EP1382914A2 - Appareil et méthode d'extraction de l'air - Google Patents

Appareil et méthode d'extraction de l'air Download PDF

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Publication number
EP1382914A2
EP1382914A2 EP03006665A EP03006665A EP1382914A2 EP 1382914 A2 EP1382914 A2 EP 1382914A2 EP 03006665 A EP03006665 A EP 03006665A EP 03006665 A EP03006665 A EP 03006665A EP 1382914 A2 EP1382914 A2 EP 1382914A2
Authority
EP
European Patent Office
Prior art keywords
sensor
air pressure
air
air extraction
evaluation device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03006665A
Other languages
German (de)
English (en)
Other versions
EP1382914A3 (fr
Inventor
Heinz Gatzmanga
Hartmut Backe
Ernst U. Menken
Manuel Fernandez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Albatros Applied Technologies GmbH
Original Assignee
Albatros Applied Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Albatros Applied Technologies GmbH filed Critical Albatros Applied Technologies GmbH
Publication of EP1382914A2 publication Critical patent/EP1382914A2/fr
Publication of EP1382914A3 publication Critical patent/EP1382914A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems
    • 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
    • F24F11/0001—Control or safety arrangements for ventilation

Definitions

  • the invention relates to an air extraction device, in particular for an extractor hood, with a sensor device and an associated evaluation device, and a Air extraction device method.
  • Extractor hoods which are attached over hotplates, are used in most applications controlled by hand. However, extractor hoods are also from the prior art known, which are controlled or regulated by different criteria.
  • Such air extraction devices are known from DE 25 18 750 B2.
  • the one revealed in it Cooker hood includes two temperature sensors, which depend on temperature differences control a fan.
  • an extractor hood is known from utility model DE 76 33 882, the one Moisture sensing device, consisting of a sensor probe and a switching device for Has switched on, off and switching over the electrically operated fan of the extractor hood.
  • the object of the invention is to improve an air extraction device and critical conditions to avoid in operating rooms.
  • the task of the air extraction device described at the outset is achieved in that the Sensor device is an air pressure measuring device and the evaluation device differential pressures determined from measurement signals of the air pressure measuring device and in dependence thereon Differential pressures generated output signals.
  • Advantages of this invention are that critical negative pressure conditions in operating rooms, such as in a kitchen, and can be remedied in good time can be found. So there are the critical conditions such as difficult opening of the Doors and windows in the operating room or an above-average suction power on others Housing units avoided.
  • the air pressure measuring device preferably has a single sensor for the delivery of at least two time-spaced air pressure measurements.
  • a filter to eliminate Environmental influences follow the sensor. This has the advantage that the invention can be realized with few components and is simple to set up. It works despite environmental influences.
  • the filter is advantageously a bandpass filter, the lower limit of which is due to environmental influences and its upper limit to high-frequency interference, such as electromagnetic Radiation. This has the advantage that a very sensitive system is implemented.
  • the air pressure measuring device has a Sensor for air pressure measurement in the operating room and a reference sensor for air pressure measurement in a reference room.
  • the reference room does not have to be a closed side room but can also be the environment outside the building. Advantages of this embodiment lie in the fact that the reference measured value does not have to be stored, that the current ambient conditions contained in the reference air pressure value to be compared are. In contrast, when a reference pressure value is saved, only a specific one is saved Environmental status saved.
  • the evaluation device is preferably connected to a signal transmitter. This has the advantage that a current or critical condition can be communicated in good time.
  • the signal generator can emit an acoustic signal or optical signal, for example, or have a display. An operator can then control the air extraction device accordingly, for example by reducing the air throughput of the hood or the operating room additionally is ventilated.
  • the air extraction device can also have a regulation, with which the air extraction is controlled directly, in which the evaluation device is a component this scheme is. This has the advantage that critical conditions are automatically avoided and do not depend on the commitment of an operator.
