US782632A - Liquid-heater. - Google Patents

Description

PATENTED PEEL 14, 1905.

WALDBAUR. LIQUID HEATER.

APPLIUATIOH IILBDAUG. 10, 1901.

zen of the German Empire, residing atStutt enable others skilled in the art to w or chamber and means for .vention; Fig.

UNtT D STATES Acct? WALDBAUR, on

Patented February 14, 1905v STUTTGART, enRMANY.

' LIQUID-HEATER;

SPEGIFICATION forming partpf Lette .Zpplieatiun filed August 10, 1901. seat! in. 71,526.

rs Patent No. 782,632, dated February 14, 1905.

f/o all Ill/1107M it may concern:

Be it known that I, ADOLF WALD AUR,a citigart, Kingdom of WViirtemberg, (iermany; have invented certainnew and useful Improvements in Liquid-Heaters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will hich it appertainsto make and use the same.

The present invention relates'to heating apparatus for-liquids, and especially devices for. heating water, the object of the same being to. provide a simple and cheap heatingdevice for this purpose which will occupy a very small space and in which the caloric of the heating medium' will be given off to the water or other liquid in the completest mannerpossible.

With these objects in view an apparatus-embodying my invention combines with a heating pipe or chamber one or more Sources of flame, such as Bunsen burners, which are in direct communication .with said heating pipe injecting into the same water in a spray or tine jets in such a way as to create sufficient suction or draft to draw the flames into the body of the water or" other liquid to be heated, and thereby into intimatc contact with the same. By this means a strong air-draft is created, whereby the coin bustion of the Bunsen burners takes place in so complete and thorough a manner as to eliminate all odor of the gas, and, moreover, the products of combustion and the liquid are so completely mixed that the heating efl'ectol' the former is fully transmitted to the latter.

Other features of my inai'tcr described, out in the claims: l will now describe my invention in detail with reference to the accompanying drawi ngs, in whicl Figure 1 represents a water-heating apparatus and particularly pointed side elevation of a embodying my in-, 2, a vertical longitudinal cen 'tral section of the same on an enlarged scale; Fig. 3, a transverse section on line :1: 11:, Fig. 2; Fig. 4:, a-.top plan view of the same; Fig. 5, a vertical-section on line A A, Fig. of a J somewhat-modified form of apparatus eml in vention will be herogas-bu i-ne Referring first to Figs. 1 to 4, it will be observed that the heating apparatus represented therein in embodiment of my invention con- .sists of a liquid-heating pipe 1!, having acouical or flaring enlargement l1, constituting an approach thereto, to which is joined a waterpipe it, provided with any suitable cock orregulating device vi. lntothis conical enlargement ('1 is fitted in any suitable way--for example, by aserew-joinaas shown --a similarly conical fiue c, the enlargement b and deflector a being so shaped and arranged that only a very thin annular space for the passage of the water to the heating-pipe rt is left. A Bunsen gas-buruer consisting of one or a number of gas-jets (1 extends into the rear end of the flue 0, these burners in the present instance being secured to and deriving their gas-supply from a common gas-chamber e, which gaschamber in turncommunicates with the gaspipef, controlled by any usual or convenient gas cook or valve g. The forward end of the pipe 11. may be connected at 1/," with a further cold-watcr pi pc 11., having a cock 1, whereby the heated water maybe mixedand tempered with cold water according to need or desire. As sho wn,thc gas-chamber 1' is removably conlHN'llGti to the ei'ilargeinent oby means of a metal sleeve k, having a number of air-openings A" for furnishing the air-supply to the Bunsen-burner lach individual jetr/ of the r is, as shown, made in the usual form of a Bunsen burner, having the usual air- (awnings 1t.

For convenience of illustration the heating apparatus is shown in a horizontal ;.::sition in the various ligurcs of the drawings,.ln tin the practical appliczution ot' the device it is usually arranged verticallyinstead ot' horizontally, the water and products of combustion being introduced downwardly.

In operation, the gas burner being lighted in the usual manner and the cocky: being operated to the desired extent, the water pro ceeds to flow through the narrow annular too of the rrow, thereby creating a draft or suction inthe,manner well known in in ectors. Thereby the air of combustion is drawn heater.- pipe at in an annular spray by the annular sprayer 6, while the heating-flame. are injected into the same at its open rear en a from a battery of Bunsen burners (Z, which with such force and speed through the airmay be swung into and out of position for openings 7: and d as to create a flame or flames of great intensity and heat, which flames and lighting and "for other purposes mounted on a swiveled gas-supply pipef, a

the heated products of combustion therefrom shown.

are forcibly injected, in the direction of the arrow 2, into the water'as it passes through the heating-pipe (0, thereby quickly heating the same and giving off practically all of their heat to the water. Since under these conditions the combustionis complete, no gas odor or taste is impartedzto the water, the carbon dioxid generated in combustion beingpracoperation water may be heated for drinking, cooking, bathing, and other purposes in an exceedingly short time and, as noted from the above, the means for effecting the result are of ple nature that an exceedingly pensive and, if desired, portable apparatus may be made under iny invention for heating water for various purposes. The amount of water to be heated in a certain time and the temperature to be imparted to the same may be nicely regulated by properly turning the v gas-cock 1 or the water-cock v", or both.

is in further regulating means for this purpose embodied in the water-cock 0., arranged the subsidiary water-pipe w.

