EP1930048B1 - Verfahren und Vorrichtung zum geregelten Zuführen von Zuluft - Google Patents

Verfahren und Vorrichtung zum geregelten Zuführen von Zuluft Download PDF

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Publication number
EP1930048B1
EP1930048B1 EP06125707A EP06125707A EP1930048B1 EP 1930048 B1 EP1930048 B1 EP 1930048B1 EP 06125707 A EP06125707 A EP 06125707A EP 06125707 A EP06125707 A EP 06125707A EP 1930048 B1 EP1930048 B1 EP 1930048B1
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EP
European Patent Office
Prior art keywords
air
inert gas
flow rate
room
volume flow
Prior art date
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EP06125707A
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German (de)
English (en)
French (fr)
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EP1930048A1 (de
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Amrona AG
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Amrona AG
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Publication date
Priority to DK06125707.7T priority Critical patent/DK1930048T3/da
Application filed by Amrona AG filed Critical Amrona AG
Priority to SI200631290T priority patent/SI1930048T1/sl
Priority to AT06125707T priority patent/ATE543541T1/de
Priority to PL06125707T priority patent/PL1930048T3/pl
Priority to EP06125707A priority patent/EP1930048B1/de
Priority to ES06125707T priority patent/ES2380458T3/es
Priority to UAA200814128A priority patent/UA93993C2/ru
Priority to JP2009539675A priority patent/JP4883184B2/ja
Priority to CN2007800240126A priority patent/CN101479011B/zh
Priority to PCT/EP2007/060117 priority patent/WO2008068076A1/de
Priority to RU2009112259/12A priority patent/RU2415690C2/ru
Priority to BRPI0712912-2A priority patent/BRPI0712912A2/pt
Priority to AU2007327712A priority patent/AU2007327712B2/en
Priority to CA2652772A priority patent/CA2652772C/en
Priority to KR1020097002722A priority patent/KR101373639B1/ko
Priority to MX2008014876A priority patent/MX2008014876A/es
Priority to US11/952,557 priority patent/US7717776B2/en
Publication of EP1930048A1 publication Critical patent/EP1930048A1/de
Priority to HK08109108.2A priority patent/HK1118025A1/xx
Priority to NO20090545A priority patent/NO339251B1/no
Application granted granted Critical
Publication of EP1930048B1 publication Critical patent/EP1930048B1/de
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

Definitions

  • the present invention relates to a method and a device for the controlled supply of supply air into a permanently inertized space in which a predetermined inerting level is set and to be maintained within a certain control range.
  • base inertization level generally means a reduced oxygen level in the room air of the shelter as compared to the oxygen level of the normal ambient air, but this reduced level of oxygen does not in principle imply any endangerment to persons or animals, so that these , although under certain circumstances with certain precautionary measures, can enter the shelter at least for a short time.
  • setting a base inertization level to an oxygen content of, for example, 13% by volume to 15% by volume serves primarily to reduce the risk of fire in the shelter.
  • the full inertization level is generally 11% by volume to 12% by volume oxygen concentration.
  • the minimum required air exchange for the room one in particular of the number and Duration of the people in the room is dependent function, which may in particular also vary over time.
  • a minimum air exchange is to be provided even in rooms, which are generally very rarely or never entered by persons, as is the case for example in storage rooms, archives or cable shafts.
  • the minimum air exchange is hereby particularly necessary in order to dissipate any harmful components of the room air, which arise, for example, by exhalations from the facilities contained in the room.
  • the term "technical ventilation” generally means a ventilation system for the extraction of hazardous substances or biological agents in a room.
  • the dimensioning of a technical ventilation system, i. in particular the flow rate, rate of change of air and speed of air, in rooms in which persons are present, depends on the time-weighted average concentration of a substance in the room air at which acute or chronic damage to the person's health is not to be expected. Ventilating the room enables the exchange of air between the exterior and interior.
  • inert gas technology in which a space at a basic or a full inerting level is permanently inertised to reduce the risk of fires, is associated with relatively high operating costs if a minimally required air exchange has to be taken into account in the permanently inertized room.
  • an object of the invention thus is to provide a method and a device which are designed to provide in a most effective and cost effective way a permanently inertized room with supply air, so that on the one hand complied with the prescribed air exchange rate of the room and on the other hand permanently the danger of a fire or an explosion in the room can be effectively suppressed.
  • volume flow rate or "air exchange rate” as used herein is to be understood in each case as the volume flow or air exchange provided per unit time.
  • supply rate is to be understood as the amount of supply air supplied per unit of time of the room air atmosphere, the term “amount of supply air” being understood to mean the total amount of air or gas supplied to the room air atmosphere.
