CN212898633U - Energy-saving steam turbine - Google Patents
Energy-saving steam turbine Download PDFInfo
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- CN212898633U CN212898633U CN202021989945.8U CN202021989945U CN212898633U CN 212898633 U CN212898633 U CN 212898633U CN 202021989945 U CN202021989945 U CN 202021989945U CN 212898633 U CN212898633 U CN 212898633U
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Abstract
The utility model provides an energy-saving steam turbine, the on-line screen storage device comprises a base, the low pressure jar has been seted up to base top front end, low pressure jar inner wall fixed mounting has low pressure seal baffle, a plurality of low pressure baffle stationary blades of low pressure seal baffle top fixed connection, the rotation connector is installed to low pressure jar internal rotation, rotate two low pressure stationary blade structures of connector outer wall fixedly connected with, two rotate the connector outer wall and rotate and be connected with two low pressure moving blade structures, the high pressure jar has been seted up to base top rear end. The utility model improves the internal fluid channel environment of the steam turbine by the arrangement of the low-pressure moving blade structure and the low-pressure static blade structure and the arrangement of the high-pressure moving blade structure and the high-pressure static blade in cooperation with the low-pressure sealing partition plate and the high-pressure sealing partition plate, and improves the comprehensive energy efficiency by about 10 percent; the low-pressure clapboard stator blade and the high-pressure clapboard stator blade are utilized to improve the sealing performance and reduce the steam leakage rate.
Description
Technical Field
The utility model mainly relates to the technical field of steam turbines, concretely relates to energy-saving steam turbine.
Background
The steam turbine is also called as steam turbine engine, and is a rotary steam power equipment, and the high-temperature high-pressure steam is passed through fixed nozzle, becomes accelerated air flow, and is sprayed on the blade to make the rotor equipped with blade row rotate, at the same time, it can do work for exterior. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, chemical industry and ship power plants.
With the rapid development and updating of the design concepts and means of the aerodynamic thermodynamics of impeller machinery and the through-flow part of the steam turbine, at present, the design method of the through-flow part of the steam turbine taking the latest aerodynamic thermodynamics analysis and calculation as the core is completely mature, the fourth generation through-flow design represented by the bending and twisting combined forming enters the industrial practical stage, and the efficiency of the fourth generation through-flow design is improved by about 5 percent compared with that of the second generation steam turbine.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides an energy-saving steam turbine for solve the technical problem who proposes in the above-mentioned background art.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
an energy-saving steam turbine comprises a base, a low pressure cylinder is arranged at the front end of the top of the base, a low pressure sealing clapboard is fixedly arranged on the inner wall of the low pressure cylinder, the top of the low-pressure sealing clapboard is fixedly connected with a plurality of low-pressure clapboard stator blades, a rotary connecting body is rotatably arranged in the low-pressure cylinder, the outer wall of the rotary connecting body is fixedly connected with two low-pressure stationary blade structures, the outer wall of the rotary connecting body is rotatably connected with two low-pressure moving blade structures, the rear end of the top of the base is provided with a high pressure cylinder, the inner wall of the high pressure cylinder is fixedly provided with a high pressure sealing clapboard, the top of the high-pressure sealing clapboard is fixedly connected with a plurality of high-pressure clapboard stator blades, a rotary connecting body is rotatably arranged in the high-pressure cylinder, the outer wall of the rotating connector is fixedly connected with two high-pressure stationary blade structures, and the outer wall of the rotating connector is rotatably connected with two high-pressure moving blade structures.
Two the rotation connector is through rotating main shaft fixed connection, the rotation groove has been seted up in the middle of the base top, and rotates the groove and run through low pressure jar and high pressure jar.
The two low-pressure moving blade structures and the two low-pressure stationary blade structures are arranged at intervals, and the two high-pressure moving blade structures and the two high-pressure stationary blade structures are arranged at intervals.
The low-pressure sealing clapboard and the high-pressure sealing clapboard are arranged in a shunting cascade mode, and the low-pressure clapboard static blades and the high-pressure clapboard static blades are arranged in a new blade type of 'after-loading'.
The two low-pressure stator blade structures and the two high-pressure stator blade structures are composed of a plurality of bent and twisted stator blades, and the last-stage bent and twisted stator blade is set to be in a special J shape.
Two low pressure moving blade structure and two high pressure moving blade structures comprise a plurality of moving blades, and the moving blade sets up to novel moving blade profile.
