PROCESS FOR THE REFRIGERATION OF LIQUIDS AND/OR GASES

Abstract: Process where in a central tube (1) manufactured of high thermal conductivity materials a liquid or gas is made to pass at low temperature thus refrigerating other tubes (2) around its periphery also made of high conductivity materials which are in contact with the central tube. The system may be joined and insulated by an external tube (4) of insulating material and which forms a cold chamber (3) among the internal tube (1) and the peripherals (2) which assists the heat exchange. The number and the diameter of the peripheral tubes (2) for heat exchange is a function of the desired capacity and of the number of liquids and/or gases that it is desired to refrigerate at the same time. In order to further increase the efficiency of the system, the peripheral tubes (2) may be wound around the central tube (1), thereby increasing the total difference of the length between the tubes and the performance of the system. The system thus conceived may be maintained in a straight line or wound, permitting easy installation, low cost and manufacturing facility.

Description: D Ξ S I ? PROCESS FOR THE REFRIGERATION OF LIQUIDS AND/OR GASES The present invention relates to a process for the refrig- eration of liquids and/or gases, utilising permanent ele¬ ments in one sole group. The process comprises the utilization of a cluster of tubes made of high thermal cor±ductibility materials, where in the central tube a gas or liquid is made to pass at low tenrper- ature and in the tubes of its periphery the gases or liquids it is desired to refrigerate. The tubes ma ** - be maintained in contact by an external joining tu e of plastic or rubber, which, besides effecting pressure to join the tubes to¬ gether, helps to insulate the group, and creates a gaseous refrigerated atmosphere, which acts as an additional area for heat exchange in the peripheries! tubes. Considering that once there is sufficient power of refrigeration in the internal tube the heat exchange will be greater however suc grsater is the ' total difference of lengths between the in- tgrnal .tube and the external tubes, the external tubes may be wound roiin having ' the internal tube as axis, thus gain¬ ing up to 2Cv of length in relationship tc the linear plac¬ ing of the tubes. The capacity of the system shall be pre¬ set and is dependent of i'Vs total length, as well as the difference in diametre between the internal refrigeration tube and the external refrigerated tubes, it being that how¬ ever smaller (in diametre) are the external tubes in rela¬ tionship to the internal tube, the greater shall be the heat exchange. The process under consideration is extremely safe since there are always two tubular -vails separating tlie refrig¬ erating li uid and/or gas of the liquids and/or gases to be refrigerated, enabling yet the refrigeration of as many liquids and/or gases as are the number of the external re- frigerated .Vbes or only one li uid or gas utilizing appro¬ priate connections to join the whole refrigerated tube net¬ work to the liquid and/or gas tubing in question. The tube cluster thus obtained is of easy thermal insula¬ tion and may be maintained stretched as well as curved for easy installation --"l en, re i ed by the project, hs obtain¬ ing an easily anufactured machine, with low cost, maximum safety, high performance in relationship to the present re¬ frigeration coils. In the drawings which accompany and form part of the pres¬ ent description we have an ample view of the process pre¬ sented and its components. Figure 1 shows a transversal section wlierein is observed the central refrigeration tube (1), the peripherical heat exchanger tubes (2), the auxiliary gas atmosphere for heat exchanging (3), and the external joining and insulating tube (4). Figure 2 shows a transversal section of the system, wherein the central refrigeration tube (1), is surrounded by a greater nuπher of peripherical heat exchanger tubes of smaller diametre (2), the auxiliary gas atmosphere for heat exchanging (3) and the external joining and insulating tube (4). Figure 3 shows the peripherical "heat exchanging tubes (2') wcuiid * around the internal refrigeration ' ube (1). Figure shows a general view of the group showing the in¬ ternal refrigeration tube (-1), the peripherical heat ex¬ changing tubes (2), linked to the multitubular connections (5), and the external joining and insulating tube (4).

Claims: (amended) ur3.cter__.zec: ov the utilization of a cluster cf heat e in tl e contrε.1 tube flow- a ro ri -er .--*. * - — lov: tsr ϊ.erature in the :eri ~ heri tubes, surrounding ccxpl-tely tne central low the licuids or c ses to be refri g erated. 2 - " -? * " C ~ 33 7 CE Z~ HZIEIG-ZEΛZIC:; CΞ II " 1 C-ASZ5 (amended) tne -. mL OTm. joining and insulating tube, which helps maintain the tub in contact, and creates a cold char-ber among all the tub which a-ssists the heat exchange. (amended) 3 - "PEOCΞSS ?CE C Ξ KIZZIIS RAIIC-T OP LrøΣDS I C_t GASZS characterized by τ .-*e- _r_-__-;it ut v _i_n.g t -f-h ' i-ea r ■ —e&f ■ ?r • nisg -βerwatriio .-.n * >- cf one s 5o D li uid or gas or even so ma y liquids and/cr gases as is t number of heat e:-:changer external tubes. (amended) - "2ECCΞ.3S EOE ΞΞ EZZRIG-E AIICi: CJ II^ ΣDS IZ.'CE ^iSΞ3 characterized by permitting that, " by winding the extern tubes around the central tube, their lengths are furth 20 modified, thus increasing the heat exchange. (amended) 5 - "rRCCΞSS JCS Ε.13 EI7EIG-*Ξ*Hλ.IC:: C_? Ii ϋI__)Ξ' AIZ/CR SA3Z3 * characterized by perr-itting the setting for the intended c pacity by raryir-g the number and diametre of The extern heat exchanger tubes and/or the length of the whole clust 25 in accordance with project details. r- .i * ** τ*_-.' (new) characterized ' the fact that, nce refrigerating two more liquids and/or gases but serving then at different m ments, the thermal energy accumulated in the tubes that a 30 excnange, ;_ϊiύ-_.- ;ne ezz-cisncy of tne svs en. Λ. Wi?o

Inventors: ABRAMO CARLOS A
Applicants: ABRAMO CARLOS A
Application year: 1981
Main classification: F28D7
IPC codes: F28D7