Simulation on an Experimental System for the Dynamic Characteristics of Safety Valves with High Pressure and Large Flow Rate

Xiao Feng He; Long Jun Luo; Xiang Lin Liu; Xiao Hui Luo

doi:10.4028/www.scientific.net/AMM.263-266.748

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 263-266Simulation on an Experimental System for the...

Simulation on an Experimental System for the Dynamic Characteristics of Safety Valves with High Pressure and Large Flow Rate

Abstract:

Safety valves play very important role in protecting the safety of hydraulic support in coal mine. However, its development is greatly limited by the corresponding test bench for the dynamic experiment. In this paper, an experimental system for testing the dynamic performance of the safety valve with rated pressure up to 50MPa and rated flow rate up to 2000L/min, is introduced. Based on AMEsim software, modeling and simulation on the designed system is carried out. Some parameters of the system are also analyzed and their influences to the tested valve’s dynamic performance are obtained by simulation. It is found that the designed system, which adopting the combination of a piston and a plunger cylindersas well as accumulators, can fulfill the demands of the relevant standard. Among all the investigated factors, both the volume and pre-charged gas pressure of the accumulators have optimum values matching with the other parameters of the system. The stroke of the plunger cylinder, the rated flow rates of the cartridge valve and its pilot control valve, are required to be higher than a certain value to avoid negative effects on the dynamic performance of the tested valve. The research presented in this paper is helpful to the design of the test system.

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Periodical:

Applied Mechanics and Materials (Volumes 263-266)

Pages:

748-755

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.263-266.748

Citation:

Cite this paper

Online since:

December 2012

Authors:

Xiao Feng He, Long Jun Luo, Xiang Lin Liu, Xiao Hui Luo

Keywords:

Dynamic Characteristic, Hydraulic Support, Safety Valve, Simulation

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References

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