EP3293462B1 - Procédure de régulation d'un flux d'air dans une installation de conditionnement d'air et une installation relative - Google Patents

Procédure de régulation d'un flux d'air dans une installation de conditionnement d'air et une installation relative Download PDF

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Publication number
EP3293462B1
EP3293462B1 EP17193279.1A EP17193279A EP3293462B1 EP 3293462 B1 EP3293462 B1 EP 3293462B1 EP 17193279 A EP17193279 A EP 17193279A EP 3293462 B1 EP3293462 B1 EP 3293462B1
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Prior art keywords
air
plant
flow
pressure
diffuser
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German (de)
English (en)
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EP3293462A1 (fr
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Marco Zambolin
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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
    • 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
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/745—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity the air flow rate increasing with an increase of air-current or wind pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0236—Ducting arrangements with ducts including air distributors, e.g. air collecting boxes with at least three openings
    • 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
    • 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
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F2003/0446—Systems in which all treatment is given in the central station, i.e. all-air systems with a single air duct for transporting treated air from the central station to the rooms
    • 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
    • F24F2013/0608—Perforated ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/40—Pressure, e.g. wind pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/40—Damper positions, e.g. open or closed

Definitions

  • the present invention relates to a procedure for regulating an air flow in an air conditioning plant and a relative plant, used for actuating the procedure. Further, the present invention relates to a process for starting-up and bringing to normal operating state, in particular during the winter season in the heating phase, a plant for air conditioning and the relative plant used to actuate the procedure.
  • plants are known and widely used for air conditioning/treatment which include the use of one or more ventilators suitable for generating a pressure increase internally of a predetermined number of channels in turn able to convey the air to diffusion vents or also perforated diffuser elements in the form of channels with the aim of diffusing conditioned air into the area surrounding the air conditioning plant.
  • ventilators suitable for generating a pressure increase internally of a predetermined number of channels in turn able to convey the air to diffusion vents or also perforated diffuser elements in the form of channels with the aim of diffusing conditioned air into the area surrounding the air conditioning plant.
  • These plants are in general designed to condition, either by heating in the winter or cooling in the summer, even large spaces (such as those dedicated to fairs, salons, swimming pools, etc.).
  • One of the further problems is also to enable a simple and effective homogenisation of the ambient temperature in plant start-up conditions.
  • the times required for the environment to be climatised is substantially homogeneous (i.e. the difference in ground air temperature and that of the air close to coverage must be within acceptable limits) are in general quite long.
  • Document EP 224402 describes an air conditioning plant of the type briefly described above which comprises a compensated ring on which a predetermined number of ventilators are active, and which has a plurality of branches emerging from the compensated ring for diffusion of air.
  • This plant exhibits intercept organs at nodes which enable activating/de-activating part of the plant mainly for winger/summer functioning according to needs in terms of air to be diffused.
  • Document US 2003/064676 describes an apparatus for controlling ventilators having variable air flow.
  • the system is constituted by at least a proportionally-controlled variable-flow ventilator, integral and derivative by means of a controller connected to a control unit.
  • Static and flow pressure sensors are present along the delivery line, for detecting the functioning parameters of the device.
  • the plant includes a predetermined number of shutters operated by respective motors in turn commanded by the control unit.
  • the system is advantageous in the start-up conditions of the plant in which a PID control linked to combined flow and static pressure detections can be extremely advantageous.
  • This document provides no teaching relative to ground air draught generator procedures for reducing the transients of plant start-up and does not control the partialisation of the injection of conditioned air into the environment such as to increase or reduce the emission of volumes of air in portions upstream of the mobile shutters. Control is always effected such as to increase or reduce the air volume injected into the environment downstream of the partialising elements.
  • the technical aim at the base of the present invention is substantially to obviate the drawbacks and overcome the limitations of the prior art as briefly discussed.
  • a first aim of the invention is to enable regulating the air flow in an air conditioning plane in such a way as to be able to obtain the desired air flow per linear metre independently of design errors, plant mounting errors and/or unforeseen/unpredictable conditions of plant installation.
  • a further aim of the plant is to enable start-up and full normal operating condition with a rapid reduction of the dishomogeneity internally of the environment to be treated in a reasonably short time.
  • An additional aim is to obtain a more effective remixing of the air at the ground in such a way as to move the cool air that, typically present in the winter season, tends to remain at ground level, making the temperature-homogenising operation difficult.
  • a further auxiliary aim of the plant of the invention is to guarantee optimal plat functioning efficiency both in the initial transitory condition and in the normal functioning condition, guaranteeing the best start-up step of the plant even where the design conditions do not enable optimal positioning of the various components.
  • a further auxiliary aim of the described plant is to enable an automatic and independent a regulation as far as possible independent of human intervention and therefore to minimise possible delays, inefficiencies and errors of regulation of the plant.
  • a procedure for regulating an air flow in an air conditioning according to claim 1.
  • an air conditioning plant is disclosed according to claim 13.
  • the plant comprises, primarily, a predetermined number of air conditioning units 2 the main aim of which is to transfer energy in the form of an increase in air pressure to be diffused into the ambient in such a way as to enable diffusion thereof through the air conditioning plant.
  • the air conditioning units 2 can comprise ventilators able to generate the mentioned pressure increase and a corresponding air flow internally of the plant.
  • the ventilator or ventilators can be centrifugal and for some applications they can also be variable-flow.
  • the air treatment units 2 can also be provided with further devices suitable for thermally conditioning the air flow, cooling it or heating it according to the treatments needs of the ambient in which the plant is installed. With this aim, batteries of hot or cold water, or other solutions besides, can be present.
  • the variation of the air flow temperature internally of the channels can be commanded by means of a variation of the water temperature circulating in the batteries and interested by the flow which thermally conditions or, alternatively (or even in combination), by a variation of the air flow crossing, if present, variable-flow ventilators.
  • the conditioning unit 2 can comprise humidifiers, filters or like devices for climatising the air injected into the ambient.
  • the air conditioning unit is configured such as to enable transfer of the air to be diffused towards appropriate diffuser elements 4 described in the following by means of at least a transport channel 13 destined to place the air conditioning unit 2 with the diffusers 4 in fluid communication.
  • the transport channel 13 can exhibit different configurations and comprise elements or modules of various natures, in particular according to design requirements.
  • it can comprise appropriate air supply channels 8 by means of which the air treatment unit 2 can be placed in fluid connection with manifolds 3 that are part of the transport channel 13. In this way the air flow generated can be appropriately conveyed either internally of the manifold through one or more respective accesses 5 as illustrated in the accompanying figures (see figures from 16 to 22, for example).
  • Each air conditioning plant comprises, in general, at least a manifold 3 (even though in some extremely simplified embodiments the manifold could be absent, see for example figure 14 ).
  • each manifold 3 exhibits respective accesses 5 directly connected to the air conditioning unit 2, for example via the air supply channel 8.
  • figures 8 , 10 , 12 , 14 illustrate a single air conditioning unit 2 with respect air supply channels 8 which, through the access 5, send a flow of air to the manifold 3.
  • Figures 9 , 11 and 13 comprise at least two air conditioning units 2 with respective air supply channels 8 that, through the accesses 5, send the air flow into the manifold 3.
  • a single air treatment unit 2 can have two or more supply channels 8 which carry the flow to different points of the manifold 3, through various accesses 5 (see for example figure 19 ).
  • the flow generated by a single air conditioning unit 2 is shared in various air supply channels 8, being thus introduced internally of the manifold 3 in different positions.
