US1489994A - Turbine installation - Google Patents

Description

Aprii 9 1929.

J. H. FELTHOUSEN TURBINE INSTALLATION I Filed Dec. 20 1919 6 Sheets-Sheet 1 A ril 8, 1924. mgwm J. H. FELTHOUSEN TURBINE INSTALLATION Filed Dec. 20, 1919 6 Sheets-Sheet 2 A id 8, 1924. mswm J. H. FELTHOUSEN "URBINI; INSTALLATION Filed Dec. 20, 1919 6 Sheets-Sheet 5 elf tow a;

J. H. FELTHOU$EN TURBINE INSTALLATION 6 Sheets-Shed 5 Filed Dec. 20, 1919 Patented Apr. 192%.

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JOHN H. FELTHO USEN,'OF YORK, PENNSYLVANIA; BIRDIE J. FELTHOUSEN, ADMIN- ISTRATRIX OF SAID JOHN H. FELTHOUSEN, DECEASED, ASSIGNOR T S. MORGAN SMITH COMPANY, OF YORK, PENNSYLVANIA, A. CORPORATION OF PENNSYLVANIA.

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Application filed December 20, 1919. Serial No. 846,258.

To all whom it may concern:

Be it known that 1, JOHN H. FELT- HOUSEN, a citizen of the United States, residing at York, in the county of York and a State of Pennsylvania, have invented new and useful Improvements in Turbine Tnstallations, of which the following is a specification.

This invention relates to turbine instal lations, and particularly to a structure providing for disposition of increased power turbine or wheels in a flume, where the water flows in one direction, and having restricted dimensions which could not, practically,

be enlarged to receive theusual form of supply scroll. The turbine or wheel will be installed at a proper elevation for mini mum head, and the relativevelocities thereof are not affected by a change of head. the installation embodying the features 0 the invention, the water is supplied to the wheel gates from one direction and always fiows in the same direction around and over the turbine and enters the turbine or wheel gates at difi'erent peripheral points with the same velocity relatively to the number of wheel gates supplied. In other Words, each half of the number of wheel gates is separately supplied with water at the same velocity, so that the water supplied to the upstream half of the gates will not afi'ect the downstream half of the gates, or vice versa. The invention further contemplates an installation whereby with the same head of water the inlet to the turbine, or wheelis effected at opposite points with uniform velocity relatively to the number of gates supplied. More specifically and as a preferred organization involving the features of the invention, one or more parts of a complete scroll inlet or water supply may be used, but in all forms or changes the general principle of operation is the same.

In the accompanying drawings, two forms of the installation are illustrated, and it will be understood that further variations in structure with the same general operation may be and are intended tobe adopted to accommodate differing fiume constructions wherein a high power turbine is desired to be installed in restricted area that would not permit the use of 8, complete supply scroll.

. vention.

In the drawings Figure 1 is a cross-sectional elevation of a turbine and usual accessories embodying the features of the invention.

Figure 2 shows a top plan view of a part of a fiume illustrating the improved turbine installation and showin by dash lines the impracticability of utilizing a complete supply scroll therewith.

Figure 3 is a vertical section taken in the plane of the line 33, Figure 2.

Figure 4 is a detail perspective view of a partial scroll supply device particularly embodying one form of the invention and looking towards the inner or wheel engaging side thereof.

Figure 5 is a view similar to Figure 1 embodyin a modification wherein the water issupplied to opposite portions of the wheel and its gates. v

Figure 6 is a horizontal section taken in the plane of the line 6-6, Figure 5 showing parts broken away.

Figure 7 is a section taken in the plane of the line '7-7, Figure 6.

