US1684270A - Oil reclaimer - Google Patents

Description

Sept; 11, 1928." 1,684,270

A. L. HENNY OIL RECLAIMER Filed Aug. 12, 1925 2 Shets-Sheet 1 TO CENTRI FUGE.

\L INVENTOR WITNESSES I f H MAM k-@13 ATTORNEYS A. L. HENNY OIL RECLAIMER Filegl Aug. 12, 1925 2 Sheets-Sheet INVENTOR WITNESSES ATTORNEYS Sept. 11, 1928. I 1 1,684,270 I it (i Patented Sept. 11, 1928.

UNITED STATES ARNOLD L. HENNY, OF PORTLAND, OREGON.

OIL nnonairrnn.

Application filed August 12, 1925. set-m1 no. eases.

My invention comprises an apparatus for separating oils into constituents of varying density by volatilization of the lighter portions. This apparatus is susceptible of application either to the reclamation of used oil, such as automobile crank-case drainings, or to the original refining steps. In reclaiming used oil the diluents, such as gasoline, are removed and recovered by my invention, leaving the lubricating oilin condition for further treatment, for example, the separation of solid impurities. My device is capable of being used in immediate conjunction with internal-combustion engines to overcome dilution of the lubricant.

In these drawings,

Figure 1 is a vertical sectional view taken centrally and longitudinally through the apparatus forming part of my invention.

Figure 2 is a vertical transverse section through the casing forming the separating chamber, taken on line 22 of Figure 1.

Figure 3 is a bottom plan View of one of the hot plates.

Figure 4 is a sectional view taken therethrough on line ti of Figure 3, and

Figure 5 is a detail section taken on line 5-5 of Figure 1.

Referring now to these figures, the apparatus includes an upright casing having at its top an outlet 11 opening into the upper end of a downwardly inclined outlet pipe 12 whose lower end opens into a water-jacketed condenser 13. The jacket 14 of this condenser has water inlet and outlet pipes 15 and 16.

Within the separating chamber 31 of casing 10, which latter has a heavy insulating lagging 17 is a vertical series of staggered inwardly overlapping hot plates 18 and 18, each heated by steam or other suitable pipes 19 upon the lower surface thereof, as seen particularly in Figures 3 and 4. One of these hot plates 18', it will benoted from Figure 1, is curved with its inner free edge underlying the inner end of an inlet pipe 20, thecurve being one of constantly diminishing radius from the lower edge outward, so that the free edge below the inlet pipe 20 is nearly flat and the edge attachedto the opposite wall of the casing is turned well upward. Open ing into the outer end of this inlet pipe 20 is the reduced portion 21 of a feed pipe 22 carrying steam, preferably superheated, or other hot gas at a temperature sufiicient to vaporize the diluents met with in the oil being treated. Opening into this reduced portion 21 is the In utilizing this apparatus in accordance with my improved method, the oil to be refined or reclaimed is fed through the oil sup ply pipe 26 to the jacket in which it is heated around the outlet pipe 12. The heated oil passes to the spray tip 23 through the feed pipe 24.- where it is caught by the steam or other hot gas blown in through the pipe 22. This steam or other hot gains velocity in its passage through the reduced portion 21 and sucks the oil from the spray tip 23 in the form of tine spray which is carried along with the steam tl rough the inlet pipe 20 of the casing. During the passage of the fine particles of oil with the steam or hot gas through the pipe 20, the oil is further heated and this high temperature together with the large surface exposed to evaporation by breaking up the oilinto a fine spray, causes any gasoline or other volatile diluent to evapcrate almost instantly.

The vapors are blown from inlet pipe 20 into the separating chamber onto the upper curved hot plate 18 whose curvature increases in an upward direction. This plate, like the other plates 18 is maintained at a temperature preventing condensation of the vapors which then pass up through the outlet 11 and through outlet pipe 12 where they heat the oil supply in the jacket 25, finally passing into the condenser 13. Here the vapors are condensed and the condensates run down into a container 27 through a pipe 28. The gasoline, which floats, may be drawn from the container 27 through a pipe 29 and the Water may be drawn off through a pipe 30.

The increasing upward curvature of plate 1ST is such that the plate is nearly flat below the inlet pipe 20 but is of much shorter radius at the opposite side. Thus the entering stream of vapor is given a'constantly increasing upward deflection, subjecting the entrained oil particles to centrifugal force which causes them to separate out of the vapor current and collect on the plate.

The oil sprayed onto the hot plate 18 trickles down in a thin film from plate to plate. The oil which drops from the lowermost hot plate collects in the bottom of the separating chamber and may be drawn oil through a pipe 32 and if itoil to he re claimed or further freed of heavier matter it may then be transferred to a centrifuge.

If the lower end of pipe 28 is submerged in the liquid within container 27 as shown in Figure 1, a partial vacuum may be set up bythe condensing steam, whereby to draw the steam and vapors more rapidly through the outlet pipe 12. This may be controlled by a. valve 33 in a branch 34 of the pipe 28 shown also in Figure 1.

Having now particularly described and as' certained the nature of the invention, and in what manner the same is to be performed, what is claimed is v 1. An oil purification apparatus of the distillation type comprising the combination of a casing having an inlet nozzle, a hot vapor supply pipe in communication with said inlet nozzle, an oil supply pipe having a spray tip at itsdelivery end opening into said vapor supply pipe, and an upwardly curved bafile plate having its lower end immediately adjacent, approximately tangential to and below the axis of said nozzle.

2. In an apparatus for theseparation of diluents from oil, in combination, a casing,

an inlet, a hot vapor supply pipe in communication with said inlet, an oil supply pipe having a spray tip at its delivery end opening into said vapor ipe, a series of alternating oppositely inclined baflles within said chamber, one of said bafiles being positioned opposite said inlet and having its lower end adjacent said inlet, said oppositely positioned baflie having an upward curvature of diminishing radius.

3. In an apparatus for the separation of diluents from oil by heat of the type wherein heat remaining after said separation is utilized to preheat the oil, the combination of a casing, a nozzle for the simultaneous 1n ec-' tion therein of comminuted oil, vaporized diluentsand treating vapor, an imperforate plate therein of upward curvature of diminishing radius opposite said nozzle, a series of alternate downwardly inclined imperforate plates below said curved plate, heating means attached to each of said plates, an outlet for oil below said plates, and an outlet for said vaporized 'diluents above said plates.

ARNOLD L. HENNY.

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