| 摘要 |
<p>The present invention relates to a water-cooled high-temperature slide valve, especially hot blast slide valve, including within the housing thereof annular passages for the coolant (water) and extending from the upper portion of the slide valve along the sealing bars on both peripheral sides to the lower portion of the housing and opening into at least one cooling passage through transfer ports provided in this position, which cooling passage extends back around the portion of said housing arranged about the slide valve plate to the upper portion of said housing in which the coolant outlet is situated, wherein the cross-sectional flow area of said cooling passage within which the coolant is returned, at least in its lower portion extending over an arc of 180 DEG , is smaller than, and at most as great as, the overall cross-sectional flow area of said annular passages.</p> |
