•Highest reliability due to non-contact sealing elements 由于密封部件不接触，最长的使用寿命 • Suitable for the highest system pressures, highest temperatures 适用于最高的压力和最高的温度工况 • Insensitive to water chemistry 对介质的敏感性不强 案例：国电北仑电厂2X1000MW机组
优异的抗汽蚀性能，运行周期可达到50,000 ~ 100,000 小时
Barrel-type pump CHTD
3
2. Type of Wear Ring泵体密封环类型
Cellular Surface Wear Rings 有蜂窝状表面的耐磨环
Optimized cell geometry of wear rings for: 经过优化的蜂窝形状可以使耐磨环具有下列特性: • Lowest internal leakage losses 由于内部泄漏造成的损失最小 •Best anti-seizure properties 防咬合性能最佳 •Increased rotor stability 转子稳定性增强 •Lower sensitiveness to dirt particles 对杂质颗粒的敏感性低
Barrel-type pump CHTD 7
6. 德国KSB性能试验台
20MW 的试验电机 （可换算至40MW） 可进行热态试验 最大流量可做到 3500 m3/h. (可换算到 5000 m3/h) 最大压力可做到50Mpa (可换算到60Mpa) 可调节的高压管道满足各种接口位置
KSB-汽动给水 泵技术特点
Design Features Barrel-type Pump CHTD 结构特点筒式泵 CHTD
3. Balancing device 平衡装置 1. Suction stage impeller 首级叶轮
4. Shaft sealing system 密封系统
5. Static sealing systems 唇形密封
min. Level
2x100%
2x100%
Barrel-type pump CHTD
6
5.Static Sealing System 静态密封
Lip seal design 唇型密封的设计
Your benefits 您的受益 • Extended service life 更长的使用寿命 • Increased availability 增加运行稳定型 • Easy replacement 装配简单 • Suitable for long-term storage 无需每次更换
Barrel-type pump CHTD
8
Barrel-type pump CHTD
பைடு நூலகம்
4
3. Balancing Systems双平衡鼓技术优势 KSB Solution KSB 双平衡鼓的技术优势
• Double safety and reliability: When the thrust bearing fails, the double drum acts like a disc 双平衡鼓的安全可靠性: 当推力轴承损坏，双平衡鼓起到了平衡盘的作用 • Lower loads on thrust bearing if the clearances increase Copes well with transient conditions (variable pressure operation) 当出现一些大负荷工况，通过轴向间隙的调节，使推 力轴承不会承受大的轴向推力 • Material characteristic 平衡鼓材质同轴材质为17-4PH，平衡座套材质为 RWA350防咬合材料 • Long service life thanks to improved rotor damping (large drum diameter) 长的运行寿命，高稳定性 • Higher efficiency thanks to lower quantity of balancing liquid 高效率源于较小的平衡水量
Barrel-type pump CHTD 5
4. Sealing systems 密封系统－浮动环密封
pe D T 10...15°C Boiler Feed Pump 2 x 100% Cooler D T 10...15°C
max. Level
Sealing Condensate Tank
Floating seal 浮动环密封
2.Cellular surface wear rings 蜂窝状泵体密封环
2
Barrel-type pump CHTD
1. 1st suction stage impeller首级叶轮
Maximum operating periods of the suction stage impeller 首级叶轮最长的运行周期
Your benefits 你的受益
Long service life 使用寿命长 Lower operating costs as a result of higher efficiency 效率高、操作成本低 Higher level of operational reliabilityand availability 操作可靠性和可用性高
Special vane profile for zero cavitation 特制的叶型可消除汽蚀
Optimised Suction Stage Impeller 优化的首级叶轮
More than 50,000 hours of operation without cavitation-induced wear