WO2006042425A1 - Ventilation system and process for operating the same - Google Patents
Ventilation system and process for operating the same Download PDFInfo
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- WO2006042425A1 WO2006042425A1 PCT/CH2004/000636 CH2004000636W WO2006042425A1 WO 2006042425 A1 WO2006042425 A1 WO 2006042425A1 CH 2004000636 W CH2004000636 W CH 2004000636W WO 2006042425 A1 WO2006042425 A1 WO 2006042425A1
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- ventilation device
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Classifications
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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
- 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
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
- F28D7/1653—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
- F28D7/1661—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B7/10—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses by special construction of the frame members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Definitions
- the invention relates to a ventilation device according to the preamble of claim 1.
- Such ventilation devices make it possible to replace exhaust air from a closed space by supply air supplied from the outside, which exchanges heat with the exhaust air.
- it relates to a method for operating a ventilation device according to the invention.
- Ventilation devices which include a countercurrent heat exchanger.
- EP 1 308 678 A1 a e.g. in a window-mounted generic ventilation device known in which in a cuboid housing a double channel, which consists of a supply air duct and with the same thermally tightly coupled exhaust duct, is guided serpentine.
- the device is very space-saving and can easily be retrofitted.
- the flow is essentially turbulent and the efficiency is relatively high.
- the length of the double channel can also be easily adapted to the requirements that are placed on the efficiency of the ventilation device.
- a ventilation device which is integrated in a window frame.
- the supply air duct and the exhaust air duct are each almost completely around the window, over a part of the circumference as a double channel, which is deflected at two corners of the window frame in each case by 90 °.
- This arrangement requires a lot of space and is practically only in the form described, so with integration into one
- Window frame or the like used.
- the length of the double channel and thus the degree of achievable heat exchange is essentially determined by the dimensions of the window frame.
- the flow should be relatively less turbulent, so that the heat transfer, at least if not taken additional measures, e.g. Heat exchanger fins are provided, rather low because of the formation of flow layers.
- the double channel extends only over one side of the window frame.
- the heat transfer should remain moderately moderate despite heat exchanger fins or concentric guidance of the supply air duct and the exhaust duct.
- a ventilation device which is also e.g. can be installed in a spar of a window frame.
- supply air duct and exhaust air duct are divided into straight sub-ducts separated by slats, such that supply and exhaust air ducts alternate. Therefore, the structure of the device is relatively complex. The more numerous and narrower the subchannels are in terms of effective heat transfer, the higher the flow resistance.
- the invention is based on the object to improve the efficiency of known generic ventilation equipment. This object is solved by the features in the characterizing part of claim 1. Claim 18 describes an advantageous mode of operation of the inventive ventilation device.
- the ventilation device according to the invention can be made compact and relatively small
- FIG. 1 is a perspective view of the inventive air cooling element obliquely from above with the cover removed, 2 shows a horizontal longitudinal section through the inventive ventilation element of FIG. 1, corresponding to II-II in Fig. 3 and
- FIG. 3 shows a cross section through the inventive ventilation element along III-III in Fig. 2nd
- the ventilation device comprises a cuboid housing with a bottom 1, a ceiling 2, side walls 3a, b and end walls 4a, b.
- the interior of the housing is further divided by two intermediate walls 5, 6 parallel to the end walls 4a, b.
- Between the first intermediate wall 5 and the end wall 4a is a short inlet chamber 7, which is connected by a narrow rectangular air inlet 8 with the outside space.
- In the inlet chamber 8 are parallel to the end wall 4b as turbulence generating internals
- Baffles 9 installed, which each extend over a portion of the cross section. Between the second intermediate wall 6 and the end wall 4a opposite the end wall 4b is a short outlet chamber 10, which is connected by a rectangular Zu Kunststoffauslass 11 in the side wall 3a with the space to be ventilated.
- first partition 5 and the second partition 6 Between the first partition 5 and the second partition 6 is a longer cavity 12 of rectangular cross-section. Laterally spaced parallel tubes 13, which connect the inlet chamber 8 with the outlet chamber 10 are guided by the first partition 5, run, distributed approximately uniformly over the cross section, in the longitudinal direction through the cavity 12 and penetrate the second partition wall 6. On the Inlet chamber 8 side facing away from the first partition 5 a Insulating layer, so that the inlet chamber 8 is thermally insulated from the cavity 12.
