CN103422914A - Systems and methods for adjusting clearances in turbines - Google Patents
Systems and methods for adjusting clearances in turbines Download PDFInfo
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- CN103422914A CN103422914A CN2013101812191A CN201310181219A CN103422914A CN 103422914 A CN103422914 A CN 103422914A CN 2013101812191 A CN2013101812191 A CN 2013101812191A CN 201310181219 A CN201310181219 A CN 201310181219A CN 103422914 A CN103422914 A CN 103422914A
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- turbine
- turbine shroud
- thermoelectric element
- shroud
- gap
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
- F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
- F01D11/20—Actively adjusting tip-clearance
- F01D11/24—Actively adjusting tip-clearance by selectively cooling-heating stator or rotor components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/24—Rotors for turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/40—Type of control system
- F05D2270/44—Type of control system active, predictive, or anticipative
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Embodiments of the invention can provide systems and methods for adjusting clearances (108) in a turbine (102). According to one embodiment, there is disclosed a turbine system. The system may include one or more turbine blades (104), a turbine casing (106) encompassing the one or more turbine blades (104), a thermoelectric element (110) disposed at least partially about the turbine casing (106), a cooling system (307) in communication with the thermoelectric element (110), and a controller (112) in communication with the cooling system and the thermoelectric element. The controller (112) may be operable to control the expansion or contraction of the turbine casing (106) by heating or cooling at least a portion of the turbine casing (106) with the thermoelectric element (110) and by adjusting the cooling system (307) such that a clearance (108) between the one or more turbine blades (104) and the turbine casing (106) is adjusted.
Description
The cross reference of related application
The application is the U.S. Patent application No. 13/302 that is authorized to be U. S. Patent submitted on November 22nd, 2011,372 part continuation application, and the application requires the preference of No. 13/302,372, and this application is combined in herein by reference and integrally.
Technical field
The application's embodiment relates generally to turbine, and more specifically, relates to the system and method in the gap for regulating turbine.
Background technique
Due to the hot state of turbine, during the start-up and operation of turbine, turbine blade and turbine shroud are inflatable or shrink.Therefore, due to expansion and the contraction of turbine blade and turbine shroud, the gap between turbine blade and turbine shroud can change.Generally speaking, the gap between turbine blade and turbine shroud is less, and turbine is just higher in the efficiency of run duration.In addition, the gap between turbine blade and turbine shroud is larger, and the startup of turbine is just faster.
Summary of the invention
Some or all in above needs and/or problem all can be solved by some embodiment of the application.Disclosed embodiment can comprise a kind of system and method for the gap of regulating turbine.According to an embodiment, a kind of turbine system is disclosed.System can comprise one or more turbine blades, surrounds the turbine shroud of one or more turbine blades, at least in part around turbine shroud and the thermoelectric element arranged, the cooling system be communicated with thermoelectric element, and the controller of communicating by letter with thermoelectric element with cooling system.Controller can move by least a portion with thermoelectric element heating or cooling turbine housing, and, by regulating cooling system, controls expansion or the contraction of turbine shroud, makes the gap between one or more turbine blades and turbine shroud adjusted.
According to another embodiment of the application, a kind of method of regulating the gap in turbine is disclosed.Turbine can comprise the turbine shroud that surrounds one or more turbine blades.Method can comprise locating one or more thermoelectric elements around turbine shroud at least in part, and the cooling system be communicated with one or more thermoelectric elements is provided, and controls the voltage that leads to one or more thermoelectric elements, and the fluid of Controlled cooling system stream.
In addition, another embodiment according to the application, disclose another turbine system.This system can comprise one or more turbine blades, surrounds the turbine shroud of one or more turbine blades, at least in part around turbine shroud and at least one thermoelectric element arranged, the cooling system be communicated with thermoelectric element, and the controller of communicating by letter with at least one thermoelectric element with cooling system.Controller can comprise computer processor and the storage of communicating by letter with computer processor, storage can move to store computer executable instructions, computer executable instructions can move by least a portion with thermoelectric element heating or cooling turbine housing, and by regulating cooling system, control expansion or the contraction of turbine shroud, make the gap between one or more turbine blades and turbine shroud adjusted.
