Experimental device and experimental method for researching behavior of boiling bubbles in pit under severe accidents

A technology for serious accidents and experimental devices, applied in measuring devices, material analysis through optical means, instruments, etc., can solve problems that cannot be simulated by aerosol decay heat

Pending Publication Date: 2020-09-11
HARBIN ENG UNIV
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of heating method is that the solid itself generates heat and radiates outward, which can be used to simulate the heating of the pebble bed. However, these experimental devices for

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
  • Experimental device and experimental method for researching behavior of boiling bubbles in pit under severe accidents
  • Experimental device and experimental method for researching behavior of boiling bubbles in pit under severe accidents
  • Experimental device and experimental method for researching behavior of boiling bubbles in pit under severe accidents

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0023] combine Figure 1-3 , the present invention provides an experimental device for simulating the behavior of boiling bubbles in pits after accidents, the device consists of main body boiling test sections 2, 3, 5, 6, 7, condensation sections 12, 13, 14, 15, 16, 17, solution The preparation sections 19, 20, 21, 22, 23, 24, 25 and connecting pipelines are composed of solenoid valves 9, 11, 26 and pressure sensors 10 in relevant parts of the pipelines, and temperature measuring points 1, 8, 18 are arranged in different positions and connected with The acquisition system is connected, and a high-speed camera 4 is installed outside the device for photographing bubble behavior. The basic principle of the experimental device is as follows: magnetic nanoparticles are dissolved in the boiling test section, and the particles are affected by the changing magnetic field...

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 aims to provide an experimental device and an experimental method for researching the behavior of boiling bubbles in a pit under severe accidents. The device comprises a glass container,a condensed water tank and a preparation water tank. A top cover is mounted at the upper end of the glass container. A base is mounted at the lower end of the glass container. The top cover is connected with the top of the condensate tank through a first pipeline. The lower portion of the glass container is connected with the bottom of the condensation water tank through a second pipeline, the upper portion of the condensation water tank is connected with the lower portion of the preparation water tank through a third pipeline, spiral coils of the electromagnetic inductor are wound outside the glass container, gaps for shooting are reserved between the spiral coils, and a heater and a stirrer are arranged in the preparation water tank. The decay heat of aerosol in the pit can be visuallysimulated, and the behavior of boiling bubbles in the pit can be deeply studied. The heating boiling behavior of aerosol in the pit can be independently researched, and the boiling behavior of the aerosol in the pit with melt can also be researched at the same time.

Description

technical field [0001] The invention relates to a simulation experiment device and an experiment method, in particular to a simulation experiment device and an experiment method for boiling bubbles in a pit after a nuclear accident. Background technique [0002] After a serious reactor accident, the fuel element cladding of the core will fail in a large area, and radionuclides will be released from the primary circuit to the containment. Aerosols are one of the main states of radionuclides that migrate and settle within the containment. At the same time, since the special safety facilities are put into use (such as: the spray system sprays cooling water into the containment), most of the aerosols will settle down and flow into the pit of the containment. These aerosol particles suspended in the crater release heat of decay. Under the action of decay heat, the water in the pit is continuously heated to boiling and generates boiling bubbles, which rise to the surface of the ...

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): G01N25/00G01N21/84
CPCG01N25/00G01N21/84G01N2021/8405Y02E30/30
Inventor 谷海峰尹威凯周艳民孙中宁孙庆洋虞想阎昌琪孟兆明
Owner HARBIN ENG 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