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<span>關(guān)于計(jì)量泵的知識(shí)你了解多少？</span></p> </div> <div id="h9bpkuijf" class="ly_NyNewsdetail"> <h1 class="NyNewsdetail_title">關(guān)于計(jì)量泵的知識(shí)你了解多少？</h1> <div id="h9bpkuijf" class="NyNewsdetail_tips">更新時(shí)間：2023-02-27 點(diǎn)擊次數(shù)：3522</div> <div id="h9bpkuijf" class="NyNewsdetail_con"> <div>　　<strong>計(jì)量泵</strong>的流量調(diào)節(jié)是靠旋轉(zhuǎn)調(diào)節(jié)手輪，帶動(dòng)調(diào)節(jié)螺桿轉(zhuǎn)動(dòng)，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(dòng)行程來(lái)決定流量的大小。調(diào)節(jié)手輪的刻度決定柱塞行程，準(zhǔn)確率為95%。<br /> </div><div>　　凡是氣源壓力不夠高，無(wú)論是機(jī)械或測(cè)試裝置，均可采用增壓泵。采用氣體驅(qū)動(dòng)，無(wú)電弧及火花，*用于有易燃、易爆的液體或氣體場(chǎng)所。無(wú)論何種原因造成保壓回路壓力下降，增壓泵將自動(dòng)啟動(dòng)，補(bǔ)充泄漏壓力，保持回路壓力恒定。壓縮空氣、氮?dú)?、水蒸汽、天然氣等均可做作為泵的?qū)動(dòng)氣源。<br /> </div><div>　　計(jì)量泵也稱定量泵或比例泵，屬于往復(fù)式容積泵，用于精確計(jì)量的，通常要求其穩(wěn)定性精度不超過(guò)±1%。隨著現(xiàn)代化工業(yè)朝著自動(dòng)化操作、遠(yuǎn)距離自動(dòng)控制這一形勢(shì)的不斷發(fā)展，它的配套性強(qiáng)、適應(yīng)介質(zhì)(液體)廣泛的優(yōu)勢(shì)尤為顯得特出。<br /> </div><p align="center"><img src="https://img63.hbzhan.com/9/20230227/638131148905349974693.png" width="440" height="222" align="middle" alt="" /></p><p> </p><div>　　出口高壓水可直接送往鍋爐，也可送往與高壓母管相連的管道或送往高位水箱。運(yùn)行中由于某種原因，水泵突然停止運(yùn)轉(zhuǎn)時(shí)，泵內(nèi)壓力消失，與水泵出口相連的高壓水就會(huì)反向流回水泵。<br /> </div><div>　　出口裝有逆止閥時(shí)，它會(huì)立即關(guān)閉，防止高壓水反向流回水泵。如果水泵出口不裝逆止閥，高壓水就會(huì)反向流回水泵，水泵葉輪在高壓水的沖擊下產(chǎn)生倒轉(zhuǎn)。水泵出口裝逆止閥的目的是只允許水泵往外送水，而不允許水反向流回水泵，防止水泵突然停止運(yùn)轉(zhuǎn)時(shí)，高壓水反向流回水泵，造成水泵倒轉(zhuǎn)。泵結(jié)構(gòu)簡(jiǎn)單緊湊,制造容易,維護(hù)方便，有自吸能力，但流量、壓力脈動(dòng)較大且噪聲大。<br /> </div><div>　　如：各類建筑的地面蓄水池的進(jìn)水，地面鍋爐的冷水補(bǔ)水，地面空調(diào)系統(tǒng)冷卻水循環(huán)水池的補(bǔ)水，地面熱水循環(huán)水池的補(bǔ)水，消防和噴淋地面蓄水池的進(jìn)水.智能變頻恒壓供水節(jié)能控制柜,變頻供水節(jié)能控制柜假設(shè)整個(gè)系統(tǒng)由四臺(tái)水泵，一臺(tái)變頻器，一臺(tái)PLC的和的PID和一個(gè)壓力變送器及若干輔助部件構(gòu)成。</div> </div> <div id="h9bpkuijf" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-755737.html">選購(gòu)鍋爐加藥裝置要考慮以下幾個(gè)問(wèn)題</a></li> <li>下一篇：<a href="/Article-752717.html">隔膜計(jì)量泵石油和天然氣工業(yè)中的應(yīng)用</a></li> 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