WO2021129657A1 - Turbine à air et dispositif de production d'énergie - Google Patents

Turbine à air et dispositif de production d'énergie Download PDF

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Publication number
WO2021129657A1
WO2021129657A1 PCT/CN2020/138594 CN2020138594W WO2021129657A1 WO 2021129657 A1 WO2021129657 A1 WO 2021129657A1 CN 2020138594 W CN2020138594 W CN 2020138594W WO 2021129657 A1 WO2021129657 A1 WO 2021129657A1
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WO
WIPO (PCT)
Prior art keywords
air
rotor
air chamber
valve
chamber
Prior art date
Application number
PCT/CN2020/138594
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English (en)
Chinese (zh)
Inventor
范景润
Original Assignee
杭州巨浪能源科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201911342564.2A external-priority patent/CN111005837A/zh
Priority claimed from CN201922337562.6U external-priority patent/CN212429078U/zh
Application filed by 杭州巨浪能源科技有限公司 filed Critical 杭州巨浪能源科技有限公司
Publication of WO2021129657A1 publication Critical patent/WO2021129657A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/24—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy to produce a flow of air, e.g. to drive an air turbine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • At least one embodiment of the present disclosure relates to an air turbine and a power generation device.
  • the current wave energy development technology (here refers to the conversion of wave energy into electric energy) mainly includes the oscillating float type, the wave-over-wave type and the oscillating water column type.
  • the oscillating float type relies on wave energy to drive the float to transfer the wave energy to the energy conversion device such as a hydraulic motor to achieve power generation;
  • the wave-over type is to guide the wave to a high place, and then let the sea water pass through a low-level hydraulic turbine for energy Conversion, the kinetic energy of seawater is finally converted into electric energy;
  • the oscillating water column type is to convert wave energy into kinetic energy of gas, and then finally convert the kinetic energy of gas into electric energy to realize power generation.
  • At least one embodiment of the present disclosure provides an air turbine, which includes an air chamber, an air valve, and a rotor.
  • the air chamber includes a first opening communicating with the atmosphere; the air pressure in the air chamber can be adjusted, and the difference between the air pressure in the air chamber and the atmospheric pressure includes a first air pressure difference and a second air pressure difference; the air valve is connected to the air chamber and is configured to be in the first
  • the air chamber is opened under the action of the air pressure difference to make the air chamber communicate with the atmosphere through the air valve and the first opening to form a first air flow, and closed under the action of the second air pressure difference to make the air chamber communicate with the atmosphere through the first opening.
  • the first air pressure difference and the second air pressure difference are in opposite directions; the rotor is configured to rotate under the drive of the second air flow.
  • the air valve includes a valve plate and a rectifying plate.
  • the valve plate is fixed between the air chamber and the atmosphere, and includes a first plate surface and a second plate surface opposite to the first plate surface; the first plate surface faces the first air flow through the air
  • the valve plate has a through hole that penetrates the valve plate in a direction from the first plate surface to the second plate surface;
  • the rectifier is arranged on the The second plate surface of the valve plate; the air pressure in the air chamber is greater than the atmospheric pressure to generate the first air pressure difference, and the rectifier is configured to leave the through hole under the action of the first air pressure difference
  • the air valve is opened; the air pressure in the air chamber is less than the atmospheric pressure to generate the second air pressure difference, and the rectifier is configured to seal the through hole under the action of the second air pressure difference so that the The air valve is closed.
  • the air turbine provided in at least one embodiment of the present disclosure further includes an air duct.
  • the air duct includes a first end and a second end; the rotor is located in the air duct, and the first end of the air duct is connected to the atmosphere.
  • the second end of the air duct is connected to the first opening of the air chamber so that the air duct is in communication with the air chamber.
  • the air turbine further includes a valve box;
  • the valve box includes a first end, a first end, a second end, and a side wall;
  • the first end has a connection A first opening to the second end of the air duct to allow the valve box to communicate with the air duct;
  • the second end is opposite to the first end and has a second opening;
  • the second opening is connected to the The first opening of the air chamber allows the valve box to communicate with the air chamber;
  • the side wall is located between the first end of the valve box and the second end of the valve box and includes the valve plate.
  • the second end of the air duct is directly connected to the first opening of the air chamber;
  • the air chamber further includes a second opening, and the air valve It includes a valve box,
  • the valve box includes a first end, a second end and a side wall; the first end is isolated from the atmosphere; the second end is opposite to the first end and has a second opening; the second end of the valve box The opening is connected to the second opening of the air chamber to allow the valve box to communicate with the air chamber;
  • the side wall is located between the first end and the second end and includes the valve plate.
  • the valve box includes a plurality of the side walls connected to each other, and each of the plurality of side walls includes the valve plate.
  • the first plate surface faces the atmosphere; the air pressure in the air chamber is greater than the atmospheric pressure to form the second air pressure difference, and the gas in the air chamber After flowing through the rotor, it enters the atmosphere to form the second airflow; the air pressure in the air chamber is less than the atmospheric pressure to form the first air pressure difference, and the air in the atmosphere passes through the air valve and the air duct respectively
  • the first end of the air chamber enters the air chamber to form the first air flow; or, the second plate surface faces the atmosphere; the air pressure in the air chamber is less than the atmospheric pressure to form the second air pressure difference, the atmosphere
  • the gas in the gas chamber flows through the rotor and then enters the gas chamber to form the second gas flow; the gas pressure in the gas chamber is greater than the atmospheric pressure to form the first gas pressure, and the gas in the gas chamber respectively passes through the The air valve and the first end of the air guide tube enter the atmosphere to form the first air flow.
  • the rectifier includes a first part and a second part that are connected to each other; the first part is at least partially fixed to the valve plate, and the second part It is configured to leave the through hole under the action of the first air pressure difference and close the through hole under the action of the second air pressure difference.
  • the air duct is a straight pipe extending in a direction from the first opening of the air chamber to the rotor;
  • the direction of a part to the second part of the rectifier is parallel to the extending direction of the air duct.
  • the first part and the second part are integrally formed, or the first part is connected to the second part through a connecting member.
  • the material of the rectifier sheet is metal, and the thickness of the rectifier sheet in the direction from the first plate surface to the second plate surface is It is 1mm-3mm; or, the material of the rectifier is rubber or silicone, and the thickness is 1mm-5mm.
  • the valve plate further includes a support frame, the support frame is located in the through hole, and the support frame includes at least a pair of opposite ends. Both ends are connected with the inner wall of the through hole, and the support frame divides the through hole into a plurality of parts that are not connected to each other.
  • the support frame has a cross shape or a rice shape.
  • the valve plate has a plurality of the through holes; corresponding to each through hole of the plurality of through holes, a rectifier plate is provided, Alternatively, n adjacent through holes in the plurality of through holes share one rectifier, and n is a positive integer greater than or equal to 2.
  • the rotor includes a turntable and a plurality of rotating blades; a plurality of rotating blades are arranged on the edge of the turntable around the turntable, wherein the plurality of rotating blades
  • Each of the two rotating blades includes a first surface, the first surface is configured to receive the second air flow, and the plurality of rotating blades are configured to rotate under the action of the second air flow to drive the turntable to rotate; At least part of the first surface of each of the plurality of rotating blades faces the direction of the second air flow.
  • the rotor further includes a first shroud that surrounds the plurality of rotating blades and is connected to the plurality of rotating blades; In the direction of the plurality of rotating blades, the first shroud is a closed ring; the width of the first shroud in the axial direction of the rotor is greater than or equal to the thickness of the turntable in the axial direction of the rotor , The axial direction of the rotor is perpendicular to the disk surface of the turntable.
  • the air turbine provided by at least one embodiment of the present disclosure further includes a stator, which is located on one side of the rotor so as to be configured so that the second airflow flows through the stator and then flows through the rotor, and It includes a wheel disc and a plurality of guide vanes; the wheel disc includes a central area and an edge area surrounding the central area; a plurality of guide vanes are located in the edge area, are arranged around the central area, and are configured to align the first The second air flow is guided to the rotor.
  • a stator which is located on one side of the rotor so as to be configured so that the second airflow flows through the stator and then flows through the rotor, and It includes a wheel disc and a plurality of guide vanes; the wheel disc includes a central area and an edge area surrounding the central area; a plurality of guide vanes are located in the edge area, are arranged around the central area, and are configured to align the first The second air flow is guided to the rotor.
  • the turntable includes a first shaft hole and a second shaft hole that penetrate each other; the rotor further includes a rotor shaft, a shaft turntable, a first bearing, and a second shaft.
