US2670192A - Insulating encasement - Google Patents

Description

Feb. 23, 1954 G. P. REINTJES INSULATING ENCASEMENT 3 Shets-S heet 1 Filed Sept. 4, 1951 Zmventor Feb. 23, 1954 G. P. REINTJES INSULATING ENCASEMENT 5 Sheets-Sheet 2 Filed Sept. 4, 1951 Z'snventor Gearqe R -S's,

(Ittomeg Feb. 23, 1954 G. P. REINTJES 2,670,192

INSULATING ENCASEMENT Filed Sept. 4, 1951 3 Sheets-Sheet 5 Zhwentor Geovc e P, Rein]? s attorney Patented Feb. 23, 1954 2,670,192 ms upggr no ENGASEME-NT G e P.- Rein-ties, Kansas Q t application September 4, 1951, Serial No. 245,031 1 Qia m- 86%44) This invention is partly directed to supporting structures for burners as used in open hearth furnaces to protect the burner and mount same as a beam, either cantilevered at one end, or supported at both ends or at intermediate points as may be desired. With this arrangement the use of a heavy or massive bridge wall for the support burners is avoided, since such A further object of the invention is to provide a protection of the character mentioned which may be water and/ or air cooled, and may also be used as a means of introducing secondary air into a furnace if desired.

With the general objects named in view and others as will hereinafter appear; the invention consists of certain novel and useful features of construction and organization of parts as hereinafter described and claimed; and in order that it may be fully understood, reference is to be had to the accompanying drawings, in which:

Figure 1 is a broken perspective of one end of an open hearth furnace equipped with a burner supported and protected by the construction of the invention.

Figure 2 is an enlarged section through the burner encasement shown in Figure 1 with the burner removed.

Figure 3 is a perspective view of shown in Figure 2.

Figure 4 is a perspective view of a tile support as used in Figures 2 and 3.

Figure 5 is a view of the clips for supporting the pipe shown in Figure 2.

Figure 6 is a fragmentary longitudinal section through the open burner end of the protecting beam shown in Figures 1 and 2, to illustrate the use of ipe and nipples for water circulation.

Figure 7 is a view similar to Figure 6, but shows a manifold rather than pipe nipples.

In the said drawings, where like reference characters identify corresponding parts in all one of the tile 9f fi ures refe enge ma be me t Figure :1 to. il et ate the b a embqd meat of the nt nt: tion, as applied to an open hearth furnace, in which, I is an outer wall and 2 the inner wall of one end of an open hearth.

The hot gases flow from the hearth chamber 3 over the wall 2 below the roof 4, and turn down through passage 5 into a checker chamber 6. On the reverse cycle, heated air is delivered up through passage 5 and is discharged into the hearth chamber 3. Positioned at opposite ends of the hearth (one end only being shown), are burners which alternately fire as above described, and it has been common practice to build costly and heavy bridge walls for the support of these burners. These heavy walls more or less confine the gases or restrict the area through which they flow and consequently the velocity of the gases is increased to such point that the deposit ened. These solids are carried over into the checker work chamber.

In the present invention, a gun type burner protected against the heat of the furnace by a refractory encased hollow beam 1 hereinafter particularly described, site ends by an outer and inner wall of the furnace, such construction being relatively streamlined and of small area. Interference with the flow of gas or air is therefore very slight. The protecting encased beam may also be used as a means of feeding secondary air to the furnace, if desired, and the burner or element being protected may be retracted from the encasement without dismantling of any of the parts. It is to be noted that this protective encasement is not limited in use to burners, but may have an extensive application in the protection of any element which must project into or span a heated chamber and be insulated therefrom.

The preferred construction involves a doublewalled beam, the inner and outer Walls being respectively numbered I! and I8. The element to be protected, such as a burner, not shown, is mounted within inner wall l1. As shown in Figure 2, the outer wall It of the conduit carries a series of perforated fins 22 having openings through which liquid circulating pipes 23 are threaded through a series of spaced tile hangers 24 having tile engaging heads 25 to support the tile l9. With this arrangement an air lane 26 is provided around the tile and pipes. The ends of the pipe 23 may be connected by nipples 21 to the .spacebetween thedouble-walled beam to 3 provide for circulation of cooling water or the like as shown in Figure 6, or the alternative construction of Figure 7 may be used. where a manifold 28 is connected to the pipes and doublewalled beam.

From the above description, it will be apparent that I have produced a construction embodying all of the features of advantage set forth as desirable, and while I have described and illustrated the preferred embodiment, it is to be understood that I reserve the right to all changes within the spirit and Scope of the appended claim.

I claim:

A cooling housing comprising a double-walled beam, a series of pipe concentricallyarranged around and connected at one end to the space between the inner and outer walls and externally paralleling and spaced from the outer wall, means to circulate cooling medium through the pipes and space between the double walls. hangers carried by the pipe, and tile extending in an entire circle around and carried by said GEORGE P. REINTJES.

References Cited in the file of this patent UNITED STATES PATENTS Number Number 2 105 Name Date Boland Aug. 18, 1914 Gast Apr. 29, 1930 Downs et al Dec. 23, 1930 Schaefer Aug. 4, 1931 Gregor Apr. 3, 1934 Cress Apr. 22, 1937 Creighton Mar. 4, 1941 Schmidt Sept. 27, 1949 FOREIGN PATENTS Country Date Great Britain 1914

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