EP3356010A1 - Ensemble soupape et station d'adsorption - Google Patents

Ensemble soupape et station d'adsorption

Info

Publication number
EP3356010A1
EP3356010A1 EP16785092.4A EP16785092A EP3356010A1 EP 3356010 A1 EP3356010 A1 EP 3356010A1 EP 16785092 A EP16785092 A EP 16785092A EP 3356010 A1 EP3356010 A1 EP 3356010A1
Authority
EP
European Patent Office
Prior art keywords
valve
gas inlet
adsorber
gas outlet
gas
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Withdrawn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
EP16785092.4A
Other languages
German (de)
English (en)
Inventor
Valdo Bahner
Erich Eichhorn
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of EP3356010A1 publication Critical patent/EP3356010A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0446—Means for feeding or distributing gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/048—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with valve seats positioned between movable valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/10—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/12—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40003—Methods relating to valve switching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40086—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by using a purge gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/402—Further details for adsorption processes and devices using two beds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

Definitions

  • the invention relates to a valve arrangement, in particular a four-way switch, for an adsorber station of an air separation plant and an adsorber station for an air separation plant with such a valve arrangement.
  • Cryogenic air separation is a technical process for gas separation in which gas mixtures, such as air, and individual atmospheric gases, such as oxygen, nitrogen and noble gases are liquefied in large quantities.
  • gas mixtures such as air
  • individual atmospheric gases such as oxygen, nitrogen and noble gases
  • the fresh air or feed air supplied to a cryogenic air separation plant has to be freed of water vapor, carbon dioxide and hydrocarbons before cooling in order to remove solid matter in the low-temperature part of the
  • EP 1 314 469 A1 describes an adsorber station with a first adsorber and a second adsorber, the first and the second adsorber each having a product gas supply line provided with a product gas supply valve, a product gas discharge line provided with a product gas discharge valve, one with a Regeneriergaszutechnischsventil provided Regeneriergaszu admir and provided with a regeneration gas discharge valve Regeneriergasab effet own.
  • the object of the present invention is to provide an improved valve arrangement for an adsorber station of an air separation plant.
  • valve assembly in particular a four-way switch, is proposed for an adsorber station of an air separation plant.
  • the valve assembly includes a first valve device that includes a first gas inlet / gas outlet, a second valve device that includes a second gas inlet / gas outlet, a first connector that defines a first housing portion of the first
  • Valve means fluidly connects to a second housing portion of the second valve means, wherein the valve means or the housing portions are arranged parallel to each other and spaced from each other, wherein the first
  • Connecting piece has a third gas inlet / gas outlet, and a second connecting piece, which fluidly connects the first housing portion of the first valve means with the second housing portion of the second valve means, wherein the second connecting piece has a fourth gas inlet / gas outlet, wherein the valve arrangement optionally in a first switching state, in which the first
  • Gas inlet / gas outlet fluidly with the fourth gas inlet / gas outlet and the second gas inlet / gas outlet simultaneously fluidly with the third
  • Gas inlet / gas outlet fluidly with the third gas inlet / gas outlet and the second gas inlet / gas outlet simultaneously fluidly with the fourth
  • Gas inlet / gas outlet is connected, switchable.
  • the valve devices and housing sections arranged parallel to one another and at a distance from one another enable a flexible switching of the gas flows, which are perpendicular to one another.
  • the housing sections and the connecting pieces form a valve housing of the valve arrangement.
  • the adsorber station can have the valve device. With the adsorber station, compressed fresh air can be purified from substances such as carbon dioxide, water or hydrocarbons. The fresh air can also be referred to as feed gas or feed air. After the adsorber station is the purified fresh air, which is then also referred to as product gas can be subjected to a cryogenic decomposition.
  • a regeneration gas in particular a nitrogen-rich or oxygen-rich dry gas mixture originating from the low-temperature decomposition, can be used.
  • Adsorberstationen be constructed with significantly fewer lines, flaps and valves. The reduced number of flaps and valves and the simplified piping will save costs. Furthermore, the
  • Control for switching the adsorber simplified by the smaller number of valves and flaps.
