| 摘要 |
FIELD: oil producing, oil refining and chemical industries, gathering of oil, preparation, transportation and storage of oil and oil products. SUBSTANCE: unit changing direction of air stream from reservoir breathing valve has vertical branch pipe with slot in lower portion before gas deflector in which ratio of slot height in each point on branch pipe circumference to length of section, passing from this point through axis of branch pipe to reservoir wall, is of constant value. Gas deflector is made in the form of conical surface with apex angle equal to 140-150 deg. Area of slot of branch pipe is equal to area of its cross section. EFFECT: enhanced efficiency of reservoir, reduced evaporation losses and harmful outbursts, enhanced reliability of operation. |
