JPH0418812B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device that promotes the production of natural feed and aims at the natural proliferation of fish and shellfish by pumping up and spraying deep sea water in marine fishing.

[Conventional technology]

Deep ocean water contains large amounts of nutrients for phytoplankton, seaweed, etc., which are food for fish and shellfish. Therefore, if such deep water is supplied near the ocean surface, the natural feed in the nearby sea area will increase, and as a result, released fish and natural fish can be collected and retained in the sea area.

In this way, the concept of creating artificial upwelling currents in the center of fishing grounds and replenishing nutrients to the sea surface and upper layers has traditionally been to create artificial upwelling currents in the center of fishing grounds that are suspended from large-scale floating structures such as offshore bases or disk-shaped or rectangular floating bodies. It has been proposed that deep water be pumped up through pipes, pumps or air lifts and then sprayed near the surface.

In addition to a power engine, ocean temperature difference energy may also be used as a power source.

[Problem to be solved by the invention]

However, pumping up deep water requires long intake pipes of 200 to 300 m, and conventionally proposed devices require a large power plant to obtain the necessary effectiveness. , and the floating body on which it is installed will also be large. Such large floating bodies are difficult to moor, and construction, operation, and maintenance costs also rise.

By the way, as a device for pumping up deep water without using power, there is a device disclosed in Japanese Patent Publication No. 57-61384, for example.

This is done by floating a cylinder equipped with check valves for suction and discharge on the sea surface using a float with its center line facing up and down, fitting a piston inside the cylinder, and then lowering the rod of the piston. The above rod is connected to the upper end of the connector which protrudes downward from the bottom plate of the cylinder through a seal and whose lower end is fixed to the seabed to keep the vertical position of the piston constant. It is a system that connects the upper ends of pumping pipes that open into a body of water.

However, in the device shown in Japanese Patent Publication No. 57-61384, a piston is further fitted into the cylinder, and the member that absorbs waves on the sea surface and the member that pumps up bottom water are different, and the number of parts is reduced. In addition, the structure is complex because each member has a different function, with the piston absorbing ocean waves and the cylinder using this force to pump bottom water near the sea surface. Become.

Therefore, as described above, a device with a large number of parts and a complicated structure is required to be large in itself, and the floating body on which it is installed is also large. Such large floating bodies are difficult to moor, and construction costs, operating costs, and maintenance costs also rise.

Further, there are many examples of devices for pumping up deep water without using power, as shown in Japanese Utility Model Application No. 52-86007.

This is done by opening the upper end of a pumping pipe whose lower end reaches the bottom water area at the bottom of a tank placed at sea so that the bottom plate is below the sea level at low tide, and preventing the tank from moving up and down due to the ebb and flow of the tide. is fixed to the seabed with a rope, etc., and a suction check valve is installed at the connection between the lift pipe and the bottom of the tank or inside the lift pipe, and a discharge check valve is installed to discharge the bottom layer water in the tank using the difference in water head between the inside and outside. It is "something".

However, in the system shown in Japanese Utility Model Publication No. 52-86007, the tank and lift pipe are connected, and the number of parts is improved over that shown in Japanese Patent Publication No. 57-61384. However, there is nothing to absorb waves from the sea.

In other words, although the tank is fixed to the seabed with ropes, etc., the point of the tank floating on the sea surface moves, and it is difficult to imagine that bottom water can be reliably pumped into the tank.

This device can also be used to pump up bottom water.
Valves for intake and drainage are provided only on the tank side. Moreover, since this tank also serves to store bottom water, the structure is complicated, and the load placed on it is extremely large, which may lead to breakdowns.

Therefore, a device with such a complicated structure,
As mentioned above, something large is required,
Furthermore, the floating body on which it is installed will also be large. Such large floating bodies are difficult to moor, and construction, operation, and maintenance costs also rise.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
Since it utilizes the kinetic energy of waves, there are no operating costs, and moorings can be short, and a stable state can be maintained without placing unbalanced loads on components. Moreover, it is an object of the present invention to provide a deep water pumping device that has a simple and compact overall structure, is easy to install, maintain, and remove, and can realize cost reduction.

[Means to solve the problem]

In order to achieve the above object, the present invention consists of a long water intake pipe and a short outer pipe that is slidably fitted into the upper part of the water intake pipe. The upper part is configured as an inner pipe through a diameter-enlarging part that gradually expands in diameter, and a sinker is attached via a wire from the lower end as the drinking spout,
In addition, a float is provided on the outer periphery of the enlarged diameter part, and further,
A spherical valve that opens only upwards is installed near the upper end opening of the inner pipe, a floating body is installed on the outer periphery of the upper part of the outer pipe, the upper end is opened to serve as a drain port, and a spherical valve that opens only upwards is installed near this drain port. The main idea is that the water intake pipe and the outer pipe are connected with a wire to prevent separation.

