WO2020249824A1 - Appareil d'évaporateur cyclonique et procédé associé - Google Patents

Appareil d'évaporateur cyclonique et procédé associé Download PDF

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Publication number
WO2020249824A1
WO2020249824A1 PCT/EP2020/066529 EP2020066529W WO2020249824A1 WO 2020249824 A1 WO2020249824 A1 WO 2020249824A1 EP 2020066529 W EP2020066529 W EP 2020066529W WO 2020249824 A1 WO2020249824 A1 WO 2020249824A1
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WO
WIPO (PCT)
Prior art keywords
evaporation chamber
gas flow
gas
fluid medium
gas inlet
Prior art date
Application number
PCT/EP2020/066529
Other languages
English (en)
Inventor
B-O Åhrström
Christian ÅHRSTRÖM
Original Assignee
Scandsib Holdings Ltd
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.)
Filing date
Publication date
Priority claimed from EA201991201 external-priority patent/EA046047B1/ru
Application filed by Scandsib Holdings Ltd filed Critical Scandsib Holdings Ltd
Publication of WO2020249824A1 publication Critical patent/WO2020249824A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
    • B01D19/0057—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/16—Evaporating by spraying
    • 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
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
    • B04C5/04—Tangential inlets
    • 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
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B04C2009/008—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with injection or suction of gas or liquid into the cyclone

Definitions

  • the present disclosure relates generally to separation and/or evaporation of fluids and solids and especially to a cyclonic evaporator apparatus and associated method.
  • Garbage particularly biological waste as it decomposes during anaerobic conditions, deep down inside of landfills, creates malodorous gas and liquid.
  • the gas is usually a combustible short chain hydrocarbon whilst the liquid (further denoted leachate) is very much dependent on the type of garbage deposit on the landfill. Approximately 95- 97 % is water, but the remainder is difficult to quantify without a thorough chemical analysis.
  • the obvious problem with the leachate is that it pollutes the groundwater and carries harmful constituents, from the landfill, to adjacent drinking water wells.
  • Rotational effects such as vorticity, centripetal force, and/or gravity, act to separate different aggregates from fluids or gases. This method can also be used to separate fine droplets of liquid from a gaseous stream.
  • a high-velocity rotating airflow is established within a circular symmetrical (e.g. cylindrical, conical or spherical) container called a cyclone.
  • Air is fed tangentially into the cyclone to create helical movement of the air, beginning at the second (usually the wide end) of the cyclone and ending at the first (narrower) end before exiting the cyclone in a straight stream through the center of the cyclone.
  • Particles with greater inertia will deflect from the rotating vortex and strike the outside wall, before falling to the bottom of the cyclone where they can be removed.
  • a cyclonic evaporator is disclosed in US 6,958,107.
  • an alternative cyclone design uses a secondary air flow within the cyclone to keep the collected particles from striking the walls, to protect them from abrasion and clogging.
  • the primary air-flow containing the particulates, enters from the bottom of the cyclone and is forced into spiral rotation by stationary spiral vanes.
  • the secondary air-flow enters from the top of the cyclone and moves downward toward the bottom, intercepting the particulate from the primary air.
  • a cyclonic evaporator apparatus for separating constituents of a fluid medium, the apparatus comprising an evaporation chamber having a fluid inlet for introducing the fluid medium, a first gas inlet arranged in a first portion of the evaporation chamber for ingress of a first gas flow, and a second gas inlet arranged in a second portion of the evaporation chamber for ingress of a second gas flow, wherein the second gas inlet is arranged at an oblique angle with respect to the evaporation chamber to create helical movement of the second gas flow in the evaporation chamber towards the first portion, wherein the first gas inlet is arranged coaxially with a longitudinal axis of the evaporation chamber to create axial movement of the first gas flow into the evaporation chamber towards the second portion, wherein the evaporation chamber comprises an outlet
  • the first gas inlet is arranged in the first (e.g. bottom) portion of the evaporator chamber, in which also the fluid medium is introduced through the fluid inlet.
  • the first gas flow has a medium to high velocity when entering the evaporation chamber through the first gas inlet.
  • the second gas inlet is arranged in the second (e.g. top) portion of the evaporation chamber through which the second gas flow is introduced into the evaporation chamber at an oblique angle.
  • the second gas flow has a medium to high angular velocity creating a turbulent gas“swirl” through its helical movement and moves towards the first end of the evaporation chamber.
  • Droplets of the fluid medium will be kept in the center of the first gas flow along the longitudinal axis of the evaporation chamber, due to the velocity difference of the first and second gas flows.
