EP3185977A1 - Vanne destinée à mettre en uvre un processus de transfert de matière - Google Patents

Vanne destinée à mettre en uvre un processus de transfert de matière

Info

Publication number
EP3185977A1
EP3185977A1 EP15751043.9A EP15751043A EP3185977A1 EP 3185977 A1 EP3185977 A1 EP 3185977A1 EP 15751043 A EP15751043 A EP 15751043A EP 3185977 A1 EP3185977 A1 EP 3185977A1
Authority
EP
European Patent Office
Prior art keywords
hood
closing element
chimney
lock
designed
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP15751043.9A
Other languages
German (de)
English (en)
Inventor
Reiner GIESE
Stefan Hädicke
Egon SCHMIDT
Jürgen PASCHOLD
Torsten ANDRES
Alexey Shilkin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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
Application filed by BASF SE filed Critical BASF SE
Publication of EP3185977A1 publication Critical patent/EP3185977A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/16—Fractionating columns in which vapour bubbles through liquid
    • B01D3/163—Plates with valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/16—Fractionating columns in which vapour bubbles through liquid
    • B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
    • B01D3/20—Bubble caps; Risers for vapour; Discharge pipes for liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/30—Fractionating columns with movable parts or in which centrifugal movement is caused
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • B01D5/0012—Vertical tubes

Definitions

  • the invention relates to a valve for carrying out a mass transfer process, which is accommodated in a separating bottom comprising an upper and a lower bottom, wherein a lock is formed between the upper bottom and the lower bottom, wherein the valve comprises a closing element which is designed in that, with the closing element in a first valve position, an opening in the lower bottom of the lock can be closed so that liquid can flow from the upper floor into the lock, and in a second valve position the opening in the lower floor is opened and an opening in the upper floor is opened is so that gas can flow through the lock and through liquid on the upper floor.
  • a valve for carrying out a mass transfer process which is accommodated in a separating bottom comprising an upper and a lower bottom, wherein a lock is formed between the upper bottom and the lower bottom, wherein the valve is designed so that in a valve position, gas passes through the separating bottom can flow through and is passed through a standing on the upper floor liquid and when the gas supply, the valve in a second valve position ensures that the liquid from the upper floor can flow into the lock, is for example from EP 2 033 698 A1, EP 2 027 901 A1 or RU 2 237 508 C1.
  • the valves disclosed in these documents each comprise a closing element which comprises two valve disks which are connected to one another by a spacer web.
  • a first position of the closing element In a first position of the closing element is closed with the lower valve disc, an outlet opening from the valve, can flow through the liquid from the lower floor to the underlying separating tray.
  • the second valve disk In a second valve position, the closing element is raised, so that gas can flow through the lower opening in the valve first into the lock and then flow around the lower valve plate through openings in the valve housing through the lock in the direction of the upper floor, wherein the gas on the Upper floor is passed through the liquid standing on the floor.
  • valves can block, so that the liquid does not flow out of the lock on renewed gas supply or an excessive gas pressure is necessary to open the valve. This can lead to a deterioration of the separation performance.
  • a further disadvantage is that in the valves known from the prior art, a large opening cross-section in the lower bottom required so that at the start of the gas supply liquid from the lock and gas can flow in countercurrent through the openings. In this case, the gas must not exceed a critical gas velocity at which countercurrent is no longer possible. Once the critical gas velocity is exceeded, the liquid from the lock can no longer drain.
  • the gas ruptures some of the liquid back onto the upper floor. which leads to an undesired back-mixing of the liquid and thus to a deterioration of the separation performance of the soil.
  • the object of the present invention is therefore to provide a valve for carrying out a mass transfer process, with which an opening in the lower bottom of the lock can be closed in a first valve position and in a second valve position, the opening in the lower bottom is open and an opening in the open fail-safe, so that the valve can not tilt and thereby block, and when the gas supply again, the liquid can flow out of the lock and the gas flow and liquid flow are not mutually obstructed.