  • supply air basically means that air or gas composition which is supplied to the permanently inertized space in order to remove unwanted pollutants, in particular toxic or otherwise harmful hazardous substances, biological agents and / or moisture (water vapor) ,
  • supplying the supply air serves to dissipate the toxic hazardous substances, gases and aerosols released over time into the ambient air atmosphere to the outside and thus "purify" the room air accordingly.
  • the value or the time average of the second volume flow rate at which the fresh air is supplied to the room air atmosphere depending on the required for the permanently inertized room minimum air exchange rate and in dependence From the value or the time average of the first volume flow rate at which the inert gas is supplied to the room air atmosphere to maintain the predetermined inerting, it is possible to supply the room atmosphere of the permanently inertized space per unit time exactly the amount of supply air actually required is to guarantee the required minimum air exchange.
  • the second volume flow rate is advantageously coupled to temporal variations of the required minimum air exchange rate and / or the first volume flow rate, it is also possible to take care of any temporal fluctuations of the minimum necessary air exchange.
  • the value or the temporal mean value of the second volume flow rate is set correspondingly in dependence on the current minimum air exchange rate required for the permanently inertized space and / or in dependence on the current value of the first volume flow rate.
  • value of the volume flow rate used in this specification is to be understood as meaning the (time) mean value of the volume flow provided per unit of time.
  • the minimal air exchange ie the air exchange, which is required to remove toxic or otherwise harmful hazardous substances, gases and / or aerosols (hereinafter also referred to as "hazardous substances" or “pollutants") to such an extent from the room air atmosphere, that the Concentration of hazardous substances in the indoor air atmosphere assumes a sufficiently low value at which from a medical point of view no danger to living beings is to be feared, for example in permanently inertized rooms, which are occasionally accessed by persons, in particular by the number of persons and / or the duration of the commission of the room and is in particular no temporally constant value.
  • the required minimum air exchange is also dependent on the emission rate of hazardous substances.
  • the value or the temporal mean value of the first volume flow rate at which the inert gas provided by the inert gas source is supplied to the room air atmosphere of the permanently inertized space via the first supply line system is adjusted such that the oxygen concentration in the permanently inertized room does not exceed a specifiable level.
  • This predeterminable level can correspond (with a certain control range), for example, to the inerting level already set in the permanently inertized space and to be maintained there.
  • int gas as used herein is to be understood as meaning, in particular, oxygen-reduced air.
  • oxygen-reduced air may be, for example, nitrogen-enriched air.
  • the minimum air exchange rate required for the permanently inertized room will be zero when there are no persons in the permanently inertized room, and therefore no components to be evacuated (carbon dioxide, moisture) will be generated in the room air atmosphere of the permanently inertized room become.
  • the value of the second volumetric flow rate at which fresh air is supplied to the room air atmosphere is then set to zero, while the value of the first volumetric flow rate at which the inert gas is supplied to the ambient air atmosphere assumes a value which is sufficient to reach the room air atmosphere to maintain the predetermined inerting level.
  • the value of the first volume flow rate at which the inert gas is supplied to the room air atmosphere must in principle assume a value which is sufficient to maintain the predetermined inerting level in the room air atmosphere.
  • Inert gas supply provides a certain contribution to the minimum air exchange required, according to the solution according to the invention the room air atmosphere of dauerinertarraen space basically only as much fresh air supplied, as it is just required to from the indoor air atmosphere the pollutant content dissipate, which has not already been discharged by supplying the inert gas, for example via a corresponding exhaust-discharge system.
  • the concentration of pollutants in the ambient air atmosphere is measured at one or more locations in permanently inertized space with one or more sensors, preferably continuously or at predetermined times or events.
  • an aspiratively operating pollutant measuring device with at least one and preferably a plurality of pollutant sensors operating in parallel is preferably used, wherein the pollutant concentration measured continuously or at predetermined times or events is forwarded as a measured value to at least one control unit.
  • the at least one control unit may be designed to regulate the value of the first volume flow rate at which the inert gas is supplied into the ambient air atmosphere of the permanently inertized space as a function of the inerting level to be maintained in the permanently inertized space.
  • the control unit is designed to use the value of the first volume flow rate at which the inert gas is supplied depending on the minimum air exchange rate required for the permanently inertized space and / or the value of the first volume flow rate the inert gas is supplied to regulate.
  • the value of the second volume flow rate in response to the current required for the permanently inertized space minimum air exchange rate and / or depending on the current value of the first flow rate is controlled accordingly.
  • control unit is preferably supplied with the measured pollutant concentration continuously or at predetermined times or events makes it possible for the control unit to operate in an advantageous manner Simultaneously with the measurement of the pollutant concentration for the permanently inertized room to determine or update the required minimum air exchange.
