1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS B ISO 7291 300 bar , KS B ISO 7291:2008 2008 9 8 http:/www.kats.go.krKS B ISO 7291:2008 : ( ) ( ) ( ) ( ) : (http:/www.standard.go.kr) : : 2003 12 6 : 2008 9 8 2008-0506 : : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS B ISO 7291:2008 300 bar , Gas
2、welding equipment Pressure regulators for manifold systems used in welding, cutting and allied processes up to 300 bar 1999 2 ISO 7291, Gas welding equipment Pressure regulators for manifold systems used in welding, cutting and allied processes up to 300 bar , . 1 , . 300 bar(30 MPa) , , (MPS) (CO2)
3、 , . KS B ISO 2503 . 2 . . ( ) . KS B ISO 5171, ISO 554: 1976, Standard atmospheres for conditioning and/or testing Specifications ISO 9090: 1989, Gas tightness of equipment for welding and allied process ISO 9539: 1988, Materials for equipment used in welding, cutting and allied processes 3 . KS B
4、ISO 7291:2008 2 3.1 , 4 1 . . 1 5 2 6 3 7 4 1 5 5.1 1 . KS B ISO 7291:2008 3 1 i ap1 p2 bp2ii (9.4.5 ) p2RR (9.4.4 ) p3 : p3 2 p2 1 bar(0.1 MPa) p4 ( 1 ) p59.4.5 Q1 Qmax QRV R Tf U aKS B 4603 . bKS B 4603 . 5.2 5.2.1 1) bar(10 1 MPa) . 5.2.2 2) m3/h ( 2 ). 2 LPG, CO2 1 0.95 1.02 0.851 3.81 2.695 1.0
5、5 0.8 0.808 0.983 0.93 1 0.837 3.75 2.65 1.03 0.784 0.792 U . 10U 1) 2) ISO 554 . KS B ISO 7291:2008 4 0: 1: 5.2.3 () . 6 6.1 ISO 9539 . 6.2 , 6.2.1 , (9.5.3 ). , . 6.2.2 . A . . p2 . . 1.5 bar . 6.2.3 , . , 0.1 mm . 6.2.4 . , . . 6.2.5 KS B ISO 7291:2008 5 6.2.5.1 . , . 6.2.5.2 . , . . 6.2.5.3 p2 i
6、, R . 2 p2 , QRV , Q1 1/2 . QRV (0.5 Q1) , p2 . . . 6.2.6 KS B ISO 5171 . . . 6.2.7 6.2.7.1 ( ) , KS B ISO 7291:2008 6 . 6.2.7.2 , ISO 9090 . 10 cm3/h . 6.2.7.3 Tf Tf Q1 ( 2 ). Q1 30 m3/h , Tf 50 cm3/h Q1 1 500 m3/h , Tf 2 500 cm3/h 2 . Tf 5/3 Q1 Tf cm3/h , Q1 m3/h . 2 6.2.8 6.2.8.1 4 (9.5.1.1 ). 6.
7、2.8.2 2 , , , (9.5.1.2 ). 7 7.1 . KS B ISO 7291:2008 7 7.2 . 8 8.1 8.1.1 p1 . 8.1.2 p2 Q1 . , . p2R . 8.1.3 p4 1.5 bar . 8.2 8.2.1 Qmax p3 . p3 2 p2 1 bar Qmax . 8.2.2 Q1 p2 ( 3 ). Q1 0.5 Qmax . p2R . KS B ISO 7291:2008 8 a) b) 3 3 p1bar(101MPa) p2bar(101MPa) 300 bar(30 MPa) 0 300a2 4b6 10 12.5 20 2
8、5 0.8 1.5 MPS 25c1.5 4 CO2200d2 4 10 p2, p4, p5 1.5 bar . a 15 b R20 . c65 MPS . . d53 CO2 8.3 8.3.1 R . 224pppR( p2 p2R . 2 ) p4 1 bar , p3 Q1, p2R . KS B ISO 7291:2008 9 Q1 , R 0.5 . 8.3.2 i . 225pppi( p2 p2i, 2 ) p5 4 Q1 p1 p3 . 0.3 10 bar 1.21.5p160 bar(6 MPa) 9.5.1.2 (6.2.8.2 ) . . . p1 . . . ,
9、 . 9.5.2 9.5.2.1 ISO 9090 . 9.5.2.2 5 p1 . ( .), . Tf 6.2.7.3 . p3 . 9.5.3 ( ) 3 ( 99.5 % , 0.004 % .) . ( 7 ) , . 7 . 10 , 20 ms ( 7 ). (11) 30 40 mm ( 7 9 ). 0 -5 KS B ISO 7291:2008 14 . 750 mm DN14 . . (603) 1.2p1 . : mm 1 6 2 7 3 8 4 9 5 10 ( ) 11 7 30 20 ( 8 ). a 8 10 . . , . 3 . ( ) 3 % . , ba
10、r , KS B ISO 7291:2008 15 . a) . b) . . 3 . (burning) . 9.5.4 . . 6.2.5 . . . pRV 2 p2 QRV (6.2.5 ). 9.5.5 . 1.5 bar . 9.6 (10. ) 15 , 15 . . . 10 10.1 9.6 . a) , KS B ISO 7291 b) c) Q1d) p2e) p1f) ( .) 5 g) h) i) KS B ISO 7291:2008 16 5 A O H D MPS Y M , , N 10.2 , . 11 , , . a) b) c) d) e) ( ) , K
11、S B ISO 7291:2008 17 A ( ) 3 . ( A.1) . (4) (3) 5 m . (6) 1 m . 12 mm 12 mm . 12 mm 25 mm . , , 5 . . . (251) bar . (5) , . (7) , (1) . (251) bar . . . . : mm 1 5 ( ) 2 6 3 7 4 A.1 20KS B ISO 7291:2008 18 B ( ) 1 KS B ISO 2503, 30 MPa , 300 bar , 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS B ISO 7291:2008 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Gas welding equipmentPressure regulators for manifold systems used in welding, cutting and allied processes up to 300 bar ICS 25.160.30