Research on reasonable winding angle of ribbons of Flat Steel Ribbon Wound Pressure Vessel

2006 ◽  
Vol 7 (3) ◽  
pp. 445-449 ◽  
Author(s):  
Chuan-xiang Zheng
2000 ◽  
Vol 122 (2) ◽  
pp. 186-191 ◽  
Author(s):  
Zheng Chuanxiang

Stress distribution of high pressure vessel wall is not even. How to appropriately distribute stresses on high pressure vessel wall is our goal. It can be realized in flat steel ribbon wound pressure vessel (FSRWPV). The paper shows that stress can be distributed in someway on FSRWPV wall by controlling prestress and winding angle of its flat steel ribbon. An example is given at the end. [S0094-9930(00)00902-1]


Author(s):  
J Y Zheng ◽  
P Xu ◽  
L Q Wang ◽  
G H Zhu

Flat steel ribbon wound pressure vessels have been adopted by the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 and Division 2. An excellent safety and service record has been built up in the past 34 years. Based on the interfacial friction model proposed by Zheng [1], a more accurate method for predicting the stresses in a flat steel ribbon wound pressure vessel is offered in this paper, taking account of the axial displacement, the change in the helical winding angle, the interfacial friction between ribbon layers and the effect of lamination. Comparison between experimental results of five test vessels with an inside diameter varying from 350 to 1000 mm, four different helical winding angles (18, 24, 27 and 30°), two width—thickness ratios of the ribbon (20 and 22.86) and results of calculation using the stress formulae available demonstrates that the method in this paper is more accurate and that interfacial friction gives a marked strengthening contribution to the axial strength of the vessel.


1993 ◽  
Vol 115 (2) ◽  
pp. 171-176 ◽  
Author(s):  
P. S. Huang ◽  
G. B. Zhu ◽  
R. Barron

The flat steel ribbon-wound vessel is a relatively new type of wound pressure vessel. This type of vessel consists of a thin-walled inner core and helically wound flat steel ribbons. The outstanding safety in service of this type of vessel is due, in part, to the large circumferential and axial prestresses introduced during the ribbon-winding process. This paper presents a model for determination of prestresses in such a vessel. The model considers the fabrication procedures producing the prestress in the vessel. Experimental results from tests using full-scale vessels are presented. Agreement between the theoretical model and the experimental results is excellent.


Author(s):  
Z P Chen ◽  
C L Yu ◽  
J Y Zheng ◽  
G H Zhu

In the past 40 years, more than 7000 layered vessels using flat ribbon-wound cylindrical shells have been manufactured in China. Theoretical as well as experimental investigations show that there are distinct economical and engineering advantages in using such vessels. In this paper, based on the analysis of the heat transfer process in a flat steel ribbon-wound liquid hydrogen high-pressure vessel, a heat transfer model of the walls of the shell and head has been set up. The temperature difference among the interfaces, the heat transfer through the shell and head, and the evaporation rate of the vessel under a steady heat-flow condition has been calculated. The numerical calculations show that such a structure meets the design requirements.


Author(s):  
Chen Ping

This paper describes the construction of a new type pressure vessel using thin shell cross-helically wound interlocking steel strip, based on the technologies of interlocking strip-wound developed by Germany and flat steel ribbon wound by China which are code cases listed in ASME BPVC. Analysis and comparison between the new and the traditional structure types, and discussion on issues such as their stress characteristics, operation safety and manufacturing methods etc. are presented. It shows this new method of pressure vessel construction is feasible, cost effective, and well deserved of further studies.


Author(s):  
Xin Ma ◽  
Zhongpei Ning ◽  
Honggang Chen ◽  
Jinyang Zheng

Ultra-High Pressure Vessel (UHPV) with self-protective Flat Steel Ribbons (FSR) wound and Tooth-Locked Quick-Actuating (TLQA) end closure is a new type of vessel developed in recent years. When the structural parameters of its TLQA and Buttress Thread (BT) end closure are determined using the ordinary engineering design method, Design by Analysis (DBA) shows that the requirement on fatigue life of this unique UHPV could hardly be satisfied. To solve the above problem, an integrated FE modeling method has been proposed in this paper. To investigate the fatigue life of TLQA and BT end closures of a full-scale unique UHPV, a three-dimensional (3-D) Finite Element (FE) solid model and a two-dimensional (2-D) FE axisymmetric model are built in FE software ANSYS, respectively., Nonlinear FE analysis and orthogonal testing are both conducted to obtain the optimum structure strength, in which the peak stress in the TLQA or BT end closure of the unique UHPV is taken as an optimal target. The important parameters, such as root structure of teeth, contact pressure between the pre-stressed collar and the cylinder end, the knuckle radius, the buttress thread profile and the local structure of the cylinder, are optimized. As a result, both the stress distribution at the root of teeth and the axial load carried by each thread are improved. Therefore, the load-carrying capacity of the end closure has been reinforced and the fatigue life of unique UHPV has been extended.


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