  • valve arrangement is switchable to a third switching state, in which the first gas inlet / outlet, the second
  • Gas inlet / outlet are simultaneously fluidly interconnected.
  • valve arrangement When switching the adsorber from the adsorption phase to the regeneration phase, the valve arrangement is switched to the third switching state.
  • valve arrangement comprises a pressure build-up valve arranged between the first connecting piece and the second connecting piece for pressure equalization between the connecting pieces.
  • the pressure build-up valve may be integrated in the valve housing of the valve arrangement.
  • first valve device and the second valve device are simultaneously switchable, so that the first valve device and the second valve means at the same time between the first switching state and the second switching state are switched back and forth.
  • valve devices can be switched by means of a drive device, for example a linear motor.
  • a drive device for example a linear motor.
  • each valve device a for example, each valve device a
  • the first valve device comprises a first valve seat, a second valve seat and a first valve body arranged between the first valve seat and the second valve seat, wherein the first valve body in the first switching state on the first valve seat and in the second
  • the valve body is operatively connected to an actuating rod.
  • the actuating rod can be led out of the first housing section via a pipe section.
  • the actuating rod is coupled to the drive device.
  • the first gas inlet / gas outlet is arranged between the first valve seat and the second valve seat.
  • the first gas inlet / outlet is preferably positioned opposite and between the connectors.
  • first valve seat and the second valve seat are annular and the first valve body is disk-shaped.
  • the first valve body may also be referred to as the first valve disk.
  • the valve seats preferably completely surround the first housing section on the inside.
  • the first valve body with the aid of the valve arrangement supplied fresh air in the first switching state against the first valve seat and in the second switching state against the second valve seat can be pressed.
  • the pressure of the fresh air can act against the pressure of the regeneration gas.
  • the pressure of the fresh air is higher than the pressure of the regeneration gas. Because the fresh air presses the first valve body against the respective valve seat, the sealing effect is increased and the drive device does not have to work against the pressure of the fresh air. As a result, the drive device can be made smaller. This provides additional security against improper use
  • the first valve body in the first housing section along a longitudinal direction thereof is axially displaceable.
  • the second valve device comprises a third valve seat, a fourth valve seat, a second valve body and a third valve body, wherein the third valve seat and the fourth valve seat between the second valve body and the third valve body are arranged, wherein the third valve body in the first Switching state is applied to the fourth valve seat and wherein the second valve body in the second switching state rests against the third valve seat.
  • the third valve body in the second switching state and the second valve body in the first switching state is not applied to any of the valve seats.
  • Valve body are preferably coupled to a common actuating rod.
  • the actuating rod can be operatively connected to a drive device.
  • the second gas inlet / gas outlet is arranged between the third valve seat and the fourth valve seat.
  • the second gas inlet / gas outlet is preferably positioned opposite and between the connectors.
  • the third valve seat and the fourth valve seat are annular and the second valve body and the third valve body are disk-shaped.
  • the second valve body or the third valve body may be referred to as a second valve disc or as a third valve disc.
  • the valve seats preferably completely surround the second housing section on the inside.
  • the valve seats can be made of a suitable, in particular elastically deformable, material.
  • the material may be a metallic material, rubber or a plastic material.
  • the third valve body with the aid of the valve arrangement supplied fresh air in the first switching state against the fourth valve seat can be pressed, wherein the second valve body in the second switching state is pressed against the third valve seat.
  • the sealing effect is increased and the drive device does not have to work against the pressure of the fresh air.
  • the drive device can be made smaller.
  • the second valve body and the third valve body in the second housing portion are jointly axially displaceable along a longitudinal direction thereof.
  • an adsorber station for an air separation plant comprises a first adsorber, a second adsorber and at least one such valve arrangement, wherein the first adsorber and the second adsorber with the aid of the at least one valve arrangement between a
  • Adsorption and a regeneration phase are switchable.
  • the Adsorberstation can also be used as Molsiebstation and the adsorber as
  • the Adsorberstation is adapted to fresh air, which is subjected to an air separation of substances such as water,
  • the adsorber station has two such valve arrangements.
  • the adsorber station further includes conduits fluidly connecting the valve assemblies to the adsorbers.
