US1174602A - Steam-accumulator. - Google Patents

Description

creanme Henna massoni-or isos-sv, resieif convenir, cenrcenri Specification of Letters atent,

' Application ilc S'ffcvember i935. o. 58,9%.

To cl3 wftom 'it may concern Be it known that l, CHARLES Hanny NAYLoR, a subject of the King of Great Britaim residing at Rugby, in the county of 1Warvviclvshire England, have invented certain new and useful linprovements in Steamuiccumulatcrs, of which the following is a specification.

The present invent-ion relates to steam accumulator-s of the expansible receiver type for receiving an intermittent supply oli ex haust steam Atrom a reciprccatingengine for exanple,- anol delivering it at a constant pressure to a point of consumption, as a. steam turbine.

The object of the invention is to provide an improved. structure which does away with all large heavy .moving parts anal which provides automatic valve mechanisms for the prevention of over-charging or excessive discharginc.

For a consideration of what l believe to henovel and my invention, attention is Clirected tothe following description and the claims appended thereto. y

In the accompanying drawing, Figure l is a, vertical sectional View el un embed# nient of my invention; and Fig. 2 is a vertical sectional view oi' the valve mechanisms.

Referring to the drawing 5 indicates a Waterftanic which may be oi concrete or other suitable material and for convenience may he inserted in an excavation in the ground as illustrated. Within this tank is an invertecl tank 6 of steel, reinforced con crete,`or other suitable material rigirlly se cured in anyl convenient manner ,as for ere ample hy .means ott -the'staiulars er col 'umns 7; Tlhis tank is open at its lower enti so that. waiter can pesstreely from the inner to the outer tank and vice versa.

An intermittent supply of steam enters through a conduit 8 ancl valve casing 9 and passes hy way of conduit l0 to the inner tank 6 at some point in the ton 'about the center. The tank (i thus forms a steam receiving tank which is water sealed. A s steam iiows into the inner tank, the Water is expelled by way of the open space at the bottom ci its sides, thus an expansihle rescr voir is tlevised, having no large 'nioving partsfthemovement taking "place 'the sur rouncling Watermedium. muletorwdischarges its steam., Vthe Water Aflows haclr from the ennular space in .the

inner tank, thus vfilling r w `rater in place of steam, in order to obv e excessive condensation or" steam into the :rater thereby raising;` its temperature to an unnecessary degree the' surface of water may be covered With a outer tank to the the inner tank iv' l layer of' oil or other light non volatile liquid.. y,

:in orriger to prevent the accumulator from being overcherged on the one hand, and to prevent water from being drawn up into the steam; supply eine on the other hancl, a special of valve mechanism is added as a subsidiary device. lWorking; in conjunction with this valve mechanism is a float l2 sliding on evertical stem or spindle i3. This valve mechanism comprises double heat valve 14: having valve Aseats l5 and it is arranged to move downivarclly in opening so as to permit it to open by gravity when there is a vacuum on the conduit 15?', leading to the turbine or other consumption device. The valve is connectccl te a vertical tubular sleeve 16 which surrounds the spinello 13 and passes through a guide and stop member 16 which ci erigir' Pri l i @het as ELECTREC member acts to limit the opening movement of the valve. Connected to 'the lower end of the sleeve 1G is a tuhe lbthe en; of which is adapted to 'ne engaged by the iioat l2. The stein or spindle 1.3 is prolonged above the valve and connects with a seccncl valve ll" thronel'i c slotted link 1S and hellcrank levers i9. v

il@ inflicctes an annular seat i'or valve if?, which v :is in the nature of a relief valve. The leiverenrl or" the-'vertical-spinalle is guiclccl in a toot-step bearing 21 anni has a cellar 22 adapted to he engaged oy the float i2. The valve l? is weighted by .means of a number of disks 23 so' that its" against the possibility of its'rising intor the` niain supply pipe., the float catches against the lower end oi tube 1S unich is s'ecurerl` to the tubular velve stern 'it and. closes the' Avalve le so that lio-:further steam .cannes cavi-e9 ani consequently tlie'rise of the Water W is ot/course when the' accu mal. tor fully ischarged 'When charge ing takes place and the Water descends so low in the inner vessel that there is danger of the oil on its surface being driven out at the annular space at the bottom of its sides, the float then catches against the stop 22 and the slotted link 18 comes against the ends of the bell-crank levers i9 causing the other ends of these levers to open the relief valve 17. The incoming steam is then re lieved to atmosphere and the further descent of the water in the accumulator is arrested. This oi' course is when the accumulator is fully charged.

