CN218844396U - 60MW single-reheat reaction type air turbine - Google Patents
60MW single-reheat reaction type air turbine Download PDFInfo
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- CN218844396U CN218844396U CN202223346293.8U CN202223346293U CN218844396U CN 218844396 U CN218844396 U CN 218844396U CN 202223346293 U CN202223346293 U CN 202223346293U CN 218844396 U CN218844396 U CN 218844396U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
A60 MW single reheat reaction type air turbine relates to the technical field of compressed air energy storage. The problem that the level efficiency and the cycle efficiency of an existing compressed air energy storage air turbine are poor and the stable operation of the air turbine cannot be met is solved. The front bearing box is connected with one end of the cylinder through the cat's claw, the other end of the cylinder is connected with one end of the exhaust cylinder, the inside tail end of the exhaust cylinder is provided with a rear bearing box, a longitudinal pin is arranged between the bottom of the exhaust cylinder and the base frame, the other end of the exhaust cylinder is connected with one end of the expansion joint, the other end of the expansion joint is connected with the input end of the exhaust device, a rotor is arranged between the front bearing box and the rear bearing box, the rotor is arranged inside the cylinder, a high-pressure partition plate sleeve and a medium-pressure partition plate sleeve are sequentially sleeved on the rotor from left to right, two air inlets are uniformly arranged in the middle of the outer surface of the cylinder along the circumferential direction, and each air inlet is connected with the main steam adjusting combination valve through a flange. The utility model is suitable for a compressed air energy storage technical field.
Description
Technical Field
The utility model relates to a compressed air energy storage technical field, concretely relates to 60MW is reheat reaction type air turbine once.
Background
At present, compressed air energy storage is a novel energy storage technology and is in a vigorous development stage, an air turbine is important equipment of a compressed air energy storage system, the existing air turbine equipment cannot meet the requirement of further commercialization of the compressed air energy storage system, and the air turbine equipment with reasonable structural design, high level efficiency and high circulation efficiency is urgently required to be developed to meet the operation requirement of the compressed air energy storage system.
The working medium of air turbine unit is the air, needs compress the air and input the inside of air turbine unit, and the air turbine level efficiency and the circulation efficiency of current compressed air energy storage unit are relatively poor, can't satisfy the problem of even running.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the level efficiency and the circulation efficiency of the compressed air energy storage unit on the current air turbine unit relatively poor, unable air turbine's even running's problem, and provide a 60MW reheat reaction type air turbine.
The utility model relates to a 60MW single reheat reaction type air turbine, which comprises a cylinder 1, a rotor 2, an exhaust cylinder 3, a front bearing box 4, a rear bearing box 5, a high-pressure clapboard sleeve 8, a middle-pressure clapboard sleeve 9, a main air adjusting joint valve 11, a cat's claw 12, a longitudinal pin 13, an expansion joint 14 and an exhaust device 15;
the front bearing box 4 is connected with one end of the cylinder 1 through a cat claw 12, the other end of the cylinder 1 is connected with one end of the exhaust cylinder 3, the tail end of the interior of the exhaust cylinder 3 is provided with a rear bearing box 5, a longitudinal pin 13 is arranged between the bottom of the exhaust cylinder 3 and the base frame, the other end of the exhaust cylinder 3 is connected with one end of an expansion joint 14, the other end of the expansion joint 14 is connected with the input end of an exhaust device 15, a rotor 2 is arranged between the front bearing box 4 and the rear bearing box 5, the rotor 2 is arranged in the exhaust cylinder 3, the rotor 2 is sequentially sleeved with a high-pressure partition plate sleeve 8 and a middle-pressure partition plate sleeve 9 from left to right, the outer surface of the exhaust cylinder 3 is uniformly provided with two air inlets 10 along the circumferential direction, and each air inlet 10 is connected with a main air regulation combined valve 11 through a flange;
further, a first thrust support bearing 6 is arranged inside the front bearing box 4;
furthermore, one end of the rotor 2 is inserted into the front bearing box 4 and then is connected with the inner ring of the first thrust support bearing 6;
further, a second thrust support bearing 7 is arranged inside the rear bearing box 5;
furthermore, the other end of the rotor 2 is inserted into the rear bearing box 5 and then connected with the inner ring of a second thrust support bearing 7;
further, the rear bearing box 5 is welded and fixed with the inner wall of the exhaust cylinder 3 integrally;