  • the plant further comprises the above-mentioned diffuser elements 4 in fluid communication with the manifold 3 for diffusing the conditioned air into the environment.
  • a plurality of diffuser elements 4 are included, and in general a plurality of diffuser channels 4a, perforated such as to diffuse air into the ambient, generating an inductive effect on the air surrounding the channel.
  • the diffuser channels 4a exhibit a plurality of perforations 14 having diameters that can be different and appropriately arranged to move the ambient air by exploiting the high induction.
  • an air recall can be made of the air surrounding the diffuser with a recalled volume that can be of up to thirty times the volume of the air injected into the ambient by the diffuser element 4.
  • the diffuser channels 4a instead of simply diffusing the delivery air into the ambient, "launch" it towards the zone to be treated and thus use the delivery air to push and move the totality of the volume of the ambient air.
  • These diffuser channels are also known as impulse channels.
  • An impulse channel comprises a channel generally (though not necessarily) made of a fabric or metal, preferably circular, on which a particular perforation is applied, constituted by two types of perforation: smaller induction holes, which decide the quantity of ambient air to be mixed with the delivery air, and larger guide holes, which decide in which direction, at what speed and to which distance to convey the mass of ambient air pre-mixed by the induction holes.
  • linear load loss is limited, while the load loss localised at the perforations is of considerably greater entity.
  • the manifold 3 can be manufactured with a substantially constant section as the main load losses are on the perforations of the diffuser channels. In this situation neither the manifold 3 nor the perforated channel 4a will thus have a set main air flow direction.
  • a plurality of diffuser channels 4a are present, which branch distancingly from the manifold 3 such as to be able to reach various zones of the ambient to be conditioned, specially designed.
  • the air supply channel 8 which connects the air treatment unit 2 to the manifold 3 has respective closing means 9 which can selectively prevent a flow of air through the supply channel 8, particularly in the rest state of the air conditioning unit 2.
  • the above-mentioned closing means 9, which are generally defined by shutters, for example having opposite blades mobile between an open condition in which they allow the passage of air, to a closed condition in which the flow is blocked, are destined to prevent, in the shut-down state of the air conditioning unit 2, the air contained in the manifold 3 from flowing back through the supply channel 8 for example by setting in the fans in reverse motion to normal use motion, and also from leaking the flow energy into the environment.
  • partialising means 10 can be active on the manifold 3 or between the manifold 3 and the diffuser element 4 in such a way as, respectively, to partialise the flow of air in the manifold 3 or the air flow between the manifold 3 and the diffuser element 4.
  • the partialising means 10 can be suitably positioned in an intermediate position along the development axis of the diffuser element 4 when in the form of a diffuser channel 4a (see for example figures 10 , 12 , 13 , 14 and 15 ).
  • the partialising means 10 are further generally defined by appropriate shutters, for example having opposite blades, mobile between a maximum opening position in which they allow the flow of air in passage and a closed position in which they substantially block the air passage.
  • both the closing means 9 and the partialising means 10 are interposed in suitable sections of the respective channels and are generally motorized in order so that they can be remotely controlled , or even controlled automatically.
  • the plant may optionally be equipped also with respective nodes 11 each provided with at least two accesses (up to six accesses in all).
  • the nodes are constituted by prismatic box-like structures, such as cubic, in which each of the faces corresponds to a potential access 11a, 11b, 11c, 11d, 11e (see for example figure 23 ).
  • the node can be positioned in different parts of the air conditioning plant.
  • the node can be interposed between two consecutive tracts 3a, 3b of a manifold 3 such as to selectively interrupt the fluid connection between the two tracts.
  • the node can be positioned between a manifold 3 and a diffuser element 4 in such a way to be able to interrupt the communication between the two aforementioned components.
  • the node can be placed between the access channels 8 and the manifold 3 in such a way as to make the fluid communication between the two parts selective.
  • a node could be positioned at one or more intermediate portions of a diffuser channel 4a in such a way to be able intercept the flow of air totally or partially also only at certain tracts of a diffuser channel 4a.
  • Figure 23 illustrates a perspective view of a possible embodiment of one of the nodes 11.
  • the node exhibits an air access channel 8 superiorly arranged so to receive delivery from the air conditioning unit 2 through the access 11a.
  • the closing means 9 are present at the access surface 11a, which closing means 9 consist of a motorized shutter (see figure 24 ) having opposite blades; in particular an actuator can actuate the shutter between the two positions, open and closed.
  • the node schematically represented in figure 23 is then interposed along the manifold 3 and in particular between two consecutive tracts 3a and 3b, being able to intervene in order to close, using partialising means 10, also consisting of shutters with opposite blades, such as to selectively block the flow between the portions 3a and 3b.
  • Respective accesses 11c and 11e are also present on the node, having two diffuser channels 4a such that the fluid communication between the manifold 3 and the diffuser channels 4a can be interrupted when so required by use of the partialising means 10 constituted by shutters having opposite motorise blades ( figure 24 ).
  • Figure 24 shows, in cross-section along a vertical plane, the node shown schematically in figure 23 .
  • This section describes in detail the closing means 9 and the partialising means 10 interposed respectively between the access channel 8 and the manifold 3 and between the manifold 3 and the two diffusers 4a which branch off from the manifold 3.
  • Figure 7 schematically illustrates a more complex embodiment of an intersection zone of a plurality of conduits in which each node 11 can intercept and/or partialise the flow to and from the respective channels.
  • the plants of the present invention may alternatively (or in combination) also comprise diffuser elements 4 constituted by normal air vents 4b inletting into the ambient, for example of the type illustrated in figures 25 and 30 .
  • the diffuser elements 4 of known type and widely used in commerce are also referred to as terminal diffuser units 4b and comprise vents, nozzles and diffusers of various type which are neither induction nor impulse diffusers.
  • the terminal diffuser units 4b introduce air into the environment in a substantially localized way and the load loss thereat is generally low and comparable to the load loss per linear meter of the remaining parts of the plant.
  • figures 8 and 9 illustrate this type of plant in which the diffusion occurs at the terminal portions of the transport channels 13 where the above-mentioned vents 4b are located.
  • these vents can be suitably distributed along the whole development of the transport channel 13 and inject air into the environment where required by the design requisites.
  • plants of hybrid nature i.e. comprising both linear impulse channels 4a and terminal diffuser units 4b are configurable (see for example figure 30 ).
  • the partialising means 10 can assume embodiments that are different than those previously described.
  • they can take the form of a flow interrupting element 20, for example a sliding shutter as shown in the figure, or mobile between a non-operating condition in which it allows a passage flow towards the diffuser element 4b (transparent in the figure) and then the diffusion of air through the diffuser element, and a plurality of operating conditions in which the flow of air through the vent can be partialised up to being substantially stifled.
  • FIG. 26 A further different embodiment of the partialising means 10, in the form of flow interrupting elements 20 is shown in figures 26, 27a and 27b .
  • the flow interrupting element 20 is substantially constituted by a single element, for example circular or more in detail having a complementary shape to the section of the channel (circular in the illustrated embodiment), for example mobile in rotation with respect to a rotation axis 24 between a non-operating condition, in which it does not intercept the flow of air and allows the passage between two successive tracts of a diffuser channel 4a and a closed operating condition, in which it interrupts the passage of fluid between the two tracts of the diffuser channel in which it is interposed.
  • This type of solution may be adopted for channels of small size/diameter.
