CN105849405B - The method of spiral case and arrangement spiral case for the hydraulic turbine - Google Patents
The method of spiral case and arrangement spiral case for the hydraulic turbine Download PDFInfo
- Publication number
- CN105849405B CN105849405B CN201480049195.7A CN201480049195A CN105849405B CN 105849405 B CN105849405 B CN 105849405B CN 201480049195 A CN201480049195 A CN 201480049195A CN 105849405 B CN105849405 B CN 105849405B
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- segment
- spiral
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
-
- 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
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/02—Casings
-
- 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
- F03B3/16—Stators
-
- 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
Abstract
A kind of spiral case for the hydraulic turbine is conceived, it include: a series of spiral segments, it limits a channel so that the liquid for entering shell to be directed to the runner in the hydraulic turbine, spiral segment extends at least partially about the runner and has the inner periphery for limiting an opening to receive runner, the cross-sectional area of the spiral segment is gradually smaller from the entrance spiral segment in spiral segment to the last one spiral segment in spiral segment, and each spiral segment includes not meeting circular cross section with the cross section in the gap of the register and spiral segment；One entrance segment, it limits a channel and flows into the spiral segment to receive liquid, wherein, the cross section of the entrance segment is circular, an and transition segment, it is by the spiral segment that the entrance segment is connected in the spiral segment and limits a channel will be directed to the spiral segment by the liquid of the entrance segment, and wherein at least part of cross section of transition segment along its length is non-circular.
Description
Background technique
The present invention relates to a kind of spiral case for turbine, in particular for the spiral case of the hydraulic turbine, such as francis turbine,
Kaplan turbine and pelton turbine.
Fig. 1 shows a kind of traditional francis turbine 10 comprising spiral case 12, fixed blade 14 annular series, lead
Flow annular series, runner 16 and the drainage tube 18 of blade 15.Spiral case 12 forms the closed channel for entering the hydraulic turbine 10 for water.Snail
The inner periphery 20 of shell 12 is unlimited the water for flowing to runner 16 from spiral case 12.It fixed blade 14 and is led when water enters runner 16
Flow the direction that blade 15 determines water flow.Water rotates runner 16 around the axis 19 of generally vertical axis.Rotation driving can
To be attached to the axis 22 of generator.It is converted into drainage tube 18 by the water of runner 16 from the rough round stream in spiral case 12
Rough spiral flow.The axis of the spiral flow and the axis 19 of runner are coaxial.
Fig. 1 shows traditional spiral case 12 that cross section is generally round.Non-circular portion corresponds to the inner circle of shell
The opening in week 20.Spiral case is usually the component around the segment that the axis of the runner is arranged.Each segment can be metal covering
Plate is shaped the wall in channel.Each segment may include one or more fixed blades 14.
As the segment of component is advanced around axis, the diameter of each segment is sequentially reduced.Therefore, pass through the stream of spiral case 12
Road has larger diameter (D1) in entrance segment 26.It is continuous to save as shell is around the excircle of guide vane 14 and runner 16
The diameter (see D2) of section is gradually reduced.Spiral case 12 is generally around 16 1 circumference of guide vane 15 and runner or close to a circle
Week.
Fig. 2 shows the conventional volutes 12 being located in the chamber 24 formed by the concrete wall in power station.Spiral case 12
In central cylindrical opening 31 receive guide vanes 15 and runner 16.The entrance segment 26 of spiral case 12 and the water inlet for arriving chamber 24
Mouth alignment.Entrance segment 26 usually has straight axis 28 and cross section is circular over the whole length.Entrance segment
26 inner sidewall is the tangent line 30 of the circumference of cylinder open 31.Each segment also can have straight axis, but each segment
Axis is not coaxial.On the contrary, the axis of each segment may be angled with the axis of preceding and subsequent segment.
The entrance segment 26 of spiral case 12 limits the first outer edge 33 of spiral case 12.From the first outer edge to the outer edge on opposite
35 distance (D3) is usually 30 feet (10 meters) or bigger.The width of chamber 24 and the size of length are suitable for receiving spiral case
12.Chamber 24 be usually biggish concrete structure, length and width can be 20 to 60 feet of height (8 to 20 meters) and 50 to
80 feet (12 to 18 meters).Chamber 24 must be built on the place in the power station that the hydraulic turbine will be run.Chamber 24 is built
It makes often expensive and is labor-intensive.
