EP2505735A1 - Anti-smoke pressure assembly and method for keeping an escape route free of smoke - Google Patents

Anti-smoke pressure assembly and method for keeping an escape route free of smoke Download PDF

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Publication number
EP2505735A1
EP2505735A1 EP12157874A EP12157874A EP2505735A1 EP 2505735 A1 EP2505735 A1 EP 2505735A1 EP 12157874 A EP12157874 A EP 12157874A EP 12157874 A EP12157874 A EP 12157874A EP 2505735 A1 EP2505735 A1 EP 2505735A1
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EP
European Patent Office
Prior art keywords
supply air
escape space
installation according
height
smoke
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EP12157874A
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German (de)
French (fr)
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EP2505735B1 (en
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Jürgen Eidmann
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/04—Air-ducts or air channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/34—Responding to malfunctions or emergencies to fire, excessive heat or smoke by opening air passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/001—Ventilation with exhausting air ducts

Definitions

  • the invention relates to a smoke protection pressure system for a building, which has at least one in case of fire to be acted upon by pressure escape space, with at least one the escape space in case of fire with supply air acting on Zu povertyventilator and a control valve device which has at least one control valve which opens when exceeding a limit overpressure and at Below the limit overpressure closes.
  • building means in particular, buildings with a multiplicity of floors, which are connected to one another via one or more staircases. These staircases form refuge rooms, which are to be kept free of smoke in case of fire.
  • the smoke protection system is therefore designed as a smoke protection differential pressure system, which is ensured by the set pressure in the area of the escape room smoke control in case of fire.
  • a permissible maximum value eg 50 Pa.
  • a control valve device is provided, which is preferably equipped with spring-loaded control valves in the context of the invention, so that an automatic air removal excess air is taken care of.
  • a flap device responds very quickly, so that it can respond quickly to the opening and closing of doors.
  • Such a smoke protection printing system is for example from the DE 10 2005 053 590 B4 known.
  • the escape area eg the staircase
  • a mechanical supply air system of the type described is equipped with a mechanical supply air system of the type described.
  • an exhaust air damper device is provided, but not the escape space, but a Is associated with the exhaust duct, via which the smoke extraction of possible fire areas should take place.
  • Crawl spaces in high-rise buildings are subject to weather conditions, provided they have openings to the free atmosphere.
  • inside temperature outside temperature
  • the pressure conditions in the escape area remain unaffected.
  • z. B. at high outdoor temperatures in summer or at low outdoor temperatures in winter in particular convection influences lead to different flow effects. This leads over the height of the escape space to different pressure conditions, so that the function of the smoke protection pressure system may no longer be guaranteed, especially if the overpressure locally exceeds the predetermined limit pressure, so then the permissible door opening forces are exceeded.
  • the invention has for its object to provide a smoke protection printing system for a building of the type described above, which ensures a simple structure even with different weather conditions and in particular outdoor temperatures flawless smoke control without the problems observed in practice occur with inadmissibly high door opening forces.
  • the invention teaches in a generic smoke protection system of the type described above that distributed over the height of the escape space several Zu Kunststoffauslässe are arranged, which are controlled as unregulated Zu Kunststoffauslässe regardless of pressure fluctuations in the stairwell.
  • the supply air outlets for generating a variable over the escape space height Zu Kunststoffver republic depending on the outdoor temperature individually or in groups can be controlled variably.
  • the supply air outlets can be equipped with individually or in groups controllable inlet flaps.
  • the regulation takes place exclusively via the control flap device which is provided anyway in the escape area and which is regulable for opening and closing doors.
  • the air outlets have no control function, so that the sensitive control loop is not disturbed.
  • the use of several different control loops is expressly avoided, so that a no longer controllable influencing different control circuits is omitted. Nevertheless, it is possible to react variably to outside temperature fluctuations by providing a height-weighted supply air volume flow distribution.
  • the inlet flaps are preferred as a motor-operated flaps, z.
  • continuously or continuously opening flaps, z. B. shutter valves are used, but - as explained - are always operated unregulated.
  • the fan is preferably connected via at least one common supply air shaft with the Zu Kunststoffauslässen.
  • This supply air duct preferably extends over the entire height or at least substantially the entire height of the escape space. In any case, it is expedient if the supply air duct extends over the height of the escape space, in the doors to z. B. adjacent fire areas are provided.
  • the total volume flow of the supply air is adjustable depending on the outside temperature, z. B. on the supply air fan.
  • temperature fluctuations eg summer / winter
  • the total volume flow of the supply air can be adapted to the outside temperature. So it is advantageous to select a higher supply air volume flow at low outside temperatures than at low outside temperatures.
  • the fan is operated by a variable-speed control device.
  • the supply air fan or its control device may be equipped with a frequency converter.
  • an outside temperature sensor is particularly preferably provided, which is connected to the fan or its control device, so that the fan speed and thus the supply air volume flow can be made variable depending on the outside temperature. If the (exact) temperature difference is taken into account, an internal temperature sensor may additionally be provided.
  • control flap device used in the invention can be made of conventional flap control devices.
  • the control valves can be controlled by motor.
  • preferably spring-loaded, automatically opening and closing control valves are provided, as for example in the DE 10 2005 053 590 B4 or the DE 10 2005 011 791 A1 to be discribed.
  • the invention also provides a method for keeping smoke in an escape space, in particular using the described smoke protection printing system, wherein the escape space is exposed to an overpressure in case of fire, which does not exceed a predetermined limit pressure.
  • This method is inventively characterized in that the supply air over several distributed over the height of the escape space, unregulated air outlets, z. B. is supplied with dependent on the outside temperature variable supply air distribution.
  • the core of the method according to the invention is consequently, in particular, the uncontrolled inflow, preferably with an intake air volume flow distribution which is weighted over the height, that is to say variably / variably adaptable to the circumstances.
  • the total volume flow of the supply air can be set as a function of the outside temperature.
  • FIG. 1 is greatly simplified, schematically represented a stairwell as the escape room 1 of a building.
  • the use units which are arranged in the individual storeys and which are connected to the staircase via doors are usually adjacent to such a stairwell 1. Details are not shown.
  • the stairwell 1 forms a refuge, which is acted upon in the event of fire with overpressure.
  • a Zuluftventilator 2 is provided at the foot of the stairwell.
  • a regulating flap device 3 is connected to the escape space 1, which is only shown in simplified form. It is located at the top of the stairwell.
  • This control flap device 3 has at least one control flap, which opens when exceeding a limit overpressure and closes when it falls below the limit overpressure. This can be realized via automatically opening and closing, spring-loaded control valves. Details are given for example in the DE 10 2005 011 791 A1 described.
  • FIG. 1 It can be seen that the escape space 1 is equipped with several distributed over the height Zu Kunststoffauslässen 4. These supply air outlets 4 are connected via a common supply air shaft 5 with the fan 2. The height H of the escape space is also indicated.
  • the supply air outlets 4 are now individually or in groups depending on the outdoor temperature variable controllable.
  • the supply air outlets 4 may be equipped, for example, with supply air flaps, not shown, which are actuated by a motor and consequently can be opened and closed by a motor, whereby the individual supply flaps can be opened and closed independently of each other.
  • This results from a comparative analysis of the FIGS. 1 to 3 because the supply air distribution is set variable depending on the outside temperature.
  • FIG. 1 shows the isothermal case, ie the outside temperature corresponds to the inside temperature.
  • the thermal effects within the stairwell 1 are negligible, so that the supply air over the height H is evenly distributed in the escape space 1 is blown.
  • All air outlets 4 are operated with the same setting, that is all supply air dampers are located approximately in the same position. It is again pointed out that the setting of these supply flaps is unregulated and thus independent of the local or time-dependent pressure fluctuations in the refuge. The pressure fluctuations occurring by opening and closing the doors are compensated exclusively by means of the control valve device.
  • the supply air In summer operation, that is at outdoor temperatures that are (significantly) above the indoor temperatures, the supply air should no longer be distributed homogeneously over the entire height H of the escape space, but it is expedient to supply supply air in particular in the upper part of the stairwell.
  • the supply air outlets 4 or their inlet flaps are consequently activated in the desired manner. This is in FIG. 2 indicated.
  • FIG. 3 indicates that the supply air volume flow distribution can be tailored to the outside temperature or the temperature difference.
  • this second aspect of the invention can be realized for example by the fact that the supply air fan is operated speed-dependent by z.
  • a control device is provided with a frequency converter, said controller via an outside temperature sensor, the fan speed and thus the supply air volume flow made variable. Details are not shown.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The smoke pressure control system has air supply fan (2) and control valve device (3) which are attached in stair space (1). The control valve device is provided with a control valve which is opened and closed corresponding to pressure fluctuations. Several air discharge openings (4) are provided in stair space, which are connected over a common supply air shaft (5) with respect to air supply fan. An independent claim is included for smoke pressure control method.