The numeral 5 designates a flume; 6 the runner on the one end of a wheel or power shaft '4'; 8 the wheel gates; and 9 the draft tube. The frame or enclosing casing for the turbine or wheel as shown is of the usual construction. All of these parts are well known and vention, being shown solely to demonstrate the practicability of the features of the in- The turbine installation illustrated by the drawings is also shown as form no part of the present inhaving a generator 10 directly connected to or operatively associated with the turbineshaft, and gate operating means consisting of a shaft 11 attached to the usual gate ring, and actuating means 12 is also shown, the generator 10 and actuating means being disposed on. a generator floor 13. The generator is not included in the features of improvement, being illustrated simply to indicate the complete turbine structures or installations adopted in modern organizations of this character.

Referring particularly to Figures 1, 2, 3 and 4, the essential feature of the invention in this-particular form thereof consists of a part of a complete scroll inlet 14 fitted and secured to a part of the wheel creasing as the number of gates decrease,

thereby maintaining the same relative velocities through the gates and to the wheel throughout the entire installation, and connected to a flange 16 of a tube 17 enclosing the shaft 7. The lower edge 18 of the scroll inlet rests on the bottom or bed of the flume and will be suitably braced and reinforced at all points to give the same the requisite strength. From the maximum elevation of the receiving end 15 of this scroll inlet, the outer and inner walls 19 and 20 are determined by the areas required inside the scroll from its receiving end 15 to its termination 21, to supply one half of the number of gates in the wheel the outer side 19 being convex and having a greater curvature than the inner concave side 20, the latter extending from a point near the center of the wheel and trending outwardly over the top frame of the wheel enclosure and then approximately following the wheel periphery for a short distance and terminating near the inner end of the baffle or deflector 26, which excludes the flow of water rearward. A horizontal supporting ledge or diaphragm 22 extends outwardly from the lower edge of the inner side 20 and gradually converges in a curved line to the vertically reduced terminal of the inlet structure, said ledge or diaphragm engaging the top portion of the wheel frame and servin also as a strengthening partition or guar within the body of the inlet. A supporting or brace leg 23 extends downwardly from the ledge or diaphragm 22 to the bottom or bed of the flume. The sides 19 and 20 have a top diaphragm or closure 24 which gradually slopes downwardly in a spiral contour and converges from the maximum elevated portion of the receiving end 15 to the reduced end or terminal 21 of the inlet scroll. A vertical flanged casting 25 is se cured to the outer peripheral portion of the wheel casing and to one flange thereof the reduced end of the partial scroll inlet 14 is secured and sustained in rigidly applied position. To the remaining flange of this casting the rear end of a concave baflle or deflector 26 is secured, the opposite en 1 of said bafile or deflector being connected t the adjacent side or enclosing wall of the flume. This baflie or deflector extends upwardly to the top of the wheel'casing or housing to prevent the water from passing into the wheel at a point that would result in retardation of the operation of the wheel runner.

The opposite sides of the flume as shown are parallel and resumably in such relation to adjacent umes or other structures as to preclude the practical widening thereof suflicient to permit introduction of the usual full scroll inlet as indicated in dash lines 27. Hence, to meet this obstacle and provide for the installation of a high power turbine is the purpose of the improvement thus far described, and the improvement, as heretofore indicated, prevents the least retardation of rotation of the wheel runner by counteracting water influence supplied to a portion thereof that might otherwise be exposed. It will also be understood that the wheel with the improvements is fully submerged, and a part of the water enters a part of the wheel gates as indicated by the full and dotted line arrows 28, and a part enters the receiving end 15 of the partial scroll inlet and takes the course indicated .by the dotted arrows 29 and in the direction of rotation of the wheel. The water entering the partial scroll inlet, in view of the construction and contour of the latter has the same volume and velocity relatively to the number of gates it supplies throughout its entire course through the said inlet. y

In the form of the improvement shown by Figures 5, 6 and 7, parts similar to those heretofore specified are designated by similar reference characters, and the structural diflerence resides mainly in a double partial scroll inlet consisting of two partial scroll units 30 and 31 in reverse positions, and usable with water continually flowing in one direction thereto and over the same.

