CN117889029A - Water turbine top cover and water turbine - Google Patents
Water turbine top cover and water turbine Download PDFInfo
- Publication number
- CN117889029A CN117889029A CN202410295230.9A CN202410295230A CN117889029A CN 117889029 A CN117889029 A CN 117889029A CN 202410295230 A CN202410295230 A CN 202410295230A CN 117889029 A CN117889029 A CN 117889029A
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- plate
- ring plate
- annular plate
- rib
- top cover
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000007787 solid Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Classifications
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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
- Y02E10/20—Hydro energy
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- Hydraulic Turbines (AREA)
Abstract
The invention provides a water turbine top cover and a water turbine, wherein the water turbine top cover comprises: the outer top cover comprises a first upper annular plate, a first lower annular plate and a first rib plate, wherein the first upper annular plate and the first lower annular plate are oppositely arranged, and the opposite ends of the first rib plate are respectively connected with the first upper annular plate and the first lower annular plate; the inner top cover is nested with the outer top cover, the inner top cover comprises a second upper annular plate, a second lower annular plate and a second rib plate, the second upper annular plate and the second lower annular plate are oppositely arranged, two opposite ends of the second rib plate are respectively connected with the second upper annular plate and the second lower annular plate, the outer edge of the second upper annular plate is connected with the inner edge of the first upper annular plate, and the outer edge of the second lower annular plate is connected with the inner edge of the first lower annular plate. The invention can effectively strengthen the structural rigidity of the top cover and ensure that the whole structure is more stable by adopting the assembly structure of the nested arrangement of the outer top cover and the inner top cover.
Description
Technical Field
The invention relates to the technical field of water turbines, in particular to a water turbine top cover and a water turbine.
Background
The water pump turbine is a power machine for converting the energy of water flow into rotary mechanical energy, and the top cover is used as one of core fixing components of the water pump turbine unit, so that the double functions of bearing and overcurrent are achieved in the whole water pump turbine unit. The strength, rigidity and safe reliability of the top cover have a crucial influence on the stable operation of the whole unit.
The top cover body of the existing water pump water turbine is assembled in a combined mode after being manufactured in a radial split mode, however, the top cover structure has the problems of weak overall rigidity, complex pipeline structure, weak vibration resistance and the like, and meanwhile, abnormal opening phenomenon often occurs on the split handle joint surface, so that the overall structure of the top cover is damaged.
Disclosure of Invention
The embodiment of the invention provides a water turbine top cover and a water turbine, which can solve the technical problem that the overall strength of the water turbine top cover structure is weak.
In a first aspect, embodiments of the present invention provide a turbine head comprising:
The outer top cover comprises a first upper annular plate, a first lower annular plate and a first rib plate, wherein the first upper annular plate and the first lower annular plate are oppositely arranged, and the opposite ends of the first rib plate are respectively connected with the first upper annular plate and the first lower annular plate;
the inner top cover is nested with the outer top cover, the inner top cover comprises a second upper annular plate, a second lower annular plate and a second rib plate, the second upper annular plate and the second lower annular plate are oppositely arranged, two opposite ends of the second rib plate are respectively connected with the second upper annular plate and the second lower annular plate, the outer edge of the second upper annular plate is connected with the inner edge of the first upper annular plate, and the outer edge of the second lower annular plate is connected with the inner edge of the first lower annular plate.
In the embodiment of the invention, the structural rigidity of the top cover can be effectively enhanced by adopting the assembly structure of the nested arrangement of the outer top cover and the inner top cover, so that the whole structure is more stable. The first rib plate can be effectively connected with the first upper annular plate and the first lower annular plate, so that the stability of the outer top cover is enhanced, and the second rib plate can be effectively connected with the second upper annular plate and the second lower annular plate, so that the stability of the inner top cover is enhanced.
In an embodiment, the first upper ring plate and the first lower ring plate each comprise at least two split structures; and/or
The second upper annular plate and the second lower annular plate are of an integrated structure.
In the embodiment of the invention, the outer top cover adopts a split structure, so that the installation of the outer top cover and the maintenance of the inner top cover can be facilitated. The inner top cover adopts an integrated structure, has better rigidity and simpler structure, is convenient to manufacture and install, and is more beneficial to the reasonable arrangement of adjacent components (such as a control ring, an internal pipeline, a manhole and the like).
