CN113864105B - Power generation assembly and double-elastic water bag internal flow energy power generation device - Google Patents

Abstract

The utility model provides an utilize two elasticity water pocket internal flow energy power generation facility in karman vortex street, the device includes: the device comprises a rotating ring, a left water bag, a right water bag, an empennage, a floating body, a pull rope, a limiting plate, a pipeline and a Wils turbine for water, and is ingeniously combined with a bridge pier, when water flows through the bridge pier, alternate vortexes can be generated on two sides of the bridge pier, namely, the periodic alternating transverse force action of the Karman vortex street is generated, further, the left water bag and the right water bag in the device can be alternately extruded, so that water in the left water bag and the right water bag shuttle back and forth, the impeller of the turbine in the pipeline rotates, and finally, the device can generate power continuously. The floating body in the device can move up and down according to different water level heights, so that the water flow under different water level heights can be optimally utilized. The device can utilize wind energy in the nature to realize power generation even under the condition that the water level is completely faded.

Description

Power generation assembly and double-elastic water bag internal flow energy power generation device

Technical Field

The application belongs to the field of renewable energy power generation, and particularly relates to a power generation assembly and a double-elastic water bag internal flow energy power generation device.

Background

Currently, with the development of economy, the consumption of non-renewable resources (petroleum, coal, natural gas, etc.) is increasing, with the accompanying problem of increasingly serious environmental pollution. Therefore, the use of renewable energy is becoming more important in various countries.

As is well known, fluid motion generally exists in nature, so that water flow energy, wind energy and the like are inexhaustible renewable energy sources.

The karman vortex street is an important phenomenon in hydrodynamics, and can be encountered in nature, when a steady incoming flow under certain conditions bypasses certain objects, two sides of the objects periodically drop out double-row line vortices which are opposite in rotation direction and regularly arranged, and after nonlinear action, the karman vortex street is formed. If water flows through the bridge pier, the air blows through the high tower, the chimney, the electric wire and the like, and then a Karman vortex street is formed. In addition, when the karman vortex street occurs, the fluid can generate a periodic alternating transverse force action on two sides behind the object, if the natural frequency of the object is consistent with the frequency of the force, the object can be damaged, the strait bridge is damaged by the vortex street, and the karman canyon bridge damage event in the United states is known to be caused by the karman vortex street.

Disclosure of Invention

In view of the above, the present application provides a power generation assembly and a dual-elastic water bag internal flow energy power generation device, which generate power by using the alternating force generated by karman vortex street, and have a very great practical application value.

According to a first aspect of the present disclosure, a power generation assembly is presented, comprising:

the rotating ring is sleeved on the pier;

the left water bag and the right water bag are respectively fixed on the rotating ring and are mutually communicated through a pipeline;

a turbine disposed in the conduit;

and the tail fin is welded on the rotating ring.

Optionally, the left and right water bags are equal in volume.

Optionally, the left water bag and the right water bag are both made of elastic materials.

According to a second aspect of the present disclosure, there is provided a dual-elasticity water bag internal flow energy power generation device, comprising:

the power generation assembly is the power generation assembly provided by the disclosure;

the floating body ring is sleeved on the pier and is positioned above the rotating ring;

the limiting ring is sleeved on the pier and is positioned below the rotating ring;

and the pull rope is arranged between the floating body ring and the rotating ring and is used for connecting the floating body and the rotating ring.

Optionally, the turbine is a wils water turbine.

The device is installed on a bridge pier of a large bridge, when water flows through the bridge pier, alternate vortexes are generated on two sides of the bridge pier, namely, the periodic alternating transverse force action of the Karman vortex street is exerted, and then alternate extrusion action is generated on the left water sac and the right water sac in the device, so that water in the left water sac and the right water sac shuttles back and forth in the pipeline, the impeller of the turbine in the pipeline rotates, and finally the device generates power continuously.

The device disclosed by the invention is skillfully combined with a bridge pier of a large bridge, when water flows through the bridge pier, alternate vortexes, namely, the periodic alternating transverse force action of the Karman vortex street, can be generated on two sides of the bridge pier, and further can generate alternate extrusion action on the left water sac and the right water sac in the device, so that water in the left water sac and the right water sac can shuttle back and forth, the impeller of a turbine in a pipeline rotates, and finally, the device can generate power continuously. The floating body in the device can move up and down according to different water level heights, so that the water flow under different water level heights can be optimally utilized. The device can utilize wind energy in the nature to realize power generation even under the condition that the water level is completely faded.

