Showing papers on "Diffuser (sewage) published in 1981"

Ductless air treating device with illuminator

Abstract: A ductless air treating device having changeable air treating and lighting elements. A vaneless diffuser fan circulates air through the unit and cools the elements thereof. The unit is mounted directly to any standard electrical junction box or alternatively, to any standard electrical socket. Adjustable aligning spacers align the ductless ventilator with the mounting surface. The fan or the light may be operated individually or together simultaneously.

Infra-red hair dryer

Abstract: There is disclosed a hand held pan shaped, infrared hair dryer containing a perforated air diffuser which can function as an infrared reflector if the air diffuser is shiny. The air diffuser also protects a quartz tube infrared emitter. A fan rotated by a motor causes air to flow through the perforations in the air diffuser and out the air outlet in a uniform airflow. The perforations are patterned so the airflow is uniform and negative airflow is essentially avoided. The infrared radiation is emitted by a quartz tube containing a wire resistance heater.

High efficiency gas burner

Abstract: A burner assembly provides for 100% premixing of fuel and air by drawing the air into at least one high velocity stream of fuel without power assist. Specifically, the nozzle assembly for injecting the fuel into a throat comprises a plurality of nozzles in a generally circular array. Preferably, swirl is imparted to the air/fuel mixture by angling the nozzles. The diffuser comprises a conical primary diffuser followed by a cusp diffuser.

Infrared radiating burner article

Abstract: An infrared radiating burner article, for generating infrared radiation. The article is conectable to a system for mixing air and gas and supplying such air/gas mixture thereto. The structure includes a housing, having an opening extending therethrough through which the air/gas mixture may be fired in use. The structure further includes diffuser plates, for diffusing the air/gas mixture upon firing thereof through the housing opening so as to generate substantial pressure in such air/gas mixture. The diffuser plate is secured in the housing opening in the path of movement of the air/gas mixture upon firing thereof through the housing opening. The structure further includes a refractory grid, positioned in the housing opening in the path of movement of the air/gas mixture. The refractory grid is positioned at a point in the housing opening beyond the location of the diffuser plates. The air/gas mixture is fed through the refractory grid. The refractory grid includes a surface thereof facing outwardly from the housing. The air/gas mixture is ignited so as to burn on the outwardly-facing surface of the refractory grid, to generate infrared radiation. The refractory grid includes a substantial outwardly-facing surface area, so as to generate substantial amounts of infrared radiation, and a reverbatory screen for radiating infrared. The article enables the air/gas mixture to be fired through the refractory grid, under pressure generated by movement of the air/gas mixture through the diffuser plates, and the ignited air/gas mixture burns on the surface of the refractory grid and heats same so as to generate substantial amounts of infrared radiation at a particular gas pressure, in a rapid and efficient manner.

Bag-type filter apparatus with air diffuser having extended bag support

Abstract: A bag-type filter apparatus, whose gas-permeable tubular filter bags are cleaned by a periodic reverse purge flow of air directed into one end of the filter bag, has a combination filter bag support and air diffuser for each filter bag and which is characterized in that the support holds the filter bag in an open tubular configuration throughout the length of the filter bag, but the air diffuser is of shorter length than the filter bag to more effectively clean the filter bag.

The Hybrid Diffuser

Abstract: A vortex controlled diffuser has recently been reported [1], which attained high levels of pressure recovery within a short length. This diffuser has, however, achieved only a limited application because of its bleed-off requirements. The present work indicates a means by which this disadvantage can be overcome by using a hybrid arrangement of conventional and vortex controlled diffusers. The outcome was an efficient diffuser, half the length of the equivalent conical diffuser, and which would operate satisfactorily without either bleed-off or vanes projecting into the flow.

System for holding and transporting lobsters

Abstract: A specially adapted container for transporting lobsters or other marine organisms in an aerated water environment is in the basic configuration of a drum housing with removeable cover and vent hole. A low pressure air diffuser is positioned in the drum housing at the base for releasing diffuse low pressure air into sea water contained in the drum. Air coupling for delivering low pressure air to the diffuser is provided along with inlet and outlet openings for circulating fresh sea water in lieu of diffuser aeration. Different covers for the container may be provided for loading by the fisherman and for subsequent transport. The invention further includes a complete system for containerized transport of lobsters by truck or other vehicle in the aerated water environment provided by the containers. The method of the invention provides for handling and transporting lobsters in aerated sea water from a boat at the dock to a lobster pound or similar destination. The method may be completely automated as disclosed. Injury to the lobsters and consequent shrinkage of pounded lobsters live stored for long periods of time is effectively eliminated.

