Abstract: A range hood for a kitchen range or other similar appliance is disclosed. The range hood is adapted to be coupled to a blower to draw the contaminated effluent stream from the range into the hood. The effluent stream is drawn through a substantially horizontal perforated liquid support or impingement tray that is filled with a working liquid, and is then passed through a high-efficiency mist eliminator. The range hood offers a substantially straight airflow path from a point just inside the inlet to the outlet. The range hood also has a low profile, and offers direct access to its interior components for easy inspection and cleaning.

Abstract: A range hood for a kitchen range or other similar appliance is disclosed. The range hood is adapted to be coupled to a blower to draw the contaminated effluent stream from the range into the hood. The effluent stream is drawn through a substantially horizontal perforated liquid support or impingement tray that is filled with a working liquid, and is then passed through a high-efficiency mist eliminator. The range hood offers a substantially straight airflow path from a point just inside the inlet to the outlet. The range hood also has a low profile, and offers direct access to its interior components for easy inspection and cleaning.

Abstract: A wet scrubber for scrubbing a fluid. The wet scrubber may include an inlet for receiving the fluid and a vortex chamber, in communication with the inlet, for causing at least a portion of the fluid to circulate. The wet scrubber may also include at least one diffuser for exhausting the fluid from the vortex chamber, the diffuser configured to substantially prevent fluid exhausted from the diffuser from recirculating back into the diffuser. A paint booth and a method of scrubbing a fluid are also provided.

Abstract: A range hood for a kitchen range or other similar appliance is disclosed. The range hood is adapted to be coupled to a blower to draw the contaminated effluent stream from the range into the hood. The effluent stream is drawn through a substantially horizontal perforated liquid support or impingement tray that is filled with a working liquid, and is then passed through a high-efficiency mist eliminator. The range hood offers a substantially straight airflow path from a point just inside the inlet to the outlet. The range hood also has a low profile, and offers direct access to its interior components for easy inspection and cleaning.

Abstract: Disclosed herein is a direct methanol fuel cell system. More particularly, the present invention provides a water controller system constructed such that water generated from a cathode of the direct methanol fuel cell system and carbon dioxide and an unreacted methanol solution generated from an anode of the direct methanol fuel cell system are introduced into the water controller system, the carbon dioxide is discharged out of the water controller system, and the methanol solution is circulated to the corresponding electrode so as to reuse the methanol solution, and a fuel cell system including the water controller system. The water controller system for fuel cells according to the present invention has the effects of reusing water and an unreacted methanol solution discharged from the fuel cell, minimizing the amount of methanol evaporated and discharged, and accurately controlling the water level of the water controller.

Abstract: An extraction device, preferably a scrubbing device, for a gas comprising a diffuser for transmitting a gas through a diffusing zone of the diffuser and means for jetting a stream of liquid over the whole of the diffusing zone such that the gas is entrained by the stream of liquid. A method is also provided, including jetting a stream of liquid over the whole of a diffusing zone of a diffuser and transmitting a gas through the diffusing zone into contact with the steam of liquid.

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: Gas scrubber, with at least one drop separator level which spans a cross section of the gas scrubber, the gas scrubber comprising at least one edge rest and a plurality of carrying beams, spanning the cross section, for the mounting of drop separators which jointly delimit a free flow cross section of the gas scrubber, at least 95% of the free flow cross section being designed with throughflow drop separators. This is achieved preferably in that drop separators are used having a plurality of drop separator lamellae which are arranged at an inclination to one another and are fixed by means of at least two end plates of unequal level or non-parallel.