Summary of the invention
Cost needed for reducing installation francis turbine and hydraulic turbine chamber and labour are a long-term needs.Chamber
Size depend on spiral case overall size.The external dimensions (D4- Fig. 3) for reducing spiral case will allow the size of chamber to be reduced.?
The spiral case of the displosure can be applied to various types of hydraulic turbines, including francis turbine, Kaplan turbine, Pei Erdun water wheels
Machine and the oblique flow type hydraulic turbine.
The overall dimensions (D4) of spiral case can by the cross-sectional shape of the spiral segment of Shaped shell, be offset inward entrance
Segment and increases transition segment between entrance segment and spiral segment and reduce.It can be by towards water shown in Fig. 3
The rotation axis transverse shifting entrance of turbine deviates entrance segment.It can also be by relative to power station machine shown in Fig. 4
The axis of device rotates the hydraulic turbine effectively to deviate entrance segment.If the hydraulic turbine is rotated, entrance segment can be non-by making
Radial segment is kept to the attachment point rotation of other segments perpendicular to machine axis 73 around them.
The cross-sectional shape of spiral segment and transition segment is non-circular.The cross section of spiral segment and transition segment can
To be oval, parabola or hyperbola segment shape or other non-circular shapes with continuous tangent line.Continuous tangent line shows cross
Section is continuous bend.These cross-sectional shapes can have the width more narrower than the circular cross section in traditional spiral case
(perpendicular to the rotation axis of the hydraulic turbine) and bigger height (being parallel to rotation axis).The non-circular cross sections quilt of spiral segment
Configuration is to have the enough area for water needed for the hydraulic turbine.By the cross section of forming spiral segment, total ruler of spiral segment
Very little (D4) compared to all segments all there is the size (D3) of spiral case of automatic adjustment cross section can be reduced.
Transition segment is between the end of entrance segment and first spiral segment.Transition segment is formed for from entrance section
Section is moved to the channel of the water of spiral segment.The cross section of transition segment can be it is non-circular, such as ellipse, parabola
It is shape or hyperbola.Transition segment entrance segment can be integrated to from it from circular cross section taper to its combination
Non-circular cross sections at first spiral segment.
Conceive a kind of spiral case for the hydraulic turbine comprising: a series of spiral segments limit a channel with will be into
The liquid for entering shell is directed to runner in the hydraulic turbine, and spiral segment extends at least partly around the runner and has restriction
One opening is to receive the inner periphery of runner, and the cross-sectional area of the spiral segment is from the entrance spiral segment in spiral segment
It is gradually smaller to the last one spiral segment in spiral segment, wherein each spiral segment includes and the register
The cross section of gap and spiral segment does not meet circular cross section；One entrance segment limits a channel to receive liquid flow
Enter the spiral segment, wherein the cross section of the entrance segment is circular and a transition segment, by the entrance
Segment is connected to a spiral segment in the spiral segment and limits a channel with will be by the liquid of the entrance segment
It is directed to the spiral segment, wherein at least part of cross section of the transition segment section along its length is non-circular.
Machine can such as axis relative to power station machine and the rotation axis around runner bucket by rotating range be 5
It spends to 40 degree of angle.The axis of power station machine is located in a horizontal plane.It entrance segment can be towards the rotary shaft of the hydraulic turbine
Line laterally offset.The cross-sectional shape of spiral segment and transition segment can be oval, parabola or hyperbolic shape.
Conceive a kind of spiral case for the hydraulic turbine comprising: the component of spiral segment, the spiral segment are end-to-end
In conjunction with to limit a channel so that the water for entering spiral case to be directed to the runner in the hydraulic turbine, wherein the component of the spiral segment
Limit a series of inner opening of the blades and runner that are configured to receive the hydraulic turbine and each spiral segment in component
With the gap being aligned with the inner opening and there is non-circular cross-sectional shape；One entrance segment limits a channel
To receive the component that water flows into the spiral segment, wherein the cross section of whole length of the entrance segment along entrance segment
It is circular and a transition segment, the entrance segment is connected to the component of the spiral segment and limits a channel
The component of the spiral segment will be directed to by the water of the entrance segment, wherein the transition segment section is along transition segment
At least part of cross section of length is non-circular.
Detailed description of the invention
Fig. 1 is the side view for traditional francis turbine that part is illustrated in cross-section.
