JP3749405B2 - Unit type pump gate - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a unit type pump gate having a pump for opening and closing a water channel and draining water on one side of a closed water channel.
[0002]
[Prior art]
Conventionally, for example, in a place where a tributary flows into a river (main stream), a gate for opening and closing the tributary is installed on the tributary side. When the river increases due to heavy rain or the like, the river is prevented from flowing back to the tributary by closing the gate. On the other hand, the water that flows from the upstream of the tributary when the gate is closed is forcibly drained to the river side by the pump.
[0003]
In order to save space, this type of gate includes a pump gate having a structure in which the drain pump is externally attached to the gate itself, and a pump gate having a built-in gate structure in which a pump is installed inside the door body. Yes, it has been used.
[0004]
By the way, the shape and size of this type of gate and the required number of pumps vary greatly depending on the shape of the water channel such as a river to be installed and the amount of flowing water. However, the conventional pump gate has a structure that incorporates the required number of pumps into one gate manufactured according to the shape of the water channel such as the river to be installed, so it is designed with a different shape and structure for each water channel to be installed. Therefore, the design / manufacturing and the factory performance test of the pump were complicated.
[0005]
Also, conventional gates and pump gates always have a skin plate that shuts off the water channel on the water stop side, but if the area is large, the overall production cost is high.
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and an object of the present invention is to provide a unit-type pump gate that can easily design and manufacture a pump gate suitable for a water channel to be installed.
[0007]
Another object of the present invention is to provide a unit type pump gate which can omit a skin plate as a gate and can reduce the cost.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a plurality of unit type pumps configured by assembling a pump, a pump suction port, and a pump discharge port as a unit constituting a part of a pump gate. A gate that opens and closes the water channel by connecting in parallel is configured, and the pump is operated in a state in which the water channel is closed by the gate, so that water on one side is drained .
The present invention is characterized in that frame members are attached to both sides of the connected gates, and lifting members are attached to these frame members.
Further, according to the present invention, the unit-type pump is provided with a flow passage casing that forms a pump flow passage inside a box-shaped frame, and an impeller housing portion is provided at a lower portion of the flow passage casing. It is a vortex pump constituted by storing an impeller in a car storage part and installing a drive means outside the impeller storage part.
Further, in the present invention, the unit type pump is configured such that a vertical shaft pump is supported and fixed in a box-shaped frame body, and a plate member constituting a part of the frame body is attached to a downstream surface of the frame body. It is characterized by being.
In the present invention, the unit-type pump is configured such that a horizontal shaft pump is supported and fixed in a frame, and a plate member constituting a part of the frame is attached to an upstream surface of the frame. It is characterized by being.
Further, the present invention provides an opening in parallel with a plurality of unit type pumps configured by assembling a pump, a pump suction port, and a pump discharge port as a unit constituting a part of the pump gate. A gate frame is provided, and a gate that opens and closes the water channel is configured by attaching the unit pumps in parallel so as to close the openings provided in the gate frame.
Further, the present invention is characterized in that the plurality of unit type pumps are installed on the gate frame in parallel but separated from each other.
Further, the present invention is characterized in that the front surface of the unit type pump is fixed to the gate frame in a direction parallel to the flow of water.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First Embodiment]
FIG. 1 is a perspective view showing a unit type pump gate 100 according to the first embodiment of the present invention, and FIG. 2 is a perspective view of the unit type pump gate 100 as viewed from the opposite side. As shown in both figures, the unit type pump gate 100 is configured by connecting and fixing two unit type pumps 10 and 10 in parallel. Frame members 40a and 40a are attached to both sides of the unit-type pumps 10 and 10 which are connected and fixed, a frame member 40b is attached to the upper part, and lifting members 41 and 41 are attached to upper end surfaces thereof. Each component will be described below.
[0010]
FIG. 3 shows one unit type pump 10 as an example, FIG. 3 (a) is a schematic side sectional view, and FIG. 3 (b) is an AA schematic sectional view of FIG. 3 (a). It is. FIG. 4 is a perspective view of the unit type pump 10 in the state shown in FIG. 1 with the upstream surface of the frame 35 cut away. As shown in FIGS. 3, 4, 1, and 2, the unit-type pump 10 has a flow passage casing 15 that forms a pump flow passage installed inside a box-shaped frame 35 that is open on the downstream side. An impeller storage portion 17 is provided at the lower portion of the flow passage casing 15, an impeller 19 is stored in the impeller storage portion 17, and orthogonal to be connected to the impeller 19 outside the impeller storage portion 17. A shaft reducer 21 is attached, and a submersible motor (driving means) 23 is attached on the orthogonal shaft reducer 21 to constitute a vortex pump.
[0011]
A circular suction port 14 is provided in a portion of the frame 35 that faces the impeller 19, and a backflow prevention valve (flap valve) 27 is attached to the discharge port 25 at the end of the flow channel casing 15, whereby the flow channel The lower part of the casing 15 is configured as a suction channel 29 and the upper part is configured as a discharge channel 31.
[0012]
This vortex pump has a structure in which water does not flow between the impellers 19 and a centrifugal force is applied to the water to form a vortex to lift the water, so even a somewhat large dust can be easily drained. This is preferable because it is not necessary to install a large dust removal facility on the upstream side of the unit type pump gate 100. Moreover, since the submersible motor 23 can be installed outside the unit type pump 10, the thickness of the entire unit type pump 10 can be reduced, which is preferable.
[0013]
As shown in FIGS. 1 and 2, two unit type pumps 10 of the same standard are connected and fixed in parallel by various fixing means such as bolts, frame members 40a and 40a are provided on both sides thereof, and frame members are provided on the upper side thereof. If 40b is attached, unit type pump gate 100 concerning this embodiment will be completed. The frame member 40b may not be attached.
[0014]
Then, as shown in FIG. 1, the unit type pump gate 100 is lowered into the water channel 1 by the vertical drive means (not shown) provided above the lifting members 41, 41 to close the water channel 1, and the water channel 1 flows backward from the downstream side. Block incoming water. At this time, the backflow prevention valve 27 remains closed. On the other hand, in order to drain the water flowing from the upstream side to the downstream side, when the underwater motor 23 is driven and the impeller 19 is rotated, the water on the upstream side passes through the suction channel 29 and the discharge channel 31 from the suction port 14. Then, the water is discharged from the discharge port 25 to the downstream side.
[0015]
In the case of this embodiment, the gate is configured by connecting and fixing two unit type pumps 10, but the unit type pump 10 is configured according to the width of the water channel and the amount of flowing water. Alternatively, the gate may be configured by connecting and fixing three or more unit type pumps 10 in parallel. The gate may be configured by connecting and fixing a plurality of unit type pumps 10 having different amounts of drainage per unit. When the width of the water channel is wide but the amount of drainage is small, for example, two unit type pumps 10 are installed in parallel but separated from each other by a predetermined distance, and the gap portion between them is covered with a separately prepared plate or the like In this way, the gate may be configured. That is, according to the present invention, a gate can be easily configured by connecting a required number of unit-type pumps 10 of the same standard in parallel according to the width of the gate which differs depending on the water channel and the required amount of drainage. The unit type pump 10 to be manufactured at this time can be designed and manufactured easily because it is sufficient to produce only one type or a small amount of a different amount of drainage and drainage heads of the same shape and structure. Further, since the factory performance test of the pump can be performed for each unit, the method becomes easy.
[0016]
[Second Embodiment]
FIG. 5 is a view showing a unit type pump gate 100-2 according to the second embodiment of the present invention, FIG. 5 (a) is a plan view, and FIG. 5 (b) is a front view (viewed from the upstream side). FIG. 5C is a schematic cross-sectional view taken along the line BB of FIG. The unit type pump gate 100-2 shown in the figure is also configured by connecting and fixing two unit type pumps 10-2 and 10-2 in parallel and attaching frame members 40-2 and 40-2 on both sides thereof. Has been. Lifting members 41-2 and 41-2 are attached to the upper end surfaces of the frame members 40-2 and 40-2.
