EP0789198A2 - Procédé de climatisation d'une enceinte de traitement et dispositif pour réaliser le procédé - Google Patents

Procédé de climatisation d'une enceinte de traitement et dispositif pour réaliser le procédé Download PDF

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Publication number
EP0789198A2
EP0789198A2 EP96114393A EP96114393A EP0789198A2 EP 0789198 A2 EP0789198 A2 EP 0789198A2 EP 96114393 A EP96114393 A EP 96114393A EP 96114393 A EP96114393 A EP 96114393A EP 0789198 A2 EP0789198 A2 EP 0789198A2
Authority
EP
European Patent Office
Prior art keywords
air
treatment room
wall
room
air conditioning
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Withdrawn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
EP96114393A
Other languages
German (de)
English (en)
Other versions
EP0789198A3 (fr
Inventor
Peter Kollros
Alfred Kost
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.)
Zellweger Luwa AG
Original Assignee
Luwa Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luwa Ltd filed Critical Luwa Ltd
Publication of EP0789198A2 publication Critical patent/EP0789198A2/fr
Publication of EP0789198A3 publication Critical patent/EP0789198A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • 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
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/10—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with air supply, or exhaust, through perforated wall, floor or ceiling

Definitions

  • the invention relates to a method for air conditioning a treatment room according to the preamble of patent claim 1 and a device for carrying out this method according to the preamble of patent claim 6.
  • conditioned air with a certain air humidity and air flow is blown into the treatment room and then drawn off
  • the conditioned air is conditioned in an air conditioning system, i.e. tempered, dehumidified and / or humidified, and blown directly from an injection opening or via air distribution channels into the treatment room.
  • the used air is then drawn off at another location in the treatment room.
  • it In order to achieve adequate air conditioning in the treatment room, it must be blown into the room at a relatively high speed, which creates turbulent currents. These currents should ensure that there is a sufficient exchange of moisture between the biological products to be treated and the conditioned air.
  • the present invention has for its object to provide an air conditioning of a treatment room, which allows a distribution of the conditioned air, which is carried out over the entire room with a largely uniform air temperature and humidity.
  • the invention is based on the knowledge that it is only when the treatment room is enforced with a low-turbulence, piston-like displacement flow that uniform air conditioning is achieved.
  • a low-turbulence or laminar displacement flow is known per se from clean room technology and is described in more detail, inter alia, in CH-A-576 109.
  • the elaborate filter technology with locks, as used in clean room technology, to filter out suspended matter such as dust particles, microorganisms and the like and to prevent impermissible air currents, is not required in ripening cellars for the production of soft cheese.
  • Figure 1 is a purely schematic, a cuboid, heat-insulated environmental climate room 1 with a first air conditioning system 2, a plurality of second air conditioning systems (secondary systems) 3, 3 ', 3''and several heat-insulated treatment rooms or maturing cellars 4, 4 ', 4''.
  • the air conditioning systems 2 and 3, 3 ', 3'' are designed as usual with a blower, a cooler, a heat exchanger and a humidifier (not shown here).
  • the outside air designated by an arrow 5 is conducted from an inlet 6 into a supply line 7 to the first air conditioning system 2 and is air-conditioned there.
  • This air-conditioned primary air is blown into the ambient climate space 1 via supply lines 9 on the one hand and supplied to the second air conditioning systems 3, 3 ', 3''via transport lines 10 on the other hand.
  • the conditioned primary air 8 blown into the climate space 1 flows outward through the resulting excess pressure via an outlet 11.
  • the air conditioning systems 3, 3 ', 3'' are in turn each connected to the associated treatment room 4, 4', 4 '' via a feed line 12 and a discharge line 13 and thus form individual control loops for each individual treatment room 4, 4 ', 4''to maintain a uniform temperature and humidity depending on the process requirements.
  • Each treatment room 4, 4 ′, 4 ′′ has an inlet 14 connected to the feed line 12 and an outlet 15 connected to the discharge line 13.
  • a parallel and level air-permeable distributor wall 19 which extends over the entire vertical cross section of the treatment room 4, 4', 4 ''.
  • An air distribution chamber 20 is thus formed between the end wall 18 and the air-permeable distributor wall 19, into which the conditioned air shown by the arrow 21 is blown in turbulently and via the distributor wall 19 as a low-turbulence displacement flow into the treatment room 4, 4 ′, indicated by the arrows 22. , 4 '' with a relatively low flow rate flows in horizontally.
  • the air-permeable distributor wall 19 has two screen surfaces 23 and 24 arranged in parallel, each having a mesh size of 0.01 to 0.1 mm and a distance of about 0.2 to 5 cm from one another.
  • Arranged on the outlet-side end wall 25 of the treatment room 4, 4 ', 4'' is an air-permeable collecting wall 26 which is parallel to this and level and which also extends over the entire vertical cross section of the treatment room 4, 4', 4 ''.
