WO2015014298A1

WO2015014298A1 - Water-flow energy conversion device

Info

Publication number: WO2015014298A1
Application number: PCT/CN2014/083426
Authority: WO
Inventors: 郑广生
Original assignee: Zheng Guangsheng
Priority date: 2013-08-01
Filing date: 2014-07-31
Publication date: 2015-02-05
Also published as: CN103967685A; CN103967685B

Abstract

A water-flow energy conversion device, comprising an upper end cover (1), a lower end cover (2), and an arc-shaped volute (3) and a volute front baffle (4) connecting the upper end cover (1) and the lower end cover (2). The upper end cover (1) and the lower end cover (2) are provided with shaft holes, a water wheel shaft (5) being installed within the shaft holes, a blade disk (12) being fixedly connected to the central portion of the water wheel shaft (5), the upper portion and lower portion of the blade disk (12) being connected to blade rods (13, 14), the blade rods (13, 14) being movably connected to blades (131, 141) capable of rotating around the blade rods. The volute is provided with a water intake (7) and a water outlet (8). Water barrier plates (15) which prevent the passage of water are arranged between the water intake (7) and water outlet (8). The water barrier plates (15) are arranged on the volute front baffle (4), the upper end cover (1) or the lower end cover (2). A space for the blades (131, 141), the blade rods (13, 14) and the blade disk (12) to pass through is arranged between the water barrier plates (15) or between the water barrier plates (15) and the upper end cover (1), and the water barrier plates (15) and the lower end cover (2). Water flow from the water intake (7) to the water outlet (8) pushes the water wheel shaft (5) to rotate. The present water-flow energy conversion device is simple in structure, has low manufacturing costs, and makes full use of natural water-flow energy, thereby efficiently using water flow to generate electricity.

Description

Water flow energy conversion device

Technical field

The invention relates to a water flow energy conversion device, in particular to a water flow energy conversion device capable of utilizing water flow energy of rivers and oceans on a large scale and efficiently. Background technique

In today's world, hydropower technology relies on the construction of dams to make use of the river's hydropower resources. There is not much water in a river to repair dams. Therefore, we can only let most of the river's hydropower resources flow away. The extremely abundant marine hydropower resources are even more difficult to repair the dam, so that we can only hope to sigh. The main reason is that the current turbines rely on the dam to control the flow of water to push the turbine to rotate to achieve the purpose of water energy conversion. However, for rivers and oceans under natural conditions, there is nothing to do. Summary of the invention

In order to solve the above technical problems, the present invention provides a water flow energy conversion device capable of efficiently utilizing energy of rivers and ocean currents under natural conditions, which has a simple structure, high conversion efficiency, and low cost.

In order to achieve the above object, the technical solution adopted by the present invention is:

The invention provides a water flow energy conversion device, comprising an upper end cover, a lower end cover, an arc-shaped volute and a volute front baffle connecting the upper end cover and the lower end cover, and a water control plate connected to the end of the volute, the upper end a shaft hole is disposed in the cover and the lower end cover, a water wheel shaft is mounted in the shaft hole, a blade disk is connected to the middle of the water wheel shaft, and at least two upper blade rods are fixedly connected to the upper surface of the blade disk, preferably The upper surface of the blade disk is provided with two upper blade bars in a direction parallel to the water wheel axis, and the lower surface of the blade disk is fixedly coupled with at least two lower blade bars, preferably, the lower surface of the blade disk Two lower blade bars are disposed in a direction parallel to the water wheel axis, and the lower blade bars are movably coupled to the lower blades; the blade bars are disposed in a grid-like structure.

