CN114542353A - High-strength through-flow turbine - Google Patents
High-strength through-flow turbine Download PDFInfo
- Publication number
- CN114542353A CN114542353A CN202210043807.8A CN202210043807A CN114542353A CN 114542353 A CN114542353 A CN 114542353A CN 202210043807 A CN202210043807 A CN 202210043807A CN 114542353 A CN114542353 A CN 114542353A
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- Prior art keywords
- runner
- runner chamber
- chamber
- reinforcing block
- block
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 50
- 238000012423 maintenance Methods 0.000 claims description 26
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 10
- 238000010248 power generation Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002787 reinforcement Effects 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
-
- 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
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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
- 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
- F03B11/04—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator for diminishing cavitation or vibration, e.g. balancing
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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
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- 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
- F03B3/121—Blades, their form or construction
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses a high-strength through-flow turbine, which comprises a mounting cavity and a runner chamber arranged in the mounting cavity and respectively connected with upstream water flow and downstream water flow, wherein a bulb body is arranged in the runner chamber, a runner is arranged at one end, close to the downstream water flow, of the bulb body, and the runner chamber is fixedly connected with the mounting cavity through a concrete supporting block. The invention can well support the runner chamber, improve the stability of the runner chamber, is beneficial to reducing or even eliminating the vibration phenomenon of the runner chamber, and improves the strength and the service life of the runner chamber.
Description
Technical Field
The invention relates to the technical field of fluid machinery and energy engineering equipment, in particular to a high-strength through-flow turbine.
Background
At present, clean energy such as wind power generation, solar power generation and hydroelectric power generation is being developed vigorously to achieve the purposes of low carbon and environmental protection. In the prior art, clean energy is mainly hydroelectric power generation, and the tubular turbine can be applied to a low-head radial power station in a large area because the tubular turbine is adaptable to large water head amplitude, a flow channel is straight and smooth, the hydraulic performance is good, and the unit weighting efficiency is high. The through-flow turbine is limited by the structural characteristics, installation and the like of the through-flow turbine, people usually design and manufacture a large arrangement cavity firstly, then a water distributor and a runner chamber of the through-flow turbine are arranged in the arrangement cavity, at the moment, the water distributor of the through-flow turbine is connected with the arrangement cavity at the upstream end of the runner chamber so as to be convenient for assembling the runner chamber and the like, and therefore the water distributor and the runner chamber are of a large cantilever structure.
Disclosure of Invention
The invention aims to provide a high-strength through-flow turbine, which can well support a runner chamber, improve the stability of the runner chamber, be beneficial to reducing or even eliminating the vibration phenomenon of the runner chamber, improve the strength of the runner chamber and prolong the service life of the runner chamber.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-strength through-flow turbine comprises a placement cavity and a runner chamber which is arranged in the placement cavity and is respectively connected with upstream water flow and downstream water flow, wherein a bulb body is arranged in the runner chamber, a runner is arranged at one end, close to the downstream water flow, of the bulb body, and the runner chamber is fixedly connected with the placement cavity through a concrete supporting block.
As a through-flow turbine, the operating principle is as follows: the runner chamber and the water distributor are arranged in the placement cavity, the bulb body comprising the runner is arranged in the runner chamber, the runner at the tail end of the bulb body is driven to rotate when the upstream water flow passes through the bulb body, and the runner drives the rotor in the bulb body to rotate so as to generate electricity.
It can be understood that, because of the huge external dimensions of the runner chamber, the dimensions, especially the length dimension, of the runner chamber have large machining errors, and in addition, because of the heavy weight of the runner chamber, the hoisting is difficult. When the runner chamber is lifted into the installation cavity for installation, one end of the runner chamber close to the upstream water flow is generally fixedly connected with the installation cavity, and one end of the runner chamber close to the downstream water flow is in a cantilever shape, that is, the runner chamber is 'soaked' in the installation cavity.
The concrete supporting block is creatively arranged in the mounting cavity, namely, when the runner chamber is hoisted into the mounting cavity for mounting, one end of the runner chamber close to the upstream water flow is fixedly connected with the mounting cavity, so that the runner chamber can be basically positioned and fixed in the mounting cavity, then the concrete is filled in a gap between the mounting cavity and the runner chamber, and the concrete supporting block is formed; on the other hand, the installation of the runner chamber in the arrangement cavity is facilitated, and the difficulty in installation caused by the dimension error of the runner chamber is avoided.
Preferably, one end of the runner chamber is an upstream end connected with the upstream water flow, the other end of the runner chamber is a downstream end connected with the downstream water flow, the upstream end of the runner chamber is connected with the placement cavity, and at least the downstream end of the runner chamber is provided with the concrete supporting block.
