CN112283004A

CN112283004A - Fluid power machine, fluid power machine set and using method thereof

Info

Publication number: CN112283004A
Application number: CN202011393706.0A
Authority: CN
Inventors: 高树富; 高天
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-01-29

Abstract

A fluid power machine and a construction method thereof relate to the technical field of fluid kinetic energy collection and conversion, in particular to a kinetic energy collection, conversion and output device of a low-speed fluid power machine. The device comprises a bracket, wherein a rotating shaft is arranged on the bracket and can freely rotate; the sliding structures are uniformly arranged around the rotating shaft, and the sliding vanes are connected with the rotating shaft through the sliding structures. The impact force is converted into the driving force to the sliding blade in the downstream process, the kinetic energy is fully absorbed in the semicircular track, the sliding blade radially penetrates through the rotating shaft after exceeding the horizontal plane of the rotating shaft, the phenomenon that the impact force is converted into the resistance is avoided, and the impact force technology is used as the driving force to drive the sliding blade to rotate so as to drive the rotating shaft to rotate. The plurality of fluid power machines are connected into one group, so that the area for collecting kinetic energy is increased, the two groups are arranged in an angle manner, the problem that the kinetic energy cannot be effectively absorbed due to the change of the direction of the fluid is avoided, and the utilization efficiency of the fluid kinetic energy is greatly improved.

Description

Fluid power machine, fluid power machine set and using method thereof

Technical Field

The invention relates to the technical field of fluid kinetic energy capturing and converting, in particular to a resistance type low-speed fluid kinetic energy capturing and converting system device.

Background

The development and utilization of fossil energy can promote the discovery and progress of human civilization, simultaneously discharge a large amount of harmful substances, pollute the environment, destroy the ecological balance, and seriously threaten the natural ecological balance and the survival and development of human civilization by the degree of the generated negative effects. The development and utilization of clean new energy to replace fossil energy, the reduction of harmful substance emission, the maintenance of ecological balance, and the continuous promotion of the development and progress of social civilization are common responsibility and obligation of the whole society. The large development and utilization of natural fluid kinetic energy has a major share in new energy resources to replace fossil energy, but is far from huge new energy requirements. And a plurality of low-speed fluid energy sources with abundant reserves, large quantities, wide ranges, small frequency fluctuation, long duration and less flow rate change wait to be developed. The low-speed fluid mainly comprises ocean current energy, fluid kinetic energy of shoals and rivers, wind energy with relatively low flow speed and the like. The kinetic energy of the low-speed fluid is not easy to be converted and utilized due to small energy density. Most of the processes of converting fluid kinetic energy into mechanical power are processes of concentrating low-density energy on a large area to a central point and converting the low-density energy into mechanical kinetic energy with higher density to output and do work. In the process of converting the low-speed fluid kinetic energy, the energy collecting area needs to be enlarged to collect the required fluid kinetic energy and output work. When the existing impeller type fluid kinetic energy conversion machine collects energy, the existing impeller type fluid kinetic energy conversion machine needs to be immersed in fluid which moves in a single direction to rotate, the upstream surface of a blade receives impact of downstream fluid to generate power, and the opposite surface moves in a reverse direction to generate resistance. The resistance increases while the blade area is increased to increase power. The efficiency of kinetic energy collection and conversion is low, the phenomenon that the kinetic energy collection and conversion is difficult even to rotate in low-speed fluid occurs, and the kinetic energy collection and conversion is more difficult to output and do work.

Disclosure of Invention

The invention aims to provide a fluid power machine, a fluid power machine set and a using method thereof, so that an energy capturing blade can return to a downstream area to receive the impact force of downstream fluid again to operate in a downstream direction without a process of operating in a upstream direction, and power output and work are continuously generated. The energy-catching blades avoid the running process of the reverse flow direction, the generation of resistance is reduced, and the output of kinetic energy is increased. The purpose that the kinetic energy of low-speed fluid which is not developed and utilized in a large amount originally can also output power to do work is achieved.

The invention provides a fluid power machine, which is characterized by comprising a bracket, wherein a rotating shaft is rotatably arranged on the bracket; the sliding structure is a sliding block and a sliding groove frame which are matched with each other, and the sliding block and the sliding groove frame are respectively and fixedly arranged on the sliding vane or the rotating shaft; the sliding structures are arranged in pairs and are respectively arranged on two sides of the sliding vane.

