JP4280880B2 - Wave pump incorporating fluctuation phenomenon - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is operated with the use of wave energy, which is clean natural energy, in today's world where global warming, destruction of the global environment, depletion of energy resources, and the like, and the oceans, dams, lakes, etc. Water supply for farms, seawater pumping power generation, seawater desalination, etc., refining by converting the outside seawater and the inside seawater in closed water areas, etc., circulating the upper and lower waters Or let the eutrophied contaminated water staying in the bottom layer of the lakes, etc., be sent to the back of the reeds that grow in the lakes, etc. The present invention relates to a high-efficiency wave power pump that can purify water by utilizing the respiration action of vegetation.
[0002]
And by purifying the water exchange of the port, the ocean and dams, lakes, water sources, etc., it is possible to secure marine resources such as seafood and seaweed that are indispensable for human life, and water resources such as drinking water The present invention also relates to fields such as measures for preventing global warming caused by the absorption effect of carbon dioxide by cold water and phytoplankton in seawater and seaweeds.
[0003]
[Prior art]
In a water area that is isolated from the open ocean and partially closed, such as a harbor, the water flow is slow and the water on the surface and bottom is difficult to mix. It is easy to stagnate without oxygen. In addition, the layer formed in the vicinity of the water surface (hereinafter referred to as the upper layer) tends to lack nutrients essential for plankton growth.
[0004]
For this reason, in the above closed water areas etc., it is desired to mix upper water and bottom water.
[0005]
On the other hand, as a means for supplying seawater and the like using natural energy, a “wave power pump” (Japanese Patent Publication No. 8-6677) that supplies water using wave power is generally known. As shown in FIG. 11, the wave pump 90 has a piston 92 slidably disposed in a cylinder 91 supported in water, and the piston 92 is connected to a float 94 connected via a chain 93. The water is moved up and down with the water.
[0006]
Since the wave power pump 90 operates by using the vertical movement of the wave, it does not require any energy source that leads to environmental pollution such as oil, and has the feature that it operates semipermanently once it is installed. It is an excellent wave power pump.
[0007]
Therefore, when the wave power pump 90 is used as a water supply means for mixing the upper layer water and the bottom layer water such as a closed water area, it can be expected to continue mixing the upper layer water and the bottom layer water semipermanently at a low cost.
[0008]
[Problems to be solved by the invention]
However, in order to take the upper layer water with this wave pump 90, the intake port must be located near the water surface, so the intake pipe 95 is formed to have a length that reaches the vicinity of the water surface and a separate buoy or the like. Must be hung. On the contrary, the same can be said when the bottom water is sent to the upper water. For this reason, there is a problem that the entire apparatus becomes cluttered, water supply efficiency is lowered, and production costs are increased.
[0009]
Further, since this pump transmits the force of the float 94 to the piston 92 through the chain 93, there is a problem that the wear of the chain or the like is severely damaged.
[0010]
Next, since the pump is moored with a chain or the like, there is a problem that the concrete caisson becomes too large for the pump output to be incorporated into a concrete caisson such as a breakwater.
[0011]
Since the ring pipe 96 of the joint ring is formed on the outer periphery of the cylinder 91, not only the strength problems such as bending moment and torsion moment with respect to this, but also the inertial force due to the pulsating flow of the fluid flowing therethrough is obtained. There was also a problem that the resistance increased and the water supply efficiency deteriorated.
[0012]
Although not shown in the figure, these are improvements of the above, and there is Japanese Patent Application No. 8-323093. However, since the float and the cylinder are fixed, the fluctuation action due to the fluctuation phenomenon of the float can be effectively achieved. The relative reciprocal motion of the device could not be incorporated, and there was a big problem in the efficiency of the device.
[0013]
Therefore, an object of the present invention is to solve the above-mentioned problems, to continuously mix the upper layer water and the lower layer water efficiently and semipermanently with a simple structure, or to connect the upper layer water rich in oxygen by connecting to the air. Energy saving and resource saving effects by sending water to aquaculture farms or other places for water supply, or by using seawater pumped power generation or seawater desalination using pressure water obtained from the apparatus of the present invention It is in providing the wave power pump which can exhibit.
[0014]
[Means for Solving the Problems]
  In order to achieve the above object, the present invention provides:A lower piston communicates with a pipe provided in water, and a hollow piston pipe extending upright and standing up toward the water surface is provided to be tiltable via a universal joint, and a piston portion is formed on an upper outer periphery of the hollow piston pipe. A cylinder that defines a cylinder chamber is fitted on the outer periphery of the piston portion so as to be slidable up and down, and a float for moving the cylinder up and down is provided on the cylinder. In the wave pump that is connected through and operates with wave energy,
A saddle consisting of a pair of support legs is provided at substantially the center of the float, and a ring body is provided in the pair of support legs via an outer shaft so as to be rotatable around a horizontal axis on the outside. An inner shaft is provided on the inner periphery at a position orthogonal to the outer shaft, and a suspension provided through a suspension pipe at the upper end of the cylinder is inserted into the ring body, and the protrusion protruded from the outer periphery of the suspension A suspension pipe provided at the upper end of the cylinder and the upper end of the cylinder at a universal joint that allows the shaft to be inserted into the bearing portion of the inner shaft and rotatably supported to change the angle between the float and the cylinder. Are fitted, are concentric with the axis of the cylinder, and are provided so as to be rotatable, and the float and the cylinder may be provided so as to be rotatable with a change in angle.
[0015]
  AndA lower piston communicates with a pipe provided in water, and a hollow piston pipe extending upright and standing up toward the water surface is provided to be tiltable via a universal joint, and a piston portion is formed on an upper outer periphery of the hollow piston pipe. A cylinder that defines a cylinder chamber is fitted on the outer periphery of the piston portion so as to be slidable up and down, and a float for moving the cylinder up and down is provided on the cylinder. In the wave power pump that is connected to the cylinder and is provided with a water intake port for taking water in the upper part of the cylinder, operates with wave energy, and supplies water near the water surface.