  • the rotor shaft is installed in the first shaft hole and includes a first end and a second end opposite to the first end, the first end of the rotor shaft is located on the first side of the shaft turntable close to the stator , The second end of the rotor shaft is located on the second side of the shaft turntable away from the stator;
  • the shaft turntable is fixedly connected to the rotor shaft, is located in the second shaft hole, and is connected to the rotor turntable And it is configured to rotate under the drive of the turntable of the rotor when the turntable of the rotor rotates;
  • the first bearing is sleeved on the rotor shaft and is located at a first end of the turntable close to the first end of the rotor shaft.
  • Side a second bearing sleeved on the rotor shaft, located on the side of the turntable close to the second end of the rotor shaft.
  • the material of the rotor shaft and the rotating disk is steel, and the material of the rotor except for the rotor shaft and the rotating disk For organic materials.
  • the stator further includes a diversion cone, which is located on the side of the stator's wheel disk away from the rotor; the diversion cone includes The first end and the second end opposite to each other in the first direction, the first direction is from the stator to the rotor; the first end of the guide cone and the central area of the wheel of the stator Connected, from the second end of the flow guide cone to the first end of the flow guide cone, the size of the cross section of at least part of the flow guide cone in the second direction gradually increases, and the second direction is perpendicular In the first direction.
  • the at least part of the diversion cone is cone-shaped, or the at least part of the diversion cone is a part of a sphere.
  • the stator further includes a second shroud that surrounds the plurality of guide vanes and is connected to the plurality of guide vanes, and The inner wall of the air guide tube is fixedly connected to fix the stator to the air guide tube, wherein the second shroud is closed in a direction surrounding the plurality of guide vanes.
  • the guide cone, the stator disc, the second shroud and the plurality of guide vanes are integrally formed.
  • At least one embodiment of the present disclosure further provides a power generation device.
  • the power generation device includes any one of the air turbines provided in the embodiments of the present disclosure and a generator.
  • the generator includes a rotating shaft, and the rotating shaft of the generator and the rotor Connected and configured to rotate under the drive of the rotor.
  • the gas chamber further includes a third opening configured to allow liquid to enter the gas chamber through the third opening, and the liquid level of the liquid fluctuates to
  • the air pressure in the air chamber is adjustable; the first opening is located on the upper side of the air chamber close to the rotor, and the third opening is located on the lower side of the air chamber away from the rotor.
  • the generator further includes a fuselage, and the fuselage is located on a side of the rotor away from the air chamber; when the rotor includes a rotor shaft The first end of the rotating shaft of the generator is connected with the fuselage, and the second end of the rotating shaft of the generator opposite to the first end is connected with the rotor rotating shaft.
  • the rotor shaft includes a first end close to the generator; a key is provided on the surface of the first end of the rotor shaft facing the generator. In the bonding groove, the second end of the rotating shaft of the generator is located in the bonding groove.
  • the power generation device further includes: a generator mounting seat and a generator protective cover; the generator is mounted on the generator mounting seat; the air turbine includes a guide In the case of a trachea, the rotor is located in the air duct, the air duct includes a first end and a second end, the first end of the air duct is in communication with the atmosphere, and the second end of the air duct is connected to the air duct.
  • the first opening of the air chamber allows the air duct to communicate with the air chamber, and the generator mounting seat has an air hole, which is connected to the first end of the air duct and is configured so that the gas in the air chamber passes through the air chamber.
  • the air hole is discharged or the gas in the atmosphere enters the air chamber through the air hole;
  • the generator protective cover covers the body of the generator and is installed on the generator mounting seat, wherein the generator The mounting seat is in sealed connection with the generator protection cover, and the air outlet is located outside the generator protection cover.
  • the power generation device further includes a protective structure, which is located on the side of the generator protective cover far from the rotor, and includes a protective cap mounting seat, a protective cap, and a protective cap bracket, Connected with the generator mounting seat; a protective cap covers the generator mounting seat and the protective cap mounting seat; the generator mounting seat is parallel to the protective cap mounting seat facing the protective cap
  • the orthographic projection on the plane of the surface and the orthographic projection of the protective cap mounting seat on the plane are both located in the orthographic projection of the protective cap on the plane; a protective cap bracket connects the protective cap and the protective cap
  • the cap mounting seat is used to mount the protective cap on the protective cap mounting seat.
  • the air turbine can be used to generate electricity to convert the kinetic energy of the rotor into electrical energy.
  • the wave fluctuations are used to obtain the first and second air pressure differences, and finally the wave energy is converted into electrical energy.
  • the power generation device using the air turbine can Quickly react to the pressure difference in real time to generate power, and the power generation efficiency is high.
  • Fig. 1A is a schematic structural diagram of an air turbine provided by an embodiment of the present disclosure
  • Fig. 1B is a schematic cross-sectional view of the air turbine shown in Fig. 1A;
  • FIGS. 2A-2B are structural schematic diagrams of an air valve of an air turbine provided by an embodiment of the present disclosure.
  • FIG. 2C is a schematic structural diagram of another air valve of an air turbine provided by an embodiment of the present disclosure.
  • 2D is a schematic structural diagram of another air valve of an air turbine provided by an embodiment of the present disclosure.
  • 2E is a schematic structural diagram of another air valve of an air turbine provided by an embodiment of the present disclosure.
  • 2F is a schematic structural diagram of another air valve of an air turbine provided by an embodiment of the present disclosure.
  • 2G is a schematic structural diagram of a rectifier piece of an air valve of an air turbine provided by an embodiment of the present disclosure
  • 3A-3B are structural schematic diagrams of a rotor of a rotor of an air turbine rotor provided by an embodiment of the present disclosure
  • 3C is a schematic structural diagram of a stator of an air turbine provided by an embodiment of the present disclosure.
  • FIG. 3D is a schematic structural diagram of the combination of the stator and the guide cone of the air turbine provided by an embodiment of the present disclosure
  • Figure 3E is a schematic diagram of the stator guiding the airflow to the rotor
  • FIG. 3F is a schematic structural diagram of another type of rotor turntable of an air turbine provided by an embodiment of the present disclosure.
  • 3G-3H are structural schematic diagrams of a rotor shaft and a rotor turntable provided by an embodiment of the disclosure
  • FIG. 4A is a schematic structural diagram of an air turbine provided by an embodiment of the present disclosure.
  • FIG. 4B is a schematic cross-sectional view of the air turbine shown in FIG. 4A;
  • Fig. 5 is a schematic structural diagram of another air turbine provided by an embodiment of the present disclosure.
  • Fig. 6 is a schematic structural diagram of another air turbine provided by an embodiment of the present disclosure.
  • FIG. 7A is a schematic structural diagram of a power generation device provided by an embodiment of the present disclosure.
  • Fig. 7B is a schematic cross-sectional view of the power generating device shown in Fig. 7A;
  • Fig. 8A is a partial schematic diagram 1 of a power generation device provided by an embodiment of the present disclosure.
  • FIG. 8B is a second partial schematic diagram of a power generation device provided by an embodiment of the present disclosure.
  • FIG. 8C is a third partial schematic diagram of a power generation device provided by an embodiment of the present disclosure.
  • 9A-9C are schematic diagrams of the generator mounting seat of the power generating device in FIG. 7B;
  • FIG. 10 is a schematic diagram of the protection structure of the power generating device in FIG. 7A;
  • Fig. 11A is a schematic structural diagram of another air turbine provided by an embodiment of the present disclosure.
  • FIG. 11B is a schematic structural diagram of another air turbine provided by an embodiment of the present disclosure.
  • Fig. 11C is a schematic structural diagram of another air turbine provided by an embodiment of the present disclosure.
  • Rotor stall refers to a phenomenon in which the airflow in the boundary layer of the back air surface of the rotor blade will be converted into turbulence when the pressure difference between the air inlet surface and the back air surface of the rotor blade is too large, resulting in a phenomenon in which the energy conversion efficiency of the rotor drops sharply. Therefore, it is of great significance to design an air turbine that can work stably in the reciprocating airflow generated by an oscillating water column wave energy power generation device and design a power generation device to achieve higher energy conversion efficiency.
  • At least one embodiment of the present disclosure provides an air turbine, which includes an air chamber, an air valve, and a rotor.
  • the air chamber includes a first opening communicating with the atmosphere; the air pressure in the air chamber can be adjusted, and the difference between the air pressure in the air chamber and the atmospheric pressure includes a first air pressure difference and a second air pressure difference; the air valve is connected to the air chamber and is configured to be in the first
  • the air chamber is opened under the action of the air pressure difference to make the air chamber communicate with the atmosphere through the air valve and the first opening to form a first air flow, and closed under the action of the second air pressure difference to make the air chamber communicate with the atmosphere through the first opening.