In an embodiment, the first upper ring plate and the first lower ring plate are coaxially arranged, the first rib plates are arranged along the radial direction of the first upper ring plate, and a plurality of first rib plates are uniformly arranged along the circumferential direction of the first upper ring plate; and/or
The second upper annular plate and the second lower annular plate are coaxially arranged, the second rib plates are arranged along the radial direction of the second upper annular plate, and the second rib plates are uniformly arranged in a plurality of circumferential directions of the second upper annular plate.
In the embodiment of the invention, the first upper annular plate and the first lower annular plate are coaxially arranged, so that the overall symmetry of the outer top cover can be improved, and the stability of the overall structure is improved. The first rib plate is arranged along the radial direction of the first upper annular plate, and a plurality of rib plates are uniformly arranged along the circumferential direction of the first upper annular plate, so that the structural stability of the outer top cover can be improved. The second upper annular plate and the second lower annular plate are coaxially arranged, so that the overall symmetry of the inner top cover can be improved, and the stability of the overall structure is improved. The second rib plate is arranged along the radial direction of the second upper annular plate, and a plurality of second rib plates are uniformly arranged along the circumferential direction of the second upper annular plate, so that the structural stability of the inner top cover can be improved.
In an embodiment, the first upper ring plate, the first lower ring plate, the second upper ring plate and the second lower ring plate are coaxially arranged, and a plurality of first rib plates and a plurality of second rib plates are staggered along the circumferential direction of the first upper ring plate.
In the embodiment of the invention, the first upper annular plate, the first lower annular plate, the second upper annular plate and the second lower annular plate are coaxially arranged, so that the structural symmetry of the whole top cover can be improved, and the stability of the whole structure is improved. The first rib plate and the second rib plate are arranged alternately along the circumferential direction of the first upper annular plate, so that the structural stability of the whole top cover can be further improved.
In an embodiment, the second upper ring plate and the second lower ring plate are coaxially arranged, the inner edges of the second upper ring plate and the second lower ring plate are respectively provided with a first fixing plate and a second fixing plate, and two ends of one side of the second rib plate, which is close to the axis of the second upper ring plate, are respectively connected with the first fixing plate and the second fixing plate.
In the embodiment of the invention, the first fixing plate and the second fixing plate can respectively connect the two ends of the second rib plate with the inner edges of the second upper ring plate and the second lower ring plate, so that the structural stability of the inner top cover is improved.
In an embodiment, the second upper ring plate and the second lower ring plate are coaxially arranged, and a side of the second rib plate, which is close to the axis of the second upper ring plate, comprises an inward concave arc structure.
In the embodiment of the invention, the inward concave arc structure is arranged on one side of the second rib plate, which is close to the axis of the second upper ring plate, so that the access of an maintainer on the inner side of the inner top cover during maintenance can be facilitated.
In an embodiment, a water vapor channel is disposed in the first rib plate, and the water vapor channel penetrates through two opposite sides of the first rib plate along the radial direction of the first upper ring plate.
In the embodiment of the invention, the water-gas channel is hidden in the first rib plate, so that the water-gas channel is fixed in the first rib plate, the water-gas channel can be stabilized, the internal pipeline arrangement is optimized, the pipeline structure is simplified, the operation reliability of the high-pressure pipeline can be effectively improved, the conventional steel pipe welding pipeline is prevented from being accidentally broken due to vibration, the malignant accident of a flooding plant is further caused, and the maintenance work of a power plant can be lightened.
In one embodiment, the thickness of the first rib plate along the circumferential direction of the first upper ring plate is more than or equal to 400mm; and/or
The internal diameter of the water-gas channel is 130-170 mm.
In the embodiment of the invention, the first rib plate is thick and heavy by controlling the thickness of the first rib plate along the circumferential direction of the first upper ring plate, so that the structural stability of the outer top cover can be enhanced, the vibration resistance and noise reduction performance of the outer top cover are improved, and the abnormal opening phenomenon of the split handle joint surface is eliminated. Through the thickness of the first rib plate along the circumference of the first upper annular plate and the inner diameter of the water vapor channel, the water vapor channel can be effectively fixed in the first rib plate, and meanwhile, the outer top cover is ensured to have enough structural strength.
