WO2013065032A4 - Procédé d'extraction de composants individuels d'un mélange gazeux et dispositif de mise en œuvre de celui-ci - Google Patents

Procédé d'extraction de composants individuels d'un mélange gazeux et dispositif de mise en œuvre de celui-ci Download PDF

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Publication number
WO2013065032A4
WO2013065032A4 PCT/IB2012/057725 IB2012057725W WO2013065032A4 WO 2013065032 A4 WO2013065032 A4 WO 2013065032A4 IB 2012057725 W IB2012057725 W IB 2012057725W WO 2013065032 A4 WO2013065032 A4 WO 2013065032A4
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WO
WIPO (PCT)
Prior art keywords
flow
components
gas mixture
central
peripheral
Prior art date
Application number
PCT/IB2012/057725
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English (en)
Russian (ru)
Other versions
WO2013065032A8 (fr
WO2013065032A3 (fr
WO2013065032A2 (fr
Inventor
Александр Васильевич АГАФОНОВ
Владимир Борисович ВЫСКРЕБЦОВ
Дмитрий Витальевич ЕВДОЩУК
Сергей Иванович ЕГОРОВ
Михаил Александрович ИЛЬЯШОВ
Олег Денисович КОЖУШОК
Александр Федорович НЕМЧИН
Александр Викторович СНЕГОВСКИЙ
Георгий Тимофеевич ТОДОРАШКО
Юрий Васильевич ФИЛАТОВ
Евгений Николаевич ХАЛИМЕНДИКОВ
Original Assignee
Приватное Акционерное Общество "Донецксталь" - Металлургический Завод"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Приватное Акционерное Общество "Донецксталь" - Металлургический Завод" filed Critical Приватное Акционерное Общество "Донецксталь" - Металлургический Завод"
Publication of WO2013065032A2 publication Critical patent/WO2013065032A2/fr
Publication of WO2013065032A3 publication Critical patent/WO2013065032A3/fr
Publication of WO2013065032A8 publication Critical patent/WO2013065032A8/fr
Publication of WO2013065032A4 publication Critical patent/WO2013065032A4/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/06—Construction of inlets or outlets to the vortex chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C2003/006—Construction of elements by which the vortex flow is generated or degenerated

