Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Spiral casing of low-vibration and low-noise centrifugal pump

A low-noise and low-vibration technology, applied in the field of centrifugal pumps, achieves the effects of simple structure, alleviating strong pressure pulsation, and reducing vibration and noise

Inactive Publication Date: 2011-05-11
JIANGSU UNIV
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to reduce the vibration and noise induced by the internal flow of the centrifugal pump, and propose a low-vibration and low-noise centrifugal pump volute, which has remarkable vibration and noise reduction effects, simple structure, and does not affect Centrifugal pump operating efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spiral casing of low-vibration and low-noise centrifugal pump
  • Spiral casing of low-vibration and low-noise centrifugal pump
  • Spiral casing of low-vibration and low-noise centrifugal pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] combine figure 1 , the low-vibration and low-noise centrifugal pump volute of the present invention includes components such as a casing 1 and a guide vane 2, and the guide vane 2 is fixed on the casing 1 by welding to improve the flow state in the diffusion section of the casing to achieve Mitigates the effect of unsteady flow-induced vibrational noise.

[0015] combine figure 2 , The embodiment guide vane 2 is a three-dimensional twisted type, the number of blades is 2, the thickness is 3mm, and it is processed by impact molding. The guide vane inlet placement angle is 28°, and the outlet placement angle is 0°.

[0016] The working process is as follows:

[0017] The casing 1 is a pressurized water chamber used to collect the liquid at the outlet of the impeller of the centrifugal pump, which converts the kinetic energy of the liquid into pressure energy. The casing is fixed, and the static and dynamic interference between the rotation of the impeller of the centr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a spiral casing of a low-vibration and low-noise centrifugal pump, which relates to the technical field of centrifugal pumps. The spiral casing comprises a shell (1) and guide vanes (2), wherein the guide vanes (2) are in a three-dimensional twist mode, processed by way of impact molding, and fixedly welded on an expansion section of the shell (1). In the invention, the flow state in the expansion section of the shell of the centrifugal pump is improved by increasing the guide vanes, thereby achieving the purpose of reducing the vibration and noise of the centrifugal pump. The spiral casing has the advantages of simple structure, obvious vibration and noise reduction effects and capability of not affecting the operation efficiency of the centrifugal pump.

Description

technical field [0001] The invention belongs to the technical field of centrifugal pumps, in particular to a low-vibration and low-noise centrifugal pump volute. Background technique [0002] Centrifugal pump is a kind of general machinery, which is widely used in various sectors of the national economy and plays an extremely important role. Nowadays, the vibration and noise generated by centrifugal pumps not only worsen working conditions, affect the performance of equipment and systems, shorten the operating life, but also affect people's physical health and mental state, so they are increasingly becoming a social concern. The vibration noise of centrifugal pumps includes vibration noise caused by machinery and flow induced vibration noise. Get well resolved. However, there are few researches on flow-induced vibration and noise control. [0003] After retrieval, the patent applications related to the present invention include: stepped volute tongue noise-reducing volute...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/44
Inventor 刘厚林王勇袁寿其谈明高王凯
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com