CN212690217U

CN212690217U - Impeller and control valve capable of generating power

Info

Publication number: CN212690217U
Application number: CN202021295678.4U
Authority: CN
Inventors: 谢玉东; 张新标; 王勇
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-03-12
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses an impeller and control valve that can generate electricity has solved among the prior art impeller and has overcome the poor problem of fluid resistance because of the structure setting exists, has the beneficial effect of the rotary motion of effectively guaranteeing the impeller under the fluid effect, and concrete scheme is as follows: the utility model provides an impeller, includes the pivot, and pivot week side is equipped with at least one blade, and each blade is the bionic blade of whale, and the one end width that blade and pivot are connected is greater than the width of the other end, and from the one end to the other end that blade and pivot are connected, and the blade width progressively reduces after increasing earlier, and the blade is kept away from the one end bending setting of pivot.

Description

Impeller and control valve capable of generating power

Technical Field

The utility model belongs to the technical field of the control valve technique and specifically relates to an impeller and a control valve that can generate electricity.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The impeller can be used for wind generating sets and can also be used for conveying liquid, the impeller structure generally comprises a plurality of blades, the impeller blades are generally linear or curved integrally, and the inventor finds that the blade structure has poor capability of overcoming fluid resistance in the whole operation process.

Secondly, the control valve is widely applied to various fluid control occasions, such as west-east gas transportation engineering, south-north water transfer engineering, international petroleum and natural gas transportation and the like. The executing mechanism of the control valve with the automatic control function mainly comprises electric drive, pneumatic drive and electro-hydraulic drive, and the precondition for maintaining the normal work of the control valve is that electric energy is continuously supplied to the control valve. However, in some remote areas, the control valve is located in an area remote from the grid, and it is too costly to additionally run cables for the control valve. At present, the control valve under the condition is mainly solved by solar power generation. However, in some special areas, such as some southern cities in china, the rainy season is long, and the solar energy cannot normally provide enough electric energy for the control valve, which affects the action of the control valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an impeller, for the bionical blade of whale, also effectively guarantee the rotary motion of impeller, overcome fluidic resistance to the not enough of prior art existence.

A second object is to provide a control valve capable of generating electricity, which is capable of supplying electricity to an actuator by using fluid in the valve, thereby assisting solar energy in supplying electricity to the control valve.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

the utility model provides an impeller, includes the pivot, and pivot week side is equipped with at least one blade, and each blade is the bionic blade of whale, and the one end width that blade and pivot are connected is greater than the width of the other end, and from the one end to the other end that blade and pivot are connected, and the blade width progressively reduces after increasing earlier, and the blade is kept away from the one end bending setting of pivot.

The blades of the impeller are bionic blades of whale, one end of each blade is wide in size, one side of each wide blade is a main part for generating lift force, the blades can have high lift force coefficients due to the fact that one end of each blade is bent, the rotating motion of the impeller is effectively guaranteed under the action of fluid, the whole blades are good in streamline form, the resistance of the fluid can be effectively overcome in the rotating process of the impeller, and the thrust of the fluid to the blades is guaranteed.

In the impeller, one end of the blade is connected with the rotating shaft through the connecting plate, the connecting plate and the blade can be integrally manufactured, the connecting plate can be inserted into the periphery of the rotating shaft, and the connecting plate is welded with the periphery of the rotating shaft.

An impeller as described above, said blades being divided in their span-wise direction into a plurality of micro-segments, each micro-segment being a lutein.

An impeller as described above, the length of the leaf element gradually decreases from one end near the rotating shaft to the other end in order to follow the shape of a whale head and tail.

According to the impeller, the length of the chlorophyll in the nth section is 70% -95% of that of the chlorophyll in the (n-1) th section, and n is greater than or equal to 2.

According to the impeller, the included angle of each of the blades from one end close to the rotating shaft to the other end is gradually increased, so that the tail part of each blade is tilted upwards relative to the head part of each blade, and resistance generated by fluid is reduced in the rotating process, wherein the fluid is water in general.

