EP3569948A1 - Dispositif d'aération - Google Patents

Dispositif d'aération Download PDF

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Publication number
EP3569948A1
EP3569948A1 EP18172847.8A EP18172847A EP3569948A1 EP 3569948 A1 EP3569948 A1 EP 3569948A1 EP 18172847 A EP18172847 A EP 18172847A EP 3569948 A1 EP3569948 A1 EP 3569948A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
sound
wall
ventilation device
room
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.)
Granted
Application number
EP18172847.8A
Other languages
German (de)
English (en)
Other versions
EP3569948B1 (fr
Inventor
Ralph Geisenhainer
André Heewig
Stefan Schulz
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.)
Inventer GmbH
Original Assignee
Inventer 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 Inventer GmbH filed Critical Inventer GmbH
Priority to EP18172847.8A priority Critical patent/EP3569948B1/fr
Publication of EP3569948A1 publication Critical patent/EP3569948A1/fr
Application granted granted Critical
Publication of EP3569948B1 publication Critical patent/EP3569948B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F2007/0025—Ventilation using vent ports in a wall
    • 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
    • F24F2007/005—Cyclic ventilation, e.g. alternating air supply volume or reversing flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F2012/008—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air cyclic routing supply and exhaust air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Definitions

  • the invention relates to a ventilation device for ventilating a room.
  • a ventilation device for ventilating a room.
  • a ventilation device comprises a wall sleeve for connecting an inside of a room with an outside. Under the outside is an external environment outside the building in which the space in question, which is to be ventilated, is understood.
  • the ventilating device further comprises a sound absorbing member made of a sound absorbing material and an axial fan operable in at least two operating states with opposite air conveying directions for conveying supply air from the outside to the inside of the room and for conveying exhaust air from the inside of the room to the outside is.
  • the axial fan is disposed in the wall sleeve, i. in the space enclosed by the wall sleeve.
  • the ventilation device also comprises a arranged between the axial fan and the outside in the wall mounting sleeve heat storage.
  • Such ventilation devices are used for example in modern housing and house construction for the ventilation of rooms or rooms of single and multi-family homes. These are decentralized ventilation devices that ventilate only individual rooms and therefore can be built quite compact. In contrast, central ventilation device are dimensioned much larger, since they have to ventilate a variety of rooms at the same time, to such central arrangements are made other requirements than decentralized arrangements: Central arrangements must achieve higher air currents and usually have larger fans and longer transport routes. Decentralized ventilation devices that ventilate only individual rooms, however, can be comparatively be built compact. The diameters of ventilation devices that can be used for such purposes are usually in the range between about 100 mm and 300 mm, the ventilation devices are used for example in the context of energy saving measures for efficient ventilation or fresh air supply, including in passive houses.
  • the devices for ventilation are placed decentralized in the house, more or less significant noise emissions are perceptible in the rooms, on the one hand noise emissions emitted by the device, i. In particular, the axial fan, even go out, on the other hand, outside noise can penetrate into the room.
  • a ventilation device which has a with the interior of the housing, which accommodates heat storage and axial fan, acoustically connected housing element, which consists of a material having sound-absorbing properties.
  • the in the EP 0 990 859 A2 described ventilation and ventilation device consists of several parts. It initially has an outer housing, which in turn also consists of several parts. The outermost layer of the housing is enclosed by the building wall. On the inside, the sound-absorbing housing element connects, which in turn is connected to an inner housing. This inner housing has a plurality of openings, which serve the acoustic connection of the air duct, which is enclosed by the inner housing.
  • the sound waves arrive according to EP 0 990 859 A2 to the sound-absorbing surface of the sound-absorbing housing element.
  • the sound-absorbing housing element can be formed for example by a sound-absorbing bulk material and the inner housing as a lattice structure.
  • the drawings of the EP 0 990 859 A2 It can be seen that the openings and the ribs of the grid both in the axial direction and in the tangential direction, ie are approximately the same size on the circumference of the inner housing.
  • the central region around the axis of rotation of the axial fan is surrounded in the axial direction by a sleeve, in which on the one hand the drive unit of the axial fan and on the other also electronic components, controls and control elements that are necessary for controlling and regulating the ventilation and venting system , are housed.
