Abstract: The present invention relates to a nozzle unit for the supply of gas into a liquid comprising two or more annular nozzles one after the other in the direction of flow. The nozzles are angled to give a restriction in the direction of flow, and each nozzle overlaps the following nozzle. Each nozzle has one or more apertures for the supply of gas at the overlap.

Abstract: An apparatus and method for mixing gas and liquid including a dome, lower housing, aerator device and flotation device, wherein intermeshed rotating sets of discs operate on parallel shafts driven by variable speed drives, and strakes are radially mounted on the discs to carry liquid up into a mixing area and to carry air and liquid down into a mixing area resulting in a shear force that drives air into the oxygen depleted liquid. The dome and lower housing create an air tight space, wherein the barometric pressure is raised by a blower, in order to pop foam bubbles and allow for optimum mixing of air into the oxygen depleted liquid, and intake and discharge openings of the lower housing are positioned beneath the liquid line, thereby preventing the escape of foam, noise and odorous gases into the local environment.

Abstract: A high-velocity water misting gun with a very high-speed radial inflow hydraulic turbine mounted on the same shaft with an axial flow air compressor wheel compressing air discharged at high velocities through an exhaust air nozzle. A preferred embodiment utilizes a plastic-metal hydraulic turbine wheel in which the plastic portion of the wheel other than blades is solidly anchored within a metal containing wheel. High pressure water drives the hydraulic turbine and provides water lubrication to high-speed bearings supporting a rotating shaft. The preferred embodiment utilizes hybrid bearings (part hydrodynamic, part hydrostatic) suitable for low-viscosity fluids such as water. In the preferred embodiment all of the water discharging from the hydraulic turbine wheel is channeled through a hollow shaft to a set of high-speed, shaft-mounted rotating orifices providing a fine water mist discharging into a high-velocity air flow provided by the axial-flow compressor.

Abstract: The invention relates to a fluid distributor for a material and heat exchange column, comprising a series of adjacent parallel vertical walls (11) which define alternate gas and liquid volumes, whereby some of the vertical walls are separated by horizontal bottom walls, provided with a line of holes and at least one section of each vertical wall is provided with a line of openings (12, 12A), formed in the upper part of the vertical wall and whereby first openings (12) have a first length towards the horizontal wall and second openings (12A) have a second length towards the horizontal wall, the second length being greater than the first.

Abstract: A fan includes a motor; a front end of a rotary shaft of the motor having an eccentric wheel; a periphery of the blade being installed with a protection web frame; a moisture generator installed at one side of the motor; an interior of the moisture generator having a plug; one end of the plug resisting against a lateral surface of the eccentric wheel; the eccentric wheel serving to drive the plug moving reciprocally in a plug chamber so as to suck water into a moisture generator; then the water is pressured to be sprayed out. Operation of the fan will drive the moisture generator to actuate so as to generate moisture for reducing temperature.

Abstract: An apparatus for exposing air to an aromatic substance (26) at a uniform level of aroma for a certain period of time without using gas, fire, or applied electric heat source. The invention has an aromatic solution tank (31) on which sits a lid (30) under which is mounted a motor (32) engaged by a micro-switch (34). Disposed on the motor shaft is an impeller (36) generating a guide air flow through a chamber of free space in the tank via an intake housing (35), inlet (21a) and outlet (25b) holes in the lid, and attached a draw tube (37). Rotation (20) of the draw tube delivers a 360 degree sheet of aromatic solution (24) across flowing air (22), air which is then discharged (25a) to environment. Consequently, air flowing through the swirl of aromatic solution is exposed at a uniform level for a certain period of time.

Abstract: A fluid distribution tray that is capable of providing for the distribution of a fluid across a surface area of a bed of contact material contained within a vessel, wherein the fluid distribution tray includes lost area due to a support element upon which the fluid distribution tray is supported within the vessel, wherein the fluid distribution tray includes a plurality of fluid flow means distributed across the fluid distribution tray in a distribution pattern providing for a high density distribution of fluid flow means within a compensation area that is adjacent and near to the lost area and a low density distribution of fluid flow means within the remaining useable area of the fluid distribution tray. Also included is a method providing for a uniform fluid distribution within a vessel.

