系统应用amp;设计ppt课件.pptVIP

内容提要 蒸汽供给 压力控制与热交换 冷凝水排放 冷凝水回收 总结 蒸汽系统纵览 蒸汽用汽设备举例 蒸汽生产时可能存在的问题 蒸汽生产时可能存在的问题 蒸汽配送系统中的问题 蒸汽配送系统中的问题 蒸汽配送系统中的问题 TLV DC3 汽水分离器 蒸汽配送系统中的问题 冷凝水收集点 蒸汽配送系统中的问题 冷凝水收集点 蒸汽配送系统中的问题 冷凝水收集点 蒸汽配送系统中的问题 蒸汽管道的安装 蒸汽配送系统中的问题 蒸汽管道的安装 蒸汽配送系统中的问题 蒸汽管道的安装 蒸汽配送系统中的问题空气排放 蒸汽配送系统中的问题空气排放 用汽设备示例 压力控制为什么说蒸汽是最佳热载体 便于安装 干燥的蒸汽 出口压力稳定 使用寿命长 工业噪音低 热交换 用汽设备示例 冷凝水排放冷凝水回收管的安装 冷凝水排放冷凝水回收管的安装 冷凝水排放冷凝水回收管的安装 冷凝水的排放冷凝水回收管的安装 冷凝水回收系统正压差 TLV 动力机械泵 GP 10 在任何温度下泵送冷凝水: 不会产生气蚀 安全可靠 (可用于工况要求严格的场合): 无需电力驱动 少维护: 精心设计 GT 10 的运行 GT 10 的运行 GT 10 的运行 GT 10 的运行 GT 10 的运行 用汽设备示例 问 题? 总结蒸汽生产中的问题 总结蒸汽配送中的问题 总结冷凝水收集点 总结蒸汽管道的安装 总结空气排放 总结冷凝水回收管的安装 总结冷凝水回收管的安装 This is the last slide in this presentation.Please click the INDEX button to return to the INDEX page. Normal drainage when upstream pressure is greater than down stream pressure. Condensate is then force through the trap. A properly selected and installed trap can be used to satisfactorily drain equipment under these conditions. If the down stream pressure is larger than the upstream pressure then condensate cannot be forced through the steam trap. No condensate flows. This causes problems….. As no condensate can drain it builds up in the equipment. This limits the area available for heat transfer. Consequently the equipment may not be able to reach operating temperatures. If the equipment is temperature controlled then temperature control problems may result. Due to control system opening valve, steam pressure increasing, eventually blowing condensate out, and then having hot/ high pressure steam over a large surface area so the product temperature rises. The held back condensate may cause water hammer as it is suddenly discharged. Held back cooled condensate can corrode the equipment. Temperature cycling can cause thermal stresses. These 3 things can combine to cause equipment damage. The down stream pressure can become higher than the upstream pressure due to a number of reasons. The first common one is due to a rise of condensate after t