Industrial valves � Bolted bonnet steel gate valves

In this paper we conduct study on flow-induced vibration of large-span upwelling radial steel Gate and its hydraulic hoist. Place an emphasis on vibration response characteristics under two working conditions of diversion and drainage, which proves the safety of hydraulic hoist gate vibration caused by gate vibration. Firstly, we study on dynamic characteristics of fluid-structure interaction of association system of gate and start and stop lever, reveals the discipline of the effect fluid having on structural dynamic characteristics. On this basis, flow-induced vibration characteristics under two conditions of with and without start and stop lever action considered. The results indicate that the gate vibration response with hydraulic hoist used decreases, which explains start and stop lever has certain effect of restraining vibration on gate vibration. In addition, under the working condition of drainage the vibration magnitude of start and stop lever is smaller than that of gate body, which explains there is damping action during transference of gate vibration through start and stop lever. The results find out that on the assumption of optimized gate structure and hydraulic arrangement, it is practicable, safe and reliable to adopt hydraulic hoist. The achievement has directive significance on similar projects construction in the future

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Structural Stress Based Fatigue Analysis Method for Plane Steel Gate

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.838-841.314 ◽

2013 ◽

Vol 838-841 ◽

pp. 314-318

Author(s):

Hang Gang Guo ◽

Jin Zhang ◽

Yang Zhang ◽

Wei Zhang

Keyword(s):

Fatigue Failure ◽

Fatigue Analysis ◽

Structural Stress ◽

Analysis Method ◽

Fatigue Design ◽

Life Evaluation ◽

Water Head ◽

Asme Code ◽

Rigid Connection ◽

Steel Gate

Though fatigue failure is often happened in steel gate, fatigue design has not yet been included in design or evaluation standards in China. In this paper, analytical theory based structural stress method and structural stress based fatigue analysis method are combined and employed for fatigue life evaluation of plane steel gate. The variation of water head is taken into consideration for the conditions of gate running and resting. In order to give a valid evaluation, the weld located among all components is considered as rigid connection when calculating structural stress. Master S-N curve in ASME code is used for life evaluation. Example shows the method can be used for fatigue analysis of plane steel gate, and can be used to identify fatigue failure zone.

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Establishment of Template Library for Data Graphics of Flat Steel Gate and the Application in Software

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.501-504.2576 ◽

2014 ◽

Vol 501-504 ◽

pp. 2576-2579

Author(s):

Wei Bo Yin ◽

Kai Sun ◽

Lu Shuang Wei

Keyword(s):

3D Modeling ◽

Control Parameters ◽

Design Efficiency ◽

Main Structure ◽

Flexible Assembly ◽

Data Graphics ◽

Template Library ◽

Flat Steel ◽

Steel Gate ◽

Gate Design

This article presents main structure of hydraulic flat steel gates, control parameters and constraint conditions in 3D Modeling and construction template library, featuring different hierarchies and levels and inclusive of graphics and associated information, for data graphics of flat steel gate. In the template library, components for template of every level are separable and assembled automatically, providing a flexible assembly and disassembly mode for a whole steel gate design. The template library can accumulate knowledge and experiences, thus greatly improving design efficiency and accuracy.

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Research on Quantitative Assessment of Corrosion and Mechanical Properties of Hydraulic Steel Structure

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.146-147.1132 ◽

2010 ◽

Vol 146-147 ◽

pp. 1132-1137

Author(s):

Jian Bin Guo ◽

Nan Wang ◽

Hao Su

Keyword(s):

Mechanical Properties ◽

Steel Structure ◽

Assessment Method ◽

Distance Measurement ◽

Operating Environment ◽

Safe Operation ◽

Corrosion Morphology ◽

Fuzzy Assessment ◽

The Impact ◽

Steel Gate

The hydraulic steel structure is an important device in water resources and hydropower engineering, affected by operating environment, corrosion is becoming an important factor in affecting the structure on safe operation .In this paper, fuzzy assessment method for disaster degree identification is introduced, using the Monte-Carle numerical simulation for distance measurement to achieve the distance measurement calculated of corrosion morphology, making corrosion assessment of hydraulic steel gate quantitative. Combining with the study for attenuation of mechanical properties of corrosion components, this paper propose the method of quantitative correction of corrosion components based on five levels, clearing the impact properties of corrosion components caused by corrosion morphology .

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The strength of welded steel gate valves for chemical pipelines

Chemical and Petroleum Engineering ◽

10.1007/bf01146997 ◽

1969 ◽

Vol 5 (2) ◽

pp. 104-105

Author(s):

R. A. Kolyadina ◽

G. Ya. Kuznetsova

Keyword(s):

Welded Steel ◽

Steel Gate

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Safety Evaluation of Hydraulic Steel Gate Based on TOPSIS Model

Journal of Physics Conference Series ◽

10.1088/1742-6596/2029/1/012100 ◽

2021 ◽

Vol 2029 (1) ◽

pp. 012100

Author(s):

Y.J Shi ◽

Y.Y Shao ◽

Z.M Zhang ◽

Y Jiang ◽

L Qi

Keyword(s):

Safety Evaluation ◽

Steel Gate ◽

Topsis Model

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Nonlinear Finite Element Static and Corrosion Sensitive Analysis of Radial Steel Gate

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1051.886 ◽

2014 ◽

Vol 1051 ◽

pp. 886-890 ◽

Cited By ~ 1

Author(s):

Yue Xin Liu ◽

Hua Guo ◽

Jun Lin Wang ◽

Jian Heng Sun

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Nonlinear Analysis ◽

Three Dimensional ◽

Nonlinear Finite Element ◽

Nonlinear Finite Element Method ◽

Stress Variation ◽

Sensitive Analysis ◽

Corrosion Depth ◽

Steel Gate

Using nonlinear finite element method, the three dimensional nonlinear analysis of the radial steel gate of a reservoir is carried out. In the analysis, the radial steel gate considering and without considering the stiffeners of the panel is analyzed to investigate the effect of the stiffener to the panel. In the corrosion sensitive analysis, the panel of the gate is divided into three sections, and the nonlinear analysis is carried out for each section that is rusted with different corrosion depth. The corrosion sensitive section and the stress variation with the corrosion depth are present.

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