CN101852176B - Transportation technology of hydraulic oil for hydraulic control equipment of vertical axial wind driven generator - Google Patents
Transportation technology of hydraulic oil for hydraulic control equipment of vertical axial wind driven generator Download PDFInfo
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- CN101852176B CN101852176B CN2009100486199A CN200910048619A CN101852176B CN 101852176 B CN101852176 B CN 101852176B CN 2009100486199 A CN2009100486199 A CN 2009100486199A CN 200910048619 A CN200910048619 A CN 200910048619A CN 101852176 B CN101852176 B CN 101852176B
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- 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
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- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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- 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
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Abstract
The invention relates to a transportation device of hydraulic oil for hydraulic control equipment of a vertical axial wind driven generator, which can realize that: oil flow in a hydraulic pipeline in a fixed occasion is transmitted into a hydraulic pipeline on a wind wheel rotary platform; sealing reinforcement measures such as support of a ball-bearing, double sealing and application of a combined type seal ring, and the like are carried out on a hydraulic rotating joint; a hydraulic rotating joint and a wind wheel spindle are connected by a long output pipe to form a high pressure oil transportation passage; an annular concentric cavity formed by the long output pipe and an inner wall of a shaft centre hole form a hydraulic control equipment oil-return passage; the hydraulic rotating joint is driven to rotate by the connecting mode of a radial straight end-face key; and the integral installation of the hydraulic rotating joint is also realized, so that the whole oil transportation system has small-dimension structure, low cost of manufacture, good sealing efficiency, long service life, convenient installation and maintenance and the like, can adopted by the vertical axis wind driven generator, and thus can adjust the rotating angle of a wind wheel blade by the means of hydraulic control so that the improvement of wind energy conversion efficiency can be possible.
Description
Affiliated technical field:
Patent of the present invention relates to a kind of feedway of hydraulic oil for hydraulic control equipment of vertical axial wind driven generator, and it belongs to the hydraulics field.
Background material:
The mounting type of the wind wheel blade of present middle-size and small-size vertical axis aerogenerator all is fixed, can not rotate, and it is an impediment to the raising of wind energy conversion efficiency.Along with vertical axis aerogenerator power constantly enlarges, improve the wind energy conversion efficiency and seem more and more important.One of effective measures that improve the wind energy conversion efficiency are exactly by the fixed rotary type that is improved to the installation form of wind wheel blade; Its blade angle is along with wind direction, wind speed, wind speed round and blade factor such as residing position on wind wheel; Control through computer; Constantly, rotate in an orderly manner, to obtain the optimal wind energy conversion efficiency.The mode of control blade rotation has electronic and hydraulic pressure.Because the power of electronic control is less than normal relatively,, adopt hydraulic control mode beyond doubt for the control of high-power vertical shaft wind turbines rotor blade rotation.Since hydraulic control device be mounted in controlling object be wind wheel blade near, it is along with wind wheel rotates together, and to hydraulic control device the hydraulic power unit of high pressure oil is provided, because of volume is big, reasons such as Heavy Weight can only be installed in non-rotary fixedly place.How the high pressure oil that is provided by it is delivered among the hydraulic-pressure control apparatus that is in rotation status, how about turns back to the hydraulic oil after using among the oil sump tank of hydraulic power unit.Can the hydraulic oil for hydraulic control equipment conveying technology have become vertical axis aerogenerator adopt hydraulic control mode to regulate one of key technology of wind wheel blade corner.