  • the end wall 25 and the air-permeable collecting wall 26 together form an air suction chamber 27, from which the secondary air represented by the arrows 28 is withdrawn from the treatment room 4, 4 ', 4''.
  • the distributor wall 19 and the collecting wall 26 are arranged parallel to one another, but their planes can also form a small acute angle to one another in order to penetrate the respective treatment room 4, 4 ′, 4 ′′ with a low-turbulence displacement flow 22.
  • the air-permeable collecting wall 26 is in turn formed by a perforated plate which is provided as a perforated screen surface and which has holes with a hole diameter of 2 to 5 mm and a hole spacing of 5 to 12 mm.
  • FIG 2 the same climatic room 1 is shown purely schematically in a vertical cross section.
  • storage racks 29 are set up with horizontal, superimposed storage surfaces 30 on which the biological products, not shown, in particular cheese loaves made of soft cheese, are stored for the ripening process.
  • These storage racks 29 are arranged up to the ceiling in order to utilize the full height of the room.
  • a small pipe 31 protrudes approximately up to the middle into the room, which with appropriate temperature and moisture measuring devices and with which air samples can be taken to measure their temperature and relative humidity.
  • the air-permeable distributor wall 19 can be seen in a perspective view, which consist of several panels 34 pivotally mounted on the ceiling 33, which are mutually attached by means of quick-release fasteners 35.
  • the panels 34 each have a frame 36 with cross slats 37, between which the screen surfaces 23 and 24 are stretched.
  • the air-permeable collecting wall 26 consists of a plurality of doors 40 which are pivotably attached to a vertical frame 39, each of which has sieve holes 41 over its entire surface.
  • the vertical frame 39 is fastened to the side walls, not shown here, of the respective treatment room 4, 4 ', 4' 'and extends from the floor to the ceiling.
  • a filter (not shown here) can additionally be provided behind the sieve holes 41.
  • the discharge line 13, the second air conditioning system 3, 3 ', 3' 'and the supply line 12 can thus be kept hygienically clean.
  • the air conditioning of the treatment rooms 4, 4 ', 4'' now works as follows:
  • outside air 5 is sucked in and air-conditioned by the first air conditioning system 2, ie brought to a certain temperature and relative humidity as primary air 8.
  • the heat-insulated climatic room 1 acts as a buffer between the outside environment and the heat-insulated treatment rooms 4, 4 ', 4''arranged inside. Seasonal fluctuations in the temperature and the relative humidity of the primary air 8 are thus compensated for.
  • the primary air 8 conditioned in this way is fed to the second air conditioning systems 3, 3 ', 3''via the transport lines 10 and mixed there with the secondary air 28 drawn off from the treatment rooms 4, 4', 4 '' in an individual control loop and air-conditioned, ie brought to the correct temperature and relative humidity and fed back into the respective treatment room 4, 4 ', 4''via the air circulation system as conditioned air 21.
  • the humidification of the air is preferably done with so-called cold steam, which is mixed with the air by spraying water with a nozzle under a pressure of 70 to 90 bar as a spray. This results in adiabatic cooling of the air, which is why less energy is required for air conditioning.
  • the relatively slow and even displacement flow also ensures that there is no condensed water in the treatment room 4, 4 ', 4'', so that the ripening process of the cheese wheels in the treatment room 4, 4', 4 '' - in contrast to conventional air conditioning with a sometimes much higher air flow velocity, at which larger temperature differences occur and can therefore lead to local condensation - is hardly noticeably influenced.
  • air conditioning of the individual treatment rooms 4, 4 ', 4'' it has been found that less energy is required for the ripening process by the air conditioning systems. Furthermore, the ripening process runs faster and there is less shrinkage of the cheese wheels. It can also be seen that up to 25% less vaccine is needed in the form of mold cultures.
  • the walls and the ceilings of the treatment rooms 4, 4 ', 4'', the distributor wall 19 and the collecting wall 26 can additionally be cleaned before new cheese wheels are stacked and brought to maturity.
  • the training shown the distribution wall 19 and the collecting wall 26 an exact and easily controllable cleaning required for food businesses.
  • the above-mentioned method and the associated device can also be used for other biological products.
  • the cultivation of mushrooms, preferably mushrooms, and the cultivation of tropical plants should be mentioned in particular.
  • the biological products are preferably aligned with their smaller contact surfaces transversely to the displacement flow, so that as little turbulence as possible arises from the biological products stored on the racks 29 and still a low-turbulence displacement flow 22 in the vicinity of the collecting wall 26 remains.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
EP96114393A 1995-09-21 1996-09-09 Procédé de climatisation d'une enceinte de traitement et dispositif pour réaliser le procédé Withdrawn EP0789198A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH670/95 1995-09-21
CH67095 1995-09-21

Publications (2)

