FIELD: building, particularly chimneys for atomic plant stations and nuclear fuel processing plants to periodic drain air after cleaning thereof from radioactive and hazardous materials by filtering air and to provide emergency effluent of above substances in gaseous and aerosol state.
SUBSTANCE: chimney comprises shell-shaped head and main annular plate secured to shell. Head is provided with connection pipe coaxial to head so that a gap is formed in-between. Head has additional annular plate secured over main annular plate. Formed between main and additional plates is chamber communicating chimney hollow with atmosphere. Lower annular plate has edge bent upwards.
EFFECT: increased reliability of radioactive and hazardous substances effluent due to dissipating thereof under windless conditions, provision of air cavity disturbing at chimney head under windy conditions and, as a result, prevention or minimizing of radioactive gas concentration in chimney during normal operation and additional dissipation of above substances during emergency effluent thereof.
2 cl, 4 dwg
| Title | Year | Author | Number |
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