US704818A - Temperature-exchanging apparatus. - Google Patents

Description

una. 704,318. Patented my. l5, |902'.

J. .DESMAROUX- vTEMPERATURE EXCHANGING APPARATUS. (Applicatxfmnv filed Dec'. 8, 190,1.) (llo Model.) 3 Sheets-Sheet .L

Eff/- fn nen 767/ my @1x I l l l f i LU Lm H7: u u u u mfr/mmf@ m7154170# W A cfosyaebmarazlx j m41/ By No. 704,818. Patented July l5, V1902-.

J. DESMARUUX. TEMPERATURE Exc-HANRTNR APPARATUS.`

(Application med Dec. e, 1901.)

'rus mams rcrns co.. PuoTDMTHo., wAsHmTON. D. u

(No Model.)

No. 704,8la. v Patented muy-15, 1902-;

.l. uEsMAnoux. Y

TEMPERATURE EX-CHANG'ING APPARATUS.

(Application'med Dee. e, 1901*.)

A SShQetS-Sheet 3.

(No lous.)

UNITED STATES f PirrsnrH OFFICE '.IosEPH DnsMARoUx, oF PARIS, FRAN-on, AssIeNoRfro COMPAGNIE GNRALE ARoI-IYDRAULIQUE, oF PARIS, FRANCE.

SPECIFICATION forming part of Letters PatentlNo. 704,818, dated July 15, 1902. Application led December 6, 19011 Serial No; 84,907. (No model.)

To all whom t may concern:

Be it known that I, JOSEPH DEsMARoUx,

machine -maker, of Alle Rue des Plantes, in?

the city of Paris, Republic of France,have

invented Improvements in Temperature-Ex' changing Apparatus, of which the' following is a full, clear, and exact description. c

The object of this inventionlis an improved temperature-exchanging apparatus Y fori permitting two fluids or liquids to: exchangecom-v pletely their temperatures, )and chiefly Adesigned to bring back to the normal temperature water which has been brought tofan ele-V vated temperature-e. g., 100o oentigradefduring a suitable time to destroyallthe germs that it may contain.

to the water which is to be sterilized. Y

The improved apparatus consists, essen? tially, in two adjacent passages formed bythe spiral coiling or rolling of two sheets"of `m etal` and by the interposition between these metal sheets of two spiral metal bands the width of g which corresponds to that of the passages,v

these spiral bands being respectively brazed to the opposite borders of the metal sheets,VY

so as to close completely each passage on one face thereof and so that the free openings of these two passages are on two opposite faces of the apparatus.

The two faces of the apparatus are each closed byaplate with a disk of caoutchouc or india-rubber interposed at the joint and serving to insure a fluid-tight closure of the free openings of the two passages.

The special arrangement of the improved apparatus insures an absolute exchange of the temperatures of the two'liquids, permits easy cleaning and inspection, and renders impossible any communication between the two liquids.

In order that the invention may be readily understood, the improved apparatus is shown in the accompanying drawings in principle, but by way of example only.

Figure 1 shows the apparatus in elevation. Fig. 2 is a vertical section of the apparatus, the plates being removed. Figs. 3, 4L, and 5 are horizontal sections on the lines A B, C D, and E F,respectively.

l Inlthevligures like letters of reference indicate the same parts.

,As showninithedrawings, the improved apparatus is formedby two sheets a b of any lsuitable metal-suchas copper, brass, galvanizedf or tinnedj iron, &c.-xed onto a core c at twodiametrically opposite generating-lines on the said coreqand rolled around this core, leaving between them a free space having, for example, a` width of about five millimetersand the ends of these sheets of metal are soldered, as shown in Figs. 3, 4, and 5, onto the casing d of 'the apparatus. These two sheets of meta-l a b thus rolled up form the two adjacent passages e f. Between these two sheets 'a b .of metal'are interposed two vmetal bands, gli, rolled spirally at the sametimeas the sheets of metal and brazed ontothe opposite borders or edges of the said'sheets,sothat each passage is completely lclo'sedonbone'side and open at the other and so that the free openings of these two passages 'are respectively on the two opposite faces of the apparatus.

