CN212359995U - Multistage hydraulic generator - Google Patents
Multistage hydraulic generator Download PDFInfo
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- CN212359995U CN212359995U CN202021112198.XU CN202021112198U CN212359995U CN 212359995 U CN212359995 U CN 212359995U CN 202021112198 U CN202021112198 U CN 202021112198U CN 212359995 U CN212359995 U CN 212359995U
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Abstract
The utility model relates to a multistage hydraulic generator belongs to hydraulic turbine technical field, is provided with mount table and hydraulic turbine on the base, is provided with multistage shifter and a plurality of generator on the mount table, and the output of the hydraulic turbine links to each other with the input of multistage shifter through first pivot, and multistage shifter output passes through the second pivot and links to each other with the generator input, install the flywheel in the first pivot, the second pivot is passed through the bearing frame and is installed on the mount table. The utility model discloses be provided with multistage shifter and a plurality of generator on the mount table, the output of the hydraulic turbine links to each other with the input of multistage shifter through first pivot, and multistage shifter output passes through the second pivot and links to each other with the generator input, and a hydraulic turbine drives a plurality of generator work through multistage shifter, make full use of the hydraulic turbine, improved the generated energy when having improved the utilization ratio of the hydraulic turbine.
Description
Technical Field
The utility model relates to a hydraulic turbine technical field especially relates to a multistage hydraulic generator.
Background
The hydraulic generator is a generator 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, and a rotating shaft of the water turbine drives a rotor of the generator to convert the mechanical energy into electric energy for output. Is the main power equipment for generating electric energy in a hydropower station.
The hydraulic generator is driven by the hydraulic turbine. Its rotor is short and thick, the time required for starting and grid-connection of the machine set is short, and its operation and scheduling are flexible, besides general power generation, it is specially suitable for peak-regulating machine set and accident standby machine set.
The maximum capacity of the hydroelectric generating set reaches 80 ten thousand kilowatts. The rotational speed of the hydro-generator will determine the frequency of the alternating current generated and to ensure that this frequency is stable, the rotational speed of the rotor must be stabilized.
In order to stabilize the rotating speed, the rotating speed of the prime motor water turbine can be controlled by adopting a closed-loop control mode, namely, a frequency signal of alternating current to be sent is sampled and fed back to a control system for controlling the opening and closing angles of guide vanes of the water turbine to control the output power of the water turbine, and the rotating speed of the generator can be stabilized by adopting a feedback control principle.
The existing hydraulic generator is provided with a speed regulation switch at a draft tube of the hydraulic turbine, so that the rotating speed of the hydraulic turbine is controlled to adapt to the rotating speed of the generator, namely the utilization rate of the hydraulic turbine is low, meanwhile, the whole hydraulic generator set stops generating power after the generator is damaged, the generator needs to be replaced by a new generator, the whole replacement period is long, and the generating efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a speed regulating switch arranged at the draft tube of a water turbine in the prior hydraulic generator, and then the rotating speed of the water turbine is controlled to adapt to the rotating speed of the generator, namely the utilization rate of the water turbine is low, meanwhile, when the generator is damaged, the whole water turbine generator set stops generating power, a new generator needs to be replaced, the whole replacement period is longer, the power generation efficiency is influenced, further provides a multi-stage hydraulic generator, so that one hydraulic turbine drives a plurality of generators to work through a multi-stage conversion mechanism, the hydraulic turbine is fully utilized, the utilization rate of the hydraulic turbine is improved, the power generation capacity is improved, and when one generator fails, other generators can work normally, and the generator that damages is changed during the maintenance can, has solved and has caused whole shut down of whole hydraulic turbine generating set to influence the technical problem of generating efficiency because of the generator damages.
The utility model adopts the technical scheme that:
a multi-stage hydro-generator comprising: a base, a water turbine, a bearing seat, a flywheel, a multi-stage conversion mechanism and a generator,
the improved water turbine generator set is characterized in that a mounting table and a water turbine are arranged on the base, a multi-stage conversion mechanism and a plurality of generators are arranged on the mounting table, the output end of the water turbine is connected with the input end of the multi-stage conversion mechanism through a first rotating shaft, the output end of the multi-stage conversion mechanism is connected with the input end of the generators through a second rotating shaft, a flywheel is arranged on the first rotating shaft, and the second rotating shaft is arranged on the mounting table through a bearing.
Further, the multistage conversion mechanism includes: the solar energy generator comprises a sun wheel, planet wheels, an inner gear ring, a bearing, a shell and a support, wherein the sun wheel is arranged at one end of a first rotating shaft, the sun wheel, the inner gear ring and the planet wheels form a planet gear mechanism, one end of a second rotating shaft is connected with the planet wheels, the other end of the second rotating shaft is connected with the output end of the generator, the bearing is sleeved outside the inner gear ring, the shell is arranged outside the bearing, and the shell is installed on an installation table through the support.
Furthermore, a limiting flange plate is sleeved on the first rotating shaft, a connecting flange plate is coaxially arranged on the side wall of the flywheel, and the connecting flange plate is connected with the limiting flange plate through bolts.
