CN110594092B

CN110594092B - Coaxial asynchronous dual drive vortex turbine

Info

Publication number: CN110594092B
Application number: CN201910946397.6A
Authority: CN
Inventors: 徐文和
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-05
Filing date: 2019-10-05
Publication date: 2021-03-23
Anticipated expiration: 2039-10-05
Also published as: WO2021062909A1; CN110594092A

Abstract

The utility model provides a coaxial asynchronous dual drive vortex turbine, includes frame (7), vertical setting at frame (7) middle part and lie in main shaft (3) on the generator input, along rotatable blade (4) of circumference setting in main shaft (3) outer fringe, blade pivot (6) articulate on frame (7), and its technical essential is: when the frame (7) rotates, the blade main body is always positioned in the frame (7), the circumscribed circle of a polygon formed by connecting lines of the blade rotating shafts (6) is a perfect circle, the circle center of the perfect circle is positioned on the central axis of the main shaft (3), and the connecting line of the adjacent blade rotating shafts (6) is provided with a vertical stop lever (9) for limiting the rotation of the blade (4). The device has the advantages of simple and compact structure, low manufacturing cost, high energy conversion efficiency and the like.

Description

Coaxial asynchronous dual drive vortex turbine

Technical Field

The invention relates to the field of generators, in particular to a hydraulic engine or a wind power engine, in particular to a coaxial asynchronous dual-drive vortex turbine, and the IPC classification number of the turbine is F03B or F03D.

Background

The ocean current power generation and the wind power generation are basically improved by referring to the principle of the Dutch windmill by utilizing wind energy and water flow energy for a long time, for example, the water mill and the famous Dutch windmill, the current most ideal maximum value of effective conversion power by utilizing the method is only 0.26, if the kinetic energy of wind or water is completely absorbed by the blade, the air pressure of the air behind the blade and the air in front form a confrontation situation, like a group of people enters a revolving door, the people passing the blade are exhausted, and can not continue to move forwards (the wind passes through the blade for 100 percent of kinetic energy conversion), therefore, people outside the door can not continue to move forwards (the outside wind can not continue to pass through the blade) due to the front obstruction, so the blade is not rotated.

The wind turbine does not solve the problems of energy conversion and medium flow of the blades, the energy source is the speed generated by the fluid flow, and after the fluid speed is absorbed by the blades and converted into mechanical energy, carriers such as: the method is characterized in that (air and water) still exist, according to the principle that substances do not go on the law, no matter which carrier is utilized, after the fluid speed is absorbed by the blades and converted into mechanical energy, the speed is absorbed, but the carrier still exists, if resistance is formed without going, new speed does not exist, mechanical energy brought by rotation is not generated without new speed, and how to process the carriers without speed is the key point of technical breakthrough.

In the technical scheme, when the central shaft of the central rotating assembly 3 deflects, the connecting assembly 4 connected with the central rotating assembly 3 can cause the balance problem during rotation, the resistance of an output shaft is increased, and the energy efficiency conversion rate is reduced; since the connecting assembly 4 is located on the fluid path, the weight of the blade 53 cannot be supported by the connecting rod 41 of the connecting assembly 4 being too thin, and the resistance of the entire system is increased by the connecting rod 41 being too thick, which is a significant drawback of this solution.

Disclosure of Invention

The invention aims to provide a coaxial asynchronous dual-drive vortex turbine, which fundamentally solves the problems and has the advantages of simple and compact structure, low manufacturing cost, high energy conversion efficiency and the like.

In order to achieve the purpose, the invention provides the following technical scheme: this coaxial asynchronous dual drive vortex turbine includes frame (7), vertical setting at frame (7) middle part and lie in main shaft (3) on the generator input, along rotatable blade (4) of circumference setting in main shaft (3) outer fringe, blade pivot (6) articulate on frame (7), and its technical essential is: when the frame (7) rotates, the blade main body is always positioned in the frame (7), the circumscribed circle of a polygon formed by connecting lines of the blade rotating shafts (6) is a perfect circle, the circle center of the perfect circle is positioned on the central axis of the main shaft (3), and the connecting line of the adjacent blade rotating shafts (6) is provided with a vertical stop lever (9) for limiting the rotation of the blade (4).

An obtuse angle of more than 100 degrees is formed between the outer end of the blade (4) and the main body of the blade (4), and the obtuse angle is opposite to the main shaft (3).