In one embodiment, the outer edge of the second upper ring plate is lapped on the inner edge of the first upper ring plate and fixedly connected with the first upper ring plate through a screw; and/or
The outer edge of the second lower annular plate is lapped on the inner edge of the first lower annular plate and is fixedly connected with the first lower annular plate through a screw.
In the embodiment of the invention, the outer edge of the second upper ring plate is lapped on the inner edge of the first upper ring plate and fixedly connected with the inner edge of the first lower ring plate through the screw rod, and the outer edge of the second lower ring plate is lapped on the inner edge of the first lower ring plate and fixedly connected with the inner ring plate through the screw rod, so that the inner top cover can be effectively fixed on the outer top cover and the stable connection of the inner top cover and the outer top cover can be realized.
In an embodiment, a seal is provided where the outer edge of the second lower ring plate overlaps the inner edge of the first lower ring plate.
In the embodiment of the invention, the surfaces of the second lower annular plate and the first lower annular plate are overflow surfaces, high-pressure water flows through the overflow surfaces, and the sealing performance of the joint of the second lower annular plate and the first lower annular plate can be improved through the sealing piece, so that the water is sealed, and the water is prevented from entering the inner cavity of the top cover.
In one embodiment, the outer peripheral surface of the outer top cover is provided with a solid single flange structure.
In the embodiment of the invention, the flange rigidity can be enhanced by optimizing the double flange structure on the outer peripheral surface of the outer top cover to a solid single flange structure under the condition of having the same thickness as the double flange structure.
In a second aspect, embodiments of the present invention provide a hydraulic turbine comprising a hydraulic turbine head as described above.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a turbine head provided in an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an outer top cover (including a single flange configuration) provided by an embodiment of the present invention;
Fig. 3 is a schematic perspective view of an inline header provided by an embodiment of the present invention.
Reference numerals: an outer top cover-10; a first upper ring plate-11; a first lower annular plate-12; a first rib-13; a water-air channel-131; an inner top cover-20; a second upper ring plate-21; a second lower ring plate-22; a second rib-23; an arc-shaped structure-231; a first fixing plate-24; a second fixing plate-25; single flange construction-30.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the invention. In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
In a first aspect, referring to fig. 1 to 3, an embodiment of the present application provides a top cover of a water turbine, including:
an outer top cover 10 comprising a first upper ring plate 11, a first lower ring plate 12 and a first rib plate 13, wherein the first upper ring plate 11 and the first lower ring plate 12 are oppositely arranged, and opposite ends of the first rib plate 13 are respectively connected with the first upper ring plate 11 and the first lower ring plate 12;
The inner top cover 20 is nested with the outer top cover 10, the inner top cover 20 comprises a second upper ring plate 21, a second lower ring plate 22 and a second rib plate 23, the second upper ring plate 21 and the second lower ring plate 22 are oppositely arranged, opposite ends of the second rib plate 23 are respectively connected with the second upper ring plate 21 and the second lower ring plate 22, the outer edge of the second upper ring plate 21 is connected with the inner edge of the first upper ring plate 11, and the outer edge of the second lower ring plate 22 is connected with the inner edge of the first lower ring plate 12.
It will be appreciated that the dimensions of the first upper ring plate 11 and the first lower ring plate 12 may be the same or different. The first upper ring plate 11 and the first lower ring plate 12 may be coaxial or not coaxial. The second upper ring plate 21 and the second lower ring plate 22 may be the same or different in size. The second upper ring plate 21 and the second lower ring plate 22 may be coaxial or not coaxial. The outer edge of the first upper ring plate 11 and the inner edge of the first upper ring plate 11 may be connected in direct contact, or may be connected by other connectors. When the outer edge of the first upper ring plate 11 is in direct contact connection with the inner edge of the first upper ring plate 11, the outer edge size of the first upper ring plate 11 needs to be matched with the inner edge size of the first upper ring plate 11. The outer edge of the second upper ring plate 21 and the inner edge of the second upper ring plate 21 may be connected in direct contact, or may be connected by other connectors. When the outer edge of the second upper ring plate 21 is in direct contact connection with the inner edge of the second upper ring plate 21, the outer edge dimension of the second upper ring plate 21 needs to be matched with the inner edge dimension of the second upper ring plate 21. The opposite ends of the first rib 13 may be connected to the first upper ring plate 11 and the first lower ring plate 12 by welding or may be integrally formed. The opposite ends of the second rib plate 23 may be connected to the second upper ring plate 21 and the second lower ring plate 22 by welding or may be integrally formed.