Additional aspects and advantages of the disclosure 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 disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is clear that the drawings in the following description are only some embodiments of the disclosure, and that for a person skilled in the art, other drawings can also be derived from them without inventive effort.

Fig. 1 is a schematic view illustrating a double-elastic water bag internal flow energy power generation device using a karman vortex street according to an embodiment of the present disclosure.

FIG. 2 is a schematic view of an installation location of a duct and turbine according to one embodiment of the present disclosure.

FIG. 3 is a schematic view of the present disclosure as water flows through a pier, according to one embodiment of the present disclosure;

FIG. 4 is a schematic diagram illustrating the alternating vortices generated when water flows through a pier to form a karman vortex street, according to one embodiment of the present disclosure.

Fig. 5 is a schematic diagram illustrating a left water bladder being squeezed by a left vortex as water flows through a pier according to one embodiment of the present disclosure.

Fig. 6 is a schematic diagram illustrating a right water bladder being squeezed by a right vortex when water flows through a pier according to an embodiment of the present disclosure.

FIG. 7 is a schematic view of the extreme position shown moving downward during a tidal fall, according to one embodiment of the present disclosure.

In fig. 1-7, 1 is a rotating ring, 2 is a left water bag, 3 is a right water bag, 4 is a tail wing, 5 is a floating body ring, 6 is a pull rope, 7 is a limit ring, 8 is a pipeline, 9 is a turbine, 10 is a pier, and 11 is a bridge floor.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic structural diagram illustrating a power generation assembly according to an embodiment of the present disclosure, including:

the rotary ring 1 is sleeved on the pier 10;

the left water bag 2 and the right water bag 3 are respectively fixed on the rotating ring 1, and the left water bag 2 and the right water bag 3 are mutually communicated through a pipeline 8;

a turbine 9, said turbine 9 being placed in said duct 8;

and the tail wing 4 is welded on the rotating ring 1.

In one embodiment, the left water bag 2 and the right water bag 3 have equal volumes.

In one embodiment, the left water bag 2 and the right water bag 3 are both made of elastic materials.

According to the embodiment of the present disclosure, an internal flow energy power generation device of a double-elastic water bag is shown, as shown in fig. 1, including:

a power generation assembly, the power generation assembly being the power generation assembly of fig. 1 of the present disclosure;

the floating body ring 5 is sleeved on the pier 10, and the floating body ring 5 is positioned above the rotating ring 1;

the limiting ring 7 is sleeved on the pier, and the limiting ring 7 is positioned below the rotating ring;

and the pull rope 6 is arranged between the floating body ring 5 and the rotating ring 1, and is used for connecting the floating body 5 and the rotating ring 1.

In one embodiment, the turbine 9 is a wils water turbine.

The double-elastic water bag internal flow energy power generation device provided by the embodiment of the disclosure has the advantages that:

1. the device is ingeniously combined with the bridge pier, a Karman vortex street can be formed when water flows through the bridge pier, and then alternating transverse force is generated to alternately extrude the left water sac and the right water sac of the device, so that the turbine impeller between the left water sac and the right water sac rotates, and finally continuous power generation of the device is realized.

2. The device disclosed by the invention can move up and down according to different water level heights by utilizing the floating body, so that the water flow under different water level heights can be optimally utilized; in addition, the device can utilize wind energy in the nature to realize power generation even when the water level is completely faded.

3. The device disclosed by the invention provides the mode of combining with the bridge pier, so that the damage of the alternating transverse force generated by the Karman vortex street to the bridge pier is reduced while power is generated, and the service life of the bridge is further prolonged.

The working principle and the working process of the double-elastic water bag internal flow energy power generation device according to the embodiment of the present disclosure are described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the rotating ring 1 is fitted around a bridge pier 10 and can rotate relative to the bridge pier 10.

The tail wing 4 is a rectangular plate with small thickness and long length, is welded with the rotating ring 1, and is always kept parallel to the flow direction of water flow in the flow process of the water flow.