  • the value of the second volume flow rate at which the fresh air is supplied to the room air atmosphere is preferably continuously adjusted to the minimum required air exchange rate of the permanently inertized room.
  • the value of the supply rate ie the amount of supply air supplied to the permanently inertized space
  • the value of the second volume flow rate ie, the amount of inert gas supplied per unit time of the room air atmosphere
  • the minimum required feed rate is the amount of supply air to be supplied per unit time of the room air atmosphere of the permanently inertized room, which is just suitable for removing pollutants, etc., from the room air atmosphere to such an extent that the concentration of the pollutants in the room air atmosphere just assumes a value is harmless with regard to persons or goods stored in permanently inertised space.
  • the concentration of oxygen in the ambient air atmosphere is measured at one or more locations preferably continuously or at predetermined times or events. It would be conceivable here to provide preferably an aspirative oxygen measuring device with at least one and preferably a plurality of oxygen sensors operating in parallel, in order to be able to measure the oxygen concentration in the ambient air atmosphere of the permanently inertized space continuously or at predetermined times or events and forward the measured values to the control unit.
  • the control unit is aware of the current oxygen concentration in the room air atmosphere of the permanently inertized space, this can regulate the value of the first volume flow rate with which the inert gas is supplied to the room air atmosphere to a value which is suitable for the value specified in the permanently inertized space Inerting level (possibly within a certain range of rules).
  • the system according to the invention ensures adequate fire protection and - if the oxygen concentration corresponding to the given inerting level in the ambient air atmosphere is sufficient is low - also an explosion protection, although with regard to the indoor air atmosphere of dauerinertarrae space a regulated air exchange takes place.
  • the value of the second volume flow rate at which fresh air is supplied to the room air atmosphere is taken into account in the supply rate to be supplied to the room, and also the value of the first volume flow rate with which inert gas is supplied to the room air atmosphere is considered
  • the value of the second volume flow rate is ideally set to a value which is the difference between a minimum required supply air volume flow rate or supply rate for maintaining the required for the permanently inertized space minimum air exchange rate and / or the value of the first flow rate to maintain the predetermined Inerting levels.
  • the value of the second volume flow rate is deliberately chosen slightly larger in order to guarantee additional security with regard to the minimum required air exchange.
  • the aforementioned minimum required supply air volume flow rate or supply rate which is at least required to maintain the minimum air exchange rate required for the permanently inertized space, can be achieved in the inventive solution by means of the at least one control unit as a function of the measured values of the concentration of pollutants in the ambient air atmosphere of permanently inertized space.
  • a corresponding look-up table is provided in the control unit, with which a relationship between the measured pollutant concentration and the minimum required supply air flow rate is given.
  • the minimum required supply air flow rate is determined continuously or at predetermined times or events in the control unit.
  • the second volume flow rate to be provided with which the fresh air is supplied to the room air atmosphere, is determined in advance, in particular in the planning phase of the apparatus, depending on the known or possibly to be estimated minimum required air exchange rate. wherein in this determination, preferably, the tightness of the space envelope of dauerinertarraen space or the n 50 value of the room is taken into account.
  • control unit is preferably designed to increase the required for the permanently inertized space minimum air exchange rate with increasing concentration of pollutants in the indoor air atmosphere and lower accordingly with decreasing concentration of pollutants.
  • control unit should be designed to set the value of the second volume flow rate depending on the minimum air exchange rate and depending on the value of the first volume flow rate, preferably by driving a valve provided in the second supply line system such that the value of the second volume flow rate is greater than or is the same as the difference between the minimum required supply air flow rate to maintain the minimum air exchange required for the permanently inertized space and the first flow rate to maintain the predetermined inertization level in the room air atmosphere of the permanently inertized space.
  • control unit is designed, depending on the minimum air exchange rate and depending on the optionally already in the planning phase of the device set value of the second flow rate, preferably by driving a valve provided in the first supply line valve, the value of to set the first volumetric flow rate such that the value of the first volumetric flow rate is greater than or equal to the difference between the minimum required supply volumetric flow rate for maintaining the minimum air exchange required for the permanently inertized space and the predetermined second volumetric flow rate, of course not disregarded may be that the first volume flow rate should in principle assume a value that is necessary for maintaining the specified in the indoor air atmosphere of dauerinertarrae space inerting ch is.
  • At one or more locations in the first and second flow rates At least one sensor is provided to the second supply line system in each case, to the first or second flow rate preferably continuously or at predetermined times or events to measure and supply the measurement results of the control unit.
  • a fresh air source for example, a system in question, with which "normal" outside air is sucked in, so that in this case the fresh air provided by the fresh air source fresh air is outside air.
