JP2002212936A - Water intake and drainage method and water intake and drainage equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the construction, reduce an installation space and considerably decrease the construction cost and then provide water intake and drainage equipment capable of avoiding difficulty in installation due to the restriction in space. SOLUTION: One water area 1 and other water area 2 are mutually connected through a water intake and drainage passage penetrated through a partition body such as levee, and a water intake 5 and a drainage pump 6 are separately installed in the water area 1. By stopping the operation of the intake pump 5 and operating the drainage pump 6, water in the water area 1 is drained to the other water area 2; and when the intake pump 5 and drainage pump 6 are in a stop state, primary water intake is performed from other water area 2 to the one water area in a natural flow down state through the water intake and drainage passage 4 and the drainage pump. Also, by stopping the operation of the drainage pump 6 and operating the water intake pump 5, water in one water area 1 is secondarily taken in and supplied to the water intake area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water intake / drainage method and a water intake / drainage device, and more particularly to a water intake / drainage method and a water intake / drainage method capable of greatly reducing the construction cost by simplifying the structure and reducing the installation space. It relates to a drainage device.

[0002]

2. Description of the Related Art Conventionally, for example, a drainage device for draining water from one water area such as an intake water channel or an intake tank to another water area such as a river or a lake, and a primary water intake from the other water area to one water area. The water intake device for performing secondary water intake from one of the water areas to an intake area such as an agricultural waterway has been separately constructed.

[0003]

As described above, in a configuration in which both the drainage device and the water intake device are separately constructed, the structure becomes complicated and a large installation space is required, so that the construction cost is high. At the same time, there is a possibility that installation may be impossible due to space restrictions.

[0004] In view of the above, according to the present invention, by integrating the drainage device and the water intake device, the structure can be simplified, the installation space can be reduced, and the construction cost can be greatly reduced. An object of the present invention is to provide a water intake / drainage method and a water intake / drainage device capable of avoiding a state where installation is impossible due to restrictions.

[0005]

In order to achieve the above object, a water intake / drainage method according to the first aspect of the present invention includes a method of draining water from one water area to another water area and a method of draining water from one water area to another water area. A water intake / drainage method for performing primary water intake to a water area and secondary water intake from one of the water areas to an intake area.A water intake pump and a drainage pump are separately installed in one water area, and a discharge port of the water intake pump is provided. The discharge port of the drain pump is connected to the other water area through the intake / drain passage, and the drain pump is operated with the intake pump stopped to take water from one water area through the intake / drain passage to the other. Drain into the water area, perform primary water intake from the other water area to one water area through the intake / drain passage and the drainage pump with the intake pump and drainage pump stopped, and operate the intake pump with the drainage pump stopped. Of the waters It is characterized in that the secondary water intake to the intake water.

[0006] In addition, according to the invention described in claim 2,
Drainage methods include drainage from one body of water to the other body of water, primary withdrawal from the other body of water to one body of water, primary withdrawal from the other body of water to the body of water, and Intake in which the secondary intake, the secondary intake from one water area to the intake area, and the primary intake from the other water area to the intake area are performed in parallel.
A drainage method, in which a water intake / drainage pump is installed in one water area, and the suction port of the water intake / drainage pump is connected to one water area and the other water area through a first directional switching valve.
The discharge port of the dual-purpose intake / drain pump communicates with the intake area and the intake / drain passage through a second directional switching valve.・ Water in one water area is drained from the drainage passage to the other water area by operation of the drainage pump, and water intake / drainage is performed by switching the first directional switching valve and the second directional switching valve and stopping the intake / drainage pump. The primary intake from the other water area to the one water area is performed through the passage, and the primary intake from the other water area to the intake area is performed by switching the first directional switching valve and the second directional switching valve and operating the combined intake / drainage pump. , The secondary intake from one water area to the intake area is performed by switching between the first and second direction switching valves and the operation of the intake / drainage pump, and switching between the first and second direction switching valves. And water intake / drainage pon It is from one body of water at the operating the secondary water intake and other waters into intake zone and performing in parallel a primary intake to intake zone.

Further, the water intake / drainage device according to the third aspect of the present invention includes a drainage from one water area to the other water area.
A water intake / drainage device for performing primary water intake from the other water area to one water area and secondary water intake from the one water area to the water intake area, wherein one water area and the other water area are mutually connected via an intake / drain passage. A water intake pump and a drainage pump are separately installed in one of the water areas, and the discharge port of the water intake pump communicates with the water intake area, and the discharge port of the water discharge pump communicates with the water intake / drain passage. It is characterized by:

[0008] Further, the water intake and the water supply according to the invention described in claim 4 are provided.
Drainage systems include drainage from one body of water to another, primary withdrawal from the other body of water to one body of water, primary withdrawal of water from the other body of water to one of the bodies of water, and one from one body of water to the body of water. Intake in which the secondary intake, the secondary intake from one water area to the intake area, and the primary intake from the other water area to the intake area are performed in parallel.
In a drainage device, one water area and the other water area communicate with each other via an intake / drain passage, and an intake / drain pump is installed in one of the water areas, and a suction port of the intake / drain pump is provided. One of the water areas and the intake / drain passage are communicated via a first directional switching valve, and the discharge port of the intake / drainage pump is connected to the intake area and the intake / drain passage via a second directional switching valve. It is characterized by being connected to.