Description

Die Erfindung betrifft eine Rauchschutzdruckanlage für ein Gebäude, welches zumindest einen im Brandfall mit Überdruck zu beaufschlagenden Fluchtraum aufweist, mit zumindest einem den Fluchtraum im Brandfall mit Zuluft beaufschlagenden Zuluftventilator und einer Regelklappenvorrichtung, welche zumindest eine Regelklappe aufweist, welche bei Überschreitung eines Grenzüberdrucks öffnet und bei Unterschreitung des Grenzüberdrucks schließt.The invention relates to a smoke protection pressure system for a building, which has at least one in case of fire to be acted upon by pressure escape space, with at least one the escape space in case of fire with supply air acting on Zuluftventilator and a control valve device which has at least one control valve which opens when exceeding a limit overpressure and at Below the limit overpressure closes.

Gebäude meint im Rahmen der Erfindung insbesondere Gebäude mit einer Vielzahl von Etagen, welche über ein oder mehrere Treppenräume miteinander verbunden sind. Diese Treppenräume bilden Fluchträume, welche im Brandfall von Rauch freizuhalten sind. Die Rauchschutzanlage ist daher als Rauchschutz-Differenzdruckanlage ausgebildet, wobei durch den eingestellten Überdruck im Bereich des Fluchtraumes eine Rauchfreihaltung im Brandfall gewährleistet ist. Aus Sicherheitsgründen darf der für die Rauchfreihaltung erforderliche Überdruck einen zulässigen Maximalwert (z. B. 50 Pa) nicht überschreiten. Aus diesem Grunde ist eine Regelklappenvorrichtung vorgesehen, welche im Rahmen der Erfindung bevorzugt mit federbelasteten Regelklappen ausgerüstet ist, sodass für eine selbsttätige Luftabfuhr überschüssiger Luft gesorgt wird. Eine solche Regelklappenvorrichtung spricht sehr schnell an, sodass sie auch schnell auf das Öffnen und Schließen von Türen reagieren kann.In the context of the invention, building means, in particular, buildings with a multiplicity of floors, which are connected to one another via one or more staircases. These staircases form refuge rooms, which are to be kept free of smoke in case of fire. The smoke protection system is therefore designed as a smoke protection differential pressure system, which is ensured by the set pressure in the area of the escape room smoke control in case of fire. For safety reasons, the overpressure required for keeping smoke free must not exceed a permissible maximum value (eg 50 Pa). For this reason, a control valve device is provided, which is preferably equipped with spring-loaded control valves in the context of the invention, so that an automatic air removal excess air is taken care of. Such a flap device responds very quickly, so that it can respond quickly to the opening and closing of doors.

Eine derartige Rauchschutzdruckanlage ist beispielsweise aus der DE 10 2005 053 590 B4 bekannt. Bei dieser bekannten Anlage ist der Fluchtraum (z. B. das Treppenhaus) mit einer maschinellen Zuluftanlage der beschriebenen Art ausgestattet. Ergänzend ist eine Abluft-Regelklappenvorrichtung vorgesehen, die jedoch nicht dem Fluchtraum, sondern einem Abluftkanal zugeordnet ist, über den die Entrauchung möglicher Brandräume erfolgen soll.Such a smoke protection printing system is for example from the DE 10 2005 053 590 B4 known. In this known system, the escape area (eg the staircase) is equipped with a mechanical supply air system of the type described. In addition, an exhaust air damper device is provided, but not the escape space, but a Is associated with the exhaust duct, via which the smoke extraction of possible fire areas should take place.