  • this further comprises an exhaust air discharge device which is designed to discharge exhaust air in a controlled manner from the room air atmosphere of the permanently inertized space.
  • This exhaust air removal device may for example be a ventilation system based on the principle of positive pressure ventilation, wherein by supplying supply air, a certain overpressure in the permanently inertized space is generated, so that due to the pressure difference, a part of the room air through a corresponding exhaust pipe system from the permanently inertized space is dissipated.
  • the exhaust air removal device has fans, etc., with which the discharged air is actively sucked.
  • the device for the regulated supply of supply air into the permanently inertized space further comprises an exhaust air discharge device
  • this additionally has an air treatment device in order to treat the exhaust air discharged from the room with the exhaust air discharge device and / or to filter, and then the inert gas source at least a portion of the treated or filtered exhaust air to be re-supplied as inert gas to be provided.
  • the air treatment device should be designed so as to filter out the toxic or harmful hazardous substances, gases and aerosols which may be present in the discharged exhaust air, so that the filtered exhaust air is directly suitable again as an inert gas.
  • the air treatment device has a molecular separation system, in particular a hollow-fiber membrane system, a molecular sieve system and / or an activated carbon adsorption system, so that the exhaust air discharged from the space can be filtered in a molecular manner.
  • a molecular separation system in particular a hollow-fiber membrane system, a molecular sieve system and / or an activated carbon adsorption system
  • the inert gas source used is an inert gas generator having a membrane system and / or an activated carbon adsorption system and the inert gas generator a compressed air mixture is supplied, wherein the inert gas generator emits a nitrogen-enriched air mixture
  • the inert gas supplied to the air mixture at least partially has the filtered exhaust air.
  • this at least one controllable exhaust damper in particular a mechanically, hydraulically or pneumatically actuated exhaust damper, which is controlled such that the exhaust air are discharged from the dauerinertarraen space in a controlled manner can. It would be conceivable to design the exhaust damper as a fire damper.
  • the device according to the invention which has the exhaust air discharge device and the air treatment device, it is preferably provided that the proportion of oxygen in the portion of the filtered exhaust air supplied as inert gas of the inert gas source is at most 5% by volume to provide a particularly economical device.
  • the oxygen content in the inert gas provided by the inert gas source is 2 to 5% by volume, and that the oxygen content in the fresh air provided by the fresh air source is about 21 vol .-%.
  • other values come into question here as well.
  • the inert gas which is possibly to be added to the supply of permanently inertized supply air, can be generated with appropriate facilities.
  • the method comprises the further method step of the controlled removal of exhaust air from the permanently inertized space with a corresponding exhaust air discharge device, and the further method step of filtering the discharged with the exhaust-discharge device from the exhaust air, wherein at least a portion of the filtered exhaust air is provided as an inert gas.
  • the oxygen content in the room air of the permanently inertized space is preferably measured continuously or at predetermined times or events, the method step of regulating the inert gas volume flow rate provided by the inert gas source or the method step of regulating the fresh air source provided fresh air flow rate as a function of the measured oxygen content takes place.
  • Fig. 1 is a schematic view of a first preferred embodiment of the device 1 according to the invention for the controlled supply of supply air in a permanently inertized space 10 is shown.
  • the device 1 for the regulated supply of supply air in the permanently inertized space 10 the function of a supply air control device, which is essentially a control unit 2, a fresh air source 5 for providing fresh air (in this case, outdoor air) and an inert gas source 3 for Providing an inert gas, such as nitrogen-enriched air.
  • a supply air control device which is essentially a control unit 2
  • a fresh air source 5 for providing fresh air (in this case, outdoor air)
  • an inert gas source 3 for Providing an inert gas, such as nitrogen-enriched air.
  • Both supply line systems 11, 12 connect the inert gas source 3 and the fresh air source 5 with an outlet nozzle system provided in the permanently inertized space 10 13th
  • the outlet nozzle system 13 is designed as a nozzle system that is used in common for the supply of inert gas and fresh air; Of course, it would also be conceivable to provide separate nozzle systems for this purpose.
  • valve V11 and V12 controllable by the control unit 2 are provided in each of the first and second supply line systems 11 and 12, a valve V11 and V12 controllable by the control unit 2 are provided.
  • the valve V11 provided in the first supply line system 11 is designed such that it can be controlled by the control unit 2 in order to feed the inert gas provided with the inert gas source 3 in a controlled manner at a first volume flow rate V N2 to the room air atmosphere of the permanently inertized space 10.
  • the valve V12 provided in the second supply line system 12 is designed such that it can be controlled by the control unit 2 to supply the fresh air (here outside air) provided with the fresh air source 5 in a regulated manner with a second volume flow rate V L of the room air atmosphere of the permanently inertized room 10 supply.
