US1919306A - Vacuum condensation system - Google Patents

Description

July 25, 1933. v. ROSENHAGEN I VACUUM CoNDENsATIoN SYSTEM Filed April 4, 1952 .-iV Vl'cor Rosen/myn:

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Patented July 25, i933 UNITED, STATES www VICTOR ROSENHAGEN, or BELLnvUE, KENTUCKY, AssIGivoR" 'ro 'THE BREESE BROTHERS COMPANY, OF, CINCINNAT, OHIO, A COVRPORATION-OF OHIO VACUUM ,CONDENSATION SYSTEM This invention relates to a vacuum condensation system especially applicable inl steam heating installations.`

An object of the invention is to provide such a system operable underplow steam pressure.

Another' object is to provide novel 4. valve means controlling operations of the vacuumk View of an installation of the invention, With` partsbroken away.. l v `f t Fig. 2 is a vertical cross 'sectional view of the thermostatic' control vmeans utilized in the present invention. A t 1 Fig. 3 is a vertical cross sectional view of a portion of the vacuum creating `means utilizedherein.

. Fig. 4 is an elevational View, partly in 'cross section and partly broken away, of the auto- -matic valve means for separately introducing liquid condensation and return air or vapor into the return depository. i

Fig. 5 is across sectional View taken on With reference to lthe drawingf A boiler or steam source is provided, from which steam under pressure is supplied through a suitable line 11 to the radiators of a heating system, one of the` radiatorsy valve 38 which preventssteam above atmos-` being indicated 'at 12.` i

Vacuum creating means are provided for drawing air and liquid condensation from the system. These means comprise a circulation tank 13 and a vacuum chamber 14.

The circulation tank 13 is maintained substantially half full of water as indicated at 15 for' supplying a centrifugal pump `16 positioned laterally of and in communication with the interior of tank 13. Pump 16 may be drivenby a suitable motor 17 vThe tank or condensation pump communicates by a pipe 18 with the interior of circulation tank 13 at the top thereof.` Between the lower endof pipe 18 and motor 17 is interposed vacuum creating mcansq19. `This means comprisesanejector or vnozzle 20 l(Fig. '3). proJecting into 'a vac- `uum chamber 2l and `directing i a forced stream of water into a restricted receiver 22,

vmay be provided.V `.Said line extends into the condensation chamber 14, ythrough the `top thereof, and terminates Iin an open "end: 24,l

disposed substantially-half way .down said chamber.4 iti-volume of-waterin chamber 14` has its lowestlevel ydisposed..immediately beneath the openy end24'of line 23said water serving as a seal throughvwhich all air,

drawn from tlie'hcating system through the intake pipe 2, must pass. In this way, the

f steam or vapor from the heating system be'- comes condensed, since theintake port 260 is disposed at the bottom'o chamber'll.-`

The return pipe 27=of the heating systemy communicates at its innerend withjthe enclosing chamber 28 of afloat valve 29; When suiiicient liquid condensation has been ltaken intofchamberf 28 fto" -loat the valve 29, the latter"l rises -fromitsfseat 'V30 (Fig.v 4) and admits the condensation into the pipe 31 which communicates as at 32 with intake pipe2'6. The intake pipe 26 isof such lengthk as to ef- `feet suHicient cooling of the `condensation for precluding return thereof to asteam state withinthe condensation chamber 14. When no liquid condensation is `present in `valve chamber 28, 4therfloaft 29 drops to" position upon its `seat`30,` Atv this Atimethe air passing through the heating system is drawn into the 'lower end of a tube 35. Before entering said tube, the induced air passes through a casing 37 (Fig. 2) surrounding a thermostatic pheric pressure `from entering the chamber 14 and which closeswhen the temperature'fof the f entering air exceeds 212 degrees but remains' partly open at a temperature' of about` 200` degrees.l f

logs)l tiljthe level 25 is restored,l saidv drawn Water passing through vacuum 'line'.2l3. to enter the vacuum chamber 21 Where it Joins withthe water` bein.