After the fluid medium enters the frame (7), the frame is driven to rotate, flow speed difference is formed at the left side and the right side, and a first interval to a fourth interval are formed; when the blade (4) is positioned in the first interval to the second interval, the blade main body is positioned on the connecting line of the blade rotating shaft (6) and the main shaft; when the blade (4) is positioned in the third interval, the blade main body is limited by the stop lever (9); when the blade (4) is located in the fourth interval, the blade body is parallel to the fluid medium.

The invention has the beneficial effects that: the invention can not only realize the great profit of the clean energy, but also replace the petrochemical energy in the future in a large scale if the invention can be fully utilized.

The supporting structure is set to be a symmetrical frame structure, so that the main shaft 3 is balanced and pressed in the circumferential direction, and the resistance increase caused by the deflection of the main shaft 3 is avoided. In addition, the blades 4 rotate on the inner side of the frame 7 all the time, so that the kinetic energy of the fluid can be effectively utilized to do work, and the situation that the supporting structure blocks the fluid is effectively avoided.

According to the law of resistance, the power of the vertical shaft turbine is in direct proportion to the difference of the vertical projection areas of the blades acting on the two sides of the vertical shaft, the larger the difference is, the larger the power is, when the left blade 4 is in rotating motion, the swept area of the blade is 50%, only the upper and lower arm rods of the frame 7 and the auxiliary shaft 6 which are symmetrical with the swept area of the blade generate little resistance, and the side surfaces of the arm rods and the auxiliary shaft 6 are made into wedges, so that the resistance is reduced as much as possible.

Under the action of the outer angle of the flow guide groove, a small flow velocity V2 on the left side of the main shaft is guided to be converged with a V2 on the right side of the main shaft in a second driving area D2 to form a vortex, a thrust is generated to act on the inner angle of the flow guide groove, and a resultant force is formed with the thrust generated by the first driving area D1.

When the turbine is arranged, no requirement is made on the direction of fluid with flow velocity, the direction of equipment does not need to be adjusted through a complex electronic numerical control facility, facilities such as a water channel and a dam do not need to be specially built for the equipment, and when the fluid with flow velocity in any direction impacts blades, the turbine can rotate clockwise.

When the symmetrical arrangement in rows is adopted, the stability of acting during operation can be effectively improved.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 1-1 is a schematic top view of the present invention.

FIG. 2 is an elevation view of the auxiliary shaft and blades of the present embodiment.

Fig. 2-1 is a cross-sectional view of an auxiliary shaft and blade of the present invention.

Fig. 3 is a schematic structural view in a use state.

FIG. 4 is a schematic diagram of the operation process of the present invention.

Fig. 5 is a schematic view of the working principle of the technical solution disclosed in the patent application publication No. CN 107044375 a.

Description of reference numerals: the device comprises a base 1, a motor 2, a speed change system 3, a main shaft 3, blades 4, vortex grooves 5, a blade rotating shaft 6, a frame 7, a boosting rod 8 and a stop rod 9.

Detailed Description

The present invention will be described in detail below with reference to fig. 1 to 5 by way of specific examples. The coaxial asynchronous dual-drive vortex turbine comprises a frame 7, a main shaft 3 vertically arranged in the middle of the frame 7 and positioned on the input end of a generator, and rotatable blades 4 arranged on the outer edge of the main shaft 3 along the circumferential direction, wherein a blade rotating shaft 6 is hinged on the frame 7. When the frame 7 rotates, the blade main body is always positioned in the frame 7, the circumscribed circle of a polygon formed by connecting lines of the blade rotating shafts 6 is a perfect circle, the circle center of the perfect circle is positioned on the central axis of the main shaft 3, and the connecting line of the adjacent blade rotating shafts 6 is provided with a vertical stop lever 9 for limiting the rotation of the blade 4. In order to improve the fluid acting force and the structural stability, an obtuse angle of more than 100 degrees is formed between the outer end of each blade 4 and the blade body, and the obtuse angle is opposite to the main shaft 3.

After the fluid medium enters the frame 7, the frame 7 is driven to rotate, flow speed differences are formed on the left side and the right side, and a first interval to a fourth interval are formed; when the blade 4 is positioned in the first interval to the second interval, the blade main body is positioned on the connecting line of the blade rotating shaft 6 and the main shaft; when the blade 4 is positioned in the third interval, the blade main body is limited by the stop lever 9; when the blade 4 is in the fourth interval, the blade body is parallel to the fluid medium.