A saddle consisting of a pair of support legs is provided at substantially the center of the float, and a ring body is provided in the pair of support legs via an outer shaft so as to be rotatable around a horizontal axis on the outside. An inner shaft is provided on the inner periphery at a position orthogonal to the outer shaft, and a suspension provided through a suspension pipe at the upper end of the cylinder is inserted into the ring body, and the protrusion protruded from the outer periphery of the suspension A suspension pipe provided at the upper end of the cylinder and the upper end of the cylinder at a universal joint that allows the shaft to be inserted into the bearing portion of the inner shaft and rotatably supported to change the angle between the float and the cylinder. Is fitted, is concentric with the axis of the cylinder, is provided rotatably, and the float and the cylinder are provided with a change in angle and a universal joint portion provided rotatably.
When the intake port and intake check valve are provided at the top of the cylinder, the float is shaken by the shaking of the wave, the intake check valve opens when the cylinder chamber of the cylinder expands, and closes when the cylinder retracts. Good.
[0016]
  Also,A lower piston communicates with a pipe provided in water, and a hollow piston pipe extending upright and standing up toward the water surface is provided to be tiltable via a universal joint, and a piston portion is formed on an upper outer periphery of the hollow piston pipe. A cylinder that defines a cylinder chamber is fitted on the outer periphery of the piston portion so as to be slidable up and down, and a float for moving the cylinder up and down is provided on the cylinder. In the wave pump that is connected to the cylinder and has a drain outlet for draining water at the top of the cylinder, operates with wave energy, pumps low-rise water near the bottom of the water, and sends it to the vicinity of the water surface.
A saddle consisting of a pair of support legs is provided at substantially the center of the float, and a ring body is provided in the pair of support legs via an outer shaft so as to be rotatable around a horizontal axis on the outside. An inner shaft is provided on the inner periphery at a position orthogonal to the outer shaft, and a suspension provided through a suspension pipe at the upper end of the cylinder is inserted into the ring body, and the protrusion protruded from the outer periphery of the suspension A suspension pipe provided at the upper end of the cylinder and the upper end of the cylinder at a universal joint that allows the shaft to be inserted into the bearing portion of the inner shaft and rotatably supported to change the angle between the float and the cylinder. Is fitted, is concentric with the axis of the cylinder, is provided rotatably, and the float and the cylinder are provided with a change in angle and a universal joint portion provided rotatably.
A drain port for draining water at the top of the cylinder and a check valve for drainage, the float is shaken by the shaking of the wave, the drain check valve closes when the cylinder chamber of the cylinder expands, Open when contracted.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0018]
FIG. 1 is a flow sheet showing the configuration and flow of the apparatus of the wave power pump 1A of the present invention. The range surrounded by the two-dot chain line at the substantially central portion of this figure is the portion of the apparatus main body incorporated in the wave power pump 1A of the present invention. In addition, on the lower left side of the range surrounded by the two-dot chain line, the intake port 2 of this pump is provided near the bottom 3, and the wave pump 1 </ b> A according to the present invention is connected by the intake tube 4. .
[0019]
On the other hand, there is a water surface S above the range surrounded by the two-dot chain line, and a cocoon 6 is planted on the shore 5 on the right side. The water discharged from the wave power pump 1A of the present invention is sent to the water supply pipe 7, and this pipe is released at the innermost part of the grove 6 planted on the shore 5, where the discharged water is discharged. . Therefore, this water passes along the slope of the shore 5, passes through the grove 6, and is returned to the water 8.
[0020]
In today's environment where closed waters such as harbors and environmental problems such as dams and lakes are taken into account, these water bottoms 3 contain contaminated water that is eutrophied and oxygen-depleted. Nutrient salts such as nitrogen and phosphorus that are carried from rivers on land on a daily basis are deposited on the bottom 3 of the water.
[0021]
The eutrophic bottom layer nutrient salt (contaminated water) is taken from the wave power pump 1A of the present invention and applied to the roots and stems of the gills 6 on the shore 5, etc., and the respiration of vegetation is effective. It is intended to purify water by using it. At this time, since the bottom layer water contains a large amount of nutrients such as nitrogen, phosphorus, silicon, etc., it grows as a unique fertilizer for growing plants such as flora.
[0022]
Therefore, while growing these plants, it absorbs carbon dioxide etc. in the atmosphere, and eventually this grown plant is not far from being used effectively by people as an energy source such as charcoal I think that the.
[0023]
Next, the wave power pump 1A in a range surrounded by a two-dot chain line will be described. In the description of this figure, the detailed portion of the wave power pump 1A will be described later, and only the configuration and operation of the basic portion on the flow sheet will be described.
[0024]
In the configuration of this figure, it is assumed that the float 9 floats on the water surface S. A cylinder 10 is connected to the float 9 via a universal joint or the like at a substantially central portion of the float 9 and below. A piston 12 is provided in the middle of the cylinder 10, and a cylinder chamber 11 is provided above the piston 12. The piston 12 is connected to a hollow piston pipe 14 that is tiltably extended from a communication pipe 13 provided in the water bottom 3.
[0025]
When the float 9 is shaken by a wave, the piston 12 and the cylinder 10 cause a relative reciprocating motion, and water in the communication pipe 13 is sucked and discharged through the hollow piston pipe 14.
[0026]
Below the communication pipe 13 (in FIG. 1), a pipe 15, a valve 16, a water intake check valve 17, a header pipe 18, an accumulator 19, a water intake pipe 4 and the like are connected as shown in the figure. It shall be. Therefore, water taken from the water intake 2 passes through the water intake pipe 4, passes through the accumulator 19, passes through the water intake check valve 17, valve 16, pipe 15, enters the communication pipe 13, and passes through the hollow piston pipe 14. It is possible to enter the cylinder 10.
[0027]
In addition, a pipe 20, a water check valve 21, a valve 22, a header pipe 23, an accumulator 24, a water pipe 7 and the like are shown above the one communication pipe 13 (in the drawing of FIG. 1). It shall be connected. Therefore, the water in the cylinder 10 enters the communication pipe 13 through the hollow piston pipe 14 due to the fluctuation of the float, and the device is supplied from the pipe 20 through the water check valve 21, the valve 22, the header pipe 23, and the accumulator 24. It is assumed that the water is fed to the water pipe 7 connected to the outside of the water.
