US1566528A - Heat interchanger - Google Patents

Description

G. EGLOFF HEAT INTERCHANGER Dec. 22 1925.

Fil ed Jan. 6. 1921 PUMP ySZVZg/ofi FLU/D W FoR v- CO0L1/vq LIQUID Patented u e 22, 1925.

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Application filed January 6, 1921. Serial No. 485,321. I

This invention relates to improvements in' heat intercl1angers,and is adapted to be used either as a preheater, condenser or 'deph1egmator or serve at the same time both as a condenser and preheater.

The object of the invention is to secure the highest efliciency in heat interchangers by causing the raw oil to travel erpendicular to the flow of hot vapors or ot oil.. The following covers a description of the heat interchanger, as shown in the drawing, in

which the single figure is a view, partly in side elevation and partly in vertical section, of my improved heat interchanger.

Referring in detail to the drawing, 1 designates a cylindrical shell having two compartments 2 and 3, one at each end. 4 and 5 re resent tube plates in which are expan ed tubes 6. At right angles to tubes 6 are supported partitions 7' forming compartments 7 through which the cooling liquid travels from header 8 by means of pipe connections 9 connecting header 8 and compertinent 7 to one another. .10 represents pipe connections from compartment 7, carrying the cooling liquid by means of header 11 through ipe 12 controlled by valve 13 to a system. not shown).

Pump 14 forces the cooling liquid controlled by valve 15, to the compartments 7 which are perpendicular to pipes '6. The hot vapors or hot oil from the still (not shown? pass by means of pipe 16 controlled 'by va ve 17 1nto compartment 3 and up through pipes 6 to compartment 2 and out b means of pipe 18 to a system (not slibwn). The heat interchanger may be utilized asv a de hlegmating apparatus, such as is used in t e cracking o hydrocarbon oils and when employed for this purpose, the vapors from t up through a series of pipes as shown in the drawing while perpendicular to the flow of heated vapors to the cracking still a cool e cracking system pass ing liquid such as raw oil',-water or the like i I flows around the tubes at right angles to the direction. of flow of the heated vapors, a veryhigh heat interchange elficiency, -is obtained. I particularly stress the fact that the cooling liquid is always travelling at rifght angles or perpendicular to the flow o the hot vapors and a much. smaller amount ofcooling fluid is necessary over any other heat interchanger, of WhlCh I am aware.

The heat interchange as described is particularly eflicient when heated oil residuums from the atmospheric distillation of petroleum or other hydrocarbons are to be cooled. When using the heat interchanger for hot oil, water may be used as the cooling agent and we have found that this system is more eflicient than any system thus far devised. In using this heat interchanger practically we have utilized as coolin liquid a hydrocarbon oil such as gas oil and found that we could bring the temperature of the cooling liquid to upwards of 400 degrees F., I

from the hot. residuum oil leaving the cracking system, and this hot gas oil was utilized directly in the cracking system as the raw oil to be converted into gasoline.

I do not limit myself in this invention to' its use in the petroleum art. either as ajde- 'phlegmating apparatus for the fractionation of hydrocarbon vapors oras a heat interchanger for the cooling of heated oil but it may be efliciently used as a heat interchan r where there is a.difi'erent temperature i:- tween the cooling material and the heated material.

I claim as my invention:

1. In a heat interchanger for treating petroleum oils and vapors, comprising a main body portion, a plurality of vertically arranged tubes positioned within the main body portion, means for passing oil through said tubes, saidmain body. portion being provided with a plurality of transversely extending partition members forming a multiplicity of closed fluid receiving chambers, and means for individually passing oil through each of said chambers trans.

versely to the flow of oil through said vertically arranged tubes.

2. In a heat interchanger for treating petroleum oils and vapors, comprising a said main body portion, tubes connecting l0 main body portion, a plurahty of vertically said headers to said chambers, and means arranged tubes positioned within'said main for forcing oil of a relatively low temperbody portion, means for; passing hot oils or ature through one of said headers and its gases through said tubes, said main body connecting tubes through the said chambers' portion being provided with a plurality of to cool the said oils and vapors in the ver- 15 transversely extending members forming a tically arran ed tubes, and means for drawmultiplicity of fluid receiving chambers, a r ing ofi the 011 from the adjacent header. vertically arranged header on each side of GUSTAV EGLOFF.

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