CN103080480B - Flow dividing device for a condensation steam turbine having a plurality of outlets - Google Patents
Flow dividing device for a condensation steam turbine having a plurality of outlets Download PDFInfo
- Publication number
- CN103080480B CN103080480B CN201180041746.1A CN201180041746A CN103080480B CN 103080480 B CN103080480 B CN 103080480B CN 201180041746 A CN201180041746 A CN 201180041746A CN 103080480 B CN103080480 B CN 103080480B
- Authority
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- China
- Prior art keywords
- shunt
- pressure
- cooling medium
- stationary point
- leading edge
- Prior art date
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
-
- 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
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
- F01D1/023—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines the working-fluid being divided into several separate flows ; several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths
-
- 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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/02—Arrangement of sensing elements
- F01D17/08—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
-
- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/31—Application in turbines in steam turbines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention relates to a flow dividing device for a condensation steam turbine having a plurality of outlets comprising a flow divider (5) dividing the total steam flow within the waste steam housing (2) into two steam flows (30, 31), each flowing through an associated condenser (14, 15), a stagnation point detection device (18-20) for locating the stagnation point (29) formed upon dividing the total steam flow at the front edge of the flow divider (6), and a coolant dividing device (22) by means of which the coolant infeed (23) to the condensers (14, 15) is controlled as a function of the location of the stagnation point (29) such that the stagnation point (29) is centered on the flow divider (5) while avoiding a flow disruption.
Description
Technical field
The present invention relates to a kind of part flow arrangement of the condensing steam turbine for having multiple outlet.
Background technique
Condensing steam turbine be such as configured to Baumann stage by the guide wheel fixed with around the level that form of impeller that machine axis rotates, the contact pin of annular is installed in described Baumann stage, by means of described contact pin, blade path be divided into outside with the subchannel of inside.At this, the quality of steam stream in this grade is divided into two subflows by means of shunt, described two subflows subsequently via different expansion path by another vane group and directed toward condenser.Contact pin is assembled in nozzle blade cascade in the mode of intersecting with guide vane, and wherein contact pin has the leading edge of annular.
Usually, contact pin is formed rigidly, makes leading edge be constant relative to the inclination of the machine axis of condensing steam turbine all the time about the time.Usually the inflow angle of vapor stream is set as tilt angle, by means of described tilt angle, vapor stream hits in the leading edge of contact pin in the design conditions of condensing steam turbine.But if the operating mode off-design operating mode of condensing steam turbine, so the velocity component of vapor stream can change, and makes the inflow angle of vapor stream no longer equal the orientation angle of the leading edge of contact pin.Any departing from of the orientation angle in inflow angle and design conditions causes the mistake of contact pin to become a mandarin, and described mistake becomes a mandarin the increase of the flow loss caused in vapor stream.The described mistake of contact pin become a mandarin such as can according to inner side or the mistake in outside become a mandarin and cause forming on the pressure side or suction side on the inner side or outside of contact pin.Suction side occurs the danger of flow separation, causes again the high flow loss of vapor stream thus.The thermodynamic efficiency of this flow loss infringement condensing steam turbine, makes condensing steam turbine only can with poor power work under the operating mode of off-design operating mode.
Summary of the invention
The object of the invention is the part flow arrangement realizing a kind of condensing steam turbine for having multiple outlet, wherein condensing steam turbine can work under the operating mode of design conditions not meeting condensing steam turbine with the high thermal efficiency.
Part flow arrangement according to the condensing steam turbine for having multiple outlet of the present invention has shunt, stationary point sniffer and distribution device of cooling medium, total vapor stream is divided into two vapor streams by described shunt, described two vapor streams its corresponding condenser of percolation respectively, described stationary point sniffer for positioning the stationary point formed when separating total vapor stream in shunt leading edge, by means of described distribution device of cooling medium, control relatively to supply the cooling medium of condenser with the location in stationary point, stationary point is made to be positioned at center on the distributor of stationary point, to avoid the situation of flow separation.If stationary point is positioned at center on shunt, so shunt leading edge is streamed substantially symmetrically, makes on shunt, not occur flow separation.Relatively, if stationary point outwards or inwardly changes its position in shunt leading edge, so shunt will be become a mandarin by mistake, may occur flow separation thus on shunt.