  • the Adsorberstation includes a pressure build-up valve and a pressure reduction valve to prevent inadmissible pressure surges when switching between the adsorption phase and the regeneration phase and vice versa, and several flaps and a heater. With the help of the heater, the regeneration gas can be heated for a baking phase. The heating phase is part of the regeneration phase.
  • valve arrangement and / or the
  • Adsorber stations also do not explicitly include combinations of features or embodiments described above or below with regard to the exemplary embodiments.
  • the expert is also individual aspects as
  • valve assembly additives or additions to the respective basic form of the valve assembly and / or the adsorber station.
  • Further advantageous embodiments and aspects of the valve arrangement and / or the Adsorberstation are the subject of the dependent claims and the embodiments of the valve assembly described below and / or the
  • Fig. 1 shows a schematic view of an embodiment of an adsorber station for an air separation plant
  • Fig. 2 shows a schematic sectional view of a valve assembly for the
  • Adsorber station according to FIG. 1;
  • FIG. 3 shows a further schematic sectional view of the valve arrangement according to FIG.
  • FIG. 4 shows a schematic sectional view of the adsorption station according to FIG. 1;
  • FIG. FIG. 5 shows a further schematic sectional view of the adsorber station according to FIG. 1;
  • FIG. FIG. 6 shows a further schematic sectional view of the adsorption station according to FIG. 1;
  • FIG. 4 shows a schematic sectional view of the adsorption station according to FIG. 1;
  • FIG. 5 shows a further schematic sectional view of the adsorber station according to FIG. 1;
  • FIG. FIG. 6 shows a further schematic sectional view of the adsorption station according to FIG. 1;
  • FIG. 7 shows a further schematic sectional view of the adsorber station according to FIG. 1;
  • FIG. 8 shows a further schematic sectional view of the adsorber station according to FIG. 1;
  • FIG. 9 shows a further schematic sectional view of the adsorber station according to FIG. 1; FIG. and
  • FIG. 10 shows a schematic sectional view of a further embodiment of a valve arrangement for the adsorber station according to FIG. 1.
  • identical or functionally identical elements are with the same
  • FIG. 1 shows a schematic view of an embodiment of a molecular sieve station or adsorber station 1 for a cryogenic air separation plant or
  • the air separation plant 40 may include the adsorber 1. With the help of the adsorber station 1, carbon dioxide, hydrocarbons and water vapor can be removed from fresh air L to be treated. After removal of the aforementioned substances, the fresh air L becomes one
  • the Adsorberstation 1 comprises two switchable Molsiebadsorber or adsorber 2, 3, which alternately with the to be removed
  • the adsorber 2 is in an adsorption phase and the adsorber 3 is in a regeneration phase.
  • Adsorption phase can also be referred to as a loading phase.
  • the adsorber station comprises two valve arrangements 4, 5, which can also be referred to as four-way switches.
  • the valve assemblies 4, 5 are preferably identical.
  • the valve assemblies 4, 5 are in different
  • Switch positions can be moved.
  • the adsorbers 2, 3 are cyclically switchable by means of the valve arrangements 4, 5, preferably approximately every four hours, the duration of the filling volume of the adsorber 2, 3 is determined.
  • the supply of fresh air L takes place continuously.
  • a first valve assembly 4 is supplied.
  • the line 6 divides into two lines 6a and 6b which connect the first valve arrangement 4 fluidically to a first adsorber 2 and to a second adsorber 3, respectively.
  • the first valve assembly 4 is switched so that the fresh air to be treated L, which can also be referred to as feed gas, the first adsorber 2 is supplied.
  • the fresh air flow is marked in FIG. 1 with thick lines.
  • a second valve arrangement 5 is provided, which is fluidically connected to the adsorbers 2, 3 by means of lines 7a, 7b.
  • the line 7a is assigned to the first adsorber 2 and the line 7b to the second adsorber 3.
  • the second valve arrangement 5 is connected in such a way that the line 7a is fluidically connected to the line 7.
  • the valve assemblies 4, 5 are thus connected so that the fresh air L through the
  • Adsorber 2 is passed, in which the fresh air L, the substances to be removed are withdrawn.
