US1784652A

US1784652A - Water heater

Info

Publication number: US1784652A
Application number: US135558A
Authority: US
Inventors: Edwin L Badger
Original assignee: Doherty Research Co
Current assignee: Doherty Research Co
Priority date: 1926-09-15
Filing date: 1926-09-15
Publication date: 1930-12-09
Anticipated expiration: 1947-12-09

Description

Dec. 9, 1930. E. L. BADGER 1,734,652

WATER HEATER Original Filed Sept. 15, 1926 nwnloz Z Edwin L. Badger @ltomaa Patented Dec. 9, 1930 UNITED, STATES PATENT OFFICE EDWIN L. BADGER, or sroxANE, WASHINGTON, ASSIGNOB r DOHERTY RnsEARon coxPANY, on NEW YORK, N. Y., A CORPORATION or DELAWARE WATER HEATER Application filed September 15, 1928, Serial No. 185,558. Renewed May 81, 1928.

My present invention relates to improvements 1n water heaters of the type employing liquid or gaseous heaters, and utilized in connection with the well known stand boiler for domestic purposes.

The invention involves the use of an upright casing or stand pipe in which is contained the heating elements in the form of a flue and means are provided in the flue for causing a return draft of the heating gases.

As thus constructed, the heating element is provided with a maximum heating surface and the water casing or hot water tank asso-' ciated therewith is arranged to distribute '15 the water over the heating surface in a comparatively thin jacket in order that a large quantity of water may be heated in a minimum period of time.

The invention consists in certain novel combinations and arrangements of arts for accomplishing the above results an objects, as will hereinafter be more fully pointed out and claimed.

In the accompanying drawings I have illustrated one com lete example of the physical embodiment o my invention wherein the parts are. combined and arranged according to one mode I have thus far devised for the practical application of the principles of my invention.

Figure 1 is a view showin in elevation the well known t pe of stand lmileryand in vertical section t e water heater connected therewith and involving the improvements of my invention.-

Figure 2 is a transverse sectional view-at line 22 of Figure 1.

a Figure sis a transverse sectional view at line 3-3 of Figure 1.

In order that the utility and eneralarrangement and relation of parts 0 the inven-' tion may readily be understood I have indicated inFigure 1 a stand boiler 1 having the cold water inlet pipe 2 leading into the top thereof as usual; a cold water faucet 3 and pipe-connection 4 at the bottom of the stand boiler and the usual cou ling nut 5. At the top of the stand boiler the hot water pipe 6 is (provided with a similarcoupling nut 7, 60 an connection is made to the water-heater casing 8 by the cold water pipe 9 from coupling 5 and the hot water pipe 10 to the coupling 7, to provide for the required circulation of water through the heater and stand boiler.

The hot water casing or tank 8 is preferably of cylindrical construction with a comparatively small diameter with relation to its height, which as shown is greater than the height of the stand boiler, and the tank, shown as provided with a closed top is closed at its bottom by means of a screw cap 11. Within the tank is located the cylindrical flue 12 concentric with the walls of the tank and forming within the latter an annular, hot water space, or water jacket in contact with the walls of the flue. The space is comparatively narrow in order that the water, as a thin film or jacket, may receive or absorb heat throughout an extensive area, from the enclosed fiue, thus insuring a large quantity of hot water in a short time, and increasing the efiectiveness of the circulation of water the hot water tank and the stand To secure the flue within the tank the former is fashioned with an exterior flange 1 13 at its lower end and the screw cap 11 is utilized to fasten and retain the flue in position by'en agement with this flange. The interior of t e flue is divided by a vertically extending, central artition 14 extending from the bottom 0 the flue and terminatin a short distance below the top closed end 0 the flue. In this manner an updraft passage and a down-draft passage are provided for the hot gases, and pairs of bafile plates 15 are fashioned rigid or integral with the partition for directing the gases into close contact with the inner surface of the walls of the fine to increase the heating effect. These baflie walls as best seen in Figure 2 are semi-circular in shape in order to provide narrow openings between their edges and the adjacent wall of the flue, and

as the hot gases pass through these restrictions they are causedto impinge against the wall of the flue. To more directly cause this contact of the hot gases with the flue walls, the baflle plates are inclined slightly as shown in-Figure 1 for the purpose of de-- control valve 17, and the burner 18 at, the.

end of the pipe is located in the bottom por- Eion of the up-draft passage of the return- The lower end of the heater is provided with a circular head 19, and the out et opening 20 from the flue o ens .into an elbow or bent pipe 21 which 15 connected to the upright pipe 22 that leads to a suitable flue 23. The burner is introduced through an opening in the lower head 19, and the latter is removable to permit access to the interior of the heater for removal of the inner flue 12, after the screw cap 11 has been removed. By the removal of these arts the interior walls of the flue, its partition and bafiie plates, are readily accessible for cleaning or scraping to remove therefrom accumulations of soot etc. deposited by'the hot gases through the flue.

As thus constructed it will be apparent that an extensive heating area is provided for the flue, the walls of the flue are intense- 1v heated by the deflected gases as they pass therethrough and the thin jacket of water in the annular space surrounding the flue is quickly and thoroughly heated to insure a rapid circulation and make available a 1loar e supply of hot water through the stand Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. A water heater comprising a tank having inlet and outlet connections, an interior flue forming an annular water space, a vertical partition within said flue and bafile plates thereon, an exterior flange on the flue and a screw cap on the tank for said flange, a removable head at the lower end of the tank and flue having an outlet and an outlet to said chamber, and a burner mounted in one of said flue passages.

3. A water heater comprisin a tubular casin mounted vertically an havin a closed top, another tubular casing of srna ler.

len h and diameter mounted concentrically wit in the larger casing and having a closed top and a flange on its lower end arranged to form a closure for the lower end of said larger casing, a vertical partition in said' smaller casing dividing it into a return flue .having connecting updraft and downdraft passages terminating at the base of the pipe connected thereto for gases, and a burner located in an opening in said head and enclosed within the lower end of the flue.

2. A water heater comprising two tubular casings of unequal length and diameter each closed at one end, the smaller being mount ed concentrically within the larger and hav- 7 ing its open end joined to the open endof the larger by an annular closure for the otherwise open end of the chamber thus formed between the two casings, a partition dividing the smaller casing longitudinally into two parallel flue passages of equal length connected by an opening formed between the closed end of said casing and said partition, water inlet and outlet connections