US1582899A - Apparatus for treating oils - Google Patents

Description

May 4 .1926.

P. CASSIDY APPARATUS FOR TREATING OILS 2 Sheets-Sheet 1 p INVENTOR.

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ATTORNEYS Filed Nov. 21-. 1922 P. CASSIDY APPARATUS FOR TREATING OILS May 4, 192's. 1,582,899

Filed Nov. 2.1, 1922 2 Sheets-Sheet 2 v 30 z/ z? 3/ .7 j; y i

=5 v 1] l Z 27 25 4 IN V EN TOR.

ATTORNEYS.

Patented May 4, 1926.

.Riverside, in the county of Fairlield and I State of Connecticut.

UNITED I STA TES CONNECTICUT, ASSIGNOR TO THE BABCOCK & WILCOZ ER SEY, A. CORPORATION OF NEW JERSEY.

PATENT OFFICE.

APPARATUS FOR TREATING OILS.

Application fiIed November 21, 1922. Serial No. 602,461.

Tofall whom it may concern:

Be it known that I, PERRY "GAssIDY, a

citizen of the Uni ted States, residing at have invented certain new and useful Improvements in Apparatus for Treating Oils, of which the following is a specification. I

My invention rel vegetable oils whereates to the treatment of in the oil is subjected to the action of a gaseous medium, and it is an object of my invention to provlde an apparatus in which th e oil may be treated efficiently and effectively.

My invention will be best understood from the following description and the annexed drawings of one f0 rm of apparatus which I have chosen for purposes of illustration,

in which Figure 1 is a vertical section of the illustrative form of the apparatus; Fig. 2

is an enlarged view, heads and 1s taken on Frg. 3* 1s a sectional ployed in my illust a bottom plan view 0 in plan, of the tube line 2-2 of Figure 1; view of a nozzle emrative device; Fig. 1 is f Fig. 3 and Fig. 5

represents an arrangement of apparatus according to oneembodiment of the invention for treating the oil with steam.

Referring to Fig. vided intermediate 1, a container 1 is proits ends with a set of tubes 3 extending through tube-sheets 4: and

the-latter being secured to the tank 1,

as shown. Preferably secured to the same tube-sheets is a sec ond set of tubes 2, the

purpose of which will appear hereinafter.

Associated with nozzle 5, preferably of the tube, as shown, each each tube 3 of the set is a located adjacent one end nozzle preferably being PIOVldGd-Wll'li a conlcal element 6 of Venturi shape to increase the injector action.

The nozzles 5 may be secured to one or more common chambers 7. and these, in turn, to

the conduit 8, whereby steam or any de-- sired gas may be admitted through the lat ter and into the nozzles. tube set 3 is provided a assist in the circulation of the oil, and this be advantageously. provided with to assist in the stirring and mixbaflie'may screens 11 ing of the oil with troduced at 8 or 9.

Surrounding the conical baffle 10 to the gaseous medium in- The baflie 10 is preferably secured to the tank by means of the brace 12, as shown.

Near the top of the tank the gaseous medium leaving the containerat the outlet 17 at the top. The baffle 13 also acts to prevent oil being blown out of the steam outlet 17 when the apparatus is in use. The container is also conveniently provided with a level gauge 16 and manhole 18.

.Means are provided to heat the oil passing through the tube sets .3 and 2, comprising an inlet 20 for the heating medium, preferably high-pressure steam, and the exit 21.