[0028]
Next, the operation and action of this figure will be described below.
[0029]
If the wind blows, a wave is generated, and the wave 25 hits the float 9, the float 9 swings back and forth, right and left, or up and down, and this movement is transmitted to the cylinder 10. The piston 12 provided in the cylinder 10 and the hollow piston tube 14 are supported in such a manner that they can tilt from the bottom of the water and are constrained in the vertical direction. Occurs. Accordingly, the volume of the cylinder chamber 11 in the cylinder 10 changes, and the water therein causes suction and discharge action each time.
[0030]
If a peak of the wave 25 comes and raises the float 9, the cylinder 10 connected to the float 9 via a universal joint is lifted upward. Therefore, the volume in the cylinder 10 increases, and in order to cover this, a suction action is caused inside the cylinder 10.
[0031]
In order to respond to this operation, the stagnant water stagnating at the bottom 3 passes through the intake pipe 4 from the intake port 2 and enters the accumulator 19. Next, it enters the header pipe 18 from the accumulator 19 and enters the communication pipe 13 through the water intake check valve 17 and the valve 16 provided in the pipe 15 divided into several parts. At this time, since the water check valve 21 described later works in the closing direction, there is no inflow of water from this valve.
[0032]
Water that has entered the header pipe 13 from each of the pipes 15 divided into several parts enters the cylinder 10 through the hollow piston pipe 14.
[0033]
At this time, the accumulator 19 has a function of converting the pulsating flow of the fluid flow into a smooth flow. Therefore, in the flow path from the water intake 2 to the accumulator 19, the flow is smoothed to some extent. Actually, the accumulator 19 at this time may be called a vacuum tank because of the vacuum action.
[0034]
Next, if the valley of the wave 25 comes and the float 9 is lowered, the cylinder 10 is lowered. Therefore, the water in the cylinder chamber 11 in the cylinder 10 is compressed by the action of the piston 12.
[0035]
The compressed water passes through the hollow piston pipe 14 and is pumped to the communication pipe 13. Next, each pipe 20 subdivided into the communication pipes 13 is sent to the header pipe 23 through the water check valve 21 and the valve 22 provided in each pipe 20. The accumulator 24 is passed from the header pipe 23, where the pulsating flow is converted into a smooth flow and sent to the water feed pipe 7 and discharged from this end.
[0036]
Since the wave pump 1A is a piston type, the flow of water in the apparatus is a pulsating flow. In the pulsating flow, the resistance of the inertial force of the water flow is large, and the device does not operate efficiently if this is left as it is. Therefore, if an accumulator 19 is provided in the middle of the intake pipe and an accumulator 24 is provided in the middle of the water supply pipe to convert the pulsating flow of as much water as possible into a smooth flow as efficiently as possible, Water supply efficiency can be significantly increased.
[0037]
The following description will be given with reference to FIG.
[0038]
FIG. 2 is a schematic explanatory view showing the operation in the fluctuation phenomenon when the wave power pump 1A of the present invention is shaken back and forth and left and right by a wave.
The configuration and operation of this figure will be described below.
However, in the description of FIG. 1, the structure of the mechanism on the flow sheet of the wave power pump 1A of the present invention, the operation in the up and down motion of the wave, and the outline of the action have been described, so the description will not be repeated. .
[0039]
First, the configuration of FIG. 2 will be described below.
The float 9 of the wave power pump 1A of the present invention is floated on the water surface S. Although details will be described later, the cylinder 10 is suspended through a universal joint 29 below a substantially central portion of the float 9. Even when the float 9 cannot move in the vertical direction, depending on the fluctuation phenomenon, the float 9 can freely move horizontally such as 9, 9 ', 9 ", etc. in the horizontal direction.
[0040]
On the other hand, it is assumed that the base block 26 of the wave power pump 1A of the present invention is installed in the water bottom 3 and the above-described communication pipe 13 is fixed thereto. A flexible telescopic tube 27 is provided above the communication tube 13 and connected through a flange or the like as shown in the figure. The intersection point on the center line of the curved portion of the flexible telescopic tube 27, in other words, the center point of the universal joint is defined as point A. Next, a piston 12 is provided inside the cylinder 10, and the flexible telescopic tube 27 is connected to the cylinder 10 via a hollow piston tube 14.
[0041]
When the float 9 moves to the respective positions 9, 9 ′, 9 ″ in the horizontal direction due to the fluctuation phenomenon, the movement position of the piston 12 is set to 12, 12 ′, 12 ″. The center point moving positions are designated as B, B ′, B ″. Further, the center point moving positions of the cylinder 10 provided substantially below the center of the float 9 and the universal joint of the connecting portion are represented by C, C ′, C ″.
[0042]
As a matter of course, the cylinder 10 is 10, 10 ', 10 ", the cylinder chamber 11 is 11, 11', 11", and the hollow piston tube 14 is 14, 14 ', 14 ".
[0043]
A detailed description of the structure of the mechanism will be given later. If the length of AB is constant, when the float 9 moves as 9, 9 ', 9 ", the center of the top of the piston 12 will be described. The movement of the point draws a circular arc around the point A like B, B ′, B ″.
[0044]
On the other hand, since the apparatus of the present invention is a natural energy utilization apparatus, it may not always be the case. In general, the float 9 moves horizontally like 9, 9 ', 9 "due to the fluctuation phenomenon. Therefore, the point C moves like C, C ′, C ″ in the horizontal direction in the same manner as the movement of the float 9.
[0045]
Here, when looking closely at the distances BC, B′C ′, B ″ C ”between the two points in FIG. 2, the distances between the two points always change. This change in distance serves as a relative reciprocation between the piston 12 and the cylinder 10. Accordingly, the volume of the cylinder chamber 11 in the cylinder 10 changes each time, thereby causing water suction and discharge. The subsequent description is almost the same as the description in the case of FIG. 1 described above, in which the volume of the cylinder chamber 11 in the cylinder 10 changes due to the vertical movement of the wave, and the suction and discharge action occurs in the water. Therefore, the description will not be repeated.
