US2353195A

US2353195A - Mixing fluids of different temperatures and densities

Info

Publication number: US2353195A
Application number: US350250A
Authority: US
Inventors: Sims Alfred William
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-08-03
Filing date: 1940-08-03
Publication date: 1944-07-11
Anticipated expiration: 1961-07-11

Description

July 11, 1944. A. v. SIMS MIXING FLUIDS OF DIFFERENT TEMPERATURES AND DENSITIES Filed Aug. 5, 1940 ATTORNEY.

Patented July 1l, 1944 MIXING FLIDS. .oF DIFFERENT TEMPERA- .TUREs AND DENsrrlEs Alfred V. Sims, 'New York, N. Y.; Alfred` William Sims, executor .'of said Alfred V. Sims,

Application August 3, 1940, seria1No.'35o,25o

(c1. zei- 77) 1I) Claims.

This invention relates to the mixing of a iluid of high temperature and 10W density, suchas steam, with a, fluid of low temperature and high density, such as water.

The main object of the inventionis to accom- .plish mixtures as referred to without noise such as is usually or frequently incidental thereto. This is accomplished according to the .present .invention by causing a current of the uid of high .temperature and low density, such as steam, be-

low the surface of the .other uid, such as Water,l

Aand drawing or inducing the flow of the water .into the steam gradually i. e. in such increments :Sas to gradually condense the high temperature, .low density fluid (steam), so that no noise is.m caused. The heat of the higher temperature fluid '.(steam) is thus imparted to the low temperature yfluid (Water) It is a further object of Vtheinvention, while accomplishing the ends as indicated, to effect an- .eiciency by .passing .the high temperature iiuid,

Asuch as steam, below the surface of the low temperature uid, such as Water, in a stream .or current through a heat conducting conduit .in .one .direction and reversing the direction of ,flow of -csaid stream -so that it `passes inthe opposite direction, in contact with the outside'of said con- '.duit', and induces a ow of the low vtemperature uid into such stream. y

An important use of the invention is to .utilize fsteam, usually Waste steam, to heat the condensate from main and auxiliary engines, in the hot well .or lter box before the condensate is vforced into the boiler, or into another heater en route .to the boiler. The invention is however. appli.

.cable to many other uses. .v

v.Other and ancillary objects of the invention will appear hereinafter.

In the accompanying drawing which illustrates the-invention:

Fig. -1 is a side elevation, with the hot Well in section, of a hot well and heater embodying the invention;

Fig. 2 is an axial section, .on an enlarged scale of the heater;

Fig. 3 is a bottom plan View of one'of the bells I or petticoats of the heater of Fig. 2;

Fig. 4 isV abottom yplan View of the-heater of Fig. 5;

Fig. 5 is an axial section of a modified form of :heater embodying the invention; and

Fig. 6 is a top plan view of one of the bells or .petticoats of the vheater of Fig. .5.

.Referring to the drawing and rst to Figs. 1 .;to.B inclusive, the hot well A (see Fig. 1) con-- tains the waterB tobeheated and into'the'water Ais immersed the device C by means of vWhich'the steam and water .are noiselessly mixed to heat the latter, such device being supplied with steam through thepipe D.

The device C comprises'the'bas'e or pot'portion I within which enters the/ldwerwend Vof the thin, metal, heat-conducting conduit `2. The conduit 2 is spaced from the bottom wall 3 ofthepot and also from the side wall 4 of the pot. The .top

baile or cap Apiece comprisesa curved upper top 5 with a central, tubular h ub 6 and a screwthreaded nipple 'I by `Whichjthe end of the steam supply pipe is securedto the device. The 'nipple l has a central hubportion 8 supported from 'the circumferential Wall vof the nipple by suitable arms or ribs having apertures 4between them for the passage of the steam.

Telescopedwithin the hub 6 is .the upper end of the conduit 2 and radial ribs or anges 9 secured to the top 5 of the cap ypiece' and to the -hub 6 serve to strengthen .the structure and also form a bearing for the flaring petticoat I0, the upper circumferential edge I I of whicntsfinto notches I2 in the lower edges Aof ,the ilatribs S spaced about lthe circumference .ofthe cap piece. From the inner side of thepetticoat I0 .extend the Aflat ribs yI3 spaced about the vcirciiinfeience of the petticoatfso as to,l provide a'pertli'ims `there-- between fOr the passage of lid, and Jthe inner ends of such ribs bear against `th'eco'ndu'it 2'so as to firmly 'space and "support tliepetticoat. ,In the bottoms .f the ribs VI3 e'notches I4 Withinwhich enters the upper circumferential edge of 'the Haring pttleat I5 yv'v'lrflit'h has theilfiw'aliily projecting circumferentiallyspaced Vflat ribs I6, similar "to the ribs I4, bearing against 'the conduit l2.