  • FIG. 27a and 27b A more advantageous alternative embodiment is illustrated schematically in figures 27a and 27b , with the flow interrupting element 20 respectively in the open condition in which it allows air flow passage without substantial interference and in a closed condition in which it substantially intercepts the flow.
  • This embodiment embraces the concept of a shutter having opposite blades, of the type previously described, whereby a rotation (clockwise or anticlockwise depending on the position) of each blade relative to its axis of development 24 involves the opening/closing of the shutter.
  • the conditioning plant as described can also include respective actuators 25 (shown only in figure 30 but possibly present for one or more - and possibly for each - of the flow interrupting elements) for moving the flow interrupting element 20 between the non-operating state and the operating state and vice versa, in particular by means of an automatic movement.
  • the system can comprise at least a sensor 22 of a flow parameter linked to the flow rate (and possibly a plurality of such sensors in appropriate positions of the plant with the aim of detecting an operating value of the parameter of interest internally of the plant itself then used for the regulating that will be described below).
  • the sensor 22 can be a flow sensor or, more commonly, a pressure sensor 22 (and possibly a plurality of such sensors in appropriate positions of the system in order to detect an operating pressure in the plant used for the regulating that will be described below).
  • a pressure sensor that is cheaper and easier to manage compared to other sensors, it being understood, however, that a different sensor can be used instead (or in combination).
  • the pressure sensor 22 is illustrated schematically in the figures; in some of the figures they are together with a control unit or CPU to which it can be directly connected. It is understood, however, that the pressure sensor can be present in each of the plants illustrated in the figures, including in different positions or in a greater/lesser number depending on the design and control needs described below. In general, however, the pressure sensor 22 (or pressure sensors if more than one) are positioned in a first portion 100 of the system 1 that is located between the flow interrupting element 20 (or the flow interrupting elements 20) and the air conditioning unit 2 (or air conditioning units 2).
  • the main interest is in knowing the pressure in the active zones (not partialised) of the plant. Obviously there is no bar to detecting the pressure in different areas of the plant (i.e. a second portion 200 of the plant) in the event of further operational needs.
  • the air conditioning plant the components of which have been described above can give rise to a plurality of different configurations characterized by their excellent adaptability to the environment to be treated, thanks to advantageous features of which some will be detailed below.
  • FIG 1 illustrates a plant with three diffuser channels 4a flanked and parallel to one another, and the two lateral channels are impulse channels designed to introduce air into an environment with high inductive effect, while the centre channel has the task of injecting a greater or lesser quantity of air flow into the environment, as required.
  • the two lateral channels 4a operate by induction, recalling and mixing large volumes of ambient air, and are in general provided with perforations 14 arranged along the longitudinal development angularly facing downwards (i.e. with launch angle inclined downwards), respectively to the left and to the right (see figure 2 ); vice versa the central channel with perforations 14 facing upwards (see figure 2 ) does not generally operate by induction effect but serves to discharge more or less air into the room, if necessary.
  • the CPU receives the pressure reading signal (or flow rate if applicable) from the sensor 22 and possibly as a function thereof adjusts the partialising of the flow in each of the three channels 4a (mainly in the central channel).
  • Figure 3 illustrates an embodiment with only two channels 4a which operate by impulse alongside one another (obviously the diffuser channels 4a are not shown in their entirety, but only two modules are represented for each channel - it is understood that in addition to being present in a consecutively aligned greater number, the final modules are closed by a respective bottom).
  • Figure 4 shows in section view the node zone 11 from where the diffuser channels develop, such as to illustrate a possible positioning of the flow interrupting elements 20 which can intervene to partialise the air flow in each of the two channels 4a.
  • Figures 6a and 6b schematically illustrate an alternative embodiment of the system of figure 4 , in which the flow interrupting elements 20 are positioned along the development of the channel in the vicinity of the closed end 17 of the respective speakers 4a and not in the inlet zone 16 (or not only in this area).
  • Figure 6a shows a situation in which both intermediate flow interrupting elements 20 are open and allow air passage with a consequent inductive effect throughout the development of the channel 4a.
  • Figure 6b shows a situation in which both flow interrupting elements 20 are closed and intercept the air flow with a consequent inductive effect obtained exclusively along the initial development 21 of the channel, while the flow is substantially reduced (or zeroed) at the terminal region 18.
  • the active portion of the channel will be at higher pressure with consequent increase in the launch of air from the active perforations 14.
  • Figures 8 and 9 show some examples of plants provided with terminal diffusion units 4b in which various flow interrupting elements 20 are shown positioned in various parts of the circuit.
  • Figure 8 illustrates the flow interrupting elements 20 positioned a the terminal diffusion units 4b; the flow interrupting elements 20 might be shutters having opposite blades or might also assume the configuration shown in figure 25 , or could be sliding hatches closing the output channel of the delivery air.
  • Figure 9 shows that the flow interrupting elements 20 can also be positioned at the entrance of the secondary branching channels, or in an intermediate or even an initial position in the tapered channels.
  • Figures 10 to 15 instead show solutions that use impulse linear diffuser channels 4a.
  • the various embodiments show how the flow interrupting elements 20 could be positioned at the entrance of the diffuser channel or in an intermediate position, such as to intercept the flow to all or only to certain diffuser channels 4a.
  • member flow interrupting elements 20 can exclude a portion of the plant connected at two sides to different treatment units, separating a first portion 100 from an isolated second portion 200 of the plant.
  • Figure 16 illustrates a plant in which the manifold 3 is arranged centrally with respect to an environment 12 to be treated.
  • Three air conditioning units 2 are connected to the collector, in three positions along the axial development of the manifold, each unit 2 having its own air supply channel 8 and its own closing shutter 9.
  • the plenum manifold 3 generally made of a metal material and free of perforations or air diffusion vents (except, in certain plants, anti-condensation perforations), exhibits a same cross section along its entire development. It should be noted that in systems where the load losses are at the diffusion perforations arranged on the diffuser channels it is not necessary to perform any dynamic recovery with narrowings of section in the manifold 3 and/or the diffusion channels 4a.
  • a node 11 of the previously-described type is present at each branch of the manifold 3 of a diffuser channel 4a.
  • the nodes 11 represented will exhibit at least partialising means 10 at the connection between each diffuser channel 4a and the manifold 3.
  • the nodes of shutters will be provided with opposite blades also at contiguous portions of the manifold in selected areas, so as to stop the flow in predetermined zones inside the manifold.
  • the partialising means 10 in particular in the form of elements of flow interrupting elements 20 at intermediate tracts of one or more of each of the diffuser channels 4a.
  • the flow interrupting elements 20 can be positioned at a distance of about 2/3 of the overall length of the diffuser channel 4a compared to the respective node 11.
  • the air conditioning plant at full capacity, i.e. with all three air conditioning units 2 in operation and the maximum air flow per linear metre in the plant itself.
  • the condition could be that of a conditioning plant when conditioning an environment in the summer season.
  • the illustrated plant could function as a heating system for the environment.
  • each channel 8 which connects the plenum with the manifold 3 to the shut down conditioning unit 2 is closed off by closing means 9 in order to prevent dispersion of the conditioned air through the deactivated conditioning unit. It is also possible to selectively intervene on the means 10 such as to determine whether to send the conditioned air flow only into some of the eight diffuser channels 4a illustrated.
  • FIG 17 illustrates a different type of system with plenum manifold 3 arranged on only one side of the environment 12 to be treated.