[0046]
The next description will be given with reference to FIGS.
[0047]
FIG. 3 is a longitudinal sectional view of the wave power pump 1A according to the present invention, and FIG. 4 is a plan view taken along the line ZZ in FIG.
In the description of FIG. 3 and FIG. 4, unlike the description of the flow sheet of FIG. 1 described above, since it is a drawing close to the design drawing when actually commercialized, the flow sheet connection, configuration, action, etc. Although there are places where it is difficult to judge, in that case, please re-read the above-described FIGS.
[0048]
The wave power pump 1A shown in FIG. 3 and FIG. 4 is based on the bottom 3 in the harbor where the apparatus described in FIG. 1 and FIG. It is installed via the block 26a. Therefore, the description of what has been described in the description of FIGS. 1 and 2 will not be repeated.
[0049]
The wave power pump 1A includes a hollow piston tube 14a extending upright toward the water surface S, a piston portion 12A formed on the outer periphery of the upper portion of the hollow piston tube 14a, and a cylinder defining a cylinder chamber 11a above the piston portion 12A. 10a, float 9a provided on the upper part of the cylinder 10a, accumulators 19 and 24, a check valve 17 on the intake pipe side, a check valve 21 on the water supply side, and a hollow piston pipe 14 are tilted. The universal joint 28A, the flexible telescopic tube 27a, and the universal joint 29A for freely connecting the float 9a and the cylinder 10a.
[0050]
The hollow piston tube 14a is a piston rod-shaped tube, and a water passage that connects the cylinder chamber 11 and a communication tube 13 described later is formed inside. The hollow piston tube 14a is supported by a saddle 30a firmly fixed to the base block 26a so that the lower portion of the hollow piston tube 14a can be tilted via a universal joint 28A (universal mechanism). A specific description of the universal mechanism will be given later.
[0051]
The piston portion 12A is formed so as to expand the upper outer periphery of the hollow piston tube 14a and the length in the vertical direction is as long as the diameter, so that the piston portion 12A can smoothly reciprocate within the cylinder 10a. Yes. The piston portion 12A includes an upper piston portion 31a and a lower piston portion 32a that are divided in the vertical direction, and a floating body 33a provided at an intermediate portion between the upper piston portion 31a and the lower piston portion 32a. The hollow piston tube 14a is erected almost vertically.
[0052]
The cylinder 10a has a shape in which a ceiling portion is formed and closed at the upper end of an upright cylinder, and is fitted to the outer periphery of the piston portion 12A so as to be slidable up and down. Above the ceiling of the cylinder 10a, a universal joint 29A for freely connecting the cylinder 10a to the float 9a is provided. A specific description thereof will be given later.
[0053]
A ring-shaped stopper 34a is provided at the lower end of the cylinder 10a. The inner diameter of the stopper 34a is formed to be slightly smaller than the outer diameter of the piston portion 12A. Even if the float 9a shakes unexpectedly, the stopper 34a hits the piston portion 12A and the cylinder from the piston portion 12A. 10a cannot be removed.
[0054]
In addition, a weight 35a is provided on the outer periphery of the lower portion of the cylinder 10a so that the cylinder 10a is always erected almost vertically.
[0055]
Next, the operation will be described.
[0056]
When the water surface S rises due to the waves, the float 9a floating on the water surface S also rises as the water surface S rises. At this time, the cylinder 10a also rises at the same time, and the volume of the cylinder chamber 11a defined in the cylinder 10a increases. And the inside of the cylinder chamber 11a is expanded, and a suction action occurs. For this reason, the water pressure in the cylinder chamber 11a is lowered, and the intake check valve 17 is opened from the water passage in the hollow piston pipe 14a through the communication pipe 13 and passes through the accumulator 19 and the intake pipe 4a and is shown in FIG. Water flows into the cylinder chamber 11a from the water intake port 2. At this time, the water check valve 21 remains closed, and water does not flow back into the hollow piston pipe 14a from the water pipe 7a side.
[0057]
And when a wave pulls and the water surface S falls, the float 9a which has floated on the water surface S descends with the descent of the water surface S. At this time, the cylinder 10a is also lowered simultaneously, and a force in the compression direction acts on the water in the cylinder chamber 11a to close the water intake check valve 17. Then, the water in the cylinder chamber 11a is pushed into the hollow piston pipe 14a, and the water in the hollow piston pipe 14a, that is, the water in the water channel, passes through the flexible telescopic pipe 27a and the communication pipe 13, and is a check valve for water supply. 21 is opened, it passes through the pipe | tube 20 and the accumulator 24, and water will be sent from the water pipe 7a to the destination for water supply. At this time, the water intake check valve 17 remains closed, and the water taken in the cylinder chamber 11a through the water intake pipe 4a does not flow out to the outside.
[0058]
However, the above description is a description of the basic operation and action, and an accumulator or the like is provided in the middle of the intake pipes 4 and 4a and the water supply pipes 7 and 7a, etc. In the case of efficiently taking in water and feeding water by effectively using the inertia force of the fluid in the water pipes 7 and 7a, the flow may not match the above-described action. For example, although the wave power pump 1A has stopped operating, the water in the water intake pipe and the water supply pipe may advance together, or only the water intake pipe side or the water supply pipe side may advance. On the other hand, the flow of water in the intake pipe and the water supply pipe may not proceed even though the wave pump is operating. These are due to the effect of the accumulator and the action of inertia.
[0059]
Next, although not explained in the explanation part of FIG. 3 and FIG. 4, the device described in this figure also naturally has a fluctuation phenomenon (the explanation of FIG. 2). The description after the relative reciprocation of the cylinder is substantially the same as the above description, and the description will not be repeated.
