SAFETY VALVE WITH RUPTURE ELEMENT Russian patent published in 2010 - IPC F16K17/14 F16K17/40 

FIELD: machine building.

SUBSTANCE: invention is related to machine building and refers to protection of technological equipment. Safety valve with rupture element comprises valve body, heat-insulating and rupture elements. Valve additionally comprises lined weight lock, which closes opening in body of protected object. In upper cylindrical part of valve body there is a heat-insulating element installed, as well as sealing membrane. Membrane is pressed to valve body by means of cover. Cover is hingedly joined to lever. Lever interacts with bump stop. Unit of rupture element fixation is fixed with its upper part on lever, and with its lower part - to upper cylindrical part of valve. Rupture element consists of wire, stop bolt, fork, valve cover lever, nut, two drums. The latter are arranged accordingly in fork of valve cover lever and fork of upper cylindrical part of valve body. Ends of wire are inserted into holes of drums and then are wound on them. Clearance between forks makes around 1.5÷3 of wire diametre. Parametres of valve are in the following optimal ranges of values: c=H/Dn=2.5÷3.0, where Dn is diametre of upper cylindrical part of valve body, equal to maximum size of protected object body hole; H is height of assembled valve.

EFFECT: increased efficiency of technological equipment protection against explosions by improved performance and reliability of rupture element actuation.

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