US1204121A - Apparatus for the evaporation of fluids. - Google Patents

Description

. C. NEUBERGER.

. J. LOEBINGER & H

F. P. BERGH, H

APPARATUS FOR THE EVAPORATION 0F FLUIDS.

APPLICATION FILED APR. [4. i911- RENEWED APR. 10,1916.

Patented Nov. 7', 1916.

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FREDERICK PENTZ BERGH, HUGO J. LOEBING ER, AND HENRY CHARLES NEUBERGER,

OF NEW YORK, N. Y., ASSIGNORS, BY MESNE ASSIGNMENTS, TO GENERAL REDUC- TION COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

APPARATUS FOR THE EVAPORATION OE FLUIDS.

Specification of Letters Patent.

Application filed April 14, 1911, Serial No. 621,142. Renewed April 10, 1916. Serial No, 90,284.

To all whom it may concern: I

Be it known that we, FREDERICK P. BnRoH, HUGO J. LOEBINGER, and HENRY C. NEUBER- GER, citizens of the United States, residing at New York, in the county of New York and State of New York, have invented cer tain new and useful Improvements in Appa-' ratus for the Evaporation of Fluids, of which the following is a specification.

Our invention relates to an apparatus for the evaporation of fluids.

The object of the invention is to provide an apparatus particularly designed for effective utilization in carrying out the process claimed in our application for Letters Patent, Serial Number 464,257, filed November 24th, 1908, (Patent No. 997,950 of July 18, 1911.) While, in carrying out the proc ess set forth in said application various forms of apparatus might be employed, a construction embodying some of the gen eral features of the apparatus described but not claimed in that .process application in conjunction with the additional features herein set forth has been found to be effective in use and of particular advantage, enabling the steps of creating and maintaining the different strata in the vaporizing chamber to be carried out. i

Our invention is embodied in preferable form in the apparatus hereinafter de scribed and illustrated in the accompanying drawings.

In these drawings, Figure 1 is a side view in elevation, partly in vertical sect-ion of the apparatus; Fig. 2, a side-viewpartly broken away looking from the left of Fig. 1

toward the right; Fig. 3, a top plan View,

partly broken away, on a small scale of the apparatus and Fig. 4, a detail of part of the atomizer.

Referring to the drawings, the fluid to be evaporated and containing in solution, suspension or emulsion, a solid, viscid or oily content is placed in a container vessel 1 and fed therefrom by a pipe 2 to suitable atomizing means 3. These atomizing means are mounted on a support 4 which is attached directly against the inside surface of one wall of a tank, vessel, box or room 5, constituting a vaporizing and collecting chamber. This vessel is polygonal in form, the object of such formation being to insure a straight unimpeded sweep of the sprayed fluid in a layer across the chamber in distinction from gyratory or vorteX movement such as.might be given to the spray by a chamber with curved walls. Preferably the vessel is rectangular. although in some cases it might be desirable to employ some other polygonal figure, as

a heptagonal or hexagonal shape.

The atomizing means 3 preferably extend across the entire width of one wall of the chamber for the purpose of spraying the fluid being led into the branch pipes of the atomizer, emerges fromthe upper open ends thereof. An air tank 5, communicating with an air compressor 6, forces air through the pipe 7 and out through the horizontally projecting nozzles 8 disposed over the open nozzles of the fluid pipe and thus the fluid as it emerges'from the supply pipe is met by blasts of air which project the. fluid from the rear wall in a layer of fine spray across the chamber.v

The force of the air pressure on the atom izer is so regulated as not to drive the spray across the chamber with such velocity as to strike the opposite wall with a rebounding force so as to avoidbreaking up the stratum formation of the spray.

'Below the atomizer and above the bottom of the chamber inthe wall 9 of the chamber, which wall is at an angle to the wall against which the atomizer is mounted and in the case of the preferred rectangular chamber in one of the walls at right angles and adjacent to the atomizer-supporting wall, there is provided a rectangular opening 10 extending substantially. the entire width of the wall 9 and serving to admit a body of air or other vaporizing gas. Anexpansion and heatenbox or' chamber 11, communicates with this opening, extending the entire length thereof. In this box maybe mounted a steam heated coil 12 for the purpose of heating the air or'other gas passing Patented Nov. 7, 1916.

into the main chamber. A blower 13preferably also extending the entire width of the box 11 supplies the air or other gas through a flat pipe 14, substantially rectangular in cross section and also coinci-. The

dent in width with that of the box. cross area of the entrance box and of the opening- 10 is greater than the cross area of the supply pipe 14, whereby the air is expanded. and the velocity of the current is reduced asit enters the vaporizing chamber 7 so that the vaporizing air or other gas will move across the chamber at a comparatively low velocity thereby merely occupying the space below the atomizer and avoiding such impact with the opposite wall as to cause a rebound and a -mixing and vortex action in the chamber. This controlled velocity in conjunction with the angle to the projection of the spray at which the body of gas moves also serves to form and maintain such body quiet zone of gaseous matter below it into.

of gas in a stratum separate from the layer or stratum of spray. The formation of this vaporizing stratum above the bottom of the chamber also creates a distinct stratum or which the concentrate resulting from the evaporation drops. The entering body of air or other gas rises and meets the layer of spray and serves to effectively evaporate the fluid wholly or partly and the dried or concentrated product falls to the bottom of r the chamber. A gate 15 may be provided at the bottom if desired, to enable the concentrate product to be removed.

