①打開(kāi)密閉排凝閥排液 ②關(guān)閉密閉排凝閥 ③置換 ④打開(kāi)排凝閥 ⑤打開(kāi)放空閥 ⑥確認(rèn)泵排干凈
①關(guān)閉泵入口閥及跨線閥 ②關(guān)閉泵出口閥 ③打開(kāi)泵體排凝閥 ④打開(kāi)放空閥