further, the exhaust port 10 adopts a 2x 180-degree tangential air inlet structure;
further, the front bearing box 4 and the rear bearing box 5 are both arranged on a base frame of the air turbine unit through a bracket;
further, the front bearing box 4 and the rear bearing box 5 are coaxially arranged;
furthermore, the front bearing box 4 and the rear bearing box 5 of the device are both arranged on a base frame of the air turbine unit through a bracket, and the adjusting end of the high-pressure cylinder is supported on the front bearing box 4 through a lower cat claw. A push-pull rod structure is adopted between the front bearing box 4 and the cylinder 1, so that the cylinder 1 can keep correct axial and transverse positions relative to the bearing seat; the exhaust cylinder 3 and the rear bearing box 5 are integrated and are connected to the cylinder 1 through a vertical flange, the exhaust cylinder 3 is supported on flexible supports on the left side and the right side, axial expansion is absorbed through the flexible supports, an expansion joint 14 is arranged between the exhaust cylinder 3 and an exhaust device 15 to absorb expansion of the unit, and the arrangement mode can realize synchronous axial movement between the bearing box and the cylinder in various operation working conditions of starting, stopping and the like of the unit;
and the absolute dead point of the structural unit is designed on the front bearing box 4 and is positioned on the base frame by a transverse key, and the absolute dead point is the expansion dead point of the whole unit. The relative expansion dead center of the rotor 2 of the air turbine is designed at the thrust bearing of the front bearing housing 4. During operation, the front bearing box 4 and the cylinder 1 expand from an absolute dead point to an exhaust end, the front bearing box 4 pushes the cylinder to slide through the centering beam, and the rotor 2 of the air turbine expands towards two ends by taking the thrust bearing as a center.
Compared with the prior art, the utility model following beneficial effect has:
the utility model overcomes the defects of the prior art, adopts the structure that the front bearing box and the rear bearing box are both arranged on the base frame of the air turbine unit through the bracket, and the adjusting end of the high-pressure cylinder is supported on the front bearing box through the lower cat claw; a push-pull rod structure is adopted between the front bearing box and the air cylinder, so that the air cylinder can keep correct axial and transverse positions relative to the bearing seat; the exhaust cylinder and the rear bearing box are integrated and are connected to the cylinder through a vertical flange, the exhaust cylinder is supported on the supports on the left side and the right side, the exhaust cylinder is supported on the supports, and an expansion joint is arranged between the exhaust cylinder and the exhaust device to absorb the expansion of the unit;
and the absolute dead point of the structure unit is designed on the front bearing box, and is positioned on the base frame by a transverse key, so that the absolute dead point is the expansion dead point of the whole unit. The relative expansion dead center of the rotor of the air turbine is designed at the thrust bearing of the front bearing box. During operation, the front bearing box and the air cylinder expand from an absolute dead point to an exhaust end, the front bearing box pushes the air cylinder to slide through a push-pull rod, and a rotor of the air turbine expands towards two ends by taking the thrust bearing as a center;
the air turbine unit with the structure adopts a multi-stage small enthalpy drop reaction type design, so that the high flow efficiency is fundamentally improved; all the static blades and the movable blades of the unit adopt pre-twisted assembly type structures, and compared with the traditional welding partition plate, the assembly type structures have no welding seams, so that the welding deformation is avoided, and the through-flow precision is better ensured; the air inlet and exhaust chamber molded lines are optimized, the pneumatic performance is excellent, and the pressure loss is in a reasonable range, so that the stage efficiency and the circulation efficiency of a compressed air energy storage unit on the air turbine unit are improved, and the stable operation of the air turbine is further ensured.
Drawings
FIG. 1 is a main sectional view of a 60MW single reheat reaction air turbine according to the present invention;
FIG. 2 is a front view of a 60MW single reheat reaction air turbine according to the present invention;
FIG. 3 is a side view of a 60MW single reheat reaction air turbine according to the present invention;
FIG. 4 is a side view of the middle of a 60MW single reheat reaction air turbine according to the present invention;
FIG. 5 is a top view of a 60MW single reheat reaction air turbine according to the present invention;
fig. 6 is a schematic view of the connection structure of the front bearing box, the cylinder, the exhaust cylinder, the rear bearing box and the exhaust device in the 60MW single reheat reaction type air turbine of the present invention.