  • This sleeve may be surrounded by a shell made of a sound-absorbing material, which may also be reinforced with a grid structure or a perforated plate-like part, in contrast to the inner housing, this reinforcement is optional here.
  • Essential for efficient sound absorption are metal ribs which simultaneously serve as sound guiding elements and heat storage elements and are arranged tilted between the shell around the central area and the inner housing in the axial direction about this axis to sound waves to the openings in the inner housing or the shell order to head the central area.
  • the sound-conducting elements themselves can have a microperforation and further reduce the sound.
  • the in the EP 0 990 859 A2 described ventilation system is complex.
  • the sound waves In order to be effectively absorbed, the sound waves must contact through the openings of the inner housing with the sound-absorbing housing element, which adjoins the outer side of the inner housing. Since, in principle, the air flow is not directed at these openings but passes axially past them, sound-conducting elements which direct the air in the direction of the openings are necessary for efficient noise reduction. However, this also slows down the air flow or greatly reduces the sound pressure, so that the efficiency of the ventilation is reduced.
  • decentralized ventilation systems often use duct inserts made from sound-absorbing material which does not extend over the entire length and reduce the diameter.
  • the object of the invention is therefore to further develop a ventilation device of the type described above, that on the one hand the most efficient damping of sound from the outside and sound generated by the axial fan is reduced, on the other hand, the structure should be kept as simple as possible and It should not affect the air flow, ie the sound should be absorbed as well as possible, but without reducing the air flow.
  • the sound-absorbing element is designed as a sound-absorbing sleeve, which is fitted with respect to their outer dimensions in the wall mounting sleeve.
  • the sound insulating sleeve has a sleeve inner surface which defines the outer boundary of an air passage for the passage of air between the inside of the room and the outside; the axial fan and the heat accumulator are fixed in the sound insulation sleeve by a connection to this.
  • the material used for the sound insulating sleeve preferably has such a high strength that it is not or only slightly deformed under the mechanical load with the weight of the axial fan, the heat accumulator and possibly other components, i.
  • the heat accumulator consists of a ceramic material and has a plurality of straight, separated from each other by walls channels extending in a known manner along a predetermined by the axial fan and the wall sleeve mounting flow direction.
  • the ventilation device according to the invention uses standardized ceramic heat storage, as they are well known in the art in the context of decentralized ventilation devices.
  • the use of additional sound-conducting elements which also take over the function of a heat storage, can be completely dispensed with in the present invention:
  • the sound-absorbing sleeve has a sleeve inner surface, which forms the outer boundary of the air duct, in contrast to the closest prior art, where an inner, apertured housing is located between the sound-absorbing element and the air duct.
  • tests have shown that a very good sound insulation can be achieved even without such additional measures and sound-conducting elements, if there are no additional lattice-shaped or openwork material layers between the sleeve inner surface of the soundproofing sleeve and the air duct.
  • the shape of the sound-absorbing sleeve is expediently adapted to the shape of the wall-mounting sleeve, for example, square or in particular circular cross-sections are particularly well.
  • the sleeve inner surface is composed of several abutting partial surfaces, in the case of a circular cross-section of the sound insulation sleeve is only one surface.
  • the sleeve inner surface may also have a deviating from the outer surface of the soundproofing sleeve and the wall mounting sleeve cross-section. The latter may be, for example, square, while the sleeve inner surface has a circular cross-section.
  • the sleeve inner surface forms the outer boundary of the air channel, i. between the sleeve inner surface and the air duct is no further housing with openings or other structure, which partially covers the sleeve inner surface.
  • the sleeve inner surface is over its entire longitudinal extent in direct contact with the air duct or defines this, without prejudice to the fact that the axial fan, the heat accumulator and possibly other elements such as tail units are arranged in the air duct and connected to the Schalldämmhülse.
  • These compounds can be made for example via adhesive layers as a one-way connection, but maintenance-friendly are reversible, detachable connections, for example by screws.
  • the components which are used in the soundproofing preferably non-positively connected thereto, more preferably by means of an interference fit, which is also referred to as a press fit.
  • the components - for example, axial fan, heat storage and tail units - at its outer periphery, for example. be provided with a few mm to about one cm thick sealing tape which is elastic, i. is reversibly deformable.
