JP2010116886A - Circulating type hydraulic power generation device having shock absorption structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circulating type power generation system for pumping and reusing water resources without using motive power of a storage pump, in a hydraulic power generation device. <P>SOLUTION: This structure has respectively two sets of lifting baskets connected by a roper such as a shock absorbing structure and a wire to a hoistway and capable of storing/draining water. The shock absorbing structure is constituted of a movable partition wall separate from the hoistway, an opening-closing port capable of controlling opening-closing on its inside, a plurality of conduits connected to a water storage tank, a valve and a check valve for controlling opening-closing of the individual conduits. Impact force when freely falling when vertically moved by timely controlling water supply-draining to the lifting baskets. is converted into pressure for pumping a lifting basket storage corresponding quantity under the movable partition wall to a position on the check valve with every falling cycle, and the water can be pumped to the water storage tank by acting like the storage pump without requiring the other motive power. Thus, power generation output can be provided from a power generation turbine connected to a shaft of a pulley of the rope of continuing the vertical movement. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hydroelectric generator that uses natural energy.

  The power generation means is roughly classified into a power generation device using fossil fuels such as thermal power and nuclear power, and a hydropower generation represented by a dam and a power generation device using natural energy such as wind power and sunlight.

  Both thermal power and nuclear power generation equipment generate steam by generating heat and rotate the turbine to obtain electric power. The former burns fossil fuels such as oil / coal and the latter uses heat generated by the fission reaction. Its power output is large and accounts for the majority of electricity demand.

A hydroelectric power generator represented by a dam uses a potential energy when a medium water resource falls downward from above to convert it into a rotational motion with a propeller provided in the conduit and obtain power by turning the turbine. Yes.
Free encyclopedia "Wikipedia" Hydropower Free encyclopedia "Wikipedia" Shock absorber

  Power generation devices that use natural energy, such as water resources, are well-known as power generation means that are friendly to the global environment. There is no power source.

  The present invention relates to a hydroelectric power generation apparatus that circulates and reuses water resources used for power generation without input of new energy to obtain inexpensive and stable power.

  In a structure having a lifting rod that moves up and down in the hoistway, the pulley on the rope extension that connects the two sets of the lifting rod that repeats the vertical movement is rotating forward and backward, and communicated with the shaft of the pulley Electric power can be obtained with the power generation turbine. Although it is structured to be able to contain / drain water in order to realize the function to move the lifting / lowering shaft up and down, it is not possible to obtain electric power by using power such as a pump to pump the drained water because it is a circulation type. .

  When the hoist is lowered, an impact force proportional to the mass and height of the hoist is generated, but it can be easily estimated that it will break in a few cycles without any control. Conversely, if the pressure is reduced to the pumping pressure, the pumping can be performed without applying power from the outside.

  In order to realize a stable vertical movement of the lifting / lowering rod, the lowering speed of the lifting / lowering rod must be gradually reduced without greatly impairing the impact force during the lowering. In order to solve this problem, if the water stored in the hoisting rod is filled in the lower part of the hoistway and the flow rate is gradually restricted by the water conduit, the descending speed of the hoisting rod can be gradually reduced and stopped soon. At this time, the water outlet of the water guide pipe generates a pressure equivalent to the impact force according to the physical law of Pascal's principle, and can pump more than the water stored in the lift.

  In order to realize this function, a partition that separates the hoistway from the hoistway is made movable so that it can be lowered along with the descending hoist to reduce the impact on the movable partition, and a plurality of guides can be used to control the flow rate. A valve that can control the opening and closing of the water pipe and the individual water pipes is provided. By sequentially controlling the opening and closing of the water conduit as the movable partition is lowered, the water stored under the movable partition can be guided to the water conduit and pumped to the water storage tank. That is, it has a function of an impact absorbing structure.

  In order to accommodate the water accommodated in the lifting / lowering trough under the movable partition and prepare for the next descent cycle, the movable partition is provided with an opening / closing port capable of controlling opening and closing. Before and after reaching the lower limit of the hoistway, the opening / closing port is controlled to be “open” and accommodated under the movable partition wall.

