冷卻塔噪音清理

冷卻塔降噪具體案例, 根據噪聲來源聲場分布和頻帶特性提出如下降噪方案：
1、為保證冷卻塔的散熱，不能對其進行封閉式隔聲處理，為此設置組合式聲屏障來阻止下部噪聲能量的傳播。
2、為有效減少噪聲聲波的繞射，在冷卻塔底部設置吸聲隔聲組合式聲屏障，吸收低頻噪聲
3、在冷卻塔中部設置阻尼隔聲板和寬頻帶組合式吸聲材料提高中低頻吸聲效果
4、落水的高頻噪聲用超細玻璃棉材料吸收
6、考慮到現場實際情況方案中的所有降噪設施都進行了防塵防潮處理同時不影響冷卻塔的通風和散熱功能。
為保(bao)證所有噪聲(sheng)(sheng)(sheng)(sheng)(sheng)敏感點都在聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)障的(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)影(ying)區內，從而獲(huo)得最佳的(de)降(jiang)噪效(xiao)果，根據現(xian)(xian)場情況(kuang)和聲(sheng)(sheng)(sheng)(sheng)(sheng)學計算(suan)確定聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)障有效(xiao)高度為3m，聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)障采用寬頻帶組合吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)結(jie)(jie)構和阻尼隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)板的(de)組合式(shi)(shi)(shi)結(jie)(jie)構其(qi)(qi)中 寬頻帶組合式(shi)(shi)(shi)吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)結(jie)(jie)構的(de)吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)特(te)性曲(qu)線。 消聲(sheng)(sheng)(sheng)(sheng)(sheng)器選擇現(xian)(xian)有的(de)阻性消聲(sheng)(sheng)(sheng)(sheng)(sheng)器包括直管式(shi)(shi)(shi)、復合式(shi)(shi)(shi)、片式(shi)(shi)(shi)、盤式(shi)(shi)(shi)和折板式(shi)(shi)(shi)等(deng)幾種方式(shi)(shi)(shi)，其(qi)(qi)中片式(shi)(shi)(shi)消聲(sheng)(sheng)(sheng)(sheng)(sheng)器具有消聲(sheng)(sheng)(sheng)(sheng)(sheng)量大，阻力較小，導流效(xiao)果和安(an)裝(zhuang)靈 活(huo)的(de)特(te)點，因此選擇在風機(ji)出口處安(an)裝(zhuang)片式(shi)(shi)(shi)消聲(sheng)(sheng)(sheng)(sheng)(sheng)器，同時考慮到噪聲(sheng)(sheng)(sheng)(sheng)(sheng)特(te)點在設計時特(te)別選用了寬頻吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)材(cai)料

冷卻塔噪音生產原因

人類對改(gai)善生活環境(jing)要求的(de)日(ri)益增長和(he)水資(zi)源的(de)日(ri)趨緊張，是一(yi)對發展中的(de)矛盾，冷(leng)(leng)卻(que)(que)(que) 塔(ta)實(shi)現了(le)(le)(le)冷(leng)(leng)卻(que)(que)(que)水循環利用，大大減少了(le)(le)(le)熱交(jiao)換系統對冷(leng)(leng)卻(que)(que)(que)水的(de)消耗。因此(ci)，冷(leng)(leng)卻(que)(que)(que)塔(ta)在(zai)工業和(he)民用建筑等領域得到了(le)(le)(le)廣泛應用，幵丏為節水事業作出(chu)了(le)(le)(le)重大貢獻，但是它又產生噪(zao)聲，對環境(jing)造成噪(zao)音污染。這一(yi)問題已被(bei)國家和(he)社會充分關注。

噪(zao)音污染是一種嚴重的(de)(de)(de)環(huan)境問題(ti)，這(zhe)是因為(wei)民用(yong)冷卻塔一般都(dou)安裝在居民區(qu)，所以用(yong)戶 及其周圍(wei)居民都(dou)對冷卻塔的(de)(de)(de)噪(zao)聲(sheng)(sheng)指標提出了噪(zao)聲(sheng)(sheng)限(xian)值要求，為(wei)此各地環(huan)保局對冷卻塔產品的(de)(de)(de)生(sheng)產和(he)使用(yong)做(zuo)出了嚴格的(de)(de)(de)限(xian)制。

