JPH0672594B2 - Pumping equipment for seawater, etc. - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a pumping apparatus for seawater or the like for pumping water in a water bottom region or deep water to the water surface side by utilizing wave energy. .

[Prior art] Generally, seafood and refurbished aquaculture, marine farms, biomass,
In biotechnology and the like, it is known that deep sea water in the bottom layer of the ocean or the like is mixed with surface water to activate the marine ecosystem, thereby increasing the amount of marine resources.

Therefore, conventionally, a water pumping device has been proposed in which a pump is driven by using a drive source such as an electric motor or an internal combustion engine to forcibly pump deep sea water in the bottom layer of the ocean to near the water surface.

[Problems to be Solved by the Invention] However, in the above-described water pumping device, since a drive source such as an electric motor or an internal combustion engine is used, this often causes a failure due to corrosion due to seawater or sea breeze, The maintenance was difficult. Moreover, since these drive sources require a power source such as a battery and fossil fuel, the operating cost is high, and it is economically inferior.

Therefore, the present invention has been devised to effectively solve the above-mentioned problems, and an object thereof is to provide a novel seawater pumping apparatus that does not require a drive source such as an electric motor or an internal combustion engine. Is.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention has emerged on the sea surface,
The floating body that can move up and down following the wave is provided with a pumping pipe extended so that the upper end opening is located above the sea surface and the lower end opening is located in the bottom layer. In a pumping device for seawater, etc. that is equipped with a check valve for pumping that opens when the above-mentioned pumping pipe descends following up and down and closes when it rises, in the vicinity of the upper end opening of the above-mentioned pumping pipe, in the radial direction from this. A drainage pipe extending to, and the discharge port of the drainage pipe is located at the sea surface or slightly above the sea surface so that the seawater pumped up when the floating body is raised is sprinkled on the sea surface, and A drain check valve for preventing seawater from flowing back into the drain pipe when the floating body descends is provided near the discharge port at the end of the drain pipe.

[Operation] Since the present invention has the above-described configuration, when the pumping pipe descends together with the floating body following the wave, the check valve for pumping opens to allow seawater in the pumping pipe to flow above the pumping pipe and to rise. To
The head check pressure of seawater, which is pumped above the check valve for pumping, causes the check valve for pumping to close. Then, when the pumping pipe further rises as the wave rises, the discharge port of the drain pipe provided near the upper end opening of the pumping pipe is exposed above the sea surface, and the seawater pumped above the pumping pipe heads. It will flow to the drain pipe side due to pressure, and will flow from the discharge port to the surface of the sea. At this time, since the discharge port at the end of the drainage pipe is exposed above the sea surface, the pumping water discharged from the discharge port is exposed to the air while being sprinkled onto the sea surface. Also,
By installing a check valve for drainage near the discharge port at the end of the drainage pipe, seawater on the sea surface side will not flow back into the water distribution pipe from the discharge port, and the seawater will not reciprocate in the drainage pipe and will be pumped up. The direction of seawater flow is always constant, and drainage is performed well.

After that, by repeating the same operation, the water in the bottom layer flowing from the lower end opening of the pumping pipe is sequentially pumped to the sea surface side.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a vertical sectional view showing an embodiment of a pumping apparatus for seawater or the like according to the present invention, and FIG. 4 is a view taken along the line XX.

As shown in the figure, this pumping apparatus for seawater or the like floats above the sea surface, and a floating pipe 1 is attached in a substantially vertical state so as to penetrate the floating body 1 at a substantially central portion that moves up and down following the waves. The lower end opening 2b extends toward the bottom of the sea. A partition plate 4 is formed near the upper opening 2a of the pumping pipe 2, and a main tank 3 is integrally connected to the floating body 1 above the partition plate 4. Also,
A circulation hole 5a for circulating seawater is formed in a substantially central portion of the partition plate 4, and a check valve 5 for pumping is attached to the circulation hole 5a. The pumping check valve 5 is a partition plate 4 with a disk hinged to one end of the partition plate 4, and allows seawater below the partition plate 4 to pass only upward. The disc is provided with a floating body 17 and the like so that it can respond sensitively to the inflow of seawater. That is, since this apparatus is generally very large-scale, the check valve 5 for pumping itself also becomes large and the weight also increases. On the other hand, since the change in water pressure at the bottom of the pumping pipe 2 or the main tank 3 is extremely small, opening / closing of the check valve 5 for pumping becomes difficult. Therefore, by providing the floating body 17 on the disc of the check valve 5 for pumping, the self-weight and buoyancy of the disc are canceled.

