CN110671261B - Universal rotor - Google Patents

Universal rotor Download PDF

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Publication number
CN110671261B
CN110671261B CN201910991320.0A CN201910991320A CN110671261B CN 110671261 B CN110671261 B CN 110671261B CN 201910991320 A CN201910991320 A CN 201910991320A CN 110671261 B CN110671261 B CN 110671261B
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China
Prior art keywords
rotor
blade
rotation
curved
axis
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CN201910991320.0A
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Chinese (zh)
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CN110671261A (en
Inventor
常德永
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Suzhou Tuoyu Polymer Technology Co ltd
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Priority to CN201910991320.0A priority Critical patent/CN110671261B/en
Publication of CN110671261A publication Critical patent/CN110671261A/en
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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
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/005—Spiral-shaped propellers
    • 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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/121—Blades, their form or construction
    • 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
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • 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
    • Y02E10/20—Hydro energy
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention relates to a universal rotor in the field of mechanical engineering, which can be used for producing rotors for wind motors, water turbines, propellers, fans and aircraft. The universal rotor of the present invention comprises at least two arcuate blades positioned about the axis of rotation of the rotor. The curved side surfaces of the arcuate vanes are substantially parallel to the axis of rotation of the rotor. The concave curved surface of the arc-shaped blade is gradually slightly inclined from the top of the rotor near its rotation axis toward the base side of the blade and inclined toward the curved side surface of the adjacent arc-shaped blade so that they are connected at an angle. The upper edge of each blade is connected to a strip-like element, arranged similarly to the curved lateral surface of the arched blade, the height of which increases progressively from the top region to the base of the rotor.

Description

Universal rotor
Technical Field
The invention relates to the field of mechanical engineering, in particular to a rotor for wind motors, water turbines, propellers, fans and aircraft.
Background
Known rotors in the prior art are generally: comprising at least two arcuate (arcuate) blades positioned about the axis of rotation of the rotor on a turntable, connected to a drive shaft located near the axis of rotation of the rotor. Each blade is shaped as a strip and is formed by its curved side surfaces, both curved side surfaces of the blade (the convex curve of the outer side and the concave curve of the inner side) being substantially parallel to the axis of rotation of the rotor; the curved side surfaces of the arc-shaped blades are slightly inclined toward the base edge of the blade from the top through which the rotation axis of the rotor passes, and are inclined toward the curved side surfaces of the adjacent arc-shaped blades connected at an angle.
In the known rotor, at least two arc-shaped portions of the blades are in the form of sheet-like elements arranged around the axis of rotation of the rotor. The plane created by the curved side surface of the blade is substantially parallel to the axis of rotation of the rotor. A disadvantage of such rotors is the insufficient utilization of the energy flow: the energy flow directed along the rotational axis of the rotor is reflected in front of the rotating disk and mainly acts as a turbulent energy flow at the curved surfaces of the blades, which reduces the efficiency of the conversion of the energy flow into a rotational movement of the rotor.
Disclosure of Invention
The object of the present invention is to improve the known rotor described above in that the energy conversion efficiency of the energy flow into the rotational movement of the rotor is increased by changing the design of the energy flow acting mainly directly on the curved surfaces of the blades. The solution of the invention is instead focused on improving the known rotor by increasing the exploitation of the energy flow reflected from the curved lateral surface of the curved blade by means of a design change, so as to increase the efficiency of the energy transfer of the energy flow to the rotational movement of the rotor.
Specifically, the technical problem of the present invention is solved by the following solutions:
universal rotor comprising at least two curved blades extending around the rotation axis of the rotor, said curved blades being formed by curved side surfaces (an outer convex curve and an inner concave curve) substantially parallel to the rotation axis of the rotor, said curved side surfaces of the curved blades being slightly (slightly) inclined from the top near the rotation axis of the rotor towards the base edge of the blade and inclined towards the curved side surface of the adjacent curved blade so that the two blades are connected at an angle, wherein the upper edge (on the side away from the rotation axis) of each blade is provided with a strip-like element (angularly, preferably perpendicularly, arranged to the concave curve) arranged similarly to the curved side surfaces of the curved blades (substantially parallel to the rotation axis; slightly inclined from the top near the rotor towards the base edge of the blade), the height (width) of the strip-like element increases gradually from the top of the rotor to its base, the height being at the maximum at the base of the rotor from 1/5 to 1/3 of the width of the concave curve of the curved blade.
The combination of the above-mentioned main features of the universal rotor of the invention provides an increase in the utilization of the energy flow which can be reflected by the curved side surfaces (concave curves) of the curved blades due to the additional reflection of the ribbon elements it introduces. This design has the positive effect of a higher, additional conversion of the energy flow into rotation of the rotor without changing the plane of rotation of the rotor and minimizing its weight. At the same time, another positive effect of this design is that it creates a larger contact area for some indirect flow of non-uniform energy flow without changing the overall size of the rotor, which helps to improve and enhance the energy conversion in the rotational movement of energy flow to the rotor.
Drawings
Fig. 1 is a schematic structural view of a general rotor of the present invention.
Detailed Description
The following examples are only for illustrating the present invention, and the scope of the present invention is not limited to only the following examples. The purpose of the present invention can be achieved by those skilled in the art according to the present disclosure.
A versatile rotor is provided, consisting of three arc-shaped blades (a, b, c), each having a curved lateral surface: convex curve 1 and concave curve 2, which are positioned around the axis of rotation 3 of the rotor. At the upper edge of each blade is a strip-like element 4, the height of which increases from the top of the rotor to its base. The maximum value of the height of the band-shaped member 4 at the rotor base position is one fifth to one third of the width 5 of the concave curved surface 2. The arrow 6 indicates the direction of motion of the energy flow and the point 7 is where its conditioned jet is reflected from the concave curve 2. The elements for the rotation of the rotor are not included in the object and solution of the invention and are therefore not shown in the figures, the rotating elements can be made as shafts, hubs or threaded holes.
The working principle of the universal rotor of the present invention is as follows.
When using the universal rotor of the invention in a windmill, the rotor is placed horizontally towards the wind flow indicated by arrow 6. The wind flow "lands" at an angle on the curved side surfaces of the two arc-shaped blades and causes the rotor to rotate about the axis 3. The effect of wind flow on the curved side surface 1 is limited by the insignificant power dissipation flow. The jet 6 reflects from the surface 2 (e.g. at point 7). At the rotor close to the starting rotation speed, the jet 6 moves further to the inner surface of the strip-like element 4 and then beyond the plane of the base (bottom) of the rotor. As the rotor speed approaches the optimum speed, the jet 6 moves further beyond the rotor base plane. When the rotor speed exceeds the optimum (gusts of wind will still occur by a short inertia when they subside), the jet 6 moves further to the curved side 1, after which it exceeds the plane of the base, whereby the rotor speed is reduced to the optimum. Under practical operating conditions, at an optimum rotor speed, after the first reflection, a portion of the jet also moves to the inner surface of the strip-like element 4 and provides some energy to rotate the rotor. The maximum value of the height of the strip-like element 4, which is about one third of the width 5, is a preferred value for low wind speed areas; while in areas where there is strong wind for most of the time, a lower altitude is preferred. Non-uniform energy flow with cross flow requires a larger contact area in order to increase the rotor speed.
Similar to the above, the above-described universal rotor of the present invention may also be used as part of a water turbine, propeller, fan or aircraft.
Experimental tests carried out on the universal rotor of the invention show that it can be started and rotated at a wind speed of 0.3m/s and can thus be applied to existing industrial wind farms. However, the use of the universal rotor assembly provided by the present invention in existing products as described above can increase the conversion of wind energy by 20% or more, based on wind flow.
The above description is only an example of the present invention, and is not intended to limit the scope of the present invention in any way. It should be noted that any modification, change, improvement or simple substitution of the above embodiments according to the technical spirit of the present invention is still within the scope of the present invention.

