CN117425799A - Air supply device with internal air mixing and radiant ceiling heating system - Google Patents

Air supply device with internal air mixing and radiant ceiling heating system Download PDF

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Publication number
CN117425799A
CN117425799A CN202280039683.4A CN202280039683A CN117425799A CN 117425799 A CN117425799 A CN 117425799A CN 202280039683 A CN202280039683 A CN 202280039683A CN 117425799 A CN117425799 A CN 117425799A
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CN
China
Prior art keywords
air
radiant
ceiling
heating system
plenum
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.)
Pending
Application number
CN202280039683.4A
Other languages
Chinese (zh)
Inventor
R·阿马托
P·阿鲁斯
A·弗朗兹
M·罗萨·布鲁辛
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Giacomini SpA
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Giacomini SpA
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Filing date
Publication date
Application filed by Giacomini SpA filed Critical Giacomini SpA
Publication of CN117425799A publication Critical patent/CN117425799A/en
Pending 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
    • 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
    • F24F5/0092—Systems using radiation from walls or panels ceilings, e.g. cool ceilings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/0421—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like comprising ducts
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
    • F24D3/16—Tube and panel arrangements for ceiling, wall, or underfloor heating mounted on, or adjacent to, a ceiling, wall or floor
    • F24D3/165—Suspended radiant heating ceiling
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/10—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with air supply, or exhaust, through perforated wall, floor or ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/0263—Insulation for air ducts
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material
    • 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
    • F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

An air supply device (1, 1') for a radiant ceiling heating system (10) of an interior room (100) comprises: a housing (2) having an inlet opening (3) and an outlet opening (4); and at least one fan (30) housed inside the housing (2) and configured to move an air flow between the inlet opening (3) and the outlet opening (4). The air supply device (1, 1') is configured and adapted to be arranged in an upper volume or plenum (20) of an interior room (100) above a false ceiling (14) of the radiation system (10), wherein the inlet opening (3) and the outlet opening (4) are configured and adapted to be in fluid connection with the interior room (100) and the upper volume or plenum (20) in cooperation with at least two openings (18) of the false ceiling (14). The invention also comprises a radiant ceiling heating system (10) provided with an air supply device (1, 1').

Description

Air supply device with internal air mixing and radiant ceiling heating system
Technical Field
The present invention relates to an air supply device with internal air mixing and a radiant ceiling heating system.
More particularly, the present invention relates to a novel air supply device for air mixing and related radiant heat system having radiant elements or panels for heating and cooling disposed in a false ceiling providing internal air mixing for an enclosed space.
Background
In the field of air conditioning for heating/cooling of spaces or rooms, radiation circulation systems or radiation panel systems are widely used, in particular in large spaces or rooms with high ceiling heights, which systems are usually integrated into the walls, floors and even the room surfaces on the ceiling. These radiation type systems are completely built-in to the structure of the space to be air-conditioned and are not visible for aesthetic and better space utilization.
The system is typically made up of a plurality of modular elements or radiating panels defining a radiating surface. Each modular element or panel is generally assembled with a rigid support frame, generally rectangular, in which the ducts for the passage of the heat transfer fluid, generally arranged as coils, are housed. The panel conduits are typically provided with connectors at the ends, which connectors are arranged on one or more sides of the panels, so that the conduits of each modular element or panel defining the ceiling can be arranged in a fluidly connected manner.
The modular element or panel generally also comprises one or more insulating layers or one or more conductive layers to transmit or receive heat uniformly and preferably from the side of the panel facing the room and to insulate the side of the panel facing the wall or surface outside the room to be air conditioned.
It is also known that circulation systems with radiant panels for space refrigeration also comprise dehumidification devices to eliminate the phenomenon of condensation of water vapor in the room. In various types of technology and building embodiments for circulating radiation panels of heating and cooling systems, a structure having radiation panels arranged in a pseudo ceiling to radiate or absorb heat from above a room to be air-conditioned is increasingly used.
The pseudo-ceiling structure of the radiation system may be of the "closed" type, that is to say when the plurality of elements or panels defining the pseudo-ceiling cover and completely or partly close the upper panel, there is generally left a space, upper volume or cavity between the pseudo-ceiling formed by the panels and the upper panel of the room to be air-conditioned, or on the other hand, may be of the "open" type when the pseudo-ceiling only partly covers the upper panel surface.
Examples of such radiant ceiling heating systems are described in european patent application EP3309314 A1.
Further examples of these known radiant ceiling heating systems are described in chinese document CN 105756256B and german document DE102011108090 A1.
A limitation of these known radiant ceiling heating systems for heating and cooling is that the interior air tends to stratify and accumulate in the space above the ceiling.
More specifically, when the radiation system is operated in a heating mode, for example, when heat energy is supplied to a room, warmer air naturally tends to be vertically stratified by convection in an upper portion of the room, particularly in a space or air chamber between a pseudo ceiling and an upper plate, thereby impeding the mixing of room air.
Even if the radiating elements or panels defining the radiating surface or pseudo-ceiling are provided with an insulating layer arranged on the surface opposite to the surface facing the interior room, heat loss (or heat absorption in case of refrigeration) of the smaller space between the pseudo-ceiling and the upper plate will still be present, thereby creating and maintaining unused thermal energy storage.
Such limitations and disadvantages of radiant ceiling heating systems also exist in the case of radiation systems operating in a cooling mode, where it has been noted that even if lower temperature air tends to stratify in the volume or space above the interior room near the ceiling top, condensation can occur if the ceiling surface approaches dew point temperature, which can lead to unhealthy conditions of the interior room.
Air mixing increases the heat exchange capacity of the radiation system and saves energy.
Disclosure of Invention
It is an object of the present invention to at least partially overcome and obviate the above-mentioned drawbacks and operational limitations of radiant ceiling heating systems.
More specifically, it is an object of the present invention to provide a radiant ceiling heating system or installation to a user which improves the mixing of air in a room without stratification of air of different temperatures in the upper part between the false ceiling and the upper plate of the room or space to be air conditioned.
It is another object of the present invention to provide a radiant ceiling heating system with air mixing to a user that can be easily installed or integrated with pre-existing systems and rooms.
It is a further object of the present invention to provide an energy efficient radiant ceiling heating system with air mixing.
Another object of the present invention is to provide a radiant ceiling heating system with simplified air mixing that is capable of having a high level of durability and reliability over time and yet that can be easily and economically implemented.
These and other objects are achieved by a radiant ceiling heating system with air mixing, which is the subject of the invention according to the independent claims.
The structural and functional features of a radiant ceiling heating system with air mixing can be better understood from the following detailed description, with reference to the accompanying drawings, which represent several preferred and non-limiting embodiments, in which:
drawings
FIG. 1 is a schematic cross-sectional view of one embodiment of a radiant ceiling heating system with air mixing purposes of the present invention in a "closed" configuration;
FIG. 2 is a schematic cross-sectional view of another embodiment of a radiant ceiling heating system with hybrid purposes of the present invention in an "open" configuration;
FIG. 3 is a schematic cross-sectional view of another embodiment of a radiant ceiling heating system with hybrid purposes of the present invention in a closed configuration wherein an upper volume or plenum is disposed and integrated into the radiant panel;
FIG. 4 is a schematic longitudinal cross-sectional view of a preferred embodiment of an air moving device for the radiant ceiling heating system purpose of the present invention;
FIG. 5 is a schematic cross-sectional view of the internal air stratification in a room having a conventional radiant ceiling heating system configured to operate in a heating mode according to known techniques;
fig. 6 is a schematic cross-sectional view of the internal air stratification in a room having a conventional radiant ceiling heating system according to the known art configured to operate in a cooling mode.
Detailed Description
In this specification, the terms "pseudo ceiling" and "radiation surface" are intended to mean a surface configured to transfer heat in the form of thermal energy to the interior room 100 and a surface configured to absorb heat by extracting thermal energy from the interior room 100.