  • valves V11 and V12 are designed as shut-off valves, which can be switched between an open a closed state.
  • Fig. 4a and Fig. 4b are each shown in a time plot, as in this realization, the valve V11 and the valve V12 are opened or closed by control of the control unit 2. It can be seen here that the fresh air and the inert gas are emitted in a pulsed manner from the inert gas source 3 and the fresh air source 5, respectively.
  • valve V11 The control of the valve V11 provided in the first supply line system 11 takes place in particular with regard to the oxygen concentration (or with respect to the inert gas concentration) in the atmosphere of the permanently inertized space 10.
  • the valve V11 is set such that the first volume flow rate V supplied to the space 10 N2 assumes a value which is preferably just sufficient to maintain the predetermined inerting level (optionally with a specific control range) set in the ambient air atmosphere of the permanently inertized space 10.
  • an oxygen measuring device 7 ' with at least one and preferably a plurality of parallel operating oxygen sensors 7 to continuously or at predetermined times or events to measure the oxygen concentration in the ambient air atmosphere of the permanently inertized space 10, and to forward the measured values to the control unit 2.
  • the oxygen measuring device 7 ' is particularly preferably an aspirative operating system.
  • the minimum supply rate ie the amount of supply air to be supplied to the permanently inertized space 10
  • the minimum required Zu povertyrate is the Zu povertyrate, which is just suitable to dissipate from the indoor air atmosphere pollutants, etc. to an extent that the concentration of pollutants in the indoor air atmosphere assumes a value, with respect to people or in permanently inertized space 10 stored goods is harmless.
  • both the second volume flow rate V L with which the ambient air atmosphere fresh air and outside air is supplied, as well as the first volume flow rate V N2 , with which the room air atmosphere Inert gas is taken into account, is provided in the preferred embodiments of the invention that the provided in the second supply line 12 valve V12 is controlled by the control unit 2 such that the second volume flow rate V L takes a value or time average, which allows in that in principle only as much supply air is supplied to the space 10, which is actually required in order to guarantee the minimum air exchange.
  • the second volume flow rate V L in an ideal manner by a corresponding control of the valve V12 to a value of the difference between the minimum required supply air flow rate or Zu Kunststoffrate required to maintain the required for the permanently inertized space 10 minimum air exchange rate and the first flow rate V N2 to maintain the given inerting level corresponds.
  • the second volume flow rate V L is intentionally chosen slightly larger.
  • valves V11 and V12 are controlled such that for the first volume flow rate V N2 and the second volume flow rate V L with respect to the minimum required supply air volume flow rate or supply rate V F the following relationship applies: V N ⁇ 2 + V L ⁇ V F
  • the minimum required supply air volume flow rate V F can be determined by continuously measuring the pollutant concentration in the ambient air atmosphere of the permanently inertized space 10, for example with a pollutant measuring device 6 'which has at least one and preferably a plurality of pollutant sensors operating in parallel and the measured values are forwarded to the control unit 2. Like the oxygen measuring device 7 ', it is preferred that the pollutant measuring device 6' is designed as an aspiratively operating system.
  • the minimum required supply air volume flow rate V F corresponding to a table stored in the control unit 2 is determined preferably continuously or at predetermined times or events. In this table, a relationship between the measured pollutant concentration and the minimum required supply air flow rate V F should be specified. These Relationship may (but need not) be adapted to the characteristics of the room 10 in question, so that, for example, the volume of space, the use of space and other parameters may be taken into account.
  • control unit 2 is also conceivable for the control unit 2 to be designed as a function of the minimum air exchange rate or the minimum required supply air volume flow rate V F and depending on the value of the second volume flow rate V L , optionally already set in the planning phase of the device by controlling the valve V11 provided in the first supply line system 11, to set the value or time average of the first volume flow rate V N2 such that the value or time average of the first volume flow rate V N2 is greater than or equal to the difference between the minimum required Supply air volume flow rate V F for maintaining the minimum air change required for the permanently inertized space and the predetermined second flow rate V L is, of course, here can not be disregarded that the first flow rate V N2 in principle a value or should take a time average, which is required to maintain the given in the indoor atmosphere of the permanently inertized room inerting.
  • the value of the second volume flow rate V L depends on the value of the first volume flow rate V N2 . Accordingly, it is preferred that in particular continuously or at predetermined times or events with the aid of a suitable volume flow sensor S11 at one or more points in the first supply line system 11, the first volume flow rate V N2 measured and the measurement results of the control unit 2 are supplied. Of course, it would also be conceivable to determine the first volume flow rate V N2 as a function of the control signal which is applied by the control unit 2 to the volume flow regulator V11 provided in the first supply line system 11.
