O‐Ring Seal for High Pressure Tensile Tester

1969 ◽  
Vol 40 (7) ◽  
pp. 966-966
Author(s):  
D. R. McCann ◽  
P. F. Hettwer ◽  
J. C. Uy
Keyword(s):  
High Pressure ◽  
Tensile Tester ◽  
Ring Seal

Numerical Simulation Analysis of Centrifugal Pump Floating Ring Seal

2011 ◽  
Vol 317-319 ◽  
pp. 2148-2151
Author(s):  
Jian Yong Han ◽  
Guo Jing Chen
Keyword(s):  
Numerical Simulation ◽  
High Pressure ◽  
Centrifugal Pump ◽  
Simulation Analysis ◽  
Maximum Pressure ◽  
Force Analysis ◽  
Sealing Ring ◽  
Fluent Software ◽  
Ring Seal ◽  
Liquid Flows

According to the studying on the force analysis of floating ring of centrifugal pump, the paper think that floating ring stress will change with the change of centrifugal pump’ s condition. Using fluent software, the floating ring seal was simulated and analyzed. Results show that the liquid force acted on the floating ring is nonuniform and asymmetrical as wedging effect, and that section maximum pressure is not lies in the smallest clearance place, but in the wedge area where liquid flows to the minimum clearance, because the effect of Leak resistance is better in high pressure than low pressure. The leakage decreases and liquid resistance increases with the increases of RPM. The leakage increases with the increases of differential pressure in sealing ring sides and eccentricity. Pressure distribution within the seal clearance is not uniform with the increases of eccentricity.

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

2006 ◽  
Vol 129 (3) ◽  
pp. 550-555
Author(s):  
Ping Chen ◽  
Caifu Qian ◽  
Yunxiao Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
High Pressure ◽  
Stress Analysis ◽  
Large Scale ◽  
Pressure Vessels ◽  
The Finite Element Method ◽  
Heavy Weight ◽  
Ring Seal ◽  
Pipe Joints

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.

High Pressure Nylon Piston with Rubber O‐Ring Seal

1962 ◽  
Vol 33 (11) ◽  
pp. 1277-1277 ◽  
Author(s):  
Sture Malmrud ◽  
Gösta Andersson
Keyword(s):  
High Pressure ◽  
Ring Seal

Research and Design of Sealing Device in Hot Water Circulating Pump for High Temperature and High Pressure

2008 ◽  
Author(s):  
Jiegang Mu ◽  
Shuihua Zheng ◽  
Hongying Deng ◽  
Shengchang Zhang ◽  
Zhendong Cai
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Cooling System ◽  
Hot Water ◽  
Double Decker ◽  
Wide Range ◽  
Ring Seal ◽  
Research And Design ◽  
Sealing Device

Hot water circulating pump for high temperature and high pressure is important equipment applied in the wide range of industry. However, in China, the seal of this pump is not so good and could not meet the use requirements. In this paper, based on investigations of the seal for this pump in China, the main problem of the seal was found out. Also, a new sealing device of hot water circulating pump for high temperature and high pressure was designed, which was composed of floating ring seal, combined seal, packing seal and special double-decker cooling system. The experiment results show that the new design could improve the seal performance of the pump and meet the use requirements.

The Application of Bridgman’s Seal and B-Ring Seal in the Process of Pump Head Auto-Frettage

2013 ◽  
Vol 318 ◽  
pp. 130-133
Author(s):  
Xiao Bing Xu ◽  
Liang Zhu
Keyword(s):  
High Pressure ◽  
Structure Design ◽  
Pump Head ◽  
Ring Seal

In this paper,it is described that the seal selected and structure design of plunger hole and liquid export seal in the pump head’s experiment of extra-high pressure and auto-frettage. Then,Bridgman’s seal and design account for gasket is chose. And liquid export seal used B-ring is chose and analyzed by FEM. The results provide a basis for the experiment about pump head’s extra-high pressure and auto-frettage.

