REXROTH泵A10V0系列應(yīng)用領(lǐng)域

REXROTH泵A10V0系列應(yīng)用領(lǐng)域

REXROTH泵選型依據(jù)，應(yīng)根據(jù)工藝流程，給排水要求，從五個(gè)方面加以考慮，既液體輸送量、裝置揚(yáng)程、液體性質(zhì)、管路布置以及操作運(yùn)轉(zhuǎn)條件等。
1．REXROTH泵流量是選泵的重要性能數(shù)據(jù)之一，它直接關(guān)系到整個(gè)裝置的的生產(chǎn)能力和輸送能力。如設(shè)計(jì)院工藝設(shè)計(jì)中能算出泵正常、zui小、zui大三種流量。選擇泵時(shí)，以zui大流量為依據(jù)，兼顧正常流量，在沒(méi)有zui大流量時(shí)，通?？扇≌Ａ髁康?.1倍作為zui大流量。
2．REXROTH泵裝置系統(tǒng)所需的揚(yáng)程是選泵的又一重要性能數(shù)據(jù)，一般要用放大5%—10%余量后揚(yáng)程來(lái)選型。
3．REXROTH泵液體性質(zhì)，包括液體介質(zhì)名稱，物理性質(zhì)，化學(xué)性質(zhì)和其它性質(zhì)，物理性質(zhì)有溫度c密度d，粘度u，介質(zhì)中固體顆粒直徑和氣體的含量等，這涉及到系統(tǒng)的揚(yáng)程，有效氣蝕余量計(jì)算和合適泵的類型：化學(xué)性質(zhì)，主要指液體介質(zhì)的化學(xué)腐蝕性和毒性，是選用泵材料和選用那一種軸封型式的重要依據(jù)。
4． REXROTH泵裝置系統(tǒng)的管路布置條件指的是送液高度送液距離送液走向，吸如側(cè)zui低液面，排出側(cè)zui高液面等一些數(shù)據(jù)和管道規(guī)格及其長(zhǎng)度、材料、管件規(guī)格、數(shù)量等，以便進(jìn)行系統(tǒng)揚(yáng)程計(jì)算和汽蝕余量的校核。
5． REXROTH泵操作條件的內(nèi)容很多，如液體的操作T飽和蒸汽力P、吸入側(cè)壓力PS（）、排出側(cè)容器壓力PZ、海拔高度、環(huán)境溫度操作是間隙的還是連續(xù)的、泵的位置是固定的還是可移的。

REXROTH泵是采用磁懸浮原理和螺旋環(huán)流體力學(xué)結(jié)構(gòu)實(shí)現(xiàn)流質(zhì)推進(jìn)，REXROTH泵即取消軸，取消軸連接，取消軸密封結(jié)構(gòu)。啟動(dòng)后電流轉(zhuǎn)化為磁場(chǎng)，磁場(chǎng)力驅(qū)動(dòng)螺旋環(huán)運(yùn)轉(zhuǎn)，即螺旋環(huán)提升流質(zhì)前進(jìn)。
REXROTH泵選型原則
1．REXROTH泵使所選泵的型式和性能符合裝置流量、揚(yáng)程、壓力、溫度、汽蝕流量吸程等工藝參數(shù)的要求。
2．REXROTH泵必須滿足介質(zhì)特性的要求。
對(duì)輸送易燃、易爆有毒或貴重介質(zhì)的泵，要求軸封可靠或采用無(wú)泄漏泵，如磁力驅(qū)動(dòng)泵、隔膜泵、屏蔽泵
對(duì)輸送腐蝕性介質(zhì)的泵，要求對(duì)流部件采用耐腐蝕性材料。
對(duì)輸送含固體顆粒介質(zhì)的泵，要求對(duì)流部件采用耐磨材料，必要時(shí)軸封用采用清潔液體沖洗。
3．REXROTH泵機(jī)械方面可靠性高、噪聲低、振動(dòng)小。
4．REXROTH泵經(jīng)濟(jì)上要綜合考慮到設(shè)備費(fèi)、運(yùn)轉(zhuǎn)費(fèi)、維修費(fèi)和管理費(fèi)的總成本zui低。
5．REXROTH泵具有轉(zhuǎn)速高、體積小、重量輕、效率高、流量大、結(jié)構(gòu)簡(jiǎn)單、輸液無(wú)脈動(dòng)、性能平穩(wěn)、容易操作和維修方便等特點(diǎn)。
REXROTH泵A10V0系列應(yīng)用領(lǐng)域REXROTH泵殼內(nèi)，并緊固在泵軸上，泵軸由電機(jī)直接帶動(dòng)。泵殼中央有液體吸管。液體經(jīng)底閥和吸入管進(jìn)入泵內(nèi)。泵殼上的液體排出口與排出管連接。
在泵啟動(dòng)前，泵殼內(nèi)灌滿被輸送的液體；啟動(dòng)后，葉輪由軸帶動(dòng)高速轉(zhuǎn)動(dòng)，葉片間的液體也必須隨著轉(zhuǎn)動(dòng)。在離心力的作用下，液體從葉輪中心被拋向外緣并獲得能量，以高速離開(kāi)葉輪外緣進(jìn)入蝸形泵殼。在蝸殼中，液體由于流道的逐漸擴(kuò)大而減速，又將部分動(dòng)能轉(zhuǎn)變?yōu)殪o壓能，REXROTH泵zui后以較高的壓力流入排出管道，送至需要場(chǎng)所。液體由葉輪中心流向外緣時(shí)，在葉輪中心形成了一定的真空，由于貯槽液面上方的壓力大于泵入口處的壓力，液體便被連續(xù)壓入葉輪中?？梢?jiàn)，只要葉輪不斷地轉(zhuǎn)動(dòng)，液體便會(huì)不斷地被吸入和排出。
直線泵工作原理不同與其它任何泵。

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