CN111852724A

CN111852724A - Water flow power generation device

Info

Publication number: CN111852724A
Application number: CN201910358398.9A
Authority: CN
Inventors: 桑超
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-10-30

Abstract

The invention discloses a water flow power generation device which comprises a main floating body, an angle adjusting plate, a power generator, a speed-up gear box, a universal joint, a transmission steel rope and a water turbine, wherein the angle adjusting plate is freely and rotatably arranged at the rear end of the main floating body through a rotating shaft, the rotating shaft is arranged along the transverse direction of the main floating body, the power generator and the speed-up gear box are arranged on the top surface of the angle adjusting plate, an output shaft of the speed-up gear box is connected with an input shaft of the power generator, an input shaft of the speed-up gear box is connected with one end of the transmission steel rope through the universal joint, the other end of the transmission steel rope is connected with the water turbine positioned behind the main. The water flow power generation device can generate power in natural water flow, has the advantages of reasonable structure, good equipment operation stability, high energy conversion rate, energy conservation and environmental protection, is a novel clean and pollution-free power generation device, and has good popularization and use values.

Description

Water flow power generation device

Technical Field

The invention relates to the technical field of power generation equipment, in particular to a water flow power generation device.

Background

Due to the transition mining of human beings, the crisis of energy sources such as petroleum and coal is getting more serious, and with the improvement of the awareness of human environmental protection, people are continuously searching renewable clean energy sources such as wind energy and solar energy which can replace non-renewable resources such as petroleum and coal. The flowing water has kinetic energy, the kinetic energy of the water flow is concentrated in energy density and abundant in storage amount, and the water flow is an rare clean energy source, so that the development and utilization of the kinetic energy of the water flow of rivers, ditches and the like are of great significance to energy conservation and emission reduction and sustainable development of energy.

At present, the utilization of water flow energy is mainly to generate electricity through a hydropower station, and the hydropower station needs to build a hydraulic building centralized water head to ensure that water flow has a certain fall, so that the gravitational potential energy of the water flow is converted into the mechanical energy of a water turbine, and then the mechanical energy is converted into electric energy through a generator to generate electricity. Therefore, the existing hydropower station generating set is not suitable for generating electricity in natural water flow, has great limitation in use and has high cost for building hydraulic engineering.

Therefore, how to design a power generation device capable of generating power in natural water flow is a problem to be solved urgently.

Disclosure of Invention

The invention aims to at least solve the technical problems in the prior art, and particularly provides a water flow power generation device which can generate power in natural water flow, has a reasonable structure, good equipment operation stability, high energy conversion rate, energy conservation and environmental protection, is a novel clean and pollution-free power generation device, and has good popularization and use values.

In order to achieve the above purpose, the invention provides a water current power generation device, which comprises a main floating body, an angle adjusting plate, a power generator, a speed-up gear box, a universal joint, a transmission steel rope and a water turbine, wherein the angle adjusting plate is freely rotatably installed at the rear end of the main floating body through a rotating shaft, the rotating shaft is arranged along the transverse direction of the main floating body, the power generator and the speed-up gear box are installed on the top surface of the angle adjusting plate, an output shaft of the speed-up gear box is connected with an input shaft of the power generator, an input shaft of the speed-up gear box is connected with one end of the transmission steel rope through the universal joint, the other end of the transmission steel rope is connected with the water turbine positioned behind the main floating body, and the transmission steel rope is used for transmitting the rotation motion of the.

When the water flow power generation device is used, the water flow power generation device is placed in water flow with a certain flow velocity, the main floating body is fixed to the water bottom or the shore through the anchor chain, the main floating body is placed on the upstream of the water flow, the front end of the main floating body faces the water flow, the water turbine is placed on the downstream of the water flow, the water flow has certain kinetic energy, the water turbine drives the water turbine to rotate through the water flow, the water turbine converts the kinetic energy of the water flow into mechanical energy, the water turbine drives the speed-increasing gear box to rotate through the transmission steel rope and the universal joint, the speed-increasing gear box increases the rotational motion of the water turbine and then transmits the rotational motion of the water turbine to the power generator, and.

