China Three Gorges Corporation

China Three Gorges Renewables (group) Co., Ltd.

Nanjing Haohui Hi Tech Co., Ltd.

Boe Technology Group Co., Ltd.

Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Beijing Boe Technology Development Co., Ltd.

Chinese Academy of Agricultural Engineering

Chinese Academy of Agicultural Engineering

Xin Xiang

JianPing Wu

Jianping Liu

Jianhua Wu

Hong Wu

Jingxin Zhao

Yawei Zhu

Wenwei Li

Zhiyu Sun

Zhiguang Guo

Benxiang Hou

Yajing Li

Zhengfeng Shuai

Fangliang Zhao

Fan Yang

Junrui Zhang

Ronghua Lan

Jie Han

Xuehui Zhu

Tong Chen

Bo Pang

Xizhu Peng

He Tang

Jinquan Zhao

Yunjie Wang

Liang Fang

Xilei Yin

Hongwei Min

Yuhua Zhang

Xiaoqiao Liu

The disclosure discloses a numerical simulation method of an influence of a polytetrafluoroethylene (PTFE)-based membrane on an aerodynamic characteristic of a wind turbine blade, and relates to the technical field of polymer composites. The simulation method comprises the following steps: selecting a wind turbine generator, a blade airfoil and a PTFE-based nano functional membrane; setting a numerical simulation computation network and a computation area of a wind energy capture area; determining main computation parameters and a Reynolds number for aerodynamic characteristic computation; establishing a geometrical model whose airfoil boundary extends by 0.26 mm (membrane thickness) along a normal direction to obtain a new computational geometry; computing by using a hydrodynamic computation method and a finite volume method; and obtaining an influence number simulation computation result.

Numerical simulation method of influence of PTFE-based membrane on aerodynamic characteristic of wind turbine blade

A preparation method of a polytetrafluoroethylene (PTFE)-based membrane for preventing and removing ices covering wind turbine blades is provided and the method comprises: preparing a membrane into a PTFE rod material with polymerized monomers by using monomer polymerization methods such as blending, pre-compressing and pushing; making the membrane into a PTFE-based homogeneous membrane with micropores and nano and micron scale concave-convex geometrical ultra-structure morphologies under the condition that the membrane is cracked to generate a laminar exfoliated fabric-like structure in the hot calendaring process of the PTFE rod material by using a hot calendaring and fusion polymerization method; and applying the PTFE-based homogeneous membrane to blades of a large wind turbine in operation.

Preparation method of PTFE-based membrane for preventing and removing ices covering wind turbine blades and use thereof

A preparation method of a polytetrafluoroethylene (PTFE)-based nano functional composite membrane and use is provided. The PTFE-based nano functional composite membrane can be applied to prevention and resistance of icing of various types of wind turbine generator blades in winter and salt spray corrosion resistance of wind turbine blades, in the meantime, can improve the aerodynamic performance of wind turbine blade airfoils and enhance the whole surface strength of the blade and protect the blade from undergoing aging erosion, and is a new-generation multi-functional brand-new composite membrane material which can be directly explored and applied to the industrial fields of preventing adhesion and corrosion of marine fouling organisms on steel pipe piles of offshore wind power and offshore platforms, avoiding snowing and icing of high-voltage transmission towers and cables, protecting snowing and icing of bridges (stay cables and suspension cables) and the like.

Preparation method of PTFE-based nano functional composite membrane and use

A high-temperature high-linear-pressure micro-eutectic method for enhancing a strength of a polytetrafluoroethylene (PTFE)-based membrane is disclosed. The method comprises the following steps: pushing a PTFE-based nano functional composite membrane forwards at a speed of 6-8 m/min in a high-temperature high-linear-pressure micro-eutectic cavity with a length of 1.5 m at a temperature of 380° C., controlling a linear pressure of a surface of the PTFE-based membrane to be 50-80 N/m, and under a coiling traction of a membrane coiling roller outside the cavity, enabling membrane molecular chains to shrink and generate eutectic phases, wherein multiple micro-eutectic molecular structures are arranged in parallel, and the PTFE-based nano functional composite membrane has a density of 2.1 kg/mand has nanoscale macromolecular aggregates and a nano-scale and micron-scale concave-convex geometrical ultra-micro-structure morphology with a surface average size of 10-20 μm, a height of 5-10 μm and a spacing of 10-20 km.

High-temperature high-linear-pressure micro-eutectic method for enhancing strength of polytetrafluoroethylene (PTFE)-based membrane

A method for nano-depth surface activation of a PTFE-based membrane and relates to the technical field of polymer composites is disclosed. The method comprises the following steps: covering a functional surface of a PTFE-based nano functional composite membrane, performing surface activation treatment on a single surface of the membrane to which a bonding adhesive is applied, and migrating and complexing a high-toughness cold bonding adhesive tape on the membrane surface, with an activated structure layer, of the PTFE-based nano functional composite membrane through a mechanical adhesive applying device to form an adhesive-membrane complex. An extremely strong affinity and a high-strength bonding performance are generated between the membrane and the adhesive, and the adhesive-membrane complex is formed. Integration of membrane/adhesive bonding complexing, membrane/membrane bonding complexing and membrane/adhesive layer bonding is realized.

Method for nano-depth surface activation of PTFE-based membrane

An output control circuit, a method for transmitting data, and an electronic device are disclosed. The output control circuit includes: a serial-to-parallel conversion circuit configured to obtain at least one group of parallel data through a serial-to-parallel conversion; an intermediate-stage cache circuit configured to divide the at least one group of parallel data into at least two categories of subgroup parallel data according to sequence of serial-to-parallel conversion; a latch output circuit including a plurality of latch arrays each of which receiving any category of subgroup parallel data and latching and outputting any subgroup parallel data in any category of subgroup parallel data; and a selection control circuit configured to, within an effective pulse duration of the any subgroup parallel data, control a latch array for the any subgroup parallel data in the plurality of latch arrays to latch and output the any subgroup parallel data.

Output control circuit, method for transmitting data and electronic device

A temperature monitoring system for a substrate heating furnace includes a temperature monitor, and the temperature monitor is located on a prong of a mechanical arm which is configured to fetch and place a substrate. The temperature monitor is configured to monitor the temperature of the substrate which has been heated by the substrate heating furnace and is located on the prong.

Temperature monitoring system and method for a substrate heating furnace

A mask includes a base substrate, control switches provided on the base substrate, and electrochromic film components provided on the base substrate. The control switches and the electrochromic film components are connected in one-to-one correspondence. The control switches are configured to, according to at least one light shielding region and a light transmitting region of the mask, control light transmittances of the electrochromic film components in one-to-one correspondence.

Mask and manufacturing method thereof, and light shielding device and control method thereof

The present invention relates to a method for dry fermentation and equipment for carrying out the same. The invention equipment comprises a fermentation tank for dry fermentation which includes a tank bodyfor accommodating materials, a flexible sealing membranefor covering said tank body, and a tight fixing meansfor hermetically covering the tank bodywith the flexible sealing membrane. This invention is characterized in that said tank bodyis provided with a top openingat its top part and at least one side openingfor loading and unloading materials at its side portions. When the tank bodyis covered hermetically by the flexible sealing membrane, said tight fixing meansmakes the contact areabetween the tank bodyand the flexible sealing membraneform at least one sealing contacting strip or at least one sealing line which is continuous and close in three-dimensional space so that the flexible sealing membranecovers hermetically both the top openingand at least one side openingfor loading and unloading materials.

Method for dry fermentation and equipment for carrying out the same

Growing community of inventors

Beijing, China

Xin Xiang