The position of stationary point in shunt leading edge draws from the relation of the outflow pressure of the current operating mode of condensing steam turbine and vapor stream.Outflow pressure is for itself by presetting the cooling medium supply of condenser.The increase supplied the cooling medium of condenser causes the increase of dispelling the heat when corresponding vapor stream condensation, and then causes the raising of condenser power, and the condensing pressure thus as the outflow pressure of this vapor stream reduces.On the other hand, when condensing temperature by reduce the supply of the cooling medium of condenser raised so that condensing pressure improves time, the back pressure of vapor stream improves.Therefore, it is possible to by coming to regulate condensing temperature for each vapor stream and then regulate condensing pressure to the corresponding cooling medium supply of each condenser in each condenser.Steam total mass flow is divided into corresponding protonatomic mass stream by the ratio according to the outflow pressure of vapor stream on shunt, according to the present invention, described protonatomic mass stream is regulated, make stationary point be positioned at center in shunt leading edge, on shunt, forbid flow separation thus.
By positioning by means of stationary point sniffer the quality of streaming measuring shunt according to the present invention to the stationary point in shunt leading edge, thus according to streaming quality, namely supply by means of to the corresponding cooling medium of each condenser the outflow pressure situation controlling vapor stream according to the position of stationary point in shunt leading edge.Therefore, realize according to the present invention, the position of stationary point in shunt leading edge can remain in central position due to location and the supply of the cooling medium to each condenser being matched with described location on shunt, make in the different operating mode of condensing steam turbine, shunt is streamed by low-loss all the time, to avoid flow separation.Therefore, have and in the operating mode of off-design operating mode, also there is the high thermal efficiency according to the condensing steam turbine of part flow arrangement of the present invention, such as, make the effective outline of the aerodynamics of shunt in described design conditions.
Stationary point sniffer preferably has pressure test device, can measure the pressure reduction in the region of the shunt leading edge between the vapor stream on shunt and described pressure reduction is supplied to distribution device of cooling medium to supply the cooling medium of condenser for control by means of described pressure test device.If stationary point is positioned at center on shunt, so streaming of shunt is symmetrical substantially.Therefore, in the region of shunt leading edge for the vapor stream on shunt draws substantially equal stress level.If stationary point is moved to side in shunt leading edge, on the sidepiece so shifted in the stationary point of shunt compared with on another sidepiece deviating from this sidepiece of shunt, usually there is higher stress level.Therefore, the pressure reduction in the region of the voltage divider leading edge between the vapor stream on shunt is the central standard in stationary point.
Pressure test device preferably for each vapor stream there is for measuring shunt the surface in the region of shunt leading edge on the pressure transducer of static pressure and pressure reduction sensing equipment, the difference between static pressure can be measured by means of described pressure reduction sensing equipment.Therefore, pressure reduction sensing equipment provides the pressure reduction of shunt both sides, makes to control to supply the cooling medium of condenser according to the pressure reduction measured by pressure reduction sensing equipment by means of pressure reduction sensing equipment.
At least one in pressure transducer is preferably set directly at measuring below the surface portion of static pressure by means of corresponding pressure transducer of shunt.As an alternative or addedly, preferably, at least one surface portion that there is static pressure to be measured away from shunt in pressure transducer and being coupled by means of the passage of the pressure transmission in shunt and described surface portion.The passage that pressure transmits can be such as pick-up hole.As an alternative, preferably substitute pressure transducer and pressure reduction sensing equipment in addition and be provided with differential pressure measurement equipment, described differential pressure measurement equipment measures static pressure to be measured in the corresponding surface portion of shunt.
Shunt is preferably configured to ring concentric with the machine axis of condensing steam turbine, described ring is fixed at least one axially directed blade of condensing steam turbine, wherein described in the region of shunt leading edge, shunt leading edge is stretched out in the axial upstream of axially directed blade inlet edge, makes the surface portion that there is static pressure to be measured of shunt be arranged on the upstream of axially directed blade inlet edge.Therefore, advantageously, the secondary flow impact of axially directed blade, such as corner angle turbulent flow and boundary layer are positioned at the downstream of the described surface portion of shunt, static pressure to be measured in described surface portion be there is no affect by the impact of the secondary flow of axially directed blade.Therefore, the position of stationary point in shunt leading edge is the Precision criterion streaming quality for shunt, because do not damaged by the secondary flow effect of axially directed blade the detection that position, stationary point is carried out by means of the static pressure treating to measure in surface portion.