Owing in vertical axis aerogenerator, adopt hydraulic control mode to regulate the wind wheel blade established angle, be a new technology to improve wind-driven generator wind energy conversion efficiency, in documents and materials, do not see the report of relevant hydraulic oil conveying technology.In known hydraulics field, use a kind of hydraulic rotary joint, be exactly the oil of the hydraulic pipe line of stationary applica-tions stream, be transported to the hydraulic component in the hydraulic pipe line that is in rotary state through it.But it is lower that this hydraulic rotary joint all uses at rotating speed, the occasion that rotating diameter is less.And in vertical axis aerogenerator, if use this type hydraulic rotary joint, the occasion that can supply install is exactly wind wheel main shaft place.Diameter for the vertical axis aerogenerator wind wheel main shaft more than hundred kilowatts is all very thick, and is all in (200-250) millimeter, bigger even.Make the physical dimension of swivel joint very big like this, the peripheral velocity of swivel joint is higher relatively, and ring wear strengthens.The pressure of the hydraulic oil that hydraulic control system requirement simultaneously provides is generally between 7Mpa-10Mpa.Such operating conditions wants hydraulic rotary joint to reach the satisfactory sealing effect and long operating life is difficult to reach.When if the wearing and tearing of seal arrangement and damage need to change, for this conventional hydraulic rotary joint, because reasons in structure must be dismantled speedup box and the coupling that is connected with the wind wheel main shaft, its difficulty is self-evident.In addition; Also to consider the oil return of hydraulic-pressure control apparatus hydraulic oil, two cover hydraulic rotary joints then need be installed, make its comprehensive manufacture cost become higher; So this technological scheme possible in theory; Be actually and be difficult to adopted, must improve, must take all factors into consideration from aspects such as design, manufacturing, installation, operation and costs.
Summary of the invention:
In order to overcome the design a series of shortcoming that hydraulic rotary joint brought at wind wheel main shaft place, promptly the hydraulic rotary joint physical dimension is huge, and peripheral velocity is big; Ring wear is fast, and operating life is short, and the major diameter seal ring costs an arm and a leg; Manufacture cost is high, and maintenance difficulty etc. is installed.The invention provides a kind of hydraulic oil for hydraulic control equipment of vertical axial wind driven generator conveying technology; Utilize the hydraulic oil transporting system of this technology manufacturing to have good complex art characteristic; It can be adopted by vertical axis aerogenerator; Regulate wind wheel leaf corner for vertical axis aerogenerator adopts hydraulic control mode, possibility has been arranged thereby improve the wind energy conversion efficiency.
Patent of the present invention solves the technological scheme that its technical problem adopted:
1. can hydraulic rotary joint be used, and receives the restriction of three factors, i.e. peripheral velocity, oil pressure and oil temperature.Peripheral velocity is big more, and oily Wen Yuegao, oil pressure are high more, and its sealing effect is poor more, and operating life is low more.Adopting major diameter hydraulic rotary joint cost to improve, also is the problem that the user extremely pays close attention to.The height of oil pressure is to be determined by hydraulic control system design, and low excessively oil pressure is the performance that will influence hydraulic control system, and the height of oil temperature is determined by environmental conditions and hydraulic control system consumption heating amount.Make hydraulic rotary joint obtain good sealing effect and long operating life, have to set about from the peripheral velocity that reduces hydraulic rotary joint.Because the rotating speed of swivel joint is determined that by the pneumatic characteristic of wind-driven generator unique feasible program that will reduce peripheral velocity is to dwindle the diameter of swivel joint.
Wind turbines rotor axle system is made up of wind wheel main shaft (1) and speedup box lower velocity shaft (2), links together both reliably with coupling (3).But the straight warp of two axles is all very thick, should not hydraulic rotary joint be set at these positions.If move to it in speedup box lower velocity shaft (2) underpart, then the rotation of hydraulic rotary joint directly no longer receives the influence of the wind wheel main shaft (1) and speedup box lower velocity shaft (2) diameter of axle through size, decides and calculate resulting latus rectum by the hydraulic fluid flow rate size.Therefore the rotating diameter of hydraulic rotary joint can dwindle (3-5) doubly, and its peripheral velocity can be descended significantly, and operating conditions is improved, and sealing effect and operating life effectively improve.
2. the mounting point of hydraulic rotary joint is displaced downwardly to speedup box lower velocity shaft (2) bottom, and the hydraulic oil of its output will be transported on the wind wheel rotation platform, up and down at a distance of several meters, takes following measures for implementing the hydraulic oil conveying:
A) output of design long tube (4), it can not only bear the high pressure of hydraulic oil, and sufficient length is arranged, and can arrive to the wind wheel rotation platform from speedup box lower velocity shaft (2) underpart;
B) speedup box lower velocity shaft (2) is opened center hole, runs through holoaxial, and its diameter should guarantee to export long tube (4) freely to be passed through;
C) wind wheel main shaft (1) is being located out stepped bore near speedup box lower velocity shaft (2), little hole depth, macropore is shallow, its diameter respectively with match other part requirement and deciding, its length should guarantee that hydraulic oil is transported on the wind wheel rotation platform.