  • a valve for carrying out a mass transfer process which is accommodated in a separating bottom comprising an upper and a lower bottom, wherein a lock is formed between the upper bottom and the lower bottom
  • the valve comprises a closing element, the is designed so that with the closure member in a first valve position, an opening in the lower bottom of the lock can be closed so that liquid can flow from the upper floor into the lock, and in a second valve position, the opening in the lower bottom is open and an opening in is open to the upper floor, so that gas can flow through the lock and through liquid on the upper floor
  • the closing element is in the form of a hood, which comprises a jacket having openings, which are positioned so that in the second Valve position Gas through the openings into the liquid on the upper floor ström and further comprising a chimney, wherein the closing element designed as a hood and the chimney are designed so that the cross section of the chimney is smaller than the cross section of the closure element designed as a hood and wherein the chimney with the lower bottom of
  • the design of the closing element in the form of a hood avoids that the closing element can tilt in the valve.
  • the gas can flow through the lock at renewed gas supply, by which the closing element is moved to the second valve position, and at the same time the liquid drains out of the lock.
  • the gas flows through the chimney and the liquid flowing out of the lock flows outside the chimney through the opening in the lower floor. Due to the different channels through which liquid and gas flow, the individual flows are not mutually obstructed.
  • the closing element designed as a hood can be moved by the gas flow into the second position, without the movement of the closing element being adversely affected by a disturbance of the gas flow due to the liquid flowing out of the lock.
  • the chimney is connected to the closing element designed as a hood, the chimney is attached in a first embodiment to the head of the hood, so that between the chimney and the jacket of the hood, a free cross-section is formed.
  • the chimney connects to the jacket of the hood.
  • the chimney has a smaller cross-section than the jacket of the hood.
  • a hood is formed against which the closing element designed as a hood strikes in the second valve position.
  • openings are preferably formed in the hood on the upper floor, which coincide with the openings in the jacket of the closure element designed as a hood. In this way, when the closing element designed as a hood is in the second valve position, the gas can flow through the openings in the closure element designed as a hood and the hood on the upper floor into the liquid on the upper floor.
  • a stop is formed on the chimney against which the closing element designed as a hood abuts with a stop on the jacket when the chimney is connected to the lower floor. Also by the attack on the fireplace, the movement of the closing element designed as a hood is limited. For this purpose, the closing element designed as a hood strikes against the stop on the chimney with a stop formed on the hood. The movement in the first valve position when connected to the lower floor chimney is limited by the fact that designed as a hood closing element rests in the first valve position on the chimney.
  • the stop on the chimney can be formed, for example, in the form of a bead or an annular extension at the upper end of the chimney. Alternatively, it is also possible to perform the attack on the fireplace as a rib, as part of a rib or as a pin.
  • the stop on the closing element formed as a hood is, for example, a circumferential rib at the lower end of the jacket. Alternatively, it is also possible to use a directed into the interior of the hood designed as a closing element bead or rib as a stop.
  • the stop comprises at least one pin on the jacket of the closing element formed as a hood.
  • the closing element embodied as a hood with a stop designed as a pin also abuts against the stop on the chimney when the closing element designed as a housing rotates during its movement.
  • the lower end of the chimney has a through-hole. knife extension on.
  • the diameter extension at the lower end of the gas inlet opening is increased, so that the gas flowing upwards is introduced into the chimney.
  • This also has the advantage that less gas flows through the cross section outside the chimney, through which the liquid flows out of the lock.
  • This has the further advantage that the drainage of the liquid is not hindered by the gas flowing around the chimney through the cross section outside the chimney.
  • the liquid is deflected when leaving the lock, whereby the gas flow directed in the opposite direction to the liquid, which flows into the chimney, is less affected by the liquid trickling downwards.
  • the diameter enlargement is preferably carried out continuously, for example in the form of a radius. It is also possible to make the diameter enlargement conical, elliptical or parabolic.