Furthermore, the limiting flange plate is installed on the first rotating shaft in a welding mode.
Furthermore, the second rotating shaft is connected with the input end of the generator through a flange coupler.
Further, the model of the sun wheel is completely the same as that of the planet wheel.
The utility model discloses following beneficial effect has to prior art:
the utility model discloses be provided with multistage shifter and a plurality of generator on the mount table, the output of the hydraulic turbine links to each other with the input of multistage shifter through first pivot, and multistage shifter output passes through the second pivot and links to each other with the generator input, and a hydraulic turbine drives a plurality of generator work through multistage shifter, make full use of the hydraulic turbine, improved the generated energy when having improved the utilization ratio of the hydraulic turbine.
The utility model discloses a back of breaking down takes place for one of them generator, other generators can normally work, during the maintenance change the damage the generator can, solved and caused whole hydraulic turbine generating set whole shutdown to influence the technical problem of generating efficiency because of the generator damage.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of the multi-stage conversion mechanism of the present invention;
in the figure, 1-base, 2-water turbine, 3-bearing seat, 4-flywheel, 5-multi-stage conversion mechanism, 51-sun wheel, 52-planet wheel, 53-inner gear ring, 54-bearing, 55-shell, 56-bracket, 6-generator, 7-mounting table, 8-first rotating shaft, 9-second rotating shaft, 10-limiting flange plate and 11-connecting flange plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In a first embodiment, a multi-stage hydro-generator is described with reference to fig. 1-2, which includes: a base 1, a water turbine 2, a bearing seat 3, a flywheel 4, a multi-stage conversion mechanism 5 and a generator 6,
be provided with mount table 7 and hydraulic turbine 2 on the base 1, be provided with multistage shifter 5 and a plurality of generator 6 on the mount table 7, the output of hydraulic turbine 2 links to each other with multistage shifter 5's input through first pivot 8, and multistage shifter 5 output links to each other with generator 6 input through second pivot 9, install flywheel 4 on the first pivot 8, second pivot 9 passes through bearing frame 3 and installs on mount table 7. The multistage conversion mechanism 5 includes: the generator comprises a sun wheel 51, planet wheels 52, an inner gear ring 53, a bearing 54, a shell 55 and a support 56, wherein the sun wheel 51 is arranged at one end of the first rotating shaft 8, the sun wheel 51, the inner gear ring 53 and the plurality of planet wheels 52 form a planetary gear mechanism, one end of the second rotating shaft 9 is connected with the planet wheels 52, the other end of the second rotating shaft 9 is connected with the output end of the generator 6, the bearing 54 is sleeved outside the inner gear ring 53, the shell 55 is arranged outside the bearing 54, and the shell 55 is installed on the installation platform 7 through the support 56.
The first rotating shaft 8 is sleeved with a limiting flange plate 10, the side wall of the flywheel 4 is coaxially provided with a connecting flange plate 11, and the connecting flange plate 11 is connected with the limiting flange plate 10 through bolts. And the limiting flange plate 10 is arranged on the first rotating shaft 8 in a welding mode.
And the second rotating shaft 9 is connected with the input end of the generator 6 through a flange coupler. The model of sun gear 51 and planet wheel 52 is the same completely, so set up, a hydraulic turbine 2 drives a plurality of generators 6 work through multistage shifter 5, make full use of hydraulic turbine 2, improved the generated energy when having improved hydraulic turbine 2's utilization ratio, and after one of them generator 6 breaks down, other generators 6 can normally work, it can to change the generator 6 of damage during the maintenance, solved because of the generator 6 damages to cause whole shutdown of hydraulic turbine generating set to influence the technical problem of generating efficiency.
In a second embodiment, on the basis of the first embodiment, referring to fig. 1-2, a mounting table 7 and a water turbine 2 are provided on the base 1, a multi-stage conversion mechanism 5 and a plurality of generators 6 are provided on the mounting table 7, an output end of the water turbine 2 is connected to an input end of the multi-stage conversion mechanism 5 through a first rotating shaft 8, an output end of the multi-stage conversion mechanism 5 is connected to an input end of the generator 6 through a second rotating shaft 9, a flywheel 4 is mounted on the first rotating shaft 8, and the second rotating shaft 9 is mounted on the mounting table 7 through a bearing seat 3, where the multi-stage conversion mechanism 5 includes: the generator comprises a sun wheel 51, planet wheels 52, an inner gear ring 53, bearings 54, a shell 55 and a support 56, wherein the sun wheel 51 is arranged at one end of the first rotating shaft 8, the sun wheel 51, the inner gear ring 53 and the planet wheels 52 form a planetary gear mechanism, one end of the second rotating shaft 9 is connected with the planet wheels 52, the other end of the second rotating shaft 9 is connected with the output end of the generator 6, the bearings 54 are sleeved outside the inner gear ring 53, the shell 55 is arranged outside the bearings 54, the shell 55 is arranged on the mounting table 7 through the support 56, and therefore the sun wheel 51 drives the planet wheels 52 to rotate for grading treatment, the generators 6 are driven to generate electricity, and when one of the generators 6 is damaged, the whole generator set is not influenced to generate electricity.