  • the partialising means 10, particularly in the form of the flow interrupting elements 20, can be positioned at any position along the channel development axis 4a, preferentially at a closed second end 17 of the diffuser channels 4a.
  • the system described could be designed with only two air conditioning units 2 providing further accesses 5 in order to be able to reach the other following units.
  • An initial requirement could in fact be to create an air conditioning plant only to heat an environment that requires a certain amount of air volume treated per unit of time. Should it be required to include, in the plant, also a conditioning function, it would probably be necessary to include a greater air flow; therefore two further units could be added, all connected to the same plenum manifold 3 as described above.
  • FIG. 18 describes a further embodiment, in which there are two plenum manifolds, one for each longer side of the environment 12 to be treated, each plenum manifold 3 provided with its own air treatment unit 2 in fluid communication and the respective nodes 11 at each connection of the plenum manifold 3 with the diffuser 4.
  • the diffuser channels connect a plenum manifold 3 to another defining, in effect, a multi-connected structure.
  • the treatment plant shown in figure 4 is self-balanced as it substantially does not generate air flows with specific directions internally of the plant; this is due to the fact that the load loss of the conduits have a much lower value that the load losses localised at the diffuser perforations present on the diffuser channels 4a.
  • the use of the plenum collector 3 as described enables arranging the treatment unit 2, but also the manifolds 3, in the most advantageous positions taking into account the geometry of the structure and the environment to be conditioned.
  • Figures 19 , 20 , 21 , 22 illustrate an alternative configuration of the system that uses a self-compensated manifold ring 3 (or a plurality of rings).
  • Figure 19 illustrates a manifold ring 7 which follows the perimeter of the environment 12 to be conditioned. Note in particular that there is a plurality of air conditioning units 2 and that one of them 2a is connected to the plenum manifold 3 at different accesses 5 via respective supply channels 8 which branch off from the treatment unit 2.
  • the section of the manifold channel can be reduced.
  • a flow of 30000 m 3 /h is necessary, if it were injected through a single access 5 in a manifold ring, this would require a section of the manifold ring itself to be able to convey and dispose of 15000 m 3 of air/hour for each segment (left and right) of the manifold ring facing the access 5.
  • the flow even sub-dividing air over several air access channels 8 at the flow rate of an air conditioning unit 2 it is clear that in the access zones they are introduced in smaller quantities of m 3 of air per hour which thus require smaller transport sections. This involves the possibility of having a section of the manifold ring with smaller dimensions, resulting in an improved aesthetic impact and a considerable reduction in costs.
  • the collector ring 3 can continuously follow the geometry of the environment to be treated, without the air treatment system suffering from the point of view of fluid dynamics from these constraints.
  • the collector ring 3 performs mainly the function of a diffuser element 4 (or diffuser channel 4a).
  • a diffuser element 4 or diffuser channel 4a.
  • changes can also be made to the launch angle by rotating the sections of the channel that define the ring manifold 7 about the axis of longitudinal development. It is also possible to intervene by modifying the active length of the channel, for example using two interrupting elements of the flow passage 20 that separate a second portion 200 of the plant which can be disabled depending on needs.
  • the plant of figure 20 substantially corresponds to the one of figure 19 , but has four nodes located at the corners of the environment to be treated.
  • the use of these nodes 11, and in particular of the respective partialising means 10, enables obtaining a partialised ring manifold 3 in which, in addition to functioning at full capacity and with the ring open it is possible to obtain, for example, a functioning only on two opposite sides.
  • shutting down the air conditioning unit 2 not directly involved and closing the fluid connection at the nodes 11 in fact two plants are obtained that are smaller than on the opposite sides of the room, each provided with a manifold supplied by its own conditioning unit 2, which can launch air towards the environment.
  • a plurality of diffuser, or exhaust, channels 4a is also included, which interconnect opposite portions of the manifold ring.
  • a conditioning unit 2a can be associated on the diffuser channels 6 which can for example partialise the flow generated thereby onto each of the connecting channels.
  • the plant of figure 22 illustrates a solution comprising two manifold rings 7 connected to one another by appropriate nodes 11 interposed and supplied by two air conditioning units 2.
  • figure 28 shows an air conditioning system for conditioning environments on two different floors of a building by means of a single air conditioning unit 2 which partialises its flow on the respective rings 3 on the upper floor and on the lower floor. Also, by suitably orientating the launch angle of the flow is possible to direct, also depending on the season and the type of conditioning to be provided, the flow of conditioned air to appropriate areas of the environment to be conditioned.
  • At least an interrupting element of the flow passage 20 for example a shutter, is movable between a first operative condition in which allows a passage of fluid towards the diffusion elements 4 and a second operating condition in which it intercepts, substantially reducing, in comparison to the first operating condition, the passage of air towards at least one of the diffuser elements 4.
  • the flow interrupting element 20 is interposed between a first portion 100 of the plant directly in fluid connection with at least an air conditioning unit 2 and a second portion 200 of the system and intercepts the flow of air coming from the air conditioning unit 2 and directed towards the second portion 200 of the system.
  • the second portion 200 of the system is the one defined downstream of the flow interrupting element 20 located at the central channel.
  • the second portion 200 of the plant can be the one defined downstream of the flow interrupting elements 20 seats at the terminal zones of the two channels (as shown) or even the one defined downstream of the flow interrupting element 20 positioned on one or the other channel according to requirements.
  • 20 can be any of the branches of the ring depending on which flow interrupting elements 20 are activated.
  • the second portion 200 of the system is one in which it is possible to exclude part of the diffusers 4 affected by a lower air flow rate per linear meter (by closing some of the flow interrupting elements 20) compared to that of normal plant operation.
  • the flow rate in the second portions of the system 200 will be generally reduced, but it could also be substantially zero.
  • the pressure or flow rate sensor 22 detects an operating pressure internal of the plant and is in general positioned at the first portion 100 of the plant such as to detect a pressure of an operating flow rate of the plant directly in fluid connection with the air treatment unit 2.
  • a predetermined number of sensors 22 can be present for each plant of which some are also placed in the second portions of the plant (possibly only in certain configurations of the system itself - see for example figure 20 ).
  • the procedure involves the following general steps: activating the treatment unit 2 to generate a flow of air to be diffused internally of the transport channel 13 and the diffusers 4; detecting, via the sensor 22, the pressure or flow rate generated inside the plant, in general in the first portion 100 which is the active portion, i.e.
  • the step of moving the flow interrupting element 20 is carried out as a function of the pressure or flow detection in the first portion 100 of the plant directly in fluid connection with the air handling unit 2, the air flow in the first portion 100 of the system is regulated.
  • the operator will read the measured value from the sensor and adjust the flow interrupting element 20 to bring the real value read by the sensor 22 (flow or preferably pressure) to a corresponding desired value.
  • the manual adjustment will be made by acting on a lever mechanism or, in systems with more automation, via an actuator 25 capable of moving the flow interrupting element passage 20 between the first operating condition and the second operating condition and vice versa; in this case the movement of the flow interrupting element 20 is a sub-step of automatic movement via the manually-commanded actuator 25.
  • the process of plant automation will be in general more radical than described above: in fact, via the control unit CPU receiving in input the pressure or flow sensor signal 22, the CPU will be able to command the movement of the actuator 25 to regulate the flow of air to the first portion 100 of the system. In this situation there will be a memory containing at least a desired pressure value and/or a desired air flow rate value of per linear metre to be obtained in the first portion of the plant.
