GB217240A - Improvements in steam generators - Google Patents

Abstract

217,240. L¾pez, S. H. June 7, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Liquid and pulveritlent fuel furnaces. - A steamgenerator, horizontally or vertically arranged, is provided with a cylindrical water-jacketed combustion chamber 23, Fig. 1, to the end of which liquid or pulverulent fuel is supplied by a burner 92. The top and bottom of the combustion chamber are lined with refractory material 24, 25 and air under pressure is supplied through perforated plates arranged at the sides of the combustion chamber to effect combustion of the fuel. A fan 83 delivers air for combustion through a conduit 84 and valve-controlled branch conduits 85, 86 to chambers 37, 40 respectively, Figs. 4 and 5, situated outside the water jacket 27 from which chambers it passes through tubes 81, 82 to chambers enclosed by the casing 21 of the fire-box and the perforated plates 71, 77. The apertures in the plates 77 are more numerous than those in the plates 71 as shown in Fig. 1. The plates 71, 77 engage with recesses formed in upper and lower supports bolted to the casing 21. The outer end of the combustion chamber is conical and is provided with a door comprising a hinged member 94, Fig. 7, to which is secured by a universal joint 99 the closure member 98 protected by a shield 100. The door is secured on its seat by a bolt 101 and nut 102 engaging with a lug 96 on the member 94. The boiler 3 is provided with a perforated tube plate 6 and communicates with a steam and water-space 14 connected at its upper part by a pipe 30 to a moist-steam space 29 which is also in communication with the water jacket 27 surrounding the combustion chamber.