Fluchträume in Hochhäusern (z. B. Treppenräume, aber auch Lüftungs- und Aufzugschächte) unterliegen Witterungseinflüssen, sofern sie Öffnungen zur freien Atmosphäre aufweisen. Im isothermen Fall (Innentemperatur = Außentemperatur) bleiben die Druckverhältnisse im Fluchtraum unbeeinflusst. Bei Unterschieden zwischen Innentemperatur und Außentemperatur, z. B. bei hohen Außentemperaturen im Sommer oder bei niedrigen Außentemperaturen im Winter, führen insbesondere Konvektionseinflüsse zu verschiedenen Durchströmungseffekten. Dieses führt über die Höhe des Fluchtraumes zu unterschiedlichen Druckverhältnissen, sodass die Funktion der Rauchschutzdruckanlage evtl. nicht mehr gewährleistet werden kann, und zwar insbesondere dann, wenn der Überdruck lokal den vorgegebenen Grenzüberdruck überschreitet, sodass dann die zulässigen Türöffnungskräfte überschritten werden. Ähnliches gilt, wenn lokal unzulässiger Unterdruck entsteht, sodass Rauch in den Treppenraum eintreten kann.Crawl spaces in high-rise buildings (eg staircases, but also ventilation and elevator shafts) are subject to weather conditions, provided they have openings to the free atmosphere. In the isothermal case (inside temperature = outside temperature), the pressure conditions in the escape area remain unaffected. For differences between internal temperature and outside temperature, z. B. at high outdoor temperatures in summer or at low outdoor temperatures in winter, in particular convection influences lead to different flow effects. This leads over the height of the escape space to different pressure conditions, so that the function of the smoke protection pressure system may no longer be guaranteed, especially if the overpressure locally exceeds the predetermined limit pressure, so then the permissible door opening forces are exceeded. The same applies if locally inadmissible negative pressure arises, so that smoke can enter the stairwell.

Ausgehend von dieser Problematik wird in der DE 201 13 242 U2 bei einem Sicherheitstreppenraum für ein Hochhaus vorgeschlagen, eine Zufuhr von Außenluft am Fuß des Treppenraumes und eine Luftabfuhr aus einer geregelten Überdruckklappe am Kopf des Treppenraumes vorzusehen, wobei ergänzend im Bereich der Zuluftzufuhr eine Zuluftregelklappe vorgesehen ist. Die beiden Regelklappen sollen über hochwertige, schnelle Regelkreise den Überdruck im Fuß- und im Kopfbereich des Treppenraumes regeln. Optional wird vorgeschlagen, eine weitere Zuluftregelklappe in mittlerer Höhe des Treppenraumes vorzusehen, sodass dann drei Regelklappen gemeinsam auf dem Fluchtraum arbeiten. Im Übrigen wird vorgeschlagen, parallel zum Treppenraum einen Luftkanal vom Fuß bis mittlerer Höhe vorzusehen, der kalibrierte oder auch gesteuerte Auslässe in verschiedenen Höhen aufweisen soll. Die bekannte Anlage ist verhältnismäßig aufwendig und die im Zusammenhang mit Witterungseinflüssen auftretenden Probleme lassen sich dadurch nicht ohne Weiteres vermeiden. - Hier setzt die Erfindung ein.Starting from this problem becomes in the DE 201 13 242 U2 proposed in a security staircase space for a high-rise, to provide a supply of outside air at the foot of the stairwell and an air discharge from a controlled pressure flap on the head of the stairwell, with a Zuluftregelklappe is additionally provided in the supply air. The two control valves are intended to control the overpressure in the foot and head area of the stairwell via high-quality, fast control loops. Optionally, it is proposed to provide a further supply air control flap in the middle height of the stairwell, so that then three control valves work together on the escape space. Incidentally, it is proposed to provide parallel to the stairwell an air channel from the foot to middle height, the calibrated or should have controlled outlets at different heights. The known system is relatively expensive and the problems that occur in connection with the weather can not be avoided without further ado. - This is where the invention starts.

Der Erfindung liegt die Aufgabe zugrunde, eine Rauchschutzdruckanlage für ein Gebäude der eingangs beschriebenen Art zu schaffen, welche bei einfachem Aufbau auch bei unterschiedlichsten Witterungsverhältnissen und insbesondere Außentemperaturen eine einwandfreie Rauchfreihaltung gewährleistet, ohne dass die in der Praxis beobachteten Probleme mit unzulässig hohen Türöffnungskräften auftreten.The invention has for its object to provide a smoke protection printing system for a building of the type described above, which ensures a simple structure even with different weather conditions and in particular outdoor temperatures flawless smoke control without the problems observed in practice occur with inadmissibly high door opening forces.

