消聲器的選擇

1、消聲器的選擇消聲器是阻止聲音傳播而允許氣流通過的一種器件，是消除空氣動力性噪聲的重要措施。衡量消聲器的好壞，主要考慮以下三個方面：1、消聲器的消聲性能；（消聲量和頻譜特性）2、消聲器的空氣動力性能；（壓力損失等）3、消聲器的結構性能。（尺寸、價格、壽命等）消聲器的選用應根據(jù)防火、防潮、防腐、潔凈度要求，安裝的空間位置，噪聲源頻譜特性，系統(tǒng)自然聲衰減，系統(tǒng)氣流再生噪聲，房間允許噪聲級，允許壓力損失，設備價格等諸多因素綜合考慮并根據(jù)實際情況有所偏重。一般的情況是：消聲器的消聲量越大，壓力損失及價格越大；消聲量相同時，如果壓力損失越小，消聲器所占空間就越大。微孔板系列消聲設備是根據(jù)中科院院士馬大猷教

2、授的微孔板吸聲結構理論（微孔板的聲阻和孔徑的平方成反比，而且聲質量與孔徑無關，孔徑縮小到小于一毫米以下時，就可以使聲阻和聲質量的比例大為提高，不用另加多孔材料，就能獲得較好的吸聲性能）研制而成的新型消聲設備，是一種不采用阻性填料的全金屬結構消聲設備，具有消聲頻帶寬（特別是雙空腔結構）壓力損失小，耐高溫和高速氣流沖擊、氣流再生噪聲低等特點，適用于潔凈、超凈環(huán)境和易腐蝕易燃環(huán)境，如醫(yī)院、凈化房、制藥廠、食品廠、電子廠、化學廠、提煉廠、石油、油脂、溶劑以及其他危險品存放場所。和阻性消聲器相比，微孔板系列消聲器尤其適合高速風管系統(tǒng)，實驗表明：隨著風速的增加，它的動態(tài)插入損失的下降比阻性消聲器少得多，根

3、據(jù)我們的經(jīng)驗對于一般系統(tǒng)阻性消聲器的消聲效果要好于微孔板消聲器。消聲器的消聲頻率特性。阻性消聲器對中高頻噪聲效果比較好，微孔板消聲器消聲頻帶較寬。消聲器的適用風速一般為6-8m/s,最高不宜超過12m/s,同時注意消聲器的壓力損失。注意消聲器的凈通道截面積，風管和消聲器連接時，必要時（風速有限制時）需作放大處理。消聲器等消聲設備安裝，須有獨立的承重吊桿或底座；與聲源設備須通過軟接頭連接。當兩個消聲彎頭串聯(lián)使用時，兩個彎頭的連接間距應大于彎頭截面對角線長度的2.5倍。對于高溫、高濕、有油霧、水氣的環(huán)境系統(tǒng)一般選用微孔結構消聲設備，對于有潔凈要求的諸如手術室、錄音室、潔凈廠房等環(huán)境系統(tǒng)，應采用微孔

4、結構消聲設備。相鄰用房管路串通時，注意室內(nèi)噪聲通過管路相互影響，必要時風口作消聲處理。T701-6型阻抗復合式消聲器T701-6型阻抗復合式消聲器系列是較早空調通風系統(tǒng)配用的消聲器系列。T701-6系列共有十種大小不同規(guī)格，一般適用風量200030000m3/h,風速為6m/s,形斷面尺寸為800（寬）X500（高）2000（寬）X1800（高），其中1#4#消聲器長度為1.6m5#10#為0.9m。此種復合式消聲器的抗性消聲是由內(nèi)管截面的突變（不連續(xù)）及內(nèi)外管之間的膨脹室（1#4#為三室串聯(lián)，5#10#為二室串聯(lián)）作用所構成，而阻性消聲則由超細玻璃棉吸聲片吸收聲能以降低噪聲。T701-6型消

5、聲器系列的單位長度消聲量一般為：低頻10-15dB/m,中頻15-20dB/m,高頻20-25dB/m,單級壓力損失15-60Pa。T701-6型阻抗復合式消聲器系列規(guī)格表序號法蘭內(nèi)徑（mm外形尺寸（mm功效長度安裝長度風量ABA1B1LL1(m3/h)15202308005001600176033302510370800600160017605000370037010006001600176066704770400100080016001760832057005501200800900106010000678063012001000900106013340710006301500100090