  • any solid constituents in the fluid medium will (after evaporation) be driven out of the first gas flow into the second gas flow (closer to the second portion of the evaporation chamber) as the velocity field and pressure map gradually change their proportions from pure containment to separation promotion.
  • the evaporated fluid in gaseous form
  • any solid constituents will follow the second gas flow to the first end of the evaporation chamber where they can be collected and disposed of.
  • the cyclonic evaporator apparatus is back-pressure neutral and can evaporate the fluid medium in an easy, effective and cheap way. It contains no moving parts in the evaporation chamber and uses a counter-directed flow to contain the evaporated fluid medium along the longitudinal axis of the evaporation chamber and keep the walls clean of deposits.
  • the end piece of the first gas inlet has an increasing cross-section in a downstream direction of the first gas flow, i.e. the opening of the first gas inlet increases gradually as it extends into the evaporation chamber to direct the first gas flow in a direction towards the second portion along the longitudinal axis of the evaporation chamber.
  • the expanding cross-section of the first gas inlet reduces the velocity of the first gas flow to a desired optimum velocity (dependent on e.g. the gas flow rate, temperature and composition).
  • the fluid inlet comprises one or more atomizer nozzles arranged to inject the fluid medium into the first gas flow.
  • the one or more atomizer nozzles are arranged on the first gas inlet. Atomization of the fluid medium creates a mist of fine droplets which promotes and accelerates evaporation when the droplets are introduced in the first gas flow.
  • the fluid inlet comprises a manifold in the form of an annular chamber surrounding the first gas inlet, wherein the one or more atomizer nozzles are arranged in fluid communication with the manifold.
  • the fluid medium may be pre-heated through heat exchange with the first gas inlet before being introduced in the first gas flow through the atomizer nozzles. This increases the efficiency of the subsequent evaporation.
  • the evaporation chamber has a conical shape which tapers in a direction towards the first end.
  • the second portion of the evaporation chamber has a cylindrical shape and the first portion has a conical shape.
  • the geometrical shape of the evaporation chamber influences the change of the velocity field and the pressure map of the first and second gas flows to control the transition from pure containment to separation promotion of the evaporated fluid medium and any solid constituents such that optimal evaporation is achieved.
  • the first and second portions of the evaporation chamber each has a conical shape which tapers in a direction towards the first and second ends, respectively, of the evaporation chamber. This configuration more quickly increases the velocity field difference between the first and second gas flows and promotes separation of the evaporated fluid medium and any solid constituents, while potentially enabling reduction of the dimension of the evaporation chamber.
  • the evaporation chamber is an at least partially jacketed vessel and the fluid medium is arranged to enter the jacket before entering the evaporation chamber through the fluid inlet.
  • the fluid medium is led into the evaporator through the jacketed part and is pre-heated during this procedure, at the same time cooling down the outer walls of the evaporator for labor safety.
  • the cyclonic evaporator apparatus further comprises a thermal sensor arranged to measure the temperature of the fluid medium, and a valve arranged to regulate the flow of the fluid medium into the evaporation chamber based on the measured temperature.
  • a thermal sensor arranged to measure the temperature of the fluid medium
  • a valve arranged to regulate the flow of the fluid medium into the evaporation chamber based on the measured temperature.
  • the cyclonic evaporator apparatus further comprises a third gas inlet arranged near the outlet for ingress of a third gas flow.
  • a third gas inlet arranged near the outlet for ingress of a third gas flow.
  • the cyclonic evaporator apparatus further comprises a collector arranged in the first portion of the evaporation chamber for collecting solid constituents separated from the evaporated fluid medium.
  • the collector may simply comprise a container or receptacle arranged near the first end of the evaporation chamber which may be removed from the cyclonic evaporator apparatus.
  • the first end of the evaporation chamber is open to allow egress of the separated solid constituents, even during operation of the cyclonic evaporator apparatus.
  • a method for separating constituents of a fluid medium through cyclonic evaporation comprising:
  • first gas inlet is arranged coaxially with a longitudinal axis of the evaporation chamber to create axial movement of the first gas flow into the evaporation chamber; and - allowing evaporated fluid medium to exit the evaporation chamber through an outlet arranged in the second portion.
  • the fluid medium is atomized before being introduced into the first gas flow. Atomization of the fluid medium creates a mist of fine droplets which promotes and accelerates evaporation when the droplets are introduced in the first gas flow.