A drain pipe 9 is horizontally connected to both side walls of the main tank 3 so that the seawater in the main tank 3 flows in the radial direction of the floating body 1. In addition, a check valve 10 for drainage is provided in the vicinity of the discharge port 9a at the end of the drainage pipe 9 to discharge the seawater in the drainage pipe 9.
While flowing to the 9a side, seawater on the sea surface side is prevented from flowing back to the main tank 3 side.

A sub-tank 40 is formed outside the main tank 3 so as to surround it, and a hole 40a formed in the bottom of the main tank 3 and a hole 2c opened in the side wall of the pumping pipe 2 are connected by a water channel 11. ing. Further, similarly to the main tank 3, a drain pipe 13 is also connected to the side wall of the sub tank 40 in a substantially horizontal direction so that the sea water in the sub tank 40 is drained to the sea surface side. . Also this waterway
A check valve 12 similar to the pumping check valve 5 is provided on the upper part of the pump 11, and the seawater below the partition plate 4 is sub-tank 40.
It is designed to pass only to the side and at the same time the drain pipe
A drain check valve 14 similar to the drain check valve 10 provided in the drain pipe 9 is provided at 13. Incidentally, other waterways of waterway 11
11a is provided with a pump 15 that is connected and driven by a submarine cable (not shown) extended from the land, and forcibly discharges the seawater in the pumping pipe 2 when in a calm state. It can also be pumped up. Further, the floating body 1 is provided with a mooring means such as a chain 16 so that the floating body 1 can be moored at a predetermined position so as not to flow.

Further, a check valve 5 for pumping, which is provided below the water surface in the pumping pipe 2.
As shown in FIG.
A piston 6, a cylinder 7, a piston rod 8 and the like are also provided, and by applying pressure in the cylinder 7, the valves 5 and 12 can be freely opened and closed, and the operations such as locking can be freely performed as needed.

This forced opening / closing device will be described by taking the check valve 5 for pumping as an example.
First, a floating body 17 (buoyancy chamber) is provided on the disc of the check valve 5 for drawing up, and a lug 18, a link 19, a piston rod 8, a piston 6 and the like are connected to the upper portion thereof as shown in the figure. Also,
The cylinder 7 faces downward and is firmly fixed to the floating body 1 or the aggregates or the like on the upper portions of the tanks 3 and 40 by the support 20 and the like. Water, air, oil, etc. are used.

Next, the basic operation of this embodiment will be described.

FIG. 2A is a schematic diagram showing a state when the device of the present invention comes to a trough portion of a wave, and FIG. 2B is a schematic diagram showing a state when the device of the present invention comes to a crest portion of a wave. As is clear from the views of FIGS. 2A and 2B, in the water outside the floating body 1 and in the pumping pipe 2 and the main tank 3, the former has a large motion of water particles due to the waves, and the latter has a small motion. Means there is.

In the above, first, as shown in FIG. 2A, when the wave descends and this device becomes a trough of the wave and moves below the horizontal sea level, the inside of the main tank 3 becomes a negative pressure state and the pumping reverse The stop valve 5 opens, and the seawater in the lower part of the main tank 3 passes through the check valve 5 for pumping, moves upward in the pumping pipe 2, and is pumped into the main tank 3. When the device reaches the bottom of the wave trough, the water pressures in the main tank 3 and in the lower pumping pipe 2 become the same, and the flow of seawater in the pumping pipe 2 stops.

