US1425216A - Art of refrigeration - Google Patents

Description

-J. REBSAMEN.

ART OF REFRlGERATION.

APPLICATION FILED 050.29.1920.

- Pat ented. Aug. 8, 1922.

2 SHEETS-SHEET 1.

1. RE BSAMEN. ART OF REFRIGERATION.

APPLICATION FILED DEC.29, I920.

Patented Aug. 8, 1922.

2 SHEETS-SHEET 2- nitrite.

entrain JULIUS RLEBSAMEN, OF CHICAGO, ILLINOIS.

ART OF REFRIGERATION;

In the usual refrigeration process for the production, of ice, tanks of large size are required as containers for the brine by which the water to be frozen is cooled, the water being contained in relatively small cans for the production of can ice, or inv large cans of great length for the production of plate ice, these water containers beingimmersed in the brine tanks. The brine is,-inturn, cooled by a refrigerant passed through coils immersed in, it. By reason of their largesize these brine tanks are expensive inconstruction and mustbe of strength suflicient for. supporting the.

great, quantit of brine used. Likewise, where water is frozen by refrigerating coils immersed init, as in ice skatingrinks, the tanks utilized for thewater mustbe sufliciently deep for the reception of the cooling coils, thereby necessitating-theuse and cooling of relatively large quantities, of water and the construction of largeand deep tanks.

the present invention it is possible to utilize shallow tanks of water where large sheets are to be frozen or to dispenseentirely' with the use of brinetanksjwhere ice is to be produced in cans or plates. Furthermore, the low temperature of the atmosphere, may be utilized in the present operation to-effect or aid in effecting the freezing process. Further advantages of the present invention will be clearly indicated by the description thereof hereinafter given.

In accordance with the present invention the formation of ice is effected by directing against the water container jets or, sprays of a cold cooling liquid, such as brine and withdrawing. the cooling liquid, which may, if desired, be again cooled and reused. The spraying of the water container with the cooling liquid is continued until the water in the container has been completely frozen and converted into ice of the proper temperature.

Specification" of Letters Patent.' Patentqgd Aug, 8 11922,, Application and December 29, 1920. Serial nc. 433,763.

In the accompanying drawings I have illustrated an apparatus suitable for practicing my invention. In these drawings Figures land 2 illustrate respectively. the left and right portions of a sectional viewof a plant for carrying out the invention, and

Fig. 3 is a transverse sectional view on the line'33 of Fig. 1. 7

Referring more particularly to the draws ings, the numeral 10 indicates a building suitable for housing the apparatus for carrying out the process. In this building a relativelylarge chamber 11 is set or by partitions 12 and 13, preferably of heat insulatingmaterial, and is likewise lined with heat insulating materiahas at I l, 15 and lo. The bottom of this chamber is drained, preferably by inclining it from the ends to the center, where a transverse trough or drain 17 is provided. The chamber is supported in. any suitable manner, for example, on transverse joists 1.8. Y i

lnthe upper part of the chamber 11 the cans '19 are supported on spaced channeliron beams 20. Somewhat below the cans 19 and preferably between the transverse rows of the cans the transverse brine pipes 21 are arranged, these pipes being provided with spray nozzles 22; The arrangement of the brine pipes and'sprayfnozzles issuch that the sprays of brine from the nozzlesare distributed as uniformly as possible over the sides and botto nof the cans. The sprayed brine is withdrawn from the cans by the action of the force of gravity,fall-' ing down over the longitudinally arranged guides 23, which direct the brine into the trough-like distributors 26, each of "which is arranged over avertical refrigerating coil 27, in such manner that the brine is caused to flow over the coils in its descent. These coils, which may be, for example, the expansion coils of an ammonia compression refrigerating system, are supplied and discharged through headers 28 and 29 respectively.

The brine, which has descended in 'contact with the refrigerating coils, falls to the bottom of the chamber, where it'drains into the trough or drain 17, which is protected by a screen cover 30,. In this trough is a perforated pipe 31, which is connected to the intake of a pump 32. The. discharge of this pump is connected to the header 33, which supplies the spray pipes 21. The

pump and the connections therewith external- 1 to the insulated chamber. 5 maybe thenmally insulated in any esired manner.

At the end of the freezing chamber-plat and separated from it by partition 12 are we; rarezsed:i hesh s e d; 5/- enarated'by a'horizontal portion 36. These chambers are like chamber 11 completely enclosed by thermal insulating material.

