CN220302190U - High-power hydraulic turbine first-stage impeller - Google Patents
High-power hydraulic turbine first-stage impeller Download PDFInfo
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- CN220302190U CN220302190U CN202321050900.8U CN202321050900U CN220302190U CN 220302190 U CN220302190 U CN 220302190U CN 202321050900 U CN202321050900 U CN 202321050900U CN 220302190 U CN220302190 U CN 220302190U
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- guide vane
- impeller
- turbine
- stage impeller
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- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005192 partition Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Hydraulic Turbines (AREA)
Abstract
The high-power hydraulic turbine first-stage impeller comprises a first-stage impeller, one end of the first-stage impeller is connected with a suction chamber, the other end of the first-stage impeller is connected with an extrusion chamber, the suction chamber is of a circular structure, the first-stage impeller comprises first-stage guide vanes, first-stage blade structures are assembled and installed on the first-stage guide vanes, a rotating hole is formed in the center of each first-stage blade structure, a turbine shaft is fixedly installed in each rotating hole, working media are sucked through the suction chamber, the sucked working media enter between the first-stage guide vanes and the first-stage blade structures, flow in turbine grooves formed between the rotating blades and guide vane separators, the working media flow in the turbine grooves under the action of the extrusion chamber to drive the whole first-stage impeller to rotate, the turbine shafts inserted in the first-stage impeller rotate, energy generated by the working media is converted into mechanical energy, the conversion efficiency of the processing energy to the mechanical energy can be increased, and the effect of improving the conversion power of the hydraulic turbine of the first-stage impeller is achieved.
Description
Technical Field
The utility model relates to the technical field of hydraulic turbine impellers, in particular to a high-power hydraulic turbine primary impeller.
Background
The hydraulic turbine is a machine for converting the energy stored in fluid working medium into mechanical energy, and is also called turbine, its working condition and working medium are different, so that its structural mode is various, but its basic working principle is similar, its main component is a rotating element impeller, and has blades uniformly arranged along the circumference, and the energy possessed by fluid is converted into kinetic energy when it is passed through spray pipe, and when it is passed through impeller, the fluid can impact blade to drive impeller to rotate so as to drive turbine shaft to rotate, so that the turbine using liquid as working medium is called hydraulic turbine.
In the operation of hydraulic turbine equipment, the impeller is mainly relied on for energy generation and recovery, the installation mode of the existing impeller and the fluency degree of the structure during rotation cause energy consumption, and the energy conversion efficiency is required to be improved.
Therefore, in order to solve the defects in the prior art, it is necessary to provide a high-power hydraulic turbine first-stage impeller to solve the defects in the prior art.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a high-power hydraulic turbine primary impeller, which is characterized in that a working medium is sucked through a suction chamber to provide suction attraction for the working medium, the sucked working medium enters between a primary guide vane and a primary vane structure and flows in a turbine groove formed between a rotating vane and a guide vane partition plate, the rotating vane and the guide vane partition plate are relatively arranged to enable a turbine groove to be arc-shaped, and the working medium drives the integral primary impeller to rotate when flowing in the turbine groove under the action of an extrusion chamber, so that a turbine shaft inserted in the primary impeller rotates, energy generated by the working medium is converted into mechanical energy, the conversion efficiency of the energy of the working medium to the mechanical energy can be increased, and the effect of improving the conversion power of the hydraulic turbine of the primary impeller is achieved.
The above object of the present utility model is achieved by the following means.
The high-power hydraulic turbine first-stage impeller comprises a first-stage impeller, wherein one end of the first-stage impeller is connected with a suction chamber, the other end of the first-stage impeller is connected with an extrusion chamber, the suction chamber is of a circular structure, the first-stage impeller comprises first-stage guide vanes, first-stage blade structures are assembled and installed on the first-stage guide vanes, a rotating hole is formed in the center of each first-stage blade structure, and a turbine shaft is fixedly installed in each rotating hole;
the first-stage blade structure comprises a first-stage rotating disc, a rotating hole is formed in the center of the first-stage rotating disc, blade mounting grooves are uniformly formed in the first-stage rotating disc, rotating blades are fixedly arranged in the blade mounting grooves, and turbine flow grooves are formed in intervals among the rotating blades;
the first-stage guide vane comprises guide vane plates, protruding guide vane separators are uniformly arranged around the guide vane plates, annular installation is carried out between the guide vane separators, an included angle between the guide vane separators is 40 degrees, and a guide vane platform is installed at the center of the guide vane separators.
Specifically, first-stage vane and first-stage blade structure externally mounted have first-stage impeller sleeve, and first-stage impeller sleeve is two half structures, installs fixed buckle on the first-stage impeller sleeve.
