US1963200A - Deaerating and deoiling machine - Google Patents

Description

Jun 19, 1934. c. G. HAWLEY 1,963,200

DEAERATING AND DEOILING momma Original Filed July 24, 1926 ///l I l I/ III 'l/l l/I/ll/ l/l/ ll Patented June 19, 1934 UNITED STATES DEAERATING AND DEOILING MACHINE Charles Gilbert Hawley, Chicago, Ill., assignor to Centrifix Corporation, Cleveland, Ohio, a corporation of Ohio Continuation of application Serial No. 124,681,

July 24, 1926.

This application April 5, 1932,

Serial No. 603,417. Renewed November 3, 1933 Claims. (01. 210-61) This invention relates to the important and little-developed art of removing oils and gases from liquids that should be freed from such foreign substances. Such is the object of the present a bi invention.

As will presently appear the machine embodying this invention is of a centrifugal type in which the stream of liquid under treatment is set into a state of rotation which increases the travel 1 of the liquid and affords ample time for the separation of the lighter substances. Further and importantly, the entrance of the liquid to the machine is accompanied by the fine sub-division of the liquid stream and disturbances which effect the combing out or liberation of even minute particles and globules of gas or oil that are very closely or firmly occluded in the liquid. Further and of utmost practical value, the whirling action of the liquid, which takes place within the machine as above mentioned, is suppressed in the region in which the lighter substances accumulate following their separation from the liquid. Without such protection, the vortexial action of the liquid within the machine would 2 inevitably result in the extraction of the separated substances and the discharge thereof from the machine along with the stream of liquid.

The invention also consists in novel combinations of parts and in details of construction com- 3 prising such machine, and whereby the foregoing process may be reliably conducted; all as hereinafter described and particularly pointed out in the claims.

The invention will be readily understood on L reference to the drawing that forms part of this specification; and in which, Fig. 1 is a vertical section of a machine embodying the invention and whereby the novel process may be carried out; Fig. 2 is a horizontal section thereof on line 2-2 1 of Fig. 1; Fig. 3 is a horizontal section on the line 3-3 of Fig. 1.

The machine in its best form comprises a vertical casing preferably composed of the large dome portion 2 and the smaller bottom portion 3. The dome portion is a closed vessel, and is provided with the valved and normally closed top outlet 4 for the gases, and preferably with the lower, side outlet 5 for the discharge of the oil or other liquid impurities. The outlet 5 in fpractice is also valved and normally closed. Ob-

viously, in operations of large size the outlets 4 and 5 may be continuously open, but a better understanding of the invention will be gained by first regarding them as normally closed and I only intermittently opened to discharge the collected substances. The bottom member 3 con-- tains the flow-balancing opening 6, the underly- I ing chamber 7 and the outlet connection 8. The stand-pipe 9 rises from thecentral portion 7 and passing through the chamber 7 is expanded within the dome; to form the head 10. The liquid inlet pipe 12 enters the lower end of the standpipeQ. The liquid outlet pipe 13 leads away from the connection 8. Upon the removal of the bottom bolts 11, the dome 2 may be removed from the parts i 3 to 10 forming the bottom of the machine.-

It should at once be understood that the pipes 12 and 13 rise to heights above the dome, or are used under suflicient pressure to keep the dome filled with liquid at least to the height of the side outlet pipe 5. Further, it is tobe understood that the gas outlet 4' is opened whenever the liquid level, L, is forced below the side outlet by the accumulation of gas in the top of thej dome. In practice, the dome is equipped with a gage; (not shown), either serving to automatically' release the accumulating gas or to makethe liquid level, L, visible so that the outlet 4 may be manually opened when required. Gages of such kinds are too well known to require illustrationhereinj On entering the head-10 theburdened liquid, that is, the liquid which isburdened orcontami nated by impurities of either solid, gaseous-or liquid form and of less specific gravity encounters the centrifugal'tuyre 14, which has manyin wardly directed narrow slit-like tangential'tuyres 14'. The'tuyrei'sprovided with an im: perforate bottom 14", so that all of the liquid from the space 10"must pass through the tangential 'tuyeres in order to reach theexterior of the head 10, and find a passage leading downward to the outlet. Obviously the liquid takes on a rapid whirling motion within the tuyere. Conveniently, the barrel of the tuyre is provided with a top flange 15 whereby it is attached to the top of the head 10. The fine sub-division of the liquid in the tuyres of the member 14, and the impingement of the liquid against the many edges of the tuyere forming blades thereof, serve to disturb and free the particles or globules of gas and oil 19. carried by the liquid; and the whirling of the liquid within the tuyre 14 accomplishes an excellent centrifugal separation of the substances and in such state they are expelled upwardly through the open upper end of the tuyre 14. .9. Several rotations, of any given part of the liquid, take place in the tuyre and thus ample time is allowed for both the centrifugal and the gravity separation and agglomeration of the minute globules, so that globules and bubbles of consid- L to draw more vigorously from one side of thedome is corrected by making the hole 6 properly eccentric to the stand-pipe 9 and space '7, (see Fig. 1). V