It will also be apparent to those skilled in the art from the following how the radiant heat system may also include a conventional heat engine, or how it may be otherwise configured to operate in cooperation with a conventional heat engine, chiller, or heat pump to generate and/or absorb heat.
In the following description, the term "inside air" refers to: the air present in the interior room below the false ceiling, without recirculation or exchange with the air of the outdoor environment, also includes the air present in the upper volume or plenum above the false ceiling.
With reference to fig. 1-3, and in particular to fig. 4, a blowing device 1 for a radiant ceiling heating system 10 of an interior room 100, which blowing device 1 comprises a housing 2 having an inlet opening 3 and an outlet opening 4, at least one fan 30 accommodated inside said housing 2, which fan 30 is configured to move an air flow between the inlet opening 3 and the outlet opening 4, and vice versa, as subject of the invention, is described below.
The air supply device 1,1' is configured and adapted to be arranged in an upper volume or plenum 20 of the interior room 100 above a false ceiling 14 of the radiation system 10.
The inlet opening 3 and the outlet opening 4 are configured and adapted to be in fluid connection with the interior room 100 and the upper volume or plenum 20 in cooperation with at least two openings 18 of a false ceiling 14 such that the fan 30 is adapted to create an air mixing flow between the interior room 100 and the upper volume or plenum 20 of a conventional radiant ceiling heating system 10.
The fan 30 may advantageously be a conventional axial impeller fan configured to move an air stream, but may also comprise any type of fan capable of moving an air stream, such as a radial fan or a bladeless fan, typically driven by a motor.
The inlet opening 3 and the outlet opening 4 of the air-blowing device 1 are typically formed in the housing 2 and may define a linear direction, a 90 ° direction or an angled direction of the air flow through the air-blowing device 1, 1'. The inlet opening 3 and the outlet opening 4 may also be more than one and may be provided with known connection means (not shown), such as bends or connecting pipes, to the openings 18 of the radiant false ceiling 14.
The air supply device 1 may further comprise at the inlet opening 3 and the outlet opening 4 an air flow turning and conveying device 5, said air flow turning and conveying device 5 being selected from the group comprising for example fixed or adjustable blades or vanes, conveyors, slits formed directly in the housing 2 or baffle elements separate from the housing 2, to allow air flow orientation and flow calibration and adjustment of the air flow.
Referring again to fig. 4, the air supply device 1 may also advantageously be provided with a detachable filter element 6 adapted to remove dust and particles from the air and an air disinfection device 7 or system adapted to deliver or release disinfection and sterilization substances into the air stream, such as a conventional spray device connected to a tank (not shown).
The air supply device 1 may also be provided with a layer 8 of sound absorbing or thermo-acoustic insulating material, which layer 8 is arranged inside (as in the example of fig. 4) or outside the housing 2.
Referring only to fig. 1-3, a radiant ceiling heating system 10 for heating and cooling an interior room 100, which is the subject of the present invention, is described below in several preferred embodiments.
The radiant ceiling heating system 10 in its general embodiment includes:
a radiant surface or false ceiling 14 formed by one or more mutually connectable radiant panels 12 provided with ducts 15 suitable for conveying a heat transfer fluid;
an upper volume or plenum (plenum) 20 comprised between the pseudo-ceiling 14 and the surface of an upper slab (upper slab) 102 of said interior room 100.
The false ceiling 14 formed by one or more interconnected radiating panels 12 is provided with at least two openings 18, which openings 18 are adapted to place the interior room 100 in fluid connection with the upper volume or plenum 20 in inlet and outlet.
The radiant ceiling heating system 10 has innovative features comprising at least one air moving device 1,1 'as described above arranged above the false ceiling 14 between the interior room 100 and the upper volume or plenum 20, the air moving device 1,1' being adapted to circulate air such that the circulated interior air is mixed through the openings 18 and prevented from stratification at different temperatures.
The false ceiling 14 typically has an exposed surface in direct contact with the interior room 100 and may have a smooth or microporous finish and may be made of metal, gypsum board, or other compatible building materials.