Specifically, the guide vane separator and the rotating blades are correspondingly arranged, the guide vane separator and the rotating blades are of streamline structures, and the arrangement included angles between the guide vane separator and the rotating blades are 40 degrees.
Specifically, the turbine shaft penetrates through a rotating hole in the center of the first-stage blade structure, and the top end of the turbine shaft is abutted to the guide vane platform.
According to the utility model, the working medium is sucked through the suction chamber, suction attraction is provided for the working medium, the sucked working medium enters between the first-stage guide vane and the first-stage vane structure, and flows in the turbine groove formed between the rotating vane and the guide vane partition plate.
Drawings
The utility model is further illustrated by the accompanying drawings, which are not to be construed as limiting the utility model in any way.
FIG. 1 is a perspective view of a first stage blade configuration of a high power hydraulic turbine first stage impeller of the present utility model.
FIG. 2 is a perspective view of a first stage vane of a high power hydraulic turbine first stage impeller of the present utility model.
FIG. 3 is a schematic view of the construction of a high power hydraulic turbine primary impeller of the present utility model.
From fig. 1 to 3, it includes:
1. a first stage impeller;
2. a suction chamber;
3. a first stage guide vane;
4. a first stage blade structure;
5. a rotation hole;
6. a turbine shaft;
7. an extrusion chamber;
8. a first-stage rotating disc;
9. a blade mounting groove;
10. rotating the blade;
11. a turbine flow tank;
12. a guide vane;
13. a guide vane separator;
14. a guide vane platform;
15. a first stage impeller casing;
16. and fixing the buckle.
Detailed Description
The utility model will be further described with reference to the following examples.
Example 1.
As shown in fig. 1-3, a high-power hydraulic turbine first-stage impeller comprises a first-stage impeller 1, one end of the first-stage impeller 1 is connected with a suction chamber 2, the other end of the first-stage impeller 1 is connected with an extrusion chamber 7, the suction chamber 2 is of a circular ring structure, the first-stage impeller 1 comprises a first-stage guide vane 3, a first-stage blade structure 4 is assembled and installed on the first-stage guide vane 3, a rotating hole 5 is formed in the center of the first-stage blade structure 4, and a turbine shaft 6 is fixedly installed inside the rotating hole 5.
When the hydraulic turbine is operated, working medium is sucked through the suction chamber 2 and suction force is provided for sucking the working medium to flow, the flowing working medium enters the first-stage impeller 1 and then is converted into mechanical energy through the diversion effect of the first-stage guide vane 3 and the first-stage blade structure 4, the working medium flows in the first-stage impeller 1 to drive the first-stage impeller 1 to rotate, and the rotation of the first-stage impeller 1 enables the turbine shaft 6 arranged in the rotating hole 5 inside the first-stage blade structure 4 to rotate, so that the conversion into the mechanical energy is realized.
The first-stage blade structure 4 comprises a first-stage rotating disc 8, a rotating hole 5 is formed in the center of the first-stage rotating disc 8, blade mounting grooves 9 are uniformly formed in the first-stage rotating disc 8, rotating blades 10 are fixedly arranged in the blade mounting grooves 9, and turbine flow grooves 11 are formed in the intervals between the rotating blades 10.
The first-stage rotating disc 8 installed in the first-stage blade structure 4 is fixedly provided with the rotating blades 10 through the uniformly arranged blade mounting grooves 9, the rotating blades 10 are integrally of a circular arc structure, the rotating blades have moving thickness and are integrally spirally twisted, turbine flow grooves 11 are arranged between the rotating blades at intervals, so that working media entering the first-stage blade structure 4 flow through the turbine flow grooves 11 with radians when flowing between the rotating blades 10, and kinetic energy is converted into mechanical energy by pushing the rotating blades 10 to rotate.
The first-stage guide vane 3 comprises guide vane plates 12, protruding guide vane separation plates 13 are uniformly arranged around the guide vane plates 12, annular installation is carried out between the guide vane separation plates 13, an included angle between the guide vane separation plates 13 is 40 degrees, and a guide vane platform 14 is installed at the center of the guide vane separation plates 13.
When the first-stage guide vane 3 operates, working medium flows into the guide vane plate 12, and as the first-stage guide vane 3 is in butt joint with the first-stage blade structure 4, the working medium flows in the guide vane plate 12 stably in a circulating way, a group of guide vane separators 13 are arranged every 40 degrees around the guide vane platform 14, the guide vane separators 13 divide the guide vane platform 14 into nine groups of areas for working medium flowing at intervals, various passages are provided for the working medium flowing, and the working medium energy is maximized to reduce the consumption of the working medium energy.
