進(jìn)口加藥計(jì)量泵(美國(guó)進(jìn)口)
產(chǎn)品描述:
作為流體精密計(jì)量與投加的理想設(shè)備,計(jì)量泵如今已被廣泛地應(yīng)用于包括制藥、食品飲料和石油化工行業(yè)在內(nèi)的各個(gè)領(lǐng)域,在工藝過(guò)程擔(dān)負(fù)著強(qiáng)腐蝕性、毒害性、高粘性和高壓介質(zhì)的計(jì)量添加任務(wù)。經(jīng)過(guò)超過(guò)半個(gè)世紀(jì)的實(shí)踐應(yīng)用和技術(shù)改進(jìn),現(xiàn)在計(jì)量泵已經(jīng)進(jìn)入其高速增*。現(xiàn)在,成熟的動(dòng)力驅(qū)動(dòng)方式和液體輸送端(泵頭)材料技術(shù)使得新型計(jì)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(mǎn)足工業(yè)生產(chǎn)的絕大多數(shù)要求。
隨著人們對(duì)生產(chǎn)工藝過(guò)程指標(biāo)和自動(dòng)化程度要求的普遍提高,作為化學(xué)藥劑計(jì)量和添加環(huán)節(jié)的終執(zhí)行機(jī)構(gòu),計(jì)量泵的安全性和可控制性變得日益重要起來(lái)。石油化工等行業(yè)向來(lái)以生產(chǎn)過(guò)程的高度自動(dòng)化而著稱(chēng),也是集散式、分布式和智能式計(jì)算機(jī)控制系統(tǒng)應(yīng)用的領(lǐng)域之一,因而要求與之相配套的執(zhí)行器——計(jì)量泵亦要具備靈活多樣的控制模式,可以方便地與計(jì)算機(jī)系統(tǒng)構(gòu)成各種控制回路,實(shí)現(xiàn)更復(fù)雜更精確的過(guò)程控制。為順應(yīng)這一新的趨勢(shì),*上的計(jì)量泵制造商如德國(guó)普羅名特公司在保證其產(chǎn)品傳統(tǒng)性能繼續(xù)世界的同時(shí),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(jì)量泵中,真正實(shí)現(xiàn)了從沖程頻率到?jīng)_程長(zhǎng)度的雙維調(diào)節(jié),使其產(chǎn)品成為的智能精密計(jì)量泵。
產(chǎn)品分類(lèi):
1、柱塞式計(jì)量泵
主要有普通有閥泵和無(wú)閥泵兩種。柱塞式計(jì)量泵因其結(jié)構(gòu)簡(jiǎn)單和耐高溫高壓等優(yōu)點(diǎn)而被廣泛應(yīng)用于石油化工領(lǐng)域。針對(duì)高粘度介質(zhì)在高壓力工況下普通柱塞泵的不足,一種無(wú)閥旋轉(zhuǎn)柱塞式計(jì)量泵受到愈來(lái)愈多的重視,被廣泛應(yīng)用于糖漿、巧克力和石油添加劑等高粘度介質(zhì)的計(jì)量添加。因被計(jì)量介質(zhì)和泵內(nèi)潤(rùn)滑劑之間無(wú)法實(shí)現(xiàn)*隔離這一結(jié)榭}生缺點(diǎn),柱塞式計(jì)量泵在高防污染要求流體計(jì)量應(yīng)用中受到諸多限制。
2、隔膜式計(jì)量泵
顧名思義,隔膜式計(jì)量泵利用特殊設(shè)計(jì)加工的柔性隔膜取代活塞,在驅(qū)動(dòng)機(jī)構(gòu)作用下實(shí)現(xiàn)往復(fù)運(yùn)動(dòng),完成吸人一排出過(guò)程。由于隔膜的隔離作用,在結(jié)構(gòu)上真正實(shí)現(xiàn)了被計(jì)量流體與驅(qū)動(dòng)潤(rùn)滑機(jī)構(gòu)之間的隔離。高科技的結(jié)構(gòu)設(shè)計(jì)和新型材料的選用已經(jīng)大大提高了隔膜的使用壽命,加上復(fù)合材料優(yōu)異的耐腐蝕特性,隔膜式計(jì)量泵目前已經(jīng)成為流體計(jì)量應(yīng)用中的主力泵型。
在隔膜式計(jì)量泵家族成員里,液力驅(qū)動(dòng)式隔膜泵由于采用了液壓油均勻地驅(qū)動(dòng)隔膜,克服了機(jī)械直接驅(qū)動(dòng)方式下泵隔膜受力過(guò)分集中的缺點(diǎn),提升了隔膜壽命和工作壓力上限。為了克服單隔膜式計(jì)量泵可骺出現(xiàn)的因隔膜破損而造成的工作故障,有的計(jì)量泵配備了隔膜破損傳感器,實(shí)現(xiàn)隔膜破裂時(shí)自動(dòng)連鎖保護(hù);具有雙隔膜結(jié)構(gòu)泵頭的計(jì)量進(jìn)一步提高了其安全性,適合對(duì)安全保護(hù)特別敏感的應(yīng)用場(chǎng)合。
作為隔膜式計(jì)量泵的一種.電磁驅(qū)動(dòng)式計(jì)量泵以電磁鐵產(chǎn)生脈動(dòng)驅(qū)動(dòng)力,省卻了電機(jī)和變速機(jī)構(gòu),使得系統(tǒng)小巧緊湊,是小量程低壓計(jì)量泵的重要分支。
現(xiàn)在,精密計(jì)量泵技術(shù)已經(jīng)非常成熟,其流體計(jì)量輸送能力大可達(dá)0-100,000l/h,工作壓力4000bar,工作范圍覆蓋了工業(yè)生產(chǎn)所有領(lǐng)域的要求。
特點(diǎn):
(1)泵在運(yùn)轉(zhuǎn)過(guò)程中,流量可以根據(jù)使用需要從接近。%到的范圍內(nèi)進(jìn)行無(wú)級(jí)調(diào)節(jié);
(2)對(duì)所輸送的液體能夠計(jì)量,且能滿(mǎn)足一定的計(jì)量精度要求。一般精度為±1%,設(shè)計(jì)劁造優(yōu)良者,精度可達(dá)±0.3%。
計(jì)量泵由于具有上述突出的特點(diǎn),因此,在化工、石油、造紙、食品、塑料、制藥和日用化工等方面得到了廣泛的應(yīng)用。常被用來(lái)輸送強(qiáng)腐蝕性液體、懸浮液、熔融液、放射性液體、易燃易爆液體、有毒液體、液化氣或液態(tài)金屬等。計(jì)量泵的流量,通??梢杂檬謩?dòng)、電動(dòng)或者氣動(dòng)自動(dòng)調(diào)節(jié)。在應(yīng)用于連續(xù)或半連續(xù)工藝流程系統(tǒng)的自動(dòng)控制系統(tǒng)中,泵的流量往往可以依據(jù)溫度、壓力、密度、pH值等參數(shù)進(jìn)行監(jiān)控。
(美國(guó)ARCADIA阿卡迪亞)
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宏觀(guān)上看,*氣候變化呼吁我們每個(gè)人采取行動(dòng)來(lái)改變現(xiàn)有狀況。這意味著建筑物必須遵守嚴(yán)格的可持續(xù)發(fā)展標(biāo)準(zhǔn)以保持低能耗和高靈活性。微觀(guān)處,咨詢(xún)工程師們卻面臨著工程多,監(jiān)理時(shí)間嚴(yán)重不足的難題。因此,快速方便地獲取正確的信息顯得尤為重要。
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