  • the lower bottom and the upper bottom of the lock For example, to guide the hood between the first and second valve positions, it is possible to connect the lower bottom and the upper bottom of the lock with a sleeve and guide the hood in the sleeve.
  • openings are formed in the sleeve, which are arranged immediately above the lower floor in the lock, so that the liquid can drain from the lower floor through the openings with the valve open.
  • a sleeve it is also possible to provide guide pins, between which the hood is guided.
  • guide pins preferably at least three guide pins are used so that the closing element designed as a hood can not fall out between the guide pins.
  • the abutment for the closure element designed as a hood is designed in the form of a hood on the upper floor, it is preferred, when a sleeve is received between the lower and the upper floor, that the hood on the upper floor part of the sleeve between the floors is, in which case the sleeve protrudes through the upper floor and forms the hood.
  • the sleeve so that it protrudes through the upper bottom and form a stop at the upper end of the sleeve, against which the closing element designed as a hood strikes in the second valve position.
  • the stop may be designed, for example, as a flanged edge, as a bead, as a rib or in the form of pins at the upper end of the sleeve. If the chimney is connected to the closing element designed as a hood, it is furthermore preferred if a stop is formed on the sleeve, against which the closure element designed as a hood strikes in the first valve position.
  • the stop can be designed as above for the fireplace attached to the lower floor. It should be noted that the stop may protrude only so far in the open cross-section that the leakage of liquid from the lock is not hindered.
  • the stopper either protrudes only so far into the interior of the sleeve, that the closing element formed as a hood rests on the stop, but the stop does not protrude into the interior of the hood, or the stopper is in the form of pins on the sleeve.
  • the stopper is formed on the guide pins.
  • the cross section of the fireplace can be designed in any shape. It is also possible to make the not filled by the fireplace cross-section of the opening in the lower floor in any shape. It is particularly preferred to make the opening cross-section in the lower and in the upper bottom of the lock circular. It is then possible to make the chimney also circular with a smaller diameter and to arrange the chimney concentrically in the opening cross-section of the lower floor. Alternatively, it is also possible to make the chimney in the form of a circle segment with a diameter which corresponds to the diameter of the opening in the lower floor.
  • the circle segment of the fireplace can take any shape. For example, it is possible to use the middle section of the circle as a cross section for the fireplace.
  • the chimney may also comprise a plurality of circular sections and between the circular sections are then the cross-sectional areas through which the liquid can drain from the lock.
  • a circular opening cross section in the lower bottom any other cross section is possible.
  • the opening in the upper bottom of the lock designed as a hood closing element and - if provided - the sleeve between the lower and the upper floor running.
  • a circular cross section is preferred.
  • a circular cross-section also has the advantage that no deposits can form in corners.
  • guide elements are provided which project further into the space below the lock as the fireplace.
  • guide elements for example downwardly directed gutters may be attached to the chimney, through which the liquid runs.
  • the gutters run obliquely downwardly away from the cross-sectional area through which the gas flows. In this way, the liquid flows farther away from the opening through which the gas flows to the lower bottom, the length of the guide elements being chosen so that they end in a region in which the gas velocity is so low that no liquid droplets are entrained.
  • the gutters used as guide elements may for example have a U-shaped, V-shaped or rectangular cross-section and are preferably open at the top.
  • the valve according to the invention can be used for all gas-liquid processes which are carried out in columns.
  • gas-liquid processes are, for example, distillation processes, rectification processes or absorption processes.
  • liquid is on the upper floor above the lock and gas flows from the bottom up through the column and through the liquid on the top floor.
  • the closure element designed as a hood is held by the gas flow in the second valve position.
  • the gas flows through the lock upwards and through openings in the closing element formed as a hood above the upper floor through the liquid on the upper floor.
  • the gas supply is interrupted.
  • the closure elements designed as a hood are no longer held in the second valve position and fall down into the first valve position.