  • the adsorber 2 is thus in the adsorption phase. Due to the heat of adsorption, the fresh air L drawn off via the line 7 has a higher temperature than the inlet temperature.
  • the adsorber 3 is in the regeneration phase.
  • a regeneration gas RG is supplied.
  • the Regeneriergasstrom is characterized in Fig. 1 with thin lines.
  • the regeneration gas RG is, for example, a nitrogen-rich or oxygen-rich dry gas mixture originating from the low-temperature decomposition.
  • the regeneration gas RG is supplied via a line 8.
  • the line 8 is divided into two lines 8a, 8b.
  • the lines 8a, 8b connect the Line 8 with a line 9, which in turn is fluidly connected to the second valve assembly 5.
  • the line 8a has a valve or a flap 10.
  • the line 8b also has a valve or a flap 1 1. Furthermore, between the
  • Lines 8a, 8b provided a heater or a heater 12.
  • the flaps 10, 1 1 can be switched so that the regeneration gas RG for heating the same through the conduit 8 a passed through the heater 12 or is passed over the line 8 b to the heater 12 around.
  • the flaps 10, 1 1 can be replaced by a two-way switch according to FIG. 10.
  • the regeneration phase usually has a heating phase. The duration of the
  • Baking phase is about 1/3 of the regeneration phase.
  • the regeneration gas RG is performed with the door open 10 and flap 1 1 closed over the heater 12 and heated to a temperature of about 100 to 200 ° C.
  • the regeneration phase of the second adsorber 3 is on again
  • the first valve assembly 4 is connected so that the
  • Line 6b is fluidically connected to a line 14, with which the regeneration gas RG is withdrawn from the adsorber 1.
  • the conduit 14 further comprises a valve or flap 15 and a pressure reduction valve 16 connected in parallel with the flap 15. The function of the flap 15 and the pressure relief valve 16 will be explained later.
  • the first adsorber 2 can be brought into the regeneration phase and the second adsorber 3 in the adsorption phase. This happens without an interruption of the fresh air supply. That is, the fresh air L is the adsorber 1 even during the switching of the adsorber 2, 3 of the regeneration phase in the adsorption phase and vice versa continuously fed.
  • the pressure in the adsorbers 2, 3 is significantly higher during the adsorption phase than in the regeneration phase. In order to avoid pressure surges, the pressure in the second adsorber 3 is therefore reduced before the regeneration gas RG is introduced via the pressure reduction valve 16. Before the two adsorbers 2, 3 are switched over, the pressure in the second adsorber 3 is slowly increased to the operating pressure via the pressure increase valve 13 in order to avoid pressure surges when switching over.
  • FIG. 2 shows a schematic view of an embodiment of the valve arrangement 4 in a first switching state.
  • FIG. 3 shows the valve arrangement 4 in a second switching state. Since the valve assemblies 4, 5 are substantially identical, reference will be made below only to the valve assembly 4.
  • the valve arrangement 4 comprises a first valve device 17 and a second one
  • Valve device 18 The first valve device 17 has a tubular first housing section 19 and the second valve device 18 has a tubular second housing section 20.
  • Housing sections 19, 20 are arranged parallel to each other and spaced from each other.
  • the first housing portion 19 is by means of two tubular
  • the connecting pieces 21, 22 may be screwed or welded to the housing sections 19, 20, for example.
  • the connecting pieces 21, 22 are spaced from each other and positioned parallel to each other.
  • the connecting pieces 21, 22 are arranged perpendicular to the housing sections 19, 20, so that the connecting pieces 21, 22 with the housing sections 19, 20 form a rectangular valve housing 23 of the valve arrangement 4.
  • a first gas inlet / gas outlet 24 is provided on the first housing section 19 of the first valve device 17 . That is, in or out of the first one
  • Gas inlet / outlet 24 flows depending on the positioning of the valve assembly 4 in the adsorber 1 and regardless of the switching state of the valve assembly 4, the fresh air L on or off.
  • the first housing portion 19 is a
  • the first valve body 25 is provided.
  • the first valve body 25 may also be referred to as the first valve disk.
  • the first valve body 25 is in one Longitudinal direction L 19 of the first housing portion 19 linearly displaceable.
