EP1535000A1 - Dispositif et procede de traitement de l'air - Google Patents

Dispositif et procede de traitement de l'air

Info

Publication number
EP1535000A1
EP1535000A1 EP03791176A EP03791176A EP1535000A1 EP 1535000 A1 EP1535000 A1 EP 1535000A1 EP 03791176 A EP03791176 A EP 03791176A EP 03791176 A EP03791176 A EP 03791176A EP 1535000 A1 EP1535000 A1 EP 1535000A1
Authority
EP
European Patent Office
Prior art keywords
air
exchanger
room
frame
convection
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.)
Withdrawn
Application number
EP03791176A
Other languages
German (de)
English (en)
Inventor
Rosella Rizzonelli
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1535000A1 publication Critical patent/EP1535000A1/fr
Withdrawn legal-status Critical Current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
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • 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
    • F24F1/0068—Indoor units, e.g. fan coil units characterised by the arrangement of refrigerant piping outside the heat exchanger within the unit casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/008—Details related to central heating radiators
    • F24D19/0087—Fan arrangements for forced convection
    • 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
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0233—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels
    • F28D1/024—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels with an air driving element
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • 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
    • F24F2221/54—Heating and cooling, simultaneously or alternatively
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D2001/0253—Particular components
    • F28D2001/0286—Radiating plates; Decorative panels
    • 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]