[0017]
This embodiment is different from the first embodiment in the structure of the unit type pump 10-2. That is, this unit type pump 10-2 uses a vertical shaft pump 20-2 as a pump to be used, and supports and fixes the vertical shaft pump 20-2 in a box-shaped frame 35-2. A plate member 11-2 that constitutes a part of the frame 35-2 is attached to the downstream surface of 35-2. A backflow prevention valve (flap valve) 27-2 is attached to the discharge port of the vertical pump 20-2, and an opening 12-2 is provided at a position facing the backflow prevention valve 27-2 of the plate member 11-2. ing.
[0018]
Then, as shown in FIG. 5, the unit type pump gate 100-2 is lowered into the water channel 1 by the vertical driving means (not shown) provided above the lifting members 41-2 and 41-2, and the water channel 1 is closed. Blocks water that flows back from the downstream side. On the other hand, in order to drain the water flowing from the upstream side to the downstream side, when the vertical pump 20-2 is driven, the upstream water is sucked from the suction port 14-2 and opens the backflow prevention valve 27-2. It is drained downstream through 12-2.
[0019]
It is the same as in the first embodiment that the gate may be configured by connecting one unit pump or a plurality of unit type pumps 10-2 according to the width of the water channel 1 or the amount of water to be drained.
[0020]
[Third Embodiment]
FIG. 6 is a view showing a unit type pump gate 100-3 according to a third embodiment of the present invention, FIG. 6 (a) is a schematic side sectional view (CC schematic sectional view of FIG. 6 (b)), FIG. 6B is a rear view (viewed from the downstream side). The unit type pump gate 100-3 shown in the figure also has two unit type pumps 10-3 and 10-3 connected and fixed in parallel, and frame members 40-3a and 40-3a on both sides of the unit type pump gates 10-3 and 10-3. It is comprised by attaching 40-3b. Lifting members 41-3 and 41-3 are attached to the upper end surfaces of the frame members 40-3a and 40-3a.
[0021]
This embodiment is different from the first embodiment in the structure of the unit type pump 10-3. That is, the unit type pump 10-3 uses a horizontal shaft type pump 20-3 as a pump to be used, and supports and fixes the horizontal shaft type pump 20-3 in the frame body 35-3. 3, a plate member 11-3 constituting a part of the frame 35-3 is attached to the upstream surface. A check valve (flap valve) 27-3 is attached to the discharge port of the horizontal shaft type pump 20-3.
[0022]
Then, as shown in FIG. 6, the unit type pump gate 100-3 is lowered to close the water channel 1, and the water flowing backward from the downstream side in the water channel 1 is blocked. On the other hand, in order to drain the water flowing from the upstream side to the downstream side, when the horizontal shaft type pump 20-3 is driven, the upstream water is sucked from the suction port 14-3 and the check valve 27-3 is opened. Drained downstream.
[0023]
As in the first and second embodiments, the gate may be configured by connecting one or a plurality of unit type pumps 10-3 according to the width of the water channel or the amount of water to be drained.
[0024]
[Fourth Embodiment]
7, 8, and 9 are views showing a unit type pump gate 100-4 according to a fourth embodiment of the present invention. FIG. 7 is an exploded perspective view, FIG. 8 is a perspective view, and FIG. It is a figure (DD schematic sectional drawing of FIG. 8).
[0025]
This unit type pump gate 100-4 is configured as a pump gate that opens and closes the water channel by attaching two unit type pumps 10 and 10 in parallel so as to close the openings 51 and 51 provided in the gate frame 50. Yes.
[0026]
Here, the unit type pump 10 has the same structure as the unit type pump 10 shown in FIGS. The opening 51 provided in the gate frame 50 is formed in a size and shape that is covered by the frame 35 of the unit type pump 10.
