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class="NyNewsdetail_title">進口計量泵是流體精密計量與投加的理想設備</h1> <div id="at5xgcwsgw" class="NyNewsdetail_tips">更新時間：2021-06-25 點擊次數(shù)：1564</div> <div id="at5xgcwsgw" class="NyNewsdetail_con"> <div>　　<strong><a href="http:///SonList-696773.html" target="_blank">進口計量泵</a></strong>是一種通過流量調(diào)節(jié)機構(gòu)，按流量指示機構(gòu)上指示值精確計量與輸送流體的往復式容積泵。計量泵的基本原理為電機驅(qū)動泵的偏心機構(gòu)，偏心機構(gòu)帶動連桿推動柱塞做往復運行，實現(xiàn)流量輸出的目的。在石油化工、醫(yī)藥、食品、環(huán)保及核動力工程等部門得以廣泛應用。</div><div>　　作為流體精密計量與投加的理想設備，計量泵如今已被廣泛地應用于包括制藥、食品飲料和石油化工行業(yè)在內(nèi)的各個領(lǐng)域，在工藝過程擔負著強腐蝕性、毒害性、高粘性和高壓介質(zhì)的計量添加任務。經(jīng)過超過半個世紀的實踐應用和技術(shù)改進，現(xiàn)在計量泵已經(jīng)進入其高速增長期?，F(xiàn)在，成熟的動力驅(qū)動方式和液體輸送端(泵頭)材料技術(shù)使得新型計量泵幾乎可以完成輸送任何常規(guī)和特殊介質(zhì)的要求，其工作壓力和容量亦能滿足工業(yè)生產(chǎn)的絕大多數(shù)要求。</div><div>　　電機經(jīng)聯(lián)軸器帶動蝸桿并通過蝸輪減速使主軸和偏心輪作回轉(zhuǎn)運動，由偏心輪帶動弓型連桿的滑動調(diào)節(jié)座內(nèi)作往復運動。當柱塞向后死點移時，泵腔內(nèi)逐漸形成真空，吸入閥打開，吸入液體;當柱塞向前死點移動時，此時吸入閥關(guān)閉，排出閥打開，液體在柱塞向進一步運動時排出。在泵的往復順還工作形成連續(xù)有壓力、定量的排放液體。</div><div>　　計量泵主要由動力驅(qū)動、流體輸送和調(diào)節(jié)控制三部分組成，動力驅(qū)動裝置經(jīng)由機械聯(lián)桿系統(tǒng)帶動流體輸送隔膜實現(xiàn)往復運動。計量泵的分類：根據(jù)過流部分，計量泵可以分為柱塞活塞式、機械隔膜式、液壓隔膜式;根據(jù)驅(qū)動方式，可以分為電機驅(qū)動、電磁驅(qū)動、氣動;根據(jù)工作方式，可以分為往復式、回轉(zhuǎn)式、齒輪式。</div><div>　　目前，因其動力驅(qū)動和流體輸送方式的不同，計量泵主要劃分為柱塞式和隔膜式兩大種類。隔膜泵又分為機械傳動隔膜泵和液壓傳動隔膜泵。由于給水廠中所用的混凝劑多為腐蝕性液體，所以多采用隔膜泵。隔膜計量泵投藥特點是集計量與投加功能于一體，計量準確，運行平穩(wěn)，可根據(jù)流量信號和水質(zhì)信號白動進行復合環(huán)投加，確保水質(zhì)符合國家標準。</div> 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