EP2244022A1 - Appareil pour le traitement de l'air - Google Patents

Appareil pour le traitement de l'air Download PDF

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Publication number
EP2244022A1
EP2244022A1 EP10159863A EP10159863A EP2244022A1 EP 2244022 A1 EP2244022 A1 EP 2244022A1 EP 10159863 A EP10159863 A EP 10159863A EP 10159863 A EP10159863 A EP 10159863A EP 2244022 A1 EP2244022 A1 EP 2244022A1
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EP
European Patent Office
Prior art keywords
header
air
plant
diffuser
environment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10159863A
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German (de)
English (en)
Inventor
Marco Zambolin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Application filed by Individual filed Critical Individual
Publication of EP2244022A1 publication Critical patent/EP2244022A1/fr
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    • 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
    • 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

Definitions

  • the invention relates to a plant for producing treated air.
  • the present invention is applicable in conditioning of environments such as swimming pools, offices, workshops etc., by means of air treatment plants which employ a plenum header or one or more ring headers, as will be more fully explained herein below.
  • the traditional systems for air treatment comprise an air treatment unit, which generates a flow, possibly a conditioned flow, of air into a header which is in turn destined to divide the flow into a plurality of branches, to which corresponding diffusers for emitting treated air into the environment are associated.
  • the air treatment unit injects a flow at a central zone of the header such that the flow is divided into two branches, left and right, of the header in order then to reach the appropriately-positioned distribution channels.
  • prior-art headers are generally tapered in a distancing direction from the access of the air coming from the treatment unit.
  • the separating channels are also tapered in a distancing direction from the header in order to guarantee maintaining the desired air flow exiting from the diffusers, even where the diffusers are positioned at a considerable distance from the treatment unit.
  • the dimensions of the channels are designed to provide a recuperation of the dynamics via a narrowing of the sections in a distancing direction from the air treatment units.
  • the above enables air treatment units that are smaller and more easily manageable with respect to a single unit having double-flow rate.
  • FIG. 1c illustrates a further type of known plant in which the two plants, with the two relative headers, are both positioned in the centre of the environment to be treated and the distribution channels carry the flow of air to the diffusers along opposite directions.
  • Air treatment plants in the prior art are however affected by some limitations and/or operating drawbacks and have shown themselves to be subject to improvement under some aspects.
  • each of the plants is predisposed to operate in and optimally condition only a zone of the total volume of the environment to be treated.
  • An aim of the present invention is thus substantially to resolve all the cited drawbacks.
  • a first objective of the invention is to enable an improved operating flexibility of the plant with respect to plants of the prior art.
  • a further aim is to enable optimal management of the plant under different environment treatment conditions (for example heating or cooling the environment, the mid-season periods, start-up conditions or normal operating regime).
  • environment treatment conditions for example heating or cooling the environment, the mid-season periods, start-up conditions or normal operating regime.
  • a further aim of the invention is to enable interventions to be made on the plant in order to modify its potential and/or to enable maintenance/replacement of defective parts without having to completely interrupt functioning thereof.
  • a further aim of the invention is to reduce the size of the header while also improving its aesthetic appearance, as well as reducing the costs of the plant in the environment.
  • a further and no less important aim of the invention is to provide a plant that can be adapted simply to the geometry of the environment to be treated, respecting the structural requirements of the building but without losing the possibility of obtaining the best possible performance of the plant.
  • 1 denotes in its entirety a plant for air treatment.
  • the plant primarily comprises a predetermined number of air treatment units 2 the main aim of which is to generate at least an increase in air pressure such as to enable the air to be diffused via the treatment plant.
  • air treatment units can comprise ventilators destined to generate the pressure increase of an air flow internal of the plant.
  • Air treatment units can be provided with further devices for heat-treating the air flow, either cooling it or heating it according to the ambient treatment requirements.
  • batteries of hot or cold water can be present, or other devices.
  • the treatment unit can comprise humidifiers, filters or like devices for conditioning the air injected into the environment.
  • the air treatment unit 2 is in general in fluid communication with a header 3, for example via an appropriate air feeding channel 8.
  • Each air treatment plant of the invention thus comprises at least a header 3.
  • each header 3 exhibits respective accesses 5 directly connected to the air treatment unit 2, for example via the air supply channel 8.
  • At least two air treatment units 2 are present, with respective air supply channels 8 which, via the accesses 5, send an air flow into the header 3.
  • a single air treatment unit 2 might have two or more air supply channels 8 which carry the flow to different points of the header 3 via different accesses 5 (see for example figure 5 ).
  • the flow generated by a single air treatment unit 2 is shared through the various air supply channels 8 which are part thereof, and is introduced into the header 3 at different positions.
  • the plant also comprises at least a diffuser 4 in fluid communication with the header 3 in order to diffuse the treated air into the environment.