  • axial fans and heat storage which are offered in certain graded cross-sectional sizes, continue to be used, it must turn out only the wall openings correspondingly larger.
  • the soundproofing sleeve is preferably accurately received by the wall mounting sleeve in relation to the cross section.
  • the sound insulation sleeve has a slight interference fit - also referred to as a press fit - has.
  • the interference fit is also considered as a fit in the wall mounting sleeve. This also secures the sound-absorbing sleeve against displacements in the axial direction.
  • the sound-absorbing sleeve is secured by two patch on the open ends of the wall mounting sleeve Schalldämmhülsen cover caps against axial displacements relative to the wall mounting sleeve, also the ends of the soundproofing sleeve are thereby protected against external influences.
  • the silencer covers may be force and / or or be positively connected to the wall mounting sleeve and / or bolted to the wall. They may for example be annular, it is essential that they do not or only slightly narrow the defined by the sleeve inner surface air duct, for example by enclosing the edge of the sleeve inner surface in the manner of a lid.
  • the sound-deadening sleeve is fitted not only from the cross-section into the wall-mounting sleeve, but also from the length, i. the length of the sound insulation sleeve corresponds to the length of the wall mounting sleeve almost, except for compared to the total length of the wall sleeve negligible areas of the wall sleeve, which may be needed to attach, for example, protective covers on the outer sides. Since virtually the entire length of the wall sleeve for the sound insulation sleeve is thus utilized, the sound insulation is particularly efficient.
  • the sound-absorbing sleeve is preferably manufactured in one piece from a sound-insulating material.
  • the sound insulation sleeves can be cut from a prefabricated tube.
  • Particularly suitable materials for the soundproofing sleeve are open-cell foams or foams, since they can absorb the sound to a high degree. Closed pore foam may also be used, but has a lower level of sound absorption.
  • a melamine-based (cyanuric triamide-based) open-cell foam can be used as the material for the soundproofing sleeve.
  • the soundproofing sleeve is preferably coated on at least the sleeve inner surface with an antibacterial protective film.
  • an antibacterial protective film In the case of an open cell foam, the pores are not closed by this protective film, the protective film follows the surface of the foam.
  • the sleeve inner surface can then be cleaned better, in addition, the components are easier to remove in case of maintenance, since the sliding properties are improved.
  • the materials used for the soundproofing sleeve should have the largest possible surface area on the inner surface of the sleeve, which can be achieved, for example, by pores, high roughness or a fissuring structure.
  • the material must have such a strength that allows it to securely fix the axial fan and the heat storage to it.
  • the axial fan with the impeller rotating during operation must be able to be fixed so as to prevent vibration or displacement due to the forces caused by the rotation.
  • FIG. 1 a longitudinal section through a ventilation device for loading and venting a room with a soundproofing element.
  • Fig. 1 shows a longitudinal section through a ventilation device for ventilating a room.
  • This ventilation device comprises a wall sleeve 1 for connecting an inside of the room with an outside.
  • the ventilation device is used with the wall sleeve 1 in a wall 2, the wall 2 separates the inside of the room from the outside, which is usually part of an outdoor environment outdoors.
  • Fig. 1 On the left of the wall is the inside of the room, on the right side of the wall is the outside.
  • the ventilation device on its outer side an outer cap 3.
  • On the inside of the room, the ventilation device is protected by an inner cap 4 and a ventilation grille 5.
  • the inner cap 4 may be adjustable in its inclination, for example, to direct the incoming air targeted in different directions in space.
  • the ventilation device shown here in longitudinal section may, for example, have a round or angular profile in cross-section; in the following, it will be assumed by way of example of a round profile in cross-section.
  • the wall sleeve 1 is designed tubular in this case. On its inside, the wall mounting sleeve 1 is lined with a sound absorbing element consisting of a sound-absorbing material, namely a soundproofing sleeve 6, while the soundproofing sleeve 6 is fitted in the wall mounting sleeve 1 from the length.
  • This lengthwise fitting is not absolutely necessary, however - as in the example shown here - advantageous to achieve the most efficient soundproofing, which is better, the longer the distance traveled in the soundproofing sleeve 6 of the sound waves.
  • the sound insulation sleeve 6 with respect to its outer dimensions, ie with respect to its outer diameter fitted into the wall sleeve 1, either fit or with interference fit.
  • the sound-absorbing sleeve 6 is formed here in one piece, but it can also be composed of several sections, if it simplifies the production.
  • the soundproofing sleeve 6 has a Sleeve inner surface 7, which defines the outer boundary of an air passage for the passage of air between the inside of the room and the outside.