- the side wall 3b also has an insulation layer on the inside, which thermally insulates the inlet chamber 8, the cavity 12 and the outlet chamber 10 from the outside space.
- the side wall 3a has an insulation layer inside, so that the inlet chamber 8 is also thermally insulated from the space to be ventilated.
- a partition wall 14 is arranged, which extends from the first partition wall 5 against the second partition wall 6, such that there remains a rectangular passage 15 to the cavity 12 free.
- the side wall 3a is pierced by a rectangular exhaust air inlet 16.
- the opposite side wall 3b, also after the first intermediate wall 5, is penetrated by a rectangular exhaust outlet 17, in which a fan 18 is mounted.
- the cavity 12 forms with the tubes 13 a countercurrent heat exchanger with an exchange section of the
- Supply air inlet 8 with the supply air outlet 11 connecting supply air channel, which is formed by the space enclosed by the tubes 13 space, while the remaining part of the cavity 12 an exchange portion of the exhaust air inlet 16 to the exhaust outlet 17 connecting
- Exhaust duct forms The two exchange sections are through the tubes 13 in close heat-conducting connection.
- the area lying between the side wall 3a and the partition wall 14 forms a connecting the exhaust air inlet 16 with the exchange portion of the exhaust duct
- the supply line section 19 is connected to the cavity 12 by a plurality of - in the example three - longitudinally offset short-circuit connections. They are formed by passages formed as narrow slots 20a, b, c in the partition 14. By projections on the partition wall 14, constrictions are respectively applied immediately in front of the slots 20b, c, so that the supply line section 19 widens directly at the slots 20b, c. At the slot 20a, the supply line section 19 expands as well, since the partition wall 14 to this passage a the
- the bottom 1, the lid 2, the side walls 3a, b, the end walls 4a, b, the intermediate walls 5, 6, the baffles 9 and the partition 14 come wood, metal, plastic, pressboard and the like. in question, wherein the insulating layers of foam, e.g. Polyurethane foam can exist.
- the tubes 13 must be made of good heat conducting material. Here are metals such as aluminum, steel or copper.
- a part of the exhaust air flow remains until the passage 15, where it is deflected by 180 ° and passes into the cavity 12, in the supply line section 19, where it is thermally insulated from the exchange section of the supply air duct.
- Other portions thereof are branched off from the supply portion 19 upstream of the passage 15 through the slits 20a, b, c, and further downstream into the exhaust air flow in the cavity 12, i. the replacement section of the exhaust duct. Therefore, parts of the cavity 12 are bridged by the slits 20a, b, c, with the point of entry of the short-circuit connection being located further downstream in the cavity 12, the further upstream their branching point lies in the feed line section 19.
- the bridged portion is relatively short in the case of the slot 20c, but is significantly more than half the length of the cavity 12 in the slot 20a.
- the slots 20a, b, c are dimensioned such that they each branch off about 10-15% of the total exhaust air flow, in total the proportion of the exhaust air flow, which thus bypasses a smaller or larger part of the replacement section of the exhaust air duct, is approximately 25%. 50%. It has been found that this short-circuiting of parts of the replacement section by parts of the exhaust air stream improves the efficiency of the ventilation device in a surprising manner.
- Various modifications of the described ventilation device are possible. Among other things, the roles of the exhaust duct and the supply air duct can be substantially reversed. It is also possible to also provide a fan in the supply air duct. For the purpose of avoiding noise as far as possible in the room to be ventilated, fans should possibly always be arranged on the end of the exhaust air duct and possibly the supply air duct facing the outer space.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- General Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Duct Arrangements (AREA)
Abstract
Description
B E S C H R E I B U N G DESCRIPTION
LÜFTUNGSEINRICHTUNG UND VERFAHREN ZU IHREM BETRIEBVENTILATION DEVICE AND METHOD FOR THEIR OPERATION
Technisches GebietTechnical area
Die Erfindung betrifft eine Lüftungseinrichtung gemäss dem Oberbegriff des Anspruchs 1. Derartige Lüftungseinrichtungen gestatten es, Abluft aus einem geschlossenen Raum durch von aussen zugeführte Zuluft, die dabei mit der Abluft Wärme austauscht, zu ersetzen. Ausserdem betrifft sie ein Verfahren zum Betrieb einer erfindungsgemässen Lüftungseinrichtung.The invention relates to a ventilation device according to the preamble of claim 1. Such ventilation devices make it possible to replace exhaust air from a closed space by supply air supplied from the outside, which exchanges heat with the exhaust air. In addition, it relates to a method for operating a ventilation device according to the invention.
