DE386276C - Runner and control tool cooling for combustion turbines - Google Patents

Runner and control tool cooling for combustion turbines

Info

Publication number
DE386276C
DE386276C DEB103721D DEB0103721D DE386276C DE 386276 C DE386276 C DE 386276C DE B103721 D DEB103721 D DE B103721D DE B0103721 D DEB0103721 D DE B0103721D DE 386276 C DE386276 C DE 386276C
Authority
DE
Germany
Prior art keywords
coolant
space
housing
blades
combustion turbines
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
Application number
DEB103721D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CONRAD BAERWOLFF DIPL ING
Original Assignee
CONRAD BAERWOLFF DIPL ING
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CONRAD BAERWOLFF DIPL ING filed Critical CONRAD BAERWOLFF DIPL ING
Priority to DEB103721D priority Critical patent/DE386276C/en
Application granted granted Critical
Publication of DE386276C publication Critical patent/DE386276C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12Blades
    • F01D5/14Form or construction
    • F01D5/18Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187Convection cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12Blades
    • F01D5/22Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225Blade-to-blade connections, e.g. for damping vibrations by shrouding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

Das Hauptpatent 383506 hat eine Einrichtung zur Kühlung von Verbrennungsturbinen zum Gegenstand, bei der die Kühlflüssigkeit aus den hohl ausgebildeten Schaufeln in einemThe main patent 383506 has a device for cooling combustion turbines, in which the cooling liquid from the hollow blades in one

. 5 scheibenförmigen Strahl in einen besonderen konzentrischen Ringraum des Gehäuses übertritt. . 5 disc-shaped beam passes into a special concentric annular space of the housing.

Zweck der vorliegenden Erfindung ist, zu verhindern, daß zersprühtes und verdampftes Kühlmittel in den Gasraum übertritt, um die Schaüfelkühlung beherrschen zu 'können und chemische Einflüsse zu verhindern.The purpose of the present invention is to prevent spray and vaporization Coolant passes into the gas space in order to be able to control the schüfel cooling and to prevent chemical influences.

Dies wird gemäß der Erfindung dadurch erreicht, daß das Kühlmittel so abgeleitet wird, daß gegenüber dem Gasraum eine Saugwirkung entsteht, die, soweit es die möglichst eng gehaltenen Spalten zwischen Gehäuse und Laufzeugteilen, wobei besondere Dichtungsringe am Gehäuse Verwendung finden können, zulassen, Gas in den Kühlmittelstrom herüberzieht und mit diesem fortreißt.This is achieved according to the invention in that the coolant is diverted in such a way that that compared to the gas space there is a suction effect, as far as it is kept as close as possible Allow gaps between the housing and running gear parts, whereby special sealing rings can be used on the housing, Gas pulls over into the coolant flow and is carried away with it.

Der Erfindungsgegenstand ist in der Zeichnung in zwei Ausführungsformen schematisch veranschaulicht.The subject matter of the invention is shown schematically in two embodiments in the drawing illustrated.

Die Ableitung des Kühlmittels ergThe discharge of the coolant erg

Weise, daß auf die Schaufeln α ein D/m>aß<i6 (Abb. 1) oder / (Abb. 2) mit sejitfche« "Rändern von entsprechendem Prpfif%esetzt wird, in dessen Hohlseite c die SpHauf<rfraume d ausmünden. Das Deckband iaßt^aas zersprühende Kühlmittel zusammenT-uwd leitet es als scheibenförmigen Strahl in die konzentrischen Ringräume e des Gehäuses·. Die seitlichen Ränder des Deckbandes können parallel der Drehungsebene verlauf en''(Abb. 2) oder nach außengegen- einander zusammenlaufen (Abb. 1). BeimÜber-Way that on the blades α a D / m> aß <i6 (Fig. 1) or / (Fig. 2) with separate "" edges of the corresponding test pipe, in the hollow side c of which the spherical spaces d open out. the shroud iaßt ^ aas zersprühende coolant together ment uwd forwards it as a disc-shaped beam in the concentric annular chambers e of the housing ·. the lateral edges of the shroud may be parallel to the rotation plane extending s '' (Fig. 2) or after außengegen- each other converge (Figure . 1).

" gang in den Gehäuseringraum e können Dichtungsringe g" verwendet werden (Abb. 2). Zur Erzielung der Saugwirkung ist es zweckmäßig, daß ein Teil des Kühlwassers in tropfbar flüssigem Zustand nach c gelangt. Der andere Teil kann während des Durchganges durch die Schaufeln, unter Ausnutzung der Verdampfungswärme für die Kühlwirkung, verdampfen. Beim Eintritt des Kühlmittels Jn-tien Gehäuseringraum kann durch anfängliche Verengung desselben (Abb. 1) die, -Saugwirkung unterstützt werden. Im^t^eiteren Verlaufe wird der Ringraum i£iai^Ächsialsehnitt betrachtet) nach außen ,^u^-gemäß der Druckumsetzung, allmählich-apveltert und seitlich abgebogen, um" ein ZufüfÄprallen von .Kühlmittelteilchen auf · fo somit Störung der Saugwirkung"Sealing rings g" can be used in the case ring space e (Fig. 2). In order to achieve the suction effect, it is expedient that part of the cooling water reaches c in a dripping liquid state. The other part can evaporate during the passage through the blades, using the heat of evaporation for the cooling effect. When the coolant enters into the housing ring, the suction effect can be supported by initial narrowing of it (Fig. 1). In the further course the annulus is considered (axial section) to the outside, gradually pelted and bent to the side in accordance with the pressure conversion, in order to avoid the impact of coolant particles, thus disturbing the suction effect

