Optimum design method for gap between movable part and static part of centrifugal pump

An optimized design, centrifugal pump technology, applied in computing, special data processing applications, instruments, etc., can solve the problem of not considering the fluid excitation force, etc., and achieve the effect of high R&D efficiency, low R&D cost, and wide application range

Inactive Publication Date: 2014-08-27
JIANGSU UNIV
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing seismic analysis, the fluid excitation force is not considered, and there is no relevant report that the seismic ...

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
  • Optimum design method for gap between movable part and static part of centrifugal pump
  • Optimum design method for gap between movable part and static part of centrifugal pump
  • Optimum design method for gap between movable part and static part of centrifugal pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0039] The invention examines whether the centrifugal pump can maintain operability under the action of safety shutdown earthquake, that is, the relative deformation between the rotating part and the stationary part is smaller than the gap between them, so that the normal operation of the centrifugal pump is not affected. It provides a new idea for optimizing the design of the gap between the dynamic and static parts of the nuclear power centrifugal pump. Taking a certain type of waste heat discharge pump for nuclear power as an example, the method for optimizing the gap between dynamic and static components of a nuclear power centrifugal pump based on seismic force and fluid excitation force according to the present invention is specifically described, including the follo...

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 provides an optimum design method for a gap between the movable part and the static part of a centrifugal pump. The optimum design method comprises the steps of using a value calculation method of combining a response spectrum with fluid-structure interaction, and considering an earthquake force and a fluid excitation force simultaneously to obtain quantitative deformations at an impeller opening ring and an impeller outlet in the multi-operating mode of a residual heat removal pump. The law of deformation between the movable part and the static part in the multi-operating mode of the residual heat removal pump is obtained by virtue of the calculation of combining the earthquake response spectrum with fluid-structure interaction, and by using the method of considering the influence of the earthquake force and the fluid excitation force on an impeller, so as to optimize the design for the gap between the movable part and the static part of the residual heat removal pump. The method is based on an earthquake response spectrum analysis and a fluid-induced vibration analysis, thus the design for the gap between the movable part and the static part of the centrifugal pump for nuclear power is more reasonable, a more accurate calculation result is provided for the structural design for the centrifugal pump, and novel design thinking and method are provided for the optimum design for the centrifugal pump structure for nuclear power.

Description

technical field [0001] The invention relates to the field of centrifugal waste heat discharge pumps used in nuclear power, in particular to a method for optimizing the clearance between dynamic and static components of a centrifugal pump. Background technique [0002] According to the statistics of the PDE database in the United States, there have been 1,062 earthquakes of magnitude 6 or above, 161 earthquakes of magnitude 7 or above, and 19 earthquakes of magnitude 8 or above in the past ten years. On March 14, 2011, the Fukushima nuclear power plant in Japan faced the danger of explosion due to insufficient earthquake resistance design; the magnitude 6.5 earthquake in Iran in 2010; the Sichuan earthquake in China in 2008, etc. Due to the frequent occurrence of earthquakes, people are gradually aware of the great danger of earthquakes. These earthquakes are placed in front of engineers, which put forward higher requirements for our nuclear power plant's anti-seismic capabil...

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): G06F17/50
Inventor 邓鑫袁寿其袁建平裴吉司乔瑞李亚林
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap