CN217270341U - 10MW triple reheat reaction type air turbine - Google Patents
10MW triple reheat reaction type air turbine Download PDFInfo
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- CN217270341U CN217270341U CN202220653526.XU CN202220653526U CN217270341U CN 217270341 U CN217270341 U CN 217270341U CN 202220653526 U CN202220653526 U CN 202220653526U CN 217270341 U CN217270341 U CN 217270341U
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Abstract
The utility model provides a 10MW triple reheat reaction type air turbine, the utility model relates to an air turbine structure, the utility model discloses in order to solve the problem that the air turbine reheat number of times is few under the equal parameter, the design structure is unreasonable, the system efficiency is low, start the operation inflexible, it includes high rotational speed module, conventional rotational speed module, gearbox, No. 1 turbine air inlet regulating valve, No. 2 turbine intake pipe, No. 3 turbine intake pipe and No. 4 turbine intake pipe; the high-rotation-speed module comprises a No. 1 bearing box, a No. 1 turbine cylinder, a No. 2 bearing box and a high-rotation-speed rotor, and the conventional rotation-speed module comprises a No. 3 bearing box, a No. 2 turbine cylinder, a No. 3 turbine cylinder, a No. 4 bearing box and a conventional rotation-speed rotor; the high-rotation-speed rotor is arranged in the No. 1 bearing box, the No. 1 turbine cylinder and the No. 2 bearing box; the conventional rotating speed rotor is arranged in a No. 3 bearing box, a No. 2 turbine cylinder, a No. 3 turbine cylinder, a No. 4 turbine cylinder and a No. 4 bearing box; the utility model belongs to the turbine design field.
Description
Technical Field
The utility model relates to an air turbine structure, concretely relates to 10MW cubic reheat reaction type air turbine belongs to the turbine design field.
Background
Compressed air energy storage is a novel energy storage technology and is in a vigorous development stage, and an air turbine is an important device of a compressed air energy storage system. At present, compressed air energy storage is in a project explosion window period, the existing air turbine equipment cannot meet the requirement of a large number of reheating times of a project, and an air turbine which is large in reheating times, reasonable in design structure, high in system efficiency and flexible in starting and running is urgently needed to be developed and is suitable for the development of a compressed air energy storage project.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve under the equal parameter air turbine reheat number of times few, project organization unreasonable, system inefficiency, start operation inflexible problem, and then provide a 10MW cubic reheat reaction type air turbine.
The technical problem is solved by the following scheme:
the device comprises a high-rotation-speed module, a conventional rotation-speed module, a gearbox, a No. 1 turbine air inlet regulating valve, a No. 2 turbine air inlet pipe, a No. 3 turbine air inlet pipe and a No. 4 turbine air inlet pipe; the high-rotation-speed module comprises a No. 1 bearing box, a No. 1 turbine cylinder, a No. 2 bearing box and a high-rotation-speed rotor, and the conventional rotation-speed module comprises a No. 3 bearing box, a No. 2 turbine cylinder, a No. 3 turbine cylinder, a No. 4 bearing box and a conventional rotation-speed rotor;
the No. 1 bearing box is arranged close to the air inlet side of the No. 1 turbine cylinder, the No. 2 bearing box is arranged close to the air outlet side of the No. 1 turbine cylinder, and the high-rotation-speed rotor is arranged inside the No. 1 bearing box, the No. 1 turbine cylinder and the No. 2 bearing box;
the No. 3 bearing box is arranged close to the exhaust side of the No. 2 turbine cylinder, the No. 4 bearing box is arranged close to the exhaust side of the No. 4 turbine cylinder, and the conventional rotating speed rotor is arranged inside the No. 3 bearing box, the No. 2 turbine cylinder, the No. 3 turbine cylinder, the No. 4 turbine cylinder and the No. 4 bearing box; and the high-rotation-speed rotor is connected with the conventional-rotation-speed rotor through a gearbox, the steam outlet end of the No. 1 turbine air inlet regulating valve is connected with the No. 1 turbine cylinder, the steam inlet end of the No. 1 turbine air inlet regulating valve is connected with a system heat exchanger, the No. 2 turbine air inlet pipe is connected with the No. 2 turbine cylinder, the No. 3 turbine air inlet pipe is connected with the No. 3 turbine cylinder, and the No. 4 turbine air inlet pipe is connected with the No. 4 turbine cylinder.
