CN113700587A - Detachable pump plate structure of water turbine runner - Google Patents
Detachable pump plate structure of water turbine runner Download PDFInfo
- Publication number
- CN113700587A CN113700587A CN202110965672.6A CN202110965672A CN113700587A CN 113700587 A CN113700587 A CN 113700587A CN 202110965672 A CN202110965672 A CN 202110965672A CN 113700587 A CN113700587 A CN 113700587A
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- China
- Prior art keywords
- comb teeth
- pump plate
- top cover
- runner
- broach
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 4
- 244000126211 Hericium coralloides Species 0.000 description 12
- 238000003466 welding Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/128—Mounting, demounting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention provides a detachable pump plate structure of a water turbine runner, which comprises a runner, first comb teeth, a pump plate cover, top cover comb teeth and a top cover, wherein the first comb teeth, the pump plate cover and the top cover comb teeth are arranged between the runner and the top cover, the first comb teeth are detachably connected with the runner, the pump plate is arranged on one side of the first comb teeth, which is far away from the runner, the pump plate cover is covered on one side of the pump plate, which is far away from the first comb teeth, and the top cover comb teeth and the first comb teeth are mutually meshed. The difficulty of installation and maintenance of the runner is obviously reduced under the condition that the runner is not damaged.
Description
Technical Field
The invention relates to the technical field of hydraulic generators, in particular to a detachable pump plate structure of a hydraulic turbine runner.
Background
The hydraulic generator is a hydraulic generator set which takes a hydraulic turbine as a prime mover to convert water energy into electric energy. When water flows through the water turbine, water energy is converted into mechanical energy, a rotating shaft of the water turbine drives a rotor of the generator, and the mechanical energy is converted into electric energy to be output. The hydraulic generator can be divided into a vertical type and a horizontal type according to the axial position. The large and medium-sized units are generally arranged in a vertical mode, and the horizontal mode is generally used for small units and through-flow units.
The pump plate setting of hydraulic generator is on the runner usually, and rotates along with the runner, and when mainly acting on the hydraulic turbine operation, rivers pass through the clearance between top cap and the runner, and wherein most rivers are stopped by the broach, have welded the pump plate simultaneously on the runner, and from most rivers of broach seepage through the top cap drain pipe row to sump pit, small part of remaining water is stopped when the clearance is sealed through the second after the pump leaf. However, since the pump plate is welded to the runner, the welding causes a certain damage to the runner, and the pump plate is complicated in structure, difficult to install, and low in interchangeability between components.
Disclosure of Invention
Aiming at the problems in the prior art, the first comb teeth, the pump plate and the pump plate cover are integrally formed, the pump plate, the first comb teeth and the pump plate cover can be assembled into a whole before installation, and then the pump plate, the first comb teeth and the pump plate cover are locked on the runner through screws, so that the field installation is facilitated. The difficulty of installation and maintenance of the runner is obviously reduced under the condition that the runner is not damaged.
In order to achieve the purpose, the invention adopts the following technical scheme:
a detachable pump plate structure of a water turbine runner comprises a runner, first comb teeth, a pump plate cover, top cover comb teeth and a top cover,
first broach, pump plate lid and top cap broach set up between runner and the top cap, first broach with detachable connection between the runner, the pump plate is installed first broach is kept away from on one side of runner, pump plate lid closes the pump plate is kept away from on one side of first broach, the top cap broach with intermeshing between the first broach.
In one embodiment, the first comb teeth comprise a linear part and a toothed part, the toothed part of the first comb teeth is detachably connected with the rotating wheel, the pump plate is installed on one side, away from the rotating wheel, of the linear part of the first comb teeth, the pump plate cover covers one side, away from the linear part of the first comb teeth, of the pump plate, and the toothed part of the top cover comb teeth and the toothed part of the first comb teeth are meshed with each other.
In one embodiment, the device further comprises a fixing screw, a mounting hole penetrating through the first comb tooth is formed in the tooth groove of the first comb tooth, a threaded hole is formed in the position, corresponding to the mounting hole in the first comb tooth, of the rotating wheel, and a threaded end of the fixing screw penetrates through the mounting hole in the first comb tooth to be in threaded connection with the threaded hole in the rotating wheel.