Referring specifically to the "closed" embodiment of fig. 1, wherein the ceiling 14 is configured to cover the entire surface of the upper plate 102, at least two openings 18 are formed directly in two or more of the radiant panels 12 to place the interior room 100 and the upper volume or plenum 20 in fluid connection.
In other possible further variant embodiments, the opening 18 may be defined by the absence or array interruption of one or more elements forming the ceiling 14 or the radiant panel 12.
The at least one air supply device 1 for air circulation may be arranged with an inlet opening 3 or an outlet opening 4 at the at least two openings 18 and configured such that inlet and outlet interior air moves into the upper volume or plenum 20.
The radiant ceiling heating system 10 may be provided with an external support structure 16, the external support structure 16 being adapted to attach the panel to a load bearing surface or upper plate 102 of the interior room 100 and in this way configured to define the vertical height of the volume or plenum 20.
Referring again to fig. 1, the support structure 16 of the false ceiling 14 may generally be provided by a rigid frame of radiant panels 12, with the radiant panels 12 being interconnected and attached to the surface of the upper floor 102 or to the walls of the interior room by known means of attachment (e.g., bracket attachment screws, etc.), not shown.
The support structure 16 may also be independent of the radiant panels 12 and stable to the load bearing structure of the interior room 100 prior to placement and connection of the radiant panels 102 to form the false ceiling 14.
Referring again to the embodiment of fig. 1 and 3, the radiant ceiling heating system 10 may comprise further air moving devices 1', which air moving devices 1' are advantageously arranged in pairs, wherein the air moving devices 1 are configured for inlet and the air moving devices 1' are configured for outlet of the internal air flow in the upper volume 20.
With particular reference to fig. 3, in a radiant ceiling heating system 10 having a very large radiant surface, a delayed air supply 1' may be provided that is adapted to maintain a constant air flow within the upper volume or plenum 20.
For very large radiating surfaces 14, an additional return fan 30 may be arranged to maintain a constant and uniform flow of internal air circulating within the upper volume or plenum 20.
Referring again to fig. 1 and 3, it will be clear to a person skilled in the art how the inlet opening 3 and the outlet opening 4 and the direction of rotation of the fan 30 of the air supply device 1 can be reversed depending on how the air supply device 10 is configured to send air into the upper volume or plenum 20 by extracting air from the interior room 100 or to extract air from the upper volume or plenum 20 to send it into the interior room.
In an alternative "open" type embodiment, referring particularly to fig. 2, the dummy ceiling 14 may be smaller in size than the area of the upper plate 102 and configured to cover only a portion thereof, in which case the at least two openings 18 are defined by the surface portion of the upper plate 102 not covered by the dummy ceiling 14. The at least two openings 18 are formed directly in the two or more radiant panels 12 such that the interior space 100 and the upper volume or plenum 20 are in fluid connection.
Referring again to the embodiment of fig. 2, the false ceiling 14 formed from one or more radiant panels 20 generally includes brackets or ties 16' for maintaining the false ceiling 14 suspended from the surface of the upper plate 102.
The at least one air moving device 1 adapted for air circulation may be arranged on top of the false ceiling 14 and be directly stabilized on the radiation panel 12, the air moving device 1 being configured to move the incoming and outgoing air into the upper volume or plenum 20 even if not integrally bound by the false ceiling 14.
The fan 30 arranged in the air supply device 1 may be any type of fan or blower, such as a radial impeller fan, an axial vane fan or an axial vaneless fan.
If the surface of the ceiling 14 is very wide, an additional delivery fan 30 may be provided that is configured to maintain a constant circulation of the internal air flow within the interior volume or plenum 20.
In the embodiment of fig. 1 and 2, the false ceiling 14 and the radiant panel 12 may also be free of insulation on the opposite side from the interior 100, but may advantageously include an insulation layer or multiple layers of insulation with sound insulation features.
In another embodiment of the radiation system 10, with particular reference to fig. 3, said upper volume or plenum 20 may be formed directly and integrated within the structure of the joined together radiation panels 12 and arranged between the support surface of the heat transfer fluid ducts 15 and the insulating layer 42, adapted to define an insulating surface 44 in a manner cooperating with the plurality of radiation panels 12.