First-stage vane 3 and first-stage blade structure 4 externally mounted have first-stage impeller cover shell 15, and first-stage impeller cover shell 15 is two half structures, installs fixed buckle 16 on the first-stage impeller cover shell 15, and first-stage vane 3 and first-stage blade structure 4 are through externally mounted's first-stage impeller cover shell 15 butt joint installation, combine first-stage impeller cover shell 15 of two half structures through fixed buckle 16, make first-stage impeller cover shell 15 with first-stage vane 3 and first-stage blade structure 4 the same angle fixed mounting.
The guide vane separator 13 and the rotating blade 10 are correspondingly arranged, the guide vane separator 13 and the rotating blade 10 are of streamline structures, and the arrangement included angles between the guide vane separator 13 and the rotating blade 10 are 40 degrees.
After the first-stage guide vane 3 and the first-stage blade structure 4 are installed together, as the arrangement included angle between the guide vane separator 13 and the rotating blade 10 is 40 degrees, the guide vane separator 13 and the rotating blade 10 can be well matched after being installed, and the guide vane separator 13 and the rotating blade 10 are correspondingly installed to form a streamline internal passage for working medium flowing, so that working medium flowing in the first-stage impeller 1 is more convenient, energy consumption is reduced, and mechanical energy conversion efficiency is improved.
The turbine shaft 6 penetrates through the rotating hole 5 in the center of the first-stage blade structure 4, the top end of the turbine shaft 6 is abutted to the guide vane platform 14, the guide vane platform 14 can bear and fix the turbine shaft 6 to rotate, and mechanical energy transmission is provided for the integral hydraulic turbine when the turbine shaft 6 fixed in the rotating hole 5 rotates.
The working medium is sucked through the suction chamber 2, suction attraction force is provided for the working medium, the sucked working medium enters between the first-stage guide vane 3 and the first-stage blade structure 4, the turbine groove formed between the rotary vane 10 and the guide vane partition 13 flows, the turbine groove is arc-shaped due to the relative installation between the rotary vane 10 and the guide vane partition 13, the working medium drives the whole first-stage impeller 1 to rotate when flowing in the turbine groove under the action of the extrusion chamber 7, the turbine shaft 6 inserted in the first-stage impeller 1 rotates, energy generated by the working medium is converted into mechanical energy, the conversion efficiency from the processing energy to the mechanical energy can be increased, and the effect of improving the conversion power of the hydraulic turbine of the first-stage impeller 1 is achieved.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (4)
1. A high-power hydraulic turbine first-stage impeller is characterized in that: the turbine comprises a first-stage impeller, wherein one end of the first-stage impeller is connected with a suction chamber, the other end of the first-stage impeller is connected with an extrusion chamber, the suction chamber is of a circular ring structure, the first-stage impeller comprises first-stage guide vanes, the first-stage guide vanes are provided with first-stage blade structures in a combined mode, a rotating hole is formed in the center of each first-stage blade structure, and a turbine shaft is fixedly arranged in each rotating hole;
the first-stage blade structure comprises a first-stage rotating disc, the center of the first-stage rotating disc is provided with a rotating hole, blade mounting grooves are uniformly formed in the first-stage rotating disc, rotating blades are fixedly arranged in the blade mounting grooves, and turbine flow grooves are formed between the rotating blades at intervals;
the first-stage guide vane comprises guide vane plates, protruding guide vane separators are uniformly arranged around the guide vane plates, annular installation is carried out between the guide vane separators, an included angle between the guide vane separators is 40 degrees, and a guide vane platform is installed at the center of the guide vane separators.
2. A high power hydraulic turbine primary impeller according to claim 1, wherein: the first-stage guide vane and the first-stage blade structure are externally provided with a first-stage impeller casing, the first-stage impeller casing is of a two-half structure, and a fixing buckle is arranged on the first-stage impeller casing.
3. A high power hydraulic turbine primary impeller according to claim 1, wherein: the guide vane separator and the rotating blades are correspondingly arranged, the guide vane separator and the rotating blades are of streamline structures, and the arrangement included angles between the guide vane separator and the rotating blades are 40 degrees.
4. A high power hydraulic turbine primary impeller according to claim 1, wherein: the turbine shaft penetrates through the rotating hole in the center of the first-stage blade structure, and the top end of the turbine shaft is abutted to the guide vane platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321050900.8U CN220302190U (en) | 2023-05-05 | 2023-05-05 | High-power hydraulic turbine first-stage impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321050900.8U CN220302190U (en) | 2023-05-05 | 2023-05-05 | High-power hydraulic turbine first-stage impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220302190U true CN220302190U (en) | 2024-01-05 |
Family
ID=89374325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321050900.8U Active CN220302190U (en) | 2023-05-05 | 2023-05-05 | High-power hydraulic turbine first-stage impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220302190U (en) |
-
2023
- 2023-05-05 CN CN202321050900.8U patent/CN220302190U/en active Active
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