CH386080A - Combustion chamber for oil burner central heating boiler - Google Patents

Description

Combustion chamber for oil-burner central heating boiler The present invention relates to a combustion chamber for an oil-burner central heating boiler, characterized in that it consists of a horizontal tubular element comprising at 1 behind an altar extending upwards and open to the front.

The appended drawing represents, by way of example, one form of execution and some variants of the combustion chamber, object of the invention.

fig. 1 shows in exploded perspective the three elements making up the chamber according to the invention.

fig. 2 shows the whole in perspective after joining the elements.

fig. 3 is a sectional view of the chamber placed in a central heating boiler.

Figs. 4 and 5 represent respectively seen from the rear and seen from the side a removable element with inclined shutters.

fig. 6 shows in perspective the combustion chamber equipped with this shuttered element.

Figs. 7 and 8 show respectively seen from the rear and seen from the side a removable element with a perforated plate.

fig. 9 shows in perspective a combustion chamber equipped with the Perforated Plate element.

Referring to the drawings, the chamber is made up of three Parts 1, 2 and 5 of which the first two semi-tubular constitute respectively the Sole and the top of the combustion chamber while the third realizes the altar of said room.

According to one embodiment, the semi-tubular elements 1 and 2, obtained from a sheet of cut and bent sheet metal, are of unequal lengths and each have two diametrically opposed side edges 3 and 4 allowing their connection by screwing of inside the boiler.

The altar 5, obtained in the same way, is fixed at the rear end of the cylindrical chamber thus formed and, for this purpose, its sides 6 have flaps 7 at right angles allowing it to be joined to the ends of the Borders 4 , of the lower element 1, which exceed those 3 of the shorter upper element 2.

In addition, the posterior part of the altar 5 is extended downwards by a semi-circular zone 8 whose first contour is pressed against the edge of the lower element 1 which it mouths.

The assembly thus constituted is placed inside any central heating boiler and rests, by its side edges 3 and 4, generally on the grid supports 5 provided in the boilers.

In the case of a special oil-fired boiler. steel, which WestRTI ID="0001.0267"WI="5" HE="4" LX="1410" LY="1980"> not intended for the use of coal, the combustion chamber will then rest on prefabricated supports at request, keeping the same arrangement inside the boiler.

In this design of cylindrical chamber, the air-gas mixture is fully achieved and this results in the elimination of unburnt, an attenuation of the noise of the carburization and, finally, the elimination of the stalling of the flame at the outlet of the or burners.

According to a first variant, the opening of the altar 5 is partially closed with the aid of a removable element, formed by a frame 9 with shutters 10, established in refractory steel sheet and presenting, on the one hand, a semi-circular lower cutout 11 to be able to adapt to the upper part 2 of the tubular element and, on the other hand, two side strips 12 engaging between the sides 6 of said altar and being there maintained by screwing or riveting.

The flaps 10 can eire oriented angularly to form oblique planes, of varia ble inclination, constituting elements for braking the outlet of the hot gases.

According to a second variant, the removable element is constituted by a perforated plate 13 also made of refractory steel and having, as before, a lower semi-circular cutout and two side strips allowing it to be fixed on the rear and upper part of the the combustion chamber.

It is obvious that the first number of perforations and/or their section may vary depending on the type of burner used.

It should be noted that the removability of the chamber described allows it to be cleaned and checked periodically and, if necessary, to be removed from the furnace of the boiler if the fuel used runs out, the boiler then being able to be fed as in the first pass.

With a view to increasing the radiation surface and the rigidity, the tubular chamber can be made either with undulations in its wall or with a device of fins.

The cylindrical part can be perforated to allow the partial passage of the combustion gases.

Claims (7)

CLAIM Combustion chamber for an oil-burner central heating boiler, characterized in that it is constituted by a horizontal tubular element comprising at the rear an altar extending upwards and open towards the front. SUB-CLAIMS 1. Combustion chamber according to claim, characterized in that the tubular element is cylindrical and comprises resting means inside the hearth of the boiler. 2. Combustion chamber according to claim and sub-claim 1, characterized in that the tubular element is formed of two semi-cylindrical shells, of unequal lengths, with lateral edges which are connected by bolting along a plane of diametral joint, said Borders allowing to bear in the first hearth of the boiler on the existing grid supports. 3. Combustion chamber according to claim and sub-claims 1 and 2, characterized in that the altar, of parallelepiped shape, constitutes the rear of the combustion chamber and in that , the lower end of each of its sides is curved so as to fit over the edges of the lower element of said combustion chamber while the bottom of its rear part has a shapeRTI ID="0002.0271" WI="23" HE="4" LX="1521" LY="1095"> half-circular to apply against the edge of this element that it Blocks. 4. Combustion chamber according to claim, characterized in that the opening towards the front of the altar is partially closed off by a removable plate with adjustable inclination flaps. 5. Combustion chamber according to claim, characterized in that the opening towards the front of the altar is partially closed off by a perforated plate. 6. Combustion chamber according to claim, characterized in that it has a corrugated wall. 7. Combustion chamber, according to claim, characterized in that it comprises fins. B. Combustion chamber according to claim, characterized in that it is perforated.