The radiant panel 12 may advantageously include a support structure 16 or frame configured to hold the support surface of the duct 15 in a position away from the insulation layer 42 such that an upper volume or plenum 20 disposed between the false ceiling 14 and the insulation surface 44 can be implemented in a coordinated manner with the plurality of radiant panels 12.
The support structure 16 may also advantageously be fixed to the load bearing structure of the interior room 100.
Still referring to fig. 3, the air supply device 1,1' for air circulation may be arranged with an inlet opening 3 and an outlet opening 4, the at least two openings 18 being located therein, which are formed only on the false ceiling 14 and not on the insulating surface 44, or within the upper volume or plenum 20 and configured to move inlet and outlet air into the upper volume or plenum 20.
In the last embodiment, the fan 30 of the air supply device 1,1' may also be a radial fan configured to move the air flow by changing the direction of the air flow by 90 °, but may also comprise any type of fan suitable for moving air, such as an axial vane fan or an axial vaneless fan.
With reference to all embodiments, the air supply device 1,1' may be directly fixed to the surface of the false ceiling 14, the support structure 16 or the upper plate 102 on the radiant panel 12, or they may be fixed by an auxiliary support frame (not shown).
The radiant panel 14 may advantageously be shaped to allow the opening 18 to be made as a support frame for the passage of the air flow and for anchoring the blowing device 1, 1'.
The ducts 15 of the heat transfer fluid of the radiant panel 12 can also be shaped and arranged to allow the subsequent access to the openings 18 for the passage of the air flow, so that the radiant panel 12 can be installed once with a single shape suitable for defining the false ceiling 14.
The auxiliary support frame (not shown) of the air supply device 1,1' may also be advantageously oriented to direct the air flow of the air supply device 1, thereby defining a preferential flow within the upper volume or plenum 20.
The radiant ceiling heating system 10 as subject of the invention may also comprise a fan control system 30 of the air supply device 1 controlled by the logic unit, in order to operate continuously or intermittently. The control system may also comprise temperature sensors arranged throughout the room 10 and the upper volume 20 such that the fan 30 is operated, for example when the logic unit detects a temperature difference above a certain limit.
The operation described below can be understood from the description of the air blowing device 1 and the radiant ceiling heating system 10 as the subject of the present invention.
Referring initially to fig. 4, in a simplified embodiment, a blower device 1 as subject of the invention has a housing with an inlet 3 and an outlet 4 configured for the air flow generated by a fan 30.
As shown in the example of fig. 1 and 2, the device is arranged above the radiant ceiling 14 and is configured to draw in air and supply it into the upper volume or plenum 20, which is then returned into the interior room 100.
At or near each opening 18 an air supply device 1 is arranged, and for each air supply device 1 configured to supply air from the interior room 100 into the upper volume or plenum 20, an additional air supply device 1 may be coupled for higher efficiency, which additional air supply device 1 is configured to take air from the upper volume or plenum 20 and return it into the interior room 100.
It is obvious how the inlet opening 3 and the outlet opening 4 are defined by the direction of the air flow movement given by the fan 30 and can be reversed.
The fan 30 inside the housing may be configured to move the airflow in either direction.
In the preferred embodiment of fig. 1, two air supply devices 1 are arranged at an opening 18 in the ceiling 14. The blower device 1, which draws air from the interior room 100, is arranged such that the inlet opening 3 is connected to the opening 18, while the outlet opening 4 is in fluid connection with the upper volume or plenum 20. While the air supply device 1' for re-introducing air into the interior room is configured with an inlet opening 3 in fluid connection with the upper volume or plenum 20 and an outlet opening 4 in connection with the other opening 18.
The optional filter element collects dust and particles present in the air, and the present air disinfection device 7 or system releases disinfection and sterilization material contained in the reservoir into the air flow, thereby cleaning and disinfecting the mixed air flow.
The presence of the additional sound absorbing layer 8 in the housing 2 makes the device quieter by eliminating noise and vibrations caused by the fan 30 and its motor.