  • the control unit commands the movement of the actuator such as to regulate the air flow to the first portion 100 of the plant according to the value received from the sensor 22 and the desired value of air flow rate per linear metre; in particular the desired air flow rate per linear meter will be associated with a corresponding predetermined pressure value and the control unit CPU will move the flow interrupting element 20 between the first operating condition and the second operating condition or vice versa to determine, inside the first active portion 100 of the system, a real pressure or flow rate variation detected by the sensor 22 and bring the real pressure or actual air flow detected to the desired rate per linear metre or the predetermined pressure value to which with the desired air flow rate per linear metre is associated.
  • the movement of the flow interrupting element 20 therefore enables the control unit to regulate the air flow at the first portion 100 of the system.
  • the selection of a desired value of air flow rate per linear metre and the movement of the flow interrupting element 20 into a position between the first and the second operating condition as a result of the detection of pressure or flow rate carried out by the sensor 22 can at least partially exclude at least one diffuser element 4 and bring the real value of air flow rate per linear metre in the first portion of the plant to values close to or coinciding with the desired value of air flow rate per linear metre.
  • the step of selecting the desired value of air flow rate per linear meter can be driven by the operation: the system setting during the start-up step, the need to exclude part of the plant (summer to winter operation) without generating draughts at ground level, the calibration of the system to correct errors or installation problems and put the system into optimum operating condition.
  • the step of selecting the desired value of air flow rate per linear metre comprises determining a desired value of air flow rate per linear metre when setting-up the system for heating an ambient, for example in winter, and/or a sub-step of determining a desired value of air flow rate per design linear metre such as not to generate ground draughts and to achieve air diffusion by inductive effect, and/or a sub-step of determining a desired value of air flow rate per linear metre in operating state by means of one or more excluded diffuser elements 4 maintaining an air flow rate per linear metre such as not to generate ground draughts and to obtain an air diffusion by inductive effect in the non-excluded first portion of the plant and a further substep of selecting one of the desired values.
  • the step of generating an increase of pressure in the air to be diffused inside the plant with respect to the pressure of normal operation is obtained by at least partially excluding one or more diffuser elements 4.
  • the excluded diffuser elements 4 substantially do not diffuse air flow into the environment, or diffuse less than during normal operation.
  • the increase in pressure results in a substantial increase in the launch of the non-excluded diffuser elements 4 (compare figures 6a and 6b for example); optionally the increase in the launch of the non-excluded diffusers 4 generates currents near the ground in the environment to be conditioned, and moves the air contained therein.
  • the diffuser channel 4a affected by the exclusion of a portion has a first end 16 directly in fluid connection with the transport channel 13 and a closed second end 17.
  • the exclusion, at least partial, of one or more of the diffuser channels is achieved via an at least partial interruption of the fluid communication between the transport channel 13 and an end portion 18 of the diffuser channel 4a (also defining said second portion 200 of the plant) located at the second closed end 17; the air flow in the terminal portion 18 of the diffuser channel 4a is reduced as a result of the at least partial interruption of communication with the transport channel 13 (see, for example the comparison of figures 6a and 6b ).
  • the diffuser channel 4a affected by the exclusion has a first end 16 directly in fluid connection with the channelling of transport 13 and a second end 17 directly in fluid connection with a further transport channel 13; the exclusion, at least partial, of one or more of the diffuser channels 4a occurs by at least partial interruption of the fluid communication between a central portion 19 of the diffuser channel 4 (defining said second portion of the plant) interposed between the first and second ends 16, 17.
  • the air flow in the central portion 19 of the channel undergoes a change as a result of the at least partial interruption of communication with the transport channels 13.
  • the flow interrupting element 20 is interposed between an initial portion 21, defined by at least 40% of the total volume of the diffuser channel 4a, and in particular by at least 60%, and the terminal portion 18 of the diffuser channel 4a.
  • the step of at least partial exclusion entails an increase of the pressure in the initial portion 21 of the diffuser channel 4a, and a corresponding increase in the launch of air from the diffusion perforations 14 in the initial portion 21 of the diffuser channel 4a.
  • the exclusion is a regulatable exclusion step for obtaining different pressure variation values, positive or negative.
  • the procedure further comprises the steps of providing at least an optimum pressure value or an optimum range of values for the conditioning system set-up and regulating the at least partial exclusion of one or more diffuser elements 4 as a function of the pressure detection performed by the sensor 22, such as to bring the operating pressure of the system to converge to the optimal pressure value or optimal range of pressure values.
  • the step of regulating the exclusion includes a movement of at least one flow interrupting element 20 from the first operating condition to the second operating condition such as to vary the diffusion of the exiting air from the diffuser element 4 in a controlled manner.
  • the pressure can be detected by the sensor 22 and the flow interrupting element 20 can be regulated to bring the supply air to the terminal diffuser units 4b so as to restore the desired flow rate value per linear metre at the induction channel in order to have the desired inductive effect without ground draughts.
  • the plant of figure 31 will operate with a greater or smaller opening of the central channel, again to restore the desired flow rate value per linear metre at the side induction channels and have the desired inductive effect without ground draughts.
  • the channel that takes the delivery air to the terminal diffuser units 4b is completely deactivated and the variable-flow ventilator 2 air flow is regulated by a manual regulating command 26 such as to limit the air flow in the plant and restore the desired flow rate per linear metre of the induction channel.
  • one of the two side channels can be closed and the excess air flow can be injected into the ambient through the central channel, thus restoring the desired flow rate per linear metre at the lateral induction channel that is still active.
  • the plant can also be self-regulating. Assuming the presence of an ambient temperature sensor and a corresponding thermostat 27 ( figure 31 ), the a corresponding desired temperature will be set on the thermostat. When the environment reaches this temperature, the system tends to maintain it, or in case of variation, the treatment unit 2 variable flow reduces/increases the air flow rate inside the plant as appropriate. If no adjustment ensues, there will be a reduction in plant performance due to the presence of ground draughts, or because of the poor inductive effect caused.
  • the sensor 22 will detect the new pressure/flow rate value and the CPU, after having received this value and compared it with the desired value, will move the shutter of the central channel in order to increase or reduce the passage of air in the channel and thus restore the desired flow rate value per linear metre in the induction channels 4a.
  • the process is advantageous for the system start-up, or for reducing the temperature homogenization times, i.e. to ensure that the temperature differences between the zones near the ground and those in the vicinity of the ceiling are within close limits;
  • the procedure comprises the general steps of operating the conditioning unit/units 2 in such a way as to generate the above-mentioned increase of pressure in the air to be diffused internally of the transport channel 13 and to all the diffusers 4.
  • This increase of pressure is what would occur in conditions of normal use of the plant in order to be able to send a quantity of air into the ambient sufficient to cool it without generating any type of ground draught.
  • a ground draught is considered to be an air velocity perceivable by the user of greater than 0.25 m/s.
  • a further increase of pressure is generated in the air to be diffused.
  • This further increase in pressure is obtained by at least partially excluding one or more diffuser elements 4.
  • the excluded diffuser elements 4 do not diffuse air, or diffuse it to a lesser extent compared to the full operating state.
  • the pressure increase leads to a substantial increase in the launch of the non-excluded diffusers 4 which generates ground draughts into the ambient to be conditioned, and effectively moves the air present therein.
  • the correct dimensioning of the plant takes into account the fact that the ground draughts are absolutely to be avoided so as not to annoy the user while in the environment.