The invention uses turbine blades around the vertical axis to collect two driving modes of energy:

according to the law of resistance, the direction of the fluid creates a resistance with any area in the direction of movement cutting it. The vertical plane is formed by the impact on the blades 4, all the flow force is absorbed by the blades 4100% and converted into mechanical energy, the main shaft 3 is pushed to rotate under the thrust action of the V1 and the blades 4, the flow speed of the VP1 outside the blades 4 is 0m/s, the flow force is lost, only the carrier is left, when the lower group of blades enters the vertical plane, the upper group of blades enters the automatic drainage area VP2, the flow speed of the VP2 is 0m/s, and therefore, the movement process is called as the upper half driving area D1.

According to the lever principle, the farther the fluid distance from the main shaft 3 is, the larger the thrust force is, and conversely, the closer the fluid distance is, a part of the fluid V1 close to the main shaft 3 on the left side is guided to the right side of the main shaft 3 through the diversion groove 5 to be combined with the fluid V2 to form a stream of vortex flow towards the opened blades 4 which are dragged by the limiting stop rod 9, at the moment, the opened blades 4 also serve as force arms to push the auxiliary shaft 6 connecting arm rod 7 outwards to generate a clockwise acting force, and the driving force of the part has an instant difference with the upper half driving area D1, so that the part is called as a lower half driving area D2.

The two driving forces are combined to form a working mode, namely the coaxial asynchronous vortex turbine, the coaxial driving force means that the coaxial driving force is all the arms, the auxiliary shafts and the blades, the working states of the arms, the auxiliary shafts and the blades rotate around the main shaft in one direction no matter the blades are opened or closed, the asynchronous driving means that two driving areas have the same working principle and different working postures and are driven only in instant difference, the double driving means that the front and the rear blades absorb the conversion area of speed conversion mechanical energy, the vortex means that a surrounding vortex is formed under the action of the guide groove, the turbine has the greatest characteristic that fluid with the speed can be completely absorbed by the blades and can be easily discharged, the resistance is reduced to the maximum extent in the movement process, and the new blades can work in cycles with new flow speed, the energy collection capacity of the blade is improved to the maximum extent, and the mechanical energy conversion capacity is improved.

TABLE 1 test report of the Experimental centre

Parameters are as follows: radius 0.5m, height 0.6m, diameter 1m, blade swept area 0.6m²

TABLE 2 technical-analogous comparison

The ocean power generation project of 'Delta stream' in British is the maximum power ocean power generation device successfully connected with the grid for generating power at present, namely 'the most worldwide' is the theoretical basis invention of the most typical simulated Betz 'Mr. the most ideal wind turbine', the maximum power generation power is calculated to be only equal to the power generation power of the experimental equipment in the water flow rate of 1.7m/s, the power of the two power is in direct proportion to the third power of the flow rate according to the calculation of the Betz theorem, the flow rate ratio of the two power is 3 Moire/1.7 Moire =5.5 times, and the radius ratio is 15m/0.5M =30 times, and the calculation shows that if the ocean power generation project is applied to the water area of the Delta stream project in British, the installed capacity of a single machine can reach 20 megawatts, and according to the result, the breakthrough limit has no suspensibility, the maximum energy can reach, and the expert needs to carry out the new limit theore.

The base 1 is provided with a main shaft 3, the upper end of the main shaft 3 is connected with a motor and speed change system 2, the upper part and the lower part of the main shaft 3 are respectively fixedly connected with symmetrical arm rods 7, the outer ends of the arm rods 7 of the upper part and the lower part are fixedly connected with an assistance rod 8, the arm rods 7 of the upper part and the lower part are provided with an auxiliary shaft 6 capable of being converted, blades 4 connected with the auxiliary shaft, and the end parts of the blades 4 are provided with bevel vortex grooves 5.

The fluid medium is divided into two flow velocities of V1 and V2 by taking the spindle 3 as a center, wherein V1 mainly flows to the left side of the spindle 3 and impacts on an upper half driving area D1 (a first interval), a small part of V1 is turned to the right side by the vortex groove 5 and moves towards a second driving area with the right V2, when V1 enters the upper half driving area D1 and impacts against the blades 4 to form a right angle, power is completely absorbed by the blades, the spindle 3 is pushed to rotate under the thrust action of V1 and the blades 4, when the blades of a next group enter a vertical angle, the blades of the previous group enter a drainage area VP2 and do reciprocating motion in a circulating manner in the same way to form a moving period of an upper half area D1, and the lower half area D2 takes the resultant force of V1 and V2 as a main driving force, and a small part of V1 close to the diversion groove 5 and V2 on the right side.

