EP1551533A1 - Dispositif et procede pour secher un courant gazeux - Google Patents

Dispositif et procede pour secher un courant gazeux

Info

Publication number
EP1551533A1
EP1551533A1 EP03765031A EP03765031A EP1551533A1 EP 1551533 A1 EP1551533 A1 EP 1551533A1 EP 03765031 A EP03765031 A EP 03765031A EP 03765031 A EP03765031 A EP 03765031A EP 1551533 A1 EP1551533 A1 EP 1551533A1
Authority
EP
European Patent Office
Prior art keywords
desiccant
gas
gas flow
pots
steering means
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Withdrawn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
EP03765031A
Other languages
German (de)
English (en)
Inventor
Michael Zlotos
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.)
Protec Polymer Processing GmbH
Original Assignee
Mann and Hummel 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 Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1551533A1 publication Critical patent/EP1551533A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F26B21/083—Humidity by using sorbent or hygroscopic materials, e.g. chemical substances, molecular sieves
    • 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
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • 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
    • B01D2259/40007—Controlling pressure or temperature swing adsorption
    • B01D2259/40009—Controlling pressure or temperature swing adsorption using sensors or gas analysers
    • 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
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • 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
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot 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
    • 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
    • B01D53/0462—Temperature swing adsorption

Definitions

  • the invention relates to a device for drying a gas stream, preferably in a bulk material dryer, in particular a two-chamber dryer, according to the preamble of claim 1.
  • the invention also relates to a method for drying a gas stream according to the preamble of claim 7.
  • EP 0 884 085 A1 describes a method and a device for the regeneration of a moisture-adsorbing medium.
  • a fan here, which ensures the circulation of the air flow to dehumidify the air and dehumidify the desiccant.
  • the air flow is controlled by an arrangement of four valves arranged in front of the desiccant pots in the gas flow direction. With the help of this arrangement, part of the dried air can be used to dehumidify the desiccant pot to be regenerated.
  • use of the ambient air is possible for this purpose, for this purpose two additional valves are integrated into the outlet lines of the desiccant pots.
  • the desiccant heated during dehumidification in each case via a heater arranged in the desiccant pot, is cooled by means of ambient air in each case via an additional fan which is arranged in each desiccant pot.
  • the opening and closing of the valves is controlled by a logic controller, which processes moisture, temperature or time signals.
  • the invention has for its object to provide a device and a method for drying a gas stream, which is inexpensive, simple in construction and has a low energy consumption.
  • the device according to the invention and the method according to the invention are preferably used in bulk dryers.
  • Other types of use such as Dehumidifier or the like is conceivable.
  • the device according to the invention has at least two desiccant pots, furthermore steering means, gas guide channels and a single blower.
  • the gas to be dried is sucked in via the blower and passed through the gas guide channels to a respective inlet of the desiccant pots.
  • the gas routing channels preferably have the same channel length and preferably the same channel diameter, the basic shape of the gas routing channels being round, angular or as desired.
  • the gas guide channels to the individual desiccant pots should preferably have the same internal volume with the same pressure loss between the blower and the inlet of the desiccant pots.
  • the desiccant pots each have a heating device, a desiccant and an outlet, the desiccant being arranged between the inlet and the outlet.
  • the heating device can be a heating coil, a radiator or another means known in the prior art for achieving switched heating, and is used to selectively heat either the gas stream flowing through the drying agent or the drying agent itself. By means of this heating, the desiccant saturated with moisture is regenerated by releasing the adsorbed moisture into the flowing gas stream.
  • the desiccant is preferably molecular sieve, but can also be any other means known in the art for adsorbing moisture from a gas stream. The moisture of the gas stream to be dried is taken up in the desiccant which is not yet saturated with moisture from the moist gas flowing through.
  • steering means are provided in the gas guide channels, which guide the respective gas flows.
  • These steering means can be designed as valves, flaps or other means known in the prior art for influencing a fluid flow.
  • the steering means are preferably designed as a 4-way valve and as a throttle valve, the 4-way valve being arranged in the junction of the two gas guide channels led out of the desiccant pots, the third way opening into a further gas guide channel and the fourth way in a gas guide channel which with the environment is bound, flows.