  • the exclusion (preceding, simultaneous or subsequent to the start-up stage of the plant) of some diffuser elements 4 while maintaining the operating conditions of the air conditioning units 2 unchanged (in particular in terms of generated pressure leaps or generated flow rate) bring about the further pressure increase which in turn is reflected in the air emitted through the diffuser elements and in particular through the diffusion perforations 14 of the diffuser channel 4a, with output velocities that are greater, such as to generate ground draughts and the relative turbulence which move the cold air near the ground level.
  • the homogenization of the temperature in the heating phase is much faster than with conventional systems.
  • the above-mentioned effect can be obtained by reducing (or possibly interrupting) the flow of air directed to the central channel by intervening on the respective flow interrupting element 20.
  • the procedure comprises intervening at a predetermined number of terminal diffuser units 4b.
  • the mentioned further increase in pressure is guaranteed, and with it the injection through the active vents 4b of hot air with such a velocity as to move the cold air in proximity of the ground.
  • flow interrupting elements 20 can be used, for shutters, which can act at portions of channel of the transport channel 13 (for example of the type illustrated in figures 26, 27a and 27b ).
  • flow interrupting elements 20 can be used of the type illustrated in figure 25 , able to intervene directly on the vent 4b by moving a hatch able to intervene directly on the vent 4b by moving a hatch acting on the opening, which enables the air to reach the vent.
  • the flow interrupting element 20 can be positioned between an inoperative position in which the entire passage opening is left substantially free to a condition of complete closure, in which basically the diffuser element 4, in particular the vent terminal diffuser unit 4a, is excluded.
  • Even more interesting is the process that uses diffuser channels 4a.
  • respective portions of the diffuser channel 4a can be isolated, effectively interrupting the emission of air from the portions.
  • the active length of the diffuser channel is varied.
  • the throttling means 10 constituted by the aforementioned flow interrupting element 20 are positioned in correspondence with an intermediate area of the diffuser channel 4a.
  • the exclusion of one or more of the diffuser channels 4a takes place by means of an at least partial interruption of the fluid communication between the terminal portion 18 of the diffuser channel 8 and the rest of the plant.
  • the closed terminal portion 18 of the channel is deactivated and excluded during the step of start-up of the plant in such a way that the remaining part of the diffuser channel 4a can enter with a greater hot air launch into the ambient, therefore moving the cold air near the ground.
  • a central portion 19 of the diffuser channel 4a can be excluded.
  • a combination of the two methods described briefly above may also be used. It should be noted, in this respect, that the embodiments of the figures alternatively illustrate one or the other of the two procedures, but they can be combined in any way to achieve the desired effects.
  • the flow interrupting element 20 can be moved from a non-operative condition in which it does not intercept the flow to an operating condition, substantially closed, in which it prevents substantial air passages towards the excluded portion of the diffuser channel 4a.
  • the procedure for moving the ambient air during plant start-up state can also include the steps of detecting, via the pressure sensor 22, the further pressure increase and regulating the at least partial exclusion of one or most of the diffuser elements 4 as a function of the pressure detection performed by the sensor 22.
  • the exclusion step is a regulatable exclusion step for obtaining various pressure increase values.
  • a control unit 23 can be set so as to memorise an optimal pressure value of or a range of optimal pressures values so that the plant can be set at working mode.
  • an optimum pressure can be derived for the start-up to working state that can be obtained by regulating the opening/closing of the fluid retaining elements 20.
  • the pressure sensor provides the operating pressure internally of the plant and the control unit that receives the input can automatically regulate the flow retaining element 20 (or the elements 20) so that the operating pressure inside the portions not excluded from the plant diffusion can tend towards the optimal value or otherwise be included in a range considered optimal for the start-up.
  • the control unit that receives the input can automatically regulate the flow retaining element 20 (or the elements 20) so that the operating pressure inside the portions not excluded from the plant diffusion can tend towards the optimal value or otherwise be included in a range considered optimal for the start-up.
  • the flow retaining element 20 is positioned such as to define a terminal portion occupying at most 60% of the total volume of the diffuser channel 4a and in particular at most 40%.
  • the flow treating element 20 is positioned, as close as possible, such that the complete closure thereof leads to the desired further increase of pressure to optimal for the movement of the ground air; in any case the retro-activated system with the pressure sensor enables reaching the optimal pressure value for this operation automatically and independently of any design errors and/or modifications in plant operational conditions.
  • Figure 28 illustrates a detail of a plant in normal operating conditions in which ground draughts are not generated.
  • Figure 29 illustrates the same plant during start-up in which some portions thereof are excluded and the launch obtained by means of the active diffuser elements 4 is such as to generate ground draughts and guarantee a better mixing and a more rapid homogenisation of the air.
  • the invention provides important advantages.
  • the procedure of bringing the plant up to working conditions/start-up enables minimising the times necessary during heating of an environment such as to obtain a homogenisation of the temperatures.
  • the plant is able to automatically control, or control in feedback, the generation of optimal conditions for the movement of the air at ground level in the critical stages.
  • the procedure of the invention does not require special technical measures or mechanisms which are not already available to a technical expert in the sector.

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Claims (13)

  1. Procédure de régulation d'un écoulement d'air dans une installation de conditionnement d'air, la procédure étant une procédure de réglage de l'installation de conditionnement d'air, l'installation comprenant :
    - au moins une unité de conditionnement d'air (2) convenant pour la génération d'un écoulement d'air ;
    - une pluralité d'éléments diffuseurs (4) pour diffuser l'air conditionné dans l'environnement ;
    - au moins un canal de transport (13) pour transférer l'air à diffuser depuis l'unité de conditionnement (2) vers les éléments diffuseurs (4) ;
    - au moins un élément d'interruption d'écoulement (20) mobile entre un premier état de fonctionnement dans lequel l'élément d'interruption d'écoulement permet le passage de liquide vers les éléments diffuseurs (4) et un second état de fonctionnement dans lequel l'élément d'interruption d'écoulement intercepte sensiblement l'air, réduisant, par rapport au premier état de fonctionnement, le passage de l'air vers au moins l'un des éléments diffuseurs (4), l'élément d'interruption d'écoulement (20) étant interposé entre une première portion (100) de l'installation directement en raccordement fluidique avec au moins une unité de conditionnement d'air (2) et une seconde portion (200) de l'installation et interceptant l'écoulement d'air provenant de la au moins une unité de conditionnement d'air (2) et dirigé vers la seconde portion (200) de l'installation ;
    - au moins un capteur (22) de pression ou d'écoulement pour détecter une pression ou un écoulement de fonctionnement interne de l'installation, la procédure comprenant les étapes suivantes :
    - d'activation de l'unité de conditionnement (2) afin de générer une augmentation de pression dans l'air et un écoulement d'air à diffuser au plan interne des canaux de transport (13) et des diffuseurs (4) ;
    - de détection, par l'intermédiaire du capteur (22), de la pression ou de l'écoulement généré·e au plan interne de l'installation ;
    - de déplacement de l'élément d'interruption d'écoulement (20) dans une position de fonctionnement comprise entre le premier et le second état de fonctionnement en fonction de la détection de pression ou d'écoulement effectuée par le capteur (22) pour la régulation de l'écoulement d'air au plan interne de l'installation,
    la procédure comprenant en outre l'étape suivante :
    - de génération d'une augmentation de pression supplémentaire dans l'air à diffuser, caractérisée en ce que l'augmentation supplémentaire dans la pression est obtenue par l'exclusion, au moins partielle, d'un ou plusieurs éléments diffuseurs (4), les éléments diffuseurs (4) qui sont exclus ne diffusant pas, ou diffusant moins que durant le fonctionnement normal, durant le processus de réglage, l'air dans l'environnement, l'augmentation de pression supplémentaire conduisant à une augmentation substantielle dans le démarrage des diffuseurs (4) non exclus afin de générer des courants près du sol dans l'environnement à conditionner, et par conséquent de déplacer l'air présent à cet endroit.