The transmission steel rope is connected with the water turbine to transmit power, and the transmission steel rope has certain flexibility in any direction, so that certain resettable deformation can be generated in any direction, the water turbine can be parallel to the water surface as much as possible, the impact force of water flow on the uppermost part and the lowermost part of the water turbine is basically consistent when the water turbine works, and better energy conversion and energy transmission effects are achieved; in addition, because the instability of water flow, under the natural working state, the main floating body can be influenced by waves and swing, if the water turbine is connected through the conventional rigid transmission shaft, the main floating body and the water turbine can be influenced mutually, the water turbine is forced to swing, the connecting parts such as bearings at the two ends of the transmission shaft are easy to damage after the water turbine is used for a long time, and the transmission steel rope has a certain deformation range, so that the influence of the main floating body on the water turbine can be reduced within a certain range, the damage of the instability of the water flow to the connecting parts is reduced, the service life of the whole power generation device is effectively prolonged, and the maintenance cost is reduced. Through the cooperation of the universal joint and the transmission steel rope, the impact damage to parts such as the bearing can be better reduced when the main floating body freely swings and swings. In addition, the generator and the speed-up gear box are arranged on the angle adjusting plate, and the angle adjusting plate can be freely rotatably arranged at the rear end of the main floating body through the rotating shaft, so that the angle adjusting plate can drive the generator and the speed-up gear box arranged above the angle adjusting plate to freely rotate in a vertical plane around the rotating shaft, and the self-adaption flexible adjustment of the angle of the input shaft of the speed-up gear box is realized. When waves come in front of the main floating body, the main floating body can float up and down from front to back, the angle adjusting plate makes corresponding front-back swing change relative to the main floating body to offset the instability of the main floating body, the angle of transmission devices such as the transmission steel rope and the universal joint relative to the horizontal plane is stable, the angle adjusting plate ensures that the transmission devices such as the transmission steel rope and the universal joint cannot change with the angle of the horizontal plane due to the fact that the transmission devices such as the transmission steel rope and the universal joint float from front to back, power transmission and conversion are stable, and the service life of each transmission part is effectively prolonged; in addition, due to the instability of the water flow speed, the water turbines are stressed differently due to the water flows with different flow speeds, the angles of the input shafts of the speed-up gear boxes relative to the horizontal plane are different due to the fact that the water turbines are stressed differently, the angles of the input shafts of the speed-up gear boxes relative to the horizontal plane can be freely adjusted through the angle adjusting plates, therefore, the adjusting force of the universal joints is reduced, and the water turbines are guaranteed to stably provide power for the generator at uniform speed to the greatest extent.

Preferably, angle limiting mechanisms are symmetrically arranged on two sides of the angle adjusting plate on the main floating body, arc-shaped grooves are vertically formed in the angle limiting mechanisms, arc-shaped convex blocks matched with the arc-shaped grooves are arranged at two ends of the angle adjusting plate, and the arc-shaped convex blocks are inserted into the arc-shaped grooves. The rotation of the angle adjusting plate is limited through the angle limiting mechanism, so that the rotation angle of the angle adjusting plate is limited, and the problem that the power transmission stability is influenced by the fact that the angle of the input shaft and the transmission steel rope of the speed-up gear box is too large due to the fact that the angle adjusting plate rotates too much is avoided.

Preferably, two ends of the arc-shaped groove are provided with buffering devices. The upper dead point and the lower dead point are limited and buffered when the angle adjusting plate rotates through the buffering device, so that the impact of equipment is reduced, the stability of power transmission is ensured, and the service life of the equipment is prolonged.