A kind of turbine system comprises:
One or more turbine blades;
Surround the turbine shroud of described one or more turbine blades;
The thermoelectric element arranged around described turbine shroud at least in part;
The cooling system be communicated with described thermoelectric element; And
The controller of communicating by letter with described thermoelectric element with described cooling system, described controller can move by least a portion with described thermoelectric element heating or cooling described turbine shroud, and by regulating described cooling system, control expansion or the contraction of described turbine shroud, wherein, the gap between described one or more turbine blade and described turbine shroud is adjusted.
In another embodiment, described thermoelectric element comprises and is arranged on cold peltier element between heavy and heat sink, wherein, described peltier element is applied to voltage, to control described cold heavy and described heat transmission between heat sink, and wherein, the described cold heavy and described heat sink polarity that depends on the voltage that described peltier element is applied.
In another embodiment, described cooling system comprises one or more in ventilation system, refrigerant cools loop, open system or closed-loop system.
In another embodiment, the described cold heavy and described heat sink ceramic plate that comprises.
In another embodiment, the described heat sink metal foam that comprises.
In another embodiment, described metal foam is one or more in copper foam, aluminum foam or graphite foam.
In another embodiment, reduce the gap between described one or more turbine blade and described turbine shroud, to improve the efficiency of run duration.
In another embodiment, increase the gap between described one or more turbine blade and described turbine shroud, to improve efficiency and the speed started.
In another embodiment, described thermoelectric element is around at least a portion of described turbine shroud along circumferentially being arranged to and described one or more turbine blade Cheng Shunlie.
A kind of method for the gap of regulating turbine, described turbine comprises the turbine shroud that surrounds one or more turbine blades, described method comprises:
Locate one or more thermoelectric elements around described turbine shroud at least in part;
The cooling system be communicated with described one or more thermoelectric elements is provided;
Control the voltage that leads to described one or more thermoelectric elements; And
Control the fluid stream of described cooling system.
In another embodiment, further comprise the gap of regulating between described one or more turbine blades and described turbine shroud.
According to following detailed description, accompanying drawing and claims, the application's other embodiment, aspect and feature will become apparent those skilled in the art.
The accompanying drawing explanation
Now with reference to accompanying drawing, may not draw in proportion accompanying drawing, and wherein:
Fig. 1 shows the schematic diagram according to embodiment's example turbine system, and the example turbine system comprises the block diagram of the computer environment in the gap for regulating turbine.
Fig. 2 shows the schematic diagram according to the details of embodiment's example thermoelectric element.
Fig. 3 shows the schematic diagram according to embodiment's example turbine system.
Fig. 4 show according to embodiment, for the flow chart of the details of the exemplary method in the gap of regulating turbine.
Fig. 5 show according to embodiment, for the schematic diagram of the example system in the gap of regulating turbine.
Embodiment
With reference to accompanying drawing, now will hereinafter the application's illustrative embodiment be described more all sidedly, shown in the accompanying drawings some embodiments of the application, but not all embodiment.The application can be presented as many different forms, and the application should be interpreted as to the embodiment who is limited to this paper elaboration.On the contrary, provide these embodiments, make the disclosure will meet applicable legal requiremnt.Like numerals will is indicated like in all figure.
Inter alia, illustrative embodiment relates to the system and method in the gap for regulating turbine.Some illustrative embodiment can relate to thermoelectric element, this thermoelectric element is around at least a portion of turbine shroud and arrange, make hub volumetric expansion or contraction with at least a portion whirlpool by heating or cooling turbine housing, thereby regulate the gap between one or more turbine blades and turbine shroud.
