US971394A - Feeding device for evaporators. - Google Patents

Description

A. s. MOEITS. FEBDING DEVICE FOR, BVAPOR'ATORS; APPLiIoATIoN FILED JUNE 1s. 1909.r

f Patented sept. 2'?, 1910;

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.ANTHONYA sAUNDERs Monnrs, or HAvEREORnPENNsYLvANIA, AssIGNonTo NEST- NEn EvAroNAroR eoMPANsn or ,fPHILADELPHIlnf PENNSYLVANIA, A consona- TlKON-OF PENNSYLVANIA.

:FEEDING nnvrcn ron EvAnoRArons.'

To all' 'wlwm 't may concern Be it known'that I, ANTHONY SAUNDERS Monxus, aleitizen of the United States,"resid in inv Haverford, Delaware county, Pennsy Vania, have invented certain .Improvementsln Feeding Devices for Evaporators,

of which the following is a specification.

My'invention relates to evaporating apparatus, and consists of means or feeding the tubes of that class of evaporators in which concentration is effected by movement of the liquid in an upward direction in a series of suitable externally heated tubes.

My invention is fully shown in the accompanying drawings, in which: i

Figure 1, is 4a sectional elevation of the 'feeding device embodying my invention, and Fig. 2, is ahsectional plan view of the same, taken on the line a'-a, Fig. 1.

In the evaporation ofllquids in the class of evaporators referred to whena super heated liquid is fed to the bottom of one set of tubes, 1t, under oes a. fall in temperature, with a c'onsequentarge production of vapor. Unless means are provided for ,taking care of such vapor, there is danger `of the liquid feeding unevenly to-the tubes; and the object of my invention is'to provide means that will insure to the greatest extent possible, a uniform feed of such liquid to each tube; a further object being to provide a construction that will permit readyexamination of.

the tubes and tube sheet for cleaning, repairs and other purposes.

In Fig. 1, 1 ,represents the shell or casing of an evaporator, and 2 a suitable annular member, which may be a casting, at the bottom of the same, to which such shell is secured. A plate 3, secured to the underside of said member 2 formsthe bottom of the steam chamber'and such plate is apcrtured for the reception of tubes 4, which pass through said plate; their lower ends cxtendingbelow the plate.

The member 2 is provided with a chamber 5 extending substantially the entire distance around the same, with an inlet 6, which, in

the present instance, is provided with a central division plate 7, whereby the entering liquid is divided and sent to opposite partsof said chamber simultaneously. The

member 2 is also provided with an outlet 8,

l for the passage of condensation from the -heating medium deliveredA to the shelll.

`of all t i Specification ot Letters Patent. Patented Sept. 27, 1910. .pplic'atin med :une is, 1909. serial No.i 502,945.

ber 10, which may also be a casting, having an enlarged central opening 11, and an internal annular wall 12 surroundingr said opening and forming a channel with which the chamben communicates and into which liquid passes from the inlet 6. The member 10 is secured to the casting 2 in any suitable manner, preferably by means of studV bolts 13. The opening l1 referred to is-lare` enough to permit examination e tubes-, and to effect removal Under or cleaning of any of the same.

working conditionssuch opening is closed by means of a bottom vplate 14, Awhich may or may -not be provided with a.drain' ing outlet. The lower ends ofthe tubes are notched at 15,- in the manner Shown and described in Patent N o. 882,322, datedMarch 17, 1908 such notches being for the same purpose as disclosed in said patent.

To insure the passage of the liquid in oposite directions around the annular chamer 5, the inlet openinfr is provided with a floor or horizontal wal l16, extending part way into said chamber on both sides of the division plate 7 The liquid passing to the channel formed by the annular wall 12,

overflows the same into the central part ofthe feed chamber. .Thel lower ends of the tubes extend into this por-lion of the cham- Aber and the entering liquid passing to saidtubes rises therein under the influence of the heating medium 'surroundingr the same. The feed chamber may be provided with a' discharge outlet or' drain 2"l controlled by a suitable valve, as 21.

In the shell' or easing surrounding the 'tubes to which the heating medium is directed, a certain amount of air or other noncondensable vapor may be mixed with the VSteam. To get rid of this vaporous body, l

may arrange to discharge it into the liquid inlets. For this purpose, I may provide. a pipe 23, the upper end of which communi- (fates with the shell or easing l. (the con- `'nectimitherewith not being shown). but being preferably located near the rep of the same.

I claim:

.1. In a vertical' lube evaporator, the combination of ashell or casing, an annularl member secmfed to the betteln of the same, said member having an inlet and. forming a chamber for the reception 0f the liquid under treatment, a, plate carried by said4 member, tubesearried by said plate and rojecting below the same into said cham er, an annular wall secured to saidmember lar erin diameter than the area occupied by sai tubes, and a bottom plate for said wall, the latter with said Wall orming a Well into which the tubes dip.

2.v In a vertical tube evaporator, the com-4 ate carried by said member,

below the same, an open ring having an inner annular flange forming a channel secured to said member, said fiange lying outside the 'area covered by the tubes, and a bottom plate for said ring, said flange and glate forminol awell into which the tubes ip, and sai annular member having an outlet from the steam space surrounding the heating tubes.

In-testimony whereof, I have signed my name to this specification, in the presence ofgtwo subscribing Witnesses.

ANTHONY SAUNDERS MORRIS Wltnesses: Y

J. B. ALLEN, CHAs. H. FULMER.

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