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US 11,226,048 B2Granted
Passive explosion isolation valve with vertically oriented flaps
AssigneeFike Corporation
InventorsBrian A. May, Andrew Tworek, Dan A. Malott
Life of this patent
Estimating the term…
Abstract
A passive explosion isolation valve (10) is provided that comprises vertically-oriented gate members (40, 42) configured to close automatically in response to an energetic event occurring downstream of the valve. The valve (10) may be optionally equipped with a valve seat cleaning assembly (46) configured to removed accumulated particulate material away from the area of the valve seat (48) and/or one or more latch assemblies (44) configured to secure the gate members (40, 42) in the closed position following closure of the valve (10) in response to an energetic event.
Claims32
A passive isolation valve comprising:
- a valve body comprising:
- a valve inlet,
- a valve outlet, and
- a passage through the valve body interconnecting the valve inlet and the valve outlet;
- a gate assembly secured to the valve body, the gate assembly comprising:
- a pair of vertically-hinged gate members that are shiftable, in response to an energetic event downstream of the valve outlet, between a valve open position, in which the valve inlet is in communication with the valve outlet, and a valve closed position, in which the pair of vertically-hinged gate members block communication between the valve inlet and the valve outlet, and
- at least one biasing mechanism configured to bias the pair of vertically-hinged gate members toward the valve open position;
- and
- one or more latch assemblies configured to be deployed in response to shifting of the pair of vertically-hinged gate members to the valve closed position and to hold the pair of vertically-hinged gate members in the valve closed position.
6 more elements
A passive isolation valve comprising:
- a valve body comprising:
- a valve inlet,
- a valve outlet, and
- a passage through the valve body interconnecting the valve inlet and the valve outlet;
- a gate assembly secured to the valve body, the gate assembly comprising one or more hinged gate members that are shiftable, in response to an energetic event downstream of the valve outlet, between a valve open position, in which the valve inlet is in communication with the valve outlet, and a valve closed position, in which the one or more hinged gate members block communication between the valve inlet and the valve outlet;
- a valve seat against which the one or more hinged gate members contact when in the valve closed position;
- and
- a valve seat cleaning assembly configured to remove accumulated particulate matter from the vicinity of the valve seat that might interfere with seating of the one or more hinged gate members against the valve seat during shifting of the one or more hinged gate members between the valve open and the valve closed positions, the valve seat cleaning assembly comprising:
- a gas-directing channel and
- a gas-dispersing guide that faces the gas-directing channel, the gas-dispersing guide comprising a plurality of ports that are in communication with the gas-directing channel and configured to disperse a gas flowing through the gas-directing channel into the passage in the vicinity of the valve seat.
7 more elements
A passive isolation valve comprising:
- a valve body comprising:
- a valve inlet,
- a valve outlet, and
- a passage through the valve body interconnecting the valve inlet and the valve outlet;
- a gate assembly secured to the valve body, the gate assembly comprising one or more hinged gate members that are shiftable, in response to an energetic event downstream of the valve outlet, between a valve open position, in which the valve inlet is in communication with the valve outlet, and a valve closed position, in which the one or more hinged gate members block communication between the valve inlet and the valve outlet;
- and
- at least one latch assembly configured to be deployed in response to shifting of the one or more hinged gate members to the valve closed position and to hold the one or more hinged gate members in the valve closed position,
- the at least one latch assembly comprising:
- a trigger configured to be contacted by the one or more hinged gate members during shifting of the one or more hinged gate members between the valve open and valve closed positions,
- a securing element configured to restrict movement of the one or more hinged gate members from the valve closed position, and
- a shiftable body that is configured, upon activation of the trigger, to move the securing element into engagement with the one or more hinged gate members.
8 more elements
Dependencies are inferred from the claim text.