6、010601664081000970150014009001060250009133097018001800900106035400101500131020001800900106050000T701-6型阻抗復合式消聲器的選用注意點：1.選用消聲器的風速6-10m/s為宜，最高12-14m/s.2.1-4號可單級使用，5-10號應多節(jié)串聯(lián)。1.3.消聲器可直接安裝于風機出風口，在系統(tǒng)中盡量安裝在靠近空調機房，消聲器外殼應與風管同樣作保溫處理。4.目前由于該消聲器體積較大逐漸由前面的幾種系列所替代。ZP100型片式消聲器ZP100型片式消聲器為國標產(chǎn)品。結構不復雜，壓力隕失也不大，但消聲量大。

7、是常用的阻性消聲器。吸聲層厚度100mm消聲量15dB(A),壓力損失2555Pa(風速510m/s)。ZP100型片式消聲器系列規(guī)格表序號法蘭內(nèi)徑AXB(mm)外形尺寸(mm)AoXBoxLo功效長度lo(mm)適用風量(m3/h)v=5m/sv=10m/s1500X200800X400X13001000180036002500X320800X520X13001000288057603630X3201030X520X14501000362072404630X5001030X700X145010005670113405800X3201200X520X14501000460092006800X5

8、001200X700X145010007200144007800X6301400X830X1600100090701814081000X3201400X520X1600100057601152091000X5001400X700X16001000900018000101000X6301400X830X160010001134022680111000X8001650X1000X160010001440028800121250X3201650X520X16001000720014400131250X5001650X700X160010001125022500141250X6301650X830X1

9、60010001417528350151250X8001650X1000X160010001800036000161250X10001650X1200X160010002250045000171600X3202200X520X16001000921618432181600X5002200X700X160010001440028800191600X6302200X830X160010001814036280201600X8002200X1000X160010002304046080211600X10002200X1200X160010002880057600221600X12502200X145

10、0X160010003600072000232000X5002440X700X160010001800036000242000X6302440X830X160010002268045360252000X8002440X1000X160010002880057600262000X10002440X1200X160010003600072000272000X12502440X1450X160010004500090000282000X16002440X1800X1600100057600115200ZP100.ZP200型片式消聲器與ZP100相比，ZP200四周吸聲層和中間吸聲片厚度為200mm

11、結卞與ZP100相同。低頻消聲量更大，消聲量20dB(A),壓力損失40159Pa(風速510m/s)。ZP200片式消聲器結構外形圖ZP200型片式消聲器系列規(guī)格表序號法蘭內(nèi)徑AXB(mm)外形尺寸(mm)AoXBoxLo后效長度lo(mm)適用風量(m3/h)v=5m/sv=10m/s1500X2001000X600X15001000180036002500X3201000X720X15001000288057603630X3201120X720X15001000362072404630X5001120X900X150010005670113405800X3201400X720X15001

12、000460092006800X5001400X720X150010007200144007800X6301400X1073X1500100090701814081000X3201800X720X1500100057601152091000X5001800X900X15001000900018000101000X6301800X1030X150010001134022680111000X8001800X1200X150010001440028800121250X3202200X720X1500100072001440131250X5002200X900X15001000112502250014

13、1250X6302200X1030X150010001417528350151250X8002200X1200X150010001800036000161250X10002200X1400X150010002250045000171600X3202400X720X18001000921618432181600X5002400X900X180010001440028800191600X6302400X1030X180010001814036280201600X8002400X1200X180010002304046080211600X10002400X1400X18001000288005760

14、0221600X12502400X1650X180010003600072000232000X5002840X900X180010001800036000242000X6302840X1030X180010002268045360252000X8002840X1200X180010002880057600262000X10002840X1400X180010003600072000272000X12502840X1650X180010004500090000282000X16002840X1650X1800100057600115200ZP片式消聲器的選用首先注意二點:1 .所需的倍頻程和A聲

15、級的消聲量是否能滿足設計要求，當離設計要求還有較大差距或一定差距時，可以在消聲器有效長度中間再加一節(jié)或二節(jié)1000mm長的消聲器，以提高消聲量和達到設計要求。2 .片式消聲器的斷面和長度是否有足夠安裝空間，當高度不夠寬度有余時可換斷面尺寸，向寬度擴展.ZKSZKS幽折板式消聲器ZKS型折板式消聲器消聲性能以中高頻為主，消聲量及壓力損失大于片式消聲器，長度為900mm在ZKS型折板式消聲器外殼加隔聲處理后，即為ZKSAS1,其消聲性能與壓力損失和ZKS型折板式消聲器相同。當消聲器設在機房或噪聲較高的房間時宜采用ZKSA型折板式消聲器。ZKS型折板式消聲器系列規(guī)格表序號法蘭內(nèi)徑AXB(mm)外形尺