  • a plurality of diffusers 4 is present, and in general a plurality of diffuser channels 6, perforated such as to diffuse air into the environment, generating an inductive effect on the air surrounding the channel.
  • the diffuser channels 6 exhibit a plurality of perforations possibly having different diameters specially arranged such as to move the environmental air, exploiting the high induction.
  • the air supply channel 8 which connects the air treatment units 2 to the header 3 exhibits respective closing means 9 which can selectively prevent an air flow through the supply channel 8, especially in a rest condition of the air treatment unit 2.
  • the closing means 9, which are in general defined by shutters, for example slat shutters which are opposite and mobile between an open condition in which the air passage is enabled and a closed condition in which they block the flow, are destined to prevent the air contained in the header 3 from flowing back through the supply channel 8 when the air treatment unit 2 is turned off, for example by turning the ventilator in an opposite direction to the direction of normal use and thus dispersing the flow energy into the environment.
  • shutters for example slat shutters which are opposite and mobile between an open condition in which the air passage is enabled and a closed condition in which they block the flow
  • the choking means 10 can be active on the header 3 or between the header 3 and the diffuser 4 such that they can respectively choke the air flow in the header 3 or the air flow between the collector 3 and the diffuser 4.
  • the choking means 10 can also be in general constituted by shutters, for example oppositely-placed slats, mobile between a fully open position in which they enable the air flow to cross and a closed position in which they block the passage.
  • both the closing means 9 and the choking means 10 which can be of substantially similar embodiments (and different from those described), are interposed in special sections of the respective channels and are in general motorised in order to be remote-controlled or even automatic.
  • the plant can be optionally provided with respective junctions 11, each provided with at least two accesses (and up to six accesses overall).
  • junctions are constituted by prismatic box structures, for example cubic, in which each of the surfaces corresponds to a potential access 11a, 11b, 11c, 11d, 11e (see figure 9 ).
  • the junction 11 can be positioned in different parts of the air treatment plant.
  • junction can be positioned between a header 3 and a diffuser 4 such as to be able to interrupt the communication between the two components.
  • junction can be interposed between the access channels 8 and the header 3 such as to make the fluid connection between the two parts selective.
  • Figure 9 illustrates one of the junctions 11 in a perspective view.
  • the junction exhibits an air access channel 8 located superiorly to receive a deliver from the air treatment unit 2, through the access 11a.
  • the closing means 9 are located at the access surface 11a, which closing means 9 are constituted by a motorised shutter (see figure 10 ) having opposite slats.
  • the junction schematically represented in figure 9 is interposed along the header 3 and in particular between two consecutive portions 3a and 3b, and can be closed by choking means 10, also constituted by shutters having opposite slats in order selectively to block the flow between the portions 3a and 3b. Further, respective two-diffuser channel 6 accesses 11c and 11e are present, such that the fluid communication between the header 3 and the diffuser channels 6 can be interrupted when so desired by use of the choking means 10 constituted by motorised and opposite slat shutters ( figure 10 ).
  • Figure 10 shows the junction (schematically illustrated in figure 9 ) in a vertical cross-section.
  • the section illustrates in detail the closing means 9 and the choking means 10 interposed respectively between the access channel 8 and the header 3 and between the header 3 and the two diffuser channels 6 which lead off therefrom.
  • the air treatment plants whose components have been described herein above can give rise to a plurality of different configurations, characterised by excellent adaptability to the environment to be conditioned and by advantageous characteristics which will be described in detail herein below.
  • figures 2, 3 and 4 illustrate three possible configurations of the air treatment plant of the invention which use a self-balancing plenum header.
  • Figure 2 shows a plant in which the header 3 is arranged centrally of an environment 12 to be conditioned.
  • Three air treatment units 2 are connected to the header 3 along an axial development of the header 3, each of which units 2 has its own air supply channel 8 and its own closing shutter 9.
  • the plenum header 3 generally made of metal and lacking holes or vents for air diffusion (except, in some plants, for anti-condensation perforations), exhibits the same section along its whole development.
  • a junction 11 of the above-described type is located at each branching-off point from the header 3.
  • junctions 11 represented exhibit at least sectioning or choking means 10 at the connection between each diffuser channel 6 and the collector 3.
  • junctions can be fitted with opposite closing slat shutters even at contiguous portions of the header in order to interrupt the flow in the header 3 at preselected zones.
  • the regulation of the perforated length (thanks to the closing of the closing of the shutters of the junctions 11 where considered appropriate) requalifies (i.e. returns to optimal values) the outlet velocity from the holes, and thus the induction.
  • This condition might be in an air treatment plant during the summer season.
  • the illustrated plant might function as a heating plant for the environment.
  • each channel 8 connecting the plenum header 3 to the non-functioning air treatment unit 2 is closed via the closing means 9 in order to prevent loss of the conditioned air through the non-functioning treatment unit.
  • Figure 3 illustrates a different type of plant with a plenum header 3 arranged exclusively on one side of the environment 12 to be treated.
