Power New Bolting Technology


Published on

The latest and newest technology in bolting only offered by Titan.
Contact pcort@titanti.com for appointment.

  • Be the first to comment

  • Be the first to like this

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Power New Bolting Technology

  1. 1. Titan ® Superior Bolting Solutions®
  2. 2. Profile Profile Titan Technologies is based in Houston Texas. Titan is the fastest growing company in the bolting products industry with offices worldwide. Titan Products and Services are provided Worldwide into the Power Generation including Wind and Heavy Industry sectors such as Defense, Marine, Mining, Offshore, Paper, Petrochem, Power, Quarrying, Refining, Steel and Sugar. Our client list includes; ABB, AES, Alcoa, Alstom, ANI, Bellelli, BP, BHP Steel, Boral, CME, CSR, Dresser, EDF, FP&L Energy, Exxon-Mobile, Flour Daniels, Furmanite, Jaques, Macquarie Generation, MIM, Mitsubishi, Pacific Power, QCL, QNI, Saipem, Svedala, TEAM, Thiess, Toshiba, Upwind, etc……. Titan ® Superior Bolting Solutions®
  3. 3. Worldwide Worldwide Agency Network Titan Offices Local Sales & Service
  4. 4. <ul><li>Differential expansion leads to </li></ul><ul><li>thread galling </li></ul><ul><li>Long heating times </li></ul><ul><li>Heat transfer into casing </li></ul><ul><li>Long cooling periods - bolts & casings </li></ul><ul><li>Bolt / element damage </li></ul><ul><li>Safety </li></ul>Average time per casing: 24-36 hrs <ul><li>No torsional stresses </li></ul><ul><li>Angle of rotation can be accurate </li></ul><ul><li>(for casings with no distortion) </li></ul>The Old Method
  5. 5. No torsional stresses Accurate Fast Repeatable Safe Average time per casing: 3-5 hrs The New Method
  6. 6. Hi Temp Hydraulic Nut
  7. 7. <ul><li>The Titan High Temperature Hydraulic Nut is a precision engineered, high pressure, high performance, hydraulically operated axial bolt tensioning device </li></ul><ul><li>The Titan High Temperature Hydraulic Nut is suitable where; </li></ul><ul><ul><li>accurate and reliable loading is required on bolting </li></ul></ul><ul><ul><li>vibration or torsional stresses are a problem </li></ul></ul><ul><ul><li>regular maintenance requires repeated adjustment or removal of nuts </li></ul></ul><ul><ul><li>confined or difficult access, where manual operation can lead to safety problems </li></ul></ul>Hi-Temp Hydraulic Nut
  8. 8. Spherical Washer designed to self-correct seating & bolting mis-alignment Piston with external buttressed screw-thread for Locking Ring Locking Ring, to retain Load Nut body, which screws onto the Bolt using purpose designed screw-thread Nut body incorporates high-pressure threaded connections for power oil High Pressure seals contained within Nut body HiTemp Hydraulic Nut
  9. 9. High Pressure power oil Inlet connection High Pressure power oil inlet connection floods the sealed chamber High Pressure power oil Outlet is sealed oil in HiTemp Hydraulic Nut
  10. 10. High Pressure power oil FORCES Piston and Nut Body apart HiTemp Hydraulic Nut
  11. 11. High Pressure power oil The bolt is stretched accurately so applying the required tension, and providing the desired compressive force. FORCES Piston and Nut Body apart Hi Temp Hydraulic Nut
  12. 12. High Pressure power oil Hi Temp Hydraulic Nut FORCES Piston and Nut Body apart
  13. 13. Hi Temp Hydraulic Nut
  14. 14. Threaded Locking Ring, mounted on Piston, is screwed hand-tight up to the Nut-body, to retain the induced load tension in the bolt. oil pressure released Pressure is released, and oil can be extracted for high temperature applications. Hi Temp Hydraulic Nut
  15. 15. Hi Temp Hydraulic Nut
  16. 16. Full Load is applied to Locking Ring Hi Temp Hydraulic Nut
  17. 17. When oil is removed, tightening operation is completed by removing High Pressure system, and glands from Nut-body. Hi Temp Hydraulic Nut
  18. 18. When oil is removed, tightening operation is completed by removing High Pressure system, and glands from Nut-body. Hi Temp Hydraulic Nut
  19. 19. The Hydraulic Nut is removed, by the reverse process, which unloads the Locking Ring, allowing easy removal of the Nut-body assembly No major physical force, large wrenches or torque tools are required to correctly fit and remove the Hydraulic N UT Hi Temp Hydraulic Nut
  20. 20. Hi Temp Hydraulic Nut
  21. 21. 32 x 1 ¾” HiTemp Hydradraulic Nuts – tensioned in less then 2 hours!! Hi Temp Hydraulic Nut
