Design and Weave on Seamless Filter Bag with Three-Dimensional Angle-Interlock Tubular Structure

2011 ◽  
Vol 332-334 ◽  
pp. 621-624
Author(s):  
Xin E Li ◽  
Yi Ren
Keyword(s):  
Flue Gas ◽  
Production Efficiency ◽  
Three Dimensional ◽  
Tubular Structure ◽  
Woven Fabric ◽  
Positive Role ◽  
Filter Efficiency ◽  
Technical Parameters ◽  
Key Points ◽  
Interlock Structure

The advantages of the bag house are expounded in this paper. The some technical parameters of the filter bag are introduced. The weaving plan of three-dimensional angle-interlock tubular fabric is designed. The key points of weave production are explained. Use of angle-interlock tubular structure can weave seamless and thick the filter bag, and improve the filter efficiency of woven fabric. The development of seamless filter bag save sewing process, and improve the production efficiency, and save cost. The seamless filter bag with three-dimensional angle-interlock structure can be widely used to a lot of areas of flue gas filter. It will play a positive role to protect the environment.

Development and mechanical properties of three-dimensional flat-knitted fabrics with reinforcement yarns

2022 ◽  
pp. 152808372110460
Author(s):  
Jiangtao Tan ◽  
Gaoming Jiang ◽  
Zhe Gao ◽  
Pibo Ma ◽  
Peixiao Zheng
Keyword(s):  
Mechanical Properties ◽  
Three Dimensional ◽  
Basic Structure ◽  
Woven Fabric ◽  
Rapid Preparation ◽  
Knitted Fabrics ◽  
Interlock Structure ◽  
Ultra High Molecular Weight ◽  
Stretching Process ◽  
Better Than

Three-dimensional (3D) flat-knitted fabrics have become a topic of interest in the field of composites in recent years because of the growing need for rapid preparation of complicated shape preforms. In order to improve the mechanical properties of 3D flat-knitted fabrics, two types of 3D flat-knitted fabrics with reinforcement yarn (FKFR) were developed using ultra-high molecular weight polyethylene (UHMWPE) yarn. Their basic structures were composed of plain structure and interlock structure with tuck stitch, respectively, and the reinforcement yarn was integrated into the fabric as the weft inlay. The tensile, bending, drape, and bursting properties of the two fabrics were characterized. Results showed that the basic structure of the fabric has impacted on the mechanical properties of the fabric significantly. The tensile and bending properties of the fabric with interlock structure were better than that of the fabric with plain structure. During the transverse stretching process, the surface structure of the fabric with interlock structure was more stable. Moreover, transverse yarn strength utilization of the fabric with interlock structure was 1.05, which reached the level of ordinary woven fabric. In addition, the bursting force of the fabric with excellent tensile properties was lower than that of the fabric with a plain structure because the latter has better extensibility.

scholarly journals CFD Analysis of a Water Vaporization Process in a Three-Dimensional Spouted Bed for Flue Gas Desulfurization

ACS Omega ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 2759-2766
Author(s):  
Jiali Du ◽  
Zhiquan Hui ◽  
Feng Wu ◽  
Yuan Yan ◽  
Kai Yue ◽  
...  
Keyword(s):  
Flue Gas ◽  
Three Dimensional ◽  
Flue Gas Desulfurization ◽  
Cfd Analysis ◽  
Spouted Bed ◽  
Vaporization Process ◽  
Water Vaporization

Efficient Algorithms for Inspection and Reforming of Double-Curved Plates in Line-Heating Process

2006 ◽  
Vol 22 (03) ◽  
pp. 184-193
Author(s):  
Yujun Liu ◽  
Zhuoshang Ji ◽  
Yanping Deng ◽  
Jun Zhang ◽  
Ji Wang
Keyword(s):  
Manufacturing Process ◽  
Three Dimensional ◽  
Efficient Algorithms ◽  
Heating Process ◽  
Line Heating ◽  
Technical Parameters ◽  
Error Analyses ◽  
Metal Plates ◽  
Plate Formation ◽  
Prospective Application