Preferably, rivers power generation facility still includes rigid drive shaft and is used for supporting rigid drive shaft's rotatory strutting arrangement, rotatory strutting arrangement fixed mounting be in on the angle adjusting plate, rigid drive shaft's one end with speed-increasing gear box's input shaft, rigid drive shaft's the other end with the universal joint is connected, rigid drive shaft runs through rotatory strutting arrangement just can freely rotate in the rotatory strutting arrangement. Through set up the rigid drive shaft between speed-up gear's input shaft and universal joint, impact to the speed-up gear input shaft when can effectively slow down the universal joint transmission to effectively prolong speed-up gear's life, support the rigid drive shaft through rotatory strutting arrangement, make the transmission of rigid drive shaft more steady.

Preferably, the water current power generation device further comprises an auxiliary floating body, a bearing is sleeved on a position, close to the water turbine, of the transmission steel rope, the transmission steel rope can freely rotate in the bearing, a steel wire rope is arranged on the auxiliary floating body, and a free end of the steel wire rope is fixedly connected with the outer wall of the bearing. The auxiliary floating body and the steel wire rope play a certain role in lifting and supporting the transmission steel wire rope and the water turbine, so that the over-deep sinking depth of the water turbine caused by too small water flow impact force is avoided in the canal with reduced water flow velocity; in addition, the underwater depth of the water turbine can be controlled by lifting the steel wire rope, the water turbine can not keep the same flow velocity all the year round under the consideration of the water flow velocity in nature, the water turbine normally works underwater, when the water flow velocity is larger than the ideal flow velocity due to seasons or natural environment changes, the rotating speed of the water turbine is too high, the steel wire rope can be tightened through the auxiliary floating body to enable the part of the water turbine to be away from the water surface to achieve the purpose of reducing the rotating speed, and the rotating speed of the water turbine can be adjusted within a certain range under the change condition of the water flow.

Further, a winch is arranged on the auxiliary floating body, the steel wire rope is wound on the winch, and the non-free end of the steel wire rope is fixedly connected with the winch. The winch can realize automatic winding and unwinding of the steel wire rope and adjustment of the length of the steel wire rope, so that automatic adjustment of the depth of the water turbine is realized.

Furthermore, the auxiliary floating body comprises a first floating body and a second floating body which are symmetrically arranged, and a connector for connecting the first floating body and the second floating body, the first floating body, the second floating body and the connector jointly form an inverted concave structure, the top of the connector is provided with the winch, the free end of the steel wire rope penetrates through the connector and the outer wall of the bearing is fixedly connected, and the first floating body, the second floating body and the connector are surrounded with a containing space for containing the water turbine. Through setting the auxiliary floating body to "concave" font structure for form the accommodation space that can hold the hydraulic turbine between auxiliary floating body and the surface of water, be convenient for realize promoting the hydraulic turbine part or whole to the surface of water on, not only conveniently realized the control to the hydraulic turbine degree of depth, also can conveniently promote the hydraulic turbine to the surface of water simultaneously at any time, be convenient for remove this rivers power generation facility to the waters of other needs.

Preferably, the hydraulic turbine includes that center pin, circumference equipartition are in epaxial blade of center pin with enclose to establish the casing that blade outlying both ends run through, the one end of blade with the outer wall fixed connection of center pin, the other end of blade with the inner wall fixed connection of casing, the both ends of casing are equipped with rivers entry and rivers export respectively, the axial tangent plane of casing is isosceles trapezoid, and the diameter of rivers entry is greater than the diameter of rivers export. Through setting the hydraulic turbine to above-mentioned structure, rivers entry is greater than the rivers export for rivers can the full action in the hydraulic turbine inside, impact hydraulic turbine blade, drive the rotatory work of doing of hydraulic turbine, thereby drive the generator electricity generation through transmission steel cable and step-up gear box, effectively improve the seizure and the conversion of hydraulic turbine to rivers kinetic energy, improve the generating efficiency.

Preferably, the turbine is made of a carbon fiber material. Carbon fiber material hardness is high, can bear the powerful impact of rivers, and is difficult for corroding and warp, and carbon fiber material light in weight can effectively alleviate the weight of hydraulic turbine, reduces the requirement to the velocity of flow of rivers for rivers power generation facility can adapt to the lower waters of the velocity of flow of rivers better, has expanded rivers power generation facility's application scope.