  2. Procédure selon la revendication 1, le capteur (22) étant positionné à la première portion (100) de l'installation afin de détecter une pression ou l'écoulement de fonctionnement de la première portion de l'installation directement en raccordement fluidique avec la au moins une unité de conditionnement d'air (2), l'étape de déplacement de l'élément d'interruption d'écoulement (20) étant effectuée en fonction de la détection de pression ou d'écoulement de la première portion (100) de l'installation directement en raccordement fluidique avec au moins une unité de conditionnement d'air (2) afin de réguler l'écoulement d'air au niveau de la première portion (100) de l'installation interposée entre la au moins une unité de conditionnement d'air (2) et le au moins un élément d'interruption d'écoulement (20).
  3. Procédure selon l'une quelconque des revendications précédentes, comprenant en outre une étape de sélection d'une valeur souhaitée d'écoulement d'air par mètre linéaire et de déplacement de l'élément d'interruption d'écoulement (20) dans une position comprise entre le premier et le second état de fonctionnement en fonction de la détection de pression ou d'écoulement effectuée par le capteur (22) afin d'au moins partiellement exclure au moins un élément diffuseur (4) et de porter la valeur réelle de l'écoulement d'air par mètre linéaire dans la première portion de l'installation aux valeurs qui sont proches de, ou qui coïncident avec, la valeur souhaitée d'écoulement d'air par mètre linéaire.
  4. Procédure selon l'une quelconque des revendications précédentes, comprenant en outre une étape de génération d'une augmentation dans la pression d'air à diffuser au plan interne de l'installation par rapport à la pression de fonctionnement, l'augmentation de pression étant obtenue par un moyen d'exclusion au moins partielle d'un ou plusieurs éléments diffuseurs (4), les éléments diffuseurs (4) exclus ne diffusant sensiblement pas, ou uniquement modestement, l'air de diffusion dans l'environnement par rapport au fonctionnement normal, l'augmentation de pression conduisant à une augmentation substantielle d'un démarrage des diffuseurs (4) non exclus, éventuellement l'augmentation du démarrage des diffuseurs (4) non exclus générant des courants à proximité du sol dans l'environnement à conditionner et déplaçant l'air présent à cet endroit.
  5. Procédure selon la revendication 4 précédente, l'installation comprenant au moins un dispositif d'actionnement (25) pour déplacer l'élément d'interruption d'écoulement (25) entre le premier état de fonctionnement et le second état de fonctionnement et vice versa, la sous-étape de déplacement de l'élément d'interruption d'écoulement (20) étant une sous-étape de mouvement automatique à l'aide du dispositif d'actionnement (25), et l'étape d'exclusion au moins partielle comprenant une sous-étape de déplacement de l'élément d'interruption d'écoulement (20) depuis le premier état de fonctionnement vers le second état de fonctionnement.
  6. Procédure selon la revendication précédente, comprenant en outre une unité de commande (CPU) convenant pour recevoir en entrée le signal de pression ou d'écoulement de la part du capteur (22) et de commande du mouvement du dispositif d'actionnement (25) afin de réguler l'écoulement d'air au niveau de la première portion (100) de l'installation et comprenant en outre une mémoire contenant au moins une valeur de pression souhaitée et/ou une valeur souhaitée d'écoulement d'air par mètre linéaire dans la première portion de l'installation et l'unité de commande (CPU) commandant le mouvement du dispositif d'actionnement pour la régulation de l'écoulement d'air au niveau de la première portion de l'installation en fonction de la valeur reçue par le capteur (22) et de la valeur souhaitée d'écoulement d'air par mètre linéaire, en particulier la valeur souhaitée d'écoulement d'air par mètre linéaire étant associée à une valeur de pression prédéterminée correspondante, l'unité de commande (CPU) déplaçant l'élément d'interruption d'écoulement (20) entre le premier état de fonctionnement et le second état de fonctionnement ou vice versa afin de déterminer, au plan interne de la première portion de l'installation, une variation de pression réelle détectée ou un écoulement réel détecté par le capteur (22) et de porter la valeur de la pression réelle détectée ou de l'écoulement réel détecté à la valeur de pression prédéterminée à laquelle l'écoulement d'air souhaité par mètre linéaire est associé ou à l'écoulement d'air souhaité par mètre linéaire, le mouvement de l'élément d'interruption d'écoulement (20) permettant à l'unité de commande de réguler l'écoulement d'air au niveau de la première portion (100) de l'installation.
  7. Procédure selon la revendication 4 précédente, l'étape d'exclusion, qui comprend ladite exclusion, au moins partielle, d'un ou plusieurs éléments diffuseurs (4) étant une étape d'exclusion ajustable pour obtenir des valeurs différentes de variation de pression, positives ou négatives.
  8. Procédure selon l'une quelconque des revendications précédentes, comprenant en outre les étapes suivantes :
    - de prédisposition d'au moins une pression cible ou une plage cible de valeurs pour porter l'installation de conditionnement jusqu'à un niveau de service ;
    - de régulation d'exclusion au moins partielle d'un ou plusieurs éléments diffuseurs (4) en fonction de la détection de pression effectuée par le capteur (22) pour amener à la pression de fonctionnement de l'installation afin de converger vers la valeur de pression cible ou vers la plage cible de valeurs de pression.
  9. Procédure selon la revendication précédente, l'installation comprenant un ou plusieurs éléments d'interruption d'écoulement (20) mobiles entre le premier état de fonctionnement dans lequel ils permettent la sortie de l'air des éléments diffuseurs (4) et le second état de fonctionnement dans lequel ils interceptent l'air d'au moins un élément diffuseur (4) et réduisent la diffusion de l'air, l'étape de régulation de l'exclusion comprenant un mouvement d'un élément d'interruption d'écoulement (20) depuis le premier état de fonctionnement vers le second état de fonctionnement afin d'effectuer une variation contrôlée de la diffusion de l'air dans l'orifice de sortie depuis l'élément diffuseur (4).
  10. Procédure selon l'une quelconque des revendications précédentes, l'installation comprenant un nombre prédéterminé d'éléments diffuseurs sous la forme de canaux diffuseurs (4a) pourvus d'une pluralité de perforations (14) au niveau d'une surface latérale (15), la pluralité des perforations (14) faisant face éventuellement au moins en partie vers le bas dans les conditions d'utilisation du canal diffuseur (4a), le canal diffuseur (4a) faisant preuve d'une première extrémité (16) en raccordement fluidique direct avec le canal de transport (13) et une seconde extrémité fermée (17), une exclusion au moins partielle d'un ou plusieurs canaux diffuseurs (4a) apparaissant à l'aide d'une interruption au moins partielle de la communication fluidique entre le canal de transport (13) et une portion terminale (18) du canal diffuseur (4a) définissant la seconde portion de l'installation et localisée au niveau de la seconde extrémité fermée (17), l'écoulement d'air dans la portion terminale (18) du canal diffuseur (4a) faisant preuve d'une réduction suite à l'interruption au moins partielle dans la communication avec le canal de transport (13).