  • the first valve body 25 is coupled to an actuating rod 26.
  • the actuating rod 26 is led out of the first housing section 19 via a pipe section 27 provided on the front side of the first housing section 19.
  • Operating rod 26 may be operatively connected to a drive device, such as a linear motor or a pneumatic drive. With the aid of the drive device, the first valve body 25 can be linear in the first
  • the first valve device 17 further comprises a first valve seat 28 and a second valve seat 29.
  • the first valve body 25 is arranged between the valve seats 28, 29.
  • the first gas inlet / gas outlet 24 is also arranged between the valve seats 28, 29.
  • the valve seats 28, 29 are annular and completely surround the first housing section 19 on the inside.
  • the first valve body 25 bears against the first valve seat 28, whereby the fluidic connection between the first gas inlet / gas outlet 24 and the first connection piece 21 is interrupted.
  • the first valve body 25 rests against the second valve seat 29, whereby the fluidic
  • Connector 22 is interrupted. In both switching states, the first valve body 25 is pressed by a pressure P L of the fresh air L against the respective valve seat 28, 29, whereby the sealing effect is improved.
  • the pressure P L of the fresh air L is significantly higher than a pressure of the regeneration gas RG.
  • a second gas inlet / gas outlet 30 is provided on the second housing section 20 of the second valve device 18 to which, for example, the line 9 or 14 (FIG. 1) can be connected. That is, in or out of the second
  • Gas inlet / outlet 30 flows depending on the positioning of the valve assembly 4 in the adsorber 1 and regardless of the switching state of the valve assembly 4, the regeneration gas RG on or off.
  • a disc-shaped second valve body 31 is provided in the second housing portion 20, a disc-shaped second valve body 31 is provided.
  • the second valve body 31 may also be referred to as a second valve disk. Furthermore, in the second
  • a disk-shaped third valve body 32 is provided.
  • the third valve body 32 may also be referred to as a third valve disk.
  • the Valve body 31, 32 are together in a longitudinal direction L 20 of the second
  • Housing section 20 linearly displaceable.
  • the longitudinal direction L 20 is oriented parallel to the longitudinal direction L 19 .
  • the valve bodies 31, 32 are coupled to an actuating rod 33.
  • the valve body 31, 32 are arranged spaced from each other on the actuating rod 33.
  • the actuating rod 33 is provided with a pipe section 39 from the second housing section 20 via a pipe section 39 provided on the front side on the second housing section 20
  • the actuating rod 33 may be operatively connected to a drive device, for example a linear motor or a pneumatic drive. With the aid of the drive device, the second valve body 31 and the third valve body 32 can be displaced together in a linear manner in the second housing section 20.
  • the second valve device 18 further comprises a third valve seat 34 and a fourth valve seat 35.
  • the second gas inlet / gas outlet 30 is between the
  • Valve seats 34, 35 arranged.
  • the valve seats 34, 35 are annular and completely surround the second housing section 20 on the inside.
  • the valve bodies 31, 32 are not arranged between the valve seats 34, 35 but outside of these.
  • the second valve body 31 is provided to the left of the third valve seat 34 and the third valve body 32 to the right of the fourth valve seat 35.
  • the third valve body 32 bears against the fourth valve seat 35, whereby the fluidic connection between the second gas inlet / gas outlet 30 and the second connection piece 22 is interrupted.
  • Gas inlet / gas outlet 30 and the first connector 21 is interrupted.
  • the third valve body 32 is pressed by the pressure P L against the fourth valve seat 35 and the second valve body 31 against the third valve seat 34, whereby the sealing effect is improved.
  • the first connecting piece 21 comprises a third gas inlet / gas outlet 36, to which the line 6a or 7a (FIG. 1) can be connected. That is, in and out of the third gas inlet / gas outlet 36 flows depending on the positioning of Valve assembly 4 in the adsorber 1 and depending on the switching state of
  • Valve assembly 4 the fresh air L or the regeneration gas RG on or off.
  • the second connecting piece 22 comprises a fourth gas inlet / gas outlet 37, to which the line 6b or 7b (FIG. 1) can be connected. That is, in or from the fourth gas inlet / gas outlet 37 flows depending on the positioning of the valve assembly 4 in the adsorber station 1 and depending on the switching state of the valve assembly 4, the fresh air L or the regeneration gas RG on or off.