Preferably, the main floating body is a boat-shaped structure with a hollow interior. Through setting main body to inside hollow ship type structure, not only increased the buoyancy of main body to can effectively reduce the volume of main body, ship type structure makes the resistance of the rivers that main body received little moreover, can effectively reduce the main body and rock on the surface of water, thereby makes whole transmission process more steady among the water flow power generation device, improves the holistic life of generating efficiency and device.

According to the scheme, the invention provides a water flow power generation device which comprises a main floating body, an angle adjusting plate, a power generator, a speed-up gear box, a universal joint, a transmission steel rope and a water turbine, wherein the angle adjusting plate is freely and rotatably mounted at the rear end of the main floating body through a rotating shaft, the rotating shaft is arranged along the transverse direction of the main floating body, the power generator and the speed-up gear box are mounted on the top surface of the angle adjusting plate, an output shaft of the speed-up gear box is connected with an input shaft of the power generator, an input shaft of the speed-up gear box is connected with one end of the transmission steel rope through the universal joint, the other end of the transmission steel rope is connected with the water turbine positioned behind the main floating body, and the transmission steel rope is used for transmitting the rotation motion of the water. Because rivers have certain kinetic energy, drive the hydraulic turbine rotation through the rivers, the hydraulic turbine turns into mechanical energy with the kinetic energy of rivers, and the hydraulic turbine drives the step-up gear box rotation through transmission steel cable and universal joint, and the step-up gear box transmits the generator after carrying out the rotational motion with the hydraulic turbine to the rotatory mechanical energy of hydraulic turbine turns into the electric energy through the generator and generates electricity. The water flow power generation device can generate power in natural water flow, has the advantages of reasonable structure, good equipment operation stability, high energy conversion rate, energy conservation and environmental protection, is a novel clean and pollution-free power generation device, and has good popularization and use values.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a water current power generation apparatus according to a preferred embodiment of the present invention;

FIG. 2 is a schematic top view of a water current power plant according to a preferred embodiment of the present invention;

fig. 3 is a schematic structural view of an auxiliary floating body of a water current power generation apparatus according to a preferred embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The invention provides a water flow power generation device, as shown in fig. 1-2, the water flow power generation device comprises a main floating body 1, an angle adjusting plate 3, a power generator 4, a speed-up gear box 5, a universal joint 6, a transmission steel rope 7 and a water turbine 8, wherein the angle adjusting plate 3 is freely rotatably installed at the rear end of the main floating body 1 through a rotating shaft 2, the rotating shaft 2 is arranged along the transverse direction of the main floating body 1, the power generator 4 and the speed-up gear box 5 are installed on the top surface of the angle adjusting plate 3, an output shaft of the speed-up gear box 5 is connected with an input shaft of the power generator 4, an input shaft of the speed-up gear box 5 is connected with one end of the transmission steel rope 7 through the universal joint 6, the other end of the transmission steel rope 7 is connected with the water turbine 8 positioned behind the main floating.

When the water flow power generation device is used, the water flow power generation device is placed in water flow with a certain flow velocity, the main floating body 1 is fixed through the anchor chain, the other end of the anchor chain is fixed at the water bottom or the shore, the main floating body 1 is placed at the upstream of the water flow, the front end of the main floating body 1 faces the water flow, the water turbine 8 is placed at the downstream of the water flow, the water flow has certain kinetic energy, the water turbine 8 is driven to rotate through the water flow, the water turbine 8 converts the kinetic energy of the water flow into mechanical energy, the water turbine 8 drives the speed-increasing gear box 5 to rotate through the transmission steel rope 7 and the universal joint 6, the speed-increasing gear box 5 increases the rotational motion of the water turbine 8 and then transmits the rotational motion to the power generator 4, and therefore.