The volute is provided with a water inlet and a water outlet. Preferably, the volute is provided with a water inlet and a water outlet in a direction parallel to the water wheel axis. A water blocking plate for blocking the passage of water is disposed between the water inlet and the water outlet, and the water blocking plate is disposed on the upper end cover and the lower end cover, and the water blocking plate and the water blocking plate and the front volute front baffle There is a space between the blade, the blade rod and the blade disc, and the water outlet is provided with a drain pipe, and the volute, the water control plate, the water blocking plate and the drain pipe form a control water flow direction along the water wheel axis. A flowing S-shaped water flow channel. The water wheel shaft is located in the S-shaped water flow channel, the S-shaped water flow channel controls the water flow in the rotation direction of the water wheel axis, and the S-shaped channel is sealed, so that the water flow is more concentrated, and the water flow entering the water inlet is all applied to the blade, thereby improving The efficiency of the device. The upper water blocking plate is provided with an upper blade guide for guiding the blade to rotate through the space, and the lower water blocking plate is provided with a lower blade guide for guiding the blade to rotate through the space.

The water blocking plate is provided with a water flow regulating door that regulates the flow of water through the water blocking plate. The water flow regulating door achieves the hydraulic power by controlling the water wheel shaft by adjusting the amount of water flowing through the water blocking plate. The water flow regulating door is closed, the water flow cannot pass through the water blocking plate, and the water wheel shaft receives the maximum hydraulic power. Open the water flow adjustment door and the water wheel shaft gets the least amount of water.

The blade and the blade lever are movably coupled and are arcuate in shape and have the same curvature as the circumference of the blade stem. When the blades are all open, the blade rods are arranged together to form a full circle, and the blade rods are mesh-like structures, allowing water to flow through the blade bar grid, and the blade bar grid and the blade rod spacing are matched with each other. With this structure, the blade rod and the blade can be rotated in the interval, and the interval can be blocked to prevent the water flow from passing through the interval, and at the same time, the interval can block the flow of water from the grid of the blade rod through the interval, and the water blocking plate is improved. Water blocking performance.

The blade, the water wheel shaft and the blade disc are internally arranged to be sealed hollow or internally filled with a lightweight material. This makes the specific gravity of the blade and the water wheel shaft close to the specific gravity of the water. The weight of the blade and the water wheel shaft in the water is reduced, which reduces the friction of the hinge and the bearing. Improve the efficiency of the device.

The water inlet is connected with an inlet pipe, the inlet pipe is provided with a first water inlet door and a second water inlet door, and the first water inlet door and the second water inlet door are both one-way water flow gates, A water inlet door is arranged at the end of the water inlet pipe, and the water inlet direction is opposite to the water inlet direction of the water inlet port, and the second water inlet door is disposed at a side opposite to the water inlet pipe and the water inlet, the water inlet direction and the water inlet direction of the water inlet the same. With this structure, when the force of the water flow opens the second water inlet door, the first water inlet door is closed, the water flow enters from the second water inlet door, or the power of the water flow opens the first water inlet door, and the second water inlet door is closed. Water flows from the first inlet. In this way, the device can be applied not only to one-way water flow such as rivers, but also to utilizing two-way water flow of ocean tides, and the application range is wider.

a drain pipe is connected to the water outlet, a first drain gate and a second drain gate are disposed at two ends of the drain pipe, and the first drain gate and the second drain gate are one-way gates, and the first drain gate water flow The direction is the same as the water flow direction of the water inlet, and the water inlet direction of the second drainage door is opposite to the water flow direction of the water inlet. With this configuration, when the force of the water flow outside the device causes the first drain door to open when the second drain door is closed, the water flow is discharged from the first drain door, or the force of the water flow causes the first drain door to close when the second drain door is opened, the water flow Discharge from the second drain door.

A water control plate is connected to the end of the volute, and the water control plate has a circular arc shape and cooperates with the curvature of the blade rod, so that the water control plate can prevent or reduce the water flow from the gap between the water control plate and the blade rod. Passed in. The water control board is two-thirds The arc of a circle is long. The function of the water control board is to change the direction and concentration of the water flow and block the water flow, so that the water flow entering the volute acts on the blade, so that the conversion efficiency of the device is higher.

