DE8316269U1 - FILTER HOLDING AND REPLACEMENT DEVICE - Google Patents

Description

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Description:. I.

The innovation relates to the filter, holder and food device, in which the filter consists of dust and aerosols

taking disk is made of filter material, the «

between the end faces of two funnels to be slipped onto one another and forming the filter housing

is supported, which are detachable from each other and from which _f

at least one is firmly held. j

For monitoring the environment as well as the internal |

borrowed area of preferably nuclear power plants is>:

it is necessary to extract the air as well as the room air of this ■

To examine systems for radioactive components, dusts and aerosols ]. What has to be ensured here is that

the radiation exposure for people inside and outside ^! half of the monitored areas does not exceed the legally prescribed maximum values. Parts of the waste, environmental and spatial j air sucked in with the bypass stream by means of pumps and from DIE * sem reason! a filter that collects dust and aerosols, among other things. The filter is | removed from the filter housing and examined, | opening the filter housing, removing the filter and replacing it with a fresh filter. | This process is done by hand and is usually carried out by.] A single person who has to work quickly, especially when it comes to replacing the filter? meets. ,,

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The task set for the innovation now consists in the e.g. Filter ■ holding and changing device these To simplify the changing process in such a way that the disk made of filter material can be replaced in three simple steps and the filter housing is ready for use again.

The solution is described in the characterizing features of claim 1.

The other claims reflect advantageous forms of the innovation.

The innovation is explained in more detail below using an exemplary embodiment by means of the figure, which shows the Representing a view of a filter holding and changing device with the filter housing open.

The filter housing according to the figure consists essentially of two funnels 1 and 2, the end faces 3 and 4 of which Form rings that are tight in the closed state of the housing with the interposition of the edge of the filter paper 5 come to rest on each other. It is possible, the end face 3 of the lower funnel 1 with a clamped To provide network that has a support function for the filter paper 5, in the case shown the filter housing is opened and a change of the filter paper 5 is possible or has already been carried out.

Dör neck 9 of the upper funnel 2 is used by one Clamp 6 includes and a web 7 on one

I fixed rod 8 supported. The neck 10 of the

I lower funnel 1 is in the same way by a

| Includes bracket 11, which is attached to a lifting and lowering mechanism

% nism 12 is attached directly. The lifting and lowering

I mechanism 12 for the lower hopper 1 is itself

ι also at a distance from the upper bracket 6 on the

I bar 8 supported. The rod 8 can be on a wall

I can be fixed vertically (or horizontally).

\ The raising and lowering mechanism consists essentially

I consists of two parts 13 and 14, which by means of a knee

I-hebeis 15 relative to each other against the force of a

f spring 16 can be moved, one part

I 13 is firmly suspended from the rod 8. The other

I part 14 is connected to the bracket 11 and can

I by means of the toggle lever 15, which is attached to both parts 13

I and 14 pivotably arranged on bearings 17 and 18

I is to be moved up and down. Here the

I lower funnel 1 each in the closure resp.

\ Brought to the open position. The knee 23 of the knee

I hebeis 15 is located between its two

% happy 17 and 18. In the locked state of the FiI-

tergehäuses is the handle 19 of the toggle lever

15 in a subscript, while the spring

16 is compressed and the clamp 11 presses the lower funnel 1 against the upper funnel 2.

So that this opening and closing process of the filter housing can be carried out without problems, are on the Front side 3 of the lower funnel 1 at least three upstanding pins 20 attached, their length and Position is dimensioned such that it is in corresponding openings 21 of the end face 4 of the upper funnel 2 can run and both funnels 1 and 2 safely guide each other in their relative movements. A tilt is excluded And due to the force exerted by the spring 16, the pressure on both end faces is 3 and 4 guaranteed with a tight interposition of the filter paper 5. Both funnel necks 9 and are preferably connected to the rest of the bypass pipe system via bellows 22. When open of the filter housing, the filter paper 5 can be removed with a handle or replaced with a new one.

Claims (1)

• · «4t« Core research in Karlsruhe, May 27, 1983 Karlsruhe GmbH PLA 8319 Ga / he ANR Ioo2597 Protection claims: 1. Filter holding and changing device in which the filter is off consists of a dust and aerosol absorbing disc made of filter material, the filter housing between the end faces of two to be placed on top of each other forming funnels, which are detachable from each other and of which at least one is supported on feet, characterized in that the other funnel (1) via its funnel neck (9) on one in the axial direction with respect to the common axis of symmetry of the two funnels (1 and 2) movable holder (11-15) is arranged, and that on one of the funnel (1) guide elements (20) are provided, the relative to each other directed, unaligned movement of the allow both funnels (1 and 2). 2. Filter holding and changing device.nach claim 1, characterized characterized in that the movable holder (11) the funnel neck (lo) of the second funnel (1) clasped, and that a toggle lever mechanism (13 19} is provided with which the relative movements the movable holder (11) can be executed. • 111 ■ (111 ' . Filter holding and changing device according to claims 1 and 2 characterized in that the guide elements are at least three on the end face of the one filter (1) are fixed pins (20) with correspondingly arranged openings (21) in the The face of the other funnel (2) correspond. 4. Filter holding and changing device according to claim 1 or one of the following, characterized in that the holders (9; 13-19) for the two funnels (1, 2) are arranged on a common, fixed rod (8).