  • At least one sensor S12 is provided at one or more locations in the second supply line system 12 in order to measure the value of the second volume flow rate V L , preferably continuously or to a predetermined value Times or events, and to supply the measurement results of the control unit 2.
  • a corresponding supply air setting signal is input to the control unit 2, this supply air setting signal determining the minimum air exchange rate to be maintained for the permanently inertized space 10.
  • the supply air adjustment signal has information as to what value the first volume flow rate V N2 must have, so that the inerting level set in the permanently inertized space 10 (possibly with a certain control range) are maintained by continuously feeding inert gas can. In this case, the oxygen measuring device 7 ' would not be required.
  • the fresh air source 5 is in the in Fig. 1 illustrated embodiment with the control unit 2 controlled or controllable compressor, which is designed to suck "normal" outside air, and 12 depending on the control via the control unit 2 the second supply line 12 fresh air with a corresponding fresh air flow rate V L provides.
  • the inert gas source 3 is in Fig. 1 as an inert gas generator system which is composed of a compressor 3a "and a molecular separation system 3a 'controlled by the control unit 2, in particular a membrane system or activated carbon adsorption system With the compressor 3a" according to the first preferred embodiment "normal "Outside air compressed and then swept the Molekülseparationssystem 3a 'supplied.
  • the inert gas source 3 has an inert gas reservoir 3b, as in Fig. 1 indicated by dashed lines.
  • This inert gas reservoir 3b can be designed, for example, in the form of a gas cylinder battery.
  • the of the Inertgasreservoir 3b the Inert gas volume flow rate V N2 should be adjustable via the controllable by the control unit 2 control valve V11.
  • the value or the time average of the amount of supply air supplied to the permanently inertized space 10 per unit time is set so that on the one hand the pollutants present in the room air atmosphere of the permanently inertized space 10 can be dissipated in a sufficient manner, and on the other hand that in the permanently inertized space 10 set inerting level can be maintained.
  • the inventive solution in determining the value or the time average of the second volume flow rate V L not only the proportion of pollutants to be removed from the room air atmosphere of dauerinertarraen space 10, but also the value or the time average of the first flow rate V N2 , with which the inert gas is supplied to the room air atmosphere, taken into account that the first volume flow rate V N2 provides a certain contribution to the minimum required air exchange, so that the room air atmosphere of the permanently inertized room 10 basically only as much fresh air is supplied, as is currently required in order to remove the pollutant component from the room air atmosphere which has not already been removed by supplying the inert gas via a corresponding exhaust air removal system 4.
  • an exhaust air discharge device 4 in the form of an exhaust air flap, in which exhaust air is removed from the permanently inertized space 10, is also provided in the permanently inertized space 10.
  • the exhaust air discharge device 4 is a passively operating system which functions according to the overpressure principle.
  • the exhaust air flap of the exhaust air discharge device 4 is designed as a check valve flap.
  • the ambient air atmosphere of the permanently inertized space 10 basically only as much fresh air or outside air is supplied, as is currently required to take care of the required minimum air exchange. If, for example, a fresh air input of 1000 m 3 / day is required for the permanently inertized space 10 as the minimum required air exchange, then it would be conceivable in the space 10 per day for example 700 m 3 outside air and 300 m 3 nitrogen-enriched air or to introduce oxygen-reduced air. As oxygen-reduced air, for example Air with a nitrogen content of 90 to 95 vol .-% used. The proportion of oxygen-reduced air is calculated on the basis of the residual oxygen concentration of the oxygen-reduced air, the basic inerting level to be set in the room, the volume of the room and the tightness of the room.
  • FIG. 2 is a preferred evolution of in Fig. 1 shown first embodiment of the device 1 according to the invention.
  • the Fig. 2 shown second embodiment differs from the first embodiment according to Fig. 1
  • the fact that the discharged with the exhaust-discharge device 4 from the permanently inertized space 10 exhaust air is not completely discharged to the outside atmosphere, but at least partially passed through a filter system 15 and then the first supply line 11 via the provided in the first supply line 11 controllable valve V11 again is supplied.
  • inert gas feedback is thus a part of the exhaust air, which is discharged during the regulated air exchange with the exhaust air removal system 4 from the permanently inertized chamber 10, cleaned accordingly in the filter system 15 and then fed again to the permanently inertized space 10 as an inert gas.