In certain embodiments, thermoelectric element can comprise amber ear note (Peltier) element be arranged between cold heavy (cold sink, it is contrary with heat sink effect) and heat sink (heat sink).Can apply voltage to peltier element, to control cold heat transmission between heavy and heat sink.The cold heavy and heat sink polarity that can be depending on the voltage that peltier element is applied.In some respects, the cold heavy and heat sink ceramic plate that comprises.In other side, heat sink can the connection with ventilation system.In other other side, thermoelectric element can circumferentially be arranged to and one or more turbine blade Cheng Shunlie around at least a portion edge of turbine shroud.
Some embodiment can provide technical solution to regulate the gap between one or more turbine blades and turbine shroud.In one embodiment, can reduce the gap between one or more turbine blades and turbine shroud, to improve the efficiency of run duration.After this manner, but the cooling turbine housing, so that it shrinks around one or more turbine blades.In another embodiment, can increase the gap between one or more turbine blades and turbine shroud, to improve the efficiency between the starting period, and improve the speed started.After this manner, can heat turbine shroud, so that it expands around one or more turbine blades, expand between the starting period to allow one or more turbine blades.In yet another embodiment, can regulate the gap between one or more turbine blades and turbine shroud, to improve the efficiency of transition period.
Fig. 1 provides example turbine system 100, and it shows the details in the gap for regulating turbine 102.Turbine 102 can comprise one or more turbine blades 104 (or rotor).Turbine 102 also can comprise turbine shroud 106 (or stator), makes turbine shroud 106 surround one or more turbine blades 104.One or more turbine blades 104 rotate around the central axis 109 of turbine 102 substantially.Turbine 102 can comprise gap 108 between the inside radius of the far-end of one or more turbine blades 104 and turbine shroud 106.
Turbine system 100 can comprise at least in part around turbine shroud 106 and the thermoelectric element 110 that arranges.In certain embodiments, thermoelectric element 110 can be arranged to around turbine shroud and 104 one-tenth suitable row of turbine blade at least in part.Thermoelectric element 110 can heat or the part of the cooling turbine shroud 106 be communicated with thermoelectric element 110.Thermoelectric element 110 heating and cooling turbine shrouds 106 can make respectively at least a portion of turbine shroud 106 expand or shrink.The expansion of turbine shroud 106 and contraction can be regulated the gap 108 between one or more turbine blades 104 and turbine shroud 106.One or more thermosensors can be arranged on turbine shroud, one or more turbine blade or around them, and/or on turbine or on any other position around turbine, with monitoring turbine system 100.
In certain embodiments, thermoelectric element 110 can comprise for from heat sink 111 of thermoelectric element 110 heat radiation.The heating of one or more thermoelectric elements 110 or cooling voltage and the polarity that is received from power source 132 that depends on.For example, heat sink 111 can be heat sink or cold sinking, and this depends on the polarity of the power source received by thermoelectric element 110.Therefore, thermoelectric element is in heating mode or refrigerating mode, and this depends on the polarity of power source 132.
Still with reference to Fig. 1, in some illustrative embodiment, turbine system 100 can comprise for regulating the control device 112 in the gap between one or more turbine blades 104 and turbine shroud 106.Control device 112 can be constructed to be permeable to realize disclosed feature and appended method (such as (but not limited to) reference Fig. 4 described those) any suitable computing device.The unrestriced mode with example, suitable computing device can comprise personal computer (PC), server, server zone, records center, or can store and carry out whole or a part of any other device of disclosed feature.
In an illustrative configuration, control device 112 at least comprises storage 114 and one or more processing unit (or processor (one or more)) 116.Processor (one or more) 116 can be embodied as hardware, software, firmware or their combination as suitable.The software of processor (one or more) 116 or firmware realize comprising with any suitable programming language, write, in order to the computer of carrying out described various functions, can carry out or the executable instruction of machine.
Storage 114 can be stored and can be loaded on processor (one or more) 116 and the programming instruction that can carry out on processor (one or more) 116, and in the term of execution data that produce of these programs.The configuration and the type that depend on control device 112, storage 114 can be (such as random access memory (RAM)) and/or non-volatile (such as ROM (read-only memory) (ROM), flash memory etc.) of loss tendency.Computing device or server also can comprise extra removable memory 118 and/or non-removable formula memory 120, include, but is not limited to magnetic storage device, CD and/or tape memory.Magnetic disk driver and the computer-readable medium that is associated thereof can provide non-volatile memories to computer-readable instruction, data structure, program module with for other data of computing device.In some implementations, storage 114 can comprise the storage of number of different types, such as static RAM (SRAM), dynamic random access memory (DRAM) or ROM.
