SU66657A1 - Filter for gas analyzers - Google Patents

Description

The invention consists in the construction of a filter for the cleaning of flue gases taken in a; in addition, gas analyzers for the determination of CO 2 CO + H2. Usually, expensive corundum and ceramic filters are used for this purpose, which have always been lacking. There have been attempts to manufacture iodine filters from diatom bricks. In addition to the high reject rate in their manufacture, 1 on TOiK-ajpHOMi (up to 50-60%) and the associated increase in the cost of filters, and the need for special equipment, pressure and high | validation: the bath labor force, these filters had a number of drawbacks (in : 1) it was not possible to obtain filters that are sufficiently porous and with low resistance, 2) filters were used up with ash, 3) cracked and destroyed at (cutting out their temperature), 4) were destroyed during regeneration by air or pOMOMi.

In the sand filter design proposed by the author as a filtering material, the disadvantages listed above are essentially absent.

In the manufacture of filters does not require machine equipment. The filter is mechanically durable, it does not deform three temperature changes (up to 600 ° C), it is easy to blow first, it is weakly subject to abrasion and allows for the use of air 1 or steam with a pressure of 1 to 12 kg / cm during regeneration.

Due to the large porosity of the proposed

filter is much smaller than the best corundum filters, with excellent gas cleaning.

In contrast to other substitutes (filters with scraps, chips, etc.), which increase the inertia of devices, the sand filter is low-inertia.

The manufacture and assembly of the filter (see drawing) is carried out as follows. To perforated iron tube / with a diameter of 12 mm, weld 4 with a gas-piston / o-coupling 5. A tightly wound coil 5 of iron annealed wire with a diameter of I.SMM is attached to the tube. External spiral.2 from iron wire with diameter of rum. 4 MM (set, as shown in the drawing, and the space 1 between

The spirals are filled with laminated quartz sand 5 with pasLMepoM grains from 0.3 to 1.5 mm. After closing the lid 6 and shaking it with a wedge-check OO 7., through the hole in the lid 6, fill the line, after which the hole is closed with an asbestos plug.

The outlet (in the diesta of the wedge passage) is also compacted with asbestos. The assembled filter is mounted on a conventional gas intake tube.

The dusty gas is the air flow between the turns of helix 2 and is filtered through a layer of sand between helixes 2 and 3. Pass between the turns of C1 dehliel 3, the gas passes through the tube opening / enters the gas intake tube of the gas analyzer.

PRIORITY AREA

Filter for gas analyzers with sand as a frivolous material, one t. and and with

the fact that it is made in the form of qi, sndra. consisting of a central perforated tube / and cylindrical springs 2 and 3 which are concentrically mounted on it, the annular space between which is filled with the Net.

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