[0027]
That is, this unit type pump gate 100-4 uses the unit type pump 10 itself in place of the skin plate, thereby omitting a skin plate separately installed as a gate and reducing costs. The use of the unit pump 10 itself instead of the skin plate is the same as in the first embodiment, but is different from the first embodiment in the following points.
[0028]
That is, in the first embodiment, the unit type pumps 10 are directly connected and fixed in parallel, but in this embodiment, the unit type pumps 10 are parallel to each other, but can be installed apart from each other, and the design freedom is achieved. The degree increases.
[0029]
Further, in the first embodiment, the side surfaces of the unit type pump 10 are directly connected and fixed. Therefore, when the bolts and nuts are fixed, for example, the direction of the bolts is perpendicular to the water flow. Therefore, a force is exerted on the bolt to shear it, so that it is necessary to use an expensive bolt having high strength. This is the same when the fixing method is welding. On the other hand, in the case of the fourth embodiment, since the front surface of the unit type pump 10 is fixed to the gate frame 50 with bolts and nuts, the direction of the bolts is parallel to the flow of water. Therefore, the bolt is not subjected to a force for shearing it, only a force for pulling the bolt is applied, and the connection strength is high, so that it is not necessary to use an expensive bolt having a high strength.
[0030]
[Fifth Embodiment]
FIG. 10 is a view showing a unit type pump gate 100-5 according to a fifth embodiment of the present invention, in which FIG. 10 (a) is a schematic plan view (however, the description of the portion covering the gate upper portion of the gate frame 55 is omitted). (B) is a schematic sectional view.
[0031]
This unit type pump gate 100-5 is also provided on the gate frame 55 in parallel with a little space between the two unit type pumps 10-2 and 10-2 having the same structure as that of the second embodiment (see FIG. 5). It is configured as a pump gate that opens and closes the water channel by attaching so as to close the openings 56 and 56.
[0032]
This unit type pump gate 100-5 also uses the unit type pump 10-2 itself (specifically, its plate member 11-2) instead of the skin plate, thereby omitting a skin plate separately installed as a gate, Cost reduction is planned. Compared to the second embodiment, the unit pumps 10-2 can also be installed apart from each other in parallel in the same manner as in the fourth embodiment, but the degree of freedom in design is increased. Connection strength with nuts can be increased.
[0033]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims.
[0034]
For example, it goes without saying that a pump having a structure other than the above embodiments may be used as the drainage pump to be used. In addition to the electric motor, the driving means for driving the pump may be any other driving means such as a hydraulic motor. Further, the frame member 40 is not necessarily required, and a unit type pump gate may be configured only by connecting the unit type pump. Moreover, in the said embodiment, although one pump was installed in one unit type pump, you may install two or more pumps in one unit type pump. A unit type pump gate may be configured by connecting and fixing a plurality of unit type pumps having different standards. Moreover, you may comprise an on-off valve and an on-off gate in the discharge port and suction port of a pump.
[0035]
【The invention's effect】
As described above in detail, according to the present invention, a gate can be configured by connecting a required number of unit-type pumps of a predetermined standard in parallel. Can be easily assembled.
[0036]
Further, the unit type pump to be manufactured only needs to be produced with one type or a small amount of standards having the same shape and structure, so that the unit type pump itself can be easily designed and manufactured.
[0037]
In addition, if a gate frame is provided and a gate that opens and closes the water channel is configured by installing a unit-type pump so as to close the opening provided in the gate frame, a skin plate as a gate is separately installed. Can be omitted and the cost can be reduced. Further, the unit type pump can be firmly fixed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a unit type pump gate 100 according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the unit type pump gate 100 shown in FIG. 1 as viewed from the opposite side.
3A and 3B are diagrams showing a unit type pump 10, in which FIG. 3A is a schematic side sectional view, and FIG. 3B is a schematic AA sectional view of FIG.