A water flow energy conversion device according to another aspect of the present invention includes an upper end cover, a lower end cover, an arc volute and a volute front baffle connecting the upper end cover and the lower end cover, and a water control plate connected to the end of the volute. The upper end cover and the lower end cover are provided with a shaft hole, a water wheel shaft is mounted in the shaft hole, a blade rod disc is connected to the upper portion of the water wheel shaft, and the blade rod disc is provided with at least two blade rods. Preferably, the blade rod disc is vertically connected to the water wheel shaft, and the blade rod disc is provided with two blade rods parallel to the blade rod disc, and the blade rod is movably connected with a blade rotatable around the blade rod. a lower portion of the water wheel shaft is connected to a blade bar disk, and the blade bar disk is provided with two blade bar bars corresponding to the lower end of the blade corresponding to the upper blade bar, and the volute is disposed in a direction parallel to the water wheel axis There is a water inlet and a water outlet, and a water blocking plate for preventing water from flowing therethrough is disposed between the water inlet and the water outlet, the water blocking plate is fixed on the front volute of the volute, and between the water blocking plate and the upper end cover Leave An upper space through which the blade and the blade rod disc pass, a lower space for the blade gear bar to pass between the water blocking plate and the lower end cover, wherein the water outlet is provided with a drain pipe, the volute, the control The water plate, the water blocking plate and the drain pipe form an S-shaped water flow channel that controls the flow of water along the rotation direction of the water wheel shaft.

The blade includes at least one blade unit, and the blade unit is a rectangular parallelepiped blade or a rectangular parallelepiped blade with a stop, and the blade unit and the blade stem are connected by a hinge. With this structure, there is a certain time difference when a plurality of blade units fall through the interval, so that the force on the water wheel shaft is reduced when each blade falls, without affecting the stable operation of the water wheel shaft.

A guide bar is disposed between the upper end cover and the lower end cover to allow the lower end of the blade to be turned up horizontally to pass the upper partition. The guide bar guides the turning of the blade and enables the blade to be smoothly turned over.

The water inlet is connected with an inlet pipe, and the inlet pipe is provided with a first water inlet door and a second water inlet door, and the first water inlet door is disposed at an end of the water inlet pipe, and the water inlet direction and the water inlet are advanced. The water inlet direction is opposite, and the second water inlet door is disposed on the side opposite to the water inlet port, and the water inlet direction is the same as the water inlet direction. With this structure, when the force of the water flow opens the second water inlet door, the first water inlet door is closed, the water flow enters from the second water inlet door, or the power of the water flow opens the first water inlet door, and the second water inlet door is closed. Water flows from the first inlet.

a first drain gate and a second drain gate are disposed at two ends of the drain pipe, wherein the first drain gate and the second drain gate are one-way doors, and the water flow direction of the first drain gate is the same as the water flow direction of the water inlet. The water inlet direction of the second drain door is opposite to the water flow direction of the water inlet. With this configuration, when the force of the water flow outside the device causes the first drain door to open when the second drain door is closed, the water flow is discharged from the first drain door, or the force of the water flow causes the first drain door to close when the second drain door is opened, the water flow Discharge from the second drain door. The inlet pipe and the drain pipe are arranged so that the device can utilize the two-way water flow of the ocean tide, and the application range is wider. When used in a river with one-way flow, there is no need to install an inlet pipe, and the drain pipe may not be provided.

The blade is sealed hollow or made of an internally filled lightweight material. Thus the specific gravity of the blade is close to the specific gravity of the water. The reduced gravity of the blade in the water reduces the friction of the hinge.

A water control plate is connected to the end of the volute, and the water control plate has a circular arc shape and cooperates with the curvature of the blade rod, so that the water control plate can prevent or reduce the water flow from the gap between the water control plate and the blade rod. Passed in. The water control panel has an arc length of one-half of a circumference. The function of the water control board is to change the direction and concentration of the water flow and block the water flow, so that the water flow entering the volute acts on the blade, so that the conversion efficiency of the device is higher.

