EP0240977B1 - Lüftungseinrichtung für bedarfsorientierten Luftaustausch - Google Patents

Lüftungseinrichtung für bedarfsorientierten Luftaustausch Download PDF

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Publication number
EP0240977B1
EP0240977B1 EP87105088A EP87105088A EP0240977B1 EP 0240977 B1 EP0240977 B1 EP 0240977B1 EP 87105088 A EP87105088 A EP 87105088A EP 87105088 A EP87105088 A EP 87105088A EP 0240977 B1 EP0240977 B1 EP 0240977B1
Authority
EP
European Patent Office
Prior art keywords
air
humidity
aeration system
room
ventilator
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.)
Expired - Lifetime
Application number
EP87105088A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0240977A3 (en
EP0240977A2 (de
Inventor
Hans Dipl.-Ing. Erhorn
Rolf Dipl.-Ing. Stricker
Michael Dipl.-Ing. Szerman
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.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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
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Application filed by Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Priority to AT87105088T priority Critical patent/ATE54026T1/de
Publication of EP0240977A2 publication Critical patent/EP0240977A2/de
Publication of EP0240977A3 publication Critical patent/EP0240977A3/de
Application granted granted Critical
Publication of EP0240977B1 publication Critical patent/EP0240977B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24F13/08—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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity

Definitions

  • Water vapor which is produced in a room sealed in this way by the people in it and, in addition, by plants as well as by water evaporation, water vapor-separating devices, devices and the like, increases the air humidity in the room, which is disadvantageous for the components enclosing the room can affect and adversely affects the indoor climate, ie through a temporary, thorough ventilation with intensive air exchange between indoor and outdoor air, the air humidity and possibly also the air temperature can be normalized again.
  • this type of ventilation can be the cause of an unfavorable heat balance, because the measure of the ventilation effect is usually the subjective feeling of the person doing the ventilation, which often leads to an unnecessarily long ventilation period with corresponding heat loss.
  • DE-A 2 730 417 mentions the measurement of the air humidity for the measurement of the outside air rate as the state of knowledge for practical use in agriculture.
  • the measuring devices mentioned there then in turn act on a control device which regulates the outside air rate of the air conditioning system.
  • Such devices are also particularly unsuitable for retrofitting in living rooms.
  • the invention is based on a ventilation device for the demand-oriented exchange of air in a room with the outside air by means of a ventilation element having a changeable through opening for the air change. It is based on the task of creating such a device that enables an objective, optimal ventilation control with simple means and without the supply of auxiliary energy, while keeping the heat losses in the room low.
  • the object is achieved in that for the control of the air exchange a sensor reacting to the humidity of the room air is provided, which is designed as a mechanical actuator for continuously changing opening and closing of the passage opening depending on the room air humidity - or as a valve element itself.
  • the invention is based on the principle that a substantial simplification of the control of the demand-oriented air exchange can be brought about if a sensor reacting to the humidity of the ambient air does not act via an auxiliary motor, but is designed so that it itself is designed as an actuator or as a valve closure element .
  • the size of the actuating energy in such a ventilation element actuated directly by a sensor is not very large.
  • the ventilation elements is also advantageous to design the ventilation elements as low-friction and low-inertia roller valves, the hollow cylinders of which can be rotated as adjusting elements by a hygrophilic fiber or a bimetal spiral.
  • a vertical flat slide valve may be more appropriate.
  • a band of hygrophilic parallel fibers is provided as a moisture sensor. It is reset by the slider's own weight.
  • the ventilation device with two ventilation elements is suitable for separate and simultaneous control of air temperature and humidity in a room.
  • a further development of the invention is particularly advantageous, in which the size of the opening cross-section is regulated by a combination of roller valves or sliders depending on the humidity of the inside and the temperature of the outside air in such a way that the dew point temperature of the inside air is always lower than the lowest surface temperature of the Space enclosing areas.
  • the ventilation device shown in the figures (1a, 1b, 1c and 2a, 2b, 2c) comprises two roller valves 5a and 3b, respectively, in a common housing 3 about their separate axes, 14a and 14b. are rotatably arranged.
  • Each roller valve essentially consists of a hollow cylinder, 1a or 1b, with axially parallel cutouts 2i and 2a, which is accommodated in a coaxial chamber, 31 or 32, housing 3.
  • the chambers for housing the hollow cylinders are provided with cutouts, ventilation slots, 4i and 4a, which open to the room to be ventilated or to the outside air.
  • the housing 3 forms a component which is to be installed in window frames or other facade areas.
  • the roller valve 5a which serves to regulate the temperature, is actuated by the non-positively connected spiral spring 11 made of bimetal according to the principle of a metal thermometer, depending on the temperature of the air, through the ventilation slots 4i and 4a and through the cylinder cutouts 2i and 2a, which are assigned to the roller valve 5a , strokes.
  • the intensity of the air change between the interior and outside air depends on the cross section of the free opening which is released for the air passing through through the roller valve 5a; it is dependent on the air temperature via the bimetal spring 11 and is determined by the covering parts of the axially parallel cutouts 2i and 2a of the hollow cylinder 1a and the ventilation slots 4i and 4a, which are assigned to the roller valve 5a.
  • the spiral spring 11 provides both the actuating and the restoring force for the roller valve 5a.
  • other temperature springs and bimetals as well as hydraulically operating temperature sensors with liquid, gel or wax filling can also be used as temperature-dependent regulating elements.
  • the roller valve 5a is to be protected against solar radiation and other heat influences which are not directly dependent on the air temperature and which would distort its function.
  • the roller valve 6b which is actuated by the regulating element 12 as a moisture-sensitive sensor, is intended for regulating the air humidity in the room to be ventilated.
  • fibers or equivalent structures come into consideration which consist of natural or synthetic hair or of natural or synthetic textile materials and / or are provided with coatings and which are overall hygrophilic, capable of desorption or absorption and long-term reversible. 1c and 2c, such a sensor is shown as a fiber 12 extending several times over the length of the housing 3.
  • the free end of the fiber 12 is attached to the housing 3 with a spring 15, which gives the fiber a permanent prestress.
  • the fiber 12 is then guided several times along the housing 3 via deflection rollers 16 in order to obtain a multiple change in length when the air humidity changes.
  • the fiber 12 is attached to a wicker wheel 17 connected to the axis 14b of the roller valve 5b.
  • the moisture-dependent changes in length of the fiber 12 cause corresponding rotations of the roller valve 5b; the fiber 12 provides the actuating force, while the required restoring force is introduced by a spiral spring 13 connected to the winding wheel 17 or by a counter-regulating element (not shown here).
  • FIGS. 1d, 1e, 1f and 2a, 2b and 2d differs from the one described above in that instead of the roller valve 5a regulating the air humidity, a slide 6a is provided with the moisture-sensitive sensor 12, which is equipped with a moisture sensor 19 interacts in the form of a band of many parallel, hygrophilic fibers.
  • the slide 6a is guided vertically in the housing part 3a by molded strips 18.
  • a thin rope or wire 20 engages, which via a deflection roller 16 to the egg NEN end of the sliver 19 stiffened with crosspieces 21 leads.
  • the other end of the band 19 is connected by a wire 22 to a holder 23 attached to the housing 3.
  • the slide arrangement described above does require larger actuating forces than the roller valve. But it has the advantage that it is less disturbed by strong winds. Rather, the pressure of the wind can press the slide against the guide 18 inwards and thereby improve a seal. There is also no need for a return spring, since the slider keeps the band 19 taut due to its own weight.
  • closure elements such as flaps or grilles, can also be used as ventilation elements.
  • the ventilation device When using the ventilation device for the simultaneous regulation of air temperature and humidity in a room to be ventilated, the following cases should be considered, from which the relationship to be specified for the ventilation device results, according to which the total cross section of the openings between the indoor and outdoor air is to be regulated.
  • the ventilation device according to the invention is now characterized as a device for basic and demand ventilation.
  • the roller valve 5a At high outside air temperatures, the roller valve 5a is fully open.
  • the roller valve 5b supports the air exchange only when there are high internal moisture loads.
  • overheating effects in strong sunlight are reduced, as a result of which the ventilation device according to the invention leads to a more comfortable room climate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Ventilation (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Air Humidification (AREA)
EP87105088A 1986-04-08 1987-04-06 Lüftungseinrichtung für bedarfsorientierten Luftaustausch Expired - Lifetime EP0240977B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87105088T ATE54026T1 (de) 1986-04-08 1987-04-06 Lueftungseinrichtung fuer bedarfsorientierten luftaustausch.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3611709 1986-04-08
DE19863611709 DE3611709A1 (de) 1986-04-08 1986-04-08 Lueftungseinrichtung fuer bedarfsorientierten luftaustausch