Stand der TechnikState of the art
Es sind schon viele Lüftungseinrichtungen beschrieben worden, welche einen Gegenstrom-Wärmetauscher umfassen. So ist aus der EP 1 308 678 Al eine z.B. in ein Fenster einbaubare gattungsgemässe Lüftungseinrichtung bekannt, bei welcher in einem quaderförmigen Gehäuse ein Doppelkanal, der aus einem Zuluftkanal und einem mit demselben thermisch eng gekoppelten Abluftkanal besteht, serpentinenförmig geführt ist. Die Einrichtung ist sehr platzsparend und kann leicht auch nachträglich eingebaut werden. Durch die scharfenMany ventilation devices have been described which include a countercurrent heat exchanger. Thus, from EP 1 308 678 A1 a e.g. in a window-mounted generic ventilation device known in which in a cuboid housing a double channel, which consists of a supply air duct and with the same thermally tightly coupled exhaust duct, is guided serpentine. The device is very space-saving and can easily be retrofitted. By the sharp
Umlenkungen ist die Strömung im wesentlichen turbulent und der Wirkungsgrad verhältnismässig hoch. Die Länge des Doppelkanals kann ausserdem leicht an die Anforderungen angepasst werden, die hinsichtlich des Wirkungsgrades an die Lüftungseinrichtung gestellt werden.Deflections, the flow is essentially turbulent and the efficiency is relatively high. The length of the double channel can also be easily adapted to the requirements that are placed on the efficiency of the ventilation device.
Aus der DE 33 47 028 Al ist eine Lüftungseinrichtung bekannt, welche in einen Fensterrahmen integriert ist. Der Zuluftkanal und der Abluftkanal sind jeweils fast vollständig um das Fenster herumgeführt, über einen Teil des Umfangs als Doppelkanal, der an zwei Ecken des Fensterrahmens jeweils um 90° umgelenkt wird. Diese Anordnung benötigt viel Platz und ist praktisch nur in der beschriebenen Form, also mit Integration in einenFrom DE 33 47 028 Al a ventilation device is known, which is integrated in a window frame. The supply air duct and the exhaust air duct are each almost completely around the window, over a part of the circumference as a double channel, which is deflected at two corners of the window frame in each case by 90 °. This arrangement requires a lot of space and is practically only in the form described, so with integration into one
Fensterrahmen o.dgl. einsetzbar. Die Länge des Doppelkanals und damit der Grad des erreichbaren Wärmeaustausche ist wesentlich durch die Abmessungen des Fensterrahmens bestimmt. Die Strömung dürfte verhältnismässig wenig turbulent sein, so dass die Wärmeübertragung, jedenfalls wenn nicht zusätzliche Massnahmen getroffen, z.B. Wärmetauscherrippen vorgesehen werden, wegen der Bildung von Strömungsschichten eher gering bleibt .Window frame or the like. used. The length of the double channel and thus the degree of achievable heat exchange is essentially determined by the dimensions of the window frame. The flow should be relatively less turbulent, so that the heat transfer, at least if not taken additional measures, e.g. Heat exchanger fins are provided, rather low because of the formation of flow layers.
Bei einer ähnlichen Lüftungseinrichtung gemäss DE 32 30 279 Al erstreckt sich der Doppelkanal nur über eine Seite des Fensterrahmens. Hier dürfte die Wärmeübertragung trotz Wärmetauscherrippen oder konzentrischer Führung des Zuluftkanals und des Abluftkanals verhältsmässig geringfügig bleiben.In a similar ventilation device according to DE 32 30 279 Al, the double channel extends only over one side of the window frame. Here, the heat transfer should remain moderately moderate despite heat exchanger fins or concentric guidance of the supply air duct and the exhaust duct.
In DE 34 26 778 Al ist eine Lüftungseinrichtung beschrieben, die ebenfalls z.B. in einen Holm eines Fensterrahmens eingebaut werden kann. Hier sind Zuluftkanal und Abluftkanal in durch Lamellen getrennte gerade Teilkanäle aufgeteilt, derart, dass sich Zuluft- und Abluftteilkanäle abwechseln. Daher ist der Aufbau der Vorrichtung verhältnismässig komplex. Je zahlreicher und schmäler die Teilkanäle im Sinne wirksamer Wärmeübertragung sind, desto höher ist der Strömungswiderstand.In DE 34 26 778 Al a ventilation device is described, which is also e.g. can be installed in a spar of a window frame. Here, supply air duct and exhaust air duct are divided into straight sub-ducts separated by slats, such that supply and exhaust air ducts alternate. Therefore, the structure of the device is relatively complex. The more numerous and narrower the subchannels are in terms of effective heat transfer, the higher the flow resistance.