  • the first gas flow comprises a hot gas and the second gas flow comprises ambient air provided by means of a fan arranged upstream of the second gas inlet.
  • the hot gas may comprise flue gas originating from combustion of a fuel such that waste heat is used to evaporate the fluid medium and separate any solid constituents therefrom.
  • the temperature difference between the first and second gas flow may be used to control containment and separation of the evaporated fluid medium and any solid constituents.
  • the first and second gas flows comprise a hot gas originating from the same source.
  • both the first and second gas flows may comprise flue gas originating from combustion of a fuel, which is subsequently divided into separate streams before being introduced into the evaporation chamber.
  • Fig. 1 shows a perspective view of a cyclonic evaporator apparatus according to one embodiment of the present disclosure
  • Fig. 2 shows a cutaway perspective view of the interior of a cyclonic evaporator apparatus according to one embodiment of the present disclosure
  • Figs. 3 A and 3B show perspective and cross-sectional views of a fluid inlet and gas inlet according to one embodiment of the present disclosure
  • Figs. 3C and 3D show exploded and mounted cross-sectional views of a fluid inlet and gas inlet according to one embodiment of the present disclosure
  • Fig. 4 shows a cutaway perspective view of the interior of a cyclonic evaporator apparatus according to one embodiment of the present disclosure, illustrating evaporation and separation of constituents of a fluid medium; and Fig. 5 shows an exploded view of separate components of an evaporation chamber according to one embodiment of the present disclosure.
  • the example embodiments of the cyclonic evaporator apparatus and the evaporation method are discussed in examples below with respect to evaporating leachate from a landfill, it will be appreciated by those of ordinary skill in the art that the cyclonic evaporator apparatus and the evaporation method of the present disclosure can be used in association with any sort of process of separating constituents, such as e.g. soluble or suspended solids, in any kind of liquid or fluid.
  • a perspective view of a cyclonic evaporator apparatus 1 is shown.
  • the evaporator comprises an evaporation chamber 10 in which two gas flows 31, 41 are introduced together with a fluid medium 21 to be evaporated in order to separate the constituents thereof, as will be explained further below in conjunction with Fig. 4.
  • the evaporation chamber 10 comprises a first gas inlet 30 and a second gas inlet 40, as well as a fluid inlet 20 for the fluid medium.
  • the first gas inlet 30 is arranged in a first portion 11 of the evaporation chamber 10, which in a vertical configuration corresponds to the bottom portion, whereas the second gas inlet 40 is arranged in a second portion 12 of the evaporation chamber 10, corresponding to the top portion in the vertical configuration.
  • the evaporation chamber 10 comprises an outlet 50 arranged in the second portion 12 for egress of evaporated fluid medium.
  • the cyclonic evaporator apparatus 1 may also be operated in a horizontal configuration with minor modifications of the evaporation chamber 10.
  • the evaporation chamber 10 is rotationally symmetrical to promote and sustain tangential/rotational flow of the second gas flow 41, as will be explained further below in conjunction with Fig. 4.
  • the first portion 11 of the evaporation chamber 10 is conical, tapering towards the first end 13 or bottom of the evaporation chamber 10, whereas the second portion 12 is cylindrical.
  • the evaporation chamber 10 may be substantially conical or cylindrical, or both the first and second portions 11, 12 may be conical, tapering from the center towards the respective first and second ends 13, 14 (bottom and top) of the evaporation chamber 10.
  • the first gas inlet 30 is arranged coaxially with a longitudinal axis X of the evaporation chamber 10 such that the first gas flow 31 enters the evaporation chamber 10 exhibiting substantially laminar flow at high velocity (4-5 m/s) in a direction towards the second portion 12, as will be explained further below in conjunction with Fig. 4.
  • the end piece 35 of the first gas inlet 30 has an increasing cross-section in a downstream direction of the first gas flow 31, i.e. towards the interior of the evaporation chamber 10.
  • the expansion of the cross-section may be constant (conical) as shown in Fig. 1, or variable (e.g. hourglass shaped like the downstream portion of a de Laval nozzle) as shown in Fig. 2 and acts to reduce the velocity of the first gas flow 31, due to the Venturi effect, to a desired optimum velocity, chosen in dependence of gas flow rate, temperature and composition of the first gas.
  • the fluid inlet 20 is arranged in near proximity to the first gas inlet 30 such that the fluid medium 21 to be evaporated is introduced into the first gas flow 31 as soon as the first gas flow 31 enters the evaporation chamber 10.
