US1209578A - Condensing apparatus. - Google Patents

Description

H. C. HEATON.. CONDENSING APPARATUS. APPLICATION man MAR. 16. 1915.

Patented Dec.19,1916.

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H. C. HEATON.

CONDENS ING APPARATUS. APPLICATION FILED MAR. I6. 1915.

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HERMAN o. HE roIv, OFQBERWYN, ILLINOIS.

CONDENSING APPARATUS.

Specification of Letters Patent.

Patented Dec. 19, 1916..

Application filed March 16, 1915. Serial No. 14,642.

To all whom it may concern:

Be it known that I, HERMAN C. HEA'ION, a citizen of the United States, residing at Berwymin the county of Cook and State of Illinois, have invented an Improvement in Condensing Apparatus, of which the following is a specification.

My present invention relates to condensing apparatus, and while applicable to all condenser systems is particularly adapted to a system in which surface condensers are employed. p

Heretofore, and until comparatively recently, it has been the custom, incondenser practice, to employ, together with the condenser, a reciprocating air pump or a pump having a piston and suitable suction and discharge valves. At the present time, however, there is a tendency to employ hydraulic air pumps in condensing apparatus, in which type of these pumps, as is now generally known, water is admitted to a rotary impeller, is hurled therefrom through an appreciable space into passageways in a diffuser, in order to entrap air or other vapors from the condenser or other vessel in which the vacuum is to be created and maintained,

I the space between the impeller and difluser being connected to the interior of the condenser or other vessel. It will be understood, however, that any type of hydraulic air pump may be used in carrying out my invention.

In the use of hydraulic air pumps, it is necessary to employ clean cool water in order to obtain the best results. In some places, as is appreciated, clean water is plentiful and cheap, and may be used and passed draulic air pump is employed in connection to waste, whereas in other places it is necessary, for economy, to utilize the same water over and over again, in the use of this type of pumps. In such instances, as will be appreciated, the temperature of the water used in the pump is increased, oftentimes to such an extent as to impair the efliciency of the apparatus.

Now, the object of my invention is to provide in a condensingsystem in which a hywith 'a condenser a suitable cooler; for maintaining the waterused in the pump at a sufliciently low temperature to insure the efficient operation of the pump. In so doing, I preferably employ a cooling apparatus built similar to the well-known surface con densers and placed in a line of piping for circulating water to the condenser, the circulating water preferably passing around the tubes in the cooler, and the water for the pump passing through these tubes, although, as will be understood the cooler may be so connected that the circulating water passes through the tubes and the water from the pump passes around the same, as will be hereinafter more particularly described.

In the drawing, Figure 1 is a diagrammatic elevation and partial cross section of a condensing apparatus, in which my present invention is embodied. Fig. 2 is a similar view taken at right angles to that shown in Fig. 1. Fig. 3 is an enlarged cross section through the water box at one end of thecooler, and Fig. 1 is a VIEW similar to Fig. 1, showing the cooler in the circulating water discharge pipe instead of in the circulating water intake pipe, as shown in Fig. 1.

Referring particularly to the drawing, in carrying out my present invention, I employ a surface condenser 10. The shell of the condenser is indicated at 11, and, as customary, this is suitably provided with a steam inlet connection 12 and water boxes at the respective ends, having suitable connections for the circulating water which is passed through the banks of tubes located within the shell 11 to condense the steam which comes in contact with the outer surface of these tubes.

As shown in Figs. 1 and 2, 13 indicates the water box at one end of the condenser. This, as is customary, in suitable positions, is provided with a circulating water inlet nozzle 14. and acirculating water outlet nozzle 15, the pipe lines leading to and from. these nozzles being indicated at 16 and 17, respectively. I also employ a cooler 18. This, as hereinbefore stated, is constructed similarly to the ordinary surface condenser, and co1n- .ments by the partition walls 26 and 27.

Connected to the water box is a cover 28. The water box 25 is also provided with an inlet nozzle 29 and an outlet nozzle 30. As-

shown, these nozzles are in diametrically opposite positions, although, as will be understood, the nozzles may be otherwise arranged, depending upon the pipe lines which are to be connected thereto.