In one embodiment, a counter bore is arranged at one end, away from the rotating wheel, of the mounting hole in the first comb teeth, and the tail portion of the fixing screw is located in the counter bore.
In one embodiment, the center line of the counter bore is arranged in line with the center line of the mounting hole, and the depth of the counter bore is larger than the thickness of the tail part of the fixing screw.
In one embodiment, the first comb teeth, the pump plate and the pump plate cover are integrally formed.
In one embodiment, gaps are respectively arranged between the tooth tips of the first comb teeth and the tooth roots of the top cover comb teeth and between the tooth tips of the top cover comb teeth and the tooth roots of the first comb teeth.
In one embodiment, the size of the gap between the tooth tip of the first comb tooth and the tooth root of the top cover comb tooth is equal to the size of the gap between the tooth tip of the top cover comb tooth and the tooth root of the first comb tooth.
In one embodiment, a gap is formed between one side, away from the pump plate, of the pump plate cover and the top cover, and one side, away from the first comb teeth, of the top cover comb teeth abuts against the top cover.
In one embodiment, a connecting hole penetrating through the top cover is formed in the top cover, a water discharging pipe is arranged on one side, away from the top cover comb teeth, of the top cover, one end of the connecting hole is communicated with a gap between one side, away from the pump plate, of the pump plate cover and the top cover, and the other end of the connecting hole is communicated with the water discharging pipe.
Compared with the prior art, the detachable pump plate structure for the water turbine runner has the following advantages:
1. with first broach, pump plate and pump plate lid integrated into one piece: before the installation, earlier constitute an organic whole with first broach, pump plate and pump plate lid, avoid when the on-the-spot installation need assemble a plurality of parts simultaneously, the effectual installation quality that has improved has guaranteed the reliability of hydraulic generator operation.
2. First broach, pump plate and pump plate lid integrated into one piece, then fix it on the runner through set screw, avoided the harm that welding between pump plate and the runner brought for the runner, increased the reliability and the life of unit operation.
3. First broach, pump plate and pump plate lid adopt integrated into one piece's processing technology, have both guaranteed the sealed effect of pump plate, make integrated into one piece's pump plate structure can convenient to detach again, very big make things convenient for the maintenance operation in equipment later stage, have also increased the interchangeability between the part simultaneously.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and the like are used in the indicated orientations and positional relationships based on the orientation shown in the drawings for convenience in describing the invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
As shown in FIG. 1, for convenience of description, the "up", "down", "left", "right", "front" and "back" orientation references in the present invention are based on the orientation shown in FIG. 1;
a detachable pump plate structure of a water turbine runner comprises a runner 1, first comb teeth 2, a pump plate 3, a pump plate cover 4, top cover comb teeth 6 and a top cover 7,
Specifically, the first comb teeth 2 comprise a straight line part 21 and a tooth-shaped part 22, the tooth-shaped part 22 of the first comb teeth 2 is connected with the rotating wheel 1 in a detachable connection mode, the pump plate 3 is installed on the right side of the straight line part 21 of the comb teeth 2, the pump plate cover 4 covers the right side of the straight line part 21 of the pump plate 3 far away from the comb teeth 2, and the tooth-shaped part of the top cover comb teeth 6 is meshed with the tooth-shaped part 22 of the first comb teeth 2.
Preferably, still include set screw 5, be provided with the mounting hole that runs through first broach 2 in the tooth's socket of first broach 2, the position department that corresponds with the mounting hole on first broach 2 on runner 1 is provided with the screw hole, set screw 5's screw thread end passes the mounting hole on first broach 2 and the detachable connected mode between first broach 2 and the runner 1 of realization with the screw hole spiro union on runner 1, furthermore, set screw 5 is hexagon socket head cap screw, convenient to use person twists reverse set screw 5 in the narrow and small space like this of the tooth's socket of first broach 2, make the dismouting operation of first broach 2 more convenient.
