CN101586535B - Cascade pump for wind power generation transduction - Google Patents

Cascade pump for wind power generation transduction Download PDF

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Publication number
CN101586535B
CN101586535B CN2009100230708A CN200910023070A CN101586535B CN 101586535 B CN101586535 B CN 101586535B CN 2009100230708 A CN2009100230708 A CN 2009100230708A CN 200910023070 A CN200910023070 A CN 200910023070A CN 101586535 B CN101586535 B CN 101586535B
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China
Prior art keywords
oil
hydraulic pump
flange
pump
plunger
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Expired - Fee Related
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CN2009100230708A
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CN101586535A (en
Inventor
要义勇
李大海
赵丽萍
李天石
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Xian Jiaotong University
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Xian Jiaotong University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Abstract

The invention discloses a cascade pump for wind power generation transduction, which comprises hydraulic pumps, check valves, an oil outlet pipeline and an oil inlet pipeline, wherein a plurality of hydraulic pumps are arranged through connection in series with each other; the left end of each hydraulic pump is connected with the oil outlet pipeline; the right end of each hydraulic pump is connected with the oil inlet pipeline through one check valve; each hydraulic pump is provided with a flange spline shaft; a spline shaft sleeve, a flange and a mounting plate are arranged on each flange spline shaft; the spline shaft sleeve of a previous hydraulic pump is arranged outside the flange spline shaft of a posterior hydraulic pump; and the mounting plate of the previous hydraulic pump is fixedly arranged together with the flange of the posterior hydraulic pump. The invention solves high cost, complex wind power generation technology, difficult installation and maintenance and numerous problems of the prior wind power generation device, reduces the overall weight of wind power generation devices, greatly saves metal materials and investment in wind power generation equipment, and provides a transduction device which is more convenient, effective and friendly to environment.

