Mechanical seal test system for nuclear main pump

A mechanical seal and experimental testing technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, to achieve the effect of stabilizing pressure and reducing fluctuations

Active Publication Date: 2010-12-08
HEFEI GENERAL MACHINERY RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there has been no relevant test that can simulate both the hydrostatic mechanical seal test for the nuclear main pump and the hydrodynamic mechanical seal test for the nuclear main pump, and at the same time simulate the combined hydrodynamic and static pressure test for the nuclear main pump. Report on Test System for Mechanical Seal Test

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
  • Mechanical seal test system for nuclear main pump
  • Mechanical seal test system for nuclear main pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] see figure 1 , the test system of this embodiment consists of a medium concentration control zone (1), an injection medium treatment zone (2), a bench zone (3) and a backflow medium post-treatment zone (4) including leakage, backflow, back pressure and cooling. );in:

[0024] In the bench area (3), the driving force is provided by the frequency conversion motor, and the test spindle is the driven part; a hydrostatic seal or a hydrodynamic seal or a hydrodynamic seal and a static seal are arranged in series on the test shaft. Combined seal with high pressure; the frequency conversion motor can be directly connected to the output, or the output can be output by belt transmission, and the stepless speed regulation can be realized through the frequency converter.

[0025] In the injection medium treatment area (2), a stirrer M1 for stirring the medium is set in the low-pressure container C1 to prevent the crystallization of the medium, keep the concentration of the medium ...

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 mechanical seal test system for a nuclear main pump, which is characterized in that the system comprises a medium concentration control zone, an injection medium processing zone, a frame zone and a reflux medium post processing zone. A test main shaft is used as a driven component in the frame zone; the test shaft is provided with a fluid static pressure seal or a fluid dynamic pressure seal or a fluid dynamic-static pressure combined seal. In the injection medium processing zone, a seal medium flow passage located between a low pressure container and a system seal cavity is respectively provided with a high pressure pump, a high pressure buffer tank and an energy accumulator, which are connected in series with a switchable magnetic filter, an organic filtering film and used,for providing a system pressure source; in the reflux medium post processing zone, a long pipe throttling cooler with a back pressure value is arranged at an outlet of the system seal cavity. The invention not only can simulate a fluid static pressure mechanical seal test for the nuclear main pump, but also can simulate a fluid dynamic pressure mechanical seal test for the nuclear main pump, at the same time, the invention further can simulate a fluid dynamic-static pressure combined mechanical seal test for the nuclear main pump.

Description

technical field [0001] The invention relates to a mechanical seal test system for a nuclear main pump, and more specifically relates to a test system for performing mechanical seal performance tests by simulating the working conditions of the nuclear power plant reactor coolant pump shaft seal. Background technique [0002] Mechanical seal is an indispensable component in fluid rotating machinery, its quality and performance directly affect and determine the working performance of the main engine. Since the mechanical seal mechanism involves many disciplines such as tribology, material science, fluid mechanics, solid mechanics, heat transfer, lubrication theory, etc., a complete design theory has not yet been formed, and many data are obtained by experiments. Therefore, the test technology of mechanical seal is very important. [0003] The nuclear main pump uses a mechanical seal to prevent reactor coolant from leaking along the pump shaft. It is a key component of the main...

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 Patents(China)
IPC IPC(8): G01M3/02
Inventor 吴兆山陈学东蔡粤华姚黎明郑国运丁思云杨博峰李香沈宗沼李鲲
Owner HEFEI GENERAL MACHINERY RES INST
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