JP2003322077A - Water supply device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide water supply device and method for saving operation cost and discharging water in a low water level region stored on a low water level side represented by the inside of a temporary closing of a construction etc., of a river and a reservoir etc., within a bank in a zone in a circular bank to the outside of the closing, a high water level region or a ceiling river located higher than the water by a simple device. <P>SOLUTION: This device comprises a water supply means 20 provided with a water supply pipe 14 (including the water supply pipe 14 provided with a deaeration device 14a for eliminating gas within the pipe 14) for linking water in the low water level region 11 and water in a water storage tank 13 having a depth capable of securing a water level below the water surface of the low water level region 11 by a siphon action and a water pumping means 30 provided with a water pumping device for driving natural energy as a power source. In this method, the water in the low water level region is introduced into the water storage tank 13 by the water supply device 10 having the water pumping means 30 driven by natural energy and the water supply means 20, and the water of the water storage tank 13 is pumped up and supplied to the high water level region 12 by the water pumping means 30. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary cutoff point where an obstacle is provided to prevent a river from being constructed during construction of a river, or a low water level represented by a low pond such as a pond in the Wachu area. The present invention relates to a water supply device that discharges water on the water level side to a high water level region or a ceiling river located at a higher position than these, and a water supply method using this water supply device.

[0002]

2. Description of the Related Art Conventionally, when constructing a river, a waterway or the like, or when constructing a bridge girder or a dam, an obstacle is provided so as to surround the construction site and a temporary shutoff construction is performed. The water accumulated inside the temporary cut-off works is generally driven by an engine generator to drive a water pump to flow to the outside of the temporary cut-off works through a hose.

Further, in a low area represented by the Wachu area and the like, drainage facilities such as drainage pumps installed in conventional drainage pump stations have been arranged at a location lower than rivers.
Therefore, for example, in the 2000 Tokai heavy rain, the drainage pump station was inundated before the operation of the drainage pump, the electric system was broken, and the drainage pump could not be operated, resulting in a large-scale inundation disaster.

In the equipment of the drainage pump station, commercially available electric power or engine type generator is used as a driving source for the water pump including the water pump. This is the same at the construction site.

[0005]

However, when a temporary power lead-in line for driving the water pump is installed, it takes a long time from application to the power company to lead-in work, and construction cost and power consumption are low. There is a problem that the price will be high.

Further, carbon dioxide is generated in association with power generation and, as a result, contributes to the promotion of global warming. Therefore, the reduction of carbon dioxide is an environmental problem on a global scale.

On the other hand, the use of the engine type generator causes the following problems. 1. Since it is necessary to refuel regularly, maintenance is troublesome. Since the drainage work is performed day and night, the burden on the worker who refuels is heavy. 2. Driving costs such as fuel consumption increase. 3. Engine exhaust gas causes environmental pollution. 4. There is a lot of noise, which is a nuisance to the neighborhood especially at night.

The present invention has been made in view of the above circumstances, and an object of the present invention is to save operating costs and to use a simple device to temporarily cut off a river construction or the like, or a reservoir pond in the Wainaka area. To provide a water supply device and method using natural energy that discharges the water in the low water level area, which is represented by, for example, the low water level side, to a high water level area or a ceiling river located higher than these. To do.

[0009]

In the present specification, the terms "low water area" and "high water area" are used as relative terms with the water level as an index, for example, "
"Low water level area" means the place where the water level is lowered in the temporary cutoff part such as construction of the river, and the circled area, etc., and "high water level area" is the main river part outside the cutoff part. It means a broad sense, including a river and a ceiling, and does not limit its substantial form.

The means adopted by the present invention to solve the above problems are as set forth in the appended claims.