In a second aspect, the invention further provides a control valve capable of generating power, which comprises a valve body and an actuating mechanism, wherein the valve body is provided with an inlet and an outlet, the impeller is installed in the valve body inflow channel, the impeller is a first impeller, the first impeller is installed at the tail end of the valve body inflow channel, the first impeller is installed through a first shaft, the first shaft penetrates through the valve body and is connected with a power generation device, and the power generation device is connected with the actuating mechanism; the first impeller is connected with the power generation device, so that the energy consumption in the process of converting water energy into mechanical energy can be reduced, and the resource utilization rate is improved;

the control valve capable of generating power further comprises a second impeller arranged outside the valve body, and the second impeller is connected with the power generation device through a second shaft.

In the prior art, an actuating mechanism is powered by solar energy to drive the on-off of a control valve, is arranged in a valve body through a first impeller, and generates electric energy through a power generation device when fluid passes through the first impeller, and is used for powering the actuating mechanism and assisting the solar energy in power supply; through the second impeller, the wind energy is equivalently utilized, even if no fluid passes through the control valve, the wind energy can be used for generating electricity, and the wind energy and the water energy are matched with each other to ensure the power supply of the control valve.

According to the control valve capable of generating power, the first shaft is connected with the first driving wheel, the second shaft is connected with the second driving wheel, the first driving wheel is connected with the first driven wheel, the second driving wheel is connected with the second driven wheel, and the two driven wheels are both internally engaged ratchet mechanisms.

In the control valve capable of generating power, the two driven wheels are connected with the power generation device through the third shaft. The moment superposes when making two action wheels rotate clockwise simultaneously, improves the electric energy storage effect.

In addition, the inflow channel is streamline, so that the flow resistance of the fluid is reduced, the flow rate change is smooth, the inflow channel is in a bell mouth shape at the position where the first impeller is arranged, and the position where the first impeller is located is the position where the sectional area of the inflow channel is the smallest, so that the flow rate of the fluid at the position of the first impeller is the largest, the torque of the water wheel is increased, and the power generation efficiency is improved; in order to ensure the flow velocity of the fluid at the first impeller, the inlet of the valve body is positioned at the position where the cross section area of the inflow runner is the largest, and the ratio of the cross section area at the position where the cross section area of the inflow runner is the largest to the cross section area at the position where the cross section area is the smallest is larger than 2.

Above-mentioned the utility model has the advantages as follows:

1) the utility model discloses an establish the blade of impeller into whale bionic blade, the blade is streamlined better, at the rotatory in-process of impeller, can effectively overcome fluidic resistance, one end size broad, one side of broad is for producing the main part of lift, and the crooked setting of blade one end can make the blade have higher lift coefficient in addition, effectively guarantees the rotary motion of impeller under the fluidic action, is applied to the control valve with this impeller in, improves the generating efficiency.

2) In order to better realize the bionic of the shape of whale, the blade is divided into a plurality of phylloids, the length of each phylloid is gradually reduced, and the bending angle of each phylloid is gradually increased, so that the end, far away from the rotating shaft, of the blade is enabled to be tilted upwards relative to the other end, and the resistance generated by fluid is reduced in the rotating process.

3) According to the control valve, the first impeller is arranged in the valve body, when fluid passes through the first impeller, the first impeller is pushed to rotate and is connected with the power generation device through the first shaft and the transmission mechanism, the power generation device generates electric energy, mechanical energy of the first impeller is converted into electric energy, and the electric energy is equivalent to water energy generated by flowing of the fluid in the valve and used for supplying power to the actuating mechanism and assisting solar energy to supply power, so that the power consumption requirement of the control valve is met.

4) The utility model discloses a second impeller locates the outside of valve body, and the second impeller passes through wind-force and rotates to be connected with power generation facility through secondary shaft and drive mechanism, wind energy and hydroenergy mutually support like this, guarantee the power supply to the control valve.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a top view of a first impeller according to one or more embodiments of the present invention.

Fig. 2 is a first impeller chlorophyll distribution diagram according to one or more embodiments of the present invention.

Fig. 3 is a first impeller morphology evolution diagram in accordance with one or more embodiments of the present invention.

Fig. 4 is a schematic diagram of a control valve that may generate power according to one or more embodiments of the present disclosure.

Fig. 5 is a schematic diagram of a transmission mechanism according to one or more embodiments of the present invention.

In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.