While the specific means shown for supporting the inner tank is now considered by me as being preferable, it will be understood that my invention is not limited to this arrangement, vand that any other suitable means may be lfused. K

The volume of the outer tank may be about twice the volume of the inner tank so that vvlien the inner tank is empty, the annular space in the Water tank is full to the top. This Would occur if the top of the inner tank is on a level with the top of the outer tank. The pressure variation in this case would be from a point below atmosphere to a pointabove atmosphere, about equal either Way. If it is desired that the pressure be constantly above atmosphere in the inner vessel, it would be necessary to fiX the inner'vessel in such a position in the tank that the top of it is considerably below the top of the outer tank, andthe inner tank would always be submerged even when fully discharged and full of Water. rihe Whole of the surface ci' the inner tank should be insulated With some heat non-conducting material which is at the same time Water resisting.

The above described arrangement, it `Will be seen, provides a structure in which there are no heavy moving parts and which therefore necessitates no strong guides or Wearing parts; at the same time however it provides an efficient automatic mechanism for the prevention ofY overcharging or excessive discharging.

In accordance with the provisions' of the patent statutes, I have described the principle of operation of my invention., together with the apparatus which l new consider to represent the best embodiment thereof; but I desire to have it understood that the ap- ,paratus shown is only illustrative, and that the invention can be carried out by other means, such as 1come Within the scope of the appended claims.

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

niv/acca cally preventing over-charging and excessive discharging.

2. A steam accumulator comprising a stationary Water tank, a fixed inverted steam receiving tank therein, an inlet conduit and an exit conduit for conveying steam to and from the receiving tank, a valve in the exit conduit, and meansfor closing said valve when the steam has been discharged to a predetermined extent.

3. A steam accumulator comprising a stationary Water tank, a iXed inverted steam receiving tank therein, an inlet conduit and an exit conduit for conveying steam to and from the receiving tank, a relief valve, and means for automatically opening said valve to prevent overcharging of the accumulator.

il. A steam accumulator comprising a stationary Water tank, a iXed inverted steam receiving tank therein, an inlet conduit and an exit conduit for conveying steam to and from the receiving tank, a valve in the exit conduit, a stem connected to it, and a `float which engages the stem to close the valve when the Water reaches a predetermined high level in the steam chamber.

5. A steam accumulator comprising a stationary water tank, a fixed inverted steam receiving tank therein, an inlet conduit and an exit conduit for conveying steam to and from the receiving tank, a relief valve, a. spindle connected to it, and a iioat which engage-s the spindle to open the relief valve when the water reaches a predetermined lovv level in the steam chamber.

6; The combination With a steam accumulator comprising a stationary Water tank and a fixed inverted steam lreceiving tank therein, the lower'edge of which is sealed by the Water, said steam receiving tank having an admission conduit and an exit conduit, of a normally open valve in the exit conduit, a normally closed relief valve in the steam receiving tank` and means controlled by the level of the Water in the steam receivingtank ior closing the first named valve when such Water reaches a predetermined high level and for opening the relief valve When it reaches a predetermined lov; level.

7. steam accumulator comprising a stationary Water tank, a iiXed inverted steam receiving tank therein, an inlet conduit and an exit conduit for conveying steam to and from the receiving tank, a relief valve in the steam receiving tank having a stem, a valve in the exit conduit having a stem, and means controlled by the level of the water in the steam. receiving tankwhich engages said stems to open the relief valve and to close the valve in the exit conduit.

8. A, steam accumulator comprising a stationary water tank, a iiXed inverted steam receiving tank therein, an inlet conduit and an exit conduit for conveying steam to and from the receiving tank, a relief valve in biased to open position in the exit conduit, 15 the steam receiving tank having a stem, a and a float controlled kby the level oi thevalve in the exit conduit having a tubular water in the steam receiving tank for openl stem which surrounds `the other stem and ing the relier1 valve when the steam receivterminates shortof the end thereof, a collar ing tank becomes overcharged, and for closon the irst named stern and an float ,which is ing the exit valve when the steam'receiving 2o guided by such stem and is located between tank becomes over-discharged. the collar and the end of the tubular stem. In Witness whereof, have hereunto set 9. A steam accumulator comprising a my hand this 14th day of October 1915 receiving tank therein, an inlet conduit and stationary water tank,a Xed inverted steam CHARLES HENRY NAYLOR .n

an exit conduit Jfor conveying steam'to and Witnesses: from the receiving tank, a relief valve CHARLES. H. FULLER,

biased to closed position in such tank, a valve J. A. Fos'rnn.

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