Description

A kind of cascade pump for wind power generation transduction
Technical field:
The present invention relates in wind power generation field particularly a kind of wind power generation transduction equipment--low speed hydraulic pressure transducing cascade pump.
Background technique:
Wind energy is the energy very important and that reserves are huge, and its safety, cleaning, abundant can provide continuously, and the stable energy is with the fastest developing speed.But energy-conversion technique of the general employing of existing at present wind generating unit is the mechanical energy of mechanical rotation with wind energy transformation, drives generator then and carries out wind-power electricity generation.Because natural wind speed is extremely unsettled, the output power of wind-driven generator is also extremely unstable, the electric energy that wind-driven generator sends generally is can not directly be used on the electrical equipment or be transported on the electrical network, therefore, for invariablenes turning speed and the investment of minimizing wind generating unit that makes wind-driven generator, though the change slurry that some wind energy conversion systems occurred can not satisfy the needs of wind generating technology development far away apart from regulation technology, booster engine, AC excitation variable speed constant frequency double-fed generator technology and low-frequency ac inversion transformation technique.
This shows that there is following problem in an energy-conversion technique of existing wind generating unit:
The costliness of existing booster engine: because wind speed is lower, make that blade can only rotate with lower rotating speed in the wind generating unit, and existing common generator requires rotating speed higher, therefore, in order to solve this contradiction, existing wind generating unit adopts booster engine to improve rotating speed usually, still, existing booster engine is very expensive, causes unnecessary waste.
The generator speed instability: because booster engine is the velocity variations mechanism of a fixed rotating speed ratio, therefore, booster engine will amplify the influence of the wind speed of pulsatile change to generator speed, cause the rotating speed of generator ceaselessly to change, influence generating quality.
AC excitation variable speed constant frequency double-fed generator technical costs is higher: in order to overcome wind-force not steadily to the influence of generating quality, adopt variable speed constant frequency doubly-fed generation technology, increase the investment of existing wind generating unit greatly, cause unnecessary waste.
Summary of the invention:
The object of the invention is to provide wind power generation transducing cascade pump, can solve the great number of issues such as costliness, wind generating technology complexity of booster engine in the existing wind generating unit, for society provides a kind of transducing head of convenient effective environment-friendly and green, promote current wind generating technology and advance.
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of cascade pump for wind power generation transduction is provided, comprise oil hydraulic pump, one-way valve 18, flowline 17 and inflow pipeline 16; The installation that is one another in series of a plurality of oil hydraulic pumps, the left end of each oil hydraulic pump is connected with flowline 17, and the right-hand member of each oil hydraulic pump is connected with inflow pipeline 16 by an one-way valve 18; Described oil hydraulic pump is provided with hub splines 6, flange 2 and the mounting plate 5 that is provided with on flange splined shaft 1, the flange splined shaft 1; The hub splines 6 of previous oil hydraulic pump is installed in flange splined shaft 1 outside of a back oil hydraulic pump, the mounting plate 5 of previous oil hydraulic pump and 2 fixed installations of the flange of a back oil hydraulic pump.
Described oil hydraulic pump also comprises fuel feeding interface 14 on valve flow oil distribution casing 3, shell 4, plunger 7, plunger pressure sleeve 8, high pressure distribution oil ring 9, low pressure oil sucting one-way valve 10, high-pressure oil feed one-way valve 11, low pressure distribution oil ring 12, rotating cam 13, the shell 4 and the oil suction interface 15 on the shell 4; According to order from left to right, flange 2, valve flow oil distribution casing 3, shell 4 and mounting plate 5 are socketed in above the flange splined shaft 1 successively; Be provided with rotating cam 13 between flange splined shaft 1 and the shell 4; Be provided with plunger 7 between shell 4 and the rotating cam 13; Plunger 7 overcoat plunger pressure sleeves 8; Shell 4 inwalls are provided with high pressure distribution oil ring 9, low pressure oil sucting one-way valve 10, high-pressure oil feed one-way valve 11 and low pressure distribution oil ring 12; Rotating cam 13 rotates and drives plunger 7 fore and aft motion in plunger pressure sleeve 8, from the 12 interior oil suctions of low pressure distribution oil ring, extrudes hydraulic oil to high pressure distribution oil ring 9 during compression when stretching out; Oil hydraulic pump is provided with 3-12 plunger 7.
The installation that is one another in series of described a plurality of oil hydraulic pump, the adjacent oil hydraulic pump differential seat angle that is installed in series is the 20-90 degree.
Described cascade pump is connected with the wind-force rotary main shaft by shaft coupling; The rotation of blade drives cascade pump and rotates together, changes rotating mechanical energy into the hydraulic pressure energy.
The present invention can solve costliness, wind generating technology complexity and the great number of issues such as wind generating unit installation and maintenance difficult of booster engine in the existing wind generating unit, alleviate the overall weight of wind generating unit, a large amount of investments of saving metallic material and wind-power electricity generation equipment, for society provides a kind of transducing head of convenient effective environment-friendly and green, promote current wind generating technology and advance.
Description of drawings:
