CN115506950A

CN115506950A - Open-close type vertical shaft fluid wheel power generation device

Info

Publication number: CN115506950A
Application number: CN202211247798.0A
Authority: CN
Inventors: 王为政; 王小柱
Original assignee: Wuhan Yuntaiji Technology Co ltd
Current assignee: Wuhan Yuntaiji Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2022-12-23

Abstract

The invention discloses an open-close type vertical shaft fluid turbine power generation device, which comprises an impeller, a generator and a support seat, wherein the generator is arranged on the support seat, and the impeller is arranged on a generator shaft and drives the generator shaft to rotate; the impeller comprises a hub and a plurality of blades, the blades are rotationally symmetric and uniformly distributed on the circumferential direction of the hub, and the hub is sleeved on the generator shaft; the blade comprises a blade frame and a blade plate, the blade plate is arranged on the blade frame, and the blade plate is connected with the hub through the blade frame; the leaf plate comprises a mesh plate and an opening and closing strip, and the opening and closing strip is arranged on the mesh plate. The device is suitable for wind energy or water energy environment, and is suitable for converting air flow kinetic energy, river water flow energy, ocean tide kinetic energy and ocean flow energy; the utilization rate of the energy of the fluid captured by the vertical shaft impeller is improved; the capacity of a single machine is improved; the natural kinetic energy of the fluid is better utilized; improving the manufacturing, transportation, installation and operation maintenance work; the power output is stable, and the annual power generation time is prolonged.

Description

Open-close type vertical shaft fluid wheel power generation device

Technical Field

The invention relates to the technical field of fluid kinetic energy power generation, in particular to an open-close type vertical shaft fluid turbine power generation device.

Background

At present, the wind power generation is carried out. The existing wind power generation fans used by people mainly comprise a horizontal shaft fan and a vertical shaft fan. The horizontal axis fan is mature in technology and occupies most share of the market, but the wind energy conversion efficiency is difficult to improve, the fan is difficult to increase on a large basis, the process manufacturing requirement is high, the transportation and installation difficulty is high, and the noise is large. The impeller for vertical shaft power generation mainly comprises a lift type vertical shaft impeller and a resistance type vertical shaft impeller, and the lift type vertical shaft impeller has poor starting performance, low efficiency and small single machine capacity. When one side of the resistance type vertical axis impeller works, the other side of the resistance type vertical axis impeller meets wind resistance, part of wind energy is offset, the full utilization of the wind energy is reduced, the efficiency is low, and the single machine capacity is small. Vertical axis wind turbines are rarely used in practice, but are paid attention to people because they can capture omnidirectional wind energy without an auxiliary steering mechanism.

River water kinetic energy power generation. The water energy power generation is to convert the energy of water flow into mechanical energy for rotating an impeller, and then the mechanical energy is converted into electric energy. The main realization form is that the dam is built by converting the potential energy of water into electric energy and increasing the water head if the potential energy is good, the dam construction cost is very high, the ecological environment is not protected, and the swimming growth of aquatic organisms is not facilitated. At present, the kinetic energy conversion of natural water flow in rivers is blank by using a vertical shaft impeller to generate electricity.

The tidal water kinetic energy power generation aspect. Tidal energy is one of the main renewable natural energy sources of ocean energy, and the tidal phenomenon is the periodic movement of seawater under the action of gravity of the moon and the sun. In the process of flood tide, the turbulent seawater has great kinetic energy, and along with the rise of the seawater level, the kinetic energy of a large amount of seawater is converted into potential energy; during the ebb and flow process, the seawater rushes, the water level is gradually reduced, and a large amount of potential energy is converted into kinetic energy. The sea water contains a great deal of kinetic energy and potential energy in the movement of rising tide and falling tide, which are called tidal energy. At present, the utilization of tidal energy is mainly potential energy, a reservoir is formed after a dam is built at a position rich in tidal energy, and the potential energy of large tidal difference during tide rising and tide falling is utilized to generate electricity. At present, the vertical shaft impeller is used for generating electricity by converting the kinetic energy of natural water flow during rising tide and falling tide and is not practically used.

The kinetic energy of the seawater can be used for power generation. Ocean currents are also called ocean currents, and seawater is not fixed and flows under the action of the earth rotation and the sun and moon movement; the fixed wind direction continuously blows over the sea surface to make the seawater flow; in addition, the seawater flow is formed by the difference of seawater temperature, salinity and contained suspended substances. Seawater always flows and carries huge energy. There is a steady flow of seawater in the submarine watercourse and strait, and the energy of the seawater mainly refers to the kinetic energy of the flow of seawater. At present, the kinetic energy conversion of ocean current energy uses a vertical shaft impeller to generate electricity, and the vertical shaft impeller is not practically used.

The prior art vertical axis impeller blades can be broadly divided into three categories: 1. fixing: the blades are fixed during the rotation of the impeller, such as the shapes of the lift-type blades and the drag-type blades are fixed, the kinetic energy obtained by the blades in the fluid is generated due to the difference of the curved surfaces of the blade profiles, and when the blades are enlarged to obtain larger energy, the obtained power and resistance are increased; after the blade profile curved surface is enlarged, the blade mass is increased, the mechanical friction force of movement is increased, and the efficiency of obtaining kinetic energy is reduced; the rotational inertia is increased, and the starting is difficult; this type of single machine has a small capacity and low efficiency. 2. The movable type: the blades are movable in the rotation process of the impeller, and if one blade drives the other blade to turn over for a certain angle; the blade is rotated by a certain angle; the blades are flexibly connected in series and rotate a certain angle to form the movable blades. The movable blades rotate under the action of bearing wind energy or water energy, the movable blades with certain mass can rotate only by consuming energy in the rotating process, the energy consumed is larger when the blades are larger, the difference between the energy consumed by the movable blades and the energy consumed is smaller, and the total efficiency is low; the movable blade has poor stability, high maintenance cost and low practicability. 3, a fixed type and an external shielding object are added, the blades are exposed when rotating to a power acting area, and the shielding object shields the periphery of the impeller when rotating to a resistance energy consumption area. The wind direction in the high air is not fixed, and the shielding position cannot be determined, so that the method is unrealistic to be used for shielding in the high air. The blade is used as a shelter in water, and the blade also has movement resistance in the static water behind the shelter, so that the transformation efficiency of reducing the water kinetic energy is low. In addition, silt can be piled up in the still water area in the shelter, and the operation of the blades is influenced.