  • valve arrangement 4 is selectively in the first switching state, in which the first gas inlet / gas outlet 24 is fluidic with the fourth gas inlet / gas outlet 37 and the second gas inlet / gas outlet 30 is fluid with the third gas inlet / gas outlet 36 is connected, or in the second
  • FIGS. 4 to 9 each show schematic sectional views of the adsorber station 1 according to FIG. 1.
  • the functioning of the adsorber station 1 and of the valve arrangements 4, 5 will be explained in more detail below with reference to FIGS.
  • the valve assemblies 4, 5 may each comprise a manhole or a service opening 38.
  • the maintenance opening 38 is closed by means of a removable lid.
  • the maintenance opening 38 may be provided on the first valve device 17 and / or on the second valve device 18.
  • the pressure build-up valve 13 may be integrated into the second valve arrangement 5. With the help of the pressure build-up valve 13, the first connector 21 is fluidly connected to the second connector 22 to allow pressure equalization between them.
  • the first adsorber 2 is in the adsorption phase and the second adsorber 3 is in the regeneration phase.
  • the valve assemblies 4, 5 are both switched to the second switching state in which the first gas inlet / outlet 24 fluidly with the third gas inlet / outlet 36 and at the same time the second
  • Gas inlet / outlet 30 is connected to the fourth gas inlet / gas outlet 37.
  • the pressure build-up valve 13 is closed.
  • the flaps 10, 11 and 15 are open and the pressure relief valve 16 is closed or opened.
  • the compressed fresh air L is supplied to the first adsorber 2 via the conduits 6 and 6a, and the purified fresh air L is withdrawn via the conduits 7a and 7b.
  • the regeneration gas RG is supplied to the second adsorber 3 via the lines 9 and 7b and withdrawn via the lines 6b and 14.
  • the fresh air L has a much higher pressure than the regeneration gas RG.
  • Regeneration gas RG is fed more.
  • the flap 15 and the pressure reduction valve 16 are closed.
  • the pressure increase valve 13 is opened, so that the pressure in the second adsorber 3 increases. As a result, an impermissible surge in the
  • FIG. 6 shows the adsorber station 1 when the adsorbers 2, 3 are switched over.
  • the two valve arrangements 4, 5 are in a third switching state.
  • all gas inlets / gas outlets 24, 30, 36, 37 are fluidly connected to one another.
  • the pressure build-up valve 13, the flaps 10, 11 and 15 and the pressure reduction valve 16 are closed.
  • the fresh air L is supplied via the line 6 and the lines 6a, 6b both adsorbers 2, 3 simultaneously and over the
  • FIG. 7 shows the adsorber station 1 immediately after the switching of the adsorbers 2, 3, wherein a pressure reduction is carried out in the first adsorber 2.
  • Valve assemblies 4, 5 are switched to the first switching state, in which the first gas inlet / gas outlet 24 is fluidically connected to the fourth gas inlet 37 and at the same time the second gas inlet / gas outlet 30 to the third gas inlet / gas outlet 36.
  • the pressure build-up valve 13 and the flaps 10, 11, 15 are
  • the pressure reduction valve 16 is opened, so that the pressure in the first adsorber 2 is reduced.
  • the fresh air L is supplied to the second adsorber 3 via the lines 6 and 6b and withdrawn via the lines 7b and 7.
  • the first adsorber 2 is in the regeneration phase and the second adsorber 3 is in the adsorption phase. That is, the switching of the adsorbers 2, 3 is completed.
  • the flaps 10, 11 and 15 are open.
  • the pressure buildup valve 13 is closed and the pressure relief valve 16 is either open or closed.
  • the fresh air L is supplied to the second adsorber 3 via the lines 6 and 6b and withdrawn via the lines 7b and 7.
  • the regeneration gas RG is supplied to the first adsorber 2 via the lines 9 and 7a and withdrawn via the lines 6a and 14.
  • FIG. 9 shows the adsorber station 1 once again when the adsorbers 2, 3 are switched, with the first adsorber 2 being switched to the adsorption phase and the second adsorber 3 being switched to the regeneration phase.