  • This problem can also be solved with an air extraction process. It has the following procedural steps on: a differential pressure with the sensor device is measured and output signals with the evaluation device depending on the measured differential pressures output.
  • the differential pressure is derived from sensor measurements that are spaced apart in time determined. This has the advantage that only a single sensor is required for air pressure measurement is.
  • the differential pressure is recorded from different locations Sensor measured values determined. This allows the current Environmental conditions are eliminated.
  • FIG. 1 shows an air extraction device 1 in an operating room 5.
  • a sensor 2 for air pressure measurement On the air extraction device 1 there is a sensor 2 for air pressure measurement.
  • Sensor 2 is a bandpass filter 4 downstream.
  • the bandpass filter is connected to an evaluation device 3.
  • the Evaluation device 3 contains a memory 11.
  • a temperature sensor 10 is also with the evaluation device 3 connected.
  • the temperature sensor 10 is expediently on the sensor 2 arranged.
  • the evaluation device controls a signal generator 7 and an air vent 8 1 has a display and two signal lamps.
  • a manual control device 9 is connected to the evaluation device in order to control the air vent 8.
  • the sensor 2 works in conjunction with the evaluation device and the bandpass filter a barometer with an absolute pressure measurement.
  • the Discharge 8 the current air pressure measured.
  • the environmental influences are above the bandpass filter in the range from 0 to 10 Hz as the lower threshold and high-frequency interference, in the range from 40 to 200 Hz eliminated as the upper threshold.
  • These measured values are in the evaluation device 3 held in a memory 11. There will be a histogram with at least 10 to 100,000 measured values created, the course of which is evaluated. The measurement takes place in the 0.01 mbar range. Differences in pressure between 4 and 5 Pa are recognized.
  • a temperature sensor 10 measures the temperature and gives these values to the evaluation device, which has a temperature compensation of 0.00002 ppm / ° C.
  • the evaluation device 3 When a certain pressure difference limit is exceeded or fallen below, which either entered in the factory or manually, for example via the manual control device 9 is, the evaluation device 3 generates output signals. These output signals are dependent from the determined pressure difference.
  • the pressure difference limits are between 0 - 5 mbar.
  • a first operating mode I the signal generator 7 is controlled with these output signals.
  • An operator recognizes the signals from the signal generator 7 and controls it accordingly via the manual control device 9 to the air vent 8.
  • the air vent 8 is directly via the evaluation device 3 controlled so that the combination of sensor and evaluation device is part of a control system are.
  • the signal generator 7 shows the output signals of the evaluation device 3 for the operator to check at the same time.
  • the air extraction is controlled at fixed speed levels.
  • the air vent 8 is regulated continuously to the measured pressure difference or continuously controlled by the manual control device 9.
  • the manual control device is superimposed on the regulation in connection with the evaluation device, so that an operator can always control the air vent 8 directly.
  • FIG. 2 shows an air extraction device 1 in a second embodiment with a sensor for air pressure measurement in an operating room 5 and a reference sensor 2 'in a reference room 6.
  • the difference to the first embodiment is that a temperature sensor 10 and a bandpass filter 4 are not necessary.
  • a memory 11 in the evaluation device is also not required. From the current values of sensor 2 and the reference sensor 2 'current differential pressure values in the evaluation device 3 are compared of the two measured values.
  • the two operating modes, a first operating mode l with a manual control of the air vent 8 via the manual control device 9 and one second operating mode II, that is to say a control mode, are identical to the exemplary embodiment from FIG. 1.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
  • Sampling And Sample Adjustment (AREA)
EP03006665A 2002-07-19 2003-03-25 Appareil et méthode d'extraction de l'air Withdrawn EP1382914A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10232992 2002-07-19
DE2002132992 DE10232992A1 (de) 2002-07-19 2002-07-19 Luftabzugsvorrichtung und Luftabzugsverfahren

Publications (2)

Publication Number Publication Date
EP1382914A2 true EP1382914A2 (fr) 2004-01-21
EP1382914A3 EP1382914A3 (fr) 2004-12-15

Family

ID=29762080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03006665A Withdrawn EP1382914A3 (fr) 2002-07-19 2003-03-25 Appareil et méthode d'extraction de l'air

Country Status (2)

