Filters For Cleaning Gases From Radioactive Aerosols
Metal ceramic filters are designed for deep cleaning of industrial gases and air from radioactive aerosols and radioactive particles, as well as for separation of dust and gas mixtures in gas-plasma dry-conversion facilities for uranium hexafluoride.
Terms of Use
Operating temperature: not more than 750 ° С
Relative humidity: not more than 80%
The efficiency of purification from particles with a size of ≥ 0.15 μm: not less than 99%
Dependence of pressure drop on gas filtration rate up to 1 m / s: linear
Advantages
- high mechanical strength;
- corrosion resistance to filtered gases, chemically inert to the material of the filter element;
- low pressure drops at high gas flow rates;
- long service life, the ability to regenerate and restore characteristics.
Material used
- nickel;
- steel 20;
- nickel mesh and sintered nickel powder;
- copper (for mounting rings).
SPECIFICATIONS
| Filter 27459-0-0 | Filter 27318-0-0 | |
| Working environment | gas | gas |
| Temperature, °С | от 10 до 250 | from 10 to 40 |
| Dustiness, g/m³, not more than | 0,1 | 0,1 |
| Specific activity, Bq / kg (Ki / g), not more than | 3,4ˣ10^6 (9,8ˣ10^-5) | 2,2ˣ10^6 (5,95ˣ10^-5) |
| Solid phase of the working medium | dust | dust |
| Bulk density, g / cm³, not more than | 6 | 6 |
| Uranium enrichment -235,% of mass, not more than | 97 | 38 |
| Aerodynamic characteristics | ||
| Consumption of dust-gas flow, m³ / h, not less than | 30 | 185 |
| Initial resistance of the filter, Pa (mmW), not more than | 736 (75) | 588,4 (60) |
| Permissible filter resistance Pa (mm Hg) | 2942 (300) | 2451,7 (250) |
| Number of filter elements, pcs. | 9 | 35 |
| Material of filter elements | nickel | nickel |
| Material of parts in contact with the working medium | Steel 12X18H10T | Steel 12X18H10T |
| Designated service life, years, not less than | 10 | 10 |
| Regeneration | ||
| Applied gas | nitrogen | air |
| Volume of the receiver for regeneration, m³ (L) | 0,003 (3) | 20ˣ10^-3 (20) |
| Working pressure of gas in the receiver, MPa | from 0,4 to 0,5 | from 0.5 to 0.6 |
| Volume of a dust collector, m³, (L) | 0,003 (3) | |
| Overall dimensions, mm | 630ˣ320ˣ1215 | 1500ˣ878ˣ2125 |
| Filter weight, kg | 80 | 200 |
| Parameters of the BB in accordance with ABY 06-06-09 | ||
| Type of equipment | "B" | "B" |
| Safety diameter, mm | 100 | 140 |