3. output long tube (4) runs through speedup box lower velocity shaft (2) center hole and wind wheel spindle hole.Two road O RunddichtringOs (5) are installed in the upper end portion of output long tube (4), are embedded among the little center hole of wind wheel main shaft (1), require sealing.Two road O RunddichtringOs (5) are also installed in the underpart of output long tube (4), are embedded among the live spindle (6) of swivel joint, require sealing.The hydraulic oil of the hydraulic rotary joint output of adopting such mounting type to make to be in lower is sent on the rotation platform, and guarantees to carry not have and leak.
4. the drainback passage of hydraulic-pressure control apparatus is by outer wall and the center bore inner wall face of speedup box lower velocity shaft (2) and the annular concentric cavity volume formation that lower velocity shaft wind wheel main shaft (1) center bore inner wall face forms of output long tube (4).The oil return that is in the hydraulic-pressure control apparatus discharge on the wind wheel rotation platform is collected to the T mouth, through the annular concentric drainback passage, flows in the casing of speedup box, enters the oil sump tank to hydraulic power unit to the flow in the speedup box casing by oil return house steward (13) at last.Adopt this structure can save a hydraulic rotary joint, reduce cost.
5. in the middle of wind wheel main shaft (1) and speedup box lower velocity shaft (2); A semitight ring (11) is set; Its first half is equipped with two road O RunddichtringOs (12), is embedded in the big center hole of wind wheel main shaft (1), guarantees its sealing; The Lower Half of its semitight ring (11) is contained in speedup box lower velocity shaft (2) center hole, and leaves bigger gap.Such structure can make the oil return of hydraulic-pressure control apparatus can not overflow from the junction of coupling (3), can not hinder the installation of wind wheel main shaft (1) and speedup box lower velocity shaft (2) again.
6. in order to improve the hydraulic rotary joint functional reliability, prolong operating life, make it can adapt to the vertical axis aerogenerator requirements of one's work, adopt conventional hydraulic rotary joint to be difficult to be competent at.Adopt following technical measures to improve for this reason:
A) live spindle of hydraulic rotary joint (6) is installed within the swivel joint housing (8); A ball bearing (9) respectively is installed as supporting at the two ends of live spindle (6); Make the gap between live spindle (6) and the swivel joint housing (8) keep constant; Guarantee the seal ring uniform-compression, improve the seal ring operating conditions, can prolong the seal ring operating life;
B) adopt two seal structures, further improve the sealing reliability of hydraulic rotary joint;
C) adopt combined labyrinth and carbon gland coil apparatus (10), improve the wear-resistant ability of seal ring.
7. gasket set is the Primary Component of hydraulic rotary joint, and its performance quality is very big to the sealing effect and the operating life influence of hydraulic rotary joint.Patent of the present invention adopts combined labyrinth and carbon gland coil apparatus (10); It is made up of inside and outside two seal elements; Seal element is the O RunddichtringO in it; Processed by oil resistant rubber, it provides elastic support for the exterior seal ring element, and seal ring can closely be contacted with the inner chamber wall of swivel joint housing (8).What really play sealing and taking up wear is the exterior seal ring element.It is to have solid powder material mixing compacting wear-resistant and that self-lubricating property is good by the very little macromolecular material interpolation of friction factor to form.Owing to adopt this combined labyrinth and carbon gland coil apparatus (10), make hydraulic rotary joint can be under higher peripheral velocity and higher oil pressure operating conditions reliably working.
8. the following end flange of output long tube (4) is with the lower end surface axial restraint of screw (18) with speedup box lower velocity shaft (2); Have two at a distance of 180 degree radial end face keyways in the end flange place down at output long tube (4); Radial end face key (7) is installed, and is fixed on the following end flange of output long tube (4) with screw (19).Also have two radial end face keyways in the upper-end surface of live spindle (6), cooperate, realize that key connects with radial end face key (7).So just, can realize speedup box lower velocity shaft (2) driven rotary axle (6) rotation, and allow hydraulic rotary joint to be assembled into parts, integral installation separately.This has brought greatest convenience for installation, inspection, the maintenance of hydraulic pressure swivel joint.