Specifically, in this embodiment, the rear end of main body 1 is equipped with the recess, and the recess runs through main body 1 from last to down, is equipped with angle adjusting plate 3 in the recess, and 2 levels of pivot transversely run through angle adjusting plate 3, and the both ends of pivot 2 are connected with the main body 1 of recess both sides. Two ends of the rotating shaft 2 are fixed on the main floating bodies 1 at two sides of the groove, and the angle adjusting plate 3 can rotate around the rotating shaft 2; or the angle adjusting plate 3 is fixedly connected with the rotating shaft 2, and two ends of the rotating shaft 2 are rotatably connected with the main floating body 1.

Specifically, the transmission steel rope 7 is a steel rope with a certain torque, and the length and the diameter of the steel rope are matched according to actual conditions such as specific power generation power.

The transmission steel rope 7 is connected with the water turbine 8 to transmit power, and the transmission steel rope 7 has certain flexibility in any direction, so that certain self-resettable deformation can be generated in any direction, the water turbine 8 can be parallel to the water surface as much as possible, the impact force of water flow on the uppermost part and the lowermost part of the water turbine 8 during working is basically consistent, and better energy conversion and energy transmission effects are achieved; in addition, because the instability of water flow, under the natural working condition, the main floating body 1 can be influenced by waves and swings, if the water turbine 8 is connected through a conventional rigid transmission shaft, the main floating body 1 and the water turbine 8 can be influenced mutually, the water turbine 8 is forced to swing, connecting parts such as bearings 13 at two ends of the transmission shaft are easily damaged after long time, and the transmission steel rope 7 has a certain deformation range, so that the influence of the main floating body 1 on the water turbine 8 can be relieved within a certain range, the damage of the instability of the water flow to each connecting part is reduced, the service life of the whole power generation device is effectively prolonged, and the maintenance cost is reduced. Through the universal joint 6 and the transmission steel rope 7, impact damage to parts such as a bearing of the speed-up gear box 5 can be reduced better when the main floating body 1 swings freely. In addition, the generator 4 and the speed-up gear box 5 are arranged on the angle adjusting plate 3, and the angle adjusting plate 3 is freely rotatably arranged at the rear end of the main floating body 1 through the rotating shaft 2, so that the angle adjusting plate 3 can drive the generator 4 and the speed-up gear box 5 which are arranged above the angle adjusting plate to freely rotate in a vertical plane around the rotating shaft 2, and the self-adaption flexible adjustment of the angle of the input shaft of the speed-up gear box 5 is realized. When waves come in front of the main floating body 1, the main floating body 1 can float up and down from front to back, the angle adjusting plate 3 correspondingly swings back and forth relative to the main floating body 1 to counteract the instability of the main floating body 1, the transmission devices such as the transmission steel rope 7 and the universal joint 6 are stable in angle relative to the horizontal plane, and the angle adjusting plate 3 ensures that the transmission devices such as the transmission steel rope 7 and the universal joint 6 cannot change in angle with the horizontal plane due to the fact that the transmission devices such as the transmission steel rope 7 and the universal joint 6 float from front to back, so that power transmission and conversion are stable, and the service life of each transmission part is effectively prolonged; in addition, because of the instability of the water flow speed, the water flow with different flow speeds can cause different stress of the water turbine 8, the angle of the input shaft of the speed-increasing gear box 5 relative to the horizontal plane is different when the stress of the water turbine 8 is different, and the angle of the input shaft of the speed-increasing gear box 5 relative to the horizontal plane can be freely adjusted through the angle adjusting plate 3, so that the adjusting force of the universal joint 6 is reduced, and the water turbine 8 is ensured to stably provide power for the generator 4 at a constant speed as far as possible.

In this embodiment, 4 angle limiting mechanisms 9 are symmetrically arranged on two sides of the angle adjusting plate 3 on the main floating body 1, an arc-shaped groove 901 is vertically arranged on the angle limiting mechanisms 9, arc-shaped protrusions 301 matched with the arc-shaped groove 901 are arranged at two ends of the angle adjusting plate 3, and the arc-shaped protrusions 301 are inserted into the arc-shaped groove 901. Thus, the angle adjusting plate 3 can only freely rotate in a certain angle in a vertical plane when rotating around the rotating shaft 2. The rotation of the angle adjusting plate 3 is limited through the angle limiting mechanism 9, so that the rotation angle of the angle adjusting plate 3 is limited, and the problem that the power transmission stability is influenced by the fact that the input shaft of the speed-increasing gear box 5 and the transmission steel rope 7 are too large in angle due to the fact that the angle adjusting plate 3 rotates too much is avoided.