FLuidised bed diffuser for quenching glass - comprising two plates with staggered perforations and glass cloth, with layer of divided solid fixed to assembly

Abstract: In a fluidised bed for quenching glass sheets and consisting of a bed of particles fluidised uniformly with currents of gas, esp. air, a diffuser is utilised formed by a perforated support and a fixed layer of a divided solid wherein the loss of fluidisable change is less than 30%, pref. less than 17% of the total change in the reactor. The support is formed of at least 3 elements, an upper widely perforated plate, a glass cloth and a lower plate also widely perforated, coupled together. The fluidised bed is simpler, less expensive, and contrary to prior art introduces a much smaller loss of change than the previously (above 60%) allowing the system to operate with air which is simply ventilated.

Clamp for bounce-flash apparatus

Abstract: A clamp for a flash gun is provided which can be slipped on and off the gun and which has a slot therein whereby a bounce-flash reflector can be retained in said slot. In accordance with one embodiment of the invention, a second, opposed slot is provided so that one slot is adapted to retain a reflector and the opposite slot is adapted to retain a diffuser.

Swirler assembly for a vorbix augmentor

Abstract: An improved swirler assembly prevents flow separation in the diffuser secn. An annular swirling layer of air surrounds a linear jet with mixing occurring between these air flows prior to the diffuser section. A center tube through the swirler section provides the linear jet which mixes with the swirler flow in a mixing area prior to the diffuser section.

Water level indicator having a remote and a local readout display

Abstract: A water level indicating apparatus (10) has an optical system (22) for establishing an optical signal indicative of water level which signal is split by a beam splitter (18) to transmit the majority of the optical signal to a fibre optic cable (16) and to reflect a part of the signal to a proximately located (13) glass diffuser (14) The cable (16) extends to a matte screen (12) at a remote location (11) to thus provide a remote (11) optical signal as well as local (13) optical signal indication of the water level

Bag-type filter apparatus.

Abstract: The cleaning of a tubular filter bag (14) is significantly enhanced by the provision of an air distributor pipe (23) extending into one end of the filter bag and longitudinally along the interior thereof, with the air distributor pipe having a plurality of air outlet openings (24) for distributing compressed air within the interior of the filter bag A hollow diffuser tube (40) extends longitudinally within the filter bag in surrounding relation with the air distributor pipe, this diffuser tube having perforations (41) for diffusing and further distributing throughout the filter bag the compressed air which is discharged from the air distributor pipe

Liquid fuel combustor

Abstract: PURPOSE:To make it possible to miniaturize and to surely mix fuel gas with air by a structure wherein a diffuser panel having a structure which makes the flow of gasified fuel once turn back in the direction of a mixing tube and, after that, spread to the outer peripheral part of a straightening vane, is provided between the mixing tube and the straightening vane. CONSTITUTION:The liquid fuel combustor concerned 10 consists of a nozzle 12 to jet vaporized fuel, a mixing tube 16 to mix the vaporized fuel with air, a straightening vane 20 to straighten the flow of said mixture and a flame port plate 21, all of which are arranged coaxially, and a diffuser panel 22 having a structure which makes the flow of gasified fuel once turn back in the direction of the mixing tube 16 and, after that, spread to the outer peripheral part of the straightening vane 20 and being provided between the mixing tube 16 and the straightening vane 20. Under the above-mentioned constitution, the mixing of fuel gas and air entering the mixing tube 16 is accelerated and the sure mixing of the fuel gas and the air can be realized by means of a diffuser panel 22, which is provided between the mixing tube 16 and the straightening vane 20. Further, mixing distance can be reduced due to the diffuser panel 22, resulting in allowing to make a combustor main body thinner and smaller.

Organismic treatment for sewage

Abstract: PURPOSE:To perform stable biological treatment and back-washing treatment by performing aerobic microbe treatment by a packed layer at upper part than a diffuser in a tank with a packed layer for contact with microbes and filtration at the lower part and then by extracting and cleaning the packing material intermittently CONSTITUTION:Feed water 1 is supplied to packed tank 3 through feed pipe 2 Inside the tank 3 packing material 4 are packed so as to sandwich the diffuser 5 connecting with gas blast pipe 5' for air or oxygen, etc The layer at upper part than diffuser 5 provides the microbe treating while the lower layer performs filtration, and treated water 8 enters treated water tank 10 through treated water pipe 9 After a certain time, an organism film sticks to the upper part of the packed layer and the quantity of passing water decreases For this purpose, the inflow of feed water 1 is stopped and pump P is pnt into operation to lead the water 8 to be treated at the lower part of packed layer 3 This back-washing water extracts and leads the slurrified packing material to cleaning tank 16 via pipe 15 Here, it is stirred by stirrer 17 to remove the organism film On the other hand, the packing material as much as or more than the amount of the extraction is supplied into the lower part of tank 3 by supplier of packing material 19

