc and flows into the peripheral region R1 from the inlet 3a. By repeating this, as shown in FIG. 1, a region from which scum has been removed (removed region on the water surface) is generated on the water surface WL along the extending direction of the partition member 3, that is, the transport direction. Further, the scum Sc separated from the scum group Sc0 flows in the removal area on the water surface in the transport direction 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 a cluster of scum Sc0 and breaks a part of it, and the broken scum Sc also flows into the surrounding area R1 from the inlet 3a. The action of flowing in the transport direction through the removal area on the water surface is repeated.

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

In the wastewater W, the peripheral region R1 is partitioned from the other region R2 by the partition member 3, so that the inflow of scum Sc from the inlet 3a into the peripheral region R1 is promoted, and the scum Sc floating on the water surface WL is can efficiently flow into the peripheral region R1. Furthermore, since the peripheral region R1 is partitioned from the other region R2 by the partition member 3, the flow of water from the inlet 3a toward the suction port 5a in the peripheral region R1 is not obstructed, and the water flows into the peripheral region R1. The scum Sc flows within the peripheral region R1 and is smoothly sucked in from the suction port 5a.

Furthermore, as shown in FIGS. 1 and 2, in the channel S, the sucked scum Sc moves toward the scum pit 92 by the flow of water discharged from the discharge port 7a, and the scum Sc is moved toward the scum pit 92 in the channel forming member 5. It is blown out from the downstream end 52 in the discharge direction. As described above, the scum Sc blown out from the downstream end 52 of the flow path forming member 5 gathers near the blocking wall 93, and by opening the gate 931, the scum Sc blown out near the blocking wall 93 is removed. Sc is collected in the scum pit 92 along with the waste water. Here, the flow of water once generated in the channel S by discharging water from the discharge port 7a is difficult to attenuate because the channel S is surrounded by the channel forming member 5, and the scum Sc is spread over a long distance. Can be transported. With these, the number of the discharge ports 7a, the water supply pipes 70 , etc. that supply 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.

In addition, when the flow path forming member 5 is long, the discharge member 7 may be provided also in the middle part in the extending direction of the flow path forming member 5, as shown by the dashed line in FIG. Furthermore, when the length in the width direction of the water flow part 91 is long, a plurality of flow path forming members 5 and partition members 3 are arranged side by side in the width direction of the flow water flow part 91, and the flow path S of each flow path forming member 5 is Although a discharge member 7 for discharging water may be provided, the transfer device 1 may be configured to be movable in the width direction, as shown by the double-headed arrow in FIG.

In addition, as shown by the two-dot chain line in FIG. It may also be a mode in which water is disposed in a tilted posture) and the water is discharged into the flow path S from the discharge port 7a along the tilted posture of the flow path forming member 5. If this aspect is adopted, by discharging water from the discharge port 7a, the flow of water generated in the channel S becomes less likely to be attenuated, and the scum Sc can be transported over a longer distance. In addition, since a relatively strong water flow occurs in the part of the flow path S near the discharge port 7a, even if the position of the inlet port 3a is somewhat deeper from the water surface WL, the scum Sc floating on the water surface WL Problems such as difficulty in flowing in from the inflow port 3a are unlikely to occur.

Next, modifications of the transfer device shown in FIGS. 1 to 3 will be explained using FIGS. 4 to 10. In the modified examples described below, differences from the embodiment shown in FIGS. 1 to 3 will be mainly explained, and components having the same names as those in the embodiment shown in FIGS. , will be explained using the reference numerals used up to now, and redundant explanations may be omitted. 4 to 10 show states corresponding to FIG. 3, and in order to simplify the drawings, only the discharge port 7a of the discharge 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 modification. In this modification, the upper end portion 51 of the flow path forming member 5 is lower than the inlet 3a of the partition member 3, that is, the upper end portion 51 of the flow path forming member 5 is lower than the inlet 3a of the partition member 3. The flow path forming member 5 and the partition member 3 are arranged so as to be deeper from the water surface WL. Thereby, the radial interval Di between the partition member 3 and the flow path forming member 5 becomes narrower as it goes toward the suction port 5a, and the flow rate of water flowing within the peripheral region R1 becomes faster as it goes toward the suction port 5a. As a result, the scum Sc can be sucked in more reliably from the suction port 5a.