  • FIG. 1 shows a valve for a lock in a first embodiment
  • Figure 2 shows a valve according to Figure 1 with additional guide elements for the liquid
  • FIG. 3 shows a valve for a lock in a second embodiment, wherein the closing element is in the first valve position
  • FIG. 4 shows a valve for a lock in a second embodiment, wherein the closing element is in the second valve position
  • FIGS. 5A to 5G show different cross-sections of the chimney
  • FIG. 6 shows a stop for the closing element designed as a hood in a first embodiment
  • FIG. 7 shows a stop for the closing element designed as a hood in a second embodiment
  • FIG. 8 shows a lower section of the diameter-expanded fireplace
  • FIG. 9 shows a valve with a closing element in a third embodiment.
  • FIG. 1 shows a valve for a lock, as it is used in columns for cyclic mass transfer processes.
  • a sluice 1 for a column for cyclic mass transfer processes comprises an upper floor 3 and a lower floor 5. Both in the upper floor 3 and in the lower floor 5 are at least one opening 7, 9, through the liquid down and gas upwards can flow.
  • the opening 7 in the upper floor 3 and the opening 9 in the lower floor 5 are arranged one above the other in alignment, so that a closing element 1 1 of a valve 13, which connects the upper floor 3 and the lower floor 5, through the openings 7, 9 in the Floors 3, 5 can be moved.
  • the closing element 1 1 is designed in the form of a hood.
  • the valve 13 comprises a chimney 15 which is fixedly connected to the lower bottom 5 and whose opening cross section is smaller than the opening cross section of the opening 9 in the lower bottom.
  • the chimney 15 at its upper end an annular extension 17, the diameter of which corresponds to the inner diameter of the closing element 1 1 designed as a hood.
  • the executed as a hood closing element 1 1 can be lifted smoothly and not immediately with the beginning of the lifting movement of the running as a hood closing element 1 1 liquid flows out of the lock 1, protrude the chimney 15 and designed as a hood closing element 1 1 in the first valve position a distance h into the space below the lower bottom 5.
  • the gas initially flows only through a lower opening 25 in the chimney and thus exerts a sufficiently large force on the designed as a hood closing element 1 1 to this out raise the first valve position.
  • the closure element 1 1 designed as a hood has been raised by the distance h, liquid can flow out of the lower floor 5 out of the lock. In this case, the liquid flows outside the chimney 15 through the opening 9.
  • the openings 21 are arranged in the jacket 23 of the closing element 1 1 designed as a hood such that the upper edge of the openings 21 lies below the upper end of the chimney 15 by the distance h when the closing element 1 1 designed as a hood is in the first valve position ,
  • the closing element 1 1 designed as a hood is moved only in the axial direction during movement from the first valve position to a second valve position and does not tilt
  • the closing element 11 constructed as a hood is guided in a sleeve 27 in the embodiment shown here.
  • lower openings 29 are formed below the lower floor 5 in the sleeve 27 through which the liquid can flow from the lock 1 into the space below.
  • the sleeve 27 and the annular extension 19 at the lower end of the chimney 15 also serve to keep the chimney 15 in position.
  • the sleeve 27 protrudes by the distance h in the space below the lower bottom 5. So that gas and liquid in the region of the lock 1 can flow in and out of the sleeve 27, openings 31 are also formed in the sleeve 27 within the lock.
  • the sleeve protrudes 27 in the form of a hood 33 in a space above the upper floor 3.
  • an upper stop for the closing element formed as a hood 1 1 is formed, which controls the movement of the closing element designed as a hood limited in the second valve position.
  • upper openings 35 are formed above the upper floor 3, through which liquid can flow from the upper floor into the lock as soon as the gas flow is no longer sufficiently strong Hinder fluid drain from the upper floor 3.
  • the stop for the designed as a hood closing element 1 1 is executed in the second valve position so that the openings 21 in the executed as a hood closing element 1 1 in the second valve position above the upper bottom 3, wherein the lower edge the openings 21 are preferably flush with the upper bottom 3.
