USRE12089E - Still for absorption refrigerating apparatus - Google Patents

Description

REISSUED MAR. 3,v 1903.

-N. W. GONDIGT. STILL FOR AB'SORPTION REFRIGERATING APPARATUS.

APPLIOATION FILED DEO. 19, 1902.

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ATTQRNEQSY UNITED STATES PATENT OFFICE.

NATHANvW. CONDICT, OF JERSEY CITY, NEW JERSEY.

sTlLL Foa ABsoRPTloN REFRIGERATiNc APPARATUS.-

To all whom it may concern:

Be it known that I, NATHAN W. CoNDIOT,-a citizen of the United States of America, residing in Jersey City, county of Hudson, State of New Jersey, have invented an Improved Still for Absorption Refrigeratin g Apparatus,

,of which the following isa specification.

My invention has reference more particularly to that class of refrigerating apparatus which works by the absorption processi and the main vobject of my invention is to so construct the apparatus as to improve the operation of generating the gas and also to enable the generation of the gas to be under more perfect control.

In the accompanying drawings, Figure lis a vertical section of my improved still on the line 2 2, Fig. 2. Fig. 2 is a sectional plan view taken through the still. Fig. 3 is an elevation of the'front end of the still, and'Fig.

4is an elevation of the rear end of the same.

I make the 'main' body or generating-chamber of the still in the form of a horizontal cylinder A. My still is so constructed. that either exhaust-steam or live steam, or both, maybe employed,as convenience may dictate. For this purpose I arrange lthe steamcoils S in the liquor-spacein the horizontal cylinder Ain several independent sets. In this 'case they are in horizontal layers, each layer-being coiled in the serpentine form shown in the plan view, Fig. 2. In the drawings I have shown eight of these horizontal serpentine coils over each other, each coil being connected at opposite ends'to headers'H vH'.and P P'. The upper seven superposed coils S are connected at the front end to the inlet-headers H H', the ends of four coilsbeing connected to one header H, while the ends of the other four coils are connected to the other header H. Each pipe end opens into its separate bo'x h in the header, admission towhich from the common steam-space K is controlled by an independent hand- Vvalvole, Fig. 1t. The commonA steam-spaces K of the two headers are connected to the ,inlet-pipe M for the exhaust-steam by branches fm, so that by opening the appropriate valve or valves 1c the exhaust-steam can be admit- 'ted to any of the coils S in ,the still. In 'orderl that 'live steam maybeused, however,

when desired, I vprovide a live-steam-supply pipe, suoli as X, which may be connected to the bottom coil S' and also connected by branches to theinlet ends of the other coils,

Aor some of them, between the headers H H' Valves ai are provided to conand the still. trol tlie admission' of steam to the several coils. A brauch z,with valve Z from the livesteam pipe X, can be used to admit live steam to the headers H H' when desired. The relation of the amount of heating-surface furnished by the' coils to the quantity of liquor in which these coils are submerged in the cylinder is an important fact in the eflcient work-- ing ot the apparatus. For a given normal quantity of liquor in the horizontal cylinder the amount of the heating-surface in that quantity of liquor should be changed with the tension or temperature of the steam.

Thuswhen exhaust-steam' is used all the coils which can be put in the liquor-spaceof the horizontal cylinder A will be required;

but when llive steam is used onlya few of the coils will be eeded for the ecient operation of the apparatus.

The outlet ends of the coils S and S'vpass through the rear of the still A into headers coils S, which lead at the inlet end from the header H, have their outlet ends at'the diagonally opposite corner connected tov the header P, Fig. 3. In like manner the coils which have their inlets connected to the header H have their outlets connected tothe header P. S arethus connected t'o the inlet-headers H' H at opposite sides of the stillalternately. This enables meto place the superposed coils much `dieser together than would be possible if the adjacent coils had to have their stuing-boxes adjacent to each other. By this means I am enabled to crowd into the liquor-spacejof the P' P','leading to a common outlet Q. These j The successive superposed coils horizontal cylinder a suicient number of coils to.give the extended heating-surface're- 'quired when using exhaust or low-tension steam in proportion -to the normal quantity ol liq'uor covering these coils.

The construction of the coils in horizontal serpentine form is not only convenient for manufacture, but gives au extended heatingsurface, and in addition the construction of independent' superposed coils has this further advantage that in case the level of liqnor in the retort descends below the level of the top coil of pipe, for instance, as shown by the gage, such top coil can be cnt ont ofv l purposes, the combination of the generatingchamber of the still and steam-coils therein, with two connected headers at the inlet end and two' connected headers at the outlet end, the headers at the inlet end having valves to control the admission ofV steam to the dileront coils and means for supplying steam from dierent sources to the inlet-headers.

2. In anl ammonia still for refrigerating purposes, the combination of the generatingchamber of the still with steam-coils in horizontal serpentine layers, these successive layers having their inlets at opposite sides .of the still alternately and connections for the ad mission of steam to the said coils.

-3. In an 'ammonia -still for refrigerating purposes, the combination of `the horizontal still and steam-coils in horizontal serpentine 4. In an ammonia-still foxl refrigerating purposes, the combination of the horizontal cylindrical still with steam-coils in independent sets in the liquor-space in saidcylinder, and both alive-stea'm-supply pipe and an exhaust-steam-supply pipe and valves controlling admission therefrom to the seyeralindef pendent coils whereby ,the relation of,the .qnantity'of heating-,surface to the normalbody of liquor in which thencoilsare submerged may be varied accordingto the steam used. i a y In testimony whereofV I have signed my name to this specification in the presence of two subscribing witnesses.

Y NATHAN W..CONDICT. Witnesses:

HUBERT HowsoN,v F. WARREN WRIGHT.

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