  • the first air pressure difference and the second air pressure difference are in opposite directions; the rotor is configured to rotate under the drive of the second air flow.
  • the air turbine can be used to generate electricity to convert the kinetic energy of the rotor into electrical energy.
  • the wave fluctuations are used to obtain the first air pressure difference and the second air pressure difference, so as to finally convert wave energy into electrical energy.
  • a power generation device using the air turbine It can quickly react to the pressure difference in real time to generate power, and the power generation efficiency is high.
  • FIG. 1A is a schematic structural diagram of an air turbine provided by an embodiment of the present disclosure
  • FIG. 1B is a schematic cross-sectional view of the air turbine shown in FIG. 1A
  • the air turbine includes an air chamber 2, an air valve 3 and a rotor 4.
  • the air chamber 2 includes a first opening 21 communicating with the atmosphere, and the air pressure in the air chamber 2 can be adjusted.
  • the difference between the air pressure in the air chamber 2 and the atmospheric pressure includes the first air pressure difference and the second air pressure difference.
  • the directions of the first air pressure difference and the second air pressure difference are opposite, that is, the positive and negative values of the first air pressure difference and the second air pressure difference are opposite.
  • the air valve 3 is connected to the air chamber 2 and is configured to open under the action of the first air pressure difference so that the air chamber 2 communicates with the atmosphere through the air valve 3 and the first opening 21 to form a first air flow, and in the second The air chamber is closed under the action of the air pressure difference so that the air chamber communicates with the atmosphere through the first opening 21 to form a second air flow.
  • the air valve 3 is located between the air chamber 2 and the rotor 4. When the air pressure in the air chamber 2 is less than the atmospheric pressure, a first air pressure difference is generated.
  • the air valve 3 Under the action of the first air pressure difference, the air valve 3 is opened to allow the atmosphere and the air chamber 2 to communicate with each other, and the air in the atmosphere passes through the first opening 21 and the air
  • the valve 3 enters the air chamber 2 to generate a first air flow; when the air pressure in the air chamber 2 is greater than the atmospheric pressure, a second air pressure difference is generated. Under the action of the second air pressure difference, the air valve 3 is closed to allow the gas in the air chamber 2 to pass
  • the first opening 21 enters the atmosphere to generate a second gas flow, that is, the first opening 21 is the only outlet for the gas in the gas chamber 2.
  • the rotor 4 is configured to rotate under the drive of the second air flow, and the rotor 4 is arranged outside the second outlet 21 of the air chamber 2 so that the second air flow is sprayed to the rotor to drive the rotor to rotate. Therefore, the air turbine can realize that the air valve 3 is opened or closed under the action of the first air pressure difference and the second air pressure difference, so as to realize real-time and rapid control of whether to generate the second air flow that drives the rotor to rotate.
  • the kinetic energy generated when the rotor rotates can be used for power generation, so as to realize real-time control to convert the kinetic energy of the airflow into the kinetic energy of the rotor; and, during the working process of the air turbine, since the air valve 3 of the air turbine is at the first air pressure It can be opened or closed under the action of the second difference and the second air pressure difference, so there is no need to manually open or close the air valve 3, and it is not necessary to judge the relationship between the air pressure in the air chamber 2 and the atmospheric pressure before determining the air valve 3 to open. Or close the program, therefore, the air turbine can adapt to the rapid conversion between the first air pressure difference and the second air pressure difference, and achieve higher energy conversion efficiency.
  • the air chamber 2 is configured to allow liquid to enter therein, and the liquid level of the liquid fluctuates so that the air pressure in the air chamber 2 can be adjusted.
  • the liquid is waves such as ocean waves. Therefore, the air turbine can be used in a power generation device working in seawater, thereby allowing ocean waves to enter the air chamber 2 to convert ocean wave energy, such as kinetic energy, into potential energy and kinetic energy of the air, and then into kinetic energy of the rotor, and then into the kinetic energy of the rotor. Electricity is used to generate electricity. Generally, the kinetic energy generated when the waves rise is greater than when the waves fall.
  • the second air flow is generated by compressing the air in the air chamber 2 when the sea waves rise. At this time, the second air flow has a larger energy, and the use of the second air flow to generate electricity can achieve higher power generation efficiency.
  • the air turbine further includes an air duct 1.
  • the air duct 1 includes a first end and a second end; the rotor 4 is located in the air duct 1, the first end of the air duct 1 is in communication with the atmosphere, and the second end of the air duct 1
  • the first opening 21 connected to the air chamber 2 allows the air duct 1 to communicate with the air chamber 2.
  • the air valve 3 is located between the air chamber 2 and the air duct 1.
  • the arrangement of the air duct 1 and the rotor 4 in the air duct 1 enables the second airflow to be sprayed to the rotor 4 more concentratedly, reducing gas energy loss, improving energy utilization, and improving the power generation efficiency of the power generation device using the air turbine.
  • the second airflow enters the air duct 1 through the first opening 21, and enters the atmosphere from the first end of the air duct 1 after flowing through the rotor 4.
  • the air guide tube 1 includes a plurality of parts connected to each other, and the plurality of parts are connected by flanges, so as to facilitate the installation of the rotor and the stator in the air guide tube 1.
  • the air turbine further includes a valve box 30 that includes a first end, a second end, and a side wall 301.
  • the first end of the valve box 30 has a first opening, and the first opening is connected to the second end of the air duct 1 so that the valve box 30 communicates with the air duct 1.
  • the first end of the valve box 30 and the second end of the air duct 1 are connected by welding or bolt connection, etc.
  • the embodiment of the present disclosure does not limit this, and those skilled in the art can implement it according to conventional techniques.
  • the second end of the valve box 30 is opposite to the first end and has a second opening connected to the first opening of the air chamber to allow the valve box to communicate with the air chamber; the side wall 301 is located on the valve Between the first end of the box 30 and the second end of the valve box 30.
  • the air valve 3 includes a valve plate 31 and a rectifying piece 32.
  • the side wall 301 of the valve box 30 includes a valve plate 31.
  • the side wall 301 is configured as a valve plate 31.
  • the valve plate 31 may be a part of the side wall 301.
  • the valve plate 31 is fixedly connected between the air chamber 2 and the air duct 1. Since the first end of the air duct 1 is in communication with the atmosphere, the valve plate 31 is fixedly connected between the air chamber 2 and the atmosphere.
  • the valve plate 31 includes a first plate surface 311 and a second plate surface 312 opposite to the first plate surface 311. For example, the first plate surface 311 faces the atmosphere.
  • the first air flow includes the part that enters the air chamber 2 through the air valve 3 and the part that enters the air chamber 2 through the air duct 1 and the first opening 21 of the air chamber 2 in turn; the first plate surface 311 faces the first air flow through the air valve 3 The origin of the part that enters the air chamber 2.
  • the valve plate 31 has a through hole 35 penetrating the valve plate 31 in a direction from the first plate surface 311 to the second plate surface 312; the rectifying piece 32 is provided on the second plate surface 312 of the valve plate 31.
  • the air pressure in the air chamber 2 is less than the atmospheric pressure to generate a first air pressure difference
  • the rectifier 32 is configured to leave the through hole 35 under the action of the first air pressure difference to open the air valve 3, so that the air chamber 2 communicates with the atmosphere.
  • the air in the atmosphere enters the valve box 30 through the through hole 35, and enters the air chamber 2 through the first opening 21 of the air chamber 2; at the same time, the air in the atmosphere passes through the first end of the air duct 1, the valve box 30 and the air chamber
  • the first opening 21 of 2 enters the air chamber 2 to form a first air flow; the air pressure in the air chamber 2 is greater than the atmospheric pressure to generate a second air pressure difference, and the rectifier 32 is configured to seal the through hole 35 under the action of the second air pressure difference.
  • the gas valve 3 is closed so that the gas in the gas chamber 2 enters the atmosphere through the first opening 21 to generate a second gas flow, that is, the first opening 21 is the only outlet for the gas in the gas chamber 2.
  • the rotor 4 is configured to rotate under the drive of the second air flow, and the rotor 4 is arranged outside the second outlet 21 of the air chamber 2 so that the second air flow is sprayed to the rotor 4 to drive the rotor 4 to rotate.
  • the valve box 30 includes a plurality of side walls 301 connected to each other, and each of the plurality of side walls 301 includes the valve plate 31 to increase the flow rate of the first air flow, thereby improving the conversion between the first air flow and the second air flow.
  • Speed thereby improving energy conversion efficiency, when the air turbine is used in a power generation device, the power generation efficiency can be improved.
  • the shape of the first plate surface 311 of the valve plate 31 is a rectangle, but is not limited to a rectangle.
