Blade of horizontal axis WTGS and forming method and equipment thereof

A technology for wind turbines and wind turbines, which is applied to wind turbines, wind turbines in the same direction as the wind, and wind power generation, etc., can solve problems such as poor compression stability, airfoil aerodynamic performance at the expense of aerodynamic efficiency, etc.

Inactive Publication Date: 2012-10-03
张向增
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Because the blade has a sufficiently large aerodynamic profile section, the solid part of the aerodynamic airfoil has good longitudinal compressive stability, and the load-bearing structure outside the aerodynamic airfoil

Method used

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  • Blade of horizontal axis WTGS and forming method and equipment thereof
  • Blade of horizontal axis WTGS and forming method and equipment thereof
  • Blade of horizontal axis WTGS and forming method and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0032] Figure 5 It is an equipment system for pultrusion forming such constant airfoil section blade segments.

[0033] figure 2 In, 101-airfoil shell outer skin, 102-airfoil shell inner skin, 103-airfoil shell core structure

[0034] image 3 In, 101-airfoil shell outer skin, 102-airfoil shell inner skin, 104-airfoil shell "I" core structure

[0035] Figure 4 Middle, 101-airfoil shell outer skin, 102-airfoil shell inner skin, 105-airfoil shell "back" core structure

[0036] Figure 5 Among them, 501-upper pultrusion equipment group, 502-lower pultrusion equipment, 503-post-processing equipment, 511-cavity external mold, 512-cavity internal mold, 513-cantilever support, 51-fiber yarn, 52-resin Groove, 53-fiber cloth, 54-core profile, 55-cavity, 56-heating and curing device, 57-traction mechanism, 58-synchronous roughening device, 59-synchronous spraying device, 60-cutting device, 104-wing Type shell "I" type core structure, 1-aerodynamic airfoil.

[0037] According ...

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Abstract

The invention discloses a composite blade of a horizontal axis WTGS (wind turbine generator system). A pneumatic functional part and a bearing structure part of the blade are separated from each other according to the design, particularly, external longitudinal beams are distributed on a front side surface and a rear side surface of the section surface of a pneumatic wing section and keep enough pneumatic clearance distances from the pneumatic wing section, and a section of truss structure is introduced at a blade stalk part of the blade, therefore, on the premise of guaranteeing the pneumatic power, the blade manufacture cost and transportation cost can be greatly lowered in comparison with the prior art. A horizontal axis fan formed on the basis of the pultrusion technology enhances the resin composite blade through using uniform-section fibers, a casing of the blade is divided into a stressed-skin construction layer and a core material construction layer which bear blade horizontal and longitudinal loads respectively, the core material part is made of preformed continuous-pultrusion sectional material, and the stressed-skin part is finished in the second pultrusion process. The method for manufacturing the full fiber composite blade by adopting the second pultrusion technology gives full play to the blade structure, material performance and technology advantages reasonably.

Description

Technical field: [0001] The invention relates to a composite material blade of a horizontal axis wind power generating set. The aerodynamic function part and the bearing structure part of the blade are designed separately from each other. There is sufficient aerodynamic clearance distance between the aerodynamic airfoil and the external beam, and at the same time, a truss structure is introduced into the petiole part of the blade. In this way, under the premise of ensuring aerodynamic power, the bending stiffness of the blade is greatly improved. Compared with the existing blade technology The total cost of the blade can be greatly reduced. At the same time, the present invention proposes a method and pultrusion equipment for secondary pultrusion molding of the fiber reinforced resin composite material blade. [0002] The invention belongs to the technical field of composite blades of horizontal axis wind power generators. Background technique: [0003] Composite material ...

Claims

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Application Information

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IPC IPC(8): F03D1/06B29C70/52
CPCY02E10/721Y02E10/72Y02P70/50
Inventor 张向增
Owner 张向增
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