WO1995019216A2 - Luftfiltereinheit mit einer thermisch wirkenden einrichtung zur entkeimung ihrer filterzelle(n) und ihrer inneren oberflächen - Google Patents
Luftfiltereinheit mit einer thermisch wirkenden einrichtung zur entkeimung ihrer filterzelle(n) und ihrer inneren oberflächen Download PDFInfo
- Publication number
- WO1995019216A2 WO1995019216A2 PCT/EP1995/000157 EP9500157W WO9519216A2 WO 1995019216 A2 WO1995019216 A2 WO 1995019216A2 EP 9500157 W EP9500157 W EP 9500157W WO 9519216 A2 WO9519216 A2 WO 9519216A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- filter
- filter unit
- unit
- cell
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0095—Means acting upon failure of the filtering system, e.g. in case of damage of the filter elements; Failsafes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/448—Auxiliary equipment or operation thereof controlling filtration by temperature measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
- B01D2273/20—High temperature filtration
Definitions
- G 93 08 937.6 describes a particulate filter cell that can be thermally sterilized by an electrical heating device installed in the filter cell.
- This filter cell is not commercially available. It is complex due to the necessary heating installations. A filter change - as it can be relatively easy for hygiene and precautionary reasons - becomes correspondingly expensive. The prospect of high operating costs will make their installation more difficult in borderline cases.
- the object of the invention is to design the technology and the method so that an air filter unit according to the invention uses
- the temperature profile can be controlled as required: i.e. stepped temperatures; Holding times, shock temperature, etc.
- the filter cells are disposed of in the normal way
- the thermally sterilized filter unit can be cooled down again by means of ventilation with cold air.
- Filter cell (s) (3), (3.1) and the inner walls of the housing (1) is effected by means of a hot air stream, which is optionally in the
- Normal filter operation can be resumed after the unit has cooled down.
- a filter unit (20) with housing (1) and in it the working filter cell (s) (3), and - if necessary - the safety filter cell (s) (3.1), is an exhaust air filter for dangerous air or germs is a supply air filter for sterile rooms. Germs must be caught on the filter cell (3). Their multiplication and propagation must be prevented. The formation of fungi and the emission of spores on the clean air side must also be prevented, so that there can be no danger from the filter unit (20).
- the filter chamber (1) is separated from the supply air duct (5) and the clean air duct (6) by means of the butterfly valves (7) and (8).
- hot air / gas is blown into the supply air chamber (1.1) via the heating unit (14) and the connection (9), from there via the working filter cell (s) (3) and heats it up into the clean air chamber (1.2) where it heats the safety filter cell (s) (3.1) (if installed). From there, the hot air / hot gas passes back to the hot gas blower (14.1) via the hot gas return connection (10) and the switchover flap (14.2) set to air recirculation mode
- the present example lies outside the filter housing (1) and, in the case of an internal construction, can be in the supply air chamber (1.1) or in the clean air chamber (1.2).
- the hot air discharge connection (11) If the hot air / hot gas cannot be removed via the clean air duct (6) - and this should be the rule - the hot air discharge connection (11), a hot gas discharge flap (17) and a discharge pipe (12) must also be installed , and the air must be blown off through this special outlet (because of the danger when the system is warmed up).
- the temperature is measured using the temperature indicators / switches (TIS) (15) and (16).
- the control system (13) ensures the regular course of a periodic disinfection.
- the condition of the working filter cell (s) (3) can be checked during sterilization in connection with a defined circulation or fresh air quantity. Whether the filter cell (s) is (are) suitable for further use, i.e. The difference in pressure measured with a defined volume flow can be used to automatically determine whether it is (are) still capable of receiving additional filter material.