Country Link
EP (1) EP1382914A3 (fr)
DE (1) DE10232992A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004090426A1 (fr) * 2003-04-10 2004-10-21 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de commande pour systeme d'evacuation de vapeurs
DE102005063350B4 (de) * 2005-06-04 2008-04-24 Diehl Ako Stiftung & Co. Kg Dunstabzugshaube
CN102589025A (zh) * 2012-02-17 2012-07-18 宁波方太厨具有限公司 一种油烟机的风机转速自适应调节装置及其控制方法
DE202012006361U1 (de) 2012-07-03 2013-10-09 Broko Gmbh Elektroproduktion Und Vertrieb Sicherheitsvorrichtung für ein Abluftsystem
GB2505146A (en) * 2012-04-11 2014-02-26 Graham Stanley Harrison Electronic local extract ventilation monitoring device
CN106705160A (zh) * 2016-12-11 2017-05-24 杭州老板电器股份有限公司 吸排烟汽效果评估装置及评估方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004039549A1 (de) * 2004-08-13 2005-11-03 Miele & Cie. Kg Dunstabzugshaube zur Absaugung von Kochdunst
DE102008012395A1 (de) * 2007-09-28 2009-04-23 Miwe Michael Wenz Gmbh Backofen mit Luftaustrittsöffnung
DE102012213692A1 (de) 2012-08-02 2014-02-06 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugsvorrichtung und Verfahren zum Ansteuerung eines Lüftermotors eines Lüfters und zur Luftreinigungswirkungsermittlung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7633882U1 (de) 1976-10-28 1977-02-24 Jaecker, Franz Wolfgang, 4970 Bad Oeynhausen Elektrisch betriebene Dunstabzugshaube für eine An- oder Einbauküche mit einem Gas- oder Elektrokochherd mit/ohne Zeitschaltautomatik
DE2518750B2 (de) 1975-04-26 1979-06-28 E.G.O. Regeltechnik Gmbh, 7519 Oberderdingen Dunstabzugshaube über Kochherden o.dgl

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552059A (en) * 1984-09-18 1985-11-12 Cambridge Engineering, Inc. Flow measurement for exhaust-type canopy and ventilating hood
DE9101095U1 (fr) * 1991-01-31 1991-04-18 Invent Gmbh - Entwicklung Neuer Technologien, 8520 Erlangen, De
SE500073C2 (sv) * 1992-01-21 1994-04-11 Futurum Ab Ventilationsanläggning med spiskåpa
DE10028333B4 (de) * 2000-06-05 2007-01-11 Gärtner, Erich Sicherheits-Funk-Schaltungsanordnung für ein Abluftsystem

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2518750B2 (de) 1975-04-26 1979-06-28 E.G.O. Regeltechnik Gmbh, 7519 Oberderdingen Dunstabzugshaube über Kochherden o.dgl
DE7633882U1 (de) 1976-10-28 1977-02-24 Jaecker, Franz Wolfgang, 4970 Bad Oeynhausen Elektrisch betriebene Dunstabzugshaube für eine An- oder Einbauküche mit einem Gas- oder Elektrokochherd mit/ohne Zeitschaltautomatik

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004090426A1 (fr) * 2003-04-10 2004-10-21 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de commande pour systeme d'evacuation de vapeurs
DE102005063350B4 (de) * 2005-06-04 2008-04-24 Diehl Ako Stiftung & Co. Kg Dunstabzugshaube
CN102589025A (zh) * 2012-02-17 2012-07-18 宁波方太厨具有限公司 一种油烟机的风机转速自适应调节装置及其控制方法
GB2505146A (en) * 2012-04-11 2014-02-26 Graham Stanley Harrison Electronic local extract ventilation monitoring device
DE202012006361U1 (de) 2012-07-03 2013-10-09 Broko Gmbh Elektroproduktion Und Vertrieb Sicherheitsvorrichtung für ein Abluftsystem
CN106705160A (zh) * 2016-12-11 2017-05-24 杭州老板电器股份有限公司 吸排烟汽效果评估装置及评估方法

Also Published As

Publication number Publication date
DE10232992A1 (de) 2004-01-29
EP1382914A3 (fr) 2004-12-15

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