Near its upper end and-on the side of the chamber at ,which the atomizer is located and abovethe latter is provided inthe wall of the chamber a longitudinal rectangular efliuent' opening 16 extending substantially the entire width of the Wall. This opening has a greater area than the inlet opening 10 and 1s of suflicient capacity to permit the unimpeded'continuous flow of an amount of vapor equal to the amount of vaporizing air introduced plus the amount of air driven through'the atomizer. To regulate this coordinate outward rate of flow of the vapor, a sliding regulator door. or shutter 17 adapted to increase or lessen the size of the openmg 16, may be provided. The regulated capacity of this exit and the movement of the vapor and other efliuent towardthe exit at an angleboth to the direction of projection oi the spray and to the direction of the incoming vaporizing gas insures that the eflluent will also'be maintained in a distinct stratum above-the .spray and drawn ofl at 'such a rate as to avoid commingling with the other bodies or breaking up the stratification.

From the opening 16 leads a pi e 18 of a width coincident with the widt of the opening to avoid obstructing the flow and creating back pressure. This pipe is preferably rectangularin cross-section. It leads the efliuent to a collecting chamber 19, the walls of which may be made of gauze or other permeable material, if desired, to perfrom the line 2323 to 2424 is formed andmaintained the efiiuent stratum, the vapor particles of which pass out of the exit open-- ing.

Having thus described our invention, what we claim 1s:

1. An apparatus for evaporating fluids containing in solution, suspension or emulsion a solid, viscid or oily content consisting of a polygonal vaporizing chamber, atomizing means placed adjacent one Wall of the chamber and operable to project spray in a layer from said wall across the chamber, means to admit in a substantially horizontal sheet a vaporizing body of gas to said chamber below the atomizer and exit meansfor the vapor, substantially as described. I

2. An apparatus for the evaporation of fluids consisting of a vaporizing chamber, a

source of fluid supply, atomizing meanscommunicating with said source and mounted adjacent the wall 015' the chamber and having means to project spray across the chamber, means below the atomizing means to admit a body of moving vaporizing gas in a sheet substantially parallel to the spray but at an angle to the projected movement of the spray, and an effluent opening above the atomizer, substantially as described.

3. 'An apparatus for the evaporation of fluids consisting of a chamber in which the evaporation is conducted, atomizing means 7 in said chamber operable to direct the spray in a layer across the chamber, means of fluid supply communicating with said atomizer, and an elongated gas admitting openingbelow the atomizer and extending longitudinally at an angle to the length of the atomizer, and an efliuent opening above the atomizer, substantially as described.

4. An apparatus for evaporation of fluids, consisting of a chamber in which the evaporation is conducted, an atomizer in said chamber extending across the same and hav 'ing means .to direct the spray in a horizontal layer across the area of the chamber, said chamber having a gas admitting opening below the atomizer and extending at an angle to theatomizer, means to impel a body of gas through said opening at an angle to the projected movement of the spray and said chamber having an elongated opening above the atomizer and on the same side of the chamber as the atomizer to permit the es cape of the efliuent, substantially as described.

5. An apparatus for the evaporation of fluids, consisting of a polygonal vessel, a source of fluid supply, anatomizer located within said vessel against one side wall thereof and extending the entire width of said wall, said atomizer having meansto project the spray from the wall across'the interior of the vessel in a horizontal layer,

said vessel having below the level of the atomizer an elongated, rectangular opening in a side of the wall adjacent to and at an angle to the atomizer-supporting wall, said opening extending substantially the entire width of its wall and a rectangular opening atomizer for spraying the same, said vessel having an opening below the level of said fluid, means to direct a current of gas through said opening at an angle to theprojected movement of the spray, a pipe to supply said gas, and a chamber between the plpe and opening having a greater area than that of the pipe, substantially as described. 7. An apparatus for the evaporation of fluids consisting of a vessel to receive the fluid, an atomizer, said vessel having an elongated opening above said atomizer, a

regulating device to control the area of said opening, and means to admit a. body of vaporizing gas to the vessel, substantially as described.

8. An apparatus for the evaporation of I fluids consisting of a vessel, an atomizer mounted therein, said vessel having an elongated opening below the level of the atomizer, a gas admitting pipe having a cross area equal to the cross area of the opening, said vesselhaving above the atomizer an elongated efliuent opening and a pipe of cross area equal to that of the opening and leading from said opening and a vapor-separating chamber to which said pipe leads, substantially as described.

9. An apparatusi'or the ei aporation of fluids consisting of a closed vessel with atomizing means attached to the wall of the chamber above the bottom thereof to leave a collecting space below the atomizers into which the dried or concentrated particles are permitted to fall by gravity and to be collected away from the air current, and means to project a vaporizing body of gas horizontally across said chamber to vaporize the atomized liquid.

10. An apparatus for the evaporation of fluids consisting of a vessel, atomizing means mounted on the wall of the vessel so as to be adapted toproject a spray horizontally across the chamber of the vessel and located above the bottom of the vessel a sufficient distance to permit the dried or concentrated particles to separate from the spray and drop to the bottom of said vessel into a collecting space, and means for admitting and projecting a current of air or, other gas. from the wall' of the vessel across the same'in a plane parallel to the plane of projection of the spray.-

In testimony whereof we have aflixed our I signatures in presence of two witnesses.

FREDERICK rnu'rz BERGH.

HUGOJ, LOEBINGER.

HENRY CHARLES NEUBERGER.

Witnesses:

VFREDERKTS. MORSELL,

MA IE F. RYAN.

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