WO2009098041A1 - Appareil de ventilation encastré dans le sol, et procédé pour climatiser une pièce - Google Patents

Appareil de ventilation encastré dans le sol, et procédé pour climatiser une pièce Download PDF

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Publication number
WO2009098041A1
WO2009098041A1 PCT/EP2009/000748 EP2009000748W WO2009098041A1 WO 2009098041 A1 WO2009098041 A1 WO 2009098041A1 EP 2009000748 W EP2009000748 W EP 2009000748W WO 2009098041 A1 WO2009098041 A1 WO 2009098041A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
convector
ventilation device
air flow
fan
Prior art date
Application number
PCT/EP2009/000748
Other languages
German (de)
English (en)
Inventor
Georg Pfeiffer
Original Assignee
Pluggit International B.V.
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 Pluggit International B.V. filed Critical Pluggit International B.V.
Publication of WO2009098041A1 publication Critical patent/WO2009098041A1/fr

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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/01—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station in which secondary air is induced by injector action of the primary air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0053—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted at least partially below the floor; with air distribution below the floor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/40—Noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/40—HVAC with raised floors

Definitions

  • the invention relates to a method for air conditioning a room and a ventilation unit with at least one heat exchanger for temperature control of air, which is associated with at least one fan Temper michsmodul the ventilation unit, wherein the fan Temper michsmodul at least one fan for forcing a flow of at least one suction Opening the ventilation device sucked air in thermal contact with the heat exchanger has past this.
  • Such ventilation units are used for example for ambient air temperature control.
  • the fan makes it possible to suck in room air into the ventilation unit and to return it to the room after it has been heated by the heat exchanger. It goes without saying that instead of heating and cooling in the sense of air conditioning can take place.
  • the forced circulation by means of the fan can achieve high air velocities, which, however, are associated with pronounced turbulence and generally with a high noise level.
  • Object of the present invention is to provide a ventilation device with lower noise level while high ventilation performance, which is particularly variable and has a compact design possible.
  • An inventive ventilation device with at least one heat exchanger or convector for temperature control of air which is associated with at least one fan Temper michsmodul the ventilation unit, wherein the fan Temper michsmodul at least one fan for forcing a flow of sucked by at least one suction port of the ventilation device in thermal contact with the Heat exchanger or convector has past this, also has at least one operating on the induction principle induction Temper michsmodul.
  • the inventive combination of a fan Temper michsmoduls and an induction Temper michsmoduls in a ventilation device can be accessed or adjusted depending on the conditions and requirements individual operating profiles that are adapted for example to the user preferences and / or daily or seasonal.
  • a ventilation device at a very low noise level nevertheless a high air conditioning or ventilation performance can be achieved.
  • the ventilation unit is characterized by a compact design and individual installation options.
  • the ventilation unit is in particular part of a ventilation installation in a building.
  • Common heat exchangers can be used as heat exchangers, for example from a heat exchanger fluid through streamable tubes which are arranged in the fan air flow.
  • the heat exchange fluid can serve both as a heating medium and as a cooling medium. If only a heating effect is desired, a convector can be used, the z. B. consists essentially of electrically heatable wires or the like.
  • the ventilation unit can operate in recirculation mode.
  • an inlet opening is preferably provided, which allows the inflow of fresh air.
  • the induction principle is based on the fact that when flowing through an ejector nozzle by a primary air flow in the flow direction behind the ejector nozzle, a negative pressure can be generated, which is used to suck in another air flow in a section behind the ejector nozzle. In this case, the induction principle uses the energy provided, for example, by the flow velocity of fresh air for intake of room air.
  • the induction temperature control module is a passive module. This means that it is possible to dispense with a fan or the like in the induction temperature control module. In particular, no active means are provided which increase a pulse of the air flowing into the induction Temper michsmodul airflow. A regulation of the flow velocity takes place, for example, by means of ventilation flaps, which are provided at one and / or a plurality of outflow openings or else in a line cross section in the interior of the induction temperature control module.
  • the ventilation device according to the invention can be kept particularly compact, when the heat exchanger or convector is used both for controlling the temperature of the air flow of the fan Temper michsmoduls and the air flow of the induction Temper michsmoduls, the Temper mecanicsmodulen different sections of the heat exchanger or convector can be assigned.
  • a heat exchanger or convector of a fan Temper michsmoduls can be used simultaneously for controlling the temperature of air through the induction Temper michsmodul by the induction temperature control module associated air flow is also passed to the heat exchanger or convector or through it.
  • At least one further heat exchanger or convector is provided for the purpose of temperature control. tion by the induction Temper istsmodul serves. This allows a better thermal decoupling of tempered by the various modules airflows.