At present, the vertical axis generator is small in single machine capacity, low in energy conversion efficiency, even difficult to start, obvious in technical defect, mostly in an exploration practice stage, and few in actual power generation application at present.

Disclosure of Invention

The invention aims to solve the technical problem of providing an open-close type vertical shaft fluid turbine power generation device aiming at the defects in the prior art. The device can be widely applied to the power generation of different fluid kinetic energies such as wind power generation, river water kinetic energy power generation, tidal water kinetic energy power generation, ocean water kinetic energy power generation and the like; the efficiency of capturing fluid energy by the vertical shaft impeller is improved, and the capacity of a single power generation machine is improved; the method is suitable for a plurality of fields and working scenes in the air and water; the adjustment capability of adapting to the change of working environment conditions is improved; the natural kinetic energy power generation capacity of the fluid is better utilized; the difficulty and the cost of manufacturing are reduced; the transportation, installation, operation and maintenance are easy; the impellers in water and in the air capture the energy of the fluid to be complementary, the power output is stable, the annual power generation time is prolonged, and the like.

The technical scheme adopted by the invention for solving the problems in the prior art is as follows:

an open-close type vertical shaft fluid turbine power generation device comprises an impeller, a generator and a bracket base. The generator is arranged on the bracket seat, and the impeller is arranged on a generator shaft and drives the generator shaft to rotate;

the impeller includes wheel hub and a plurality of blade, and a plurality of blade rotational symmetry and evenly distributed are on wheel hub's circumference, and the wheel hub cover is located on the generator shaft and is fastened.

According to the technical scheme, the blade comprises a blade frame and a blade plate, the blade plate is connected with the hub through the blade frame, the blade plate comprises a mesh plate and an opening and closing strip, the mesh plate is arranged on the blade frame, and the opening and closing strip is arranged on the mesh plate;

the leaf plates are divided into: fixed and adjustable forms;

fixed: the blade plate comprises a mesh plate and an opening and closing strip; the blade plates are not provided with rotating shafts, the blade plates are arranged and fixedly arranged on the blade frame along the radial direction of the impeller, and each mesh plate is provided with a plurality of opening and closing strips;

adjusting: the blade plate comprises a mesh plate, an eccentric shaft, a torsion spring and an opening and closing strip; the blade plates are arranged on the blade frame along the radial arrangement of the impeller, the blade plates are arranged on the blade frame through the eccentric shaft and can rotate around the eccentric shaft, the torsion spring is sleeved on the eccentric shaft, two ends of the torsion spring are respectively connected with the blade plates and the blade frame, and each mesh plate is provided with a plurality of opening and closing strips.

According to the technical scheme, the eccentric shaft is arranged in parallel with the impeller shaft, and is offset to one side of the vertical middle line of the blade plate, so that the blade plate is divided into two large plate surfaces and two small plate surfaces.

The frame of the blade frame is provided with a stop block and a stop nail, when the acting force of the blade plate by fluid is within a set range, the blade plate is abutted against the stop block by a torsion spring, the blade plate is level with the blade frame, and the stop block is used for positioning the normal working position of the blade plate; when the acting force of the vane exceeds the set range by the fluid, the vane overcomes the torsion of the torsion spring and rotates around the eccentric shaft to leave the stop block, the vane rotates to the adjusting working position between the stop block and the stop nail, the stop block and the stop nail control the rotation angle range of the vane within 90 degrees, the inclination of the vane can reduce the work of the fluid, and the purpose of adjusting the speed of the impeller is achieved.

According to the technical scheme, one or more blade plates are distributed on the blade frame; the bottom layer of the leaf plate is a mesh plate, and a plurality of opening and closing strips are fixed on the mesh plate.

The mesh plate is a plate with holes or a plate with meshes formed by fixing a mesh sheet on the frame, the mesh plate can allow fluid to freely pass through, and the mesh plate is used as a part of the blade plate and is sequentially arranged in the blade frame along the radial direction of the impeller.

According to the technical scheme, the opening and closing strip is provided with one or more linear dents, the opening and closing strip is divided into a fixed strip and an overturning strip, the length of the linear dents is equal to that of the opening and closing strip, and the opening and closing strip is easy to bend from the distribution line position of the linear dents;

the opening and closing strips are longitudinally arranged on the mesh plate, the length direction of the linear dents is also longitudinal, the length direction of the linear dents is parallel to the length direction of the generator shaft, the fixing strips are close to one side of the outer edge of the impeller, the turning strips are close to one side of the center of the impeller, the fixing strips are fixed on the mesh plate, the turning strips are in a free state, the opening and closing strips are sequentially arranged from outside to inside, and the opening and closing strips are connected without gaps;

according to the technical scheme, the linear dents on the opening and closing strip are replaced by a plurality of through holes which are arranged at intervals.