  22. 22. <ul><li>Titan  products also manufactured in ; </li></ul><ul><ul><li>Hydraulic B olt & H ydraulic W asher configurations </li></ul></ul><ul><ul><li>These incorporate the same precise tensioning features, and user benefits as do the well-proven H ydraulic N ut </li></ul></ul><ul><ul><li>Components can be supplied in a wide range of sizes and materials, as well as incorporating protective covers for service in abrasive or corrosive conditions </li></ul></ul>HydraBolt HydraWasher HiTemp Hydraulic Nut
  23. 23. The size and pitch separation of the Bolts and Studbolts used in securing Turbine casings does not permit the use of regular tooling. Bolting is generally carried out by thermal elongation of the stud & measuring to check elongation. Restrictive Area High Load Requirement Minimal Stud Protrusion Height restrictions in some positions Challenges Hi Temp Hydraulic Nut
  24. 24. <ul><li>Standard turbine bolting </li></ul><ul><li>Note closeness of bolting </li></ul><ul><li>Note amount of bolt stand out from spot face </li></ul>Challenges Challenges CASING Spot Face
  25. 25. <ul><li>Attempted solution is to reduce nut diameter thus making room for </li></ul><ul><li>the tensioner reaction bridge within the spot face area </li></ul>This creates a problem: The nut to casing contact area is greatly reduced, thus increasing contact stresses to unacceptable levels Attempted Solutions Attempted Solutions CASING Spot Face Slimline Bridge Reduced Nut
  26. 26. To overcome this problem a thick washer is used; thus maintaining the casing contact stress area This however means bolt has to be made longer!! Attempted Solutions CASING Spot Face Thick Washer Slimline Bridge Reduced Nut
  27. 27. The bolt has also to be made longer to accommodate the tensioner IT IS OBVIOUS THIS SYSTEM REQUIRES A CHANGE OF BOLTING, OFTEN A COST PROHIBITVE SOLUTION Attempted Solutions Attempted Solutions CASING Spot Face Thick Washer Slimline Bridge Reduced Nut
  28. 28. <ul><li>Standard turbine bolting </li></ul><ul><li>Another long standing problem on traditional </li></ul><ul><li>bolting is the high stress concentration in the </li></ul><ul><li>first thread fillet. Most bolts suffer stress cracking </li></ul><ul><li>fatigue in this area and is where they rupture </li></ul>More Problems! The challenges FEA BOLT NUT CASING Spot Face
  29. 29. Tapered threads on the Bolt as adopted by Westinghouse, MHI, etc.... Tapered threads on the nut as adopted by GE, Toshiba. etc.... These are the attempted solutions for better distribution of stress in the threads Attempted Solutions SOLUTIONS WHICH HAVE BEEN PROVEN COMPLETELY INEFECTIVE Attempted Solutions CASING Spot Face
  30. 30. Slide on outer cone of nut Screw on inner cone nut Slide on tensioner bridge Machine taper thread in bolt Screw on one piece tensioner No Stud Replacement Nut to casing contact stress area is maintained as per the original nut The Solution!! The Solution CASING Spot Face
  31. 31. The Critical Interface Note the smooth & even distribution of load from the high strength puller to the studbolt No part of the studbolt is overstressed Puller stud loads do not exceed allowable maximum F.E.A. The Solution
  33. 33. The Solution!! Load is transferred from each thread, through the cone interface, down to the nut to casing contact area
  34. 34. Longer Bolt Life No Thread Distortion Dramatically less creep induced failure Disassembles easily Outer Cone provides stable platform for HydraJac Tensioner Gives evenly distributed compressive load across the spotface SUPERIOR CONE NUT CHARACTERISTICS Benefits
  35. 35. OIL in Apply Oil Pressure Note both oil chambers now under pressure Also note bolt is now stretched And outer part of nut is clear from inner part The Titan Solution! CASING Spot Face
  36. 36. OIL in Tighten inner part of nut until it is snug with the outer cone The Titan Solution!! CASING Spot Face
  37. 37. Release oil pressure The Titan Solution!! CASING Spot Face
  38. 38. And unscrew the tensioner from the bolt The Titan Solution! CASING Spot Face
  39. 39. Screw in protection plug The Titan Solution! CASING Spot Face
  40. 40. Testing
  41. 41. Solutions
  42. 42. Multiple Cell Tensioner High Force Output Standard Stud Protrusion High Temperature Nut Superior Bolting Solutions:
  43. 43. Solutions Superior Bolting Solutions:
  44. 44. Hi Temp Hydraulic Nut
  45. 45. High Temperature Nuts / Tensioners: IP Inner Valve Cover IP Outer Applications
  46. 46. Where Else? Turbine Casings, Loop Pipes, Valves, Boiler Feed Pumps, High Pressure Feed heaters, Boiler Circulation Pumps, Inner Casings, Outer Casing, Inlets, Crossovers, Outlets Steam Chests……. All critical Bolting Applications
  47. 47. Superior Bolting Solutions® Thank You Any Questions?