  • a throttle valve which can open and close this path, is arranged in the gas guide channel connected to the surroundings.
  • the steering means are arranged individually in the respective gas routing channels led out of the desiccant pots.
  • a timing of the steering means ensures that this device realizes gas routing for gas dehumidification and complete regeneration of the desiccant with only a single fan.
  • the low cost of materials combined with the low energy input of this device compared to the prior art is particularly advantageous here. There are fewer moving parts in the device and this logically results in a longer life of the device.
  • a temperature sensor is provided for detecting the temperature of the gas streams flowing out of the desiccant pots through the gas guide channels.
  • This single temperature sensor is preferably arranged in the gas guide channel connected to the environment after the two gas guide channels leading out of the desiccant pots have been brought together.
  • the temperature sensor can also be arranged at further positions of the gas duct, it only has to be ensured that the temperature of the gas stream leaving the respectively regenerating desiccant pot is detected.
  • the steering means are correspondingly connected to the temperature sensor, which connection can be mechanical, electrical or electronic in nature. This stipulates that the temperatures detected by the temperature sensor have an influence on the position of the steering means. It is thereby achieved that this device realizes gas routing for gas dehumidification and complete regeneration of the drying agent with only a single blower and this gas routing is realized by the steering means depending on the temperatures prevailing in the respective gas streams.
  • At least two temperature sensors are provided in the flow direction after the respective outlet of the desiccant pots for detecting the temperature of the outflowing gas.
  • These temperature sensors can be designed electrically, electronically or mechanically analogous to the above temperature sensor.
  • the steering means are correspondingly connected to the temperature sensors, which connection can be mechanical, electrical or electronic in nature.
  • the heating devices of the desiccant pots can be controlled as a function of the temperatures of the gases flowing out of the desiccant pots and the position of the steering means, determined by means of the temperature sensors.
  • the heating devices are preferably switched on or off in such a way that reaching a predetermined temperature in the gas flow or an end stop of a steering means causes the heating devices to be switched on or off, the heating devices of the various desiccant pots not being switched on at any time.
  • a predetermined temperature in the gas flow or an end stop of a steering means causes the heating devices to be switched on or off, the heating devices of the various desiccant pots not being switched on at any time.
  • the heating device of the desiccant pots, the temperature sensors and the steering means are correspondingly connected to one another via a control device.
  • This control device is preferably designed as an electronic microprocessor, which evaluates the incoming signals by means of stored algorithms and reacts with outgoing control signals. Furthermore, the incoming and outgoing values could be visualized directly or indirectly via a display and thus allow conclusions to be drawn about the respective process status of the device and the method, in which case error messages could also be output.
  • This corresponding connection does not necessarily have to be realized via an electronic microprocessor, however, a mechanical connection or a simple electrical switching connection could also be used.
  • circuits triggered by input signals can be implemented using simple structural designs.
  • a further modification of the invention has a further heater for heating the gas flow, the heating power of this heater and / or the blower power of the blower being changeable by means of the control device described above.
  • the heating power is preferably adapted accordingly to the temperature prevailing in the gas stream, in order, for example, in the presence of an already heated gas flow, to reduce the heating power and thus save energy.
  • the blower output could also be adapted to the desired gas volume flow.
  • a gas stream which is caused to flow by a single fan and contains moisture through gas guide channels, which preferably have no influence on the respective volume flows is split up into two partial streams. divides, these two partial streams being fed via an inlet into desiccant pots.
  • a partial stream is passed through a desiccant arranged in the desiccant pot, where the moisture of the gas stream is adsorbed, and the dried gas stream then leaves the first desiccant pot via an outlet.
  • the second partial flow is preferably used at times at the same time as regeneration gas for the regeneration of the desiccant saturated with moisture in this desiccant pot.
  • Regeneration consists of dehumidifying the desiccant and then cooling the desiccant.
  • the temperature of the desiccant should be low enough after the completion of the regeneration to be used again for the dehumidification of the gas. In practical use, this means a desiccant temperature of less than 100 ° C.