Oxidation processor for waste water

Abstract: PURPOSE:To increase the processing capacity of the waste water and then obtain the treated water having a low concentration from the organic waste liquor of a high concentration through the treatment by only one bath, by providing the catalytic oxidation layer having a circular cross section which is formed by the upright tube bundles and then rotating the catalytic oxidation layer. CONSTITUTION:When a treatment is given to the waste water led into the outer barrel 8 through the untreated water inlet 15, the partial oxygen in the air jetted through the diffuser tubes 13a and 13b is mixed into the waste water within each block and then dissolved there. And the most part of the air supplied from the tubes 13a arrayed radially becomes bubbles to ascend within the tube bundle 3 right above the tube 3. The rising current of water is produced in the gap between the upright tube bundle 3 and the outer wall and by the air jetted from the tube 13b, and thus a catalytic oxidation is carried out for the organic substance in the perfect mixture state. Furthermore, the tube bundles through which both the rising and falling currents pass can be changed successively since the bundle 3 is rotating. Thus the blocking of the tube path can be prevented.

Aeration method of deep layer and aeration tank using the same

Abstract: PURPOSE:To attain to enhance aeration capacity and to reduce a power cost by blowing a high concn. oxygen gas into a deep layer right below an air blowing part to carry out aeration while a liquid to be treated in a tank is stirred by air blowing. CONSTITUTION:If air is injected from an air diffuser 5, a liquid 2 to be treated is raised in an interior of a tank main body 1 and, after flowed over a baffle plate 3, turned to downward direction and recirculated into the tank main body 1. If a high concn. oxygen gas is blown into a raised stream of thus recirculated liquid 2 to be treated from an air diffuser 7, the oxygen gas is raised while stirred by the liquid 2. In this time, the oxygen gas is dissolved in the liquid 2 efficiently corresponding to a weight of a liquid pressure in a deep layer to aerate said deep layer.

Removing device for sand contained in miscellaneous waste water

Abstract: PURPOSE:To draw off sedimented sand efficiently through a sand draw-off pipe while preventing the sand from consolidating by injecting air to the vicinity of a sand intake port of a sand intake pipe provided in a sand settling chamber, the intake port opening into the bottom part of the chamber. CONSTITUTION:The sand 22 contained in the miscellaneous waste water introduced into the sand-settling chamber 3 via an inlet port 2 is settled at the bottom part of the chamber 3. The air fed through an air feed pipe 9 is discharged from jet holes 6 of an air diffuser pipe 5 and is jetted into the sand 22 on both sides of a cover plate 7 provided at the upper part of the diffuser pipe 5, thereby stirring the sand and removing the suspended solids and the like adhered to the sand. On the other hand, by an ejecting action of the air supplied into the sand draw-off pipe 11 through an air feed pipe 12, the sand 22 is drawn off via the sand intake port of the sand intake pipe 4 together with the waste water and is fed into a separation chamber 16 through the draw-off pipe 11. Then, sand 19 is in the separation chamber 16, the waste water separated is caused to flow down into the settling chamber 3 via a waste-water outlet port 18 and is discharged into a digestion chamber via a discharge port 15 together with the waste water in the chamber 3.

Treatment for organic waste water

Abstract: PURPOSE:To purify org. waste water efficiently by subjecting said water to biological treatment and filtration treatment simultaneously in a treating tank which is partitioned to two tanks. CONSTITUTION:A treating tank 1 is partitioned to two tanks 3, 4 by means of a partition wall 2, and a bulkhead 5 is suspended in one tank 3. A biological membrane fixing material 10 is disposed between the bulkhead 5 and the partition wall 2, and packings 13 are packed in the other tank 4. The waste water introduced through a pipe 11 is entered into the material 10 by the ascending flow by the air bubbles from an air diffuser 7, and receives bilogical treatment there. Thence, part of the treated waste water again contacts the air from the air diffuser 7 as shown by the arrow directions C, D and circulates in the material 10. The other part passes through the packed layer and is filtered, after which it is discharged.