DE938311C - Device for recycling the stuffing box leakage steam from turbines - Google Patents

Device for recycling the stuffing box leakage steam from turbines

Info

Publication number
DE938311C
DE938311C DEB32426A DEB0032426A DE938311C DE 938311 C DE938311 C DE 938311C DE B32426 A DEB32426 A DE B32426A DE B0032426 A DEB0032426 A DE B0032426A DE 938311 C DE938311 C DE 938311C
Authority
DE
Germany
Prior art keywords
stuffing box
leakage steam
turbines
box leakage
turbine
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
DEB32426A
Other languages
German (de)
Inventor
Hans-Joachim Dipl-In Brockmann
Erich Dipl-Ing Humann
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.)
Borsig GmbH
Original Assignee
Borsig GmbH
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 Borsig GmbH filed Critical Borsig GmbH
Priority to DEB32426A priority Critical patent/DE938311C/en
Application granted granted Critical
Publication of DE938311C publication Critical patent/DE938311C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
    • 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
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Turbines (AREA)

Description

Die Erfindung betrifft, eine Einrichtung zur Nutzbarmachung des . Stopfbuchsleckdampfes bei Turbinen.The invention relates to a device for utilizing the. Stuffing box leakage steam in turbines.

Bei Turbinen läßt sich trotz sorgfältigster Ausbildung der Stopfbuchsen ein Durchblasen des, Arbeitsmittels nicht vermeiden. Dieser Stopfbuchsleckdampf wird bei .Kondensationsturbinen üblicherweise einer niederen Turbinenstufe zugeführt und dort entspannt. Bei Gegendruckturbinen kann der Stopfbuchsleckdampf in den meisten Fällen jn einem Niederdrucknetz nutzbringend verwerfet werden. Es gibt jedoch Fälle, in denen ein solches 4 Netz nicht vorhanden ist oder in denen die üb- lichen Verfahren zur Verwertung des Stopfbuchsleckdampfes wärmetechnisch unbefriedigend sind. Dies trifft besonders zu bei Turbinen mit hohem Gegendruck. Um den Stopfbuchsleckdampf solcher Maschinen nutzbringend zu verwerten und damit die Leistung der Maschinen zu verbessern, ist nach der Erfindung auf der Maschinenwelle eine Stopfbuchsleckdampfturbinenstufe angeordnet.In the case of turbines, despite the most careful design of the stuffing boxes, blowing through of the working medium cannot be avoided. In the case of condensation turbines, this leakage steam from the stuffing box is usually fed to a lower turbine stage and expanded there. In the case of back pressure turbines, the gland leakage steam can in most cases be usefully discarded in a low pressure network. There are, however, cases in which such a network does not exist or in which the usual procedures for utilizing the stuffing box leakage steam are thermally unsatisfactory. This is especially true for turbines with high back pressure. In order to utilize the stuffing box leakage steam of such machines in a beneficial way and thus to improve the performance of the machines, a stuffing box leakage steam turbine stage is arranged according to the invention on the machine shaft.

Diese Stopfbuchsleckdampfturbine kann am vorderen oder hinteren Ende der M"ä§schine-nnerha:lb-' des Gehäuses angeordnet sein.This gland leakage turbine can be at the front or rear end the machine-nnerha: lb- 'of the housing be arranged.

In der Abbildung ist ein Ausführungsbeispiel einer erfindungsgemäßen Einrichtung im Schnitt dargestellt.In the figure is an embodiment of an inventive Facility shown in section.

Es bezeichnet i den Laufkranz der letzten .Stufe, 2 die hintere Labyrinthstopfbuchse, 3 die aus Leit-, schaufeln und Laufrad bestehende Stopfbuchsleckdarnpfturbine, q. eine Umführungsleitung, 5 ein Entlastungsventil, 6 das Turbinengehäuse.It denotes i the tread of the last stage, 2 the rear labyrinth stuffing box, 3 the gland leakage turbine consisting of guide vanes, blades and impeller, q. a bypass line, 5 a relief valve, 6 the turbine housing.