  • the fact that the air flow to be tempered by the induction tempering module generally has a lower temperature than the air flow to be tempered by the fan tempering module can be taken into account by means of an additional heat exchanger or convector.
  • the fan temperature control module and the induction temperature control module can be arranged in different structural variants.
  • a first embodiment with a longitudinal arrangement it is provided that at least one fan tempering module and at least one induction tempering module are arranged adjacent to each other, in particular in series, and that each of these is assigned a longitudinal section of at least one heat exchanger or convector.
  • exactly one heat exchanger or convector is assigned to the temperature control modules.
  • a heat exchanger formed essentially by a plurality of heat exchanger tubes protrudes this heat exchanger z. B. in about halfway into each of the modules, if exactly two modules are provided.
  • the temperature control modules used are fluidically separated from each other.
  • the temperature control modules are arranged in series along the heat exchanger or convector.
  • two or more fan temperature control modules and induction temperature control modules can be lined up alternately along the heat exchanger.
  • the heat exchanger extends through all of the modules used. This results in an alternating sequence of the corresponding outflow openings of the respective modules a more homogeneous total air flow into the room.
  • at least one fan tempering module and at least one induction tempering module adjacent to each other, in particular one above the other are arranged, and that each at least one side portion of at least one heat exchanger or convector is assigned.
  • the lateral section is in particular a longitudinal side.
  • the upper side can be assigned to the fan temperature control module and the lower side to the induction temperature control module.
  • this arrangement allows a closely spaced arrangement of the respective outflow openings of the various Temper michsmodule and a compact structure.
  • the induction tempering module is preferably integrated in a housing which is essentially identical to an ordinary fan tempering module.
  • a favorable structural arrangement can also be achieved by arranging the heat exchanger or convector between the fan tempering module and the induction tempering module.
  • Temperianssmodulen are assigned separate outflow openings.
  • the particular adjacent outflow openings have the same outflow direction.
  • the outflow openings can be z. B. be configured so that substantially parallel flow curtains are formed by the fan temperature control module and the induction Temper michsmodul.
  • the fan temperature control module and the induction temperature control module are preferably both individually, ie independently of each other, as well as operated together.
  • the modules are fluidically separated from one another so that an independent adjustment of the operating parameters of the respective modules can take place.
  • the invention also relates to a method for conditioning a room by means of a ventilation device with at least one heat exchanger or convector, in particular according to one of the embodiments described above.
  • a first room air stream is sucked with at least one fan and passed to the temperature control of the heat exchanger or convector and delivered in a first supply air to the room.
  • the flow of a primary air stream is used to generate a suction to suck in at least one other room air flow and to unite with the primary air flow to a mixed air stream, which is delivered to the room as supply air.
  • the primary air flow, the further room air flow and / or the mixed air flow for temperature control are conducted past the at least one heat exchanger or convector or to a further heat exchanger or convector.
  • the generation of the suction effect is preferably passive, wherein the primary air flow, z. B. fresh air, inherent impulse is used.
  • external air can also be supplied via the fan or according to the induction principle.
  • it is room air.
  • the temperature control of the primary air flow which serves, for example, primarily for the supply of fresh air, can be effected by the further room air flow and / or by the heat exchanger.
  • the air streams to be tempered are guided past the same heat exchanger or convector, in particular on different sides.
  • the ratio of the first and second supply air flow into the room is set in dependence on at least one environmental parameter.
  • the ratio of the two supply air flows is to be understood in particular the ratio of the respective air mass flows.
  • the first and / or the second supply air flow into the room can be fully activated or completely deactivated or continuously adjusted to another value.
  • the second supply air flow can be almost deactivated, so that the temperature of the room is mainly caused by the first supply air flow.
  • the first supply air flow can be at least almost deactivated, whereas the second supply air flow is used for low-noise ventilation or temperature of the room.
  • the first and second supply air flows can be controlled as a function of the time of day or the season.
  • a control depending on the temperature difference between the room and the environment or alone based on the outside temperature can be made.
  • the induction temperature control which has only a very low noise level
  • the fan temperature control module is used more intensively during the daytime.
  • the fan temperature control module can be used increasingly when a temperature difference between the outside air, ie the primary air flow, and the inside air, ie the first room air flow, exceeds a certain threshold.
  • the fan temperature control module comes increasingly in winter and the induction temperature control module is increasingly used in summer.
  • the generation of the first and / or the second supply air flow is controlled as a function of an ambient noise level.