Abstract: An aerator for mechanically inducing near laminar flow and controlled turbulence in a liquid waste treatment lagoon or pond. A blower, blower mount platform, diffuser modules, aeration manifold, aeration chamber, an adjustable, telescoping aeration chamber extension, baffles, and buoyancy apparatuses attach to a frame. The diffusers are located beneath the surface of the body of liquid at a predetermined, fixed depth. The blower supplies air to the diffusers and liquid-bubble mixture is released into an aeration chamber where artificial aeration is maximized. The mixture then rises through the aeration chamber. Bubble dissipation and flow conditioning baffles force bubbles to coalesce and vertically dissipate into the atmosphere. The liquid flows over the top of the baffles and a flow manipulation rim to radiate outward and parallel to the pond surface with minimum turbulence at an optimum flow discharge rate. The aerator provides optimized oxygen transfer at low energy costs.

Abstract: A UV disinfection humidifier has its disinfection properties improved by recirculating the water through the UV treatment unit and/or guiding the water along the UV tube in a helical path.

Abstract: The invention relates to a method and a device for foaming glue for the production of wood-based sheets. Gluing substance and gas are fed (1,2) into the foaming device through nozzles (3,4), which are directed to mix the gluing substance and gas to be fed to form an essentially homogenous mixture prior to foaming. After this the gluing substance is foamed mechanically in the foaming chamber (5) with the aid of gas.

Abstract: A dew point cooling tower system utilizes cooled water produced by the system to reduces the wet bulb temperature of ambient air before the ambient air is directed through fill in the cooling tower. One preferred heat exchanger utilized in the cooling tower is an air-to-liquid heat exchanger including a plurality of spaced apart plate units each having a pair of adhesively bonded spaced apart plates having a liquid flow channel formed intermediate the adhesively bonded plates.

Abstract: A gas-liquid contacting tray suitable for horizontal mounting in a normally vertical column, which tray comprises a tray plate with substantially circular circumference and having top and bottom surfaces, which tray plate is provided with passages for gas between the bottom and the top surface, and on which tray plate two semi-circular tray sections are defined by a virtual diametrical line of the tray plate; and a total of three downcomers for guiding liquid from the top surface of the tray plate to below the tray, each downcomer extending from an inlet opening arranged in the tray plate to a downcomer outlet opening below the tray, wherein two of the downcomers are arranged in the corners of one of the semi-circular tray sections, and wherein the third downcomer is arranged on the other tray section substantially along a radius of the tray that is perpendicular to the diametrical line.

Abstract: A humidifying fan includes a base, a water swinging device and a fan device. The base has a water tank for storing an appropriate amount of water or other liquids, and an atomized water hole. The water swinging device has a power element and a water swinging fan connected with a suction tube extending in the water tank and having slots in its inner wall and plural water exits. When water is sucked up to spray through the exits, it is dispersed by the swinging fan to get atomized. But, a large number of droplets without atomized are to attach on a fur comb set around the swinging fan and then drop in the water tank. The fan device consisting of blades and power element is to blow and spread the atomized water for cooling air.

Abstract: A mixing element, which is produced at low cost, has high mixture agitation effectiveness, and is easily made large, and a static fluid mixer using the mixing element are provided. Further, a gas-liquid treatment apparatus with high treatment ability is provided. A mixing element 1 includes: a cylindrical passage tube 2 trough which fluid flows; a plurality of spiral rightward rotation type first blades 3 formed of a perforated object, which are provided in the passage tube 2; a first inner cylindrical tube 5 shaped like a cylinder and disposed inside the blades 3; a plurality of spiral rightward rotation type blades 6 provided in the inner cylindrical tube 5; and an opening 9 formed in the axial center portion of the blades 6. A static fluid mixer is formed by using at least one mixing, element 1 mentioned above.