[0060]
Further, the piston portion 12A is composed of an upper piston portion 31a, a lower piston portion 32a, and a floating body 33a, and the lower end of the hollow piston pipe 14a extending below the piston portion 12A can be swayed via a universal joint 28A (universal mechanism). Therefore, the hollow piston tube 14a can be erected almost vertically, and the piston portion 12A can be smoothly moved in the cylinder 10a in order to make the length of the piston portion 12A in the vertical direction as long as the diameter. Relative reciprocal motion can be achieved.
[0061]
Since a water channel is formed inside the hollow piston pipe 14a, and the water in the cylinder chamber 11a is moved in and out of the water channel, the water in the cylinder chamber 11a is moved by the vertical and horizontal movements of the float 9a. Even if the pressure is positive or negative, that is, even if the discharge and the suction action are repeated, not all the forces of the discharge, the action of the suction and the reaction are directly applied to the hollow piston tube 14a to support it. Since it is converted into energy for taking water and sending water through the water in the communication pipe 13 by acting on the pressure phenomenon of water, the durability of the hollow piston pipe 14a can be remarkably increased.
Next, another embodiment will be described with reference to the accompanying drawings.
[0062]
FIG. 5 is a plan view of the universal joint 28 for supporting and tilting the hollow piston pipe 14 in the wave pump of the present invention, and FIG. 6 is a longitudinal sectional view taken along the line YY in FIG.
The configuration of the universal joint 28 (universal mechanism) shown in FIGS. 5 and 6 will be described below.
[0063]
Specifically, the universal joint 28 (universal mechanism) supports the inner shaft 40 so as to cross each other in the shape of a cross in a plan view on the radially inner side and the outer side of the ring surrounding the outer periphery of the hollow piston tube 14 in an annular shape. Then, the outer shaft 41 is protruded to form the ring body 42. An outer shaft 40 that is rotatable on a bearing 43 provided radially inward of the ring body 42 is fixed to and supported by the lower outer periphery of the hollow piston tube 14, and the outer shaft protrudes radially outward of the ring body 42. 41 is a universal joint that is rotatably supported by left and right saddles 30 in the drawing.
[0064]
The saddles 30 are a pair of support legs that are fixed to the base block 26 so as to sandwich the radially outer side of the ring body 42, and the outer shaft 41 of the ring body 42 is rotated around the upper part of each saddle 30. Shaft holes 44 for movably supporting are formed so as to face each other.
[0065]
In FIG. 5, a point A that is the center of the ring body 42 and the hollow piston tube 14 and intersects the outer shaft 41 of the ring body 42 and the inner shaft 40 of the ring body 42. In FIG. 6, the point A is the point where the center of the outer shaft 41 of the ring body 42 and the center of the inner shaft 40 of the ring body 42 coincide. That is, this point A also coincides with the point A in the description of FIG.
[0066]
Next, the operation will be described.
[0067]
In the universal joint 28 (universal mechanism), two shafts are arranged so as to cross in a cross shape in plan view, and each of the shafts can be rotated, so that the hollow piston tube 14 is 360 ° with the point A as a fulcrum. Tilt in any direction. However, it cannot be moved up and down.
[0068]
The next description will be given with reference to FIGS.
[0069]
FIG. 7 is a detailed plan view of the float 9 and the universal joint portion 29 of the cylinder 10 in the wave power pump 1A of the present invention, and FIG. 8 is a longitudinal sectional view taken along line XX in FIG.
The configuration of the universal joint 29 (universal mechanism) shown in FIGS. 7 and 8 will be described below.
[0070]
Specifically, the universal joint 29 (universal mechanism) crosses in the shape of a cross in plan view on the radially inner side and the outer side of the ring body 53 that annularly surrounds the outer periphery of the hanging object 50 provided at the upper end of the cylinder 10. Thus, the inner shaft 51 and the outer shaft 52 are protruded to form a ring body 53, and the inner shaft 51 penetrating inward in the radial direction of the ring body 53 is opposed to the inside of the ring body 53. It is a universal joint that is rotatably supported and has an outer shaft 52 protruding radially outward of the ring body 53 supported by a bearing 57 provided on each saddle 55 so as to be rotatable.
[0071]
The saddles 55 are a pair of support legs fixed with bolts or the like to a ring ring 56 provided on the float 9 so as to sandwich the radially outer side of the ring body 53. Shaft holes 58 of a bearing 57 for rotatably supporting the shaft 52 are formed so as to face each other.
[0072]
A spacer 59 for passing the inner shaft 51 penetrating the ring body 53 is firmly fixed to the hanging object 50 by welding or the like inside the hanging object 50. As a means for preventing the penetrating inner shaft 51 from falling off the bearing 54, the pin 60 is passed through the spacer 59 and the through hole 61 provided in the substantially central portion of the inner shaft 51, and the lower end thereof is at the lower end of the spacer 59. Screwed into a nut 62 or the like fixed by welding or the like. Assume that means such as a spring washer is also provided as means for preventing loosening of the tightening portion of the screw that occurs when the device is shaken.
[0073]
A thrust plate 63 is provided near the lower end of the hanger 50. On the other hand, a suspension pipe 65 provided with a thrust plate 64 which is substantially concentric with the suspension member 50 and faces the above-described thrust plate 63 near the lower end thereof is provided so as to be substantially vertically rotatable. Is fixed to the ceiling of the cylinder 10 described above. Between the thrust plates 63 and 64 facing each other, a ring-shaped liner made of resin, plastic, metal or the like is also provided as a friction reducing mechanism. Accordingly, it is assumed that the float 9 and the cylinder 10 are rotatable in this portion.
[0074]
In the middle of the suspension pipe 65, a ring-shaped saddle plate 66 is fixed to the suspension pipe 65, and the upper surface of the saddle plate and the lower end of the above-described suspension hardware 50 are interposed between them in order to be rotatable. It is assumed that a ring-like liner made of resin, plastic, metal plate or the like is also provided as a friction reducing mechanism.
[0075]
A vent nozzle 67 and a check valve 68 are provided inside the suspension pipe 65 and on the upper surface of the ceiling of the cylinder 10. It is preferable that the vent nozzle 67 and the check valve 68 have a small diameter as much as possible. However, if this is not possible, a restriction orifice or the like may be provided to reduce the hole.