In the arrangement shown in Fig. 5, a boiler, preferably of the ordinary high-pressure type, is used to supply high pressure steam for heating the oil through pipe 20 and also to supply the medium, supplied through the nozzles 5, for treating the oil, this steam being preferably at a lower pressure than the heating steam. 'In this arrangement, steam under boiler pressure from boiler 31.passes through conduits and 20, around the tube sets 3 and 2, out at 21, and into the receiver 31, whence it is returned by means of pump 37 to the boiler, the return connection thereto 1 not being shown. In conduit 35 is inserted a reducing valve 32, whereby steam under reduced pressure is admitted to the chamber 7 by valve 10., f-If desired, steam from other sources, as, for example, exhaust steam from the pumps, may be admitted by means of valve 41 into the chambers 7 The steam, or other gaseous medium, admitted through the nozzles is withdrawn from the container at the top through the outlet 17 and pipe 22 and thence passes to condenser 23, which, conveniently, may be of the barometric type, as shown. If desired, a feed-water heater may be inserted in the conduit 22, as shown.

Oil is admitted to the system through conduit 25, passing through valve 27, pump 26, and valve 30, through pipe 14; into the top of the container. valves 28 and 29 remainin closed. Oil may be circulated exteriorly o the container by means of pipe 15, valve 28, pump 26,, valve 30, and pipe/14, valves 27 and 29 being closed. When it is desired to drain the container of the oil, valves 28 and 29 are open and valves 27 and 30 closed. i

In use, oil is placed in the container 1, and, if desired, may be first brought to a suitable temperature by admitting steam to the exterior of the tube sets 2 and 3 and circulating the oil through the container and pipe 14 by means of pump 26. Vhen the desired temperature has been reached in this manner, the gaseous medium, for example, hydrogen, or, in the embodiment illustrated, steam is introduced through either or both of the pipes 8 and 9. The gaseous medium issues from the nozzles 5 with increased velocity and causes the oil to be injected through the tubes 3. Here the oil and gaseous medium are thoroughly mingled and are subjected to considerable scrubbing action by virtue of the extended tube surface aitorded. The mixture leaves the tubes at considerable velocity and partially owing to the fact that the mixture of oil and gas or steam is considerably lighter than the rest of the oil, ascends the space enclosed by the baflie 10,

passing through the screens 11, where it is i more intimately mixed. At the same time, the oil on the outside of the baflle 1O descends through tubes 2, thus maintaining the cir eulation.

In the arrangement described, it will be noted that the oil is heated in the same container in which it is treated with steam or gas. This simplifies the apparatus. By using, high pressure steam for heating the oil, care is not required to prevent heating the oil above the temperature which would injure the oil, since the steam pressure (and consequently its temperature) may be setbelow the danger point. Moreover, heat may be supplied to the oil while under treatment. By using high. pressure steam for heating the oil, high efficiency may be obtained, because the temperature of such steam remains constant while it is giving up its heat to the oil, and, therefore, the heat transfer rate is constant. This would not be true if superheated steam were used.

By using the oil-treating steam or gas to produce circulation of the oil in the container, all circulating pumps or the like'may be dispensed with. In the arrangement described, the energy in this oil-treating steam or gas is utilized to produce a positive circulation of the oil.

The circular baflle 10 separates the rising column of oil mixed with steamer gas from the descending column of oil alone, so that the circulation of the oil :is thereby assured and the screens'in this-rising column add materially to the scrubbing action of the steam or gas on the oil.

By providing the injector nozzles at the lower ends of relatively long tubes, in the manner described, the oil attains a high velocity through these tubes and a correspondingly rapid circulation of the oil in the container and this, together with the scouring action obtained in these tubes and by meansof the screens, greatly reduces the tifmelrequired for the treatment of a batch o 01 i i It'will be understood that the arrangement described is merely illustrative and that the embodiment of the invention may be Varied within wide limit-s.

I claim: 1. An apparatus for treating oils comprising a containerya plurality of substantially 'upright tubes within the container and having their open ends spaced from the top and bottom thereof, nozzles placed near the ends of some of said tubes so as to in duce a flow of the oil through the tubes when steam or a gas is injected through the nozzles, means forsupplying steam or a gas to said nozzles, an upright conduit superposed around the ends of the tubes remote from the nozzles, said conduit being spaced from the walls of the. container.

