US3923418A - Hydraulic turbine installation and method of assembling the turbine headcover therein - Google Patents
Hydraulic turbine installation and method of assembling the turbine headcover therein Download PDFInfo
- Publication number
- US3923418A US3923418A US536031A US53603174A US3923418A US 3923418 A US3923418 A US 3923418A US 536031 A US536031 A US 536031A US 53603174 A US53603174 A US 53603174A US 3923418 A US3923418 A US 3923418A
- Authority
- US
- United States
- Prior art keywords
- diameter
- headcover
- pit
- turbine
- half section
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/02—Casings
- F03B11/025—Covers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- ABSTRACT h A hydraulic turbine installation and method of assent [52] US. Cl .1 415/219 C, 29/4O1,42l95O//2502l, bung a turbine headcover composed of two half S60 [51] Int. C12 F011) 25/24 FOID 5H0 tions in the turbine pit.
- the opening into the pit at the Field 290/52 29/4Ol 156 top thereof is smaller than the dlameter of the head- 219 R 0 i cover.
- the turblne thrust bearmg flange located in the pit below the opening defines an inside [56] References Cited diameter which is also less than the diameter of the headcover.
- diametrically opposed slots are UNITED STATES PATENTS provided in the thrust bearing flange having a span therebetween which is greater than the diameter of 1 3 536? the headcover.
- This arrangement permits lowering a 2:897:375 7/1959 r: 290/52 headcover half sect1on with 1ts d1ameter d1mens1on 2,945,960 7/1960 Obrist 415/201 dlsposed vemcany, thmugh the P oPenmg 3263206 8/1966 swinglehurstv 415/201 pit and then rotatmg the half section into the thrust 3,738,732 /1975 Fraser 5 9 bearing slots so that the diameter dimension is dis- 3,793,698 2/1974 Goings 29/401 posed horizontally. From this position. means are pro- United Kingdom 417/360 vided to rotate and lower each turbine half section onto its pit mounting.
- This invention pertains to hydraulic turbine generators in general, and more particularly, to a structure and method for installing a turbine headcover into the turbine pit.
- the headcover of the turbine is usually substantially annular in shape and is usually the element of the turbine which is largest in diameter.
- the headcover is supported in the turbine pit above the runner and in turn usually supports the upper wicket gate trunnions, the turbine main 'guide bearing and other turbine elements.
- the machine thrust bearing is usually supported on an annular flange about the interior of the pit above the headcover.
- the generator stator is usually supported on a flange provided about the top opening of the pit.
- a more specific object of the subject invention is to provide structure of the hereinbefore-described type wherein diametrically opposed slots are provided in the thrust bearing support flange which have a span therebetween equal to the diameter of the assembled headcover.
- a further object of the subject invention is to provide a method of assembling the half sections of a turbine headcover of the hereinbefore-described type wherein the half sections are rotated through the slots provided in the thrust bearing support flanges to the proper headcover mounting position.
- FIGS. 1 through show in pictoral form the structure and procedure of practicing the invention.
- annular flange 8 is provided at the opening 9 to the pit 6.
- This annular flange 8 defines an inside diameter which is considerably smaller than the diameter of the pit 6.
- the generator stator (not shown) is, in most instances, supported by this annular flange.
- Spaced downwardly from and on the inside of the pit 6 are a plurality of annular flanges 11 which provide a support for the turbine-generator thrust bearing (not shown).
- the inside diameter defined by the thrust bearing flanges 11 is also smaller than the diameter of the pit 6 and as herein shown may be still smaller than the diameter of the generator stator mounting flange 8.
- the ends of the thrust bearing flanges 11 define therebetween openings or slots 12 and 13 (best shown in FIG. 9 which is a plan view) which are diametrically opposed from one another.
- the span between opposite openings 12 and 13 is, in this instance, equal to the diameter of the pit 6.
- Two wicket gates 14 and 16 are herein schematically shown to indicate the mounting location of the turbine headcover.
- the turbine headcover is composed of two half sections 17 and 18. Each half section is provided with a diameter dimension 19 and a radius dimension 21 which is equal to the diameter and radius of the asembled headcover.
- each half section is provided with a number of strategically located lifting points which will be described as an explanation of the method of assembly is disclosed.
- Two conventional hoists or cranes of sufficient capacity are required above the pit.
- an additional hoist is required from below the pit as is shown in FIGS. 5 through 7.
- the headcover half section 17 is connected to the hoists which for purposes of description may be referred to as the main hoist connected to cable 22 and the auxiliary hoist controlling the cable 23.
- the main cable 22 is connected to the lifting point 24 which is substantially at the center of the diameter dimension 19 of the headcover half section.
- the auxiliary cable 23 is connected to the lifting point 26 which is at one end of the half section diameter dimension 19.
