US394432A - Apparatus for condensing liquids - Google Patents

Description

(No Model.)

J.. H. BASSLER.

APPARATUS PoR GONDBNSING LIQUIDS. l No. 394,432. Patented Dec. 11, 1888.

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UNITED STATES PATENT QEEICE.

JOHN II. BASSLER, OF MYERSTOiVN, PENNSYLVANIA.

APPARATUS FOR CONDENSING LIQUIDS..

SPECIFICATION forming part of Letters Patent No. 394,432, dated December 11, 1888.

Application filed February 24, 1888. Serial No. 265,119. No model.)

.To all whom it may concern.-

Be it known that I, JOHN ll. BASSLER, a

l citizen of the United States of America, residvaporizing' and expelling the aqueous element contained in cane-juice, glucose, solutions ot' tannin, milk, &c.; and it consists in certain details of construction and combinations of parts, which will first be described in connection with the accompanying' drawing', and then pointed out in the clain'is.

In the accompanying drawing, which is a vertical section, partly in elevation, of my apparatus, A represents a vertical evaporating-vessel, preferably cylindrical in form and having an. outlet-flue, A', at its top, in which is placed a thermometer, t, the said vessel resting upon supports c., the bottom a sloping downward and inward, and being open, as at a2, so as to leave open communication with the air-flue. The evaporating-vessel is also provided with a door, A2, to aftord access to the interior for cleaning' it.

The evaporating-vessel is provided a short distance above its bottom with a non-heatconducting hopper, B, constructed preferably of a sheet-metal casing, b, filled with mineral wool nu The diameter of' the hopper is somewhat less than that of' the lower part of the vessel A, by reason of which an annular space is left between the hopper and the walls of' the vessel, in the upper portion ot' which is located a thermometer, tf One end of a drainpipe, C, enters the hopper, and the other end enters a seal-cup, D, placed in the mouth of' the receiving-can, E, the drain-pipe being, provided with a stop-cock, F.

Grepresents an air-flue leading, preferably, from a sub-earth duct, its upper end being in open communication with the interior bottom portion of vessel A. It is provided with a sliding-gate, g, working between cleats g inside the flue, for governing` the quantity of air to be admitted to the evaporating-vessel. H represents an anemometer placed in the tiue (shown in the drawing at a right angle to its true position) f'or indicating,l the velocity, and consequently the quantity, of air admitted. 'lhe line is also provided, opposite the anemometer, with a glass window, g2, through which the necessary observations ot' the anemometer may be made.

For the purpose of heating` the air to be delivered to the evaporating-vessel, I place any suitable number of' Bunsen burners, I, in the air-flue a short distance below the bottom of' the vessel, these burners being` connected to a gas-pipe, l, leadingl trom any suitable source of `gas-supply.

J represents a liquid-holding box, (a fragment only ot' which is showin) into which the liquid to be treated is placed.

K represents a steel pressure-cylimler provided at one end with a liquid-gage, and at its opposite end with a draw-oft" cock, lc.

There is also a man-hole in its top covered b v' a lid, lf2, t'or the purpose ot' access to the i11- terior ot' the cylinder for cleaning it.

L represents an injector located between the box J and cylinder K, with which are connected pipes l l', leading to the interior of the box and cylinder, respectively.

M represents a steam-pipe provided with a steam-pressure indicator, 911,1eadi1ig't'rom any suitable generator and enteringI the pressurecylinder at its top, and il represents a branch steam-pipe leading` t'rom pipe N to the injector.

O represents a liquid-pipe, the lower end of which enters and extends to near the bottom of the pressure-cylii'ider, and the upper end enters the evaporatiugr-vessel, near its top, at a right angle, and is provided with a sprayingI device, I), so arranged as to spray the liquid in an'outward and downward direction. The gas-pipe, liquid-pipe, and steam-pipes are each provided at a suitable place with a globevalve, r.

The operation of' my apparatus is very simple. The liquid to be treated is first placed in the box J. Steam is then let into the injector, which causes it to draw the liquid trom the box and force it into the pressure-cylinder. \Vhen the gage l.: indicates the level ot' the liquid desired to be maintained in the cylinder, steam is let. into the cylinder through pipe M. The pressure of' the steam on the liquid forces the latter, mixed with steam, up through IOO the liquid-pipe O and into the vessel A, where it is sprayed in an outward and downward direction, the steam at once liberating itself from the liquid and passing off through the exit-flue of the vessel, but meanwhile heating the upper portion of the vessel to a certain extent. It-will. be understood, however, that previous to this part of the operation the gas has been tu r 'r 1 e glY o :nto the burners and tle'tem'peifatiie of the air ihmaii'fli'ie (fraised to the proper degree. Then as the descending films of liquid pass through acontinuously-ascending current of hotrairthe desired per cent. of the aqueous element will,d sooner or later, be effectually evaporated and driven oit, when the condensed liquid will I'low from the hopper through the drain-pipe into the seal-cup, from which it will overflow into the can. As the seal-cup is never empty during the time the apparatus is in operation, the liquid therein will prevent the admission of cold air through the drain-pipe into the evaporating-vessel.

It will be apparent that the purpose of theV anemoineter is to indicate the volume of air entering the evaporating-vessel, while the thermometers are to show the temperatures at which the air enters and leaves that vessel, from the difference in which the operatorcan readily calculate the velocity of the current of hot air, so as to prevent it from becoming so .strong as to carry a portion of the liquid out with the vapor.

In another application for Letters Patent, filed by me of even date herewith, I have `shown and described certain portions of the apparatus embraced in the present application, none ofn which portions, however, are claimed specifically herein.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination, with an evaporating-v Vessel having an outlet-flue at its top and an opening in its bottom, of an air-flue in communication with-said opening, gas-burners in munication withsaid opening, gas-burners-in said fine, a pressure-cylinder, a liquid-vessel, an injector in communication with said vessel and the cylinder, two ,steam-pipes, one connected to the injector and the other ,entering the cylinder, and a liquid-pipe leading from the .interior of the cylinder .to the interior of the evaporating-vessel, near itstop, and provided with a spraying device arranged to spray the liquid downward, for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses. i

JoHN H. BAssLER.

Titn esses:

JOHN C. THAYER, ALBERT SPEIDEN.

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