Further, as shown by the dashed line, the opening length L3 in the width direction of the inlet 3a, which is formed by using a pipe material with a small diameter as the flow path forming member 5 and cutting out the upper part thereof, is equal to the width of the inlet 5a. It is good also as an aspect where it is shorter than opening length L2 of direction. By doing so, the flow rate of water flowing into the inlet 3a becomes faster, and the scum Sc can flow more smoothly from the inlet 3a. Note that the partition member 3 indicated by a dashed line in FIG. The radial distance Di is approximately the same at any location. However, similarly to the partition member 3 shown by the solid line, the position of the flow path forming member 5 may be lowered and the interval Di may become narrower toward the suction port 5a.

FIG. 4(b) is a diagram showing a transfer device of a second 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 3a 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 becomes wider toward the suction port 5a. In this second modification, a wide peripheral region R1 can be ensured.

In addition, as shown 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 made to coincide with the radial center of the flow path forming member 5. The radial distance Di between the flow path forming member 5 and the flow path forming member 5 may be the same at any location. Although the channel forming member 5 may be arranged so that its upper end portion 51 is located above the water surface WL, the width at the water surface WL is Since the flow of water in this direction is obstructed, it is preferable to arrange the channel forming member 5 at a position where the upper end portion 51 is submerged in water. Further, it is preferable to set the depth of the upper end portion 51 of the flow path forming member 5 from the water surface WL to 20 mm or more, since this makes it difficult for scum Sc to rest on the upper end portion 51.

FIG. 5(a) is a diagram showing a third modified example of a transfer device. The transfer device 1 of this third modification differs from the transfer device 1 shown in FIG. 3 in that it includes a partition member 3 and a flow path forming member 5, both of which are flat. Specifically, the partition member 3 is formed by cutting out the upper end portion of a pipe having a height dimension of about 1/2 of the width dimension W1. Further, the flow path forming member 5 is formed by cutting out the lower end portion of a pipe having a height dimension of about 1/2 of the width dimension 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. In this way, by employing the flat partition member 3, it becomes easy to make the inlet 3a wider in the width direction. By widening the inlet 3a in the width direction, the scum Sc floating in a wider range of the water surface WL can be made to flow into the peripheral region R1. Furthermore, by employing the partition member 3 and the flow path forming member 5, both of which have a flat shape, it becomes difficult to obstruct the flow of the waste water W in the water flow section 91 (see FIG. 1), and the resistance to the flow of the waste water W is reduced. It also becomes possible.

Note that, as shown by the dashed line, 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 3a of the partition member 3. Further, instead of the flat partition member 3, the partition member 3 shown in FIG. 3 described above may be used, as shown by the two-dot chain line.

FIG. 5(b) is a diagram showing a transfer device of a fourth modification. In the transfer device 1 of this modification example, in the transfer device 1 of the third modification example shown in FIG. , a flow path forming member 5 and a partition member 3 are arranged. Thereby, the upper portion S1 of the flow path S is located above the inlet 3a. Note that instead of the flat channel forming member 5, the channel forming member 5 described above and shown in FIG. 3 may be used, as shown by the dashed line.

