Produits et services

(1) Installations and equipment for cooling and freezing, namely, air generating apparatus for generating air walls or air streams for thermal separation of air spaces having different relative air temperatures for cold storage units and refrigerated warehouses and in retail, commercial and industrial usage; refrigerators, freezers; refrigerating chambers; cooling cabinets and cooling showcases namely refrigerated display case cooling and air flow system comprised of an air generating apparatus for generating air walls or air streams for thermal separation of air spaces having different relative air temperatures.

Produits et services

Apparatus and installations for generating and moving air; Apparatus and installations for producing and creating high-pressure air curtains.

Abrégé

The invention relates to a device (1) for generating an air wall across a passage opening (100), which passage opening (100) has lateral edges and a top edge, comprising: a first and second blowing device (10, 20), arranged at the lateral edges in such a way that planar air streams are blown over the height and respective parts of the width of the passage opening (100); wherein the device (1) is provided with regulating means (13; 23) for regulating the blowing speeds of the blowing devices; and wherein the first blowing device (10) and the second blowing device (20) are provided with secondary blower slits (12; 22) which are parallel to the respective primary blower slits (11; 21), which secondary blower slits (12; 22) are connected to secondary means for drying and/or heating air to be blown.

Classes IPC  ?

• F24F 9/00 - Utilisation de courants d'air comme écrans, p. ex. rideaux d'air

Produits et services

Installations and equipment for cooling and freezing; refrigerators, freezers; cooling cabinets, cooling showcases, refrigerating chambers.

Produits et services

Air generating apparatus for generating air walls or air streams for thermal separation of air spaces having different relative air temperatures for cold storage units and refrigerated warehouses and in retail, commercial and industrial usage; refrigerated display case cooling and air flow system comprised of an air generating apparatus for generating air walls or air streams for thermal separation of air spaces having different relative air temperatures

Abrégé

A device for generating an air wall comprises a primary blower slit for generating a flat primary air stream in a passage opening mutually separating two spaces with different temperatures. Two adjacent air streams with the same direction and speed are added to the primary air stream. The primary air stream has a temperature between those of the secondary air streams. The absolute humidity of the air of the primary air stream is at least equal to that of the cold secondary air stream and lower than that of the warm secondary air stream. The air speed of the primary air stream amounts to at least 15 m/s. The width of the primary blower slit lies in the range of 15-40 mm. The length of the primary blower slit in the direction of the air stream lies roughly in the range of 5-40 cm, preferably 10-30 cm. No mixing occurs hereby occurs between the primary air stream Sp and the second secondary air stream Ss2 on the side of the warm space, whereby condensation (misting and vaporization) and/or sublimation (icing) is prevented.

Classes IPC  ?

• F24F 9/00 - Utilisation de courants d'air comme écrans, p. ex. rideaux d'air
• F24F 3/16 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par purification, p. ex. par filtrageSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par stérilisationSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par ozonisation

Abrégé

The invention relates to a blower unit for generating an air wall for thermal separation of the air in a first relatively cold space from the air in a second relatively warm space, for instance the surrounding area, which spaces are mutually connected by a passage opening, the blower unit comprising: an elongate blower unit positioned on one side of the passage opening and comprising fan means and a blower slit for generating a flat air stream directed toward the opposite side of the passage opening. The unit has the special feature that the speed of the air in the air blower slit amounts to at least 15 m/s; the width of the blower slit lies in the range of 5-40 mm; the length of the blower slit in the direction of the air stream lies in the range of 5-100 cm; the cavity has a prismatic form; connecting to which cavity on one side is at least one air feed, extending substantially over the whole longitudinal dimension of the cavity, and on the other side the blower slit; in the upstream zone of which cavity an airflow resistance is present; and the zone of which cavity downstream of the airflow resistance has a form narrowing in the flow direction.

Classes IPC  ?

• F24F 9/00 - Utilisation de courants d'air comme écrans, p. ex. rideaux d'air

Abrégé

A device for generating an air wall in an upright refrigerated cabinet (22) comprises a primary blower slit for generating a primary air stream (30) in the frontal opening (34) of the upright refrigerated cabinet which forms a thermal separation between the low inside temperature and the ambient air of a higher temperature. No mixing occurs between the primary air stream (30) and the secondary, optionally forced air streams (1, 9) added thereto. The thereby realized great effective heat resistance achieves that the supply of heat from the ambient air to the interior space of the refrigerated cabinet is considerably limited.

Classes IPC  ?

• A47F 3/04 - Vitrines ou meubles d'exposition à air conditionné ou réfrigéré
• F25D 23/02 - PortesCouvercles

Abrégé

A device for generating an air wall comprises a primary blower slit for generating a flat primary air stream in a passage opening mutually separating two spaces with different temperatures. Two adjacent air streams with the same direction and speed are added to the primary air stream. The primary air stream has a temperature between those of the secondary air streams. The absolute humidity of the air of the primary air stream is at least equal to that of the cold secondary air stream and lower than that of the warm secondary air stream. The air speed of the primary air stream amounts to at least 15 m/s. The width of the primary blower slit lies in the range of 15-40 mm. The length of the primary blower slit in the direction of the air stream lies roughly in the range of 5-40 cm, preferably 10-30 cm. No mixing occurs hereby occurs between the primary air stream Sp and the second secondary air stream Ss2 on the side of the warm space, whereby condensation (misting and vaporization) and/or sublimation (icing) is prevented.

Classes IPC  ?

• F24F 9/00 - Utilisation de courants d'air comme écrans, p. ex. rideaux d'air

Produits et services

Installations and equipment for cooling and freezing; refrigerators, freezers; cooling furniture, cooling showcases, cold stores.