Both technical solutions of the present invention employ an S-shaped water flow channel. When the turbine moves in a linear natural flow environment such as a river, the water pushes the blade on the water surface to rotate the water wheel shaft while overcoming the water flow resistance of the blade on the back surface, because the blade on the back surface meets The blades of the water surface move in opposite directions, and the strength of the two forces determines how much water is obtained by the water wheel shaft. The s-shaped passage of the present invention changes the linear motion of the water flow into the rotational motion of the water flow, making full use of the energy of the water flow, thereby obtaining greater conversion efficiency.

With the above technology, the technical effects produced by the present invention are:

1. The invention is placed in water by means of chain anchoring or scaffolding, column fixing, etc., when the water flows through the device, due to the blocking of the water blocking plate, the water flow can only flow along the S-shaped water flow channel, due to the water control plate The water lock action causes all the water flowing into the S-shaped channel to act on the blades of the water wheel shaft, and the water flow direction of the present invention is more efficient because the S-shaped water flow channel changes the direction of the water flow to be the same as the direction in which the water wheel shaft rotates. high.

2. Since a water inlet pipe with a water inlet direction opposite to the water inlet direction is connected to the water inlet, a one-way water inlet door is provided at both ends of the water inlet pipe, and a one-way drainage door is provided at both ends of the water pipe. The water flow energy conversion device of the present invention can also utilize two-way water flow, for example: tidal energy of the ocean, which is more widely used. DRAWINGS

Figure 1 is a plan view of Embodiment 1;

2 is a schematic view showing the structure of the water wheel shaft of Embodiment 1 (the blade rods are distributed along one circumference);

Figure 3 is a schematic view of the water wheel shaft of the embodiment 1 (the blade rod is distributed along two circumferences);

4 is a schematic structural view of a water wheel shaft of Embodiment 2;

Figure 5 is a schematic structural view of the corresponding water blocking plate shown in Figure 2;

Figure 6 is a schematic structural view of the corresponding water blocking plate shown in Figure 3;

Figure 7 is a schematic structural view of the corresponding water blocking plate shown in Figure 4; 8 is a schematic view showing the structure of a blade of Embodiment 2, and the content of the invention

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings and preferred embodiments, but the invention is not limited to the following examples.

Example 1

As shown in FIG. 1, the water flow energy conversion device of the present invention comprises an upper end cover 1, a lower end cover 2, a volute 3 connecting the upper end cover 1 and the lower end cover 2, and a volute front baffle 4 located in front of the volute. And water control board 9.

The volute 3 is arc-shaped, and is provided with a water inlet 7 and a water outlet 8. The water inlet 7 and the water outlet 8 are both located in front of the volute 3, and a water blocking plate 15 is further arranged between the water inlet 7 and the water outlet 8. A water control plate 9 is disposed between the nozzle 8 and the volute 3, and the water control plate 9 is disposed above the water outlet 8 and connected to the volute 3. The water control plate 9 is a curved plate, and the arc length of the water control plate 9 is two. The arc length of one of the circumferences. The function of the water control plate 9 is to change the direction and concentration of the water flow and block the water flow, so that the water flow into the volute acts on the blades, so that the conversion efficiency of the device is higher. The volute 3 is provided with an inlet pipe 10 having a water inlet direction opposite to the inlet direction of the water inlet 7, and the inlet pipe 10 is connected to the water inlet 7, and the inlet pipe 10 is provided with a first inlet gate 101 and a second inlet gate 102, The first water inlet door 101 is disposed at the end of the water inlet pipe 10, and the second water inlet door 102 is disposed at a side of the water inlet pipe 10 opposite to the water inlet port 7. The water inlet pipe 10 is used to make the water flow bidirectionally enter the water, first Both the inlet gate 101 and the second inlet gate 102 are one-way doors that allow only water to enter without allowing water to flow out.

