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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 6. Отображено 6.
19-01-2017 дата публикации

GAS INJECTION METHOD AND APPARATUS

Номер: US20170014782A1
Автор: CONNERY Karen, FABIYI Malcolm E., Novak Richard A., Wattanapanom Witawat
Принадлежит:

A method and apparatus for injecting a gas into a liquid in which a rotating helical impeller within a draft tube submerged in the liquid creates a liquid flow within the draft tube. Gas bubbles are injected into the draft tube either above or below or alongside the helical impeller or in all three locations. The liquid is drawn into the draft tube with a superficial velocity greater than a substantially uniform terminal ascent velocity of the gas bubbles to allow entrainment of undissolved gas bubbles in the bulk liquid into the liquid being drawn into the draft tube. The gas bubbles are injected with a uniform diameter of between about 10.0 microns and about 1.0 millimeters. The small bubble size enhances the dissolution of the gas into the liquid and also allow the entrainment of the gas into the liquid being drawn into the draft tube. 1. An apparatus for injecting a gas into a liquid comprising:a draft tube adapted to be submerged in a liquid and having at least one inlet opening situated at one end of the draft tube and a discharge opening located at the other end thereof;a helical impeller located within the draft tube;a motor connected to the draft tube and a shaft projecting into the draft tube from the one end of the draft tube and connected to the helical impeller to rotate the helical impeller and thereby to create a liquid flow by drawing the liquid into the draft tube from the at least one inlet opening and discharging the liquid flow from a discharge opening; 'the gas bubble injector means configured to inject the gas bubbles with at least a substantially uniform diameter of between about 10.0 microns and about 1.0 millimeter to enhance the surface area of the gas bubbles and therefore, a dissolution rate of the gas within the liquid and to impart a buoyancy to the further part of the remaining portion of the gas bubbles that will result in at least a substantially uniform terminal ascent velocity thereof; and', 'means for injecting gas bubbles of the ...

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Номер записи: 1
04-06-2015 дата публикации

Flotation Machine Rotor

Номер: US20150151309A1
Автор: Luttrell Gerald, Miskovic Sanja, Noble Aaron, Ragab Saad, Said Abdel-Halim, Telionis Demtri, Yang Yihong, Yoon Roe-Hoan
Принадлежит:

A rotor for flotation machines or flotation cells of flotation machines includes blades that are configured to provide improved bubble flow and bubble generation performance while also reducing the power requirements for rotating the rotor to generate bubble flow within a tank of a flotation cell used to generate froth. Embodiments of the rotor may also be configured to be smaller than conventional rotor designs, which may help reduce the costs of manufacturing the rotor or flotation machines using such embodiments of the rotor. 114-. (canceled)15. A flotation machine comprising: a tank that is sized to retain a slurry comprised of a liquid mixed with at least one solid material;', 'a plurality of outer blades that extend outwardly from the body, each of the outer blades having an outer edge, the outer edge extending outwardly from an upper portion of the rotor to an outermost position located below the upper portion of the rotor, the outer edge extending inwardly from the outermost position to which the outer edge extends to a lower portion of the rotor, the lower portion of the rotor located below the outermost position to which the outer edge extends and is positioned inward relative to the outermost position of the outer edge.', 'a body having, 'a rotor positioned in the tank, the rotor rotated to agitate the slurry to facilitate formation of a bubbly flow used to generate a froth, the rotor attached to a column, the rotor comprising], 'at least one flotation cell, each of the at least one flotation cell comprising16. The flotation machine of wherein each outer edge defines a smooth outer surface of the blade and at least partially defines a shape of the outer blade such that the outer blade is generally half-heart shaped.17. The flotation machine of wherein the outer edge extends along a curved path defined by the formulas:{'sup': 6', '5', '4', '3', '2, 'y=10.974*x+10.512*x−43.377*x+28.863*x−4.6993*x+0.3068*x+0.5459 when x is valued from 0 to 0.7;'}y=1 when x ...