In an embodiment, the first upper ring plate 11 and the first lower ring plate 12 each comprise at least two split structures; and/or
The second upper ring plate 21 and the second lower ring plate 22 are of an integral structure.
It will be appreciated that the number of split structures of the first upper ring plate 11 and the first lower ring plate 12 may be the same or different. The split structure of the single first upper ring plate 11 and the first lower ring plate 12 and the first rib plates 13 in the split structure can adopt an integral molding process, so that the stability of the single split structure can be increased. The number of split structures of the first upper ring plate 11 and the first lower ring plate 12 is the same and the split positions correspond, so that the overall structural symmetry and stability of the outer top cover 10 can be enhanced.
In an embodiment, the first upper ring plate 11 and the first lower ring plate 12 include the same number of split structures, and the split positions of the first upper ring plate 11 and the first lower ring plate 12 are the same.
It will be appreciated that the first upper ring plate 11 and the first lower ring plate 12 are separated at the same position, which is convenient for processing, improves the symmetry of the components, the stability of the overall structure, and shortens the manufacturing period.
In an embodiment, the first upper ring plate 11 and the first lower ring plate 12 each comprise two symmetrical split structures, and the split positions of the first upper ring plate 11 and the first lower ring plate 12 are the same.
It can be understood that the first upper ring plate 11 and the first lower ring plate 12 are separated into two separate bodies along the same symmetry axis, so that a great amount of welding work and auxiliary consumption materials such as steel plate forming, splice welding and assembly welding, weld seam hydrogen elimination treatment, stress relief heat treatment, weld seam flaw detection and the like in the factory manufacturing process can be saved, the internal quality of the parts can be improved, and the manufacturing period can be shortened.
In an embodiment, the first upper ring plate 11 and the first lower ring plate 12 are coaxially disposed, the first rib plates 13 are disposed along a radial direction of the first upper ring plate 11, and the first rib plates 13 are uniformly disposed in a plurality along a circumferential direction of the first upper ring plate 11; and/or
The second upper ring plate 21 and the second lower ring plate 22 are coaxially arranged, the second rib plates 23 are arranged along the radial direction of the second upper ring plate 21, and the second rib plates 23 are uniformly arranged in a plurality along the circumferential direction of the second upper ring plate 21.
It will be appreciated that the first rib 13 is disposed along the radial direction of the first upper ring plate 11, which means that the length direction of the first rib 13 is the same as the radial direction of the first upper ring plate 11, so that the connection stability of the first rib 13 to the first upper ring plate 11 and the first lower ring plate 12 can be improved. The second rib plate 23 is disposed along the radial direction of the second upper ring plate 21, which means that the length direction of the second rib plate 23 is the same as the radial direction of the second upper ring plate 21, so that the connection stability of the second rib plate 23 to the second upper ring plate 21 and the second lower ring plate 22 can be improved. The number and the pitch of the first ribs 13 in the circumferential direction may be set as needed. The number and the pitch of the second ribs 23 in the circumferential direction may be set as needed.
In one embodiment, the first upper ring plate 11, the first lower ring plate 12, the second upper ring plate 21 and the second lower ring plate 22 are coaxially disposed, and the plurality of first ribs 13 and the plurality of second ribs 23 are staggered along the circumferential direction of the first upper ring plate 11.
It is to be understood that the staggered pitch of the first rib 13 and the second rib 23 in the circumferential direction may be set as desired.
In an embodiment, the second upper ring plate 21 and the second lower ring plate 22 are coaxially disposed, the inner edges of the second upper ring plate 21 and the second lower ring plate 22 are respectively provided with a first fixing plate 24 and a second fixing plate 25, and two ends of one side of the second rib plate 23, which is close to the axis of the second upper ring plate 21, are respectively connected with the first fixing plate 24 and the second fixing plate 25.
It will be appreciated that the first and second fixing plates 24 and 25 may be annular plates disposed along the inner edges of the second upper and lower ring plates 21 and 22, or may be a plurality of plates disposed at intervals along the inner edges of the second upper and lower ring plates 21 and 22. When the first fixing plate 24 and the second fixing plate 25 are annular plates arranged along the inner edges of the second upper ring plate 21 and the second lower ring plate 22, the effect of connecting the second rib plate 23 with the second upper ring plate 21 and the second lower ring plate 22 is better, and the stability of the inner top cover 20 is stronger.