  • Suitable materials for the soundproofing sleeve 6 are in particular those materials which have a large, irregularly shaped surface, such as foams with pores or micropores, or materials having a plurality of fibers on their surface.
  • an open-cell foam based on cyanuric triamide, also referred to as melamine is particularly well suited.
  • the foam is then flame retardant, abrasive and temperature resistant.
  • the sound-absorbing sleeve 6 is preferably coated or sealed at least on the sleeve inner surface 7 with an antibacterial protective film, wherein the pores remain open.
  • the sleeve inner surface 7 defines the outer boundary of an air passage, i. between the sleeve inner surface 7 and the air duct is no further layer of any material, which would further reduce the air duct.
  • the in the wall sleeve 1 - i. in the space encompassed by it - arranged and essential for the operation of components - an axial fan with blades 8 and a stator 9, a heat storage 10 and optionally two tail units 11, 12 - are specifically fixed in the soundproofing 6.
  • the axial fan and the heat accumulator 10 are as well as the Leitmaschinete 11, 12 fixed in the sound insulation sleeve 6 by a connection to this. This compound can be reversible or irreversible.
  • the components can be adhesively bonded via corresponding contact surfaces with the sleeve inner surface 7 or screwed thereto.
  • the arrangement of the components in the interior of the soundproofing sleeve 6, however, is harmless to the fact that the sleeve inner surface 7 forms the outer boundary of the air duct, the air so apart from the areas where components are arranged, over the entire region of the sleeve inner surface 7 has the opportunity to contact and interact with this surface, resulting in sound insulation.
  • the axial fan with the stator housing 9 and the blades 8 is operable in at least two operating states with opposite air conveying directions.
  • An operating state serves to convey supply air from the outside to the inside of the room, in the other operating state, exhaust air is conveyed from the inside of the room to the outside.
  • the ventilation device and in particular the axial fan can be operated in reverse operation.
  • the ventilation device may be connected to a controller, which in turn may in turn be connected to temperature and / or humidity sensors, so that the ventilation device can also be used for dehumidifying rooms.
  • the heat accumulator 10 which acts as a heat exchanger, is arranged in the soundproofing sleeve 6. Will this be with air flows through it, it assumes the temperature of the air at constant current. If, for example, cooler air is drawn in from the outside, the heat accumulator 10 cools down. If, subsequently, warmer air is blown from the inside to the outside, the heat accumulator 10 cools this air, but heats up at the same time. With repeated reversal of the flow direction of the heat storage 10 then acts as a heat exchanger, it warms the absorbed air and cools itself off.
  • the heat accumulator 10 is made of a ceramic material and has a plurality of channels separated from one another by walls, which extend along a flow direction predetermined by the axial fan and the wall sleeve 1. Ceramic heat accumulators are particularly advantageous because they are not only a high heat capacity and resistant to nucleation, unless they are permanently exposed to moisture and dried at regular intervals by heating. To avoid nucleation, the ceramic heat storage 10 on its outer periphery an insulation 13.
  • the insulation 13 of the heat accumulator 10 prevents thermal cooling on the outer wall and on the other tolerances of the wall sleeve can be compensated: In practice, it often happens that when foaming the wall sleeve in the wall, the round geometry due to excessive pressure, the caused by the foaming, is changed to a slightly oval geometry. This can be compensated by the insulating layer.
  • the ventilation device is equipped with two tail units 11, 12.
  • the arranged between the axial fan and the heat accumulator 10 tail 11 serves to compensate for the radial swirl of air flowing out of the room.
  • the tail unit 12, which is arranged between the axial fan and the inside of the room, serves to increase the pressure build-up and the air volume flow of air flowing into the room.
  • the sound emission can be significantly reduced and the sound transmission can be significantly reduced. Since the active and passive components are arranged and fixed in the soundproofing sleeve 6, there are no dead zones or losses for the volume flow.
  • Previously used heat storage, axial fans and tail units can be used, since the diameter of the sound-absorbing sleeve 6 corresponds to the diameter of a previously known wall mounting sleeve for ventilation devices without sound insulation sleeves 6. A conversion and retrofitting of existing systems is thus possible in principle without much effort. Only a larger wall sleeve 1 must be used, according to the breakthrough must be larger by the wall into which the ventilation device is used.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP18172847.8A 2018-05-17 2018-05-17 Dispositif d'aération Active EP3569948B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18172847.8A EP3569948B1 (fr) 2018-05-17 2018-05-17 Dispositif d'aération