Compared with the prior art, the utility model the beneficial effect who contains is:
1. the unit of this application is applicable to air working medium, can be used to compressed air energy storage project, and current unit of same grade power only is applicable to other working mediums such as steam, can not be used to compressed air energy storage project.
2. The unit of this application has the cubic and reheats, sets up 4 sections turbines altogether, can satisfy the requirement of current compressed air energy storage project to air turbine number of times of reheating.
3. The utility model provides a unit adopts two rotational speed design techniques, adopts high rotational speed design at the high-pressure part, adopts conventional rotational speed design at the low pressure part, can make the through-flow blade geometric dimensions of each section turbine reasonable most, aerodynamic efficiency is best, and whole generating efficiency is higher.
4. This application unit adopts the all-round regulation technique that admits air, compares with current nozzle regulation technique, can reduce admission throttle pressure loss, improves the whole efficiency of unit.
5. The unit of the application adopts a reaction type through-flow design technology, and compared with the existing impulse type technology, the through-flow efficiency of each turbine can be improved by more than 2%.
6. Each section of turbine of the unit is of a single-layer cylinder structure, the temperature characteristics of the working environment of the unit are adapted, the strength of a cylinder body is good, the rigidity is good, the thermal stress is small, and the requirements of quick start and frequent start and stop of the unit are adapted.
Drawings
Fig. 1 is a schematic longitudinal sectional view of the high speed module of the present application.
Fig. 2 is a schematic longitudinal sectional view of a conventional rotational speed die of the present application.
FIG. 3 is a front view of an air turbine according to the present application.
FIG. 4 is a top view of an air turbine according to the present application.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 4, and the 10MW triple reheat reaction type air turbine comprises a high rotation speed module, a conventional rotation speed module, a gearbox 11, a number 1 turbine air inlet regulating valve 12, a number 2 turbine air inlet pipe 13, a number 3 turbine air inlet pipe 14 and a number 4 turbine air inlet pipe 15; the high-rotation-speed module comprises a No. 1 bearing box 1, a No. 1 turbine cylinder 5, a No. 2 bearing box 2 and a high-rotation-speed rotor 9, and the conventional rotation-speed module comprises a No. 3 bearing box 3, a No. 2 turbine cylinder 6, a No. 3 turbine cylinder 7, a No. 4 turbine cylinder 8, a No. 4 bearing box 4 and a conventional rotation-speed rotor 10;
the No. 1 bearing box 1 is arranged close to the air inlet side of the No. 1 turbine cylinder 5, the No. 2 bearing box 2 is arranged close to the air outlet side of the No. 1 turbine cylinder 5, and the high-rotation-speed rotor 9 is arranged inside the No. 1 bearing box 1, the No. 1 turbine cylinder 5 and the No. 2 bearing box 2;
the No. 3 bearing box 3 is arranged close to the exhaust side of the No. 2 turbine cylinder 6, the No. 4 bearing box 4 is arranged close to the exhaust side of the No. 4 turbine cylinder 8, and the conventional rotating speed rotor 10 is arranged in the No. 3 bearing box 3, the No. 2 turbine cylinder 6, the No. 3 turbine cylinder 7, the No. 4 turbine cylinder 8 and the No. 4 bearing box 4; and the high-rotation-speed rotor 9 is connected with the conventional-rotation-speed rotor 10 through a gearbox 11, the steam outlet end of a No. 1 turbine air inlet regulating valve 12 is connected with a No. 1 turbine cylinder 5, the steam inlet end of the No. 1 turbine air inlet regulating valve 12 is connected with a system heat exchanger, a No. 2 turbine air inlet pipe 13 is connected with a No. 2 turbine cylinder 6, a No. 3 turbine air inlet pipe 14 is connected with a No. 3 turbine cylinder 7, and a No. 4 turbine air inlet pipe 15 is connected with a No. 4 turbine cylinder 8.