Fig. 1 is a cascade pump fundamental diagram of the present invention;
Fig. 2 is an oil hydraulic pump plan view of the present invention;
Fig. 3 is an oil hydraulic pump left view of the present invention.
Wherein: flange splined shaft 1, flange 2, valve flow oil distribution casing 3, shell 4, mounting plate 5, hub splines 6, plunger 7, plunger pressure sleeve 8, high pressure distribution oil ring 9, low pressure oil sucting one-way valve 10, high-pressure oil feed one-way valve 11, low pressure distribution oil ring 12, rotating cam 13, fuel feeding interface 14, oil suction interface 15, inflow pipeline 16, flowline 17, one-way valve 18.
Embodiment:
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
Referring to Fig. 1,2,3, a kind of cascade pump for wind power generation transduction comprises oil hydraulic pump, one-way valve 18, flowline 17 and inflow pipeline 16; The installation that is one another in series of a plurality of oil hydraulic pumps, the left end of each oil hydraulic pump is connected with flowline 17, and the right-hand member of each oil hydraulic pump is connected with inflow pipeline 16 by an one-way valve 18; Described oil hydraulic pump is provided with hub splines 6, flange 2 and the mounting plate 5 that is provided with on flange splined shaft 1, the flange splined shaft 1; The hub splines 6 of previous oil hydraulic pump is installed in flange splined shaft 1 outside of a back oil hydraulic pump, the mounting plate 5 of previous oil hydraulic pump and 2 fixed installations of the flange of a back oil hydraulic pump.
Described oil hydraulic pump also comprises fuel feeding interface 14 on valve flow oil distribution casing 3, shell 4, plunger 7, plunger pressure sleeve 8, high pressure distribution oil ring 9, low pressure oil sucting one-way valve 10, high-pressure oil feed one-way valve 11, low pressure distribution oil ring 12, rotating cam 13, the shell 4 and the oil suction interface 15 on the shell 4; According to order from left to right, flange 2, valve flow oil distribution casing 3, shell 4 and mounting plate 5 are socketed in above the flange splined shaft 1 successively; Be provided with rotating cam 13 between flange splined shaft 1 and the shell 4; Be provided with plunger 7 between shell 4 and the rotating cam 13; Plunger 7 overcoat plunger pressure sleeves 8; Shell 4 inwalls are provided with high pressure distribution oil ring 9, low pressure oil sucting one-way valve 10, high-pressure oil feed one-way valve 11 and low pressure distribution oil ring 12; Rotating cam 13 rotates and drives plunger 7 fore and aft motion in plunger pressure sleeve 8, from the 12 interior oil suctions of low pressure distribution oil ring, extrudes hydraulic oil to high pressure distribution oil ring 9 during compression when stretching out; Oil hydraulic pump is provided with 3-12 plunger 7.
The installation that is one another in series of described a plurality of oil hydraulic pump, the adjacent oil hydraulic pump differential seat angle that is installed in series is the 20-90 degree.
Described cascade pump is connected with the wind-force rotary main shaft by shaft coupling; The rotation of blade drives cascade pump and rotates together, changes rotating mechanical energy into the hydraulic pressure energy.
Oil hydraulic pump mainly is made up of shell 4, mounting plate 5, plunger 7, plunger pressure sleeve 8, rotating cam 13, fuel feeding interface 14 and oil suction interface 15.In cascade pump, by the fore and aft motion of plunger 7, finished from 15 oil suctions of oil suction interface, provide high-pressure and hydraulic oil to fuel feeding interface 14, realized the rotary machine of wind power generation blade can be converted into the hydraulic pressure energy.In oil hydraulic pump, 3-12 hydraulic plunger 7 transducing unit are arranged, be convenient to improve the flow and the efficient of pump along the design of radial direction circle distribution.
Mainly form by flange splined shaft 1, flange 2, shell 4, mounting plate 5 and hub splines 6.The effect of this unit is with the wind power generation hydraulic series connection of pumps and according to several angle connection to be installed, and has improved the total flow and the efficient of wind generating unit.
Mainly form by valve flow oil distribution casing 3, shell 4, mounting plate 5, high pressure distribution oil ring 9, low pressure oil sucting one-way valve 10, high-pressure oil feed one-way valve 11 and low pressure distribution oil ring 12.The effect of this unit is the passage that distributes hydraulic oil, guarantees that hydraulic oil carries out oil suction in the process of stretching out, and carries out fuel feeding in compression process.
Cascade pump is made up of 4 oil hydraulic pumps, and each oil hydraulic pump all adopts an end flange 2 one end axle sleeve mounting structures, with the oil hydraulic pump use that is installed in series; The blade of wind generating unit links to each other with first oil hydraulic pump by shaft joint 3 with rotary main shaft 2, the rotating band hydrodynamic press pump of blade rotates together, change rotating mechanical energy into the hydraulic pressure energy, therefore, the flow of total wind generating unit oil hydraulic pump is the summation of each oil hydraulic pump flow, and total wind power generation transduction rating of set is each pump power summation.Adopt valve flow mode to join oil when oil hydraulic pump uses, each oil hydraulic pump all uses one-way valve 18 and other pump isolated, when guaranteeing that some oil hydraulic pumps break down, can not influence wind-power generating system ground proper functioning.
With reference to figure Fig. 3, the wind power generation transducing is with the actual angle schematic representation that is installed in series of cascade pump.When the cascade pump series connection is installed, adjacent pump all differs an angle, make the maximum value position of each pump duty of cascade pump after series connection also differ this angle, therefore, effectively the mass flow discrepancy of resolution system under the tick-over condition is even, make the pressure pulsation of whole wind generating unit obviously reduce, effective pressure obviously increases.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.