Referring again to fig. 4, the deflection and delivery means 5 of the fluid, such as vanes, conveyors or slits arranged at the inlet opening 3 and the outlet opening 4, allow to preferentially direct the air flow to the upper volume or air chamber 20, calibrate and adjust the flow rate, but also allow to improve the capturing of the air flow from the upper volume or air chamber 20 by improving the recirculation of the fluid and thus the air mixing between the upper volume or air chamber 20 and the interior room 100.
Referring first to fig. 1, in a first embodiment of a radiant ceiling heating system 10, hot or cold air that tends to stratify in an upper volume or plenum 20 above the ceiling 14, as shown in the example of fig. 5, is advantageously mixed with air from an interior room 100 by a fan 30 of an air delivery device 1 to create a circulating interior air flow as shown by arrow loop F in fig. 1. The fan 30 of the at least one air-moving device 1 is configured to suck air from the inlet opening 3 through the opening 18 in the interior room 100 and to feed it into the upper volume or plenum 20 in a mixed manner with the stratified air, which is then returned into the interior room 100 by the additional air-moving device 1.
Also in the embodiment of fig. 2, the stratified air above the false ceiling 14 is mixed into the interior room 100 by means of the recirculating interior air flow created by the axial fan 30 of the air moving device 1, according to the arrow circuit F in fig. 2.
With reference to all embodiments, the mixing of the internal air generated by the at least one blowing device 1 through the openings 18 can be uniformTemperature T of the interior room 100 is balanced A [℃]And energy consumption is limited by using energy stored in the upper volume above the false ceiling 20 or in the air stratified in the air chamber 20.
The subject matter of the present invention is more advantageous also because it allows the use of a simpler and lighter radiating panel 12 without the need for an insulating layer on the opposite side to the side facing the interior room 100, or advantageously allows the replacement of the insulating layer with an insulating layer.
With particular reference to fig. 3, in a further alternative embodiment of the air supply device 1 and of the radiant ceiling thermal system 10 as subject of the invention, the internal volume or air chamber 20 can advantageously be realized inside the plurality of radiant panels 12 forming the ceiling 14, arranged between the exposed surfaces in contact with the heat transfer fluid duct 15 and the insulating layer 42.
In this particular embodiment, the air supply device 1 may have the size and structure of a conventional radiant panel 12, which conventional radiant panel 12 comprises pipes 15 and hydraulic connections to other radiant panels 12, so as to be integrated into the structure of the radiant surface or false ceiling 14.
The air blowing device 1 may further comprise an insulating layer 42, which insulating layer 42 is arranged in contact with or opposite to the portion containing the duct 15, the inner volume or air chamber being located between the duct and the insulating layer 42, as shown in the example in fig. 3.
This embodiment is advantageously applicable to installations where the upper volume or plenum 20 is of a size that is too large to achieve efficient recirculation flow of the interior air.
In this case, the air blowing device 1 delivers air sucked from the interior room 100 into the upper volume or air chamber 20 disposed between the duct 15 of the pseudo ceiling 14 and the insulating layer 42, and then returns it into the interior room. The recirculating gas flow, shown in fig. 3 with arrow loop F, also allows for the collection of stratified thermal (or refrigeration) energy stored in the upper volume or plenum 20.
This solution allows for a temperature T of the interior room 100 in addition to A [℃]In addition to uniformity, the saving is also achieved by avoiding mixing of the internal air of the room in very high ceilings or vaultsIt is possible to also allow the use of an insulating layer 42 and a less thick insulating surface 44, thus advantageously allowing the addition of e.g. other sound insulation layers, while maintaining a compact radiation panel size 12.
Managing the speed of the fan 30 of the blowing device 1 by means of an electrical or electronic system allows to realize a hybrid system that can be controlled manually or automatically by means of the desired operating logic.
The above operational considerations, which are made by considering the embodiment of the radiant ceiling heating system 10 under the exemplary start-up conditions shown in fig. 5, in the case of a conventional radiant system operating in a heating mode, are obviously applicable by those skilled in the art also considering the exemplary start-up conditions as shown in fig. 6 in the case of a conventional radiant system operating in a cooling mode.