  • the toxic or harmful hazardous substances to be removed from the permanently inertized space 10 are to be separated from the exhaust air, so that the thus cleaned exhaust air can then be returned to the space 10 directly in an ideal manner , Since this purified exhaust air has an oxygen content which is identical to the oxygen content in the room air atmosphere of the permanently inertized space 10, in a case where the inert gas feedback is lossless and thus must be regarded as an overall closed feedback loop, and if the permanently inertized space 10 has a completely gas-tight space envelope, from the inert gas source 3 no additional inert gas and the fresh air source 5 no additional fresh air to the cleaned exhaust air are mixed to take care on the one hand the required minimum air exchange and on the other hand to keep the set in the permanently inertized space 10 inerting.
  • a fresh air source 5 and an inert gas source 3 are each controlled by the control unit 2, and their associated gas flow rates V N2 , V L each set either by an effected with the control unit 2 direct control, or by an effected with the control unit 2 control of the corresponding valves V11 and V12 become.
  • a controllable with the control unit 2 three-way valve V4 is provided, via which the proportion of discharged from the dauerinertarraen space 10 exhaust air is adjusted, which is the filter system 15 of the inert gas feedback loop to be supplied, and which is finally reintroduced into the room 10 as purified supply air.
  • the filter system 15 provided in the inert gas feedback loop must be designed to separate the toxic contaminant contained in the portion of the exhaust air fed into the inert gas feedback loop from the exhaust air.
  • an air treatment device 15 which has a Molekülseparationssystem 15 ', in particular a hollow fiber membrane system and / or an activated carbon adsorption system.
  • the air treatment device 15 is further equipped with a compressor 15 "which compresses the portion of the exhaust air fed into the inert gas feedback loop and subsequently supplies it to the molecular separation system 15 '.
  • the compressed exhaust air is split in molecular terms so that the toxic or harmful components (pollutants) of the exhaust air discharged from the permanently inertized space 10 are separated from the exhaust air and discharged to the outside via a first outlet.
  • a second outlet of the molecule separation system 15 ' can be connected to the first supply line system 11 via the valve V11, so that the purified exhaust air can be at least partially supplied to the first supply line system 11 as an inert gas.
  • Fig. 3 a preferred development of the second embodiment is shown. It is provided that - as well as in the first and second embodiment according to Fig. 1 and Fig. 2 an inert gas generator 3a with a molecular separation system 3a 'is provided as the inert gas source, in particular with a hollow fiber membrane system or an activated carbon adsorption system, wherein a compressed air mixture is supplied to the inert gas generator 3a and the inert gas generator 3a emits a nitrogen-enriched air mixture, and wherein the Inertgasgenerator 3 a discharged and enriched with nitrogen air mixture is fed in a controlled manner to the first supply line system 11 and the permanently inertized space 10 as an inert gas.
  • an inert gas generator 3a with a molecular separation system 3a ' is provided as the inert gas source, in particular with a hollow fiber membrane system or an activated carbon adsorption system, wherein a compressed air mixture is supplied to the inert gas generator 3a and the in
  • an exhaust-removal device 4 is provided, which is designed in a controlled manner, preferably based on the overpressure principle, exhaust air from the dauerinertarraen space 10 dissipate and run the exhausted air at least partially by an air treatment device 15 to this part of the Extract air discharge device 4 to filter out of the room 10 exhaust air. At least part of the filtered exhaust air is then fed to the compressor 3a "of the inert gas source 3.
  • the provided in the inert gas or exhaust air feedback loop air treatment device 15 does not have a in Fig. 2 with the reference numeral 15 "designated compressor and with a in Fig. 2 be designated by the reference numeral 15 'molecular separation system to separate via a suitable gas separation process contained in the proportion of discharged from the permanently inertized space 10 and fed into the inert gas or exhaust air feedback loop toxic or harmful pollutants from the exhaust air.