  • the fairing 32 includes a first part 321 and a second part 322 connected to each other.
  • the first part 321 is at least partially fixed to the valve plate 31, for example, an end 323 of the first part 321 away from the second part 322 is fixed to the valve plate 31.
  • FIG. 2G is a schematic diagram of a rectifier. As shown in FIG. 2G, an end 323 of the first part 321 of the rectifier 32 away from the second part 322 has a hole 324 penetrating the rectifier, as shown in FIG. 1B.
  • the fastener 325 of the through hole 324 fixes the end of the first part 321 of the rectifier plate 32 away from the second part 322 to the valve plate 31.
  • the second part 322 is not fixed to the valve plate 31, and in a natural state (when the air pressure in the air chamber 2 is equal to the atmospheric pressure) sags and adheres to the first plate surface 311 of the valve plate 31, thus, when the air When the air pressure in the chamber 2 is less than the atmospheric pressure and the first air pressure difference is generated, the second part 322 leaves the through hole 35 under the action of the first air pressure difference, that is, moves in a direction away from the second plate surface 312 and leaves the through hole 35 , So that the gas in the atmosphere can enter the valve box 30 through the through hole 35, and then into the gas chamber 2. At the same time, the gas in the atmosphere enters the gas chamber 2 through the first end of the air duct 1, thereby generating a first airflow.
  • the second portion 322 is affected by the pressure in the direction from the second plate surface 312 to the first plate surface 311 under the action of the second air pressure difference. It is attached to the second plate surface 312 of the valve plate 31, so that at this time, the rectifier 32 closes the through hole 35 so that the gas in the gas chamber 2 cannot be discharged through the gas valve 3, and can only enter the gas duct 1 through the first opening 21 , After flowing through the rotor 4 in the air guide tube 1, it is discharged, for example, into the atmosphere, thereby forming a second air flow.
  • the air duct 1 is a linear pipe extending in the direction from the first opening 21 of the air chamber 2 to the rotor 4, and the air duct 1 is a linear duct which can reduce the path of the second air flow and improve the energy utilization efficiency.
  • the air turbine When used for power generation, it improves the power generation efficiency.
  • the direction from the first part 321 of the rectifier plate 32 to the second part 322 of the rectifier plate 32 is parallel to the extending direction of the air duct 1, so that the second part 322 of the rectifier plate 32 is under the action of gravity during the operation of the air turbine. It sags to cover the through hole 35.
  • the extending direction of the air duct 1 is the same as the direction in which the liquid level of the liquid entering the air chamber 2 fluctuates.
  • the rectifier plate 32 is attached to the first plate surface 311 of the valve plate 31 to close the through hole 35, the sealing effect is relatively good and it is easy to manufacture.
  • the material of the rectifier plate 32 is a soft material with a certain degree of flexibility, such as rubber or silica gel.
  • the thickness of the rectifier plate 32 along the direction from the first plate surface 311 to the second plate surface 312 is 1mm-3mm.
  • the material of the rectifier plate 32 may also be metal, and the thickness of the rectifier plate 32 in the direction from the first plate surface 311 to the second plate surface 312 is 1 mm-5 mm.
  • the thickness of the rectifier sheet is too thick to open the through hole 35 under the effect of a certain first air pressure difference, and the thickness of the rectifier sheet is too thin to prevent the through hole 35 from being closed under the effect of a certain second air pressure difference.
  • the flexibility and effect of the rectifier to achieve the above-mentioned functions are related to its material and thickness, and within the above-mentioned range, a relatively stable and immediate effect of controlling the opening and closing of the air valve can be achieved.
  • the entire air turbine can be very large or small.
  • the size of the rotor 4 is as large as several meters, and the size of the rotor 4 is as small as ten centimeters.
  • the size of the through hole and the size of the rectifier are designed according to the size of the entire air turbine and the size of the valve plate, which is not limited in the embodiment of the present disclosure.
  • the first part 321 and the second part 322 are integrally formed, that is, the first part 321 and the second part 322 are made of the same material and there is no seam between each other.
  • the first part 321 may also be connected to the second part 322 by a connecting member.
  • the direction from the first part 321 of the fairing 32 to the second part 322 of the fairing 32 is the same as the direction from the first end 11 of the air duct 1 to the second end 12 of the air duct 1 Vertical, so that during the working process of the air turbine, the second part 322 of the rectifier 32 sags under the action of gravity to cover the through hole 35.
  • the rectifier 32 is attached to When the first plate surface 311 of the valve plate 31 closes the through hole 35, the sealing effect is relatively good, and it is also easy to manufacture.
  • the size of the rectifying piece 32 is larger than the size of the through hole 35 so that the rectifying piece can cover the through hole 35 and close the through hole 35 when the air valve 3 is closed.
  • a surplus of 1 cm-4 cm is left around the through hole 35 on the valve plate 31 to ensure the air tightness of the air chamber when the air valve 3 is closed.
  • the shape 32 of the commutating piece is circular with a diameter of 330 mm
  • the through hole 35 is circular with a diameter of 300 mm.
  • the rectifying piece 32 is rectangular with a length and width of 330mm*330mm
  • the through-hole rectifying piece is rectangular with a length and width of 300mm*300mm, respectively, so that the air valve 3 has a relatively stable control effect.
  • the embodiments of the present disclosure do not limit the size of the rectifier and the through hole.
  • the above data is exemplary.
  • the specific size of the rectifier can be designed according to the size of the hole in the actual application, and the size of the hole can be based on the size of the valve plate and the first The size of the first air pressure difference and the second air pressure difference is designed.
  • the valve plate 31 further includes a support frame 34 located in the through hole 35.
  • the support frame 34 includes at least a pair of opposite ends, and the at least one pair of ends are connected to each other.
  • the inner wall of the hole 35 is connected, and the support frame 34 divides the through hole 35 into a plurality of parts that are not connected to each other.
  • the support frame 34 divides the through hole 35 into a plurality of six parts that are not connected to each other.
  • the support frame 34 provides support for the rectifier plate 32 to enhance the stability of the working state of the rectifier plate 32 and ensure the airtightness. The effect is beneficial to prolong the life of the commutating piece 32 at the same time.
  • the support frame 34 can be integrally formed with the valve plate 31 to simplify the structure and manufacturing process.
  • the support frame 34 can also be made separately, and the support frame 34 is fixed to the hole wall of the through hole 35 on the valve plate 31 by a fastener such as a nut.
  • the support frame 34 includes a plurality of bars that cross each other.
  • the planar shape of the commutating piece may be a circle, a rectangle, or the like.
  • the planar shape of the first part 321 and the second part 322 is, for example, a rectangle, a semicircle, a fan shape, or the like.
  • the planar shape of the rectifier is not limited to the types listed above, and the embodiment of the present disclosure does not limit the planar shape of the rectifier.
  • FIGS. 2A-2F are structural schematic diagrams of a kind of air valve of several air turbines provided by an embodiment of the present disclosure.
  • the support frame 34 has a cross shape; in the embodiment shown in 2C, the support frame 34 has a cross shape.
  • the shape of the support frame 34 is not limited to the types listed above, and the embodiment of the present disclosure does not limit the shape of the support frame 34.
  • the support frame may not be provided in the through hole 35.
  • the shape of the valve plate 31 is circular.
  • the shape of the first plate surface 311 of the valve plate 31 is rectangular.
  • the shape of the first plate surface 311 of the valve plate 31 is not limited to the types listed above.
  • the above embodiments are only exemplary.
  • the embodiment of the present disclosure does not limit the shape of the first plate surface 311 of the valve plate 31. Those skilled in the art You can choose according to your needs.
  • the valve plate 31 has a plurality of through holes 35; corresponding to each through hole 35 of the plurality of through holes 35, a rectifying piece 32 is provided. Or, in other embodiments, n adjacent through holes 35 among the plurality of through holes 35 share one rectifier 32, and n is a positive integer greater than or equal to 2.
  • the provision of multiple through holes 35 is beneficial to make the air flow quickly pass through the air valve and be sprayed onto the stator and rotor when the flow rate of the air flow is large; and, when the size of the air turbine is large, multiple through holes are provided. Compared with a single through hole, the hole is more conducive to the stability and reliability of the operation of the air valve 3.
  • FIGS. 3A-3B are schematic structural diagrams of a rotor of an air turbine provided by an embodiment of the present disclosure
  • FIGS. 3C-3D are schematic structural diagrams of a stator of an air turbine provided by an embodiment of the present disclosure.
  • the rotor 4 includes a turntable 41 and a plurality of rotating blades 44.
