EP1843100A2 - Dispositif et procédé pour l'évacuation des fumées comprenant une sortie d'air rattachée à une installation de ventilation méchanique centralisée - Google Patents

Dispositif et procédé pour l'évacuation des fumées comprenant une sortie d'air rattachée à une installation de ventilation méchanique centralisée Download PDF

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Publication number
EP1843100A2
EP1843100A2 EP07075231A EP07075231A EP1843100A2 EP 1843100 A2 EP1843100 A2 EP 1843100A2 EP 07075231 A EP07075231 A EP 07075231A EP 07075231 A EP07075231 A EP 07075231A EP 1843100 A2 EP1843100 A2 EP 1843100A2
Authority
EP
European Patent Office
Prior art keywords
cmv
air
exhaust
exhaust device
air outlet
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Withdrawn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
EP07075231A
Other languages
German (de)
English (en)
Other versions
EP1843100A3 (fr
Inventor
Berend Kruse
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.)
LENTINK METAALWAREN BV
Original Assignee
ABK InnoVent BV
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 ABK InnoVent BV filed Critical ABK InnoVent BV
Publication of EP1843100A2 publication Critical patent/EP1843100A2/fr
Publication of EP1843100A3 publication Critical patent/EP1843100A3/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Withdrawn legal-status Critical Current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