The volute is further disposed at one end of the water outlet 8 with a drain pipe 11 disposed on one side of the volute, and the drain pipe 11 is provided with a first drain gate 111 and a second drain gate 112, a first drain gate 111 and a second The drain gate 112 is disposed at both ends of the drain pipe, and the first drain gate 111 and the second drain gate 112 are both one-way doors, and only the water flow can be discharged without the water flow entering, and the water discharge direction of the first drain gate 111 is advanced. The water flow direction of the nozzle 7 is the same, the water discharge direction of the second drain door 112 is opposite to the water inlet direction of the water inlet 7, and the second drain door 112 is located on the same side of the water outlet. When the force of the water flow outside the device causes the second drain door 112 to close, the first opening is performed. A drain gate 111, the water flow is discharged from the first drain gate 111, or the force of the water flow causes the first drain gate to close when the second drain gate 112 is opened, and the water flow is discharged from the second drain gate 112. The interaction between the inlet pipe and the drain pipe allows the device to operate in a reciprocating flow such as a marine tide.

The volute 3, the water blocking plate 15, the water control plate 9 and the drain pipe 11 form an S-shaped water flow passage, so that the water flow direction coincides with the rotation direction of the water wheel shaft 5, and the water flow entering the S-shaped water flow passage all acts on the blade. , improve the conversion efficiency of the device.

A shaft hole is disposed in the upper end cover 1 and the lower end cover 2, wherein the water wheel axle 5 is mounted in the shaft hole, and a bearing 6 is mounted between the water wheel shaft 5 and the shaft hole, and the blades 131, 141 and the water wheel shaft 5 are disposed For sealing hollow or filled with light weight Made of materials. This makes the specific gravity of the blade and the water wheel shaft close to the specific gravity of the water. It can reduce the friction of the hinge and the bearing and improve the efficiency of the device. One end of the water wheel shaft 5 can be connected to a generator or a water pump through a speed increase box.

As shown in Figure 2 - Figure 3, Figure 2 is a schematic diagram of the structure of the water wheel shaft along the circumference of the blade rod. The corresponding water blocking plate structure is shown in Figure 5; Figure 3 is the water distributed along the two circumferences of the blade rod. Schematic diagram of the axle, the corresponding water blocking plate structure at this time is shown in Figure 6.

As shown in FIG. 2, a blade disc 12 is fixedly coupled to the middle of the water wheel shaft 5, and the vane disc 12 is vertically connected to the water wheel shaft 5, and the vane disc 12 is provided with a vane rod parallel to the water wheel shaft, and the vane rod The upper blade bar 13 and the lower blade bar 14 are connected. The upper blade bar 13 and the upper blade 131 are connected by a hinge, and the lower blade bar 14 and the lower blade 141 are connected by a hinge. The upper blade 131 and the lower blade 141 are arc-shaped. The blade rod is arranged in a grid-like structure and has an arc shape, which allows water flow to pass through the blade bar grid, and the size of the blade rod and the size of the water blocking plate are matched with each other, so that the water blocking plate interval allows the blade rod to be spaced And the blades pass through and can prevent or reduce the flow of water from the water blocking plate. The upper blade lever 13 of the present embodiment is arranged in the circumferential direction on the upper surface of the blade disk 12, and two layers of upper blade levers are disposed in the radial direction on two circumferences, and two blade levers 13 are disposed on each circumference; the lower blade lever 14 is arranged in the circumferential direction on the lower surface of the blade disc 12, and two layers of lower blade levers 14 are disposed in the radial direction on two circumferences, and two lower blade levers 14 are disposed on each circumference, and the upper blade lever 13 and the lower blade lever are disposed. The circumferences of 14 are respectively overlapped, and the upper blade bar 13 and the lower blade bar 14 can be arranged in the circumferential direction, so that the blades can be pressed against the blade bar after passing through the water blocking plate, thereby preventing the blade from being generated on the water wheel shaft. Too much impact affects the stable operation of the water wheel shaft.

As shown in FIG. 3, further, two or more upper blade levers or two or more lower blade levers may be disposed along the circumferential direction of the blade disk, so that the area of the blade is correspondingly reduced. The strength of the blade can be increased.

