USRE10261E - stockman - Google Patents

Description

G. w. STOGKMAN, Assignor, by mesne assignments, of part, interest to S. STEPHENS, G. A, F. A, dz M. A MAUS. VAPOR 0R GAS ABSORBER FOB. AMMONIA RE-FRIGERATING APPARATUS.

Reissued Dec. 19, .882.

H 6101mm i U TED "STATES: PATENT GEORGE W. STOGKMAN, or innrAsAroms',1sDiANA,'AS 1onoe, BY MES E AS IGNMENTS, OF r- RT INTEREST rro SAMUEL SrEPnENs, o. LB RT MAUS, FR N MAUS, Ann .MATVHIAS A. M S, ALL or SAME PL oE;

vAPoR oR'oAsABs'onstR ron AMMONIA RIEFRIGEQRATING PPARATUS.

SPECIFICATION forming part at Reissued tters PatentNo. 1o,2o1,aeteq 1)ee mi r 19, 1882.

Original so. 245,325, dated u us 9. 1ss1. Application for roissne insea -n 15,1882. Patented in 'irn isna June it, am;-

No. 2,587; in France Angust'BO, 1881, No. 143,401; and in Germany March 15, 1882, No. 17,267

To all whom it may concern Be it known that. I, GEORGE W. STOCK- MAN, of Indianapolis, lndiana, have invented i of a weak liquid cooler and the expanded vapor from a refrigerator.

an improvement in Absorbers for'Ammonia Refrigerators, of which the following is a description. I A

My object is to effect acontinuous circulation of the ammonia in its vapory and liquid conditions by employingthe weak or diluted liquid ammonia as an absorbing medium after it has been reduced in temperaturmby the use In the drawings Figure 1 represents a vertical sectional view of my improved absorber and its connections with a'retort, a vapor-condenser, a cooler, a refrigerator, and a pump.

Fig. 2 is a top view of the refrigeraton' Similar letters represent like parts.

A represents a retort or evaporator with heater B. G is a vapor-condenser. Dis a cool-er for weak or diluted liquor, and E is a refrigerator, all of the ordinary kind.

F represents the shellot' the absorber, which is surrounded by the water-jacket G.

H is 'the purge-tank, and I is a. force-pump. The heater B is provided with a steam-pipe, J, near its top; and pipe Kat its base, for carrying ofl' condensed steam. The vapor-pipe L leads from the top of the retort A to the coudenser G. This pipe is provided witha valve, 1, near the retort, and forms the condensing-coil M in the condenserU and the liquid-ammonia pipe V, This latter pipe is provided .with. a valve, 6, and pressure-gage g, and terminates in the upper'end ot the distributer O;

P P P P. represent several independent coils of pipe in the refrigerator-box E, one end of each coil starting from the distributer 0, with valves 3 and discharging at the other end intothe collector Q. This collector Q-is provided atits basewith a downward-projecting pipe, R, for the vapor to pass through into the ab sorber-coil S. The vapor-pipe R is provided with a valve, 7, and a pressure-gage, g.

N is apipe leading 'fromthe base at the retort A into thecooler D, forming the coolercoil U and'discharging into'the absorber F through the cold-liquor pipe T and the sprinkler W, This pipe, is also providedwith a I is provided with a cockflfi, for opening "and closing the pipe. e. is a petcock for discharging the; contents of the tank.

The absorber F is provided with apressuregage, 9 above, and a glass gage, c, at the side, lor showing the height of the liquor in the-ab-- sorbet.

The force-pump l has an inlet-pipe, 'i, which leads fromthe interior o't'the absorber through the water-jacket G to the pump, with a valve,

5, between them. The discharge-pipe t" leads fromthe pump to the retort, with two ,checkvalves, f'f, between thevalves 2 and 4, as V .sho'wn. 735