The turbine has a triple reheating function and is designed into 4 sections, namely a No. 1 turbine cylinder 5, a No. 2 turbine cylinder 6, a No. 3 turbine cylinder 7 and a No. 4 turbine cylinder 8. In the embodiment, enough reheating times can meet the technical requirements of the current compressed air energy storage project on the air turbine. By adopting a full-cycle air inlet adjusting technology, steam enters the No. 1 turbine cylinder 5 through the No. 1 turbine air inlet adjusting valve 12 to do work through flow. Compared with the nozzle steam inlet, the steam inlet throttling pressure loss can be reduced, and the overall efficiency of the unit is improved.
The second embodiment is as follows: the embodiment is described by combining fig. 1-fig. 4, the whole turbine is designed in a double-rotating-speed mode, the rotating speed of the high-rotating-speed rotor 9 is 9200r/min, the rotating speed of the conventional-rotating-speed rotor 10 is 3000r/mn, the rotating speed of the high-rotating-speed rotor 9 is reduced to 3000r/min through the gearbox 11, and then the high-rotating-speed rotor is connected with the conventional-rotating-speed rotor 10, and the whole output rotating speed of the turbine is 3000 r/min. Other components and connection modes are the same as those of the first embodiment.
In the embodiment, the reasonable rotating speed is selected, so that the through-flow blades of each section of turbine have the most reasonable geometric size, the optimal pneumatic efficiency and higher overall power generation efficiency.
The third concrete implementation mode: the embodiment is described with reference to fig. 1 to 4, and the 10MW triple reheat reaction type air turbine further comprises 24 stages of small enthalpy drop blades, wherein 7 stages of blades are installed inside a turbine cylinder 5 No. 1, 7 stages of blades are installed inside a turbine cylinder 6 No. 2, 6 stages of blades are installed inside a turbine cylinder 7 No. 3, and 4 stages of blades are installed inside a turbine cylinder 8 No. 4. Other components and connection modes are the same as those of the first embodiment.
The embodiment adopts a multi-stage small enthalpy drop design technology, the number of stages of the blades of the unit is large, the enthalpy drop is small, the reheating efficiency is high, and the overall efficiency of the unit can be fundamentally improved.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 to 4, and the 10MW triple reheat reaction air turbine according to the embodiment is provided with a thrust bearing on a conventional speed rotor 10, and a high speed rotor 9 and the conventional speed rotor 10 are connected by a diaphragm coupling to absorb the rotor differential expansion. The gearbox 11 adopts a single dead point design, the absolute dead point of a high rotating speed module is designed at the No. 2 bearing box 2, and the absolute dead point of a conventional rotating speed module is designed at the No. 3 bearing box 3. Other components and connection modes are the same as those of the first embodiment.
The fifth concrete implementation mode: the embodiment is described with reference to fig. 1, and according to the 10MW triple reheat reaction type air turbine, a bearing box 1 is supported on a base frame by adopting a floor structure, an adjusting end of a turbine cylinder 5 1 is supported on the bearing box 1 through a lower cat's claw, and the cat's claw is in sliding fit with the bearing box 1. Other components and connection modes are the same as those of the first embodiment.
The sixth specific implementation mode: the embodiment is described with reference to fig. 1 to fig. 4, in the embodiment, a 10MW triple reheat reaction type air turbine, a turbine intake regulating valve 12 No. 1 is directly connected with a turbine cylinder 5 No. 1, a turbine intake pipe 13 No. 2 is directly connected with a turbine cylinder 6 No. 2, a turbine intake pipe 14 No. 3 is directly connected with a turbine cylinder 7 No. 3, and a turbine intake pipe 15 No. 4 is directly connected with a turbine cylinder 8 No. 4. This embodiment compares with the current mode of connecting through the air duct and has reduced the admission loss, and unit efficiency is higher. The unit adopts the design of valve direct connection, and the hot-air after coming out by heater and reheater gets into No. 1 turbine cylinder 5 through No. 1 turbine air inlet governing valve 12, controls the air intake flow of whole turbine through No. 1 turbine air inlet governing valve 12. Other components and connection modes are the same as those of the first embodiment.