  • the fluid inlet 20 comprises one or more atomizer nozzles 22 arranged to inject the fluid medium 21 into the first gas flow 31 in the form of a mist or spray. Atomizing the fluid medium significantly increases the relative surface area of the fluid medium 21 which accelerates evaporation through increased exposure to the first gas flow 31.
  • the one or more atomizer nozzles 22 are arranged on the first gas inlet 30, e.g. distributed about the end piece 35 of the first gas inlet 30 in a ring configuration, as will be explained more in detail in conjunction with Figs. 3 A-3D below.
  • the second gas inlet 40 is arranged at an oblique angle to the evaporation chamber 10 such that the second gas flow 41 enters the evaporation chamber 10 in a substantially tangential direction to create helical movement, i.e. spiraling of the second gas flow 41 along the walls of the evaporation chamber 10.
  • the second gas inlet 40 is oriented slightly tilted towards the first portion 11 of the evaporation chamber 10, i.e. at an angle to a horizontal plane in Figs. 1 and 2, such that the second gas flow 41 moves in a general direction towards the first portion 11.
  • the dimensions and geometry of the evaporation chamber 10 are chosen such that the full thermal energy content in the (hot) first gas flow 31, e.g. exhaust gas from combustion in an engine, is optimally utilized to evaporate the fluid medium 21.
  • the fluid inlet 20 and first and second gas inlets 30, 40 may be formed from pipe sections of suitable material and dimensions and welded to the evaporation chamber 10 to ensure a fluid tight seal. Additionally, the part of the fluid inlet 20 located inside the evaporation chamber 10 may comprise a flexible pipe section arranged to adapt to deformations or changes of the components of the cyclonic evaporator apparatus 1 due to varying temperature and/or pressure in the evaporation chamber 10.
  • the fluid inlet 20 is preferably arranged in close proximity to the first gas inlet 30 such that the fluid medium 21 to be evaporated may enter the first gas flow 31 simultaneously with the latter being introduced into the evaporation chamber 10.
  • the end piece 35 of the first gas inlet 30 is approximately bowl shaped to provide the expanding cross-section and is separate from the tubular first gas inlet 30 which terminates in a flange 32.
  • the fluid inlet 20 terminates in an annular manifold 23 which surrounds the first gas inlet 30.
  • Fig. 3A the fluid inlet 20 terminates in an annular manifold 23 which surrounds the first gas inlet 30.
  • the manifold 23 is instead arranged between the flange 32 and the end piece 35 wherein a central through-going opening in the manifold 23 forms an extension of the tubular first gas inlet 30.
  • the distal end of the tubular fluid inlet 20 terminates in the manifold 23.
  • the manifold 23 forms an integral annular chamber and comprises a plurality of radially oriented outlets in the form of atomizer nozzles 22 which curve inwardly into the bowl-shaped end piece 35 through openings formed therein.
  • the embodiment of Fig. 3B has the advantage of providing a compact configuration wherein the fluid medium 21 may be pre-heated in the manifold 23 through heat exchange with the first gas inlet 30 before entering the first gas flow 31 through the nozzles 22.
  • FIG. 3C and 3D one embodiment of the fluid inlet 20 and the first gas inlet 30, similar to the embodiment of Fig. 3B, is disclosed.
  • the manifold 23 is formed from two components, a lower flange 26 comprising a cylindrical wall 27 and a central opening 28 with a diameter corresponding to the inner diameter of the tubular first gas inlet 30; and an upper flange 36 with a central tubular portion 38 with an inner diameter also corresponding to the inner diameter of the tubular first gas inlet 30.
  • the upper flange 36 and the lower flange 26 are mounted on the flange 32 of the first gas inlet 30 by means of bolts arranged in through-going holes distributed about the periphery of the respective flanges 32, 26, 36.
  • Suitable sealing means such as O-rings may be provided on the respective interfacing surfaces of the upper and lower flanges 36, 26 to achieve fluid-tight sealing of the manifold 23 and the first gas inlet 30.
  • the upper flange 36 further comprises a plurality of threaded holes 37 distributed about the circumference at a radial distance from the central axis which is smaller than the radial distance of the cylindrical wall 27 in the lower flange 26.
  • the threaded holes 37 provide fluid communication with the interior chamber of the manifold 23 when the upper and lower flanges 36, 26 are mounted together.
  • the central tubular portion 38 comprises an external thread mating with an internal thread provided in the lower opening of the bowl-shaped end piece 35.
  • the threaded holes 37 are arranged to receive atomizer nozzles 22, which when mounted are oriented inward and extend into the bowl-shaped end piece 35 through openings 33 therein.