That is, the invention of claim 1 is a water supply device for moving water in a low water level region to a high water level region located higher than the low water level region, wherein the water in the low water level region and the water Equipped with a water supply means equipped with a water supply pipe that connects by siphoning with water in a water tank having a depth that can secure a water level below the water level in the water level area, and a pumping device that drives using natural energy as a power source. It is characterized by comprising a pumping means, wherein the water sending means guides water in a low water level region to a water tank, and the water pumping means pumps up the water in the water tank to a high water level region and sends the water.

According to a second aspect of the present invention, in the water pumping apparatus according to the first aspect, there is provided a water feed pump at the water absorption side end of the water feed pipe for immersing in the low water level region, and the water discharge side end at the other end is the water pump. What is submerged in the water in the water tank is the gist.

According to a third aspect of the present invention, in the water supply apparatus according to the first or second aspect, the water supply pipe has an opening / closing device at a tip of a water discharge side thereof and a deaeration device for eliminating gas in the water supply pipe. The gist of the equipment is to be installed so as to get over the cutoff part surrounding the low water level area.

According to a fourth aspect of the present invention, in the water supply apparatus according to any one of the first to third aspects, the position of the suction-side tip of the pumping pipe is higher than the discharge-side tip of the water pipe. What is provided is the summary.

According to a fifth aspect of the present invention, in the water supply device according to any one of the first to fourth aspects, the position of the suction side tip of the pumping pipe is higher than the suction side tip of the water pipe. What is provided is the summary.

However, in the water supply device according to claims 4 and 5, when the pumping device is a continuous slide type driven by natural energy as a power source, the "tip on the suction side of the pumping pipe" is , "Bottom end of continuous crane-type pumping equipment".

According to a sixth aspect of the present invention, in the water supply device according to any of the first to fifth aspects, the power source for driving the water pumping device is any one of a water turbine, a wind turbine, and a solar power generator. Use as a summary.

According to a seventh aspect of the present invention, in the water supply apparatus according to the sixth aspect, the power source for driving the pumping apparatus is a water turbine, and when the water level of the river in the high water level region reaches a desired predetermined water level. What is set to the rotating height,
The summary will be given.

The "desired predetermined water level" is a water level set in advance such as a caution water level or a warning water level of a river, but is not limited to only the caution water level or the warning water level. Instead, it can be set arbitrarily.

The invention of claim 8 is the water supply device according to claim 6, wherein the power source for driving the pumping device is a wind turbine and the low water level region is an obstructing water region. .

According to a ninth aspect of the present invention, in the water supply device according to any one of the first to eighth aspects, the water tank is installed by an auger construction method outside a shutoff portion surrounding a low water level region. Is the gist.

Next, the invention of claim 10 is defined by claim 2
It is a submersible pump with which the water supply apparatus in any one of 9 is provided, Comprising: The submersible pump, the branch water absorption pipe formed so that this submersible pump may be surrounded, and the opening-closing valve with which the water intake of this branch water absorption pipe was equipped. It is characterized in that the on-off valve is provided below the discharge port of the submersible pump.

Next, the invention of claim 11 is a method of transferring water in a low water level region to a high water level region higher than the low water level region, wherein the water in the low water level region is: The water in the low water level area is introduced to the water storage tank by a water supply means having a water pipe that connects the water in the water storage tank with a depth that can secure a water level below the water surface in the low water level area by a siphon action. Then, a characteristic feature is that the water in the water storage tank is pumped to the high water level area by a pumping means provided with a water pumping apparatus that is driven by using natural energy as a power source.

According to a twelfth aspect of the present invention, in the water supply method according to the eleventh aspect, the water supply pipe has a water supply pump at a tip on the water absorption side and an opening / closing device at a tip on the water discharge side at the other end.
Further, the gist of the present invention is to have a deaeration device for removing the gas in the water supply pipe, which is attached so as to get over the cutoff portion surrounding the low water level region.

The invention of claim 13 is the invention of claim 11 or 12.
In the water supply method according to claim 1, the power source for driving the pumping device is a water turbine, and the one set to a rotating height when the water level of the river in the high water level region reaches a desired predetermined water level, Use as a summary.