9. adopt the design method of structure sealing, do not have rotary component to be exposed among the air.Even carry in the way at hydraulic oil seal failure to occur, make the leakage of hydraulic oil, it leaks oil and also can only drain in the speedup casing case, and imports the oil sump tank of hydraulic power unit to speedup box casing internal drainage by oil return house steward (13), can not cause the oil pollution to environment.This also is an important feature of patent of the present invention.
10. get into the Q chamber of hydraulic rotary joint through screwed pipe joint (14) by the high-pressure and hydraulic oil of hydraulic power unit (17) output; Near the Q chamber, radially open several oil throughs and live spindle (6) center hole structure is logical; Radially the straight of oil through should be suitable with the drift diameter area of screwed pipe joint (14) through size and quantity for it; Or suitably amplify, to reduce the flow resistance of flow.
The beneficial effect of patent of the present invention:
1. the enforcement of patent of the present invention is regulated the wind wheel blade corner for vertical axis aerogenerator adopts hydraulic control mode, thereby improve wind-driven generator wind energy conversion efficiency possibility has been arranged.
2. hydraulic rotary joint is installed in speedup box lower velocity shaft underpart.This layout reduces the physical dimension of hydraulic rotary joint significantly, and the end falls in cost, and operating conditions is improved, and functional reliability improves.
3. the annular concentric cavity volume that utilizes speedup box lower velocity shaft (2) center hole and wind axis main shaft (1) center bore inner wall face and output long tube (4) outer wall to form constitutes the drainback passage of hydraulic-pressure control apparatus, can save a hydraulic rotary joint, reduces cost.
4. the live spindle of hydraulic rotary joint (6) adopts ball bearing (9) supporting, and sealing of two roads and combined labyrinth and carbon gland coil apparatus (12) strengthen the sealing effect of hydraulic rotary joint, further improve functional reliability.
5. adopt the design method of structure sealing, component exposed even in hydraulic oil is carried on the way, seal failure occurs, hydraulic fluid leak occurs among atmosphere without spin, all can not cause oil pollution to external world.
6. adopt the radial end face bond structure, can come driven rotary axle (6) rotation by speedup box lower velocity shaft (2), can realize that again hydraulic rotary joint assembles member separately, integral installation is given and is installed and maintenance brings greatest convenience.
Description of drawings:
Below in conjunction with accompanying drawing patent of the present invention is further specified:
Fig. 1 is a hydraulic oil for hydraulic control equipment of vertical axial wind driven generator transporting system structural drawing;
Fig. 2 is the combined type packing ring structure drawing of device;
Fig. 3 is radial end face bond structure figure;
Fig. 4 is the worm's eye view of Fig. 3.
Among the figure: 1. wind wheel main shaft; 11. semitight circle;
2. speedup box lower velocity shaft; 12.O RunddichtringO;
3. coupling; 13. oil return house steward;
4. output long tube; 14. screwed pipe joint;
5.O RunddichtringO; 15. end cap;
6. live spindle; 16. speedup box box cover;
7. radial end face key; 17. hydraulic power unit;
8. swivel joint housing; 18. screw;
9. ball bearing; 19. screw;
10. combined labyrinth and carbon gland coil apparatus;
Embodiment:
With reference to Fig. 1
1. hydraulic rotary joint is installed in the underpart of speedup box lower velocity shaft (2), and is fixed on the speedup box box cover (16) with flange.An output of the delivery outlet design long tube (4) of hydraulic rotary joint is transported to the hydraulic oil of hydraulic rotary joint output on the wind wheel rotation platform, and the feed flow pressure control device is used.This output long tube (4) has certain wall thickness, can bear the high pressure of hydraulic oil, and has enough length, can run through the center hole of speedup box lower velocity shaft (2) and the center hole of wind wheel main shaft (1).The center hole of speedup box lower velocity shaft (2) such as is at straight warp, and the center-hole diameter of wind wheel main shaft (1) is stepped shaft, little hole depth, and macropore is shallow, and pressure hydraulic fluid port P and little center hole are linked up, and oil return inlet T is linked up with big center hole.Two road O RunddichtringOs (5) are installed in output long tube (4) upper end portion, are embedded in the little center hole of wind wheel main shaft (1), guarantee sealing.The underpart of output long tube (4) is installed two road O RunddichtringOs (5) again, is embedded in the center hole of live spindle (4), guarantees sealing.