Claims (1)

1. A rotor for wind actuation, the rotor comprising at least two arcuate blades extending about an axis of rotation of the rotor, the arcuate vanes are formed by curved side surfaces that are substantially parallel to the axis of rotation, the concave curve of the arcuate vane is slightly inclined from the top of the rotor near the axis of rotation to the base edge of the vane, and is inclined toward the curved side surface of the adjacent arc-shaped vane, so that the two arc-shaped vanes are connected at an angle, characterized in that the upper edge of each blade is connected with a strip-like element arranged similarly to the curved lateral surface of the arched blade, the height of which gradually increases from the top region to the base of the rotor, the height at the base of the rotor being at a maximum of 1/5 to 1/3 of the width of the concave curve of the arcuate vane.
CN201910991320.0A 2019-10-18 2019-10-18 Universal rotor Active CN110671261B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910991320.0A CN110671261B (en) 2019-10-18 2019-10-18 Universal rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910991320.0A CN110671261B (en) 2019-10-18 2019-10-18 Universal rotor

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CN110671261A CN110671261A (en) 2020-01-10
CN110671261B true CN110671261B (en) 2021-06-08

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205677762U (en) * 2016-06-01 2016-11-09 浙江长兴圣风环保科技有限公司 A kind of windmill of vertical axis aerogenerator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1249406A (en) * 1998-09-30 2000-04-05 协同工业私人有限公司 Fan wheel
EP1484510B1 (en) * 2002-02-28 2007-04-11 Daikin Industries, Ltd. Fan
CN206723140U (en) * 2017-03-23 2017-12-08 孙朝新 Study of front guide impeller of axial flow pumps structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205677762U (en) * 2016-06-01 2016-11-09 浙江长兴圣风环保科技有限公司 A kind of windmill of vertical axis aerogenerator

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Effective date of registration: 20210803

Address after: 722405 No. 3, floor 2, unit 1, building 1, No. 001, Youhu Road, caijiapo Town, Qishan County, Baoji City, Shaanxi Province

Patentee after: Chang Deyong

Address before: 215011 room 420, South Golden House Decoration Plaza office building, Binhe Road, high tech Zone, Suzhou City, Jiangsu Province

Patentee before: Suzhou Tuoyu Polymer Technology Co.,Ltd.

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