JIS-B-8277-2003-ENG.pdf
《JIS-B-8277-2003-ENG.pdf》由会员分享,可在线阅读,更多相关《JIS-B-8277-2003-ENG.pdf(39页珍藏版)》请在三一文库上搜索。
1、J IS JAPANESE I N DUSTR IAL STA N DA R D Translated and Published by Ja pan ese Stan da rd s Associati on (KHK/ JSA) Expansion joint for pressure vessels ICs 21.120.20; 23.020.30 Reference number : JIS B 8277 : 2003 (E) PROTECTED BY COPYRIGHT 21 s Copyright Japanese Standards Association Provided by
2、 IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 08:50:15 MDTNo reproduction or networking permitted without license from IHS -,-,- B 8277 : 2003 Fore word This translation has been made based on the original Japanese Industrial Standard revi
3、sed by the Minister of Health, Labour and Welfare, and the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee, as the result of proposal for revision of Japanese Industrial Standard submitted by The High Pressure Gas Safety Institute of Japan
4、 (=KI/ Japanese Standards Association (JSA) with the draft being attached, based on the provision of Article 12 Clause 1 of the Industrial Standardization Law applicable to the case of revision by the provision f Article 14. Consequently JIS B 8277 : 1993 is replaced with this Standard. Attention is
5、 drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties. The relevant Minister a
6、nd the Japanese Industrial Standards Committee are not responsible for identifying the patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have the said technical properties. The fi
7、gures and tables marked with t in this Standard were quoted from the ASME Boiler and Pressure Vessel Code O 2001 by the American Society of Mechanical Engineers with the written consent of the ASME Codes i 7 B 8277 : 2003 a) U-shape bellows b) Cl-shape bellows Figure 7 Shapes of corrugation of bello
8、ws PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 08:50:15 MDTNo reproduction or networking permitted without license from IHS -,-,- 8 B 8277 : 2003 1.0 4 1.2 2 . z
9、a 1.4 1.6 2. o 2 . 5 3.0 3 . 5 4 . O Figure 8 C, value of bellows? PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 08:50:15 MDTNo reproduction or networking permitted
10、 without license from IHS -,-,- 9 B 8277 : 2003 Figure 9 C, value of bellows? PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 08:50:15 MDTNo reproduction or networkin
11、g permitted without license from IHS -,-,- 10 B 8277 : 2003 Figure 10 C d value of bellows? b) Film stress in the peripheral direction 01 generated by inner pressure on the collar shall be calculated by the following formula: (3) (N/mm2) . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12、. . . . . . . . . . . . Pd = H (L) (N/mm2) (19) 2A, R i + 1 where, see 4.4.1 c ) for H, and 4.4.2 c) for A, and Ri. Film stress 0 2 generated by inner pressure on the ring stopper shall be calcu- lated by the following formula: e) . (N/mm2) (20) When the ring stopper is welded, calculate 02” setting
13、 R 2 =Ri. Sectional area of the reinforcing ring in this case shall be decided considering the welding strength of the ring stopper see figure 2 b). Af : minimum sectional area at the root of bolt thread (mm2) (see figure 6) see 4.4.1 c) for H, and 4.4.2 c) for 2-22 =Ri. where, f) Film stress in the
14、 meridional direction 0 3 generated by expansion on the bel- lows shall be calculated by the following formula: (N/mm2) (21) P(w - Kq) 0 3 = 2ntp where, K=0.3 - (22) see 4.3 for P, 4.4.1 a) for n, and 4.4.1 c) for LO, q and t,. Bending stress in the meridional direction o4 generated by inner pressur
15、e on the bellows shall be calculated by the following formula: g) 2 . Cp (N/mm2) (23) P w-Kq -=?ni t, ) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 08:50:15 MDTNo
16、 reproduction or networking permitted without license from IHS -,-,- 15 B 8277 : 2003 where, see 4.3 for P, 4.4.1 a) for n, 4.4.1 c) for w, q and tp, 4.4.1 e) for C , , and 4.4.2 f) for K. Film stress in the meridional direction 0 5 generated by expansion on the bel- lows shall be calculated by the
17、following formula: h) (N/mm2) (24) E b t,”e 0 5 = 2(w - Kq)3C, where, see 4.3 for e, 4.4.1 c) for w , q and tp, 4.4.1 f) for Eb and Cr, and 4.4.2 f) for K. i) Bending stress in the meridional direction 0 6 generated by expansion on the bellows shall be calculated by the following formula: (N/mm2) (2
18、5) 5Eb tpe 0 6 = 3(w - KQ)ZCd where, see 4.3 for e, 4.4.1 c) for w, q and tp, 4.4.1 f) for Eh, 4.4.1 g) for Cd, and 4.4.2 f) for K. j) Spring constant in the axial direction f per one convolution of bellows shall be calculated by the following formula: (N/mm) (26) d, E& f = 1.7 ( 2 0 - KqI3C, where,
19、 see 4.4.1 a) for n, 4.4.1 b) for Eb, 4.4.1 c) for d, tp, q and w, 4.4.1 f) for Cy, and 4.4.2 f) for K. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 08:50:15 MDTNo
20、 reproduction or networking permitted without license from IHS -,-,- 16 B 8277 : 2003 A -I A -A Figure 12 Explanation of calculated stress of expansion joint with reinforcing ring 4.4.3 Stress evaluation method shall be as follows: Limitation of stress acquired by 4.4.1 or 4.4.2 Film stress Limitati
21、on of film stress shall be as follows: I 01 I 2 Dac? I 0 2 I I o a r , I 02” I 5 oaf Where, aab, oat, o , , and oaf are allowable tensile stress at the material design temperature of the bellows, collar, reinforcing ring and the ring stopper, respec- tively, and the values shall be as shown in attac
22、hed table 2.1.1 or attached table 2.2 of JIS B 8265. Complex stress Limitation of complex stress shall be as follows: I o3 + o4 I 5 1.50ab for expansion joint without reinforcing ring I o3 + o4 I 5 3oab for expansion joint with reinforcing ring Peak stress Limitation of peak stress shall be as follo
23、ws: where, Kg : coefficient of stress concentration for the bellows. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 08:50:15 MDTNo reproduction or networking permitt
24、ed without license from IHS -,-,- 17 B 8277 : 2003 When formed from a seamless tube, or when the reinforcement of weld of inner and outer surface is flat and smooth finished When the reinforcement of weld is smooth finished Kg = 2.0 For other than the above mentioned Kg = 4.0 However, weld joint of
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- JIS 8277 2003 ENG
链接地址:https://www.31doc.com/p-3782198.html