Fig. 2 is disposed upon the perspective view of the spiral case of the francis turbine in the chamber for the hydraulic turbine.
Fig. 3 is that have the transition for changing to non-circular cross sections from circular cross section along its length and deviating entrance segment
The diagrammatic top view of the spiral case of segment.
Fig. 4 is the spiral case of the rotation with the transition segment for changing to non-circular cross sections from circular cross section along its length
Diagrammatic top view.
Fig. 5 is the schematic end view of a spiral segment.
Specific embodiment
Fig. 3 is the diagrammatic top of the spiral case 32 between entrance segment 36 and spiral segment 37,38 with transition segment 34
Figure.The rotation axis 40 of entrance segment 36 towards the hydraulic turbine is laterally inward offset.The cross of spiral segment 37,38 and transition segment 34
Section is non-circular, for example, ellipse, it is parabola shaped or hyperbola.
The overall size (D4) of spiral case 32 smaller than the correspondence overall size of the conventional volute 12 replaced spiral case 32 5% can arrive
10%.The reduction of the overall size is by 41 entrance segment 36 of offset and to form spiral segment 37,38 and transition segment 34
Non-circular cross sections are realized.
The reduction of the overall size (D4) of spiral case 32 has the solid line for the spiral case for deviating entrance segment corresponding with display from display
Difference between the dotted line of the circumference of conventional volute this it appears that.The distance between dotted line and solid line provide spiral case size
On with respect to the exemplary representation totally reduced.
Entrance segment 36 has circular cross section over the whole length.The diameter of the circular cross section needs not be along
The length of entrance segment 36 remains unchanged.For example, entrance segment 36 can be it is cylindrical or can assemble along its length or
Extension.The circular cross section of entrance segment 36 is suitable for bearing through the extremely hydraulic of the water flow of entrance segment 36.Entrance segment 36
It can have straight axis 46 or can be curved.
The connection of entrance segment 36 to initial spiral segment 37 is realized by transition segment 34.Transition segment 34 provides
The smooth transition of aquaporin from entrance segment 36 to spiral segment 37.
Transition segment 34 includes the entrance area with circular cross section, is connected to entrance segment 36.Transition segment 34
The cross section of entrance be circular to match and be integrated to entrance segment 36.The outlet of transition segment 34, which has, is matched to beginning spiral shell
Revolve the cross-sectional shape of the entrance of segment 37.Transition segment 34 is usually non-circular in the cross-sectional shape that segment exports, example
As ellipse, it is parabola shaped or hyperbola.
Transition segment 34 can be by forming steel plate rolling at required shape.Alternatively, transition segment 34 can lead to
It crosses in conjunction with tubular segment short end to end and is formed.The transition segment 34 of forming is used to the entrance segment of lateral shift
Connection between 37 and initial spiral segment 38.Due to its lateral shift 41, entrance segment 36 enters with initial spiral segment 38
Mouth is misaligned.In traditional spiral case, entrance segment is aligned with initial spiral segment and the two has allows segment to be incorporated in
Similar cross-sectional shape together.
Spiral case 32 can be formed by assembling tubular portion end to end, each self-forming of tubular portion end to end
One spiral segment 38.Spiral segment 37,38 and transition segment 34 and entrance segment 36 can by rolling carbon steel plate come
It is formed.Each segment can individually transport and assemble in the chamber in power station.
The cross-sectional area of spiral segment 37,38 is gradually reduced in the direction by the water flow of spiral case 32.Spiral segment
37,38 cross-sectional shape can be, for example, ellipse, it is parabola shaped or hyperbolical line.The cross section of spiral segment
Including a gap 20, therefore without forming an occluded ellipse, parabola, hyperbola or other non-circular shapes.Spiral
The cross section of segment and transition segment be known as it is non-circular because the profile of cross section does not meet a circle.On the contrary, spiral
The profile of the cross section of segment and transition segment meets non-circular shape, such as oval, parabola or hyperbolic shape.
By the cross section of forming spiral segment 37,38, the rotation axis 40 of the outer circumferential of spiral case 32 towards the hydraulic turbine
Radially-inwardly deviate 43.It is (flat that the forming of spiral segment 37,38 can increase height compared with cross section is circular spiral segment
Row is in rotation axis 40).However, the height increase of spiral case 32 can be realized the reduction in spiral case overall size (from D3 by receiving
To D4).