16、寸A1XB1(mm)風量(m3/h)tr/tr1800x500800X50060002800X630800X630750031000X5001000X500900041000X6301000X6301000051000X8001000X8001350061250X6301250X6301350081250X10001250X10002100091600X8001600X80021000101600X10001600X10002700071250X8001250X80018000111600X12501600X125034000122000X10002000X100034000ZKSM1折板式消

17、聲器系列規(guī)格表序號法蘭內(nèi)徑AXB(mm)外形尺寸A1XB1(mm)風量(m3/h)tr/tr2800X630948X778750031000X5001148X648900041000X6301148X7781000051000X8001148X9481350061250X6301398X7781350071250X8001398X9481800081250X10001398X11482100091600X8001748X94821000101600X10001748X114827000111600X12501748X139834000122000X10002148X11483400013200

18、0X12502148X139843000142000X16002148X1748550001800X500948X6486000ZKS,ZKSA型折板式消聲器性能表TOOZKSA新瓶式消132000X12502000X125043000142000X16002000X160055000900一節(jié)7-837.27.014.018.019.52425.55-69.87.014.320.020.725.526.33-43.97.514.522.021.727.028.018007-851.611.022.331.032.239.740.95-624.512.625.535.436.845.346.8

19、消聲器長度mm125250500100020004000壓力損失Pa倍頻程下Hz的消聲量dB(A)風速m/s3-413.713.427.037.639.148.249.727007-868.713.226.837.238.647.649.15-631.415.932.244.746.557.259.03-418.617.234.948.450.462.164.0注：ZKS型消聲器不宜配置在機房內(nèi)或其他噪聲較高的房間內(nèi)，以防止聲短路。管式，蜂窩式消聲器這種消聲器的特點是以較小斷面獲得比片式和折板式更大的消聲量，但壓力損失也稍高于上述消聲器，適用于風量較小的系統(tǒng)。管式，蜂窩式消聲器系列規(guī)格表序號A

20、XB(mm)管數(shù)通道凈面積(m2)最大風量(m3/h)tr/tr2200X20010.0257003250X25010.04412004320X32010.07822005400X40040.10229006500X400405004050040.23166009630X63060.302860010800X40060.217620011800X50060.285800012800X63060.3741000013800X80090.46213000141000X80090.59817000151000X100090.77422000160X

21、16010.014400管式，蜂窩式消聲器性能表消聲器長度mm風速m/s壓力損失Pa倍頻程下Hz的消聲量dB(A)125250500100020004000900T7-851.010.712.724.231.537.233.55-617.712.515.426.734.037.433.83-411.812.716.428.036.039.235.818007-876.513.916.832.943.147.343.55-630.419.023.638.747.649.346.33-416.621.626.943.854.257.251.8管式，蜂窩式消聲器結構外形圖XW型微穿孔板消聲器XW型微

22、穿孔板消聲器結構簡單，消聲頻帶寬，壓力損失小，消聲量15-25dB(A)。該消聲器不使用阻性填料，工作時不起塵，不怕油霧、水氣，耐高溫和高速氣流沖擊，廣泛應用于通風空調系統(tǒng)中，特別是潔凈、超凈空調用房的空調系統(tǒng)。該消聲器現(xiàn)有4種型號系列：XW-I、XW-n型系列為矩形消聲器，XW-m、xw-iv型系列為圓形消聲器。其中xw-i型、XW-ni型為單空腔結構，XW-n型、XWW型為雙空腔結構。有效長度L1=2ni安裝長度L=2.16m。斷面尺寸全部根據(jù)全國通用標準風管制作。微穿孔板采用鍍鋅鋼板，鋁合金板或不銹鋼板。XW-I型微穿孔板消聲器XW-I型微穿孔板消聲器消聲量為15-20dB(A),壓力損

23、失為10-60Pa(風速5-15m/s)。有效長度L=2m,安裝長度L1=2.16m。XW-I型微穿孔板消聲器系列規(guī)格表序號法蘭尺寸AXB外形尺寸A1XB1最大風量m3/h序號法蘭尺寸AXB外形尺寸A1XB1最大風量m3/h1320X250520X450226018800X6301200X930150002320X320520X520290019800X8001200X1100250003400X250600X4502800201000X3201500X52090004400X320600X5203700211000X4001500X600150005400X400600X6004500221

