EP0801275A2 - Clapet de remplacement d'air - Google Patents

Clapet de remplacement d'air Download PDF

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Publication number
EP0801275A2
EP0801275A2 EP97660040A EP97660040A EP0801275A2 EP 0801275 A2 EP0801275 A2 EP 0801275A2 EP 97660040 A EP97660040 A EP 97660040A EP 97660040 A EP97660040 A EP 97660040A EP 0801275 A2 EP0801275 A2 EP 0801275A2
Authority
EP
European Patent Office
Prior art keywords
air
window
air flow
replacement
channeling
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
EP97660040A
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German (de)
English (en)
Other versions
EP0801275B1 (fr
EP0801275A3 (fr
Inventor
Tapio Tarpio
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Individual
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Individual
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Publication date
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Application filed by Individual filed Critical Individual
Publication of EP0801275A2 publication Critical patent/EP0801275A2/fr
Publication of EP0801275A3 publication Critical patent/EP0801275A3/fr
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Publication of EP0801275B1 publication Critical patent/EP0801275B1/fr
Anticipated expiration legal-status Critical
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    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/18—Air-flow control members, e.g. louvres, grilles, flaps or guide plates specially adapted for insertion in flat panels, e.g. in door or window-pane
    • 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

Definitions

  • the present invention relates to a replacement air valve according to the preamble of claim 1.
  • the replacement air is preferably taken from outside air. Also important for maintaining good indoor air quality is the air exchange that takes place quickly enough.
  • Replacement air valves are also known which are installed in the room, advantageously above the window, the outside air being fed directly into the room through the valves.
  • This can e.g. are designed so that a duct for the replacement air valve is arranged in the wall part above the window, where the replacement air valve is installed.
  • This type of replacement air valve has the disadvantage that it is very difficult or impossible to edit a bushing in the wall when retrofitted.
  • the Finnish patent specification Fl-56880 describes a replacement air valve which is provided for installation in the casement frame and which comprises the ducting for supplying the replacement air into the building space and the control elements of the air flow, which at least the air to be supplied to the building space partly point upwards.
  • This Fl patent has a disadvantage that the valve vertically occupies the relatively large space from the casement compared to the height of the actual air duct. In many cases, it is difficult to install this type of construction in the existing sash frame, for example for a basic repair, but the air exchange is not necessarily achieved.
  • the window pane area is also reduced by the valve, the amount of light entering through the window being reduced.
  • the Finnish layout specification Fl-96442 represents an outside air valve with control elements of the air flow and an air filter.
  • the valve is carried out directly in the casement.
  • This solution has the disadvantage, among other things, that moisture condenses in the interstices of the windows, particularly in cold weather, which is due to the fact that the inflowing cold air cools the skeleton structures of the outside air valve located in the interstices of the window panes.
  • the construction described in Fl-Auslegeschrift 96442 is a more complicated construction than the replacement air valve shown in the title application.
  • the attached brochure of the valve (Appendix 1) shows that the sound absorption capacity of the valve is significantly lower (36 dB maximum) than that of the valve shown in the present application.
  • the disadvantage of the external valve according to the Fl-Offenlegungsschrift should be mentioned that the air seal significantly increases the air flow resistance in the valve, which reduces the performance of the valve.
  • the valve described in US Pat. No. 4,050,364 comprises a duct made of sound-absorbing material. If the valve is in the position in which its sound absorption capacity is as large as possible, the air duct has up to six corners, some of which are even very steep, this duct forming a very great resistance to the inflowing air. The end result is that the flow needs to be boosted with a fan, but this adds to the complexity of the aforementioned valve construction, and on the other hand, it requires arranging the power input for the fan and also attenuating the fan's own noise. If an effective sound attenuation is to be achieved with the said valve construction, it requires a noticeably large vertical space compared to the height of the air duct in this direction. Among other things due to these factors, the replacement air valve shown in the US patent cannot in practice be designed as a slit valve to be installed within the mounting frame. The valve is intended for mounting on the wall, in the frame of the window or in an existing ventilation opening.
  • a replacement air valve construction which does not require complicated pipe connections.
  • This type of replacement air valve is advantageously designed such that a slot penetrating the frame is formed in the mounting frame, preferably above the window, to which the replacement air valve is installed.
  • the replacement air is taken through the slot built into the mounting frame.