  • the gas supply is interrupted and passed the entire liquid of a separating tray on underlying separating tray. So that it does not come here to a backmixing, the liquid first flows into the lock 1 and from there after restarting the gas supply to the underlying separating bottom.
  • the closing element 1 1 of the valve 13 is in the second valve position. Upon completion of the gas flow, the closing element 1 1 falls into the first valve position, in which the opening 9 in the lower bottom 5 of the lock 1 is closed.
  • Floor 3 first collects in the lock 1 and can not run through the opening 9 in the bottom 5.
  • FIG. 2 shows a valve for a lock with additional guide elements for the liquid.
  • the valve shown in Figure 2 corresponds in its construction substantially to that shown in Figure 1.
  • guide elements in the form of drainage channels 38 which are arranged at the lower end of the chimney 15, are additionally included.
  • the drainage channels 38 adjoin the annular extension 19. Through the drain grooves 38, the liquid from the lower opening 25, through which the gas flows, led away.
  • the drainage channels 38 are preferably oriented obliquely downwards at an angle, as in the embodiment shown here, with the drainage channels 38 moving away from the lower opening 25 in their course.
  • the cross section of the drainage channels 38 may be, for example, U-shaped, V-shaped or preferably rectangular, with the drainage channels 38 preferably being open at the top.
  • Such guide elements for example drainage channels 38, can always be used when the chimney is firmly connected to the lower bottom 5 of the lock 1, as is also the case in the embodiments shown in FIGS. 6 and 7.
  • corresponding guide elements can only be dimensioned or mounted so that the function of the valve is not hindered thereby.
  • FIG. 4 shows the closing element according to the embodiment shown in FIG. 3 in a second valve position.
  • the chimney 15 is connected to the closing element 11 constructed as a hood. So that at the beginning of the drainage of the liquid from the lock 1, the opening 9 in the lower bottom 5 is not completely filled with liquid, so that the gas flow is interrupted or weakened, the fireplace 15 is longer than the jacket 23 of the closing element designed as a hood. 1 1 . As a result, the liquid first flows through the not filled by the chimney 15 cross-section of the opening 9 in the lower bottom 5 and the gas can continue to flow through the opening 25 into the chimney 15.
  • the closing element 11 formed as a hood is in the first valve position shown in FIG.
  • the liquid can drain during the lifting movement of the closing element 1 1 from the lock 1 and no negative pressure forms in the lock, which would cause that liquid is sucked into the lock and thereby the drainage of the liquid is interrupted, are in the jacket 23rd
  • the openings 21 in the jacket 23 and the openings 37 in the chimney are preferably arranged in the upper area of the closing element 11 formed as a hood.
  • gas can flow out of the chimney and out of the region below the jacket 23 through the openings 21, 31 into the lock in order to equalize the pressure.
  • the gas flow formed as a hood closing element 1 1 is further raised until it has reached the second valve position shown in Figure 4. In the second valve position, the openings 21 are located at least partially above the upper floor 3, so that the gas can flow out through the openings 21 into the space above the upper floor 3. Since there is liquid on the upper floor during the mass transfer process, the gas is passed through the liquid.
  • the closing element 11 formed as a hood falls again into the first valve position shown in FIG. 3, whereby the opening 7 in the upper floor is released, so that the liquid from the upper floor through the openings 31 in the sleeve 27 can drain into the lock.
  • the chimney 15 is designed so that this only a part the opening cross-section of the opening 9 in the lower bottom 5 fills.
  • Possible variants for the design of the opening 25 of the chimney 15 are shown in FIGS. 5A to 5G.
  • the opening 9 in the lower bottom 5 is in each case circular. In addition to the circular shape of the opening 9 shown here, however, the opening 9 can also take any other cross section.
  • the chimney 15 also has a circular cross-section.
  • the chimney 15 is arranged concentrically in the opening 9.