Wherein: 1. the device comprises an actuating mechanism, 2, a valve body, 3, a first impeller, 4, an inflow flow channel, 5, a bearing, 6, a first driven wheel, 7, a second driven wheel, 8, a first driving wheel, 9, a second driving wheel, 10, a first chain, 11, a second chain, 12, a first conical gear, 13, a generator, 14, a capacitance element, 15, a second conical gear, 16, a second impeller, 17, a rotating shaft, 18, a connecting plate, 19 and blades.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate correspondence with the upper, lower, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the present invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Just as the background art introduces, the partial control valve of prior art can only pass through solar energy power generation's problem because of keeping away from the electric wire netting, in order to solve above-mentioned technical problem, the utility model provides an impeller and can generate electricity's control valve.

Example one

The utility model discloses an among the typical embodiment, refer to fig. 1, an impeller, including pivot 17, pivot 17 week side is equipped with at least one blade 19, and each blade is the bionic blade of whale, and the one end width that the blade is connected with the pivot is greater than the width of the other end, and from one end to the other end that blade and pivot are connected, the blade width progressively reduces after the increase earlier, and the blade is kept away from the crooked setting of one end of pivot.

In some examples, the number of blades may be 3 or 4, and preferably, the number of blades is 3. The width of one side of each blade, which is connected with the rotating shaft, is larger than that of the other side of each blade, so that the stress area of the part, namely the front end part, of each blade, which is close to the rotating shaft, is larger and is a main part for generating lift force, the lift force enables the impeller to rotate around the rotating shaft, and the blades have higher lift coefficient by simulating the bending structure of the tail swing of whales.

In order to facilitate the connection of the vane and the rotating shaft, one end of the vane 19 is connected with the rotating shaft 17 through a connecting plate 18, the connecting plate and the vane can be manufactured integrally, the connecting plate can be inserted to the peripheral side of the rotating shaft, and the connecting plate is connected with the peripheral side of the rotating shaft in a welding mode.

A whale contour curve is extracted to carry out shape deduction reconstruction, a blade is divided into a plurality of micro sections along the spanwise direction, each micro section is a phyllotoxin, specifically, the phyllotoxin can be divided into 14 sections, the contour 0 is the overall contour of the blade, the contours 1-14 are leaf phyllotoxin contours, the blades are stacked according to the rule that the phyllotoxins gradually become smaller from front to back, the tail portions are gradually leveled, and the included angle between the leaf phyllotoxins and the horizontal plane gradually becomes larger, and the whale tail swing swimming state is simulated.

In order to follow the change of the big head and the small tail of the whale, the length of the phyllanthin is gradually reduced from one end close to the rotating shaft to the other end of the blade.

The length of the phyllanthin of the nth section is 70-95 percent of that of the phyllanthin of the (n-1) th section, and n is more than or equal to 2. Specifically, in this embodiment, the lengths of the phyllins 1 to 4 are longer, the length ratio of each phyllin to the previous phyllin is greater than 95%, the lengths of the phyllins 5 to 14 are gradually reduced, the length ratio of each phyllin to the previous phyllin is 75% to 85%, and the length ratio of the phyllin 5 to the phyllin 4 is 85% to 90%; and the included angle of the phyllanthus gradually increases from one end close to the rotating shaft to the other end of the blade relative to the horizontal line.

And the width of the section 1-4 of the phylline close to the rotating shaft is larger than that of any section 5-14, and the width is gradually increased from the section 1-4 of the phylline and gradually reduced from the section 5-14 of the phylline.

The blade is from one end that is close to the pivot to the other end, and the contained angle of phyllanthus for the water line is progressively increased gradually for the afterbody of blade upwarps for the head, is convenient for reduce the resistance that fluid produced in rotatory in-process, and the fluid is water under general.

The blades are whale bionic blades, so that the blades are good in streamline form, one side of each blade is wider than the other side of each blade, one end close to the rotating shaft is a main part for generating lift force, the impeller is convenient to generate the lift force in the working process, the tail of each blade is upwarped, the blades can have high lift force coefficients, and therefore in the rotating process of the impeller, the resistance of fluid can be effectively overcome, and the thrust of the fluid to the blades is guaranteed.

Example two

A control valve capable of generating power comprises a valve body 2 and an actuating mechanism, wherein the valve body 2 is provided with an inlet and an outlet, a first impeller 3 is installed in an inflow flow channel 4 of the valve body 2, the first impeller 3 is installed through a first shaft, the first shaft is a rotating shaft mentioned in the embodiment, the first shaft penetrates through the valve body 2 and is connected with a power generation device, and the power generation device is connected with the actuating mechanism; the second impeller 16 is arranged outside the valve body 2, and the second impeller 16 is connected to the power generation device through a second shaft.

