CN101765704A - Oil removal from a turbine of an organic rankine cycle (ORC) system - Google Patents
Oil removal from a turbine of an organic rankine cycle (ORC) system Download PDFInfo
- Publication number
- CN101765704A CN101765704A CN200780100057A CN200780100057A CN101765704A CN 101765704 A CN101765704 A CN 101765704A CN 200780100057 A CN200780100057 A CN 200780100057A CN 200780100057 A CN200780100057 A CN 200780100057A CN 101765704 A CN101765704 A CN 101765704A
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- China
- Prior art keywords
- refrigeration agent
- turbine engine
- oil
- orc
- vaporizer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/04—Using steam or condensate extracted or exhausted from steam engine plant for specific purposes other than heating
Abstract
A method and system for removing oil in an organic rankine cycle (ORC) system (10) is used to prevent failures in the ORC system (10), especially during startup. The ORC system (10) includes an evaporator, a turbine (18), a condenser and a pump, and is configured to circulate a refrigerant (22) through the ORC system (10). The oil-removal system is used to remove oil from certain areas of the turbine (18), and includes an eductor line (32) and an eductor system (20). The eductor line (32) is located upstream of the turbine (18) and configured to receive a portion of the refrigerant (22b) exiting the evaporator. The eductor line (32) delivers the refrigerant (22b) to an eductor system (20) configured to remove oil from inside the turbine (18) and deliver the oil to an oil sump (58).
Description
Technical field
The present invention relates to a kind of organic rankine cycle (ORC) system.More particularly, the present invention relates to a kind of improved method and system of the turbine engine oil removing from the ORC system.
Background technique
Rankine cycle system generally is used for generating.Rankine cycle system comprises vaporizer or the boiler that is used to evaporate moving fluid, and the steam that is used to receive from evaporator drier is used for the condenser of condensing steam to drive the turbine engine of generator, and pump or other device of fluid re-circulation to vaporizer that will be condensed.Moving fluid in the rankine cycle system is generally water, thereby turbine engine is driven by water vapor.The operation of organic rankine cycle (ORC) system is similar to traditional rankine cycle, but the ORC system uses organic fluid to replace water as moving fluid.
Oil can be in the ORC system, particularly the inside of turbine engine is lubricated.For example, oil provides lubricated for the bearing of turbine engine.In ORC system running, oil may move to the ORC system other do not need the zone of oil, as the peripheral region of the impeller of turbine engine.In the start-up course of ORC system, do not need may be difficult to the regional recovered oil of oil from these.Sometimes, these expendable oil can cause ORC system start-up fault.
Therefore need a kind of when ORC system start-up the improved method and system from the turbine engine oil removing.
Summary of the invention
A kind of oil system that removes that is used for organic rankine cycle (ORC) system, it prevents fault by the oil of removing turbine engine inside in the ORC system, the fault when especially preventing to start.Remove oil system and comprise the discharge pipe line that is positioned at the turbine engine upstream, it is configured to receive the part of the refrigeration agent of the vaporizer that leaves the ORC system.Discharge pipe line is sent to releasing system with refrigeration agent, this releasing system remove turbine engine the impeller peripheral region oil and oil carried oil-return groove.
Description of drawings
Fig. 1 is the schematic representation of organic rankine cycle (ORC) system, and this system comprises turbine engine and the releasing system that turbine engine is carried out oil removing.
Fig. 2 is the turbine engine among Fig. 1 and the schematic representation of releasing system.
Embodiment
Organic rankine cycle (ORC) system can be used for generating.Oil is used to the turbine engine inside of various parts, particularly ORC system to provide lubricated in the ORC internal system.But when ORC moves, oil may move to turbine engine other do not need the zone of oil, and in some cases, oil may to some parts be have destructive.In addition, when system is activated, if some zone of turbine engine for example impeller oil is arranged, these oil can cause the system failure.The present invention mainly disclose a kind of during ORC system start-up effectively from the method and system of turbine engine oil removing.