According to the first and third aspects of the present invention, a water intake pump and a drainage pump are separately installed in one water area, and one water area and the other water area communicate with each other via a water intake / drain passage. The drainage device and the water intake device are integrated into one, and the operation of the water intake pump and the drainage pump is selected and performed, so that drainage from one water area to the other water area and water discharge from the other water area The primary water intake to one water area and the secondary water intake from the one water area to the water intake area can be performed.

According to the second and fourth aspects of the present invention, an intake / drainage pump is installed in one of the water bodies,
One water area and the other water area communicate with each other via an intake / drain passage, and the suction port of the intake / drainage pump communicates with the one water area and the intake / drain passage via a first directional switching valve. In addition, since the discharge port of the intake / drainage pump communicates with the intake area and the intake / drain passage via the second directional switching valve, the drainage device and the intake device are integrated into one, and the intake / drainage is integrated. By selectively operating / stopping the dual-purpose pump and switching between the first directional switching valve and the second directional switching valve, drainage from one water area to the other water area and primary discharge from the other water area to one water area are performed. Water intake, primary water intake from the other water area to the water intake area, secondary water intake from one water area to the water intake area, secondary water intake from one water area to the water intake area, and primary water intake from the other water area to the water intake area Can be performed in parallel.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the invention described in the first and third aspects. In this figure, 1 is one water area such as an intake channel or an intake tank;
2 indicates the other water area such as a river or lake, and one water area 1
And the other water area 2 are located on both sides of a partition body 3 such as a dike, and the partition body 3 is provided with an intake / drain passage 4 penetrating therethrough. Water area 1
And the other water area 2 communicate with each other.

In the water area 1, a water intake pump 5 and a drainage pump 6 are separately provided. The suction port 5A of the water intake pump 5 opens into one water area 1, and the discharge port 5B has a pumping pipe 5A.
C is connected, and the outlet of the pumping pipe 5C is connected to the inlet of the water intake pipe 7 via the valve 5D, and the outlet of the water intake pipe 7 faces a water intake area such as an agricultural water channel (not shown). The suction port 6A of the drain pump 6 is open to one of the water areas 1, and the discharge port 6B is connected to one end of the water intake / drain passage 4 on the one water area 1 side via a valve 6C.

In the above configuration, the operation of the water intake pump 5 is stopped, the valve 6C is opened, and the drainage pump 6 is operated, so that water in one water area 1 is taken from the water / drain passage 4 to the other water area 2. Can be drained. Therefore, even if a large amount of water flows into one of the water areas 1 due to heavy rain or the like, an excessive rise in the water level of the one water area 1 can be suppressed, and flood damage due to overflow from the one water area 1 can be prevented.

When the water level of one of the water areas 1 is low, and thus the primary water is required from the other water area 2 to the one of the water areas 1, the water intake pump 5 and the drainage pump 6 are stopped.
By opening the valve 6C, the water in the other water area 2 can flow into the one water area 1 through the water intake / drainage passage 4 and the drainage pump 6 in a naturally flowing state to take primary water. Further, the drainage pump 6 is stopped, the water intake pump 5 is operated, and the valve 5D is opened, so that the water in the one water area 1 that has been primarily water-collected is secondary-water-supplied and supplied to the water-intake area (not shown). can do.

That is, according to the first and third aspects of the present invention, the drainage device and the water intake device are combined into one, and the operation and stop of the water intake pump 5 and the drainage pump 6 are selected and performed. Since it is possible to perform drainage from one water area 1 to the other water area 2, primary water intake from the other water area 2 to the one water area 1, and secondary water intake from the one water area 1 to the water area, Compared with the configuration of the above, the construction cost can be greatly reduced by simplifying the structure and reducing the installation space. In addition, it is possible to avoid a state where installation is impossible due to space restrictions.

Next, an embodiment of the invention described in claims 2 and 4 will be described. FIG. 2 is a sectional view showing an embodiment of the invention described in claims 2 and 4. In addition,
The same parts as those of the first and third aspects of the invention shown in FIG.

In FIG. 2, reference numeral 1 denotes one water area such as an intake water channel or an intake tank, 2 denotes the other water area such as a river or a lake, and one water area 1 and the other water area 2 constitute a partition body 3 such as a dike. It is located away on both sides,
A drainage passage 4 is provided through the drainage passage 4.
, One water area 1 and the other water area 2 communicate with each other.

