Simulation of the Unloading Pressure and Recovery Pressure of Internal Unloading Valve for Emulsion Pump Station

Abstract:

Automatic unloading valve is the critical pressure control element of emulsion pump station, the unloading pressure and the recovery pressure after unloading of the pump are two important technical parameters of the emulsion pump station. The working performance of the unloading valve can be improved by research and simulation of the two parameters, making clear the state of the unloading valve for emulsion pump station when working, calculating the electromagnetic thrust when the pilot valve and main valve core act as well as the response speed of the unloading pressure, checking and correcting the original spring force. The variation range of pump station pressure can be controlled within ±0.5MPa through the effective control on the unloading pressure and recovery pressure of the automatic unloading valve for emulsion pump station, which ensures the stability, reliability and sensitivity of the pump station when working. The improvement of the automatic unloading valve technology of internal unloading type is adaptable to the development needs of high-yield and high-efficiency modern mine for high pressure and super larger flow pump station.

• Periodical: Applied Mechanics and Materials (Volumes 48-49)
• Pages: 531-536
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.48-49.531
• Online since: February 2011
• Authors: Shi Bin Yang
• Keywords: Automatic Unloading Valve, Emulsion Pump Station, Internal Unloading, Recovery Pressure, Simulation, Unloading Pressure

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[5] Zhang Hui. Improvement of the Integral Algorithms of the DSHW Software for Digital Simulation of Hydraulic Systems and Research on Dynamic Characteristics of ABS Pipelines for Cars【D】. Nanjing: Southeast University, 2003. Sources: Natural Science Research Project (2009B460001) of The Education Department of Henan Province, the national patent of utility model: ZL901100285 Brief Introduction to Author: Yang Shibin, male, Han Ethnic Group, Born in 1966 in Jingshan County of Hubei Province, graduated from the Machine Manufacturing Major of Henan Polytechnic University (former Jiaozuo Coal Mining School), having been engaged in the technical work of coal mining machinery industry for many years, now engaged in the teaching and scientific research of building equipment and CAD, Associate Professor, published over twenty papers, the main teaching direction is CAD Application Technique and the main research direction is Electromechanical-hydraulic Integration Technology. Tel: [phone] E-mail: ysb200112@163. com, ysb200112@hncj. edu. cn Address: Architectural Environment & Energy Engineering Department of Henan University of Urban Construction, New District, Pingdingshan City, Henan Province Post Code: 467036.