Detailed Description
The first specific implementation way is as follows: the embodiment is described with reference to fig. 1 to 6, and the 60MW single reheat reaction type air turbine according to the embodiment comprises a cylinder 1, a rotor 2, an exhaust cylinder 3, a front bearing box 4, a rear bearing box 5, a high-pressure partition sleeve 8, an intermediate-pressure partition sleeve 9, a main air regulation combination valve 11, a cat's claw 12, a longitudinal pin 13, an expansion joint 14 and an exhaust device 15;
the exhaust device is characterized in that the front bearing box 4 is connected with one end of the cylinder 1 through a cat claw 12, the other end of the cylinder 1 is connected with one end of the exhaust cylinder 3, the tail end of the inside of the exhaust cylinder 3 is provided with a rear bearing box 5, a longitudinal pin 13 is arranged between the bottom of the rear bearing box 5 and the bottom surface of the inside of the exhaust cylinder 3, the other end of the exhaust cylinder 3 is connected with one end of an expansion joint 14, the other end of the expansion joint 14 is connected with the input end of an exhaust device 15, a rotor 2 is arranged between the front bearing box 4 and the rear bearing box 5, the rotor 2 is arranged inside the exhaust cylinder 3, a high-pressure partition plate sleeve 8 and a middle-pressure partition plate sleeve 9 are sequentially sleeved on the rotor 2 from left to right, two air inlets 10 are uniformly arranged on the outer surface of the exhaust cylinder 3 along the circumferential direction, and each air inlet 10 is connected with a main air regulation combined valve 11 through a flange;
in the specific embodiment, a front bearing box and a rear bearing box are both arranged on a base frame of an air turbine unit through a bracket, and the adjusting end of a high-pressure cylinder is supported on the front bearing box through a lower cat claw; a push-pull rod structure is adopted between the front bearing box and the air cylinder, so that the air cylinder can keep correct axial and transverse positions relative to the bearing seat; the exhaust cylinder and the rear bearing box are integrated and are connected to the cylinder through a vertical flange, the exhaust cylinder is supported on the left and right flexible supports, the exhaust cylinder is supported on the supports, and an expansion joint is arranged between the exhaust cylinder and the exhaust device to absorb the expansion of the unit;
and the absolute dead point of the structural unit is designed on the front bearing box, and is positioned on the base frame by a transverse key, so that the absolute dead point is the expansion dead point of the whole unit. The relative expansion dead center of the rotor of the air turbine is designed at the thrust bearing of the front bearing box. During operation, the front bearing box and the air cylinder expand from an absolute dead point to an exhaust end, the front bearing box pushes the air cylinder to slide through the centering beam, and a rotor of the air turbine expands to two ends by taking the thrust bearing as a center;
the air turbine unit with the structure adopts a multi-stage small enthalpy drop reaction type design, so that the high flow efficiency is fundamentally improved; all the static blades and the movable blades of the unit adopt a pre-twisted assembly type structure, and compared with the traditional welding partition plate, the assembly type structure has no welding line, so that the welding deformation is avoided, and the through-flow precision is better ensured; the molded lines of the air inlet chamber and the air exhaust chamber are optimized, the pneumatic performance is excellent, and the pressure loss is in a reasonable range, so that the stage efficiency and the cycle efficiency of a compressed air energy storage unit on the air turbine unit are improved, and the stable operation of the air turbine is further ensured;
the single-layer cylinder structure is adopted, the working environment characteristics of the unit are adapted, the cylinder body is good in strength, good in rigidity and small in thermal stress, the cylinder adopts a cast blank and adopts a high-narrow flange structure, and meanwhile, the single-layer cylinder structure is simple, rapid in temperature conduction and small in relative expansion difference, and can adapt to the requirement of rapid starting of the unit; the single-cylinder axial exhaust arrangement is adopted, the workshop space is saved, and the cost is saved.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 1 to 6, and the present embodiment is a further limitation of the air turbine unit according to the first embodiment, and a 60MW single reheat reaction type air turbine according to the present embodiment, wherein a first thrust support bearing 6 is provided inside the front bearing housing 4.