In an embodiment, the second upper ring plate 21 and the second lower ring plate 22 are coaxially disposed, and the side of the second rib 23 near the axis of the second upper ring plate 21 includes an inward concave arc structure 231.
It will be appreciated that the curvature and height of the concave arcuate structure 231 may be set as desired.
In an embodiment, the first rib 13 is provided with a water vapor channel 131, and the water vapor channel 131 penetrates through two opposite sides of the first rib 13 along the radial direction of the first upper ring plate 11.
It will be appreciated that the moisture channel 131 in the first rib 13 is part of the entire moisture channel 131. When the number of the first ribs 13 is plural, the moisture passages 131 may be provided in all of the first ribs 13, or the moisture passages 131 may be provided in part of the first ribs 13. The extending direction of the water vapor channel 131 in the first rib 13 may be parallel to the radial direction of the first upper ring plate 11, or may have an included angle with the radial direction of the first upper ring plate 11 along the radial direction of the first upper ring plate 11.
A metal pipe may be provided in the moisture passage 131 in the first rib 13, thereby enhancing the cavitation and abrasion resistance of the moisture passage 131 in the first rib 13.
In one embodiment, the thickness of the first rib 13 along the circumferential direction of the first upper ring plate 11 is equal to or greater than 400mm; and/or
The inner diameter of the water-gas channel 131 is 130-170 mm.
It can be appreciated that when the water vapor channel 131 is disposed in the middle portion of the first rib 13 along the circumferential direction of the first upper ring plate 11, the fixing effect of the first rib 13 on the water vapor channel 131 is better.
In one embodiment, the outer edge of the second upper ring plate 21 is overlapped on the inner edge of the first upper ring plate 11 and fixedly connected by a screw; and/or
The outer edge of the second lower ring plate 22 is overlapped on the inner edge of the first lower ring plate 12 and fixedly connected by a screw.
It will be appreciated that the outer edge of the second upper ring plate 21 overlaps the inner edge of the first upper ring plate 11, and that the overlapping of the second upper ring plate 21 and the first upper ring plate 11 can be achieved by providing a groove at the inner edge of the first upper ring plate 11, providing a protrusion on the outer edge of the second upper ring plate 21 that matches the groove, and providing a groove and protrusion. The outer edge of the second lower ring plate 22 is lapped on the inner edge of the first lower ring plate 12, or a groove is arranged at the inner edge of the first lower ring plate 12, a protrusion matched with the groove is arranged at the outer edge of the second lower ring plate 22, and the lapping of the second lower ring plate 22 and the first lower ring plate 12 is realized through the groove and the protrusion.
In one embodiment, a seal is provided where the outer edge of the second lower ring plate 22 overlaps the inner edge of the first lower ring plate 12.
It will be appreciated that there may be a gap where the outer edge of the second lower ring plate 22 overlaps the inner edge of the first lower ring plate 12 where a sealing packing, seal ring or the like may be provided as a seal.
In one embodiment, the outer peripheral surface of the outer top cover 10 is provided with a solid single flange structure 30.
It will be appreciated that a solid single flange structure 30 may be provided at the upper, middle and lower portions of the outer peripheral surface of the outer top cover 10, as desired.
In one embodiment, the single flange structure 30 is connected to the outer circumferential surface of the first lower ring plate 12 and a side of the first rib 13 near the outer circumferential surface of the first lower ring plate 12.
It will be appreciated that by connecting the single flange structure 30 to the first lower ring plate 12 and the first rib plate 13, the overall structure of the outer cap can be made more stable.
In a second aspect, embodiments of the present invention provide a hydraulic turbine comprising a hydraulic turbine head as described above.
The foregoing has outlined rather broadly the more detailed description of embodiments of the invention, wherein the principles and embodiments of the invention are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.