In the third embodiment, on the basis of the first embodiment, referring to fig. 1-2, a limiting flange 10 is sleeved on the first rotating shaft 8, a connecting flange 11 is coaxially arranged on the side wall of the flywheel 4, and the connecting flange 11 is connected with the limiting flange 10 through a bolt, so that the flywheel 4 can be conveniently installed and replaced.
In the fourth embodiment, based on the third embodiment, with reference to fig. 1-2, the limiting flange 10 is installed on the first rotating shaft 8 by welding, and thus, the limiting flange 10 is ensured to be stably installed on the first rotating shaft 8.
In the fifth embodiment, on the basis of the first embodiment, referring to fig. 1-2, the second rotating shaft 9 is connected to the input end of the generator 6 through a flange coupler, so that the damaged generator 6 can be replaced conveniently.
In the fifth embodiment, based on the second embodiment, as described with reference to fig. 1-2, the sun gear 51 and the planet gear 52 are of the same type, and thus it is ensured that the rotation speed of the second rotating shaft 9 is not changed through the transmission of the sun gear 51 and the planet gear 52.
Be provided with multistage shifter 5 and a plurality of generator 6 on mount table 7, the output of hydraulic turbine 2 links to each other through first pivot 8 and multistage shifter 5's input, the 5 output of multistage shifter links to each other with generator 6 input through second pivot 9, a hydraulic turbine drives a plurality of generator work through multistage shifter, make full use of the hydraulic turbine, the generated energy has been improved when having improved the utilization ratio of the hydraulic turbine, and after one of them generator breaks down, other generators can normal work, change the generator of damage during the maintenance can, the technical problem of whole hydraulic turbine generating set whole shut down influence generating efficiency because of the generator damage has been solved.
The working process is as follows:
the hydraulic turbine 2 drives the first rotating shaft 8 to rotate, and then drives the sun gear 51 to rotate, the sun gear 51 is meshed with the planet gear 52 for transmission, and then drives the planet gear 52 to rotate, the planet gear 52 drives the second rotating shaft 9, the second rotating shaft 9 is connected with the input end of the generator 6 through a flange, and then the generator 6 is driven to generate electricity.
When one of the generators 6 is damaged, the rest of the generators can normally perform a power generation process and are replaced when the maintenance period is up, although the whole power generation amount is reduced by a part, the generators do not need to be integrally stopped for replacement, meanwhile, the service efficiency of the water turbine is improved by the multiple generators, and the whole power generation amount is much higher than that of the existing water turbine generator set.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A multi-stage hydro-generator comprising: a base (1), a water turbine (2), a bearing seat (3), a flywheel (4), a multi-stage conversion mechanism (5) and a generator (6),
be provided with mount table (7) and hydraulic turbine (2) on base (1), be provided with multistage shifter (5) and a plurality of generator (6) on mount table (7), the output of hydraulic turbine (2) links to each other through first pivot (8) and the input of multistage shifter (5), and multistage shifter (5) output links to each other with generator (6) input through second pivot (9), install flywheel (4) on first pivot (8), second pivot (9) are installed on mount table (7) through bearing frame (3).
2. The multi-stage hydro-generator according to claim 1, wherein the multi-stage conversion mechanism (5) comprises: the solar energy generator comprises a sun wheel (51), planet wheels (52), an inner gear ring (53), bearings (54), a shell (55) and a support (56), wherein the sun wheel (51) is arranged at one end of a first rotating shaft (8), the sun wheel (51), the inner gear ring (53) and a plurality of planet wheels (52) form a planet gear mechanism, one end of a second rotating shaft (9) is connected with the planet wheels (52), the other end of the second rotating shaft (9) is connected with the output end of a generator (6), the bearings (54) are sleeved outside the inner gear ring (53), the shell (55) is arranged outside the bearings (54), and the shell (55) is installed on a mounting table (7) through the support (56).
3. The multi-stage hydraulic generator according to claim 1, wherein the first rotating shaft (8) is sleeved with a limiting flange (10), the side wall of the flywheel (4) is coaxially provided with a connecting flange (11), and the connecting flange (11) is connected with the limiting flange (10) through bolts.
4. A multi-stage hydro-generator according to claim 3 wherein the limiting flange (10) is mounted on the first shaft (8) by welding.
5. The multi-stage hydro-generator according to claim 1, wherein the second shaft (9) is connected to the input of the generator (6) by a flange coupling.
6. The multistage hydro-generator according to claim 2, characterized in that the sun wheel (51) is of the same type as the planet wheels (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021112198.XU CN212359995U (en) | 2020-06-16 | 2020-06-16 | Multistage hydraulic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021112198.XU CN212359995U (en) | 2020-06-16 | 2020-06-16 | Multistage hydraulic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212359995U true CN212359995U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021112198.XU Active CN212359995U (en) | 2020-06-16 | 2020-06-16 | Multistage hydraulic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212359995U (en) |
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2020
- 2020-06-16 CN CN202021112198.XU patent/CN212359995U/en active Active
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