Abstract: Provided is an exhaust gas treating tower in which exhaust gas flow velocity is increased more than a prior art case so that exhaust gas treating efficiency can be enhanced or the exhaust gas treating tower can be made compact if equivalent performance is to be maintained. Also, an exhaust gas treating tower ensuring a liquid recovery is provided. In an exhaust gas treating tower 10A, liquid columns C are generated and also a liquid drop generating member 20 is provided to thereby generate liquid drops M therearound to be floated. Also, liquid is spouted from spray nozzles to thereby generate liquid films F in area different from the liquid columns C. In an exhaust gas treating tower 110, a liquid drop eliminator 120 is provided upstream of a mist eliminator 118. Interval P1 of collecting plates 121 of the liquid drop eliminator 120 is made larger than interval P2 of collecting plates 119 of the mist eliminator 118.

Abstract: A dehumidification and energy recovery device includes a casing defining an interior that is divided into two vertically stacked sections, a channel extending vertically between the sections and forming upper and lower openings, absorption devices arranged inside the channel corresponding to the sections respectively, and a tank arranged below the lower opening of the channel and containing a liquid that is driven by a pump to a position above the upper opening of the channel to drop onto and flow through the absorption devices. Intake airflow and exhaust airflow respectively pass through the sections, contacting the liquid flowing through the channel in a cross-flow fashion, whereby exchange of humidity and heat is performed between the airflows and the liquid to effect dehumidification and energy recovery with a simple structure and low costs.

Abstract: Particulates are removed from a gas stream by contact with a liquid. The gas stream is conveyed through an inlet channel, towards a liquid reservoir which is located below a perforated sheet. Gas flowing through holes in the sheet creates a pressure drop between the inlet channel and an outlet area above the sheet. This pressure drop draws liquid up from the reservoir, through a relatively narrow liquid transfer channel, so that the liquid covers the sheet. Gas flowing through holes in the sheet therefore encounters a layer of liquid located immediately above the sheet. Particulates in the gas are captured by the liquid in this layer. The device requires no pump for moving the liquid through the system, the liquid being transferred solely as a result of the pressure drop induced by the flow of gas.

Abstract: An apparatus for contacting large volumes of gas and liquid together on a microscope scale for mass transfer or transport processes wherein the contact between liquid and gas occurs at the interfaces of a multitude of gas bubbles. Multiple porous tubes assembled in a bundle inside a pressure vessel terminate at each end in a tube sheet. A thin film helical liquid flow is introduced into the inside of each porous tube around and along its inside wall. Gas is sparged into the porous media and the liquid film so that an annular two phase flow with a uniform distribution of tiny gas bubbles results. The gas flow is segregated from the liquid flow without first passing through the porous media and through the liquid film. Nozzles at the lower end of the tubes divert liquid flow to a vessel and redirect the gas flow in a countercurrent direction.

Abstract: A scoop is used to collect a liquid slurry upstream of an internal collection tank. The scoop is in fluid communication with a downcomer, which receives at least part of the collected slurry, thereby maintaining a continuous flow of liquid slurry through the scoop to prevent plugging. Collected slurry can be removed for treatment from the scoop or the downcomer. In an application to a wet flue gas desulfurization (FGD) scrubber, the scoop collects an effluent slurry of partially reacted liquid scrubbing reagent and scrubbing byproducts before they drain into an internal reaction tank. Partially reacted liquid scrubbing reagent and scrubbing byproducts can therefore be withdrawn for treatment before the addition of fresh reagent alters the pH of the treatment stream.

Abstract: An exhaust cleaning device for removing a portion of carbon containing molecules from exhaust. The exhaust cleaning device includes a tubular member which is elongate and has a first end and a second end. The first and second ends are placed in communication with an exhaust system. The tubular member has a middle section and two legs. A cleaning assembly for cleaning the exhaust includes a plurality of apertures extending through the middle section of the tubular member. A housing is attached to an outer surface of the bottom half of the middle section and covers the apertures such that the apertures extend into the housing. A container is extendable into the housing. A filter member is removably positioned in the container. A water pump sprays water into the tubular member such that the water binds to carbon containing molecules in the exhaust and deposits the molecules in the filter.