  • the temperature of the regeneration gas is measured with the help of temperature sensors after leaving the second desiccant pot.
  • the control of the gas flow and the regeneration gas takes place via steering means arranged in further gas guidance channels in the flow direction after the desiccant pots, whereby the volume distribution of the partial flows is also realized by the steering means. This control can also include regulation.
  • a changed gas flow guidance takes place via the steering means, and thereby a changed use of the desiccant pots, so that the desiccant pot previously used for dehumidifying the gas flow is regenerated and the previously regenerated desiccant pot is now used for dehumidifying the gas flow.
  • the advantage resulting from this method lies in the skillful use and control of the gas stream, provided by only one fan, for dehumidifying the gas stream in a first desiccant pot, for temporarily dehumidifying the desiccant in a second desiccant pot and for subsequent cooling of the desiccant of this second desiccant pot. Maximum success is achieved with a low use of materials and energy.
  • the steering means are controlled as a function of the temperatures detected by the temperature sensors and, in addition, specifically specified periods of time, it being possible for a controller to also include a regulation. It is preferably provided that the steering means close the flow path through the regenerated desiccant pot when a suitable temperature of well below 100 ° C. is reached in the regeneration gas stream and after a Change the current function of the individual desiccant pots from regeneration to gas dehumidification and vice versa over a period of approximately one hour by changing the gas flows.
  • the specified switching temperature and the specified period of time can of course differ depending on the type and amount of desiccant used and the specific properties of the gas to be dried and must be adapted to the actual circumstances.
  • an advantageous embodiment of the method consists in that a heating device is provided for each desiccant pot, and these heating devices are controlled as a function of the temperatures of the regeneration gas flow detected by the temperature sensors and the position of the steering means.
  • the heating devices serve to heat the desiccant, either directly or via the gas flowing through, this heating releasing the moisture adsorbed in the desiccant.
  • the desiccant and the gas stream flowing into the desiccant are heated to approx. 200-260 ° C.
  • the heating devices should never be in operation at the same time. This option can be kept open for maintenance purposes, but this is not normally the case.
  • One of the heating devices is preferably switched on as soon as the position of the steering means releases the flow of a partial gas flow through the desiccant pot into the environment. This can be done properly via z. B. Detect limit switches in the steering means. Then then increases the temperature of the regeneration gas flow, which is detected by the temperature sensor after the desiccant pots, to a value between 100 ° C and 160 ° C, the heating device is switched off again.
  • a further advantageous embodiment of the method consists in that when the temperature falls below a predetermined temperature, the steering means close the flow path through the regenerated desiccant pot and the entire gas flow is directed through the desiccant pot, which dehumidifies the gas stream.
  • the regeneration gas stream of approximately below 100 ° C.
  • the regeneration of the desiccant is completed to the extent that no further cooling by the gas stream is necessary.
  • the desiccant is cooled further automatically by radiation to the surroundings.
  • the desiccant is again completely free of moisture below temperatures of approx. 50 ° C - 80 ° C usable from gas flows. But here, too, the temperature values depend on the material of the desiccant or on changed times.
  • the steering means direct the gas flow in such a way that part of the heat used in the regeneration, which is in the desiccant after the dehumidification of the desiccant has been completed, is used to heat the gas flow.
  • Part of the heat already used to dehumidify the desiccant is advantageously used for this purpose. This means energy savings through the possibility of lowering the temperature of the additional heating device.
  • the gas stream flowing through the heated desiccant pot for cooling is not directed to the environment by means of the steering means but is fed to the dried partial gas stream and thus ensures a temperature increase in the overall gas stream. Accordingly, the temperature increase obtained in this way does not have to be applied via the additional heating device.
  • FIG. 1 Schematic representation of a two-chamber dryer in a preferred embodiment with two temperature sensors
  • FIG. 2 Schematic representation of a two-chamber dryer in a further embodiment with only one temperature sensor
  • FIG 3 Schematic representation of a two-chamber dryer to illustrate the process steps with changed flow conditions
  • Figure 4 Schematic representation of a two-chamber dryer to illustrate the process steps with a completely closed gas routing
  • FIG. 5 Schematic representation of a two-chamber dryer to illustrate the process steps after changing the process
