oil pipeline pump 中文意思是什麼
oil pipeline pump
解釋
管線輸油泵-
To decrease energy consumption of jingxian oil pipeline, the transportation process of the pipeline is improved to tight - line pump process and realizes the automatic pressure and oil throughput regulating as well as the automatic protection under the extreme operating condition
摘要針對靖咸管道大落差、多種管徑和輸送流量大的特點，結合實際運行工況進行了技術改造，旨在降低管道的運營能耗。 -
It is indicated that, when a two - speed motor is used for driving oil transfer pump, the motor with the characteristic of torque reduction on square rotary speed should be chosen ; the working economy of the variable speed pump is restricted by the characteristic curves of pipeline resistance, and its speed control range is restricted by the pipeline resistance characteristic curve, the pressure head needed by the system and the working characteristic of the pump ; when several pumps work in parallel, the pump with better performance should be changed into speed - variable pump
指出雙速電動機用於輸油泵的調速時，應選用轉矩按轉速平方降低特性的電動機；調速泵的運行經濟性受到管路阻力特性曲線的限制，其調速范圍受到管路阻力特性曲線、系統所需揚程和泵運行特性的限制；在母管制系統中把部分定速泵改為調速泵時，應將性能較高的定速泵改為調速泵。 -
There is no need of bottom valve in pipeline, only to ensure certain priming oil in pump body before work
管路中不需底閥，工作前只需保證泵體內儲有定量引油即可。
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