The two high-pressure moving blade structures are shorter, the tops of the moving blades are cylindrical surfaces, the tops of the moving blades adopt self-contained crown structures, the shrouds are connected in a whole circle, the two low-pressure moving blade structure shrouds are of inner-inclined outer-flat structures, and meridian surfaces form a smooth passage.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model improves the internal fluid channel environment of the steam turbine by the arrangement of the low-pressure moving blade structure and the low-pressure static blade structure and the arrangement of the high-pressure moving blade structure and the high-pressure static blade in cooperation with the low-pressure sealing partition plate and the high-pressure sealing partition plate, and improves the comprehensive energy efficiency by about 10 percent; the sealing performance is improved by using the low-pressure clapboard stator blade and the high-pressure clapboard stator blade, and the steam leakage rate is reduced; the low-pressure sealing partition and the high-pressure sealing partition are arranged in a shunting cascade mode, and the low-pressure partition static blades and the high-pressure partition static blades are arranged in a new blade type of 'after-loading', so that the load regulation and adaptability are enhanced, and the higher operation efficiency is kept in a low-load state; the two high-pressure moving blade structures are shorter, the tops of the moving blades are cylindrical surfaces, the tops of the moving blades adopt self-contained crown structures, the shrouds are connected in a whole circle, the two low-pressure moving blade structure shrouds are inner-inclined outer-flat structures, meridian surfaces form a fairing passage, the safety and reliability of the operation of the steam turbine are enhanced, and the service life of the steam turbine is prolonged.
The present invention will be explained in detail with reference to the drawings and specific embodiments.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the base structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
fig. 4 is an enlarged schematic structural diagram of the point B in fig. 1 according to the present invention.
In the figure: 1. a base; 2. a low pressure cylinder; 3. a low pressure moving blade structure; 4. a low pressure stationary blade structure; 5. a high pressure cylinder; 6. rotating the connector; 7. a high pressure moving blade structure; 8. a high pressure stationary blade structure; 9. a low pressure seal separator; 10. a high pressure seal separator; 11. a low pressure diaphragm stationary blade; 12. a high pressure diaphragm stationary vane.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1-4 heavily, an energy-saving steam turbine comprises a base 1, a low pressure cylinder 2 is arranged at the front end of the top of the base 1, a low pressure sealing partition 9 is fixedly arranged on the inner wall of the low pressure cylinder 2, a plurality of low pressure partition stationary blades 11 are fixedly connected to the top of the low pressure sealing partition 9, a rotating connector 6 is rotatably arranged in the low pressure cylinder 2, two low pressure stationary blade structures 4 are fixedly connected to the outer wall of the rotating connector 6, two low pressure moving blade structures 3 are rotatably connected to the outer wall of the two rotating connectors 6, a high pressure cylinder 5 is arranged at the rear end of the top of the base 1, a high pressure sealing partition 10 is fixedly arranged on the inner wall of the high pressure cylinder 5, a plurality of high pressure partition stationary blades 12 are fixedly connected to the top of the high pressure sealing partition 10, a rotating connector 6 is rotatably arranged in the.
Two rotate the connector 6 through rotating main shaft fixed connection, have seted up in the middle of the base 1 top and have rotated the groove, and rotate the groove and run through low pressure jar 2 and high-pressure jar 5. Two low-pressure moving blade structures 3 and two low-pressure stationary blade structures 4 are arranged at intervals, and two high-pressure moving blade structures 7 and two high-pressure stationary blade structures 8 are arranged at intervals. The low pressure sealing diaphragm 9 and the high pressure sealing diaphragm 10 are arranged in a split cascade fashion, and the low pressure diaphragm stationary blades 11 and the high pressure diaphragm stationary blades 12 are arranged in a "back-loaded" new blade profile. The two low-pressure stator blade structures 4 and the two high-pressure stator blade structures 8 are respectively composed of a plurality of bent and twisted stator blades, and the last-stage bent and twisted stator blade is set to be in a special J-shaped form. Two low pressure moving blade structures 3 and two high pressure moving blade structures 7 constitute by a plurality of moving blades, and the moving blade sets up to novel moving blade profile, adopts novel moving blade profile, has improved speed distribution, has reduced the moving blade loss. The two high-pressure moving blade structures 7 are shorter, the tops of the moving blades are cylindrical surfaces, the tops of the moving blades adopt self-contained crown structures, the shrouds are connected in a whole circle, the shrouds of the two low-pressure moving blade structures 3 are in an inner-inclined outer-flat structure, meridian surfaces form a smooth channel, and all moving blade top steam seal teeth at all levels are increased to three to four pieces by two pieces in the original design, so that steam leakage loss can be reduced.