[Effect]

According to the present invention, since the lower part of the water intake pipe is fixed with a sinker, only the outer pipe moves up and down due to the up and down movement of waves. As a result, the valves installed inside the outer pipe and the water intake pipe act as a pump between the valves.
The valves that act as a pump as described above sequentially pull up the deep water taken in from the mouth and spray it onto the sea surface or upper layer through the opening at the upper end of the outer chamber.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIGS. 1 and 2 are longitudinal sectional front views showing one embodiment of the deep water pumping device of the present invention, and in the figures, 1 indicates a water intake pipe with an open lower end and a spout 2 above the taper. The water intake pipe 1 may be as long as 200 to 300 m, and the upper part is configured as an inner pipe 7 through an enlarged diameter portion 6.

A sinker 4 is attached to the lower end of the water intake pipe 1 via a wire 3, a spherical float 5 is provided on the outer periphery of the enlarged diameter portion 6, and a spherical valve 11 that opens only upward is provided near the upper end opening of the inner pipe 7. Built internally.

8 in the figure is a short outer tube with a disk-shaped floating body 9 on its upper outer periphery and an open upper end with a drain port 8a, and a spherical valve 12 that opens only upwards near the drain port 8a.
will be installed internally.

Then, the lower part of the outer pipe 8 is slidably fitted to the upper part of the water intake pipe 1 which becomes the inner pipe 7, and the outer pipe 8
The floating body 9 was connected to the water intake pipe 1 side, for example, to the float 5 or its vicinity via a detachment prevention wire 10.

The valves installed in the inner tube 7 and the outer tube 8 may be plate-shaped or other shapes, and the float 5 and the floating body 9 may also have other shapes.

Next, usage and operation will be explained.

Due to the buoyancy of the floating body 9 and the float 5, the water intake pipe 1 and the outer pipe 8 fitted thereto are raised from near the seabed, and the lower end of the water intake pipe 1 is moored to the seabed with a sinker 4.

As the waves rise as shown in FIG. 1, the outer pipe 8 also rises via the floating body 9, and the valve 1 of the outer pipe 8
2 is closed.

At this time, the volume inside the outer tube 8 protruding from the inner tube 7 expands, and a negative pressure is created between the valves 11 and 12 by that much, so the valve 11 on the inner tube 7 side is opened and water is taken in from below. In this way, deep water is taken in from the mouth 2 of the water intake pipe 1 by the amount of water that enters between the valves 11 and 12.

Next, as shown in FIG. 2, when the wave goes down, the outer tube 8 also goes down, which closes the valve 11 of the inner tube 7, and the volume between the outer tube 8 and the inner tube 7 decreases, making the correction correct by that amount. As a result, the valve 12 on the outer tube 8 side opens upward, and the water between the valves 11 and 12 is forced upward, flows out from the drain port 8a, and is scattered around the floating body 9.

In this way, each time the wave moves up and down, the valve 1
1 and the valve 12 repeatedly move away and approach each other to perform a pumping action and discharge water upward little by little, so that deep water is taken in from the spout 2 one after another and sprayed on the sea surface and upper layer.

〔Effect of the invention〕

As described above, the deep water pumping device of the present invention promotes the growth of phytoplankton and seaweed,
In order to promote the natural proliferation of fish and shellfish and to create marine farms and artificial fishing grounds, wave motion was used to generate artificial upwelling currents and disperse deep-layer nutrients to the sea surface, creating a special power source. There is no need for it, and there are no operating costs. Furthermore, there is no need to install a pump or other prime mover, and the floating body can be made smaller.

In addition, since the entire structure is tubular and compact, and the mooring is done only at the lower end of the water intake pipe, the wire needed for this purpose can be short and a stable state can be maintained.

In this way, the overall structure is simple and compact, easy to install, maintain, and remove, and at low cost.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view showing one embodiment of the deep water pumping device of the present invention when a wave is rising, and FIG. 2 is a longitudinal sectional front view when the same wave is falling. 1... Water intake pipe, 2... Spout, 3... Wire,
4... Sinker, 5... Float, 6... Expanded diameter part, 7... Inner pipe, 8... Outer pipe, 8a... Drain port,
9... Floating body, 10... Detachment prevention wire, 11,
12... Spherical valve.

Claims (1)

[Claims] 1 Consists of a long water intake pipe and a short outer pipe that is slidably fitted into the upper part of the water intake pipe. The upper part is configured as the inner pipe,
A sinker is attached via a wire from the lower end of the spout, a float is provided on the outer periphery of the enlarged diameter part, and a spherical valve that opens only upward is installed near the upper end opening of the inner pipe, and the outer pipe is attached to the upper part of the spout. A floating body is provided on the outer periphery, the upper end is opened to serve as a drain port, a spherical valve that opens only upward is installed near the drain port, and the intake pipe and the outer pipe are connected with a separation prevention wire. Deep water pumping equipment.