WO1997030755A1 - Dispositif d'epuration d'air - Google Patents

Dispositif d'epuration d'air Download PDF

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Publication number
WO1997030755A1
WO1997030755A1 PCT/CH1997/000043 CH9700043W WO9730755A1 WO 1997030755 A1 WO1997030755 A1 WO 1997030755A1 CH 9700043 W CH9700043 W CH 9700043W WO 9730755 A1 WO9730755 A1 WO 9730755A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
filter
cleaning device
filter unit
air cleaning
Prior art date
Application number
PCT/CH1997/000043
Other languages
German (de)
English (en)
Inventor
Hans Riedo
Original Assignee
Andair Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Andair Ag filed Critical Andair Ag
Priority to AU15395/97A priority Critical patent/AU1539597A/en
Publication of WO1997030755A1 publication Critical patent/WO1997030755A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B13/00—Special devices for ventilating gasproof shelters

Definitions

  • the invention relates to an air cleaning device with means for sucking in, cleaning and distributing outside air in at least one closed room, in particular in safety and / or protective rooms.
  • the invention further relates to a method for operating the air purification device.
  • a generic device is known for example from DE, AI 4215773.
  • the device provided there consists of an essentially cylindrical element, which can hold a filter or a filter unit, and two end caps of the cylindrical element, which each contain an adapter for connecting the device on the air inlet and air outlet side.
  • a cyclone filter for separating coarse dust is permanently installed in the cover on the air inlet side.
  • a filter unit that can be used in the device described above is known from DE, AI 3841895.
  • the filter unit is preferably cylindrical and consists of nested individual filters, which as a whole ensure protection against atomic, biological and chemical (ABC) active substances.
  • a fan flanged on from the outside is used to put the device into operation.
  • C1 3521536 presents a room filter unit in which the filter and a pipe section are connected in a "piggyback" arrangement so that during test runs of the ventilation system, the pipe section serves as a bypass for the filter for which
  • the filter is always kept near its place of use.
  • a disadvantage of this arrangement is that, if necessary, both the filter and the bypass have to be moved during the conversion, and that the connection points for the air inlet and outlet have to be opened and closed again, which often leads to leaks.
  • the object of the invention is to provide an air purification device of the type mentioned at the outset and a method for its operation without having to coordinate a large number of individual components with one another before commissioning, and at the same time that caused by a large number of adapter pieces and seals To greatly reduce the risk of leaks in the device.
  • the unprotected penetration of outside air should not be possible even in the case of leaky rooms and / or wind.
  • the filter unit should be stored in the vicinity of its place of use, protected against aging and mechanical damage, so that it can be used immediately, even after years of storage, without any modifications to the device.
  • an air cleaning device designed as an autonomous installation unit with an airtight one Housing, an air inlet connector for the air to be cleaned and an outlet connector, a fan, at least one unused and airtightly packed filter unit and an integrated bypass for the filter unit / s.
  • a filter unit preferably consists of a coarse dust filter, a particulate filter and one or, if necessary, several activated carbon filters, which are arranged one after the other in this order and through which the air to be cleaned flows.
  • the activated carbon filter can be filled with impregnated activated carbon, which specifically protects against warfare agents, or with activated carbon, which adsorbs the radionuclide mixtures contained in the air in the event of a nuclear accident. In their entirety, they ensure protection against ABC active ingredients or against nuclear power plant accidents.
  • the filter unit is stored in the housing of the air cleaning device with the activated carbon filter and is thus protected against mechanical damage and exposure to light through the housing wall.
  • An airtight packaging of the filter unit preferably by welding in a multi-stage film, ensures that the filter unit is still fully functional even after years of storage.
  • An activated carbon filter in particular would age prematurely without such packaging simply by storing it.
  • the advantage of this type of packaging is the saving of additional mechanical protection, which is already provided by the wall of the air purification device, and, if necessary, the simple unpacking from the film, without causing problems Screw or plug connections must be moved together with sealing material.
  • the packaged filter unit is expediently stored in the air cleaning device in such a way that, during test runs, the incoming air first flows through a cavity in the air cleaning device, the functional bypass, then hits the packaged filter unit and flows around it and finally enters the fan.