At the opposite end of the cooler shell, a water box 31 is secured to the tube plate, and interiorly this water box is provided with a partition wall 32-. It will therefore be apparent that in the arrangement described, assuming the nozzle 29 to be the inlet nozzle, the water conveyed to the cooler through this nozzle will first pass through the bank of tubes 21 to the space in the water box 31, above the partition wall 32, then through the bank of tubes 22 to the space in the water box 25 between the partition Walls 26 and 27, then through the bank of tubes 23 to the space within the water box 31 below the partition walls therein, and finally through the bank or tubes 24 to the space in the water box beneath the partition wall 27, and thence to the outlet nozzle 30. The slrell on": the cooler is also provided with an inletconne'ct-ion 33 and an outlet connection 25 34, making provision for communication with the interior of the shell and the extrarior or outer surface of the tubes contained therein.

As is the general custom, the condenser is placed in the basement or other space below the engine room, and as shown in Figs. 1 and 2, I have indicated the floor line of the engine room at 35, and shown as resting thereon a discharge tank 36. Upon the dis- 35 charge tank, as illustrated, is mounted a hydraulic air or vacuum pump 37. The air inlet to the pump is indicated at 38, and the hurling water suction or inlet at 39. As illustrated, 1 have also shown a motor 40,

mounted upon the discharge tank, for driving the air pump. The hurling water inlet of the air pump is connected to the outlet nozzle 30 of the cooler 'bya pipe line 41', and a suitable discharge in the base or other part ofthe discharge tank is connected to the in let nozzle 29 of the cooler by a pipe line 42, the pipe lines 41 and 4L2acting as barometric columns, irrespective of the distance between thepump and thecooler, or the pump and the condenser, so that there is little, it any, loss in elliciency due to so placing the parts of the apparatus. The discharge tank is provided with a suitable port 43, through which the air pump discharges the air and hurling water into the tank, and also with a suitable port or vent 44 to permit theair or other vapor to escape. As indicated in Figs. land 2, the cooler lSis located in the inlet for the circulating water for the condenser, whereas, in Fig. 4,

the cooler is located in the discharge line for the circulating water for the condenser, and as will be understood, in both instances the circulating water passes through the shell of .65 the cooler around the tubes therein, While the hlu;ling Water, utilized in the air pump, is passed through these tubes and cooled by the differences in temperature between the same and that of the circulating Water.

As herein shown and described, I have illustrated my invention as applied to a surface condenser system, in which the cooler is so constructed that the circulating water passes around the tubes, and the Water used in the pump passes through the tubes. It will be understood, however, that Without departing from the nature and spirit of my invention, the same may be applied to jet condensers, and irrespective of the type of condenser to which the invention is applied, the cooler may also be so constructed and connected in the apparatus that the circulating water will pass through the tubes of the cooler and the water used in the pump around the same.

It is to be further understood that the invention, as illustrated, is only shown diagrammatically, in so far as the location of the several parts of the apparatus is concerned, inasmuch as these may be located in any 99 suitable position, for example, an inverted siphon may be employed and the pump placed below the cooler instead of being placed "above the same, as il histrated, and the foregoing statement in regard to the location of the pump applies also to all the other parts of the apparatus.

1 claim as my invention.

1. A condensing apparatus comprising a condenser placed at a predetermined level, connections for -a circulating medium leading to and from the condenser, a hydraulic air pump at a predetermined and materially dillerent level, a tank into which said air pump discharges, a cooler located in the oi-r- 1 culating medium pipe connections of the condenser, and pipe connections forming substantially balanced columns between said tank and inlet'to the cooler and between the outletl romthe cooler and the suction ot "said air pump so that thea-i r pump may be located any distance above or below the "said condenser.

'2. A condensing apparatus comprising a condenser placed at a predetermined level, "circulating water pipes [leading to and from the condenser, a hydraulic air pump placed at a material distance above the condenser, a tank adjacent said air pump and into which it discharges, a cooler located in the circulating water "pipe connections to the condenser, and pipe connections forming substantially balanced columns, the one leading from the' tan-k tothe inletof said cooler and the other from the outlet of'the cooler to the "suction of said pump,

placed at a material distance'above the conbalanced columns, the one extendingbetween denser, a tank adjacent the air pump and the said tank and the inlet to the said cooler into which said pump discharges, a cooler in and the other extending from the outlet the circulating water pipe connection to the from the tank to the suction of said pump. 15 said condenser, the said cooler including a Signed by me this 22nd day of February, plurality of compartments around which the 1915.

circulating water passes and through which hurling water employed in the pump passes HERMAN HEATON so as to effectually lower the temperature of WVitnesses:

10 the hurling water by the circulating water, ADA CAssnLn HEA'roN,

and pipe connections forming substantially WM. GAssELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. 0.

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