Unlock instant, AI-driven research and patent intelligence for your innovation.

Centrifugal pump volute structure capable of reducing noises and racial forces

A centrifugal pump and radial force technology, which is applied to pumps, pump components, non-variable pumps, etc., can solve the problems of flow noise and large radial force, and achieve stable operation

Inactive Publication Date: 2013-04-24
JIANGSU UNIV
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to solve the problem of large flow noise and radial force during the operation of the centrifugal pump, so as to realize the "quiet" design of the pipeline system and make its operation more stable

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
  • Centrifugal pump volute structure capable of reducing noises and racial forces
  • Centrifugal pump volute structure capable of reducing noises and racial forces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] exist figure 2 On the basis of the traditional single-tongue volute structure, the positions and shapes of the lower septum (3) and the upper septum (4) are determined according to the design size. The gap between the tongue (3) and the outer edge of the impeller is 2mm smaller than the gap at the first section of the original single tongue volute, and the throat area determined by the tongue (4) is equal to the throat area of ​​the original single tongue volute. The lower partition tongue (3) ensures the performance of the original pump, and the upper partition tongue (4) is used to reduce flow noise and radial force. The lower septal tongue (3) and the upper septal tongue (4) are smooth and excessive, and a nylon lining (5) with large elastic damping is added.

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 centrifugal pump volute structure capable of reducing noises and racial forces. The centrifugal pump volute structure comprises a lower baffle tongue (3), an upper baffle tongue (4) and a nylon liner (5) which are distributed in the shape of steps. The lower baffle tongue (3) is used for ensuring the property of an original pump and the upper baffle tongue (4) is used for reducing flowing noises and racial forces. The nylon liner (5) has a large elastic damping and is used for reducing pressure pulsations of wall faces of the baffle tongues. The centrifugal pump volute structure has the advantages that the flowing noises and the racial forces of the centrifugal pump are reduced so that the centrifugal pump is operated stably and a silent design of a pipeline system is achieved.

Description

technical field [0001] The invention relates to a centrifugal pump volute structure, in particular to a double-diaphragm volute for reducing the flow noise and radial force of the centrifugal pump. Background technique [0002] As an important energy conversion device and fluid conveying equipment, centrifugal pumps are widely used in various fields of the national economy, as well as cutting-edge technical fields such as submarines, ships, and aerospace. The centrifugal pump is one of the main excitation sources of flow noise in the pipeline system, and the uneven radial force of the impeller or volute will cause the vibration of the pipeline system. Therefore, reducing the flow noise and reducing the radial force of the centrifugal pump during operation is the key to realizing the "quiet" design of the entire piping system. [0003] The interference between the rotating impeller and the stationary volute is one of the main reasons for the flow noise and radial force of th...

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
IPC IPC(8): F04D29/42F04D29/66
Inventor 司乔瑞裴吉袁寿其袁建平王文杰
Owner JIANGSU UNIV