The example that storage 114, removable memory 118 and non-removable formula memory 120 are all computer-readable recording mediums.For example, computer-readable recording medium can comprise loss tendency and non-volatile, removable and the non-removable formula medium of implementing storage information (such as computer-readable instruction, data structure, program module or other data) with any method or technology.The example that storage 114, removable memory 118 and non-removable formula memory 120 are all computer-readable storage mediums.The computer-readable storage medium of the additional type that can exist, it can include, but is not limited to random access memory able to programme (PRAM), SRAM, DRAM, RAM, ROM, electronics erasable programmable read only memory (EEPROM), flash memory or other memory technology, compact disk ROM (read-only memory) (CD-ROM), digital versatile disc (DVD) or other optical memory, cassette, tape, disc storage or other magnetic memory apparatus, or can be used to the information of storage expectation and any other medium that can be accessed by server or other computing device.Above any combination should be also included within the scope of computer-readable medium.
Alternatively, computer-readable communication media can comprise other data of computer-readable instruction, program module or transmission in data-signal (such as carrier wave or other transmission thing).
Control device 112 also can comprise communication link fitting (one or more) 122, and communication link fitting 122 allows control device 112 to communicate by letter with other device on database, another computing device or server, user terminal and/or the network stored.Control device 112 also can comprise input device (one or more) 124 (such as keyboard, mouse, pen, speech input device, touch input device etc.), and output unit (one or more) 126, such as display device, loudspeaker, printer etc.
Forward in more detail the content of storage 114 to, storage 114 can comprise operation system 128, and, for realizing one or more application programs or the service of feature disclosed herein, it comprises gap module 130.Gap module 130 can be configured to by control heating or cooling expansion or the contraction of controlling turbine shroud 106 of at least a portion of turbine shrouds 106 via one or more thermoelectric elements 110, makes gap 108 between one or more turbine blades 104 and turbine shroud 106 due to the expansion of turbine shroud 106 or contraction and adjusted.Gap module 130 can be by controlling heating that voltage that one or more thermoelectric elements 110 receive from power source 132 and polarity controls one or more thermoelectric elements 110 or cooling.That is to say the heating of thermoelectric element 110 or coolingly depend on that it is received from the polarity of the voltage of power source 132.In certain embodiments, along with the power from power source 132 improves, the heating of turbine shroud 106 or cooling the raising.On the contrary, in other embodiments, along with the power from power source 132 reduces, the heating of turbine shroud 106 or cooling the reduction.
Can in the general linguistic context of the computer executable instructions (such as program module) of being carried out by one or more computers or other device, consider various instructions described herein, method and technology.Substantially, program module comprises for carrying out particular task or realizing routine, program, object, member, data structure of specific abstract data type etc.These program modules etc. can be implemented as source code, or can be such as at virtual machine or other, downloading and carry out in the Complied executing environment timely.Typically, functional combination or the distribution like that in various embodiments as desired of program module.The realization of these modules and technology can be stored on the computer-readable recording medium of some forms.
Only the mode with example provides the example controller device 112 shown in Fig. 1.Many other operating environments, system architecture and device configuration are feasible.Therefore, embodiment of the present disclosure should not be construed as and is limited to any specific operating environment, system architecture or device configuration.
Fig. 2 shows the schematic diagram of the details of example thermoelectric element 200.In certain embodiments, thermoelectric element 200 can comprise at least one peltier element, or can comprise the member that adopts or otherwise realize Peltier effect.For example, thermoelectric element 200 can comprise the semiconductor 202 that is mixed with the N-type foreign ion and the semiconductor 204 that is mixed with the p type impurity ion.The semiconductor element 202 and 204 that is mixed with N-type and P type can be joined together to form the electronic circuit of series connection and hot loop in parallel by conductor 206 and 208.Heat is transmitted substrate 210 and 212 can encase conductor 206 and 208 respectively.It is cold heavy or heat sink that heat transmission substrate 210 and 212 can be, and this depends on the polarity of thermoelectric element 200.