Aus der WO 96/12 145 Al ist eine grundsätzlich ähnliche Lüftungseinrichtung bekannt, bei welcher die Teilkanäle konzentrisch angeordnet und schraubenlinienförmig ausgebildet sind. Diese Lüftungseinrichtung dürfte die gleichen Nachteile haben wie die zuletzt genannte. Vor allem ist der Aufbau sehr komplex und die Herstellung dürfte entsprechend teuer sein.From WO 96/12 145 Al a basically similar ventilation device is known, in which the sub-channels arranged concentrically and helically are formed. This ventilation device should have the same disadvantages as the latter. Above all, the structure is very complex and the production should be correspondingly expensive.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zu Grunde, den Wirkungsgrad bekannter gattungsgemässer Lüftungseinrichtungen zu verbessern. Diese Aufgabe wird durch die Merkmale im kennzeichnenden Teil des Anspruchs 1 gelöst. Anspruch 18 beschreibt eine vorteilhafte Betriebsweise der erfindungsgemässen Lüftungseinrichtung.The invention is based on the object to improve the efficiency of known generic ventilation equipment. This object is solved by the features in the characterizing part of claim 1. Claim 18 describes an advantageous mode of operation of the inventive ventilation device.
Es hat sich gezeigt, dass durch die erfindungsgemässen Massnahmen der Wirkungsgrad deutlich gesteigert wird. Zugleich kann die erfindungsgemässe Lüftungseinrichtung kompakt aufgebaut sein und verhältnismässig geringenIt has been shown that the efficiency is significantly increased by the inventive measures. At the same time, the ventilation device according to the invention can be made compact and relatively small
Strömungswiderstand aufweisen. Auch störende Lärmentwicklung kann sehr gering gehalten werden. Sie kann einfach aufgebaut und entsprechend kostengünstig herstellbar sein.Have flow resistance. Even annoying noise can be kept very low. It can be simple and inexpensive to produce accordingly.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Im folgenden wird die Erfindung anhand von Figuren, welche lediglich ein Ausführungsbeispiel darstellen, näher erläutert . Es zeigenIn the following the invention will be explained in more detail with reference to figures, which represent only one embodiment. Show it
Fig. 1 eine perspektivische Ansicht des erfindungsgemässen Luftkühlelements schräg von oben bei abgenommenem Deckel, Fig.2 einen waagrechten Längsschnitt durch das erfindungsgemässe Lüftungselement von Fig. 1, entsprechend II-II in Fig. 3 und1 is a perspective view of the inventive air cooling element obliquely from above with the cover removed, 2 shows a horizontal longitudinal section through the inventive ventilation element of FIG. 1, corresponding to II-II in Fig. 3 and
Fig. 3 einen Querschnitt durch das erfindungsgemässe Lüftungselement längs III-III in Fig. 2.3 shows a cross section through the inventive ventilation element along III-III in Fig. 2nd
Wege zur Ausführung der ErfindungWays to carry out the invention
Die Lüftungseinrichtung umfasst ein quaderförmiges Gehäuse mit einem Boden 1, einer Decke 2, Seitenwänden 3a,b und Stirnwänden 4a,b. Das Innere des Gehäuses ist durch zwei zu den Stirnwänden 4a,b parallele Zwischenwände 5, 6 weiter unterteilt. Zwischen der ersten Zwischenwand 5 und der Stirnwand 4a liegt eine kurze Einlasskammer 7, welche durch einen schmalen rechteckigen Zulufteinlass 8 mit dem Aussenraum verbunden ist. In der Einlasskammer 8 sind als turbulenzerzeugende Einbauten zur Stirnwand 4b paralleleThe ventilation device comprises a cuboid housing with a bottom 1, a ceiling 2, side walls 3a, b and end walls 4a, b. The interior of the housing is further divided by two intermediate walls 5, 6 parallel to the end walls 4a, b. Between the first intermediate wall 5 and the end wall 4a is a short inlet chamber 7, which is connected by a narrow rectangular air inlet 8 with the outside space. In the inlet chamber 8 are parallel to the end wall 4b as turbulence generating internals
Umlenkwände 9 eingebaut, welche sich jeweils über einen Teil des Querschnitts erstrecken. Zwischen der zweiten Zwischenwand 6 und der der Stirnwand 4a gegenüberliegenden Stirnwand 4b liegt eine kurze Auslasskammer 10, welche durch einen rechteckigen Zuluftauslass 11 in der Seitenwand 3a mit dem zu lüftenden Raum verbunden ist.Baffles 9 installed, which each extend over a portion of the cross section. Between the second intermediate wall 6 and the end wall 4a opposite the end wall 4b is a short outlet chamber 10, which is connected by a rectangular Zuluftauslass 11 in the side wall 3a with the space to be ventilated.
