DE2338744A1 - Recirculating filter for cleaning room air - has viscous elements dipping into container and projecting into air stream - Google Patents

Abstract

The filter has a rectangular housing ith an entry at one end and discharge louvres at the opposite end. A fan at the entry end blows air through the housing. In the bottom of the housing is a container filled with filter liquid and having a cover. Filter elements project through the cover and contain filter material which absorbs the liquid by capillary action so that the upper part of each element which is in the air stream is kept soaked in filter liquid.

Description

The invention relates to an air cleaning device with a container having openings and at least an evaporation element made of absorbent material, which is located with a lower suction portion in aine in the container Immersed liquid and with an upper evaporator section from the container upwards into a ru cleaning air flow protrudes, according to patent. »ao.oo .....->« (Patent application P 22 61 040 = 8-16).

In the main patent an air cleaning device is this Proposed type in which the evaporator section

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of the evaporator element in the air duct of an air conditioning or Ventilation system is arranged. This ensures that the air flowing through the air duct is in perfect condition Condition enters the room to be ventilated.

The invention aims to apply this already proposed principle to any rooms without air conditioning and ventilation systems to make applicable. The invention is therefore intended to provide a device for air purification and odor neutralization created, which in the absence of an air conditioning and ventilation system, especially in large rooms and factory halls, Assembly halls, open plan offices and the like can be used.

In a device of the type mentioned at the outset, this object is achieved according to the invention in that containers and evaporator element are enclosed in a housing and that the housing has an air inlet on one side of the evaporator section of the evaporator element and on the opposite side has an air outlet.

Air inlet and outlet allow natural air circulation take place so that the air to be cleaned is led past the evaporator section. As with the device According to the main patent, it is of course also possible to arrange several evaporator elements in the air flow.

In a preferred embodiment, a fan is built into the housing at the air inlet, for the forced The air to be cleaned is passed through the housing.

If the air to be cleaned is exposed to different degrees of pollution, a

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Step switch provided through which the fan speed can be regulated.

In the area of the air outlet, another Proposal of the invention a protective and guide grille be attached, which is preferably removable from the housing is. On the one hand, the grille offers protection against accidental contact and, on the other hand, it allows the exiting air jet to steer in a certain direction, usually upwards. If the grille is removable from the housing, it does at the same time the interior of the housing accessible, so that the active liquid used for air purification in the container, which is to this Purpose preferably has a filling opening, filled and optionally a dirty evaporator element can be replaced and cleaned.

In an advantageous embodiment of the invention, the The air outlet direction of the protective and guide grille can be adjusted by actuating the grille, so that the circulation conditions in the room served by the device are influenced can be.

In order to be able to fill the container properly without spilling liquid, there is preferably a on the container Filling level indicator attached, which shows its degree of filling from outside.

L & s Alwwechselη or cleaning the evaporator elements can are made easier in that they are removably attached to the container. It can be with one special expedient configuration of each evaporator element in a perforated tube that can be inserted into the container be arranged.

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An 'exemplary embodiment of the invention is explained in more detail with the aid of the figures. It shows:

1 shows a schematic side view of the device according to the invention with the protection and protection removed Baffle;

FIG. 2 shows a side view corresponding to FIG. 1, but partially broken open and sectioned closed housing and

Fig. 3 is a plan view of the device.

A generally cubic housing 10, which can be used in any Rooms can be set up or hung, has an air inlet 12 on one end and on the opposite side End face an air outlet 14. In the air inlet 12 is a covering the entire area of this end face Fan 16 is used, which sucks in air from the outside and this in the longitudinal direction of the housing to the air outlet 14 promotes. The air outlet 14 is closed by a protective and guide grille 18, the slats 20 in the Figures are directed obliquely upwards. However, they are adjustable in catfish not shown, so that others The exit directions of the air are adjustable. On the front wall of the housing there is a step switch 22 for regulation the fan speed.

An elongated, flat container 24 for holding liquid active ingredient 26 is attached to the bottom of the housing. The cover 28 and an intermediate wall 30 parallel to the cover have a number of each other in pairs covering openings 32, into each of which a tubular evaporator element 33 can be inserted from above. Furthermore, the container 24 has a filling level indicator 34 protruding upward from the cover 28 and a filling opening 36 for the liquid active ingredient 26.

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As can be seen from Fig. 1, the protection «and guide grille 18 can be removed so that one end of the housing is exposed. Then a flexible filling hose 38 with funnel 40 inserted into the filling opening 36 and liquid active ingredient from a canister 42 in the funnel 40 and thus into the container 24 are filled. After filling, the filling hose 38 taken out again from the filling opening 36 and this closed. Then the protective and guide grille is back attached to the housing 10.

Each evaporator element 33 is made of Pig. 2 can be seen from a stiff, perforated tube 44 and a cylindrical part 46 made of absorbent filter material. Each evaporator element 33 protrudes with a lower suction section 48 in the liquid active ingredient 26 and with an upper evaporator section 50 in the above the container 24 located interior of the housing 10, which the air flow generated by the fan 16 passes through, so that a cleaning of this air flow on the evaporation elements he follows.

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Claims (10)

- 6 claims Lly air cleaning device with one openings Container and at least one evaporator element made of absorbent material, which is connected to a lower Suction section immersed in a liquid located in the container and with an upper evaporator section protrudes from the container upwards into an air stream to be cleaned, according to patent ............... (patent application P 22 61 040.8-16), characterized in that the container (24) and evaporator element (33) in one housing (10) are included and that the housing (10) on one side of the evaporator section (50) of the evaporator element (33) has an air inlet (12) and an air outlet (14) on the opposite side. 2. Air cleaning device according to claim 1, characterized characterized in that a fan (16) is built into the housing (10) at the air inlet (12). 3. Air cleaning device according to claim 2, characterized in that the fan speed by means of a step switch (22) is adjustable. 4. Air cleaning device according to one of claims 1 to 3, characterized in that a protective and guide grille (18) is attached in the area of the air outlet (14) is. 5. Air cleaning device according to claim 4, characterized characterized in that the protective and guide grille (18) can be removed from the housing (10). 509807 / 0H1 23387U 6 «Air cleaning device according to claim 4 or 5, characterized in that the air outlet direction of the protective and guide grille (18) is adjustable by actuating the grille. 7 .. Air cleaning device according to one of the preceding Claims, characterized in that the container (24) has a filling opening (36) for liquid active substance (26) having. 8, air cleaning device according to one of the preceding Claims, characterized in that a level indicator (34) is attached to the container (24). 9. Air cleaning device according to one of the preceding Claims, characterized in that several evaporator elements (33) are detachably attached to the container (24) are. 10. Air cleaning device according to claim 9, characterized in that the filter material (46) of each evaporator element (33) is arranged in a perforated tube (44) which can be inserted into the container (24). B0980770U1