冷卻塔降噪標準

《中華人民共和國環境保護法》及《中華人民共和國環境噪聲污染防治條例》，保障城市居民的生活聲環境質量，我國制訂了《社會生活環境噪聲排放標準 GB22337-2008》。
1、城市區域環境噪聲標準限值見表：
2、夜間突發的噪聲，其最大值不準超過標準值15dB。
3、區域及時間的劃定：
(1)、各類標準適用區域由當地人民政府劃定。
(2)、本標準晝間、夜間的時間由當地人民政府按當地習慣和季節變化劃定。

(時段) 邊界外聲環境功能區	晝間	夜間
0	50	40
1	55	45
2	60	50
3	65	55
4	70	55

冷卻塔降噪方法

冷卻(que)塔降(jiang)噪(zao)防(fang)凍(dong)裝置專用(yong)吸(xi)(xi)(xi)(xi)音(yin)降(jiang)噪(zao)板(ban)，包(bao)括支(zhi)撐架、小(xiao)圓弧(hu)導(dao)風(feng)(feng)頭、多(duo)孔(kong)板(ban)、防(fang)水無紡布、吸(xi)(xi)(xi)(xi)音(yin)棉，多(duo)孔(kong)板(ban)包(bao)覆(fu)在(zai)支(zhi)撐架的(de)(de)(de)左右側面(mian)(mian)和尾部端面(mian)(mian)上(shang)，在(zai)支(zhi)撐架內填充吸(xi)(xi)(xi)(xi)音(yin)棉，吸(xi)(xi)(xi)(xi)音(yin)降(jiang)噪(zao)板(ban)的(de)(de)(de)截面(mian)(mian)形狀為"子彈"形，由于(yu)吸(xi)(xi)(xi)(xi)音(yin)降(jiang)噪(zao)板(ban)的(de)(de)(de)外端由小(xiao)圓弧(hu)導(dao)風(feng)(feng)頭與梯形吸(xi)(xi)(xi)(xi)音(yin)段(duan)對接而(er)成(cheng)，在(zai)相(xiang)同間距條件下，增大了(le)兩相(xiang)鄰吸(xi)(xi)(xi)(xi)音(yin)降(jiang)噪(zao)板(ban)之(zhi)間進風(feng)(feng)口截面(mian)(mian)，更利于(yu)進風(feng)(feng)導(dao)入(ru)(ru)，提(ti)高(gao)了(le)進風(feng)(feng)的(de)(de)(de)導(dao)入(ru)(ru)風(feng)(feng)速；由于(yu)將尾部端面(mian)(mian)設計成(cheng)吸(xi)(xi)(xi)(xi)音(yin)結構，增大了(le)吸(xi)(xi)(xi)(xi)音(yin)降(jiang)噪(zao)板(ban)的(de)(de)(de)有效(xiao)吸(xi)(xi)(xi)(xi)音(yin)面(mian)(mian)積，提(ti)高(gao)了(le)吸(xi)(xi)(xi)(xi)音(yin)降(jiang)噪(zao)效(xiao)果(guo)，經試(shi)驗(yan)(yan)，在(zai)同等試(shi)驗(yan)(yan)條件下，降(jiang)噪(zao)效(xiao)果(guo)提(ti)高(gao)10％～15％。

冷卻塔降噪特點

1.【特菱公司超靜音冷卻塔生產標準】
2.【玻璃纖維增強塑料冷卻塔第1部分：中小型玻璃纖維增強塑料冷卻塔】（GB7190.1-2008）；       
3.【塑料密度和相對密度試驗方法】GB/T1033；
4.【塑料拉伸性能試驗方法 】GB/T1040；
5.【玻璃纖維增強塑料彎曲性能試驗方法】（GB/T1449-83）；
6.【塑料燃燒性能試驗方法氧指數法】（GB/T2406）；
7.【玻璃纖維增強塑料樹脂含量試驗方法】（GB/T2577-89）；
8.【纖維增強塑料巴氏（巴柯爾）硬度試驗方法】（GB/T3854-83）；
9.【玻璃纖維增強塑料燃燒性能試驗方法氧指數法】 （GB/T8924-88）；
10.【超靜音冷卻塔風機】HG/T3132-1998 此標準是對ZBJ72001L型冷卻塔風機]標準的修改而編制的；
11.【超靜音冷卻塔性能測試】 CTIATC-105；
12.【超靜音冷卻塔性能測試方法】BS 4485:PART2；
13.【超靜音冷卻塔熱力性能驗收測試】DIN 1947；
14 【機力通風式冷卻塔性能實驗方法】JIS B8609