  • the exhaust air fed into the inert gas generator 3a ', 3a "already has an oxygen content which is essentially identical to the oxygen content of the inert gas source 3 formed as an inert gas generator 3a', 3a"
  • Ambient air atmosphere of the permanently inertized space 10 the molecular separation system 3a 'of the inert gas source 3 is primarily the task of separating the optionally still present in the exhaust air (in particular gaseous) components of the toxic or harmful pollutants, if they are not already in the air treatment device 15th were removed from the exhaust air.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Ventilation (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Nozzles (AREA)
  • Air Conditioning Control Device (AREA)
EP06125707A 2006-12-08 2006-12-08 Verfahren und Vorrichtung zum geregelten Zuführen von Zuluft Active EP1930048B1 (de)

Priority Applications (19)

Application Number Priority Date Filing Date Title
SI200631290T SI1930048T1 (sl) 2006-12-08 2006-12-08 Postopek in naprava za regulirano dovajanje dovodnega zraka
AT06125707T ATE543541T1 (de) 2006-12-08 2006-12-08 Verfahren und vorrichtung zum geregelten zuführen von zuluft
PL06125707T PL1930048T3 (pl) 2006-12-08 2006-12-08 Sposób i urządzenie do regulowanego doprowadzenia powietrza dopływającego do pomieszczenia
EP06125707A EP1930048B1 (de) 2006-12-08 2006-12-08 Verfahren und Vorrichtung zum geregelten Zuführen von Zuluft
ES06125707T ES2380458T3 (es) 2006-12-08 2006-12-08 Método y dispositivo para la alimentación regulada de suministro de aire
DK06125707.7T DK1930048T3 (da) 2006-12-08 2006-12-08 Fremgangsmåde og anordning til reguleret tilførsel af tilgangsluft
JP2009539675A JP4883184B2 (ja) 2006-12-08 2007-09-24 補給空気を調節下に供給するための方法および装置
CN2007800240126A CN101479011B (zh) 2006-12-08 2007-09-24 用于供气调节供给的方法和装置
PCT/EP2007/060117 WO2008068076A1 (de) 2006-12-08 2007-09-24 Verfahren und vorrichtung zum geregelten zuführen von zuluft
RU2009112259/12A RU2415690C2 (ru) 2006-12-08 2007-09-24 Способ и устройство для регулируемой подачи приточного воздуха
UAA200814128A UA93993C2 (ru) 2006-12-08 2007-09-24 Устройство и способ регулируемой подачи воздуха
BRPI0712912-2A BRPI0712912A2 (pt) 2006-12-08 2007-09-24 método e d ispositivo para a alimentação regulada de ar suprido
AU2007327712A AU2007327712B2 (en) 2006-12-08 2007-09-24 Method and device for the regulated supply of incoming air
CA2652772A CA2652772C (en) 2006-12-08 2007-09-24 Method and device for the regulated feed of supply air
KR1020097002722A KR101373639B1 (ko) 2006-12-08 2007-09-24 급기의 조절된 공급을 위한 방법 및 장치
MX2008014876A MX2008014876A (es) 2006-12-08 2007-09-24 Metodo y dispositivo para la alimentacion regulada de aire de suministro.
US11/952,557 US7717776B2 (en) 2006-12-08 2007-12-07 Method and apparatus for supplying additional air in a controlled manner
HK08109108.2A HK1118025A1 (en) 2006-12-08 2008-08-15 Method and device for regulated feeding of supply air
NO20090545A NO339251B1 (no) 2006-12-08 2009-02-03 Metode og innretning for regulert tilførsel av luft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06125707A EP1930048B1 (de) 2006-12-08 2006-12-08 Verfahren und Vorrichtung zum geregelten Zuführen von Zuluft

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EP1930048A1 EP1930048A1 (de) 2008-06-11
EP1930048B1 true EP1930048B1 (de) 2012-02-01

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EP (1) EP1930048B1 (es)
JP (1) JP4883184B2 (es)
KR (1) KR101373639B1 (es)
CN (1) CN101479011B (es)
AT (1) ATE543541T1 (es)
AU (1) AU2007327712B2 (es)
BR (1) BRPI0712912A2 (es)
CA (1) CA2652772C (es)
DK (1) DK1930048T3 (es)
ES (1) ES2380458T3 (es)
HK (1) HK1118025A1 (es)
MX (1) MX2008014876A (es)
NO (1) NO339251B1 (es)
PL (1) PL1930048T3 (es)
RU (1) RU2415690C2 (es)
SI (1) SI1930048T1 (es)
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Publication number Publication date
JP4883184B2 (ja) 2012-02-22
ATE543541T1 (de) 2012-02-15
MX2008014876A (es) 2008-12-05
EP1930048A1 (de) 2008-06-11
AU2007327712B2 (en) 2011-12-08
UA93993C2 (ru) 2011-03-25
RU2415690C2 (ru) 2011-04-10
HK1118025A1 (en) 2009-01-30
CN101479011A (zh) 2009-07-08
NO20090545L (no) 2009-02-03
KR20090106447A (ko) 2009-10-09
AU2007327712A1 (en) 2008-06-12
JP2010511447A (ja) 2010-04-15
CA2652772A1 (en) 2008-06-12
NO339251B1 (no) 2016-11-21
RU2009112259A (ru) 2010-09-27
CA2652772C (en) 2014-07-29
PL1930048T3 (pl) 2012-05-31
BRPI0712912A2 (pt) 2012-10-02
ES2380458T3 (es) 2012-05-11
US20080135265A1 (en) 2008-06-12
KR101373639B1 (ko) 2014-03-12
US7717776B2 (en) 2010-05-18
SI1930048T1 (sl) 2012-04-30
WO2008068076A1 (de) 2008-06-12
DK1930048T3 (da) 2012-04-10
CN101479011B (zh) 2012-09-05

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