Definitions

  • the present invention relates to a device and a method for air treatment in rooms, and therefore for heating, cooling or dehumidifying air.
  • fan- convectors which are used in domestic and industrial installations such as terminals for heating or cooling and dehumidifying air. In more sophisticated applications they can also carry out dehumidification through the combined effect of a cooling and dehumidifying battery and a pos -heating battery.
  • the primary operating fluid i.e. circulating within the heat exchanger
  • the primary operating fluid can consist of water or other fluids that are able to convey heat both by conduction and by state change (through gas evaporation or condensation processes) .
  • the secondary fluid (circulating outside the exchanger) consists of humid air.
  • Heating, cooling or thermodynamic treatment (in case of saturated steam compression systems) of the primary fluid are carried out at the state of the art by means of central units consisting of devices such as: boilers, water refrigerators or motocondensing units (outer units of air conditioners) with or without heat pump system, electrical resistances, solar panels, heat regenerators, absorption cycle machines, etc.
  • the primary fluid is supplied through pipes connecting the user or treatment unit, for instance the fan- convector, to the heat generation or absorption unit.
  • One or more fan-convectors for conditioning the various rooms can be mounted in a single installation.
  • Present fan-convectors basically consist of the following components:
  • a ventilation group circulating air on the heat exchanger.
  • This ventilating system can be centrifugal (suction from fan center and intake conveyed by a suitable screw conveyor into a precise direction) or tangential (suction of fluid filaments tangential to fan diameter, with dynamic acceleration of air flow, through the principle of central vortex with cut-off area) .
  • a heat exchanger primary fluid-air comprising a series of parallel pipes (generally made of copper) arranged according to precise geometries, onto which is fastened with an excellent mechanical and thermal contact a series of thin low-thickness metal sheets (generally made of aluminum) .
  • Pipes are connected one to the other through suitable bends having pipe diameter, so as to form one or more closed circuits in which the primary fluid circulates.
  • Metal sheets can be more or less spaced one from the other. Their aims is to better dissipate heat contained in the primary fluid, or in case of cooling operation, to transmit heat contained in air (or secondary fluid) to pipes and then to the primary fluid.
  • Heat exchangers are equipped with suitable connections.
  • Metal sheet or plastic carrying structure anchoring the components described above and ensuring the fastening or resting of the device onto a wall, ceiling or floor.
  • Metal or plastic cabinet for aesthetic covering and closing of inner air ducts. If the fan-convector is not in sight (false ceilings, engine rooms, etc.) the outer cover has only a functional and not an aestheti- cal purpose, and is therefore made of metal sheets or simple plastic boards.
  • Suction and intake racks for treated air are not among the accessories of the fan-convector, but are chosen by the installer depending on contingent needs.
  • Air intake racks are often adjustable so as to choose flow direction.
  • Electric or electronic control panel for managing functions mainly present in accessible fan-convector located within rooms to be conditioned. Air filter.
  • This device can be mechanical, electrostatic or with active carbons. In some cases these technologies are combined together into one component .
  • the working of present fan-convectors is therefore based only on the principle of convection by mechanical ventilation.
  • the fan-convector ensures - thanks to mechanical ventilation - large air flows that can convey large amounts of heat with relatively small exchange surfaces. This feature is even more relevant the greater absolute temperature differences between primary fluid and air.
  • ventilation is very important to ensure sufficient heat conveyance in small- size devices (that can be integrated into any room) .
  • said fan-convectors have some drawbacks, since in case of absence of the air flow generated by the working of the motor fan, thermal yield values, also for heating, are very low and therefore insufficient to keep thermal conditions in the room.
  • the constant ventilation further generates some negative effects such as: a more or less relevant noise and a continuous movement of air and dusts, containing substances dangerous for the human organism.
  • radia- tors that are commercially available at present in various technical embodiments (cast iron or aluminum meltings, cold forming of steel sheets, assembly of pipes or extruded profiles and laminates, etc.), which are based only on natural convection and irradiation principles. Their limitations are a low heating power with respect to their size and the absence of a cooling function. The low specific power of radiators results in a long starting stage for winter thermal conditions in rooms, especially starting from very low inner temperatures .
  • the technical task underlying the present invention is to conceive a device and a method for air treatment that can basically obviate the aforesaid drawbacks .
  • an important aim of the invention is to conceive a device and a method for air treatment that can combine the advantages of a system exploiting natural irradiation and convection with those of a system exploiting convection with mechanical ventilation.
  • Another aim of the invention is to carry out a device and a method that enable a coordination of the operations performed by the single components and thus an optimal air treatment.
  • a further aim of the invention is to conceive a device and a method enabling a particularly effective and efficient air treatment.
  • Further aims of the invention are to conceive a device and a method that are easy to be carried out and to be used and with low costs.
  • the technical task and the aims referred to above are basically achieved by a device and a method characterized in that they comprise one or more of the technical solutions claimed below.