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18172847.8A EP3569948B1 (fr) 2018-05-17 2018-05-17 Dispositif d'aération

Publications (2)

Publication Number Publication Date
EP3569948A1 true EP3569948A1 (fr) 2019-11-20
EP3569948B1 EP3569948B1 (fr) 2022-09-21

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EP18172847.8A Active EP3569948B1 (fr) 2018-05-17 2018-05-17 Dispositif d'aération

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112178857A (zh) * 2020-10-23 2021-01-05 沈哲艺 一种节能建筑通风装置及通风方法
US11678749B2 (en) 2020-01-03 2023-06-20 Sleep Number Corporation Pressure-based bed microclimate control

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949830A (en) 1975-06-20 1976-04-13 George Koch Sons, Inc. Fan silencer
US3976393A (en) * 1975-08-27 1976-08-24 Candaian Hurricane Equipment Ltd Portable fan housing
EP0990859A2 (fr) 1998-09-29 2000-04-05 Roland Baumann Dispositif d'amenée et évacuation d'air
EP1628084A1 (fr) * 2003-04-23 2006-02-22 Tosho Engineering Co., Ltd. Ventilateur
GB2427653A (en) * 2005-06-29 2007-01-03 Caice Acoustic Air Movement Lt Isolated fan unit
DE202010010607U1 (de) * 2010-07-23 2011-11-04 Mdm Diels Gmbh Entlüftungs- und Belüftungsanlage
EP3121527A1 (fr) * 2015-07-21 2017-01-25 Aereco GmbH Dispositif d'aeration pour des pieces de batiment
EP3168544A1 (fr) * 2015-11-12 2017-05-17 InVENTer GmbH Dispositif d'aération

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949830A (en) 1975-06-20 1976-04-13 George Koch Sons, Inc. Fan silencer
US3976393A (en) * 1975-08-27 1976-08-24 Candaian Hurricane Equipment Ltd Portable fan housing
EP0990859A2 (fr) 1998-09-29 2000-04-05 Roland Baumann Dispositif d'amenée et évacuation d'air
EP1628084A1 (fr) * 2003-04-23 2006-02-22 Tosho Engineering Co., Ltd. Ventilateur
GB2427653A (en) * 2005-06-29 2007-01-03 Caice Acoustic Air Movement Lt Isolated fan unit
DE202010010607U1 (de) * 2010-07-23 2011-11-04 Mdm Diels Gmbh Entlüftungs- und Belüftungsanlage
EP3121527A1 (fr) * 2015-07-21 2017-01-25 Aereco GmbH Dispositif d'aeration pour des pieces de batiment
EP3168544A1 (fr) * 2015-11-12 2017-05-17 InVENTer GmbH Dispositif d'aération

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11678749B2 (en) 2020-01-03 2023-06-20 Sleep Number Corporation Pressure-based bed microclimate control
US11684166B2 (en) 2020-01-03 2023-06-27 Sleep Number Corporation Power consumption monitor and control for bed
US11684168B2 (en) 2020-01-03 2023-06-27 Sleep Number Corporation Bed microclimate control based on sampling
US11684167B2 (en) 2020-01-03 2023-06-27 Sleep Number Corporation Bed air control system
US11779128B2 (en) * 2020-01-03 2023-10-10 Sleep Number Corporation Bed microclimate controller
US11889925B2 (en) 2020-01-03 2024-02-06 Sleep Number Corporation Bed microclimate control in multiple zones
US11896134B2 (en) 2020-01-03 2024-02-13 Sleep Number Corporation Bed microclimate control with external heat compensation
US11918119B2 (en) 2020-01-03 2024-03-05 Sleep Number Corporation Bed microclimate control with preparation cycle
US11930934B2 (en) 2020-01-03 2024-03-19 Sleep Number Corporation Mattress reinforcement system
US11937701B2 (en) 2020-01-03 2024-03-26 Sleep Number Corporation Bed microclimate control
CN112178857A (zh) * 2020-10-23 2021-01-05 沈哲艺 一种节能建筑通风装置及通风方法

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