US1717457A - Condenser plant for locomotives - Google Patents

Description

Jqne 18, 1929. F. LJUNGSTRM ET AL 1,717,457

CONDENSER PLANT F'OR LOCOMOTIVES Filed Aug. 17. 1922 07 775? COOLER,

Patented June 18, 1929.

UNITEDSTATES PATENT O F -(J nnnnnn: mnnesrno u, or LInINGO-BREVIK, AND ALF LYsnoLM, or 's'rooKHoLM. swiinnn, ASSIGNOBS 'ro AKTIEBOLAGET LJUNesrRoMs ANGTURBIN, or STOCK;

HOLIVI, swnnn v, A CORPORATION.

I CONDENSER PLANT FOR LOCOMOTIVES.

Application filed August 17, 1922, Serial No. 582,561, and inSweden MarchlG, 1922.

Condenser plants for locomotives are known in which the exhaust steam is deprived of its heat directly'or indirectly by the aid of the surrounding air. Thus for instance it has been suggested to conduct the exhaust steam from the locomotive and, if desired also from the auxiliaries of a locomotive into an air-cooled condenser, forinstance connected with an accumulating liquid receptacle, the whole condenser plant being under vacuum and the steam passing through ele ments placed side by side, whilst air is forced about said elements either by means of fans or on account of the speed of thelocomotive. It has also been suggested to discharge the exhaust steam of the locomotive into a water cooled surface condenser, the cooling water being conducted to acooling stack situated on the locomotive, in which the water is cooled by air forced by the speed of the train through the water sprinkling down. Such condenser plants have several defects and besides they do not afford in many cases the desired result owing to leaks and excessive consumption of water. Furthermore it has proved difficult, particularly in case of recooling devices connected with cooling stacks, to force a sufficient quantity of air through the condenser and the current of air forced through the water being of considerable force has therefore blown away much water.

In condenser plants one has always sought not only to attain saving of fuel but also saving of water, so as not to be compelled to carry large reserve receptacles for water or to stop too freipiently on the line for taking water. Besides it is very desirable to obtain suitable water in order to prevent formation of boiler-scale, which will not be possible if a new supply of water must be taken at stations having bad water which will form boiler-scale.

This invention relates to a condenser plant of a type in which a quantity of water is circulated. without necessitating the addition of water and in which the exhaust steam of the locomotive and, if desired, also of auxiliary apparatus is condensed in'one or more watercooled condensers. The invention consists chiefly in that the cooling water with or without condensate is reeooled in a recooling device cooled by air which is forced for ward by means of fans.

The accompanying drawings illustrate some embodiments of the invention. Fig. 1 shows a locomotive provided with a con-.

denser plant constructed according to the in-I 1 vention and Fig. 2 is a diagrammatic crosssection through the condenser. T o

Referring to Figs; 1 and 2 this embodiment is particularly applicable to locomotives pro-, vided with piston machinery. 1 designates the carriage supporting the steam boiler 2 of the locomotive, the drivers cab 3, the piston machinery 4 and thecondenser 5 V The cool ing water is supplied to the water cooled con denser 5 through the pipe 7 and is discharged through the pipe 8 in the direction indicated by the arrows. The cooling water is conducted through the pipes .7 and 8 to and from a separate carriage 9 coupled to the locomotive and supporting a recooling device. The

two carriages being movable in relation to each other, said pipes are provided with articulated couplings 10 and 11. cooling water pipes,-for instance 8,is connected with a pump 12 effecting circulation and pumping upthe water to a distributing pipe 13 extending along the recooling device. From this pipe the water, While beingcooled, flows down to both sides through. the elements 14 and 15 shown in Fig. 2to the collecting pipes 16 and 1?, from which it flows to the receptaclelB situated beneath the cooling device. The cooling air is forced upward by the fans 19 which in the embodiment shown are located beneath the cooling elements 14, and 15 of the recooling device but above the liquid receptacle 18. As shown, the fans are mounted on the receptacle 18; they may however be arranged in other mannor. The fan or fans which may be of any number are actuated by a common sha t 20 connected with a turbo-aggregate 21 provided with a toothed gearing .butmay also be driven in other manner. The turbine 21 is provided with a separate condenser consisting in the present ca'seof a surface-condenser 22 supplied with cooling waterdirectly from the cooling elements. To cause the cooling water supplied to the condenser 22 to pass first the cooling elements, the distributing pipe 13 is divided by means of a partition 14. so thatthe water will first flow downwards through one ormore cooling elements 23 to the left of the partition wall to the collecting pipe 16 (17) which has a partition wall to the One of said I left of these elements and hence upwards larly in case of large locomotives to locate the locomotive-aggregate on two carriages, each carriage therebynot being too lon which would make the passage of the locomotive through curves or turntables dilicult.

Modifications of this plant may be imagined, Thus water may for instance pass from th'e'puinp 12 through the condenser and the cooling elements in other manner, and the condenserf) which in the present enibodim'ent is constructed as a surface condenser of known type, may be of any other a kind, as for instance an ejector condenser, 7 a wet air-pump or any other type of mixing condenser, in which case the condensate is entrained through the conduit 8 and the re-' cooling device. The latter maybe influenced by any pressure, particularly'incase of only cooling water passing through the same; atmospheric'pressure is however most suitable,

since in such case leaks arising for instance in the cooiingelements will not affect. the capacity of the condenser. The embodiment shown is not, of course, confined to locomotives of piston type, since said machinery may for instance consist of a steam turbine with or without toothed gearing.

, What we claim as new and desire to secure by Letters Patent of the United States is 1. In a condenser plant for locomotives and the like, a condenser, means for conducting exhaust steam to the condenser, a fluid,

container, means for passing fluid from said container directly through said 7 condenser,

to condense the exhaust steam therein, and'f for returning the heated, fluid to said container,c'ooling apparatus and means for conducting fluid from said container directly to said cooling apparatus to be cooled and re-' turning the cooled fluid directly to said container.

2. In a condenser plant for locomotives and the like, a condenser, a fluid container,

cooling apparatus, a fan for blowing cooling air through said cooling apparatus, means for circulating cooling fluid troin said container directly through said condenser, and

means for circulating the fluid from said container directly through said cooling'apparatus.

3. In a condenser plant for locomotives and the like,a condenser,- a fluid container and a cooling apparatus, and means to circulate the fluid in said container in parallel through the condenser and the cooling ap- 'paratus. v

4. In a condenser plant for locomotives and the like, a condenser positioned on the engine section, a fluid container and a cooling apparatus positioned on a trailer, and means to circulate the fluid in said container in parallel through the condenser and the cooling apparatus.

In witness whereof we have hereunto set our hands.

FREDRIK LJUNGs'rnoM. ALF LYSHOLM.

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