In the lower`e'dgesofthe'rib IE are'the notches I 1 within which Aer'it'er thejupper edge of lthe circumferential Wall of the 'flared pettico'at I8 Ahaving the inwardly 'extending circumferentially spaced hat ribs I9,'-'similarto1the-ribs il 4, Abearing against the conduit L2.

vIn the lower edgesv of Athe vribs -1 |59 --are thenotches 20 Within `which Y entier the Vupper circumferential edge of -the'aring -pettico'at 21 .which hasY the inwardlyxextending.circumferentially-*spaced flat ribs 22, similar to ther'ibs I4, and bearing against .the conduit 2. AInthe lower ,-edgesofptheat. ribs 22 are notchesv 23uwithin 'which-.fitthe .upper edge of the side wall 4 .of the-pot .or .base I. lAlsothe side Wall 4 vhas the circumferentiallysspaced.p1-o

Vjections 24 bearing againstthe conduit 2. Also the side and bottom 'Walls' `of the baseportion I may have the circumferentially-spaced ribs 25 which bear against the outside of the conduit 2 and also extend beneath the end of that conduit. There sthus assuredly provided within the pot or base I spaces or apertures through which steam issuing from the lower end of the conduit 2 may pass into the pot and upwardly between the lateral sides of the pot and the conduit.

It will be seen that the petticoat I5 extends within the petticoat I0, the petticoat I8 extends within the petticoat I5 and that the petticoat 2t extends within the petticoat I8, and that there is formed between the petticoat I9 and the petticoat I5 an annular orice 26 whereby the water may be induced into the steam stream. Similarly there isan annular orifice 2'| between the petticoats I5 and |8 and a similar orifice 28 between the petticoats I8 and 2|. Between the petticoat 2| and the flange 29 extending from the side walls of the pot I is an orifice 30 through which the water may enter the conduit. The -top cap 5 and the base portion I are held together with the petticoats I0, I 5, I8 andv 2| clamped between them, as shown particularly in Fig. 2, by a bolt 3| extending centrally through the conduit 2, through the hub 8 of the cap piece 5 and the bottom wall 3 of the base potportion such bolt having a nut 32 on its end beneath the wall 3' of the base portion and the nut 33 screwed upon it outside of the hub 8, there being introduced between the nut 33 and the hub 8 aspring washer 34 or other suitable resilient device whereby the parts are resiliently secured together and are firmly pressed together at all times; so that-the parts'may not become loose or develop any vibrations which would tend to produce noise or other deleterious effects. Screwed upon the bolt 3| outside the nut 33 is a jam nut 35. f

It will be observedthat by the construction shown the parts of the apparatusare firmly held together with a substantially continuous pressure irrespective of vibration and that no pressure comes on the thin conduit 2, the clamping pressure between the cap piece 5 and the pot I being borne by the engaging petticoats and ribs'between the top and base pieces as described.

It will be observed that the

orifices

26, 21, 28 and 30 progressively decrease in width in the order mentioned or conversely increase in diameter inversely to the order mentioned. Also there 'are annular orifices between the upper ends of the petticoats I0, I5, I8 and 2| respectively and the thin, central metal conduit 2, also an annular orifice between the upper end of the pot wall 4 and the conduit 2, these orifices progressively increasing in width from that between the wall 4 and the conduit 2 to that between the upper edge of the petticoat I0 and the conduit 2.

In its operation, the device as shown in Fig. 2 is immersed in the liquid'to be heated by vsteam as shown in Fig. 1. The steam passes in through the nipple 'I into the thin, metal conduit'2, the steam then passing through the conduit to the bottom thereof passed outwardly between the side wall of the pot andthe lower end of the tube, and along the outer side of the conduit 2 and through the annular orifice between the upper edge of the pot side wall and the conduit. As the steam passes from this orifice it -acts to force the water and steam through the somewhat larger orifice between the upper edge of the petticoat 2| and the conduit, and at the same time induces water to iiow from the outside of the interior of the petticoat through the-orifice 30. The action of the steam being continuous, it will cause a steady flow through the orifice 30.

Likewise the passage of the hotter water mixed with the steam issuing from the orifice between the upper edge of the petticoat 2| and the conduit 2 Will force the mixed water and steam through the orifice between the upper edge of the petticoat I8 and the conduit, which is somewhat larger than the orifice at the upper edge of the petticoat 2 I, and will induce an inflow of water at the orifice 28, such orifice being somewhat larger than the orifice 29. The mixture of steam and water will, in like manner, flow from the annular orifices, progressively increasing in size, between the upper edges of the petticoats I8, I5 and I0, the inflow of water being respectively induced at the

annular orifices

2 and 26 which progressively increase in width. The mixed steam and Water finally passes through the orifice between the upper edge of the petticoat II) and the conduit 2 against the curved top 5 of the cap piece, which is of greater radial extent than the petticoats, and is deflected outwardly and downwardly at an oblique angle to the device by such top through an annular orifice between the edge of the top piece and the tcp of the petticoat I0 into the body of Water in which the device is immersed, the steam being condensed before it reaches the cap cover 5.