Preferably, by means of distribution device of cooling medium according to pressure reduction by predetermined cooling medium mass flow separately, to supply as to the cooling medium of condenser.At this, predetermined cooling medium mass flow preferably meets the maximum available cooling medium mass flow for condensing steam turbine.Therefore, deriving maximum available heat by maximum available cooling medium mass flow all the time to derive condenser heat from condenser, wherein maximum available cooling medium mass flow being assigned on condenser.In addition, preferably, control to supply the cooling medium of condenser by means of distribution device of cooling medium, to such an extent as to the back pressure of each vapor stream makes stationary point be positioned at center in shunt leading edge.Preferably via pressure reduction, distribution device of cooling medium is fed back by means of pressure test device at this, thus regulate the back pressure of each vapor stream, make the absolute pressure reduction detected by pressure test device be minimum.Therefore, realize according to the present invention, the position of stationary point on shunt is positioned at center all the time, and the absolute pressure minimum wherein detected by pressure test device is substantially zero.
Accompanying drawing explanation
The preferred embodiment according to part flow arrangement of the present invention is illustrated hereinafter according to signal accompanying drawing.Show:
Fig. 1 illustrates the schematic diagram of the condensing steam turbine of the embodiment with part flow arrangement,
Fig. 2 illustrates the cross-section details figure of the leading edge of the shunt of the embodiment of part flow arrangement, and
Fig. 3 to 5 illustrates the cross-section details figure in different flowing states around the leading edge of shunt coming from Fig. 2.
Embodiment
As what find out from Fig. 1 to 5, condensing steam turbine 1 has waste vapour housing 2, in described waste vapour housing, be provided with turbine rotor 3.When condensing steam turbine 1 works, steam total mass flow percolation waste vapour housing 2, described steam total mass flow exports 4 places at the waste vapour of waste vapour housing 2 and leaves.
In waste vapour housing 2, be provided with the shunt 5 as annular tab, described shunt is settled around turbine rotor 3 coaxially and the flow channel in waste vapour housing 2 is divided into inner region and perimeter.Shunt 5 has shunt leading edge 6, wherein uses the shunt string in the cross section of 7 shunts 5 shown in broken lines
the inner region of the flow channel of waste vapour housing 2 is by 8 limiting inside shunt, and perimeter is by 9 limiting outside shunt, wherein 89 to be connected at shunt leading edge 6 place with outside shunt inside shunt.
Shunt 5 is kept by the guide vane 10 of inside and outside guide vane 11 in waste vapour housing 2, and wherein shunt 5 is by means of 8 being fixed on inner guide vane 10 and by means of 9 being fixed on outside guide vane 11 outside its shunt inside its shunt.Steam total mass flow is divided into inner vapor stream and outside vapor stream by shunt 5, and wherein exporting 4 places at waste vapour is that inner vapor stream is provided with inner waste vapour pipeline 12 and is provided with outside exhaust steam passage 13 for outside vapor stream.Inner vapor stream to be led the second condenser 15 by outside waste vapour pipeline 13 by lead the first condenser 14 and the vapor stream of outside of inner waste vapour pipeline 12, wherein inner vapor stream condensation and the condensation in the second condenser 15 of the vapor stream of outside in the first condenser 14.In the first condensate conduit 16, derive from the first condenser 14 condensation product be condensed into by the vapor stream of inside, relatively, derive from the second condenser 15 condensation product be condensed into by the vapor stream of outside by means of the second condensation product passage 17.