The utility model discloses a concrete operation as follows: when the device works, airflow firstly enters a low-pressure cylinder 2, two low-pressure moving blade structures 3 and two low-pressure stationary blade structures 4 are arranged at intervals, and the last-stage bent stationary blades of the two low-pressure stationary blade structures 4 are set to be in a special J-shaped form, so that the internal fluid passage environment of a steam turbine is improved; then the high-pressure steam enters a high-pressure cylinder 5, two high-pressure moving blade structures 7 and two high-pressure static blade structures 8 are arranged at intervals, and a high-pressure sealing partition plate 10 is arranged in a shunting blade grid mode, so that the sealing performance is improved and the steam leakage rate is reduced by matching the two high-pressure moving blade structures and the two high-pressure static blade structures;
the two high-pressure moving blade structures 7 are shorter, the tops of the moving blades are cylindrical surfaces, the tops of the moving blades adopt self-contained crown structures, the shrouds are connected in a whole circle, the shrouds of the two low-pressure moving blade structures 3 are in an inner-inclined outer-flat structure, meridian surfaces form a smooth channel, and all moving blade top steam seal teeth at all levels are increased to three to four pieces by two pieces in the original design, so that steam leakage loss can be reduced.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.
Claims (7)
1. The utility model provides an energy-saving steam turbine, including base (1), its characterized in that: the high-pressure sealing device is characterized in that a low-pressure cylinder (2) is arranged at the front end of the top of the base (1), a low-pressure sealing partition plate (9) is fixedly arranged on the inner wall of the low-pressure cylinder (2), a plurality of low-pressure partition plate fixed blades (11) are fixedly connected to the top of the low-pressure sealing partition plate (9), a rotating connector (6) is rotatably arranged in the low-pressure cylinder (2), two low-pressure fixed blade structures (4) are fixedly connected to the outer wall of the rotating connector (6), two low-pressure moving blade structures (3) are rotatably connected to the outer wall of the rotating connector (6), a high-pressure cylinder (5) is arranged at the rear end of the top of the base (1), a high-pressure sealing partition plate (10) is fixedly arranged on the inner wall of the high-pressure cylinder (5), a, the outer wall of the rotating connecting body (6) is fixedly connected with two high-pressure stationary blade structures (8), and the outer wall of the rotating connecting body (6) is rotatably connected with two high-pressure moving blade structures (7).
2. An energy efficient steam turbine according to claim 1 wherein: two the rotation connector (6) is through rotating main shaft fixed connection, the rotation groove has been seted up in the middle of base (1) top, and rotates the groove and run through low pressure jar (2) and high-pressure jar (5).
3. An energy efficient steam turbine according to claim 1 wherein: the two low-pressure moving blade structures (3) and the two low-pressure static blade structures (4) are arranged at intervals, and the two high-pressure moving blade structures (7) and the two high-pressure static blade structures (8) are arranged at intervals.
4. An energy efficient steam turbine according to claim 1 wherein: the low-pressure sealing clapboard (9) and the high-pressure sealing clapboard (10) are arranged in a shunting cascade mode, and the low-pressure clapboard static blades (11) and the high-pressure clapboard static blades (12) are arranged in a 'rear loading' new blade type.
5. An energy efficient steam turbine according to claim 1 wherein: the two low-pressure stator blade structures (4) and the two high-pressure stator blade structures (8) are composed of a plurality of bent and twisted stator blades, and the last-stage bent and twisted stator blade is set to be in a special J shape.
6. An energy efficient steam turbine according to claim 1 wherein: two low pressure moving blade structure (3) and two high pressure moving blade structure (7) constitute by a plurality of moving blades, and the moving blade sets up to novel moving blade profile.
7. An energy efficient steam turbine according to claim 1 wherein: the two high-pressure moving blade structures (7) are shorter, the tops of the moving blades are cylindrical, the tops of the moving blades adopt self-contained crown structures, the shrouds are connected in a whole circle, the two low-pressure moving blade structures (3) are in an inner-inclined outer-flat structure, and meridian planes form a smooth channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021989945.8U CN212898633U (en) | 2020-09-14 | 2020-09-14 | Energy-saving steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021989945.8U CN212898633U (en) | 2020-09-14 | 2020-09-14 | Energy-saving steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898633U true CN212898633U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021989945.8U Active CN212898633U (en) | 2020-09-14 | 2020-09-14 | Energy-saving steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212898633U (en) |
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2020
- 2020-09-14 CN CN202021989945.8U patent/CN212898633U/en active Active
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