Zwischen der ersten Zwischenwand 5 und der zweiten Zwischenwand 6 liegt ein längerer Hohlraum 12 rechteckigen Querschnitts. Seitlich voneinander beabstandete parallele Rohre 13, welche die Einlasskammer 8 mit der Auslasskammer 10 verbinden, sind durch die erste Zwischenwand 5 geführt, laufen, etwa gleichmässig über den Querschnitt verteilt, in Längsrichtung durch den Hohlraum 12 und durchdringen die zweite Zwischenwand 6. Auf der der Einlasskammer 8 abgewandten Seite weist die erste Zwischenwand 5 eine Isolationsschicht auf, so dass die Einlasskammer 8 vom Hohlraum 12 thermisch isoliert ist. Auch die Seitenwand 3b weist innen eine Isolationsschicht auf, welche die Einlasskammer 8, den Hohlraum 12 und die Auslasskammer 10 vom Aussenraum thermisch isoliert. Desgleichen weist in der Einlasskammer 8 die Seitenwand 3a innen eine Isolationsschicht auf, so dass die Einlasskammer 8 auch vom zu lüftenden Raum thermisch isoliert ist.Between the first partition 5 and the second partition 6 is a longer cavity 12 of rectangular cross-section. Laterally spaced parallel tubes 13, which connect the inlet chamber 8 with the outlet chamber 10 are guided by the first partition 5, run, distributed approximately uniformly over the cross section, in the longitudinal direction through the cavity 12 and penetrate the second partition wall 6. On the Inlet chamber 8 side facing away from the first partition 5 a Insulating layer, so that the inlet chamber 8 is thermally insulated from the cavity 12. The side wall 3b also has an insulation layer on the inside, which thermally insulates the inlet chamber 8, the cavity 12 and the outlet chamber 10 from the outside space. Likewise, in the inlet chamber 8, the side wall 3a has an insulation layer inside, so that the inlet chamber 8 is also thermally insulated from the space to be ventilated.
Parallel zur Seitenwand 3a ist eine Trennwand 14 angeordnet, welche sich von der ersten Zwischenwand 5 gegen die zweite Zwischenwand 6 erstreckt, derart, dass dort ein rechteckiger Durchgang 15 zum Hohlraum 12 freibleibt. Anschliessend an die erste Zwischenwand 5 ist die Seitenwand 3a von einem rechteckigen Ablufteinlass 16 durchbrochen. Die gegenüberliegende Seitenwand 3b ist, ebenfalls anschliessend an die erste Zwischenwand 5, von einem rechteckigen Abluftauslass 17 durchbrochen, in welchem ein Ventilator 18 angebracht ist.Parallel to the side wall 3a, a partition wall 14 is arranged, which extends from the first partition wall 5 against the second partition wall 6, such that there remains a rectangular passage 15 to the cavity 12 free. Subsequent to the first intermediate wall 5, the side wall 3a is pierced by a rectangular exhaust air inlet 16. The opposite side wall 3b, also after the first intermediate wall 5, is penetrated by a rectangular exhaust outlet 17, in which a fan 18 is mounted.