In the region of shunt leading edge 6, in shunt 5, inside shunt, assemble inner pressure transducer 18 on 8 and assemble outside pressure transducer 19 on 9 outside shunt.By means of pressure transducer 18,19, when shunt 5 is streamed, directly to measure inside shunt static pressure on 8 by means of the pressure transducer 18 of inside in the downstream of shunt leading edge 6 and to measure outside shunt the static pressure on 9 by means of the pressure transducer 19 of outside.In addition, in shunt 5, differential pressure measurement equipment 20 is provided with, by means of the difference between the static pressure that described differential pressure measurement measuring apparatus is measured by pressure transducer 18,19.Pressure reduction is supplied to cooling water dispensing device 22 by means of pressure difference signal wire 21 as electronic signals.
Realize the distribution to cooling water aggregate supply by means of cooling water dispensing device 22, described cooling water aggregate supply is supplied to cooling water dispensing device 22 by cooling water aggregate supply pipeline 23.At this, cooling water aggregate supply be divided into first cooling water supply and the second cooling water supply, wherein first cooling water supply in the first cooling water service 24, be supplied to the first condenser 14 and second cooling water supply in the second cooling water service 25, be supplied to the second condenser 15.First vapor stream is condensed into condensation product by means of the first cooling water supply in the first condenser 14, and relatively, the second vapor stream is condensed into condensation product by means of the second cooling water supply in the second cooling water service 25 in the second condenser 15.Derive pipeline 26,27 by means of cooling water respectively and derive condensation product from condenser 14,15.
Streaming of shunt leading edge 6 illustrates by means of streamline 28,30,31 in Fig. 3 to 5.Become a mandarin and have stationary point streamline 28, described stationary point streamline forms stationary point 29 in shunt leading edge 6.Inner streamline 30 is shown in below in Fig. 3 to 5 and outside streamline 31 is shown up, wherein inner streamline 30 represents inner vapor stream and the streamline 31 of outside represents outside vapor stream.In figure 3, stationary point 29 is positioned on shunt string 7, makes stationary point 29 be symmetrically located at shunt leading edge 6 place.Therefore, streamline 30,31 is formed around shunt string 7 symmetrically, is symmetrical thus by vapor stream to streaming of shunt 5.Therefore, numerical value that measured by pressure transducer 18,19, static pressure is almost large equally, makes to measure pressure reduction by means of differential pressure measurement equipment 20 and is approximately zero, and wherein corresponding signal is input in pressure difference signal wire 21 by differential pressure measurement equipment 20.
Shown in Figure 4 in the streaming of shunt leading edge 6, stationary point is positioned at above shunt string 7, and it is asymmetric for making streaming of shunt leading edge 6.Therefore, flowing inner side 8 forms separated region 32, along with flow loss and the efficiency reduction of condensing steam turbine.Similarly, streaming shunt leading edge 6 shown in Figure 5, wherein stationary point 29 is set to offset below shunt string 7, to make outside shunt to form separated region 32 on 9.
In mobility status shown in Figure 4, the numerical value of the static pressure measured by the pressure transducer 19 of outside is greater than the numerical value of the static pressure measured by the pressure transducer 18 of inside, makes to input corresponding signal to cooling water dispensing device 22 via pressure difference signal wire 21 by differential pressure measurement equipment 20.Show similarly in mobility status in Figure 5, the numerical value of the static pressure wherein measured by the pressure transducer 19 of outside is less than the numerical value of the static pressure measured by the pressure transducer 18 of inside.Therefore, during poor between the pressure that pressure reduction is defined as in outside pressure transducer 19 and in the pressure transducer 18 of inside, the signal in pressure difference signal wire 21 is being approximately zero according in the mobility status of Fig. 3, according to being just such as in the mobility status of Fig. 4.Correspondingly, be negative according to pressure reduction in the mobility status of Fig. 5.Pressure difference signal is provided via pressure difference signal wire 21 pairs of cooling water dispensing devices 22, wherein connect cooling water dispensing device 22, making at pressure difference signal is that timing is reduced by the first cooling water service 24 and supplies the cooling water of the first condenser 14, and increases when maintaining the cooling water aggregate supply by cooling water aggregate supply pipeline 23 and supplied the cooling water of the second condenser 15 by the second cooling water service 25.At this, mobility status changes towards mobility status shown in Figure 3, and stationary point 29 9 to be moved on to shunt string 7 outside shunt.Therefore, again realize the mobility status of the symmetry around shunt 5 shown in Figure 3, separated region 32 shown in Figure 4 thus disappears.