- the final state of the filter cell (s) is signaled when a set switching point is reached on the differential pressure sensor (18). After the thermal treatment, the filter cells (3) and (3.1), the inner surfaces of the housing (1) and all other inner surfaces can be considered as germ-free. Access to the interior of the filter unit (20), the removal of filter cells and the replacement of other components are carried out safely.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
- Central Air Conditioning (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU22139/95A AU2213995A (en) | 1994-01-17 | 1995-01-16 | Air filtration unit with a thermal device for disinfecting its filter cell(s) and its interior surfaces |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG9400480.3U | 1994-01-17 | ||
DE9400480U DE9400480U1 (de) | 1994-01-17 | 1994-01-17 | Luftfiltereinheit (20), geeignet für gesundheitsgefährdende Keime tragende Abluft/Abgase mit einer vorzugsweise thermisch wirkenden Einrichtung zur Insitu-Entkeimung ihrer Filterzelle(n) (3), 3.1) und innerer Oberflächen der Filtereinheit (20) |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1995019216A2 true WO1995019216A2 (de) | 1995-07-20 |
WO1995019216A3 WO1995019216A3 (de) | 1995-09-14 |
Family
ID=6903139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1995/000157 WO1995019216A2 (de) | 1994-01-17 | 1995-01-16 | Luftfiltereinheit mit einer thermisch wirkenden einrichtung zur entkeimung ihrer filterzelle(n) und ihrer inneren oberflächen |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2213995A (de) |
DE (1) | DE9400480U1 (de) |
WO (1) | WO1995019216A2 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0821972A3 (de) * | 1996-07-29 | 1999-08-25 | Ezio Bartocci | Vorrichtung und Verfahren zum Sterilisieren von Druckluft für medizinische Zwecke |
GB2428601A (en) * | 2005-08-03 | 2007-02-07 | Malcolm Robert Snowball | Fluid filtration apparatus |
AU2012202757B2 (en) * | 2011-05-10 | 2015-03-26 | Steris Europe, Inc. Suomen Sivuliike | Device for sterilization of a fluid phase |
DE102020206087A1 (de) | 2020-05-14 | 2021-11-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Selbst-desinfizierender Gegenstand |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4435739C2 (de) * | 1994-10-06 | 2000-08-17 | Inst Luft Kaeltetech Gem Gmbh | Einrichtung zur periodischen Abreinigung von Luftfiltern |
DE102006036476A1 (de) | 2006-08-04 | 2008-02-07 | Khs Ag | Filtereinsatz |
EP2075048A1 (de) | 2007-12-18 | 2009-07-01 | Dall'Oglio, Stefano | Verfahren und biologisches Filtersystem mit Filterregenerierung |
DE102008023739A1 (de) | 2008-05-15 | 2009-11-26 | Festo Ag & Co. Kg | Verfahren und Vorrichtung zur Erfassung von Aerosolen und/oder strömenden Flüssigkeiten |
CN105056647B (zh) * | 2015-07-29 | 2017-08-25 | 成都易态科技有限公司 | 高温烟气过滤装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2229424A2 (de) * | 1973-05-17 | 1974-12-13 | Draegerwerk Ag | |
DE3522890A1 (de) * | 1984-06-27 | 1986-01-02 | House Food Industrial Co., Ltd., Higashiosaka, Osaka | Vorrichtung und verfahren zum erzeugen steriler luft |
US4707167A (en) * | 1985-09-10 | 1987-11-17 | Aoki Corporation | Air sterilization filter |
DE3808075A1 (de) * | 1988-03-11 | 1989-09-21 | Rohs Ulrich | Mechanische russfiltervorrichtung |
US5277828A (en) * | 1992-04-21 | 1994-01-11 | Fleming Mark A | Steam regenerable filter and method |
-
1994
- 1994-01-17 DE DE9400480U patent/DE9400480U1/de not_active Expired - Lifetime
-
1995
- 1995-01-16 AU AU22139/95A patent/AU2213995A/en not_active Withdrawn
- 1995-01-16 WO PCT/EP1995/000157 patent/WO1995019216A2/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2229424A2 (de) * | 1973-05-17 | 1974-12-13 | Draegerwerk Ag | |
DE3522890A1 (de) * | 1984-06-27 | 1986-01-02 | House Food Industrial Co., Ltd., Higashiosaka, Osaka | Vorrichtung und verfahren zum erzeugen steriler luft |
US4707167A (en) * | 1985-09-10 | 1987-11-17 | Aoki Corporation | Air sterilization filter |
DE3808075A1 (de) * | 1988-03-11 | 1989-09-21 | Rohs Ulrich | Mechanische russfiltervorrichtung |
US5277828A (en) * | 1992-04-21 | 1994-01-11 | Fleming Mark A | Steam regenerable filter and method |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0821972A3 (de) * | 1996-07-29 | 1999-08-25 | Ezio Bartocci | Vorrichtung und Verfahren zum Sterilisieren von Druckluft für medizinische Zwecke |
GB2428601A (en) * | 2005-08-03 | 2007-02-07 | Malcolm Robert Snowball | Fluid filtration apparatus |
AU2012202757B2 (en) * | 2011-05-10 | 2015-03-26 | Steris Europe, Inc. Suomen Sivuliike | Device for sterilization of a fluid phase |
AU2012202757A8 (en) * | 2011-05-10 | 2015-04-09 | Steris Europe, Inc. Suomen Sivuliike | Device for sterilization of a fluid phase |
AU2012202757B8 (en) * | 2011-05-10 | 2015-04-09 | Steris Europe, Inc. Suomen Sivuliike | Device for sterilization of a fluid phase |
US10449264B2 (en) | 2011-05-10 | 2019-10-22 | Steris Europe, Inc. Suomen Sivuliike | Device for sterilization of a fluid phase |
DE102020206087A1 (de) | 2020-05-14 | 2021-11-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Selbst-desinfizierender Gegenstand |
EP3932434A2 (de) | 2020-05-14 | 2022-01-05 | FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. | Selbst-desinfizierender gegenstand |
Also Published As
Publication number | Publication date |
---|---|
AU2213995A (en) | 1995-08-01 |
WO1995019216A3 (de) | 1995-09-14 |
DE9400480U1 (de) | 1994-05-19 |
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