FIG. 6(a) is a diagram showing a transfer device of a fifth modification. The transfer device 1 of this modification 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 that connects the lower end portions of the pair of walls 32 in the horizontal direction. It has an open U-shaped cross section. Here, as in the embodiment shown in FIG. 3 and the modified examples shown in FIGS. 4 and 5, when the inner peripheral surface of the partition member 3 is arc-shaped, the partition member 3 and the flow path forming member 5 When moving one of the partition member 3 and the flow path forming member 5 in the vertical direction, depending on the size relationship of The member 3 and the flow path forming member 5 may interfere with each other. According to this modification, since the vertically erected wall portion 32 is located on the side of the flow path forming member 5, as shown by the double-headed arrow in the figure, one of the partition members 3 and the flow path forming member 5 is 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. Moreover, the production of the partition member 3 is also facilitated.

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, but as shown by the dashed line, The upper end portion 51 of the flow path forming member 5 may be set at a lower position than the inlet 3a of the partition member 3. Note that, as shown 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 by forming the upper end portion 321 of the wall portion 32 and the bottom portion 33. An arcuate corner 34 may be provided at the connecting portion.

FIG. 6(b) is a diagram showing a transfer device of a sixth modification. The transfer device 1 of this modification example is the transfer device 1 of the fifth modification example shown in FIG. , a flow path forming member 5 and a partition member 3 are arranged. In addition, as shown by the dashed line, the bottom part 33 of the partition member 3 may be formed into a circular arc shape that is convex downward.

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 the transfer device 1 shown in FIG. 3. As shown in FIG. 7(a), the partition member 3 of this modification has a second curved portion 35 at the upper end portion that is curved so as to expand outward in the width direction. Thereby, the inlet 3a of the partition member 3 widens, and the scum Sc floating in a wider range of the water surface WL can be caused to flow into the peripheral region R1 from the inlet 3a. Further, as shown by the dashed line, 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.

FIG. 7(b) is a diagram showing a transfer device of an eighth modification. In the transfer device 1 of this modification example, in the transfer device 1 of the seventh modification example shown in FIG. , a partition member 3 and a flow path forming member 5 are arranged. Furthermore, in this modification, the narrowest portion of the radial distance Di between the partition member 3 and the flow path forming member 5 is set to be approximately the same as the opening length L2 in the width direction of the suction port 5a. In addition, as shown by the dashed line, the partition member 3 with a small diameter is adopted, and the radial distance Di between the second curved portion 35 and the flow path forming member 5 is set to be smaller than the opening length L2 in the width direction of the suction port 5a. The interval Di may also be shortened to increase the flow rate of water passing through this interval Di.

FIG. 8 is a diagram showing a transfer device according to a ninth modification. In this modification, the depth Dp1 from the water surface WL, 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 partition member structures 30 in the shape of a 1/2 arc, as shown by a square surrounded by two-dot chain lines. As shown in b), the partition member 3 is constructed 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. These pair of partition member structures 30 can rotate around the radial center O to change the size of the overlapping portion β.

If the overlapping portion β is reduced from the state of the partition member 3 shown in FIG. 8(a) to the state shown in FIG. 8(b), the depth Dp1 of the inlet 3a from the water surface WL becomes shallower, and the inlet 3a The aperture length L3 becomes narrower. Although not shown, on the other hand, if the overlapping portion β is increased, the depth Dp1 of the inlet 3a from the water surface WL becomes deeper, and the opening length L3 of the inlet 3a becomes wider. In this way, 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 addition, in FIG. 8, when the height of the water surface WL is constant, the depth Dp1 of the inlet 3a from the water surface WL is adjusted as an example. A mode may also be adopted in which the depth Dp1 of the inlet 3a from the water surface WL is adjusted to be constant.

Further, as shown in FIGS. 8(a) and 8(b), the flow path forming member 5 includes a flow path forming member main body 50 having an arcuate cross section with approximately the lower 1/3 of the cylindrical body cut out; A pair of slide pieces 53 are provided at both ends of the cutout portion of the flow path forming member main body 50, respectively. Each of the pair of slide pieces 53 has a 1/5 arc shape, and a lower end portion protrudes downward from the flow path forming member main body 50, and a suction port 5a is formed between these lower end portions. Further, each of the pair of slide pieces 53 slides along the inner peripheral surface 50a of the flow path 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. I can do it.

