?丹佛斯90系列液壓泵丹佛斯90系列液壓泵是丹佛斯液壓產(chǎn)品系列中，廣泛應(yīng)用于礦山、冶金、化工、機(jī)械、建材，輕工等工業(yè)部門的液壓設(shè)備中進(jìn)行液壓泵技術(shù)的開發(fā)、制造和安裝；它具有設(shè)計(jì)緊湊、結(jié)構(gòu)簡(jiǎn)單、輸送能力強(qiáng)、工作平穩(wěn)可靠、結(jié)構(gòu)簡(jiǎn)單靈活等優(yōu)點(diǎn)。
液壓系統(tǒng)可廣泛用于生產(chǎn)車間及倉庫的通風(fēng)設(shè)備、管道及輸油和輸送設(shè)備中；又如各種機(jī)械中所需對(duì)泵的起動(dòng)、停止和轉(zhuǎn)數(shù)起停時(shí)；使輸送介質(zhì)時(shí)與其他泵配套的系統(tǒng)，例如壓縮機(jī)的啟動(dòng)、停止與運(yùn)轉(zhuǎn)等 此外，它還有其他用途泵油經(jīng)減壓閥排油后便可繼續(xù)運(yùn)行。
泵送介質(zhì)包括油、水和空氣、中性氣體、腐蝕性氣體和蒸氣等各種介質(zhì)、水蒸氣和空氣、水蒸氣等氣體以及與其混合而成的混合氣體和蒸汽等混合物等介質(zhì)、各種油水及其蒸汽與粉塵等在泵軸管內(nèi)產(chǎn)生的運(yùn)動(dòng)以及在壓力作用下從液體中吸收能量等物理性質(zhì)上和固體顆粒在介質(zhì)中運(yùn)動(dòng)產(chǎn)生機(jī)械能等動(dòng)力性質(zhì)方面。
流體的運(yùn)動(dòng)直接受介質(zhì)本身和介質(zhì)的物理、化學(xué)性質(zhì)以及流體輸送設(shè)備與管道等因素、機(jī)械性能、設(shè)備結(jié)構(gòu)和性能以及工作條件等方面的影響因素而變化與流體接觸的物體運(yùn)動(dòng)這兩種不同特性：物體運(yùn)動(dòng)有其自身固有特點(diǎn)和規(guī)律，人和環(huán)境同樣存在著相互聯(lián)系；同樣受力這兩個(gè)方面相一致地構(gòu)成了客觀世界條件和變化過程后又相聯(lián)系、相互制約、相互作用的客觀規(guī)律；同時(shí)根據(jù)這種規(guī)律又會(huì)產(chǎn)生新特性，產(chǎn)生新規(guī)律（如：當(dāng)改變條件時(shí)就會(huì)產(chǎn)生新影響）或新現(xiàn)象。
液壓系統(tǒng)中有許多重要過程需要能量為驅(qū)動(dòng)過程提供動(dòng)力和幫助不同性質(zhì)和不同要求的元件或系統(tǒng)的運(yùn)動(dòng)變化會(huì)引起一定功能和結(jié)構(gòu)上的變化并影響其應(yīng)用效果因此對(duì)于各種運(yùn)動(dòng)規(guī)律、操作、維護(hù)和修理等各個(gè)環(huán)節(jié)都有著相應(yīng)的要求，其中液壓系統(tǒng)是液壓泵性能得以發(fā)揮最關(guān)鍵因素之一。
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