Causing in cooling water dispensing device 22 according to the negative pressure difference signal in pressure difference signal wire 21 existed in the mobility status of Fig. 5, cooling water aggregate supply in cooling water aggregate supply pipeline 23 be divided into for the first condenser 14 the first cooling water service 24 and for the corresponding cooling water supply of the second cooling water service 25 of the second condenser 15, make to increase to the supply of the cooling water of the first condenser 14 and reduce and the cooling water of the second condenser 15 is supplied, stationary point 29 8 to be moved on to shunt string 7 inside shunt.At this, eliminate separated region 32 shown in Figure 5 and flowing is even according to Fig. 3 and equity again.
By store in cooling water dispensing device 22, the control law that is associated via pressure difference signal with the current location in stationary point 29, the uneven mobility status illustrated in figures 4 and 5 turns back in the mobility status of the symmetry according to Fig. 3.At this, eliminate the separated region 32 illustrated in figures 4 and 5, realize the reduction of the flow loss in vapor stream thus.Therefore, by means of the control logic stored in cooling water dispensing device 22, even if the operating mode of condensing steam turbine may change and depart from the design conditions of condensing turbines, also realize the thermal efficiency of condensing steam turbine 1 to remain on high level.
Claims (10)
1., for having the part flow arrangement of the condensing steam turbine of multiple outlet, described part flow arrangement has:
Shunt (5), total vapor stream is divided into two vapor streams (30,31) by described shunt, described two vapor streams condenser (14,15) that percolation is associated with it respectively,
Stationary point sniffer (18-20), described stationary point sniffer is used for positioning the stationary point (29) formed when separating described total vapor stream in shunt leading edge (6), and
Distribution device of cooling medium (22), by means of described distribution device of cooling medium, control described condenser (14 according to the location of described stationary point (29), 15) total cooling medium supply (23), described stationary point (29) is made on described shunt (5), to be positioned at center, to avoid flow separation.
2. part flow arrangement according to claim 1,
Wherein said stationary point sniffer (18-20) has pressure test device (20), in the region of described shunt leading edge (6), on described shunt (5) described vapor stream (30 can be measured by means of described pressure test device, 31) pressure reduction between, and described pressure reduction is supplied to described distribution device of cooling medium (22) for control to described condenser (14,15) the first cooling medium supply and the second cooling medium supply (24,25).
3. part flow arrangement according to claim 2,
Wherein said stationary point sniffer (18-20) has pressure reduction sensing equipment, and for described vapor stream (30,31) each in has the pressure transducer (18 of the static pressure on the surface in the region of described shunt leading edge (6) for measuring described shunt (5) respectively, 19), the pressure reduction between described static pressure can be measured by means of described pressure reduction sensing equipment.
4. part flow arrangement according to claim 3,
At least one in wherein said pressure transducer (18,19) is set directly at the below can measuring the surface portion of static pressure by means of corresponding described pressure transducer (18,19) of described shunt (5).
5. the part flow arrangement according to claim 3 or 4,
Wherein said pressure transducer (18,19) at least one surface portion that there is described static pressure to be measured away from described shunt (5) in, and be coupled by means of the pressure communication channel in described shunt (5) and described surface portion.
6. according to the part flow arrangement one of claim 3 to 4 Suo Shu,
Wherein said shunt (5) is set to concentric ring, described concentric ring is fixed at least one axially directed blade (10 of described condensing steam turbine (1), 11) on, wherein described in the region of described shunt leading edge (6), shunt leading edge is stretched out in the axial upstream of axially directed blade inlet edge, makes the surface portion that there is described static pressure to be measured of described shunt (5) be arranged on the upstream of described axially directed blade inlet edge.
7. according to the part flow arrangement one of claim 2 to 4 Suo Shu,
Wherein by means of described distribution device of cooling medium (22) according to described pressure reduction by predetermined cooling medium mass flow separately, using as to described condenser (14,15) described first cooling medium supply and described second cooling medium supply (24,25).
8. part flow arrangement according to claim 7,
Wherein said predetermined cooling medium mass flow corresponds to maximum available cooling medium mass flow.