Furthermore, the sliding structure comprises a sliding block and a sliding groove frame; the sliding block is fixedly connected to the rotating shaft, the sliding groove frames are fixedly connected to the two sides of the sliding vanes, and the sliding block is in sliding fit with the sliding groove frames.

Furthermore, the sliding structure comprises a sliding groove frame and a sliding block; the sliding groove frame is fixedly connected to the rotating shaft, the sliding blocks are fixedly connected to two sides of the sliding vanes, and the sliding groove frame is in sliding fit with the sliding blocks.

Furthermore, the sliding block is a roller.

Furthermore, a plurality of sliding groove frames are arranged on the same end side of the rotating shaft and are uniformly arranged in a ring array to form a spoke type structure; the overlapping areas of the plurality of chute frames on the same end side are communicated with each other; the sliding groove frame is matched with the sliding block on the sliding vane.

Furthermore, a gravity auxiliary device is also arranged on the sliding blade, and the gravity auxiliary device is a vacuum mercury tube or a sealed steel tube containing a steel ball.

The invention also provides a fluid power unit based on the fluid power machine, which comprises at least 2 fluid power machines, wherein adjacent fluid power machines are connected in series by matching universal joint couplers and clutches, and rotating shafts are arranged at 90 degrees.

The invention also provides a using method based on the fluid power unit, which comprises the following steps:

a) the fluid power unit provided by the invention is fixedly installed and is immersed into fluid;

b) the fluid impacts the sliding vane, and the sliding vane is impacted by the downstream flow and moves along the rotating shaft;

c) when the sliding vane rotates to be consistent with the height of the rotating shaft, the sliding vane is not impacted by downstream;

d) the sliding vane continues to rotate by means of inertia and the pushing force of other sliding vanes, and the height of the sliding vane is higher than that of the rotating shaft;

e) the sliding vane slides down along the sliding mechanism under the combined action of gravity and counter-current reaction force generated by Bernoulli principle;

f) the sliding vane slides down and then is impacted by the downstream again, so that the sliding vane reciprocates, the sliding vane continuously moves along the lower semicircle track, and the rotating shaft continuously rotates.

After the sliding vane exceeds the horizontal plane of the rotating shaft, the sliding vane radially penetrates through the rotating shaft under the combined action of the gravity of the sliding vane and the counter-flow reaction force generated by the Bernoulli principle, slides to a downstream area and receives downstream impact of fluid again. The reverse flow direction movement is avoided, so that the impact force is prevented from being converted into resistance, and the impact force is continuously used as a driving force to push the sliding blade to rotate so as to drive the rotating shaft to rotate. The adjacent fluid power machines are connected in series by matching universal joint couplers and clutches, and the rotating shafts are arranged at 90 degrees, so that the fluid power machine can be suitable for fluids in different directions. In the aspect of conversion and utilization of ocean current energy: the characteristics of greater energy density, stability and regularity of the ocean current energy are utilized, and more stable kinetic energy is converted and output. The wind energy conversion and utilization device has two different functions: one is that the wind turbine can independently play the role of generating electricity by a wind power plant like other wind turbines; the other function is a supplementary function of insufficient output of most existing lift force type wind turbines of the wind power plant in a low wind speed period. The low-speed fluid kinetic energy is fully developed, the utilization efficiency of the fluid kinetic energy is greatly improved, the application range of the fluid power machine is expanded, the supply quantity of new energy is increased, the supply time of the new energy is prolonged, the fluctuation of the load of a power grid is reduced, the stability is enhanced, and the problem of insufficient coordination between supply and demand is solved. The new energy is used for replacing the traditional energy, the emission of greenhouse gases and the generation of harmful substances are reduced, the ecological balance is maintained, and the social civilization development progress is continuously promoted.

Drawings

The accompanying drawings disclose, in part, specific embodiments of the present invention, wherein,

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a top view of a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the present invention.

Detailed Description

As shown in fig. 1-3, the fluid power machine provided by the present invention is characterized in that the fluid power machine comprises a support 1 for supporting the whole structure, a rotating shaft 2 is rotatably connected with the support 1, the rotating shaft 2 and a sliding vane 3 are fixedly mounted on the rotating shaft 2 through a sliding mechanism, so that the sliding vane 3 moves along a semicircular track below the horizontal plane of the rotating shaft 2, when the sliding vane 3 rotates above the horizontal plane of the rotating shaft 2 by inertia, etc., the sliding vane 3 slides down along the sliding mechanism by gravity, and then is subjected to the driving force of fluid again to perform a new round of rotation. The sliding vane 3 is provided with a gravity auxiliary device along the radial direction of the rotating shaft 2, such as a vacuum mercury tube or a steel tube containing a steel ball, and the auxiliary vane slides down along the diameter of the semicircle by virtue of gravity. The invention will now be further illustrated by the following three examples.