The first impeller 3 and the second impeller 16 are impellers, and a plurality of blades are evenly distributed on the two impellers, when the impellers are positioned in a flow field, the thrust perpendicular to the central shaft can be decomposed by the force of water or wind acting on the blades, and therefore the blades are driven to rotate to collect water energy or wind energy. The blades drive the corresponding central shaft to rotate, and the transmission mechanism drives the generator rotor to rotate to generate electric energy.

In this embodiment, the first impeller 3 is a water wheel, the impeller structure described in the first embodiment is adopted, the first shaft is a rotating shaft described in the first embodiment, the second impeller is a wind wheel, and the wind wheel is not limited in structure.

The transmission mechanism is connected with the impeller and the power generation device, and transmits the mechanical energy of the impeller to the power generation device, wherein the power generation device is a generator in the embodiment.

It should be explained that, in this embodiment, the first impeller 3 is installed in the control valve, a fluid can flow through the control valve, the fluid can be water, a valve rod of the control valve is driven by an actuating mechanism such as a motor, the control valve includes a valve body 2, the valve body 2 has an inlet and an outlet, the first impeller 3 is installed at a valve seat of the valve body 2, in this embodiment, the first impeller 3 is installed at the end of the inflow channel 4 through a first shaft, the inflow channel and the valve body are adaptively adjusted, other structures can be adopted as the existing structures, and the inflow channel is from the inlet of the valve body to the valve seat, and the outflow channel is from the valve seat to the outlet of the valve body.

Referring to fig. 4, when a fluid such as water flows from the inlet of the control valve, the blades of the first impeller 3 are driven to rotate by the flow of the inflow channel 4 and the outflow channel, the first impeller blades drive the first shaft connected with the first impeller blades to rotate, the kinetic energy of the fluid is converted into mechanical energy, and in order to realize power generation, the first shaft penetrates through the valve body and is matched with the valve body through the bearing 5. Similarly, when the blades of the second impeller 16 are driven by wind, the blades can drive a second shaft connected with the blades to rotate, the first shaft and the second shaft are parallel to each other, the length of the second shaft is longer than that of the first shaft, and the second shaft converts the rotation of a horizontal shaft into the rotation of a vertical shaft through a pair of meshed second bevel gears 15, so that the wind energy is converted into mechanical energy.

Under the first axle rotating state, need to guarantee that the inside fluid of valve body does not leak, inside the outside pollutant of valve body does not get into the valve body simultaneously, uses rotation axis lip seal circle to its sealed, and rotation axis lip seal circle sealing performance is good, simple structure, easily installation dismantlement. When the control valve is in a low-speed low-pressure working condition, the lip-shaped sealing ring of the rotating shaft can be made of rubber as a main material; when the control valve is in a high-speed and high-pressure working condition, the combination of rubber and modified PTFE (polytetrafluoroethylene) materials can be selected to improve the sealing performance, and the lip-shaped sealing ring of the rotating shaft is arranged at the position of the bearing 5 and generates relative motion with the first shaft.

In addition, in order to facilitate the entire installation, the second driven wheel 7 is provided close to the first conical gear 12 with respect to the first driven wheel 6, and the connection with the power generation device is achieved by the first conical gear 12.

The transmission mechanism comprises a first driving wheel and a first driven wheel which are connected through a first chain 10, and a second driving wheel and a second driven wheel which are connected through a second chain 11, wherein the first shaft and the second shaft respectively drive the first driving wheel 8 and the second driving wheel 9 which are connected with the first shaft to rotate, and further drive the corresponding driven wheels to move respectively.

Referring to fig. 5, a first driving wheel 8 is connected with a first impeller 3 through a first shaft, a second driving wheel 9 is connected with a second impeller 16 through a second shaft, the two driving wheels respectively drive a first driven wheel 6 and a second driven wheel 7 to rotate through chain transmission, the driven wheels are the existing inner meshing ratchet mechanisms, it can be guaranteed that the two driven wheels keep relative independence when the steering directions are inconsistent, a conical gear can change the transmission direction, the two driven wheels are coaxially arranged and are connected with a third shaft together, and therefore moment superposition is achieved when the two driving wheels simultaneously rotate clockwise.

