US1840235A - Steam boiler - Google Patents

Description

Jan. 5, 1932. KILBURY 1,840,235

STEAM BOILER Filed July 7, 1930 gwoemtoo JD.Ki1.Bu1 a]- Patented Jan. 5, 1932 UNITED STATES PATENT OFFICE PAUL DULUTH KILBURY, F NEWTON, IOWA, ASSIGNOR OF ONE-HALF TO JOHN W. BILLINGSLEY, OF NEWTON, IOWA STEAM BOILER Application filed July 7,

The principal object of my invention is to provide a low pressure steam boiler for use with oil burners.

A further object of this invention is to provide a steam boiler that is capable of producing a maximum amount of steam in a minimum length of time, with a minimum amount of used fuel.

A still further object of my invention is to produce anefiicient steam boiler of few parts.

A still further object of this invention is to provide a novel steam boiler for use with oil burners that is economical in manufacture and durable in use.

A still further object of my invention is to provide a steam boiler that is capable of producing a great amount of steam without occupying a large space.

These and other objects'will be apparent to those skilled in the art.

My invention consists in the construction, arrangement and'combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying drawings, in which:

Fig. 1 is a side sectional view of my complete invention.

Fig. 2 is a cross sectional view of my steam boiler taken on line 2-2 of Fig. 1 and more fully illustrates its interior construction. I

Fig. 3 is a cross sectional view of my device taken on line 33 of Fig. 1 and illustrates the position of the steam dome in the steam boiler housing.

Steam boilers have been used for a great number of years, but they are not efiicient and much of the heat produced to transfrom the water into steam passes out of the smoke stack unutilized. This is especially so when an oil burner is used as the heating agent and although my steam boiler may use other heating agents than oil burners, it is particularly adapted for the use of oil burnersas will hereinafter be appreciated.

I have used the numeral to designate the housing having its side wall of a continuous circular construction. In the upper portion of the side of the housing 10 .is an outlet port 11 designed to be in communication with the outside atmosphere by means of a pipe, chimney or like not shown. I have designated the main combustion chamber by the numeral 12 located in the center of the lower half of the housing 10 and spaced apart from the bottom of the housing 10 as shown in Fig. 1. The numeral 13 desigso nates a comparatively large horizontal inclosed passageway having one end communicating with the inside of the combustion chamber 12 and its other end communicating with the outside atmosphere o5 through the side of the housing 10. The outer end of this large passageway 13 is inclosed by the usual furnace door 14 and it is through this door 14: and the passageway 13 that an oil burner or like (not shown) in jects the fire into the combustion chamber 12.

The upper end of the combustion chamber 12 communicates with a second chamber 15 having a diameter greater than the diameter of the combustion chamber 12 but a diameter less than the inside diameter of the circular housing 10. This chamber 15 has above it a chamber 16 which is of the same diameter as the circular housing 10 due to the fact that the upper portion of the housing so 10 forms the chamber 16. The upper open end of the chamber 15 is prevented from communicating with the chamber 16 by the steam tank dome 17 resting on the bottom or plate 18 of the chamber 16. This tank 17 5 has a diameter slightly larger than the diameter of the chamber 15 and less than the inside diameter of the housing 10 as shown in Fig. 1. Also it will be noted that the tank 17 is of less height than the height of the chamber 16, thereby providing a space between the top of the tank 17 and the top of the housing 10. To insure no communication between the chamber 15 and the chamber 16 a gasket 19 is placed on the plate 18 around the marginal edge of the chamber 15 and under the tank 17. The numeral 20 designates the bottom circular plate of the chamber 15 which encircles the upper marginal edge of the chamber 12. The numeral 21 desloo ignates a disk plate in the lower end portion of the housing 10 for forming a compartment 22 in the bottom of the housing 10. This disk plate 21 is spaced apart from the bottom of the chamber 12 and a considerable distance from the extreme bottom of the housing 10. The numeral 23 designates a plurality ofair liues having their upper ends communicating with theinside of the chamber 15 through the plate 20, and their lower ends communieating with the inside of the compartment 22 through the disk plate 21.

The numeral 24 also designates air flues' in the housing. but which have their lower ends/communicating with the inside of the compartment 22 through the disk plate 21, and their upper ends communicating with the chamber '16 through the circular plate 18,. By this arrangement a. space will exist in-tthe housing 10 around the air fines 23 and 24. This space will also'exist between the bottom of the chamber 12 and the plate 21, around the passageway13, above the plate 21, under the plate 20, around the side wall of the chamber 15, and under the plate 18.

We may term this confined space as a water jacket around the designated parts. i

This'above referred to'space is in communication with the inside of the tank 17 by L-pipe connections 25 having one end communicating with the inside otthe tank 17 and their other end with the underside of the plate 18 as shown in the drawings. These: Lconnections maybe secured to the tank 17 and plate 18 by any suitable means such as bolts or the like. The lines 23 may be secured to the plate 21 and plate 20 byany suitable means such as welding, threaded nuts on each end of the flues or like. The flues24 may be secured in the same inanneras the fines 23. The numeral '26 designates an inlet port in the side of the housing 10.communicating with the space between the bottom of the combustion I chamber12 and the plate 21. The numeral 27; designates an outlet port communicating with the lower portion of the tank 17. The numeral 28 designates an outlet steam pipe communicating with the top of the steam dome tank 17. r

I have used the numeral 29 to designate a coil of pipe inxthe compartment 22 and hav- .ing both; ends leading from the housing 10.

