Experimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute

A pressure pulsation experiment of a dishwasher pump with a passive rotation double-tongue volute was carried out and compared with the pressure pulsation of a single-tongue volute and a static double-tongue volute. The pressure pulsation of the three volute models was compared and analyzed from two...

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Autores principales:	Yilei Zhu, Jinfeng Zhang, Yalin Li, Ping Huang, Hui Xu, Feng Zheng
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	dishwasher pump pressure pulsation rotor–rotor interaction impeller speeds double-tongue volute experiment Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/9e967a8a7421420bb3d7b114b4142fc8
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spelling	oai:doaj.org-article:9e967a8a7421420bb3d7b114b4142fc82021-11-25T18:12:19ZExperimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute10.3390/machines91102882075-1702https://doaj.org/article/9e967a8a7421420bb3d7b114b4142fc82021-11-01T00:00:00Zhttps://www.mdpi.com/2075-1702/9/11/288https://doaj.org/toc/2075-1702A pressure pulsation experiment of a dishwasher pump with a passive rotation double-tongue volute was carried out and compared with the pressure pulsation of a single-tongue volute and a static double-tongue volute. The pressure pulsation of the three volute models was compared and analyzed from two aspects of different impeller speeds and different monitoring points. The frequency domain and time–frequency domain of pressure pulsation were obtained by a Fourier transform and short-time Fourier transform, respectively. The results showed that the average pressure of each monitoring point on the rotating double-tongue volute was the smallest and that on the single-tongue volute was the largest. When the impeller rotates at 3000 rpm, there were eight peaks and valleys in the pressure pulsation time domain curve of the single-tongue volute, while the double-tongue volute was twice that of the single-tongue volute. Under different impeller speeds, the changing trends of pressure pulsation time and frequency domain curves of static and rotating double-tongue volutes at monitoring point p1 are basically the same. Therefore, a volute reference scheme with passive rotation speed is proposed in this study, which can effectively improve the flow pattern and reduce pressure inside the dishwasher pump, and also provide a new idea for rotor–rotor interference to guide the innovation of dishwashers.Yilei ZhuJinfeng ZhangYalin LiPing HuangHui XuFeng ZhengMDPI AGarticledishwasher pumppressure pulsationrotor–rotor interactionimpeller speedsdouble-tongue voluteexperimentMechanical engineering and machineryTJ1-1570ENMachines, Vol 9, Iss 288, p 288 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	dishwasher pump pressure pulsation rotor–rotor interaction impeller speeds double-tongue volute experiment Mechanical engineering and machinery TJ1-1570
spellingShingle	dishwasher pump pressure pulsation rotor–rotor interaction impeller speeds double-tongue volute experiment Mechanical engineering and machinery TJ1-1570 Yilei Zhu Jinfeng Zhang Yalin Li Ping Huang Hui Xu Feng Zheng Experimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute
description	A pressure pulsation experiment of a dishwasher pump with a passive rotation double-tongue volute was carried out and compared with the pressure pulsation of a single-tongue volute and a static double-tongue volute. The pressure pulsation of the three volute models was compared and analyzed from two aspects of different impeller speeds and different monitoring points. The frequency domain and time–frequency domain of pressure pulsation were obtained by a Fourier transform and short-time Fourier transform, respectively. The results showed that the average pressure of each monitoring point on the rotating double-tongue volute was the smallest and that on the single-tongue volute was the largest. When the impeller rotates at 3000 rpm, there were eight peaks and valleys in the pressure pulsation time domain curve of the single-tongue volute, while the double-tongue volute was twice that of the single-tongue volute. Under different impeller speeds, the changing trends of pressure pulsation time and frequency domain curves of static and rotating double-tongue volutes at monitoring point p1 are basically the same. Therefore, a volute reference scheme with passive rotation speed is proposed in this study, which can effectively improve the flow pattern and reduce pressure inside the dishwasher pump, and also provide a new idea for rotor–rotor interference to guide the innovation of dishwashers.
format	article
author	Yilei Zhu Jinfeng Zhang Yalin Li Ping Huang Hui Xu Feng Zheng
author_facet	Yilei Zhu Jinfeng Zhang Yalin Li Ping Huang Hui Xu Feng Zheng
author_sort	Yilei Zhu
title	Experimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute
title_short	Experimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute
title_full	Experimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute
title_fullStr	Experimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute
title_full_unstemmed	Experimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute
title_sort	experimental investigation of unsteady pressure pulsation in new type dishwasher pump with special double-tongue volute
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9e967a8a7421420bb3d7b114b4142fc8
work_keys_str_mv	AT yileizhu experimentalinvestigationofunsteadypressurepulsationinnewtypedishwasherpumpwithspecialdoubletonguevolute AT jinfengzhang experimentalinvestigationofunsteadypressurepulsationinnewtypedishwasherpumpwithspecialdoubletonguevolute AT yalinli experimentalinvestigationofunsteadypressurepulsationinnewtypedishwasherpumpwithspecialdoubletonguevolute AT pinghuang experimentalinvestigationofunsteadypressurepulsationinnewtypedishwasherpumpwithspecialdoubletonguevolute AT huixu experimentalinvestigationofunsteadypressurepulsationinnewtypedishwasherpumpwithspecialdoubletonguevolute AT fengzheng experimentalinvestigationofunsteadypressurepulsationinnewtypedishwasherpumpwithspecialdoubletonguevolute
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Experimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute

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