The left water bag 2 and the right water bag 3 are the same and are made of elastic materials, and the left water bag and the right water bag are filled with water. The left water bag 2 is arranged on the left side of the tail wing 4 and fixed on the rotating ring 1; the right water bag 3 is arranged at the right side of the tail wing 4 and fixed on the rotating ring 1.

The floating body ring 5 is made of soft rubber in a water-tight mode, air is filled in the floating body ring, the floating body ring 5 is sleeved on the pier 10, and the floating body ring 5 is arranged above the rotating ring 1.

The pull rope 6 is used for connecting the floating body 5 and the rotating ring 1, so that the floating body 5 and the rotating ring 1 can synchronously move up and down.

The limiting plate 7 is arranged at the bottom of the pier 10 and used for limiting the maximum downward moving position of the device.

As shown in fig. 2, the pipe 8 is connected between the left water bag 2 and the right water bag 3, and water in the left and right water bags can flow back and forth in the pipe 8.

The Wils water turbine 9 is arranged in the middle of the pipeline 8 and can be directly connected with a rotating shaft of a generator, the generator adopts a permanent magnet generator and is directly installed in a bearing cover of the turbine, the turbine adopts symmetrical wing profiles, and when water flows pass through the two sides of the turbine, the impeller can be rotated, so that the generator generates electricity.

As shown in fig. 3 and 4, when water flows through the pier 10, alternating vortices are generated on both sides of the pier 10, i.e., a periodic alternating transverse force of the karman vortex street, and the generated alternating vortices further generate an alternating squeezing action on the left and right water pockets in the device.

When the left vortex extrudes the left water bag 2, as shown in fig. 5, the left water bag 2 is compressed and contracted, water in the left water bag 2 flows into the right water bag 3 through the pipeline 8, and water flow shuttled in the pipeline 8 drives the turbine impeller to rotate, so that the power generation of the generator is realized; when the right vortex extrudes the right water bag 3, as shown in fig. 6, the right water bag 3 is compressed and contracted, water in the right water bag 3 flows into the left water bag 2 through the pipeline 8, and water flowing back and forth in the pipeline 8 drives the turbine impeller to rotate, so that the power generation of the generator is realized. In effect, the alternating vortices generated by the water flow alternately squeeze the left and right bladders so that the water flow in the pipe 8 shuttles back and forth for continuous power output by the wels water turbine 9.

When the water level of the device rises or falls, the floating body ring 5 in the device can move up and down according to different water level heights, so that the optimal utilization of water flow energy under different water level heights is realized.

If the water level completely fades, as shown in fig. 7, the rotating ring 1 moves downwards, stops moving when moving to the limiting plate 7, and at the moment, if a wind energy condition exists, the wind energy can be utilized in the device, when wind blows over the bridge pier 10, alternate vortexes, namely, the periodic alternating transverse force action of the karman vortex street, can be generated on two sides of the bridge pier 10, and further, alternate extrusion action can be generated on the left and right water bags in the device, and the power generation principle of the device is the same as that of the water flow power generation.

The above description is only a preferred embodiment of the present disclosure, but is not limited by the above embodiments, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the disclosure, and such modifications and adaptations are intended to be within the scope of the disclosure.

Claims (5)

1. An electricity generating assembly, comprising:

the rotating ring is sleeved on the bridge pier;

the left water bag and the right water bag are respectively fixed on the rotating ring and are mutually communicated through a pipeline;

a turbine disposed in the conduit;

and the tail fin is welded on the rotating ring.

2. The power generation assembly of claim 1, wherein the left and right water bladders are equal in volume.

3. The power generation assembly of claim 1, wherein the left and right water bladders are made of an elastic material.

4. The power generation assembly of claim 1, wherein the turbine is a wils water turbine.

5. A double-elastic water bag internal flow energy power generation device is characterized by comprising:

a power generation assembly of claim 1 or 2;

the floating body ring is sleeved on the pier and is positioned above the rotating ring;

the limiting ring is sleeved on the pier and is positioned below the rotating ring;

and the pull rope is arranged between the floating body ring and the rotating ring and is used for connecting the floating body and the rotating ring.

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