Zur Lösung dieser Aufgabe lehrt die Erfindung bei einer gattungsgemäßen Rauchschutzanlage der eingangs beschriebenen Art, dass im Fluchtraum über dessen Höhe verteilt mehrere Zuluftauslässe angeordnet sind, welche als ungeregelte Zuluftauslässe unabhängig von Druckschwankungen im Treppenraum ansteuerbar sind. Vorzugsweise sind die Zuluftauslässe zur Erzeugung einer über die Fluchtraumhöhe variablen Zuluftverteilung in Abhängigkeit von der Außentemperatur einzeln oder in Gruppen variabel ansteuerbar. Die Zuluftauslässe können dazu mit einzeln oder in Gruppen ansteuerbaren Zuluftklappen ausgerüstet sein. Auf diese Weise besteht zunächst einmal die Möglichkeit, in Abhängigkeit von der Außentemperatur bzw. in Abhängigkeit zwischen der Differenz zwischen Außentemperatur und Innentemperatur gezielt Einfluss auf die Zuluftverteilung über die Höhe des Treppenraumes zu nehmen und die Zuluftverteilung "gewichtet" an die Verhältnisse anzupassen, indem je nach Witterungsverhältnissen nicht nur eine homogene, sondern insbesondere auch eine veränderbare, inhomogene Zuluftverteilung über die Höhe realisiert wird. Von besonderer Bedeutung ist dabei außerdem die Tatsache, dass die Zuluftzufuhr ungeregelt erfolgt, das heißt die Zuluftauslässe selbst arbeiten ungeregelt, das heißt die Zuluftauslässe sind zwar in Abhängigkeit von der Außentemperatur einzeln ansteuerbar, die Ansteuerung erfolgt jedoch unabhängig von Druckschwankungen im Fluchtraum, die z. B. auftreten, wenn Türen, Fenster oder dergleichen im Fluchtraum geöffnet werden. Die Regelung erfolgt ausschließlich über die im Fluchtraum ohnehin vorgesehene Regelklappenvorrichtung, welche auf sich öffnende und schließende Türen regelfähig ist. Den Luftauslässen kommt keinerlei Regelfunktion zu, sodass der empfindliche Regelkreis nicht gestört wird. Insbesondere wird der Einsatz mehrerer unterschiedlicher Regelkreise ausdrücklich vermieden, sodass eine nicht mehr zu kontrollierende Beeinflussung verschiedener Regelkreise unterbleibt. Dennoch kann variabel auf Außentemperaturschwankungen reagiert werden, indem für eine über die Höhe gewichtete Zuluft-Volumenstromverteilung gesorgt wird.To solve this problem, the invention teaches in a generic smoke protection system of the type described above that distributed over the height of the escape space several Zuluftauslässe are arranged, which are controlled as unregulated Zuluftauslässe regardless of pressure fluctuations in the stairwell. Preferably, the supply air outlets for generating a variable over the escape space height Zuluftverteilung depending on the outdoor temperature individually or in groups can be controlled variably. The supply air outlets can be equipped with individually or in groups controllable inlet flaps. In this way, it is initially possible, depending on the outside temperature or as a function of the difference between the outside temperature and inside temperature to influence the supply air distribution over the height of the staircase and to adjust the supply air distribution "weighted" to the conditions, by depending not only a homogeneous, but in particular a variable, inhomogeneous supply air distribution over the height is realized according to weather conditions. Of particular importance is also the fact that the supply air is unregulated, that is, the supply air outlets work themselves unregulated, that is, the supply air outlets are individually controllable depending on the outside temperature, but the control is independent of pressure fluctuations in the refuge, the z. B. occur when doors, windows or the like are opened in the refuge. The regulation takes place exclusively via the control flap device which is provided anyway in the escape area and which is regulable for opening and closing doors. The air outlets have no control function, so that the sensitive control loop is not disturbed. In particular, the use of several different control loops is expressly avoided, so that a no longer controllable influencing different control circuits is omitted. Nevertheless, it is possible to react variably to outside temperature fluctuations by providing a height-weighted supply air volume flow distribution.

Die Zuluftklappen sind bevorzugt als motorisch betätigbare Klappen, z. B. Jalousieklappen, ausgebildet. Diese lassen sich motorisch öffnen und schließen, wobei auch Zwischenstellungen möglich sind. Insbesondere können kontinuierlich bzw. stufenlos zu öffnende Klappen, z. B. Jalousieklappen verwendet werden, die jedoch - wie erläutert - stets ungeregelt betrieben werden. Der Ventilator ist dabei vorzugsweise über zumindest einen gemeinsamen Zuluftschacht mit den Zuluftauslässen verbunden. Dieser Zuluftschacht erstreckt sich vorzugsweise über die gesamte Höhe oder zumindest im Wesentlichen die gesamte Höhe des Fluchtraumes. Jedenfalls ist es zweckmäßig, wenn sich der Zuluftschacht über die Höhe des Fluchtraumes erstreckt, in der Türen zu z. B. angrenzenden Brandräumen vorgesehen sind. Stets ist es zweckmäßig, eine Vielzahl von Luftauslässen (mit z. B. Zuluftklappen) über die Höhe des Fluchtraumes zu verteilen. So kann es zweckmäßig sein, pro Geschoss des Fluchtraumes (z. B. Treppenraumes) jeweils zumindest einen Luftauslass vorzusehen. Denkbar sind auch Varianten, bei denen nicht jedem Geschoss, sondern nur einem Bruchteil der Geschosse, z. B. jedem zweiten Geschoss oder auch jedem dritten Geschoss ein Luftauslass zugeordnet ist.The inlet flaps are preferred as a motor-operated flaps, z. As shutter valves, trained. These can be opened and closed by a motor, whereby intermediate positions are also possible. In particular, continuously or continuously opening flaps, z. B. shutter valves are used, but - as explained - are always operated unregulated. The fan is preferably connected via at least one common supply air shaft with the Zuluftauslässen. This supply air duct preferably extends over the entire height or at least substantially the entire height of the escape space. In any case, it is expedient if the supply air duct extends over the height of the escape space, in the doors to z. B. adjacent fire areas are provided. It is always expedient to distribute a large number of air outlets (with, for example, supply air flaps) over the height of the escape space. Thus, it may be expedient to provide at least one air outlet per floor of the escape area (eg staircase). Also conceivable are variants in which not everyone Projectile, but only a fraction of the projectiles, z. B. every second floor or every third floor is associated with an air outlet.