Fig. 1 is the schematic representation of ORC system 10, and this system comprises condenser 12, pump 14, vaporizer 16, turbine engine 18, and the releasing system 20 that is connected to turbine engine 18.Refrigeration agent 22 cycles through system 10, and in order to generating.Liquid refrigerant 22a from condenser 12 passes through pump 14, thereby pressure is increased.High pressure liquid refrigerant 22a enters vaporizer 16, and this vaporizer utilizes thermal source 24 to come vaporized refrigerant 22.Thermal source 24 can include but not limited to the used heat of any kind of, comprises fuel cell, miniature turbine, and Reciprocating engine, and the thermal source of other kinds such as solar energy, underground heat or waste gas.The refrigeration agent 22 that leaves vaporizer 16 is vapor refrigerant 22b, and then enters turbine engine 18 by turbine inlet valve 26.Vapor refrigerant 22b is used to drive turbine engine 18, thereby turbine engine 18 is thus for generator 28 provides power, thereby generator 28 produces electric power.Leave the return condensed device 12 of vapor refrigerant 22b of turbine engine 18, at this liquid refrigerant 22a that is condensed back.Radiator 30 is used to provide cooling water to condenser 12.
As shown in Figure 1, ORC system 10 also has by-pass valve 36 and by-pass line 38, and they can prevent the refrigeration agent 22b turbine engine 18 of flowing through between the starting period.Between 10 starting periods, turbine engine 18 is temporarily with the bypass mode operation in system, and this moment, turbine engine did not receive any refrigeration agent, so that turbine engine 18 reaches predetermined operating conditions (being the temperature and pressure condition).At this moment, flow through by-pass line 38 and be conducted through bypass opening 39 of refrigeration agent 22b so that the temperature of refrigeration agent 22b increases, and in turbine engine 18 internal simulation operating conditionss.After bypass opening 39, refrigeration agent 22b is directed to condenser 12.In some mode of execution, when turbine engine inlet valve 26 was opened, by-pass valve 36 cut out, and vice versa.
Fig. 2 is the part schematic representation of the ORC system 10 among Fig. 1, comprises turbine engine 18, releasing system 20, discharge pipe line 32, turbine engine inlet valve 26, generator 28, by-pass valve 36, and by-pass line 38.Turbine engine 18 has impeller 40, exhaust shell 42 and high pressure volute 44.(, therefore be referred to as " high pressure volute " because turbine engine 18 volute 44 when operation is in high pressure.But when system 10 and turbine engine 18 were in bypass mode between the starting period, volute 44 was in low pressure.) in the operation mode of turbine engine 18, vapor refrigerant 22b (the coming from evaporator drier 16) inlet valve 26 of flowing through enters high pressure volute 44, then by nozzle 46, thus transmit motive force to impeller 40 with the axle 48 in the driving gearbox 50.Gear 52 connects transmission shaft 48 to generator 28, and the energy of generator utilization axle generates electricity.Gear-box 50 also has bearing 54, oil groove 56 and oil pump 58.
By discharge pipe line 32 being arranged at the upstream of turbine engine inlet valve 26, when refrigeration agent 22 cycled through system 10, no matter turbine engine 18 is to be in which kind of pattern, discharge pipe line 32 can constantly be supplied refrigeration agent 22 to releasing system 20.Even turbine engine 18 is in bypass mode between the starting period and come the refrigeration agent 22 of from evaporator drier 16 to be transferred by by-pass line 36, refrigeration agent 22 also still flows to releasing system 20.
In other schemes of ORC system, discharge pipe line generally can be connected to turbine engine, thereby the cryogen source of releasing system can be carried by turbine engine.For example, discharge pipe line can be connected to the high pressure volute, the refrigeration agent of the high pressure volute of turbine engine thereby the releasing system utilization is flowed through.Yet in such scheme, releasing system only can move when the refrigeration agent that comes from evaporator drier is flowed through turbine engine.As above 1 explained with reference to the accompanying drawings, during system start-up, come the vapor refrigerant of from evaporator drier to be prevented from the turbine engine of flowing through.Refrigeration agent then the by-pass line of flowing through then flows to condenser.Therefore, when releasing system depends on refrigeration agent from turbine engine, under the bypass mode of turbine engine or start-up mode to turbine engine oil removing and infeasible.
But start-up mode may be the significant instant from impeller those zones (being high pressure volute and exhaust shell) oil removing on every side of turbine engine.If when turbine engine starts, there is oil in these zones, and some parts of turbine engine inside can be damaged.In addition, in ORC system run duration down periods particularly, the oil of turbine engine inside is transferred in exhaust shell and the high pressure volute usually.