AfiopeningBZ- isjp rovided" between the upper.

chamber. 843' and the upper-portion of the chamber 1 1, and an opening 38 provided w i hfaidwr 39 s pan a m h gp r i on 36f betweenlcliambrs '34 and 35. Fans 40 are locate d inithe chamber 35 which draw the airfrom within that compartment and discharge it through 41 into the reweri s. ,q hamberin. hi h h refrigerating coilsare provided. Openings 42fa1rri43" reprdvi agd from chambers 34 wa as: epa rs el. he. f he ei iiinsf h wl i i' he ppar tus is hou ed; Whichbpeningsare provided with removi-j b save s! an j re pe i y 'IEhe freezing chamber ll is covered byv a stop ma d preferably in transverse remq iw i ec s a e c ip j iin imoval; a top section afi'ords access" to they ro 1 a wi h, a ern s a 519? 11 pe t n u d 2 1? x rn mos: new fbriiitid he. as re fi l d. th iii ir feed he" c amber ein over d; ji b n i i i' h s pray Pipe in a' fi m dowjn the] sides of the cans, with new a heat i x f hl'wa er 0y 1 its sides and at its; bottom, The brine dlj s froinjthe cans up onthe guides 28 and c itethed tr bu n o h 6; hi l i ribut h ir); overfi th fl e feti e ls Th b iwi' fi led y he w le, 'in his t .d i P Q i id t QQ iQm. v0f thef hem sr draining the trough 17. From ,here the ed it i it drawn by, pwi r. 323m; eeag i sdgili a p ay..ag s f he n the he epe r it n, fi ebh mbet h n the external'atmosphere is "very "cold; for ini eeje il lii iei j l. P rmits. t eir 3 moval 'from the freezing chamber for fill j "not? were afllsedf e m ng lfine srray. j ipbeh es" 1 he. ane Ui d he". ration f, a ty he. inefl s.

nj yia fif f l llu in in a, f rthe edi (5ft i aaz q stance,.at 15 F. or below, it may be used to aid; the action ogthe refrigerant. in coils 27 or even to entirely supplant the use of the refrigerant in the following manner.

by the'cu rren-t; De n. The air then circulates aroundthecans, aiding in-cooling them,

having been saturated wi-th moisture by its contact with the brine and passes out through opening 37 into compartment 34+ and from there into'the open air. The circulation of thevbrineis the same as; before. J

Removal-and replacement of-the cans is efi'ected by means of a crane 47' which travels on" longitudinal; rails48. By this crane cans of ice areawi thdrawn from the freezing chamber 11 after-removal of the corresponding 'top'sectionf-46, taken to the thawing chamber 49' andqfrom there to the tilting platform-50, where the ice is discharged and the cansrefilled with water from the tank 51, The cans-are then returned by thev crane,

to the freezingchamber; 1

'Itisyreadily apparent that thepresentr invention may be utilized for; the freezing of;'-plateice or for'the, formation oian extended ice surface in a shallow water con-1 -ta-1ner,, as in, skating rinks, or may be -other,

wise utilized in refr igeratingoperations Although the present "invention vhas: been described and illustrated in connection with a specific :embodimentthereof, it isnot intended that the specific details ofapparatus or procedure ,iar'e tohe -regarded as limitar tions-uponthe scope of the invention, except as included"; in theaccompanying claims I claim:

,1 refrigerating apparatus, a liquid 7 container, means for sprayingai cooling liquid against the container, cooling; means below the container, means for collecting :the sprayed liquid and distributing it over, the cooling means, means for; returning 1 it after cooling I to i, the spraying means, and means for passinggair over the cooling'me'ans and circulating it about the container.

2. In refrigeiiating-apparatus, a chamber, liqluid i'zontai'n'e'rs-supported therein, coils be Low'th'e containers, 'means forspraying brine againstthe containers, means-forcor lectingthe sprayed brine anddistributing, it over the (coils, means for passing air over the ficoils' in contact with the brine during passage'over the coils, andmeans for col lecting"'the,j brine after passage over; the

' coils and 'returningit to thespraying means,

31 In refrigerating apparatus, a freezing compartment," the bottom' thereof being inclined to a drain, liquid containers supported in the upper part of said compartment, means for spraying brine against the containers, coils below the containers, guides between the containers and the coils for collecting the sprayed brine and distributing it over the coils, means for withdrawing the brine from the bottom drain and returning it to the spraying means, and means for forcing external air into the lower part of the compartment over said coils.

4. In refrigerating apparatus, a freezing compartment, containers supported in the upper part thereof, means for spraying brine against the containers, cooling coils in the lower part of the compartment, means for collecting the sprayed brine and distributing it over the coils, means for collecting the brine at the bottom of the compartment and returning it to the spraying means, communicating compartments adjacent the freezing compartment, one of said compartments communicating with the upper portion and the other with the lower portion of the freezing compartment, and means located in one of said compartments for withdrawing air from the upper portion of the freezing compartment and returning it to the lower portion thereof.

5. In refrigerating apparatus, a freezing compartment, containers supported in the upper part thereof, means for spraying brine against the containers, cooling coils in the lower part of the compartment, means for collecting the sprayed brine and distributing it over the coils, means for collecting the brine at the bottom of the compartment and returning it to the spraying means, communicating compartments adjacent the freezing compartment, one of said compartments communicating with the upper portion and the other with the lower portion of the freezing compartment, means for closing communication between said adjacent compartments, means for establishing communication between each of said compartments and the exterior, and a fan in the compartment communicating with the lower portion of the freezing compartment, whereby air may be circulated from the upper to the lower portion of the freezing compartment or external air may be introduced into the lower portion thereof, according to the arrangement of the communications of the adjacent compartments with each other and with the exterior.

I JULIUS RE'B SAMEN.

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