xdryKuidere Arbeitsverltiste zu vermeiden. Aus !em äußeren Teil des Ringraumes wird das Kühlmittel abgeleitet.xdryKuidere to avoid work losses. the end The coolant is drained off in the outer part of the annular space.

Claims (3)

Patent-Ansprüche:Patent Claims: i. Einrichtung zum Kühlen von Verbrennungsturbinen nach Patent 383506, dadurch gekennzeichnet, daß zur Verhinderung des Übertrittes von Kühlmittel ini. Device for cooling combustion turbines according to patent 383506, thereby characterized in that to prevent the transfer of coolant in den Gasraum das Kühlmittel von den Laufschaufeln (α) so in den im Gehäuse befindlichen konzentrischen Ringraum (e) übergeleitet wird, daß gegenüber dem Gasraum eine Saugwirkung entsteht, die Gas in den Kühlmittelstrom herüberzieht und mit diesem in dem Raum (e) fortreißt.the gas space the coolant is transferred from the rotor blades (α) into the concentric annular space (e) in the housing so that a suction effect occurs in relation to the gas space, which pulls gas over into the coolant flow and carries it away with it in space (e). 2. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß über die Schaufeln (α) ein Deckband (/, Abb. 2) mit seitlichen, parallelen Bändern, die bis ans Gehäuse ragen, gezogen ist, so daß ein ringförmiger Hohlraum (c) entsteht, in den das aus den Schaufeln austretende Kühlmittel eintritt und aus dem es in den ringförmigen Raum (e) des Gehäuses übergeführt wird. 2. Device according to claim i, characterized in that over the blades (α) a shroud (/, Fig. 2) with lateral, parallel bands that protrude to the housing, is drawn, so that an annular cavity (c) is formed into which the coolant emerging from the blades enters and from which it is transferred into the annular space (e) of the housing. 3. Einrichtung nach Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die seitlichen Ränder des Deckbandes (i>) nach außen sich einander nähern, wobei der konzen- ao irische Gehäuseringraum (e) an der Eintrittsstelle des Kühlmittels gleichfalls zur Unterstützung der Saugwirkung verengt sein kann, um sich dann nach außen, der Druckumsetzung entsprechend!, allmählich zu erweitern und in den seitlich umgebogenen Teil zum Abführen des Kühlmittels zu endigen.3. Device according to claims 1 and 2, characterized in that the lateral edges of the shroud (i>) approach each other outwards, the concen-ao Irish housing ring space (e) also being narrowed at the entry point of the coolant to support the suction effect can then gradually expand to the outside, corresponding to the pressure conversion !, and end in the laterally bent part for discharging the coolant. Abb. i.Fig.i. Abb.Fig. 2.2.
DEB103721D 1921-04-02 1921-04-02 Runner and control tool cooling for combustion turbines Expired DE386276C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB103721D DE386276C (en) 1921-04-02 1921-04-02 Runner and control tool cooling for combustion turbines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB103721D DE386276C (en) 1921-04-02 1921-04-02 Runner and control tool cooling for combustion turbines

Publications (1)

Publication Number Publication Date
DE386276C true DE386276C (en) 1923-12-18

Family

ID=6990827

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB103721D Expired DE386276C (en) 1921-04-02 1921-04-02 Runner and control tool cooling for combustion turbines

Country Status (1)

Country Link
DE (1) DE386276C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447292A (en) * 1943-10-12 1948-08-17 Joseph E Van Acker Gas-actuated turbine-driven compressor
DE863154C (en) * 1943-02-27 1953-01-15 Maschf Augsburg Nuernberg Ag Air-cooled hollow blade for centrifugal machines, especially gas turbines
DE1110469B (en) * 1956-03-28 1961-07-06 Robert Pouit Gas turbine with reaction blades
US3736071A (en) * 1970-11-27 1973-05-29 Gen Electric Bucket tip/collection slot combination for open-circuit liquid-cooled gas turbines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE863154C (en) * 1943-02-27 1953-01-15 Maschf Augsburg Nuernberg Ag Air-cooled hollow blade for centrifugal machines, especially gas turbines
US2447292A (en) * 1943-10-12 1948-08-17 Joseph E Van Acker Gas-actuated turbine-driven compressor
DE1110469B (en) * 1956-03-28 1961-07-06 Robert Pouit Gas turbine with reaction blades
US3736071A (en) * 1970-11-27 1973-05-29 Gen Electric Bucket tip/collection slot combination for open-circuit liquid-cooled gas turbines

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