In the present embodiment, both ends of the arc-shaped groove 901 are provided with the buffer 902. Carry out the spacing buffering of top dead center and bottom dead center when angle adjusting plate 3 rotates through buffer 902, reduce the impact of equipment, guarantee power transmission's stability and extension equipment's life. Specifically, in this embodiment, the buffer 902 is a spring, one end of the spring is fixedly connected to one end of the arc-shaped groove 901, the other end of the spring is a free end, and the free end of the spring extends toward the middle of the arc-shaped groove 901.

In this embodiment, the water current power generation device further includes a rigid transmission shaft 10 and a rotation support device 11 for supporting the rigid transmission shaft 10, the rotation support device 11 is fixedly mounted on the angle adjustment plate 3, one end of the rigid transmission shaft 10 is connected with the input shaft of the speed-increasing gear box 5, the other end of the rigid transmission shaft 10 is connected with the universal joint 6, and the rigid transmission shaft 10 penetrates through the rotation support device 11 and can freely rotate in the rotation support device 11. Through set up rigid drive shaft 10 between the input shaft at increasing gear box 5 and universal joint 6, impact to increasing gear box 5 input shaft when can effectively slow down the transmission of universal joint 6 to effectively prolong increasing gear box 5's life, support rigid drive shaft 10 through rotatory strutting arrangement 11, make rigid drive shaft 10's transmission more steady.

In the embodiment, the water current power generation device further comprises an auxiliary floating body 12, a bearing 13 is sleeved on a position, close to the water turbine 8, of the transmission steel rope 7, the transmission steel rope 7 can freely rotate in the bearing 13, a steel wire rope 14 is arranged on the auxiliary floating body 12, and the free end of the steel wire rope 14 is fixedly connected with the outer wall of the bearing 13. The auxiliary floating body 12 and the steel wire rope 14 play a certain role in lifting and supporting the transmission steel rope 7 and the water turbine 8, and the over-deep sinking depth of the water turbine 8 caused by too small water flow impact force is avoided in the canal with small water flow velocity; in addition, the depth of the water turbine 8 under water can be controlled by lifting the steel wire rope 14, the situation that the water flow speed in nature cannot keep the same flow speed all the year round is considered, the water turbine 8 normally works under water, when the water flow speed is larger than the ideal flow speed due to seasons or natural environment changes, the rotating speed of the water turbine 8 is too high, the steel wire rope 14 can be tightened through the auxiliary floating body 12 to enable the water turbine 8 to partially leave the water surface to achieve the purpose of reducing the rotating speed, and the rotating speed of the water turbine 8 can be adjusted within a certain range under the changing condition of the water flow speed. When the auxiliary floating body is used specifically, the auxiliary floating body 12 is also fixed through an anchor chain, and the other end of the anchor chain is fixed at the water bottom or the shore.

In this embodiment, the auxiliary floating body 12 is provided with a winch 15, the wire rope 14 is wound around the winch 15, and the non-free end of the wire rope 14 is fixedly connected to the winch 15. The winch 15 can realize automatic winding and unwinding of the steel wire rope 14, and the length of the steel wire rope 14 is adjusted, so that the automatic adjustment of the depth of the water turbine 8 is realized.