  • a replacement air valve in such constructions for example, a closure piece adjustable by means of a screw is used, the distance between the closure piece and the slot machined in the mounting frame being adjustable.
  • the flow coming through the replacement air valve can also be regulated by regulating the distance.
  • This construction has the disadvantage, among other things, that the air flow coming through the replacement air valve is directed mainly downwards, near the inner surface of the window.
  • the replacement air to be taken in from outside is colder than the indoor air, especially in winter, the replacement air has a tendency to sink directly to the ground.
  • This phenomenon is also exacerbated by the fact that the window surface temperature inside the room is lower than the room air temperature.
  • the radiators normally installed under the window, with the warm air flow generated by the radiator rising upwards. The rising warm air flow prevents the downward flowing air flow coming through the replacement air valve from mixing with the room air.
  • the warm air that rises forms a kind of wall. This phenomenon increases the flow of the colder replacement air against the floor.
  • the vertical room temperature differences are large, which results in a feeling of draft and the room air temperature must be increased accordingly.
  • the replacement air valve formed on the mounting frame still has the disadvantage that the flow duct is typically perpendicular to the window plane, the flow duct being short and the sound damping capacity of the replacement air valve being poor. Furthermore, it is cumbersome to arrange the filtering of the outside air, with dust in particular being able to easily penetrate into the room air.
  • the object of the present invention is to eliminate the aforementioned disadvantages to the greatest possible extent and to provide a replacement air valve, as a result of which the replacement air to be taken up into the room air is mixed with the room air, the feeling of draft is reduced and the heating requirement is reduced.
  • Characteristic of the invention is that which emerges from the characterizing part of the attached patent claim 1.
  • the replacement air valve according to the invention achieves considerable advantages compared to the replacement air valves according to the prior art.
  • the installation of the replacement air valve according to the invention is simple, the installation of the replacement air valve being possible without major changes.
  • the replacement air valves can advantageously be installed in the mounting frame in the factory.
  • the replacement air valve according to the invention can also be easily arranged in place of the already existing replacement air valve arranged in connection with the mounting frame by small modification work.
  • the sound absorption capacity of the replacement air valve according to the invention is also better than that of the replacement air valves known today.
  • air purification can be achieved in the replacement air valve according to the invention without the However, significantly reduce air flow.
  • the replacement air valve according to the invention can also be adjusted, the amount of air flowing through the replacement air valve being able to be regulated as required.
  • Window 1 in FIG. 1 comprises at least one window pane 2, a casement 3, a mounting frame 4 and a replacement air valve 5.
  • the window pane 2 is fastened to the casement 3, the window pane 2 and the casement 3 advantageously forming the part of the window 1 that is to be opened .
  • the wing frame 3 is fastened to the mounting frame 4 by known hinges or the like.
  • the sash 3 can be closed by a locking bolt on the mounting frame 4.
  • the hinges and locking latches are not shown in FIG. 1.
  • Window 1 in FIG. 1 is shown viewed from the building space, the main plane of window 1 and the image plane being parallel to one another.
  • a slot 6 has been machined, which penetrates the upper horizontal part 4a of the mounting frame perpendicular to the main plane of the window. Slot 6 is dimensioned so that the replacement air valve 5 can be mounted there.
  • Window 1 in FIG. 1 is shown as a cross section of the plane of the side surface of the mounting frame 4 on the side of the building space, the control elements of the air flow 7 of the replacement air valve 5 not being shown in FIG. 1.
  • the replacement air valve 5 advantageously comprises the control elements of the air flow 7 and the channeling elements 8.
  • the control elements of the air flow 7 preferably consist of the upper control element of the air flow 7a and the lower control element of the air flow 7b.
  • One of the control elements of the air flow 7a, 7b is preferably arranged such that it is movable in the slot 6.
  • the upper control element of the air flow 7a is fixedly attached to the surface of the slot 6, as shown in FIG. 2.
  • the lower control element of the air flow 7b is arranged such that it can be moved perpendicular to the main plane of the window 1.
  • the control elements of the air flow 7a, 7b are advantageously designed such that when the lower control element of the air flow is pushed deeper in the slot 6, the diameter of the air flow channeling is reduced and the amount of air flow is also reduced accordingly.
  • the diameter of the air flow channeling increases, and the amount of air flow also increases accordingly.
  • this has been carried out in such a way that the edge of the control elements of the air flow 7a, 7b lying on the side of the building space I is bent in a corner shape with respect to the sliding direction of the control element 7b, the distance between the corner-shaped edges when moving of the lower control member of the air flow 7b changes.