This coil of pipe is for heating hot water for desirable purposes and is accomplished From the combustion chamber 12 they heat will rise into the chamber 15 and not only contact the water surroundingthe chamber 15 but will make direct contact with the bottom of the steam tank dome 17, thereby heating the water inside the same to a high temperature. From the chamber 15 the heat Will go downwardly throu h the fiues 23; thereby heating the water around the fines 23 and will enter the compartment 22. Inside the compartment 22, the remaining heat will contact with the coil of pipe 29 and the bottom of the plate 21, thereby warming or heating the water adjacent the plate 21.

vFrom the compartment 22 the remaining heat will pass upwardly through the fines 24 into the chamber 16, thereby heating the water surrounding the fines 24. From the chamber 16 the remaining heat will pass from around the tank 17 and then out through the port or outlet opening 11.

By this construction very little heat, it any, will be passing out of the port 11 as most of the heat units will be absorbed by the water surroundingthe' fiues, chambers and in the tank 17 Some changes may be made in the construction and arrangement of my improved steam boiler without departing from the real spirit and purpose of my invention, and it is my intention to cover my claims any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope.

I claim:

1. In a device of the class described, a housing, a combustion chamber in said housing, an individual detachable tank in said housing closing the top oi said combustion chamber and having a diameter less than the diameter of said housing, a water jacket around said combustion chamber, and pipes in said water acket each having one end operatively communicating with said combustion chamber and their other end communieating with the space between said tank and said housing for permitting hot air from said combustion chamber to pass from said combustion chamber, through the water in said water jacket and into the'spa'ce around said tank.

2. In a device of the class described, a housing, a combustion chamber in said housing, a second chamber above said first mentioned chamber and communicating with the same, a water jacket around the sides of said two chambers, a detachable tank in said housing entirely spaced apart from said housing and inclosing the top of said sec ond chamber, fluesextending through said water acket each having one end communieating with said second chamber, and fines returning through said water jacket each having one end communicating with the otherend of said first mentioned flues and 7 a diameter less than the diameter of said housing providing a compartment around the entire sides and top of said tank, a water jacket around said chambers communicating with said tank, and hot air flues passing through said water jacket having one end in operative communication with the inside of said second chamber and their other end in direct communication with the compartment around said tank,

4:. In a device of the class described, a housing, a combustion chamber in said housing, a second chamber communicating with the top of said first mentioned combustion chamber, a detachable tank above said last mentioned chamber, in said housing and having a diameter less than the diameter of said housing providing a compartment around the sides and top of said tank; said tank com pletely closing the entire top of said chamber, a water jacket around said chamber communicating with said tank, a compartment in the bottom of said housing, a plurality of fiues extending through said water jacket each having one end communicating with the inside of said second chamber, and their other end communicating with the inside of the compartment in the bottom of saidhousing, and a plurality of flues passing through said water jacket each having one end communicating with the inside of said compartment in the lower end of said housing and their other end communicating with the compartment around said tank.

5. In a device of the class described, a housing, a combustion chamber in said housing, a second chamber communicating with the top of said first mentioned combustion chamber, a tank above said last mentioned chamber completely closing the entire top of said chamber, in said housing and having a diameter less than the diameter of said housing providing a compartment around the sides and top of said tank, a water jacket around said chambers communicating with said tank, a compartment in the bottom of said housing, a plurality of flues extending through said water jacket each having one end communicating with the inside of said second chamber, and their other end communicating with the inside of the compartment in the bottom of said housing, a plurality of fiues passing through said water jacket each having one end communicating with the inside of said compartment in the lower end of said housing and their other end communicating with the compartment around said tank, and an outlet port in the upper end portion of said housing having one end communicating with the compartment around said tank and its other end communicating with the outside atmosphere.

6. In a device of the class described, a housing, a compartment in the bottom of said housing, a compartment in the top of said housing, a combustion chamber between said compartments, an independent detachable tank in the compartment in the top of said housing and above said combustion chamber, an entrance passageway in said housing having one end communicating with the inside of said combustion chamber and its other end communicating with the outside atmosphere, a door for inclosing said passageway, a water jacket around the sides and bottom of said combustion chamber and around said passageway, pipes leading from said tank to said water jacket, vertical flues in said water jacket each having its upper end comunicating with the inside of said combustion chamber and its lower end communicating with the compartment in the bottom of said housing, a plurality of fiues passing through said water jacket having their lower ends communicating with the compartment in the lower end of the housing and their upper ends communicating with the compartment in the upper end of said housing, and an outlet port communicating with the inside of the compartment in the upper end portion of said housing.

7. In a device of the class described, a housing, a combustion chamber in said housing, an independent detachable tank closing the top of said combustion chamber having its entire sides and top spaced apart from the inner side of said housing, a compartment in the bottom of said housing and covering its entire bottom area, a water jacket embracing the entire bottom and sides of said combustion chamber, flues in said water jacket, each having one end communicating with the inside of said combustion chamber and their other end communicating with the bottom compartment in the bottom of said housing, a plurality of fiues passing through said water jacket each having one end communi: eating with the compartment in the lower housing, and their other end communicating with the space between the said tank and said housing, and an outlet port communicating with the space between the said tank and said housing; said parts so designed and arranged that all of the hot gases from the combustion chamber passes through said fiues.

PAUL DULUTH KILBURY.

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