  • the modular manifold 23 of Figs. 3C and 3D provides the same advantages of a compact configuration which enables heat exchange between the first gas flow 31 and the fluid medium 21. Additionally, the atomizer nozzles 22 are arranged closer to the central axis X and do not extend outside the circumference of the manifold 23/end piece 35, thus protecting them from abrasion.
  • the end piece 35 may comprise an additional through-going hole 34 arranged closer to the central opening than the holes 33 for the atomizer nozzles 22.
  • a flexible tube (not shown) may be seated in additional hole 34 and extend in a direction towards the first end 13 of the evaporation chamber 10, which may be open. The tube will then provide means for checking the flow of fluid medium 21 into the evaporation chamber 10. In case the flow of fluid medium 21 is too high, this will cause accumulation of liquid outside the top end of the tubular portion 38 which protrudes into the bottom of the end piece 35. The accumulated liquid will drain out through the additional hole 34 and the tube and thus provide visual feedback to the operator. In this way, the flow of fluid medium 21 may be easily regulated without requiring flow sensors or other measurement equipment.
  • the evaporation chamber 10 is a jacketed vessel wherein the fluid medium 21 is arranged to enter the jacket and be pre-heated before entering the first gas flow 31.
  • the jacket is arranged outside the first portion 11 which is foreseen to be subjected to higher temperature than the second portion 12.
  • the cyclonic evaporator apparatus 1 may further comprise a thermal sensor arranged to measure the temperature of the fluid medium 21 and a valve arranged to regulate the flow of the fluid medium 21 into the evaporation chamber 10 based on the measured
  • Fig. 4 illustrates the working principle of the cyclonic evaporator apparatus 1 according to the present disclosure.
  • the first gas flow 31 is introduced into the evaporation chamber 10 through the first gas inlet 30 arranged in the first portion 11.
  • the first gas inlet 30, with the end piece 35 is arranged coaxially with a longitudinal axis X of the evaporation chamber 10 such that the first gas flow 31 enters the evaporation chamber 10 exhibiting substantially laminar flow at high velocity (4-5 m/s) in an axial direction towards the second portion 12.
  • the second gas flow 41 is introduced into the evaporation chamber through the second gas inlet 40 arranged in the second portion 12 at an oblique angle to the evaporation chamber 10, i.e.
  • the second gas inlet 41 is tilted towards the first portion 11, i.e. at a downwards angle with respect to a horizontal plane in Figs. 1, 2 and 4.
  • the fluid inlet 20 introduces the fluid medium 21 into the first gas flow 31.
  • the first gas flow 31 is indicated by the white arrows and the fluid medium 21 is indicated by the black arrows.
  • the fluid medium 21 is atomized by means of the nozzles 22 as it enters the first gas flow 31 to increase the relative surface area.
  • the atomized fluid medium 21 is then mixed with the first gas flow 31 which acts to evaporate the liquid constituents of the fluid medium 21 as the mixture moves from the first portion 11 to the second portion 12 of the evaporation chamber 10.
  • the solid constituents 25 escape from the laminar first gas flow 31 outward toward the walls of the evaporation chamber 10, indicated by the black arrows, whereas the evaporated fluid medium 24 (in gaseous form), indicated by the dashed arrows, continues in the axial direction out through the outlet 50 together with the first gas flow 31.
  • the solid constituents 25 are then entrained by the spiraling second gas flow 41 along the walls of the evaporation chamber, back towards the first end 13 of the evaporation chamber, where they can empty out through an opening, or be collected by means of a suitable receptacle (not shown).
  • a modular configuration of the evaporation chamber 10 is shown in an exploded view. Due to the abrasive nature of the solid constituents 25 separated from the fluid medium 21, the walls of the evaporation chamber 10 may become worn with time.
  • the second portion 12 of the evaporation chamber 10 comprises a lid 12a with the second gas inlet 40 and the outlet 50 arranged thereon, and a removable and replaceable cylindrical portion 12b.
  • the first portion 11 of the evaporation chamber 10 comprises a base 11a which
  • the current invention may for instance be used to address an urgent problem of separating hazardous components in leachate from landfills.
  • the combustion gases of gas engines or turbines or similar (usually introduced on the landfills as degasification equipment and“green” electrical energy producer) are utilized as the first gas flow and the otherwise wasted thermal energy is retrieved for further utilization. Since engines/turbines cannot operate under back-pressure, it is imperative that the evaporator is designed to comply with that restraint, i.e. in such way that the introduction and evaporation of leachate does not prevent the through-flow of combustion gases.