2. the first half of semitight ring (11) is equipped with two road O RunddichtringOs (12), is embedded in the big center hole of wind wheel main shaft (1), guarantees its sealing.The Lower Half of semitight ring (11) can freely be inserted in the center hole of speedup box lower velocity shaft (2), and leaves bigger gap, does not influence the installation between speedup box lower velocity shaft (2) and the wind wheel main shaft (1).
3. by the outer wall of output long tube (4) and the formed annular concentric cavity volume of internal face of speedup box lower velocity shaft (2) center bore inner wall face and wind wheel main shaft (1) center hole, constitute the drainback passage of hydraulic control device.The oil return that hydraulic-pressure control apparatus on the wind wheel rotation platform is discharged is collected to hydraulic fluid port T, flows into through drainback passage in the casing of speedup box, is entered oil return to the oil sump tank of hydraulic power unit (17) by oil return house steward (13) at last.
4. live spindle (6) is installed in the swivel joint housing (8); Go up installation two ball bearings (9) at live spindle (6); Be in the upper and lower end of swivel joint housing (8) respectively, two road combined labyrinth and carbon gland coil apparatus (10) are installed respectively in the both sides of two ball bearings (9).
5. screwed pipe joint (14) is installed on the swivel joint housing (8), delivers to hydraulic fluid port Q to the hydraulic oil of hydraulic power unit (17) output through screwed pipe joint (14).Have center hole in the middle of the live spindle (6), near hydraulic fluid port Q, radially have oil through and center hole and link up, the diameter of oil through and quantity should be suitable with the drift diameter area of screwed pipe joint (14).
6. the upper-end surface of swivel joint housing (8) is provided with flange; Be screwed on the box cover (16) at speedup box; Flange is set in the lower end surface of swivel joint housing (8) and end cap (15) matches, and is screwed, to guarantee the axial position of two ball bearings (9).
7. with reference to Fig. 2; Combined labyrinth and carbon gland coil apparatus (10) is made up of inside and outside two seal elements; Interior seal element is the O RunddichtringO; Processed by oil resistant rubber, the exterior seal ring element is a seal ring, has solid powder material mixing compacting wear-resistant and that self-lubricating property is good by the very little macromolecular material interpolation of friction factor and forms.
8. with reference to Fig. 3 and Fig. 4; The following end flange of output long tube (4) is with the lower end surface axial restraint of screw (18) with speedup box lower velocity shaft (2); Have two at a distance of 180 degree radial end face keyways in the end flange place down at output long tube (4); Radial end face key (7) is installed, and is fixed on the following end flange of output long tube (4) with screw (19).Also have two radial end face keyways in the upper-end surface of live spindle (6), cooperate with radial end face key (7) and realize that key is connected.So just, can realize speedup box lower velocity shaft (2) driven rotary axle (6) rotation, and allow hydraulic rotary joint to be assembled into the parts integral installation separately.This has brought greatest convenience for installation, inspection, the maintenance of hydraulic pressure swivel joint.