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 from the state of the flow path forming member 5 to the flow path forming member 5 as shown by the dotted arc-shaped arrow in FIG. 8(b). When it is slid inside (above) the forming member main body 50, 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 The opening length L2 of the mouth 5a becomes narrower.

In addition, the structure of the partition member 3 in the modification shown in FIG. 8 may be applied to the flow path forming member 5, and the structure of the flow path forming member 5 may be applied to the partition member 3. In addition, by dividing the pair of partition member structures 30 and the slide pieces 53 into a plurality of parts in the discharge direction and adjusting each, for example, the depth Dp1 of the inlet 3a from the water surface WL, the opening of the suction port 5a, etc. The length L2 etc. can also be made different between the upstream side in the discharge direction and the downstream side in the discharge 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 of the partition member 3 in the width direction (the left end in the figure), and is supported by the partition member 3 in a so-called cantilevered state. It is. As shown by a square surrounded by a two-dot chain line, conceptually, each of the flow path forming member 5 and the partition member 3 has a common part 4, which is shown by a dotted line and has a part in common with each other. This makes it easier to ensure the radial distance Di between the partition member 3 and the flow path forming member 5. Furthermore, in this modification, the inner circumferential surface 4a from the partition member 3 to the flow path forming member 5 is constituted by a continuous curved surface. 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 circumferential surface 4a, and the scum Sc can be smoothly sucked from the suction port 5a of the flow path forming member 5. I can do it. Note that the height (depth from the water surface WL) of the upper end portion 51 of the flow path forming member 5 is the height (depth from the water surface WL) of the other end (the right end in the figure) of the partition member 3 in the width direction. However, as shown in FIG. 9, if the height of the upper end portion 51 of the flow path forming member 5 and the height of the other end of the partition member 3 in the width direction are made the same, This 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 with its suction port 5a facing upward. In this modification, when water is discharged from the discharge port 7a into the flow path S of the flow path 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 in the direction of being sucked into the path S occurs. As a result, as the flow of scum Sc is conceptually shown in FIG. 10, the scum Sc floating on the water surface WL of the water flow section 91 gathers toward the suction port 5a and is sucked into the flow path S from the suction port 5a. It will be done. The scum Sc sucked into the channel S is moved in the transport direction by the flow of water discharged from the discharge port 7a.

Note that the flow path forming member 5 is rotated with the radial center O as the rotation center, as shown by the arcuate double-headed arrow, and the direction in which the suction port 5a opens, as shown by the straight arrow, is set at an angle α. It may also be a mode that can be changed within a range. Moreover, as the flow path forming member 5, as shown 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 modification example shown in FIG. 4 etc. which has the partition member 3, you may adopt the aspect which rotates the partition member 3 about the center of a radial direction as a rotation center.

Next, a second embodiment of the transfer device of the present invention, which uses different equipment, will be described. Also in the second embodiment described below, components with the same names as those in the embodiment shown in FIGS. May be omitted.

FIG. 11 is a schematic configuration diagram of a lie-down structure provided with a transfer device according to a second embodiment of the present invention. A hidden structure is a structure in which when a sewage pipe crosses a river, railway, etc., a hidden pipe is installed at a location lower than the river, etc., and the sewage flows through the water level difference between the upstream pipe and the downstream pipe. say.

In Fig. 11, the overhanging structure 8 allows the sewage DR to flow from the left side to the right side of the river Ri, and as shown by the white arrow in the figure, the direction from the left to the right is the direction in which the sewage DR flows. . As shown in FIG. 11, the overhang structure 8 includes an upstream conduit 81, an upstream manhole 82, an overhang pipe 83, a downstream manhole 84, and a downstream A side pipe 85 is provided. The upstream pipe line 81 is connected to an upstream manhole 82, and the overhang pipe 83 is connected to the upstream manhole 82 and the downstream manhole 84 at a position lower than the river Ri. The downstream pipe line 85 is connected to the downstream manhole 84 at a position lower than the position where the upstream pipe line 81 is connected to the upstream manhole 82 . Note that sediment pools 821 and 841 are formed at the bottom of the upstream manhole 82 and the downstream manhole 84, respectively.