  Since the movable partition remains in the lower limit position only by this, the movable partition is supported by a known shock absorber and support in order to push up the movable partition to a predetermined position. The shock absorber includes a pressure accumulation mechanism using a spring and a hydraulic pressure, and can accumulate the impact force when the lifting / lowering rod descends and return it to a predetermined position when the load is reduced.

  When water is accommodated in the other lifting rod located at the upper limit and the above-described control is performed, both the lifting rods can continue to move up and down. As described above, water resources can be pumped without using power such as a pump.

  The power consumed for the above-described control is only a control power supply voltage of a motor or the like that controls opening and closing of the control system and the opening and closing of the opening / closing port, and is far less than the power obtained from the positional energy at which the lifting / lowering rod moves up and down. As a result, electric power can be generated without inputting energy from the outside.

  Even power generation devices that use natural energy can circulate and reuse water resources, so that inexpensive and stable power that is not affected by weather conditions can be obtained.

Since there is no need to burn fossil fuels such as oil / coal, it can generate electricity at low cost and emit no carbon dioxide, which is a factor in global warming.

  For the purpose of reusing water resources and generating electricity again, two sets of hoistway, shock absorbing structure and hoisting rod are provided, and the hoisting rod is connected with a rope such as a wire, and the inside of the hoistway is alternated. Realized by timely control to move up and down. Electrical components such as motors for each control that may be splashed with water are housed in a known waterproof casing.

  In the first embodiment, the cross section of the hoistway and the elevating rod is a quadrangle, but may be a polygon such as a circle or a hexagon. Although the medium is a water resource, the medium is basically circulated so that it does not flow out of the apparatus. Therefore, it is possible to use other fluids such as muddy water whose particles are finely controlled.

  FIG. 1 shows a perspective view of a first embodiment of a hydroelectric generator according to the present invention. Larger than the figure, there are hoistway structures 10a and 10b, hoisting rods 20a and 20b, a water storage tank 90, and shock absorbing structures not shown in the lower part of the hoistway structures.

  In the hoistway structure, hoistways 11a and 11b and upper water distribution ports 12a and 12b are provided. When controlled to "open", water in the water storage tank is distributed to the hoistway.

  Pulley support structures 13a to 13c, pulleys 14a to 14c and a rope 16 such as a wire are provided at the upper part of the hoistway structure. One end of the rope is the upper part of the hoisting rod 20a and the other end is the upper part of the hoisting rod 20b. And the hoisting rod moves up and down in the hoistway. The pulley shaft 15 is mechanically coupled to the pulley and rotates forward and backward according to the vertical movement of the lifting / lowering rod.

  The perspective view of 1st embodiment of a raising / lowering rod is shown in FIG.3 and FIG.4. The drawing has an intake port 21 in the upper portion, a drainage port 30 in the lower portion, a lock device 40 for locking the lid of the drainage port, and a plurality of roller devices 50a to 50f.

  The intake opening / closing mechanism includes a motor 23 with a speed reducer, a pinion gear 25 communicating with the shaft of the motor, an intake cover 22 and an inner gear 24 mechanically coupled to the cover, and the rotation of the motor. Then, the inner gear rotates and the intake cover is opened and closed. The lid guide rod 26 has a shock absorber structure and limits the opening speed when the lid is opened.

  The drain opening / closing mechanism includes a motor 32a with a speed reducer, a pinion gear 33a in communication with the shaft of the motor, a drain lid 31a, an inner gear 34a mechanically coupled to the lid, and a drain lid 31b. The inner gear rotates around the rotation of the motor, and the drain cover is opened and closed. Stopper plates 36a and 36b limit the movement of the lid due to external pressure, and lid guide rods 37a and 37b have a shock absorber structure to limit the opening speed when the lid is opened without driving the motor. To do.

  The drain port lid locking device 40 includes a lock support 41, an electromagnetic solenoid 42, and a movable plate 43. When the electromagnetic solenoid is excited, the movable plate is inserted under the drain port lid. As a result, it is possible to maintain a state where the lid is closed even when the motor is not energized in a state where water is supplied to the lifting rod and a load is applied.

  FIG. 7 shows an assembly diagram of the roller device. The roller 51 is supported by a roller receiver 57 and is located on the inner wall side of the hoistway by leaf springs 56a and 56b, but can be moved by the long hole stroke of the bearing of the roller receiver. The lifting / lowering rod is attached to the framework of the lifting / lowering rod from the outside, and a plurality of the lifting / lowering rods are attached as necessary to reduce friction with the hoistway.