- the half section can be pivoted so that the diameter dimension 19 is substantially vertically disposed and the radius dimension 21 is substantially horizontally disposed. In this position, the half section can be lowered through the opening 9 defined by the flange 8 and also the opening defined by the thrust bearing flanges 11. This position is shown in FIG. 1.
- the headcover half section 17 is located in alignment with the diametrically opposed slots 12 and 13 between the ends of the thrust bearing flanges 11. As shown in FIG. 2, the half section 17 is rotated about the main lifting point 24 by lowering the auxiliary cable 23 until the half section 17 attains the position shown in FIG. 3. In this position, the diameter dimension 19 is in the horizontal position and the radius dimension 21 is vertically disposed. When in the position shown in FIG. 3, stationary cables 26 and 27 are connected to the half section 17 to support it while the main and auxiliary hoist connections are rearranged. Referring to FIG. 4, which is an end view of FIG. 3, the main cable 22 is now connected to a lifting point 28 on the surface 29 of the headcover at a point in alignment with substantially the midpoint of the diameter dimension 19 of the half section. The auxiliary cable 23 is connected to the lifting point 24.
- a secondary hoist cable 31 is connected through a lifting point 32 provided in the superstructure 7 of the hydro installation and to a connecting point 33 on the headcover half section 17.
- the secondary hoist is operated to swing or laterally move the half section 17 toward the lifting point 32.
- the auxiliary hoist 23 is lowered to permit the half section to pivot about the connecting point 28 of the main cable toward the horizontal position shown in FIG. 7.
- all three hoists are lowered equally to permit the half section to be lowered onto the wicket gates 14 and onto the blocks 33 as shown in-FIG. 8.
- the three hoists are disconnected from the half section 17 and the other half section 18 is lowered into place in the same manner as shown in FIG. 8. Once half section 18 is moved into alignment with section 17, they are rigidly connected together. The main hoist is then attached to the assembled headcover as shown in FIG. 10 and the assembled headcover is lowered into its permanent position above the turbine runner (not shown).
- a hydraulic turbine generator installation comprising in combination:
- annular flange about the top of said pit defining an opening having a second inside diameter less than said first diameter
- a substantially annular headcover composed of two half sections having an assembled outside diameter only slightly less than said first diameter but greater than said second diameter, each halfsection having an equal radius less than said second diameter;
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
Abstract
Description
Claims (3)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US536031A US3923418A (en) | 1974-12-23 | 1974-12-23 | Hydraulic turbine installation and method of assembling the turbine headcover therein |
CA232,104A CA1040056A (en) | 1974-12-23 | 1975-07-23 | Hydraulic turbine installation and method of assembling the turbine headcover therein |
GB42259/75A GB1478727A (en) | 1974-12-23 | 1975-10-15 | Hydraulic turbine installation and method of assembling a turbine head-cover therein |
JP50133941A JPS5175838A (en) | 1974-12-23 | 1975-11-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US536031A US3923418A (en) | 1974-12-23 | 1974-12-23 | Hydraulic turbine installation and method of assembling the turbine headcover therein |
Publications (1)
Publication Number | Publication Date |
---|---|
US3923418A true US3923418A (en) | 1975-12-02 |
Family
ID=24136844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US536031A Expired - Lifetime US3923418A (en) | 1974-12-23 | 1974-12-23 | Hydraulic turbine installation and method of assembling the turbine headcover therein |
Country Status (4)
Country | Link |
---|---|
US (1) | US3923418A (en) |
JP (1) | JPS5175838A (en) |
CA (1) | CA1040056A (en) |
GB (1) | GB1478727A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4884326A (en) * | 1989-03-20 | 1989-12-05 | Arc Plan, Inc. | Method and apparatus for hydraulic turbine rotation for repair |
US5148635A (en) * | 1989-08-22 | 1992-09-22 | Arc Plan, Inc. | Method and apparatus hydraulic turbine repair |
EP0786594A3 (en) * | 1996-01-23 | 2000-12-20 | Kabushiki Kaisha Toshiba | Francis turbine assembly |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1802870A (en) * | 1931-04-28 | Prime mover and method of assembling and dismantling- the same | ||
US1923126A (en) * | 1932-06-16 | 1933-08-22 | Allis Chalmers Mfg Co | Rotary macuine-peime mover power unit and method of assembling and dismantling the same |
US2897375A (en) * | 1955-11-30 | 1959-07-28 | Creusot Forges Ateliers | Low-head vertical-shaft hydro-electric set |
