EXPLOSION-PROTECTIVE VALVE Russian patent published in 2010 - IPC F16K17/36 F16K17/12 F16K17/40 F16K17/14 

FIELD: machine building.

SUBSTANCE: explosion-protective valve contains valve body, heat-insulating and explosive components. Device additionally contains lined cargo gate. This gate is movably connected to valve body by means of not less than three flexible couplers, for instance in the form of chains. One end of chains is pivotally connected to valve casing. The other end of chains is pivotally connected to cargo gate. Valve body is implemented in the form of bottom cylindrical, middle conical and top parallel portions. In bottom parallel portion it is located lined cargo gate. Gate overlaps opening in casing of screened object. In top parallel portion of valve body it is located heat insulating component and sealing disc. Membrane is pressed to valve body by means of cover, pivotally connected to lever. Lever interacts to impingement plate. Fastener assembly of explosive component is fixed by its top part on lever, and bottom - to top parallel portion of valve body. Explosive component consists of wire, locking bolt, jaw, valve cover lever, nut, two drums located correspondingly in jaw lever of valve cover, and in jaw of top parallel portion of valve body. Ends of wire are inserted into openings of drums and then coiled on it. Gap between jaws is about 1,5÷3 of wire diametre. Valve parametres are in optimal ratio of values.

EFFECT: effectiveness increase of protection of manufacturing equipment against explosions by means of increasing of performance and reliability of operation.

2 dwg