PCD2.M48X SAIA 并將其轉(zhuǎn)換成相應(yīng)的推桿直線位移,以推動(dòng)調(diào)節(jié)機(jī)構(gòu)動(dòng)作。氣動(dòng)執(zhí)行器具有結(jié)構(gòu)簡單、動(dòng)作可靠穩(wěn)定

氣動(dòng)執(zhí)行器的工作原理:氣動(dòng)執(zhí)行機(jī)構(gòu)接受氣動(dòng)調(diào)節(jié)器或閥門定位器輸出的氣壓信號(hào),并將其轉(zhuǎn)換成相應(yīng)的推桿直線位移,以推動(dòng)調(diào)節(jié)機(jī)構(gòu)動(dòng)作。氣動(dòng)執(zhí)行器具有結(jié)構(gòu)簡單、動(dòng)作可靠穩(wěn)定、輸出力大、安裝維修方便、價(jià)格便宜和防火防爆等優(yōu)點(diǎn),廣泛應(yīng)用于石油、化工、冶金、電力等部門。缺點(diǎn)是滯后大,不適合遠(yuǎn)傳,(傳輸距離限制在150米以內(nèi))。為了克服此缺點(diǎn)可采用電/氣轉(zhuǎn)換器或電/氣閥門定位器,使傳送信號(hào)為電信號(hào),現(xiàn)場(chǎng)操作為氣動(dòng)。

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