As shown in FIG. 6, the water blocking plate is disposed between the water wheel shaft 5 and the volute front baffle 4, and includes an upper water blocking plate 15 and a lower water blocking plate 16, and the upper water blocking plate 15 is fixedly mounted on the upper end cover 1 The upper and lower water blocking plates 16 are fixedly mounted on the lower end cover 2, and the water blocking plate is provided with a water flow regulating door 152 for regulating the flow rate of the water flowing through the water blocking plate. The water flow regulating door 152 can be mounted on any one of the water blocking plates. The function of the water flow regulating door is to obtain the hydraulic power by adjusting the water flow through the water blocking plate to the control of the water wheel shaft. When the water flow regulating door is closed, the water flow cannot pass through the water blocking plate, and the water wheel shaft obtains the maximum hydraulic power. Open the water flow adjustment door and the water wheel shaft gets the least amount of water.

Between the water blocking plates and between the water blocking plate and the volute front baffle 4, a space for the passage of the blade, the blade bar and the blade disk is left, and the interval includes the upper water blocking plate 15 and the upper water blocking The upper blade passage 17 and the lower water blocking plate 16 between the plate 15 and the volute front baffle 4 for the upper blade 131 and the upper blade bar 13 are passed, and the lower water blocking plate 16 and the volute front baffle 4 a lower blade passage 18 through which the lower blade 141 passes, an upper water blocking plate 15 and a lower water blocking A blade disk passage 19 is provided between the plates 16 for the blade disc to pass therethrough. The upper water blocking plate 15 and the lower water blocking plate 16 are moderately fitted with the water wheel shaft 5, so that the water wheel shaft 5 can be flexibly rotated, and the water flow can be prevented or reduced from passing through the gap between the water blocking plate and the water wheel shaft. The upper water blocking plate 15 is further provided with an upper blade guide 151 for guiding the upper blade 131 to rotate through the upper blade passage 17, and the lower water blocking plate 16 is further provided with a guide lower blade 141 for rotating to pass through the lower blade passage 18. Lower blade guide 161; the upper blade guide 151 and the lower blade guide 161 are both arcuate tubes.

The water flows along the inlet pipe 10 from the water inlet 7, and flows clockwise in the volute due to the blocking of the water blocking plate 15, and the water flow pushes the upper blade 131 and the lower blade 141 to rotate the water wheel shaft 5 clockwise, when the blade reaches the water blocking In the position of the plate 15, the upper blade 131 gradually opens along the upper blade guide 151 and passes through the upper blade passage 17, which gradually opens along the lower blade guide 161 and passes through the lower blade passage 18, the blade disk 12 Then, from the blade disc passage 19, since the upper blade lever 13 and the lower blade lever 14 are erroneously mounted on the circumference of the blade disk, the upper blade 131 and the lower blade 141 are pressed against the blade after passing through the water blocking plate. The rod or the water wheel shaft 5 prevents the blade rod or the water wheel shaft from being stressed at the same time.

Example 2

As shown in Fig. 4 and Fig. 7, the water flow energy conversion device of the present invention is the second embodiment, and the second embodiment employs the same S-shaped water flow path and inlet pipe as in the first embodiment.

In the second embodiment, the upper portion of the water wheel shaft 5 is connected with a blade rod disc 27, and the blade rod disc 27 is provided with two blade rods 20 which are uniformly and symmetrically distributed on the blade rod disc 27, and the blade rod 20 is connected The blade 21, the blade 21 is connected to the blade rod 20 through a hinge, the blade 21 is rotatable in a horizontal direction, a lower portion of the water wheel shaft is connected to a blade bar disk 28, and the blade bar disk 28 is provided with two blade levers 22 The vane lever 22 is axially disposed corresponding to the vane 21 for restricting the vane 21 from moving downward only to the vane lever 22.