In one of the water areas 1, an intake / drainage pump 8 is provided. The suction port 8A of the intake / drainage pump 8 communicates with the one water area 1 and the end of the water intake / drain passage 4 on the one water area 1 side via the first three-way switching valve 9. Further, the discharge port 8B of the intake / drainage pump 8 communicates with an intake area such as an agricultural waterway (not shown) and one end of the intake / drainage passage 4 on the one water area 1 side via a second three-way switching valve 10. are doing.

That is, the first port P1 of the first three-way switching valve 9 communicates with the suction port 8A of the intake / drainage pump 8, and the second port P2 is connected to the one water area 1 via the intake / drainage pipe 11. The third port P3 is connected to the connecting pipe 1
2 and an end of the intake / drain passage 4 on the one water body 1 side. A first port P1 of the second three-way selector valve 10 communicates with a discharge port 8B of a water intake / drainage pump 8, and a second port P2 is provided via an intake pipe 7 such as an intake area such as an agricultural waterway not shown. The third port P3 communicates with one end of the water intake / drain passage 4 on the one water body 1 side via the communication pipe 13.

In the above configuration, as shown in FIG. 2, the first port P1 and the second port P2 of the first three-way switching valve 9 are communicated with each other, and the third port P3 is switched so as to be shut off. First port P1 and third port P3 of switching valve 10
And the second port P2 is switched off so as to operate the intake / drainage pump 8, so that the water in one water area 1 is taken from the water / drain passage 4 to the other as shown by the flow of the arrow. To the water area 2. Therefore, even if a large amount of water flows into one of the water areas 1 due to heavy rain or the like, an excessive rise in the water level of the one water area 1 can be suppressed, and flood damage due to overflow from the one water area 1 can be prevented.

When the water level in one of the water areas 1 is low, and therefore the primary water is required from the other water area 2 to the one water area 1, as shown in FIG. The second port P2 is communicated with the third port P3, and the first port P1 is switched so as to be shut off. The first port P1 of the second three-way switching valve 10 is communicated with the second port P2, and the third port P3 is shut off. As a result, the operation of the intake / drainage pump 8 is stopped, so that the primary water can be naturally taken from the other water area 2 to the one water area 1 in a naturally flowing state, as indicated by the flow of the arrow.

Further, as shown in FIG. 4, the first port P1 and the third port P3 of the first three-way switching valve 9 are communicated with each other.
The second port P2 is switched to shut off, the first port P1 of the second three-way switching valve 10 is communicated with the second port P2, and the third port P3 is switched to shut off.
By operating the drain / pump 8, the primary water can be taken from the other water area 2 to the water intake area (not shown) as shown by the flow of the arrow.

As shown in FIG. 5, the first three-way switching valve 9 is switched so that the first port P1 and the second port P2 communicate with each other and the third port P3 is shut off. 10, the first port P1 and the second port P2 are communicated,
By switching the third port P3 so as to be shut off and operating the water intake / drainage pump 8, the secondary water intake from one water area 1 to the water intake area (not shown) as shown by the flow of the arrow. Can be.

Further, as shown in FIG. 6, the first three-way switching valve 9 is switched so that the first port P1 communicates with the second port P2 and the third port P3.
0, the first port P1 and the second port P2
By switching to shut off the port P3 and operating the water intake / drainage pump 8, the secondary water intake from one water area 1 shown by the flow of the solid arrow to the water intake area (not shown) and the broken arrow. The primary water intake from the other water area 2 shown to the water intake area (not shown) can be simultaneously performed in parallel.

That is, according to the second and fourth aspects of the present invention, the drainage device and the water intake device are integrated into one, and the operation / stop of the water intake / drainage pump 8 and the first three-way switching valve 9 are performed. And the switching of the second three-way switching valve 10 is selected to perform drainage from one water area 1 to the other water area 2, primary water intake from the other water area 2 to the one water area 1, and the other water area. A primary intake from the water area 1 to the intake area, a secondary intake from the water area 1 to the intake area, and a primary intake from the water area 1 to the intake area. Since the operations can be performed in parallel, the construction cost can be greatly reduced by simplifying the structure and reducing the installation space as compared with the conventional configuration. In addition, it is possible to avoid a state where installation is impossible due to space restrictions.

[0026]

As described above, since the water intake / drainage method and the water intake / drainage device according to the present invention are constituted, the following special effects can be obtained.

According to the first and third aspects of the present invention, the drainage device and the water intake device are integrated into one, and the operation of the water intake pump and the water drainage pump is selectively performed. Drainage to the water area, primary water intake from the other water area to one water area, and secondary water intake from the one water area to the water intake area, thereby simplifying the structure as compared with the conventional configuration. The construction cost can be greatly reduced by reducing the installation space. In addition, it is possible to avoid a state where installation is impossible due to space restrictions.

