US875107A - Hot-water heating apparatus. - Google Patents

Description

No. 875,107. PATENTED DEG. 31, 1907. A. B. BECK.

HOT WATER HEATINGAPPARATUS.

APPLICATION FILED FEB.13, 1905.

2 SHEETS-SHEET 1.

PATENTBD DEG. 31', 1907.

A. B. BECK. HOT WATER HEATING APPARATUS.

APPLIOATION FILED PEB. 13. 1905.

2 SHEETS-SHEET 2.

ANDERS B. RECK, OF COPENHAGEN, DENMARK.

i Hor-'Waren marine 'nrrnan'rna Specification of Letters vllatent.

raeentea nee. si, reo?.

, .Application filed February 13,1905. Serial No. 245,501-` ATo all 'whom it may concern."

Be it known that I, ANDERS B'. Rnon, a subject of the King of Denmark, and a resident of' Copenhagen, Denmark, have invented a new and Improved Hot-Water Heating Apparatus, of Which the following is a full, clear, and exact description.

My invention relates to hot Water heating apparatus of the class,in Which the velocity of the circulating Water is increased by introducing steam directly into a main rising pipe, causing the Water therein to boil condensation' of the steam, developed by such boiling, being effected by the circulating Water. v

ln the improved means constituting my invention a jet (liquid) condenser is employed, condensation being eected by bringing the steam, developed by boiling in the main rising pipe, into direct contact With the Water circulating in the hot-Water apparatus before the steam from the boiler is introduced into said Water.

Figure 1, Fig. 2 and Fi 3 of the accompanying drawings, are iagrams of three methods of applying Wet condensation to hot-Water apparatus.

ln Fig. 1 is shown'a complete hot-Water heating circuit consisting of a main flow pipe N1, a riser n, radiators n connected to the riser, a return main and a main'rising pipe, comprising sections N2, N and M and condensing and heating chambers c and H communicating With said sections. The section N 2 conducts Water from the main return of the hot-Water apparatus to the condenser c; section N communicates with the heating chamber H; section M delivers to a separator chamber tank S, to which the main ilow' pipe N1. is connected, the aforesaid making .a continuousl circuit.

The steam space of the boiler E and the heating chamber H are .connected by a steamvpi e s, which is provided with a foraminate delivery end s. The top of the separator tank S and the condensing chamber c are connected directly by a steam p i e A. An overovv pipe f, connected toft e Water space .of the steam boiler, prevents the Water line in the hot water apparatus from exceeding a predetermined height. The steam from 4the steam pipe s is condensed in the heating chamber H, thus adding to the quantity of the Water in the hot- Water ap aratus. The separating tank 'or chamber is provided with an air passage L preferably in the form of an automatic valve,

"closing automatically, when the steam has expelled the air from the upper space ofthe separator. Before starting the apparatus the `same is iilledv with Water to about the' level of the outlet of the overflow pipe f,`the

Water rising in the pipe A to a level equal to that in the chamber When suflicient ,steam pressure. has developed in the steam boiler E, steam will pass through the pipe s and enter the heat- 'ing chamber H. The water 'in the chamber H,.due to the entering steam, Willboil as- Will that in thepipe M. The Water column in said pipe is then lightened by the-steam and being in eommunicationwith the Water l columnformed by section A, chamber c and a'portion of section N', the latter column y descends until a hydrostatic equilibrium is eected, leaving a s ace within and above the chamberc. This space being in communication with chamber S and above the Water level in the latter, the steam which lseparates itself from the Water in the tank S thereby-gains access tothe jet condenser in the chamber c. The steam thus passes from chamber S to c by reasonof the reduced pressure due to the condenser.

The chamber S in the embodiment shown in Fig. 1 `performs not only thel function of separating the steam from the Water, but acts as 'an expansion chamber for the hot- Water-apparatus, the Water added to chamber S by condensation of steam in the heaterA H overiiowing by pipe f, When steam is cut 0E from pipe e heater H and ipe M, the Water column in the latter, not lfacing lightened by steam, Will rise in chamber c and pipe A. rlhe Water necessary `to fill the empty s ace in chamber c and pipe A must come om chamber S, and to maintain a-continuou's'circulation in the a aratus, the chamber S must, in the 'embo iment shown in Fig. l be of reater capacity than chamber c.

' en the water column in pipe M is lightcned by the steam, the Water in chamber S will flow towards the condensing chamber c through the hot-Water-iloW-pipe N the riser n, the hot-Water return main and the pipe N2. 'lhe result will be that kWaterwhich'enters the chamber c from the pipe N2, will meet here the, steam from the chamber S,.

' 'chamber S, thus a continuous circulation in ay aan ,ank s the pipe M and .an effective circulation of the Water in the whole heating apparatus can be maintained.-

In Fig. 2 is shown va modification of the construction shownl in Fig. 1, the steam boiler and return main of the hot-water apparatus being omitted. The diilerence 'between the two forms of apparatus, as shown is, that in Fig. 1 the air passage L for -air from the apparatus and the overflow pipe f are connected with'the expansion chamber S, in Fig. 2 this outlet, L', yand overflow, f', are shown connected to the condensing cham-4 ber c, and in the same figure the pipe A is eX- tended to chamber c terminating in a rose a short distance fromthe bottom of chamber c.

