pump system used oil 中文意思是什麼
pump system used oil
解釋
有油真空機組-
This text summarises several control forms of gushing out oil pump test platform simply, and mainly proposes analog and digital control schemes of close ring adjusting speed, at the same time, gives the principles and implementation methods used in parameters control and measuring, this text introduces the asynchronous electromotor " s control process, in which, fuzzy control arithmetic is used, and the control commands are passed on by means of communication between mcu and frequency converter. there are two parts in this system. one is superior computer that is ordinary pc, the other is hypogynous at89c52. the functions of superior pc are control and display information through screen, and the functions of ats9c52 includes control, collecting, display, treatment, uploading of all parameters
詳細介紹了應用模糊控制演算法，以變頻器通訊方式進行異步電機調速的控制過程。系統由上位機和下位機兩部分組成。上位機為普通pc機，主要實現系統控制、數據顯示等功能，另外還有數據庫瀏覽、數據列印等功能；下位機以at89c52為核心，負責所有參數的採集、處理、顯示、上傳、控制等。 -
Main engine cooling water system include thermoregulator, fresh water cooler, lub oil cooler, fresh water pump, sea water pump, fresh water tank ( also used as fresh water expansion tank )
主機冷卻水系統由調溫器、淡水冷卻器、滑油冷卻器、淡水泵、海水泵、淡水箱（兼淡水膨脹箱）組成。 -
This series of products are widely used for general purposes in waterworks, pump stations, power stations, air conditioning water circulation, heating water circulation, industrial water supply system, fire control system, ships and oil refining
該系列產品廣泛用於自來水廠、泵站、電站、空調循環用水、採暖用熱水循環、工業供水系統、消防系統、船舶工業、亦適合煉油工業中一般性用途。 -
The mainly works had been done as follows : 1. in order to keep commonality, the modules who have similar thermodynamic process had been classed. such as evaporating module ( including furnace, drum, system of boiler recycled water ), single - phase heat exchange module ( including superheater, reheater, ecomomizer ), lubricating oil system module ( can be used for any lubricating oil system of rotation mechanical impedance ), pump and fan module, ect
本文所作的主要工作如下: 1 、為保證模塊的通用性，對鍋爐有相似熱力環節的模塊進行分類，建立模塊庫，便於模塊調用，如蒸發區模塊（包括爐膛、汽包和爐水循環系統） ，單相換熱模塊（包括過熱器，再熱器，省煤器等） ，潤滑油系統模塊（可用於各種轉機軸承潤滑油的動態特性的計算） ，泵與風機的動態計算模塊等。 -
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。 -
The oil production technology utilizing the progressing cavity pump system has the properties of high adaptive, high efficiency, low running fault and running cost, and now has been used more and more widely
螺桿泵採油技術具有投資少、效率高、適應性廣和故障率低等特點已經廣泛地應用於油田採油生產中。
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