The invention relates to a blade structure of a wind driven generator, and a processing and forming method and application thereof. The blade consists of a blade root section, a main beam and skins wrapped outside the blade root section and the main beam, and the blade is fixed with the wind wheel through connectors arranged at the blade root section to form a space cantilever beam structure. One or more solid or hollow wedge-shaped columns are arranged between the top layer and the bottom layer in the main beam area and the blade root area, the innermost wedge-shaped column at the blade root end is solid, and connectors are embedded in it, wherein at least between the innermost adjacent wedge-shaped columns in the blade root area, fiber cloth is continuously inserted and wound in a ∽ shape to form an interlayer, and the interlayer of the top layer, the bottom layer and the fiber cloth is impregnated and cured to form a skeleton with a honeycomb cross section. The advantages are: the large blade can be injected with resin at one time, cured and molded at one time, and embedded in the root connector; The wedge-shaped column disperses the synergistic effect of curing exotherm and curing shrinkage of the bottom layer and the top layer, which makes it possible for unsaturated resin to be used as matrix material.
The blade structure of a wind turbine is composed of blade root section, main beam and skin covering the blade root section and the outside of the main beam, and the blade is fixed with a wind wheel through connectors arranged in the blade root section to form a spatial cantilever beam structure, which is characterized in that one or more solid or hollow wedge columns are arranged between the top and bottom layers of the main beam section and the blade root section, the innermost wedge column at the blade root end is solid, and the connectors are embedded in it, wherein at least between the innermost adjacent wedge columns of the blade root section, fiber cloth is continuous.
Axial composite continuous nano/micron fiber and preparation method thereof
The invention relates to a * * * axis composite continuous nano/micron fiber material and a preparation method thereof. Fiber is composed of core material and surface material, and its diameter is between several nanometers and several microns. Firstly, the core material and the fabric are dissolved or dissolved into liquid, which are respectively placed in the liquid tanks of the core material and the fabric, and the ends of the liquid tanks are all connected with fine spray pipes, and the inner spray pipe and the outer spray pipe are coaxial; Then, a high voltage DC electric field is applied to the core material liquid and the surface material liquid respectively to drive the two liquids to be ejected from their respective nozzles to form a concentric layered jet. Finally, under the action of electric field force, this jet is stretched, bent and deformed by vibration at high frequency, and solidified into superfine composite fiber, which is collected by grounded collection device. Under special circumstances, the obtained fibers are hollow continuous nano/micron tubes. Composite fiber has a wide range of uses.
Multi-nozzle electrostatic spinning of * * axial composite continuous nano-micron fibers
A multi-nozzle electrostatic spinning device for preparing composite continuous nano-micron fibers with * * axis is composed of an inner liquid tank, an outer liquid tank, a can, more than one coaxial nozzle, a liquid supply system, a conduit, a conductive rod, an electrostatic generator and other main components. Each nozzle has two hollow fine nozzles, an inner nozzle and an outer nozzle, the inner nozzle and the outer nozzle are coaxial, and the inner nozzle is arranged on the lower head of the inner liquid tank and is the injection port of the inner liquid; External nozzles are placed on the lower head of external liquid tank, which is the injection port of external liquid. Conductive rods in the inner and outer liquid tanks are connected with electrostatic generators, and high-voltage DC electric fields are applied to the inner and outer liquid materials respectively to drive the two liquids to be ejected from their respective nozzles, thus forming a plurality of concentric layered jets. The constant pressure liquid supply system will ensure that the sprayed jet is uniform and continuous, and then after high-frequency stretching, bending and vibration deformation curing, multiple continuous composite nano/micron fibers can be formed at the same time.