冷卻塔降噪方案

隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)一般設計為(wei)(wei)(wei)距冷(leng)(leng)卻塔(ta)(ta)進(jin)風(feng)(feng)(feng)口(kou)的(de)(de)(de)(de)(de)(de)(de)距離(li)(li)大于(yu)(yu)冷(leng)(leng)卻塔(ta)(ta)進(jin)風(feng)(feng)(feng)口(kou)高(gao)(gao)度(du)，屏(ping)(ping)(ping)障(zhang)(zhang)高(gao)(gao)度(du)等(deng)于(yu)(yu)屏(ping)(ping)(ping)障(zhang)(zhang)到(dao)進(jin)風(feng)(feng)(feng)口(kou)的(de)(de)(de)(de)(de)(de)(de)距離(li)(li)。降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)效(xiao)(xiao)(xiao)果一般在(zai)(zai)10-15dBA，理(li)論上降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)量可(ke)(ke)2OdB(A)左右(you)，但(dan)存在(zai)(zai)著聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)繞(rao)(rao)(rao)射(she)(she)(she)問(wen)題，在(zai)(zai) 聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)影(ying)(ying)(ying)(ying)區(qu)范圍內(nei)降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)量較(jiao)好，繞(rao)(rao)(rao)射(she)(she)(she)區(qu)和(he)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)亮區(qu)降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)效(xiao)(xiao)(xiao)果較(jiao)差，因此實際工程上很難將其影(ying)(ying)(ying)(ying)響(xiang)(xiang)(xiang)(xiang)區(qu)內(nei)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)降(jiang)(jiang)(jiang)(jiang)(jiang)低(di)(di)20dB(A)；對(dui)(dui)(dui)通(tong)風(feng)(feng)(feng)影(ying)(ying)(ying)(ying)響(xiang)(xiang)(xiang)(xiang)不(bu)大，維(wei)護比較(jiao)簡單；建設聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)的(de)(de)(de)(de)(de)(de)(de)技術要(yao)求(qiu)不(bu)高(gao)(gao)，但(dan)對(dui)(dui)(dui)結(jie)構(gou)要(yao)求(qiu)相當高(gao)(gao)，并(bing)且投資(zi)成(cheng)本隨著高(gao)(gao)度(du)的(de)(de)(de)(de)(de)(de)(de)增加(jia)成(cheng)倍增加(jia)；隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)法及(ji)特點：隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)的(de)(de)(de)(de)(de)(de)(de)結(jie)構(gou)可(ke)(ke)分(fen)為(wei)(wei)(wei)地(di)上和(he)地(di)下(xia)二部分(fen)，地(di)上部分(fen)為(wei)(wei)(wei)厚(hou)約 20 cm的(de)(de)(de)(de)(de)(de)(de)屏(ping)(ping)(ping)蔽聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)的(de)(de)(de)(de)(de)(de)(de)巨(ju)型、連續(xu)板(ban)式(shi)立(li)面(mian)（包括斜撐），其頂部為(wei)(wei)(wei)扇形吸聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)體或(huo)內(nei)傾式(shi)遮檐；地(di)下(xia)部分(fen)則(ze)為(wei)(wei)(wei)承重、抗(kang)傾覆（風(feng)(feng)(feng)荷載）的(de)(de)(de)(de)(de)(de)(de)基(ji)礎。 聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)的(de)(de)(de)(de)(de)(de)(de)降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)效(xiao)(xiao)(xiao)果聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)遇到(dao)屏(ping)(ping)(ping)障(zhang)(zhang)發生(sheng)的(de)(de)(de)(de)(de)(de)(de)繞(rao)(rao)(rao)射(she)(she)(she)現(xian)象會減(jian)弱(ruo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)的(de)(de)(de)(de)(de)(de)(de)隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)作用(yong)(yong)(yong)，而繞(rao)(rao)(rao)射(she)(she)(she)能力與聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)的(de)(de)(de)(de)(de)(de)(de)頻(pin)(pin)率有(you)(you)關(guan)，所(suo)以(yi)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)的(de)(de)(de)(de)(de)(de)(de)降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)效(xiao)(xiao)(xiao)果與聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)的(de)(de)(de)(de)(de)(de)(de)頻(pin)(pin)率即波(bo)(bo)長的(de)(de)(de)(de)(de)(de)(de)關(guan)系很大。聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang) 對(dui)(dui)(dui)于(yu)(yu)波(bo)(bo)長短、不(bu)易(yi)繞(rao)(rao)(rao)射(she)(she)(she)的(de)(de)(de)(de)(de)(de)(de)高(gao)(gao)頻(pin)(pin)波(bo)(bo)的(de)(de)(de)(de)(de)(de)(de)屏(ping)(ping)(ping)蔽作用(yong)(yong)(yong)十(shi)分(fen)顯著，可(ke)(ke)以(yi)在(zai)(zai)屏(ping)(ping)(ping)障(zhang)(zhang)后面(mian)形成(cheng)很長的(de)(de)(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)影(ying)(ying)(ying)(ying)區(qu)；而對(dui)(dui)(dui)于(yu)(yu)波(bo)(bo)長、具有(you)(you)很強(qiang)繞(rao)(rao)(rao)射(she)(she)(she)能力的(de)(de)(de)(de)(de)(de)(de)低(di)(di)頻(pin)(pin)波(bo)(bo)的(de)(de)(de)(de)(de)(de)(de)屏(ping)(ping)(ping)蔽作用(yong)(yong)(yong)則(ze)十(shi)分(fen)有(you)(you)限。當然(ran)(ran)，也(ye)可(ke)(ke)以(yi)通(tong)過(guo)加(jia)高(gao)(gao)屏(ping)(ping)(ping)障(zhang)(zhang)的(de)(de)(de)(de)(de)(de)(de)辦法來削弱(ruo)繞(rao)(rao)(rao)射(she)(she)(she)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)對(dui)(dui)(dui)受聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)點的(de)(de)(de)(de)(de)(de)(de)影(ying)(ying)(ying)(ying)響(xiang)(xiang)(xiang)(xiang)。由(you)于(yu)(yu)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)對(dui)(dui)(dui)高(gao)(gao)頻(pin)(pin)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)產生(sheng)明顯有(you)(you)效(xiao)(xiao)(xiao)的(de)(de)(de)(de)(de)(de)(de)屏(ping)(ping)(ping)蔽作用(yong)(yong)(yong)，而冷(leng)(leng)卻塔(ta)(ta)落(luo)(luo)水噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)(de)頻(pin)(pin)譜以(yi)中(zhong)高(gao)(gao)頻(pin)(pin)成(cheng)分(fen)為(wei)(wei)(wei)主(zhu)，所(suo)以(yi)采用(yong)(yong)(yong)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)可(ke)(ke)以(yi)取得一定的(de)(de)(de)(de)(de)(de)(de)降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)效(xiao)(xiao)(xiao)果。 聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)的(de)(de)(de)(de)(de)(de)(de)降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)效(xiao)(xiao)(xiao)果以(yi)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)影(ying)(ying)(ying)(ying)區(qu)中(zhong)緊挨屏(ping)(ping)(ping)障(zhang)(zhang)的(de)(de)(de)(de)(de)(de)(de)局部區(qu)域為(wei)(wei)(wei)最好，最高(gao)(gao)可(ke)(ke)達 25 db 聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)影(ying)(ying)(ying)(ying)區(qu)以(yi)外的(de)(de)(de)(de)(de)(de)(de)降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級則(ze)由(you)于(yu)(yu)中(zhong)頻(pin)(pin)繞(rao)(rao)(rao)射(she)(she)(she)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)的(de)(de)(de)(de)(de)(de)(de)到(dao)達而有(you)(you)所(suo)反彈，但(dan)對(dui)(dui)(dui)于(yu)(yu)高(gao)(gao)頻(pin)(pin)波(bo)(bo)而言(yan)，衰減(jian)量一般還(huan)可(ke)(ke)達到(dao) 10－ 15db 然(ran)(ran)而由(you)于(yu)(yu)冷(leng)(leng)卻塔(ta)(ta)落(luo)(luo)水噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)中(zhong)尚含有(you)(you)中(zhong)頻(pin)(pin)成(cheng)分(fen)，所(suo)以(yi)其降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)效(xiao)(xiao)(xiao)果會有(you)(you)折扣。