Definitions

  • the present invention relates to a device for exhausting air, comprising an exhaust device provided with an air inlet for exhausting air from a room, an air outlet and connecting means for connecting the air outlet of the exhaust device to a central mechanical ventilation system (cmv) provided with a first fan of a building.
  • a central mechanical ventilation system (cmv) provided with a first fan of a building.
  • Such a device is used as a range hood for use in a kitchen of a house which has a cmv.
  • a cmv is a central ventilation system wherein a first fan generates an underpressure in the cmv in comparison with the atmospheric pressure in the house, and wherein a number of exhaust points are provided in rooms from which it may be desirable to exhaust undesirable air, such as sanitary rooms and the kitchen of the house.
  • the known range hood is mounted above a cooking ring, so that undesirable cooking smells can be exhausted more directly than by means of an exhaust point mounted in a wall of the kitchen. Since the range hood is mounted above the place where a large part of the undesirable air rises when cooking, a large part of said undesirable air is caught by the range hood and subsequently carried into the cmv.
  • the underpressure that is generated in the cmv by the first fan reinforces the exhaust action of the range hood.
  • a drawback of the known range hood is the fact that the exhaust capacity of a cmv is limited, frequently to maximally 120 m 3 per hour. This is insufficient for an adequate exhaustion of cooking smells from a kitchen, so that the undesirable cooking smells can to some extent spread in the kitchen and possibly also over the rest of the house.
  • range hood having a greater exhaust capacity range hoods with a built-in fan for use in domestic kitchens have a capacity of as much as 1000 m 3 per hour
  • range hood may not be connected to the cmv, because it would interfere with the operation of the cmv or even lead to a breakdown of the cmv.
  • the range hood having a built-in fan and thus a greater exhaust capacity must be connected to a separate air exhaust duct, therefore, but such an air exhaust duct is not always available in a house.
  • an object of the present invention to provide an exhaust device as mentioned in the introduction which has a greater exhaust capacity than the cmv so as to obtain a better exhaustion of air than is possible with the known exhaust device.
  • This object is achieved by the present invention in that the exhaust device is provided with a second fan so as to enable a more powerful exhaustion of air at the exhaust device than by means of the cmv, and in that means are provided for diverting at least part of the air flow from the air outlet of the exhaust device away from the connection to the cmv.
  • the exhaust device may nevertheless be provided with a fan of its own, which enables a more powerful exhaustion of air, whilst preventing the risk of derangement or even a breakdown of the cmv. The object of the present invention is thus achieved.
  • range hoods which return all the exhausted air to the room outside the range hood from which the range hood extracted air.
  • a fan mounted in the range hood causes air to be sucked into the range hood through the air inlet.
  • the sucked-in air is filtered in the range hood and subsequently returned, via the air outlet, to the room from which the air was extracted.
  • the capacity of the cmv may be utilised by means of the present invention for permanently extracting air exhausted by the range hood from the room.
  • a motorised extracting hood having an air inlet provided with a grease filter, behind which a fan is disposed, which sucks in air from the room to be ventilated and blows it into two separate compartments, each compartment having a separate air outlet.
  • One air outlet opens into the room to be ventilated and the other air outlet opens into a tube, which is in turn connected to a cmv.
  • Said device does not comprise means for diverting at least part of the air flow from the other outlet away from the connection to the cmv. In said device the separation of the air flow through the air inlet takes place directly behind the grease filter at the air inlet.
  • a dividing device is provided between the air outlet of the exhaust device and the connection to the cmv for dividing an air flow from the air outlet of the exhaust device into a first subflow to the cmv and a second subflow. If the air flow from the air outlet of the exhaust device is larger than the exhaust capacity of the cmv, an excess portion of said air flow can be diverted away from the cmv with the second subflow by dividing the air flow from the air outlet.
  • a constant volume regulator is provided between the air outlet of the exhaust device and the cmv.
  • the constant volume regulator is preferably provided between the dividing device and the cmv.
  • means that regulate the air flow to the cmv are provided at the connection point to the cmv, but as a rule this only has a limited regulating effect. If there is a chance of a comparatively large overpressure prevailing outside the connection point for the cmv, a constant volume regulator can prevent the flow of a (too) large volume of air into the cmv in spite of the presence of the limited provisions that are already present.
  • the device is provided with a recirculation opening for recirculating at least part of the air to a room from which the exhaust device exhausted the air.
  • a recirculation opening for recirculating at least part of the air to a room from which the exhaust device exhausted the air.
  • the second subflow is led to the recirculation opening. This enables a quick discharge of "excess" air from the device to the room where there may be an underpressure.
  • the exhaust capacity of the exhaust device is adjustable. This makes it possible to turn the exhaust device on and off, if desired, and to adjust the exhaust capacity of the exhaust device according to the prevailing circumstances.
  • the maximum exhaust capacity of the exhaust device is at least 120 m 3 per hour.
  • the normal exhaust capacity of a cmv is about 120 m 3 per hour. Only an exhaust device having a higher maximum exhaust capacity will provide a better exhaustion of air from a room, at least when set to a capacity of more than 120 m 3 per hour.
  • the maximum exhaust capacity of the exhaust device is maximally 1040 m 3 per hour. This is the maximum capacity of range hoods for domestic use, because a larger capacity would result in a (too) large underpressure being generated in a kitchen, which might lead to undesirable air flows in the house.
  • the exhaust device comprises a filter device, preferably comprising a odour filter and/or a grease filter.