Der Hohlraum 12 bildet mit den Rohren 13 einen Gegenstrom- Wärmetauscher mit einem Austauschabschnitt eines denThe cavity 12 forms with the tubes 13 a countercurrent heat exchanger with an exchange section of the
Zulufteinlass 8 mit dem Zuluftauslass 11 verbindenenden Zuluftkanals, der durch den von den Rohren 13 umschlossenen Raum gebildet wird, während der verbleibende Teil des Hohlraums 12 einen Austauschabschnitt eines den Ablufteinlass 16 mit dem Abluftauslass 17 verbindendenSupply air inlet 8 with the supply air outlet 11 connecting supply air channel, which is formed by the space enclosed by the tubes 13 space, while the remaining part of the cavity 12 an exchange portion of the exhaust air inlet 16 to the exhaust outlet 17 connecting
Abluftkanals bildet. Die beiden Austauschabschnitte stehen durch die Rohre 13 hindurch in enger wärmeleitender Verbindung. Der zwischen der Seitenwand 3a und der Trennwand 14 liegende Bereich bildet einen den Ablufteinlass 16 mit dem Austauschabschnitt des Abluftkanals verbindendenExhaust duct forms. The two exchange sections are through the tubes 13 in close heat-conducting connection. The area lying between the side wall 3a and the partition wall 14 forms a connecting the exhaust air inlet 16 with the exchange portion of the exhaust duct
Zuleitungsabschnitt 19 des letzteren, der, gegengleich zum Austauschabschnitt geführt, bis zum Durchgang 15 reicht. Der Zuleitungsabschnitt 19 ist durch mehrere - im Beispiel drei - in Längsrichtung versetzte Kurzschlussverbindungen mit dem Hohlraum 12 verbunden. Sie werden von als schmale Schlitze 20a,b,c ausgebildeten Durchlässen in der Trennwand 14 gebildet. Durch Vorsprünge an der Trennwand 14 sind jeweils unmittelbar vor den Schlitzen 20b,c Verengungen angelegt, so dass sich der Zuleitungsabschnitt 19 unmittelbar an den Schlitzen 20b, c erweitert. Am Schlitz 20a erweitert sich der Zuleitungsabschnitt 19 ebenfalls, da die Trennwand 14 bis zu diesem Durchläse eine denLead portion 19 of the latter, which, compared to the exchange section out, until the passage 15 extends. The supply line section 19 is connected to the cavity 12 by a plurality of - in the example three - longitudinally offset short-circuit connections. They are formed by passages formed as narrow slots 20a, b, c in the partition 14. By projections on the partition wall 14, constrictions are respectively applied immediately in front of the slots 20b, c, so that the supply line section 19 widens directly at the slots 20b, c. At the slot 20a, the supply line section 19 expands as well, since the partition wall 14 to this passage a the
Zuleitungsabschnitt 19 vom Hohlraum 11 und damit vom Austauschabschnitt des Abluftkanals thermisch isolierende Isolationsschicht umfasst und daher dicker ist. Zwischen den Schlitzen 20a,b,c und am Durchgang 15 weist der Zuleitungsabschnitt 19 weitere Verengungen auf, die durch Vorsprünge an der Seitenwand 3a gebildet werden.Supply line section 19 from the cavity 11 and thus from the exchange section of the exhaust duct thermally insulating insulating layer and therefore is thicker. Between the slots 20a, b, c and at the passage 15, the lead portion 19 has further constrictions formed by protrusions on the side wall 3a.
Als Materialien für den Boden 1, den Deckel 2, die Seitenwände 3a,b, die Stirnwände 4a,b, die Zwischenwände 5, 6, die Umlenkwände 9 und die Trennwand 14 kommen Holz, Metall, Kunststoff, Pressspanplatten u.dgl. in Frage, wobei die Isolationsschichten aus Schaumstoff, z.B. Polyurethanschaumstoff bestehen können. Die Rohre 13 müssen aus gut wärmeleitendem Material bestehen. Hier bieten sich Metalle wie Aluminium, Stahl oder auch Kupfer an.As materials for the bottom 1, the lid 2, the side walls 3a, b, the end walls 4a, b, the intermediate walls 5, 6, the baffles 9 and the partition 14 come wood, metal, plastic, pressboard and the like. in question, wherein the insulating layers of foam, e.g. Polyurethane foam can exist. The tubes 13 must be made of good heat conducting material. Here are metals such as aluminum, steel or copper.