  • FIG. 1 shows a perspective view of a device according to the present invention
  • FIG. 2 is a view corresponding to the one in Figure 1, in which the front portion of the device frame has been removed;
  • Figure 3 shows a lateral sectioned view of the device in Figure 1;
  • FIG. 4 schematically shows three possible assembling positions of the device of Figure 1 in a room.
  • the device for air treatment according to the invention is globally referred to with reference number 15.
  • the device 15 comprises a frame 4 housing ventilating means 1, comprising for instance a conventional mechanical ventilation system, preferably a motor fan 1.
  • the carrying structure or frame 4 ensures the fastening of the various components and is also necessary for anchoring the whole device 15 to the wall, ceiling or floor.
  • the device 15 further comprises a screw conveyor 7.
  • the motor fan 1 can be carried out by exploiting the principles of the various aeraulic machines known at present (centrifugal, radial, tangential or axial machines) .
  • heat is transferred between the primary operating fluid circulating in the pipes or ducts 10 connected to the first heat exchanger 2, and air itself.
  • air flows through a second duct 11 of the frame 4 till it gets again outside through the rack 6 or through a further duct and dif- fuser assembled during the installation of the device 15 .
  • the device 15 further comprises two collection basins 8 through which condensation water that forms on the convective exchanger 2 during cooling and dehumidifi- cation operation is drained.
  • the basins 8 help to collect condensate when the device 15 is in standing position 12 close to the ground, in horizontal position, for instance when placed 14 on the ceiling, or upside down, as it is when placed 13 in the high part of the wall (see Figure 4) .
  • a filter 5 is advantageously mounted onto the inlet opening 16, which filter can be directly placed on the device or separately mounted by the installer.
  • the working principle of the filter 5 can be by mechanical sieving (mechanical separation of dusts from air) , electrostatic (where thanks to an electrostatic potential difference between some suitably shaped electrodes dust is attracted on the latter) , or by active carbons (where polluting substances with very small molecules are adsorbed) .
  • convenient arrows show air inlet 19 and outlet 20 flows from the frame 4.
  • the device 15 in the front portion of the device 15 there is a natural radiator- convector or second heat exchanger 3, operatively con- nected to the ducts 10, in which the primary fluid circulates in series or parallel to the convective exchanger with mechanical ventilation 2.
  • the second exchanger 3 can be differently sized and carried out.
  • the function of the radiator 3 is to ensure - even if the motor fan 1 is not working - a good thermal yield both by radiant and natural convective effect.
  • the device 15 can therefore advantageously comprise a radiant fan-convector with natural convective and radiant effect, deriving from the second exchanger, and with convective effect with mechanical ventilation, deriving from the first exchanger 2.
  • the invention combines and coordinates the operation of the components constituting a traditional fan-convector with an integrated element having natural radiant and convective effect without the need for mechanical ventilation.
  • This element, the second exchanger 3, is preferably positioned on the front portion of the device 15, so as to perform its function correctly and to act also as an aesthetic cover.
  • the coordination and automation of the working of the various components are achieved thanks to convenient electromechanical and electronic devices or through mechanically driven valves.
  • control and coordination means 17 of the working of the various components which are schematically shown in the figures and can comprise automatic devices (electronic control cards) or partially manual devices (keys and electromechanical adjustments) , which control mechanical means such as valves and the like for the selection of suitable flows in the ducts 10.
  • said control and coordination means 17 can comprise control circuits known per se, which are therefore not described in further detail.
  • the device 15 is further equipped with a heat generation or absorption unit, not shown in the accompanying drawings since it is of a conventional type, opera- tively connected through the ducts 10 to both heat exchangers 2 , 3.
  • the device 15 described above can be advantageously integrated into an air treatment unit which can comprise a plurality of devices 15 and at least a central heat generation or absorption unit operatively connected to said devices 15 through the ducts or connection lines 10.
  • control and coordination means 17 of the working of the first and second exchanger comprise an adjustment and control system operating on the basis of electromechanical, electronic or thermodynamic principles ensuring the highest comfort during use.
  • the working of the various components can be affected by the difference between room temperature and the temperature requested by the user. More to the point, when there is a considerable difference between the temperature detected in the room and the desired temperature (for instance delta T > 5- 6°C) , the fan starts working in order to ensure a large heat flow that will rapidly heat or cool the room. When the temperature difference lowers (for instance delta T ⁇ 1-2°C) , the fan automatically stops and the natural radiant-convective exchanger allows to keep comfort temperature unchanged.
  • a method for air treatment in a room basically comprises the following steps:
  • the step in which room air is treated by natural irradiation and convection can be carried out as an alternative to or also simultaneously to the step in which room air is treated by convection through forced ventilation.
  • the invention has important advantages .
  • the invention combines the potentialities of a convective system with mechanical ventilation with the comfort of a radiant-convective system.
  • the performances of the device thus conceived are definitely better for rapidly achieving and keeping room thermal comfort, especially during heating operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

