DEVICE FOR GENERATION OF INERT FOAM IN MINE Russian patent published in 1995 - IPC

Abstract RU 2027019 C1

FIELD: fighting of underground fires. SUBSTANCE: device for generation of inert foam in mine includes diffuser with louvers and foam generating member, foam pipe with jet connected with turning lever and louvers. Diffuser is made in form of tubular taper coil connected with its outlet to flat helical heat exchanger communicated with annular spraying header of inert gas. Inlet channel pipe of tubular taper coil is communicated with liquid nitrogen supply pipeline. EFFECT: higher efficiency. 3 cl, 1 dwg

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RU 2 027 019 C1

Authors

Chuprikov A.E.

Dates

1995-01-20—Published

1992-02-19—Filed