Der Abluftström ist in den Figuren durch einen einfachenThe Abluftström is in the figures by a simple
Pfeil dargestellt, der Zuluftstrom durch einen Doppelpfeil. Durch den Ventilator 18 wird Abluft aus dem zu lüftenden Raum durch den Abluftkanal gesaugt und ausgestossen. Durch die Anordnung des Ventilators 18 im Bereich des Abluftauslasses 17 wird Lärmbelastung des Raumes weitgehend vermieden. Die Abluft tritt durch den Ablufteinlass 16 in die Lüftungseinrichtung ein und fliesst durch den Zuleitungsabschnitt 19 und den Austauschabschnitt im Hohlraum 12 zum Abluftauslass 17. Durch den im zu lüftenden Raum erzeugten Unterdruck wird am Zulufteinlass 8 Zuluft angesaugt und durch den Zuluftkanal und den Zuluftauslass 11 in den Raum geleitet. Wegen Undichtigkeiten des Raumes ist der Zuluftstrom gewöhnlich geringer als der Abluftstrom.Arrow shown, the supply air flow through a double arrow. By the fan 18 exhaust air is sucked out of the room to be ventilated through the exhaust duct and ejected. The arrangement of the fan 18 in the region of the exhaust outlet 17 noise pollution of the room is largely avoided. The exhaust air enters through the exhaust air inlet 16 in the ventilation device and flows through the Supply line section 19 and the replacement section in the cavity 12 to the exhaust outlet 17. Due to the negative pressure generated in the space to be sucked air is supplied to the supply air inlet 8 and passed through the supply air duct and the Zuluftauslass 11 into the room. Due to leaks in the room, the supply air flow is usually lower than the exhaust air flow.
Ein Teil des Abluftstroms bleibt bis zum Durchgang 15, wo er um 180° umgelenkt wird und in den Hohlraum 12 übergeht, im Zuleitungsabschnitt 19, wo er vom Austauschabschnitt des Zuluftkanals thermisch isoliert ist. Andere Teile davon werden jedoch stromaufwärts des Durchgangs 15 durch die Schlitze 20a,b,c aus dem Zuleitungsabschnitt 19 abgezweigt und treten weiter stromabwärts in den Abluftstrom im Hohlraum 12, d.h. den Austauschabschnitt des Abluftkanals ein. Durch die Schlitze 20a,b,c werden daher Teile des Hohlraums 12 überbrückt, wobei die Eintrittsstelle der Kurzschlussverbindung umso weiter stromabwärts im Hohlraum 12 liegt, je weiter stromaufwärts ihre Abzweigstelle im Zuleitungsabschnitt 19 liegt. Der überbrückte Teil ist im Fall des Schlitzes 20c verhältnismässig kurz, beim Schlitz 20a beträgt er jedoch deutlich mehr als die Hälfte der Länge des Hohlraums 12.A part of the exhaust air flow remains until the passage 15, where it is deflected by 180 ° and passes into the cavity 12, in the supply line section 19, where it is thermally insulated from the exchange section of the supply air duct. Other portions thereof, however, are branched off from the supply portion 19 upstream of the passage 15 through the slits 20a, b, c, and further downstream into the exhaust air flow in the cavity 12, i. the replacement section of the exhaust duct. Therefore, parts of the cavity 12 are bridged by the slits 20a, b, c, with the point of entry of the short-circuit connection being located further downstream in the cavity 12, the further upstream their branching point lies in the feed line section 19. The bridged portion is relatively short in the case of the slot 20c, but is significantly more than half the length of the cavity 12 in the slot 20a.
Die Schlitze 20a,b,c sind so dimensioniert, dass sie jeweils etwa 10-15% des gesamten Abluftstroms abzweigen, insgesamt beträgt der Anteil des AbluftStroms, der auf diese Weise einen kleineren oder grosseren Teil des Austauschabschnitts des Abluftkanals umgeht, ca. 25-50%. Es hat sich gezeigt, dass dieses Kurzschliessen von Teilen des Austauschabschnittes durch Teile des Abluftstromes den Wirkungsgrad der Lüftungseinrichtung in überraschender Weise verbessert. Es sind verschiedene Abwandlungen der beschriebenen Lüftungseinrichtung möglich. U.a. können die Rollen des Abluftkanals und des Zuluftkanals im wesentlichen vertauscht sein. Es ist auch möglich, im Zuluftkanal ebenfalls einen Ventilator vorzusehen. Ventilatoren sollten zwecks möglichst weitgehender Vermeidung von Lärm im zu lüftenden Raum womöglich immer am dem Aussenraum zugewandten Ende des Abluft- und gegebenenfalls des Zuluftkanals angeordnet sein.The slots 20a, b, c are dimensioned such that they each branch off about 10-15% of the total exhaust air flow, in total the proportion of the exhaust air flow, which thus bypasses a smaller or larger part of the replacement section of the exhaust air duct, is approximately 25%. 