Investigation on the Dynamic Characteristics of Port Valves in a Diaphragm Pump for Exhaust Gas Treatment System by FSI Modeling

Pan, Xiwei; Yang, Shuiqing; Shi, Youcheng; Liu, Yinshui

doi:10.1109/access.2019.2914282

Cited by 5 publications

(3 citation statements)

References 37 publications

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“…By considering the deformation of the diaphragm, Pan et al [76] used dynamic mesh technology and a transient 3D FSI model to simulate the complete working process of the diaphragm pump. As shown in Figures 15 and 16, the results showed that the FSI method can predict the dynamic characteristics of end valves.…”

Section: Fluid-solid-interaction Research (Fsi)mentioning

confidence: 99%

A Review of the Development and Research Status of Symmetrical Diaphragm Pumps

Zhao,

Lou,

Peng

et al. 2023

Symmetry

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With the continuous improvement in human awareness of environmental protection, energy savings, and emission reduction, as well as the vigorous development of precision machinery and process technology, energy-saving and efficient diaphragm pumps have become a hot research topic at home and abroad. The diaphragm pump is a membrane-isolated reciprocating transport pump that isolates the transport medium from the piston through the diaphragm and can be used to transport high-viscosity, volatile, and corrosive media, and the symmetrical structure can make it easier for the diaphragm pump to achieve stable operation, reduce vibration and noise, and extend the life of the pump. This paper summarizes the development and research status of diaphragm pumps in recent years, including diaphragm pump structure, working principle, category, cavitation research, wear research, fault diagnosis research, vibration and noise research, fluid–solid-interaction research, and optimum research on one-way valves and diaphragms. It also puts forward some reasonable and novel viewpoints, such as applying the theory of entropy production to explore the motion mechanism of diaphragm pumps, optimizing the performance of diaphragm pumps, using new technologies to study new materials for diaphragm pumps, and designing diaphragm protection devices. This review provides valuable references and suggestions for the future development and research of diaphragm pumps.

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Section: Fluid-solid-interaction Research (Fsi)mentioning

confidence: 99%

A Review of the Development and Research Status of Symmetrical Diaphragm Pumps

Zhao,

Lou,

Peng

et al. 2023

Symmetry

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“…Port valves also exert a significant influence on the performance of the diaphragm pump. References [30] and [31] showed the dynamic behavior of different port valves and their influences on the diaphragm pump. The dynamic equation of the valve ball is expressed as follows:…”

Section: ) Diaphragm Pumpmentioning

confidence: 99%

Effects of a Bladder Accumulator on Pressure Pulsation of Urea Dosing System

et al. 2019

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Non-air-assisted urea dosing systems (NAUDSs) with diaphragm pump are usually used in selective catalytic reduction (SCR) systems to supply the urea water solution. The system pressure pulsation caused by diaphragm pump can significantly reduce the injecting precision of NAUDSs and further decrease the conversion efficiency of the SCR systems. Therefore, this study aimed to reduce the system pressure pulsation by installing a bladder accumulator in a NAUDS. The bladder accumulator could effectively absorb the system pressure pulsation. A numerical model was proposed to study the effects of the bladder accumulator on the pressure pulsation of the NAUDS. The software Amesim 15.0 R and ADINA 9.3 R were used to develop a new submodel for the bladder accumulator and the diaphragm pump in the NAUDS. Simulation results show that the pressure pulsation of the NAUDS mainly depended on the bladder accumulator parameter. Reducing bladder thickness, bladder elasticity modulus, and bladder accumulator stiffness significantly decreased the system pressure pulsation. When the stiffness of the bladder accumulator was lower than 5×10 11 Pa/m 3 , the pulsation ratio of system pressure reduced to below 5%. A test system was built to validate the numerical model. The test data of the system pressure showed almost the same change trend as the simulation results. Thus, the proposed numerical model can effectively predict the dynamic behavior of the NAUDS, and the results may serve as a reference for the design of similar NAUDSs.INDEX TERMS Selective catalytic reduction (SCR), non-air-assisted urea dosing system (NAUDS), diaphragm pump, pressure pulsation, bladder accumulator.

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“…CG Wang and YQ You [ 16 ] established a simplified three-dimensional (3D) numerical model of the diaphragm in the micro diaphragm pump, used the finite element analysis software ANSYS to carry out structural nonlinear analysis and fluid structure coupling transient analysis, and optimized the size of the diaphragm according to the stress distribution. XW Pan and SD Yang [ 17 ] established a transient three-dimensional fluid-structure interaction model to investigate the deformation of a diaphragm pump used in exhaust gas treatment system. The simulation results imply that the deformation is only determined by the back pressure of the diaphragm pump.…”

Section: Section 1: Introductionmentioning

confidence: 99%

Deformation investigation of electromagnetic diaphragm pump rubber diaphragm

Liao,

Wang,

Chen

et al. 2024

PLoS ONE

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A diaphragm pump is a type of volumetric pump that has excellent sealing performance. An electromagnetic diaphragm pump is a kind of widely adopted diaphragm pump that has a simple structure, low power loss, and high cost performance. However, the calculation method of deformation for the electromagnetic diaphragm pump rubber diaphragm is presently lacking. Herein, a calculating method of deformation for the electromagnetic diaphragm pump rubber diaphragm is proposed. By establishing and analyzing a deformation model of the electromagnetic diaphragm pump rubber diaphragm, a theoretical relationship between the deformation of the electromagnetic diaphragm pump rubber diaphragm, the size of the electromagnetic diaphragm pump rubber diaphragm and the pressure of fluid is determined. The experimental results indicate that the biggest difference between the tested axial deformation and the calculated axial deformation of the electromagnetic diaphragm pump rubber diaphragm is 0.04 mm and the calculation results show agreement with the experimental results.

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Investigation on the Dynamic Characteristics of Port Valves in a Diaphragm Pump for Exhaust Gas Treatment System by FSI Modeling

Cited by 5 publications

References 37 publications

A Review of the Development and Research Status of Symmetrical Diaphragm Pumps

A Review of the Development and Research Status of Symmetrical Diaphragm Pumps

Effects of a Bladder Accumulator on Pressure Pulsation of Urea Dosing System

Deformation investigation of electromagnetic diaphragm pump rubber diaphragm

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