自閉節水閥 的英文怎麼說
中文拼音 [zìbìjiéshuǐfá]
自閉節水閥
英文
auto cut-off water saving valve- 自 : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
- 閉 : Ⅰ動詞1. (關; 合) close; shut 2. (堵塞不通) block up; obstruct; stop up Ⅱ名詞(姓氏) a surname
- 節 : 節構詞成分。
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 閥 : 名詞1 (指在某方面有支配勢力的人物或家族) established house or power group; a powerful person or...
- 自閉 : self colsing
- 節水 : water conservation
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An engineer case is introduced, which is about " the reconstruction of high voltage fan ' s speed - adjusting by frequency conversion and the design of plc ( programmable logic controller ) control system in shui cheng iron and steel company ". in this project, an advanced controlling technology, based on the method in this paper, is used to realize the closed loop control of discharge header pressure of two coke ovens
介紹「水鋼煤焦化公司鼓風機高壓變頻調速及系統plc控制改造」的工程概況,對煤氣鼓風機採用先進的變頻調速技術和計算機控制技術進行改造,實現對兩座焦爐集氣管壓力自動調節的閉環控制功能,既滿足了煤氣量的自動調節的要求,又避免了煤氣鼓風機出口閥門的節流調節,節能效果相當可觀。By use plc, system can complete function as follow : this auto - control system be applicable to the temperature and smoke and dust the deal the variety quick, control the process is difficult with the operation is ; by the temperature controlor can automatically follow to the wet tower " exit temperature, error in the ? 3 v including ; by to automatically spray fog to lower the electric resistance, with the function for full the electricity equipment accepting the dust ; because of adopting feedback closed loop, and come to a to respond to the speed quick, constant temprature control the accuracy is high ; because of adopting the sensors, and make the system circumstance to leak water quick ; system have many control parameter can set exit control temperature and adjust value low limit by key ; can communication with remote computer and have remote control
通過使用plc ,使該自控系統可以完成如下功能:適用於溫度及煙塵量變化快、控制過程難以操作的場合;通過溫控表自動跟蹤增濕塔出口溫度,誤差達到3以內;通過自動噴霧來降低粉塵比電阻,以此充分發揮電收塵器的作用;由於採取了閉環反饋迴路,達到了響應速度快,恆溫控制精度高;通過使用各種檢測傳感器,使得異常情況泄水快;該自控系統具有多套控制參數,增濕塔出口控制溫度及調節閥下限值可通過按鍵設定;可與上位機通訊,具有「現控遠控」功能。During unit startup and load is lower than 15 %, drum level is controlled by feedwater control valve, feedwater pump remains at minimum safety speed ; when load is between 15 % and 25 %, feedwater control valve is closing at fixed speed determined by function module, main motor - operated - valve is opened automatically, control mode of drum level is transferred to feedwater pump automatically and bumplessly ; when load is between 25 % and 50 %, control valve is closed fully, and main motor - operated - valve is open fully, drum level is controlled by one pump ; when load is more than 50 %, first pump is kept in operation, second pump is putting into operation automatically and
在機組啟動、沖轉及機組並網至15 %負荷階段,給水泵維持在最低安全轉速下運行,汽包水位由低負荷給水調節閥自動控制; 15 %至25 %負荷階段,給水調節閥由函數模塊按照一定的速率自動平滑關閉,主給水電動門自動打開,汽包水位控制方式自動無擾切換為給水泵自動控制;負荷在25 %至50 %階段時,給水調節閥已完全關閉,主給水電動門已完全打開,水位控制已全由單臺給水泵承擔;負荷大於50 %后,在第一臺給水泵運行的同時,第二臺給水泵自動無擾投入。
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