The invention of claim 14 is the invention of claim 11 or 12.
In the water supply method described in [1], the gist is that the power source for driving the water pumping device is a wind turbine and the low water level region is a blockage water region.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a water supply device of the present invention will be described in more detail below with reference to specific examples shown in the drawings, which are representative ones. However, the present invention is not limited to the following examples as long as the gist thereof is not exceeded.

FIG. 1 shows a water supply device 10 according to an embodiment of the present invention.
FIG. 2 is a front (cross-sectional) view schematically showing the whole of FIG. 2, and FIG. 2 is a side view of the main part of the water supply means equipped in the water supply device 10.

In the figure, this water supply device 10 is temporarily installed in the vicinity of the water in the low water level area 11 and the high water level area 12, and a water tank 1 capable of ensuring a water level below the water level surface of the low water level area 11.
3 is provided with a water supply means 20 having a water supply pipe 14 which is connected to water by a siphon action, and a pumping means 30 provided with a rotary pump 40 (pumping device) driven by a water turbine 31 using natural energy as a power source. , And, for example, to discharge the water in the low water level region 11 inside the shutoff portion 18 surrounding the low water level region to the high water level region 12 located higher than the low water level region 11. is there. However, the water storage tank 13 only needs to secure a water level below the water level surface of the low water level area 11, and may be temporarily installed in the water level area 11, for example.
A reservoir pond existing in the water level area 11 can be used as it is.

The water supply means 20 includes the water supply pipe 14 and the water supply pipe 1.
4, a water supply pump 16 provided at the water absorption side end (water intake port) of 4 and immersed in water in the low water level region 11, an opening / closing device 17 provided at the water discharge side end (discharge port) of the other end, and a water supply pipe 14 It is configured to include a deaerator 14a for deaerating and removing the air in the inside, and the discharge port faces the water tank 13 at a position lower than the water surface of the low water level region 11, It is designed to be immersed in water. However, the water supply means 20 does not limit the configuration as long as the water in the low water level area 11 and the water in the water storage tank 13 can be connected by a siphon action. For example, the water in the water supply pipe is buried so that it naturally flows down. In this case, the water supply pump 16 may not be provided at the water absorption side end of the water supply pipe 14.

When the deaerator 14a is arranged above the uppermost part of the obstacle (for example, the cutoff portion 18), water can be passed over the obstacle (for example, the cutoff portion 18), which is preferable. .

The water feed pump 16a, which is the first embodiment of the water feed pump, is disclosed in Japanese Patent No. 3099227 as shown in FIG.
1 has a well-known submersible pump 21 and a branch water absorption pipe 22, and the submersible pump 21 is a commercially available electric power or an electric power obtained from an engine generator or a power storage device. Will be operated appropriately.

The branch water absorption pipe 22 is formed so as to surround the submersible pump 21, and its tip 22a is immersed in water. The branch water absorption pipe 22 is connected to the water supply pipe 14 at a position on the discharge side of the submersible pump 21, and an opening / closing valve 25 for opening and closing a water intake port is provided on the water absorption side of the water supply pipe 14.

When the water in the low water level area 11 is stored and the water level rises, the water pump 16a (that is, the submersible pump 2)
1) is driven. The water sucked by the submersible pump 21 is moved into the water tank 13 through the water pipe 14.

When the water supply pipe 14 is filled with water by this water supply, the water supply pump 16a is stopped. Submersible pump 21
The water passing through is temporarily stopped, but due to the siphon action, it is continuously sucked from the branched water absorption pipe 22 and reaches the water transmission pipe 14,
Further, the water is sent to the water storage tank 13, and the water level in the low water level region and the water level in the water storage tank become the same height, and a steady state is achieved. That is, the water supply pump 16a can be operated only in the initial period until the flow of water in the water supply pipe 14 becomes a steady state, and the subsequent water supply is performed by the siphon action, so that the operation time of the water supply pump 16a is significantly increased. It can be shortened, saves operating costs, does not require the complicated maintenance that was necessary in the case of conventional engine-type generators, and prevents the pollution of environmental pollution and noise due to exhaust gas. There is an effect that can be.