circulation tank 13.

forced through pipe 18' into the il r i e 10o As'heretofore explained, the liquid con- 1 sure is reduced to a different predetermined amount;

3. In a device of the class described the combination of a vacuum condensation chamber having a water seal, power actuated means for exhausting air and Water from said cha-mber, means for `connection with a return pipe of a low pressure heating system whereby condensation is accumulated for intermittent discharge into the condensation chamber below the water seal, other means including a therinostatic valve for normally exhausting air and low temperature vapor from the return pipe to said condensation chamber below said water seal and vacuum controlled switch and circuit means energizing and de-energizing the power means'at predetermined degrees of low and high evacuation of said vacuum condensation chamber whereby air may be Withdrawn from thesystem after the 'power means is deenergized.

4. Vacuum condensationvmeans for low pressure steam heat systems and comprising a condensation chamber having a water seal therein, vacuum creating means for drawing air and liquid condensation from the system through said water seal into said chamber, said means being' adapted to create a static vacuum above the Water seal in said chamber, means successively stoppingand starting sation and of induced air of greater than ay given temperature, means for discharging from the condensation chamber the excess of water above the volume constituting the water seal, and means cooling the liquid condensation before entry thereof-into the condensation chamber.

5. Vacuum condensation means for a steam heat system and comprising a tank, an over- How pipe therein, means for drawing air and liquid condensation from the system into the tank, and valve means associated with the tankand comprising an air vent normally permitting escape of indrawn air, a valve controlling communication of the vent with the tank, and a float having a lost motion connection with said valve and adapted, vupon rise of the liquid condensation inthe'tank above a selected level, to close the valve whereby the pressure of indrawn air effectsl scend wherebyxan effective evacuation of excess liquid condensation is attained.

6. The combination with a steam heatisyssationchamber, of means for effecting intertem or the like comprising a vacuum conden-` mittentV discharge of liquid condensation from the system into said chamber and comprising a valve chamber communicating with y the return pipe of the heat system and with` said condensation chamber, said valve cham-- ber having a valve seat in the bottomthereof and a ioat valve therein adapted normallyto remain positioned in said seat and to be displaced from said seat for permitting access' into the condensation chamber only upon accumulation in the valve chamber ofl a' given volume of liquid condensation.

7. The combination in asteam heat syst-em orthe like, ofa vacuum condensation chamber having an inlet port adjacent the bottom thereof and a water seal "in the chamber for said port, an inlet pipe communicating with i said chamber through said port and extending` above the level of said water seal, a return pipe in the system, a float valve mechanism communicating with the return pipe and with'the lower outer portion of said inlet pipe and precluding entry into the inlet n pipe of less than a given accumulated volume of liquid condensation, means associated with the inlet pipe for cooling condensation therein to preclude return thereof to a steam con dition within the condensation chamber, and

a thermostatic valve communicating with said return pipe and having tubular connection with the upper portion of the inlet pipe,`

said thermostatic valve being operative when the io'at valve is closed for admitting air-of y less than a' predetermined temperature into the inlet pipe and forexcluding therefrom air of greater than apredetermined temperature. l l

8. The combi-nation in a steam heat system or the like of a vacuum Lcondensationchamber having an inlet port adjacent the vbottom thereof and a water seal for the port in the c; chamber, an inlet pipe communicating with said port, areturnpipe in the system, afloat valve mechanism communicating with the return and inlet pipes and precluding entry `into the inlet pipe of less than asubstantial accumulation of condensation, said inlet pipe `being of sulicient length for cooling the, condensation before entry thereof into said chamber, and a thermostatic valve and casv ing communicating with the `return and inlet pipes and adapted Ato admit air of less than a predetermined Itemperature into the inlet pipe and to exclude therefrom air of y greater than a predetermined temperature.

VICTOR ROSENHAGEN.

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