Highlights
Highlights
Benefits
- Lower operating costs as a result of high efficiency and energy savings
- Centerline mounting feet increase thermal-expansion tolerance
- 舞台密封和平衡鼓的所有交配表面上的硬涂层以增加寿命
特征
- 转子和定子零件之间的间隙和公差使频繁的启动和停止无擦操作
- Diffusers and return channels are precision-casted and machine-finished for high conformity and low radial loads on the rotor
- 双重平衡流量线最小化轴向推力变化并消除引起振动的不对称性
Applications
- Boiler feed in power generation plants
- 反渗透
- Energy recovery, CO₂ injection
概述
Our DDHF-R multistage centrifugal pumps are designed for the requirements of several services including boiler feed in power generation plants, pipeline, reverse osmosis, energy recovery, and CO2注射。
该泵家族旨在在苛刻的环境中工作，施加高达350个Barg的压力，承受高达250°C的过程温度，并管理近1,000 m的流量3/h with an extremely high level of reliability and efficiency (over 85%). Based on the above, a single train's installed shaft power can approach 10 MW in a high-speed arrangement.
优化的性能
为了在短时间的热身时间内保持如此高的性能，该产品使用创新的材料（将合金的钢和复合材料混合）以及带有热力指南和底板规格的独特布局，适合客户需求。入口通道旨在优化流动均匀性并减少瞬态和稳态操作期间所需的净正吸头（NPSHR）。
Other key features include a rotor that can operate below its first critical speed to increase reliability and life of seals, a shaft stepped to facilitate mounting of impellers, and ISO G1 balancing grade available up to six stages. To maximize performance predictability and hydraulic radial load balance, the impellers are precision-casted and shrink-fitted to avoid fretting and residual unbalance. The first-stage impeller is available with single or double suction.
该泵是集成泵种溶液的一部分，该泵溶液包括电动机，密封系统和位于公共底板上的润滑油控制台；机械控制仪器，自动循环阀（ARV），可变速度驱动程序系统（VSD）和机器监控系统（MMS），可以调整以最佳适合用户需求。