In this embodiment, the auxiliary floating body 12 includes a first floating body 121 and a second floating body 122 symmetrically disposed, and a connecting body 123 connecting the first floating body 121 and the second floating body 122, the first floating body 121, the second floating body 122 and the connecting body 123 together form an inverted "concave" structure, the top of the connecting body 123 is provided with a winch 15, the free end of the steel wire rope 14 penetrates through the connecting body 123 and is fixedly connected with the outer wall of the bearing 13, and an accommodating space for accommodating the water turbine 8 is surrounded by the first floating body 121, the second floating body 122 and the connecting body 123. Through setting auxiliary floating body 12 to "concave" font structure for form the accommodation space that can hold hydraulic turbine 8 between auxiliary floating body 12 and the surface of water, be convenient for realize 8 parts of hydraulic turbine or whole promote to the surface of water on, not only conveniently realized the control to the 8 degree of depth of hydraulic turbine, also can conveniently promote hydraulic turbine 8 to the surface of water simultaneously at any time, be convenient for remove this rivers power generation facility to the waters of other needs. Specifically, the first and

second floats

121 and 122 and the connection body 123 may be an integrated structure, or a split structure assembled by connection members to form the auxiliary float 12.

In this embodiment, hydraulic turbine 8 includes that center pin, circumference equipartition are at the epaxial blade of center pin and enclose to establish the casing that runs through at the blade outlying both ends, the one end of blade and the outer wall fixed connection of center pin, the other end of blade and the inner wall fixed connection of casing, the both ends of casing are equipped with rivers entry and rivers export respectively, the axial tangent plane of casing is isosceles trapezoid, and the diameter of rivers entry is greater than the diameter of rivers export. Through setting hydraulic turbine 8 to above-mentioned structure, rivers entry is greater than the rivers export for the rivers can fully act on in hydraulic turbine 8 inside, impact hydraulic turbine 8 blades, drive the rotatory work of doing of hydraulic turbine 8, thereby drive generator 4 electricity generation through transmission steel cable 7 and step-up gear 5, effectively improve hydraulic turbine 8's seizure and conversion to rivers flow, improve the generating efficiency.

In the present embodiment, the water turbine 8 is made of a carbon fiber material. Carbon fiber material hardness is high, can bear the powerful impact of rivers, and is difficult for corroding and warp, and carbon fiber material light in weight can effectively alleviate 8's of hydraulic turbine weight, reduces the requirement to the velocity of water flow for rivers power generation facility can adapt to the lower waters of the velocity of water flow better, has expanded rivers power generation facility's application scope.

In the present embodiment, the main float 1 has a boat-shaped structure with a hollow interior. Through setting main body 1 to inside hollow ship type structure, not only increased main body 1's buoyancy to can effectively reduce main body 1's volume, the ship type structure makes the resistance of the rivers that main body 1 received little moreover, can effectively reduce main body 1 and rock on the surface of water, thereby makes whole transmission process more steady among the water flow power generation facility, improves the holistic life of generating efficiency and device.

In the present embodiment, the generator 4 is a direct drive generator; the water flow power generation device also comprises an electric energy storage unit which is used for storing the electric energy generated by the generator 4 and converting the electric energy into standard voltage electric power suitable for external electric equipment so as to supply power to the external electric equipment. The specific electric energy storage and conversion technology is the same as the wind power generation technology, belongs to the prior art in the field, and is not described herein again.