Entrance segment 36 can have outer surface 52, be straight and the straight outside 54 with transition segment 34 is aligned, example
As coaxially.The outer surface of entrance segment 36, transition segment 34 and spiral segment 37,38 is spiral case 32 perpendicular to rotation axis
40 and extend through guide vane 56 intermediate cross-section plane on outmost surface.Since it deviates 41, entrance
The circular open 42 that the inner surface 58 of segment 36 is not formed with the inner periphery by spiral case 32 is tangent.
Transition segment 34 can increase compared with the wall thickness of traditional spiral case with the thickness of the wall of spiral segment 37,38.More
Thick wall may be subject to hydraulic and ensure that transition segment and spiral segment keep their expected non-circular transverse cross-section institutes
It needs.
Opening 42 in spiral case 32 receives the ring-shaped component of runner (Fig. 1) and guide vane 56.The angle of guide vane 56
It is adjusted to alter the flow direction into the water of runner bucket.Guide vane 56 can be adjusted by the axis rotation around them
It is whole.
The component of the ring-shaped component of fixed blade 62 and guide vane 56 is coaxial.Fixed blade 62 is across in spiral segment
The gap in opening 61 formed in the side wall of section 38.61 offer water of opening flows to 56 and of guide vane from spiral segment 37,38
The channel of runner.Fixed blade 62 also provides the support of structure for spiral segment 37,38.Fixed blade 62 can be aligned with flat
Row is in the flow direction for the water for flowing to guide vane 56 from spiral segment 37,38.
The end of last spiral segment 38 is connected to the side of transition segment 34 and selectively connected by one baffle 44
It is connected to entrance segment 36.Baffle 44 can be carbon steel plate, be shaped to meet the interior of transition segment 34 and entrance segment 36
Portion's circumference and end plate is provided for spiral segment 38.Baffle prevents water from flowing into transition segment or entrance section from last spiral segment
Section.
Fig. 4 is the diagrammatic top view of a spiral case 64.Spiral case can be by rotating a traditional hull shape (see dotted line)
Such as shell to be replaced is designed.During the design, axis of the shape of spiral case around the hydraulic turbine machine for shell
Line 73 rotates.Effective rotation of hull shape is, such as the angle 70 of five degree to 40 degree (5 ° to 40 °).Entrance segment 68
Rotation helps to reduce the overall size (D5) of spiral case 64.The rotation of transition segment 66 and spiral segment 72 and non-circular cross sections reduce
The overall size (D5) of spiral case 64.Overall size (D5) is the outer surface along the spiral case by the vertically extending line 74 of axis 73.
Entrance segment, transition segment and spiral segment can respectively be shaped by rolling respective carbon steel disc or steel plate.
Entrance segment 68 can have circular cross section.The cross section of transition segment 66 and spiral segment 72 can be completely non-circular
Or part non-circular, such as elliptical, parabolical or hyp cross-sectional shape.As shown in Figure 4, entrance section
The axis of section can be coaxial with the axis of transition segment.
As shown in Figure 4, being formed by spiral case by one spiral case of rotation can further shape to have an entrance section
Section, it is parallel with by the entrance segment of shell to be replaced.Such spiral case can have shape as shown in Figure 3.For
The transition segment of such a spiral case will be similar to transition segment 54 as shown in Figure 3.The axis of entrance segment can be relative to
The axis of transition segment as shown in Figure 3 tilts.
Fig. 5 is the schematic diagram for showing the end of spiral segment 82.Spiral segment 82 has the circumference for limiting water channel 86
Metal sidewall 84.Cross section along the side wall 84 of the axis 85 of segment be it is non-circular, as shown in the real parallel lines in Fig. 5.
The cross section can be, such as elliptical, parabolical or hyp segment shape.In circle shown in dotted lines in Figure 5
Cross section is in order to compared with the non-circular cross sections of segment.
The outer circumferential and the circle as shown in dotted line that reduction along the plane 88 by spiral segment 82 is side wall 84
The distance between shape 87.Horizontal plane 88 is by the span centre of fixed blade 62 and including power station machine axis 73.It is formed
All or most of spiral segment 82 in the bay assemblies of spiral case can have one or more fixed blades 62, cross over spiral shell
Revolve the gap 90 in the inner periphery 92 of segment 82.Gap 90, which provides water and flows through guide vane from water channel 86 and enter, to be turned
The channel of wheel.Fixed blade 62 can be supported by the annular flange 94 on the upper and lower part edge 96 in gap 90.Flange 94 is also
It can support to form the edge of the side wall of spiral segment 82 84 96.Flange 94 can be fixed to the chamber in power station.