Nach einem weiteren Vorschlag der Erfindung mit selbstständiger Bedeutung ist der Gesamtvolumenstrom der Zuluft in Abhängigkeit von der Außentemperatur einstellbar, z. B. über den Zuluftventilator. Im Rahmen der Erfindung wird auf Temperaturschwankungen (z. B. Sommer/Winter) zum einen mit der unterschiedlichen Gewichtung der Zuluft-Volumenstromverteilung über die Höhe reagiert. Zum anderen kann jedoch auch der Gesamtvolumenstrom der Zuluft an die Außentemperatur angepasst werden. So ist es vorteilhaft, bei niedrigen Außentemperaturen einen höheren Zuluft-Volumenstrom zu wählen als bei niedrigen Außentemperaturen. Dieses lässt sich beispielsweise dadurch realisieren, dass der Ventilator durch eine Steuereinrichtung mit variabler Drehzahl betrieben wird. Dazu kann der Zuluftventilator bzw. dessen Steuereinrichtung mit einem Frequenzumrichter ausgerüstet sein. Außerdem ist besonders bevorzugt ein Außentemperatursensor vorgesehen, welcher mit dem Ventilator bzw. dessen Steuereinrichtung verbunden ist, sodass die Ventilatordrehzahl und damit der Zuluft-Volumenstrom in Abhängigkeit von der Außentemperatur variabel gestaltet werden kann. Sofern die (exakte) Temperaturdifferenz berücksichtigt wird, kann zusätzlich ein Innentemperatursensor vorgesehen sein.According to another proposal of the invention with independent significance of the total volume of supply air is adjustable depending on the outside temperature, z. B. on the supply air fan. In the context of the invention, temperature fluctuations (eg summer / winter) are reacted, on the one hand, to the different weighting of the supply air volume flow distribution over the height. On the other hand, however, the total volume flow of the supply air can be adapted to the outside temperature. So it is advantageous to select a higher supply air volume flow at low outside temperatures than at low outside temperatures. This can be realized, for example, in that the fan is operated by a variable-speed control device. For this purpose, the supply air fan or its control device may be equipped with a frequency converter. In addition, an outside temperature sensor is particularly preferably provided, which is connected to the fan or its control device, so that the fan speed and thus the supply air volume flow can be made variable depending on the outside temperature. If the (exact) temperature difference is taken into account, an internal temperature sensor may additionally be provided.

Bei der im Rahmen der Erfindung eingesetzten Regelklappenvorrichtung kann auf herkömmliche Regelklappenvorrichtungen zurückgegriffen werden. Die Regelklappen können motorisch geregelt werden. Bevorzugt sind jedoch federbelastete, selbsttätig öffnende und schließende Regelklappen vorgesehen, wie sie beispielsweise auch in der DE 10 2005 053 590 B4 oder der DE 10 2005 011 791 A1 beschrieben werden.In the control flap device used in the invention can be made of conventional flap control devices. The control valves can be controlled by motor. However, preferably spring-loaded, automatically opening and closing control valves are provided, as for example in the DE 10 2005 053 590 B4 or the DE 10 2005 011 791 A1 to be discribed.

Auch bei den Zuluftklappen kann auf Klappen, z. B. Jalousieklappen, aus dem Stand der Technik zurückgegriffen werden, wobei diese Klappen - wie erläutert - ungeregelt sind. Insgesamt lässt sich die Erfindung daher kostengünstig realisieren. Dennoch ist eine einwandfreie Funktion gewährleistet.Even with the inlet flaps can on flaps, z. As shutter valves are used in the prior art, these flaps - as explained - are unregulated. Overall, the invention can therefore be realized inexpensively. Nevertheless, a perfect function is guaranteed.

Gegenstand der Erfindung ist auch ein Verfahren zur Rauchfreihaltung eines Fluchtraumes, insbesondere unter Einsatz der beschriebenen Rauchschutzdruckanlage, wobei der Fluchtraum im Brandfall mit einem Überdruck beaufschlagt wird, der einen vorgegebenen Grenzüberdruck nicht überschreitet. Dieses Verfahren ist erfindungsgemäß dadurch gekennzeichnet, dass die Zuluft über mehrere über die Höhe des Fluchtraumes verteilte, ungeregelte Luftauslässe, z. B. mit von der Außentemperatur abhängiger variabler Zuluftverteilung zugeführt wird. Kern des erfindungsgemäßen Verfahrens ist folglich insbesondere die ungeregelte Zuströmung, und zwar vorzugsweise mit über die Höhe gewichteter, das heißt variabel/veränderbar an die Gegebenheiten anpassbarer Zuluft-Volumenstromverteilung. Ergänzend kann der Gesamtvolumenstrom der Zuluft in Abhängigkeit von der Außentemperatur eingestellt werden.The invention also provides a method for keeping smoke in an escape space, in particular using the described smoke protection printing system, wherein the escape space is exposed to an overpressure in case of fire, which does not exceed a predetermined limit pressure. This method is inventively characterized in that the supply air over several distributed over the height of the escape space, unregulated air outlets, z. B. is supplied with dependent on the outside temperature variable supply air distribution. The core of the method according to the invention is consequently, in particular, the uncontrolled inflow, preferably with an intake air volume flow distribution which is weighted over the height, that is to say variably / variably adaptable to the circumstances. In addition, the total volume flow of the supply air can be set as a function of the outside temperature.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert.In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment.

Es zeigen

Figur 1
eine Rauchschutzdruckanlage in stark vereinfachter Darstellung bei isothermen Verhältnissen,
Figur 2
die Anlage nach Figur 1 im Sommerbetrieb und
Figur 3
die Anlage nach Figur 1 im Winterbetrieb.
Show it
FIG. 1
a smoke protection system in a very simplified representation at isothermal conditions,
FIG. 2
the plant after FIG. 1 in summer operation and
FIG. 3
the plant after FIG. 1 in winter operation.