The third concrete implementation mode: the present embodiment will be described with reference to fig. 1 to 6, and the present embodiment is a further limitation of the air turbine unit according to the second embodiment, and in the 60MW single reheat reaction air turbine according to the present embodiment, one end of the rotor 2 is inserted into the front bearing housing 4 and then connected to the inner ring of the first thrust support bearing 6.
The fourth concrete implementation mode: the present embodiment will be described with reference to fig. 1 to 6, and the present embodiment is a further limitation of the air turbine unit according to the first embodiment, and a 60MW single reheat reaction air turbine according to the present embodiment, wherein a second thrust support bearing 7 is provided inside the rear bearing housing 5.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 1 to 6, and the present embodiment is a further limitation of the air turbine unit according to the fourth embodiment, and in the 60MW single reheat reaction type air turbine according to the present embodiment, the other end of the rotor 2 is inserted into the rear bearing housing 5 and then connected to the inner ring of the second thrust bearing 7.
The sixth specific implementation mode: the present embodiment will be described with reference to fig. 1 to 6, and the present embodiment is a further limitation of the air turbine unit according to the first embodiment, and in the 60MW single reheat reaction air turbine according to the present embodiment, the rear bearing housing 5 is welded and fixed integrally with the inner wall of the exhaust casing 3;
in the specific embodiment, the rear bearing box 5 and the inner wall of the exhaust cylinder 3 are welded and fixed integrally, the exhaust cylinder is connected to the cylinder through the vertical flange, the exhaust cylinder is supported on the flexible supports on the left side and the right side, the flexible supports absorb axial expansion of the unit, and the expansion joint arranged between the exhaust cylinder and the exhaust device absorbs expansion of the unit.
The seventh embodiment: the present embodiment is described with reference to fig. 1 to 6, and the present embodiment is a further limitation of the air turbine set according to the first embodiment, and the present embodiment is a 60MW single reheat reaction air turbine, and the exhaust port 10 adopts a 2x180 ° tangential inlet structure;
in the specific embodiment, the steam outlet 10 adopts a 2x 180-degree tangential air inlet structure, so that the pneumatic efficiency is improved.
The specific implementation mode is eight: the present embodiment will be described with reference to fig. 1 to 6, and the present embodiment is a further limitation of the air turbine unit according to the first embodiment, and the 60MW single reheat reaction type air turbine according to the present embodiment, wherein the front bearing housing 4 and the rear bearing housing 5 are both mounted on the base frame of the air turbine unit through brackets;
in the embodiment, the front bearing box 4 and the rear bearing box 5 are both arranged on the base frame of the air turbine unit through a bracket, so that the stability of the unit in operation is improved.
The specific implementation method nine: the present embodiment will be described with reference to fig. 1 to 6, and the present embodiment is a further limitation of the air turbine unit according to the eighth embodiment, and in the 60MW single reheat reaction type air turbine according to the present embodiment, the front bearing housing 4 and the rear bearing housing 5 are coaxially disposed.
Principle of operation
The device adopts the technical scheme that a front bearing box and a rear bearing box are both arranged on a base frame of an air turbine unit through a bracket, and a high-pressure cylinder adjusting end is supported on the front bearing box through a lower cat claw; a push-pull rod structure is adopted between the front bearing box and the air cylinder, so that the air cylinder can keep correct axial and transverse positions relative to the bearing seat; the exhaust cylinder and the rear bearing box are integrated and are connected to the cylinder through a vertical flange, the exhaust cylinder is supported on the flexible supports on the left side and the right side, an expansion joint is arranged between the exhaust cylinder and the exhaust device to absorb the expansion of the unit, and the arrangement mode can realize the synchronous axial movement between the bearing box and the cylinder in various operation working conditions such as starting and stopping of the unit;
and the absolute dead point of the structural unit is designed on the front bearing box, and is positioned on the base frame by a transverse key, so that the absolute dead point is the expansion dead point of the whole unit. The relative expansion dead center of the rotor of the air turbine is designed at the thrust bearing of the front bearing box. During operation, the front bearing box and the air cylinder expand from an absolute dead point to an exhaust end, the front bearing box pushes the air cylinder to slide through a push-pull rod, and a rotor of the air turbine expands towards two ends by taking the thrust bearing as a center;
the air turbine unit with the structure adopts a multi-stage small enthalpy drop reaction type design, so that the high flow efficiency is fundamentally improved; all the static blades and the movable blades of the unit adopt a pre-twisted assembly type structure, and compared with the traditional welding partition plate, the assembly type structure has no welding line, so that the welding deformation is avoided, and the through-flow precision is better ensured; the molded lines of the air inlet chamber and the air exhaust chamber are optimized, the pneumatic performance is excellent, and the pressure loss is in a reasonable range, so that the stage efficiency and the cycle efficiency of a compressed air energy storage unit on the air turbine unit are improved, and the stable operation of the air turbine is further ensured;
the single-layer cylinder structure is adopted, the working environment characteristics of the unit are adapted, the cylinder body is good in strength, good in rigidity and small in thermal stress, the cylinder adopts a cast blank and adopts a high-narrow flange structure, and meanwhile, the single-layer cylinder structure is simple, rapid in temperature conduction and small in relative expansion difference, and can adapt to the requirement of rapid starting of the unit; the single-cylinder axial exhaust arrangement is adopted, the workshop space is saved, and the cost is saved.