  • the evaporator is back-pressure neutral for optimum combustion engine performance, and can evaporate the leachate in an easy, effective and cheap way. It contains no moving parts in the evaporation chamber and uses a counter-directed flow to contain the evaporated fluid medium along the longitudinal axis of the evaporation chamber and keep the walls clean of deposits.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Cyclones (AREA)

Abstract

L'invention concerne un appareil d'évaporateur cyclonique (1) servant à séparer les constituants d'un milieu fluide (21), l'appareil comprenant une chambre d'évaporation (10) ayant une entrée de fluide (20) pour introduire le milieu fluide, une première entrée de gaz (30) disposée dans une première partie (11) de la chambre d'évaporation (10) pour l'entrée d'un premier écoulement de gaz (31), et une seconde entrée de gaz (40) disposée dans une seconde partie (12) de la chambre d'évaporation (10) pour l'entrée d'un second écoulement de gaz (41), la seconde entrée de gaz (40) est disposée selon un angle oblique par rapport à la chambre d'évaporation (10) pour créer un mouvement hélicoïdal du second écoulement de gaz (41) dans la chambre d'évaporation (10) vers la première partie (11), la première entrée de gaz (30) est disposé de manière coaxiale par rapport à un axe longitudinal (X) de la chambre d'évaporation (10) pour créer un mouvement axial du premier écoulement de gaz (31) dans la chambre d'évaporation (10) vers la deuxième partie (12), la chambre d'évaporation (10) comprenant une sortie (50) disposée dans la deuxième partie (12) pour la sortie du milieu fluide évaporé (24).
PCT/EP2020/066529 2019-06-14 2020-06-15 Appareil d'évaporateur cyclonique et procédé associé WO2020249824A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EA201991201 EA046047B1 (ru) 2019-06-14 Циклонный испаритель и связанный с ним способ отделения
EA201991201A EA201991201A1 (ru) 2019-06-14 2019-06-14 Циклонный испаритель и связанный с ним метод отделения

Publications (1)

Publication Number Publication Date
WO2020249824A1 true WO2020249824A1 (fr) 2020-12-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220219174A1 (en) * 2019-06-21 2022-07-14 Librixer Ab Librixer Comminutor and Particle Air Classifier System

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816490A (en) * 1952-09-24 1957-12-17 Nichols Engineering And Res Co Apparatus for treating liquid mixtures for separation of solid particles and gases
US3895994A (en) * 1974-02-15 1975-07-22 Kenji Saguchi Spray dryer
FR2321673A1 (fr) * 1975-08-21 1977-03-18 Teissedre Colette Dispositif de refroidissement ou de concentration d'un liquide par evaporation
GB1514824A (en) * 1974-08-13 1978-06-21 Stork Amsterdam Apparatus suitable for use in a method of spray-drying a liquid
US4820414A (en) * 1983-10-06 1989-04-11 Noel Carroll Cyclone separator
US6958107B1 (en) 1998-09-30 2005-10-25 Alcos Technologies Pty Ltd Cyclonic evaporator
WO2011144884A1 (fr) * 2010-05-21 2011-11-24 Petroleo Brasileiro S.A. - Petrobras Séparateur à cyclone pourvu de deux sorties de gaz et procédé de séparation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816490A (en) * 1952-09-24 1957-12-17 Nichols Engineering And Res Co Apparatus for treating liquid mixtures for separation of solid particles and gases
US3895994A (en) * 1974-02-15 1975-07-22 Kenji Saguchi Spray dryer
GB1514824A (en) * 1974-08-13 1978-06-21 Stork Amsterdam Apparatus suitable for use in a method of spray-drying a liquid
FR2321673A1 (fr) * 1975-08-21 1977-03-18 Teissedre Colette Dispositif de refroidissement ou de concentration d'un liquide par evaporation
US4820414A (en) * 1983-10-06 1989-04-11 Noel Carroll Cyclone separator
US6958107B1 (en) 1998-09-30 2005-10-25 Alcos Technologies Pty Ltd Cyclonic evaporator
WO2011144884A1 (fr) * 2010-05-21 2011-11-24 Petroleo Brasileiro S.A. - Petrobras Séparateur à cyclone pourvu de deux sorties de gaz et procédé de séparation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220219174A1 (en) * 2019-06-21 2022-07-14 Librixer Ab Librixer Comminutor and Particle Air Classifier System

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