  • the unpacked filter unit is placed in the cavity mentioned directly under the intake manifold and pressed against a seal so that the incoming air must flow through the filter unit. This concept avoids complex measures to replace the filter and bypass.
  • the gas-tight housing of the air cleaning device is preferably formed in two parts.
  • the packaged filter unit and the cavity are easily accessible by opening quick-release fasteners. If necessary, this enables the filter unit to be used quickly.
  • the cavity mentioned in the air cleaning device is so large that a further filter unit can be used there, in addition to the filter unit stored in the air cleaning device.
  • This filter is preferably a dust and / or suspended matter filter, for example a pollen filter.
  • the air purification device is able to blow dust-free or suspended matter-free, and thus also flower pollen-free, fresh air into the room in normal operation, in that allergic persons can stay free of symptoms.
  • the air cleaning device is not adversely affected. Due to the two-part closure of the housing with quick-release fasteners Both filter units are easily accessible and can be exchanged for each other at any time.
  • the additional filter unit can of course also be completely removed if necessary and a necessary filter unit can be inserted in the cavities.
  • a silencer is preferably installed directly after the motor and / or hand-operated fan, still integrated in the air cleaning device, which reduces the fan noise of the air cleaning device.
  • glass or mineral wool but also sound-insulating foam is used as the insulating material.
  • a silencer significantly increases the comfort when staying in a room which is ventilated by the air cleaning device. This aspect is of particular importance when operating the air cleaning device with a dust and / or suspended matter filter.
  • the ventilation of several, even different, rooms is possible with the same air purification device.
  • the air purification device can only be connected to existing air conditioning components via intake and outlet connections and that adapter pieces and seals between individual, integrated components in the air purification device can be dispensed with.
  • a very versatile use of the air purification device is possible in this way.
  • all of the integrated components and the entire installation unit have an essentially axially symmetrical geometry.
  • the object is achieved according to the invention in that the cleaned air is continuously fed into the safety and / or Blown protective rooms, where it escapes through the creation of a remaining, low excess pressure due to leaks in the safety rooms and / or a pressure relief valve in the protective spaces.
  • FIG. 1 shows a longitudinal section through an essentially cylindrical air cleaning device with a tightly closed filter unit
  • FIG. 2 shows a variant according to FIG. 1 with an additional, tightly closed filter unit
  • FIG. 3 shows a section A-A according to FIG.
  • An air cleaning device 10 shown in FIG. 1 is of essentially cylindrical design and comprises a two-part housing 12.
  • An essentially cup-shaped cover 14 can be fastened below the housing via a quick-release fastener 16.
  • the air flowing through the air cleaning device 10 is indicated by arrows U.
  • the air cleaning devices are equipped in the area of the air inlet connector 18, also called an intake connector, with a sealing cap 20 and quick-release coupling 21.
  • the sealing cap 20 can be sealed. Even with air leakage a corresponding system can be arranged. Of course, the sealing cap 20 must be removed before commissioning, otherwise the air cannot flow through, as shown in FIG. 1.
  • a seal 24 is inserted in a cylindrical circumferential step 22, in the present case an O-ring.
  • a two-part filter unit 26 is arranged coaxially with respect to the longitudinal axis L of the housing 12.
  • This filter unit 26 essentially comprises an inside, cup-shaped coarse dust filter 28 and an outside, cylinder jacket-shaped particulate filter 30, e.g. a dust and / or pollen filter.
  • the filter parts 28, 30 are held by an upper and a lower end plate 32, 34.
  • the lower end plate 34 is supported on a plate 36 or at least three radial struts, which are suspended on the cover 14 of the housing 12 via clamping devices 38 and angles 40.
  • the upper face plate 32 is pressed onto the seal 24 in the area of the coarse dust filter 28.
  • a second filter unit 42 is arranged in the middle part of the housing 12 and is constructed in three parts.
  • a peripheral activated carbon filter 44 which is also coaxial with the longitudinal axis L and which is also held by the upper and lower end plates 32, 34.
  • the entire second filter unit, in FIG. 1 only in the area of the inlet opening of the coarse dust filter 28, is packed airtight with a film 48.
  • this film 48 is shrunk on and therefore follows the outer contours of the three-part filter unit 42.