This second form of the improvement is shown produced by the use of concrete or cement material in the flume, the wheel being disposed in a central space 32 formed in the opposing portions of the contiguously arranged units 30 and 31. Each of these units 30 and 31 is hollow and has a scrolllike interior contour continuing regularly from maximum dimensions at the inlet 33 thereof to the terminal 3 1 of minimum dimensions. The inlet of the unit 30 faces the direction of flow of the water, and the inlet of the unit 31 is in the rear and receives the water thereinto in a forward direction, the entrance of the water into the inlets of these 'units being clearly indicated by the arrows 35 and 36 and which show that the water enters the wheel gates at all points around the wheel periphery in the direction of rotation of the wheel runner. The water, always flowing in the same direction, enters the wheel gates at opposite points with pro ortionate volume and uniform velocity re atively to the number of wheel gates supplied, so that there is no retardation in operation of the wheel at any part thereof, with the advantageous result that the full power of the water flowing continually in one direction to and over the units 30 and 31 and the Wheel is conserved within the restricted dimensions of the flume which will not permit an enlargement suflicient for installation of the usual complete scroll supply structure. The same principle is involved in this second structure as in that first described, namely, the water flowing downstream supplying the upstream half of the gates and a part of the water flowing over the turbine wheel and entering the wheel in a reverse direction and supplying the remaining half of the gates with proportionate volume and uniform velocity relatively to the two half gate series supplied, and thereby avoiding a counteracting influence of the water operating on the onehalf series of gates relatively to the remaining one-half series of gates.

The second form of the improvement involving the two partial scroll units in opposition is shown formed of concrete or cement, but it will be understood that these units may be otherwise produced or be formed of other material. As an incidental feature, a cover or partition plate 37 is applied above the wheel space or seat defined between the units 30 and 31, to prevent the water from eddying or churning over and adjacent to the top of the wheel casing or housing.

Though the two forms of installations em- 'bodying the features of the invention have 7 been described as specially adapted for disposition in a flume wherein the water continually flows in one direction, it is proposed to install the partial scro-ll' supply means either in its single or double form. as

hereinbefore explained and in reasonable and permissible equivalent forms in other water supply flumes or the like wherein the water may not flow in one direction and to which the improvements may be operatively applicable.

What is claimed as new is 1. A turbine installation for a width-restricted flume, comprising a submerged turbine having a side inlet with controlling gates and rotatable driving means therein,

and water inlet directing and flow controlling means operatively disposed relatively to and completely enclosing part of the side inlet of the turbine to supply the water to one-half groups of the driving means and thereby proportionately supply water to all parts of the driving means to regularly rotate said latter means in one direction and preventing water from entering the turbine at any point in a direction opposed to the direction of rotation of the driving means.

2. A turbine installation for a width-re-.

stricted flume, consisting of a turbine submerged in the flume and comprising gates for controlling entrance of water thereinto and to a rotary driven means, and water enclosing and confining supply means and applied over and entirely enclosing a portion of the periphery and gates and controlling separate supply of water to different peripheral portions and gates of the turbine to engage and operate the rotary driven means regularly in one direction with the same velocity relatively to the number of gates supplied and also excluding entrance of water into the periphery at any point in a direct-ion that would have a counteracting influence on the rotary driven means.

3. A turbine installation for a width-restricted flume, comprising a submerged turbine having a closed top and side inlet and controlling gates and rotatable drivin means therein, and water inlet directing and flow controlling means extending outwardly beyond the periphery of the closed top over a portion of the side inlet to provide a scroll structure of less extent than the usual structures of this type to supply the water to onehalf groups of the driving means and thereby proportionately supply water to all parts of the driving means to regularly rotate said latter means in one direction and preventing water from entering the turbine side inlet at any point in a direction opposed to the direction of rotation of the driving means.

In testimony whereof I have hereunto set my hand in'presenc'e of a subscribing witness.

Witness CHAS. S. Hymn.

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