Abstract:
A high-efficiency gas dissolving device (10) which has a diameter-expanded nozzle with a collision member, wherein the shearing force and cavitation of water produced in the inner space of the diameter-expanded nozzle are utilized to efficiently atomize air, etc. This device (10) comprises a nozzle main body (11) having a water introducer (14), a gas feeder (16) and a diameter-expanded nozzle (17), and a collision plate (18) fixed to the nozzle main body. The water introducer (14) discharges high-pressure water, introduced through a water feeding port (12), from a discharge port (13). The gas feeder (16) is provided with a gas introducing port (15) in the water introducer (14) and mixes gas into the high-pressure water by ejector action. The diameter-expanded nozzle (17) positively generates cavitation in the inner space with a forwardly expanded diameter by the flow of high-pressure water discharged from the discharge port (13). The collision plate (18) is disposed with a gap defined in front of the diameter-expanded nozzle (17), so that the water mixed with fine air bubbles discharged from the diameter-expanded nozzle (17) is dispersed around.
Abstract:
The invention concerns a process and an apparatus for continuously producing chlorine dioxide, the process comprising the steps of: feeding chlorate ions, acid and hydrogen peroxide as aqueous solutions to a reactor; reducing chlorate ions in the reactor to chlorine dioxide, thereby forming a product stream in the reactor containing chlorine dioxide; feeding motive water (5) to an eductor comprising a nozzle (26); bringing the motive water to flow through the nozzle and causing it to flow further through the eductor in an at least partially spiral or helical manner; transferring the product stream from the reactor to the eductor and mixing it with the motive water and thereby forming a diluted aqueous solution containing chlorine dioxide, and; withdrawing the diluted aqueous solution containing chlorine dioxide from the eductor.
Abstract:
Solubilizing device of a gas into a fluid comprising the following components in combination: at least a first pipe section (1) convergent at the end thereof; a second pipe section (2) with a cross section smaller than that of the first pipe section (1), coaxial and integral thereto; a third pipe section (3) divergent for the entire length thereof, coaxial to the second pipe section (2), of a cross section intermediate between the ones of the first and of the second pipe section, the second and the third pipe section being separated by a mixing chamber, provided with means (5) and (6) , substantially slanted of a
Abstract:
A method of oxygenating wine (4), the method including the steps of: placing an oxygen supply tube (18) in the wine to be oxygenated; supplying gas containing oxygen at a controlled pressure to the oxygen supply tube; and permitting the oxygen from the gas to permeate through the oxygen supply tube to dissolve into the wine.
Abstract:
An apparatus for producing an aqueous carbonic acid solution which is equipped with a carbon dioxide dissolving vessel (3) and a circulating pump (1) and which circulates the water in a bath (11) by the circulating pump (1) and supplies carbon dioxide into the carbon dioxide dissolving vessel (3), to thereby dissolve carbon dioxide in water, characterized in that the circulating pump (1) is a volumetric metering pump having the ability of self-suction; a method for producing an aqueous carbonic acid solution which uses the apparatus; a method for producing an aqueous carbonic acid solution which comprises starting the formation of an aqueous carbonic acid solution and maintaining a desired concentration of an aqueous carbonic acid solution; an apparatus for producing an aqueous carbonic acid solution which is equipped with a means for adjusting a pressure of supply of carbon dioxide so as to achieve a desired concentration of carbon dioxide; an apparatus for producing an aqueous carbonic acid solution which automatically releases a drain to outside; and an apparatus for producing an aqueous carbonic acid solution which is equipped with a transportable bath with legs.
Abstract:
The invention concerns an oxidising method by wet process oxidation or ozonization of a liquid contained in a reactor. The gaseous roof (20) is sucked into the liquid, the part undissolved in the liquid is recuperated in the gaseous roof. The stirring means (2) generates a liquid flux immediately proximate to the end of the conduit (3) emerging into the liquid and generates a gas/liquid dispersion in the zone (15), wherein the liquid reacts with the gas, then transports and ejects said dispersion at its periphery, such that the gas is dissolved in the liquid in the zone (16) extending from the stirring means (2) to the surface of the liquid. The method is more particularly suitable for all oxidising processes using large amounts of oxygen or ozone. It is in particular used for oxidising paper-mill liquors.
Abstract:
An apparatus (10) for dissolving a gas into a fluid which may contain at least one dissolved gas. The apparatus (10) includes a first vertically oriented tube (2) defining a first inner space (32) and a second vertically oriented tube (12). The space between the first and second tubes is referred to as the second inner space (40). The gas is introduced through an inlet (18) into the second inner space (40). The apparatus (10) includes an acceleration device (20) for accelerating the flow of fluid through the second inner space (40). The apparatus includes a helix-shaped bubble harvester (22) which removes fugitive (undissolved) bubbles from the fluid flow and returns them to the second inner space (40) to increase the probability that those bubbles will be dissolved into the fluid.
Abstract:
The present invention is an apparatus suitable for dissolving a gaseous solute in a liquid solvent. The apparatus consists of an operative chamber (1), the interior of which is attached via a transfer duct (3) to a lute chamber (2) of lesser capacity than the operative chamber (1). An outlet duct (4) extends from within the lute chamber (2) at a point above the outlet of the transfer duct (3) to the exterior of the lute chamber (2). A solvent supply inlet (5) and a solute supply (6) are connected to the operative chamber (1) and pressurised solvent and solute sources. Both inlets (5, 6) are fitted with valves (7, 8) to control the in-flow of solvent and solute.