[0076]
Next, the operation will be described.
[0077]
The universal joint 29 (universal mechanism) allows the float 9 and the cylinder 10 to freely move by causing the inner shaft 51 and the outer shaft 52 provided in the ring body 53 intersecting in a cross shape in plan view to cause a rotating action. Can be transformed into an angle. Further, when this angular deformation is about to exceed the design limit, the operation can be limited by the action of the stopper 69.
[0078]
Next, since the hanging object 50 and the hanging pipe 65 are rotatable as described above, the float 9 and the cylinder 10 can easily cause a rotating action at any time. With these functions and effects, wave energy that is irregular and has a large fluctuation range can be efficiently and effectively utilized as a pumping action.
Next, another embodiment will be described with reference to the accompanying drawings.
[0079]
FIG. 9 is a side sectional view of a wave pump showing another embodiment of the present invention.
As shown in FIG. 9, the wave power pump 1 </ b> B is installed through a base block 26 b in a harbor that is on the ocean or in a closed water area. This wave power pump 1B is a device having substantially the same principle, configuration, and action as the wave power pump 1A that has been described in detail so far. Only the part to be described is described.
[0080]
The wave power pump 1B includes a hollow piston pipe 14b extending upright toward the water surface S, a piston part 12B formed on the outer periphery of the upper part of the hollow piston pipe 14b, and a cylinder defining a cylinder chamber 11b above the piston part 12B. 10b, a float 9b provided at an upper portion of the cylinder 10b so as to be capable of changing an angle and being rotatable, a water intake pipe 4b for introducing upper layer water to the cylinder chamber 11b, and a water supply pipe 7b for supplying the upper layer water.
[0081]
The hollow piston tube 14b is a piston rod-shaped tube, and a water passage is formed inside the cylinder chamber 11b and a water supply tube 7b described later. The hollow piston tube 14b is supported by a saddle 30b firmly fixed to the base block 26b so that the lower portion of the hollow piston tube 14b can be tilted via a universal joint 28B (universal mechanism).
[0082]
The lower part of the hollow piston pipe 14b is connected to a water supply pipe 7b provided along the water bottom 3 through a flexible telescopic pipe 27b that can be bent and a communication pipe 13b. A water supply check valve 21b is connected to the water supply pipe 7b, and the water in the cylinder chamber 11b flows only in the direction of flowing out of the hollow piston pipe 14b.
[0083]
The intake pipe 4b is connected so as to extend radially from the upper portion of the cylinder chamber 11b, is bent downward immediately from the flange portion, extends downward along the cylinder 10b, and has an upper layer water at its extended end. The water intake 2b for taking in is formed facing downward.
[0084]
The intake port 2b is provided with a suction strainer 2bs and a intake check valve 17b. The suction strainer 2bs is for rectifying the water intake and preventing foreign matter and the like from entering the water intake pipe 4b, and is provided integrally with the water intake port 2b. The intake check valve 17b is for flowing water only in the direction of flowing into the cylinder chamber 11b, and is provided on the downstream side of the suction strainer 2bs.
[0085]
Next, the operation will be described.
[0086]
When the water surface S rises due to the wave 25, the float 9b floating on the water surface S also rises as the water surface S rises. At this time, the cylinder 10b also rises at the same time, and the volume of the cylinder chamber 11b defined in the cylinder 10b increases. And the inside of the cylinder chamber 11b is expanded, and a vacuum action arises. For this reason, the water pressure in the cylinder chamber 11b is lowered, the intake check valve 17b is opened, and water flows into the cylinder chamber 11b through the suction strainer 2bs and the intake pipe 4b. At this time, the water check valve 21b remains closed, and water does not flow back into the hollow piston pipe 14b from the water pipe 7b side.
[0087]
And when a wave pulls and the water surface S descends, the float 9b floating on the water surface S descends as the water surface S descends. At this time, the cylinder 10b also descends simultaneously, a force in the compression direction acts on the water in the cylinder chamber 11b, and the intake check valve 17b closes. Then, water in the cylinder chamber 11b is pushed into the hollow piston pipe 14b, and water in the hollow piston pipe 14b is pushed into the communication pipe 13b. For this reason, the water pressure in the communication pipe 13b increases, the water check valve 21b opens, the water in the water pipe 7b is discharged from the discharge nozzle 72b, and an artificial upwelling flow is generated at the bottom of the water, or The water will be sent to the destination. At this time, the intake check valve 17b remains closed, and water in the cylinder chamber 11b does not flow out of the intake pipe 4b.
[0088]
However, as described above, an accumulator or the like is provided downstream of the water supply check valve 21b connected to the communication pipe 13b and the water supply pipe 7b, and water is supplied by effectively using the inertial force of the fluid in the water supply pipe 7b. In some cases, the above-described operation may not be consistent, but this operation is basically performed.
[0089]
Furthermore, other embodiments will be described with reference to the accompanying drawings.
[0090]
FIG. 10 is a side sectional view of a wave pump showing another embodiment of the present invention.
As shown in FIG. 10, the wave power pump 1 </ b> C pumps the bottom layer water near the water bottom and mixes it with the upper layer water near the water surface S, and has a hollow piston pipe 14 c extending upright toward the water surface S, and a hollow A piston portion 12C formed on the outer periphery of the upper portion of the piston pipe 14c, a cylinder 10c that defines a cylinder chamber 11c above the piston portion 12C, and a float that is provided above the cylinder 10c via a universal joint 29C (universal mechanism) 9c and a drain pipe 70c for flowing bottom water in the cylinder chamber 11c to the vicinity of the water surface S.
[0091]
The hollow piston pipe 14c is a piston rod-shaped pipe, and a water passage that connects the cylinder chamber 11c and a water intake pipe 4c described later is formed inside. The hollow piston tube 14c is supported by a saddle 30c firmly fixed to the base block 26c through a universal joint 28C (universal mechanism) so that the hollow piston tube 14c can be tilted. A communication pipe 13c connected to a water intake pipe 4c provided along with the flexible telescopic pipe 27c is connected.