It will be apparent to those skilled in the art that in the cooling mode of operation, the radiation system 10 as subject of the present invention further comprises a dehumidification device for reducing the air humidity level in the interior room 100.
From the above, the advantages achieved by the air supply device 1 and the radiant ceiling heating system 10 as subject of the invention are evident.
The air supply device and the radiant ceiling heating system 10, which are the subject of the invention, are particularly advantageous in that it allows to improve the comfort of life due to the mixing of the internal air of the room and to equalize the temperature of the internal room by avoiding air stratification at different temperatures and reducing the energy consumption.
The mixing enhances the already naturally occurring convection movement, expanding the convection movement to areas of the radiant ceiling heating system with high energy potential that would otherwise be less involved. The enhancement of the movement allows for improved convective heat transfer from the ceiling.
Another important advantage of the air moving device 1 and the radiant ceiling heating system 10 is to provide a simple and thin radiant panel for the user without the need for a layer having insulating characteristics or being replaced with an insulating layer or also having insulating characteristics.
Another advantage of radiant ceiling heating systems is that a user is provided with a radiant ceiling heating system 10, which radiant ceiling heating system 10 can even be easily integrated on pre-existing facilities with very high ceilings or vaults.
While the invention has been described above with particular reference to several preferred embodiments, which are presented for illustrative and non-limiting purposes, many modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, the present invention is intended to embrace all such modifications and variations as fall within the scope of the appended claims.

Claims (20)

1. An air supply device (1, 1') for a ceiling radiant heating system (10) of an interior room (100), comprising: a housing (2) having an inlet opening (3) and an outlet opening (4); and at least one fan (30) housed inside the housing (2) and configured to move an air flow between the inlet opening (3) and the outlet opening (4);
characterized in that the air supply device (1, 1') is configured and adapted to be arranged in an upper volume or plenum (20) of the interior room (100) above a false ceiling (14) of the radiation system (10), wherein the inlet opening (3) and outlet opening (4) are configured and adapted to be in fluid connection with the interior room (100) and the upper volume or plenum (20) in cooperation with at least two openings (18) of the false ceiling (14), such that the fan (30) is capable of generating an air flow mixed between the interior room (100) and the upper volume or plenum (20).
2. The air supply device (1, 1') according to claim 1, wherein the inlet opening (3) and the outlet opening (4) are formed on a surface of the housing (2) and adapted to define a linear or angular direction of air flow.
3. A blowing device (1, 1') according to claim 1, wherein said inlet opening (3) and outlet opening (4) are provided with connection means, such as bends or connecting pipes, to an opening (18) of said ceiling (14).
4. A blowing device (1, 1') according to claim 1, comprising an air flow diverting and conveying device (5) at said inlet opening (3) and outlet opening (4), said air flow diverting and conveying device (5) being selected from the group comprising a blade, a conveyor, a plurality of slits formed directly in said housing (2).
5. A blowing device (1, 1') according to claim 1, comprising a filter element (6) adapted to remove dust and particles present in the air.
6. A blowing device (1, 1') according to claim 1, comprising an air disinfection device (7).
7. Air supply device (1, 1') according to claim 1, comprising a layer (8) of thermo-acoustic insulating or sound absorbing insulating material arranged inside or outside the housing (2).
8. A radiant ceiling heating system (10) for heating and cooling of an interior room (100), comprising:
one or more radiant panels (12) connectable together to form a radiant false ceiling (14);
-an upper volume or air chamber (20) of the interior room (100);
wherein the false ceiling (14) is provided with at least two openings (18), the at least two openings (18) being adapted to place the interior room (100) in fluid connection with the upper volume or plenum (20);
characterized in that it comprises at least one air-blowing device (1, 1 ') according to at least one of claims 1 to 7, said air-blowing device (1, 1 ') being arranged above said false ceiling (14) between said interior room (100) and said upper volume or plenum (20), said air-blowing device (1, 1 ') being adapted to circulate air in such a way as to mix said interior air in a circulating manner through said opening (18).