According to the technical scheme, 1 opening and closing strip and a part of mesh plates with corresponding areas on the back form an independent functional unit, the functional unit is the minimum work unit for capturing energy, a plurality of functional units are integrated into a leaf plate, the leaf plate forms blades on a blade frame, the functional units on the plurality of blades are in central rotational symmetry about the central axis of an impeller, the opening and closing strips in the functional units are longitudinally arranged on the mesh plates, a fixing strip is close to one side of the outer edge of the impeller, an overturning strip is close to one side of the center of the impeller, the fixing strip is fixed on the mesh plates, the overturning strip is in a free state, after the functional units are subjected to the acting force of fluid, each functional unit independently makes corresponding opening or shielding actions according to the position where the functional unit is located during movement, and the mutual matching of the opening and closing strips and the part of mesh plates with corresponding areas on the back is of the functional units is of great importance; when fluid flows to meet the opening and closing bar and then the mesh plate, under the action of fluid impact force, the opening and closing bar shields the mesh plate to prevent the fluid from passing through, and the mesh plate provides force for supporting; when the fluid flows first to meet the mesh plate and then to the opening and closing strip, the fluid passes through the mesh plate under the action of the fluid impact force, the turning strip of the opening and closing strip keeps parallel to the fluid flow direction at any time, the part of the mesh plate corresponding to the opening and closing strip is in an open state, the fluid passes through freely, and the mesh plate is only subjected to little resistance of the mesh wires.

According to the technical scheme, the mesh plate can also be manufactured by installing a silk screen on the frame.

According to the technical scheme, the upper part of the blade frame is connected with the main hub, the lower part of the blade frame is connected with the auxiliary hub, the main hub is arranged on the generator and is fixedly connected with the shaft of the generator, the auxiliary hub is arranged below the generator, and the auxiliary hub is sleeved on the stand column of the support base through the bearing.

According to the technical scheme, a top plate is arranged above each blade, the side edge of the top plate is fixedly connected with the top of a blade frame, the inner end edge of the top plate is fixedly connected with the top of a coaming, the outer end edge of the top plate is fixedly connected with the top of an outer plate, the outer plate is a part of the blade extending and bending outwards, a mesh plate is fixedly arranged on the outer plate, and an opening and closing strip is arranged on the inner side of the mesh plate of the outer plate; a bottom plate is arranged below each blade, the side edge of the bottom plate is fixedly connected with the bottom of the blade frame, the inner end edge of the bottom plate is fixedly connected with the bottom of the enclosing plate, and the outer end edge of the bottom plate is fixedly connected with the bottom of the outer plate; the top plate, the bottom plate, the coaming, the outer plate and the blades form a wind-water bucket in a surrounding manner, and the blades and the outer plate on the inner side of the wind-water bucket are provided with opening and closing strips; each blade around the impeller forms a wind-water bucket respectively. When the fluid flows to the wind and water bucket and meets the opening and closing strips and then the mesh plate, the opening and closing strips are tightly attached to the mesh plate under the action of the fluid impact force to shield the meshes of the mesh plate, the fluid is blocked by the opening and closing strips and the mesh plate, and the force of the fluid kinetic energy is the force for pushing the mesh plate to advance; when fluid flows to the wind and water bucket and meets the mesh plate firstly and then the opening and closing strip, the fluid is acted by fluid impact force, the fluid passes through the mesh plate, the fluid passing through the mesh plate continuously advances to meet the opening and closing strip, no object is supported and stressed behind the opening and closing strip, the overturning strip of the opening and closing strip is easy to bend and overturn along the distribution line of the linear dents, a fluid channel is opened, the opening and closing strip is in an opening state, and the fluid passes through the mesh plate and the opening and closing strip and is only subjected to very small resistance of mesh wires. Stress conditions of the rest parts: the top plate and the bottom plate are parallel to the direction of the fluid, the resistance is very small, the coaming plates are symmetrically arranged, the pressure difference between the left side and the right side is very small, the stress conditions of the outer plate and the connected blades are similar, the resultant force moment of the stress of the impeller is large, and the resultant force moment can push the impeller to rotate. When the impeller rotates, new blade plates continuously rotate to the stressed half side at one end of the central line, blade plates which complete work continuously rotate to the unstressed half side at the other end of the central line, and the fluid pushes the generator to generate electricity in cycles.

According to the technical scheme, the support base is replaced by an overwater floating platform and a support frame arranged on the floating platform, the impeller is arranged below the floating platform, the generator is arranged above the floating platform, and a generator shaft penetrates through the floating platform from top to bottom and is connected with a hub of the impeller; the floating platform floats on the water surface and bears a generator and the like.

The support frame is provided with a plurality of upright post slide bars and a plurality of reinforcing bars, the upright post slide bars are arranged along the periphery of the floating platform to reserve enough space for the rotation of the impeller, the floating platform is connected with the upright post slide bars in a sliding way, the lower ends of the upright post slide bars are fixedly connected with the water bottom, and the floating platform can move up and down along the upright post slide bars according to the fluctuation of the water surface.

According to the technical scheme, the number of the impellers is two, the two impellers are respectively arranged above the floating platform and below the water surface of the floating platform, the rotating directions of the upper impeller and the lower impeller are opposite, one of the impellers is connected with the coupler backwards through a pair of meshing gears, the coupler is connected with the generator shaft, a double-impeller generator is formed, and the double impellers with opposite rotating directions have better torque balance than the double impellers with the same rotating direction.

A power generation set comprises the plurality of open-close type vertical shaft fluid turbine power generation devices and a public platform, wherein the plurality of open-close type vertical shaft fluid turbine power generation devices are arranged around the public platform, the open-close type vertical shaft fluid turbine power generation devices are in rigid connection, and the open-close type vertical shaft fluid turbine power generation devices are also in rigid connection with the public platform.

A plurality of pairs of impellers are arranged on the periphery of the public platform, the rotation directions of the aerial impellers of the impellers and the adjacent aerial impellers are opposite, the rotation directions of the underwater impellers of the impellers and the adjacent underwater impellers are opposite, and the rotation directions of the aerial impellers and the underwater impellers in the same vertical direction are opposite. The rotation directions of the impellers are opposite to each other, so that the torque balance is facilitated.