The main shaft 3 is closest to the fluid medium V1 on the left side, the part is guided to the right side through the guide groove, according to the lever principle, the part is guided by the chute 5 and moves simultaneously with the V2 on the right side of the main shaft 3, when the blade 4 rushing to the outside from the V2 on the right side of the main shaft 3 is guided by the chute on two sides V2 to form vortex, and simultaneously form an acting force on each opened blade 4 in the lower half area D2, at the moment, the blade is converted into a force arm, the auxiliary shaft 6 is pushed to be connected with the arm rod 7 to generate a clockwise acting force, when the auxiliary shaft 6 and the main shaft 3 form a straight line with the fluid direction, at the moment, the outside of the blade 4 is VP2, VP 7 = VP1, the flow rates are both 0, the flow rate of the inner lower half driving area D2 (third area) is far larger than 0, the difference between the inside and outside flow rate and the inside flow rate is larger when the fluid, form a complete vortex, and move in cycles to generate the force. When the whole power generation system is placed in a river channel, the power generation system is continuously circulated under the driving of water flow according to the process that … A is larger than B is larger than C is larger than A … in FIG. 4, and the main shaft 3 is driven to rotate clockwise.

For the sake of convenience, the terms "the blade main body is located on the line connecting the blade rotation axis 6 and the main axis 3", "the blade main body is parallel to the fluid medium", and the like, are expressed by the terms that the blade main body is perfectly overlapped with the line connecting the blade rotation axis and the main axis "or the flow direction of the fluid medium" in an ideal state. In practice, the fluid may oscillate due to the flow velocity, flow rate, and direction, and the exact same situation as above may always occur.

Betz 'Law, also known as Betz' Law, is a fundamental theory on wind energy efficiency in wind power generation, proposed by the German physicist Albert-Betz (Albertbottz) in 1919. It is based on the assumption of an "ideal rotor", i.e., that the wind turbine can accept all the kinetic energy of the fluid passing through the rotor, and the fluid is free of resistance, and the fluid is a continuous, incompressible fluid. The limit ratio of the amount of wind energy converted into kinetic energy in this ideal case is 16/27, which is about 59%.

For convenience of description of the operation principle, according to the clockwise rotation direction of fig. 3, the lower left (D1) is defined as the first interval, the upper left is defined as the second interval, the upper right (D2) is defined as the third interval, and the lower right is defined as the fourth interval.

Of course, on the basis of the inventive concept, the blades can also be arranged in the mirror image direction of fig. 3. At this time, the lower right is the first section, the upper right is the second section, the upper left is the third section, and the lower left is the fourth section. And the spindle rotates counterclockwise.

Claims

1. The utility model provides a coaxial asynchronous dual drive vortex turbine, includes frame (7), vertical setting at frame (7) middle part and lie in main shaft (3) on the generator input, along rotatable blade (4) of circumference setting in main shaft (3) outer fringe, blade pivot (6) articulate on frame (7), its characterized in that: when the frame (7) rotates, the blade main body is always positioned in the frame (7), the circumscribed circle of a polygon formed by connecting lines of the blade rotating shafts (6) is a perfect circle, the circle center of the perfect circle is positioned on the central shaft of the main shaft (3), and a vertical stop lever (9) used for limiting the rotation of the blade (4) is arranged on the connecting line of the adjacent blade rotating shafts (6); the tail end of the blade (4) is provided with a vortex groove (5);

an obtuse angle of more than 100 degrees is formed between the outer end of each blade (4) and the blade main body, and the obtuse angle is opposite to the main shaft (3);

after the fluid medium enters the frame (7), the frame (7) is driven to rotate, flow speed difference is formed at the left side and the right side, and a first interval to a fourth interval are formed; when the blade (4) is positioned in the first interval to the second interval, the blade main body is positioned on the connecting line of the blade rotating shaft (6) and the main shaft; when the blade (4) is positioned in the third interval, the blade main body is limited by the stop lever (9); when the blade (4) is located in the fourth interval, the blade body is parallel to the fluid medium.