SU404492A1 - HEAT RESISTANT AEROSOL FILTER - Google Patents

Description

one

This invention relates to an anti-aerosol protection technique and can be used in industries where it is necessary to trap fine aerosols from high-temperature gaseous emissions, such as toxic or radioactive emissions from reactors of nuclear power plants.

A filter for cleaning gases is known, comprising a housing with gas inlet and outlet connections, a set of sealing rings between which the filtering material is clamped.

However, in the known filter there is a different compression of the filtering material (at the places of its contact with the rings) along the height of the filter and a relatively fast leakage at the places where the filtering material abuts the rings, especially under conditions of high temperatures and vibration loads.

The purpose of the invention is to increase the filtering characteristics and reliability during operation under the conditions of vibration and shock loads.

To do this, in the proposed filter, sealing rings at one end are provided with annular grooves in which wavy spacer springs are placed, and the opposite ends of the rings are made as part of the surface of a circular cone of rotation, with the vertex facing the inside of the outer rings and inside the rings .

FIG. 1 shows the proposed filter, a longitudinal section; in fig. 2 — node I in FIG. one.

The filter consists of a housing 1 with a lid 2, nozzles 3 and 4 of the inlet and outlet of gases, a central guide pipe 5 with windows 6. The inner sealing rings 7 are mounted on the central pipe 5, and the outer sealing rings 8 are placed along the outer perimeter of the housing 1, the radial the movement of which is eliminated by the guides 9. The filter material 10 is clamped between the outer 8 and inner 7 sealing rings, the latter being provided at one end with annular grooves 11, in which wavy spacers are placed The opposite ends of the rings 7 and 8 have a smooth surface 13, made as part of the surface of a circular cone of rotation, with the top of the cone facing the inside of the outer rings 8 and the outside of the inner rings 7.

The filter material 10 on the gas outlet side is provided with a support grid 14 in order to prevent the filter material 10 from breaking at increased resistance

filter, and for reliable sealing of the internal cavity of the filter from the atmosphere, the cover 2 is pressed against the housing 1 through the gasket 15 with the help of studs 16 with nuts 17.

The filter works in the following way.

Dust gas enters through the inlet 3, filtering material 10 passes, where the hard particles are separated, and the cleaned leaves through the central pipe 5 through the outlet 4. Due to uniform compression by the sealing rings 7 and 8, the package of filtering material 10 is constant and time, compressive load on each sealing unit, which allows the proposed filter to operate at high as well as at normal temperature of gases entering the cleaning.

Subject invention

A heat-resistant aerosol filter comprising a housing with gas inlet and outlet nozzles, a set of sealing rings between which the filtering material is clamped, characterized in that, in order to enhance the filtering characteristics and reliability during operation under vibration and shock loads, sealing rings from one end circular grooves in which wavy spacer springs are placed, and the opposite ends of the rings are made as part of the surface of a circular cone of rotation, with the outer rings tsakh its vertex is turned inside the ring, and in the inside - out.

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