The present invention is described although having been combined and being presently considered to most practical and preferred embodiment, it is to be understood that this
Invention is not limited to the disclosed embodiments, on the contrary, its to want covering each comprising in the spirit and scope of the appended claims
Kind modification and equivalent arrangements.
Claims (19)
1. a kind of spiral case for the hydraulic turbine comprising:
A series of spiral segments limit a channel so that the liquid for entering shell is directed to the runner in the hydraulic turbine, spiral segment
Section extends at least partly around the runner and has the inner periphery for limiting an opening to receive runner, the spiral segment
Cross-sectional area be gradually reduced from the entrance spiral segment in spiral segment to the last one spiral segment in spiral segment,
Wherein, each spiral segment includes not meeting rounded cross section with the cross section in the gap of the register and spiral segment
The circular cross section that do not meet in face, spiral segment has more narrower than the circular cross section of the spiral segment in conventional volute hang down
Directly in the width of the rotation axis of the hydraulic turbine and the bigger height for being parallel to the rotation axis；
One entrance segment limits a channel to receive liquid and flows into the spiral segment, wherein the entrance segment it is transversal
Face is circular, and
The entrance segment is connected to a spiral segment in the spiral segment and limits a channel by one transition segment
The spiral segment will be directed to by the liquid of the entrance segment, wherein the transition segment section along its length at least one
Partial cross section be it is non-circular, the non-circular cross section of the transition segment has than the rounded cross section in conventional volute
The width of the narrower rotation axis perpendicular to the hydraulic turbine in face and the bigger height for being parallel to the rotation axis.
2. spiral case according to claim 1, wherein axis of the axis of the entrance segment relative to the transition segment
It is inclined.
3. spiral case according to claim 2, wherein the axis of the entrance segment forms model relative to the axis of the hydraulic turbine
Enclose the angle for 5 degree to 40 degree.
4. spiral case according to claim 1, wherein the axis of the entrance segment and the axis of the transition segment are same
Axis.
5. spiral case according to claim 1, wherein the rotation axis of entrance segment towards the hydraulic turbine is laterally inclined
It moves.
6. spiral case according to claim 1, wherein the cross section of spiral segment is at least partly oval, parabola shaped
One of with hyperbola.
7. spiral case according to claim 1, wherein the cross section of the transition segment includes that height dimension compares width dimensions
Big cross section.
8. spiral case according to claim 1, wherein the cross section of the transition segment includes the neighbouring entrance segment
Circular cross section.
9. a kind of spiral case of the hydraulic turbine, comprising:
The component of spiral segment, the end-to-end combination in spiral segment is to limit a channel so that the water for entering spiral case is directed to water
Runner in turbine, wherein the component of the spiral segment limits a series of blades for being configured to receive the hydraulic turbine and turns
The inner opening of wheel and each spiral segment in component with the gap being aligned with the inner opening and has non-circular
The cross-sectional shape of shape, the non-circular cross-sectional shape of spiral segment have more horizontal than the circle of the spiral segment in conventional volute
The width of the narrower rotation axis perpendicular to the hydraulic turbine in section and the bigger height for being parallel to the rotation axis；
One entrance segment limits a channel to receive the component that water flows into the spiral segment, wherein entrance segment edge
The cross section of the whole length of entrance segment is circular, and
The entrance segment is connected to the component of the spiral segment and limits a channel will pass through institute by one transition segment
The water for stating entrance segment is directed to the component of the spiral segment, wherein the transition segment section along transition segment length at least
The cross section of a part be it is non-circular, the non-circular cross section of the transition segment has more horizontal than the circle in conventional volute
The width of the narrower rotation axis perpendicular to the hydraulic turbine in section and the bigger height for being parallel to the rotation axis.
10. spiral case according to claim 9, wherein spiral segment in the component have than in the component
Preceding spiral segment smaller diameter.
11. spiral case according to claim 9, wherein the axis of the entrance segment favours the axis of the transition segment
Line.
12. spiral case according to claim 11, wherein the axis of the entrance segment and the axis of the hydraulic turbine form range
For 5 degree to 40 degree of angle.