  • each air treatment unit 2 is present, all in fluid communication with the plenum header 3, each unit 2 being provided with respective closing means 9 and the respective choking means 10 for interrupting air flow between the header 3 and the diffuser channel 6.
  • the described plant might be designed with only two air treatment units 2, with further accesses 5 for enabling other units to be added at a later date.
  • An initial requirement might be to create only an air treatment plant for heating an environment as it requires a certain volume of conditioned air per unit of time.
  • FIG of figure 4 describes a further embodiment in which two plenum headers 3 are present, one for each larger side of the environment 12 to be treated, each plenum header 3 being provided with its own air treatment units 2 in fluid connection and the respective junctions 11 at each connection of the plenum header 3 with the diffuser 4.
  • diffuser channels 6 connect a plenum header 3 to another, thus defining a multi-connected structure.
  • the air treatment plant of figure 4 is self-balancing, as substantially they do not generate air flows having specific directions internally of the plant; this is due to the fact that the load losses in the conduits are significantly lower than the load losses localised at the diffuser holes present on the diffuser channels 6.
  • the adoption of the plenum header 3 of the invention enables the treatment units 2 to be arranged, but also the headers 3, in the most advantageous positions, taking account of the geometry and the structure of the environment to be conditioned.
  • Figures 5 , 6 , 7 , 8 illustrate an alternative configuration of the plant which exploits a self-compensating ring header 3 (or several rings)
  • Figure 5 illustrates a ring header 7 which follows the perimeter of the environment 12 to be conditioned.
  • the section of the header channel can be reduced. Should a flow rate of 30,000 m 3 /hour be necessary, if this flow were injected via a single access 5 in a ring header, this would require the ring header to have a section able to entrain and process 15,000 m 3 of air/ hour for each segment (left and right) of the ring header facing the access 5.
  • the access zones would receive lower amounts of cubic metres of air per hour, and will require smaller conveying sections. This will lead to the possibility of having smaller ring header sections with an improved aesthetic impact and a considerable reduction in costs. Further, the ring header 3 can continuously follow the geometries of the environment to be treated, without the air treatment plant's being affected from the fluid-dynamic point of view by the said geometries.
  • the ring header 3 mainly functions as a diffuser 4.
  • the ring header 3 By making the ring header 3 of metal and appropriately perforating it, the conditions are created whereby the ring header is able to perform the air diffusion towards the environment 12 to be treated while enabling optimal homogeneity of the environmental temperatures, with perfect control of the residual velocity at ground level.
  • the plant of figure 6 substantially correspond to the one in figure 5 , but it exhibits four junctions 11 located at the corners of the environment to be conditioned.
  • junctions 11 and in particular the respective choking means 10, enable a choked ring header 3 to be obtained in which apart from functioning at full power and with the ring open it is also possible to obtain, for example, operation on only two opposite sides.
  • the treatment plant of figure 7 comprises use not only of the self-compensating header 3 but also of a plurality of diffuser channels 6 or discharge channels which interconnect opposite portions of the ring header.
  • an air treatment unit 2a can also be associated to the diffuser channels 6, which air treatment unit 2a can for example divide the flow it generates over each of the connecting channels.
  • the plant of figure 8 illustrates a solution comprising two ring headers 7 interconnected to one another by means of interposed junctions 11 supplied by two air treatment units 2.
  • FIG 12 A possible use of multiple ring headers 3 in plants is illustrated in figure 12 , where a possible air treatment plant for conditioning environments on two different floors of a building is illustrated, achieved with a single air treatment unit 2 which divides its flow over respective rings 3 in the higher floor and rings 3 in the lower floor.
  • a booth 15 is illustrated for painting vehicles 14, in particular carriages for trains, or motor vehicles.
  • Figure 11a illustrates the standard arrangement (open paint booth) of an air treatment plant with a ring header for realising process plants such as for example the diffusion or the air in the space of a open paint booth for vertical or horizontal laminar-flow diffusion in a paint booth.
  • a ring header 3 of the present invention is alternatively located at a lateral wall 15a of the booth.
  • an air treatment unit 2 is illustrated, provided with an appropriate ventilator which, via an air supply channel 8, carries the treated air flow to four different accesses 5 of the ring header 3.
  • the ring header 3 which is also a diffuser, generates a plurality of air flows directed horizontally towards the paint booth 15.
  • the various fluid lines are made parallel and substantially constant in such a way as to generate a substantially laminar flow in order to optimise the painting processes.
  • the invention provides important advantages.
  • the plenum header enables maintenance operations to be carried out without having to turn the plant off, and also to divide the flows according to particular needs at any time (increasing the plant dimensions, regime situations) or to the season of the year (winter or summer).
  • the plants are easily adaptable to the structure of the building as access to the plenum header can be performed at any point thereof; the plants can be modified by intervening for example in order to increase the power and/or flow rate per linear metre without having to disrupt the original design specifications.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Treating Waste Gases (AREA)
EP10159863A 2009-04-14 2010-04-14 Appareil pour le traitement de l'air Withdrawn EP2244022A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2009A000604A IT1397501B1 (it) 2009-04-14 2009-04-14 Impianto per il trattamento dell'aria