The invention has the following beneficial effects:

1. the invention is suitable for different fluid kinetic energy power generation working scenes such as wind kinetic energy power generation, river kinetic energy power generation, tidal water kinetic energy power generation, ocean current water kinetic energy power generation and the like, and can better utilize natural kinetic energy of various fluids to generate power; 2. the efficiency of the vertical shaft impeller for capturing fluid energy is improved, the length and width of the blade are easy to increase, and especially the width of the blade can be multiple times of the width of the blade of the horizontal shaft, so that the single-machine capacity of the generator is improved; 3. the adjustable blade plate and the brake device are arranged, so that the adjusting capability of adapting to the change of a working environment is improved; 4. the wind energy and water energy combined cooperative work can be realized, the wind and water are complementary, the power output is stable, and the annual power generation time is prolonged; 5. the natural kinetic energy of the fluid is utilized to generate electricity, so that the construction cost of the dam is reduced; 6. the manufacturing process requirement is moderate, no horizontal shaft fan auxiliary guide mechanism exists, the construction difficulty and cost are low, and 7, the transportation, the installation and the operation maintenance are easier; 8. the vertical axis fan can capture all-directional wind energy and adapt to the environment with complex flow direction kinetic energy; 9. the opening and closing strip is very thin, the weight is very light, the turning force of the opening and closing strip is very small, the energy consumption is very small, and the efficiency is high. 10. The blade edge is not sharp, the pressure of the airflow generates small sudden change, the generated vortex disturbance is small, and therefore the noise is small.

Drawings

Fig. 1 is a schematic structural diagram of an open/close type vertical axis fluid turbine power generation device according to an embodiment of the invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a partial K view of FIG. 2;

FIG. 4 is a partial M view of FIG. 2;

FIG. 5 is a schematic view of part N of FIG. 4;

FIG. 6 is a schematic view of a movable blade plate and a blade frame according to an embodiment of the present invention;

FIG. 7 is a top view of the vane of FIG. 6 in an adjusted condition when the impeller speed is outside of a set range;

FIG. 8 is a schematic structural diagram of a second open/close type vertical axis fluid turbine power generation device according to the embodiment of the invention;

FIG. 9 is a top view of a third embodiment of the closed and open vertical axis fluid turbine power plant of the present invention;

FIG. 10 is a schematic view of portion E of FIG. 9;

FIG. 11 is a partial schematic view of F of FIG. 9;

FIG. 12 is a schematic structural diagram of a fourth open/close type vertical axis fluid turbine power generation device according to an embodiment of the invention;

FIG. 13 is a schematic structural diagram of an open-close type vertical shaft fluid turbine power generation device used in operation on a water bottom layer according to the fifth embodiment of the present invention;

FIG. 14 is a schematic structural view of an open-close type vertical axis fluid turbine power generation device for operation in suspended water according to a sixth embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a seventh open/close type vertical axis fluid turbine power generation device according to the embodiment of the invention;

FIG. 16 is a schematic structural diagram of a power generation module in an eighth embodiment of the present invention;

in the figure, 1-bracket base, 2-generator, 3-hub, 4-impeller, 5-blade frame, 6-eccentric shaft, 7-torsion spring, 8-blade plate, 9-impeller shaft, 10-generator shaft, 11-coupler, 12-blade, 13-opening and closing strip, 14-fixing strip, 15-turning strip, 16-linear dent, 17-block, 18-mesh plate, 19-common platform, 20-stop nail, 21-top plate, 22-bottom plate, 23-coaming plate, 24-air charging and discharging valve, 25-air discharging valve, 26-air bucket, 27-reinforcing rod, 28-floating platform, 29-machine room, 30-bulb cover, 31-upright slide rod, 32-anchor, 33-anchor chain, 34-baffle ring, 35-outer plate, 36-auxiliary hub and 37-functional unit.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 1 to 7, an open-close type vertical axis fluid turbine power generation device according to an embodiment of the present invention includes an impeller 4, a generator 2, and a support base 1, the generator 2 is disposed on the support base 1, the impeller 4 is disposed on a generator shaft 10, a hub 3 is connected to the generator shaft 10, and the impeller 4 drives the generator shaft 10 to rotate;

the impeller 4 comprises a hub 3 and a plurality of blades 12, the plurality of blades 12 are uniformly arranged on the hub 3 along the circumferential direction, and the hub 3 is sleeved on and fixed with the generator shaft 10; the generator 2 is a generating device which converts the mechanical energy of the impeller 4 into electric energy, the bottom of the bracket base 1 is fixed with an external foundation, the bracket base 1 can bear various stresses of the open-close type vertical shaft fluid wheel generating device, the impeller 4 is a power device which captures wind energy and water energy and converts the wind energy and the water energy into the mechanical energy, the hub 3 of the impeller 4 is fixed on the generator shaft 10, and the impeller 4 transmits the rotating mechanical energy to the generator 2.

Further, the blade 12 comprises a blade frame 5 and a blade plate 8, and the blade plate 8 is connected with the hub 3 through the blade frame 5; the blade plate 8 comprises a mesh plate 18 and an opening and closing bar 13, the mesh plate 18 is arranged on the blade frame 5, and the opening and closing bar 13 is arranged on the mesh plate 18. When the opening and closing bar 13 shields the mesh plate 18, the fluid is prevented from passing through, and the mesh plate 18 transmits force to the blade 12; when the opening and closing bar 13 is in an open state, the fluid freely passes through, the mesh plate 18 does not apply force to the blades 12, and the resultant force of the force applied to each blade of the impeller 4 pushes the impeller 4 to rotate.

The blades 8 are divided into two cases, one is a movable blade and the other is a fixed blade.

When the blade plate 8 is a movable blade plate, the blade plate 8 comprises a mesh plate 18, an eccentric shaft 6, a torsion spring 7 and opening and closing strips 13, the blade plate 8 is arranged on the blade frame 5 along the radial direction of the impeller 4, the blade plate 8 is arranged on the blade frame 5 through the eccentric shaft 6 and can rotate around the eccentric shaft 6, the torsion spring 7 is sleeved on the eccentric shaft 6, two ends of the torsion spring 7 are respectively connected with the blade plate 8 and the blade frame 5, and each blade plate 8 is provided with a plurality of opening and closing strips 13 fixed on the mesh plate 18;

when the blade plate 8 is a fixed blade plate, the blade plate 8 includes a mesh plate 18 and opening and closing bars 13, the plurality of opening and closing bars 13 are fixed to the mesh plate 18, and the blade plate 8 is fixed to the blade frame 5.