  • a plurality of rotating blades 44 are arranged on the edge of the turntable 41 around the turntable 41, for example, a plurality of rotating blades 44 are evenly arranged on the edge of the turntable 41 around the turntable 41, so that the air flow evenly flows through the rotor, so that the rotor rotates stably.
  • Each of the plurality of rotating blades 44 includes a first surface 441 configured to receive the second air flow.
  • the plurality of rotating blades 44 are configured to rotate under the action of the second air flow to drive the turntable 41 to rotate; at least part of the first surface 441 of each of the plurality of rotating blades 44 faces the second end of the air guide tube 1, that is, faces the second end. The direction of the airflow.
  • the second airflow flows through the rotor 4 in a direction from the second end of the air guide tube 1 to the first end of the air guide tube 1.
  • the rotor 4 may further include a first shroud 43 surrounding the plurality of rotating blades 44 and connected to the plurality of rotating blades 44.
  • the first shroud 43 It is a closed ring shape; the width of the first shroud 43 in the axial direction of the rotor 4 is greater than or equal to the thickness of the turntable 41 in the axial direction of the rotor 4, and the axial direction of the rotor 4 is perpendicular to the disk surface of the turntable 41. Therefore, it is ensured that the first shroud 44 covers the entire rotating blade 44, so that the first shroud 43 can better protect the plurality of rotating blades 44 and improve the service life of the rotor 4.
  • the turntable 41 of the rotor 4 is provided with a shaft hole 45.
  • the air turbine also includes a rotor shaft (not shown in FIG. 3A, which is equivalent to the rotor shaft 46 in FIG. 1B).
  • the rotor shaft passes through the shaft hole 45 to be connected to the turntable 41.
  • the shaft hole 45 includes a main body and a part that penetrates the main body.
  • the protrusion for example, the cross-sectional shape of the main body of the shaft hole 45 in the direction perpendicular to the axial direction is circular, and the cross-sectional shape of the protrusion in the direction perpendicular to the axial direction is square, so that the rotor shaft is fitted with the turntable 41 through the shaft hole 45,
  • the rotor shaft is configured such that the rotation of the plurality of rotating blades 44 drives the turntable 41 and the rotor shaft to rotate.
  • the air turbine may also include a stator 5.
  • the stator 5 is fixed in the air duct 1 and located on the side of the rotor 4 close to the air chamber 2 so as to be configured as a second air flow through the stator 5. Then flow through the rotor 4.
  • the stator 5 includes a wheel 51 and a plurality of guide vanes 52.
  • the wheel 51 of the stator 5 includes a central area and an edge area surrounding the central area.
  • the central area of the wheel 51 of the stator 5 includes a first bearing housing 54.
  • the first bearing 11 is installed in the first bearing housing 54. The position of the first bearing 11 is introduced.
  • a plurality of guide vanes 52 are located in the edge area, are arranged around the central area, and are configured to guide the airflow to the rotor 4.
  • the stator 5 plays a guiding role to improve the energy utilization rate of the airflow, so that when the kinetic energy of the rotor is finally converted into electric energy, it is beneficial to provide the conversion efficiency of the energy of the airflow during the whole process.
  • the plurality of guide vanes 52 of the stator 5 are welded in the air guide tube 1, for example, welded to the wall of the first cavity; or, as shown in FIG. 3C, the stator 5 further includes a second shroud 53 and a second shroud
  • the belt 53 surrounds the plurality of guide vanes 52 and is connected to the plurality of guide vanes 52, and is fixedly connected to the inner wall of the air guide tube 1 to fix the stator 5 to the air guide tube 1.
  • the first The secondary belt 53 is closed.
  • the second shroud 53 is welded to the inner wall of the air duct 1.
  • FIGS. 3G-3H are schematic structural diagrams of a rotor shaft and a rotor turntable provided by an embodiment of the present disclosure.
  • the turntable 41 includes a first shaft hole 451 and a second shaft hole 452 that penetrate each other; the rotor 4 further includes a rotor shaft 46, a shaft turntable 47, and a first bearing 11 and second bearing 12.
  • the rotor shaft 46 is installed in the first shaft hole 451 and includes a first end and a second end opposite to the first end.
  • the first end of the rotor shaft 46 is located on the first side of the shaft turntable 47 close to the stator 5.
  • the rotor shaft The second end of 46 is located on the second side of the rotating disk 47 away from the stator 5.
  • the rotating shaft turntable 47 is fixedly connected to the rotor shaft 46.
  • the rotating shaft turntable 47 and the rotor shaft 46 are integrally formed, which is simple to manufacture and can simplify the structure of the rotor.
  • the rotating shaft turntable 47 is located in the second shaft hole 452, is connected to the turntable 41 of the rotor 4 and is configured to rotate under the drive of the turntable 41 of the rotor 4 when the turntable 41 of the rotor 4 rotates.
  • the first bearing 11 is sleeved on the rotor shaft 46 and is located on the side of the turntable 41 close to the first end of the rotor shaft 46, so as to carry and support the turntable 41, the rotor shaft 46 and the shaft turntable 47 of the rotor 4, To bear the gravity of the turntable 41, the rotor shaft 46, and the shaft turntable 47 to reduce the load on the rotor shaft.
  • the second bearing 12 is sleeved on the rotor shaft 46 and is located on the side of the turntable 41 close to the second end of the rotor shaft 46.
  • the first bearing 11 and the second bearing 12 can also share the axial force received by the rotor shaft and the circumferential force perpendicular to the axial direction during the working process, which is beneficial to improve the life of the rotor shaft.
  • the first end of the rotor shaft 46 has a keying groove 465.
  • the key groove 465 is used to connect with the rotating shaft of the generator, so that the rotating shaft 71 of the generator rotates with the rotation of the rotor shaft.
  • the rotor further includes a first collar 463 and a second collar 464.
  • the first collar 463 and the second collar 464 are both fixed to the rotor shaft 46, for example, both are integrally formed with the rotor shaft 46 .
  • the first bearing 11 includes an outer ring and an inner ring located outside the inner ring (the outer side refers to the side of the inner ring away from the rotor shaft 46), and the second bearing 12 includes an outer ring and an inner ring.
  • the first collar 463 is located on the side of the first bearing 11 close to the rotating shaft turntable 47, and the surface of the first collar 463 facing the first bearing 11 is in contact with the surface of the inner ring of the first bearing 11 facing the first collar 463 , So that the first collar 463 plays a role in supporting the first bearing 11 and enhancing the protection of the rotor shaft 46;
  • the second collar 464 is located on the side of the second bearing 12 close to the shaft turntable 47, the second collar 464
  • the surface facing the second bearing 12 is in contact with the surface of the inner ring of the second bearing 12 facing the second collar 464, so that the second collar 464 functions to support the second bearing 12 and enhance the protection of the rotor shaft 46.
  • the material of the rotor shaft 46 and the shaft turntable 47 is steel, and the material of the rotor 4 except for the rotor shaft 46 and the shaft turntable 47 is organic material.
  • the rotor shaft made of steel has a large mass, which can increase the moment of inertia of the rotor, so that the speed of the rotor will not immediately rise to a high value when encountering large airflows, thereby improving the stability of the air turbine work, thereby improving the application of the
  • the stability of the power generation of the air turbine power generation device; the use of organic materials in other parts of the rotor can reduce the weight of the power generation device under the premise of ensuring the stable operation of the power generation device, which is convenient for installation and transportation, especially for large-size power generation devices. Reducing weight is conducive to reducing the requirements for installation equipment, which is very critical in engineering practice.
  • the rotating shaft turntable 47 and the turntable 41 are connected by bolts.
  • the turntable 41 includes a bolt hole 453, and the rotating shaft turntable 47 and the turntable 41 are connected by the bolt hole 453, bolts and nuts.
  • the connection manner of the rotating shaft turntable 47 and the turntable 41 is not limited to the above-mentioned manner, as long as the rotating shaft turntable 47 and the rotating shaft 46 can be rotated under the driving of the turntable 41.
  • Fig. 3D is a structural schematic diagram of the combination of a stator and a guide cone of an air turbine provided by an embodiment of the present disclosure.
  • the stator 5 also includes a guide cone 6, and the guide cone 6 is located at the position of the stator 5.
  • the flow guide cone 6 On the side of the wheel 51 away from the rotor 4, the flow guide cone 6 includes a first end and a second end opposite to each other in a first direction.
  • the first direction is the direction from the stator to the rotor, that is, from the first end of the air duct 1.
  • the first end of the guide cone 6 is connected to the central area of the wheel 51 of the stator 5, for example, the first end of the guide cone 6 is connected to the wheel 51 of the stator 5
  • the central area is connected by welding or threaded connection as shown in Figure 3C.