對(dui)(dui)(dui)于(yu)(yu)建筑外受聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)點來說(shuo)，為(wei)(wei)(wei)取得滿意(yi)(yi)的(de)(de)(de)(de)(de)(de)(de)降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)效(xiao)(xiao)(xiao)果，在(zai)(zai)不(bu)影(ying)(ying)(ying)(ying)響(xiang)(xiang)(xiang)(xiang)進(jin)風(feng)(feng)(feng)的(de)(de)(de)(de)(de)(de)(de)前提下(xia)，尚應(ying)通(tong)過(guo)加(jia)大屏(ping)(ping)(ping)障(zhang)(zhang)高(gao)(gao)度(du)調節之。 安裝隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)時主(zhu)要(yao)注意(yi)(yi)的(de)(de)(de)(de)(de)(de)(de)是隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)離(li)(li)冷(leng)(leng)卻塔(ta)(ta)百葉進(jin)風(feng)(feng)(feng) 口(kou)的(de)(de)(de)(de)(de)(de)(de)距離(li)(li)在(zai)(zai)1m左右(you)以(yi)保(bao)冷(leng)(leng)卻塔(ta)(ta)換氣(qi)進(jin)風(feng)(feng)(feng)口(kou)不(bu)受阻，從(cong)而使冷(leng)(leng)卻塔(ta)(ta)冷(leng)(leng)卻效(xiao)(xiao)(xiao)果更(geng)好 。 為(wei)(wei)(wei)防(fang)止噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)繞(rao)(rao)(rao)射(she)(she)(she)而影(ying)(ying)(ying)(ying)響(xiang)(xiang)(xiang)(xiang)消聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)導(dao)流(liu)(liu)片(pian)的(de)(de)(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)學效(xiao)(xiao)(xiao)果，可(ke)(ke)以(yi)在(zai)(zai)消聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)導(dao)流(liu)(liu)片(pian)附近(jin)安裝一定長度(du)的(de)(de)(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)(ping)障(zhang)(zhang)，起(qi)到(dao)輔助降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)作用(yong)(yong)(yong)。 落(luo)(luo)水消聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)法及(ji)特點 ：即在(zai)(zai)冷(leng)(leng)卻塔(ta)(ta)底部水面(mian)以(yi)上安裝落(luo)(luo)水消能 降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)材(cai)料，從(cong)源頭(tou)著手降(jiang)(jiang)(jiang)(jiang)(jiang)低(di)(di)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)源。 降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao) 效(xiao)(xiao)(xiao)果一般在(zai)(zai)6— 10dBA；初次投資(zi)較(jiao)少，對(dui)(dui)(dui)通(tong)風(feng)(feng)(feng)散熱(re)沒有(you)(you)影(ying)(ying)(ying)(ying)響(xiang)(xiang)(xiang)(xiang)；缺點是降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)量較(jiao)少，部件易(yi)損壞(huai)，維(wei)護工作量大， 需(xu)要(yao)持續(xu)投入，并(bing)還(huan)可(ke)(ke)能引起(qi)凝汽器(qi)管(guan)子堵塞的(de)(de)(de)(de)(de)(de)(de)問(wen)題。 "落(luo)(luo)水消能降(jiang)(jiang)(jiang)(jiang)(jiang)噪(zao)(zao)(zao)(zao)器(qi)" 以(yi)六角蜂(feng)窩斜 管(guan)為(wei)(wei)(wei)主(zhu)體形式(shi)，層高(gao)(gao) 18 cm，由(you)豎向導(dao)入段(duan)(duan)、無聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)擦貼(tie)斜段(duan)(duan)、粘滯減(jian)速斜段(duan)(duan)、疏散灑落(luo)(luo)挑流(liu)(liu)段(duan)(duan)等(deng)四個功能段(duan)(duan)組成(cheng)。