CAJ | 학술논문

盐环定扬黄工程渠首泵站轴流泵自安装运行以来机组振动严重，影响泵站安全、经济运行，针对水泵振动分析了原因，提出了改造方案和依据并进行实施．选用适合水位变动较大及扬程幅度宽的混流泵，减少中间联接轴，减小叶轮运行的摆度，同时降低转数，减小泵的汽蚀，最终改为单基础立式蜗壳混流泵．改造后的混流泵运行振动相对轴流泵减小，能源单耗有效降低，维修方便，运行管理费用降低，为泵站的安全、经济运行提供了有利的保障．
염배정양황공정거수빙참축류빙자안장운행이래궤조진동엄중，영향빙참안전、경제운행，침대수빙진동분석료원인，제출료개조방안화의거병진행실시．선용괄합수위변동교대급양정폭도관적혼류빙，감소중간련접축，감소협륜운행적파도，동시강저전수，감소빙적기식，최종개위단기출입식와각혼류빙．개조후적혼류빙운행진동상대축류빙감소，능원단모유효강저，유수방편，운행관리비용강저，위빙참적안전、경제운행제공료유리적보장．
There is severe vibration in axial flow pump unit of Yanhuangding Yanghuang project headwork pumping station since it is installed and running, safety and economic operation of pumping station is influenced. For the pump vibration, the reason is analyzed, and renovation scheme and basis is put forward and applied. Scheme selects mixed flow pump which is suitable for water level changes and wide lift range, and reduces intermediate connecting shaft, reduces impeller running swing, reduces the speed to reduce the pump cavitation, uses single basis for vertical volute mixed flow pump. After the transformation of the mixed-flow pump, vibration is reduced relatively, energy consumption is reduced, repair is convenient, cost of operation and management is reduced, it provides safeguard on safety and economic operation.