  • an eccentric arrangement would also be possible.
  • the chimney with a cross-sectional area in a different shape, for example as a polygon with at least three corners, as an ellipse or in any other shape.
  • the cross-sectional area of the opening 25 of the chimney 15 is smaller than the cross-sectional area of the opening 9 in the lower bottom 5 and that the maximum expansions so be chosen that the chimney 15 does not cut the opening 9 but is completely in the opening 9.
  • FIGS. 5B, 5C and 5D Different variants, in which the chimney is designed in the form of a circular section, are shown in FIGS. 5B, 5C and 5D.
  • the cross-sectional area of the opening 25 in the chimney is greater than the free cross-sectional area 39 of the opening 9
  • the cross-sectional area of the opening 25 in the chimney is smaller than the free cross-sectional area 39 of the opening 9 and in the In the embodiment shown in FIG. 5D, both cross-sectional areas 25, 39 are the same size.
  • the chimney has a cross section in the form of two circular cutouts.
  • the chimney has a cross section of only one circular cutout or even of several circular cutouts.
  • the circular sections each have a center angle of 90 °.
  • the midpoint angle of each circle can be any other value. It is only necessary to ensure that the total cross-sectional area of the opening 25 of the chimney 15 is smaller than the total cross-sectional area of the opening 9 in the lower bottom 5.
  • the cross-section 39 of the opening 9 not filled by the chimney 15 is designed in the form of two opposite axisymmetric circular sections and in the embodiment shown in FIG. 5G mirror-inverted the chimney 15 in the form of the two opposite ones axisymmetric circular sections.
  • the free cross-sectional area 39 is in each case the cross-sectional area of the opening 9 through which the liquid flows out of the lock 1.
  • the upper stop can be realized as shown in Figure 1 in the form of a hood 33 above the upper floor 3.
  • a crimping edge 41 is formed at the lower end of the jacket 23 of the closing element 1 1 designed as a hood. With the crimping edge 41, the closing element 1 1 designed as a hood strikes against the second valve position annular extension 17 at the upper end of the chimney 15, so that the lifting movement of the closing element is limited upwards.
  • a bead 43 may be formed in the jacket 23 of the closing element formed as a hood, which abuts the annular extension 17 of the chimney 15 to limit the lifting movement in the second valve position. This is illustrated by way of example in FIG.
  • the chimney 15 can not be used as a stop, it is possible here, for example, to form the upper and the lower stop for the stroke limitation in the sleeve 27.
  • the stop can also be realized in the form of a flanged edge, a bead or in the form of pins.
  • FIG. 8 An embodiment in which the chimney 15 at the lower end has a diameter extension 45, which runs without an edge, is shown in FIG.
  • the diameter increases steadily.
  • a sharp edge is avoided in which dead spaces can form in which in turn deposits can form.
  • Due to the constant increase in the diameter the liquid can be deflected cleanly.
  • the constant increase in the diameter can be realized, for example, as shown here as a radius. Alternatively, a parabolic, elliptical or hyperbolic diameter increase would be conceivable.
  • FIG. 1 A further embodiment of a valve with a chimney 15 integrally formed on the closing element 11 formed as a hood is shown in FIG.
  • the chimney 15 is designed below the jacket 23 of the closing element 11 designed as a hood.
  • the chimney is formed by a diameter narrowing of the jacket 23.
  • the jacket 23 of the closing element 1 1 formed as a hood is designed so that in the first valve position, lower openings 29 below the lower bottom 5 and openings 36 immediately above the lower bottom 5 in a closing element designed as a hood 1 1 enclosing sleeve are closed so as to prevent the drainage of liquid from the lock 1.
  • the chimney 15 formed at the lower end of the jacket 23 moves in the direction of the lower openings 29 and the openings 36 immediately above the lower floor 5.
  • the liquid can flow out of the lock through the openings 36 and the lower openings 29.