[0092]
A water intake port 2c is provided at the tip of the water intake tube 4c, and a water intake check valve 17c is provided on the downstream side of the water intake port 2c or the water intake tube 4c to flow water only in the direction of flowing into the hollow piston tube 14c. ing. The suction strainer 2cs is a net placed on the upper part of the water intake port 2c, which rectifies the water intake and prevents foreign matter from entering the water intake pipe 4c, and is provided integrally at the end of the water intake pipe 4c. ing.
[0093]
The drain pipe 70c is a pipe that extends in the horizontal direction from the vicinity of the ceiling of the cylinder 10c and extends radially. A drain outlet 71c for discharging water is formed at the extended end of the drain pipe 70c in a horizontal direction, and the drain outlet 71c is located slightly below the water surface S. In addition, a countermeasure such as a strainer is provided to prevent foreign matter from entering the drain port 71c.
[0094]
In the vicinity of the drain port 71c provided at the end of the drain pipe 70c, a drain check valve 21c that flows water only in the direction of flowing out from the cylinder chamber 11c of the cylinder 10c is provided. It does not flow back into the cylinder chamber 11c.
[0095]
Next, the operation will be described.
[0096]
When the water surface S rises due to the wave 25, the float 9c and the cylinder 10c rise, the inside of the cylinder chamber 11c is expanded, and a vacuum action occurs. For this reason, the water pressure in the cylinder chamber 11c decreases, the intake check valve 17c opens, and the bottom water flows into the hollow piston tube 14c and the cylinder chamber 11c through the suction strainer 2c and the intake tube 4c. At this time, the drainage check valve 21c remains closed, and the upper layer water does not flow back into the cylinder 11c from the drainage pipe 70c side.
[0097]
When the wave 25 passes and the water surface S descends, the float 9c and the cylinder 10c descend, and a force in the compression direction acts on the water in the cylinder chamber 11c to close the intake check valve 17c. Then, the water pressure in the cylinder chamber 11c is increased, the drain check valve 21c is opened, and the water in the drain pipe 70c is discharged near the water surface S. At this time, since the drain port 71c is located below the water surface S, there is little loss due to the head difference, and the hollow piston tube 14c does not move in the vertical direction, so that water can be supplied stably. . At this time, the water intake check valve 17c remains closed, and water in the cylinder chamber 11c does not flow out of the water intake pipe 4c.
[0098]
However, like the wave pump 1A shown in FIG. 1, an accumulator or the like is provided upstream of the intake check valve 17c provided in the intake pipe 4c to effectively use the inertial force of the fluid in the intake pipe 4c. However, when water is supplied, there is a case where it does not coincide with the above-described action, but this operation is basically performed.
[0099]
As described above, the hollow piston pipe 14c whose lower part communicates with the intake pipe 4c connected to the intake check valve 17c provided near the bottom of the water via the communication pipe 13c and whose upper part extends upright toward the water surface S. A piston portion 12C is formed on the outer periphery of the upper portion of the hollow piston tube 14c, and a cylinder 10c that partitions the cylinder chamber 11c is fitted on the outer periphery of the piston portion 12C so as to be slidable up and down. The cylinder 10c is provided with a float 9c and a universal joint 29C (universal mechanism) for vertically moving the cylinder 10c back and forth, right and left, and the bottom water in the cylinder chamber 11c is discharged to the cylinder 10c via a drainage check valve 21c. Since the wave pump 1C is configured by connecting the drain pipe 70c flowing to the upper layer water, the bottom layer water can be pumped up to the vicinity of the water surface S easily and efficiently with a simple structure.
[0100]
Further, since the drain outlet 71c is positioned below the water surface S, there is little loss due to the head difference, and a large amount of bottom layer water can be efficiently and stably mixed with the upper layer water.
[0101]
【The invention's effect】
In short, according to the present invention, the following excellent effects can be obtained.
[0102]
(1) According to the first aspect of the present invention, water near the bottom of the water can be efficiently supplied to aquaculture farms or destinations for water supply by effectively utilizing the fluctuation phenomenon due to waves and the vertical kinetic energy of the waves. Can do.
[0103]
(2) According to the invention described in claim 2, water in the vicinity of the water surface is efficiently supplied to a destination for water supply with a simple structure by effectively utilizing the fluctuation phenomenon caused by waves and the vertical kinetic energy of the waves. can do.
[0104]
(3) According to the invention described in claim 3, by effectively utilizing the fluctuation phenomenon caused by the waves and the vertical kinetic energy of the waves, the water near the bottom of the water is pumped up to the water surface easily and efficiently with a simple structure. Can circulate water up and down.
[Brief description of the drawings]
FIG. 1 is a flow sheet showing the configuration and flow of an apparatus of a wave power pump 1A according to a preferred embodiment of the present invention.
FIG. 2 is a schematic explanatory view showing an operation in a fluctuation phenomenon when a wave power pump 1A showing a preferred embodiment of the present invention is shaken back and forth and left and right by a wave.
FIG. 3 is a longitudinal sectional view of a wave power pump 1A showing a preferred embodiment of the present invention.
4 is a plan view of the ZZ line arrow portion of FIG. 3;
FIG. 5 is a plan view of a universal joint 28 for supporting and tilting the hollow piston pipe 14 in the wave power pump of the present invention.
6 is a longitudinal sectional view taken along the line YY in FIG.
FIG. 7 is a plan view of the universal joint 29 of the float 9 and the cylinder 10 in the wave power pump 1A of the present invention.
8 is a longitudinal sectional view taken along the line XX in FIG.
FIG. 9 is a side cross-sectional view of a wave power pump showing another embodiment of the present invention.
FIG. 10 is a side sectional view of a wave power pump showing another embodiment of the present invention.
FIG. 11 is a side sectional view of a conventional wave power pump.