The blade frame 5 is a carrier for bearing the installation of the blade 8 and bears the stressed part of the blade 8.

Further, the blade frame 5 is a frame formed by connecting a plurality of crosspieces, a plurality of vertical baffles and a plurality of inclined baffles with each other, and is suitable for installing and working the blades 8.

The blade frame 5 is connected with the hub 3, the inside of the blade frame 5 is divided into a plurality of rectangular or polygonal frames which are adaptive to the shapes and the sizes of the movable blade plates 8 or the fixed blade plates 8, and the blade frame 5 can bear the force given by the blade plates 8.

Further, the eccentric shaft 6 is arranged in parallel with the axis of the impeller 4, the eccentric shaft 6 is offset on one side of the vertical middle line of the blade plate 8 to divide the blade plate 8 into two large and small rectangular plate surfaces, the eccentric shaft 6 is movably arranged on the upper crosspiece and the lower crosspiece of the blade frame 5, the large rectangle is arranged on one side of the direction of the stop block 17, and the small rectangle is close to one side of the outer edge of the impeller 4.

The mesh plates 18 are perforated plates or mesh plates formed by fixing mesh sheets to the side frames, the mesh plates 18 allow fluid to freely pass through, and the mesh plates 18 are arranged in the blade frame 5 in sequence in the radial direction of the impeller 4.

The torsion spring 7 is sleeved on the eccentric shaft 6, one end of the torsion spring 7 is fixed on the blade plate 8, the other end of the torsion spring 7 is fixed on the blade frame 5, the blade plate 8 is abutted against the stop block 17 by means of the torsion spring 7, when the pressure difference of the fluid to the large rectangle and the small rectangle is smaller than the torsion of the spring, the blade plate 8 is abutted against the stop block 17, when the pressure difference of the fluid to the large rectangle and the small rectangle is larger than the torsion of the spring, the torsion spring 7 deforms, the blade plate 8 overcomes the torsion spring force to rotate around the eccentric shaft 6 to leave the stop block 17, meanwhile, the rotation of the blade plate 8 weakens the action of the fluid force, and the regulation action of weakening the external force is achieved.

Further, be equipped with dog 17 and end position nail 20 on the frame of blade frame 5, dog 17 and end position nail 20 set up on blade frame 5 crosspiece, lamina 8 is by the effect of torsion spring 7 when no exogenic action and is close to dog 17, with the parallel and level of blade frame 5, dog 17 is used for the initial position of location lamina 8, perhaps sets for the operating position within the rotational speed scope, end position nail 20 and be used for controlling lamina 8 rotation angle scope within 90 degrees, prevent that the torsion spring 7 of lamina 8 from failing and influence adjacent lamina 8 work.

Furthermore, the opening and closing strip 13 is a rectangular strip, a linear dent 16 is arranged on the opening and closing strip 13, the opening and closing strip 13 is divided into a fixed strip 14 and a turnover strip 15, the length of the linear dent 16 is equal to that of the opening and closing strip 13, and the linear dent 16 is easy to bend from the line distribution position;

the opening and closing strips 13 are longitudinally arranged on the mesh plate 18, the length direction of the linear dents 16 is also longitudinal, the fixing strips 14 are close to one side of the outer edge of the impeller 4, the overturning strips 15 are close to one side of the center of the impeller 4, the fixing strips 14 are longitudinally fixed on the mesh plate 18, the overturning strips 15 are in a free state, the opening and closing strips 13 are sequentially and transversely arranged from the outer edge of the impeller 4 to the inside, and the opening and closing strips 13 are connected without gaps.

Furthermore, the position relationship between the opening and closing bars 13 and the mesh plates 18 is rotationally symmetrical about the central axis of the impeller, and the whole opening and closing bars 13 can be installed on all the mesh plates 18 of the impeller 4 only in the clockwise direction; or the whole opening and closing bar 13 can be installed on all the mesh plates 18 of the impeller 4 only in the counterclockwise direction. Prevent the mutual offset of stress caused by mixed loading. The opening and closing strip 13 is used for shielding or opening the holes on the mesh plate 18, so that the purpose of stopping or passing the fluid is achieved; when the impeller 4 is overlooked from top to bottom, clockwise rotation of the impeller 4 under force is called clockwise impeller, and anticlockwise rotation of the impeller 4 under force is called counterclockwise impeller. If the clockwise impeller is turned over up and down, the upper end face is turned to the lower end face, the clockwise impeller is changed, and if the counterclockwise impeller is turned over up and down, the upper end face is turned to the lower end face, the clockwise impeller is changed.

Further, the linear indents 16 on the opening-and-closing bar 13 are replaced with a plurality of through holes arranged at intervals, and are easily bent from the through hole distribution line positions.

Furthermore, the opening and closing strip 13 is any one or a plurality of composite of plastic sheets, rubber sheets and rubber and plastic sheets, and the opening and closing strip 13 is light in weight, thin in thickness and not easy to wrinkle.

In the second embodiment, as shown in fig. 8, the open-close type vertical axis fluid turbine power generation apparatus includes a dual hub impeller 4, a generator 2, and a support base 1, wherein the generator 2 is disposed on the support base 1, and an upper portion of a blade frame 5 of the dual hub impeller 4 is connected to a main hub 3 and a lower portion thereof is connected to a sub-hub 36. The main hub 3 is arranged above the generator 2 and is fixedly connected with the generator shaft 10, the auxiliary hub 36 is arranged below the generator 2, and the auxiliary hub 36 is sleeved on the upright post of the support base 1 through a bearing. Install the lamina tecti 8 on the blade frame 5, when double-hub impeller 4 drove generator shaft 10 and rotates, main hub 3 was to the generator transmission atress, and vice hub 36 passes through the bearing and rotates on the stand, and this double-hub impeller 4 has better mechanical properties, can adapt to more complicated exogenic action, better operating stability, and impeller 4 can be done more widely. The present embodiment is the same as the first embodiment except that the impeller and the related accessories are different.