As mentioned above, the upstream end of the runner chamber is connected with the installation cavity, and the concrete supporting block is arranged at least at the downstream end of the runner chamber, so that the runner chamber forms upstream and downstream two-end support, namely, the existing runner chamber installation structure has a cantilever beam structure changed into a simple beam structure, thereby obviously increasing the rigidity and the strength of the runner chamber and reducing the vibration.
Preferably, the concrete support block extends from an upstream end to a downstream end of the runner chamber.
In the scheme, the concrete supporting block extends from the upstream end of the runner chamber to the downstream end of the runner chamber, so that the integral support can be formed on the runner chamber in the axial direction, the rigidity and the strength of the runner chamber are further improved, and the vibration of the runner chamber during the running of the turbine is effectively reduced or even eliminated.
Preferably, a water flow channel allowing water swimming water to pass through and flow through the runner is arranged on the concrete supporting block, the water flow channel comprises a maintenance duct which is vertically arranged at the lower end, close to the lower end of the bulb body, of the concrete supporting block and corresponds to the position of the runner, a reinforcing structure is arranged between the interior of the maintenance duct and the bulb body, the reinforcing structure comprises a transverse reinforcing block and a lower vertical reinforcing block, the transverse reinforcing block is connected with the outer side of the bulb body, the lower vertical reinforcing block is connected with the transverse reinforcing block and the inner side of the maintenance duct, and therefore the reinforcing structure is in a T shape.
The concrete supporting block is provided with a water flow channel which allows water swimming water to pass through and flow through the runner, namely, water exists in the accommodating cavity, the runner chamber is 'soaked' in the water, and the buoyancy of the water can effectively eliminate the gravity of the runner chamber. That is, the buoyancy of the water provides considerable support to the rotor chamber.
However, the bulb provided in the runner chamber requires routine maintenance after the turbine has been operated for a certain period of time, and maintenance is required in the event of a failure. At this time, the maintenance personnel usually need to "drill" into the bulb body for operation, and the runner chamber and the mounting cavity are filled with water, which causes difficulty in maintenance. Generally, the water in the runner chamber and the installation cavity needs to be discharged firstly, and then workers can enter the runner chamber and the bulb body to carry out operation and maintenance, so that the maintenance time can be prolonged, and the maintenance cost is increased.
According to the invention, the maintenance duct is arranged at the lower end of the concrete supporting block close to the bulb body, and the T-shaped reinforcing structure is arranged between the maintenance duct and the bulb body, so that on one hand, the runner chamber can be effectively supported in all directions, namely up, down, left and right, and on the other hand, an operator can enter the runner chamber and the bulb body through the transverse reinforcing block. That is, the lateral reinforcement blocks at this time function as an escalator.
Preferably, the upper side of the runner chamber is provided with an upper reinforcing block corresponding to the lower vertical reinforcing block, two sides of the upper reinforcing block are respectively connected with the transverse reinforcing blocks on two sides of the bulb body, and a maintenance channel is arranged at the joint of the reinforcing block and the transverse reinforcing blocks.
Go up the boss, vertical boss and horizontal boss down can form the omnidirectional support to the tail end of the bulb body, and operating personnel accessible horizontal boss walks to maintenance passageway department to it is internal to get into the bulb.
Preferably, the upper reinforcing block has an isosceles trapezoid shape.
It is known that the upper reinforcing block contributes to the strength and rigidity of the bulb, but increases the weight of the end of the bulb accordingly, increasing its outward bending. The isosceles trapezoid-shaped upper reinforcing block is beneficial to reducing the thickness and the weight of the upper reinforcing block as much as possible, and then the strength and the rigidity of the tail end of the bulb body in the vertical direction are increased.
Therefore, the invention has the following beneficial effects: the runner chamber can be well supported, the stability of the runner chamber is improved, the vibration phenomenon of the runner chamber is reduced and even eliminated, and the strength and the service life of the runner chamber are improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a sectional view taken along the direction B in fig. 1.
Fig. 3 is a sectional view taken along the direction a in fig. 1.