  • a fan unit 50 is shown, which is attached to the housing 12 via a support plate 52.
  • the filter chamber of the housing is closed at the bottom with a disk-shaped guide plate 54, which has an inflow nozzle 56 running in the axial direction with a subsequent fan impeller 58. This is driven by an electric motor 60.
  • a sound absorber 62 indicated on the left-hand side with an peripheral air duct 64 is explained in more detail in FIG. 3.
  • a variant of an air cleaning device 10 according to FIG. 2 corresponds to the embodiment shown in FIG. 1 with the following changes:
  • first filter unit 26 There is no two-part first filter unit 26. In its place is an airtightly packed second Filter unit 42 with an activated carbon filter 44 against chemical warfare agents is used.
  • a further second filter unit 42 'arranged downstream in the direction of flow U has an activated carbon filter 44' against a possible nuclear accident.
  • the coarse dust filter 28 and the suspended matter filter 30 are of the same design in both second filter units 42 and 42 '.
  • the fan impeller 58 can be operated electrically or alternatively with a hand crank 68, with the interposition of a gear 70.
  • the air cleaning device 10 thus remains functional even in the event of a power failure, and the necessary room pressure can be generated manually. This can prevent pollutants from entering the living room regardless of a power supply.
  • a cover 14 as shown in FIG. 1 can be used with a two-part first filter unit 26 with a coarse dust filter 28 and suspended matter filter 30 through which air flows.
  • one and / or other second filter units 42, 42 ' can be freed from the protective film 48 and used actively.
  • the upper face plate 32 must be pressed against the seal 22.
  • An essential advantage of the present invention is clearly evident from FIGS. 1 and 2.
  • the second filter unit 42, 42 'used in an emergency only has to be freed from the protective film 48, then it is ready for use and can be used with certainty. Storage outside the air cleaning device is not required.
  • the filter units are immediately accessible and fully functional at all times.
  • FIG. 3 shows a radial section at the level of the fan impeller 58.
  • the ejected air flow U is guided via the peripheral air duct 64 to a lateral outlet connection 72 for the cleaned air.
  • This channel 64 is delimited on the outside by the housing wall 12, on the inside by the essentially tongue-shaped silencer 62.
  • An air quantity regulating flap 74 is installed at the entrance of the air duct 64.
  • An air quantity measuring device 76 is arranged in the direction of the air flow U after the air quantity regulating flap 74. In this area the air flow U flows in a practically laminar manner and can be adjusted manually or by process control by actuating the flap 74.
  • the arrangement according to FIG. 3 also has the advantage that the noise generated in the air quantity regulating flap 74 and the air quantity measuring device 76 is reduced in the subsequent silencer 62.
  • the muffler tongue 62 is delimited against the air duct 64 by a perforated plate or net 78 which holds the muffler 62 in place.
  • the silencer tongue 62 can also be made of absorption material made of fiber-free foam.
  • connection to existing air conditioning assemblies takes place via the lateral outlet connection 72; if appropriate, this outlet connection forms the opening via which a room is ventilated.
  • the air cleaning device 10 according to the invention (Fig. 1, 2) has a permanently installed air inlet connection 18 (Fig. 1, 2) for the outside air and a side outlet connection 72 for the cleaned air.
  • a permanently installed air inlet connection 18 for the outside air
  • a side outlet connection 72 for the cleaned air.
  • no adapter pieces or seals are provided, which represents an inestimable advantage for the air purification device according to the invention.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un dispositif d'épuration d'air (10) comprenant des moyens pour aspirer, épurer et répartir l'air extérieur dans au moins un espace fermé, notamment dans des zones de confinement et/ou des abris. Ce dispositif est conçu en tant qu'unité autonome comportant un boîtier (12) étanche à l'air, une tubulure d'entrée d'air (18) pour l'air à épurer, et une tubulure d'évacuation d'air (72). Ce boîtier entoure un ventilateur (58), au moins une unité filtrante (42) non utilisée et emballée de façon étanche à l'air, ainsi qu'une conduite de dérivation intégrée (46) pour l'(les) unité(s) filtrante(s) (42). L'air épuré est soufflé en permanence dans les zones de confinement et/ou les abris, d'où, en produisant une légère surpression résiduelle, il s'échappe par des fentes dans les zones de confinement et /ou par une soupape de surpression dans les abris.
PCT/CH1997/000043 1996-02-22 1997-02-12 Dispositif d'epuration d'air WO1997030755A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15395/97A AU1539597A (en) 1996-02-22 1997-02-12 Air cleaner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00462/96A CH691432A5 (de) 1996-02-22 1996-02-22 Luftreinigungsgerät.
CH462/96 1996-02-22

