| 摘要 |
Disclosed is a gate valve for the inside of a high-temperature furnace which is provided with: a granular sealant which is fluid between a normal temperature and 900ºC; a valve casing wherein the sealant is stored at the bottom; a first duct which is connected with the valve casing and through which a gas flows from the outside toward the inside of the valve casing; a second duct which is connected with the valve casing and through which the gas flows from the inside toward the outside of the valve casing; and a valve body which lowers down to a valve-lowering position where the valve body is at least partially buried in the sealant and stops the flow of the gas from the first duct toward the second duct, and rises to a valve-rising position where the valve body is disposed above the surface of the sealant and allows the flow of the gas from the first duct toward the second duct. |