  • the central area of the wheel 51 of the stator 5 includes the stator thread 55 and the wheel of the stator 5.
  • 51 is connected to the guide cone 6 through a stator thread 55.
  • the first end of the guide cone 6 and the wheel 51 of the stator 5 are integrally formed to simplify the structure of the stator.
  • the size of the cross section of at least part of the guide cone 6 in the second direction gradually increases, and the second direction is perpendicular to the first direction.
  • the at least part of the guide cone 6 is cone-shaped, such as a cone or a pyramid, or the at least part of the guide cone 6 is a part of a sphere.
  • the guide cone 6, the disc 51 of the stator 5, the second shroud 53 and the plurality of guide vanes 52 are integrally formed, which is beneficial to simplify the structure and manufacturing process of the air turbine.
  • the materials of the rotor 4, the stator 5, and the guide cone 6 can all be metallic materials, such as corrosion-resistant metals, such as aluminum, aluminum alloy, stainless steel, etc., or organic materials, such as photosensitive resin.
  • the stator can be made by 3D printing.
  • FIG. 3E is a schematic diagram of the stator guiding the airflow to the rotor.
  • the configuration of the plurality of guide vanes 52 of the stator 5 to guide the airflow to the rotor 4 will be described with reference to FIGS. 3A-3B and 3E.
  • the vertical cross-sectional shape of the rotating blade 44 is a crescent shape, and the curvature of one side of the first surface 441 of the rotating blade 44 is larger than the curvature of one side of the second surface 442.
  • the portion of the first surface 441 of each of the plurality of rotating blades 44 close to the stator 5 faces the direction of the air flow.
  • the vertical cross section of the guide vane 52 of the stator 5 is composed of a straight section 522 and a circular arc section 521, and the straight section 522 leads out the airflow in the same direction as the side of the first surface 441 adjacent to it on the rotating blade 44
  • the inflow directions of the airflow are joined together, and the airflow derived from the straight section 522 of the guide vane 52 is guided to the first surface 441 of the rotating vane 44, and the rotating vane 44 rotates under the action of the airflow.
  • FIG. 4A is a schematic structural diagram of another air turbine provided by an embodiment of the present disclosure
  • FIG. 4B is a schematic cross-sectional view of the air turbine shown in FIG. 4A.
  • the embodiment shown in FIGS. 4A and 4B has the following differences from the embodiment shown in FIGS. 1A and 1B.
  • the second plate surface 312 faces the atmosphere
  • at least part of the first surface 441 of each of the plurality of rotating blades 44 faces the first end of the air guide tube 1, that is, faces the second The direction of the airflow.
  • the air pressure in the air chamber 2 is less than the atmospheric pressure to form the second air pressure difference.
  • the rectifier plate 31 is attached to the second plate surface 312 of the valve plate 32 under the action of the second air pressure difference to close the through hole 35.
  • the gas enters the air duct through the first end of the air duct 1, flows through the rotor 4 and then enters the air chamber 2 through the first opening 21 of the air chamber 2 to form a second air flow; the air pressure in the air chamber 2 is greater than the atmospheric pressure to form the At the first air pressure, the gas in the gas chamber 2 enters the atmosphere through the gas valve 3 and the first end of the gas pipe 1 to form a first gas flow.
  • the stator 5 is fixed in the air duct 1 and is located on the side of the rotor 4 away from the air chamber 2 so as to be configured as a second airflow that flows through the stator 5 and then flows through the rotor 4.
  • the guide cone 6 is located on the side of the wheel 51 of the stator 5 away from the rotor 4.
  • the guide cone 6 includes a first end and a second end opposite to each other in a first direction.
  • the first direction is the direction from the stator to the rotor. , That is, the direction from the first end of the air duct 1 to the second end of the air duct 1.
  • the air turbine provided in this embodiment can achieve the same or similar technical effects as the air turbine shown in FIGS. 1A and 1B, and will not be repeated here.
  • Other unmentioned features and corresponding technical effects of the air turbine provided in this embodiment are the same as those in the embodiment shown in FIGS. 1A and 1B. Please refer to the previous description.
  • Fig. 5 is a schematic structural diagram of another air turbine provided by an embodiment of the present disclosure.
  • the embodiment shown in Fig. 5 has the following differences from the embodiment shown in Figs. 1A and 1B.
  • the second end of the air pipe 1 is directly connected to the first opening 21 of the air chamber 2; the direct connection is to guide the second end of the air pipe 1 and the first opening 21 of the air chamber 2 without other transition structures such as a transition pipe .
  • the direct connection of the air duct 1 to the air chamber 2 can increase the gas flow rate and increase the energy utilization efficiency, thereby increasing the power generation efficiency when the air turbine is used for power generation.
  • the air chamber 2 further includes a second opening 22; the valve box 30 includes a first end, a second end and a side wall.
  • the first end of the valve box 30 is isolated from the atmosphere; the second end of the valve box 30 is opposite to the first end and has a second opening; the second opening of the valve box 20 is connected to the second opening 21 of the air chamber 2 so that the valve box 30 is in communication with the air chamber 2; the side wall 301 is located between the first end of the valve box 30 and the second end of the valve box 30 and is configured to include the valve plate 31.
  • the valve box 30 includes a plurality of side walls connected to each other 301, each side wall 301 is configured as a valve plate 31.
  • the embodiment shown in FIG. 5 takes the first plate surface 311 facing the atmosphere as an example, and the rectifying plate 32 is disposed on the second plate surface 312 of the valve plate 31, that is, the rectifying plate 32 is located in the valve box 30.
  • the valve plate 31 has a through hole 35 that penetrates the valve plate 31 in a direction from the first plate surface 311 to the second plate surface 312.
  • the rectifier 32 is configured to leave the through hole 35 under the action of the first air pressure difference to open the air valve 3, so that the air chamber 2 is connected to the atmosphere.
  • the gas in the atmosphere enters the valve box 30 through the through hole 35, and enters the gas chamber 2 through the second opening 22 of the gas chamber 2.
  • the gas in the atmosphere passes through the first end of the air duct 1 and the valve box 30.
  • the first opening 21 of the sum air chamber 2 enters the air chamber 2, thereby forming a first air flow. Therefore, the first airflow includes the part that enters the air chamber 2 through the air valve 3 and the second opening 22 of the air chamber in turn, and the part that enters the air chamber 2 through the air duct 1 and the first opening 21 of the air chamber 2 in turn. Therefore, the first The plate surface 311 faces the direction of the part of the first air flow that enters the valve box 30 via the gas valve 3.
  • the rectifier 32 is configured to seal the through hole 35 under the action of the second air pressure difference to close the air valve 3, so that the gas in the air chamber 2
  • the second gas flow is generated by entering the atmosphere through the first opening 21, that is, the first opening 21 is the only outlet for the gas in the gas chamber 2.
  • the rotor 4 is configured to rotate under the drive of the second air flow, and the rotor 4 is arranged outside the second outlet 21 of the air chamber 2 so that the second air flow is sprayed to the rotor 4 to drive the rotor 4 to rotate. Therefore, the embodiment shown in FIG. 5 can achieve technical effects similar to those of the embodiment shown in FIG. 1B, which will not be repeated here.
  • the specific structures of the rotor 4 and the stator 5 are the same as those in the embodiment shown in FIG. 1B, and reference may be made to the previous related description.
  • the second plate surface of the valve plate 31 in FIG. 5 can face the atmosphere.
  • the valve plate is arranged outside the valve box 30. Accordingly, the specific structures of the rotor 4 and the stator 5 are as shown in the figure. The same in the embodiment shown in 4B, please refer to the previous related description.
  • FIG. 6 is a schematic structural diagram of another air turbine provided by an embodiment of the present disclosure.
  • the embodiment shown in FIG. 6 has the following differences from the embodiment shown in FIG. 5.
  • the valve box 30 includes a side wall 301.
  • the valve box 30 includes a connecting pipe 302, the connecting pipe 302 is curved and includes a portion parallel to the first direction and a second portion intersecting the first portion, and the connecting pipe 302 includes a first opening and a portion opposite to the first opening.
  • the second opening; the first opening of the connecting pipe 302 is connected to the second opening 22 of the air chamber to make the connecting pipe 302 communicate with the air chamber 2; the air valve 3 is provided at the second opening of the connecting pipe 302, such as the valve plate 30 and The connecting pipe 302 is linked so as to cover the second opening of the connecting pipe 302.
  • the valve plate 30 may also be located inside the connecting pipe 302. 6 takes the first plate surface 311 of the valve plate 32 facing the atmosphere, and the rectifier plate 32 is located in the valve box as an example.