  The perspective view of 1st embodiment of a movable partition is shown in FIG.5 and FIG.6. A movable partition wall 61 separated from the hoistway, and an opening / closing port 62, an opening / closing mechanism for the opening / closing port, and known shock absorbers 18a to 18d and supports 17a to 17d are provided in the movable partition wall. Since the movable partition wall is tightly sealed with the inner wall of the hoistway by a seal 19 made of an elastic body such as rubber, water storage under the movable partition wall is easy in the hoistway when the opening / closing ports 61a and 61b are closed. Do not leak.

  Known shock absorbers include a spring and hydraulic pressure accumulating mechanism, but the braking force of the shock absorber is small compared to the impact force when the lifting rod descends, so the effect of slowing down the lifting rod is expected. Can not. Here, it accumulates the impact force when the lifting rod descends, and when the load is reduced, it plays the role of pushing up the movable partition to a predetermined position.

  The opening / closing mechanism of the opening / closing port of the movable partition includes a motor 64a with a speed reducer, a pinion gear 65a communicating with the shaft of the motor, an opening / closing port lid 63a, an arm 67a mechanically coupled to the lid, a ball screw 66a, and a ball screw table. 68a and the open / close lid 63b have the same configuration as 63a, and the ball screw table rotates around the rotation of the motor and the arm moves to open and close below the movable partition. The lid guide rod 69a and the unillustrated 69b have a shock absorber structure and limit the opening speed when the lid opens without driving the motor.

  The lock mechanism of the open / close lid has the same configuration as the lock device 40, and controls the electromagnetic solenoid to insert the movable plate under the open / close cover. Thereby, the state where the lid is closed can be maintained even when the motor is not energized while a load is applied to the movable partition wall.

The operation will be described with reference to the structure explanatory diagram of FIG.
The hoisting rods 20a and 20b are connected to the upper ends of the hoisting rods 20a and 20b, and the mass varies depending on the presence or absence of water inside the hoisting rods. The hoisting rod having a heavier mass descends in the hoistways 11a and 11b. From this, when the water storage and drainage are alternately repeated on the hoistway, the vertical movement is continued alternately in the hoistway.

  From FIG. 2, the elevating rod 20b contains water and pushes down the movable partition wall 61b and is positioned at the lower limit. Before the lifting / lowering rod reaches the movable partition, the plurality of electromagnetic valves 73k to 73t are all controlled to be “open”, and the opening / closing port on the movable partition and the intake / drain port of the lifting / lowering rod are controlled to be “closed”. . As a result, the water under the movable partition wall is led to a plurality of water conduits 70k to 70t and pumped to the water storage tank 90 with little initial restriction. At this time, since the movable partition wall initially descends at the same speed as that of the elevating rod, the impact of the drop on the movable partition wall is greatly reduced. Check valves 72k to 72t connected to the individual electromagnetic valves prevent backflow from the water tank.

  In the system according to the present invention, it is only necessary to pump up the equivalent storage capacity of the lifting rod to the water storage tank every cycle when the lifting rod descends, and the impact force of the descent is transmitted as pressure under the movable partition wall, Pumping power equivalent to impact force is obtained at the outlet.

  When the upper part of the movable partition wall is filled with the same amount of water as the medium, the elevating rod reaches the water first. Even if the impact force of the descent is sufficiently large, the movable partition starts to descend in advance, so that the impact applied to the lift and the movable partition can be mitigated. Further, since the deceleration stroke of the lifting / lowering rod is determined by the amount of water stored in the shock absorbing structure, the electromagnetic valves 75a to 75d and the discharge ports 77a and 77b before and after the movable partition wall are controlled. Make it appropriate.

  The descending speed of the elevating rod is controlled by sequentially controlling the plurality of electromagnetic valves 73k to 73t from “open” to “closed”, the flow rate is limited, and when it is all “closed”, it stops. Before and after the hoisting rod reaches the lower limit of the hoistway, the opening and closing port in the movable partition and the intake port and drainage port of the hoisting rod are controlled to be “open”.