Further, even if the water level in the low water level area 11 is lowered, the water supply pipe 14 is kept full, so that if the water level in the water tank 13 is lowered, the submersible pump 21 is not driven immediately. It is possible to obtain the effect that water is transmitted by the siphon effect.

The on-off valve 25 operates so as to close the water intake port when the submersible pump 21 is driven and open the water intake port when the submersible pump 21 is stopped. The water can be prevented from flowing back from the water intake port, and vortices and the like are not generated around the water intake port, and the water transfer efficiency is improved.

FIG. 5 shows a water supply pump 1 according to the second embodiment.
6b is shown. The water supply pump 16b is provided with a branch water absorption path 52 and a discharge path 53 of the submersible pump 16b, and one end thereof is connected to the water supply pipe 14 (pumping pipe 15).

A connecting portion 54 is provided at the other end of the discharge passage 53, and the submersible pump 21 is detachably connected thereto. Further, the discharge passage 53 is provided with a discharge valve 55 that allows the water discharged from the submersible pump 21 to pass through and blocks the water flowing backward from the water supply pipe 14. Further, the discharge passage 53 is closed to allow the flow of water and air. A shutoff portion 56 is provided for shutting off.

An opening / closing valve 57 is provided in the branch water absorption path 52. The open / close valve 57 maintains a closed state when the submersible pump 21 is supplying water to the water supply pipe 14, and opens when water is supplied by a siphon action.

According to this water feed pump 16b, when the shutoff portion 56 is opened and the submersible pump 21 is driven, a water flow is formed in the water feed pipe 14 in the same manner as described above. Through 52, water is formed by siphoning. Therefore, if the shutoff portion 56 is closed, air does not enter the water supply pipe 14. Therefore, the submersible pump 21 can be removed from the branch water absorption device 51. .

According to the water pump 16b, the discharge passage 5
When 3 is immersed in water, there is no possibility that air will enter the water supply pipe 14, so the shut-off portion 56 is not always necessary, and at least the discharge valve 55 for preventing water loss is provided. If so, the submersible pump 21 can be removed.

Further, since the submersible pump 21 can be removed after the water supply by the siphon action is generated,
In the case of construction in which water is supplied from a plurality of water reservoirs, the submersible pumps 21 can be diverted, and it is not necessary to prepare as many submersible pumps 21 as there are water reservoirs, and equipment costs can be reduced. That is the effect.

The water supply pump according to another embodiment disclosed in Japanese Patent No. 3099227 is also the water supply pump 16 according to the present invention, the details of which are described in Patent No. 3
The description of Japanese Patent Publication No. 099227 is incorporated by reference.

Next, the pumping means 30 has a water turbine 31 and a water feed pump 16 at the suction-side end which is immersed in the water in the water tank 13, and the discharge-side end at the other end is the upper end of the water turbine 31. It is composed of a pumping pipe 15 that protrudes to the above, and a rotary pump 40 (pumping device) that is biased by the rotation of the water turbine 31 to operate. If, for example, a wind turbine or a solar cell that uses other natural energy as a power source is used instead of the water turbine 31, the discharge water from the pumping pipe can be discharged to a closed water area such as a lake.

In the water turbine 31, a rotating shaft of the water turbine 31 is rotatably attached to a bearing portion of a support base, and a large number of bucket-shaped blades 32 are attached to the outer peripheral portion of the water turbine 31. The lower end is designed to rotate under the influence of the main stream of the river.

When the water supplied from the discharge port of the pumping pipe is dropped into the blade 32, the water supplied from the discharge port is reused to urge the water turbine 31 in the rotating direction.
As a result, since the water turbine can be rotated, the efficiency of pumping out water from the water storage tank 13 can be further improved. Further, it is preferable to guide the water supplied from the discharge port to a higher position and drop it toward the blades 32 of the water turbine because the driving force of the water turbine 31 can be increased.