And, because the discharge pipe line 32 of system 10 is positioned at the upstream of turbine engine inlet valve 26, and its direct refrigeration agent 22b that receives from evaporator drier 16, releasing system 20 can be removed the oil of turbine engine 18 under all operating modes of system 10.Discharge pipe line 32 receives the sub-fraction of the refrigeration agent 22 of from evaporator drier 16, thereby the operation and the efficiency of turbine engine 18 had small influence.For example, in one embodiment, come from evaporator drier 16 refrigeration agent 22 flow to pipeline 32 less than centesimal weight; In another preferred embodiment, the refrigerant flow direction pipeline 32 of about 0.2 weight percentage.Among the embodiment as shown in Figure 2, discharge pipe line 32 does not comprise valve, and this is because pipeline 32 is set to whenever the refrigeration agent 22 ORC system 10 that flows through promptly receives refrigeration agent 22.Will be appreciated that discharge pipe line 32 can comprise control valve.As shown in Figure 2, discharge pipe line 32 can have filter 60, and it is used for removing the particulate of refrigeration agent 22.
In the embodiment shown in Figure 2, releasing system 20 comprises first escaper 62 and second escaper 64, and they are as Venturi, and each all has the first mobile inlet and the second mobile inlet.In each escaper, come the high-pressure refrigerant of from evaporator drier 16 to flow through the first mobile inlet, produce enough suction with the liquid in the sucking-off turbine engine 18.
As shown in Figure 2,, will be appreciated that releasing system 20 can move under the situation that first escaper 62 is only arranged although releasing system 20 includes two escapers.Because discharge pipe line 32 is positioned at the upstream of turbine engine inlet valve 26, discharge pipe line 32 at any time all can transmit refrigeration agent to the first escaper 62.Therefore, first escaper 62 can be effectively from turbine engine 18 oil removings, particularly during turbine engine 18 startups.Compare with the sort of ORC system that can't move between the starting period because of the refrigeration agent thereby the releasing system that depend on from turbine engine, system 10 has significantly reduced the startup fault by the oil of removing in the exhaust shell 42 before turbine engine 18 starts.
Although second escaper 64 is not necessary, will be appreciated that, use second escaper 64, in conjunction with first escaper 62 and discharge pipe line 32, can further increase the validity of system 10 from turbine engine 18 oil removings.As mentioned above, oil may accumulate in exhaust shell 42 and the high pressure volute 44.Second escaper 64 can be from 44 oil removings of high pressure volute, and inner in case oil separates from vapor refrigerant at high pressure volute 44, oil generally accumulates in the high pressure volute 44.Because the zone that may gather oil that is looped around around the impeller 40 all can be by oil removing, thereby uses two ejector system to help recovered oil all sidedly.
Although the present invention mainly discloses at turbine engine and has used discharge pipe line 32 and releasing system 20 between 18 starting periods, will be appreciated that, described herein remove the oil that oil system is used for removing in any stage of ORC system operation exhaust shell and high pressure volute.The operating mode of the turbine engine when flowing through turbine engine comprising the refrigeration agent that comes from evaporator drier.
Though the present invention is described with reference to preferred embodiment, those skilled in the art should know that the distortion that this form and details are done all falls into the spirit and scope of the present invention.
Claims (20)
1. oil system that removes that in organic rankine cycle (ORC) system, prevents fault, this organic rankine cycle system comprises vaporizer, turbine engine, condenser and pump, and is arranged to make refrigerant cycle to pass through the ORC system, the described oil system that removes comprises:
Discharge pipe line, the part that it is positioned at the turbine engine upstream and is configured to receive the refrigeration agent that leaves vaporizer; And
Releasing system, it is configured to receive from the refrigeration agent of discharge pipe line and from turbine engine and extracts liquid.
2. the oil system that removes as claimed in claim 1, wherein said releasing system comprises:
First escaper, it is configured to receive from the refrigeration agent of described discharge pipe line and from the exhaust shell of turbine engine and extracts liquid.
3. the oil system that removes as claimed in claim 2, wherein said releasing system comprises:
Second escaper, it is configured to receive from the refrigeration agent of described discharge pipe line and from the high pressure volute of turbine engine and extracts liquid.
4. the oil system that removes as claimed in claim 1 further comprises:
Oil groove, it is configured to receive the liquid that extracts from described releasing system.