As known in amber ear note type thermoelectric element, thermoelectric element 200 applied to electric current 214 and be conducive to local heating in joining portion and/or conductor and/or cooling, because the energy difference of amber ear note type thermoelectric element can be transformed into heat or cold.Therefore, thermoelectric element 200 can be arranged to be heated in a position, and in another position, carries out coolingly, and vice versa.
It is cold heavy or heat sink that heat transmission substrate 210 and 212 can be, and this depends on the polarity of the voltage that thermoelectric element 200 is applied.For example, as described in Fig. 2, it is cold heavy that heat is transmitted substrate 212, and heat transmission substrate 210 is heat sink.In other embodiments, heat transmission substrate 212 can be heat sink, and heat transmission substrate 210 can be cold sinking.
Fig. 3 shows the schematic diagram of example turbine system 300.Turbine system 300 can comprise turbine 302.Turbine 302 can comprise turbine shroud 304.Turbine system 300 also can comprise at least in part around turbine shroud 304 and the thermoelectric element 306 that arranges.The part of thermoelectric element 306 heating or the cooling turbine shroud 304 be communicated with thermoelectric element 306.Thermoelectric element 306 heating and cooling turbine shrouds 304 can make respectively at least a portion of turbine shroud 304 expand or shrink.The expansion of turbine shroud 304 and contraction can be regulated the gap between one or more turbine blades and turbine shroud 304.Thermoelectric element 306 can be communicated with cooling system 307.In example embodiment, cooling system 307 can comprise ventilation system 308.For example, when in refrigerating mode, thermoelectric element 306 can comprise external heat sink part 111, as depicted in Figure 1.Heat sink part can make the heat dissipation passed out from turbine shroud 304 to surrounding environment.Ventilation system 308 can be by the thermal steering of dissipating from the heat sink part of thermoelectric element 306 to remote location, a long way off on position, recyclable or abandon heat.In another embodiment, cooling system 307 can comprise cooling circuit 310.For example, cooling system 308 can comprise the refrigerant cools loop be communicated with thermoelectric element 306.In some cases, the refrigerant cools loop can comprise water cooling loop (open loop or closed loop).Can use the freezing mixture of any type or quantity in cooling circuit 310.
Fig. 4 shows according to an embodiment of the invention, for the example flow diagram of the method 400 in the gap of regulating turbine.In one example, one or more modules of the illustrative control device 112 of Fig. 1 and/or illustrative control device 112 can be individually or are carried out the operation of described method 400 in the mode of combination.
In this specific implementation, method 400 can start from frame 402 places of Fig. 4, and wherein, method 400 can comprise at least in part locates one or more thermoelectric elements around turbine shroud.One or more thermoelectric elements can be positioned to and one or more turbine blade Cheng Shunlie, or one or more thermoelectric elements are positioned near one or more turbine blades.In addition, one or more thermoelectric elements can be positioned at around the whole periphery of turbine shroud or around the part of the periphery of turbine shroud.On turbine shroud or around turbine shroud, one or more thermoelectric elements can be positioned to any position, and locate one or more thermoelectric elements with any pattern.