  As described above, the shock absorbers 18a to 18d accumulate the impact force when the lifting rod is lowered. When the lifting / lowering rod starts to rise immediately after reaching the lower limit, the pressure pushes up the movable partition to a predetermined position, and at this timing, the water stored in the lifting / lowering shaft is drained under the movable partition. When returning to a predetermined position, the opening on the movable partition is controlled to be “closed”.

  From FIG. 2, the lifting rod 20a is located at the upper limit relative to the lifting rod 20b. Before and after the elevating rod reaches the upper limit, the water in the water storage tank 90 is supplied to the elevating rod 20a by opening the water distribution port at the upper portion of the hoistway 11a. When the lifting / lowering rod reaches the upper limit, the amount of water accommodated in the lifting / lowering rod starts to drop immediately after being controlled so as to become a prescribed amount, and the operation described above is repeated thereafter.

  The water tank has light-weight tanks 91a and 91b, water-intake channels 92a and 92b and water-out channels 93a and 93b in the light-weight tank, and the water-intake channel of the light-weight tank is connected to the water tank and the water-out channel is connected to the water distribution channel. In either case, opening and closing can be controlled. By controlling the amount of water in the lightweight tank to a level corresponding to the amount stored in the lifting / lowering tank and increasing the flow rate of the water distribution, the water supply time to the lifting / lowering tank can be shortened.

  As described above, by appropriately controlling the water supply / drainage of the lifting / lowering rod, the movable partition wall and the plurality of valves, the lifting / lowering rod can continue to move up and down alternately in the hoistway. The power generation means can obtain power from a power generation turbine connected to a pulley shaft 15 mechanically coupled to the pulley.

  FIG. 8 shows a perspective view of the first embodiment of the safety device. As shown in the figure, the safety device 80 has a known brake unit 84, a take-up reel 81, and a reel support 82, and is installed at an intermediate upper portion of the hoistways 11a and 11b. The reel shaft 83 of the take-up reel is mechanically coupled to the brake unit so that the take-up reel in contact with the brake unit is braked to stop both the lifting rods. Works.

  A rope 87 such as a wire is wound around the take-up reel, and one end is connected to the lifting rod 20a and the other end is connected to the upper portion of the lifting rod 20b, and the rope length corresponds to the vertical movement stroke of the lifting rod. The number of turns wound around the take-up reel is set, and the midpoint of the rope is mechanically coupled to the take-up reel. The pulley supports 85a and 85b and pulleys 86a to 86d at the upper part of the hoistway in the path are connected to the hoisting rod.

  The brake unit is brake-controlled when the lifting / lowering rod is moved to an initial position at a very low speed at the start, or when an apparatus abnormality is detected.

  FIG. 9 shows a perspective view of a first embodiment of a power feeding means for the lifting / lowering rod. As shown in the figure, power receiving pipes 101a and 101b are provided at the upper part of the lifting / lowering rod, and power transmission pipes 100a and 100b are provided at a vertical upper part of the power receiving pipe, both of which are provided with a power cable. The power transmission pipe has a telescopic structure, and is connected between the telescopic strokes before the elevating rod reaches the upper limit to supply a control power to the elevating rod.

  FIG. 10 is a perspective view of a first embodiment of the lifting / lowering rod and the movable partition locking device. One or more locking devices are provided on the lower surface of the movable partition wall to prevent bouncing when the elevating rod and the movable partition wall are in contact. As shown in the figure, a lock rod 44, fixed plates 111 and 114 under the movable partition, movable plates 112 and 113, springs 119a to 119d, and a cam mechanism are provided on the bottom surface of the elevating rod. When the lock rod of the elevating rod is guided by the guide hole 77 on the movable partition wall to spread the movable plate and hit the hook portion of the lock rod, the movable plate returns to a fixed position and is locked.

  The cam mechanism includes electromagnetic solenoids 115a and 115b, universal joints 116a and 116b, cam rods 117a and 117b, and cams 118a and 118b fixed to the fixed plate 111. When the shaft of the electromagnetic solenoid expands and contracts, the lock is released when the lock rod is released while the cam rotates and spreads the movable plate.