  • both valve assemblies 4, 5 are switched to the first switching state.
  • Pressure reduction valve 16 are closed.
  • the pressure build-up valve 13 is opened to achieve a pressure build-up in the first adsorber 2. This is when
  • FIG. 10 shows a further embodiment of a valve arrangement 4
  • Valve arrangement 4 according to FIG. 10 differs from the valve arrangement 4 according to FIGS. 2 and 3 only in that the valve arrangement 4 has only one
  • Valve device 17 has.
  • the valve arrangement 4 according to FIG. 0 can also be referred to as a two-way diverter. With the aid of the valve arrangement 4 according to FIG. 10, the flaps 10, 11 can be replaced.
  • the present invention has been described with reference to embodiments, it is variously modifiable.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Multiple-Way Valves (AREA)

Abstract

L'invention concerne un ensemble soupape (4, 5), en particulier un aiguillage à quatre voies, pour une station d'adsorption (1) d'une installation de séparation d'air (40), comprenant un premier dispositif de soupape (17) qui comporte une première entrée de gaz/sortie de gaz (24), un deuxième dispositif de soupape (18) qui comporte une deuxième entrée de gaz/sortie de gaz (30), une première pièce de liaison (21) qui relie de manière fluidique une première partie de boîtier (19) du premier dispositif de soupape (17) à une deuxième partie de boîtier (20) du deuxième dispositif de soupape (18), la première pièce de liaison (21) comprenant une troisième entrée de gaz/sortie de gaz (36), et une deuxième pièce de liaison (22) qui relie de manière fluidique la première la première partie de boîtier (19) du premier dispositif de soupape (17) à la deuxième partie de boîtier (20) du deuxième dispositif de soupape (18), la deuxième pièce de liaison (22) comprenant une quatrième entrée de gaz/sortie de gaz (37), l'ensemble soupape (4, 5) pouvant être commuté sélectivement dans un premier état de commutation, dans lequel la première entrée de gaz/sortie de gaz (24) est reliée de manière fluidique à la quatrième entrée de gaz/sortie de gaz (37) et la deuxième entrée de gaz/sortie de gaz (30) est simultanément reliée de manière fluidique à la troisième entrée de gaz/sortie de gaz (36), ou dans un deuxième état de commutation, dans lequel la première entrée de gaz/sortie de gaz (24) est reliée de manière fluidique à la troisième entrée de gaz/sortie de gaz (36) et la deuxième entrée de gaz/sortie de gaz (30) est simultanément reliée de manière fluidique à la quatrième entrée de gaz/sortie de gaz (37).
EP16785092.4A 2015-09-29 2016-09-20 Ensemble soupape et station d'adsorption Withdrawn EP3356010A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15002796 2015-09-29
PCT/EP2016/001570 WO2017054906A1 (fr) 2015-09-29 2016-09-20 Ensemble soupape et station d'adsorption

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EP3356010A1 true EP3356010A1 (fr) 2018-08-08

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EP (1) EP3356010A1 (fr)
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WO (1) WO2017054906A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN114046455A (zh) * 2021-12-17 2022-02-15 湖南卓誉科技有限公司 一种集成进出气阀及变压吸附气路系统
CN114159928B (zh) * 2021-12-17 2022-09-13 湖南卓誉科技有限公司 集成进出气阀及变压吸附气路系统
FR3141076A1 (fr) * 2022-10-20 2024-04-26 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Module de distribution et commutation de gaz entre adsorbeurs

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US2182724A (en) * 1938-06-06 1939-12-05 Hennessy John Brendan Pipe and valve for controlling the flow of fluid therethrough
US2920653A (en) * 1954-07-16 1960-01-12 Charles J Wolff Valve apparatus
US3280536A (en) * 1963-07-30 1966-10-25 Exxon Research Engineering Co Method for providing an oxygen-enriched environment
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CN108136313A (zh) 2018-06-08
US10843119B2 (en) 2020-11-24
CN108136313B (zh) 2021-05-04
US20180280865A1 (en) 2018-10-04
WO2017054906A1 (fr) 2017-04-06

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