According to the second and fourth aspects of the present invention, the drainage device and the water intake device are combined into one, and the operation of the water intake / drainage pump is started and stopped, and the operation of the first directional switching valve and the second directional switching valve is controlled. By selecting and performing the switch, drainage from one water area to the other water area, primary water intake from the other water area to one water area, primary water intake from the other water area to the water area, and one water area Since the secondary water intake to the water intake area, the secondary water intake from one water area to the water intake area, and the primary water intake from the other water area to the water intake area can be performed in parallel, compared with the conventional configuration, The construction cost can be greatly reduced by simplifying the structure and reducing the installation space. In addition, it is possible to avoid a state where installation is impossible due to space restrictions.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the invention described in claims 1 and 3;

FIG. 2 is a cross-sectional view showing one embodiment of the invention according to claims 2 and 4 at the time of drainage.

FIG. 3 is a cross-sectional view showing an embodiment at the time of primary water intake from the other water area to one water area.

FIG. 4 is a cross-sectional view showing an embodiment at the time of primary water intake from the other water area to the water intake area.

FIG. 5 is a cross-sectional view showing an embodiment during secondary water intake from one water area to an intake area.

FIG. 6 is a cross-sectional view showing an embodiment in which a primary water intake from another water area to an intake area and a secondary water intake from one water area to an intake area are taken in parallel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 One water area 2 The other water area 4 Intake / drain passage 5 Intake pump 6 Drain pump 8 Intake / drainage pump 9 First three-way switching valve (first directional switching valve) 10 Second three-way switching valve (second directional valve) Switching valve)

Claims (4)

[Claims] Claims: 1. Drainage from one water area to another water area;
A water intake / drainage method for performing primary water intake from the other water area to one water area and secondary water intake from the one water area to an intake area, and separately installing an intake pump and a drainage pump in one water area. The discharge port of the pump is connected to the water intake area, the discharge port of the drain pump is connected to the other water area via the water intake / drain passage, and the drain pump is operated with the intake pump stopped to take water from one water area.・ Water is drained from the drainage passage to the other water area, and water is taken in with the intake pump and the drainage pump stopped. A water intake / drainage method comprising operating a pump to take water from one water area to a water area secondarily. 2. Drainage from one water area to another water area;
A primary withdrawal from the other body of water to one of the water bodies, a primary withdrawal from the other body of water to the withdrawal area, a secondary withdrawal from one of the body of water to the withdrawal area, A water intake / drainage method for performing primary water intake from another water area to an intake area in parallel, wherein a water intake / drainage pump is installed in one water area, and the suction port of the water intake / drainage pump is in a first direction. The water intake / drain passage communicating with one water area and the other water area is connected to the water intake / drain passage through a switching valve, and the discharge port of the water intake / drainage pump is connected to the water intake area and the water intake / drain passage via a second directional switching valve. The water in one water area is drained from the water intake / drain passage to the other water area by switching the first direction switching valve and the second direction switching valve and operating the water intake / drainage pump, and the first direction switching valve and the second direction By switching the switching valve and stopping the intake / drain pump, The primary intake from the other water area to the one water area is performed through the water passage, and the primary intake from the other water area to the intake area is performed by switching the first directional switching valve and the second directional switching valve and operating the intake / drainage pump. The secondary intake from one water area to the intake area is performed by switching the first directional switching valve and the second directional switching valve and operating the intake / drainage pump, and the first directional switching valve and the second directional switching valve are operated. A water intake / drainage method, wherein a secondary water intake from one water area to an intake area and a primary water intake from another water area to an intake area are performed in parallel by switching and operation of a water / drain pump. 3. Drainage from one body of water to another body of water;
A water intake / drainage device for performing primary water intake from the other water area to one water area and secondary water intake from the one water area to the water intake area, wherein one water area and the other water area are mutually connected via an intake / drain passage. A water intake pump and a drainage pump are separately installed in one of the water areas, and the discharge port of the water intake pump communicates with the water intake area, and the discharge port of the water discharge pump communicates with the water intake / drain passage. A water intake / drainage device characterized by that: 4. Drainage from one body of water to another body of water;
A primary withdrawal from the other body of water to one of the water bodies, a primary withdrawal from the other body of water to the withdrawal area, a secondary withdrawal from one of the body of water to the withdrawal area, A water intake / drainage device that performs primary water intake from the other water area to the water intake area in parallel with one water area and the other water area.
An intake / drain pump is installed in one of the water areas, and a suction port of the intake / drain pump is connected to one of the water areas and the intake / drain through a first directional switching valve. A water intake / drainage device, wherein the water intake / drainage device is connected to a passage and a discharge port of a water intake / drainage pump communicates with the water intake area and the water intake / drainage passage via a second directional switching valve.