US1614387A - Apparatus for the transmission of heat and cold - Google Patents

Description

I 1 614387 Jan. 11 1927. PEREDA E TRANSMISSIFON OF HEAT AND COLD APPARATUS FOR TH Filed Dec. 10 1925 C. PerecZcL luveruffOR Patented Jan, 11, 1927.

UNITED STATES PATENT OFFICE. A

OELEDONIO VICENTE PEREDA, OF BUENOS AIR ES ARGENTINA.

APPARATUS FOR THE TRANSMISSION OF HEAT AND COLD.

Application filed December 10, 1925, Serial No. 74,610, and in Germany May 30, 1923.

This invention relates to heat exchanging devices of the type in which heat is transferred through the medium of movable solid bodies such as metal balls.

The object of the invention is to more elliciently utilize the heat, and the invention which is applicable to not only heating but cooling consists in causing the metal balls to be plunged directly into the liquid or solid substance to be heated or cooled, the heat exchange taking place by direct contact within stationary receptacles.

Reference should be had to the accompanying drawing, which forms a part of this specification, which shows a vertical sectional middle view representing one form of apparatus in which the invention may be carried into eft'ect as an apparatus for distilling liquids.

In this figure, 1 is a receptacle supplied with a funnel-shaped bottom within which enter by means of conduit-s 2 hot gases under their own pressure or by means of suction created by an artificial draught; 3 are screens adapted to retain any solid bodies that happen to pass along with such hot gases. The hot gas passes across the receptacle 1 in an upward direction and leaves it by the chimney 4 and delivers its heat to the balls 5 which are admitted to the receptacle 1 through the conduit 6 and traverse the receptacle 1 by gravity in adownward direction contrary to the direction of the gas current. The receptacle 1, which may be called the heat-absorbing receptacle, is supplied with a funnel-shaped bottom and with a discharge device by the operat on of which the balls are intermittently discharged in a regulated quantity. This discharge device consists of a piston 7 with a cavity 8 in its surface in connection with a piston rod 9 and with a cylinder 10. The piston does not only reciprocate within the cylinder 10 but can also rotate around its axis. For this purpose the piston carries on one side a threaded spindle 11 which engages a corresponding tapped nut arranged in the cover of the cylinder, so that during the axial displacement of the piston the same is obliged to effect at the same time a rotary motion around its axis. At each stroke the cavity 8 of the piston 7 is loaded with a quantity of balls which are discharged after the displacement of the piston in the re ceptacle 12. The receptacle 12 contains the liquid to be evaporated and in this receptacle same consists of a piston 7 with cavity 8,

piston rod 9 and cylinder 10; 11' is again a threaded spindle which fits in a tapped nut arranged in the cylinder cover in order to rotate the piston around its axis when displaced longitudinally. This latter discharge device is adapted to collect besides the means of conveyance also the heated liquid between them. The same is intermittently operated so that the material from the receptacle 12 is withdrawn intermittently in regulated quantities and introduced by its own weight within the receptacle 20. The receptacle 20 is adapted to receive not only the conveyance means but also the heated liquid or solid material conducted with it. This material discharged from the receptacle 12 into the receptacle 20 drops upon a shaking screen 15, by which the conveying balls are sepa rated from the liquid to which they have imparted their heat. The liquid passes away by means of the conduit 17 to wherever it is to be utilized or it may be re-conducted by suitable means to the receptacle 1 2 to receive further heating. The balls that have given up their heat are led away from the grid 15 by the chute 16 to the lower end of a bucket elevator 18 :which raises them to the upper end of a sloping conduit 6, down which they pass and are re-admitted to the receptacle 1 to be again heated.

The conveyor balls can be made of any suitable material, but they are preferably made from metal; there may also be employed hollow metal balls filled with water. In this case care must be taken that the temperature of the water within the balls does not surpass 100 degrees C. 19 is a feed opening on the receptacle 12 serving for the introduction of solid material within the receptacle 12. In this case the material will be conveniently fed by its own weight from a hopper supplied with an automatic feed re ulator.

aving now particularly described and ascertained the nature of my said invention 10.,heat conducting means and in what manner the same is to be" performed, I declare that what I claim is A heat exchange; device comprising in combination, a heating chamber adapted to be interposed in a heating system and pro- Yided with a frusto-conical bottom having a central outlet, another similarly shaped liquid containing chamber in communication with the heating chamber, direct contact including a plurality of metal balls, receiving means s1tuated beneath the liquid containing chamber and in communication therewith, means interposed between the chambers and between the liquid containing chamber and the receiving means for controlling the transfer of a predetermined amount of balls from chamber to chamber and from said liquid containing chamber to said receiving means, means in communication with the receivin means for controlling the passage of liqui therefrom, screening means for the balls, and means for conveying the balls from the receiving means to the heating chamber so as to effect a continuous operaton.

In testimony whereof I have signed my name to this specification.

GELEDONIO VICENTE PEREDA.

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