Abstract: A gas-liquid contactor for removing gases and particulate matter from flue gases produced by processing operations of the type carried out in utility and industrial plants. The contactor is generally an open spray absorber having a spray tower (110) whose walls (114) form a passage within the tower (110). Flue gases are introduced into the tower (110) so as to flow vertically upward or downward through the passage. Disposed within the passage are heads (116) for introducing a liquid (118) into the passage such that the liquid (118) contacts the flue gases. A portion of the liquid (118) contacts the wall (114) of the tower (110), such that the portion of the liquid (118) flows downwardly along the wall (114). The tower (110) is equipped with a deflecting device (122) disposed on the wall (114) for deflecting the portion of the liquid (118) away from the wall (114), and thereafter reintroducing the portion of the liquid (118) into the passage so as to contact the gases flowing through the passage.

Abstract: The present invention is a microchannel mass exchanger having a first plurality of inner thin sheets and a second plurality of outer thin sheets. The inner thin sheets each have a solid margin around a circumference, the solid margin defining a slot through the inner thin sheet thickness. The outer thin sheets each have at least two header holes on opposite ends and when sandwiching an inner thin sheet. The outer thin sheets further have a mass exchange medium. The assembly forms a closed flow channel assembly wherein fluid enters through one of the header holes into the slot and exits through another of the header holes after contacting the mass exchange medium.

Abstract: Static mixers are arranged so that its longitudinal direction is substantially vertical. A liquid supply mechanism supplies the liquid containing impurities from the upper end of the static mixer into the static mixer. A gas supply mechanism supplies gas from the lower end of the static mixer into the static mixer. The static mixer is fabricated so that one or more mixing elements comprising a passage tube through which fluid can pass and one or more spiral blades arranged inside the passage tube are, continuously or through one or more spacers, arranged in the longitudinal direction thereof. The liquid drops down inside the static mixer and the gas rises up inside the static mixer, so that the two are subjected to gas-liquid contact inside the static mixer.

Abstract: The present invention is a microchannel mass exchanger having a first plurality of inner thin sheets and a second plurality of outer thin sheets. The inner thin sheets each have a solid margin around a circumference, the solid margin defining a slot through the inner thin sheet thickness. The outer thin sheets each have at least two header holes on opposite ends and when sandwiching an inner thin sheet. The outer thin sheets further have a mass exchange medium. The assembly forms a closed flow channel assembly wherein fluid enters through one of the header holes into the slot and exits through another of the header holes after contacting the mass exchange medium.

Abstract: In order to bring a gas and a liquid into contact with one another, for example so as to exchange, remove or add components or calorific value present in the gas and/or liquid, the liquid is guided along one or more walls which are provided with small openings, and the gas is guided into the liquid, via these openings, by allowing this liquid to flow along the walls or by moving the walls along the liquid. In order to increase the contact time between gas and liquid, the gas is guided into the liquid in a direction which essentially corresponds to the direction of movement of the liquid with respect to the wall which is provided with openings. A venturi effect is generated in the region of the openings, since subatmospheric pressure is produced at the location where the openings open into the stream of liquid.

Abstract: A natural gas dehydrator and process for dehydrating natural gas employ a longitudinal horizontal pressure vessel containing a threshold level of liquid desiccant. A plurality of spaced-apart baffles divides the vessel into a series of pneumatically discrete compartments. The baffles have a plurality of apertures which define a sinusoidal gas flow path through the vessel into and out of the liquid desiccant from the inlet to the outlet. Each of the baffles also has an opening in its lowermost portion which define a linear primary liquid desiccant flow path through the vessel from the inlet to the outlet. The baffled vessel is fixed within another longitudinally horizontal pressure vessel so as to define a chamber therebetween. Dried gas and wet desiccant are discharged from the inner or baffled vessel into the chamber where they are gravity separated, the dried gas flowing to an outlet on top of the outer vessel and the wet desiccant flowing to a sump at the bottom of the outer vessel.