5. the oil system that removes as claimed in claim 1, the refrigeration agent that wherein leaves described vaporizer is a steam.
6. the oil system that removes as claimed in claim 1, the refrigeration agent that wherein leaves described vaporizer contains oil.
7. as claimed in claim 1 except that oil system, the liquid capsule oil scraper that wherein from described turbine engine, extracts, refrigeration agent and their combination.
8. the oil system that removes as claimed in claim 1, wherein said discharge pipe line comprises filter, filter is used for removing the particulate of refrigeration agent.
9. organic rankine cycle (ORC) system that is used to generate electricity, this ORC system comprises:
Condenser, it is used for the refrigeration agent that condensation is evaporated;
Pump, it is used to increase the pressure of refrigeration agent of being condensed;
Vaporizer, it is used to receive the refrigeration agent that is condensed and evaporates this refrigeration agent;
Turbine engine, it is used to receive refrigeration agent and the generating that is evaporated, and wherein turbine engine comprises impeller, exhaust shell, high pressure volute and oil groove;
Inlet valve, it is used to control from the transmission to turbine engine of the refrigeration agent of described vaporizer;
By-pass valve, it is used for preventing between the starting period that at described turbine engine refrigeration agent from flowing through turbine engine, and makes refrigeration agent be diverted to described condenser;
Discharge pipe line, it is positioned at the upstream of described inlet valve, and is used to receive the part from the refrigeration agent of described vaporizer; And
Releasing system, it is used to receive the refrigeration agent from described discharge pipe line, and extracts liquid from described turbine engine.
10. ORC as claimed in claim 9 system, wherein said releasing system comprises:
First escaper, it is used to receive from the refrigeration agent of described discharge pipe line and from the exhaust shell sucking-off liquid of described turbine engine.
11. the oil system that removes as claimed in claim 10, wherein said releasing system comprises:
Second escaper, it is used to receive from the refrigeration agent of described discharge pipe line and from the high pressure volute sucking-off liquid of described turbine engine.
12. ORC as claimed in claim 9 system, wherein when described by-pass valve was shown in an open position, described inlet valve was in the closed position.
13. ORC as claimed in claim 9 system, the weight of the refrigeration agent that wherein said discharge pipe line receives is less than from one of percentage of the gross weight of the refrigeration agent of described vaporizer.
14. ORC as claimed in claim 9 system, wherein said discharge pipe line comprises filter, and described filter is used for removing the particulate of refrigeration agent.
15. the method for operation organic rankine cycle (ORC) system, this system comprises vaporizer, turbine engine and the refrigeration agent of being arranged to cycle through vaporizer and turbine engine, and described method comprises:
Between the starting period, prevent that the refrigeration agent that leaves described vaporizer from flowing through turbine engine at described turbine engine;
Send refrigeration agent from described vaporizer to by-pass line, this by-pass line is used for transmitting refrigeration agent between the starting period to condenser at described turbine engine;
Send a part in the refrigeration agent of described vaporizer to releasing system; And use described releasing system to extract liquid from described turbine engine.
16. method as claimed in claim 15, a part to the step of described releasing system that wherein sends in the refrigeration agent of described vaporizer comprises:
Transmit first portion's to the first escaper of refrigeration agent, wherein said first escaper is used for extracting liquid from the exhaust shell of described turbine engine; And
Transmit second portion to the second escaper of refrigeration agent, wherein said second escaper is used for extracting liquid from the high pressure volute of described turbine engine.
17. method as claimed in claim 15 wherein is sent to releasing system by the part that the discharge pipe line that is arranged in the turbine engine upstream will come from the refrigeration agent of described vaporizer.
18. method as claimed in claim 15, this part refrigeration agent that wherein is sent to releasing system is less than from one of percentage of the gross weight of the refrigeration agent of described vaporizer
19. method as claimed in claim 15 further comprises:
The liquid that transmission extracts from described turbine engine is to the oil groove of turbine engine.
