Steam valve, and steam turbine equipment comprising same

A link support component of a steam valve that includes

• a valve casing in which a flow path for steam is formed inside,
• a valve body that linearly reciprocates in the valve casing to open and close the flow path,
• a valve stein connected to the valve body,
• an actuator that moves the valve stem, and
• a link mechanism that transmits an operation of the actuator to the valve stem,
• the link support component comprising:
• a heat buffer member capable of being mounted to the valve casing;
• and
• a link base capable of supporting the link mechanism,
• wherein the heat buffer member includes a heat buffer plate separated from the valve casing toward a tip side out of the tip side and a base end side in an axial direction in which the valve stem extends, and a support column that extends in the axial direction and that fixes the heat buffer plate to be immovable relative to the valve casing,
• the heat buffer plate is provided with an insertion hole which penetrates in the axial direction, and into which the valve stem is capable of being inserted,
• the link base includes a separation member fixed to the heat buffer member and extending from the heat buffer member toward a first side in an axis-perpendicular direction perpendicular to the axial direction, and an actuator fixing plate that is directly or indirectly fixed to an end portion on the first side of the separation member, and to Which a casing of the actuator is capable of being fixed,
• the actuator fixing plate is provided with a rod insertion hole which penetrates in the axial direction, and into which an actuator rod of the actuator is capable of being inserted, and
• the separation member is provided with a pin mounting portion to which a pin for rotatably supporting one link of the link mechanism is mounted.