US871245A - Means for impregnating liquids with gas. - Google Patents

Description

PATENT-BD NOV. 19, 1907.

H. STROH.

MEANS FOR IMPRBGNATING LIQUIDS WITH GAS. APPLIUATION FILED Nov. 9.?1906.

' 'Wit casses:

m5 Nosms PsrERs ca, umsmmarawl n. c, A

HEINRICH STROH, OF HEILBRONN, GERMANY.

' MEANS FOR IMPREGNATINGLIQUIDS WITH GAS.

To all whom 'it may concern.'

Be'it known that I, HEINRICH STROH, a subject of the German Emperor, residing at Heilbronn, Germany, have invented new and Im roved Means for Impregnating Liquids wit Gas, of which the following is a specification.

The object of my invention is to provide an apparatus for impregnating liquids with gas in order to produce physical, chemical or biological effects in liquids or gases or to regenerate and purify water.

In my apparatus gas is forced through an osmotic partition into a liquid which is caused to flow along the other side of such partition while the impregnated liquid runs over alengthy course in a pipe, or conduit, so as to insure floating gas bubbles to be absorbed and prevent segregation of the incorporated gas.

The ap aratus by which I obtain these results is il ustrated in the annexed drawings.

Figure l is a longitudinal section partly broken away; Fig. 2 is a cross-section of my invention.

A ipe abc has its middle portion b enlarge and preferably made of 'line wire gauze which `in some instances is coated with a gas absorbing substance such for example as a mixture of caoutchouc and finely ground carbon which thus forms a cylindrical membrane. This membrane is surrounded with a slightly wider and air-tight jacket d and the annular space between these parts is in communication with the gas ingress tube e and egress tube g which latter is fitted with V a tap h. The internal free space of the metal gauze pipe can be reduced by a more or less large core c whose ends are preferably pointed or egg-sha ed and slit endwise so as to engage in metal ic cross-strips for centering purposes.` The apparatus is fitted with an ascension pipe f and can be adopted independently of or in connection with any form of pipe installation for liquids.

14er independent use, the apparatus is placed vertically or slightly inclined so far into the liquid that the ascension pipe f is entirely lled with such liquid. By introducing gas into the a paratus the following action takes place. wing to the head pressure of the liquid and its adhesion to the wet metal gauze, a superior gas pressure can be created in the annular gas space to that of the liquid Without either the gas or the liquid being able to pass through the wire gauze.

' Specification of Letters Patent.

Application tiled November 9,1906. Serial No. 342.696.

Patented Nov. 19, 1907.

When the gauze is covered with a membrane, the difference in pressure can be carried still further. At the present time and independent of the pressure, the gas becomes absorbed or condensed through the mass of the membrane into which latter the liquid is unable to penetrate. By reason of natural diffusion, the gas is slowly carried to the next farther portion of the liquid slightly away -from the gauze. Practically, the diffusion affects only small depths, and therefore, the gas absorbed in a standing liquid can only escape therefrom in minute globules. The escaping gas passes upwards into the ascension pipe j' in which latter the real action of incorporating the gas takes lace correlative with the pressure and the so ving power of the particular gas used. The gas is caused to flow along the comparatively narrow ascension pipe and thereby induces a strong relative current of the liquid in the same direction with the result that a constant renewal takes place from below of the fresh liquid so causing the same to come in contact with the membrane, while the impregnated liquid passes upwards.

I/Vhen the apparatus is placed in a tank, the height of the column of liquid and consequently the strength of current generated in the apparatus with its resulting effect on the absorption of gas are limited by the depth of such tank. By placing the apparatus in a conduit, the liquid is enabled to flow through both. This arrangement will enable the effective pressure column or head to be increased to a great range.

l/Vhen a portion of mixed gases, after passing through the annular space, is allowed to escape from the tube g through the tap 7L a partial separation of the gases takes place. For example, when atmospheric air is used with Water as the absorbing medium, it will be found that a larger proportion of oxygen than nitrogen passes through the osmotic membrane and is absorbed in the water. Consequently the gas mixture passing through the membrane, will have gained in oxygen while the remaining gas at the other side of such membrane is richer in nitrogen.

I claim:

l. The apparatus for impregnating liquids with gas, which comprises an annular gas chamber in an enlarged portion of a pipe between a solid outer jacket and a wire gauze which latter forms a central water chamber as set forth.

i ingress nozzle and an egress nozzle connected 2. The apparatus for impregnating liquids with gas Which comprises a Water pipe combined with a Wire gauze enlargement and an external jacket over said Wire gauze, an

to said jacket, as set forth.

3. The apparatus for impregnating liquids With gas Which comprises a Water pipe combined with a Wire gauze enlargement, central plug in the interior of the Wire gauze, an eX- ternal jacket over said Wire gauze, an ingress nozzle and an egress nozzle connected to said jacket as set forth.

4. The apparatus for impregnating liquids with gas which comprises a Water pipe combined with a Wire gauze enlargement, a double pointed central plug in said Wiregauze, a cross-shaped centering holder at each end of said plug, an external acket over said Wire gauze, an ingress nozzle and an egress nozzle connected to said jacket as set forth.

HEINRICH STROH. lVitnesses:

ADALBERT L. BAUER, ERNST ENTENMANN.

Images