Publication Number Publication Date
EP0789198A2 true EP0789198A2 (fr) 1997-08-13
EP0789198A3 EP0789198A3 (fr) 1999-05-19

Family

ID=4192424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96114393A Withdrawn EP0789198A3 (fr) 1995-09-21 1996-09-09 Procédé de climatisation d'une enceinte de traitement et dispositif pour réaliser le procédé

Country Status (2)

Country Link
EP (1) EP0789198A3 (fr)
ES (1) ES2108665T1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1302726A1 (fr) * 2001-10-15 2003-04-16 Fläkt Woods AB Dispositif de ventilation et dispositif de filtre pour celle-ci
DE10164321C1 (de) * 2001-12-28 2003-07-10 Carsten Schroeter Vorrichtung zur Klimatisierung eines insbesondere kleinen Raumes und Klimaschrank mit einer derartigen Vorrichtung
WO2003083375A1 (fr) * 2002-04-02 2003-10-09 Pms Klimatechnik Gmbh Plafond a grille paralume a fonction de refroidissement, de chauffage et de ventilation
FR2841737A1 (fr) 2002-07-05 2004-01-09 Bel Fromageries Procede de maturation sous atmospheres controlees de fromages dans une meme enceinte
FR2841736A1 (fr) 2002-07-05 2004-01-09 Bel Fromageries Systeme de maturation de fromages et caisson correspondant
WO2008148820A1 (fr) * 2007-06-04 2008-12-11 Institut National De La Recherche Agronomique Nouveau procédé d'affinage du fromage et dispositif de mise en œuvre dudit procédé
DE202009012580U1 (de) 2009-09-16 2010-02-25 Bekhiet, Fauzi Raum und dessen Klimatisierung zur Durchführung von Stabilitätstests von Produkten und Substanzen
NL2004886C2 (nl) * 2010-06-14 2011-12-15 Jong Air B V Luchtverversingsysteem en werkwijze.
DE102013018587A1 (de) 2013-11-04 2015-05-07 Mohamed Bekhiet Klimagerät für Labore

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835758A (en) * 1973-09-13 1974-09-17 J Bean Dwelling space air condition control and air change control system
FR2232371A1 (fr) * 1973-06-06 1975-01-03 Ciba Geigy Ag
FR2608260A1 (fr) * 1986-12-12 1988-06-17 Seriaco Paroi perforee servant a insuffler de l'air dans une enceinte

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2232371A1 (fr) * 1973-06-06 1975-01-03 Ciba Geigy Ag
US3835758A (en) * 1973-09-13 1974-09-17 J Bean Dwelling space air condition control and air change control system
FR2608260A1 (fr) * 1986-12-12 1988-06-17 Seriaco Paroi perforee servant a insuffler de l'air dans une enceinte

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1302726A1 (fr) * 2001-10-15 2003-04-16 Fläkt Woods AB Dispositif de ventilation et dispositif de filtre pour celle-ci
DE10164321C1 (de) * 2001-12-28 2003-07-10 Carsten Schroeter Vorrichtung zur Klimatisierung eines insbesondere kleinen Raumes und Klimaschrank mit einer derartigen Vorrichtung
WO2003083375A1 (fr) * 2002-04-02 2003-10-09 Pms Klimatechnik Gmbh Plafond a grille paralume a fonction de refroidissement, de chauffage et de ventilation
FR2841737A1 (fr) 2002-07-05 2004-01-09 Bel Fromageries Procede de maturation sous atmospheres controlees de fromages dans une meme enceinte
FR2841736A1 (fr) 2002-07-05 2004-01-09 Bel Fromageries Systeme de maturation de fromages et caisson correspondant
WO2008148820A1 (fr) * 2007-06-04 2008-12-11 Institut National De La Recherche Agronomique Nouveau procédé d'affinage du fromage et dispositif de mise en œuvre dudit procédé
EP2014156A2 (fr) * 2007-06-04 2009-01-14 Institut National De La Recherche Agronomique Nouveau procédé d'affinage du fromage, et dispositif de mise en oeuvre de ce processus
EP2014156A3 (fr) * 2007-06-04 2009-08-26 Institut National De La Recherche Agronomique Nouveau procédé d'affinage du fromage, et dispositif de mise en oeuvre de ce processus
DE202009012580U1 (de) 2009-09-16 2010-02-25 Bekhiet, Fauzi Raum und dessen Klimatisierung zur Durchführung von Stabilitätstests von Produkten und Substanzen
NL2004886C2 (nl) * 2010-06-14 2011-12-15 Jong Air B V Luchtverversingsysteem en werkwijze.
DE102013018587A1 (de) 2013-11-04 2015-05-07 Mohamed Bekhiet Klimagerät für Labore

Also Published As

Publication number Publication date
ES2108665T1 (es) 1998-01-01
EP0789198A3 (fr) 1999-05-19

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