In der Figur 1 ist stark vereinfacht, schematisch ein Treppenraum als Fluchtraum 1 eines Gebäudes dargestellt. An einen solchen Treppenraum 1 grenzen in der Regel die in den einzelnen Geschossen angeordneten Nutzungseinheiten, die über Türen mit dem Treppenraum verbunden sind. Einzelheiten sind nicht dargestellt. Jedenfalls bildet der Treppenraum 1 einen Fluchtraum, der im Brandfall mit Überdruck beaufschlagt wird. Dazu ist ein Zuluftventilator 2 am Fuß des Treppenraumes vorgesehen. Um zu vermeiden, dass der Überdruck einen bestimmten Grenzüberdruck (z. B. 50 Pa) überschreitet, ist an den Fluchtraum 1 außerdem eine Regelklappenvorrichtung 3 angeschlossen, die lediglich vereinfacht dargestellt ist. Sie ist am Kopf des Treppenraumes angeordnet. Diese Regelklappenvorrichtung 3 weist zumindest eine Regelklappe auf, welche bei Überschreitung eines Grenzüberdrucks öffnet und bei Unterschreitung des Grenzüberdrucks schließt. Dieses kann über selbsttätig öffnende und schließende, federbelastete Regelklappen realisiert werden. Einzelheiten werden beispielsweise in der DE 10 2005 011 791 A1 beschrieben.In the FIG. 1 is greatly simplified, schematically represented a stairwell as the escape room 1 of a building. As a rule, the use units which are arranged in the individual storeys and which are connected to the staircase via doors are usually adjacent to such a stairwell 1. Details are not shown. In any case, the stairwell 1 forms a refuge, which is acted upon in the event of fire with overpressure. For this purpose, a Zuluftventilator 2 is provided at the foot of the stairwell. In order to avoid that the overpressure exceeds a certain limit overpressure (eg 50 Pa), a regulating flap device 3 is connected to the escape space 1, which is only shown in simplified form. It is located at the top of the stairwell. This control flap device 3 has at least one control flap, which opens when exceeding a limit overpressure and closes when it falls below the limit overpressure. This can be realized via automatically opening and closing, spring-loaded control valves. Details are given for example in the DE 10 2005 011 791 A1 described.

In Figur 1 ist erkennbar, dass der Fluchtraum 1 mit mehreren über dessen Höhe verteilten Zuluftauslässen 4 ausgestattet ist. Diese Zuluftauslässe 4 sind über einen gemeinsamen Zuluftschacht 5 mit dem Ventilator 2 verbunden. Die Höhe H des Fluchtraumes ist ebenfalls angedeutet.In FIG. 1 It can be seen that the escape space 1 is equipped with several distributed over the height Zuluftauslässen 4. These supply air outlets 4 are connected via a common supply air shaft 5 with the fan 2. The height H of the escape space is also indicated.

Die Zuluftauslässe 4 sind nun in Abhängigkeit von der Außentemperatur einzeln oder in Gruppen variabel ansteuerbar. Dazu können die Zuluftauslässe 4 beispielsweise mit nicht dargestellten Zuluftklappen ausgerüstet sein, welche motorisch betätigt und folglich motorisch geöffnet und geschlossen werden können, wobei die einzelnen Zuluftklappen unabhängig voneinander geöffnet und geschlossen werden können. Damit besteht die Möglichkeit, eine über die Fluchtraumhöhe H variable Zuluftverteilung und folglich eine über die Höhe gewichtete Zuluft-Volumenstromverteilung zu erzeugen. Dieses ergibt sich aus einer vergleichenden Betrachtung der Figuren 1 bis 3, denn die Zuluftverteilung wird in Abhängigkeit von der Außentemperatur variabel eingestellt.The supply air outlets 4 are now individually or in groups depending on the outdoor temperature variable controllable. For this purpose, the supply air outlets 4 may be equipped, for example, with supply air flaps, not shown, which are actuated by a motor and consequently can be opened and closed by a motor, whereby the individual supply flaps can be opened and closed independently of each other. This gives you the option of one over the Escape space height H variable supply air distribution and thus to generate a height-weighted supply air volume flow distribution. This results from a comparative analysis of the FIGS. 1 to 3 , because the supply air distribution is set variable depending on the outside temperature.

Figur 1 zeigt dabei den isothermen Fall, das heißt die Außentemperatur entspricht der Innentemperatur. In diesem Fall sind die thermischen Effekte innerhalb des Treppenraumes 1 vernachlässigbar, sodass die Zuluft über die Höhe H gleichmäßig verteilt in den Fluchtraum 1 eingeblasen wird. Alle Luftauslässe 4 werden mit der gleichen Einstellung betrieben, das heißt alle Zuluftklappen befinden sich in etwa in derselben Stellung. Dabei wird nochmals darauf hingewiesen, dass die Einstellung dieser Zuluftklappen ungeregelt und folglich unabhängig von den lokalen bzw. zeitabhängigen Druckschwankungen im Fluchtraum erfolgt. Die durch Öffnen und Schließen der Türen auftretenden Druckschwankungen werden ausschließlich mittels der Regelklappenvorrichtung ausgeglichen. FIG. 1 shows the isothermal case, ie the outside temperature corresponds to the inside temperature. In this case, the thermal effects within the stairwell 1 are negligible, so that the supply air over the height H is evenly distributed in the escape space 1 is blown. All air outlets 4 are operated with the same setting, that is all supply air dampers are located approximately in the same position. It is again pointed out that the setting of these supply flaps is unregulated and thus independent of the local or time-dependent pressure fluctuations in the refuge. The pressure fluctuations occurring by opening and closing the doors are compensated exclusively by means of the control valve device.

Im Sommerbetrieb, das heißt bei Außentemperaturen, die (deutlich) über den Innentemperaturen liegen, soll die Zuluft nicht mehr homogen verteilt über die gesamte Höhe H des Fluchtraumes zugeführt werden, sondern es ist zweckmäßig, in besonderem Maße im oberen Bereich des Treppenraumes Zuluft zuzuführen. Die Zuluftauslässe 4 bzw. deren Zuluftklappen werden folglich in der gewünschten Weise angesteuert. Dieses ist in Figur 2 angedeutet.In summer operation, that is at outdoor temperatures that are (significantly) above the indoor temperatures, the supply air should no longer be distributed homogeneously over the entire height H of the escape space, but it is expedient to supply supply air in particular in the upper part of the stairwell. The supply air outlets 4 or their inlet flaps are consequently activated in the desired manner. This is in FIG. 2 indicated.

