US 2003/0153260 A1 · Method for providing clean air in premises and device for carrying through said method

Abstract

The present invention relates to a method and a device for providing clean air in premises, wherein impure air is received or taken in into an air treatment device (1) from lower portions of the premises and cleaned or purified therein. A first partial flow (DS1) of air received or taken in into the air treatment device (1) is cooled, while a second partial flow (DS2) of air received or taken in into said air treatment device (1) is heated. The cooled air (KL) in the first partial flow (DS1) is brought to flow, through at least one cell body member (17) in at least one air discharge unit (15), slowly downwards without substantial co-ejection of surrounding air to define at least one zone of clean air (RZ) in the premises beneath the air discharge unit (15). The heated air (VL) in the second partial flow (DS2) is discharged, through an air discharge opening (16), in an upwards direction such that said heated air (VL) rises in the premises at low speed.

Claims39

Dependent claims

Method for providing clean air in premises, wherein impure air is received or taken in into an air treatment device (1) from lower portions of the premises and cleaned or purified therein,

characterized by
cooling a first partial flow (DS1) of air received or taken in into the air treatment device (1) to a temperature that is lower than a temperature measured outside the air treatment device (1), while heating a second partial flow (DS2) of air received or taken in into said air treatment device (1),
bringing the cooled air (KL) in the first partial flow (DS1) to flow in such a way, through at least one cell body member (17) in at least one air discharge unit (15), that the rate of the cooled air becomes low and thereby substantial co-ejection of surrounding impure air is avoided to define at least one zone of clean air (RZ) in the premises beneath the air discharge unit (15), and
discharging, through an air discharge opening (16), the heated air (VL) in the second partial flow (DS2) in an upwards direction such that said heated air (VL) rises in the premises at low speed.

1 more element

Air treatment device for providing clean air in premises,

wherein the air treatment device (1) includes means (8, 9) for taking in impure air (OR) from lower parts of the premises, and
wherein the air treatment device (1) further includes an air purifying device (11) for cleaning said impure air (OR) and at least one air discharge unit (15) having at least one cell body member (17) which is provided to emit or discharge cooled air (KL) downwards in the premises,
characterized in
that the air treatment device (1) also includes an air passage (10) which at least partly is divided in at least first and second passage branches (10a, 10b) for first and second partial flows (DS1 and DS2) of air taken in into the air treatment device (1),
that in a first passage branch (10a) there is provided a cooling device (13) for cooling the first partial flow (DS1) flowing through said first passage branch (10a),
that said first passage branch (10a) communicates with the air discharge unit (15) to guide cooled air (KL) thereto,
that in the second passage branch (10b) there is provided a heating device (14) for heating the second partial flow (DS2) flowing through said second passage branch (10b),
that said second passage branch (10b) communicates with means (16) for letting out or discharge warm air (VL) from the heating device (14),
that said means (16) for discharging warm air (VL) are located at substantial distance from the air discharge unit (15) such that the cooled air (KL) leaving the air discharge unit (15) and the hot or warm air (VL) leaving said means (16) are discharged into different parts of the premises,
that the cooling device (13) is adapted to cool air to such a temperature relative to the temperature of the air in the premises into which the cooled air (KL) shall be discharged, that said cooled air (KL) slowly descends without substantial co-ejection of surrounding impure air for defining a clean air zone (RZ) beneath the air discharge unit (15), and
that the heating device (14) is adapted to heat air to such a temperature relative to the temperature of the air in the premises into which the hot air (VL) is discharged, that said warm air (VL) slowly rises upwards towards the ceiling regions (TR) of the premises.

8 more elements

Dependencies are inferred from the claim text.

Method for providing clean air in premises and device for carrying through said method

Life of this patent

Method for providing clean air in premises and device for carrying through said method

Life of this patent

Abstract

Claims39