1、 ?G?G?G?GKS B ISO 13347 3G?G?G?G ?G?G?G G?G?G ?G?G G?G ?G 3 0 y J 3 0 D h ;C j 1* $; KS B ISO 13347 3: 2005 2005 12 29 B ISO 13347 3: 2005 ( ) ( ) ( ) ( ) : : 2005 12 29 2005 1145 : : ( ) ( 02 509 7287 90) . 7 5 , . B ISO 13347 3: 2005 1 1. 1 2. 1 3. 2 4. 4 5. 15 6. : 16 A() K2 17 18 i ICS 17.140.20
2、; 23.120 KS B ISO 3 : 13347 3: 2005Industrial fans Determination of fan sound power levels under standardized laboratory conditions Part 3: Enveloping surface methods 2004 1 ISO 13347 3 Industrial fans Determination of fan sound power levels under standardized laboratory conditions Part 3: Envelopin
3、g surface methods . 1. ISO 5801 KS B ISO 13349 . . , . . , , ( ISO 10302 .). . , . . 3.1 . ( ) KS A ISO 5136 (KS B ISO 13347 1 C ) . 2. . . KS A ISO 3744 KS A ISO 5136 KS B ISO 13347 1 1 : KS B ISO 13349 ISO 5801 Industrial fans Performance testing using standardised airways ISO 10302 Acoustics Meth
4、od for the measurement of airborne noise omitted by small air moving devices B ISO 13347 3: 2005 3. 3.1 ISO 5801 . a) A : , b) B : , c) C : , d) D : , ( D , .) KS A ISO 3744 . . , . . 3 m/s . 5 % . , (environment correction) K2 1/3 2 dB ( A ). 2 dB . 1. 3.2 3.2.1 KS B ISO 13347 1 6. . , KS A ISO 513
5、6 ISO 5801 B, C, D . (KS B ISO 13347 1 ). ISO 5801 . 10 dB . , . . , . , . 3.2.2 A . , . . . . . 3.2.3 B . . KS B ISO 13347 1 . ( ), , , (KS B ISO 2 B ISO 13347 3: 2005 13347 1 D ). . , (KS B ISO 13347 1 ). 3.2.4 C . . KS B ISO 13347 1 . , , , (KS B ISO 3347 1 D ). . , (KS B ISO 13347 1 ). 3.2.5 , D
6、 , . KS B ISO 13347 1 4 3.2.1, 3.2.3 3.2.4 KS B ISO 13347 1 . 3.2.6 KS B ISO 13347 1 8. . , . . E KS B ISO 13347 1 C.1 . LW in duct LW E 3.3 . , . . . , . 3.4 , . , . . . 10 dB . 6 10 dB KS A ISO 3744 . , . , . 3 B ISO 13347 3: 2005 4. 4.1 . , . 4.2 . 4.2.1 1 . . . . 4.2.2 2, 3, 4 . . dB . 4.2.3 5 .
7、 . . . 4.3 ( ) ( ) . LW(B, in cas) LW(B, out) . , , . , D h ( 1 ). , d . 1. , 3.3 ( , ). , 5 m/s . 2. 1 4 B ISO 13347 3: 2005 1 S 54 S2rDH 12 , Dr 1 2 S 33 2rD 8 , Dr a) h 45 Drb) h 45 Dr1 S 9 12D2rDr(h 15Dr) SH 15 , 1 2 S 6 7D2rDr(h 15Dr) 10 , c) 1.5 Dr h 45 Drd) 1.5 Dr h 45 Dr 1 5 B ISO 13347 3: 2
8、005 1 S 9 12D2rDr(h 15Dr) SH 7 , 1 2 S 6 7D2rDr(h 15Dr) 5 , e) h 1.5 Drf) h 1.5 Dr 1 ( ) 1 Do Dr H l1, l2, l3 S SH . . a), c) e) Ss . l1 l2 l3+=2/ m5.0m,5.0m5.0,r3oooDhlDDD . a) LW(A, tot), LW(B, in cas), LW(C, out cas) . Do 1 m 1 m 1 . Do , Dr ( ). , ( , 1 ). . b) LW(D, cas) , 1 m . 6 B ISO 13347 3
9、: 2005 c) LW(B, in), LW(C, out) , 1 . Dr Do h . , Ss S 10 % . . ( ) . 4.4 ( ) , . , , . B C . A , . , . . Do . K2 . 2 dB , . 4.4.1 ( A) x 0, y 0, z 0 r . 3De r De 3 1 m . A Do De4.4.2 Do( B, C D) De , h De . De . De , . Do Do h (De/2) Do h (b1/2) Do h (b2/2) b1: (m) b2: (m) 4.4.3 ( B, C D) x 0, y 0,
10、 z 0 r . r . 2Do r 4h r r 1 m . 4.4.4 , . . 7 B ISO 13347 3: 2005 4.4.4.1 A , 10 . x , z . 2 2 . 2 A i x x/r y y/r z z/r Si1 0.16 0.96 0.22 0.2 r22 0.78 0.60 0.20 0.2 r23 0.78 0.55 0.31 0.2 r24 0.16 0.90 0.41 0.2 r25 0.83 0.32 0.45 0.2 r26 0.83 0.40 0.38 0.2 r27 0.26 0.65 0.71 0.2 r28 0.74 0.07 0.67 0.2 r29 0.26 0.50 0.83 0.2 r210 0.10 0.10 0.99 0.2 r2 2 r2 r . 8 B ISO 13347 3: 2005 1 2 r 2 A ( 2 ) B, C , 13 . x , z . 3 , 3 . 9 B ISO 13347 3: 2005 1 2 * 3 B C ( 3 ) 10 B ISO 13347 3: 2005 3 B C i x x/r y y/r z z/r Si1 0.90 0.37 0.24 0.235 r22 0.90