  • a filter device preferably comprising a odour filter and/or a grease filter.
  • the present invention further relates to a connecting device for connecting an air outlet of an exhaust device for exhausting air to a central mechanical ventilation system (cmv) provided with a first fan of a building.
  • a connecting device for connecting an air outlet of an exhaust device for exhausting air to a central mechanical ventilation system (cmv) provided with a first fan of a building.
  • Such a connecting device consists of a length of pipe for connecting the air outlet of the exhaust device to the cmv.
  • a drawback of such a connecting device is that its use is limited to connecting an exhaust device that does not have a fan of its own. After all, all the air exhausted by the fan is carried to the cmv. A fan mounted in the exhaust device would cause an overpressure at the connection to the cmv, with the attendant risks already mentioned in the foregoing.
  • the connecting device comprises means for diverting at least part of the air flow from the air outlet of the exhaust device away from the connection to the cmv.
  • the connecting device preferably comprises a dividing device for dividing an air flow from the air outlet of the exhaust device into a first subflow to the cmv and a second subflow. This makes it possible to divert part of said air flow away from the cmv, possibly in dependence on the intensity of the air flow from the air outlet, so as to prevent said part of the air flow from interfering with the operation of the cmv.
  • the connecting device comprises a constant volume regulator for regulating the volume that can flow into the cmv.
  • Said constant volume regulator may enhance the operation of means for regulating the air flow from outside to inside the cmv, which means are provided at the connection to the cmv already. In addition, this enhances the effect realised by the dividing device. It is conceivable to use a constant volume regulator without using a dividing device, in particular in the case of range hoods provided with a less powerful fan of their own.
  • the present invention further relates to a building comprising a central mechanical ventilation system (cmv) provided with a first fan, which cmv comprises at least one connection for connecting an exhaust device.
  • cmv central mechanical ventilation system
  • Such a device is known to be used in houses provided with a cmv.
  • a connection is present to which a resident can connect a motorless range hood mounted over a cooking ring, which is suitable for catching cooking air.
  • a motorless range hood mounted over a cooking ring, which is suitable for catching cooking air.
  • only motorless range hoods may be connected to such a connection.
  • connection comprises a dividing device for dividing an air flow from the air outlet of the exhaust device provided with a fan of its own into a first subflow to the cmv and a second subflow.
  • the present invention also relates to a method for connecting an exhaust device to a central mechanical ventilation system (cmv) provided with a first fan of a building.
  • a method for connecting an exhaust device to a central mechanical ventilation system (cmv) provided with a first fan of a building comprises the provision of a connecting duct between an air outlet of the exhaust device and the connection to the cmv.
  • a drawback of the known method is that only exhaust devices not having any exhaust capacity or a limited exhaust capacity can be connected to the cmv therewith, because derangement or even a breakdown of the cmv caused by a (too) large inflow of air via the exhaust device must be prevented.
  • a range hood 1 is shown, a duct 2 of which is shown separately.
  • the duct is provided with ventilation openings 11.
  • the exhaust box 3 At the bottom of the range hood 1 is the exhaust box 3, on which a casing 4 surrounding a fan (not shown) of the range hood 1 is mounted.
  • the fan can be set by means of a switch 12.
  • Mounted on the casing 4 is a connecting device 5 for connecting the range hood 1 to a central mechanical ventilation system (cmv), which is not shown in figures 1 and 2.
  • a constant volume damper 6 having an outer circumference that corresponds to the circumference of a connecting point for a cmv is disposed at the top of the connecting device 5.
  • FIG 2 is an exploded view of the connecting device 5 according to the invention, which is shown in assembled condition in figure 1.
  • the connecting device comprises a housing formed by a box 7 with front plates 8, between which a V-shaped air divider with laterally projecting ends on both legs is provided as a dividing element. Disposed on the casing is the constant volume damper 6.
  • Figure 3 schematically shows the contours of the exhaust box 3 with the casing 4 for a fan 10.
  • the casing blends into the connecting device 5, with the figure showing the contours of the box 7 within which the air divider 9 is present.
  • Disposed on the box 7 is the constant volume damper 6.
  • the casing 4 and the connecting device are surrounded by the duct 2, in which ventilation openings 11 are provided.
  • Arrows A, B, C, C1, C2 schematically indicate directions of possible air flows within the range hood 1, in which directions air can flow in dependence on the position of the fan.
  • the range hood 1 When the range hood 1 has been turned on by means of the switch 12, air is sucked into the range hood 1 via the exhaust box 3 in that the fan 10 generates an underpressure in the casing 4.
  • the air flows from the exhaust box 3 into the casing 4 via a filter device 13 provided with a carbon filter for filtering odours from the air and a labyrinth filter for filtering grease particles from the air.
  • the division of the air flow C into subflows C1 and C2 takes place as a result of the air divider 9 laterally defecting the air flow C from the casing 4, as a result of which the air flow C is decelerated and a kind of lee is created in the wings of the box 7. Because of said lee, the cmv can draw a correct amount of air from the box 7 into the cmv via the constant volume damper 6.
  • the constant volume damper 6 compensates the relatively low overpressure that may prevail in the box 7 as a result of the constant inflow of air that is blown from the casing 4 into the box 7 by the fan 10.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
EP07075231A 2006-04-04 2007-03-28 Dispositif et procédé pour l'évacuation des fumées comprenant une sortie d'air rattachée à une installation de ventilation méchanique centralisée Withdrawn EP1843100A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1031508A NL1031508C2 (nl) 2006-04-04 2006-04-04 Inrichting voor het afzuigen van lucht, aansluitinrichting en werkwijze voor een dergelijke inrichting, gebouw voorzien van een dergelijke inrichting.