  • the ventilation unit can automatically detect whether - for example, at night - a low noise level and therefore switch to quietest possible operation, namely to operate essentially with the second supply air from the induction tempering module.
  • a higher noise level is detected, a less noiseless operation can be selected, for example, by increased use of the first supply air flow from the fan Temper michsmodul.
  • the first and second supply air streams emerge from the ventilation unit in the same direction of flow.
  • both supply air flows into the space have at least approximately the same flow velocity.
  • FIG. 2 shows a plan view of the ventilation device shown in FIG. 1
  • FIG. 3 is a plan view of a ventilation device according to a second embodiment of the invention
  • FIG. 5 in cross section along the line B-B, the ventilation device shown in Fig. 3.
  • the ventilation device 1 has in a common housing 2 a substantially formed by a plurality of tubes 3 heat exchanger 4. For sucking a first room air flow 5 from a room to be tempered, a suction opening 6 is arranged in the housing upper side 7.
  • This first room air stream 5 passes through the heat exchanger 4 as a result of the suction effect of a fan 8, whereby the first room air flow 5 is tempered.
  • the tubes 3 are flowed through by a suitable heat exchanger fluid. In this way, depending on the needs, a heating or cooling of the first room air stream 5 take place.
  • the fan 8, the heat exchanger 4 and the first outflow opening 10 are combined in a fan temperature control module 11.
  • an induction Temper ists- module 12 is arranged, which is fed by a primary air stream 13.
  • This primary air flow for example fresh air, flows through an ejector nozzle 14, so that a negative pressure is generated in a downstream pipe section 15.
  • This causes a further room air flow 16 through the heat exchanger. 4 or is sucked past this in the pipe section 15.
  • the further room air flow 16 is mixed with the primary air flow 13 and tempered by the heat exchanger 4.
  • the further room air stream 16 and the primary air stream 13 are combined in the pipe section 15 to form a mixed air stream 17, which emerges from the air handling unit 1 as a second supply air stream 18 from a second outflow opening 19.
  • the mixed air flow 17 is passed through the heat exchanger 4. In the present case, only the portion of the mixed air flow 17 formed by the further room air flow 16 passes through the heat exchanger 4.
  • the primary air flow 13 is guided from the outside 20 of a building wall 21 shown schematically in the ventilation unit 1.
  • To generate the suction effect behind the ejector nozzle 14 is exclusively the pulse of the primary air flow 13. In this way, a very quiet, passive ventilation by means of the ventilation unit 1.
  • the ventilation device according to FIG. 1 is designed as an underfloor ventilation device, which is expressed by the floor level 22 indicated in the beginning.
  • the first outflow opening 10 of the fan temperature control module and the second outlet opening 19 of the induction temperature control module are arranged adjacent to one another on the upper side 23 of the ventilation device 1.
  • the suction port 6 is covered by a ventilation grille 24.
  • the heat exchanger 4 is arranged between the induction tempering module 12 and the ventilator temperature control module 11 provided above, both modules for temperature control of the first and the second supply air flow 9 and 18, respectively use the heat exchanger 4.
  • An alternative embodiment is shown in Figs. 3, 4 and 5.
  • the ventilation device 1 has a fan temperature control module 11, adjacently thereto an induction temperature control module 12 and, adjacent thereto, another fan temperature control module 11 a arranged in series along a common heat exchanger 4 are arranged.
  • the modules 11, 11 a and 12 are fluidly separated from each other. This can also be seen on the basis of the separate first outflow openings 10, 10a and the second outflow opening 19.
  • the outflow direction is substantially perpendicular to a housing top 7, ie, approximately perpendicular to the plane.
  • a first room air flow 5 can be sucked with the fan 8 through the heat exchanger 4 in the ventilation unit 1 to be tempered there.
  • a first supply air flow 9 leaves the ventilation device 1 through the first outflow opening 10 into the room.
  • a section through the induction Temper istsmodul 12 shown in FIG. 3 along the line B-B is shown in Fig. 5.
  • the inflow of a further air flow 16 takes place approximately in the same manner as in the fan Temper michsmodul according to FIG. 4 by an-mammalian opening 6.
  • the suction effect is, however, achieved by means of a primary air flow 13, which passes through the ejector nozzle 14 and thereby behind the Ejector nozzle 14 generates a negative pressure.
  • the further room air flow 16 is passed through the heat exchanger 4 and tempered, after which it exits through a second outflow opening 19 after forming a mixed air flow 17 from the primary air flow 13 and the room air flow 16 as the second supply air 18 again from the ventilation unit 1.
  • an essential aspect of the present invention is that in known solutions always a simple form of induction technology, such as direct induction, is used.
  • the direct induction is simply a matter of a primary air volume flow entraining a certain and comparatively much smaller secondary air volume flow, for example substantially in that an air gap is provided between the convector and the primary air flow.
  • the induction module realized in a structurally largely identical space is always a realization of a secondary or indirect induction in which a primary air volume flow exiting through the air flow downstream through the convector and thus viewed from the convector generates a vacuum through which a room air or secondary air volume flow entering the convector from the convector is sucked through it.
  • the indirectly induced secondary air volume flow is typically a multiple of the primary air volume flow.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Central Air Conditioning (AREA)