In the rotary pump 40, the rotation of the water turbine 31 is urged via the drive belt 35 to rotate in the direction of arrow E. The structure is designed such that the gear provided on the rotary shaft of the water turbine 31 meshes with the gear mounted on the rotary shaft of the rotary pump to drive the rotary pump 40 by the rotation of the water turbine 31 (not shown). It is a matter that can be changed.

In the rotary pump 40, two vanes 44 are inserted in the holes formed on the center line, and the spring 4
5, the tip of the vane 44 is brought into contact with the inner surface of the cylinder case 44.

In the rotary pump 40, as shown in FIG. 6, the rear side of the vane 44 is the water suction side with respect to the rotation direction of the vane 44, and the sucked water is absorbed by the vane 44 on the opposite side. Discharging. That is, in FIG. 6A, the water sucked in on the rear side of the vane 44A is
As shown in (b) and FIG. 6 (c), it is sequentially discharged by the vane 44B. Meanwhile, in this process, vane 44B
A vacuum portion is formed on the rear side, and water supplied from the pumping pipe 15 is sucked into the vacuum portion. This water is a vane 44A
Thus, as shown in FIGS. 6D and 6A, the ink is sequentially discharged.

The water wheel 31 is rotated and the rotary pump 40 is driven by using this as water to pump out the water in the water storage tank 13 and discharge it to the high water level region 12. Therefore, no electric power is required, and the power line drawing work is performed. You don't have to. Further, since the engine type generator is not used, it has an excellent effect that environmental pollution and pollution do not occur.

Needless to say, a known reciprocating pump, a continuous slippery assembling device, or a spiral pumping device can be used in place of the rotary pump.

[0053]

EFFECTS OF THE INVENTION The water supply device of the present invention uses a siphoner to connect water in a low water level area and water in a water tank capable of ensuring a water level lower than the water level surface of the low water level area with a water hander.
The water in the low water level area is introduced into the water tank, and the water pumped from this water tank is discharged to the high water area.

According to this water supply device, the structure is simple and it can be provided at a low cost, and according to the construction method using this water supply device, a place at a low place (low water level region) in river construction or drainage work in the middle zone The water accumulated in the river can be discharged to higher water level areas and ceiling rivers in higher places.

Further, unlike the conventional water supply device,
The operation of the water pump is only for the initial period, and the subsequent water supply is performed by the siphon action and natural energy as the drive source, so the operation time of the water pump can be significantly shortened, operating costs can be saved, and It does not require the cumbersome maintenance that was required in the case of an engine-type generator, and can also prevent the occurrence of pollution such as environmental pollution and noise due to exhaust gas, and it is highly effective. is there.

[Brief description of drawings]

FIG. 1 is an overall front view schematically showing a water supply device according to an embodiment of the present invention, which is a partial cross-sectional view.

FIG. 2 is a side view of a pumping means equipped in the water supply device.

FIG. 3 is a side view for explaining another usage state of the water supply device.

FIG. 4 is a cross-sectional view of a main part of a water supply pump equipped in the water supply device.

FIG. 5 is a longitudinal sectional view of a main part of another water feed pump.

FIG. 6 is a longitudinal sectional view of an essential part for explaining the operation of the rotary pump.

[Explanation of symbols]

10… Water supply device 11 ... Low water area 12 ... High water area 13… Water tank 14 ... Water pipe 14a ... Deaeration device 15… Pumping pipe 16, 16a, 16b, 16c ... Water pump 17 ... Switchgear 18 ... Deadline 20 ... Water supply means 21… Submersible pump 22 ... Branch water absorption pipe 22a ... Tip 23… Water intake 25 ... Open / close valve 30 ... Pumping means 31 ... Turbine 32 ... feather 35 ... Drive belt 40… Rotary pump 41… Cylinder case 42 ... Vane case 43 ... Open / close valve 44, 44A, 44B ... Vane 45 ... Spring 51… Branch water absorption device 51a ... communication part 52 ... Branch water intake 53 ... Discharge path 54 ... Connection part 55 ... Discharge valve 56 ... Deadline 57… Open / close valve