Publications (2)

Publication Number Publication Date
EP1843100A2 true EP1843100A2 (fr) 2007-10-10
EP1843100A3 EP1843100A3 (fr) 2012-01-25

Family

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Family Applications (1)

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EP07075231A Withdrawn EP1843100A3 (fr) 2006-04-04 2007-03-28 Dispositif et procédé pour l'évacuation des fumées comprenant une sortie d'air rattachée à une installation de ventilation méchanique centralisée

Country Status (2)

Country Link
EP (1) EP1843100A3 (fr)
NL (1) NL1031508C2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023311A1 (de) 2008-05-13 2009-11-19 BSH Bosch und Siemens Hausgeräte GmbH Umluftweiche sowie Verfahren zum Montieren einer Umluftweiche
JP2015064144A (ja) * 2013-09-25 2015-04-09 パナソニックエコシステムズ株式会社 レンジフード
CN106642249A (zh) * 2016-12-02 2017-05-10 宁波方太厨具有限公司 一种双风机串联的吸油烟机
EP2144011A3 (fr) * 2008-07-10 2017-11-29 BSH Hausgeräte GmbH Dispositif d'aspiration de vapeur
CN108278643A (zh) * 2017-01-06 2018-07-13 博西华电器（江苏）有限公司 抽油烟机及其风机衔接管
EP2899470B1 (fr) * 2014-01-15 2021-01-20 Wesco Ag Hotte aspirante

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101813355B (zh) * 2009-02-12 2014-08-27 索莱尔&帕劳通风设备集团公司 具有可导向喷嘴的机械控制通风装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6813492A (fr) * 1968-09-20 1970-03-24
NL1011306C2 (nl) * 1999-02-15 2000-08-17 Itho B V Luchtafzuiginstallatie.
FR2812933B1 (fr) * 2000-08-09 2002-11-15 Aldes Aeraulique Hotte de cuisine motorisee

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023311A1 (de) 2008-05-13 2009-11-19 BSH Bosch und Siemens Hausgeräte GmbH Umluftweiche sowie Verfahren zum Montieren einer Umluftweiche
WO2009138332A2 (fr) 2008-05-13 2009-11-19 BSH Bosch und Siemens Hausgeräte GmbH Déflecteur d'air et procédé de montage d'un déflecteur d'air
US20120094589A1 (en) * 2008-05-13 2012-04-19 Bsh Bosch Und Siemens Hausgerate Gmbh Air deflector and method for mounting an air deflector
EP2144011A3 (fr) * 2008-07-10 2017-11-29 BSH Hausgeräte GmbH Dispositif d'aspiration de vapeur
JP2015064144A (ja) * 2013-09-25 2015-04-09 パナソニックエコシステムズ株式会社 レンジフード
EP2899470B1 (fr) * 2014-01-15 2021-01-20 Wesco Ag Hotte aspirante
CN106642249A (zh) * 2016-12-02 2017-05-10 宁波方太厨具有限公司 一种双风机串联的吸油烟机
CN106642249B (zh) * 2016-12-02 2019-09-20 宁波方太厨具有限公司 一种双风机串联的吸油烟机
CN108278643A (zh) * 2017-01-06 2018-07-13 博西华电器（江苏）有限公司 抽油烟机及其风机衔接管
CN108278643B (zh) * 2017-01-06 2020-02-28 博西华电器（江苏）有限公司 抽油烟机及其风机衔接管

Also Published As

Publication number Publication date
EP1843100A3 (fr) 2012-01-25
NL1031508C2 (nl) 2007-10-05

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