In the third embodiment, as shown in fig. 9 to 11, a top plate 21 is disposed above the blade 12, a side edge of the top plate 21 is fixedly connected to the top of the blade frame, an inner end edge of the top plate 21 is fixedly connected to the top of the shroud 23, an outer end edge of the top plate 21 is fixedly connected to the top of an outer plate 35, the outer plate 35 is a portion of the blade 12 that extends and bends outward, the outer plate 35 includes a mesh plate 18 and an opening and closing bar 13, the mesh plate 18 of the outer plate 35 is fixedly disposed on the blade frame, and the opening and closing bar 13 is disposed inside the mesh plate 18 of the outer plate 35; a bottom plate 22 is arranged below the blade 12, the side edge of the bottom plate 22 is fixedly connected with the bottom of the blade frame, the inner end edge of the bottom plate 22 is fixedly connected with the bottom of the coaming 23, and the outer end edge of the bottom plate 22 is fixedly connected with the bottom of the outer plate 35. The top plate 21, the bottom plate 22, the coaming 23, the outer plate 35 and the blades 12 form an air and water bucket 26, and the opening and closing strips 13 are arranged on the outer plate 35 and the blades 12 inside the air and water bucket 26. Each blade 12 is formed with the same wind and water scoop 26 as the corresponding top and

bottom plates

21, 22 and

shroud

23, 35. The blades 12 around the impeller are formed into a plurality of wind and water scoops 26.

In the fourth embodiment, as shown in fig. 12, the fourth embodiment includes an impeller 4, a generator 2, a floating platform 28 and a support frame, the impeller 4 is disposed below the floating platform 28, the generator 2 is disposed above the floating platform 28, and the generator shaft 10 passes through the floating platform 28 from top to bottom and is connected to the hub 3 of the impeller 4; the floating platform 28 floats on the water surface and carries the generator 2, the impeller 4 and the like.

The holder includes a plurality of post slide rods 31 and a plurality of reinforcement rods 27. The upright post slide rods 31 are arranged along the periphery of the floating platform 28, enough space is reserved for the rotation of the impeller 4, the floating platform 28 is connected with the upright post slide rods 31 in a sliding mode, the lower ends of the upright post slide rods 31 are fixedly connected with a water bottom foundation, the floating platform 28 can move up and down along the upright post slide rods 31 according to the fluctuation of the water surface, and the baffle ring 34 allows the impeller 4 to have a certain distance from the bottom so as to prevent the impeller 4 from being damaged by touching the bottom.

Further, a machine room 29 is arranged on the floating platform 28, and the generator 2 is arranged in the machine room 29.

In the fifth embodiment, as shown in fig. 13, which is a schematic structural view of the present invention working on a water bottom layer, a machine room is replaced by a bulb cover 30, and a charging and discharging valve 24 and a discharging and feeding valve 25 are additionally arranged on a floating platform 28. The bulb cover 30 is used for preventing water from entering the generator 2, the air charging and discharging valve 24 and the water discharging valve 25 are additionally arranged for sinking and floating in the embodiment of the invention, when the device needs to sink, the air charging and discharging valve 24 and the water discharging valve 25 are opened, air in the floating platform 28 is discharged from the air charging and discharging valve 24, water enters from the water discharging and feeding valve 25, and the floating platform 28 sinks when buoyancy is reduced. When the device needs to float upwards, the water discharge and inlet valve 25 is opened, the floating platform 28 is externally inflated through the air charging and discharging valve 24, water in the floating platform 28 flows out from the water discharge and inlet valve 25, the floating platform 28 can float upwards when the buoyancy becomes larger, and equipment maintenance is facilitated. The rest is the same as in example four.

In the sixth embodiment, as shown in fig. 14, the present invention is schematically shown in the structure of the invention suspended in water by the anchor chain 33, and the support frame is replaced by the anchor chain 33, so that the present invention can be easily suspended in a position with a relatively large kinetic energy of flowing water, and the efficiency of capturing energy can be improved. The remainder is the same as in example five.

In the seventh embodiment, as shown in fig. 15, in the form of a double impeller, the number of impellers is two, and the two impellers are respectively arranged above and below the floating platform 28, one captures wind energy in the air, and the other captures kinetic energy of water in the water. If the upper impeller and the lower impeller are in the same rotating direction, the impeller shaft 9 can be connected with a generator shaft 10 through a coupler 11; if the upper impeller and the lower impeller rotate in different directions, one of the impeller shafts 9 needs to be added with a pair of meshing gears to change the rotating direction and then is connected with the generator shaft 10 through the coupler 11. The upper impeller and the lower impeller in different rotating directions have good torque offsetting capability, and the external stress condition is improved.

In an eighth embodiment, as shown in fig. 16, a power generation stack is disclosed, the power generation stack comprising a plurality of open-close vertical axis fluid turbine power generation devices and a common platform, the plurality of open-close vertical axis fluid turbine power generation devices being arranged around the common platform, each open-close vertical axis fluid turbine power generation device being rigidly connected to each other, each open-close vertical axis fluid turbine power generation device being rigidly connected to the common platform, the power generation stack being a combination of four open-close vertical axis fluid turbine power generation device embodiments of the present invention;

four open-close vertical axis fluid turbine generator embodiments are distributed around a common platform 19 with the impellers in pairs rotating in opposite directions. The wind impeller on the upper part and the water impeller on the lower part of the same generator have opposite rotating directions; the rotating directions of two adjacent wind impellers are opposite; the rotation directions of two adjacent water impellers are also opposite. Therefore, the upper moment and the lower moment among the impellers are balanced as much as possible, the overall moment is balanced, and the total torque is minimum.