4 is a perspective view showing a state in which the upstream surface of the frame body 35 of the unit pump 10 shown in FIG. 1 is cut away. FIG.
5A and 5B are diagrams showing a unit type pump gate 100-2 according to a second embodiment of the present invention, in which FIG. 5A is a plan view, FIG. 5B is a front view, and FIG. It is BB schematic sectional drawing of FIG.5 (b).
FIG. 6 is a view showing a unit type pump gate 100-3 according to a third embodiment of the present invention, and FIG. 6 (a) is a schematic side sectional view (CC schematic sectional view of FIG. 6 (b)). FIG. 6B is a rear view.
FIG. 7 is an exploded perspective view showing a unit type pump gate 100-4 according to a fourth embodiment of the present invention.
FIG. 8 is a perspective view showing a unit type pump gate 100-4 according to a fourth embodiment of the present invention.
FIG. 9 is a schematic sectional side view (DD schematic sectional view of FIG. 8) showing a unit type pump gate 100-4 according to a fourth embodiment of the present invention.
FIGS. 10A and 10B are diagrams showing a unit type pump gate 100-5 according to a fifth embodiment of the present invention, in which FIG. 10A is a schematic plan view and FIG. 10B is a schematic cross-sectional view.
[Explanation of symbols]
1 Water Channel 100 Unit Type Pump Gate 10 Unit Type Pump 14 Suction Port 19 Impeller 25 Discharge Port 27 Backflow Prevention Valve (Flap Valve)
DESCRIPTION OF SYMBOLS 29 Suction flow path 31 Discharge flow path 35 Frame 100-2 Unit type pump gate 10-2 Unit type pump 12-2 Opening 14-2 Suction port 20-2 Vertical shaft pump 27-2 Backflow prevention valve 35-2 Frame 100-3 Unit Type Pump Gate 10-3 Unit Type Pump 14-3 Suction Port 20-3 Horizontal Axial Flow Pump 27-3 Backflow Prevention Valve 35-3 Frame 100-4 Unit Type Pump Gate 50 Gate Frame 51 Opening 100-5 Unit type pump gate 55 Gate frame 56 Opening

Claims (8)

A gate that opens and closes a water channel by connecting a plurality of unit-type pumps that are configured by assembling a pump, a pump suction port, and a pump discharge port as a unit that forms part of the pump gate. A unit type pump gate characterized in that the water is drained on one side by operating the pump with the water channel closed by the gate. The unit type pump gate according to claim 1, wherein frame members are attached to both sides of the connected gates, and lifting members are attached to the frame members. In the unit type pump, a flow passage casing that forms a pump flow passage is attached to the inside of a box-shaped frame, and an impeller storage portion is provided at a lower portion of the flow passage casing. 3. The unit type pump gate according to claim 1, wherein the unit type pump gate is a vortex pump configured by storing a vehicle and installing a driving means outside the impeller storage portion. The unit type pump is configured by supporting and fixing a vertical shaft pump in a box-shaped frame body, and attaching a plate member constituting a part of the frame body to a downstream surface of the frame body. The unit type pump gate according to claim 1 or 2, characterized by the above. The unit type pump is configured by supporting and fixing a horizontal shaft type pump in a frame body, and a plate member constituting a part of the frame body is attached to a surface on the upstream side of the frame body. The unit type pump gate according to claim 1 or 2. A plurality of unit type pumps configured by assembling a pump, a pump suction port, and a pump discharge port as a unit constituting a part of the pump gate,
A gate frame having openings in parallel;
A unit-type pump gate comprising a gate that opens and closes a water channel by mounting the unit-type pumps in parallel so as to close the openings provided in the gate frame. The unit-type pump gate according to claim 6, wherein the plurality of unit-type pumps are arranged in parallel but spaced apart from each other on the gate frame. The unit type pump gate according to claim 6 or 7, wherein a front surface of the unit type pump is fixed to a gate frame in a direction parallel to the flow of water.

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