The water blocking plate 23 is fixed on the volute front baffle 4, and an upper space 24 for the passage of the blade 21 and the blade bar disc 27 is left between the water blocking plate 23 and the upper end cover 1, the water blocking plate 23 and the lower end cover A lower space 26 is provided between the two for the vane lever disc 28 to pass. A water flow regulating door 231 is also disposed on the water blocking plate 23, and the water flow regulating door obtains the hydraulic power by controlling the water flow rate of the water flow through the water blocking plate to control the water wheel shaft. The water flow adjustment door is closed, the water flow cannot pass through the water blocking plate, and the water wheel shaft receives the maximum hydraulic power. Open the water flow adjustment door and the water wheel shaft gets the least amount of water.

The water blocking plate 23 and the water wheel shaft 5 are moderately matched to allow the water wheel shaft 5 to flexibly rotate and prevent or reduce the flow of water from the gap between the water blocking plate and the water wheel shaft.

Fig. 8 is a structural view of a blade 21 according to a second embodiment of the present invention, the blade 21 including at least one blade unit 211, and the blade unit 211 is a rectangular parallelepiped blade or a rectangular parallelepiped blade with a stop. The blade 21 and the blade lever 20 are connected by a hinge. With this structure, the adjustable blade unit 211 is combined into a plurality of blades while being turned up through the upper space, And each blade can have a certain time difference when it falls through the upper interval. In this way, the force of the blade bar is reduced when each blade is dropped, and the stable operation of the water wheel shaft is not affected.

As shown in FIG. 7, between the upper end cover 1 and the lower end cover 2, there is provided a rising bar 25 for raising the lower end of the blade 21 horizontally to pass the upper space 24, and between the lower end of the rising bar 25 and the lower end cover 2 There is a gap that can pass through the blade bar disk 28. When the water wheel shaft 5 rotates, the lower end of the blade 21 which is rotated to the ascending guide bar 25 is in contact with the ascending guide bar 25. Under the action of the ascending guide bar 25, the lower end of the blade 21 is turned up horizontally, and the upper space 24 is passed.

Further, the inside of the blade 21 and the water wheel shaft 5 are arranged to be sealed hollow or internally filled with a light material, so that the gravity of the blade and the water wheel shaft in the water is reduced, thereby reducing the frictional resistance of the leaflet and the bearing, and improving the device. s efficiency.

The two technical solutions of the present invention all adopt a closed s-shaped water flow channel, and the S-shaped water flow channel changes the linearly moving water flow into a rotating motion water flow, and the blades in the water wheel shaft work in the same direction water flow, so that the water wheel shaft The efficiency of water energy conversion is maximized, and the water after work is discharged through the water outlet and the drain pipe.

When the two technical solutions of the present invention are implemented, according to the natural environmental conditions and water flow conditions of the river surface or the ocean, one or more of the inventions are firstly combined in series to a height exceeding the river water depth, and the device is connected to form a triangle or a The font is placed in the water and fixed. Under the barrier of the water blocking plate, the water flow can only flow in the direction of small resistance. Under the action of the water flow, the outer layer of the blade presses the inner blade of the blade, and the inner layer of the blade presses the water wheel shaft to drive the water wheel shaft to rotate. When the blade runs to the guide rail, the blade opens and passes through the blade lever and the water wheel shaft which can press the water wheel shaft, thereby rotating and rotating to achieve the purpose of water energy conversion.

Claims

claims

1. A water flow energy conversion device, characterized by:

It includes an upper end cover, a lower end cover, an arc-shaped volute connecting the upper end cover and the lower end cover, a volute front baffle, and a water control plate connected to the end of the volute;

The upper end cover and the lower end cover are provided with shaft holes, and a water wheel shaft is installed in the shaft hole. A blade disc is connected to the middle of the water wheel shaft, and at least two upper blade rods are fixedly connected to the upper surface of the blade disc. , the upper blade rods are arranged and installed in the circumferential and radial directions on the upper part of the blade disk, and at least two lower blade rods are fixedly connected to the lower surface of the blade disk, and the lower blade rods are arranged along the circumference of the lower part of the blade disk. and are arranged and installed in the radial direction, the upper blade rod is movably connected to the upper blade, and the lower blade rod is movably connected to the lower blade;