Claims (9)
1. A60 MW single reheat reaction air turbine is characterized in that: the device comprises a cylinder (1), a rotor (2), an exhaust cylinder (3), a front bearing box (4), a rear bearing box (5), a high-pressure partition plate sleeve (8), a middle-pressure partition plate sleeve (9), a main air regulation combined valve (11), a cat claw (12), a longitudinal pin (13), an expansion joint (14) and an exhaust device (15);
front bearing case (4) be connected with the one end of cylinder (1) through cat claw (12), the other end of cylinder (1) is connected with the one end of air discharge tube (3), the inside tail end of air discharge tube (3) is equipped with rear bearing case (5), and be equipped with vertical pin (13) between the bottom of air discharge tube (3) and bed frame, the other end and the one end of expansion joint (14) of air discharge tube (3) are connected, the other end and the input of exhaust apparatus (15) of expansion joint (14) are connected, be equipped with a rotor (2) between front bearing case (4) and rear bearing case (5), and rotor (2) set up in cylinder (1), the inside of air discharge tube (3), rotor (2) are gone up and are overlapped from left to right in proper order and are equipped with high pressure baffle cover (8) and medium pressure baffle cover (9), the surface of air discharge tube (3) is equipped with two air inlets (10) along the circumferencial direction is even, and every air inlet (10) are connected with main air regulation combination valve (11) through the flange.
2. A 60MW single reheat reaction air turbine as claimed in claim 1 wherein: a first thrust supporting bearing (6) is arranged in the front bearing box (4).
3. A 60MW single reheat reaction air turbine as claimed in claim 2 wherein: one end of the rotor (2) is inserted into the front bearing box (4) and then connected with the inner ring of the first thrust support bearing (6).
4. A 60MW single reheat reaction air turbine as claimed in claim 1, wherein: and a second thrust supporting bearing (7) is arranged in the rear bearing box (5).
5. A60 MW single reheat reaction air turbine as claimed in claim 4, wherein: the other end of the rotor (2) is inserted into the rear bearing box (5) and then is connected with the inner ring of the second thrust support bearing (7).
6. A 60MW single reheat reaction air turbine as claimed in claim 1 wherein: the rear bearing box (5) is welded and fixed with the inner wall of the exhaust cylinder (3) integrally.
7. A 60MW single reheat reaction air turbine as claimed in claim 1 wherein: the air inlet (10) adopts a 2x 180-degree tangential air inlet structure.
8. A 60MW single reheat reaction air turbine as claimed in claim 1 wherein: the front bearing box (4) and the rear bearing box (5) are both arranged on a base frame of the air turbine unit through the base frame.
9. A 60MW single reheat reaction air turbine as claimed in claim 8, wherein: the front bearing box (4) and the rear bearing box (5) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223346293.8U CN218844396U (en) | 2022-12-08 | 2022-12-08 | 60MW single-reheat reaction type air turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223346293.8U CN218844396U (en) | 2022-12-08 | 2022-12-08 | 60MW single-reheat reaction type air turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218844396U true CN218844396U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223346293.8U Active CN218844396U (en) | 2022-12-08 | 2022-12-08 | 60MW single-reheat reaction type air turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218844396U (en) |
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- 2022-12-08 CN CN202223346293.8U patent/CN218844396U/en active Active
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