In addition: in all embodiments, 1. Each impeller has 3 or more blades, and each blade has 1 or more blades; 2. the linear dents can be arranged more than 1 tightly, and the through holes arranged at intervals can also be arranged more than 1 tightly, so that the turning easiness is enhanced; 3. the impeller shaft and the generator shaft can be the same shaft, or the impeller shaft and the generator shaft are connected by a coupling; 4. the generator shaft is provided with a brake device, or the hub is provided with a brake device, so that the impeller can be conveniently braked during overspeed rotation and equipment maintenance, and the 5-single-impeller single-hub form can be decomposed into a single-impeller multi-hub form; the main hub in the form of the single-impeller main and auxiliary hubs can be divided into a plurality of hubs, and the auxiliary hubs can also be divided into a plurality of hubs, so that the height of the blade can be increased, and the mechanical property can be improved.

The working principle of the invention is as follows: the open-close type vertical shaft fluid wheel power generation device can be used for wind power generation and can also be used for water power generation. When the open-close type vertical shaft fluid turbine power generation device works, air flow or water flow flows to the impeller, the vertical shaft divides flowing fluid into a right part and a left part, and if the right fluid flows through the open-close strip and then the mesh plate, the fluid can push the open-close strip to be tightly attached to the mesh plate to shield holes of the mesh plate, and the fluid cannot pass through the open-close strip and the mesh plate and can provide large thrust for the open-close strip and the mesh plate; because the position relation of the mesh plate and the opening and closing strip is rotationally symmetrical about the central axis of the impeller, fluid on the left flows through the mesh plate firstly and then flows through the opening and closing strip, the fluid cannot be blocked when flowing through holes of the mesh plate, the fluid passing through the mesh plate continuously advances to meet the opening and closing strip, no object is supported and stressed behind the opening and closing strip, the overturning strip of the opening and closing strip is easy to bend and overturn along a linear dent distribution line, a fluid channel is opened, the opening and closing strip is in an open state, and the fluid passing through the mesh plate and the opening and closing strip does not bear large resistance but only has small resistance of mesh wires. The right side of the impeller is stressed greatly, the left side of the impeller is stressed slightly, the resultant torque of forces on two sides of the impeller to an impeller shaft is large, the resultant torque of fluid can push a mesh plate on the right side of the impeller to rotate and advance, the mesh plate transmits force to a blade frame, the blade frame transmits the force to a hub, the hub transmits the rotating force to a generator to generate electricity, the fluid continuously flows to push blades of the impeller to rotate to enter the right side under thrust, meanwhile, the blades which complete work doing enter the left side with small resistance, and the fluid pushes the generator to generate electricity repeatedly. The other assumption is that the right fluid passes through the mesh plate and then the opening and closing bar, and by the same reason, we can analyze that the assumption is opposite to the rotation direction of the impeller of the previous assumption, and the rest cases are the same.

We have two cases when looking down on the impeller from above the impeller shaft from above: one is that the opening and closing strip of the right half of the impeller is on the top, the mesh plate is on the bottom, the opening and closing strip of the left half is on the bottom, the mesh plate is on the top, the part near the center line is the transition line, the fluid pushes the impeller from different directions, the impeller only rotates clockwise, it is called as the clockwise impeller; the other is that the right half part of the impeller is provided with a lower opening and closing strip, the mesh plate is provided with an upper mesh plate, the left half part of the impeller is provided with a separate closing strip, the mesh plate is provided with a lower mesh plate, the part close to the central line is a transition line, fluid pushes the impeller from different directions, and the impeller only rotates anticlockwise and is called a counter-rotating impeller; the forward-rotating impeller rotates only in a clockwise direction and the reverse-rotating impeller rotates only in a counterclockwise direction regardless of the direction of the fluid flow from the periphery of the impeller to the impeller. The impeller is turned over up and down, the upper end face of the impeller is rotated to the lower end face, and when the lower end face is rotated to the upper end face, the clockwise rotation impeller becomes the counter-rotation impeller, or the counter-rotation impeller becomes the clockwise rotation impeller.

In conclusion, the river water kinetic energy power generation saves the construction cost of constructing the dam, is beneficial to protecting the ecological environment and is beneficial to the growth and the propagation of aquatic organisms; the condition of utilizing the water flow energy is reduced, the utilization range of the natural water flow energy in the river is expanded, and a lot of water flows without potential energy can generate electricity; the equipment is simple and efficient, the manufacturing requirement of the equipment is reduced, and the equipment cost is reduced; and the hydrodynamic energy conversion efficiency is high. The tidal power generation at present utilizes the larger tidal range potential energy in the rising tide and the falling tide to generate power, a dam needs to be built, the dam does not need to be built, the kinetic energy of the natural water flow in the rising tide and the falling tide is converted to generate power, and the construction cost for building the dam is saved. The ocean current energy water can generate power by kinetic energy, more stable kinetic energy of seawater flow exists in the submarine water channel and the strait, the kinetic energy of the ocean current energy is converted into power generation, the novel form of ocean current power generation is expanded, and the equipment is simple and efficient; the wind power generation is adopted, the energy capture efficiency of the vertical shaft impeller is improved, the single machine energy is improved, and the wind energy is captured in all directions; when the external force exceeds the normal working range, the rotation of the mesh plate weakens the action of the external force, achieves the regulation action of external force peak clipping, and improves the regulation capacity of adapting to the working environment; the natural kinetic energy of the fluid is better utilized, wind energy and water energy are created to jointly and cooperatively work, the power output is stable, the annual power generation time is prolonged, and the like; the opening and closing strip is light in weight and thin in thickness, and the opening and closing strip can be turned over easily; the opening and closing bars and the mesh plates are matched for use and are easy to expand, so that the capacity of capturing energy in each embodiment of the patent is strong; this patent is compared with the horizontal axis fan of present use, and the blade edge is not sharp-pointed, and the pressure of air current produces the abrupt change and diminishes, produces the vortex disturbance little to arouse small in noise.

The above are only preferred embodiments of the present invention, and it is needless to say that the scope of the present invention is not limited by these embodiments, and therefore, the present invention is still within the scope of the present invention by the equivalent changes made in the claims of the present invention.