24、000X5001500X800200006500X250800X4503550231000X6301500X930250007500X320800X5204600241000X8001500X1100300008500X400800X6005600251000X10001500X1300350009500X500800X8007100261250X4001850X6001800010630X250930X4504460271250X5001850X7002200011630X320930X6205800281250X6301850X9302600012630X4001030X600717029

25、1250X8001850X11003200013630X5001030X7009090301250X10001850X13003800014630X6301030X83011300311600X5002300X7002400015800X3201200X5207360321600X6302300X9303200016800X4001200X60010000331600X8002300X11004000017800X5001200X70012000341600X10002300X130045000XW-n型微穿孔板消聲器XW-n型微穿孔板消聲器消聲量為20-25dB(A),壓力損失10-40Pa

26、(風速5-15m/s)。有效長度L=2m,安裝長度L1=2.16m。xw-n型微穿孔板消聲器系列規(guī)格表序號法蘭尺寸AXB外形尺寸A1XB1最大風量m3/h111序號法蘭尺寸AXB外形尺寸A1XB1最大風量m3/h1320X250720X650230018800X6301400X1030236002320X320720X720290019800X8001400X1200300003400X250800X6502900201000X3201400X72092004400X320800X7203700211000X4001400X800180005400X400800X8007300221000X5

27、001400X900230006500X250900X6503600231000X6301600X1030295007500X320900X7204600241000X8001600X1200370008500X400900X8009000251000X10001600X1400468009500X500900X90011000261250X4001650X8002300010630X2501030X6504500271250X5001650X9002870011630X3201030X7205800281250X6301850X10303700012630X4001030X800115002

28、91250X8001850X12004680013630X5001030X90014500301250X10001850X14005850014630X6301230X103018000311600X5002000X9003650015800X3201200X7207400321600X6302200X10304700016800X4001200X80015000331600X8002200X12006000017800X5001200X90018360341600X10002200X140074900xw-n型.iv型微穿孔板消聲器xw-m型.W型微穿孔板消聲器為圓形。其中xw-m型是單空腔

29、結構，XW-V型是雙空腔結構。XW-m型消聲量為15-20dB(A),XW4V型消聲量為20-25dB(A)°XW-IH型.IV型消聲器壓力損失10-40Pa(風速5-15m/s)。有效長度L=2m,安裝長度L1=2.16m。XW-V型微穿孔板消聲器結構外形圖XW-rn型.iv型微穿孔板消聲器系列規(guī)格表序號法蘭內(nèi)徑d(mm外形尺寸D(mm風量m3/hXW-mXW-W110030040022021503504505403200400500890425045055014005300540640185063506207202880740070080035908450750850455095

30、0082092056201055087097071101160010001100810012650108011809000137001140124011020147501190129012500158001240134014400168501290139013800179001400150018240189501450155019900Z型軸流風機消聲器主要用于降低軸流風機噪聲，在各類工業(yè)、民用、公共建筑工程的進風、排風及礦井通風降噪工程中有廣泛應用。z型軸流風機消聲器結構外形圖Z型軸流風機消聲器規(guī)格表型號法蘭內(nèi)徑d(mm)外形尺寸風量(m3/h)外徑D(mm)后效長度L(mm)安裝長度L1(

31、mm)Z33034054005003900Z44045004005007700Z55056055306308500Z660670670080015000Z770780782092024000Z880890895010503600043000Z9909100911001200Z10101011101200130047000D型羅茨鼓風機消聲器主要適用于降低羅茨系列風機的進氣噪聲，也可以用于對排氣管道及其它高壓風機的降噪，消聲量30dB(A),壓力損失少于500Pa.D型羅茨鼓風機消聲器規(guī)格表序號法蘭內(nèi)徑d(mm)外徑D(mm)長度L(mm)功效長度L1(mm)最大風量(m3/h)150200100080015028025012001000420315040015001200120042004501700140024005300600190016004800635080021001800960074009002100180012000850010002100180015000P型盤式消聲器主要適用于鍋爐鼓風機的進口消聲、機房及廠房進、出風口的消聲，也適用各類隔聲罩的通風口消聲，消聲量10-18dB(A),阻力系數(shù)小于0.6。P型盤式消聲器分為pi(進風用)po(出風用)兩種形式，各有十種規(guī)格。P型盤式消聲器系列規(guī)格表型號法蘭內(nèi)徑d(mm)盤外徑D(mm