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

Here, the upstream pipe line 81 is provided with a transfer device 1 having the same configuration as the transfer device 1 shown in FIGS. 1 to 3. In this transfer device 1, the downstream end 52 of the flow path forming member 5 is located near the area where the upstream pipe line 81 connects to the upstream manhole 82. Similar to the transfer device 1 shown in FIGS. 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 water is transferred toward the side manhole 82 and blown out from the downstream end 52 of the flow path forming member 5, thereby being collected on the water surface WL of the sewage DR in the upstream 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 some of it is drawn into the flow of the sewage DR and flows into the overhang pipe. 83. Note that sand and the like that have settled in the earth and sand pool 821 also flow into the overhang pipe 83 due to the flow of the sewage DR. The overflow 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 sectional view taken along the line CC of the overhang pipe shown in FIG. 11. In addition, in FIG. 12, the regions on both sides in the width direction and the middle region in the vertical direction of the overhang pipe 83 are omitted.

As shown in FIG. 12, the inside of the overhang 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 overhang pipe 83. In the transfer device 1, the depth Dp1 from the water surface WL, that is, the ceiling surface 831, at the inlet 3a of the partition member 3 and the upper end portion 51 of the flow path forming member 5 is set to be 20 mm or more. If the depth Dp1 from the water surface WL is less than 20 mm, the space between the ceiling surface 831 of the overhang pipe 83 and the inlet 3a of the partition member 3, or between the ceiling surface 831 of the overhang pipe 83 and the flow path forming member 5 The scum Sc tends to get caught between the upper end portion 51 of the scum, which is undesirable.

When water is discharged from the discharge port 7a of the discharge member 7 into the flow path S of the flow path forming member 5, water flows in the direction of being sucked into the flow path S from the suction port 5a, and from the inflow port 3a to the surrounding area. A flow of water flows into the region R1, and a flow of water toward the suction port 5a occurs within the peripheral region R1. As a result, a flow occurs on the water surface WL (near the ceiling surface 831) in the direction of gathering at the inlet 3a of the partition member 3, and the scum Sc floating around the ceiling surface 831 gathers and flows from the inlet 3a to the surrounding area. It flows into region R1. The scum Sc that has flowed into the peripheral region R1 is sucked into the flow path S from the suction port 5a, and the sucked scum Sc is transferred to the downstream manhole 84. Thereby, the problem that the scum Sc adheres to the ceiling surface 831 of the overflow pipe 83 and remains inside the overflow pipe 83 can be solved.

On the bottom side of the overflow pipe 83, a sediment transfer device 2 for transferring sediment is provided on the bottom surface 832. In addition, the bottom of the overflow pipe 83 has been renovated, and a pair of sloped surfaces 833 are provided that are sloped downward toward the sediment transfer device 2 by the renovated concrete portion shown by cross hatching. The sediment transfer device 2 includes a trough 21, a bottom flow path forming member 25, and a bottom discharge member 27. The trough 21 forms a groove M extending in the direction from the upstream manhole 82 to the downstream manhole 84 (see FIG. 11) on the bottom side of the overhang pipe 83. The upwardly opened portion of the trough 21 becomes the opening 21a of the groove M, and the lower end of the inclined surface 833 is connected to the opening 21a of the groove M. The bottom flow path forming member 25 extends in the same direction as the trough 21, and is formed to have substantially the same overall length as the trough 21. The bottom flow path forming member 25 forms the bottom flow path S2, and partitions the bottom flow path S2 from the groove M. Further, the bottom channel forming member 25 has an in-groove suction port 25a located within the groove M and connected to the bottom channel S2. The bottom discharge member 27 includes a bottom discharge port 27a, from which water is discharged into the bottom flow path S2.