50%. It has been found that this short-circuiting of parts of the replacement section by parts of the exhaust air stream improves the efficiency of the ventilation device in a surprising manner. Various modifications of the described ventilation device are possible. Among other things, the roles of the exhaust duct and the supply air duct can be substantially reversed. It is also possible to also provide a fan in the supply air duct. For the purpose of avoiding noise as far as possible in the room to be ventilated, fans should possibly always be arranged on the end of the exhaust air duct and possibly the supply air duct facing the outer space.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Boden1 floor
2 Deckel2 lids
3a,b Seitenwände3a, b sidewalls
4a,b Stirnwände4a, b end walls
5 erste Zwischenwand5 first partition
6 zweite Zwischenwand6 second partition
7 Einlasskammer7 inlet chamber
8 Zulufteinlass8 intake air inlet
9 Umlenkwände9 baffles
10 Auslasskammer10 outlet chamber
11 Zuluftauslass11 supply air outlet
12 Hohlraum12 cavity
13 Rohre13 tubes
14 Trennwand14 partition wall
15 Durchgang15 passage
16 Ablufteinlass16 exhaust air inlet
17 Abluftauslass17 exhaust outlet
18 Ventilator18 fans
19 Zuleitungsabschnitt19 supply section
20a,b,c Durchlässe 20a, b, c passages
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CH2004/000636 WO2006042425A1 (en) | 2004-10-22 | 2004-10-22 | Ventilation system and process for operating the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CH2004/000636 WO2006042425A1 (en) | 2004-10-22 | 2004-10-22 | Ventilation system and process for operating the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006042425A1 true WO2006042425A1 (en) | 2006-04-27 |
Family
ID=34958907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CH2004/000636 Ceased WO2006042425A1 (en) | 2004-10-22 | 2004-10-22 | Ventilation system and process for operating the same |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2006042425A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019179197A1 (en) * | 2018-03-19 | 2019-09-26 | 天津科技大学 | Modular phase-change energy storage heat exchanger |
| CN112399774A (en) * | 2019-08-16 | 2021-02-23 | 北京新能源汽车股份有限公司 | Heat exchange system and heat exchange control method of power conversion station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2842974A1 (en) * | 1978-10-02 | 1980-04-10 | Hermann Dieterichs | Plant for forced-flow air circulation in poultry rearing batteries - features polyethylene tubular film air feed ducts between which used air is discharged |
| DE3426778A1 (en) * | 1984-07-20 | 1985-05-02 | Werner G.K. 2000 Hamburg Lange | Device for the exchange of heat energy between air flows for recovery of ventilation heat |
| US4993484A (en) * | 1989-01-17 | 1991-02-19 | Kirkwood Community College Facilities Foundation | Air to air heat exchanger |
| EP0952409A2 (en) * | 1998-04-17 | 1999-10-27 | Karl-Heinz Happel | Counterflow heat exchanger |
| EP1308678A1 (en) * | 2001-11-01 | 2003-05-07 | Fensterfabrik Albisrieden Ag | Ventilation device |
-
2004
- 2004-10-22 WO PCT/CH2004/000636 patent/WO2006042425A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2842974A1 (en) * | 1978-10-02 | 1980-04-10 | Hermann Dieterichs | Plant for forced-flow air circulation in poultry rearing batteries - features polyethylene tubular film air feed ducts between which used air is discharged |
| DE3426778A1 (en) * | 1984-07-20 | 1985-05-02 | Werner G.K. 2000 Hamburg Lange | Device for the exchange of heat energy between air flows for recovery of ventilation heat |
| US4993484A (en) * | 1989-01-17 | 1991-02-19 | Kirkwood Community College Facilities Foundation | Air to air heat exchanger |
| EP0952409A2 (en) * | 1998-04-17 | 1999-10-27 | Karl-Heinz Happel | Counterflow heat exchanger |
| EP1308678A1 (en) * | 2001-11-01 | 2003-05-07 | Fensterfabrik Albisrieden Ag | Ventilation device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019179197A1 (en) * | 2018-03-19 | 2019-09-26 | 天津科技大学 | Modular phase-change energy storage heat exchanger |
| CN112399774A (en) * | 2019-08-16 | 2021-02-23 | 北京新能源汽车股份有限公司 | Heat exchange system and heat exchange control method of power conversion station |
| CN112399774B (en) * | 2019-08-16 | 2023-01-24 | 北京新能源汽车股份有限公司 | Heat exchange system and heat exchange control method of power conversion station |
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