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首頁 > 行業新聞> 自動控制閥：工業過程的自主法規
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自動控制閥：工業過程的自主法規

自動控制閥是一種巧妙的裝置，旨在調節流體流動，壓力或溫度，而無需依賴外部電源，例如電力或壓縮空氣。相反，它利用過程流體本身固有的能量來保持對關鍵參數的精確控制。這使其成為針對各種工業應用的經濟高效且可靠的解決方案。
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結構和組件

自動控制閥由三個主要組件組成：感應元件，控制元件和一個執行器。傳感元件通常是隔膜，波紋管或伯登管，檢測到過程參數（壓力，溫度或流動）的變化，其設計用於監測。例如，在壓力調節閥中，感應元件對流體壓力的波動反應。
控制元件通常是閥門或磁盤，可調節閥體內的流動路徑。它連接到執行器，該執行器將能量從傳感元件轉換為機械運動，以相應地定位控制元件。在某些設計中，彈簧或重量提供了平衡系統並確定設定點的對立力量 - 所控制參數的所需值。

工作原理

自動控制閥的操作基於反饋控制的原理。傳感元素連續監視過程參數並將其比較與設定值。當發生偏差時（例如，如果壓力在壓力調節閥中的設定點上方上升到設定值之上），感應元件會產生作用於執行器的力。
該力使執行器移動控制元件，調整流動區域，從而改變過程參數。例如，如果壓力太高，則閥門將稍微關閉以降低流量並降低壓力。相反，如果壓力下降到設定點以下，則閥將開放以增加流量併升高壓力。這種連續的調整可確保過程參數保持穩定並接近所需的設定值。
June 20, 2025
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