In the embodiment, a counter bore is arranged at one end of the mounting hole on the first comb teeth 2, which is far away from the rotating wheel 1, and the tail part of the fixing screw 5 is positioned in the counter bore; further, the central line of the counter bore on the first broach 2 and the central line collineation setting of the mounting hole on the first broach 2, and the degree of depth of this counter bore is greater than the thickness of 5 afterbody of set screw, such structural design for set screw 5 screws up the back, and the counter bore can not be exposed to the terminal surface of its afterbody, makes the connection between first broach 2 and the set screw 5 more compact, also is favorable to guaranteeing the existence in clearance between the tooth point of top cap broach 6 and the tooth root of first broach 2 simultaneously.
In the embodiment, the first comb teeth 2, the pump plate 3 and the pump plate cover 4 are integrally formed, so that the first comb teeth 2, the pump plate 3 and the pump plate cover 4 are firstly integrated into a whole before the first comb teeth 2, the pump plate 3 and the pump plate cover 4 are installed, and the assembled first comb teeth 2, the pump plate 3 and the pump plate cover 4 are only required to be connected with the runner 1 together during installation, so that the situation that a plurality of parts are required to be assembled simultaneously during field installation is avoided, the installation quality is effectively improved, and the operation reliability of the hydraulic generator is ensured; secondly, first broach 2, pump plate 3 and pump plate lid 4 adopt integrated into one piece's processing technology, have both guaranteed the sealed effect of pump plate 3, make again by first broach 2, pump plate 3 and pump plate lid 4 integrated into one piece's pump plate structure can convenient to detach, very big has made things convenient for the maintenance operation in equipment later stage, has also increased the interchangeability between the part simultaneously.
In the present embodiment, gaps are respectively provided between the tooth tips of the first comb teeth 2 and the tooth roots of the top cover comb teeth 6 and between the tooth tips of the top cover comb teeth 6 and the tooth roots of the first comb teeth 2; furthermore, the size of a gap between the tooth tip of the first comb tooth 2 and the tooth root of the top cover comb tooth 6 is equal to the size of a gap between the tooth tip of the top cover comb tooth 6 and the tooth root of the first comb tooth 2;
a gap is formed between the right side of the pump plate cover 4 and the top cover 7, and the right side of the top cover comb teeth 6 is abutted to the top cover 7;
a connecting hole penetrating through the top cover 7 is formed in the top cover 7, a water drainage pipe 8 is arranged on the right side of the top cover 7, the left end of the connecting hole in the top cover 7 is communicated with a gap between the pump plate cover 4 and the top cover 7, and the right end of the connecting hole is communicated with the water drainage pipe 8;
through above-mentioned structural design, realized rivers through the clearance between top cap 7 and the runner 1, wherein most rivers are prevented by first broach 2, pump plate 3 and pump plate lid 4, and the most rivers of following first broach 2, pump plate 3 and the 4 seepage of pump plate lid are arranged to the sump pit through drain pipe 8, and small part of remaining water is prevented when the clearance is sealed through the second after the pump leaf.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A detachable pump plate structure of a water turbine runner is characterized by comprising a runner, first comb teeth, a pump plate cover, top cover comb teeth and a top cover,
first broach, pump plate lid and top cap broach set up between runner and the top cap, first broach with detachable connection between the runner, the pump plate is installed first broach is kept away from on one side of runner, pump plate lid closes the pump plate is kept away from on one side of first broach, the top cap broach with intermeshing between the first broach.
2. The detachable pump plate structure of a turbine runner according to claim 1, characterized in that the first comb teeth include a linear portion and a toothed portion, the toothed portion of the first comb teeth is detachably connected to the runner, the pump plate is mounted on a side of the linear portion of the first comb teeth, which is away from the runner, the pump plate cover covers a side of the linear portion of the pump plate, which is away from the first comb teeth, and the toothed portion of the top cover comb teeth and the toothed portion of the first comb teeth are engaged with each other.
3. The detachable pump plate structure of the water turbine runner according to claim 2, further comprising a fixing screw, wherein a mounting hole penetrating through the first comb teeth is formed in the tooth groove of the first comb teeth, a threaded hole is formed in the runner at a position corresponding to the mounting hole of the first comb teeth, and a threaded end of the fixing screw penetrates through the mounting hole of the first comb teeth and is in threaded connection with the threaded hole of the runner.
