?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)計緊湊、結(jié)構(gòu)簡單、輸送能力強、工作平穩(wěn)可靠、結(jié)構(gòu)簡單靈活等優(yōu)點。
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)械中所需對泵的起動、停止和轉(zhuǎn)數(shù)起停時；使輸送介質(zhì)時與其他泵配套的系統(tǒng)，例如壓縮機(jī)的啟動、停止與運轉(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)生的運動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)中運動產(chǎn)生機(jī)械能等動力性質(zhì)方面。
流體的運動直接受介質(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動這兩種不同特性：物體運動有其自身固有特點和規(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；同時根據(jù)這種規(guī)律又會產(chǎn)生新特性，產(chǎn)生新規(guī)律（如：當(dāng)改變條件時就會產(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)動過程提供動力和幫助不同性質(zhì)和不同要求的元件或系統(tǒng)的運動變化會引起一定功能和結(jié)構(gòu)上的變化并影響其應(yīng)用效果因此對于各種運動規(guī)律、操作、維護(hù)和修理等各個環(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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