In ähnlicher Weise ist es bei niedrigen Außentemperaturen gewünscht, die Zuluft im Wesentlichen im unteren Bereich des Treppenraumes zuzuführen. Dieses ist in Figur 3 angedeutet. Die Figuren 1 bis 3 zeigen folglich in einem Vergleich, dass die Zuluft-Volumenstromverteilung gezielt an die Außentemperatur bzw. die Temperaturdifferenz angepasst werden kann.Similarly, at low outdoor temperatures, it is desirable to supply the supply air substantially at the bottom of the stairwell. This is in FIG. 3 indicated. The FIGS. 1 to 3 show in a comparison that the supply air volume flow distribution can be tailored to the outside temperature or the temperature difference.

Im Übrigen besteht die Möglichkeit, auch den gesamten Zuluft-Volumenstrom an die Außentemperatur anzupassen. Es ist bevorzugt vorgesehen, bei niedrigen Außentemperaturen mit einem höheren Gesamt-Zuluft-Volumenstrom zu arbeiten als bei höheren Temperaturen. Im Winter wird folglich insgesamt mehr Zuluft zugeführt als im Sommer. Dieses ist in den Figuren 2 und 3 anhand der Länge der dargestellten Pfeile erkennbar. Konstruktiv lässt sich dieser zweite Aspekt der Erfindung beispielsweise dadurch realisieren, dass der Zuluftventilator drehzahlabhängig betrieben wird, indem z. B. eine Steuereinrichtung mit einem Frequenzumrichter vorgesehen ist, wobei diese Steuereinrichtung über einen Außentemperatursensor die Ventilator-Drehzahl und damit den Zuluft-Volumenstrom variabel gestaltet. Einzelheiten dazu sind nicht dargestellt.Incidentally, it is also possible to adapt the entire supply air volume flow to the outside temperature. It is preferably provided to operate at low outside temperatures with a higher total supply air volume flow than at higher temperatures. In winter, therefore, a total of more supply air is supplied than in summer. This is in the Figures 2 and 3 recognizable by the length of the illustrated arrows. Structurally, this second aspect of the invention can be realized for example by the fact that the supply air fan is operated speed-dependent by z. B. a control device is provided with a frequency converter, said controller via an outside temperature sensor, the fan speed and thus the supply air volume flow made variable. Details are not shown.

Claims (15)

Rauchschutzdruckanlage für ein Gebäude, welches zumindest einen im Brandfall mit Überdruck zu beaufschlagenden Fluchtraum (1), z. B. einen Treppenraum, aufweist,
mit zumindest einem den Fluchtraum (1) im Brandfall mit Zuluft beaufschlagenden Zuluftventilator (2) und einer Regelklappenvorrichtung (3), welche zumindest eine Regelklappe aufweist, welche bei Überschreitung eines Grenzüberdrucks öffnet und bei Unterschreitung des Grenzüberdrucks schließt, dadurch gekennzeichnet,
dass im Fluchtraum (1) über dessen Höhe verteilt mehrere Zuluftauslässe (4) angeordnet sind, welche als ungeregelte Zuluftauslässe (4) unabhängig von Druckschwankungen im Fluchtraum (1) ansteuerbar sind.Smoke protection pressure system for a building, which at least one in case of fire with overpressure to be acted upon escape space (1), z. B. a stairwell,
with at least one supply air ventilator (2) acting on the escape space (1) in the event of fire, and a control flap device (3) which has at least one control flap which opens when a limit overpressure is exceeded and closes when the limit overpressure is undershot, characterized
that in the escape space (1) distributed over the height of several Zuluftauslässe (4) are arranged, which as unregulated Zuluftauslässe (4) independently of pressure fluctuations in the escape space (1) can be controlled. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass die Zuluftauslässe (4) zur Erzeugung einer über die Fluchtraumhöhe (H) variablen Zuluftverteilung in Abhängigkeit von der Außentemperatur oder der Differenz zwischen Außen- und Innentemperatur einzeln oder in Gruppen variabel ansteuerbar sind.Installation according to claim 1, characterized in that the supply air outlets (4) for generating an over the escape space height (H) variable supply air distribution depending on the outside temperature or the difference between outside and inside temperature individually or in groups are variably controllable. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Zuluftauslässe (4) mit einzeln oder in Gruppen ansteuerbaren, ungeregelten Zuluftklappen ausgerüstet sind.Installation according to claim 1 or 2, characterized in that the supply air outlets (4) are equipped with individually or in groups controllable, unregulated supply air flaps. Anlage nach Anspruch 3, dadurch gekennzeichnet, dass Zuluftklappen (4) als motorisch betätigbare Klappen, z. B. Jalousieklappen, ausgebildet sind.Installation according to claim 3, characterized in that inlet flaps (4) as a motor-operated flaps, z. As shutter valves are formed. Anlage nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Ventilator (2) über zumindest einen gemeinsamen Zuluftschacht (5) mit den Zuluftauslässen (4) verbunden ist.Installation according to one of claims 1 to 4, characterized in that the fan (2) via at least one common supply air shaft (5) with the Zuluftauslässen (4) is connected. Anlage nach Anspruch 5, dadurch gekennzeichnet, dass sich der Zuluftschacht (5) über die gesamte Höhe (H) oder im Wesentlichen die gesamte Höhe (H) des Fluchtraumes (1) erstreckt.Installation according to claim 5, characterized in that the supply air shaft (5) over the entire height (H) or substantially the entire height (H) of the escape space (1) extends. Anlage nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass über die gesamte Höhe (H) des Fluchtraumes (1) eine Vielzahl von Luftauslässen (4) verteilt sind, z. B. pro Geschoss eines Treppenraumes jeweils zumindest ein Zuluftauslass (4).Installation according to one of claims 1 to 6, characterized in that over the entire height (H) of the escape space (1) a plurality of air outlets (4) are distributed, for. B. each floor of a stairwell each at least one Zuluftauslass (4). Anlage nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass mit dem Ventilator (2) der Gesamt-Volumenstrom der Zuluft in Abhängigkeit von der Außentemperatur oder der Differenz zwischen Außen- und Innentemperatur einstellbar ist.Installation according to one of claims 1 to 7, characterized in that with the fan (2) the total volume flow of the supply air in dependence on the outside temperature or the difference between outside and inside temperature is adjustable. Anlage nach Anspruch 8, dadurch gekennzeichnet, dass der Ventilator (2) durch eine Steuereinrichtung, welche z. B. mit einem Frequenzumrichter ausgerüstet ist, mit variabler Drehzahl betrieben wird.Installation according to claim 8, characterized in that the fan (2) by a control device which z. B. is equipped with a frequency converter, is operated at variable speed. Anlage nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass der Ventilator (2) bzw. dessen Steuereinrichtung mit einem Außentemperatursensor und gegebenenfalls einem Innentemperatursensor verbunden ist.Installation according to claim 8 or 9, characterized in that the fan (2) or its control device is connected to an outside temperature sensor and optionally an internal temperature sensor. Anlage nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Regelklappen der Regelklappenvorrichtung (3) als federbelastete Regelklappen ausgebildet sind, welche bei Druckschwankungen selbsttätig öffnen und schließen.Installation according to one of claims 1 to 10, characterized in that the control valves of the control flap device (3) as spring-loaded Regulating flaps are formed, which open and close automatically in pressure fluctuations. Verfahren zur Rauchfreihaltung eines Fluchtraumes, insbesondere mit einer Rauchschutzdruckanlage nach einem der Ansprüche 1 bis 11, wobei der Fluchtraum im Brandfall mit einer Rauchschutzdruckanlage mit einem Überdruck beaufschlagt wird, der einen vorgegebenen Grenzüberdruck nicht überschreitet, dadurch gekennzeichnet,
dass die Zuluft über mehrere über die Höhe des Fluchtraumes verteilte ungeregelte Zuluftauslässe zugeführt wird.A method for keeping the smoke of a refuge space, in particular with a smoke protection printing system according to one of claims 1 to 11, wherein the escape space is exposed in case of fire with a smoke protection pressure system with an overpressure that does not exceed a predetermined limit pressure, characterized
that the supply air distributed over more than the height of the escape space unregulated supply air is supplied. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass die Zuluft in Abhängigkeit von der Außentemperatur oder der Differenz zwischen Außen- und Innentemperatur über die Höhe des Fluchtraumes variabel zugeführt wird.A method according to claim 12, characterized in that the supply air is supplied variably in dependence on the outside temperature or the difference between outside and inside temperature over the height of the escape space. Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass die Zuluft bei einer Differenz zwischen Außentemperatur und Innentemperatur mit einer über die Höhe des Treppenraumes inhomogenen Verteilung zugeführt wird.A method according to claim 13, characterized in that the supply air is supplied at a difference between the outside temperature and the inside temperature with a distribution inhomogeneous over the height of the stairwell. Verfahren nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass der Gesamt-Volumenstrom der Zuluft in Abhängigkeit von der Außentemperatur oder der Differenz zwischen Außen- und Innentemperatur eingestellt wird.Method according to one of claims 12 to 14, characterized in that the total volume flow of the supply air is adjusted depending on the outside temperature or the difference between outside and inside temperature.
EP12157874.4A 2011-03-14 2012-03-02 Anti-smoke pressure assembly and method for keeping an escape route free of smoke Active EP2505735B1 (en)