The volute is provided with a water inlet and a water outlet. A water blocking plate is provided between the water inlet and the water outlet to prevent the flow of water. The water blocking plate includes an upper water blocking plate provided on the upper end cover and a water blocking plate provided on the upper end cover. There is a lower water-blocking plate on the lower end cover. There is a space between the water-blocking plates and between the water-blocking plate and the front baffle of the volute for the blades, blade rods and blade disks to pass; the water outlet is provided with a Drainage pipe, the volute, water control plate, water blocking plate and drainage pipe form an S-shaped water flow channel that controls the flow of water along the rotation direction of the water wheel axis.

2. The water flow energy conversion device according to claim 1, characterized in that: the upper water blocking plate is equipped with an upper blade guide rail that guides the blade rotation to pass through the interval, and the lower water blocking plate is equipped with an upper blade guide rail that guides the blade rotation. With the lower blade guide rail passing through the interval, the water blocking plate is provided with a water flow regulating door for adjusting the flow of water passing through the water blocking plate.

3. The water flow energy conversion device according to claim 1, characterized in that: the blades and the blade rod are movably connected, their shapes are arc-shaped, and have the same radian as the circumference of the blade rod.

4. The water flow energy conversion device according to claim 1, characterized in that: the blades, water wheel shaft and blade disc are arranged to be sealed and hollow or made of lightweight materials filled inside.

5. The water flow energy conversion device according to claim 1, characterized in that: the water inlet is connected to a water inlet pipe, the water inlet pipe is provided with a first water inlet door and a second water inlet door, the first water inlet door is Both the water gate and the second water inlet gate are one-way water flow gates. The first water inlet gate is set at the end of the water inlet pipe, and its water inlet direction is opposite to that of the water inlet. The second water inlet gate is set at the inlet. On the side of the water pipe opposite to the water inlet, the water inlet direction is the same as the water inlet direction.

6. The water flow energy conversion device according to claim 1, characterized in that: the water outlet is connected to a drainage pipe, and a first drainage door and a second drainage door are provided at both ends of the drainage pipe, and the first drainage door The door and the second drain door are one-way doors, the water flow direction of the first drain door is the same as the water inlet flow direction, and the water inflow direction of the second drain door is opposite to the water inlet flow direction.

7. The water flow energy conversion device according to claim 1, characterized in that: the water control plate is in an arc shape matching the curvature of the blade rod, and the water control plate is an arc length of more than half of the circumference. .

8. A water flow energy conversion device, characterized by:

The upper end cover and the lower end cover are provided with shaft holes, and a water wheel shaft is installed in the shaft hole. The upper part of the water wheel shaft is connected to a blade rod disk, and the blade rod disk is provided with at least two blade rods, so The blade rod is movably connected with blades that can rotate around the blade rod. The lower part of the water wheel shaft is connected with a blade rod blocking disk. The blade rod blocking disk is provided with blades corresponding to the blade rods that can block the lower end of the blade. stop lever;

The volute is provided with a water inlet and a water outlet. A water blocking plate is provided between the water inlet and the water outlet to prevent the flow of water. The water blocking plate is fixed on the front baffle of the volute. The water blocking plate There is an upper space between the water blocking plate and the upper end cover for the blades and the blade rod disk to pass, and there is a lower space between the water blocking plate and the lower end cover for the blade rod disk to pass; the water outlet is provided with a drainage The volute, water control plate, water blocking plate and drainage pipe form an S-shaped water flow channel that controls the flow of water along the rotation direction of the water wheel axis.

9. The water flow energy conversion device according to claim 8, characterized in that: the blade includes at least one blade unit, and the blade unit is a cuboid blade or a cuboid blade with a stop.

10. The water flow energy conversion device according to claim 8, characterized in that: a guide bar is provided between the upper end cover and the lower end cover to enable the lower end of the blade to be turned upward to be horizontal so as to pass through the upper interval.