Were the whirling liquid allowed to escape freely from the tuyere, the whole'body of liquid in the dome would be set into rapid rotation and a downward drawing central vortex, starting at the level, L, would be setup and necessarily in direct connection with the outlet; Any such central vortex would have the effect of emptylngthe the intended purpose of the large measure, would be top of the dome and machine, at least in defeated, v

For the avoidance of so-vital a defect, I employ means which prevent the communicationof the whirling-motioninthe tuyere to the liquid in the top'of-the dome and which therefore prevent the initiation-ofthe objectionable vortex at. the liquidsurface orlevel. The means referred to possess theadvantagesof extreme simplicity and durability comprising onlythe barrel. 1G and the vertical spaced blades or baffles 1'7 therein. The deviceis called-a cellular barrel,.interposed'between the source -0f=whirling motion and the level at which the lighter or floatable substances are disengagedfrom the heavier liquid.

Most conveniently the barrel 16 is a mere upward extension of the stationary. tuyere, being securedto the headlO by the same flange 15. It should be apparent that the cellular barrel-and thedome-neednotbe circularbut may be of any desiredshape in-cross section. I e g This application is a continuation of applicants earlierfiledapplication, S. N. 124,681filedJuly 24, 192? Y.

- Having thus-describedmy.invention, I claimas new and desire to-secure by Letters-Patent;

LUA machine'for separating lighter floatable substances from liquidsof greater weight, comprising a casing having a liquid outlet at itsbottom, in combination with a liquid inletpassage risingwithinthe lower part of said casing, a tan gentiallybladed tuyere part of said passagaand, a cellular duct positioned belowthe liquid level in said casing. and forming the outlet for said tuyere and passage.

2. A machined-or separating lighter floatable fixed within and 1 forming substances from liquids of greater weight, comprising a casing having a liquid outlet at its bottom and provided with means for discharging the separated substances from its top, in combination with a liquid inlet passage rising within the lower part of said casing, a Whirl-promoting tuyere positioned in and forming part of said passage, and,

a longitudinally subdivided vertical duct positioned below the liquid level of said casing and forming the outlet for said whirl-promoting tuyere and passage.

3. A machine for separating lighter floatable substances from liquids of greater weight, comprisinga casing having a liquid outlet in its bottom and provided with means for discharging the separated substances from its top, in combination with a liquid inlet passage opening upward within the intermediate part of said casing, an angularly bladed Whirl-promoting tuyere interposed in and forming part of said passage, and, whirl suppressing means positioned in the. upper part. of said passage.

, 4. A liquid-purifier comprising a casing adapted tocontaina stand of liquid and having its upper part open for the discharge of impurities from the top thereof, said. casing having-a purifiedliquid outlet in itslower part, in combination with a liquid inlet passagev of'smaller diameter than .and opening vertically within the intermediate part of saidcasing, means incorporated withthe lower part of said inlet passage and .adaptedto cause. the entering liquid'to rotate .vortei'rially therein, and, means passage and adaptedto terminate such whirling, movementof the liquid'and direct it upward toward thetop of said stand ofliquidwithin the a in .f

51 A liquid purifier comprising acasing-adapted. to contain a standlof liquid and having its upper part open for. the discharge of impurities from the top thereof ,said casing having a purified liquid outlet in its lower part, in combination with a liquid inlet passage of smaller and opening vertically within the intermediate part of saidcasing, atangentially slotted tuyre positioned within the lower part oi'said inlet passage and' adapted to cause the entering liquid to. rotate vortexially therein, and, an opposing bladed. structure positioned within the upper part of said inlet passage and adaptedto terminate.

such whirling movement of the liquid anddirect it upward towardthe top of said stand ofliquid within the casing.

CHARLES GILBERT VHAWLEYZV Within the upper part ofsaid; inlet diameter than-

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