9. according to the part flow arrangement one of claim 2 to 4 Suo Shu,
Wherein control described condenser (14 by means of described distribution device of cooling medium (22), 15) described first cooling medium supply and described second cooling medium supply (24,25), to such an extent as to the back pressure of vapor stream described in each (30,31) makes described stationary point (29) be positioned at center on described shunt leading edge (6).
10. part flow arrangement according to claim 9,
Wherein described distribution device of cooling medium (22) is fed back via described pressure reduction by means of described pressure test device (20), thus regulate vapor stream (30 described in each, 31) described back pressure, makes the absolute pressure reduction that detected by described pressure test device (20) minimum.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10174372.2 | 2010-08-27 | ||
| EP10174372A EP2423450A1 (en) | 2010-08-27 | 2010-08-27 | Flow separator device for a condensation steam turbine with multiple outputs |
| PCT/EP2011/064207 WO2012025449A1 (en) | 2010-08-27 | 2011-08-18 | Flow dividing device for a condensation steam turbine having a plurality of outlets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103080480A CN103080480A (en) | 2013-05-01 |
| CN103080480B true CN103080480B (en) | 2015-04-01 |
Family
ID=44474994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180041746.1A Expired - Fee Related CN103080480B (en) | 2010-08-27 | 2011-08-18 | Flow dividing device for a condensation steam turbine having a plurality of outlets |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP2423450A1 (en) |
| CN (1) | CN103080480B (en) |
| WO (1) | WO2012025449A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9546550B2 (en) | 2012-04-23 | 2017-01-17 | Thomas Francis Landon | Bypass foil |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2724545A (en) * | 1949-12-05 | 1955-11-22 | Tech Studien Ag | Discharge casings for axial flow engines |
| GB746832A (en) * | 1953-02-10 | 1956-03-21 | Rolls Royce | Jet pipes of gas turbine engines |
| US3552877A (en) * | 1968-02-15 | 1971-01-05 | Escher Wyss Ltd | Outlet housing for an axial-flow turbomachine |
| US3802187A (en) * | 1972-06-01 | 1974-04-09 | Avco Corp | Exhaust system for rear drive engine |
| DE3025041A1 (en) * | 1979-07-02 | 1981-01-08 | Zakl Mech Im Gen K S | Divided flow turbine stage - has separate guide discs in two chambers leading to bleed-off connections |
| US5174120A (en) * | 1991-03-08 | 1992-12-29 | Westinghouse Electric Corp. | Turbine exhaust arrangement for improved efficiency |
-
2010
- 2010-08-27 EP EP10174372A patent/EP2423450A1/en not_active Withdrawn
-
2011
- 2011-08-18 CN CN201180041746.1A patent/CN103080480B/en not_active Expired - Fee Related
- 2011-08-18 WO PCT/EP2011/064207 patent/WO2012025449A1/en active Application Filing
- 2011-08-18 EP EP11745975.0A patent/EP2609295B1/en not_active Not-in-force
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2724545A (en) * | 1949-12-05 | 1955-11-22 | Tech Studien Ag | Discharge casings for axial flow engines |
| GB746832A (en) * | 1953-02-10 | 1956-03-21 | Rolls Royce | Jet pipes of gas turbine engines |
| US3552877A (en) * | 1968-02-15 | 1971-01-05 | Escher Wyss Ltd | Outlet housing for an axial-flow turbomachine |
| US3802187A (en) * | 1972-06-01 | 1974-04-09 | Avco Corp | Exhaust system for rear drive engine |
| DE3025041A1 (en) * | 1979-07-02 | 1981-01-08 | Zakl Mech Im Gen K S | Divided flow turbine stage - has separate guide discs in two chambers leading to bleed-off connections |
| US5174120A (en) * | 1991-03-08 | 1992-12-29 | Westinghouse Electric Corp. | Turbine exhaust arrangement for improved efficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2609295B1 (en) | 2015-03-18 |
| CN103080480A (en) | 2013-05-01 |
| WO2012025449A1 (en) | 2012-03-01 |
| EP2423450A1 (en) | 2012-02-29 |
| EP2609295A1 (en) | 2013-07-03 |
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