WO2006042425A1 - Dispositif d'aeration et procede pour faire fonctionner ce dispositif d'aeration - Google Patents

Dispositif d'aeration et procede pour faire fonctionner ce dispositif d'aeration Download PDF

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Publication number
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
Authority
WO
WIPO (PCT)
Prior art keywords
ventilation device
inlet
outlet
cavity
section
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.)
Ceased
Application number
PCT/CH2004/000636
Other languages
German (de)
English (en)
Inventor
Bernhard Bühlmann
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.)
Fensterfabrik Albisrieden AG
Original Assignee
Fensterfabrik Albisrieden AG
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 Fensterfabrik Albisrieden AG filed Critical Fensterfabrik Albisrieden AG
Priority to PCT/CH2004/000636 priority Critical patent/WO2006042425A1/fr
Publication of WO2006042425A1 publication Critical patent/WO2006042425A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Duct Arrangements (AREA)

Abstract

Selon l'invention, une chambre d'admission (7) comportant une admission d'air frais (8) et une chambre de sortie (10) comportant une sortie d'air frais (11) sont reliées par des tuyaux (13) qui s'étendent dans la direction longitudinale à travers un espace creux (12) qui est relié à une admission d'air vicié (16) par l'intermédiaire d'une section de conduite d'amenée (19) s'étendant de manière diamétralement opposée, et qui comprend une sortie d'air vicié (17) comportant un ventilateur (18), au niveau de l'extrémité qui est adjacente à la chambre d'admission (7). L'espace creux (12) forme avec lesdits tuyaux (13) un échangeur thermique à contre-courant pour transférer de la chaleur entre l'air de sortie et l'air d'amenée. Une paroi de séparation (14) est disposée entre l'admission d'air vicié (16) et un passage (15) qui relie la section de conduite d'amenée (19), au niveau de l'extrémité de cette dernière qui est adjacente à la chambre de sortie (10), avec l'espace creux (12), et sépare la section de conduite d'amenée (19) et l'espace creux (12), ladite paroi de séparation comportant plusieurs orifices de passage (20a, 20b, 20c) qui sont décalés dans la direction d'écoulement et qui établissent des liaisons de type court-circuit pour court-circuiter une partie de l'espace creux (12), respectivement pour une partie du courant d'air vicié.
PCT/CH2004/000636 2004-10-22 2004-10-22 Dispositif d'aeration et procede pour faire fonctionner ce dispositif d'aeration Ceased WO2006042425A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CH2004/000636 WO2006042425A1 (fr) 2004-10-22 2004-10-22 Dispositif d'aeration et procede pour faire fonctionner ce dispositif d'aeration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2004/000636 WO2006042425A1 (fr) 2004-10-22 2004-10-22 Dispositif d'aeration et procede pour faire fonctionner ce dispositif d'aeration

Publications (1)

Publication Number Publication Date
WO2006042425A1 true WO2006042425A1 (fr) 2006-04-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2004/000636 Ceased WO2006042425A1 (fr) 2004-10-22 2004-10-22 Dispositif d'aeration et procede pour faire fonctionner ce dispositif d'aeration

Country Status (1)

Country Link
WO (1) WO2006042425A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019179197A1 (fr) * 2018-03-19 2019-09-26 天津科技大学 Échangeur de chaleur à stockage d'énergie et à changement de phase modulaire
CN112399774A (zh) * 2019-08-16 2021-02-23 北京新能源汽车股份有限公司 换电站的换热系统和换热控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2842974A1 (de) * 1978-10-02 1980-04-10 Hermann Dieterichs Vorrichtung fuer die klimatisierung von raeumen mit entsprechendem luftwechsel, insbesondere bei gefluegel-maststaellen
DE3426778A1 (de) * 1984-07-20 1985-05-02 Werner G.K. 2000 Hamburg Lange Vorrichtung zum austausch von waerme-energie zwischen luftstroemen zur rueckgewinnung von lueftungswaerme
US4993484A (en) * 1989-01-17 1991-02-19 Kirkwood Community College Facilities Foundation Air to air heat exchanger
EP0952409A2 (fr) * 1998-04-17 1999-10-27 Karl-Heinz Happel Echangeur de chaleur à contre-courant
EP1308678A1 (fr) * 2001-11-01 2003-05-07 Fensterfabrik Albisrieden Ag Dispositif de ventilation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2842974A1 (de) * 1978-10-02 1980-04-10 Hermann Dieterichs Vorrichtung fuer die klimatisierung von raeumen mit entsprechendem luftwechsel, insbesondere bei gefluegel-maststaellen
DE3426778A1 (de) * 1984-07-20 1985-05-02 Werner G.K. 2000 Hamburg Lange Vorrichtung zum austausch von waerme-energie zwischen luftstroemen zur rueckgewinnung von lueftungswaerme
US4993484A (en) * 1989-01-17 1991-02-19 Kirkwood Community College Facilities Foundation Air to air heat exchanger
EP0952409A2 (fr) * 1998-04-17 1999-10-27 Karl-Heinz Happel Echangeur de chaleur à contre-courant
EP1308678A1 (fr) * 2001-11-01 2003-05-07 Fensterfabrik Albisrieden Ag Dispositif de ventilation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019179197A1 (fr) * 2018-03-19 2019-09-26 天津科技大学 Échangeur de chaleur à stockage d'énergie et à changement de phase modulaire
CN112399774A (zh) * 2019-08-16 2021-02-23 北京新能源汽车股份有限公司 换电站的换热系统和换热控制方法
CN112399774B (zh) * 2019-08-16 2023-01-24 北京新能源汽车股份有限公司 换电站的换热系统和换热控制方法

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