  11. Procédure selon l'une quelconque des revendications précédentes, dans laquelle l'installation comprend un nombre prédéterminé d'éléments diffuseurs sous une forme de canaux diffuseurs (4a) pourvus d'une pluralité de perforations (14) au niveau de leur surface latérale (15), la pluralité des perforations (14) faisant face éventuellement vers le bas dans les conditions d'utilisation du canal diffuseur (4a), le canal diffuseur (4a) faisant preuve d'une première extrémité (16) se trouvant directement en raccordement fluidique avec le canal de transport (13) et d'une seconde extrémité (17) se trouvant directement en raccordement fluidique avec un canal de transport (13) supplémentaire, une exclusion au moins partielle du un ou plusieurs canaux diffuseurs (4a) apparaissant à l'aide d'une interruption au moins partielle de la communication fluidique entre une portion centrale (19) du canal diffuseur (4) définissant la seconde portion de l'installation et interposée entre la première et la seconde extrémité (16, 17), l'écoulement d'air dans la portion centrale (19) du canal faisant preuve d'une variation suite à l'interruption au moins partielle de la communication avec les canaux de transport (13).
  12. Procédure selon la revendication 10 ou 11 précédente, dans laquelle le canal diffuseur (4a) comprend au moins un élément d'interruption d'écoulement (20), par exemple un obturateur, mobile entre un état non de fonctionnement dans lequel il permet un passage de fluide vers la portion terminale (18) ou la portion centrale (19) et un état de fonctionnement dans lequel il intercepte au moins partiellement l'air, réduisant le passage d'air vers la portion, l'état de fonctionnement étant capable éventuellement de coïncider également avec une interruption substantielle du passage de liquide, l'étape d'exclusion, qui comprend ladite exclusion, au moins partielle, d'un ou plusieurs éléments diffuseurs (4) comprenant une sous-étape de déplacement de l'élément d'interruption d'écoulement (20) de l'état non de fonctionnement vers l'état de fonctionnement.
  13. Installation de conditionnement d'air, comprenant :
    - au moins une unité de conditionnement d'air (2) convenant pour générer une augmentation de pression dans l'air à diffuser ;
    - une pluralité d'éléments diffuseurs (4) pour diffuser l'air conditionné dans un environnement ;
    - au moins un canal de transport (13) pour transférer l'air à diffuser depuis l'unité de conditionnement vers les éléments diffuseurs (4) ;
    - un ou plusieurs éléments d'interruption d'écoulement (20) mobiles entre un premier état dans lequel ils permettent la sortie de l'air des éléments diffuseurs (4) et un second état de fonctionnement dans lequel ils interceptent au moins partiellement l'air d'au moins un élément diffuseur (4), réduisant la diffusion de l'air depuis l'élément diffuseur,
    - au moins un capteur (22) de pression pour détecter une pression de fonctionnement au plan interne de l'installation et
    - une unité de commande (23) configurée pour détecter, par l'intermédiaire du capteur (22) de pression, une pression de fonctionnement au plan interne de l'installation,
    caractérisée en ce que, afin de réguler l'exclusion au moins partielle du un ou plusieurs éléments diffuseurs (4) en fonction d'une détection de pression effectuée par le capteur (22), l'unité de commande (23) est configurée pour exécuter la procédure selon les revendications 1 à 12 et étant en outre configurée afin de recevoir au moins une valeur de pression cible ou une plage cible de valeurs de pression pour régler l'installation de traitement d'air à partir d'une mémoire, et pour réguler l'exclusion au moins partielle d'un ou plusieurs éléments diffuseurs (4) en fonction d'une détection de pression effectuée par le capteur (22) afin d'amener la pression de fonctionnement de l'installation à converger vers la valeur de pression cible, ou vers la plage cible de valeurs de pression.
EP17193279.1A 2011-08-12 2012-08-09 Procédure de régulation d'un flux d'air dans une installation de conditionnement d'air et une installation relative Active EP3293462B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201231903T SI3293462T1 (sl) 2011-08-12 2012-08-09 Postopek za regulacijo pretoka zraka v klimatski napravi in pripadajoča naprava

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001538A ITMI20111538A1 (it) 2011-08-12 2011-08-12 Procedimento per la regolazione della portata di aria in un impianto per il trattamento dell'aria e relativo impianto
EP12179782.3A EP2557368B2 (fr) 2011-08-12 2012-08-09 Procédé de réglage d'un flux d'air d'un système de conditionnement d'air et système de conditionnement d'air associé

Related Parent Applications (2)

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EP12179782.3A Division-Into EP2557368B2 (fr) 2011-08-12 2012-08-09 Procédé de réglage d'un flux d'air d'un système de conditionnement d'air et système de conditionnement d'air associé
EP12179782.3A Division EP2557368B2 (fr) 2011-08-12 2012-08-09 Procédé de réglage d'un flux d'air d'un système de conditionnement d'air et système de conditionnement d'air associé

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EP17193279.1A Active EP3293462B1 (fr) 2011-08-12 2012-08-09 Procédure de régulation d'un flux d'air dans une installation de conditionnement d'air et une installation relative

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ES (1) ES2862306T3 (fr)
HR (1) HRP20171943T4 (fr)
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FR3028012B1 (fr) * 2014-10-31 2016-12-23 Aereco Hub de distribution modulee d'air neuf
JP2018511790A (ja) 2015-02-26 2018-04-26 ドワイヤー インスツルメンツ，インコーポレイテッド 気流フード
IT201600127985A1 (it) * 2016-12-19 2018-06-19 Marco Zambolin Diffusore, impianto di trattamento aria comprendente detto diffusore ed uso di detto diffusore per il trattamento di aria
NL2018913B1 (nl) * 2017-05-12 2018-06-05 Inteco B V Plafondeiland met innovatief luchtkanaal
CN109340985A (zh) * 2018-08-16 2019-02-15 叶婉芳 一种厂房车间的通风节能设备
FR3101937B1 (fr) 2019-10-10 2021-10-22 Ludovic Boulanger Dispositif de ventilation de bâtiment
EP3926245B1 (fr) * 2020-06-15 2023-12-27 Halton OY Système d'alimentation en air protecteur et procédé d'alimentation en flux d'air protecteur dans une pièce propre
IT202000006713U1 (it) * 2020-12-04 2022-06-04 Poliedra Srl “dispositivo di distribuzione di aria con elementi di illuminazione integrati.”
CN113606765B (zh) * 2021-09-14 2022-08-02 哈尔滨商业大学 一种中央空调系统用便拆式湿度控制接头装置
EP4269900A1 (fr) * 2022-04-28 2023-11-01 Air'technologies Conduit diffuseur pour diffuser de l'air conditionné

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US6719625B2 (en) * 2001-09-26 2004-04-13 Clifford Conrad Federspiel Method and apparatus for controlling variable air volume supply fans in heating, ventilating, and air-conditioning systems
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Publication number Publication date
EP2557368B2 (fr) 2022-02-23
SI2557368T2 (sl) 2022-07-29
EP2557368B1 (fr) 2017-09-27
HRP20171943T1 (hr) 2018-02-23
ES2862306T3 (es) 2021-10-07
ITMI20111538A1 (it) 2013-02-13
SI3293462T1 (sl) 2021-07-30
EP2557368A1 (fr) 2013-02-13
EP3293462A1 (fr) 2018-03-14
HRP20171943T4 (hr) 2022-06-24
SI2557368T1 (en) 2018-04-30

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