1、 KS B ISO 7841KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS KS B ISO 7841 : 2007(2012 ) 2007 10 31 http:/www.kats.go.krKS B ISO 7841: 2007 : ( ) ( ) ( ) ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2002 10 29 :2007 10 31 :2012 12 13 : 20120703 : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS B ISO 784
2、1 : 2007 (2012 ) Automatic steam traps Determination of steam lossTest methods 1988 1 ISO 7841, Automatic steam traps Determination of steam lossTest methods , . 1 KS B ISO 6552 2 . , . . . . 2 . . ( ) . KS B ISO 651, KS B ISO 6552, ISO 652, Enclosed scale calorimeter thermometers ISO 653, Long soli
3、d stem thermometers for precision use ISO 4185, Measurement of liquid flow in closed conduits Weighing method 3 1, 2 . ( 1 ) 0.02 m3 . . , . ( ) . KS B ISO 7841: 2007 2 JhCm1075.023oR , . a) KS B ISO 651, ISO 652, ISO 653 b) ISO 4185 . 4 A (238 ) 3.2 MPa1) , . 5 kg/h 1 % . a 1 A 4.1 4.1.1 . 1) 1 MPa
4、 10 bar 1 5 4 6 2 7 a 3 LKS B ISO 7841: 2007 3 4.1.1.1 1, 2, 3 , (ps) . 4.1.1.2 (mt) (ps) (s) . 4.1.1.3 ( ) . (1) (a) 8 . (1) (m1) . 4.1.1.4 3 4 . 3 . 4.1.1.5 . 4.1.1.6 4 3 , (2) (m2) . 4.1.1.7 , , , . , 3 . . 10 % 500 g/h . , . 4.1.2 . 4.1.2.1 1, 2, 3 , (ps) . 4.1.2.2 , (mt) (ps) (s) . 4.1.2.3 , 5
5、6 . 6 7 . (E, L), , (m3, m4), 4.3 t . kg/h . fgs34EL6003)(htmm hfgs: (J/kg) 4.1.2.4 4.1.2.3 4.1.2.5 . 5 4.1.2.3 . KS B ISO 7841: 2007 4 4.1.2.5 ( ) . (1) (a) 8 . (1) (m1) . 4.1.2.6 3 4 . 3 . 4.1.2.7 . 4.1.2.8 4 3 , (2) (m2) . 4.1.2.9 , , , . , 3 . . 10 % 500 g/h . , . 4.2 4.2.1 , . 4.2.2 . . . 4.2.3
6、 qmsthmcmmhhmhmp +6003)()(fgs12tiffsf1if2f qms : (kg/h) mi : (kg) mf : (kg) m1 : , (kg) m2 : , (kg) mt : (kg) hf1 : (J/kg) hf2 : (J/kg) hfs : (J/kg) hfgs : (J/kg) KS B ISO 7841: 2007 5 cp : (J/kg K) 1 : () 2 : () t : ( ) 4.3 A 1. . 2. 3. 4. . 5. . 6. . 7. . 8. . 9. , mt . 10. , , m1 .kg 11. , , m2 .
7、kg 12. , m (11. 10.) .kg 13. , t s 14. , a 15. , s 16. , 1 17. , 2 18. , pa . bar 19. , ps bar 20. 21. / 22. , cp (16. 17. 8. 20. ) J/(kg K) 23. , hf1 (16. 21. )J/kg 24. , hf2 (17. 21. )J/kg 25. , hfs (15. 21. ) .J/kg 26. , hfgs (15. 21. ) .J/kg 27. , mi (10. 9.) .kg 28. , mf (11. 9.).kg 29. , mihf1
8、 (27.)(23.).J 30. , mfhf2 (28.)(24.) J KS B ISO 7841: 2007 6 31. , hfs(mf mi) (25.)(28. 27.) .J 32. , cpmt(2 1) (22.)(9.)(17. 16.) J 33. , qms.136003.26.32.31.29.30+kg/h 34. , qmw .33.136003.)12(.kg/h 35. kg/h 5 B (238 ) 32 bar , . 5 kg/h 1 % . a . b 2 B 5.1 5.1.1 . 5.1.1.1 1, 2, 3 , (ps) . 5.1.1.2
9、20 kg . 1 5 4 6 2 7 b 3 a 8 KS B ISO 7841: 2007 7 5.1.1.3 4 3 . 4 3 8 . . . 5.1.1.4 3 8 4 . . 5.1.1.5 (ps), (s), (o) . 5.1.1.6 4 3 . 5.1.1.7 . 8 , . . . 5.1.1.8 5.2 . 5.1.1.9 , 3 . . 3 10 % 500 g/h . , . 5.1.2 . 5.1.2.1 1, 2, 3 , (ps) . 5.1.2.2 , 5 6 . 6 7 . (E, L), , (m5, m6), 5.3 t . kg/h . fgs56E
10、L6003)(htmm hfgs: (J/kg) 5.1.2.3 5.1.2.2 5.1.2.4 . 5 5.1.2.2 . 5.1.2.4 20 kg . 5.1.2.4 , 5.1.2.5 5.1.2.6 . 5.1.2.5 4 3 . 4 3 8 . . . KS B ISO 7841: 2007 8 5.1.2.6 3 8 4 . . 5.1.2.7 (ps), (s), (o) . 5.1.2.8 4 3 . 5.1.2.9 . 8 . . . 5.1.2.10 5.2 . 5.1.2.11 , 3 . . 3 10 % 500 g/h . , . 5.2 5.2.1 , . 5.2
11、.2 . . . 5.2.3 qmsthhhhmhhm6003)()(fsgsgofscfsgost qms: (kg/h) mst: (kg) mc: (kg) hfs: (J/kg) hfo: (J/kg) hgo: (J/kg) hgs: (J/kg) t : ( ) kg/h qms , . qms, max 600331.0412vDKS B ISO 7841: 2007 9 D : (m) 1 : (m3/kg) 5.3 B 1. . 2. 3. 4. . 5. . 6. . 7. . 8. , , m1 kg 9. , , m2 kg 10. , m3 kg 11. , m4 k
12、g 12. , t s 13. , a 14. , s 15. , o 16. , pa . bar 17. , ps bar 18. / 19. , hfs (14. 18. ) J/kg 20. , hfo (15. 18. ) .J/kg 21. , hgo (15. 18. ) J/kg 22. , hgs (14. 18. ) J/kg 23. , mst (9. 8.).kg 24. , mc (11. 10.) .kg 25. mst(hgo hfs) 23.(21. 19.)J 26. mc(hfs hfo) 24.(19. 20.) J 27. (hgs hfs) (22.
13、19.).J/kg 28. , qms .126003.27.26.25.kg/h 29. , qmw .28.12.)24.23(6003+.kg/h KS B ISO 7841: 2007 10 A ( ) 1 KS B ISO 6704, 2 KS B ISO 6948, KS B ISO 7841: 2007 11 KS B ISO 7841 : 2007 2002 . , . 1 ISO KS ISO . 2 a) , ISO 1988 ISO 7841 . b) , . 3 a) ISO 7841 KS . b) KS A 0001 . 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS B ISO 7841: 2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Automatic steam traps Determination of steam loss Test methods ICS 23.060.01 Korean Agency for Technology and Standards http:/www.kats.go.kr
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