Der aus der hinteren Stopfbuchse 2 austretende Leckdampf wird zusammen mit dem durch eine nicht dargestellte Leitung herangeführten Leckdampf der vorderen Stopfbuchse der auf der Maschinenwelle angeordneten Stopfbuchslecledampf.-turbine zugeführt und. dort entspannt. Infolge der Anordnung der Stopfbuchsleckdampfturbine 3 - innerhalb des Gehäuses 6 kann der aus der benäch--baxten Stopfbuchse .2 austretende Leckdampf unmittelbar in den Druckraum der Stopfbuchsleckdampfturbine treten; gleichzeitig werden Wärmeverluste vermieden und es wird an Baulänge gespart. Der Raum vor der Stopfbuchsleckdampfturbine ist mit dem Raum dahinter durch die Umgehungsleitung q. verbunden. In der Leitung q. ist ein ölgesteuertes Schnellöffnungsventil angeordnet, das bei normalem Betrieb geschlossen ist. Wird die Turbine abgestellt, so wird gleichzeitig das Ventil s automatisch geöffnet, um zu verhindern, daß der aus dem Gegendrucknetz zurückdrückende Dampf die. Turbine über die Stopfbuchsleckdampfturbine zweiter antreibt: -The leakage steam emerging from the rear stuffing box 2 is fed to the front stuffing box of the stuffing boxlecledampf.-turbine arranged on the machine shaft together with the leakage steam brought in through a line (not shown). relaxed there. As a result of the arrangement of the stuffing box leakage steam turbine 3 - within the housing 6, the leakage steam emerging from the adjacent stuffing box .2 can enter the pressure chamber of the stuffing box leakage steam turbine directly; At the same time, heat losses are avoided and overall length is saved. The space in front of the stuffing box leakage steam turbine is connected to the space behind it through the bypass line q. tied together. In the line q. an oil-controlled quick-opening valve is arranged, which is closed during normal operation. If the turbine is switched off, the valve s is automatically opened at the same time in order to prevent the steam pushing back from the counterpressure network from the. Turbine via the stuffing box leakage steam turbine drives the second: -

Claims (3)

PATENTANSPRÜCHE: i. Einrichtung zur Verwendung des Stopfbuchsleckdampfes bei Turbinen, dadurch gekennzeichnet, daß auf der Maschinenwelle eine Stöpfbuchsleckdampfturbine angeordnet ist. PATENT CLAIMS: i. Device for using the stuffing box leakage steam in the case of turbines, characterized in that a stuffing box leakage steam turbine on the machine shaft is arranged. 2. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Stopfbuchsleckdampfturbine innerhalb des Gehäuses der Hauptmaschine angeordnet ist. 2. Device according to claim i, characterized in that the Stuffing box leakage steam turbine is arranged within the housing of the main engine. 3. Einrichtung nach- Anspruch 2, dadurch gekennzeichnet, daß der Raum vor der Stopfbuchsleckdampfturbine mit dem Raum dahinter "durch eine Umführürigsleitung mit einem Entlastungsventil verbunden ist, welches gleichzeitig mit dein Abschalten der Turbine automatisch geöffnet wird.3. Device according to claim 2, characterized in that the space in front of the stuffing box leakage steam turbine with the space behind "through a bypass duct with a relief valve which is automatically connected at the same time as you switch off the turbine is opened.
DEB32426A 1954-09-01 1954-09-01 Device for recycling the stuffing box leakage steam from turbines Expired DE938311C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB32426A DE938311C (en) 1954-09-01 1954-09-01 Device for recycling the stuffing box leakage steam from turbines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB32426A DE938311C (en) 1954-09-01 1954-09-01 Device for recycling the stuffing box leakage steam from turbines

Publications (1)

Publication Number Publication Date
DE938311C true DE938311C (en) 1956-01-26

Family

ID=6963751

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB32426A Expired DE938311C (en) 1954-09-01 1954-09-01 Device for recycling the stuffing box leakage steam from turbines

Country Status (1)

Country Link
DE (1) DE938311C (en)

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