Definitions

  • An interrelated group of inventions relates to technique of separation of gas mixtures into components and can be used in coal industry in the preparation of captive mine methane-air mixtures for its disposal in cogeneration plants.
  • the disadvantage of this method is its low productivity and economic inexpediency: to obtain recovered energy is needed, along with the extracted small amount light components of the gas mixture - methane, burn expensive aviation fuel, as the main fuel of the turbine.
  • the disadvantage of this method is the low efficiency separation of components due to the presence in the proposed straight-through vortex tube unsteady axial vortex cord that turbulents the flow and reduces the effect of separation of components.
  • the specified method provides for an unstable mode of operation with a tangential value component of the spin speed close to some critical value, when the separation of the flow is practically absent.
  • Under the critical speed in the description of this method refers to the minimum peripheral speed of the full twisting the gas mixture, which ensures rotation in the peripheral the zone of the flow of the heaviest molecular weight components of the gas mixtures.
  • the light components which consist mainly of methane
  • the turbines are fed for disposal, and the peripheral flow, with heavy fractions are additionally separated at the narrow end of the vortex tube.
  • the narrow end of the vortex tube is equipped with an annular collector chamber, which connected through longitudinal slots in the vortex tube body to the internal cavity pipes, due to which part of the heavy components gets into the collector chamber, including suspended dust.
  • Lighter components consisting of refined air and nitrogen together with water vapor are released into the atmosphere.
  • a disadvantage of the known device is low energy efficiency due to significant compression energy consumption mixtures for the operation of the turbine, the predominant part of which, after expansion in the pipe emitted into the atmosphere, as well as its low productivity, which determined by the technical capabilities of the counterflow vortex tube.
  • the central flow component selector consists of two coaxial parts with the formation of an adjustable annular gap between them, through which selection is carried out [4];
  • the vortex tube body consists of two coaxial parts with the formation of an adjustable annular gap between them, which surrounded by an annular collector chamber with a component selection pipe peripheral flow [5].
  • the first of the group of inventions is based on the task of improving the method of extracting individual components from gas mixtures, which provides increased separation efficiency of components in once-through vortex tubes while maintaining their high productivity and economic feasibility of use by eliminating the possible the emergence of common and local sources of turbulent gas mixture flow in the pipe.
  • the second of the group of inventions is based on the task of improving the device for extracting individual components from gas mixture by replacing the design of a straight-through vortex tube and samplers mixture components in swirling central and peripheral flows, which will eliminate the general turbulence of the swirling flow and local turbulence in the selection zones, and thereby increase extraction efficiency individual components from the gas mixture in a straight-through vortex tube at maintaining its structural simplicity and high productivity.
  • the first task is solved in such a way that in the method of extracting individual components from a gas mixture, which includes swirling the flow in the swirl, separation of the swirling flow in direct-flow vortex tube into two flows: peripheral, with a predominance in it heavy components and central, with a predominance of light components and extraction of components through adjustable taps of divided flows in accordance with the invention swirling the flow is carried out with the acceleration of the flow to velocity, the tangential component of which exceeds the minimum circumferential the speed of full swirling of a gas mixture of a given composition and physical the parameters of its state by an amount sufficient to separate the mixture into peripheral and central flows, and the very separation of the swirling flow into peripheral and central flows occur in an annular channel in which the axial zone is freed from the flow and at the outlet of which the components of one of streams are partially extracted during partial braking of the rotation of this stream and separating the component selection zone from the swirling flow.
  • the second task is solved in such a way what's in the device for extracting heavy components from the gas mixture, which includes a swirl flow of the gas mixture, a straight-through vortex tube, where there is a separation of the swirling flow of the gas mixture into two streams: peripheral, with the predominance of heavy components in it and central, with the predominance of light components in it and a sampler of heavy gas components mixtures from the peripheral flow in the form of an annular collector chamber connected through the longitudinal slots in the body of the vortex tube with an internal cavity of the pipe, according to the invention, the swirl consists of a multi-auger screw with a central body, which when twisting compresses and accelerates the movement of the gas stream mixture, and behind the central body for the flow of a swirling flow formed the annular channel with the help of a cylindrical coaxial with it rods, while at the exit from the annular channel a sampler of heavy the components of the mixture from the peripheral flow, before which for braking peripheral flow rotation, longitudinal ribs are installed with a
  • Comparative analysis of the claimed design with the closest prototypes shows that it provides aerodynamic the flow conditions of the gas mixture in the once-through vortex tube, which reduce the turbulence of its flow along the entire pipe (elimination of region of flow of the zone of occurrence of an unsteady axial vortex cord), and in the zone of selection of the components of the gas mixture by separating this zone from swirling flow.
  • FIG. 1 in FIG. 1 - the claimed device for extraction heavy components of the gas mixture from the peripheral stream, longitudinal incision
  • FIG. 2 is a section A - A of the drawing of FIG. one;
  • FIG. 3 in FIG. 3 - the claimed device for extraction light components of the gas mixture from the central stream, longitudinal section;
  • FIG. 4 section B - B drawing of FIG. four;
  • FIG. 5 mine preparation scheme methane-air mixture to its disposal in cogeneration plants with the use of the claimed devices.
  • the claimed method is implemented in this way.
  • the gas mixture stream containing components with different molecular weight twist with acceleration of its flow in the swirl, on the output of which is the tangential velocity component at the periphery the swirling flow exceeds the minimum rate of full swirling gas mixtures of a certain composition and physical state parameters by sufficient for the separation of the flow into two: peripheral, with the predominance of heavy components in it and the central one, with the predominance in it light components.
  • extraction device from a gas mixture of heavy components includes a housing 1, a swirler in in the form of a multi-auger screw 2 with a central body 3, to which coaxially attached to a cylindrical rod 4, which together with the inner surface body 1 of the vortex tube forms an annular channel of length L.
  • a housing 1 a swirler in in the form of a multi-auger screw 2 with a central body 3, to which coaxially attached to a cylindrical rod 4, which together with the inner surface body 1 of the vortex tube forms an annular channel of length L.
  • l ⁇ L Starting from the cut I-I, which is at a distance l within the annular channel (l ⁇ L), mounted on the pipe body 1 longitudinal ribs 5 with a height that increases with the flow and the sampler of heavy components in the composition longitudinal slots 6, an annular collector chamber 7 and an outlet pipe 9.
  • Longitudinal slots 6 in the body of the vortex tube are surrounded by a cylindrical shell 8, which is installed coaxially with the body of the vortex tube 1
  • FIG. Z and 4 device for extraction from a gas mixture of light components includes a housing 1, a swirler in in the form of a multi-auger screw 2 with a central body 3, to which coaxially attached cylindrical rod 4, which together with the inner surface building 1 forms an annular channel of length L.
  • a housing 1 which is at a distance l within the annular channel (l ⁇ L)
  • a cylindrical rod 4 longitudinal ribs 5 with a height that increases with the flow
  • a sampler of light components consisting of a pipe 10
  • An annular gap 11 is surrounded by a cylindrical shell 12, installed coaxially with the body of the vortex tube 1 and which separates the zone selection of light components from the free space of the annular chamber.
  • MVS For a stable and economically viable production of heat and electricity in cogeneration gas piston units MVS is required with a methane concentration in the range of 35 ... 40% at humidity not more than 80% and in small quantities a prechamber gas with a combustible component does not less than 85 ... 90% for ignition of the MVS in the pistons while in the captive mine MVS methane content is 20 ... 25%, and humidity, after passing through vacuum pumping stations reaches 100%.
  • the gas mixture in the rotational movement is located in circular layers with different content of components in the order of increasing their content in each subsequent layer in the direction from the axis vortex flow rotation and, as a result, two of the above flow: peripheral, with the predominance of heavy components in it and central, with the predominance of light components in it.
  • Selected methane with a concentration of up to 85 ... 90% accumulates in receiver 18 for use as a prechamber gas during the operation of cogeneration gas piston units.
  • Device Operation Process for extraction of light components 15 from a gas mixture is regulated by valves 24, 25, 26 and 27 using an automated control system, composed which includes gas analyzers (not shown).