FIG. 11 is a perspective view of the first embodiment of the pulley support structure, the pulley, and the rope. If the rope breaks, serious accidents such as device destruction are unavoidable, so even a single one is selected to have sufficient strength. However, there is always a possibility of breakage due to mechanical fatigue or the like, and only one is not sufficient. The ropes 16a and 16b and the pulley of the path are independent, and one end of the rope is connected to the upper end of the lifting rod 20a and the other end is connected to the upper end of the other lifting rod 20b. Further, since the rotation detection sensors 120a and 120b such as a rotary encoder connected to the pulley shaft are provided, the disconnection of the rope can be detected. The sensor is also used for position detection and acceleration detection of the lift.
For this reason, even if one rope breaks, it can move to a predetermined position of the lifting rod, and if the water supply / drainage is stopped at the upper and lower limits, the vertical movement of the lifting rod can be stopped.

  Since water resources are circulated and reused, it is possible to obtain inexpensive and stable power that is not affected by weather conditions.

  Since there is no need to burn fossil fuels such as oil / coal, it can generate electricity at low cost and emit no carbon dioxide, which is a factor in global warming.

  Since most of the basic structures are sealed, there are few environmental impacts and restrictions on the installation location, and the location and scale can be selected according to the scale of the power generation output. Since a plurality of structures of the same scale can be arranged side by side, standardization is easy and the installation cost can be reduced.

  Many of the basic structures can be installed in water, for example, because of the sealed structure. Since water supply and drainage are repeated so that water near the water surface is circulated to the bottom of the water, a water flow can be forcibly generated. In order to improve water pollution such as rivers and lakes where there is little flow, water containing a lot of oxygen near the surface of the water is transported to the bottom of the water and the oxygen concentration in the water increases at the same time as power generation.

The basic principle of power generation is the same as that of existing dams, and it is possible to change the structure to the present invention depending on whether or not a mechanism for pumping water is provided.

1 is a perspective view of a first embodiment of a hydroelectric generator according to the present invention. It is a figure explaining the structure of the hydraulic power unit which concerns on this invention. It is a perspective view of the lid of the first embodiment according to the present invention in an “open” state. It is a perspective view of the lid of the first embodiment according to the present invention in an “open” state. FIG. 3 is a perspective view of the movable partition according to the first embodiment of the present invention in which the opening / closing port of the movable partition is in an “open” state. It is a perspective view of the opening and closing opening of the movable partition wall of the first embodiment according to the present invention in a “closed” state. It is a set figure of a first embodiment of a roller device according to the present invention. 1 is a perspective view of a first embodiment of a safety device according to the present invention. 1 is a perspective view of a first embodiment of a power feeding device according to the present invention. It is a perspective view of 1st embodiment of the locking device of the raising / lowering rod and movable partition which concerns on this invention. 1 is a perspective view of a first embodiment of a pulley support structure, a pulley, and a rope according to the present invention.

Explanation of symbols

10a and 10b hoistway structures 11a and 11b hoistway 12a and 12b water distribution ports 13a to 13c pulley support structures 14a to 14c pulley 15 pulley shafts 16 and 16a and 16b ropes 17a to 17d support bodies 18a to 18d shock absorber 19 seal 20a And 20b Lifting rod 21 Water intake port 22 Water intake port lid 23 Motor with speed reducer 24 Inner gear 25 Pinion gear 26 Cover guide rod 30 Drain port 31a and 31b Drain port cover 32a and 32b Motor with speed reducer 33a and 33b Pinion gear 34a and 34b Inner gear 35a and 35b Motor supports 36a and 36b Stopper plates 37a and 37b Cover guide rod 40 Locking device 41 Locking support 42 Electromagnetic solenoid 43 Moving plate 50a to 50f Roller device 51 Roller 52 Bearing 53 54a and 54b Side covers 55a and 55b Plate spring holders 56a and 56b Plate spring 57 Roller receivers 58a to 58c Bolt 60 Shock absorbing structure 61 Movable partition wall 62 Opening and closing port 63a and 63b Opening and closing port lid 64a and 64b Motor with speed reducer 65a And 65b Pinion gears 66a and 66b Ball screws 67a and 67b Arms 68a and 68b Ball screw tables 69a and 69b Cover guide rods 70a to 70t Water guide pipe 1
71a to 71d Water conduit 2
72a to 72t Check valves 73a to 73t Electromagnetic valves 74a to 74d Electromagnetic valves 75a and 75b Electromagnetic valves 76a and 76b Guide pipes 77, 77a and 77b Guide hole 80 Safety device 81 Take-up reel 82 Reel support 83 Reel shaft 84 Brake unit 85a and 85b Pulley supports 86a to 86d Pulley 87 Rope 90 Reservoir 91 Lightweight tanks 92a and 92b Inlet passages 93a and 93b Outlet passages 100a and 100b Power transmission tubes 101a and 101b Power receiving tubes 110 Locking device 111 Fixed plate 112 Movable plate 113 Movable plate 114 Fixing plates 115a and 115b Electromagnetic solenoids 116a and 116b Universal joints 117a and 117b Cam rods 118a and 118b Cams 119a to 119d Spring,
120a and 120b rotation detection sensor