  • gas from the closure element 1 1 designed as a hood can be introduced into the lock 1 through openings 21 in the jacket and openings 31 in the upper region of the sleeve 27 within the lock 1. stream.
  • the gas flows through the openings 21 in the shell 23 of the closing element 1 designed as a hood and the upper openings 25 in the sleeve 27 in the liquid on the upper bottom 3.
  • the lifting movement of the hood executed closing element 1 1 in the second valve position is limited thereby by a crimping edge 47 at the upper end of the projecting into the space above the upper floor 3 sleeve 27.
  • the stop in the first valve position is realized by a flanged edge 49, which is formed at the lower end of the projecting into the space below the lower bottom 3 sleeve 27.
  • the fireplace proposes - possibly with an annular extension 19 - at the flanged edge
  • any other shape of a stop may be formed, for example a bead or pins which project into the sleeve 27.
  • the stop for the second valve position above the upper floor 3 can also be realized as shown in Figure 1 in the form of a hood.
  • a bore is formed through which a pressure compensation can take place when the closing element is in the lower position and thereby the gas flow through the Column is interrupted.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

L'invention concerne une vanne destinée à mettre en œuvre un processus de transfert de matière, qui est logé dans un fond de séparation qui comporte un fond supérieur (3) et un fond inférieur (5), un sas (1) étant formé entre le fond supérieur (3) et le fond inférieur (5) ; la vanne (13) comporte un élément de fermeture (11) qui est conçu de telle sorte que, dans une première position de vanne, une ouverture (9) ménagée dans le fond inférieur (5) du sas (1) peut être fermée au moyen de l'élément de fermeture (11) de manière à ce qu'un liquide puisse s'écouler du fond supérieur (3) jusque dans le sas (1) et, dans une seconde position de la vanne, l'ouverture (9) ménagée dans le fond inférieur (5) est ouverte et une ouverture (7) ménagée dans le fond supérieur (3) est ouverte de sorte qu'un gaz peut s'écouler à travers le sas (1) et à travers le liquide sur le fond supérieur (3). L'élément de fermeture (11) est réalisé sous la forme d'un capot qui comprend une enveloppe (23) qui est pourvue d'ouvertures (21) qui sont positionnées de telle sorte que, dans la seconde position de vanne, le gaz peut s'écouler à travers les ouvertures (21) jusque dans le liquide sur le fond supérieur (3) ; en outre, il est prévu une cheminée (15) ; l'élément de fermeture (11) réalisé sous forme de capot et la cheminée (15) sont conçus de telle sorte que la section transversale de la cheminée (15) est plus petite que la section transversale de l'élément de fermeture (11) réalisé sous forme de capot et la cheminée (15) est reliée au fond inférieur (5) du sas (1) et fait saillie dans le sas (1) ou la cheminée (15) est reliée à l'élément de fermeture (11) conçu sous forme de capot.
EP15751043.9A 2014-08-25 2015-08-24 Vanne destinée à mettre en uvre un processus de transfert de matière Withdrawn EP3185977A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14182081 2014-08-25
PCT/EP2015/069339 WO2016030322A1 (fr) 2014-08-25 2015-08-24 Vanne destinée à mettre en œuvre un processus de transfert de matière

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WO2023160615A1 (fr) * 2022-02-25 2023-08-31 Basf Se Plateau de transfert de masse, son utilisation, colonne le comprenant et procédé de séparation thermique

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DE2846679A1 (de) * 1978-10-26 1980-05-08 Linde Ag Selbstregelndes austauschelement fuer boeden
UA60566C2 (en) 2002-12-10 2006-09-15 Volodymyr Mykolayovych Maleta Mass-exchange contact device
UA81700C2 (en) 2006-04-10 2008-01-25 Богдан Владимирович Малета Mass-exchange contact device
UA81192C2 (en) 2006-06-13 2007-12-10 Mass-exchange contact device

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WO2016030322A1 (fr) 2016-03-03
US20180214791A1 (en) 2018-08-02

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