Claims

1. An open-close type vertical shaft fluid turbine power generation device is characterized by comprising an impeller, a generator and a support base, wherein the generator is arranged on the support base, and the impeller is arranged on a generator shaft and drives the generator shaft to rotate; the impeller comprises a hub and a plurality of blades, the blades are uniformly arranged on the hub along the circumferential direction, and the hub is sleeved on the generator shaft;

the blade comprises a blade frame and a blade plate, and the blade plate is connected with the hub through the blade frame; the blade plate comprises a mesh plate, the mesh plate is arranged on the blade frame, and an opening and closing strip is arranged on the mesh plate.

2. The open-closed vertical axis fluid turbine power plant of claim 1, wherein the blades are rotationally symmetric about a central axis of rotation of the impeller;

the blade plate also comprises a rotating shaft and a torsion spring, the blade plate is arranged on the blade frame along the radial direction of the impeller, the blade plate is arranged on the blade frame through the rotating shaft and can rotate around the rotating shaft, the torsion spring is sleeved on the rotating shaft, and the torsion spring is respectively connected with the blade plate and the blade frame;

the rotating shaft is arranged in parallel with the impeller shaft and is offset at one side of the vertical middle line of the blade plate to separate the blade plate into two large plate surfaces and two small plate surfaces, and the rotating shaft is used as an eccentric shaft of the blade plate.

3. The open-close type vertical axis fluid turbine power generation device according to claim 2, wherein the frame of the vane frame is provided with a stopper and a stopper pin, when the vane is acted within a set range by the external force of the fluid, the torsion spring presses the vane against the stopper to make the vane flush with the vane frame, and the stopper is used for positioning the vane at a normal operating position; when the acting force of the blade plate by the fluid exceeds a set range, the blade plate overcomes the torsion of the torsion spring and rotates around the eccentric shaft to leave the stop block, the blade plate rotates to an adjusting working position between the stop block and the stop nail, and the stop nail is used for controlling the rotating angle range of the blade plate within 90 degrees.

4. The open-close type vertical axis fluid turbine generator according to claim 1, wherein the open-close strip is provided with linear dents, and the open-close strip is divided into a fixed strip and a turning strip, and is easily bent from the distribution line position of the linear dents;

the opening and closing strips are longitudinally arranged on the mesh plate, the length direction of the linear dents is also longitudinal, the fixing strips are close to one side of the outer edge of the impeller, the overturning strips are close to one side of the axle center of the impeller, the fixing strips are fixed on the mesh plate, the overturning strips are in a free state, the opening and closing strips are sequentially arranged from outside to inside, and the opening and closing strips are connected without gaps.

5. The open-closed vertical axis fluid turbine power plant of claim 4, wherein the linear indentations on the open-close bars are replaced by through holes spaced along a straight line.

6. The open-close type vertical axis fluid turbine power generation device according to claim 1, wherein 1 open-close strip and a part of the mesh plate with a corresponding area at the back form an independent functional unit, the functional unit is a minimum work unit for capturing energy, a plurality of functional units are integrated into a blade plate, the blade plate forms blades on a blade frame, the functional units on the blades are rotationally symmetrical around the central axis of the impeller, the open-close strips in the functional units are longitudinally arranged on the mesh plate, a fixing strip is close to one side of the outer edge of the impeller, an overturning strip is close to one side of the center of the impeller, the fixing strip is fixed on the mesh plate, the overturning strip is in a free state, and after the functional units are subjected to the acting force of fluid, each functional unit independently performs corresponding opening or shielding actions according to the position where the functional unit is located during movement.

7. An open-closed vertical axis fluid turbine power plant as claimed in claim 1, wherein the blade frame is connected at the upper part to a main hub and at the lower part to an auxiliary hub, the main hub being arranged above the generator and being fast with the generator shaft; the auxiliary hub is arranged below the generator and sleeved on the upright post of the bracket base through a bearing.

8. The open-close type vertical axis fluid turbine power generation device according to claim 1, wherein a top plate is provided above each blade, the side edge of the top plate is fixedly connected with the top of the blade frame, the inner end edge of the top plate is fixedly connected with the top of the coaming, the outer end edge of the top plate is fixedly connected with the top of the outer plate, a mesh plate is fixedly provided on the outer plate, and an opening and closing bar is provided inside the mesh plate of the outer plate; a bottom plate is arranged below each blade, the side edge of the bottom plate is fixedly connected with the bottom of the blade frame, the inner end edge of the bottom plate is fixedly connected with the bottom of the coaming, and the outer end edge of the bottom plate is fixedly connected with the bottom of the outer plate; the top plate, the bottom plate, the coaming, the outer plate and the blades are encircled to form a wind-water bucket, and the blades on the inner side of the wind-water bucket are provided with opening and closing strips.

9. The open-close vertical axis fluid turbine power plant of claim 1, wherein the support base is replaced by a floating platform and a support frame provided on the floating platform, the impeller is provided below the floating platform, the generator is provided above the floating platform, and the generator shaft passes through the floating platform from top to bottom and is connected to a hub of the impeller; the floating platform is used for floating on the water surface;

the supporting frame is provided with a plurality of upright post slide bars which are arranged along the circumferential direction of the floating platform, the floating platform is connected with the upright post slide bars in a sliding way, the lower ends of the upright post slide bars are fixedly connected with the water bottom, and the floating platform can move up and down along the upright post slide bars according to the fluctuation of the water surface.

10. An open-closed vertical axis fluid turbine power plant according to claim 9, wherein the number of impellers is two, arranged above and below the floating platform, respectively, both impellers being connected to the generator shaft by couplings, both impellers being located above and below the generator, respectively.

11. A power generation plant comprising a plurality of open-closed vertical axis fluid turbine power generation units according to any one of claims 1 to 10 and a common platform, the plurality of open-closed vertical axis fluid turbine power generation units being disposed about the common platform.