Patent GB-191123132-A (GB)
Title: Improvements in or relating to Vapour Burners for Steam Generators and the like.
Inventor: GALVAO MANUEL ANTONIO
IPC: F23D11/44
Filed: 1911-10-19
Granted: 1912-10-21
Abstract: 23,132. Galvao, M. A. Oct. 19, 1910, [Convention date]. No Patent granted (Sealing fee not paid). Vapour burners ; vaporizing - apparatus; burners, arrangements of.-A vapour burner for steam-generators &c. comprises a number of tubes 32 arranged side by side so as to leave air spaces between them, provided with gauzecovered tubular extensions 33, and connected at one end directly and at the other end through tubes 36 preferably of the same diameter, to the mixture distributing-box 35. The burner tubes may be arranged as a concave surface around a steam-generator body. In the Specification as open to inspection under Section 91 (3) (a) it is also stated that the tube 32 may be of circular or square section, and that the mixture of vapour and air is preferably formed in a tube in which the vapour nipple is supported by a spider, and to which the air may be supplied under pressure, two branching return-tubes supplying the mixture to the distributing-box. Also, the burner surface may be arranged to surround the boiler, or may form a convex, cylindrical, or other surface. Other forms of burner are also described. In one construction, Fig. 1, cancelled, vapour generated either in a vaporizer 7 of the kind described in Specifications 28,498/08, 19,671/10, and 1456/11, and comprising a box pierced by tubes 8 and fed with oil through a tube 2 filled with filtering-material and enclosing a valve 4 or in any other type of vaporizer, is delivered through the nipple 10 and mixes with air, introduced through the pipe 12, in the tube 11, whence it passes by a sharp bend 17 and distributing-box 16 to a number of parallel channels of V-shaped cross-section spaced apart for the admission of air to the flames which burn above gauzes 15. In a modification, Figs. 5 and 6, cancelled, for use with longer grates, the mixture is supplied to both ends of the channels 18, these being connected to two or more mixture distributing-boxes 21, 31, directly at one end, and, at the farther end, by bends 23 and tubes 22 which traverse the spaces between the channels. The channels slope downwards towards the distributing-boxes near which they are provided with openings 24 for condensation liquid which open into an inclined escape duct 25. The boxes 21, 31 are supplied through the branches 26, 30 of a mixing-tube 27. Vapour may be supplied to the burners, when a large number are employed, from a separate vaporizing-apparatus. In an arrangement of this kind. the burner may be arranged above a mixing-tube as in Fig. 1, cancelled, and comprise a flat cylindrical or other box provided on its upper surface with tubular gauze-covered extensions and traversed by vertical air-supplying tubes. The tubular extensions may be lengthened when the air-supply tubes are dispensed with. A further modification comprises a sinuous tube which decreases in cross-section and is provided with gauze-covered tubular extensions. In another construction, the burner comprises a U-shaped tube into the open ends of which jets of vapour are delivered, the parallel arms of the U-tube being connected by straight or curved tubes carrying tubular gauzecovered extensions. This subject-matter does not appear in the Specification as accepted.