According to the scheme, the invention provides a water flow power generation device which comprises a main floating body 1, an angle adjusting plate 3, a power generator 4, a speed-increasing gear box 5, a universal joint 6, a transmission steel rope 7 and a water turbine 8, wherein the angle adjusting plate 3 is freely rotatably installed at the rear end of the main floating body 1 through a rotating shaft 2, the rotating shaft 2 is arranged along the transverse direction of the main floating body 1, the power generator 4 and the speed-increasing gear box 5 are installed on the top surface of the angle adjusting plate 3, an output shaft of the speed-increasing gear box 5 is connected with an input shaft of the power generator 4, an input shaft of the speed-increasing gear box 5 is connected with one end of the transmission steel rope 7 through the universal joint 6, the other end of the transmission steel rope 7 is connected with the water turbine 8 located behind the main floating body 1, and the. Because rivers have certain kinetic energy, it is rotatory to drive hydraulic turbine 8 through rivers, and hydraulic turbine 8 converts the kinetic energy of rivers into mechanical energy, and hydraulic turbine 8 drives acceleration gear 5 rotatory through transmission steel cable 7 and universal joint 6, and acceleration gear 5 carries out the rotational motion of hydraulic turbine 8 after the speed-up and transmits to generator 4 to generate electricity through generator 4 with the rotatory mechanical energy conversion of hydraulic turbine 8. A large number of experiments prove that the water flow power generation device can generate power in natural water flow, and has the advantages of reasonable structure, good equipment operation stability, high energy conversion rate, energy conservation and environmental protection.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water flow power generation device is characterized by comprising a main floating body, an angle adjusting plate, a power generator, a speed-up gear box, a universal joint, a transmission steel rope and a water turbine, wherein the angle adjusting plate is freely rotatably installed at the rear end of the main floating body through a rotating shaft, the rotating shaft is arranged along the transverse direction of the main floating body, the power generator and the speed-up gear box are installed on the top surface of the angle adjusting plate, an output shaft of the speed-up gear box is connected with an input shaft of the power generator, an input shaft of the speed-up gear box is connected with one end of the transmission steel rope through the universal joint, the other end of the transmission steel rope is connected with the water turbine positioned behind the main floating body, and the transmission steel rope is used for transmitting the rotary motion of the water turbine.

2. The water current power generation device according to claim 1, wherein angle limiting mechanisms are symmetrically arranged on two sides of the angle adjusting plate on the main floating body, arc-shaped grooves are vertically arranged on the angle limiting mechanisms, arc-shaped convex blocks matched with the arc-shaped grooves are arranged on two end side surfaces of the angle adjusting plate, and the arc-shaped convex blocks are inserted into the arc-shaped grooves.

3. The water current power generation device according to claim 1, wherein both ends of the arc-shaped groove are provided with a buffer device.

4. The water current power generation device according to claim 1, further comprising a rigid transmission shaft and a rotation support device for supporting the rigid transmission shaft, wherein the rotation support device is fixedly mounted on the angle adjustment plate, one end of the rigid transmission shaft is connected with the input shaft of the speed increasing gear box, the other end of the rigid transmission shaft is connected with the universal joint, and the rigid transmission shaft penetrates through the rotation support device and can freely rotate in the rotation support device.

5. The water current power generation device according to claim 1, further comprising an auxiliary floating body, wherein a bearing is sleeved on a position of the transmission steel rope close to the water turbine, the transmission steel rope can freely rotate in the bearing, a steel wire rope is arranged on the auxiliary floating body, and a free end of the steel wire rope is fixedly connected with an outer wall of the bearing.

6. The hydroelectric power generation device of claim 5, wherein a winch is arranged on the auxiliary floating body, the steel wire rope is wound on the winch, and a non-free end of the steel wire rope is fixedly connected with the winch.

7. The hydroelectric power generation device of claim 6, wherein the auxiliary floating body comprises a first floating body and a second floating body which are symmetrically arranged, and a connecting body for connecting the first floating body and the second floating body, the first floating body, the second floating body and the connecting body together form an inverted concave structure, the top of the connecting body is provided with the winch, the free end of the steel wire rope penetrates through the connecting body and is fixedly connected with the outer wall of the bearing, and an accommodating space for accommodating the water turbine is surrounded by the first floating body, the second floating body and the connecting body.

8. The water current power generation device according to any one of claims 1 to 7, wherein the water turbine includes a central shaft, blades uniformly distributed on the central shaft, and a housing surrounding the two ends of the periphery of the blades, one end of each blade is fixedly connected with the outer wall of the central shaft, the other end of each blade is fixedly connected with the inner wall of the housing, the two ends of the housing are respectively provided with a water current inlet and a water current outlet, the axial section of the housing is isosceles trapezoid, and the diameter of the water current inlet is larger than that of the water current outlet.

9. Water current power plant according to any one of claims 1 to 7, characterised in that the water turbine is made of carbon fibre material.

10. Water current power plant according to any of claims 1-7, characterised in that the main buoy is of a boat-type structure with a hollow interior.