Claims (12)
1. A water turbine head cover, comprising:
The outer top cover comprises a first upper annular plate, a first lower annular plate and a first rib plate, wherein the first upper annular plate and the first lower annular plate are oppositely arranged, and the opposite ends of the first rib plate are respectively connected with the first upper annular plate and the first lower annular plate;
the inner top cover is nested with the outer top cover, the inner top cover comprises a second upper annular plate, a second lower annular plate and a second rib plate, the second upper annular plate and the second lower annular plate are oppositely arranged, two opposite ends of the second rib plate are respectively connected with the second upper annular plate and the second lower annular plate, the outer edge of the second upper annular plate is connected with the inner edge of the first upper annular plate, and the outer edge of the second lower annular plate is connected with the inner edge of the first lower annular plate.
2. The turbine roof of claim 1 wherein said first upper ring plate and said first lower ring plate each comprise at least two split structures; and/or
The second upper annular plate and the second lower annular plate are of an integrated structure.
3. The turbine roof according to claim 1, wherein the first upper ring plate and the first lower ring plate are coaxially disposed, the first rib plates are disposed along a radial direction of the first upper ring plate, and the first rib plates are uniformly disposed in plurality along a circumferential direction of the first upper ring plate; and/or
The second upper annular plate and the second lower annular plate are coaxially arranged, the second rib plates are arranged along the radial direction of the second upper annular plate, and the second rib plates are uniformly arranged in a plurality of circumferential directions of the second upper annular plate.
4. The turbine top cover of claim 3, wherein said first upper ring plate, said first lower ring plate, said second upper ring plate and said second lower ring plate are coaxially disposed, and a plurality of said first ribs and a plurality of said second ribs are staggered along a circumferential direction of said first upper ring plate.
5. The water turbine top cover according to claim 1, wherein the second upper ring plate and the second lower ring plate are coaxially arranged, first fixing plates and second fixing plates are respectively arranged at inner edges of the second upper ring plate and the second lower ring plate, and two ends of one side, close to an axis of the second upper ring plate, of the second rib plate are respectively connected with the first fixing plates and the second fixing plates.
6. The turbine roof of claim 1 wherein said second upper ring plate and said second lower ring plate are coaxially disposed, and wherein a side of said second rib adjacent said axis of said second upper ring plate includes an inwardly concave arcuate configuration.
7. The turbine roof of claim 1 wherein moisture channels are disposed within the first rib and extend radially through opposite sides of the first rib.
8. The turbine roof according to claim 7, wherein the thickness of the first rib along the circumferential direction of the first upper ring plate is equal to or more than 400mm; and/or
The internal diameter of the water-gas channel is 130-170 mm.
9. The turbine roof of claim 1 wherein the outer edge of the second upper ring plate overlaps the inner edge of the first upper ring plate and is fixedly connected by a screw; and/or
The outer edge of the second lower annular plate is lapped on the inner edge of the first lower annular plate and is fixedly connected with the first lower annular plate through a screw.
10. The turbine top cover of claim 9 wherein a seal is provided where the outer edge of the second lower ring plate overlaps the inner edge of the first lower ring plate.
11. The turbine roof of claim 1 wherein the outer roof has a solid single flange structure disposed on its outer periphery.
