EP0155581B1 - Topfgehäuse für eine Turbomaschine - Google Patents

Topfgehäuse für eine Turbomaschine Download PDF

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Publication number
EP0155581B1
EP0155581B1 EP85102392A EP85102392A EP0155581B1 EP 0155581 B1 EP0155581 B1 EP 0155581B1 EP 85102392 A EP85102392 A EP 85102392A EP 85102392 A EP85102392 A EP 85102392A EP 0155581 B1 EP0155581 B1 EP 0155581B1
Authority
EP
European Patent Office
Prior art keywords
cover
pressure
housing
casing
teeth
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 - Lifetime
Application number
EP85102392A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0155581A3 (en
EP0155581A2 (de
Inventor
Stephen Medgyesy
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.)
Sulzer AG
Original Assignee
Gebrueder Sulzer AG
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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Publication of EP0155581A2 publication Critical patent/EP0155581A2/de
Publication of EP0155581A3 publication Critical patent/EP0155581A3/de
Application granted granted Critical
Publication of EP0155581B1 publication Critical patent/EP0155581B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/26—Double casings; Measures against temperature strain in casings
    • F01D25/265—Vertically split casings; Clamping arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/063—Multi-stage pumps of the vertically split casing type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid pumps

Definitions

  • the invention relates to a high-pressure turbomachine with a pot housing, which is closed at the end with a pressure cover, wherein sealing elements between the housing and cover seal the interior of the machine from the environment;
  • High-pressure pumps and compressors of the type mentioned are preferably used in high-pressure pumps and compressors, and turbines with axial and radial blading are used in machines in which the invention is preferably used.
  • the housing or pressure covers which usually seal such pump housings from the drive end, are provided with a flange and fastened to the housing with the aid of large expansion screws - and possibly nuts.
  • Elastic flat seals or O-rings which are arranged between the cover and the housing, serve as sealing elements for sealing the pump pressure to the outside (CH-PS 562 405).
  • Bayonets are also used to close containers or boilers (DE-C-503 860) and for small low-pressure centrifugal pumps in which the pump housing is freely attached to a drive motor on the floor without its own support (DE-A-19 59 087) -Closures known.
  • the component to be attached is connected to the housing by turning, and at the same time it is pressed against sealing elements as a result of an axial displacement.
  • the pressure cover and the pot housing of a high-pressure turbomachine cannot be closed in this way, since such a cover is used to seal the high pressure the necessary large axial force could hardly be solved after a short period of operation.
  • the object of the invention is therefore to provide a high-pressure turbomachine with a simple, light and space-saving design for the cover and housing, in which the seals can be replaced without dismantling the cover, and in which the machine is still removed and installed or the cover, the seals are not subjected to shear loads.
  • the end of the pot housing receiving the pressure cover has a radially inwardly projecting toothing in its opening for the insertion of the machine and the pressure cover corresponding in diameter to the inside width of the housing toothing has a radially outwardly directed toothing, whereby the arrangement of the teeth in the circumferential direction and their dimensions enable the cover to be inserted into the housing, and in addition that a flange ring enclosing the pressure cover is fastened to the end face of the housing with the interposition of sealing elements; the sealing elements, which each form a radial and an axial seal in the example shown, consist, for example, of elastomeric O-rings or metallic C-rings, as well as flange or spiral seals of a known type.
  • the hydraulic pressure is absorbed by this tooth connection;
  • the pressure is sealed, for example, by radial and axial O-rings, which are only inserted after the insertion unit consisting of rotor, stator and housing cover and after the above-mentioned rotation of the cover and are held by a flange ring.
  • protruding flanges and large expansion screws can be omitted, which means that the pressure cover and the housing can be made smaller than before.
  • the risk of damage to the sealing rings is practically eliminated.
  • inserting the seal in the event of leakage no longer requires removal of the housing cover.
  • Axial through holes in at least individual teeth of the pressure cover are necessary in order to enable the rotor, stator and pressure cover to be assembled into a slide-in unit with the aid of bolts screwed through these holes in the stator of the pump.
  • axial through bores in the housing teeth when dismantling the housing and the cover allow the teeth of the pressure cover and the housing, which are resting on one another and possibly firmly connected to one another, to be separated from one another by means of a hydraulic pressure medium before they are rotated against one another to open them.
  • the pot housing 1 (Fig. 1) takes on the shaft 2, on which one of the impellers 3 and a pressure relief piston 4 are attached, a stage housing 5 and the stator 6 of the last stage. It is closed to the right in FIG. 1 by a housing or pressure cover 7, into which a pressure compensation line 8 opens. In the inner cavity of the pressure cover 7 near the shaft, a relief bushing 9 surrounding the relief piston 4 is accommodated and a mechanical seal 10 is shown schematically.
  • the edge of the inner cavity 11 of the housing 1 is provided with a toothing projecting radially inwards, the teeth 12 of which are evenly distributed on the circumference and spaced apart.
  • Every second tooth 12 is provided with a bore 13 located eccentrically in it; As already mentioned, this serves to connect a pressure line of a hydraulic system (not shown), with the aid of which the teeth 12 are lifted off from the teeth 14 (FIG.
  • the teeth 14 are distributed radially outwards projecting on the outer circumference of the pressure cover, the diameter of which corresponds to the inside width of the housing teeth.
  • the shape and position of the teeth 12 and 14 are matched to one another in such a way that the teeth 14 of the pressure cover 7 are inserted into the housing between the teeth 12 and, after the pressure cover 7 is detached from the stator 5, 6, are fixed by rotation behind them.
  • Through bores 15 are also provided in the teeth 14, through which bolts 16 (FIG. 1) pass when the rotor 2, 3, 4, stator 5, 6, 9 and pressure cover 7 are joined together to form an insertion unit.
  • bolts 16 FIG. 1
  • FIG. 1 To fix the cover 7 in the insertion unit, these are screwed into tabs 17 provided with threaded holes 18 on the stator 6 of the last stage.
  • these screws 16 are loosened before the teeth 12 and 14 are brought into engagement with one another by the aforementioned rotation after the insertion of the unit.
  • annular groove 19 is inserted in the circumference of the pressure cover 7 and in the end face of the housing 1, in each of which an O-ring 20 is inserted as an elastic sealing element.
  • the sealing surfaces interacting with this are formed by a flange ring 21 closing the gap between the housing 1 and the pressure cover 7, which is placed on the housing 1 and fastened with screws 22 which engage in threaded bores 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
EP85102392A 1984-03-19 1985-03-04 Topfgehäuse für eine Turbomaschine Expired - Lifetime EP0155581B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1370/84A CH662865A5 (de) 1984-03-19 1984-03-19 Topfgehaeuse fuer eine kreiselpumpe.
CH1370/84 1984-03-19