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Номер записи: 2
21-12-2017 дата публикации

Shaft-Mounted Fluid Transfer Assembly for a Disosable Bioreactor

Номер: US20170362555A1
Автор: Damren Richard Lee, Tuohey Colin R.
Принадлежит:

A fluid transfer assembly for single use bioreactors includes a fluid transfer housing that can be mounted to the impeller shaft using a bearing that places the fluid transfer assembly directly below the lowest impeller but allows the impeller shaft to spin inside independently of the fluid transfer assembly. A fluid conduit connects the fluid transfer housing to a port in the single use bag wall which allows fluids to be introduced into the sparger and which also helps prevent the fluid transfer assembly from rotating with the impeller shaft. 1. A fluid transfer assembly for a disposable bioreactor comprising:a fluid transfer housing having a housing body defining an input port, at least one outlet port and an elongate housing passageway extending in fluid communication therebetween;said housing body further defining an open shaft passageway extending therethrough; anda rolling element bearing, such as a roller bearing or a ball bearing, affixed within said shaft passageway, said rolling element bearing comprising concentric inner and outer bearing races and a plurality of rolling elements, such as rollers or balls, positioned between the inner and outer bearing races, the outer bearing race being affixed to the housing body and the inner bearing race including an inner surface defining a shaft aperture such that the inner race is affixable to an impeller shaft so that the shaft may rotate independently of said housing body.2. The fluid transfer assembly of claim 1 , further comprising a plurality of outlet ports in fluid communication with said housing passageway.3. The fluid transfer assembly of claim 1 , wherein said housing body includes opposed first and second planar major surfaces and a perimetrical side wall extending between said first and second major surfaces.4. The fluid transfer assembly of claim 3 , wherein said input port is defined by said perimetrical side wall of said housing.5. The fluid transfer assembly of claim 3 , wherein said first major ...

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Номер записи: 3
23-02-2016 дата публикации

Flotation machine rotor

Номер: US9266121B2
Автор: Aaron Noble, Abdel-Halim Said, Demetri Telionis, Gerald Luttrell, Roe-Hoan Yoon, Saad Ragab, Sanja Miskovic, Yihong Yang
Принадлежит: Virginia Tech Intellectual Properties Inc

A rotor for flotation machines or flotation cells of flotation machines includes blades that are configured to provide improved bubble flow and bubble generation performance while also reducing the power requirements for rotating the rotor to generate bubble flow within a tank of a flotation cell used to generate froth. Embodiments of the rotor may also be configured to be smaller than conventional rotor designs, which may help reduce the costs of manufacturing the rotor or flotation machines using such embodiments of the rotor.

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Номер записи: 4
23-05-2017 дата публикации

Gas injection method and apparatus

Номер: US09656218B2
Автор: Karen Connery, Malcolm E. FABIYI, Richard A. Novak, Witawat Wattanapanom
Принадлежит: Praxair Technology Inc

A method and apparatus for injecting a gas into a liquid in which a rotating helical impeller within a draft tube submerged in the liquid creates a liquid flow within the draft tube. Gas bubbles are injected into the draft tube either above or below or alongside the helical impeller or in all three locations. The liquid is drawn into the draft tube with a superficial velocity greater than a substantially uniform terminal ascent velocity of the gas bubbles to allow entrainment of undissolved gas bubbles in the bulk liquid into the liquid being drawn into the draft tube. The gas bubbles are injected with a uniform diameter of between about 10.0 microns and about 1.0 millimeters. The small bubble size enhances the dissolution of the gas into the liquid and also allow the entrainment of the gas into the liquid being drawn into the draft tube.

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Номер записи: 5
08-11-2016 дата публикации

Gas injection method and apparatus

Номер: US09486750B2
Автор: Karen Connery, Malcolm E. FABIYI, Mark Witawat WATTANAPANOM, Richard A. Novak
Принадлежит: Praxair Technology Inc

A method and apparatus for injecting a gas into a liquid in which a rotating helical impeller within a draft tube submerged in the liquid creates a liquid flow within the draft tube. Gas bubbles are injected into the draft tube either above or below or alongside the helical impeller or in all three locations. The liquid is drawn into the draft tube with a superficial velocity greater than a substantially uniform terminal ascent velocity of the gas bubbles to allow entrainment of undissolved gas bubbles in the bulk liquid into the liquid being drawn into the draft tube. The gas bubbles are injected with a uniform diameter of between about 10.0 microns and about 1.0 millimeters. The small bubble size enhances the dissolution of the gas into the liquid and also allow the entrainment of the gas into the liquid being drawn into the draft tube.

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Номер записи: 6