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class="ny_newsdetail_tips">更新時(shí)間：2024-08-30 點(diǎn)擊次數(shù)：716</div> <div id="xpai17u" class="ny_newsdetail_con"> <div>　　變頻鼓風(fēng)機(jī)的使用注意事項(xiàng)：<br /> </div><div>　　1)污水處理風(fēng)機(jī)曝氣器的質(zhì)量在國(guó)內(nèi)市場(chǎng)，曝氣器品種繁多，質(zhì)量參差不齊，價(jià)格跨度大。由于缺乏相關(guān)的行業(yè)標(biāo)準(zhǔn)，作坊式生產(chǎn)方式普遍存在。如果曝氣器釋放量(釋放量與水深、壓力、流速、曝氣器膠膜質(zhì)量均有關(guān)系)無(wú)法達(dá)到工藝要求，導(dǎo)致鼓風(fēng)機(jī)流量釋放率<70%時(shí)，就會(huì)發(fā)生喘振及增加風(fēng)機(jī)壓力。<br /> </div><div>　　2)污水處理風(fēng)機(jī)管道流速的問(wèn)題管道流速應(yīng)控制在16m/s以下，流速越快，管網(wǎng)阻力越大，可能會(huì)導(dǎo)致鼓風(fēng)機(jī)喘振，增加鼓風(fēng)機(jī)負(fù)荷。<br /> </div><div>　　3)不同企業(yè)生產(chǎn)的止回閥中的拉簧硬度不一，局部阻力損失也就不同。如果總體管道阻力損失大于鼓風(fēng)機(jī)出口壓力，也會(huì)出現(xiàn)喘振。鼓風(fēng)機(jī)停機(jī)時(shí)，需先關(guān)閉蝶閥，再關(guān)閉出口蝶閥，這*可以避免倒水問(wèn)題，不需安裝出口端止回閥。增加止回閥會(huì)加大阻力損失，增加設(shè)備成本和運(yùn)行費(fèi)用。<br /> </div><div>　　4)曝氣鼓風(fēng)機(jī)環(huán)境溫度的變化根據(jù)風(fēng)機(jī)行業(yè)標(biāo)準(zhǔn)，鼓風(fēng)機(jī)設(shè)計(jì)氣溫為20℃，每升高1℃，出口壓力會(huì)下降20mmH2O左右。例如，夏季氣溫為38℃時(shí)，出口壓力就會(huì)下降360mmH2O。豐源機(jī)械公司根據(jù)我國(guó)大多數(shù)地區(qū)夏季普遍高溫的氣候特征，將鼓風(fēng)機(jī)端設(shè)計(jì)溫度提高至37℃，即相同軸功率下，出口端壓力比國(guó)家標(biāo)準(zhǔn)高出340mmH2O。根據(jù)使用現(xiàn)場(chǎng)的具體情況，在進(jìn)行鼓風(fēng)機(jī)的選型時(shí)，也要考慮氣溫變化對(duì)鼓風(fēng)機(jī)出口壓力的影響。當(dāng)風(fēng)機(jī)使用地日極限溫度Tmax>37℃時(shí)，按20mmH2O/1℃對(duì)進(jìn)氣端壓力行補(bǔ)償。<br /> </div><div>　　5)效率不管是哪種類(lèi)型的曝氣鼓風(fēng)機(jī)，其效率都是相對(duì)的，在實(shí)際運(yùn)行中不可能總是保持率，任何增加的阻力(如閥門(mén)、管道彎頭、曝氣器阻力)都會(huì)使效率降低。所以保持鼓風(fēng)機(jī)率運(yùn)行，和工藝流程設(shè)計(jì)是密不可分的。<br /> </div><div>　　6)曝氣污水處理鼓風(fēng)機(jī)并網(wǎng)的問(wèn)題。兩臺(tái)或多臺(tái)鼓風(fēng)機(jī)并網(wǎng)時(shí)，必須考慮并網(wǎng)增加的阻力。以往有的用戶(hù)在使用單臺(tái)鼓風(fēng)機(jī)時(shí)運(yùn)轉(zhuǎn)正常，但兩臺(tái)或多臺(tái)鼓風(fēng)機(jī)并網(wǎng)時(shí)出現(xiàn)空氣流量不足，電機(jī)電流上不去的現(xiàn)象，這與總體供氣能力、曝氣器布局。</div> </div> <div id="xpai17u" class="ny_PrevNext"> <ul> 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