2. An apparatus for treating oils comprising a container, a plurality of substantially upright tubes within the container and spaced from the top and bottom thereof, nozzles placed near the ends of said tubes so as to induce a flow of the oil through the tubes when steam or a gas is injected through the nozzles. means for supplying steam or a gas to said nozzles, an upright conduit superposed around the ends of the tubes remote from the nozzles, said conduit being spaced from the walls of the container and having a foraminous diaphragm therein.

3. A apparatus for treating oils comprising a container for the oil, heads spaced apart and dividing the container into compartments, tubes extending through the space between the heads and connecting the compartments at either end thereof, nozzles placed near the ends of some of said tubes so as to inducea flow of oil through the tubes when steam or a gas is injected through the nozzles, and means. for supply ing steam or a gas to said nozzles.

4. An apparatus for treating oils comprising a container for the oil, heads spaced apart and dividing the container into compartments, tubes extending through the space between the heads and connecting the compartments at either end thereof, nozzles placed near the ends of some of said tubes, means for injecting steam or a gas through the nozzles so as to induce a flow of oil through the tubes, andm'eans to pass aheating fluid through the compartment between apart and dividing the the center of the confiow of oil through some of said tubes near tainer so as to induce a said group is injected therethrough, and means for supplying steam or a gas to the nozzles.

6. An apparatus for treating oils comprising a container for the oil, heads spaced apart and dividing thecontainer into compartments, tubes extending through the space between the heads and connecting the compartments at either end thereof, means for injecting steam or a gas into one en each of a group of some of said tubes near the center of the container, and a conduit connecting with the head opposite the inj ecting means and surrounding the ends of the tubes in said group, said conduitbeing ,spaced from the walls of the container.

7. An apparatus for treating oils comprising a container for the oil, heads spaced container into comtubes extending through the partments,

the heads and connecting the space between compartments at either end thereof, means for injecting steam or a gas into one end of each of a group of some of said tubes near the center of the container, and a conduit connecting with the head opposite the injecting means and surrounding the ends of the the tubes in said group, said conduit being spaced from the walls ofthe container and increasing in area from the head to the end of the conduit. I

8. .An apparatus for treating oils comprising a container for the oil, heads spaced apart and dividing the container into compartments, tubes extending. through space between the heads and connecting the compartments at either end thereof, means for injecting steam or a gas into one end of each of a group of some of said tubes near the center of the container, a conduit connecting with the head opposite the injecting means and surrounding the ends of the tubes in said group, said conduit being spaced of tubes when steam or a gas the center of the container, d of' the' of some of said from the walls of'the container, and a foraminous diaphragm in said conduit.

9. An apparatus for treating oils com prising a container for the oil, heads spaced apart and dividing the container into compartments, tubes extending through the space between the heads and connecting the compartments at either end thereof, means for injecting steam or a gas into one end of each of a group of some of said tubes near necting with the head opposite the injectlng meansand surrounding, the ends of the tubes in said group, said conduit being spaced from the Walls of the container, and means for passing a heating fluid through the compartment between the heads.

10. An apparatus for treating oils comprising a container for the oil, heads spaced apart and dividing the container into compartments, tubes extending through the space between the heads and connecting the compartments at either end thereof, nozzles placed near the ends of some of said tubes so as to induce a flow of oil through the tubes when steam or a gas is injected through the nozzles, and means for supplying low pressure saturated steam to said nozzles, and means for passing high pressure-saturated steam through the compartment between the heads.

11. An apparatus for treating oils com; prising a container for the oil, heads spaced apart and dividing the container into compartments, tubes extending thrc gh' the space between compartments at either end thereof, a nozzle placed near the end of each of a group tubes near the center of the container, so as to induce a flow of oil through said group of tubes when steam or a gas is injected therethrough,other and, surrounding tubes serving or the return of the oil.

a conduit con- 7 the heads and connecting the PERRY oAssmY.

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