In the figure: 1. the maintenance culvert is characterized by comprising a cavity 2, a runner chamber 21, a bulb body 211, a runner 4, a concrete supporting block 41, a transverse reinforcing block 42, a lower vertical reinforcing block 43, an upper reinforcing block 44 and a maintenance culvert.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
As shown in fig. 1 and 2, a high-strength through-flow turbine, as a prior art, includes a runner chamber 2 having a bulb 21 inside, and a placement cavity 1 for placing the runner chamber, one end of the runner chamber is an upstream end connected to an upstream water flow, and the other end is a downstream end connected to a downstream water flow, so that the upstream water flow passes through the bulb and drives a runner 211 at the tail end of the bulb to rotate, and then drives a rotor in the bulb to rotate to generate electricity. Particularly, a concrete supporting block 4 for supporting the runner chamber is arranged in the mounting cavity, the concrete supporting block can form a strong rigid support for the runner chamber, the cantilever structure of the original runner chamber is thoroughly changed, the rigidity of the runner chamber is obviously improved, and therefore the vibration phenomenon of the runner chamber during operation can be reduced or even eliminated, and the service life is correspondingly prolonged.
Preferably, the upstream end of the runner chamber is connected with the placing cavity, and at least the downstream end of the runner chamber is provided with the concrete supporting block, so that the runner chamber forms upstream and downstream two-end support to thoroughly change the supporting structure of the runner chamber, further increase the rigidity of the runner chamber and reduce the vibration.
Furthermore, the concrete supporting block is arranged around the runner chamber, so that the concrete supporting block forms a hoop structure outside the runner chamber, the strength and the rigidity of the runner chamber can be effectively improved, and the runner chamber is prevented from vibrating. In addition, the concrete supporting block extends from the upstream end of the runner chamber to the downstream end of the runner chamber, so that the integral support can be formed for the runner chamber, the strength of the concrete supporting block is further improved, and the vibration of the concrete supporting block is effectively reduced.
Furthermore, as shown in fig. 3, a vertical maintenance duct 44 may be provided at the position of the concrete support block corresponding to the runner of the bulb, so as to facilitate the subsequent renewal and maintenance of the runner chamber, the bulb, and other devices and equipment. In addition, a transverse reinforcing block 41 connecting both sides of the maintenance duct and a lower vertical reinforcing block 42 vertically disposed at a lower side of the transverse reinforcing block are provided in the maintenance duct, so that the concrete support structure is T-shaped. That is, the lateral reinforcing blocks at the left and right sides are arranged in a line, so that the wheel house can be effectively supported in the left and right direction and the strength can be increased.
It will be appreciated that the chamber has a significant flow of water within it during operation, and the weight of the water flow will also act on the chamber, causing the downstream end of the chamber to hang obliquely downwards. At this time, the lower vertical reinforcing block arranged at the lower side of the runner chamber can form powerful support for the lower side of the runner chamber, so that the runner chamber is effectively supported in the up-down direction and the strength is increased.
For this purpose, we can also set up the upper reinforcing block 43 on the upper side of the runner house, the both sides of said upper reinforcing block are connected with the lateral reinforcing blocks on the both sides of the runner house respectively, thus make the concrete supporting shoe set up around the runner house, can promote the scene rigidity and intensity of the runner house notably, correspondingly, we can reduce the wall thickness of the runner house, in order to reduce the weight and manufacturing cost of the runner house. Particularly, a maintenance channel can be arranged at the joint of the reinforcing block and the transverse reinforcing block, so that the rotating wheel and the like at the tail end of the bulb body in the rotating wheel chamber can be maintained at the later stage.
Preferably, the upper reinforcing block can be arranged in an isosceles trapezoid shape, so that the thickness and the weight of the upper reinforcing block are reduced as much as possible on the basis of ensuring that the upper reinforcing block has enough strength, and the load of the lower vertical reinforcing block is reduced.
Claims (6)
1. A high-strength through-flow turbine comprises a placement cavity and a runner chamber which is arranged in the placement cavity and is respectively connected with upstream water flow and downstream water flow, wherein a bulb body is arranged in the runner chamber, and a runner is arranged at one end, close to the downstream water flow, of the bulb body.
2. A high intensity flow turbine as claimed in claim 1, wherein one end of the runner housing is an upstream end connected to the upstream water flow, the other end is a downstream end connected to the downstream water flow, the upstream end of the runner housing is connected to the housing cavity, and the concrete support block is provided at least at the downstream end of the runner housing.
3. The high intensity flow turbine of claim 1 wherein the concrete support block extends from an upstream end to a downstream end of the runner housing.
4. A high intensity flow turbine as claimed in claim 1, wherein the concrete support block is provided with a water passage for allowing water to flow through the runner, the water passage comprises a maintenance duct vertically disposed at a downstream end of the concrete support block near the bulb corresponding to the position of the runner, and a reinforcing structure is disposed between the maintenance duct and the bulb, the reinforcing structure comprises a transverse reinforcing block connecting an inner side of the maintenance duct and an outer side of the bulb, and a lower vertical reinforcing block connecting the transverse reinforcing block and an inner side of the maintenance duct, so that the reinforcing structure is T-shaped.
