闸门形式选择-冀州最好的启闭机销售及维修的厂家
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闸门形式选择
Selection of gate form
进行闸门形式选择时,需要根据闸门工作性质、设置位置、运行条件闸孔跨度、启闭力和工程造价等,结合闸门的特点,参照已有的运行实践经验,通过技术经济比较确定。其中平面闸门和弧形闸门是最常采用的门形。大、中型露顶式和潜没式的工作闸门大多采用弧形闸门,高水头深孔工作闸门尤为常用弧形闸门。当用作事故闸门和检修闸门时,大多采用平面闸门。工作闸门前常设置检修闸门和事故闸门。对高水头泄水工作闸门由于经常作动水操作或局部开启,应设法减少闸门振动和空蚀现象,改善闸门水力条件,按不同的部件考虑动力的影响,并对门体的刚度和动力特征进行分析研究。对门叶和埋件的制造、安装精度都应严格控制,当门槽边界流态复杂或体形特殊时,除需参考已有运行的成功试验,还应通过水工模型试验解决可能发生的振动、空蚀问题,以选定合适的门槽体形。
When choosing the form of gate, it is necessary to determine the gate according to its working nature, location, operation condition, span of gate hole, opening and closing force and project cost, combining with the characteristics of gate, referring to the existing operational experience and through technical and economic comparison. Among them, plane gate and arc gate are the most commonly used gates. Large and medium-sized open-top and submerged working gates mostly use arc gates, especially high-head deep-hole working gates. When used as accident gates and maintenance gates, plane gates are mostly used. Maintenance gates and accident gates are permanently installed in front of working gates. Due to frequent operation or partial opening of high head sluice gates, the vibration and cavitation of the gates should be reduced, the hydraulic conditions of the gates should be improved, the dynamic effects should be considered according to different components, and the stiffness and dynamic characteristics of the gates should be analyzed and studied. The manufacturing and installation accuracy of the door blade and buried parts should be strictly controlled. When the boundary flow pattern of the door slot is complex or its shape is special, besides referring to the successful test of the existing operation, the possible vibration and cavitation problems should be solved by hydraulic model test in order to select the appropriate shape of the door slot.

关键字:闸门形式选择
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