  • FIG. 1 shows the embodiment according to the invention of a two-chamber dryer 10 with a bulk container 11, which has a container inlet 12 and a container outlet 13 for guiding the gas stream flowing through.
  • the bulk material is preferably formed here by granules 15.
  • a container lid 14 and a granulate inlet 16 are provided for introducing the granulate 15.
  • the dried gas stream enters via the container inlet 12, flows through the granulate 15 preferably from bottom to top, absorbs moisture from the granulate 15 and leaves the bulk material container 11 with the absorbed moisture via the container outlet 13.
  • the container lid 14 or the granulate inlet 16 offer the possibility of pressure compensation against the occurrence of a negative pressure in the bulk material container 11 by a possibility to let in ambient air.
  • the moisture-enriched gas is then passed through gas filter channels 17 through a filter 18 in order to filter out fine particles which may have come from the granulate 15 and contaminate the gas from the gas stream.
  • This filter 18 can be designed as a dry or as a liquid filter, it only has to be able to filter out the fine particles to be expected from the gas stream.
  • the gas stream is fed to a blower 19.
  • This blower 19 produces the pressure difference necessary for establishing a gas circulation. At the same time, it ensures gas circulation for dehumidifying the gas flow and also for producing a gas flow for regeneration.
  • the gas stream pressed out of the blower is divided via a fork in the gas guide channels 17, a first partial gas stream leading to a first desiccant pot (A) 20, with a heating device (A) 22 assigned to this desiccant pot (A) 20, an inlet 25, an outlet 26 and a desiccant 24 disposed between inlet 25 and outlet 26.
  • a second partial gas stream is passed to a second desiccant pot (B) 21, with a heating device (B) 23 assigned to this desiccant pot (B) 21, an inlet 25, an outlet 26 and a desiccant 24 arranged between inlet 25 and outlet 26.
  • the partial gas streams passed through the desiccant pots 20, 21 are guided by gas guide channels connected to the respective outlets 26.
  • first steering means (A) 29 preferably a 4-way valve.
  • temperature sensors temperature sensors (temperature sensors (A) 27 and temperature sensors (B) 28) are assigned to the first desiccant pot (A) 20 and the second desiccant pot (B) 21, which are used to record 5 the temperatures of the desiccant pots 20, 21 leaving partial gas flows are provided.
  • the steering means (A) 29 is flowed through by the two partial gas flows via the gas guide channels 17 and has the possibility of combining the gas flows in one or two further gas guide channels 17 or passing them on individually.
  • one of these further gas routing ducts leads via a further steering means (B) 30, before
  • the steering means 29, 30, the heating devices 22, 23, 31, the temperature sensors 27 , 28 and the blower 19 are connected to one another via a control device 33 by data lines 32.
  • the gas flow and the gas flow are connected to one another via a control device 33 by data lines 32.
  • Fig. 1 the steering means 29, 30 and the heating devices 22, 23, 31 are switched so that the gas flow driven by the blower 19 is divided into approximately equal parts, with dehumidification of the one partial gas flow taking place in the desiccant pot (A) 20 , the dehumidified gas is passed to the fully switched on heater (C) 31 and
  • the second partial gas stream is heated in the desiccant pot (B) 21 by the heating device (B) 23 and passed through the desiccant 24 saturated with moisture to regenerate the desiccant 24.
  • the moisture stored in the desiccant 24 is evaporated by the heated gas and thus the desiccant
  • the partial gas flow which is now enriched with moisture, is directed via the steering means (A) 29 to the steering means (B) 30 which is in the open position and from there to the surroundings.
  • the temperature of the regeneration gas stream i.e. the partial gas stream which is used for drying agent regeneration, is recorded via the temperature sensor (B) and via the data lines.
  • the section of the dehumidification process shown in FIG. 1 thus shows the simultaneous dehumidification of the granules 15 via a gas stream with subsequent dehumidification of part of this gas stream and part of the regeneration of the drying agent 24
  • FIG. 2 shows an embodiment of the device according to the invention, with only a single temperature sensor 27, 28 being provided for detecting the regeneration gas temperature. 1 corresponding components are provided with the same reference numerals. This is arranged in the section of the gas guide duct 17 which is located between the steering means (A) 29 and the steering means (B) 30. The corresponding position of the steering means 29, 30 ensures that the temperature of the partial gas stream dehumidifying the desiccant 24 is always detected.
  • the gas routing and the arrangement and function of the other components of the device is carried out as in FIG. 1.
  • FIG. 3 shows the gas dehumidification process, which is continued over time, with component positions changed with reference to FIG. 1. 1 corresponding components are provided with the same reference numerals.
  • this common gas stream is heated and the thermal energy to be introduced into the gas stream flowing through the bulk material container 11 can be reduced via the additional heating device (A).
