Apparatus for destroying microorganisms

Radiant energy – Fluent material containment – support or transfer means – With irradiating source or radiating fluent material

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Details

250436, 250437, 2504551, G01N 2101, H01J 3716

Patent

active

046211950

DESCRIPTION:

BRIEF SUMMARY
Such material as liquids (water) and gases (air) can be cleansed of undesirable microorganisms by irradiation with ultra-violet light of wave-lengths shorter than 320 nm. Irradiation is effected with the aid of a so-called ultra-violet lamp. The present invention has been developed in conjunction with such bacteria-destroying apparatus.
In order to destroy bacteria efficiently, it is necessary to expose the treated material to radiation from a UV lamp over a long period of time. The longer the exposure time, the greater the effectiveness in destroying bacteria. In order to obtain an effective exposure time, the radiation chamber may incorporate either a single long UV-tube or a plurality of shorter tubes. This latter alternative, however, increases plant costs to an unacceptable level. It is the problem of plant costs which has engendered the present invention.


SUMMARY OF THE INVENTION

Apparatus for destroying microorganisms by irradiation with ultra-violet light from a UV-lamp in a major irradiation chamber. The major chamber is divided into minor chambers by means of partition walls. The walls are provided with through-flow openings at their alternate ends whereby the bacteria-carrying medium is conducted reciprocatingly along the UV-lamp and thereby subjected to intensive radiation therefrom over a relatively long period of time.
The apparatus will now be described with reference to the accompanying drawings, in which
FIG. 1 is a perspective view of an irradiation chamber;
FIG. 2 is a horizontal sectional view taken on the line II--II in FIG. 1, and
FIG. 3 is a longitudinal sectional view taken on the line III--III in FIG. 2.
Since in principle, the apparatus can be used to treat both liquids and gases, there will be first described a plant for treating liquids, followed by a description of a gas-treating plant.


IRRADIATION OF LIQUIDS

The irradiation chamber, also known as a UV-chamber, comprises a substantially vertically arranged cylindrical vessel 1, the cylinder wall 1' of which is sealed at both ends; at the bottom by means of a permanent wall 2 and at the top by means of a tightly fitting cap 3 provided with requisite sealing means. The irradiation chamber is made of a material suitable for ultra-violet radiation.
Placed in a known manner centrally of the chamber is a quartz-crystal glass tube 4 having a UV-lamp 5 arranged therein. The quartz-crystal glass tube is completely sealed at the bottom thereof, and extends substantially to the bottom 2 of the chamber 1, where it is anchored in a known manner. The quartz-crystal glass tube 4 extends upwardly through the cap 3, which is provided with suitable sealing means not shown.
The UV-lamp 5 is mounted within the quartz-crystal glass tube 4, and the length dimensions of the lamp are substantially the same as those of the glass tube 4. The UV-lamp 5 is connected to a lamp holder in a known manner, not shown. Neither are those electrical connections shown which are known or which are not directly associated with the concept of the invention. The quartz-crystal glass tube 4 together with the UV-lamp 5 can be readily mounted in position and dismantled when it is necessary to clean, primarily, the quartz-crystal glass tube. The UV-lamp can be changed in the normal fashion.
The radiation chamber 1 can be provided, in a known manner, with a photocell arranged to function as a signal guard and a means for monitoring purification.
In accordance with the invention there is arranged within the radiation chamber 1 five vertical walls 6, 7, 8, 9 and 10. The walls 6-10 extend radially in the chamber 1 and are sealingly connected to the cylinder wall 1', and the bottom wall 2 thereof. The tops of the walls are sealingly connected to the cap 3 of the chamber 1 through the agency of separate sealing means, such as the illustrated seal 13 for example. An annular gap has been left between the walls 6-10 inclusive and the quartz-crystal glass tube 4, to facilitate assembly and dismantling of the radiation chamber.
In this way, in the illustrated embodiment the maj

REFERENCES:
patent: 1196481 (1916-03-01), Von Recklinghauser et al.
patent: 1200940 (1916-10-01), Henri et al.
patent: 1266803 (1918-05-01), Henri et al.
patent: 1473095 (1923-11-01), Henri et al.
patent: 1486473 (1924-03-01), Ailhaud
patent: 2065055 (1936-12-01), Berndt et al.
patent: 3079498 (1968-02-01), Ruffin
patent: 4008045 (1977-02-01), Free
patent: 4151090 (1979-04-01), Brigante
patent: 4278549 (1981-07-01), Abrams et al.

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