  • An air flow channel 9 is formed between the control elements of the air flow 7a, 7b by means of the channeling element 8.
  • 3a and 3b a top view of two advantageous constructions of the channeling elements 8 is shown in cross section.
  • the channeling elements comprise a first channeling element 8a, a second channeling element 8b and a third channeling element 8c.
  • the thickness of the channeling elements parallel to the main plane of the window 1 is preferably essentially the same as the distance of the control elements of the air flow 7a, 7b parallel to the main plane of the window 1 in the slot 6.
  • the cross section of the channeling seen from above is similar to the letter V, as can be seen in FIG. 3a. Due to the oblique channels, the replacement air coming into the building space is arranged such that it is directed against the edges of the window 1. The flows of the substitute air are marked by arrows V in FIGS. 2, 3a and 3b.
  • the effectiveness of the sound damping of the replacement air valve 5 according to the invention is based in particular on the fact that the channels of the channeling 9 are oblique and that the channeling elements 8a, 8b, 8c have been produced from sound-absorbing material.
  • the channeling elements 8a, 8b, 8c can advantageously be attached by gluing, for example, to the lower control element of the air flow 7b or to the upper control element of the air flow 7a.
  • the channeling elements 8a, 8b, 8c can also be fastened in such a way that the first and third channeling elements 8a, 8c are attached to the upper control element of the air flow 7a, and the second channeling element 8b to the lower control element of the air flow 7b. It follows from this that when the control elements move the air flow 7a, 7b in relation to one another the cross section of the channels 9a, 9b also changes, the adjustment of the air flow being more effective.
  • the replacement air to be taken in from outside U is conducted via a flow channel formed by the protective profile 10 and by the upper horizontal part of the frame 4a into the ducting 9 of the replacement air valve and further into the building room 1.
  • the control elements of the air flow 7a, 7b are preferably designed in such a way that the replacement air in the building space 1 is at least partially directed upwards against the ceiling. It is thereby achieved that the cooler replacement air is initially directed into the upper part of the building room 1 and generates an air flow in the building room 1, the warm air flowing at least partly downwards.
  • the temperature differences of the building space l are compensated vertically and the feeling of draft is reduced.
  • the reduced feeling of drafts and the more even room air temperature mean that the room air temperature can be reduced, which also helps to reduce heating costs.
  • FIG. 3b Another advantageous construction of the channeling 9 is shown in FIG. 3b.
  • the channels 9a, 9b have been lengthened in comparison to the embodiment in FIG. 3a.
  • the top view of the cross section of the channeling is then similar to the letter X, as can be seen from FIG. 3b.
  • the channels 9a, 9b are vertical from each other e.g. separated by a thin film or sheet 11, the air flows of the channels 9a, 9b not being able to mix in the replacement air valve 5.
  • the replacement air valve 5 according to FIG. 3b has an even better sound absorption.
  • the channeling 9 is formed from four channeling elements 8a-8d, which are advantageously triangular from the outside, the first channeling element 8a and the second channeling element 8b the first channel 9a, and the third channeling element 8c and the fourth channeling element 8d form the second channel 9b.
  • the channeling elements 8a-8d are preferably fastened to the sheet metal 11 which separates the channels 9a, 9b.
  • an air filter can be added, whereby it can advantageously be installed in the duct 9, e.g. opposite the flow direction of the replacement air in connection with the inlet opening of the sewer system. If the air filter is arranged parallel to the frame 4, effective filtering is achieved without the flow resistance becoming too great. This includes due to the fact that the diameter of the air inlet opening in this direction is noticeably larger than in the vertical direction of the channels 9a, 9b, the air flow velocity in the filter being lower than in the channels 9a, 9b.
  • the task of the protective profile 10 in FIG. 2 is, inter alia, to prevent rainwater and snow from entering the replacement air valve 5.
  • Protective profile 10 is at least partially open in the lower part, a flow channel for guiding the replacement air into the replacement air valve 5 being formed between the frame 4a and the protection profile 10.
  • test results of another replacement air valve according to the advantageous embodiment of the invention are shown in FIG. 5.
  • special attention was paid to the sound absorption capacity in the frequency range of road traffic noise, which mostly covers the frequencies below 300 Hz.
  • the attenuation of traffic noise by means of the valve constructions known according to the known technology is difficult, even with the best valves an attenuation of only approx. 36 dB was achieved.
  • the test report shows that attenuation of at least 45 dB can easily be achieved by means of the valve according to the invention, which means a noticeable improvement in the technical level.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Check Valves (AREA)
EP19970660040 1996-04-12 1997-04-14 Clapet de remplacement d'air Expired - Lifetime EP0801275B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI961642 1996-04-12
FI961642A FI101175B1 (fi) 1996-04-12 1996-04-12 Korvausilmaventtiili

