Dissertation > Excellent graduate degree dissertation topics show

Experimental study on low temperature properties of the material sealing valve

Author: ZhangWenBo
Tutor: DuJian
School: Southwest Petroleum University
Course: Precision instruments and machinery
Keywords: Low temperature Environment Simulation Valve Sealing material Lowtemperature test
CLC: TB42
Type: Master's thesis
Year: 2012
Downloads: 144
Quote: 0
Read: Download Dissertation

Abstract


In the environment of low temperature, valve sealing material will cause a series of problem like strength degradation and material become crisp, then set off a chain reaction like the sealing degree is reduced and the anti-impact load capacity reduction. So lead the fluid to leakage, and bring the hidden trouble with the safe of the valve application at the alpine region. In order to solve this problem, this text design and develop a sealing material of valve test system of the low temperature characteristic which according to the national standard on the basis of extensive investigation. This test system can do the experiments of low temperature characteristics with sealing sample of rubber.At first, this text has developed an lab simulation equipment of the low temperature environment. The equipment could compound refrigerating fluid which can achieve the designate temperature within the certain range, then provide the cold source for the designate temperature environment simulate. The second, have designed and developed the stretch and compress ability test equipment of sealing ring sample which based on the GBT5720-2008O style rubber sealing ring test method. At last, have studied the three kinds of common valve sealing material sample’s tensile strength, elongation at break and compression ratio. The analysis of experimental data shows that silicon rubber’s sealing property is the best in the three sealing material at the temperature between-50～0℃.Through the use of test device indicate that the valve sealing material low temperature characteristic test system can provide the tensile strength, elongation at break and the compression rate of permanent deformation test for the sealing material sample, and validate that the correctness and rationality of the system, and supply the technology foundation for sealing ring of the valve on low temperature properties. At the same time, provide the stong basis for the sealing material ring of valve’s design, develop and product.

Related Dissertations

  1. Model of Cylinder Controlled by On-Off Valve and System of PWM Control,TH138
  2. Study on the Control System for Automatic Aiming of HWIL Pitching Mechanism,TJ303
  3. Steering Mechanism and Hydraulic System for the Electronic Control Hydraulic Power Steering System of Tractor,S219.02
  4. Tissue-engineered Construction and Preliminary Implantation Study of Diamond-like Carbon Films for Artificial Mechanical Valve Applications,R654.2
  5. Electro-Hydraulic Proportional Control System Research of Bulldozers Working Device Fluctuation,TU623.5
  6. Research on Solenoid Valve Test System for Water Medium,TH134
  7. Study on Virtual Simulation Technology of Safety Valves Based on SolidWorks,TH134
  8. Improvement of Hydraulic Reciprocating Exploiting Viscous Crude Oil Device,TE345
  9. The Analysis of Motor Speed Control System and Control Strategy Study,TH137
  10. The Application Research on Acoustic Emission Technique for Fault Detection of Valve Leakage,TM621.6
  11. Research of Mass Transfer Characteristics for the Cross-Type Valve Trays,TQ053.5
  12. Pneumatic Muscle Actuators humanoid design and control of the elbow,TP242
  13. Control Loops and Strategy Design of Acetic Acid Reactor and Simulation,TP273
  14. Thermal Cycle Stability of SOFC Seal Material,TM911.4
  15. Research of the Seawater Hydraulic Swash-plate Axial Piston Pump Based on Seawater Lubrication,TH322
  16. Industrial valves electro-hydraulic position servo drive system and its application,TH137
  17. Research for the Characteristics of Slewing Control Valve on Truck Crane,TH137
  18. Dynamic Simulink Inside Dual-nozzle-flapper Electro-hydraulic Servo Valve with Matlab,TH137.52
  19. Effects of Remote Ischemic Preconditioning and Remote Ischemic Postconditioning on Myocardial Injury in Adults Undergoing Valve Replacement Surgery,R654.2
  20. Study of Effects of Valve TrainOptimization for Engine Performance,TK403
  21. Of energy - saving heat damper valve plate of the micro- water temperature and thermal stress field finite element analysis,TK175

CLC: > Industrial Technology > General industrial technology > Industrial common technology and equipment > Sealing technology
© 2012 www.DissertationTopic.Net  Mobile