US2945960A (en) * | 1956-05-19 | 1960-07-19 | Escher Wyss Ag | Hydraulic turbine plant having a concrete spiral housing |
US3268206A (en) * | 1962-10-19 | 1966-08-23 | Ass Elect Ind | Steam turbines |
US3738782A (en) * | 1971-09-01 | 1973-06-12 | Worthington Corp | Centrifugal pump with concrete volute |
US3793698A (en) * | 1973-01-08 | 1974-02-26 | I Goings | Method of repairing cavitation damage on a hydraulic turbine |
-
1974
- 1974-12-23 US US536031A patent/US3923418A/en not_active Expired - Lifetime
-
1975
- 1975-07-23 CA CA232,104A patent/CA1040056A/en not_active Expired
- 1975-10-15 GB GB42259/75A patent/GB1478727A/en not_active Expired
- 1975-11-07 JP JP50133941A patent/JPS5175838A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1802870A (en) * | 1931-04-28 | Prime mover and method of assembling and dismantling- the same | ||
US1923126A (en) * | 1932-06-16 | 1933-08-22 | Allis Chalmers Mfg Co | Rotary macuine-peime mover power unit and method of assembling and dismantling the same |
US2897375A (en) * | 1955-11-30 | 1959-07-28 | Creusot Forges Ateliers | Low-head vertical-shaft hydro-electric set |
US2945960A (en) * | 1956-05-19 | 1960-07-19 | Escher Wyss Ag | Hydraulic turbine plant having a concrete spiral housing |
US3268206A (en) * | 1962-10-19 | 1966-08-23 | Ass Elect Ind | Steam turbines |
US3738782A (en) * | 1971-09-01 | 1973-06-12 | Worthington Corp | Centrifugal pump with concrete volute |
US3793698A (en) * | 1973-01-08 | 1974-02-26 | I Goings | Method of repairing cavitation damage on a hydraulic turbine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4884326A (en) * | 1989-03-20 | 1989-12-05 | Arc Plan, Inc. | Method and apparatus for hydraulic turbine rotation for repair |
US5148635A (en) * | 1989-08-22 | 1992-09-22 | Arc Plan, Inc. | Method and apparatus hydraulic turbine repair |
EP0786594A3 (en) * | 1996-01-23 | 2000-12-20 | Kabushiki Kaisha Toshiba | Francis turbine assembly |
CN1100205C (en) * | 1996-01-23 | 2003-01-29 | 东芝株式会社 | Hydraulic machinery |
Also Published As
Publication number | Publication date |
---|---|
GB1478727A (en) | 1977-07-06 |
CA1040056A (en) | 1978-10-10 |
JPS5175838A (en) | 1976-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4117676A (en) | Incorporable hydromotive assembly | |
KR102573823B1 (en) | Improved reversible pump-turbine device | |
US4755690A (en) | Hydroelectric power installation and turbine generator apparatus therefor | |
CA3127618C (en) | Vertical axis wind turbine | |
US3923418A (en) | Hydraulic turbine installation and method of assembling the turbine headcover therein | |
EP0786594B1 (en) | Francis turbine assembly | |
US4278895A (en) | Hydroelectric power station | |
EP0561619B2 (en) | Hydroelectric machines and their installation | |
US2897375A (en) | Low-head vertical-shaft hydro-electric set | |
US4380401A (en) | Bearing support | |
US2722612A (en) | Vertically disposed hydroelectric turbine-generator installation | |
CA1171250A (en) | Rotor withdrawal arrangement for bulb generators | |
US4955789A (en) | Duplex turbine replacement unit and method | |
US4063675A (en) | Method of fabricating a crown plate for Francis-type hydraulic turbine runner | |
US4050987A (en) | Rotating plug bearing and seal | |
CN105422369A (en) | Vertical mixed-flow type water turbine generator set structure | |
US2875979A (en) | Hydroelectric turbo-generator installation | |
CN104747379A (en) | Horizontal rotation type wind generator device | |
US2701171A (en) | Vertical flanged shaft and thrust bearing removable together from bearing support | |
Headland | Blaenau Ffestiniog and other medium-head pumped storage schemes in Great Britain | |
JP2000177978A (en) | Temporary crane device and work method with it | |
US3186684A (en) | Device for measurement of the bottom runner clearance in a reaction type hydraulic turbine | |
CA1064367A (en) | Circular stay ring for rotary fluid machine | |
US1728906A (en) | Hydraulic machine | |
SU66155A1 (en) | Vertical Shaft Generator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONNECTICUT NATIONAL BANK THE, A NATIONAL BANKING Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001 Effective date: 19830329 Owner name: WOODS KATHLEEN D., AS TRUSTEE Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001 Effective date: 19830329 |
|
AS | Assignment |
Owner name: ALLIS-CHALMERS HYDRO, INC., A DE CORP Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. SUBJECT TO CONDITIONS RECITED;ASSIGNOR:ALLIS-CHALMERS CORPORATION;REEL/FRAME:004431/0128 Effective date: 19850626 |
|
AS | Assignment |
Owner name: VOITH HYDRO, INC., A CORP OF DE. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIS-CHALMERS HYDRO, INC.;REEL/FRAME:004683/0922 Effective date: 19860925 |
|
AS | Assignment |
Owner name: ALLIS-CHALMERS CORPORATION Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CONNECTICUT NATIONAL BANK, THE;REEL/FRAME:004684/0746 Effective date: 19870325 |