US1677777A - Heat-interchange device - Google Patents

Description

JuIy 17, 19 28. 1,677,777

c. R. HOUSEMAN HEAT INTERCHANGE DEVICE Fil ed Jan. 25, 1926 2 Sheets-Sheet 1 July 17, 1928.

cfR. HOUSEMAN HEAT INTERCHANGE DEVICE Filed Jan. 25, 1926 2 Sheets-Sheet 2 Patented July 17, 1928;

UNITED STATES PATENT OFFICE.

CECIL ROBERT HOUSEMAN, OF WEMBLEY, ENGLAND, ASSIGI Q'OR, BY MESNE ASSIGN- MENTS, TO ATR- REDU'CTION COMPANY, J INCORPORATED,

YORK.

Application filed January 23,1926, Serial No.

This invention consists in improvements in means, or apparatus, such as.those de-.

foam, caused by the gas rising through the liquid in bubbles, or small portions of.gas enveloped mostly by thin'film's of the liquid. Suitable elements may be constructed as hereinafter described with reference 'to the accompanying drawing in which:

Figure 1 illustrates, in section, an apparatus consisting of a number of elements each constructed in accordance with this invention and arranged to form a column. Figure 2 is a plan of part of Figure 1. Figures 3- and 4 show, in perspective, alternative forms of thin corrugated copper ribbons hereinafter referred to and Figure 5 shows in plan, drawn to an exaggerated scale. a fragment of the element, hereinafter referred to, comprising alternating corrugated and plain ribbons. 7

Each of the elements A shown in' Figure 1 consists in, or comprises, thin copper ribbons a and b of suitable small width. one (a) of which is plain and the other (b) is corrugated transversely at a right angle as shown in Figure 3, or diagonally as shown in Figure 4. The depth of the corrugations would be determined by the physical properties of the particular liquid to be operated upon, and is generally less than one-tenth of one millimetre. The said ribbons are alternatively arranged, as indicated-in Figure 5,and are then wound spirally into the required form to constitute an element having the requisite compactness and a great number of short and minute passages upethrough which the gas will pass, or can to pass, in such manner that 1i uid, maintained at suflicient height upon t e element, will be converted into froth, or foam, in the space above where intimate contact between the gas and liquid will be obtained, the gas caused,

A CORIOB-ATION OF NEW HEAT-TNTERCHANGE DEVICE.

83,232, and in Great' Britain January as, 1925. v I

ribbon b as shown in Figures 2 and 5. c in-- dicates radial bars fixed on each side-of the element A for maintaining the ribbons in position between rings (Z and e. p

The passing of the li uid from the element A, or from each 0 the said elements if, as will usually be the case, a number of superposed elements be employed one above the other, as shown'in Figure 1, is effected independently of the small spaces, or perforations, for the gas by providing each element with an overflow conduit B and seal preferably arranged as indicated in Figure 1. The liquid, resulting from the condensation of the foam, or froth, and which has passed over the overflow B which determines the depth of foam, or froth, uponany par ticular element, flows into a well g having a lower portion dipping into another well h constituting a seal up which the liquid rises and from which it passes to the next element (or into the receptacle for the treated liquid if the operation be completed by a suitable number of. distributing pipes This arrangement of wells allows liquid-to pass downwards, but prevents gas passing upwards along the same path when the element A is functioning normally and is capable of giving great compactness ina tier of elements.

It is to be understood that the invention is not limited to the precise construction of element hereinbefore described and illustrated in the accompanying drawing, as modifications may be made without departing from the scopeof the invention.

What I claim 1s: I

An apparatus for use where intimate contact between a gas and a liquid is desired,

said receptacle to support a. body of liquid space between the plain ribbons, whereby and to permit the passage of gas therethe plain ribbons are maintained in spaced through, said means comprising a series of relation and a suflicient surface is provided 10 alternately plain and corrugated ,ribbons, the to maintain a liquid between said strips. corrugations in said last mentioned ribbons In testimony whereof I have signed my being angularly disposed, said corrugated name to this specification.

ribbons filling a substantial portion of the CECIL ROBERT HOUSEMAN.

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