  • the second plate surface 312 of the valve plate 32 may face the atmosphere. 32 is located outside the valve box.
  • the rectifying piece 32 when the air pressure in the air chamber 2 is less than the atmospheric pressure and the first air pressure difference is generated, the rectifying piece 32 is configured to leave the through hole 35 under the action of the first air pressure difference to make the air valve 3 is opened, so that the gas chamber 2 and the atmosphere communicate with each other.
  • the gas in the atmosphere enters the connecting pipe 302 of the valve box 30 through the through hole 35, and then enters the gas chamber 2 through the second opening 22 of the gas chamber 2.
  • the air in the atmosphere enters the air chamber 2 through the first end of the air duct 1, the valve box 30 and the first opening 21 of the air chamber 2, thereby forming a first air flow.
  • the first airflow includes the part that enters the air chamber 2 through the air valve 3 and the second opening 22 of the air chamber in turn, and the part that enters the air chamber 2 through the air duct 1 and the first opening 21 of the air chamber 2 in turn. Therefore, the first The plate surface 311 faces the direction of the part of the first air flow that enters the valve box 30 via the gas valve 3.
  • the rectifier 32 is configured to seal the through hole 35 under the action of the second air pressure difference to close the air valve 3, so that the gas in the air chamber 2
  • the second gas flow is generated by entering the atmosphere through the first opening 21, that is, the first opening 21 is the only outlet for the gas in the gas chamber 2.
  • the rotor 4 is configured to rotate under the drive of the second air flow, and the rotor 4 is arranged outside the second outlet 21 of the air chamber 2 so that the second air flow is sprayed to the rotor 4 to drive the rotor 4 to rotate.
  • valve box includes a variety of forms, and the above are just a few examples. As long as the function of the valve box can be realized, other deformations are within the protection scope of the present disclosure.
  • At least one embodiment of the present disclosure further provides a power generation device, which includes any of the air turbines and generators provided in the embodiments of the present disclosure.
  • the generator includes a rotating shaft, and the rotating shaft of the generator is connected to the rotor and configured to rotate under the drive of the rotor. In this way, the power generation device can convert the energy of the generated airflow into electrical energy, and has high power generation efficiency.
  • FIG. 7A is a schematic structural diagram of a power generation device provided by an embodiment of the present disclosure
  • FIG. 7B is a schematic cross-sectional view of the power generation device shown in FIG. 7A.
  • the generator includes a rotating shaft 71, and the rotating shaft 71 of the generator is connected to the rotor 4 and is configured to rotate under the drive of the rotor 4.
  • the air chamber 2 further includes a third opening 23 configured to allow liquid to enter the air chamber 2 through the third opening 23, and the liquid level of the liquid fluctuates so that the air pressure in the air chamber 2 can be adjusted.
  • the liquid entering the air cell 2 is a wave such as a sea wave.
  • the power generation device can be used to work in sea water, thereby allowing ocean waves to enter the air chamber 2 to convert the energy of the ocean waves, such as kinetic energy, into electrical energy to realize power generation.
  • the power generation process of the power generation device will be described by taking the liquid as the ocean wave as an example.
  • the first opening 21 is located on the upper side of the air chamber 2 close to the rotor 4, and the third opening 23 is located on the lower side of the air chamber 2 away from the rotor 4, so that the first opening 21 and the second opening 22 of the air chamber 2 are respectively
  • the three openings 23 have a height difference, so that when the sea waves fluctuate up and down, the volume of the seawater entering the air chamber 2 through the air chamber 2 changes, thereby changing the gas volume of the air chamber 2.
  • the waves fluctuate up and down when the seawater level rises, the gas in the air chamber 2 is compressed, and the air pressure in the air chamber 2 becomes larger; when the seawater level rises, the volume of the gas in the air chamber 2 becomes larger , The air pressure in the air chamber 2 becomes smaller.
  • FIG. 8A is a partial schematic diagram 1 of a power generation device provided by an embodiment of the present disclosure.
  • the generator further includes a fuselage 73, which is located on the side of the rotor 4 away from the air chamber 2; the first end of the rotating shaft 71 of the generator is connected to the fuselage 73 to generate electricity.
  • the second end of the rotor shaft 71 opposite to the first end is connected to the rotor shaft 46.
  • One end of the rotor shaft 46 close to the shaft 71 of the generator has a keying groove 465, and the second end of the shaft 71 of the generator is located in the keying groove 465 so as to be connected to the rotor shaft 46, so that the first shaft 71 follows the direction of the rotor shaft.
  • the first bearing 11 and the second bearing 12 also bear the gravity of the generator shaft 71 to reduce power generation The burden of the machine's shaft 71.
  • first bearing 11 and the second bearing 12 can also share the axial force received by the generator shaft 71 and the circumferential force perpendicular to the axial direction during operation, which is beneficial to prevent the generator shaft 71 from being damaged due to the force. , Improve the life of the shaft 71 of the generator. Damage to the rotating shaft 71 of the generator is a serious problem in the working process of the power generating device.
  • the embodiments of the present disclosure can greatly reduce the damage to the rotating shaft 71 of the generator, reduce this problem, extend the life of the generator shaft, and improve the reliability of the power generating device. Sex.
  • FIG. 8B is a second partial schematic diagram of a power generation device provided by an embodiment of the present disclosure.
  • the rotating shaft 71 of the generator and the rotating shaft 46 of the rotor are integrally formed to be the same shaft to simplify the structure of the power generating device.
  • FIG. 8C is a third partial schematic diagram of a power generation device provided by an embodiment of the present disclosure. As shown in FIG. 8C, the rotating shaft turntable 47 and the turntable 41 of the rotor 4 are integrally formed to simplify the structure of the power generating device.
  • this embodiment takes the power generation device including the air turbine shown in FIGS. 1A-1B as an example.
  • the working process of the power generation device is introduced below.
  • the third opening 23 of the air chamber 2 of the power generating device is placed in sea water.
  • the liquid level in the gas chamber 2 rises, and the gas in the gas chamber 2 is compressed so that the air pressure in the gas chamber 2 is less than the atmospheric pressure, resulting in a first pressure difference.
  • the rectifier 32 is configured to leave the passage under the action of the first pressure difference.
  • the hole 35 allows the gas valve 3 to open, so that the gas chamber 2 communicates with the atmosphere.
  • the gas in the atmosphere enters the valve box 30 through the through hole 35, and enters the gas chamber 2 through the first opening 21 of the gas chamber 2; at the same time, The gas in the atmosphere enters the gas chamber 2 through the first end of the gas duct 1, the valve box 30 and the first opening 21 of the gas chamber 2 to form a first gas flow; the liquid level in the gas chamber 2 drops, and the gas volume in the gas chamber 2
  • the air pressure in the air chamber 2 is greater than the atmospheric pressure to generate a second air pressure difference.
  • the rectifying piece 32 is configured to seal the through hole 35 under the action of the second air pressure difference to close the air valve 3 so that the air pressure in the air chamber 2
  • the gas enters the atmosphere through the first opening 21 to generate a second gas flow, that is, the first opening 21 is the only outlet for the gas in the gas chamber 2.
  • the rotating blades of the rotor 4 are configured to rotate under the drive of the second airflow, so that the turntable 41 of the rotor 4 rotates, and the rotating turntable 41 drives the rotor shaft 46 to rotate.
  • the rotating shaft 71 of the generator connected to the rotor shaft 46 rotates to Realize power generation.
  • the kinetic energy generated when the waves rise is greater than when the waves fall.
  • the second airflow is generated by compressing the air in the air chamber 2 when the ocean waves rise. At this time, the second airflow has a larger energy, and the second airflow can be used to generate electricity. The power generation efficiency.
  • the power generation test of the power generation device shown in Fig. 7A was carried out in the laboratory. During the experiment, a water wave is created, which fluctuates in the air chamber to change the air pressure in the air chamber. During the experiment of the present disclosure, the waves in the wave period, wave height, etc. all refer to the parameters of the water wave.
  • the test conditions are as follows.
  • the generator is a 60V alternator, and three loads of suitable resistance, 12V battery, and 24V battery are connected to the generator to charge the 12V battery and 24V battery respectively. Under different wave height and cycle conditions, the rotation speed of the rotor of the air turbine is different, so the power generation of the generator is different.
  • the electricity generated by the generator is connected to the sliding rheostat as the power source, and the resistance of the sliding rheostat is adjusted.
  • the resistance of the sliding rheostat is that It is suitable resistance.
  • the parameters of regular waves include: wave period (the time interval for a wave to propagate from one crest or trough to the next crest or trough) 2.45s, wave height (the difference between the crest and trough when the liquid level fluctuates) The height difference) is about 150mm, and multiple tests are performed under each condition.