Sediment such as sand contained in the sewage DR that has flowed into the overhang pipe 83 settles as the sewage DR flows downstream, and flows down toward the trough 21 along the slope 833. The sediment that has flowed down from the slope 833 enters the groove M through the opening 21a of the trough 21. In addition, sand accumulated in the earth and sand pool 821 of the upstream manhole 82 shown in FIG. 11 may also enter the groove M.

When water is discharged from the bottom side outlet 27a into the bottom side flow path S2, the sediments that are drawn into the flow of the discharged water and deposited on the bottom of the groove M are moved in the direction of the curved arrow shown in FIG. As such, it is sucked into the bottom channel S2 from the in-groove suction port 25a. Further, in the bottom channel S2 of the bottom channel 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 discharge port 27a. move towards. As a result, sediment such as sand can be transferred to the sediment pool 841 of the downstream manhole 84 without remaining in the overhang pipe 83.

The present invention is not limited to the embodiments described above, and various changes can be made within the scope of the claims.

Note that even if the constituent features are included only in the descriptions of each of the embodiments and modifications described above, the constituent features may be applied to other embodiments and other modifications.

The transfer device described so far also includes a flow path forming member that forms a flow path and is provided with a suction port that is connected to the flow path and submerged in water;
and a discharge port for discharging fluid into the flow path,
The suction port functions as an opening that sucks objects to be transported floating on the water surface into the flow path by discharging fluid into the flow path,
The flow path functions as a path through which the object to be transported sucked into the flow path moves toward the downstream side in the fluid discharge direction by discharging the fluid into the flow path. It is characterized by

Furthermore, in this transfer device, the peripheral area around the flow path forming member and other areas in the water are partitioned such that the peripheral area is on the inside, and the partition is provided with an inlet connected to the peripheral area. Equipped with parts,
The inflow port functions as an opening that allows the object to be transported floating on the water surface 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 flow path the object to be transferred that has flowed into the peripheral area by discharging fluid into the flow path.

In addition, the transfer device described so far forms a flow path, is provided with a suction port connected to the flow path and submerged in water, and is a pipe-shaped flow extending approximately parallel to the water surface. a path forming member;
The flow path includes a discharge port that discharges fluid toward 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 objects floating on the water surface into the flow path by discharging fluid into the flow path. It is a thing,
The flow path functions as a path through which the object to be transported sucked into the flow path moves toward the downstream side in the fluid discharge direction by discharging the fluid into the flow path. It is characterized by

Furthermore, 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 on the inside, and an inlet connected to the peripheral area is provided, and an inlet is provided that is connected to the peripheral area. a pipe-shaped partition member extending substantially parallel to the
The inflow port is configured to face upward and functions as an opening for causing the object to be transported floating on the water surface 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 object to be transported that has flowed into the peripheral area into the flow path by discharging fluid into the flow path. There may be.

Furthermore, this transfer device may be movable in a direction perpendicular to the discharge direction of the fluid in a horizontal plane.

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

In addition, the transfer device described so far forms a flow path, is provided with a suction port connected to the flow path and submerged in water, and is a pipe-shaped flow extending approximately parallel to the water surface. A transfer device comprising a passage forming member and a discharge port discharging fluid in the axial direction of the passage forming member within the passage,
The suction port is configured to face upward, extends in the extending direction of the flow path forming member, and removes objects suspended on the water surface by discharging fluid into the flow path. It functions as an opening that sucks into the tract.
The flow path functions as a path through which the object to be transported sucked into the flow path moves toward the downstream side in the fluid discharge direction by discharging the fluid into the flow path. It is characterized by