12. A hydraulic turbine comprising a hydraulic turbine head according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410295230.9A CN117889029B (en) | 2024-03-15 | 2024-03-15 | Water turbine top cover and water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410295230.9A CN117889029B (en) | 2024-03-15 | 2024-03-15 | Water turbine top cover and water turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117889029A true CN117889029A (en) | 2024-04-16 |
| CN117889029B CN117889029B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410295230.9A Active CN117889029B (en) | 2024-03-15 | 2024-03-15 | Water turbine top cover and water turbine |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB959142A (en) * | 1961-07-05 | 1964-05-27 | Creusot Forges Ateliers | Improvements in or relating to axial flow hydraulic turbines |
| CN2410451Y (en) * | 2000-01-27 | 2000-12-13 | 黄照荣 | Natural ventilator with reverse V type rib ring |
| KR100881214B1 (en) * | 2008-08-14 | 2009-02-05 | (주)덕성산업기계 | Water sealing module of hydraulic turbine |
| JP3172781U (en) * | 2011-08-11 | 2012-01-12 | 関越技研株式会社 | Watermill equipment |
| US20140271174A1 (en) * | 2013-03-14 | 2014-09-18 | Roger L. Bottomfield | Turbine Cap for Turbo-Molecular Pump |
| CN104612883A (en) * | 2015-01-26 | 2015-05-13 | 东方电气集团东方电机有限公司 | Water turbine head cover structure, water turbine cylindrical valve arrangement structure and water turbine |
| CN204553051U (en) * | 2015-04-16 | 2015-08-12 | 广东梅雁吉祥水电股份有限公司 | Turbine seating ring structure |
| CN208493543U (en) * | 2018-04-13 | 2019-02-15 | 苏州中新动力科技股份有限公司 | A kind of power demister |
| WO2019206004A1 (en) * | 2018-04-24 | 2019-10-31 | 东方电气集团东方电机有限公司 | Seat ring of reaction water turbine |
| CN210033700U (en) * | 2019-05-24 | 2020-02-07 | 重庆水轮机厂有限责任公司 | Combined top cover structure of water turbine |
| CN110985781A (en) * | 2019-12-05 | 2020-04-10 | 东方电气集团东方电机有限公司 | Water pump and turbine top cover high-pressure pipeline connecting structure |
| CN215186164U (en) * | 2020-10-27 | 2021-12-14 | 无锡市新友金属制品有限公司 | Outer end cover of aluminum motor shell |
| WO2022151468A1 (en) * | 2021-01-18 | 2022-07-21 | 深圳广蓝电力有限公司 | Hydro turbine and hydroelectric generator |
| CN217712792U (en) * | 2022-04-19 | 2022-11-01 | 东方电气集团东方电机有限公司 | Hydraulic turbine and pump turbine seat ring |
| CN219549019U (en) * | 2023-02-20 | 2023-08-18 | 国网新源控股有限公司白山抽水蓄能电站 | Top cover of water pump turbine set |
-
2024
- 2024-03-15 CN CN202410295230.9A patent/CN117889029B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB959142A (en) * | 1961-07-05 | 1964-05-27 | Creusot Forges Ateliers | Improvements in or relating to axial flow hydraulic turbines |
| CN2410451Y (en) * | 2000-01-27 | 2000-12-13 | 黄照荣 | Natural ventilator with reverse V type rib ring |
| KR100881214B1 (en) * | 2008-08-14 | 2009-02-05 | (주)덕성산업기계 | Water sealing module of hydraulic turbine |
| JP3172781U (en) * | 2011-08-11 | 2012-01-12 | 関越技研株式会社 | Watermill equipment |
| US20140271174A1 (en) * | 2013-03-14 | 2014-09-18 | Roger L. Bottomfield | Turbine Cap for Turbo-Molecular Pump |
| CN104612883A (en) * | 2015-01-26 | 2015-05-13 | 东方电气集团东方电机有限公司 | Water turbine head cover structure, water turbine cylindrical valve arrangement structure and water turbine |
| CN204553051U (en) * | 2015-04-16 | 2015-08-12 | 广东梅雁吉祥水电股份有限公司 | Turbine seating ring structure |
| CN208493543U (en) * | 2018-04-13 | 2019-02-15 | 苏州中新动力科技股份有限公司 | A kind of power demister |
| WO2019206004A1 (en) * | 2018-04-24 | 2019-10-31 | 东方电气集团东方电机有限公司 | Seat ring of reaction water turbine |
| CN210033700U (en) * | 2019-05-24 | 2020-02-07 | 重庆水轮机厂有限责任公司 | Combined top cover structure of water turbine |
| CN110985781A (en) * | 2019-12-05 | 2020-04-10 | 东方电气集团东方电机有限公司 | Water pump and turbine top cover high-pressure pipeline connecting structure |
| CN215186164U (en) * | 2020-10-27 | 2021-12-14 | 无锡市新友金属制品有限公司 | Outer end cover of aluminum motor shell |
| WO2022151468A1 (en) * | 2021-01-18 | 2022-07-21 | 深圳广蓝电力有限公司 | Hydro turbine and hydroelectric generator |
| CN217712792U (en) * | 2022-04-19 | 2022-11-01 | 东方电气集团东方电机有限公司 | Hydraulic turbine and pump turbine seat ring |
| CN219549019U (en) * | 2023-02-20 | 2023-08-18 | 国网新源控股有限公司白山抽水蓄能电站 | Top cover of water pump turbine set |
Non-Patent Citations (1)
| Title |
|---|
| 李居洪;谢守斌;李金明;: "大岗山水电站水轮机座环焊接及变形控制", 人民长江, no. 22, 28 November 2012 (2012-11-28) * |
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| CN117889029B (en) | 2024-05-24 |
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