When the first driving wheel 8 rotates clockwise and the second driving wheel 9 does not rotate, the first driving wheel 8 drives the first driven wheel 6 to rotate clockwise, so as to drive the first driven wheel to rotate. The inner wheel of the first driven wheel 6 drives the inner wheel of the second driven wheel 7 to rotate through the third shaft, and due to the one-way transmission effect of the inner meshing ratchet mechanism, the inner wheel of the second driven wheel 7 cannot drive the outer wheel to rotate, so that the second driven wheel 16 is prevented from being driven to rotate to become a load; similarly, when the second driving wheel 9 rotates clockwise, the first driving wheel 8 does not rotate; when the two driving wheels rotate clockwise simultaneously, the moments are superposed; when the driving wheel rotates anticlockwise, the driven wheel is in an idle running state.

The two driven wheels are connected with a pair of meshed first conical gears 12 through the end parts of a third shaft, the vertical shaft rotation is converted into horizontal shaft rotation, and the first conical gears 12 are connected with a rotor of a generator 13 through a fourth shaft, so that mechanical energy is converted into electric energy. One path of a power supply line of the generator 13 is connected with the actuating mechanism 1 of the control valve, so that the power supply requirement of the actuating mechanism is ensured; the other path is connected with an electric power storage mechanism, the electric power storage mechanism comprises a capacitor element 14, electric energy is stored, and power can be supplied to external electric appliances.

Referring to fig. 4, the inflow channel between the inlet of the valve body and the first impeller 3 is designed to be streamline, and the turning part of the streamline inflow channel is in gentle transition, so that the flow resistance of the fluid can be reduced, the flow rate change is gentle, and the flow capacity is increased. The inflow channel 4 at the first impeller 3 is in a bell mouth shape, the first impeller 3 is at the position with the minimum cross section area of the inflow channel, and the continuous equation S is used₁v₁＝S₂v₂And the fluid flow velocity at the first impeller 3 is the largest, so that the torque of the first impeller 3 is increased, and the power generation efficiency is improved. Thus, the inlet 4-3 of the valve body is the position with the largest cross section of the inflow runner 4, and the cross section is S₁The position 4-4 of the first impeller is the minimum section area of the inflow runner 4, and the section area is S₂，S₁/S₂≈2.7。

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an impeller, its characterized in that, includes the pivot, and pivot week side is equipped with at least one blade, and each blade is the bionic blade of whale, and the one end width that blade and pivot are connected is greater than the width of the other end, and from the one end to the other end that blade and pivot are connected, and the blade width is progressively increased earlier and is progressively reduced later, and the blade is kept away from the one end bending setting of pivot.

2. An impeller according to claim 1, wherein one end of said vane is connected to said shaft by a connecting plate.

3. An impeller according to claim 1, wherein the blade is divided in its span-wise direction into a number of micro-segments, each micro-segment being a lutein.

4. An impeller according to claim 3, wherein the length of the leaflets decreases progressively from one end adjacent the shaft to the other.

5. The impeller according to claim 4, wherein the length of the phylline in the nth section is 70-95% of that of the phylline in the n-1 st section, and n is greater than or equal to 2.

6. An impeller according to claim 4, wherein the angle of the said phyllotaxis increases gradually from one end near the said axis to the other.

7. A control valve capable of generating power, which is characterized by comprising a valve body and an actuating mechanism, wherein the valve body is provided with an inlet and an outlet, an impeller as claimed in any one of claims 1 to 6 is installed in an inflow channel of the valve body, the impeller is a first impeller, the first impeller is installed at the tail end of the inflow channel of the valve body, the first impeller is installed through a first shaft, the first shaft penetrates through the valve body and is connected with a power generation device, and the power generation device is connected with the actuating mechanism.

8. A power generating control valve as claimed in claim 7, further comprising a second impeller disposed outside the valve body, the second impeller being connected to the power generating means via a second shaft.

9. The power generation control valve as claimed in claim 8, wherein the first shaft is connected to a first driving wheel, the second shaft is connected to a second driving wheel, the first driving wheel is connected to a first driven wheel, the second driving wheel is connected to a second driven wheel, and both driven wheels are an inter-engaging ratchet mechanism.

10. A control valve as claimed in claim 9, wherein the two driven wheels are connected together to the power generating means by a third shaft.