US2028281A - Burner - Google Patents

Description

Jan. 2%1936. L. B. HANCOCK BURNER Filed Feb. 20, 1933 Patented Jan. 21, 1936 UNITED STATES rArENr OFFICE BURNER Lillard B. HancOckyHumbIe, Tex. Application February 20, 1933, Serial No. 657,638 A 2 Claims.

This invention relates to a burner.

An object of the invention is to provide a burner of the character described specially designed for utilizing a liquid fuel, such as crude petroleum or its derivatives.

Another object is to provide a burner wherein provision is made for utilizing hot steam under pressure not only for heating the fuel to assist in the vaporization thereof but also for ejecting the fuel from the burner into the furnace.

A further object of the invention resides in the provision of a burner of such construction that the hot air and gases from the furnace may be utilized to assist in the vaporization of the fuel.

With the above and other objects in view this invention has particular relation to certain novel features of construction, operation and arrangement of parts an example of which is given in this specification and illustrated in the accompanying drawing, wherein:

Figure 1 shows a longitudinal sectional view of the burner.

Figure 2 shows a fragmentary longitudinal sectional view taken on the line 2-2 of Figure 3 and Figure 3 shows a crosssectional view taken on the line 33 of Figure 1.

Referring now more'particularly to the drawing, wherein like numerals of reference designate similar parts in each of the figures the numeral I designates a tubular outer shell secured to the ends of which are the annular plates 2, 3 each made up of a series of concentric 7 rings. Adjacent the end plate 2 there is a hollow pipe connection 4 to which one end of the fuel nozzle pipe 5 is anchored, said nozzle pipe being arranged concentric with and extending axially through, the burner and terminating in a nozzle 6 which projects out beyond the end plate 2. Anchored to the connection 4 and surrounding and concentric with the fuel nozzle pipe 5 there is a steam nozzle pipe I which extends through the burner beyond the end plate 3 thereof and which terminates adjacent but short of the nozzle 6.

There are the outer and inner concentrically arranged, tubular jackets, 8, 9, whose ends are closed by the respective end rings 2, 3.

The rings 2 form spacers between the steam nozzle pipe 7, and the inner housing 9; between the inner and outer jackets 9, 8, and between the outer jacket 8 and the shell I. The rings 3, at the nozzle end of the burner, form spacers between said jackets and between the outer jacket and the shell. A fuel chamber I is thus formed between the shell and the outer jacket which the fuel pipe ii enters adjacent the rings 2. This chamber has the longitudinal partitions l2, l2 spanning the same and preferably oppositely arranged and extending from the rings 2 almost to the nozzle end of the burner but falling short of the rings 3 to provide passages l3, l3 around the nozzle ends of the partitions i2, if. The fuel line is controlled by the 0 valve It. Fuel entering the chamber I0 is compelled, by the partitions l2, I 2 to travel along one side of said partitions and through the passageways It at the nozzle end of the burner and the fuel passes thence out through the pipe [5 and into the corresponding end of the nozzle pipe 5 and passes thence through said nozzle pipe 5 and issues out through the nozzle 6.

Between the outer and inner jackets 8, '9, there is the steam chamber it which the steam line I? enters through the corresponding ring 2, said steam line being controlled by the valve 18. Along the upper side of this chamber it is formed with a channel H) by means of the longitudinal, spaced, partitions 2B, 2!] which span the chamber l6 and extend from the corresponding ring 2 toward the nozzle end of the burner but fall short of the ring 3 providing steam passageways as 2|. The steam entering the chamber H5 is compelled, by the partitions 20, to pass along said chamber it through the passageways 2! and back through the channel l9 and thence passes out through the pipe 22 and into the connection 4 around the fuel nozzle pipe 5 and passes thence through the steam nozzle pipe 1 and is discharged into the furnace around the nozzle 6, acting to eject the fuel from said nozzle and to thoroughly mix the fuel and steam in the furnace.

The steam in the chamber it heats the jacket 8 and the fuel around the same and both the fuel and steam are forced to circulate about the nozzle end of the burner, which is in the furnace, and are thereby further heated.

Ordinarily the steam and fuel are both (16- livered to the burner under pressure and will be discharged into the furnace mixed together and in combustible state.

vThe drawing and description disclose what is now considered to be a preferred form of the invention by way of illustration only, while the broad principle of the invention will be defined by the appended claims.

What I claim is: V

1. A burner comprising an outer shell, concentric outer and inner jackets spaced apart to form a steam chamber between them and being arranged within the outer shell, the outer jacket being spaced from the shell to form a fuel chamber between said shell and outer jacket, a steam nozzle pipe within and spaced from the inner jacket and forming an air chamber between them said fuel and steam chambers being closed at both ends and said air chamber being closed at its outer end and open at its inner, or nozzle, end, a fuel nozzle pipe arranged within and spaced from said steam nozzle pipe, a fuel line entering the outer end ofthe fuel chamber and a fuel pipe leading from the outer end of said last mentioned chamber and entering the outer end of the fuel nozzle pipe, a steam line entering the outer end of the steam chamber and a steam pipe leading from said last mentioned end of the steam chamber and entering the outer end of the steam nozzle pipe.

2. A burner comprising an outer shell, concentric outer and inner jackets spaced apart to form a steam chamber between them andbeing arranged within the outer shell, the outer jacket being spaced from the shell to form a fuel chamber between said shell and outer jacket, a

steam nozzle pipe within and spaced from the inner jacket and forming an air chamber between them, said fuel and steam chambers being closed at both ends and said air chamber being closed at its outer end and open at its inner, or nozzle, end, a fuel nozzle pipe arranged within and spaced from said steam nozzle pipe, a fuel line entering the outer end of the fuel chamber and a fuel pipe leading from the outer end of said last mentioned chamber and entering the outer end of the fuel nozzle pipe, a steam line entering the outer end of the steam chamber and a steam pipe leading from said last mentioned end of the steam chamber and entering the outer end of the steam nozzle pipe,

and separate means in the fuel and feed chamhers respectively for compelling the longitudinal flow of fuel and. steam back and forth from end to end of their respective chambers.

LILLARD B. HANCOCK.

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