Explosive Decompression Resistance of Centrifugal Compressor O-Ring Seals: A Comparative Test Summary and Procedure

1988 ◽  
Vol 110 (2) ◽  
pp. 289-294 ◽  
Author(s):  
W. N. Shade ◽  
D. W. Legg
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Centrifugal Compressor ◽  
Atmospheric Pressure ◽  
Comparative Test ◽  
Test Results ◽  
Test Rig ◽  
Centrifugal Compressors ◽  
Ring Seal ◽  
Sealing Elements

Explosive decompression is a phenomenon that can destroy O-ring sealing elements in high-pressure (>3.4 MPa) natural gas compressors during rapid venting to atmospheric pressure. A test rig and procedure have been developed to identify important parameters influencing O-ring seal explosive decompression failure, consistent with utilization of these seals in high-pressure centrifugal compressors. The test rig and procedure are described and comparative test results presented.

Numerical study on sealing characteristic of rubber X-ring exposed to high-pressure hydrogen by considering swelling effect

2019 ◽  
Vol 71 (1) ◽  
pp. 133-138 ◽  
Author(s):  
Chilou Zhou ◽  
Mohan He ◽  
Guohua Chen ◽  
Saihua Jiang
Keyword(s):  
High Pressure ◽  
Numerical Study ◽  
Mechanical Damage ◽  
Element Analysis ◽  
Content Type ◽  
User Subroutine ◽  
Sealing Performance ◽  
Ring Seal ◽  
Insight Into ◽  
Pressure Hydrogen

Purpose This paper aims to investigate the sealing characteristic of the rubber X-ring combined seal used in high-pressure hydrogen service and clarify the effect of swelling due to dissolved hydrogen on the sealing behavior. Design/methodology/approach A finite element analysis method with a user subroutine is proposed to investigate the sealing characteristic of rubber X-ring seals in conjunction with the swelling effect. Findings The swelling has a noticeable impact on the sealing behavior. The higher peak contact stress suggests that the X-ring seal may be superior to the O-ring seal, while the calculated increase in Mises stress suggests the X-ring exhibits a higher propensity to mechanical damage under low pressure conditions. Originality/value This paper describes a method with a user subroutine developed within ABAQUS to simulate the sealing performance coupled hydrogen swelling. The suitability of X-ring seals is evaluated. This work provides insight into the swelling effect on sealing behavior of an X-ring, which is of great value for the design and application of rubber seals used in hydrogen service.

Advanced Analysis of Multi-Ring Liquid Seals

1992 ◽  
Vol 114 (1) ◽  
pp. 42-46 ◽  
Author(s):  
S. W. Reedy ◽  
R. G. Kirk
Keyword(s):  
High Pressure ◽  
Equilibrium Position ◽  
Analysis Procedure ◽  
Analysis Program ◽  
Centrifugal Compressors ◽  
Curve Fit ◽  
Ring Seal ◽  
Computer Codes ◽  
Advanced Analysis

The equilibrium position of multi-ring seal assemblies is of major importance to the designer of high pressure centrifugal compressors. Typical computer codes now use a curve-fit of the Short Bearing Sommerfeld Number for eccentricity evaluation with the assumption that all rings in the assembly will always operate at the same eccentricity. The results from the recently developed seal analysis program, SEALS, have shown that the equal eccentricity assumption for multi-ring seals is questionable. This paper will review the analysis procedure used in SEALS, and present the results of an eccentricity evaluation comparison with a seal analysis program currently being used in industry.

Numerical Analysis on Delta-Ring Seal Structure of Ultra High Pressure Vessel Employed in Food Processing

2013 ◽  
Vol 303-306 ◽  
pp. 2839-2842
Author(s):  
Rong Li Li ◽  
Xiao Yong Liu ◽  
Shou Qin Zhang ◽  
Tao Li ◽  
Guo Jing Ren
Keyword(s):  
High Pressure ◽  
Numerical Analysis ◽  
Pressure Vessel ◽  
Food Processing ◽  
Residual Deformation ◽  
Full Field ◽  
High Pressure Vessel ◽  
Ultra High Pressure ◽  
Inner Pressure ◽  
Ring Seal

Due to the characters of the ultra high pressure vessel employed in food processing, a seal structure was introduced in this study. Then numerical analysis was performed using the larger finite element stress analysis software ansys12.0 for the stresses of the seal structure under internal pressure. In order to solve the contact question of delta-ring seal structure by using face-face contact model, a 3-D axisymmetric solid element was employed to calculate the stresses of the connected location among delta-ring, blind cover and end cylinder, the mises stresses in this structure were analyzed. Thus, the distribution nephograms of the stress on the contact surface were obtained in different conditions. Full-field plastic deformation of seal structure was generated when the inner pressure was larger than 300Mpa. At last, the reason for residual deformation was analyzed.

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