Open shroud trickle valve

Details Open shroud trickle valve Open shroud trickle valve

1976-07-01

1978-02-21

Rosenthal, Arnold

Fluid handling

With casing, support, protector or static constructional...

Guards and shields

1375276, F16K 1500

Patent

active

040746917

ABSTRACT:
An open shrouded trickle valve for use in processes such as those adapted for fluid cat crackers and particularly for use in a cyclone dipleg to eliminate the shroud normally employed. The valve is connected at the exit of the dipleg to provide a seal so that the collected solids can be returned directly to the bed and comprises a flapper plate which is disposed to prevent backflow of gas up the exit opening when solids flow is interrupted or when a bubble of gas passing through the bed is directed up the dipleg thereby preventing direct loss of solids out of the cyclones. Situated a fixed distance behind the flapper plate is a flat baffle plate disposed in a vertical position and wider than the flapper plate, which serves to protect the flapper plate by preventing local disturbances such as passing bubbles from affecting its position with respect to the exit opening.

REFERENCES:
patent: 608450 (1898-08-01), Godfrey
patent: 2838062 (1958-06-01), Held et al.
patent: 2838063 (1958-06-01), Weits et al.
patent: 2838065 (1958-06-01), Held et al.

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