Publications (1)

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EP2244022A1 true EP2244022A1 (fr) 2010-10-27

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ID=41320100

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EP10159863A Withdrawn EP2244022A1 (fr) 2009-04-14 2010-04-14 Appareil pour le traitement de l'air

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EP (1) EP2244022A1 (fr)
IT (1) IT1397501B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2557368A1 (fr) * 2011-08-12 2013-02-13 Marco Zambolin Procédé de réglage d'un flux d'air d'un système de conditionnement d'air et système de conditionnement d'air associé
EP2597392A2 (fr) 2011-10-11 2013-05-29 Marco Zambolin Appareil pour le traitement de l'air
ITPR20120052A1 (it) * 2012-07-31 2014-02-01 Mazzimpianti S R L Diffusore d'aria a dislocamento cilindrico verticale, metodo e impianto di climatizzazione cosi' ottenuto
CN113551367A (zh) * 2021-07-30 2021-10-26 美的集团武汉制冷设备有限公司 空调器的控制方法、空调器及介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804816A (en) * 1954-09-16 1957-09-03 James L Hoyer Economy air conditioning system
US3818814A (en) * 1972-04-28 1974-06-25 Nasa Air conditioning system and component therefor distributing air flow from opposite directions
EP0899519A1 (fr) * 1997-07-24 1999-03-03 Marco Zambolin Conduit de transport et de distribution d'air

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804816A (en) * 1954-09-16 1957-09-03 James L Hoyer Economy air conditioning system
US3818814A (en) * 1972-04-28 1974-06-25 Nasa Air conditioning system and component therefor distributing air flow from opposite directions
EP0899519A1 (fr) * 1997-07-24 1999-03-03 Marco Zambolin Conduit de transport et de distribution d'air

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2557368A1 (fr) * 2011-08-12 2013-02-13 Marco Zambolin Procédé de réglage d'un flux d'air d'un système de conditionnement d'air et système de conditionnement d'air associé
ITMI20111538A1 (it) * 2011-08-12 2013-02-13 Marco Zambolin Procedimento per la regolazione della portata di aria in un impianto per il trattamento dell'aria e relativo impianto
EP3293462A1 (fr) * 2011-08-12 2018-03-14 Marco Zambolin Procédure de régulation d'un flux d'air dans une installation de conditionnement d'air et une installation relative
EP2597392A2 (fr) 2011-10-11 2013-05-29 Marco Zambolin Appareil pour le traitement de l'air
ITPR20120052A1 (it) * 2012-07-31 2014-02-01 Mazzimpianti S R L Diffusore d'aria a dislocamento cilindrico verticale, metodo e impianto di climatizzazione cosi' ottenuto
CN113551367A (zh) * 2021-07-30 2021-10-26 美的集团武汉制冷设备有限公司 空调器的控制方法、空调器及介质

Also Published As

Publication number Publication date
ITMI20090604A1 (it) 2010-10-15
IT1397501B1 (it) 2013-01-16

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