Landscapes

  • Sampling And Sample Adjustment (AREA)
  • Industrial Gases (AREA)
  • Cyclones (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

L'invention a pour objet : un procédé et un dispositif d'extraction de composants individuels d'un mélange gazeux. Domaine d'utilisation : la technologie de séparation de mélanges gazeux; l'industrie minière pour la préparation de mélanges méthane-air des mines de charbon en vue de leur utilisation. Essence de l'invention: un procédé d'extraction de composants individuels de mélanges gazeux qui consiste à créer une turbulence dans un écoulement, à séparer l'écoulement tourbillonnaire en deux écoulements rectilignes: à savoir, un écoulement périphérique ayant une prépondérance de composants lourds et un écoulement central ayant une prépondérance de composants légers, et à extraire les composants par des tuyaux de dérivation réglables en vue de former des écoulements séparés, ledit procédé étant caractérisé en ce qu'une turbulence est créée dans l'écoulement de façon à accélérer ce dernier jusqu'à une vitesse présentant une composante tangentielle supérieure à la vitesse périphérique minimale du tourbillonnement complet du mélange gazeux, et l'écoulement tourbillonnaire est séparé en un écoulement périphérique et un écoulement central dans un canal annulaire dans lequel la région axiale est exempte d'écoulement et au niveau de l'orifice d'évacuation (5) duquel les composants de l'un des écoulements sont partiellement extraits lorsque la vitesse de rotation de l'écoulement en question diminue partiellement. L'invention concerne également des dispositifs destinés à la mise en oeuvre dudit procédé d'extraction de composants légers et lourds d'un mélange gazeux.
PCT/IB2012/057725 2011-11-03 2012-12-26 Procédé d'extraction de composants individuels d'un mélange gazeux et dispositif de mise en œuvre de celui-ci WO2013065032A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UAA201112928 2011-11-03
UAA201112928A UA99241C2 (uk) 2011-11-03 2011-11-03 Спосіб вилучення окремих компонентів з газової суміші і пристрій для його здійснення (варіанти)

Publications (4)

Publication Number Publication Date
WO2013065032A2 WO2013065032A2 (fr) 2013-05-10
WO2013065032A3 WO2013065032A3 (fr) 2013-07-04
WO2013065032A8 WO2013065032A8 (fr) 2013-09-06
WO2013065032A4 true WO2013065032A4 (fr) 2013-11-28

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UA (1) UA99241C2 (fr)
WO (1) WO2013065032A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2655905C1 (ru) * 2017-03-29 2018-05-29 Общество с ограниченной ответственностью "Газпром проектирование" Способ обогащения гелием гелийсодержащего природного газа
CN108087019B (zh) * 2017-12-28 2020-01-03 太原理工大学 一种基于水气涡旋流体治理煤矿上隅角瓦斯的装置
RU2688509C1 (ru) * 2018-08-28 2019-05-21 Общество с ограниченной ответственностью "Газпром проектирование" Способ обогащения гелием гелийсодержащего природного газа

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US2790310A (en) * 1954-11-23 1957-04-30 Garrett Corp Axial flow vortex tube mechanism
GB1209795A (en) * 1968-02-22 1970-10-21 Mini Of Technology London Improvements in or relating to centrifugal separators
SU425635A1 (ru) * 1971-10-28 1974-04-30 Э. Г. Э. Зарьищкмй , В. Г. Окк Краснодарский полктехг кческий институт Центробежный газожиддостньш сепаратор
US4339926A (en) * 1981-08-03 1982-07-20 E. D. Bullard Company Vortex tube
RU1776429C (ru) * 1990-08-20 1992-11-23 Череповецкое производственное объединение Аммофос Центробежный каплеуловитель
RU2095637C1 (ru) * 1995-05-03 1997-11-10 Герман Николаевич Ерченко Вихревая установка для выделения водорода из воздуха
RU2177821C1 (ru) * 2001-03-30 2002-01-10 Российский заочный институт текстильной и легкой промышленности Устройство для очистки газа от мелкодисперсных примесей
RU2200616C1 (ru) * 2002-02-27 2003-03-20 Российский заочный институт текстильной и легкой промышленности Устройство для очистки газов
RU2297267C2 (ru) * 2004-10-25 2007-04-20 Анатолий Алексеевич Беспалов Способ разделения многофазных сред и устройство для его осуществления
RU2326740C1 (ru) * 2006-08-14 2008-06-20 Виктор Иванович Кузнецов Сепаратор
RU2371642C1 (ru) * 2008-02-21 2009-10-27 Общество с ограниченной ответственностью "ЭнергоКапитал-Инновации" Способ и устройство вихревого энергоразделения потока рабочего тела

Also Published As

Publication number Publication date
RU2531168C2 (ru) 2014-10-20
UA99241C2 (uk) 2012-07-25
WO2013065032A8 (fr) 2013-09-06
WO2013065032A3 (fr) 2013-07-04
RU2012137663A (ru) 2014-03-10
WO2013065032A2 (fr) 2013-05-10

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