普瑞奇科技采用國際領(lǐng)先科技, 專業(yè)研發(fā)和生產(chǎn)各種類型的用于流體過濾, 分離和純化的濾芯，濾芯的功能就是從流體(液體或氣體)中去除污染物,使流體達(dá)到所需的潔凈度水平
過濾分離主要基于以下三種機(jī)理 直接攔截 慣性撞擊 擴(kuò)散攔截
直接攔截 : 液體中的基本過濾機(jī)制，本質(zhì)是一種篩分效應(yīng)，機(jī)械攔截顆粒，當(dāng)顆粒大于流道孔徑時即被該結(jié)構(gòu)去除，通過搭橋作用,尺寸小于濾孔的顆粒也可被攔截，
慣性撞擊:尺寸小于濾材孔徑的顆粒的輔助攔截方式，流體攜帶的顆粒由于質(zhì)量和線速度而具有直線運動的慣性，顆粒離開流體主流而撞擊到濾材上，當(dāng)流體改變運動方向時,慣性使顆粒撞擊到濾材表面, 因吸附力的存在顆粒便停留在撞擊表面。當(dāng)流經(jīng)過濾介質(zhì)時流體必須沿彎曲通道行進(jìn).這將增加該過濾機(jī)理的有效性。
過濾介質(zhì)的過濾/分離效率由于直接攔截 慣性撞擊 擴(kuò)散攔截的共同作用而增強(qiáng)。
普瑞奇濾芯在風(fēng)電領(lǐng)域的應(yīng)用
濾芯的操作與維護(hù)
■ 當(dāng)油溫 >10℃時，風(fēng)力發(fā)電機(jī)組工作。
■ 當(dāng)油溫 40℃，過濾器進(jìn)出口的壓差超過 3bar 時，壓差發(fā)訊
器發(fā)出報警信號，提示更換濾芯。當(dāng)油溫≤ 40℃時，忽略從壓
差發(fā)訊器傳來的報警信號。
■ 當(dāng)油溫＞ 55℃時，油流經(jīng)冷卻器的進(jìn)行冷卻，當(dāng)油溫降至
45℃時，油直接流入齒輪箱。
■ 泵出口壓力傳感器或壓力表，用于檢測系統(tǒng)的壓力，系統(tǒng)
安全閥設(shè)定壓力為 12bar，當(dāng)檢測壓力超過 12bar 時，安全
閥打開，系統(tǒng)溢流。
■ 齒輪箱入口處的壓力傳感器的監(jiān)測范圍為
0.8 ～ 6bar，不在此范圍內(nèi)時報警（油溫 70℃時
壓力≥ 0.8bar，油溫低于 10℃時壓力≤ 6bar）（此
監(jiān)控范圍為主機(jī)制造商根據(jù)實際需要設(shè)定，僅供參
考）；或采用壓力繼電器監(jiān)測壓力，若壓
力＜ 0.8bar 時，報警持續(xù)超過 5 秒則停機(jī)。
濾芯更換及清洗
過濾器底部的濾頭上裝有壓差發(fā)訊器，當(dāng)過
濾器內(nèi)的濾芯壓差達(dá)到 3bar 時，壓差發(fā)訊
器發(fā)出開關(guān)信號給主機(jī)控制系統(tǒng)，并由主機(jī)
控制系統(tǒng)發(fā)出警報，以提示更換濾芯（油溫
低于 40℃報警信號被忽略）。
過濾的定義:利用有孔介質(zhì)從流體(液體或氣體)中除去污染物
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