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計量泵技術(shù)
您的當(dāng)前位置：巴特首頁 > 技術(shù)支持 > 計量泵技術(shù) >計量泵概述、工作原理和特點
來源：巴特計量泵、齒輪泵公司 發(fā)布時間：2013-12-04 15:02:17 瀏覽次數(shù)：次
一、精密計量泵概述
計量泵作為流體精密計量與投加的理想設(shè)備，如今已被廣泛地應(yīng)用于化工，化纖，紡絲，石油，食品工業(yè)，生物，醫(yī)藥等行業(yè)在內(nèi)的各個領(lǐng)域，在工藝過程擔(dān)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(wù)。隨著機械工業(yè)的日益發(fā)展以及計量泵應(yīng)用和技術(shù)改進，現(xiàn)在計量泵已經(jīng)逐漸被行業(yè)人士所采納和應(yīng)用，先以進入告訴發(fā)展階段?，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。
隨著人們對生產(chǎn)工藝過程指標和自動化程度要求的普遍提高，作為化學(xué)藥劑計量和添加環(huán)節(jié)的終執(zhí)行機構(gòu)，計量泵的安全性和可控制性變得日益重要起來。石油化工等行業(yè)向來以生產(chǎn)過程的高度自動化而著稱，也是集散式、分布式和智能式計算機控制系統(tǒng)應(yīng)用廣泛的領(lǐng)域之一，因而要求與之相配套的執(zhí)行器--計量泵亦要具備靈活多樣的控制模式，可以方便地與計算機系統(tǒng)構(gòu)成各種控制回路，實現(xiàn)更復(fù)雜更精準的過程控制。為順應(yīng)這一新的趨勢，上著名的計量泵制造商如德國普羅名特公司在保證其產(chǎn)品傳統(tǒng)性能繼續(xù)領(lǐng)先世界的同時，借助于嵌入式微處理器系統(tǒng)，將多種調(diào)節(jié)控制功能和數(shù)據(jù)通訊協(xié)議整合到計量泵中，真正實現(xiàn)了從沖程頻率到?jīng)_程長度的雙維調(diào)節(jié)，使其產(chǎn)品成為世界首創(chuàng)的智能精密計量泵。
隨著人們對生產(chǎn)工藝過程指標和自動化程度要求的普遍提高，作為化學(xué)藥劑計量和添加環(huán)節(jié)的終執(zhí)行機構(gòu)，計量泵的安全性和可控制性變得日益重要起來。石油化工等行業(yè)向來以生產(chǎn)過程的高度自動化而著稱，也是集散式、分布式和智能式計算機控制系統(tǒng)應(yīng)用廣泛的領(lǐng)域之一，因而要求與之相配套的執(zhí)行器--計量泵亦要具備靈活多樣的控制模式，可以方便地與計算機系統(tǒng)構(gòu)成各種控制回路，實現(xiàn)更復(fù)雜更精準的過程控制。為順應(yīng)這一新的趨勢，上著名的計量泵制造商如德國普羅名特公司在保證其產(chǎn)品傳統(tǒng)性能繼續(xù)領(lǐng)先世界的同時，借助于嵌入式微處理器系統(tǒng)，將多種調(diào)節(jié)控制功能和數(shù)據(jù)通訊協(xié)議整合到計量泵中，真正實現(xiàn)了從沖程頻率到?jīng)_程長度的雙維調(diào)節(jié)，使其產(chǎn)品成為世界首創(chuàng)的智能精密計量泵。
二、計量泵的基本工作原理
眾所周知，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。如圖所示。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（活塞）實現(xiàn)往復(fù)運動：
精密計量泵原理
隔膜（活塞）于沖程的前半周將被輸送流體吸入并于后半周將流體排出泵頭；所以，改變沖程的往復(fù)運動頻率或每一次往復(fù)運動的沖程長度即可達至調(diào)節(jié)流體輸送量之目的。精密的加工精度保證了每次泵出量進而實現(xiàn)被輸送介質(zhì)的精密計量。
三、計量泵的特點
三、計量泵的特點
?、痹摫眯阅軆?yōu)越，其中隔膜式計量泵絕對不泄露，安全性能高，計量輸送精準，流量可以從零到大定額值范圍能任意調(diào)節(jié)，壓力可從常壓到大允許范圍內(nèi)任意選擇。
⒉調(diào)節(jié)直觀清晰，工作平穩(wěn)、無噪聲、體積小、重量輕、維護方便，可并聯(lián)使用。
?、吃摫闷贩N多、性能全、適用輸送-30度到450度，粘度為0-800mm/s，高排出壓力可達64Mpa，流量范圍在0.1-20000L/h，計量精度在±1%以內(nèi)。
⒋根據(jù)工藝要求該泵可以手動調(diào)節(jié)和變頻調(diào)節(jié)流量，亦可實現(xiàn)遙控和計算機自動控制。
四、計量泵的特點
泵的流量調(diào)節(jié)是靠旋轉(zhuǎn)調(diào)節(jié)手輪，帶動調(diào)節(jié)螺桿轉(zhuǎn)動，從而改變弓型連桿間的間距，改變柱塞（活塞）在泵腔內(nèi)移動行程來決定流量的大小。調(diào)節(jié)手輪的刻度決定柱塞行程，精準率為95%
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