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F03G 6/00 F03G 6/00 (72) Inventor Takeshi Mabuchi 4 of 203 Inaba, Ohno-machi, Ibi-gun, Gifu F-term (reference) 3H074 AA10 AA12 BB09 BB10 CC11 CC28 CC39 3H078 AA27 AA34 BB11 BB15 BB17 BB19 CC12 CC23 3H079 AA29 BB10 CC03 CC21 CC23 DD22 DD31

Claims (14)

[Claims] 1. A water supply device for moving water in a low water area to a high water area located at a higher place than the low water area, wherein the water in the low water area and the water level below the water surface in the low water area The water supply means is provided with a water supply pipe that connects with water in a water tank having a depth that can secure a water level by a siphon action, and a pumping means provided with a water pumping device driven by natural energy as a power source. A water supply device characterized in that the water supply means guides water in a low water level area to a water storage tank, and the water pumping means pumps up water in the water storage area to a high water level area. 2. A water supply pump for immersing in the low water level region is provided at a water absorption side end of the water supply pipe, and a water discharge side end at the other end is immersed in water in the water storage tank. Item 1. The water supply device according to item 1. 3. The water pipe has an opening / closing device at the tip of the water discharge side and a deaeration device for eliminating gas in the water pipe, and is attached so as to get over a cutoff portion surrounding a low water level region. The water supply device according to claim 1 or 2, which is characterized. 4. The water supply device according to claim 1, wherein a position of a suction-side end of the pumping pipe is higher than a position of a discharge-side of the water supply pipe. Water supply device described in. 5. The water supply apparatus according to claim 1, wherein a position of a suction-side end of the pumping pipe is higher than a suction-side end of the water supply pipe. Water supply device described in. 6. The water supply device according to claim 1, wherein in the water supply device, the water pumping device is operated by any one of a water turbine, a wind turbine, and a solar power generator. 7. A power source for driving the pumping apparatus is a water turbine, and is set to a height at which the water level of the river in the high water level region rotates when it reaches a desired predetermined water level. Item 6. The water supply device according to item 6. 8. The water supply device according to claim 6, wherein the power source for driving the water pumping device is a wind turbine, and the high water level region is a blockage water region. 9. The water supply device according to claim 1, wherein the water storage tank is installed by an auger construction method outside a shutoff portion surrounding a low water level region.
The water supply device according to any one of to 8. 10. A submersible pump provided in the water supply device, comprising: a submersible pump, a branch water absorption pipe formed so as to surround the submersible pump, and an opening / closing valve provided at a water intake port of the branch water absorption pipe. The on-off valve is provided at a position below the discharge port of the submersible pump. 11. A water supply method for moving water in a low water level to a high water level located higher than the low water level, comprising: The water in the low water area is introduced into the water tank by a water supply means having a water pipe that connects the water in the water tank having a depth that can secure the water level by siphoning, and then natural energy is used as a power source. A water supply method characterized in that the water in the water storage tank is pumped to the high water level area and sent by a water pumping means equipped with a water pumping device driven as a source. 12. The water supply pipe comprises a water supply pump at the water absorption side end thereof, an opening / closing device at the water discharge side end of the other end thereof, and a degassing device for eliminating gas in the water supply pipe. The water supply method according to claim 11, wherein the water supply method is provided so as to get over a cutoff portion that surrounds the low water level region. 13. A power source for driving the pumping apparatus is a water turbine, and is set to a height at which the water level of the river in the high water level region rotates when it reaches a desired predetermined water level. Item 11. The water supply method according to Item 11 or 12. 14. The water supply method according to claim 11, wherein the power source for driving the water pumping device is a wind turbine, and the low water level region is a blockage water region.