The seventh embodiment: the embodiment is described with reference to fig. 1 to 4, the 10MW triple reheat reaction type air turbine is integrally cast with the turbine cylinder 2, the turbine cylinder 3 and the turbine cylinder 6, and the turbine cylinder 4 and the turbine cylinder 6 and the turbine cylinder 3 7 are integrally cast and designed separately from each other. Other components and connection modes are the same as those of the first embodiment.
The specific implementation mode is eight: in the present embodiment, which will be described with reference to fig. 1 to 4, a 10MW triple reheat reaction air turbine according to the present embodiment is provided with a number 3 turbine inlet pipe 14 provided on one side of a conventional rotation speed rotor 10, and a number 1 turbine inlet regulating valve 12, a number 2 turbine inlet pipe 13, and a number 4 turbine inlet pipe 15 provided on the other side of the conventional rotation speed rotor 10. Other components and connection modes are the same as those of the first embodiment.
Principle of operation
According to the application, the rotor is pushed to rotate to do work through expansion of high-temperature and high-pressure air, pressure potential energy and heat energy of the air are converted into mechanical energy of the turbine, then the turbine drives the generator to generate electricity, and the mechanical energy is converted into electric energy.
At first connect the equipment with each part, the utility model discloses move according to following order at the during operation air, the air that comes from the heat exchanger loops through 1 number turbine air inlet regulating valve 12 and gets into No. 1 turbine cylinder 5, gets into No. 2 turbine cylinders 6 doing work through the reheater after No. 1 turbine cylinder 5 does work, then gets into No. 3 turbine cylinders 7 doing work through the reheater, gets into No. 4 turbine cylinders 8 doing work through the reheater at last, done through No. 4 turbine cylinders 8 evacuation after doing work, accomplish whole working process.
The utility model provides a 10MW triple reheat reaction type air turbine, long-term operation admission parameter are 10.0MPa 230 ℃, and the highest operational parameter is 14.0MPa 450 ℃, and No. 1 turbine air inlet regulating valve 12 participates in load adjustment in real time. By adopting the technologies of multi-stage small enthalpy drop blades, full-period air intake adjustment and the like, the unit efficiency can be improved by 3.6 percent compared with the unit under the condition of the same parameters. The turbine body adopts two rotational speeds, individual layer jar structure, and the unit has efficient, adapts to quick start and frequently opens the advantage of opening and close, and it is reasonable to wholly arrange scheme shafting length, under the prerequisite that the assurance unit has high cycle efficiency, high security, furthest's shortening unit length reduces unit area, practices thrift the space, reduces the power plant construction cost.
Claims (8)
1. A10 MW triple reheat reaction air turbine, its characterized in that: the device comprises a high-rotation-speed module, a conventional rotation-speed module, a gearbox (11), a No. 1 turbine air inlet regulating valve (12), a No. 2 turbine air inlet pipe (13), a No. 3 turbine air inlet pipe (14) and a No. 4 turbine air inlet pipe (15); the high-rotation-speed module comprises a No. 1 bearing box (1), a No. 1 turbine cylinder (5), a No. 2 bearing box (2) and a high-rotation-speed rotor (9), and the conventional rotation-speed module comprises a No. 3 bearing box (3), a No. 2 turbine cylinder (6), a No. 3 turbine cylinder (7), a No. 4 turbine cylinder (8), a No. 4 bearing box (4) and a conventional rotation-speed rotor (10);
the bearing box 1 is arranged close to the air inlet side of the turbine cylinder 1 (5), the bearing box 2 is arranged close to the air outlet side of the turbine cylinder 1 (5), and the high-rotation-speed rotor 9 is arranged in the bearing box 1, the turbine cylinder 1 (5) and the bearing box 2;
the No. 3 bearing box (3) is arranged close to the exhaust side of the No. 2 turbine cylinder (6), the No. 4 bearing box (4) is arranged close to the exhaust side of the No. 4 turbine cylinder (8), and the conventional rotating speed rotor (10) is arranged inside the No. 3 bearing box (3), the No. 2 turbine cylinder (6), the No. 3 turbine cylinder (7), the No. 4 turbine cylinder (8) and the No. 4 bearing box (4); and the high-rotation-speed rotor (9) is connected with the conventional-rotation-speed rotor (10) through a gearbox (11), the steam outlet end of a No. 1 turbine air inlet regulating valve (12) is connected with a No. 1 turbine cylinder (5), the steam inlet end of the No. 1 turbine air inlet regulating valve (12) is connected with a system heat exchanger, a No. 2 turbine air inlet pipe (13) is connected with a No. 2 turbine cylinder (6), a No. 3 turbine air inlet pipe (14) is connected with a No. 3 turbine cylinder (7), and a No. 4 turbine air inlet pipe (15) is connected with a No. 4 turbine cylinder (8).