Tank c in Firr 2 must be of greater capacin order to make the water circuit continuous under all circumstances. Before steam enters heater II in pipe M (Fig. 2i). and'has lled to the-level-of the overflow ipe in chamber c, the water level in cham- Eer S will be the same as in chamber c, but as soon as steam'rises in pipe M and makes the column" in M lighter the water will ascend in I chamber S till an equilibrium is established,

Whereu on the `water level in chamber c will deseenA In this form of apparatus the chamber c must be of greater capacity than chamber S, otherwise chamber c would he emptied and the continuous water circuit destroyed between pipes N 2 and N, before the Water had ascended in chamber S to the level where equilibrium between the diderent columns is established. The water formed 'by condensation inthe heater H will subseqi'lently reiill the tank c to the level of the f ratus for separating steam and water.

v yIf the steam pressure in the steam pipe -s is such that with atmos heric pressure in chamber c `more steam wil passthrou h chamber H, pipe' M,.tank S and pipe A t an can be con ensed by the water passing throu h chamber c then an automatic air valve Il .must be provided. If the steam ressure in pipe sis kept down below a certain imit, then the.steam'passing through ipe A'will alwa s be entirely condensed andp no valve will e needed -thusit will be `seen that this outlet can be ermane'ntly o en to the atmosphere `or the c amber c itsel can be open;

In Fig. 3 is shown the referred form of the invention, wherein the ocation of the overow pi e f and the propcrtionbetween the sizes o the two chambers S and c are the same as in Fig. l, pipe A terminating in chamber C 'as 1n`-Fig. 2, and an air vassa'ge L located on a vertical ppe J. N

Sand at the am@ level in ank is, pipe'ii and pipe J. When steam enters chamberI-I the rising column of water is lightened in pipe M,

then if chamber c is not located too low,-the

pipe A will be wholly empty, and steam will have access from tank S to chamberc. atmospheric pressure, acting through the air passage `L will 'depress the water level lin'v pipe J but asthe steam pressure over. the water in tank S will always b somewhat higher than atmospheric pressure, as long as the water-boils in pipe M, the water level will not de- 'A will collect over the Water 1n ipe J and'Y will pass out of the passage L. y veryvv ac# curate regulation of the steam pressure in pipe s, this outlet may be` left Without any closing device just as in an apparatus ,built according to Fig. `2, but in most cases it willl give. best results to an automatic valve. A f

; I am aware that jet condensers have been provide the outlet with/1"l .I

employed by others for hot water heating ,i

apparatus but only for that ,class'ofi apparatus, Where the boiler of the apparatus is a hot water boiler, and'where the main-return j hot-water pipe after having passed the jet condenser is carried down and connected to the lowerpart of the hot-water boiler, from,Y

ter through pi es from the jet condenser` down to the boi er andfrom'the boiler a ain' up to the' expansion-tank a great dea of friction is caused especially in high' buildings and in such buildings where from some reason' the expansion-tank can not be placed directly over the boiler. where steam from a steam-boiler is employed to heat the water to lboiling. point thewat'erV after having passed the jet condenser needv not be carried down to the boiler but only to a hepter laced directly under the expansiontan By my invention,

us the distance the Water has to travel in the Whole apparatus is much shorter, 4

the friction much less andthe circula'tion of the water much more rapid by the sameheat 1 'iiow and return ipes, radiating devices, a

condensingcham er, a steam heating chamber and a separating chamber with a boiler,

,7o-i The., .w

erano? a pipeleading from the steam space of the boiler to the heating chamber, a pipe leading from the upper portion of the separating chamber to t e condenser, a pipe communicating with the separating chamber below the entrance to the last named pipe and leading to the water space of the boiler, and suitable pipe connections leading from the condensing chamber to the heating chamber and from the heating chamber to the separating chamber respectively, the parts being so arranged that in operation the ilow in the hotwater circuit is toward the separating chamberfrom'the heating chamber. p

2. In a heating system, the combination of a hot-water circuit comprising suitable flow and return pipes, radiating devices, a condensing chamber provided with an air vent, a steam heating chamber and a separating chamber with a boiler, a pipe leading from the steam space `of the boiler to the heating chamber, a pipe leading from the upper portion of the separating chamber to thecondenser, a pipe communicating with the separating chamber below the entrance to the last named pipe and leading to the water space of the boiler, and suitablepipe connections leading from the condensing chamber to the heating chamber and from the heating chamber to the separating chamber respectively, the parts being so arranged that f in operation the low in the hot-Water circuit is toward the separating chamber ,from the heating chamber.

3. In a heating system, the `combination of a hot-Water circuit comprising suitable flow and return ipes, radiating devices, a condensing cham er, a steam heating chamber and a separating chamber with a boiler, a ipe leading from the steam space of the boller to the heating chamber, a pipe leading i from the upper portion of the separating chamber to the condenser, a ipe communicating with theI se arating dhamber below the entranceto the ast named pipeand leading to the water space of theboiler, a pipe rising from the condenser and an air valve on said pipe on a higher level than the entrance on the separating chamber to the said pipe thatleads to the water space of the boiler, and-suitable pipe connections leading from the condensing chamber to the heating chamber and vfrom the heating chamber to the separating chamber respectively, the parts being so arranged that in operation the flow in the hot-water circuit is toward the separating chamber from the heating chamber.

In testimony whereof I aIiX my signature in presence of two witnesses.

ANDERS B. RECK.

` Witnesses:

C. H. CRAWFORD, L. WALDMAN.

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