Publications (3)

Publication Number Publication Date
EP0155581A2 EP0155581A2 (de) 1985-09-25
EP0155581A3 EP0155581A3 (en) 1987-05-27
EP0155581B1 true EP0155581B1 (de) 1991-05-08

Family

ID=4208826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102392A Expired - Lifetime EP0155581B1 (de) 1984-03-19 1985-03-04 Topfgehäuse für eine Turbomaschine

Country Status (8)

Country Link
US (1) US4701103A (enrdf_load_stackoverflow)
EP (1) EP0155581B1 (enrdf_load_stackoverflow)
JP (1) JPS60212697A (enrdf_load_stackoverflow)
BR (1) BR8501195A (enrdf_load_stackoverflow)
CH (1) CH662865A5 (enrdf_load_stackoverflow)
DE (2) DE3410931C1 (enrdf_load_stackoverflow)
MX (1) MX161037A (enrdf_load_stackoverflow)
NO (1) NO158073C (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4932836A (en) * 1988-06-10 1990-06-12 Bw/Ip International, Inc. Pump with heat exchanger
DE4230715A1 (de) * 1992-09-14 1994-03-17 Klein Schanzlin & Becker Ag Entlastungswasserrückführung
US5503490A (en) * 1994-05-13 1996-04-02 United Technologies Corporation Thermal load relief ring for engine case
US5807086A (en) * 1996-08-16 1998-09-15 The Duriron Company, Inc. Seal chamber splash guard
DE102012223462B3 (de) * 2012-12-17 2013-08-08 Siemens Aktiengesellschaft Backup Dichtung in Kompaktbauweise bei einem Gehäuse einer Strömungsmaschine
DE102013208357B3 (de) * 2013-05-07 2014-07-03 Siemens Aktiengesellschaft Anordnung mit einer Dichtung

