Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1992-06-19
1993-07-13
Miles, Tim
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
239 20, 239193, 261 37, F24F 604
Patent
active
052269353
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a device for improving indoor air-environment and in particular for providing a suitable air humidification and absorption of undesired substances as wall as creating a pleasant sight and sound environment, which device comprises a wall and a water pump connected to means for forming a curtain-like stream of water at the upper end of the wall, and a tank located at the lower end of the wall for collecting and recirculating the water to the water pump.
Concurrently with the increasing use of electric appliances and machines in offices and shop premises, major problems of maintaining a healthy and pleasant indoor air-environment in such premises have emerged. The problems are far more pronounced in computer rooms in which large computers are installed which are to operate 24 hours a day, and from which large amounts of air and heat are emitted.
Combined with a greater understanding of the problems facing i.a. allergic subjects this has created a great need for developing devices which can effectively influence the indoor air-environment.
It is known to influence the indoor air-environment by installing central air-condition systems which serve to provide a suitable renewal of air in the rooms connected to the system and to ensure that the room air has a suitable temperature and humidity.
This is effected by means of a system of air channels which are often mounted covered and therefore difficult to gain access to, thereby making them difficult to maintain and clean.
Hence, fungus growth may develop in such channels and in that case fungus spores will quickly spread to all the rooms connected to the system. Furthermore, such systems often give rise to draught resulting in i.a. colds or acute or chronic sinus infections.
Small indoor fountains are known consisting of a tank and a water pump, the suction side of which being connected to the tank and the pressure side being connected to one or more nozzles for producing one or more water jets having such a direction that the water falls back into the tank.
Such fountains produce a plashing or purling sound which is normally perceived as pleasant and soothing and which, to a certain extent, masks sounds which are perceived as unpleasant.
A certain evaporation will occur when the water moves through the air, and to a certain extent the known fountains thus contribute to an increase in the air humidity in the rooms in which they are located.
During the movement of the water some of the components of the room air may be torn out by and optionally absorbed in the water, and consequently a certain purification of the room air is obtained.
However, as the surface of the water jets and drops formed by such fountains is normally small relative to the amount of air present, the air humidification and air purification obtained with the fountains are normally insignificant.
Such indoor fountains suffer from the drawback that they should be placed in a certain distance from other furniture because in case of draught there is a risk that the water jets or drops may spread to a larger area.
Thus, these indoor fountains are not suitable for arrangement of e.g. offices or shop premises.
As for the prior art technique, further reference is made to U.S. Pat. No. 4,747,538 which discloses a device of the type mentioned above. In this known device the wall consists of rectangular plates which are inclined such that the lower edge of one plate overlaps the upper edge of the plate placed below, which in turn at its lower end overlaps the upper edge of the plate placed below. According to this prior art technique the means for forming the curtain-like stream of water are embodied as a row of holes or a slit in a trough into which water is pumped.
The row of holes or the slit is located proximate to the front of the upper edge of the upper plate and in such a manner that the outflowing water immediately hits the plate in question and subsequently flows down along the front of the plate, then immediately down onto the subsequent plate for finally to be ca
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Bernt Bjarne
Hessel Lasse
Wolff Per
Miles Tim
Skandinavisk Miljo System A/S
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