Publications (3)

Publication Number Publication Date
EP0240977A2 EP0240977A2 (de) 1987-10-14
EP0240977A3 EP0240977A3 (en) 1988-08-24
EP0240977B1 true EP0240977B1 (de) 1990-06-20

Family

ID=6298179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105088A Expired - Lifetime EP0240977B1 (de) 1986-04-08 1987-04-06 Lüftungseinrichtung für bedarfsorientierten Luftaustausch

Country Status (3)

Country Link
EP (1) EP0240977B1 (enrdf_load_stackoverflow)
AT (1) ATE54026T1 (enrdf_load_stackoverflow)
DE (2) DE3611709A1 (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05196335A (ja) * 1991-01-15 1993-08-06 Thermo King Corp 冷蔵温度制御システム
FR2708992B1 (fr) * 1993-08-10 1995-11-24 Cerga Procédé et dispositif de réglage de la section d'une entrée d'air de ventilation dans un local.
GB2292454B (en) * 1994-08-18 1998-12-09 Titon Hardware Ventilator
DE19727318A1 (de) * 1997-06-27 1999-01-07 Guenter Dipl Ing Waldow Einrichtung zur Schwitzwasservermeidung in bewohnbaren Gebäuden
GB2359618A (en) * 2000-02-22 2001-08-29 Geoff Smith Automatic portable vent responding to temperature and/or humidity changes
FR2817327B1 (fr) * 2000-11-24 2003-01-17 Anjos Dispositif de commande du degre d'ouverture d'une entree d'air, et entree d'air en comportant application
DE10110383A1 (de) * 2001-03-03 2002-09-12 Hilmar Niklaus Lüftungsvorrichtung für hermetisch abgeschlossene Räume
DE10358472B4 (de) * 2003-12-08 2011-02-10 Maico Elektroapparate-Fabrik Gmbh Lüftungsvorrichtung zum Anschluss einer Abluftleitung sowie Zentrallüftungsvorrichtung
DE102009009109B3 (de) * 2009-02-16 2010-10-07 Howatherm-Klimatechnik Gmbh Verfahren zur Belüftung eines Raumes
FR2958730B1 (fr) * 2010-04-12 2012-06-15 Somfy Sas Entree d'air hygroreglable communicante
DE102014104063A1 (de) * 2014-03-25 2015-10-01 Maco Technologie Gmbh Lüftungseinrichtung
DE102015219302A1 (de) * 2015-10-06 2017-04-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Lüftungsvorrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE717397C (de) * 1937-09-19 1942-02-13 Askania Werke Ag Verfahren zur Luftbefeuchtung gasbeheizter Raeume
FR1539936A (fr) * 1967-08-10 1968-09-20 Lagarde Ets Joseph Nouveau procédé pour effectuer la régulation de l'hygrométrie d'une enceinte et nouveau dispositif pour la mise en oeuvre de ce procédé
SE335790B (enrdf_load_stackoverflow) * 1968-12-20 1971-06-07 Husqvarna Vapenfabriks Ab
CH612852A5 (en) * 1976-07-29 1979-08-31 Luwa Ag Automatic fire protection shut-off member for ventilating ducts, in particular of shelters
DE2730417A1 (de) * 1977-07-06 1979-01-25 Rimu Lueftungstechnik Philipp Verfahren und steuergeraet zur regelung der aussenluftrate bei klimaanlagen in staellen
DE2923734C2 (de) * 1979-06-12 1982-09-02 Westfälisches Metallwerk Franz Schneider, 3492 Brakel Lüftungsvorrichtung zum Einbau in Fenster- oder Türrahmen

Also Published As

Publication number Publication date
DE3763338D1 (de) 1990-07-26
EP0240977A3 (en) 1988-08-24
DE3611709C2 (enrdf_load_stackoverflow) 1990-02-08
ATE54026T1 (de) 1990-07-15
DE3611709A1 (de) 1987-10-15
EP0240977A2 (de) 1987-10-14

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