Line heating is an effective and economical method for forming metal plates into three-dimensional shaped plates for ships, trains, and airplanes. When a curved plate subject to deformation is formed in line-heating process, the deformed shape is repeatedly inspected and reformed to reach the designed shape. Efficient automatic inspection and reforming processes are essential to enhance productivity in the whole manufacturing process. In this paper, efficient algorithms for inspection and reforming of double-curved plates are introduced. These algorithms have been developed to automatically inspect the transverse and longitudinal shape of plate surfaces and provide technical parameters to reform the unformed plates. The longitudinal shape of the plate surface is examined based on a shell plate development with plastic deformation during the plate formation, and the transverse shape is inspected through error analyses of transverse curvature radiuses. How to use the inspection results to reform unformed plates is discussed. In the end, experiments are performed with comparison to the current industrial plate manufacture, and results show a prospective application of our algorithms to the practical manufacturing of doublecurved plates. The methods presented in this study may play a role in realizing the automation of the entire curved-plate manufacturing process.

Prediction of Permeability Tensor for Plain Woven Fabric by Using Control Volume Finite Element Method

2003 ◽  
Vol 11 (6) ◽  
pp. 465-476 ◽  
Author(s):  
Y. S. Song ◽  
K. Chung ◽  
T. J. Kang ◽  
J. R. Youn
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Control Volume ◽  
Three Dimensional ◽  
Woven Fabrics ◽  
Permeability Tensor ◽  
Woven Fabric ◽  
Stacking Order ◽  
Control Volume Finite Element ◽  
Element Method

The complete prediction of the second order permeability tensor for a three dimensional multi-axial preform is critical if we are to model and design the manufacturing process for composites by considering resin flow through a multi-axial fiber structure. In this study, the in-plane and transverse permeabilities for a woven fabric were predicted numerically by the coupled flow model, which combines microscopic and macroscopic flows. The microscopic and macroscopic flows were calculated by using 3-D CVFEM(control volume finite element method) for micro and macro unit cells. To avoid a checkerboard pressure field and improve the efficiency of numerical computation, a new interpolation function for velocity is proposed on the basis of analytical solutions. The permeability of a plain woven fabric was measured by means of an unidirectional flow experiment and compared with the permeability calculated numerically. Reverse and simple stacking of plain woven fabrics were taken into account and the relationship between the permeability and the structures of the preform such as the fiber volume fraction and stacking order is identified. Unlike other studies, the current study was based on a more realistic three dimensional unit cell. It was observed that in-plane flow is more dominant than transverse flow within the woven perform, and the effect of the stacking order of a multi-layered preform was negligible.

Two-Phase Flow Field Numerical Simulation in Scrubber for Exhaust Gas Desulfurization

2014 ◽  
Vol 541-542 ◽  
pp. 1288-1291
Author(s):  
Zhi Feng Dong ◽  
Quan Jin Kuang ◽  
Yong Zheng Gu ◽  
Rong Yao ◽  
Hong Wei Wang
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Flue Gas ◽  
Two Phase Flow ◽  
Three Dimensional ◽  
Flue Gas Desulfurization ◽  
Parameter Design ◽  
Phase Flow ◽  
Two Phase ◽  
Entrance Angle

Calculation fluid dynamics software Fluent was used to conduct three-dimensional numerical simulation on gas-liquid two-phase flow field in a wet flue gas desulfurization scrubber. The k-ε model and SIMPLE computing were adopted in the analysis. The numerical simulation results show that the different gas entrance angles lead to internal changes of gas-liquid two-phase flow field, which provides references for reasonable parameter design of entrance angle in the scrubber.

scholarly journals Unsupervised Three-Dimensional Tubular Structure Segmentation via Filter Combination

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Hengfei Cui ◽  
Chang Yuwen ◽  
Lei Jiang
Keyword(s):  
Three Dimensional ◽  
Processing Technique ◽  
Medical Image Segmentation ◽  
Tubular Structure ◽  
Tubular Structures ◽  
Ranking Methods ◽  
Real Patient ◽  
The Public ◽  
Segmentation Methods ◽  
Structure Enhancement