The noise and commotion of steam projected into colder water is caused by the impact of the walls of the bubbles which are formed. By the passage of the high temperature steam, however, through the conduit 2, a lm of steam is formed upon the outside of that conduit which prevents the walls of any bubbles formed from impacting by forming a cushion for the approximately hemispherical globules of steam which give up their heat through the surfaces in contact with the water.

It will be seen that the greater the steam pressure in the central conduit the greater will be the amount of water that will be inducted into the device through the water intake orifices as referred to. The present device therefore, instead of following the noisy methods of heating water by steam, by forcing steam into the water to effect heating through the steam condensation, operates by inducing the water to enter the steam and thus does away with any noise of operation.

Referring now to Figs. 4 to 6 inclusive, there is therein shown a device similar to that of Figs. 2 and 3, the main difference being that the device of Figs. 4 to 6 is adapted to be attached on the end of a pipe that is to supply the steam t0 be condensed, and the direction of the flow of the steam and the ingoing condensing water are not reversed as in the case of the device of Fig. 2. The device of Figs. 4 to 6 therefore may comes from its decreased size in diameter which permits it to be installed in many places that would not accommodate the device of Fig. 2.

The device of Figs. 4 to 6 comprises a'steam supply pipe 36 secured to an end .member 31 comprising the outer cylindrical part having a central hub 38 supported from the cylinder by means of spokes 39 with apertures between them through which the fluid may pass. Attheend of the cylindrical portion is an annular ridgeY 40 fitting into notches 4| in flat -ribs 42 extending inwardly from the inner walls of the flared petticoat 43 which has an inwardly extending .flange M with a central aperture 45. Alsothere is an annular orifice 46 between the member 31 and the wide end of the petticoat 43. The petticoat 43 has an annular ridge 41 fitting into notches 48 in the ribs or webs 49 which extend inwardly from the flared petticoat 50 and are spaced circumferentially. Also the petticoat 50 has an inwardly extending flange l with a central aperture 52 and a circular ridge 53 fitting into notches 54 in the circumferentially spaced webs 55 extending inwardly from the flared petticoat 55 having an inwardly extending flange 51 with a central aperture 58. The petticoat 53 also has a circular ridge 59 fitting into notches 60 in circumferentially spaced webs 6l extending inwardly from the ilared petticoat 82 having the inwardly extending flange 63 with a central aperture 64. The petticoat 62 also has a circular ridge 65 fitting in notches 66 in circumferentially spaced ribs 51 extending inwardly from the flared petticoat 88 having an inwardly extending flange 69 with a central aperture 18. Also the petticoat 88 has a circular ridge 1l tting into notches 12 in the circumferentially spaced ribs 13 extending between the outer rim 14 of the end member of the device, and a central hub 15. The parts are clamped together by a bolt 16 passing through the hub 38 and having a nut 11 screwed upon it outside of the hub, and also passing through a hub 15 and having a nut 18 screwed upon it outside the hub 15, a spring washer 19 being interposed between the nut 18 and the hub 15 to resiliently hold the parts together for the reasons as explained in connection with the structure of Fig. 2. A jam nut 80 is provided outside the nut 18.

It will be seen that there are

annular orifices

8l, 82, 83 and 84 between the petticoats and the end member, such orifices increasing in width progressively in the order named, and that there is a larger annular orifice 85 between the petticoats 88 and its adjacent end member.

It will also be observed that the orifices in the ilanges 44, 5l, 51, 83, 'lil and 1t and in the end member progressively increase in size in the order mentioned.

The steam admitted through the member 31 induces inflow of water through the orifice 46. This mixture of steam and water then passes through the central opening 45 which in turn induces inilow of water through the orifice 8l. This action continues as the steam and water ilows through the central apertures and induces inflow of water at the periphery of the llanged petticoats until condensation has been conipleted. The condensed water and condensate will then commence to ilow out of the orices at the circumference of succeeding petticoats instead of the water entering at such points.

While the invention has been illustrated in what are considered its best applications it may have other embodiments without departing from itsv spirit and is not therefore limited to the structures shown in the drawing.

What I claim is:

l. A device for mixing fluids, adapted for immersion in a fluid bath, comprising in combination a plurality of flared petticoats each having a central opening and means for clamping said petticoats together including a central rod passing through said central openings, said openings forming a central passage for a stream of one fluid to be mixed and means for supplying said stream of fluid to said passage, said petticoats flaring outwardly in the direction opposite the flow of said stream and said petticoats having openings between them through which the immersing fluid may enter said stream.