Claims (3)
1. the feedway of a hydraulic oil for hydraulic control equipment of vertical axial wind driven generator, it is characterized in that: hydraulic rotary joint is installed in the underpart of the speedup box lower velocity shaft (2) that links to each other with wind driven generator principal shaft (1); Hydraulic rotary joint and wind wheel rotation platform are connected with output long tube (4) up and down at a distance of several meters; Adopt output long tube (4) to run through the center hole of speedup box lower velocity shaft (2) center hole and wind wheel main shaft (1); Two road O RunddichtringOs (5) are all installed at two ends up and down at output long tube (4); Be embedded in respectively in the little center hole of wind wheel main shaft (1) in the center hole with the live spindle (6) of hydraulic rotary joint; All guarantee its sealing, constitute the high pressure oil transfer passage; Utilize the outer wall of output long tube (4) and the center bore inner wall face of wind wheel main shaft (1), the annular concentric cavity volume that speedup box lower velocity shaft (2) center bore inner wall face forms constitutes the drainback passage of hydraulic-pressure control apparatus; The first half of semitight ring (11) is equipped with two road O RunddichtringOs (12), is embedded in the big center hole of wind wheel main shaft (1), guarantees its sealing, and the Lower Half of its semitight ring (11) is contained in speedup box lower velocity shaft (2) center hole, and leaves bigger gap; The underpart of output long tube (4) is designed to flange arrangement, fixes with the screw (18) and the lower end surface of speedup box lower velocity shaft (2), accomplishes installing and fixing of output long tube (4); On the following end flange of output long tube (4), also design two radial end face keyways; At a distance of 180 degree; Radial end face key (7) is installed, and is fixed on the following end flange of output long tube (4), two radial end face keyways are also arranged in the upper end of live spindle (6) with screw (19); Match with radial end face key (7), realize that key connects; Just can be through this key Placement by the rotation of speedup box lower velocity shaft (2) driven rotary axle (6); Live spindle (6) is installed in the swivel joint housing (8), goes up at live spindle (6) two ball bearings (9) are installed, and is in the two ends up and down of swivel joint housing (8) respectively, play supporting role; In the both sides of two ball bearings (9) two road combined labyrinth and carbon gland coil apparatus (10) are installed respectively, are sealed.
2. the feedway of a kind of hydraulic oil for hydraulic control equipment of vertical axial wind driven generator as claimed in claim 1; It is characterized in that: the combined labyrinth and carbon gland coil apparatus (10) that is installed in live spindle (6) is made up of inside and outside two seal elements; Interior seal element is the O RunddichtringO; Processed by oil resistant rubber, outer sealing element is a seal ring, has solid powder material mixing compacting wear-resistant and that self-lubricating property is good by the very little macromolecular material interpolation of friction factor and forms.
3. the conveying technology of a kind of hydraulic oil for hydraulic control equipment of vertical axial wind driven generator as claimed in claim 1; It is characterized in that: hydraulic oil gets into the Q chamber of hydraulic rotary joint through screwed pipe joint (13); Near the Q chamber, radially open several oil throughs; Link up with the center hole of live spindle (6), radially the latus rectum of diameter and the quantity and the screwed pipe joint (13) of oil through is suitable for it..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100486199A CN101852176B (en) | 2009-03-31 | 2009-03-31 | Transportation technology of hydraulic oil for hydraulic control equipment of vertical axial wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100486199A CN101852176B (en) | 2009-03-31 | 2009-03-31 | Transportation technology of hydraulic oil for hydraulic control equipment of vertical axial wind driven generator |
Publications (2)
| Publication Number | Publication Date |
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| CN101852176A CN101852176A (en) | 2010-10-06 |
| CN101852176B true CN101852176B (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100486199A Expired - Fee Related CN101852176B (en) | 2009-03-31 | 2009-03-31 | Transportation technology of hydraulic oil for hydraulic control equipment of vertical axial wind driven generator |
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| CN (1) | CN101852176B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595923B (en) * | 2016-12-30 | 2022-03-01 | 中检西部检测有限公司 | Device and method for measuring output wind energy power of wind fire extinguisher |
| CN112761907B (en) * | 2021-02-02 | 2022-09-16 | 湘电风能有限公司 | Compact type generator set |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752439A (en) * | 2005-10-31 | 2006-03-29 | 朱汪逸 | Hydraulic vane change device for wind-driven generator |
| CN200996359Y (en) * | 2006-12-22 | 2007-12-26 | 刘旭东 | Louver windenergy generater of vertical axle wind speed |
-
2009
- 2009-03-31 CN CN2009100486199A patent/CN101852176B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752439A (en) * | 2005-10-31 | 2006-03-29 | 朱汪逸 | Hydraulic vane change device for wind-driven generator |
| CN200996359Y (en) * | 2006-12-22 | 2007-12-26 | 刘旭东 | Louver windenergy generater of vertical axle wind speed |
Non-Patent Citations (2)
| Title |
|---|
| JP昭61-212674A 1986.09.20 |
| JP特开2002-070719A 2002.03.08 |
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| CN101852176A (en) | 2010-10-06 |
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