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE516079C (de) * 1931-01-17 Maffei Schwartzkopff Werke G M Mehrstufige Kreiselpumpe
DE503860C (de) * 1930-07-30 I G Farbenindustrie Akt Ges Kesselverschluss
US1128474A (en) * 1913-12-31 1915-02-16 Randolph N Martz Hose-coupling.
US1873621A (en) * 1929-10-17 1932-08-23 American Cast Iron Pipe Co Pipe joint
US1947743A (en) * 1931-12-18 1934-02-20 Walter G Schoeneck Coupling connection for ensilage conduits
US1962400A (en) * 1932-03-04 1934-06-12 Mcwane Cast Iron Pipe Company Pipe joint
US2296710A (en) * 1938-04-23 1942-09-22 Westinghouse Electric & Mfg Co High pressure sealing head
US2376566A (en) * 1944-04-01 1945-05-22 George V Woodling Closure means for cylinders
US2647768A (en) * 1949-05-19 1953-08-04 Cleveland Brass Mfg Company Tank fill connection
DE963523C (de) * 1953-09-01 1957-05-09 Siemens Ag Doppelmantelturbine
US2818193A (en) * 1954-10-26 1957-12-31 Griscom Russell Co Head closure construction for heat exchangers
FR1568956A (enrdf_load_stackoverflow) * 1968-03-04 1969-05-30
DE1959087A1 (de) * 1969-11-25 1971-05-27 Hanning Elektro Werke Gehaeuse fuer Motorpumpen
BE755137A (nl) * 1970-04-07 1971-02-01 Lummus Nederland N V Inrichting voor het afdichtend afsluiten van een metalen drukvat, in het bijzonder van een eindkast van een warmeuitwisselaar
FR2094402A5 (enrdf_load_stackoverflow) * 1970-06-19 1972-02-04 Sedelem
IT955877B (it) * 1972-05-26 1973-09-29 Nuovo Pignone Spa Sistema di chiusura ermetica di un corpo cilindrico soggetto ad alte pressioni interne in particolare della cassa di un compressore cen trifugo ad elevata pressione
CH562405A5 (en) * 1973-02-14 1975-05-30 Sulzer Ag Multi-or- single-stage centrifugal pump - has device driven by pump shaft for additional pressure intensification of part flow
US3934752A (en) * 1974-01-17 1976-01-27 Carrier Corporation End wall closure apparatus
US3874814A (en) * 1974-04-05 1975-04-01 Carrier Corp Closure key apparatus
CH640608A5 (en) * 1979-09-07 1984-01-13 Sulzer Ag Centrifugal pump having a double-entry, bispiral casing and an axially removable inner block
JPS5783697A (en) * 1980-11-12 1982-05-25 Hitachi Ltd Barrel type casing
US4347945A (en) * 1981-05-05 1982-09-07 Borg-Warner Corporation Pump closure fastening means

Also Published As

Publication number Publication date
JPS60212697A (ja) 1985-10-24
US4701103A (en) 1987-10-20
DE3582741D1 (de) 1991-06-13
NO158073C (no) 1988-07-06
JPH0442560B2 (enrdf_load_stackoverflow) 1992-07-13
BR8501195A (pt) 1985-11-12
NO851075L (no) 1985-09-20
EP0155581A3 (en) 1987-05-27
MX161037A (es) 1990-07-12
EP0155581A2 (de) 1985-09-25
CH662865A5 (de) 1987-10-30
NO158073B (no) 1988-03-28
DE3410931C1 (de) 1985-09-26

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