Here, the flow path forming member may be such that the suction port opens toward the water surface from a position lower than the water surface and is located at a depth of 200 mm or less from the water surface. Note that the flow path forming member may have the suction port opened toward a direction other than the water surface. Moreover, when the height of the water surface changes, the flow path forming member may be able to move in the vertical direction and change the height of the suction port. Furthermore, the flow path may be such that a portion closer to the suction port becomes narrower as it approaches the suction port. Further, the flow path forming member may have a shape in which a part of a cylindrical body is cut out. Furthermore, the discharge port may be a perfect circle or a flat shape, and a plurality of discharge ports may be provided at intervals in the discharge direction. Further, the fluid discharged from the discharge port may be a liquid, a gas, or a gas-liquid mixture. Further, the discharge port may discharge fluid at a rate 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, so that the object to be transferred, which is drawn into the flow of the discharged fluid and floats on the water surface, is transferred from the suction port. is sucked into the flow path. Furthermore, within 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. Since the flow path is surrounded by the flow path forming member, the flow of water once generated in the flow path is much stronger than the air flow or blowing flow in the transfer device described in Patent Document 1. It is difficult to attenuate, and objects to be transported can be transported over long distances. Furthermore, a flow is generated on the water surface in the direction of being sucked into the suction port, and the transferred material 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, a region from which the transferred object has been removed may be formed on the water surface in a state extending in the transfer direction. Hereinafter, the area on the water surface from which the object to be transported has been removed may be referred to as the removed area of the water surface. If the transfer device is installed in a water conduit or the like, where the received wastewater flows in the transfer direction, the flow of the received wastewater also creates a flow in the transfer direction on the water surface, and this flow causes scum (transferred material) to flow. ) also flows in the transport direction through the removal area of the water surface. Further, when the scum flowing through the removal area of the water surface comes into contact with the scum floating in a lump on the water surface, a part of it 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 in the transport direction. As a result, the scum floating on the water surface can be efficiently transported while being broken up little by little.

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

In addition, the transfer device described so far forms a flow path, is provided with a suction port connected to the flow path and submerged in water, and is a pipe-shaped flow extending approximately parallel to the water surface. a path forming member;
a discharge port that discharges fluid into the flow path in an axial direction of the flow path forming member;
A peripheral area around the flow path forming member and other areas in the water are partitioned such that the peripheral area is on the inside, and an inlet connected to the peripheral area is provided and extends approximately parallel to the water surface. Equipped with a pipe-shaped partition member that existed previously,
The inflow port is configured to face upward and functions as an opening for causing objects to be transported floating on the water surface 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 transferred object that has flowed into the peripheral area into the flow path by discharging fluid into the flow path. It is functional;
The flow path functions as a path through which the object to be transported sucked into the flow path moves toward the downstream side in the fluid discharge direction by discharging the fluid into the flow path. It is characterized by

Here, the inlet of the partition member may open toward the water surface from a position lower than the water surface, and may be located 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 be able to move in the vertical direction and change the height of the suction port. Furthermore, the peripheral region may be such that a portion closer to the inlet becomes narrower as it approaches the inlet. Further, the partition member may have a curved portion extending toward the center in the width direction at the upper end portion. Furthermore, the flow path forming member has the suction port opening in the peripheral area and an upper end portion located at approximately the same height as the inflow port, or located below the inflow port. It may be any one located above the inlet. Further, the partition member may have a shape in which the upper end portion of a cylindrical body is cut out. Furthermore, the partition member and the flow path forming member may have an inner peripheral surface formed of a continuous curved surface from the partition member to the flow path forming member. Further, the flow path forming member is spaced apart from one end side and the other end side in the width direction of the partition member, and has a part in common with a part of the partition member. It may also be connected to the one end side.

If the embodiment including the partition member is adopted, the peripheral area is partitioned from other areas by the partition member underwater, so that the object to be transferred does not flow into the peripheral area from the inlet. This allows the objects to be transported suspended on the water surface to efficiently flow into the surrounding area. Furthermore, since the peripheral area is partitioned from other areas by the partition member, the flow of water from the inlet to the suction port is not obstructed, and the transferred object that has flowed into the peripheral area flows within the peripheral area and is smoothly sucked in from the suction port.