La présente invention concerne un ventilateur-convecteur qui comprend: un ventilateur (1) à moteur transportant l'air de la pièce à conditionner vers un échangeur thermique à ailettes (2) et vers un second échangeur thermique (3) radiateur-convecteur naturel. Ces deux éléments sont associés à un châssis (4) qui comprend: une grille de sortie d'air (6), un filtre à air (5), deux conduits (9, 11) destinés à transporter l'air et au moins deux bassins destinés à recueillir l'eau de condensation. Le fonctionnement coordonné de ces deux échangeurs thermiques et de ce ventilateur génère une diffusion d'air par convection avec une ventilation mécanique et par rayonnement et convection naturels.
EP03791176A 2002-08-30 2003-08-19 Dispositif et procede de traitement de l'air Withdrawn EP1535000A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT000016A ITTN20020016A1 (it) 2002-08-30 2002-08-30 Ventilconvettore ad effetto convettivo e radiante.
ITTN20020016 2002-08-30
PCT/IT2003/000512 WO2004020913A1 (fr) 2002-08-30 2003-08-19 Dispositif et procede de traitement de l'air

Publications (1)

Publication Number Publication Date
EP1535000A1 true EP1535000A1 (fr) 2005-06-01

Family

ID=31972226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03791176A Withdrawn EP1535000A1 (fr) 2002-08-30 2003-08-19 Dispositif et procede de traitement de l'air

Country Status (4)

Country Link
EP (1) EP1535000A1 (fr)
AU (1) AU2003264871A1 (fr)
IT (2) ITTN20020016A1 (fr)
WO (1) WO2004020913A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004062916A1 (de) * 2004-12-22 2006-07-06 Kälberer, Stefan Klimaelement
ES2323280T3 (es) * 2005-05-21 2009-07-10 Lg Electronics Inc. Climatizador.
EP1726889A1 (fr) * 2005-05-21 2006-11-29 Lg Electronics Inc. Procédé pour commander une unité de conditionnement d'air
EP1795825A1 (fr) * 2005-12-12 2007-06-13 AERMEC S.p.A. Equipement pour fournir un fluid réfrigéré à une installation d'air conditionné et installation d'air conditionné comprenant un tel équipement
GB2472202B (en) * 2009-07-28 2012-09-19 Basic Holdings Space heater
ITMI20110557A1 (it) * 2011-04-06 2012-10-07 Innova S R L Dispositivo e procedimento per il trattamento dell aria
JP5447567B2 (ja) * 2012-03-23 2014-03-19 ダイキン工業株式会社 空調室内機
CN104596064B (zh) * 2013-10-31 2017-11-07 海尔集团公司 柜式空调室内机
CN105402871B (zh) * 2015-12-01 2018-12-07 珠海格力电器股份有限公司 空调器
CN106225072A (zh) * 2016-08-29 2016-12-14 珠海格力电器股份有限公司 空调系统及其换热结构
EP3382287B1 (fr) * 2017-03-31 2023-05-10 Mitsubishi Electric R&D Centre Europe B.V. Unité de bobine de ventilateur
JP7061924B2 (ja) * 2018-05-11 2022-05-02 三菱電機株式会社 ペリメータ空調装置
IT202000001222U1 (it) * 2020-03-19 2021-09-19 Dl Radiators S R L Radiatore a secco
FR3129712B1 (fr) * 2021-11-30 2023-12-15 Pi Thermie Dispositif émetteur de chaleur ou de froid à convection forcée et système de chauffage ou de rafraichissement intégrant ce dispositif

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IT8122831V0 (it) * 1981-09-09 1981-09-09 Delchi Spa Ventilconvettore per il trattamento dell'aria di ambienti.
IT8321558V0 (it) * 1983-04-15 1983-04-15 Ricagni Angelo Ventilconvettore con vano di refrigerazione.
JPH086932B2 (ja) * 1993-11-11 1996-01-29 木村工機株式会社 輻射暖房付フアンコイルユニット
WO1997010477A1 (fr) * 1995-09-14 1997-03-20 Daikin Industries, Ltd. Unite compacte d'exterieur dotee d'une forte capacite d'echange thermique et destinee a des climatiseurs
JPH09310877A (ja) * 1996-05-24 1997-12-02 Sanden Corp 空気調和装置
SI0837288T1 (en) * 1996-10-15 2002-10-31 Aermec S.P.A. A fan convector with adjustable deflector elements

Non-Patent Citations (1)

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Title
See references of WO2004020913A1 *

Also Published As

Publication number Publication date
AU2003264871A1 (en) 2004-03-19
ITBS20070034U1 (it) 2007-12-17
WO2004020913A1 (fr) 2004-03-11
ITTN20020016A1 (it) 2004-02-29

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