In Figs. 5 and 6 I have representeda moditied form of water-heater under my invention which differs from that just described inthe following particulars: The water-heater. is under this construction provided with one or more flues c'- in the present instance two-- communicating with its interior at its rear end at 0. Below the fiucs a are arranged Bunsen gas-burners r], as in the first example, suflicient space being left between the burners and the lower openings of the fines to ad will be understood;

mit a sufficient draftof air for rapid combustion, the flues being preferably flaring at their bottom, so as to intensify the draft, as 1 The burners are fed from the gas-pipe a, controlled by the gas-cock g, as in the first example. The water is in the present case injected into the heater-pipe (I in the form of a spray behind the flame-inlets through the spray nozzle or rose 1). At its forward end the heating-pipe (1- may be provided with a flue 7), through which the heated water passesdownward, as indicated by arrow 3. The direction of the flow of water and of the flames and products of combustion are here again'indicated by the arrows 1 and 2, respectively. In this example, it will be noted, he flames pass in advance of the water: -1nlet, while" the reverse arrangement discl:'.-sed.in the first example."

such very sim-- light and mex- From all of the above exemplifications of the manner in whichmy invention may be carried into eflectit will be seen that one part of said invention consists, essentially, in a liquid-heating pipe or chamber in combinationwitha source of flame directly communicat ing therewith, so that the flames or products of combustion will directly enter the liquid to be. heated.

Another important feature is the fact that& strong draft or suctionis created which can by being ries a current of air through and around the flame-generators, whereby an intense heat and a perfect combustion are produced, the degree" of heat supplied by the burners being directly and automatically regulated by the supply of the liquid to be heated.

Still another importantdistinguishing ture of my invention lies in the fact that the water-injector in the shape of a spraying or contracted nozzle for feeding the water to be heated to the heatin g pipe or receptacle serves to create said strong draft or suction throu'gh' the air-supply for the burners, whereby, as stated, an intense and perfect combustion is attained.

What I claim, and desir'e'to secure by Letters Patent of the United States, is-

1. In a liquid-heater, the combination, with a heating-receptacle open to the atmosphere,

of a burner arranged to throw its heat into for introducing the under pressure and means said receptacle, means liquid into the vessel whereby the flow of the liquid controls the draft of the burner. 2. Inaliquid-heater, the combination, with a heating-receptacle open to the atmosphere w ith jector action of the liquid will supply air to the burner inquantities varying with the flow of the'liquidi 4, In a liquid-heater, the combination, with a burner and air-inlets, and a passagearranged about saidburner, of means and heated into atmosphere with the burner, whereby the in- .1 3c; of a Bunsen burner arranged to throw its heat;

for discharging the liquid to be heated into the receptacle through said passage, whereby the draft'upon the burner is automatically regulated by the supply of the liquid to be heated.

- 5. inaliquid-heater, the cOmbinationAigith a heating-pipe open to the atmosphere. an

annular inlet, and means for forcing the liquid to be heated into said pipe through the inlet,"

of a burner arranged to throw its flames into the heating-pipe centrally of the liquid-inlet, and air-inlets communicating from the outer air withthe burner, whereby the moving liquid will supply air to the burner in quantities varying with the flow of the'liquid.

6. Inaliquid-heater, the combination, with a heating-receptacle open to the atmosphere,

- an approach to said receptacle, a pipe disposed within the approach in such manner as to leave an annular space between the pipe and the ap- I proach, and means. for discharging the liquid to be heated into the receptacle by way of-the annular space, of a burner disposed within the pipe in such relation as to project the heated products of combustion therethrough, and an air-inlet, whereby the flow of the liquid will by an injector action create adra-ft acting upon the air from the inlet to the products of combustion from the burner.

T. In a liquid-heater, the combination, with a heating-receptacle, a conical approac i to said receptacle, a pipe disposed within but out of contact with the conical approach, and means for discharging the liquid to be heated under pressure into the annular space between the pipe and thoapproach, of a burner disposed within the pipe in such relation as to projectits incandescent gases therethrough, and an airinlet to the burner whereb the flow of the; liquid from the annular space into the 'heatingreceptacle will by an injector action create a draft acting upon the air from the inlet and the productsof combustion from the burner.

8. In a liquid-heater, the combination, with aheating-receptacle opento the atmosphere, a conical approach to said receptacle, a pipe disposed within, but out of contact with the conical approach, and means for discharging the liquid to be heated under pressure into th annular space between'the pipe and the approach, of a burner disposed within the pipe in such relation to project its incandescent gases therethrough, and an air-inlet to the burner whereby the flow of the liquid from the annular space into. the'heating-receptacle will by an injector action create a draft acting upon the air from the inlet and the products of combustion from the burner, said draft being substantially proportionate to the supply of the liquid to be heated.

9: In a liquid-heater, the combination, with a heating-receptacle, a conical approach to said receptacle, a conical pipe disposed within but out of contact with the conical approach, and means for discharging the liquid to be heated into the annular space between the pipe and the approach, of a fuel-burner disposed within the conical pipe in such relation as toproject its incandescent gases therethrough, and an air-inlet to the burner, whereb,v the ,iiow of-

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