In addition, if the transfer device is installed in a water conduit or the like where the received water flows in the transfer direction, the flow of the received water causes the scum (objects to be transferred) to flow in the removal area of the water surface in the transfer direction as well. . Further, when the scum flowing through the removal area of the water surface comes into contact with the scum that has accumulated on the water surface, a part of it collapses, and the collapsed part is removed after flowing into the surrounding area from the inlet. , it is sucked in from the suction port and moves within the flow path, or it flows through the removal area of the water surface and moves in the transport direction. As a result, the scum accumulated on the water surface can be efficiently transferred while being broken up little by little.

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

In this way, by employing a flat flow path forming member, it becomes easy to make the suction port wider in the width direction. If the suction port is widened in the width direction, the object to be transported floating in a wider range of the water surface can be sucked into the flow path. Further, by making the flow path forming member flat, the entire device can be made thin, and can be suitably used in shallow waterways and the like. Furthermore, by forming the flow path forming member into a flat shape, it becomes difficult to obstruct the flow of sewage, etc. in the water conduit where the transfer device is provided, and it is also possible to reduce resistance to the flow of sewage, etc. .

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

In this way, by employing a flat partition member, it becomes easy to widen the inlet in the width direction. By widening the inflow port in the width direction, the object to be transported floating in a wider range of the water surface can be caused to flow into the peripheral area. Furthermore, by making the partition member flat, the entire device can be made thin, and can be suitably used for shallow waterways and the like. Furthermore, by forming the partition member into a flat shape, it becomes difficult to obstruct the flow of sewage, etc. in a water conduit or the like in which the transfer device is provided, and it is also possible to reduce resistance to the flow of sewage, etc.
The transfer device described so far also includes a flow path forming member that forms a flow path and is provided with a suction port that is connected to the flow path and submerged in water;
a discharge port that discharges fluid into the flow path;
an inlet extending substantially parallel to the water surface and submerged in water, and comprising a partition member surrounding the flow path forming member;
The inflow port functions as an opening that allows objects to be transported floating on the water surface to flow into a region between the partition member and the flow path forming member by discharging fluid into the flow path. ,
The suction port functions as an opening that sucks into the flow path the object to be transferred that has flowed into the area between the partition member and the flow path forming member by discharging fluid into the flow path. It is a thing,
The flow path functions as a path through which the object to be transported sucked into the flow path moves toward the downstream side in the fluid discharge direction by discharging fluid into the flow path. ,
The space between the partition member and the flow path forming member is characterized in that it becomes narrower toward the suction port.

1 Transfer device 3 Partition member 3a Inflow port 5 Channel forming member 5a Suction port 51 Upper end portion 7 Discharge member 7a Discharge port 9 Water channel S Channel Sc Scum R1 Surrounding area W Sewage

Claims (1)

a flow path forming member that forms a flow path and has an arc-shaped cross section and is provided with a suction port connected to the flow path and submerged in water;
a discharge port that discharges fluid into the flow path;
an inlet extending substantially parallel to the water surface and submerged in the water is provided above , and a partition member having an arcuate cross section surrounding the flow path forming member;
The flow path forming member extends substantially parallel to the partition member,
The inflow port functions as an opening that allows objects to be transported floating on the water surface to flow into a region between the partition member and the flow path forming member by discharging fluid into the flow path. ,
The suction port functions as an opening that sucks into the flow path the object to be transferred that has flowed into the area between the partition member and the flow path forming member by discharging fluid into the flow path. It is a thing,
The flow path functions as a path through which the object to be transported sucked into the flow path moves toward the downstream side in the fluid discharge direction by discharging fluid into the flow path. ,
A transfer device characterized in that a radial distance between the partition member and the flow path forming member becomes narrower toward the suction port.