Next, when the wave gradually rises and the device starts to rise, the water pressure in the main tank 3 becomes higher than the inner pressure of the pumping pipe 2 below it, and the lid of the pumping check valve 5 closes, and the main tank 3 The seawater inside is lifted to the sea surface side as the waves rise. When this water crosses the horizontal sea surface and reaches the top of the wave, the drain pipe 9 and its discharge port 9a begin to be exposed above the sea surface, and at the same time, the sea water in the pump pipe 2 above the check valve 5 for pumping Due to the water head pressure, the drain check valve 10 opens, and the seawater pumped into the main tank 3 passes through the drainage pipe 9 and is drained to the surface of the sea from the outlet 9a. Further, at this time, the discharge port 9a is exposed on the surface of the sea, and this drainage is sprinkled while being aerated like being exposed to the air. Therefore, a large amount of oxygen can be dissolved in the low-layer water pumped in the oxygen-deficient state, and the activation of seawater is effectively achieved. Then, when the device descends again due to the movement of the waves, the inside of the tank becomes in a negative pressure state, but the drain check valve 10 provided near the drain port at the end of the drain pipe 9 closes, so that the water surface side is closed. The seawater will not flow back into the main tank 3. Moreover, since the drain check valve 10 is provided in the vicinity of the drain port 9a of the drain pipe 9, the seawater reciprocates in the drain pipe 9 to adversely affect the opening / closing operation of the drain check valve 10. Nor.

Then, by repeating the same vertical movement thereafter, the seawater on the seabed side is well pumped up while being aerated above the sea surface, and is mixed with the surface water.

Next, as shown in FIG. 1, when the seawater is pumped up using the sub tank 40, the operation is the same as that described above. However, since the waves are irregular, according to the present invention, a plurality of tanks such as the main tank 3 and the sub tank 40 can be properly used to adjust the pumping amount of seawater according to the wave conditions.

Next, the operation of the valve opening / closing device will be described. As shown in FIG. 3, first, when the valves 21 and 22 are opened, the piston 6 in the cylinder 7 is in a neutral state and the pumping check valve 5 can respond sensitively to the inflow of seawater. Next, when the pump 25 is driven to close the valves 22 and 24 and open the valve 23, the piston 6 advances upward and closes the valves 21 and 23 to open the valves 24 and 22, and the switching operation is performed to open the piston 6. The number of tanks is adjusted by lowering and locking the check valve 5 for pumping. Therefore, by using this valve opening / closing device, the pumping amount of seawater can be arbitrarily controlled.

As described above, since the device of the present invention can pump seawater by utilizing the energy of vertical movement of waves, electric power and fuel are unnecessary, and maintenance and cost reduction are achieved. In the above-mentioned embodiment, the device of the present invention is shown as an example provided on the surface of the sea, but the device of the present invention is
Of course, it can be used not only in the sea but also in lakes and marshes.

[Effects of the Invention] As described above in detail, according to the device of the present invention, seawater can be pumped up by utilizing the energy of vertical movement of waves.
Electricity and fuel are not required, maintenance and cost reductions are achieved, and the pumped low-layer seawater is mixed with the surface water while being aerated, so it is possible to mix a large amount of oxygen. Activation is achieved.
Therefore, it is possible to rapidly accelerate the purification of seawater against marine resources, future marine development industries, biotechnology, environmental pollution problems, etc., and it has an excellent effect that it greatly contributes to humankind.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a pumping apparatus for seawater or the like of the present invention, FIG. 2A is a schematic explanatory view showing a state where the apparatus of the present invention is in a wave trough, and FIG. 2B is a book. FIG. 3 is a schematic explanatory view showing a state in which the invented device is located at a mountain portion of a wave, FIG. 3 is an explanatory view showing a forced valve opening / closing device, and FIG. 4 is a view taken along line XX in FIG. In the figure, 1 is a floating body, 2a is an upper opening, 2b is a lower opening, 2 is a pump pipe, 5 is a check valve for pumping, 9 is a drain pipe, 9a is a discharge port,
10 is a check valve for drainage.

Claims (1)

[Claims] 1. A floating body which floats on the sea surface or the like and is movable up and down following a wave so that the upper end opening is located above the sea surface and the lower end opening is located on the bottom layer. A pumping device for seawater or the like, comprising a pipe, wherein the pumping pipe is opened when the pumping pipe descends in response to the rising and lowering of a wave, and is closed when the pumping pipe rises. A drain pipe extending in the radial direction is connected to the vicinity of the upper end opening of the drain pipe, and the discharge port of the drain pipe is connected to the sea surface or the sea surface so as to sprinkle seawater pumped up when the floating body is raised. A drain check valve for preventing seawater from flowing back into the drain pipe when the floating body descends is provided near the outlet of the drain pipe at a position slightly above the sea surface. A pumping device for seawater.