9. The radiant ceiling heating system (10) according to claim 8, wherein said at least two openings (18) are formed directly on two or more radiant panels (12).
10. The radiant ceiling heating system (10) according to claim 8, wherein said at least two openings (18) are defined by an absence or array break of radiant panels (12) on said false ceiling (14).
11. Radiant ceiling heating system (10) according to claim 8, wherein the at least one circulation air supply device (1, 1') is arranged with an inlet opening (3) or an outlet opening (4) at the at least two openings (18) and is configured in this way to move inlet and outlet internal air into the upper volume or plenum (20).
12. The radiant ceiling heating system (10) according to claim 8, comprising a support structure (16) of the false ceiling (14), the support structure (16) being adapted to secure the panel to a load-bearing surface of the interior space (100) and in this way configured to define a vertical height of the volume or plenum (20).
13. The radiant ceiling heating system (10) according to claim 12, wherein the support structure (16) is provided by a rigid frame of radiant panels (12), the radiant panels (12) being connected to each other and to a surface of an upper plate (102) or a wall of an interior room (100).
14. The radiant ceiling heating system (10) according to claim 12, wherein said support structure (16) is independent of said radiant panel (12) and is fixed to a load bearing structure of said interior room (100).
15. The radiant ceiling heating system (10) according to claim 8, further comprising an additional delay air supply (1') configured to maintain a flow of internal air circulating in the internal volume or plenum (20).
16. The radiant ceiling heating system (10) as set forth in claim 8, wherein said upper volume or plenum (20) is defined by and directly integrated within joined together radiant panels (12), said upper volume or plenum (20) being disposed between a heat carrier fluid conduit (15) support surface and a thermally insulating layer (42), said thermally insulating layer (42) being adapted to define a thermally insulating surface (44) in cooperation with a plurality of radiant panels (12).
17. The radiant ceiling heating system (10) according to any one of the preceding claims 8 to 16, wherein the radiant surface 14 is provided with a sound insulation layer or with a multilayer insulation with sound insulation features.
18. Radiant ceiling heating system (10) according to any of the preceding claims 8 to 17, wherein the at least one air supply device (1, 1') is fixed to the false ceiling (14) by an adjustable support frame so as to direct the flow of internal air or is placed in cooperation with a conveying element configured to direct the flow of internal air.
19. Radiant ceiling heating system (10) according to any of the preceding claims 8 to 18, comprising a fan control system (30) of the at least one air supply device (1, 1') controlled by a logic unit for continuous or intermittent operation.
20. The radiant ceiling heating system (10) according to any one of the preceding claims 8 to 19, wherein the false ceiling (14) having an exposed surface in direct contact with the interior room (100) comprises a smooth or microporous finish and can be made of metallic material, plasterboard or other compatible building material.
CN202280039683.4A 2021-07-09 2022-07-05 Air supply device with internal air mixing and radiant ceiling heating system Pending CN117425799A (en)

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IT202100018194 2021-07-09
IT102021000018194 2021-07-09
PCT/IB2022/056199 WO2023281390A1 (en) 2021-07-09 2022-07-05 Aeraulic device and radiant ceiling thermal system with internal air mixing

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Publication number Priority date Publication date Assignee Title
AU2010201383B9 (en) * 2009-04-13 2011-06-02 Kimura Kohki Co., Ltd. Heating and cooling unit, and heating and cooling apparatus
DE102011108090A1 (en) * 2011-07-19 2013-01-24 Jochen Renz Cooling system for cooling ceiling in e.g. group office, has thermostat-controlled fan for guiding hot air of room to be cooled over surface of cooling mass storage, and insulator and/or partial insulator arranged opposite to mass storage
CN105756256B (en) * 2016-05-09 2018-08-24 浙江风尚建材股份有限公司 A kind of Integral ceiling with sterilizing function
EP3809053A1 (en) * 2019-10-18 2021-04-21 LTG Aktiengesellschaft Ceiling panel assembly and room

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