20. method as claimed in claim 15, wherein at least a the liquid capsule oil scraper that extracts from described turbine engine, refrigeration agent and their combination.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2007/016892 WO2009017471A1 (en) | 2007-07-27 | 2007-07-27 | Oil removal from a turbine of an organic rankine cycle (orc) system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101765704A true CN101765704A (en) | 2010-06-30 |
Family
ID=40304574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780100057A Pending CN101765704A (en) | 2007-07-27 | 2007-07-27 | Oil removal from a turbine of an organic rankine cycle (ORC) system |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20110005237A1 (en) |
| EP (1) | EP2179145B1 (en) |
| JP (1) | JP4913904B2 (en) |
| CN (1) | CN101765704A (en) |
| AU (1) | AU2007357132A1 (en) |
| CA (1) | CA2694678C (en) |
| DK (1) | DK2179145T3 (en) |
| MX (1) | MX2010001077A (en) |
| SI (1) | SI2179145T1 (en) |
| WO (1) | WO2009017471A1 (en) |
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| CN104093943A (en) * | 2012-02-02 | 2014-10-08 | 西门子公司 | Method for separating semiconductor devices using nanoporous structure |
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| DE102010036530A1 (en) * | 2010-07-21 | 2012-01-26 | Marten Breckling | Heat engine for converting thermal energy into mechanical energy used to generate electricity, and method of operating such a heat engine |
| AU2012233670A1 (en) * | 2011-04-01 | 2013-10-17 | Nuovo Pignone S.P.A. | Organic Rankine Cycle for concentrated solar power system |
| US8956106B2 (en) | 2011-12-20 | 2015-02-17 | General Electric Company | Adaptive eductor system |
| US9845711B2 (en) * | 2013-05-24 | 2017-12-19 | Cummins Inc. | Waste heat recovery system |
| DE102016218936B4 (en) | 2016-09-29 | 2022-10-06 | Rolls-Royce Solutions GmbH | Method for operating a system for carrying out a thermodynamic cycle, system for carrying out a thermodynamic cycle and arrangement with such a system and an internal combustion engine |
| EP3688383A1 (en) | 2017-09-25 | 2020-08-05 | Johnson Controls Technology Company | Two step oil motive eductor system |
| US11255315B1 (en) | 2021-04-02 | 2022-02-22 | Ice Thermal Harvesting, Llc | Controller for controlling generation of geothermal power in an organic Rankine cycle operation during hydrocarbon production |
| US11644015B2 (en) | 2021-04-02 | 2023-05-09 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
| US11480074B1 (en) | 2021-04-02 | 2022-10-25 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
| US11486370B2 (en) | 2021-04-02 | 2022-11-01 | Ice Thermal Harvesting, Llc | Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations |
| US11493029B2 (en) | 2021-04-02 | 2022-11-08 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
| US11359576B1 (en) | 2021-04-02 | 2022-06-14 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
| US11592009B2 (en) | 2021-04-02 | 2023-02-28 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
| US11421663B1 (en) | 2021-04-02 | 2022-08-23 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic Rankine cycle operation |
| US11293414B1 (en) | 2021-04-02 | 2022-04-05 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic rankine cycle operation |
| US11187185B1 (en) * | 2021-04-05 | 2021-11-30 | Cummins Inc. | Waste heat recovery lube oil management |
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- 2007-07-27 AU AU2007357132A patent/AU2007357132A1/en not_active Abandoned
- 2007-07-27 CN CN200780100057A patent/CN101765704A/en active Pending
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- 2007-07-27 EP EP07810848.7A patent/EP2179145B1/en active Active
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- 2007-07-27 WO PCT/US2007/016892 patent/WO2009017471A1/en active Application Filing
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| CN104093943B (en) * | 2012-02-02 | 2016-06-15 | 西门子公司 | The method of facility and the sonic vibration for decaying in corresponding facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4913904B2 (en) | 2012-04-11 |
| US20110005237A1 (en) | 2011-01-13 |
| DK2179145T3 (en) | 2017-01-09 |
| SI2179145T1 (en) | 2017-02-28 |
| MX2010001077A (en) | 2010-07-28 |
| EP2179145A1 (en) | 2010-04-28 |
| JP2010534785A (en) | 2010-11-11 |
| AU2007357132A1 (en) | 2009-02-05 |
| EP2179145A4 (en) | 2014-04-09 |
| EP2179145B1 (en) | 2016-11-09 |
| CA2694678C (en) | 2014-09-16 |
| WO2009017471A1 (en) | 2009-02-05 |
| CA2694678A1 (en) | 2009-02-05 |
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