Claims (14)

  A hydroelectric generator comprising two sets of hoistway, shock absorbing structure, and hoisting rod, and the hoisting rod is connected by a rope such as a wire and moves up and down alternately in the hoisting channel.   The hydroelectric generator according to claim 1, wherein the hoistway according to claim 1 is provided with a water distribution port capable of controlling opening and closing at an upper portion and a drain port at a lower portion.   The hydraulic power generator according to claim 1, wherein the lifting / lowering rod according to claim 1, further comprising a water intake port capable of controlling opening and closing at an upper portion and a drain port capable of controlling opening and closing at a lower portion.   2. The hydroelectric generator according to claim 1, further comprising: a movable partition wall separated from the hoistway and an opening / closing port capable of controlling opening and closing in the movable partition wall.   The hoistway according to claim 2, comprising a plurality of water conduits communicating with the water storage tank, a valve for controlling opening and closing of each of the water conduits, and a check valve or a valve integrated with the check valve. The hydroelectric generator according to claim 1.   In the hoistway, a water storage pipe is provided before and after a predetermined position of the movable partition wall, further including a water conduit for drainage, and a valve capable of controlling the opening and closing of each of the water guide pipes below and above the movable partition wall. The hydroelectric generator according to claim 1, wherein the amount can be adjusted.   4. The hoisting rod according to claim 3, wherein a plurality of rollers are supported on the side surfaces together with springs, and the friction with the inner wall of the hoistway is reduced to facilitate the circumferential movement of the hoisting rod. Item 4. The hydroelectric power generation device according to item 1.   5. The shock absorbing structure according to claim 4, wherein the movable partition is supported by a known shock absorber and a support, and the movable partition is returned to a predetermined position when the pressure applied to the shock absorber is released. The hydroelectric power generator according to claim 1, wherein the hydroelectric power generator is operated.   The power receiving cable is provided in the upper part of the hoisting rod and a power transmission tube in the vertical upper part thereof, and a movable power cable is eliminated by supplying control power from the power transmitting tube to the hoisting rod. Hydroelectric generator.   When the hoist is moving up and down, the pulley supporting the rope also repeats forward and reverse rotation, and obtains electric power from the power generation turbine connected to the shaft mechanically coupled to the pulley. The hydroelectric generator according to claim 1.   A water tank and two sets of lightweight tanks are provided therein, and a water inlet of the light tank is provided in the water tank, and a water outlet is connected to a water distribution port of the hoistway, both of which are provided with valves that can control opening and closing. The hydroelectric generator according to claim 1.   A winding reel and a known brake unit are provided in the middle upper part of the hoistway, and a rope such as a wire is wound around the winding reel, and both ends are connected to the hoisting rod. 2. The hydroelectric generator according to claim 1, wherein the hydraulic power generator can be operated to emergency stop the vertical movement of the lifting / lowering rod.   A lock rod, a guide hole in the movable partition, a movable plate supported by a spring, a fixed plate, and a known electromagnetic solenoid and a cam structure for releasing the lock are provided at the bottom of the lift rod. The hydraulic power generator according to claim 1, wherein a bouncing when the elevating rod and the movable partition are combined is prevented.   In the rope according to claim 1, by providing one or more mechanisms of the rope, pulley, and disconnection detecting means, the probability of simultaneous disconnection due to mechanical fatigue or the like is low, and an accident due to disconnection can be avoided in advance. The hydroelectric generator according to claim 1.