5. The high-intensity through-flow turbine as claimed in claim 4, wherein an upper reinforcing block is further provided at a position corresponding to the lower vertical reinforcing block at the upper side of the runner chamber, both sides of the upper reinforcing block are respectively connected to the lateral reinforcing blocks at both sides of the bulb body, and a maintenance passage is provided at a connection portion of the reinforcing block and the lateral reinforcing block.
6. The high intensity flow turbine of claim 5 wherein said upper reinforcing block is in the shape of an isosceles trapezoid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021108284834 | 2021-07-22 | ||
| CN202110828483.4A CN113530739A (en) | 2021-07-22 | 2021-07-22 | Through-flow turbine with concrete embedded in runner chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114542353A true CN114542353A (en) | 2022-05-27 |
Family
ID=78120354
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110828483.4A Pending CN113530739A (en) | 2021-07-22 | 2021-07-22 | Through-flow turbine with concrete embedded in runner chamber |
| CN202210043807.8A Pending CN114542353A (en) | 2021-07-22 | 2022-01-14 | High-strength through-flow turbine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110828483.4A Pending CN113530739A (en) | 2021-07-22 | 2021-07-22 | Through-flow turbine with concrete embedded in runner chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN113530739A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB798618A (en) * | 1955-11-30 | 1958-07-23 | Creusot Forges Ateliers | Low-head vertical-shaft hydro electric turbine unit |
| JPH1030543A (en) * | 1996-07-16 | 1998-02-03 | Tohoku Electric Power Co Inc | Valve type turbine generator, disassembly method thereof and guide vane gap adjustment method |
| CN201031765Y (en) * | 2007-04-28 | 2008-03-05 | 天津市天发重型水电设备制造有限公司 | Connection structure between turbine runner chamber and foundation ring |
| CN107859008A (en) * | 2017-11-02 | 2018-03-30 | 国粤（深圳）科技投资有限公司 | A kind of installation method of bulb tubular hydraulic generating set |
| CN208010643U (en) * | 2018-04-03 | 2018-10-26 | 扶祥澄 | A kind of tubular turbine pump |
| CN211598904U (en) * | 2020-01-20 | 2020-09-29 | 湖南五凌电力科技有限公司 | Supporting structure of hydroelectric set runner chamber |
| CN212642940U (en) * | 2020-05-06 | 2021-03-02 | 浙江富春江水电设备有限公司 | Horizontal dismounting drain cone and piston cylinder cover device in rotating wheel chamber of bulb turbine unit |
-
2021
- 2021-07-22 CN CN202110828483.4A patent/CN113530739A/en active Pending
-
2022
- 2022-01-14 CN CN202210043807.8A patent/CN114542353A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB798618A (en) * | 1955-11-30 | 1958-07-23 | Creusot Forges Ateliers | Low-head vertical-shaft hydro electric turbine unit |
| JPH1030543A (en) * | 1996-07-16 | 1998-02-03 | Tohoku Electric Power Co Inc | Valve type turbine generator, disassembly method thereof and guide vane gap adjustment method |
| CN201031765Y (en) * | 2007-04-28 | 2008-03-05 | 天津市天发重型水电设备制造有限公司 | Connection structure between turbine runner chamber and foundation ring |
| CN107859008A (en) * | 2017-11-02 | 2018-03-30 | 国粤（深圳）科技投资有限公司 | A kind of installation method of bulb tubular hydraulic generating set |
| CN208010643U (en) * | 2018-04-03 | 2018-10-26 | 扶祥澄 | A kind of tubular turbine pump |
| CN211598904U (en) * | 2020-01-20 | 2020-09-29 | 湖南五凌电力科技有限公司 | Supporting structure of hydroelectric set runner chamber |
| CN212642940U (en) * | 2020-05-06 | 2021-03-02 | 浙江富春江水电设备有限公司 | Horizontal dismounting drain cone and piston cylinder cover device in rotating wheel chamber of bulb turbine unit |
Non-Patent Citations (2)
| Title |
|---|
| （匈）埃米尔·墨索尼（EMIL MOSONYI）著；陆佑楣等编译: "《水电开发 第1卷 低水头水电站》", 北京：中国电力出版社 , pages: 296 - 306 * |
| 周汉城;: "灯泡贯流式水轮机(Ⅱ)", 大电机技术, no. 02, pages 46 - 51 * |
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| Publication number | Publication date |
|---|---|
| CN113530739A (en) | 2021-10-22 |
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Application publication date: 20220527 |