Steel structure for offshore and onshore wind power generator

The wind power tower is the supporting piece of the wind power generation system, which is used to support the wind generator and resist the vibration of wind generator.

Manufacturing wind turbines, especiallly the supporting tower, uses a substantial amount of welding equipment. Welding procedures and consumables can vary based on tower requirements for height, design, and location.

Towers, typically made from carbon steel, consist of three or four fabricated sections each three to five meters in diameter and up to 40 m long. The sections are fabricated out of smaller, individually rolled cylindrical pieces – called cans – which are then welded together with multi-pass butt welds made by submerged arc welding. Smaller can sections are welded on a large assembly line, called a growing line. After assembling the sections, they are transported to the installation site, lifted into place, and bolted together.

Welding requirements for offshore tower construction are impacted by the tower’s large size and associated nacelles, as well as the thicker steel required for strength and fatigue resistance. Joining thicker steel sections with larger weld joints requires using a greater volume of welding consumables, thus requiring additional welding passes. This adds time and cost to the job.

 

 

Feature

product	wind power tower
painting	HEMPEL
color	yellow
material	high quiality steel
application	offshore and onshore
welding test	NDT
steel working	welding and inspected
process	rolled

 

Manufacturing process 

 

1, material cutting

 

2. steel plate rolling and welding

 

3. welding

 

4. NDT test

 

5. paint inspection

 

6. testing and inspection instrument

 

7. wind turbine tower transfer and shipment