Claims (3)

1. a cascade pump for wind power generation transduction is characterized in that: comprise oil hydraulic pump, one-way valve (18), flowline (17) and inflow pipeline (16); The installation that is one another in series of a plurality of oil hydraulic pumps, the left end of each oil hydraulic pump is connected with flowline (17), and the right-hand member of each oil hydraulic pump is connected with inflow pipeline (16) by an one-way valve (18); Described oil hydraulic pump is provided with flange splined shaft (1), flange splined shaft (1) is gone up hub splines (6), flange (2) and the mounting plate (5) that is provided with; The hub splines of previous oil hydraulic pump (6) is installed in flange splined shaft (1) outside of a back oil hydraulic pump, and the mounting plate of previous oil hydraulic pump (5) fixedly mounts with the flange (2) of a back oil hydraulic pump; The adjacent oil hydraulic pump differential seat angle that is installed in series is the 20-90 degree.
2. according to the described a kind of cascade pump for wind power generation transduction of claim 1, it is characterized in that: described oil hydraulic pump also comprises fuel feeding interface (14) on valve flow oil distribution casing (3), shell (4), plunger (7), plunger pressure sleeve (8), high pressure distribution oil ring (9), low pressure oil sucting one-way valve (10), high-pressure oil feed one-way valve (11), low pressure distribution oil ring (12), rotating cam (13), the shell (4) and the oil suction interface (15) on the shell (4); According to order from left to right, flange (2), valve flow oil distribution casing (3), shell (4) and mounting plate (5) are socketed in above the flange splined shaft (1) successively; Be provided with rotating cam (13) between flange splined shaft (1) and the shell (4); Be provided with plunger (7) between shell (4) and the rotating cam (13); Plunger (7) overcoat plunger pressure sleeve (8); Shell (4) inwall is provided with high pressure distribution oil ring (9), low pressure oil sucting one-way valve (10), high-pressure oil feed one-way valve (11) and low pressure distribution oil ring (12); Rotating cam (13) rotates and drives plunger (7) fore and aft motion in plunger pressure sleeve (8), from the interior oil suction of low pressure distribution oil ring (12), extrudes hydraulic oil to high pressure distribution oil ring (9) during compression when stretching out; Oil hydraulic pump is provided with 3-12 plunger (7).
3. according to the described a kind of cascade pump for wind power generation transduction of claim 1, it is characterized in that: described cascade pump is connected with the wind-force rotary main shaft by shaft coupling; The rotation of blade drives cascade pump and rotates together, changes rotating mechanical energy into the hydraulic pressure energy.
CN2009100230708A 2009-06-26 2009-06-26 Cascade pump for wind power generation transduction Expired - Fee Related CN101586535B (en)

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CN2009100230708A CN101586535B (en) 2009-06-26 2009-06-26 Cascade pump for wind power generation transduction

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102403944B (en) * 2011-07-28 2014-01-15 浙江大学 Variable speed constant frequency method for wind power generation and device thereof
CN102996393B (en) * 2012-11-30 2015-07-08 江苏大学 Variable load multiple ultra-low speed inner curve wind energy absorbing plunger pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274010A (en) * 1977-03-10 1981-06-16 Sir Henry Lawson-Tancred, Sons & Co., Ltd. Electric power generation
US4496846A (en) * 1982-06-04 1985-01-29 Parkins William E Power generation from wind
FR2566466A1 (en) * 1984-06-21 1985-12-27 Kafcsak Joseph Wind machine having two coaxial rotors with regulation of the position of the blades
DE4328872A1 (en) * 1993-08-27 1995-03-02 Walter Graef Pump having two chambers for conveying (delivering) hydraulic and pneumatic media, which can be operated in axial and radial directions
CN2211505Y (en) * 1993-06-11 1995-11-01 周庆耕 Cam-rotor vane pump
WO2008113699A2 (en) * 2007-03-21 2008-09-25 Rle-International Gmbh Energy conversion device with hydraulic drive

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274010A (en) * 1977-03-10 1981-06-16 Sir Henry Lawson-Tancred, Sons & Co., Ltd. Electric power generation
US4496846A (en) * 1982-06-04 1985-01-29 Parkins William E Power generation from wind
FR2566466A1 (en) * 1984-06-21 1985-12-27 Kafcsak Joseph Wind machine having two coaxial rotors with regulation of the position of the blades
CN2211505Y (en) * 1993-06-11 1995-11-01 周庆耕 Cam-rotor vane pump
DE4328872A1 (en) * 1993-08-27 1995-03-02 Walter Graef Pump having two chambers for conveying (delivering) hydraulic and pneumatic media, which can be operated in axial and radial directions
WO2008113699A2 (en) * 2007-03-21 2008-09-25 Rle-International Gmbh Energy conversion device with hydraulic drive

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