  • the test data is shown in Table 1.
  • the power generation efficiency is defined as the ratio between the power generated by the generator and the wave power acting on the wave energy absorbing device.
  • Table 1 Test data table 1 in the case of regular waves
  • Table 1 show that the overall power generation efficiency is relatively high, all above 20%, even reaching above 30%. When a suitable resistor is connected, the power generation efficiency is the highest, reaching 34.02%. When charging a 12V battery, the power generation efficiency is also higher. So choose to connect a 12V battery for the test, and the power generation test under different cycles, the test results are shown in Table 2.
  • FIGS. 7B and 9A-9C are schematic diagrams of the generator mounting seat of the power generating device in FIG. 7B.
  • the power generating device further includes a generator mounting seat 9 and a generator protective cover 75.
  • the generator is installed on the generator mounting base 9; as shown in Figures 9A and 9B, the center of the first mounting base 9 is provided with a generator mounting slot 92 and a generator shaft through hole, and the generator is mounted on the generator mounting slot 92
  • the rotating shaft 71 of the generator is located in the generator installation slot 92; the rotating shaft 71 of the generator passes through the generator shaft through hole and enters the air duct 1.
  • Fig. 9B shows the first side of the generator mounting base 9, and Fig.
  • the generator mounting base 9C shows the second side of the generator mounting base 9 opposite to the first side thereof, and the second side is provided with a second bearing housing 94, The second bearing is installed on the second bearing seat 94.
  • the generator mounting base 9 is fixedly connected to the first end of the first air duct 1.
  • the fixed connection is, for example, welding or bolt connection.
  • the first mounting base 9 is equivalent to a flange
  • the connection between the first mounting seat 9 of the generator and the first air duct 1 is flange connection.
  • the generator protection cover 75 covers the body 73 of the generator and is installed on the generator mounting seat 9.
  • the generator mounting seat 9 and the generator protective cover 75 are hermetically connected to seal the generator in a space to prevent the generator from being corroded by rain, sea water, fog, etc.
  • the generator mounting base 9 has an air hole 91 through which the gas in the air duct 1 is discharged or the air in the atmosphere enters the air duct 1 through the air hole 91 and then enters the air chamber 2.
  • the air hole 91 is located on the outside of the generator protective cover, so that the above-mentioned gas can pass through the air hole 91 to ensure that the gas in the air duct can be discharged smoothly or the gas in the atmosphere can enter the air duct and enter the air chamber while avoiding rainwater and seawater. Enter the airway.
  • the power generating device further includes a protective structure 13, which is located on the side of the generator protective cover away from the rotor 4, and includes a protective cap mounting seat 131, a protective cap 132 and a protective cap bracket 133.
  • the protective cap mounting base 131 is connected to the generator mounting base 9; for example, the protective cap mounting base 131 is a flange, and the connection between the protective cap mounting base 131 and the generator mounting base 9 is flange connection; the protective cap 132 covers the generator Mounting base 9 and protective cap mounting base 131.
  • the orthographic projection of the generator mounting seat 9 on a plane parallel to the surface of the protective cap mounting seat 131 facing the protective cap and the orthographic projection of the protective cap mounting seat 131 on the plane are both located in the orthographic projection of the protective cap 132 on the plane.
  • the protective cap bracket 133 connects the protective cap 132 and the protective cap mounting base 131 to mount the protective cap 132 on the protective cap mounting base 131.
  • FIG. 11A is a schematic structural diagram of yet another power generating device provided by an embodiment of the disclosure.
  • the power generating device includes the air turbine shown in FIG. 5;
  • FIG. 11B is a schematic structural diagram of another power generating device provided by an embodiment of the disclosure.
  • the power generation device includes the air turbine shown in FIG. 6.
  • the air duct 1, generator, rotor, stator and other structures of the power generating device shown in Figs. 11A and 11B are the same as those in Fig.
  • the air turbine provided by some embodiments of the present disclosure may include multiple air valves, or multiple air ducts and multiple rotors, and the multiple rotors correspond to the multiple air ducts one-to-one.
  • an air turbine includes a plurality of air valves and a plurality of air ducts, and the plurality of air valves corresponds to the plurality of air ducts one-to-one.
  • FIG. 11C is a schematic structural diagram of yet another power generation device provided by an embodiment of the present disclosure.
  • the air turbine of the power generation device includes a plurality of air valves, which are a first air valve 3 and a second air valve 3', respectively.
  • the air chamber further includes a fourth opening 24, and the second air valve 3'is connected to the fourth opening 24.
  • the structure of the second air valve 3' is the same as the structure of the first air valve 3, and the description in the previous embodiment can be referred to.
  • the first gas flow can enter the gas chamber 2 through the first gas valve 3 and the second gas valve 3'at the same time. Compared with the case where one gas valve is provided, the gas flow rate can be increased, thereby increasing the power generation efficiency.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

L'invention concerne une turbine à air et un dispositif de production d'énergie. La turbine à air comprend une chambre à air (2), une soupape à air (3) et un rotor (4). La chambre à air comprend une première ouverture (21) en communication avec l'atmosphère ; la pression d'air dans la chambre à air est réglable, et la différence entre la pression d'air dans la chambre à air et la pression atmosphérique présente une première différence de pression d'air et une seconde différence de pression d'air ; la soupape d'air est reliée à la chambre à air, et est conçue pour s'ouvrir sous l'action de la première différence de pression d'air de telle sorte que la chambre à air est en communication avec l'atmosphère au moyen de la soupape d'air et de la première ouverture de manière à former un premier flux d'air, et est fermée sous l'action de la seconde différence de pression d'air de telle sorte que la chambre à air est en communication avec l'atmosphère au moyen de la première ouverture de façon à former un second flux d'air, la direction de la première différence de pression d'air étant opposée à la direction de la seconde différence de pression d'air ; et le rotor est conçu pour être entraîné par le second flux d'air pour tourner. La turbine à air peut être utilisée pour convertir l'énergie cinétique du rotor en énergie électrique, par exemple, utiliser les fluctuations d'onde pour obtenir la première différence de pression d'air et la seconde différence de pression d'air et pour finir convertir l'énergie d'onde en énergie électrique.
PCT/CN2020/138594 2019-12-23 2020-12-23 Turbine à air et dispositif de production d'énergie WO2021129657A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201911342564.2A CN111005837A (zh) 2019-12-23 2019-12-23 空气透平以及发电装置
CN201911342564.2 2019-12-23
CN201922337562.6U CN212429078U (zh) 2019-12-23 2019-12-23 空气透平以及发电装置
CN201922337562.6 2019-12-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117052588A (zh) * 2023-10-11 2023-11-14 集美大学 一种振荡水柱式波浪能发电设备

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Publication number Priority date Publication date Assignee Title
JPS56146074A (en) * 1980-04-11 1981-11-13 Riyokuseishiya:Kk Float for wave electric power generating apparatus
US4719754A (en) * 1984-11-30 1988-01-19 Koichi Nishikawa Wave-activated power generating apparatus
CN104500325A (zh) * 2014-12-26 2015-04-08 涂崇贵 一种海浪发电装置
CN107514290A (zh) * 2017-09-28 2017-12-26 中国海洋大学 一种适用于亚洲海域振荡水柱式波能发电装置的非对称式空气透平
CN110966134A (zh) * 2019-11-15 2020-04-07 中国科学院广州能源研究所 一种漂浮振荡水柱式波浪能发电装置
CN111005837A (zh) * 2019-12-23 2020-04-14 杭州巨浪能源科技有限公司 空气透平以及发电装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56146074A (en) * 1980-04-11 1981-11-13 Riyokuseishiya:Kk Float for wave electric power generating apparatus
US4719754A (en) * 1984-11-30 1988-01-19 Koichi Nishikawa Wave-activated power generating apparatus
CN104500325A (zh) * 2014-12-26 2015-04-08 涂崇贵 一种海浪发电装置
CN107514290A (zh) * 2017-09-28 2017-12-26 中国海洋大学 一种适用于亚洲海域振荡水柱式波能发电装置的非对称式空气透平
CN110966134A (zh) * 2019-11-15 2020-04-07 中国科学院广州能源研究所 一种漂浮振荡水柱式波浪能发电装置
CN111005837A (zh) * 2019-12-23 2020-04-14 杭州巨浪能源科技有限公司 空气透平以及发电装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117052588A (zh) * 2023-10-11 2023-11-14 集美大学 一种振荡水柱式波浪能发电设备
CN117052588B (zh) * 2023-10-11 2024-01-30 集美大学 一种振荡水柱式波浪能发电设备

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