2. A device for mixing fluids, adapted for immersion in a iluid bath, comprising in combination a plurality of flared petticoats each having a central opening and means for clamping said petticoats together including a central rod passing through said central openings, said openings forming a central passage for a stream of one fluid to be mixed and means for supplying said stream of iluid to said passage, said petticoats ilaring outwardly in the direction opposite the flow of said stream and said petticoats having openings between them through which the immersion iluid may enter said stream, the said openings between said petticoats being of diierent conductive capacities which progressively increase in the direction of said stream.

3. A device for mixing uids, adapted for immersion in a fluid bath, comprising in combination a plurality of flared petticoats each having a central opening and means for clamping said petticoats together, said openings forming a central passage for a stream of one fluid to be mixed and means for supplying said stream of iiuid to said passage, said petticoats flaring outwardly in the direction opposite the ilow of said stream and said petticoats having openings between them through which the immersing fluid may enter said stream, said petticoats having internal ribs, the end of each petticoat bearing against a rib of an adjacent petticoat.

4. A device for mixing iluids, adapted for immersion in a fluid bath, comprising in combination a plurality of flared petticoats each having a central opening and means for clamping said petticoats together including a central rod passing through said central openings, said openings forming a central passage for a stream of one fluid to be mixed and means for supplying said stream of iluid to said passage, said petticoats aring outwardly in the direction opposite the flow of said stream and said petticoats having openings between them through which the immersing fluid may enter said stream, said petticoats having internal ribs, an end of each petticoat bearing against a rib of an adjacent petticoat.

5. A device for mixing fluids, adapted for immersion in a, iluid bath, comprising in combination a plurality of ilared petticoats each having a central opening and means for clamping said petticoats together including a central rod passing through said central openings, said openings forming a central passage for a stream of one uid to be mixed and means for supplying said stream of fluid to said passage, said petticoats flaring outwardly in the direction opposite the flow of said stream and said petticoats having openings between them through which the immersing iluid may enter said stream, and a spring about said rod and resiliently pressing said petticoats together.

6. A device for mixing fluids, adapted for immersion in a lluid bath, comprising in combination a central pipe, means for introducing a stream of fluid into one end of said pipe, means at the other end of said pipe for receiving fluid from said pipe and turning it backwardly into a passage formed between the outside of said pipe and a plurality of petticoats, a plurality of petticoats surrounding said pipe and separated therefrom to form said passage therebetween, said petticoats having openings between them through which the immersing fluid may enter said passage and means securingsaid petticoats together.

7. A device for mixing fluids, adapted for immersion in a fluid bath, comprising in combination a central pipe, means for introducing a stream of fluid into one end of said pipe, means at the other end of said pipe for receiving uid from said pipe and turning it backwardlyinto a. passage formed between the Outside of said pipe and a plurality of petticoats, a plurality of petticoats surrounding said pipe and separated therefrom to form said passage therebetween, said petticoats having openings between them through which the immersing fluid may enter said passage and an outwardly flared baffle member of greater radial extent than said petticoats receiving iiuid from said passage and discharging it into an immersion bath at an oblique angle to vthe device.

8. A device for mixing fluids, adapted for immersion in a fluid bath, comprising in combination a central pipe, means for introducing a ,stream of fluid into one end of said pipe, means at the other end of said pipe for receiving uid from said pipe and turning it backwardly into a passage formed between the outside of said pipe and a plurality of petticoats, a plurality of petticoats surrounding said pipe and separated therefrom to form said passage therebetween, said petticoats having openings between them through which the immersing lluid may enter said passage and means comprising a central rod passing through said pipe for securing said petticoats together.

9. A device for mixing fluids, adapted for immersion in a fluid bath, comprising in combination a central pipe, means for introducing a stream of fluid into one end of said pipe, means at the other end of said pipe for receiving iiuid from said pipe and turning it backwardly into a passage formed between the outside of said pipe and a plurality of petticoats, a plurality of petticoats surrounding said pipe and separated therefrom to form said passage therebetween, said petticoats having openings between them through which the immersing uid may enter said passage and means securing said petticoats together, said petticoats having internal ribs, the end of one petticoat bearing against the rib of an adjacent petticoat.

, 10. A device for mixing iluids, adapted for immersion in a, fluid bath, comprising in combination a central pipe, means for introducing fluid into one end of said pipe, a base member at the other end of said pipe for receiving fluid from said pipe and turning it backwardly into a passage formed between the outside of said pipe and a plurality of petticoats, a plurality of petticoats surrounding said pipe and separated therefrom to form said passage therebetween, said petticoats having openings between them through which the immersing fluid may enter said passage, an outwardly ared baille secured to said pipe at the other end of said petticoats from said base member and receiving fluid from said passage and discharging it into the immersing bath and a central rod engaging said baffle and said base member and clamping said petticoats between said baie and base member.

ALFRED V. SIMS.