The apparatus is closed on its two faces by lplates t', disks j of india-rubber or other suitable material being interposed at the joints to insure a duid-tight closure of the free openings of the two passages. Each plate thus only insures the closure of one passage. The two plates vl are connected together by bolts lo.

The entrance and exit of the two liquids which are to exchange their temperatures by their passage through the apparatus is eected for the one part by the openings lm, which communicate with the central spaces n o, into which respectively open the twopassages c f, andV for the other partby the two tubular pieces p Q on the external casing d at the end of each of these passages. One of the liquidsthe cold liquid, for example, the water to be sterilized-enters through the tubular piece p, circulates in the direction of the arrows drawn in full lines from the periphery toward the center, and goes out through the opening l. On the other hand, the second liquid-the sterilized water to be cooled, for exampleenters through the opening lm, circulates in the opposite direction in the direction of the IOO arrows drawn in chain lines from the center toward the periphery, and goes out of the apparatus through the tubular piece q. The sterilized water is thus cooled completely in a closed vessel and issues from the apparatus at a temperature near to that at which the water to be sterilized enters, and this latter goes out at the temperature at which the sterilized water has entered the apparatus. This arrangement insures an absolute exchange of temperature between the two fluids. Y Moreover, there can never be any communication between the two liquids even if the joints 7' of the apparatus were defective, since if a leak is produced the liquid cannot enter the adjacent spiral passage, since the latter is completely closed by a brazed metal band. Thus it need never be feared with this improved apparatus that the unsterilized liquid will soil the sterilized liquid. Consequently the improved apparatus insures absolute security whatever be the pressure under which the liquids circulate. Moreover, this arrangement enables the apparatus to be easily inspected and cleaned, since it is only necessary to remove the plates t' in order to see the interior of the two passages.

The improved apparatus can be employed for exchanging the temperatures of two fluids of any kind. It can even comprise a larger number of passages. In this case it is only necessary to roll a number of sheets of metal equal to the desired number of passages.

The form, dimensions, and detail arrangements of the improved apparatus can obviously be somewhat varied according to the different applications thereof.

I claiml. A temperature-exchanging apparatus, comprising a cylindrical member provided with two non communicating spirally-disposed passages, each of a width substantially commensurate with the length of said cylindrical member, one of said passages being normally open at one end of said cylindrical member and the other of said passages being normally open at the other end of said cylindrical member, detachable plates for engaging the ends of said cylindrical members,

thereby closing said passages at said ends, 5o and means for Aadmitting Iiuids to said passages and for permitting the escape of the same therefrom.

2. A temperature-exchanging device, comprising a cylindrical member provided with 5 5V a plurality of spirally-disposed non-communicating passages, each of a width substantially commensurate with the length of said cylindrical member, one of said passages beingnormallyopen throughout its entire length 6o at one end of said cylindrical member and the other of said passages being normally open throughout its entire length at the other end of said cylindrical member, detachable plates for engaging the ends of said cylindrical members,thereby closing said passages at said ends, and means for admitting iiuids to said passages and for permitting the escape of the same.

3. Atemperature-exchanging device, com- 7o prising a cylindrical member provided with a plurality of spirally-disposed non-communicating passages, each being of a width substantially commensurate with the length of said cylindrical member, one of said passages being normally open throughout its entire length at one end of said cylindrical member, and the other of said passages being normally open throughout its entire length at the other end of said cylindrical member, detachable 8o plates for engaging the ends of said cylindrical members thereby and closing said passages at said ends, means for admitting iiuids to said passages and for permitting the escape of the same, and a substantially cylindrical core coaxial with said cylindrical member and provided with two tubular passages parallel with the axis of said member, said tubular passages communicating separately with said spirally-disposed passages. 9o

The foregoing specification of myimprovements in temperature-exchanging apparatus signed by methis 21st day of November, 1901.

JOSEPH DESMAROUX. Witnesses EDWARD P. MACLEAN, MAURICE Il. PIGNET.

Images