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A platform for research: civil engineering, architecture and urbanism
Cantilever installation flexible filiform sealing weir end face sealing moving ring structure
The invention discloses an end face sealing moving ring structure of a cantilever-mounted flexible filiform sealing weir, and belongs to the technical field of groove-type self-adaptive end face sealing moving ring structures. One side of the moving ring structure is a high-pressure side, and the other side is a low-pressure side; comprising a sealing ring base body, a brush wire pressing ring and a flexible filiform sealing weir. The end face of the sealing ring base body comprises a slotting area end face and a sealing dam area end face, a height difference exists between the sealing dam area end face and the slotting area end face, the set of flexible filiform sealing weirs are evenly distributed in the circumferential direction of the sealing ring base body, and each flexible filiform sealing weir comprises a cluster of flexible brush wires tightly arranged in the circumferential direction of the sealing ring base body. The starting ends of the flexible brush wires are pressed on the end face of the slotting area through the brush wire pressing ring to form a cantilever structure, and a sealing groove allowing airflow to circulate is formed between every two adjacent flexible wire-shaped sealing weirs. The flexible filamentous sealing weir structure on the end face of the sealing ring can be effectively changed according to the change of the operation working condition, so that the dry gas seal can maintain stable gas film bearing capacity during the start-stop stage of equipment and the operation under the variable working condition, and the collision and abrasion phenomenon of the sealing ring is effectively avoided.
一种悬臂安装柔性丝状密封堰端面密封动环结构，属于槽型自适应的端面密封动环结构技术领域。动环结构的一侧为高压侧，另一侧为低压侧；包括密封环基体、刷丝压紧环及柔性丝状密封堰；密封环基体的端面包括开槽区端面和密封坝区端面，密封坝区端面与开槽区端面之间存在高度差，一组柔性丝状密封堰沿着密封环基体的周向均匀分布，柔性丝状密封堰包括一簇沿着密封环基体周向紧密排列的柔性刷丝，柔性刷丝起始端被刷丝压紧环压紧于开槽区端面上形成悬臂结构，相邻两柔性丝状密封堰之间形成可供气流流通的密封槽。本发明密封环端面的柔性丝状密封堰结构能够有效地根据运行工况的变化而改变，从而保证干气密封在设备启停阶段和变工况下运行时维持稳定的气膜承载力，有效地避免密封环碰磨现象的产生。
Cantilever installation flexible filiform sealing weir end face sealing moving ring structure
The invention discloses an end face sealing moving ring structure of a cantilever-mounted flexible filiform sealing weir, and belongs to the technical field of groove-type self-adaptive end face sealing moving ring structures. One side of the moving ring structure is a high-pressure side, and the other side is a low-pressure side; comprising a sealing ring base body, a brush wire pressing ring and a flexible filiform sealing weir. The end face of the sealing ring base body comprises a slotting area end face and a sealing dam area end face, a height difference exists between the sealing dam area end face and the slotting area end face, the set of flexible filiform sealing weirs are evenly distributed in the circumferential direction of the sealing ring base body, and each flexible filiform sealing weir comprises a cluster of flexible brush wires tightly arranged in the circumferential direction of the sealing ring base body. The starting ends of the flexible brush wires are pressed on the end face of the slotting area through the brush wire pressing ring to form a cantilever structure, and a sealing groove allowing airflow to circulate is formed between every two adjacent flexible wire-shaped sealing weirs. The flexible filamentous sealing weir structure on the end face of the sealing ring can be effectively changed according to the change of the operation working condition, so that the dry gas seal can maintain stable gas film bearing capacity during the start-stop stage of equipment and the operation under the variable working condition, and the collision and abrasion phenomenon of the sealing ring is effectively avoided.
一种悬臂安装柔性丝状密封堰端面密封动环结构，属于槽型自适应的端面密封动环结构技术领域。动环结构的一侧为高压侧，另一侧为低压侧；包括密封环基体、刷丝压紧环及柔性丝状密封堰；密封环基体的端面包括开槽区端面和密封坝区端面，密封坝区端面与开槽区端面之间存在高度差，一组柔性丝状密封堰沿着密封环基体的周向均匀分布，柔性丝状密封堰包括一簇沿着密封环基体周向紧密排列的柔性刷丝，柔性刷丝起始端被刷丝压紧环压紧于开槽区端面上形成悬臂结构，相邻两柔性丝状密封堰之间形成可供气流流通的密封槽。本发明密封环端面的柔性丝状密封堰结构能够有效地根据运行工况的变化而改变，从而保证干气密封在设备启停阶段和变工况下运行时维持稳定的气膜承载力，有效地避免密封环碰磨现象的产生。
Cantilever installation flexible filiform sealing weir end face sealing moving ring structure
一种悬臂安装柔性丝状密封堰端面密封动环结构
PENG XUDONG (author) / PAN ZHENWEI (author) / JIANG JINBO (author) / ZHAO WENJING (author) / MENG XIANGKAI (author)
2023-05-23
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
Sealing structure, weir frame assembly adopting sealing structure, and hydraulic lifting weir gate
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