13. spiral case according to claim 9, wherein the axis of the entrance segment and the axis of the transition segment are
Coaxial.
14. spiral case according to claim 9, wherein the rotation axis of the entrance segment towards the hydraulic turbine is lateral
Offset.
15. spiral case according to claim 9, wherein the cross section of spiral segment is at least partly oval, parabola shaped
One of with hyperbola.
16. spiral case according to claim 9, wherein the cross section of the transition segment includes that height dimension compares broad-ruler
Very little big cross section.
17. spiral case according to claim 9, wherein the cross section of the transition segment includes the neighbouring entrance segment
Circular cross section.
18. spiral case according to claim 9, wherein each of multiple spiral segments are included in the gap of segment
In blade.
19. spiral case according to claim 9, wherein the component of the spiral segment is integrated to the entrance by a baffle
The side wall of segment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361873987P | 2013-09-05 | 2013-09-05 | |
| US61/873,987 | 2013-09-05 | ||
| PCT/CA2014/050741 WO2015031987A1 (en) | 2013-09-05 | 2014-08-07 | Spiral casing for a hydraulic turbine and method for arranging a spiral casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105849405A CN105849405A (en) | 2016-08-10 |
| CN105849405B true CN105849405B (en) | 2019-02-12 |
Family
ID=52627644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480049195.7A Expired - Fee Related CN105849405B (en) | 2013-09-05 | 2014-08-07 | The method of spiral case and arrangement spiral case for the hydraulic turbine |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN105849405B (en) |
| CA (1) | CA2922196A1 (en) |
| RU (1) | RU2668189C2 (en) |
| WO (1) | WO2015031987A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111454166B (en) * | 2019-12-30 | 2021-02-26 | 广东莱佛士制药技术有限公司 | Process for the preparation of (2S,3S) -3-amino-bicyclo [2.2.2] octane-2-carboxylate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5510005A (en) * | 1978-07-05 | 1980-01-24 | Hitachi Ltd | Casing for hydraulic machine |
| AT391167B (en) * | 1984-08-02 | 1990-08-27 | Voith Gmbh J M | FLUID MACHINE, LIKE WATER TURBINE, PUMP OR PUMP TURBINE |
| CN201228645Y (en) * | 2008-07-25 | 2009-04-29 | 南京星飞冷却设备有限公司 | Hydraulic cooling fan for highly effective energy-conserving cooling tower |
| CN202811169U (en) * | 2012-09-21 | 2013-03-20 | 刘昌建 | Low-wind-drag high-flux water turbine volute shell |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1285960B (en) * | 1962-05-22 | 1968-12-19 | Voith Gmbh J M | Inlet device for Kaplan and Francis turbines |
| CN101560940B (en) * | 2009-05-27 | 2010-04-21 | 南京星飞冷却设备有限公司 | Direct connection low-speed small-scale mixed-flow turbine applied in hydrodynamic energy-saving cooling tower |
-
2014
- 2014-08-07 CN CN201480049195.7A patent/CN105849405B/en not_active Expired - Fee Related
- 2014-08-07 RU RU2016112544A patent/RU2668189C2/en active
- 2014-08-07 WO PCT/CA2014/050741 patent/WO2015031987A1/en active Application Filing
- 2014-08-07 CA CA2922196A patent/CA2922196A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5510005A (en) * | 1978-07-05 | 1980-01-24 | Hitachi Ltd | Casing for hydraulic machine |
| AT391167B (en) * | 1984-08-02 | 1990-08-27 | Voith Gmbh J M | FLUID MACHINE, LIKE WATER TURBINE, PUMP OR PUMP TURBINE |
| CN201228645Y (en) * | 2008-07-25 | 2009-04-29 | 南京星飞冷却设备有限公司 | Hydraulic cooling fan for highly effective energy-conserving cooling tower |
| CN202811169U (en) * | 2012-09-21 | 2013-03-20 | 刘昌建 | Low-wind-drag high-flux water turbine volute shell |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2016112544A3 (en) | 2018-03-14 |
| RU2016112544A (en) | 2017-10-09 |
| CA2922196A1 (en) | 2015-03-12 |
| WO2015031987A1 (en) | 2015-03-12 |
| CN105849405A (en) | 2016-08-10 |
| RU2668189C2 (en) | 2018-09-26 |
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