First embodiment, the present embodiment uses three brackets 1 at the left, middle and right, and three short rotating shafts 2 for rotational connection. One end of the rotating shaft 2 connected with the outer bracket 1 is fixedly connected with a rectangular first sliding block 4; both ends of the rotating shaft 2 connected with the middle bracket 1 are fixedly connected with rectangular first sliding blocks 4, and the rectangular sliding blocks 4 form an included angle of 90 degrees. The sliding vane 3 is matched with the rectangular first sliding block 4 through the sliding groove frames 5 arranged on the two sides, and the included angle is also 90 degrees. In practical applications, the fluid pushes the sliding vane 3 around the rotation axis 2. When the left sliding vane 3 rotates to be close to the horizontal direction by the fluid impact force, the impact force is the minimum, and the rotating thrust is lost; at this time, the right sliding vane 3 is perpendicular to the direction of the fluid impact force, and the impact force is the largest. The rotating shaft 2 connected with the middle bracket 1 drives the left sliding vane 3 to continuously rotate around the rotating shaft 2, after the horizontal position is exceeded, the left sliding vane 3 slides down under the action of gravity and continuously rotates around the rotating shaft 2, and meanwhile, the sliding vane 3 is gradually increased under the impact force of fluid; when the left sliding vane 3 and the fluid direction are at 90 degrees, the right sliding vane 3 rotates to be approximately horizontal, similarly, the left sliding vane 3 drives the right sliding vane 3 to rotate upwards to exceed the horizontal position through the rotating shaft 2 connected in the middle, and the right sliding vane 3 slides down under the action of gravity; in the gliding process of the blade, a gravity auxiliary device, such as a vacuum mercury tube or a steel tube containing a steel ball, plays a role in accelerating gliding. The left and right sliding vanes 3 are engaged with each other to continuously rotate the rotary shaft 2.

Second embodiment, this embodiment uses a bracket 1 and a whole rotation shaft 2 to be rotatably connected. Two pairs of chute frames 5 are fixed on the rotating shaft 2 and form an included angle of 90 degrees. The sliding vane 3 is matched with the sliding groove frame 5 through the second sliding blocks 4 arranged on two sides, and the included angle is also 90 degrees. In practical applications, the fluid pushes the sliding vane 3 to rotate the rotating shaft 2. When the left sliding vane 3 rotates to be close to the horizontal direction by the fluid impact force, the impact force is the minimum, and the rotating thrust is lost; at the moment, the right sliding vane 3 is vertical to the direction of the fluid impact force, the impact force is the largest, the left sliding vane 3 is driven by the rotating shaft 2 to continuously rotate around the rotating shaft 2, after the horizontal position is exceeded, the left sliding vane 3 slides under the action of gravity and continuously rotates along with the rotating shaft 2, and meanwhile, the sliding vane 3 is gradually increased by the fluid impact force; when the left sliding vane 3 and the fluid direction are at 90 degrees, the right sliding vane 3 rotates to be approximately horizontal, and similarly, the left sliding vane 3 drives the right sliding vane 3 to rotate upwards to exceed the horizontal position through the rotating shaft 2, and the right sliding vane 3 slides down under the action of gravity; in the gliding process of the blade, a gravity auxiliary device, such as a vacuum mercury tube or a steel tube containing a steel ball, plays a role in accelerating gliding. The left and right sliding vanes 3 are engaged with each other to continuously rotate the rotary shaft 2.