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DE102011001261A DE102011001261A1 (en) 2011-03-14 2011-03-14 Smoke protection pressure system and method for keeping smoke in a refuge space

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3078918A1 (en) * 2015-04-08 2016-10-12 Gesellschaft für sicherheits- und brandschutz- Hybrid smoke protection differential pressure installation

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DE1961837A1 (en) * 1969-12-10 1971-06-16 Klaus Daniels skyscraper
US5788571A (en) * 1997-01-22 1998-08-04 Ivison; John T. Method of venting smoke from highrise residential buildings
DE19841540A1 (en) * 1998-09-11 2000-03-16 Wolfram Klingsch Pressure ventilation system for secured escape and rescue zones in a multi-story building has fire locks between the secured and occupied zones with fans giving an air flow in one direction from the escape zone to the fire locks
EP0995955A2 (en) * 1998-10-22 2000-04-26 Günter Schulte Smoke protection device for staircases or similar
DE20113242U1 (en) 2001-08-09 2001-10-31 Ostertag, Dieter, Dr.-Ing., 82396 Pähl Security stairwell for a high-rise building
DE102005011791A1 (en) 2005-03-11 2006-09-21 Eidmann, Jürgen Dampers device
DE102005053590B4 (en) 2005-11-10 2008-11-13 Eidmann, Fritz Jürgen Smoke protection system and method for removing smoke from fire areas of a building and the smoke-free escape of escape routes of the building

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1961837A1 (en) * 1969-12-10 1971-06-16 Klaus Daniels skyscraper
US5788571A (en) * 1997-01-22 1998-08-04 Ivison; John T. Method of venting smoke from highrise residential buildings
DE19841540A1 (en) * 1998-09-11 2000-03-16 Wolfram Klingsch Pressure ventilation system for secured escape and rescue zones in a multi-story building has fire locks between the secured and occupied zones with fans giving an air flow in one direction from the escape zone to the fire locks
EP0995955A2 (en) * 1998-10-22 2000-04-26 Günter Schulte Smoke protection device for staircases or similar
DE20113242U1 (en) 2001-08-09 2001-10-31 Ostertag, Dieter, Dr.-Ing., 82396 Pähl Security stairwell for a high-rise building
DE102005011791A1 (en) 2005-03-11 2006-09-21 Eidmann, Jürgen Dampers device
DE102005053590B4 (en) 2005-11-10 2008-11-13 Eidmann, Fritz Jürgen Smoke protection system and method for removing smoke from fire areas of a building and the smoke-free escape of escape routes of the building

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3078918A1 (en) * 2015-04-08 2016-10-12 Gesellschaft für sicherheits- und brandschutz- Hybrid smoke protection differential pressure installation

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EP2505735B1 (en) 2015-12-09
PL2505735T3 (en) 2016-06-30

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