Патент USA US2404468код для вставки
July 23, 1946. cfe. VOKES FFAL - Q FILTER FOR GASES ‘UNDER PRESSURE 2,404,453 ’ Filed Sept. 1, 1943 s 6 Q ' , l3 ,- I l2<¢ 7‘ - a / 1-,’. @3652 dawn/x254 Sin/(<26 Inventors ' Attorrvzey Patented July 23, ‘1946 , 1 ; :. ~ j 2,404,468 f, UNITED STATES PATENTJ’D F , FILTEIF P981655“ UNPERPRWSURE ' ices ' ear'aaniiiv'qté's'fana atria‘ will seat . »: -> leondea?nglandi Said Stokes assign"! to Yokes . in LOndOn’IEngIa’Dd" f I. . 1» .5 i I . 'Applic'ation September 1, 1943;»Serial‘No.1-500,874 ' r“ . ' I In Great Britain September 17, 1942 3 Claims. 1 (Cl. 183—49) 2 . expands in the head- of the ?lter and tends to. be cooled also by contact with the metal of the liquid products and solid bodies from air or other enclosure. The shield l-l de?ects the gases and gases of rather high temperature and under heavier bodies towards the outer wall, giving rather high pressure. The present invention is substantial cooling and moisture thrown out on ~ designed to provide a compact and convenient to the de?ector is also directed to the cylindrical device which will dissipate a considerable amount wall so that it ‘drains to the base of the casing. of heat and de?ect heavier solid particles and As the gases pass the periphery of the shield remove or absorb moisture before an inner ?lter H, the area becomes restricted and further ex wall is reached to eliminate to the necessary extent the remaining solid bodies; More es 10 pansion’ and cooling take place in the annular space surrounding the outer unit. The gas then pecially it is designed for vuse in combination passes through the absorptive material I3 and with a cordite‘ or vlike explosive'cartridge used (in a relatively dry state) through the porous to generate pressure to supply power for instance insert M into the central space and thence to a jack, or for performing‘ other useful work, often as stand-by or emergency equipment. The 15 through the apertures ‘4 in the upwardly extend ing tube 3 and so to the outlet 2, which is pref improved ?lter is intended to withstand the heat erably of the same or substantially the same area and pressure and to remove deleterious products There are cases where it is desired to remove of combustion, solid and liquid. , ‘as that of the inlet. A'drain cock IE or trap can > ' be used for withdrawing the moisture from the 1 ‘ container means to de?ect the entering products 20 bottom of the casing. We claim: from direct impact on the walls of a ?lter unit 1. In a ?lter designed more particularlyfor in the form of a basket packed with granules of treatment of relatively, high-pressure gases heat-withstanding absorptive material, and a charged with liquid, said ?lter comprising a cas unit of heat-resisting porous material through ing having an inlet, and an outlet for such gases, . which the gases afterwards pass before emerging an initially acting outer ?lter of a material from the outlet. , ' serving to materially absorb the water content The above and other parts of the invention of the gases passing therethrough and reducing are embodied in a typical form shown upon the the heat of such gases, and a ?nal acting inner accompanying drawing, the parts for which a monopoly is desired being those delimited by 30 ?lter unit of a material to remove particle content of such gases after passing through the. outer the claims. ?lter unit, the outer ?lter unit being spaced from The drawing is a vertical, section of a cylin the casing to provide a receiving, channel, the drical ?lter. ' g inner ?lter unit de?ning a central discharge area, A pressure resisting casing I has a central out let ‘2 at the bottom with an integral tube 3 ex- ‘J a tube extending throughout the central, dis The invention includes in a pressure resistin tending up from it with apertures 4>in its c,entral and upper part giving access from the central zone of the ?lter to the outlet. A cover 5 suitably charge area and open thereto, said‘ tube'opening to the casing discharge, and an impervious shield connected to and supported by the tube arranged - between the casing inlet and ?lter units and casing I has, a central inlet 8. Outer and inner 40 directing incoming gases to said receiving chan nel while preventing admission of the gas to the ?lter units are carried at the toprof the tube, outer ?lter unitirom the casing inlet. a screw 9 with an appropriate distance piece It! . 2. In a ?lter designed ‘more particularly for carrying an upper shield ll covering the tops of treatment of relatively high-pressure gases the units and securing the units in‘position to the top of the tube. The outer unit is in the 45 charged with liquid,.said ?lter comprising a cas ing having an inlet and an outlet for such gases, form of an annular basket l2 packed with an initially acting outer ?lter of a material serv- ~ granules l3 of heat-withstanding absorptive ma ing to materially absorb the water content of terial for instance silica gel or plaster of Paris. the gases passing therethrough and reducing the Similar material can be retained at the top and bottom of the cylindrical space enclosed by the 50 heat of such gases,~and a-?nal acting inner ?lter basket or these can simply be closed. The inner ’ unit of a material to remove particle content of_ such gases after passing through the outer ?lter unit can be a tubular insert H of suitable heat unit, the outer ?lter unit beingspaced" from the resisting porous material, possibly a ceramic ma clamped by bolts 6 and jointed .by ring _1 to the casing to provide a receiving channeLrthe inner terial, held between end caps I 5. Gas entering by the central inlet 8 at once 55 ?lter unit de?ning a central discharge area, va 2,404,468 t , 3 tube forming an integral part of the casing and extending throughout the central discharge area materiaI to remove particle content of such gases after passing through the outer ?lter unit,;the ‘ and open thereto, said tube opening to the cas ' ing discharge, and an' impervious shield arranged ' outer ?lter unit comprising a perforated basket directing incoming gases to said receiving chan vide va receiving channel, the inner ?lternunit and a ‘?lling of heat-withstanding absorptive between‘ the casing inlet and ?lter Iunits and 5 material being spaced from the casing to pro-‘ ' nel while preventing ‘admission of thegas to the outer ?lter unit from the casing inlet.‘ , 3. In'a l?lter designed more particularly for de?ning a central discharge area, a tube ex- I tending throughout the, central“ discharge area i and open thereto, said tube opening to the casing discharge, and an impervious shield arranged between the casingiinlet and ?lter units and casing having an- inlet and an outlet for such’ ‘ directing- incoming gases to’ said, receiving chan :treatment' of’ relatively’ high, pressure’ gases "charged with liquid; said’ ?lter comprising a] gases, an initially acting outer ?lter to materially - ' absorb the’ water content offthe gases“ passing nel While preventing admission of the gas to the ‘ outer'?lter unit from the casing inlet. therethrough and reducin'gathe ' heat of’ suchv l5 " gases, and a ?nal acting inner, ?lter unit of a ' CECIL GORDON 'VOKES. ‘ EDWARD YARTHUR STOKES.