4. The detachable pump plate structure of the water turbine runner according to claim 3, wherein a counter bore is formed in one end of the mounting hole of the first comb teeth, which is far away from the runner, and a tail portion of the fixing screw is located in the counter bore.
5. The detachable pump plate structure of the turbine runner according to claim 4, wherein a center line of the counter bore is collinear with a center line of the mounting hole, and a depth of the counter bore is greater than a thickness of the tail portion of the fixing screw.
6. The detachable pump plate structure of the turbine runner according to any one of claims 1 to 5, wherein the first comb teeth, the pump plate and the pump plate cover are integrally formed.
7. The detachable pump plate structure of water turbine runner according to claim 6, characterized in that gaps are respectively provided between the tooth tips of the first comb teeth and the tooth roots of the top cover comb teeth and between the tooth tips of the top cover comb teeth and the tooth roots of the first comb teeth.
8. The detachable pump plate structure of water turbine runner according to claim 7, wherein the size of the gap between the tooth tip of the first comb teeth and the tooth root of the top cover comb teeth is equal to the size of the gap between the tooth tip of the top cover comb teeth and the tooth root of the first comb teeth.
9. The detachable pump plate structure of water turbine runner according to claim 8, characterized in that a gap is provided between the side of the pump plate cover away from the pump plate and the top cover, and the side of the top cover comb teeth away from the first comb teeth abuts against the top cover.
10. The detachable pump plate structure of water turbine runner according to claim 9, wherein the top cover is provided with a connecting hole penetrating through the top cover, one side of the top cover away from the comb teeth of the top cover is provided with a drain pipe, one end of the connecting hole is communicated with a gap between one side of the pump plate cover away from the pump plate and the top cover, and the other end is communicated with the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965672.6A CN113700587A (en) | 2021-08-23 | 2021-08-23 | Detachable pump plate structure of water turbine runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965672.6A CN113700587A (en) | 2021-08-23 | 2021-08-23 | Detachable pump plate structure of water turbine runner |
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| Publication Number | Publication Date |
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| CN113700587A true CN113700587A (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110965672.6A Pending CN113700587A (en) | 2021-08-23 | 2021-08-23 | Detachable pump plate structure of water turbine runner |
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| CN205225564U (en) * | 2015-11-16 | 2016-05-11 | 峨眉山建南水电设备制造有限公司 | Controllable formula hydraulic turbine runner decompression thrust sealing device |
| CN205225565U (en) * | 2015-11-16 | 2016-05-11 | 峨眉山建南水电设备制造有限公司 | Modular contactless hydraulic turbine shaft seal device |
| CN206555436U (en) * | 2017-03-10 | 2017-10-13 | 湖南云箭集团有限公司 | A kind of sealing device of mainshaft for horizontal water turbine |
-
2021
- 2021-08-23 CN CN202110965672.6A patent/CN113700587A/en active Pending
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| CN2142149Y (en) * | 1992-12-03 | 1993-09-15 | 四川电力科学试验研究所 | Helicoidal pump type mainshaft seal for water turbine |
| JPH0874726A (en) * | 1994-09-07 | 1996-03-19 | Toshiba Eng Co Ltd | Francis turbine |
| JP2003013837A (en) * | 2001-06-28 | 2003-01-15 | Mitsubishi Heavy Ind Ltd | Runner for pump hydraulic turbine |
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| CN201372882Y (en) * | 2008-12-08 | 2009-12-30 | 杭州力源发电设备有限公司 | Novel hydraulic turbine shaft seal assembly adopting 'non-contact seal plus rotary pump unit' |
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| CN202300796U (en) * | 2011-11-10 | 2012-07-04 | 浙江金轮机电实业有限公司 | Pump type pressure reducing mechanism of rotary wheel of water turbine |
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| CN204783422U (en) * | 2015-06-30 | 2015-11-18 | 杭州杭发发电设备有限公司 | Horizontal water turbine's pump plate structure |
| CN204961147U (en) * | 2015-09-11 | 2016-01-13 | 栾立刚 | Broach water seal structure of hydraulic turbine for cooling tower |
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