Abstract: A distribution tray for distribution of vapor and liquid across a vessel has a plurality of downcomers extending above the tray and having open upper and lower ends. A liquid conduit for each downcomer has an inlet, a section for upward liquid flow, and openings in fluid communication with the downcomer. A reduced flow area section and a device for improved liquid spread may be used at the outlet of the downcomer. During operation, vapor enters the upper downcomer end. Liquid collected on the tray flows through the inlet, upward through the conduit, and through the openings into the downcomer, where the liquid is mixed with downwardly-flowing vapor. The two-phase stream passes the reduced flow area section with increased velocity for improved dispersion of the liquid before the stream flows through the device for improved liquid spread, and then exits through the lower end of the downcomer.

Abstract: A water curtain is provided which includes a drape assembly having a drape hood, material drape, float overflow shut-off, collection return, a drainage line solenoid which preferably is electric, a drainage line, a filter, drape solenoid which preferably is electric, a drape feed line, a pump, a pump power line, an on/off switch to a power source which preferably is a ground fault circuit interrupter (GFCI) power line for obvious safety concerns, a feed line, and a shutoff valve. The water supply may be electrically controlled by solenoid valves and has a float overflow shutoff control in some embodiments.

Abstract: The invention relates to a device for mixing and distributing a gas and a liquid, arranged upstream from a granular bed. The device includes a substantially horizontal lower plate, said lower plate being equipped with a plurality of risers evenly distributed over the surface of said plate, each riser having an upper part and a lower end communicating with the underside of said plate, the upper part of the risers being provided with at least one lateral orifice. A substantially horizontal upper plate is provided above which the gas and the liquid are supplied, wherein said upper plate rests on risers extending upwardly from the lower plate.

Abstract: An apparatus for the gasification or aeration of liquids. Elongated aeration elements are connected to a distribution conduit and have an essentially rigid support tube having a lengthwise rounded groove about which is disposed a membrane of elastomeric material. Compressed gas introduced between the support tube and membrane escapes via slits in the membrane. An elastically deformable flange of a cylindrical portion of a fitting with a plastic semi-rigid saddle portion is disposed between the distribution conduit and one of the aeration elements, and is disposed in a bore in the conduit. The fitting has an essentially flat saddle portion, one side of which rests against the outer surface of the conduit, and the other side of which rests against an end of the aeration element. A hollow bolt is securely connected to the aeration element and is guided through a bore in the fitting into the interior of the conduit, where it is provided with apertures.

Abstract: Containers for providing vapor phase reactant from liquid sources include bubbler designs and designs in which carrier gas flows over the liquid surface. Among the bubbler arrangements, a bypass conductance is provided to release excess pressure from the gas volume inside the container, or an enlarged bubbler tube is provided with a volume sufficient to accommodate all possible liquid backflow without having the liquid exit the container. Among the overflow designs, flow dividers provide a tortuous path for the gas to increase the time exposure of carrier gas packets to the evaporating liquid surface. The flow dividers can be microporous to encourage capillary action, thereby increasing the evaporating surface. The tortuous gas flow path can be separated from the liquid phase by a breathable semi-porous membrane that permits vapor phase reactant to pass through but prohibits liquid from passing in the other direction.

Abstract: An improved random packing is the subject of the present invention. The packing element comprises a generally spherically shaped member which can be a perfect sphere, an ellipse, or some variation on either of the foregoing. The sphere is a hollow body having inner and outer surfaces with a plurality of openings passing through the body. A hypothetical axis passing through the sphere defines circular openings at both ends and the openings in between these two ends are generally elongated. The solid walls which form the sphere are of sufficient thickness so as to accommodate a plurality of indentations, some of which are formed in the solid walls and other indentations being formed coincidentally with the elongated openings between the solid wall sections. The indentations are characterized by curvilinear surfaces so that the total surface area presented by the inner surface (S1) and all of the remaining surfaces (S2) are at least twice the area of solid sphere of the same diameter with no indentations.