Development of pumps with improved anti-cavitation characteristics

When considering the creation of pumps with improved anti-cavitation characteristics, the results of an in-depth analysis of the problem of pumping viscous liquids at high temperatures are presented. On the example of the technological process of evaporation of sugar syrup on a film evaporator of th...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Olexandr Tiahno, Anatoly Vorozhka, Mykhailo Ovcharenko, Mikhailo Loburenko, Andrey Papchenco
Formato:	article
Lenguaje:	EN RU UK
Publicado:	PC Technology Center 2021
Materias:	cantilever pump centrifugal impeller reducer cavitation reserve film evaporator Technology (General) T1-995 Industry HD2321-4730.9
Acceso en línea:	https://doaj.org/article/425da528f8e141da9e6317e9c21b448a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:425da528f8e141da9e6317e9c21b448a
record_format	dspace
spelling	oai:doaj.org-article:425da528f8e141da9e6317e9c21b448a2021-11-04T14:05:19ZDevelopment of pumps with improved anti-cavitation characteristics1729-37741729-406110.15587/1729-4061.2021.243114https://doaj.org/article/425da528f8e141da9e6317e9c21b448a2021-10-01T00:00:00Zhttp://journals.uran.ua/eejet/article/view/243114https://doaj.org/toc/1729-3774https://doaj.org/toc/1729-4061When considering the creation of pumps with improved anti-cavitation characteristics, the results of an in-depth analysis of the problem of pumping viscous liquids at high temperatures are presented. On the example of the technological process of evaporation of sugar syrup on a film evaporator of the latest type, the problem of the occurrence of cavitation when pumping viscous liquids at high temperatures was revealed. After analyzing the existing machines used for the specified operating conditions, critical design and operating parameters were identified that affect the appearance of cavitation. Namely, the appearance of cavitation is influenced by the reduced diameter of the impeller inlet, the diameter of the impeller inlet, the number of blades, the width of the blades and the rotor speed. To study the level of influence of these parameters, a method of physical modeling was chosen, an experimental stand was designed and manufactured. Studies have been carried out on the operation of the pump with and without a reducer. The work with a two- and three-blade inducer is analyzed, the work with an open and closed impeller, with one and two-level blade system is investigated. As a result of the analysis of experimental data, the optimal design of the hydraulic part with a three-blade reducer and a semi-open impeller with a two-level blade system was chosen. In turn, this made it possible to reduce the compression of the flow at the inlet to the impeller without loss of energy efficiency; the angles of inclination of the inducer and impeller blades were synchronized. The experience gained made it possible to design and manufacture an industrial sample of a cantilever pump with an inducer and a semi-open impeller. Thus, allowing to solve the problem of pumping thick syrup on a film evaporating unit of the Teofipol sugar plant (Khmelnytskyi region, Ukraine), with a cavitation reserve of 1.5 m.Olexandr TiahnoAnatoly VorozhkaMykhailo OvcharenkoMikhailo LoburenkoAndrey PapchencoPC Technology Centerarticlecantilever pumpcentrifugal impellerreducercavitation reservefilm evaporatorTechnology (General)T1-995IndustryHD2321-4730.9ENRUUKEastern-European Journal of Enterprise Technologies, Vol 5, Iss 1(113), Pp 33-40 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	cantilever pump centrifugal impeller reducer cavitation reserve film evaporator Technology (General) T1-995 Industry HD2321-4730.9
spellingShingle	cantilever pump centrifugal impeller reducer cavitation reserve film evaporator Technology (General) T1-995 Industry HD2321-4730.9 Olexandr Tiahno Anatoly Vorozhka Mykhailo Ovcharenko Mikhailo Loburenko Andrey Papchenco Development of pumps with improved anti-cavitation characteristics
description	When considering the creation of pumps with improved anti-cavitation characteristics, the results of an in-depth analysis of the problem of pumping viscous liquids at high temperatures are presented. On the example of the technological process of evaporation of sugar syrup on a film evaporator of the latest type, the problem of the occurrence of cavitation when pumping viscous liquids at high temperatures was revealed. After analyzing the existing machines used for the specified operating conditions, critical design and operating parameters were identified that affect the appearance of cavitation. Namely, the appearance of cavitation is influenced by the reduced diameter of the impeller inlet, the diameter of the impeller inlet, the number of blades, the width of the blades and the rotor speed. To study the level of influence of these parameters, a method of physical modeling was chosen, an experimental stand was designed and manufactured. Studies have been carried out on the operation of the pump with and without a reducer. The work with a two- and three-blade inducer is analyzed, the work with an open and closed impeller, with one and two-level blade system is investigated. As a result of the analysis of experimental data, the optimal design of the hydraulic part with a three-blade reducer and a semi-open impeller with a two-level blade system was chosen. In turn, this made it possible to reduce the compression of the flow at the inlet to the impeller without loss of energy efficiency; the angles of inclination of the inducer and impeller blades were synchronized. The experience gained made it possible to design and manufacture an industrial sample of a cantilever pump with an inducer and a semi-open impeller. Thus, allowing to solve the problem of pumping thick syrup on a film evaporating unit of the Teofipol sugar plant (Khmelnytskyi region, Ukraine), with a cavitation reserve of 1.5 m.
format	article
author	Olexandr Tiahno Anatoly Vorozhka Mykhailo Ovcharenko Mikhailo Loburenko Andrey Papchenco
author_facet	Olexandr Tiahno Anatoly Vorozhka Mykhailo Ovcharenko Mikhailo Loburenko Andrey Papchenco
author_sort	Olexandr Tiahno
title	Development of pumps with improved anti-cavitation characteristics
title_short	Development of pumps with improved anti-cavitation characteristics
title_full	Development of pumps with improved anti-cavitation characteristics
title_fullStr	Development of pumps with improved anti-cavitation characteristics
title_full_unstemmed	Development of pumps with improved anti-cavitation characteristics
title_sort	development of pumps with improved anti-cavitation characteristics
publisher	PC Technology Center
publishDate	2021
url	https://doaj.org/article/425da528f8e141da9e6317e9c21b448a
work_keys_str_mv	AT olexandrtiahno developmentofpumpswithimprovedanticavitationcharacteristics AT anatolyvorozhka developmentofpumpswithimprovedanticavitationcharacteristics AT mykhailoovcharenko developmentofpumpswithimprovedanticavitationcharacteristics AT mikhailoloburenko developmentofpumpswithimprovedanticavitationcharacteristics AT andreypapchenco developmentofpumpswithimprovedanticavitationcharacteristics
_version_	1718444894987485184

Development of pumps with improved anti-cavitation characteristics

Ejemplares similares