2. A 10MW triple reheat reaction air turbine as claimed in claim 1, wherein: the whole turbine is designed with double rotating speeds, the rotating speed of a high-rotating-speed rotor (9) is 9200r/min, the rotating speed of a conventional-rotating-speed rotor (10) is 3000r/mn, the rotating speed of the high-rotating-speed rotor (9) is reduced to 3000r/min through a gearbox (11), then the high-rotating-speed rotor is connected with the conventional-rotating-speed rotor (10), and the whole output rotating speed of the turbine is 3000 r/min.
3. A 10MW triple reheat reaction air turbine as claimed in claim 1, wherein: it still includes 24 grades of little enthalpy drop blades, and 7 grades of blades are installed inside No. 1 turbo cylinder (5), and 7 grades of blades are installed inside No. 2 turbo cylinder (6), and 6 grades of blades are installed inside No. 3 turbo cylinder (7), and 4 grades of blades are installed inside No. 4 turbo cylinder (8).
4. A 10MW triple reheat reaction air turbine as claimed in claim 1, wherein: the conventional rotating speed rotor (10) is provided with a thrust bearing, and the high rotating speed rotor (9) and the conventional rotating speed rotor (10) are connected through a diaphragm coupler to absorb the expansion difference of the rotors.
5. A 10MW triple reheat reaction air turbine as claimed in claim 1, wherein: no. 1 bearing box (1) adopts the structure of falling to the ground to support on the bed frame, and No. 1 turbine cylinder (5) are transferred the end and are supported on No. 1 bearing box (1) through lower cat claw, cat claw and No. 1 bearing box (1) sliding fit.
6. A 10MW triple reheat reaction air turbine as claimed in claim 1, wherein: no. 1 turbine air inlet regulating valve (12) is directly connected with No. 1 turbine cylinder (5), No. 2 turbine air inlet pipe (13) is directly connected with No. 2 turbine cylinder (6), No. 3 turbine air inlet pipe (14) is directly connected with No. 3 turbine cylinder (7), and No. 4 turbine air inlet pipe (15) is directly connected with No. 4 turbine cylinder (8).
7. A 10MW triple reheat reaction air turbine as claimed in claim 1, wherein: no. 2 turbo cylinder (6) and No. 3 turbo cylinder (7) are cast integrally, and No. 2 turbo cylinder (6) and No. 3 turbo cylinder (7) cast integrally and No. 4 turbo cylinder (8) are designed for the components of a whole that can function independently.
8. A 10MW triple reheat reaction air turbine as claimed in claim 1, wherein: a No. 3 turbine air inlet pipe (14) is arranged on one side of a rotor (10) with a conventional rotating speed, and a No. 1 turbine air inlet regulating valve (12), a No. 2 turbine air inlet pipe (13) and a No. 4 turbine air inlet pipe (15) are arranged on the other side of the rotor (10) with the conventional rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220653526.XU CN217270341U (en) | 2022-03-24 | 2022-03-24 | 10MW triple reheat reaction type air turbine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220653526.XU CN217270341U (en) | 2022-03-24 | 2022-03-24 | 10MW triple reheat reaction type air turbine |
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| CN217270341U true CN217270341U (en) | 2022-08-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704332A (en) * | 2022-03-24 | 2022-07-05 | 哈尔滨汽轮机厂有限责任公司 | 10MW triple reheat reaction type air turbine |
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2022
- 2022-03-24 CN CN202220653526.XU patent/CN217270341U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704332A (en) * | 2022-03-24 | 2022-07-05 | 哈尔滨汽轮机厂有限责任公司 | 10MW triple reheat reaction type air turbine |
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