[Explanation of symbols]
1A wave power pump
1B wave power pump
1C wave power pump
S water surface
2, 2a, 2b, 2c Water intake
2bs, 2cs suction strainer
3 Water bottom
4, 4a, 4b, 4c Intake pipe
5 Shore
6 Crowd
7, 7a, 7b, 7c Water pipe
8 Underwater
9, 9a, 9b, 9c Float
10, 10a, 10b, 10c cylinder
11, 11a, 11b, 11c Cylinder chamber
12, 12A, 12B, 12C Piston
13, 13a, 13b, 13c Communication pipe
14, 14a, 14b, 14c Hollow piston tube
15 tubes
16 valves
17, 17a, 17b, 17c Check valve for water intake
18 Header tube
19 Accumulator
20 tubes
21, 21a, 21b, 21c Check valve for water supply
22 Valve
23 Header tube
24 Accumulator
25 waves
26, 26a, 26b, 26c Base block
27, 27a, 27b, 27c Flexible telescopic tube
28, 28A, 28B, 28C Universal joint
29, 29A, 29B, 29C Universal joint
30, 30a, 30b, 30c saddle
31a Upper piston part
32a Lower piston part
33a Floating body
34a Stopper
35a weight
40 inner shaft
41 outer shaft
42 Ring body
43 Bearing
44 Shaft hole
50 Hanging hardware
51 inner shaft
52 Outer shaft
53 Ring body
54 Bearing
55 saddle
56 ring ring
57 Bearing
58 Shaft hole
59 Spacer
60 pins
61 Through hole
62 Nut
63 Thrust board
64 Thrust board
65 Hanging pipe
66 saddle board
67 Vent nozzle
68 Check valve
69 Stopper
70c Drain pipe
71c Drain port
72b Discharge nozzle
90 wave power pump
91 cylinders
92 piston
93 chain
94 Float
95 Intake pipe
96 Ring tube of joint ring

Claims (3)

A lower piston communicates with a pipe provided in water, and a hollow piston pipe extending upright and standing up toward the water surface is provided to be tiltable via a universal joint, and a piston portion is formed on an upper outer periphery of the hollow piston pipe. A cylinder that defines a cylinder chamber is fitted on the outer periphery of the piston portion so as to be slidable up and down, and a float for moving the cylinder up and down is provided on the cylinder. In the wave pump that is connected through and operates with wave energy,
A saddle consisting of a pair of support legs is provided at substantially the center of the float, and a ring body is provided in the pair of support legs via an outer shaft so as to be rotatable around a horizontal axis on the outside. An inner shaft is provided on the inner periphery at a position orthogonal to the outer shaft, and a suspension provided through a suspension pipe at the upper end of the cylinder is inserted into the ring body, and the protrusion protruded from the outer periphery of the suspension A suspension pipe provided at the upper end of the cylinder and the upper end of the cylinder at a universal joint that allows the shaft to be inserted into the bearing portion of the inner shaft and rotatably supported to change the angle between the float and the cylinder. Are fitted, are concentric with the axis of the cylinder, are rotatably provided, and the float and the cylinder are provided to change the angle and rotate freely. A lower piston communicates with a pipe provided in water, and a hollow piston pipe extending upright and standing up toward the water surface is provided to be tiltable via a universal joint, and a piston portion is formed on an upper outer periphery of the hollow piston pipe. A cylinder that defines a cylinder chamber is fitted on the outer periphery of the piston portion so as to be slidable up and down, and a float for moving the cylinder up and down is provided on the cylinder. In the wave power pump that is connected to the cylinder and is provided with a water intake port for taking water in the upper part of the cylinder, operates with wave energy, and supplies water near the water surface.
A saddle consisting of a pair of support legs is provided at substantially the center of the float, and a ring body is provided in the pair of support legs via an outer shaft so as to be rotatable around a horizontal axis on the outside. An inner shaft is provided on the inner periphery at a position orthogonal to the outer shaft, and a suspension provided through a suspension pipe at the upper end of the cylinder is inserted into the ring body, and the protrusion protruded from the outer periphery of the suspension A suspension pipe provided at the upper end of the cylinder and the upper end of the cylinder at a universal joint that allows the shaft to be inserted into the bearing portion of the inner shaft and rotatably supported to change the angle between the float and the cylinder. Is fitted, is concentric with the axis of the cylinder, is provided rotatably, and the float and the cylinder are provided with a change in angle and a universal joint portion provided rotatably.
An intake port and a check valve for water intake are provided at the top of the cylinder, and the float is shaken by the shaking of the wave, and the check valve for water intake opens when the cylinder chamber of the cylinder expands and closes when the cylinder contracts. Wave power pump characterized by. A lower piston communicates with a pipe provided in water, and a hollow piston pipe extending upright and standing up toward the water surface is provided to be tiltable via a universal joint, and a piston portion is formed on an upper outer periphery of the hollow piston pipe. A cylinder that defines a cylinder chamber is fitted on the outer periphery of the piston portion so as to be slidable up and down, and a float for moving the cylinder up and down is provided on the cylinder. In the wave pump that is connected to the cylinder and has a drain outlet for draining water at the top of the cylinder, operates with wave energy, pumps low-rise water near the bottom of the water, and sends it to the vicinity of the water surface.
A saddle consisting of a pair of support legs is provided at substantially the center of the float, and a ring body is provided in the pair of support legs via an outer shaft so as to be rotatable around a horizontal axis on the outside. An inner shaft is provided on the inner periphery at a position orthogonal to the outer shaft, and a suspension provided through a suspension pipe at the upper end of the cylinder is inserted into the ring body, and the protrusion protruded from the outer periphery of the suspension A suspension pipe provided at the upper end of the cylinder and the upper end of the cylinder at a universal joint that allows the shaft to be inserted into the bearing portion of the inner shaft and rotatably supported to change the angle between the float and the cylinder. Is fitted, is concentric with the axis of the cylinder, is provided rotatably, and the float and the cylinder are provided with a change in angle and a universal joint portion provided rotatably.
A drain port for draining water at the top of the cylinder and a check valve for drainage, the float is shaken by the shaking of the wave, the drain check valve closes when the cylinder chamber of the cylinder expands, A wave power pump that opens when contracted.

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