  • This can e.g. B. via the control device 33.
  • the heating device (B) 23 is switched off.
  • the partial gas stream flowing through the drying agent pot (B) 21 is heated to a temperature of approximately 200 to 260 ° C. by means of the heating device before the drying agent 24 flows through it.
  • FIG. 4 shows the gas dehumidification process, which is continued over time, with the component positions changed with reference to FIG. 3. 1 corresponding components are provided with the same reference numerals.
  • the regeneration of the desiccant 24 in the desiccant pot (B) 21 has now been completed.
  • Experience has shown that the desiccant 24 is again fully absorbable for moisture below a temperature of approximately 100 ° C.
  • the cooling depends on the ambient temperature and the further cooling time allowed.
  • the initial temperature of well below 100 ° C is based on experience, but depending on the desiccant 24 used, the amount of dry The corner means 24 or the position of the temperature sensors 27, 28 vary.
  • the condition of the drying means 24 could also be determined by means of moisture sensors which either detect the moisture of the gas flowing through or directly sense the moisture of the drying agent. A corresponding connection to the control device 31 could then be used to switch the components influencing the flow and the dehumidification on the basis of the detected moisture values.
  • FIG. 5 shows the gas dehumidification process, which is continued over time, with the component positions changed with reference to FIG. 4. 1 corresponding components are provided with the same reference numerals.
  • the drying agent 24 is now regenerated in the drying agent pot (A) 20, while the dehumidifying of the gas flowing through takes place in the drying agent pot (B) 21.
  • a gas stream is dehumidified in a desiccant pot 20, 21 and the desiccant 24 contained is temporarily regenerated simultaneously in the second desiccant pot 20, 21.
  • the change of the desiccant pot 20, 21, which is respectively active for gas dehumidification, takes place via the steering means 29, 30 and the heating devices 22, 23 and is controlled via a control device 33, wherein the control can also include a regulation.
  • the timing which was shown in the figure descriptions 1 and 3 to 5, takes place alternately for both desiccant pots 20, 21 depending on the position of the steering means 29, 30.
  • the period of time until the gas streams change and thus the change of the desiccant pot 20, 21 used for gas dehumidification is preferably predefined as a function of the desired drying capacity, but it is also conceivable that this period of time was determined by the respective process parameters, such as recorded temperatures Make moisture, bulk quantity and heating and blower performance dependent.
  • the time period could be set individually by the control device 33.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Gases (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour sécher un courant gazeux, en particulier pour un sécheur à matériau en vrac. Le dispositif selon l'invention comprend au moins deux puits à dessiccateur (20, 21), des capteurs de température (27, 28), des éléments de guidage (29, 30) et des canaux à gaz (17). Chaque puits à dessiccateur (20, 21) comporte une entrée (25), une sortie (26), un dispositif de chauffage (22, 23) et un dessiccateur (24), ce dernier (24) étant logé entre l'entrée (25) et la sortie (26). Le dispositif de chauffage (22, 23) est conçu pour chauffer le courant gazeux, les capteurs de température (27, 28) servent à la mesure de la température du courant gazeux, l'élément de guidage (29, 30) sert à guider le courant gazeux et les canaux à gaz (17) sont reliés, de façon à correspondre, aux puits à dessiccateur (20, 21). Le dispositif est pourvu d'une seule soufflante (19) qui est reliée, de façon à correspondre, aux puits à dessiccateur (20, 21). L'élément de guidage (29, 30) est situé en aval des puits à dessiccateur (20, 21) dans le sens du courant gazeux, tout en étant relié, de façon à correspondre, aux capteurs de température (27, 28).
EP03765031A 2002-07-20 2003-07-17 Dispositif et procede pour secher un courant gazeux Withdrawn EP1551533A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10233015 2002-07-20
DE2002133015 DE10233015A1 (de) 2002-07-20 2002-07-20 Vorrichtung und Verfahren zur Trocknung eines Gasstromes
PCT/EP2003/007799 WO2004009218A1 (fr) 2002-07-20 2003-07-17 Dispositif et procede pour secher un courant gazeux

Publications (1)

Publication Number Publication Date
EP1551533A1 true EP1551533A1 (fr) 2005-07-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03765031A Withdrawn EP1551533A1 (fr) 2002-07-20 2003-07-17 Dispositif et procede pour secher un courant gazeux

Country Status (3)

Country Link
EP (1) EP1551533A1 (fr)
DE (1) DE10233015A1 (fr)
WO (1) WO2004009218A1 (fr)

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US9282851B2 (en) * 2009-03-05 2016-03-15 Pressco Ip Llc Digital heat injection by way of surface emitting semi-conductor devices
AT510486B1 (de) * 2010-09-15 2012-07-15 Reiterbauer Alois Verfahren zur trocknung und anlage zur durchführung des verfahrens
SE537400C2 (sv) * 2013-05-31 2015-04-21 Airwatergreen Ab Anordning och förfarande för att adsorbera vatten från en gas
CN112169555B (zh) * 2020-11-06 2024-05-28 中国人民解放军空军军医大学 一种制氧机的离心热反吹除湿机构

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