耐腐蝕化工泵是(shi)(shi)工業生產中常用泵(beng)(beng)，用戶(hu)在選(xuan)型后(hou)，安裝使用時(shi)，出現很(hen)大噪(zao)聲(sheng)(sheng)是(shi)(shi)什么原因呢，有哪些方法降低噪(zao)聲(sheng)(sheng)呢？水泵(beng)(beng)噪(zao)聲(sheng)(sheng)主要(yao)(yao)是(shi)(shi)氣體/液體在輸送過程中產生的空氣動(dong)(dong)力(li)噪(zao)聲(sheng)(sheng)，電機機殼受振(zhen)動(dong)(dong)激發的結構噪(zao)聲(sheng)(sheng)，機座因振(zhen)動(dong)(dong)產生的噪(zao)聲(sheng)(sheng)，以(yi)及電動(dong)(dong)機的噪(zao)聲(sheng)(sheng)。此類噪(zao)聲(sheng)(sheng)級峰(feng)值主要(yao)(yao)集中在低倍(bei)頻帶(dai)，大約在100-450Hz的范圍內。該(gai)聲(sheng)(sheng)源(yuan)在泵(beng)(beng)房正常運行時(shi)屬(shu)于(yu)穩態噪(zao)聲(sheng)(sheng)。管(guan)道(dao)噪(zao)聲(sheng)(sheng)是(shi)(shi)指水流(liu)在管(guan)道(dao)中流(liu)動(dong)(dong)時(shi)所產生的噪(zao)聲(sheng)(sheng)。另外，耐腐蝕化(hua)工泵的氣蝕(shi)現(xian)象及停泵水錘現(xian)象也能夠產生瞬時噪聲。給水管道產生的噪聲，受流速和(he)壓力影響。

  泵房整套設施(shi)產生的(de)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)主要(yao)為機械噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，目前(qian)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)學原理上治(zhi)理噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)方(fang)法較(jiao)常使(shi)用(yong)的(de)是(shi)控制噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)傳(chuan)播途徑，主要(yao)有隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)、吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)、消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)等。隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)是(shi)利(li)用(yong)隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)結構將聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)源(yuan)與受聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)點隔(ge)開；吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)是(shi)利(li)用(yong)吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)結構或吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)材(cai)料降低(di)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)；消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)是(shi)利(li)用(yong)阻(zu)抗、抗性、多孔擴(kuo)散等原理，降低(di)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)量值。

噪聲(sheng)控(kong)制措施應根據聲(sheng)學原理，盡量充分利用場地環境和條件如下(xia)： 

1.控制(zhi)機器設(she)(she)備(bei)和設(she)(she)備(bei)零件產生的(de)噪聲(sheng)。新建泵房水泵基礎(chu)宜采用重(zhong)量大的(de)，防(fang)止振(zhen)動產生噪聲(sheng)。而且應設(she)(she)橡膠隔振(zhen)墊等進行隔振(zhen)，從而減少振(zhen)動的(de)噪聲(sheng)；每個水泵機組單獨(du)設(she)(she)置基礎(chu)，防(fang)止產生共振(zhen)。在耐腐蝕泵吸、壓水(shui)管上盡(jin)可能的采(cai)用“軟性”聯結。定期檢修，發生問(wen)題如盤根漏水(shui)、設(she)備(bei)零件(jian)松動，設(she)備(bei)零件(jian)磨損嚴重、機械振(zhen)動等(deng)應及(ji)時維修，從而減少噪聲。

2.根據泵房(fang)環境(jing)，將聲源封閉不(bu)嚴密的泵房(fang)進行隔(ge)音處理，將耐腐蝕泵泵房產生(sheng)噪聲的房間采取吸聲/隔聲處理(li)，門窗也要做隔音(yin)處理(li)等。

  由(you)于(yu)不同廠家和類型的化工泵，工作原理和結構都會有差異，所以，對(dui)噪聲源進(jin)行現(xian)場(chang)勘測和分析對(dui)泵房(fang)隔音降噪方案的設計和材料的選擇都十(shi)分重要。

-THE END-

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