Design &amp; Simulation of a Hydraulic Back Pressure Valve with a Large Flow Range

Mao, Xuyao; Li, Bin; Liu, Yiou; Hu, Junhua; Lai, Qiwei

doi:10.1088/1742-6596/1213/4/042023

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…2 Due to many studies on proportional relief valves, some people have applied relief valves in pumping stations to improve the above problems [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], but most of them only stay in the theoretical design stage, and the practice of using relief valves in coal mine emulsion pumps is not in line with economic benefits. Because when the pump is unloaded by using a relief valve, the outlet pressure of the pump is high, wasting energy.…”

Section: Introductionmentioning

confidence: 99%

Research and Application of a High-pressure, Large-flow and High-water-based Mining Digitally Controlled Unloading Valve

Zhang,

Zhao

2023

Preprint

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In order to create a smart mine, it is necessary to digitize the existing emulsion pumping station. Existing research does not achieve this task, this paper designs and manufactures a high-pressure, high-flow, high-water-based mining digital controlled unloading valve (abbreviated as HLHMDCUV), which achieves good results in both theoretical analysis and experimental testing. In order to obtain the accurate dynamic characteristics, this valve was analyzed by simulation using AMESim. Based on the dynamic performance analysis and the flow field analysis inside the valve body, the structure has been optimized to improve the performance of HLHMDCUV. The results show that the HLHMDCUV has a better dynamic characteristics, which were also demonstrated in the experiment. At the same time, the HLHMDCUV is easy to disassemble and maintain. This paper provides a theoretical basis for the design of such valves, which is conducive to the subsequent promotion of intelligent mine transformation.

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Section: Introductionmentioning

confidence: 99%

Research and Application of a High-pressure, Large-flow and High-water-based Mining Digitally Controlled Unloading Valve

Zhang,

Zhao

2023

Preprint

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“…Some scholars analyzed the dynamic characteristics of the pilot-operated relief valve by theoretical method and Simulink simulation [9][10][11][12][13][14]. Moreover, some scholars analyzed the dynamic characteristics of the pilot-operated relief valve by the theoretical method and AMESim simulation [15][16][17][18][19]. Qing-liang Zeng et al used AMESim and Simulink to analyze dynamic characteristics of the digital large flow emulsion relief valve, respectively [20].…”

Section: Introductionmentioning

confidence: 99%

Characteristic Analysis of Digital Emulsion Relief Valve Based on the Hydraulic Loading System

Wan

Dai

Zeng

et al. 2020

Shock and Vibration

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In the hydraulic loading system, the performance of digital relief valve plays an important role in the dynamic response of load. However, the research on large-flow emulsion relief valve is still far from perfect. In this paper, digital relief valve is taken as the research object. Based on pilot-operated relief valve, a digital control scheme using a linear stepping motor is adopted to regulate the working pressure of relief valve. The structure of relief valve is analyzed and optimized from the aspects of dynamic and internal flow field characteristics to obtain a good working performance. To obtain its accurate working characteristic, the structural model and digital control system of relief valve are established by AMESim and Simulink, respectively, for electrohydraulic cosimulation. The results show that digital relief valve has a better characteristic of real-time dynamic pressure regulation. Therefore, the digital control system could improve the dynamic performance of relief valve, and the design of digital relief valve structure is reasonable and feasible. The simulation method employed in this paper provides a better theoretical basis and reference for the comprehensive research of digital large-flow emulsion relief valves based on the hydraulic loading system.

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Design & Simulation of a Superimposed Hydraulic Back Pressure Valve with Adaptive Back Pressure

Mao

Ding

et al. 2020

J. Phys.: Conf. Ser.

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A superimposed hydraulic back pressure valve with adaptive back pressure was designed. The back pressure of the valve changes as the diving depth of underwater vehicles changes, and is always higher than outboard environmental pressure by an adjustable value, preferred 0.5MPa, to avoid leakage of environmental medium to the inboard hydraulic system. The valve was designed in a pilot-operated style with a flat valve port of main valve. Variable damping plugs were used to easily regulate the dynamic performance of the valve. And an isolation device was adopted to isolate the contact between the inboard and outboard media. The static mathematic models of the valve were established and simulations were carried out. The simulation results show the valve has good pressure stability and flow adaptability, and its back pressure changes with the change of outboard pressure well.

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Design & Simulation of a Hydraulic Back Pressure Valve with a Large Flow Range

Cited by 3 publications

References 1 publication

Research and Application of a High-pressure, Large-flow and High-water-based Mining Digitally Controlled Unloading Valve

Research and Application of a High-pressure, Large-flow and High-water-based Mining Digitally Controlled Unloading Valve

Characteristic Analysis of Digital Emulsion Relief Valve Based on the Hydraulic Loading System

Design & Simulation of a Superimposed Hydraulic Back Pressure Valve with Adaptive Back Pressure

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