,The operation of my improved absorberwith' the other apparatus is as follows, tor-wit: The retort A is filled about two-thirds full of aquaammonia. The'absober F is half filled with the same liquid. The retort is 'madestrong- 8o enough to stand a high pressure, and steam being introducedthrough the pipe'J into the heater 3 the ammonia'in the retort is evaporated and passes out through pipe L into the coilMof condenser U, (the coil being immersed in coldwater fed by branch pipe Y,) and the. ammonia then liquefies, being under pressure. If the valve 6 be opened, the pressure being relieved the ammonia will begin to vaporize. and, passing out through the pipeV, fills the distributor U and'the coils P of the-refrigerator E, and, absorbing heat, reduces the sur-v 1 rouudingtemperatureinthe refrigerator. The 1 gas then escapes into the collector Q, passesdown through pipe B into the absorber-coils, 9 5

andjs discharged into theliquor in the vapor passing through this absorber-coil cools it as it'passes downward,and, uniting with the liquor close to the suction-pipe, is picked up by the pump before it can heat the liquor in the absorber, (as iteparts with the heat it had ab .sorbed very rapidlyfwhen it unites withthe" liquid in the absorber,) and is carried away to the retort, the flow of the liquid being regulated by the stop-valve 5. By this peculiar arran ge'mentot' passing the vapor through the coil S the absorber can be kept cool enough by the action of the ammonia vapor alone, as

- it is carried out ofthe absorber before it parts the bottom of the retort through the pipe N,

coil U, and pipe T to and through thesprinkler W into the absorber upon the coil S, and the quantity may be regulated by the valve- 3.

'Thecooler D. is supplied with water, as before described, from the condenser!) by means ofthe; pipe Z. Thiswater, haying already 7 been used in the condensation of the vapor- 3 to-the absorption of the expanded vapor as it ized ammonia, is here further utilized to cool the weak liquor as it passes through the coils U, the pipe T, and sprinkler Y into the absorber, r'edncingit to a temperature favorable is discharged into the liquid in the absorber.

vThe branch m of the cold-water pipe X discharges its water on the top plate of the abdown its'sides into the water-jacket G, fromsorber 1", helping to cool it, and the water runs which it escapes by the overflow-pipe d;

escape from the tank.

In order to have full control in regulating the ,workigigof the apparatus, a pressure-gage, 4o

g,'is conveniently placed onthe retort A. Also, a gage, g, is placed on the pipe V, near the regulating stop-valve 6. The gage g is 'attached to the vap'or-pipe R, and the gage g is,

attached to the top of the absorberF.

The purge-pipe. b andtank H are for the purpose of purging the apparatus of air. The

' pipe b conducts the air to near the bottom of the tank H, which is partly filled with water, and which by aflinity absorbs any ammonia.

that may escape through the pipe '1) into the air. The pe'tcocke is used to allow theair to arethat prior to my invention icemaking apparatus have been 'used in various I refrigerators have been. used in these; but in none of them, I believe, has the expanded vapor been used to cool the liquor in the ab-- sorber by passing it through any chamber or coil, and I regard my method as an improve ment upon the known methods of cooling the liquor in-the absorber.-

It isobvious that, instead of the coils, a y

chamber might be used in connection with the absorber; but I prefer the coil, as shown What I claim, and desire to secure by Letters Patent,'is as-follows: 1. In a vapor-absorber for ammonia refrigerating apparatus, the absorber consisting ot'. .the metallic air and watertight case F,.'sur- .sorber near the suction-pipe i. The ammonia I. forms, and thatretorts,condensers,coolers, and 5 rounded with the water-jacket G, andJprovidcil with the coil S, with suitable glass and press-j are gages, the sprinkler W,.the purge pipe and cock ,'and suction-pipe for a pump,s ubstantinlly as shown and |lescribc(l. Y. 2. The combination of'the absorber F, the

coil S, sprinkler W, pipeR, with its valve and pressure-gage, and the collector Q of the refrigerator, snbstantiallyas described.

3. In combination with the-absorber F, the coil ,8, and sprinkler W,*thepipeT, cooler D, with coil U, pipe N, stop-valverB, and retort A. as and for the purpose specified.

4. -In combination with the absorber- F, coil S, and sprinkler W, the purge-pipe withstopvalve, and the tank with its discharge-cock, substantially as described.-

, 5. In a vapor-absorber for ammonia refrig-v erators, the sprinkler W,'locat'ed over the coil S, and the lower endof the coil discharging the gas in close'proximity to the suction-pipe i, as and for the purpose specified.

6. The absorber F, with watenjacket'G, in combination with the cold-water pipe m, substantially as described. w d

7. In anammonia refrigerator, an absorbingchatnber so constructed and arranged that the weak liquor which takes up the expanded gas by uniting with it shall be cooled by the er.-

panded vapor itself in its passage through any suitable chamber or coil. 1

In witness whereof I have hereunto set my hand this 7th day of April, 1852.

I U P .Jsoons, ,SAMUEL STEPHENS.

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