JPS602412Y2 - Combustion tube of oil combustor - Google Patents

Description

[Detailed description of the invention] This invention relates to the combustion tube of an oil combustor, and in particular, the inner flame tube and the central tube, which have many small holes, are made of heat-resistant glass or the like to increase heat radiation to the outside. This invention relates to an improved structure of a combustion tube which is equipped with a molded heat-transmitting tube and has a red-hot net fixed to the upper part.

The present invention will be explained below with reference to the drawings. 1 is a combustion wick, 2 is a wick holding cylinder, 3 is a wick frame, 4 is a peripheral wall with many small holes 5, 5...
. . . The upper end of the inner flame tube is covered with a lid plate 7 having a flame expansion plate 6 attached to the upper surface.

Reference numeral 8 denotes a central cylinder provided at intervals so as to form a combustion chamber 9 on the outside of the inner flame cylinder 4, and has a large number of small holes 10, 10 in its peripheral wall.
...... is installed.

Reference numeral 11 denotes an outer cylinder provided at the outer lower part of the central cylinder 8, which is supported approximately concentrically with the inner and middle flame cylinders 4 and 8 by means of a cross pin 12, with a space provided therebetween. An abbreviated support ring 13 is fixed.

Reference numeral 14 denotes a heat ray transmitting tube placed on the support ring 13 so as to be located outside the inner and middle flame tubes 4 and 8, and is formed into a cylindrical shape from a heat ray transmitting material such as heat-resistant glass.

Reference numeral 15 denotes a cover fixed to the upper end of the central cylinder 8 and covering the upper opening between the central cylinder 8 and the heat ray transmitting cylinder 14, and a mounting cylinder that fits inside the central cylinder 8 and is fixed by spot welding or the like. Part 16
and an overhang having a truncated cross-section and having a cylindrical part extending outward so as to have a larger diameter than the inner diameter of the cylindrical part 16 and a horizontal part, all around the upper end of the mounting cylindrical part 16. 17, and a cover 18 which is integrally provided outward from the horizontal surface of the projecting part 17 and has a cross-sectional shape of 18 mm for covering and holding the upper part of the heat ray transmitting tube 14.

A plurality of L-shaped engagement holes 19 are formed in the cylindrical portion of the projecting portion 17 at predetermined intervals.

Reference numeral 20 denotes a glowing net, and a mounting ring 22 is attached to the lower edge of a hemispherical porous member 21 made of wire mesh or the like to be placed on the horizontal surface of 17 of the projecting portion. 22 is bent downward to form a hanging bent edge whose outer diameter is smaller than the inner diameter of the cylindrical part of the overhanging part 17 and whose inner diameter is equal to or larger than the inner diameter of the mounting cylindrical part 16. 23 are integrally formed.

When the bent edge 23 is fitted into the cylindrical portion of the overhang 17, the attachment ring 22 is placed on the horizontal surface of the overhang 17.

Further, the bent edge 23 is provided with a claw 24 projecting outward to be latched onto the engagement hole 19.

The structure of the present invention is as described above, and the projecting portion 17 extending outward is formed above the mounting cylindrical portion 16 of the cover 15 that is fixed to the upper opening edge of the central tube 8. When the body 15 is fixed to the central tube 8, the horizontal surface of the projecting portion 17 serves as a positioning stopper, making it easier to attach the cover 15 by spot welding, etc. Since the hanging bent edge 23 of the mounting ring 22 is configured to be located on the horizontal plane of the overhanging part 17 when the red-hot net 20 is fixed to the cover 15, the rising of the combustion flame is prevented by the hanging bent edge 23. Therefore, the porous member 21 of the red-hot net 20 can be evenly and uniformly heated.

Furthermore, the red-hot net 20 covers the claw 24 of the hanging bent edge 23 of the body 1.
By engaging with the engagement hole 19 provided in 5, it can be easily and reliably latched.

As described above, according to the present invention, since the projecting part is formed at the upper part of the mounting cylindrical part of the cover, the horizontal surface part of the projecting part becomes a positioning stopper when fixing the cover to the central cylinder, and the central cylinder The work of fixing the cover to the can be done easily.

Furthermore, since the hanging bent edge of the mounting ring attached to the periphery of the glowing net is positioned above the horizontal surface of the overhang and the glowing net is attached to the cover, the rising of the combustion flame is hindered by the hanging bent edge. Therefore, the net can be heated uniformly and good heat radiation without unevenness can be obtained.

Moreover, the strength of the mounting ring can be increased by the hanging bent edge, and a strong glowing net can be provided.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of an embodiment of the combustion tube of the oil combustor of the present invention, Fig. 2 is an enlarged view of the same main part, Fig. 3 is a partially cutaway perspective view of the cover, and Fig. 4 is a view of the incandescent net. It is a front view. 4...Inner flame tube, 8...Central tube, 14.
... Heat ray transmission tube, 15 ... Cover, 16.
...Mounting cylindrical part, 17...Protrusion part, 20
...Glowing net, 23... Engagement edge.

Claims (1)

[Scope of utility model registration request] An inner flame cylinder and a central cylinder having a large number of small holes, a heat ray transmission cylinder provided outside the central cylinder, a red-hot net located above the central cylinder, and an upper opening between the central cylinder and the heat ray transmission cylinder covered. and a cover, wherein the cover includes a mounting cylindrical part that fits into the central cylinder, a cylindrical projecting part having a horizontal surface extending from the top of the cylindrical part, and an external part extending from the projecting part. The mounting cylindrical part of the cover is fixed to the upper part of the central tube, and the upper part of the tube is held by the cover. A mounting ring is provided protrudingly on the periphery of the net to be placed on the horizontal surface of the overhang, and the ring has a hanging bent edge smaller than the inner diameter of the cylindrical portion of the overhang, and the bent edge A combustion tube for an oil combustor, wherein the glowing net is attached to a cover by fitting into the cylindrical part of the projecting part.