In example embodiment, as depicted in Figure 5, thermoelectric element system 500 can comprise at least one peltier element 502, or can comprise the member that adopts or otherwise realize Peltier effect.It is cold heavy or heat sink that heat transmission substrate 504 and 506 can be, and this depends on the polarity of the voltage that thermoelectric element system 500 is applied.In example embodiment, heat is transmitted substrate 504 can comprise foam metal (such as for example, copper foam, aluminum foam or graphite foam), and heat is transmitted substrate 506 and can be comprised ceramic substrate (such as silicon etc.).In this embodiment, ceramic substrate 506 can be arranged to abut against 106 one-tenth of the turbine shrouds relation that reclines.Thermoelectric element system 500 can be configured to by controlling at least one peltier element 502, metal foam is heat sink 504, the heating of at least a portion of ceramic substrate 506 and 512 pairs of turbine shrouds 106 of cooling system or cooling, control expansion or the contraction of turbine shroud 106, make gap between one or more turbine blades and turbine shroud 106 due to the expansion of turbine shroud 106 or contraction and adjusted.Thermoelectric element system 500 can be by controlling voltage and the polarity received by least one peltier element 502, controls the heating of turbine shroud 106 or cooling.That is to say the heating of turbine shroud 106 or the cooling polarity that depends on the voltage that leads at least one peltier element 502.
Still with reference to Fig. 5, in example embodiment, controller 510 can with at least one peltier element 502 and cooling system 512, both communicate by letter.Useful hardware, software or their combination realize controller 510, to carry out function described herein.In the mode of example, controller 510 can be processor, ASIC, comparator, differential module or other hardware device.Equally, controller 510 can comprise software or other computer executable instructions that can be stored in storage and can be carried out by processor or other processor.In some cases, controller 510 can be similar to control device 112 discussed earlier.Controller 510 can make at least one peltier element 502 and the cooling system 512 can work in concert, to control expansion or the contraction of turbine shroud 106.For example, temperature transducer 508 can be monitored the temperature of turbine shroud 106.The temperature that depends on turbine shroud 106, controller 510 can be regulated the voltage that (for example, improve, reduce and/or reversion) leads at least one peltier element 502.In addition, depend on the temperature of turbine shroud 106, controller 510 can be regulated cooling system 512, for example, to improve or to reduce the amount that is directed into the heat sink air of metal foam 504 (ambient air), to improve or to reduce heat transmission.After this manner, controller 510 can be controlled at least one peltier element 502 and cooling system 512 simultaneously, to control expansion or the contraction of turbine shroud 106.
In example embodiment, thermoelectric element system 500 can be arranged in turbine compartment 514.Turbine compartment 514 can completely or partially be enclosed in thermoelectric element system 500 wherein.Turbine compartment 514 can be in negative pressure, in order to prevent that fluid from therefrom leaking.After this manner, controller 510 can be communicated by letter with cooling system 512, to control the fluid stream in turbine compartment 514.For example, controller 510 can be communicated by letter with one or more stream valves or the air throttle of cooling system 512.In some cases, controller 510 can be handled one or more stream valves or the air throttle of cooling system 512, is guided to the heat sink fluid stream of metal foam 504 with adjusting, to improve or to reduce heat transmission.Therefore, by controller 510, cooling system 512 can with at least one peltier element 502 work in concert, and expansion or the contraction of controlling turbine shroud 106.
Demonstrative system and the method in the gap for regulating turbine have been described.The framework of those that some or all in these system and methods can (but needn't) show at least in part in the Fig. 1 such as top is realized.
Although used structure characteristic and/or the method embodiment that moved proprietary language description, it being understood that the disclosure is not necessarily limited to described specific features or action.On the contrary, open specific features and action are as the illustrative form that realizes embodiment.
Claims (10)
1. a turbine system (102) comprising:
One or more turbine blades (104);
Surround the turbine shroud (106) of described one or more turbine blade (104);
The thermoelectric element (110) arranged around described turbine shroud (106) at least in part;
The cooling system (307) be communicated with described thermoelectric element (110); And
The controller (112) of communicating by letter with described thermoelectric element (110) with described cooling system (307), described controller (112) can move by least a portion with described thermoelectric element (110) heating or cooling described turbine shroud (106), and by regulating described cooling system (307), control expansion or the contraction of described turbine shroud (106), wherein, the gap (108) between described one or more turbine blade (104) and described turbine shroud (106) is adjusted.