AbstractTubular structure enhancement plays an utmost role in medical image segmentation as a pre-processing technique. In this work, an unsupervised 3D tubular structure segmentation technique is developed, which is mainly inspired by the idea of filter combination. Three well-known vessel filters, Frangi’s filter, the modified Frangi’s filter and the Multiscale Fractional Anisotropic Tensor (MFAT) filter, separately enhance the original images. Next, the enhanced images obtained using three different filters are combined. Different categories of vessel filters have the ability of complementarity, which is the main motivation of combining these three advanced filters. The combination of them ensures a high diversity of the enhancing results. Weighted mean and median ranking methods are used to conduct the operation of filter combination. Based on the optimized weights for all the three individual filters, fuzzy C-means method is then applied to segment the tubular structures. The proposed technique is tested on the public DRIVE and STARE datasets, the public synthetic vascular models (2011 and 2013 VascuSynth Sample), and real-patient Coronary Computed Tomography Angiography (CCTA) datasets. Experimental results demonstrate that the proposed technique outperforms the state-of-the-art filter combination-based segmentation methods. Moreover, our proposed method is able to yield better tubular structure segmentation results than that of each individual filter, which exhibits the superiority of the proposed method. In conclusion, the proposed method can be further used to facilitate vessel segmentation in medical practice.

scholarly journals Three-dimensional computer simulation of twill woven fabric by using polynomial mathematical model

2019 ◽  
Vol 12 (4-5) ◽  
pp. 1167-1178
Author(s):  
Fang Qin ◽  
◽  
Ying Jiang ◽  
Ping Gu ◽  
◽  
...  
Keyword(s):  
Mathematical Model ◽  
Computer Simulation ◽  
Three Dimensional ◽  
Woven Fabric

scholarly journals Three-dimensional printing for device selection in cardiology: Several key points should not be neglected

2016 ◽  
Author(s):  
Hongxing Luo ◽  
Zhongmin Wang
Keyword(s):  
3D Printing ◽  
Clinical Medicine ◽  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Image Postprocessing ◽  
Key Points ◽  
Study Results ◽  
Recent Developments ◽  
3D Transesophageal Echocardiography ◽  
Dimensional Printing

We comment on the recent developments and problems of three-dimensional printing in cardiology. Since there are currently no standards or consensuses for 3D printing in clinical medicine and the technology is at its infancy in cardiology, it’s very important to detail the procedures to allow more similar studies to further our understandings of this novel technology. Most studies have employed computed tomography to obtain source data for 3D printing, the use of real-time 3D transesophageal echocardiography for data acquisition remains rare, so it would be very valuable and inspiring to detail the image postprocessing steps, or the reliability of the study results will be doubtful.

Electromagnetic properties of three-dimensional woven carbon fiber fabric/epoxy composite

2017 ◽  
Vol 88 (20) ◽  
pp. 2353-2361 ◽  
Author(s):  
Wei Fan ◽  
Dan-dan Li ◽  
Jia-lu Li ◽  
Juan-zi Li ◽  
Lin-jia Yuan ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Carbon Fiber ◽  
Electromagnetic Interference ◽  
Three Dimensional ◽  
Woven Fabric ◽  
Epoxy Composites ◽  
Woven Composites ◽  
Carbon Fiber Fabric ◽  
Fiber Fabric ◽  
Wave Properties

To investigate the reinforcement architectures effect on the electromagnetic wave properties of carbon fiber reinforced polymer composites, three-dimensional (3D) interlock woven fabric/epoxy composites, 3D interlock woven fabric with stuffer warp/epoxy composites, and 3D orthogonal woven fabric/epoxy composites were studied by the free-space measurement system. The results showed that the three types of 3D woven carbon fiber fabric/epoxy composites had a slight difference in electromagnetic wave properties and the absorption was their dominant radar absorption mechanism. The electromagnetic wave absorption properties of the three types of composites were more than 90% (below −10 dB) over the 11.2–18 GHz bandwidth, and more than 60% (below −4 dB) over the 8–12 GHz bandwidth. Compared with unidirectional carbon fiber reinforced plastics, the three kinds of 3D woven carbon fiber fabric/epoxy composites exhibited better electromagnetic wave absorption properties over a broadband frequency range of 8–18 GHz. Therefore, the three kinds of 3D woven composite are expected to be used as radar absorption structures due to their excellent mechanical properties and outstanding absorption capacity. The total electromagnetic interference shielding effectiveness of the three types of 3D carbon fiber woven composites are all larger than 46 dB over the 8–12 GHz bandwidth, which is evidence that the three types of 3D carbon fiber woven composites can be used as excellent shielding materials for electromagnetic interference.

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