Publications (3)

Publication Number Publication Date
EP0801275A2 true EP0801275A2 (fr) 1997-10-15
EP0801275A3 EP0801275A3 (fr) 2001-04-18
EP0801275B1 EP0801275B1 (fr) 2004-07-07

Family

ID=8545841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970660040 Expired - Lifetime EP0801275B1 (fr) 1996-04-12 1997-04-14 Clapet de remplacement d'air

Country Status (3)

Country Link
EP (1) EP0801275B1 (fr)
DE (1) DE59711760D1 (fr)
FI (1) FI101175B1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1445415A1 (fr) * 2003-01-20 2004-08-11 Tapio Tarpio Dispositif de ventilation
EP1959210A1 (fr) 2007-02-19 2008-08-20 Dir-Air Oy Appareil de protection de reflux pour appareil ventilation
EP2264376A1 (fr) 2009-06-18 2010-12-22 Dir-Air Oy Ventilateur avec filtre et soupape de retenue pour le remplacement de l'air dans une pièce
CN104234594A (zh) * 2014-08-19 2014-12-24 李伯华 通风窗
WO2015033215A1 (fr) * 2013-09-06 2015-03-12 Zehnder Group International Ag Amortisseur de son pour unité de ventilation à récupération de chaleur
DE102017001976A1 (de) * 2017-02-28 2018-08-30 Frank Paulig Einkanaliges Wärmetauscher-Modul zum Ein- bzw. Anbau an Rahmen von Fenstern und Türen mit dem Ziel einer Dauerlüftung unter Energieeinsparung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050364A (en) 1975-02-12 1977-09-27 Gretsch-Unitas Gmbh Baubeschlagfabrik Ventilating device
FI56880B (fi) 1974-07-19 1979-12-31 Bierlich J H Ventilator
GB2087069A (en) 1980-08-07 1982-05-19 Conforglace Sa Glazed panel incorporating a ventilator
FI96442B (fi) 1993-10-26 1996-03-15 Tarkiainen Markku Ulkoilmaventtiili

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398169A1 (fr) * 1977-07-21 1979-02-16 Balliman Glaces Verres Boite d'entree d'air adaptable sur une fenetre equipee d'un survitrage ou d'un double vitrage
FR2623239B1 (fr) * 1987-11-13 1991-06-28 Barbarin Laurent Bouche d'entree d'air autoreglable a isolation acoustique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI56880B (fi) 1974-07-19 1979-12-31 Bierlich J H Ventilator
US4050364A (en) 1975-02-12 1977-09-27 Gretsch-Unitas Gmbh Baubeschlagfabrik Ventilating device
GB2087069A (en) 1980-08-07 1982-05-19 Conforglace Sa Glazed panel incorporating a ventilator
FI96442B (fi) 1993-10-26 1996-03-15 Tarkiainen Markku Ulkoilmaventtiili

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1445415A1 (fr) * 2003-01-20 2004-08-11 Tapio Tarpio Dispositif de ventilation
EP1959210A1 (fr) 2007-02-19 2008-08-20 Dir-Air Oy Appareil de protection de reflux pour appareil ventilation
EP1988341A1 (fr) 2007-02-19 2008-11-05 Dir-Air Oy Appareil de protection de reflux
EP2264376A1 (fr) 2009-06-18 2010-12-22 Dir-Air Oy Ventilateur avec filtre et soupape de retenue pour le remplacement de l'air dans une pièce
WO2015033215A1 (fr) * 2013-09-06 2015-03-12 Zehnder Group International Ag Amortisseur de son pour unité de ventilation à récupération de chaleur
EP3249313A1 (fr) * 2013-09-06 2017-11-29 Zehnder Group International AG Silencieux pour unité de ventilation à récupération de chaleur
CN104234594A (zh) * 2014-08-19 2014-12-24 李伯华 通风窗
CN104234594B (zh) * 2014-08-19 2018-04-27 李伯华 通风窗
DE102017001976A1 (de) * 2017-02-28 2018-08-30 Frank Paulig Einkanaliges Wärmetauscher-Modul zum Ein- bzw. Anbau an Rahmen von Fenstern und Türen mit dem Ziel einer Dauerlüftung unter Energieeinsparung
DE102017001976B4 (de) * 2017-02-28 2021-03-11 Frank Paulig Wärmetauscheranordnung in einem Fenster- oder Tür-Rahmen oder in einem Rahmen eines Fensterflügels 

Also Published As

Publication number Publication date
FI101175B (fi) 1998-04-30
FI961642A0 (fi) 1996-04-12
FI961642A (fi) 1997-10-13
DE59711760D1 (de) 2004-08-12
EP0801275B1 (fr) 2004-07-07
FI101175B1 (fi) 1998-04-30
EP0801275A3 (fr) 2001-04-18

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