Abstract: A water/air treatment system consisting of at least one water/air treatment unit, each water/air treatment unit including a water trough, a water pipe having a top end connected to a water source and a bottom end dipped in the water trough, and an expansion pipe suspending in the water pipe, the expansion pipe having a top end connected to a forced air source, a bottom end dipped in the water trough, and a plurality of air holes through the periphery for permitting forced ozone from the forced air source to flow out of the expansion pipe for mixing with water from the water source in water pipe so as to kill microbes and to exchange heat.

Abstract: An improvement in a center inlet type scrubber that retrofit the scrubber with a perforated tray made up of rectangular or partially rectangular sections supported on beam supports in the annulus of the scrubber. The supports can be modified to form turning vanes or additional turning vanes can be employed. One or more perforated trays may be installed in the annulus to help correct the problem.

Abstract: A gas and liquid contact apparatus is disclosed having a vertically orientated containing vessel including a sidewall. At least one grid assembly is positioned within the containing vessel transverse to and concentric about a vertical center line of the vessel. Liquid and gas are injected into the vessel at specified flow rates whereby a fluidized zone results. Various techniques are disclosed for rotating the fluidized zone resulting from the interaction of the gas and liquid in the direction of the Coriolis rotational effect at the geographical point of use of the apparatus.

Abstract: The present invention provides a gas-liquid contact apparatus which can make the equipment more compact and reduce the cost while achieving high gas-liquid contact efficiency. In the apparatus of the present invention, an oxidation tank (2) is installed in proximity to an absorption tower (1), and an absorbing fluid (3) is stored in this oxidation tank (2). The level H of the absorbing fluid (3) is determined so as to be above the position of nozzles (7), whereby the absorbing fluid is spouted upward from the nozzles (7). Flue gas is introduced into the absorption tower (1) from a flue gas inlet section (8) and made to flow upward at a high velocity, so that the peaks of the spouted streams are raised above level H. The absorbing fluid (3) is caught by catcher device (11) installed at a position above level H, and returned to the oxidation tank (2) through a circulation pipe (12). An air pipe (20) is connected to the circulation pipe (12) so as to suck in air.

Abstract: A gas liquid contact structure having a plurality of corrugated woven wire sheets alternated with rigid support members to separate and support the woven wire sheets. The vees or peaks of the corrugations are aligned and oriented in the same direction with the rigid support members separating and preventing the corrugations from nesting together.

Abstract: A contraflow gas/liquid contactor tower having a gas diffuser to provide uniform gas flow in the tower, a set of partial helical membrane sheets running generally parallel to the tower axis and the gas flow, supported between an upper liquid distributing hub and a lower support hub, and a mist extractor pack with liquid direction control.

Abstract: A water/air treatment system includes at least one water/air treatment unit, each water/air treatment unit including a water trough, a water pipe having a top end connected to a water source and a bottom end dipped in the water trough, and an expansion pipe suspending in the water pipe, the expansion pipe having a top end connected to a forced air source, a bottom end dipped in the water trough, and a plurality of air holes through the periphery for permitting forced ozone from the forced air source to flow out of the expansion pipe for mixing with water from the water source in water pipe so as to kill microbes and to exchange heat.

Abstract: A clog-resistant inlet structure for introducing a particulate solids-containing and/or solids-Forming gas stream to a gas processing system. The structure is composed of a gas-permeable wall enclosing a gas flow path, and an outer annular jacket circumscribing the gas-permeable wall to define an annular gas reservoir therebetween. The clog-resistant inlet structure is constructed, arranged, and operated so as to introduce a gas into the annular gas reservoir during the flow of the particulate solids-containing and/or solids-forming gas stream to a gas processing system through such inlet structure at a pressure sufficient to combat the deposition or formation of solids on the interior surface of the gas-permeable wall. The inlet structure may further optionally include a downstream annular section in which the wall surface bounding the gas stream is blanketed with a falling liquid film, to combat solids deposition or formation on the blanketed wall surface.