US1840575A

US1840575A - Water heater

Info

Publication number: US1840575A
Application number: US492823A
Authority: US
Inventors: George E Flower
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-11-01
Filing date: 1930-11-01
Publication date: 1932-01-12
Anticipated expiration: 1949-01-12

Description

Jan. 12, 1932. FLOWER 1,840,575

WATER HEATER F iled Nov. 1, 1930 Sheets-Sheet l Jan. 12, 1932.

G. E. FLOWER WATER HEATER Filed Nov. 1, 1930 2 Sheets-Sheet 2 1. m n We Patented Jan. 12, 1932 warren STATES GEORGE E. FLOWER, OF HOBART, NEW YORK WATER Application filed November The object of this invention is to provide a water-heater of simple construction which will utilize to a high degree the heat developed by the burner, as more fully hereinaft-er set forth.

This application is a continuation in part of my copending application Ser. No. 356,068, filed April 18 1929.

In the drawings in Fig. l is a side elevation of my apparatus; Fig. 2 is a vertical section on the line 2-2 of Fig. 5;

Fig. 3 is a vertical section on the line 33 of Fig. 5; Fig. 4 is a detail plan partly in horizontal section of the header of the heater unit;

Fig. 5 is a view of one end of the heater unit;

Fig. 6 is a View of the other end of the 2 heater unit.

Referring to the drawings annexed by reference-characters, 10 designates a watertank; 11, a hot-water pipe leading to the top thereof; 12-, a cold-water pipe leading to the bottom of the tank. The cold-water pipe 12 is connected to a nipple 13 formed on the side-wall of a header-casing 14, and the hot-water pipe 11 is connected to a nipple 15 leading into said casing 14. The casing 14 is divided horizontally into two chambers 16 and 17 by a partition-wall 18. The coldwater nipple connects with the top chamber 16 and the hot-water nipple 15 connects with the lower chamber 17. To enable the hot and cold water connections 11 and 12 to be varied, I prefer providing an additional cold-water nipple 19 and an additional hotwater nipple 20, each of which is closed by a plug 21 which may be removed and inserted in the

nipples

13 and 15 should the

supplemental nipples

19 and 20 be employed instead of said

nipples

13 and 15.

Connecting the water-chambers 16 and 17 is a plurality of U-shaped tubes arranged to conduct the cooler water from chamber 16 down to the underneath, hot chamber 17, so that the circulation through the unit will be through the cold-water inlet 13, chamber 16,

5 the U-shaped tubes, and thence out through HEATER 1, 1930. Serial No. 492,823.

the hot-Water chamber 17 to the hot-water nipple 15 and hot-water pipe 11.

The burner is arranged under the U-shaped tubes, as shown diagrammaticall at 22 in Fig. 1. The U-shaped heating tu es are arranged in two

groups

23 and 24, which cross each other in the manner shown in Fig. 6. The group 23 is connected to the cold-water chamber 16 at one side of the vertical center of the header 14, and the group 24 is connected to the same chamber at the other side of the vertical center. The bent outer ends ofthe tubes cross each other, the group 24 extending through the group 23 so that the lower legs of the tubes enter the hotwater, outgoing chamber 17 at opposite sides of the vertical center of the header. In this way, a very compact arrangement of heating-tubes is provided, and the straight portions of the tubes are vertically staggered with reference to each other, so that the ascending flames from the burner will give the maximum heating efl'ect to the water circulating within the tubes. For the sake of compactness, the inlet legs of each set of tubes as well as the outlet -legs of each set of tubes are arranged to connect with the chambers 16 and 17 on lines inclining from the center of the header outwardly toward the ends thereof, as shown more particularly in Fig. 6. It will be noted also that the upper, cold-water legs of both groups of tubes incline downwardly toward the outer, bent ends of the tubes, and that from these bent portions the hot-water legs of the tubes incline downwardly, thereby pro- -moting circulation of the water.

It will be observed that in my apparatus the incoming cooler water is preheated in the chamber 16 and the upper legs of the tubes and is then passed through the legs of the tubes that are closest to the flame of the burner to thereby bring the Water to its highest degree of heat just before it ascends into the hotwater pipe 11, to thereby insure a rapid cir- 7 culation of the water and consequently rapid heating of the Water in the tank.

' To prevent air being trapped in the inletchamber 17, I provide a bleed-opening 25 and to permit access to be had to this bleed-opening for the purpose of cleaning it from time to time, I provide a removable screw-plug 26 in an adjacent wall of the header 14L. It will be understood that, altho I have illustrated my heater unit as being independent of a stove, this unit may be built into and form a part of an oil or gas stove, so long as the heating-tubes 232t are so arranged as vto be subjected to the flame of one or more of the burners in the stove.

I prefer making the back wall of the casing a separate plate, 32, andbolting the same removably to the casing by means of bolts 33 and a flange 31 formed on the casing,- a suit able gasket 34 being provided to make the joint motor tight. This makes the device much easier to manufacture and more accessible for cleaning as well as rendering it easy also an outlet, said heating unit embodying a header having an upper cold-water chamber and a lower hot-water chamber connected respectively to said inlet, and said outlet, and a plurality of heating-tubes having their inlets connected to the top chamber and their outlets connected to the lower chamber, these tubes being staggered with reference to each other and having their upper legs inclined downwardly and outwardly and their lower legs inclined downwardly toward the header, the back wall of said header being provided with a deflecting and reenforcing flange extending backwardly into the space between the upper and lower tubes.

In testimony whereof I hereunto aflix my signature.

GEORGE E. FLOWER.

gral flange 35, which extends backwardly into the space between the twosets of tubes throughout the length of the back wall or, the a casing. This flange not only reenforces the back plate of the header or casing, but also serves to distribute the heat more evenly around the heating tubes 23.

What I claim as new is:

1. In a water-heater of the type set forth, 3

a heater unit having a cold-water inlet and also an outlet, said heating unitembodying a header having an upper cold-Water chamber and a lower hot-water chamber connected respectively to said inlet and saidoutlet, and a plurality of heating-tubes having their inlets connected to the top chamber andtheir outlets connected to the lower chamber, these tubes being. staggered with reference to each other andhaving their upper legs inclined downwardly and outwardly and their lower legs inclined downwardly toward the'header,

said tubes being U-shaped and beingarranged V in two groups, the outer U-shaped ends of one group extending within and across the U- shaped ends to the othergroup.

2. In a water-heater of the type set forth,

a heater unit having a cold-water inlet and Y outlets connected to the lower chamber, these tubes being staggered with reference to each other and having their upper legs inclined downwardly and outwardly and their lower legs inclined downwardly toward the header, said upper chamber having-anair bleed port leading into the hot-wateroutl'et and a removable plugfor permitting access to said port for cleaning. 1

In a water-heater of the type set'forth, a I

heater unit having cold 'water-ii'nlet, and