摘要:
On décrit un élément de remplissage en forme de selle (10) destiné à être utilisé dans une tour vapeur/liquide, ledit remplissage comprenant un corps arqué doté de part et d'autre de brides verticales (12, 13) généralement parallèles. Le corps arqué comporte une pluralité d'éléments arqués à nervures intérieures (16) et extérieures (18) alternantes, généralement parallèles, s'étendant transversalement entre les brides. Le procédé de fabrication de l'élément de remplissage consiste à refendre une feuille de métal plane afin de former des éléments à nervures, à replier la feuille pour former les brides verticales et les éléments arqués à nervures, et ensuite à leur conférer la forme arquée du remplissage.
摘要:
Improved gas burner apparatus and methods of burning fuel gas-air mixtures are provided whereby flue gases having low NO X contents are formed. The burner apparatus includes a refractory burner tile (30) having an air discharge opening (34) therein and a wall (36) surrounding the opening which extends into the furnace space and provides a mixing zone therein. At least one passage (54) is formed in the burner tile which opens into the mixing zone and fuel gas is jetted through the passage whereby flue gases are drawn therethrough and a fuel gas-flue gases mixture is discharged into the mixing zone. The fuel gas-flue gases mixture is swirled in the mixing zone and mixes with air therein, and the resulting mixture is discharged and burned in a primary reaction zone in the furnace space.
摘要:
A variegated density mist eliminator pad for use in gas-liquid contacting devices for the removal of mists from a mist-containing gas stream which pad comprises a plurality of fibrous elements such as a knitted or woven mesh having open areas for the flow of the gas stream therethrough and characterized by defined adjacent regions of different, i.e. high and low, fiber density with the direction of density variation generally perpendicular to the direction of gas flow, the high density region within the pad permitting enhanced drainage of coalesced liquid, and a method of preparing the high and low density regions through a nesting and non-nesting relationship of fibrous layers.
摘要:
A gas liquid contact tray and method of using the tray and columns containing the tray, which gas liquid contact tray is characterized by high tray efficiency and capacity and a wide turndown ratio, and which tray comprises: a tray deck (14, 16, 18) containing a plurality of openings therein, such as valves, (20, 22, 24) to provide for the intimate contact of an upwardly flowing gas stream through the openings with liquid on the tray deck; one or more downcomers (26, 28, 30), to provide a passageway for the transportation of liquid from the tray deck to a lower tray deck or lower portion of the column; and mass-transfer packing materials (32, 34, 36) in the passageway of one or more of the downcomers, to provide for the intimate gas liquid contact of the upwardly flowing gas stream and the downwardly flowing liquid stream in the passageway of the downcomer.
摘要:
An expanded metal random packing (26) for use in gas-liquid or liquid-liquid contact devices comprises a longitudinal strip (10) (see Fig. 1) of expanded metal having a plurality of generally uniformly disposed and defined spaces (20) defined by a plurality of struts (12), the strip having a one (22) and an other (24) end (16), the ends (22, 24) of said longitudinal strip (10) being disposed inwardly about a vertical axis shown in broken line to form a partial or fully enclosed body of expanded metal the body constituting the random packing.
摘要:
An improved mist eliminator (20) for use in a column for removing liquid from a gas stream. The mist eliminatorcom- prises a plurality of spaced apart chevron-type baffle members, the baffle members defining a plurality of gas flow paths therebetween and transversely disposed to the axis of the column. The upstream leading edges of the chevron-type baffle members present a plurality of downwardly extending drainage teeth (42) thereon to promote the rapid drainage of coalescent liquid from the chevron-type baffle members thereby increasing the critial or maximum allowable velocity of the gas stream and the gas capacity of the chevron-type baffle members and decreasing the pressure drop across the mist eliminator.