Publications (1)

Publication Number Publication Date
WO1997030755A1 true WO1997030755A1 (fr) 1997-08-28

Family

ID=4187573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1997/000043 WO1997030755A1 (fr) 1996-02-22 1997-02-12 Dispositif d'epuration d'air

Country Status (3)

Country Link
AU (1) AU1539597A (fr)
CH (1) CH691432A5 (fr)
WO (1) WO1997030755A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004103475A1 (fr) 2003-05-22 2004-12-02 Andair Ag Installation de ventilation pour la protection nbc
CZ307226B6 (cs) * 2014-12-10 2018-04-11 Clean-Air S.R.O. Filtroventilační jednotka pro improvizovaný úkryt
WO2018138716A1 (fr) * 2017-01-25 2018-08-02 Beth-El Zikhron Yaaqov Industries Ltd. Unité de filtre nbc avec dérivation de ventilation
CN113844239A (zh) * 2021-10-30 2021-12-28 华能伊敏煤电有限责任公司 矿用重型汽车驾驶室用空气净化装置及净化方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021200212A1 (de) 2021-01-12 2022-07-14 KRIEG Industriegeräte GmbH & Co. KG Raumluftreinigungsvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8503332U1 (de) * 1985-02-07 1986-04-10 Anton Piller GmbH & Co KG, 3360 Osterode Schutzlüfter
DE3521536C1 (en) * 1985-06-15 1987-02-26 Draegerwerk Ag Room filter unit for shelters
DE3841895A1 (de) * 1988-12-13 1990-06-21 Wolfgang Gerigk Vorrichtung zur filterung atomarer, biologischer und chemischer verunreinigungen in der atemluft
DE4215773A1 (de) * 1992-05-13 1993-11-18 Wolfgang Gerigk Vorrichtung zur Entstaubung und Adsorbtion verstrahlter, vergifteter und verseuchter Atemluft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8503332U1 (de) * 1985-02-07 1986-04-10 Anton Piller GmbH & Co KG, 3360 Osterode Schutzlüfter
DE3521536C1 (en) * 1985-06-15 1987-02-26 Draegerwerk Ag Room filter unit for shelters
DE3841895A1 (de) * 1988-12-13 1990-06-21 Wolfgang Gerigk Vorrichtung zur filterung atomarer, biologischer und chemischer verunreinigungen in der atemluft
DE4215773A1 (de) * 1992-05-13 1993-11-18 Wolfgang Gerigk Vorrichtung zur Entstaubung und Adsorbtion verstrahlter, vergifteter und verseuchter Atemluft

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004103475A1 (fr) 2003-05-22 2004-12-02 Andair Ag Installation de ventilation pour la protection nbc
US7527663B2 (en) 2003-05-22 2009-05-05 Andair Ag Ventilation system providing NBC protection
CZ307226B6 (cs) * 2014-12-10 2018-04-11 Clean-Air S.R.O. Filtroventilační jednotka pro improvizovaný úkryt
WO2018138716A1 (fr) * 2017-01-25 2018-08-02 Beth-El Zikhron Yaaqov Industries Ltd. Unité de filtre nbc avec dérivation de ventilation
CN113844239A (zh) * 2021-10-30 2021-12-28 华能伊敏煤电有限责任公司 矿用重型汽车驾驶室用空气净化装置及净化方法
CN113844239B (zh) * 2021-10-30 2023-07-07 华能伊敏煤电有限责任公司 矿用重型汽车驾驶室用空气净化装置及净化方法

Also Published As

Publication number Publication date
AU1539597A (en) 1997-09-10
CH691432A5 (de) 2001-07-31

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