US1006654A - Turbine valve-gear. - Google Patents

Description

H. J. HA-NZLIK' TURBINE VALVE GEAR.

APPLICATION FILED MAR.22,1909.

1,006,654; Patented 0013.24, 1911.

V/"shnes: IPA/ember;

W? Y Henry Han z'liKi b5 W E A'MENT OFFICE.

HENRY .1. jHAN ZLIK, or LYNN, MASSACHUSETTS, assrdnon' "ro ,ennn'iuilknmcitme Toell whom it concern:

Be it known that I, HENRY J. HANZLIK, a

- citizen of the United States, residing at L'ynn, county of.Es'sex, State of Massachusetts, have invented certain new and useful Improvements in Turbine Valve-Gear, of

I which the followingis a specification.

This invention relates to elastic fluid turbin-es, and itsobject is to improve the valve gear, whereby live steamer other motive fluid can be fed at will to other than thefirst stage of the turbine.

. The construction hereinafter set forth is designed especially .for turbines which are intended to berun'ei'ther condensing 'or noncondensing according to the eircumstances under-whichthey must be operated. Noncondensing operation tends to decrease the output of the machine, so it becomes necessary to provide .for correcting this, even .at the expense of efiiciency- My invention alms to accomplish this by providing a separate set of overload nozzles forthe second. stage, and for other intermediate stages if desired, such overload nozzles being" supplied with steam independently of the regular stage nozzles through pipes controlled by hand valves. When the engine is run condensing, these valves are .kept closed, and the steam passes from stage to stage inthe usual manner. ,But when it becomes necessary to run non-condensing,

- then the hand valves are opened, one or more, as may be necessary, and live steam or other motive fluid is fed directly to the special overloadnozzles of the second stage,

and to other stages if desired.

In the accompanying drawings, Figure 1 is a side elevation of a portion of-a horizontal steam turbine, partly in Section, embodying my improvements 'Fig.- 2 is an end'view' of the steam chest and a portion of the sec 0nd stage nozzles; Fig. 3 is a top plan view of the same.

The usual easing 1 '.the wheels 3 mounted on said shaft. and

carrying the buckets 4. In the drawing; there are two wheels per. stage, the buckets cooperating with the stationary intermediates 5. The nozzles 6 which deliver the steam to the first stage wheels, are fed through the passage 7 to which the steam is admitted by the valves, 8' which are con- Specification O f Letters Patent.

incloses the shaft 2 and TURBINE VALVE-GEAR.

passage 7 to the overload nozzles, compris- Patented Oct: 24,1911. Application filed Marc'h '22, 1909. Serial No. 484,883.

a passage 10 running to a chamber 11, the

entrance to which is controlled by the valve 12, which has a-spindle 13 passing through a stuffing box 14 and provided with a hand wheel 15 outside of the auxiliary steam chest 16. The auxiliary chest is cast with or secured to the main steam chest 17. From the chamber a pipe- 18 conveys the steam to a com-- partment 19 from which one or more special nozzles 20 direct it upon the buckets of the first wheel in the second stage of the turbine. The special nozzles are not those to which the steam is led from the first stage of the machine, which are shown at 21 in Fig; 2. In Fig. 1 the nozzles 6 and 20 appear to be'in the same longitudinal plane, but as a matter of fact they are in different planes; the showing in the drawing having been adopted for the sake of simplicity of illustration.

Two hand valves and pipes 18 are shown in the drawings, but this number is merely illustrative and may be varied at will. Each hand valve controls its own independent chamber 11, pipe ,18 and compartment 19,

integral with the casing. In this flange also are formed the passageways which lead from the first stage to the regular second stage nozzles. 4

The speed governor is contained in a casing 25 and is driven by the low speed shaft 26 through suitable gearing from the main shaft 2. The nozzle valves may be actuated in a variety of ways. In the present illustration of my invention they are actuated. by a connecting rod 27 lever 28 and shaft 29. The action of said parts on the valve stem is controlled by the speed governor through the rod 30, arm 31, lever 32, connecting rod 33' and arm 34. I

In accordancewith the provisions of the patent statutes, I have described the principle of operation of my invention, together paratus shown is only illustrative, and that the. invention can be carried out by other 7 means.

loo

What I claim as new and desire to secure by Letters Patent of the United States, is

1. In a multistage turbine, admission and nozzle, a conduit supplying high pressure fluid to the auxiliary nozzle and separating the inlet of the auxiliary nozzle from the inlet of said regular nozzles, a valve that is common to an admission nozzle and the conduit, a governor tor controlling the valve,

and a handvalve for controlling the passage of motive fluid through the conduit independently of the governor valve.

3. In a multistage elastic fluid turbine having admission nozzles and regular stagenozzles, a steam chest receiving motlve' fluld from a suitable source, a bypass around-the first stage, a hand-operated valve controlling said by-pass, a governor controlled valve that regulates the admission of steam from the steam chestv to theadmission nozzles and the by ass, one or more special nozzles supplied with steam from said bypass, and means separatin the inlets of the special nozzles from the i ets of the regular stage nozzles.

4. In a multistage elastic fluid turbine having admission and regular stage nozzles, the combination with a plurality of governor-controlled valves, of one or inore bying it against the buckets of wheels in an intermediate stage, and means separating the inlets oft-he special nozzles from the inlets of the regular nozzles.

5. In a multistage elastic fluid turbine having admission nozzles and regular stage nozzles, auxiliary stage nozzles, a steam chest receiving motive fluid from a suitable source, conduits for conveying motive fluid from the chest so that-it can flow in arallel to the admission and auxiliary nozz es the conduit or conduits leading to the auxiliary nozzles separatin the inlets of said nozzles from the inlets oi the regular stage nozzles,

and means for controlling the delivery of motive fluid to the nozzles.

6. In a multistage elastic fluid turbine, the combination with the main steam chest, of an auxiliary chest divided into'chanlbers, governor valves-in said main st/eamchest, hand-operated valves controlling the admis: sion of steam from: below this overnorr valves to said chambers, pipes leading from said chambers, and speclal nozzles for' an intermediate stage of the turbine connected with the delivery ends of said pipes.

Inwitness whereof, I have hereunto set my hand this 19th day of March, 1909.'

HENRY J. HANZLIK.

Witnesses:

' CHARLES A. Bnmmnp,

DUGALD McK. MoK LoP.

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