Abstract

L'invention concerne un appareil de ventilation (1) et un procédé correspondant, ledit appareil de ventilation comprenant au moins un échangeur de chaleur (4) qui est destiné à réguler la température de l'air et est associé à au moins un module de régulation de la température par ventilateur (11) de l'appareil de ventilation (1). Le module de régulation de la température par ventilateur (11) comprend au moins un ventilateur (8) pour forcer un flux d'air, aspiré par au moins une ouverture d'aspiration (6) de l'appareil de ventilation (1), à passer devant l'échangeur de chaleur (4), en contact thermique avec ce dernier. L'appareil de ventilation (1) comprend en outre au moins un module de régulation de la température à induction, fonctionnant selon le principe de l'induction.
PCT/EP2009/000748 2008-02-04 2009-02-04 Appareil de ventilation encastré dans le sol, et procédé pour climatiser une pièce WO2009098041A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008007641.4 2008-02-04
DE102008007641.4A DE102008007641B4 (de) 2008-02-04 2008-02-04 Lüftungsgerät

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WO2009098041A1 true WO2009098041A1 (fr) 2009-08-13

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PCT/EP2009/000748 WO2009098041A1 (fr) 2008-02-04 2009-02-04 Appareil de ventilation encastré dans le sol, et procédé pour climatiser une pièce

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WO (1) WO2009098041A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008051032A1 (de) 2008-10-13 2010-04-15 Pluggit International B.V. Modulares und Fassaden-integriertes Lüftungs- und Klimasystem
US10180285B2 (en) 2013-01-21 2019-01-15 Carrier Corporation Air terminal for heating or air conditioning system
IT201900018620A1 (it) 2019-10-11 2021-04-11 Progetto Cmr S R L Elemento modulare comprendente un’unità di climatizzazione integrata e atto a sostituire una porzione di facciata di un edificio in corrispondenza di almeno un piano dell’edificio e corrispondente procedimento per rimuovere e sostituire la porzione di facciata con l’elemento modulare
EP4227587A1 (fr) * 2022-02-14 2023-08-16 Carrier Corporation Module de plénum d'air frais pour un ventilo-convecteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234308A1 (de) * 1981-09-19 1983-04-07 Allen-Martin Electronics Ltd., Wolverhampton Regelsystem
EP1331452A2 (fr) * 2002-01-17 2003-07-30 LTG Aktiengesellschaft Appareil de ventilation décentralisé et méthode pour chauffer ou refroidir une pièce d'une façon décentralisée
DE202004003427U1 (de) * 2004-03-05 2004-05-13 Ltg Aktiengesellschaft Raumlufttechnische Einrichtung zum Heizen, Kühlen und/oder Belüften eines Raumes
DE202007001429U1 (de) * 2007-01-22 2007-03-22 Ltg Aktiengesellschaft Einrichtung zum Heizen, Kühlen und/oder Lüften eines Raumes eines Gebäudes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19604531C1 (de) 1996-02-08 1997-04-30 Ltg Lufttechnische Gmbh Lufttechnische Einrichtung
DE19645593C1 (de) * 1996-11-05 1998-05-20 Ltg Lufttechnische Gmbh System zum Lüften, Kühlen und/oder Heizen eines Raums
DE10253264C5 (de) * 2002-01-17 2008-04-17 Ltg Aktiengesellschaft Dezentrale lufttechnische Einrichtung sowie Verfahren zum dezentralen Heizen oder Kühlen eines Raumes
DE20305801U1 (de) 2003-04-08 2003-07-17 Ltg Ag Dezentrales Lüftungs- oder Klimagerät
DE102004010738A1 (de) * 2004-03-05 2005-09-22 Ltg Aktiengesellschaft Raumlufttechnische Einrichtung zum Heizen, Kühlen und/oder Belüften eines Raumes sowie entsprechendes Verfahren
DE102004036886A1 (de) * 2004-07-22 2006-02-16 Ltg Aktiengesellschaft Lufttechnische Einrichtung und Verfahren zum Heizen, Kühlen und/oder Belüften eines Raumes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234308A1 (de) * 1981-09-19 1983-04-07 Allen-Martin Electronics Ltd., Wolverhampton Regelsystem
EP1331452A2 (fr) * 2002-01-17 2003-07-30 LTG Aktiengesellschaft Appareil de ventilation décentralisé et méthode pour chauffer ou refroidir une pièce d'une façon décentralisée
DE202004003427U1 (de) * 2004-03-05 2004-05-13 Ltg Aktiengesellschaft Raumlufttechnische Einrichtung zum Heizen, Kühlen und/oder Belüften eines Raumes
DE202007001429U1 (de) * 2007-01-22 2007-03-22 Ltg Aktiengesellschaft Einrichtung zum Heizen, Kühlen und/oder Lüften eines Raumes eines Gebäudes

Also Published As

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DE102008007641A1 (de) 2009-08-06
DE102008007641B4 (de) 2022-08-11

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