2. system according to claim 1, it is characterized in that, described thermoelectric element (110) comprises the peltier element (502) be arranged between cold heavy (210) and heat sink (212), wherein, described peltier element (502) is applied to voltage (132), to control the heat transmission between described cold heavy (210) and described heat sink (212), and wherein, described cold heavy (210) and described heat sink (212) depend on the polarity of the voltage that described peltier element (502) is applied.
3. system according to claim 1, it is characterized in that, described cooling system (307) comprises one or more in ventilation system (308), refrigerant cools loop (310), open system (310) or closed-loop system (310).
4. system according to claim 2, is characterized in that, described cold heavy (210) and described heat sink (212) comprise ceramic plate (506).
5. system according to claim 2, is characterized in that, described heat sink (212) comprise metal foam (504).
6. system according to claim 5, is characterized in that, described metal foam (504) is one or more in copper foam, aluminum foam or graphite foam.
7. system according to claim 1, is characterized in that, reduces the gap (108) between described one or more turbine blade (104) and described turbine shroud (106), to improve the efficiency of run duration.
8. system according to claim 1, is characterized in that, increases the gap (108) between described one or more turbine blade (104) and described turbine shroud (106), to improve efficiency and the speed started.
9. system according to claim 1, is characterized in that, described thermoelectric element (110) circumferentially is arranged to and described one or more turbine blades (104) Cheng Shunlie around at least a portion edge of described turbine shroud (106).
10. the method for the gap (108) of regulating turbine (102), described turbine (102) comprises the turbine shroud (106) that surrounds one or more turbine blades (104), described method comprises:
Locate one or more thermoelectric elements (110) around described turbine shroud (106) at least in part;
The cooling system be communicated with described one or more thermoelectric elements (110) (307) is provided;
Control the voltage (132) that leads to described one or more thermoelectric elements (110); And
Control the fluid stream of described cooling system (307).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/473095 | 2012-05-16 | ||
| US13/473,095 US9151176B2 (en) | 2011-11-22 | 2012-05-16 | Systems and methods for adjusting clearances in turbines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103422914A true CN103422914A (en) | 2013-12-04 |
| CN103422914B CN103422914B (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310181219.1A Expired - Fee Related CN103422914B (en) | 2012-05-16 | 2013-05-16 | For regulating the system and method in the gap in turbine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2664746A3 (en) |
| JP (1) | JP6126453B2 (en) |
| CN (1) | CN103422914B (en) |
| RU (1) | RU2648196C2 (en) |
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| CN111279053A (en) * | 2017-10-27 | 2020-06-12 | 赛峰航空器发动机 | Retention device for cooling tube of turbine engine casing |
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| WO2013141937A1 (en) | 2011-12-30 | 2013-09-26 | Rolls-Royce North American Technologies, Inc. | Gas turbine engine tip clearance control |
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- 2013-05-13 JP JP2013100825A patent/JP6126453B2/en not_active Expired - Fee Related
- 2013-05-15 RU RU2013122075A patent/RU2648196C2/en active
- 2013-05-16 CN CN201310181219.1A patent/CN103422914B/en not_active Expired - Fee Related
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772596A (en) * | 2014-01-09 | 2015-07-15 | 通用电气公司 | System, method, and apparatus for locating and drilling closed holes of turbine component |
| CN104772596B (en) * | 2014-01-09 | 2019-02-19 | 通用电气公司 | For positioning and the system of the blind hole of drilling turbine components, method and apparatus |
| CN111279053A (en) * | 2017-10-27 | 2020-06-12 | 赛峰航空器发动机 | Retention device for cooling tube of turbine engine casing |
| CN111279053B (en) * | 2017-10-27 | 2022-07-12 | 赛峰航空器发动机 | Retention device for cooling tubes of a turbine engine casing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6126453B2 (en) | 2017-05-10 |
| JP2013238230A (en) | 2013-11-28 |
| CN103422914B (en) | 2016-07-06 |
| EP2664746A2 (en) | 2013-11-20 |
| EP2664746A3 (en) | 2014-04-23 |
| RU2013122075A (en) | 2014-11-20 |
| RU2648196C2 (en) | 2018-03-22 |
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