Design and Stress Analysis of a New Quick-Opening Seal Device Connected by D-Shaped Shearing Bolts

[+] Author and Article Information
Ping Chen, Yunxiao Zhang

 Beijing University of Chemical Technology, Beijing 100029, China

Caifu Qian1

 Beijing University of Chemical Technology, Beijing 100029, Chinaqiancf@mail.buct.edu.cn


Corresponding author.

J. Pressure Vessel Technol 129(3), 550-555 (Jul 04, 2006) (6 pages) doi:10.1115/1.2757188 History: Received March 29, 2004; Revised July 04, 2006

Because of large scale and heavy weight, end closures of high pressure vessels are usually hard to assemble and disassemble. In this paper, a new quick-opening seal device connected by D-shaped shearing bolts is introduced. This device is compact in structure, reliable in sealing, easy in assembly and disassembly, and very appropriate for end closures of pressure vessels or for pipe joints. Strength calculation formulas for the major parts are proposed analytically, and stress analysis using the finite element method for a C-ring seal has been performed. An application of this device shows that its sealing and strength is reliable.

Copyright © 2007 by American Society of Mechanical Engineers
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Figure 1

D-shaped shearing bolt and its joint: 1. D-shaped shearing bolts, 2, joint component A, and 3. joint component B

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Figure 2

A quick-opening sealing device for a pressure piping system connected by D-shaped shearing bolts: 1. D-shaped shearing bolts, 2. bolt sleeve, 3. transition section, 4. screwed flange, 5. stabilization section (pipe end), 6. C-ring gasket, and 7. pipe flange

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Figure 3

Mechanical model of D-shaped shearing bolt

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Figure 4

Mechanical model of transition section

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Figure 5

Mechanical model of stabilization section

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Figure 6

Mechanical model of screwed flange



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