Third embodiment this embodiment uses two supports 1 and two short rotating shafts 2 for rotational connection. Two pairs of cross-shaped chute frames 5 are fixedly connected at one end of the rotating shaft 2. The two sliding vanes 3 are matched with the guide rail sliding groove through the sliding blocks 4 or the pulleys arranged on the two sides, and the included angle is 90 degrees. In practical applications, the fluid pushes the sliding vane 3 to rotate the rotating shaft 2. When the prior sliding vane 3 rotates to be close to the horizontal direction by the fluid impact force, the impact force is the minimum, and the rotating thrust is lost; at the moment, the subsequent sliding vane 3 is vertical to the direction of the fluid impact force, the impact force is the largest, the prior sliding vane 3 is driven to continue to rotate around the rotating shaft 2 through the rotating shaft 2 and the track sliding chute, after the horizontal position is exceeded, the prior sliding vane 3 slides down under the action of gravity and continues to rotate along with the rotating shaft 2 and the track sliding chute, and the fluid impact force is gradually increased; when the first sliding vane 3 and the fluid direction form an angle of 90 degrees, the second sliding vane 3 rotates to be close to the horizontal position, and in the same way, the first sliding vane 3 drives the second sliding vane 3 to rotate upwards to exceed the horizontal position through the rotating shaft 2, and the second sliding vane 3 slides down under the action of gravity; in the gliding process of the blade, a gravity auxiliary device, such as a vacuum mercury tube or a steel tube containing a steel ball, plays a role in accelerating gliding. The two sliding vanes 3 are engaged with each other to continuously rotate the rotary shaft 2.

The fluid power machines are matched with the clutch through universal joint couplers, and the fluid power machines are arranged at 90 degrees. The universal joint coupling and the clutch are the prior art, and can be realized by those skilled in the art, and are not described in detail.

In practical application, the two fluid power machines are connected into a fluid power machine set through the clutch, the fluid power machines are arranged at 90 degrees, even if the movement direction of fluid is changed, the fluid power machine set can still work, and the collection efficiency of fluid kinetic energy is greatly improved; if fluid capable of damaging the fluid power machine is met, the clutch is disconnected, and the fluid power machine is prevented from being damaged.

Claims

1. A fluid power machine, characterized in that it comprises a support (1), and a rotating shaft (2) is rotatably mounted on the support (1); a sliding structure is passed between the sliding vane (3) and the rotating shaft (2). To achieve assembly and connection, the sliding structure refers to the sliding block (4) and the chute frame (5) that cooperate with each other. on the shaft (2); the sliding structures are arranged in pairs, and are respectively arranged on both sides of the sliding vane (3).

2. The fluid power machine according to claim 1, further characterized in that the sliding structure comprises a slider (4) and a chute frame (5); the slider (4) is fixedly connected to the rotating shaft (2) , the chute frame (5) is fixedly connected on both sides of the sliding vane (3), and the slider (4) is slidingly matched with the chute frame (5).

3. The fluid power machine according to claim 1, further characterized in that the sliding structure comprises a chute frame (5) and a sliding block (4); the chute frame (5) is fixedly connected to the rotating shaft (2) The sliding block (4) is fixedly connected on both sides of the sliding blade (3), and the sliding groove frame (5) is slidingly matched with the sliding block (4).

4. The fluid power machine according to claim 3, further characterized in that the slider (4) is a roller.

5 . The fluid power machine according to claim 1 , further characterized in that a plurality of chute frames ( 5 ) are arranged on the same end side of the rotating shaft ( 2 ), which are evenly arranged in a ring row to form a spoke structure; 5 . The overlapping areas of the plurality of chute frames (5) on the same end side communicate with each other; the chute frames (5) cooperate with the sliders (4) on the sliding vanes (3).

6. The fluid power machine according to any one of the preceding claims, characterized in that, the sliding vane (3) is further provided with a gravity assist device, and the gravity assist device is a vacuum mercury tube or a steel-containing Ball-sealed steel tube.

7. The fluid power unit based on the described fluid power machine of claim 1, is characterized in that, comprises at least 2 fluid power machines, and realizes series connection with universal joint coupling and clutch between adjacent fluid power machines, and the rotating shaft is in the 90° arrangement.

8. based on the using method of the described fluid power unit of claim 7, is characterized in that, comprises the steps:

a) The fluid power unit is fixedly installed and immersed in the fluid;

b) The fluid impacts the sliding vane, and the sliding vane is subjected to the downstream impact to drive the rotating shaft to move;

c) When the sliding vane rotates to the same height as the rotating shaft, it will no longer be impacted by the downstream flow;

d) The sliding vane continues to rotate relying on inertia and the propulsive force of other sliding vanes, and its height will be higher than the height of the rotating shaft;

e) The sliding vane slides down along the sliding mechanism under the combined action of gravity and the countercurrent reaction force generated by the Bernoulli principle;

f) After the sliding blade slides down, it is impacted by the downstream flow again. In this way, the sliding blade continues to move along the "lower semicircle" trajectory, and the rotating shaft continues to rotate.