Helium-filled system for removing grains in gas

A particle removal technology, which is applied in the field of nuclear power plant safety and environmental protection, can solve the problems of low power of electrostatic precipitator, affecting the safety of the surrounding environment, and poor removal effect of fine particles, so as to achieve simple control, convenient implementation and protection of the public Health and Environmental Effects

Inactive Publication Date: 2012-12-12
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even the fourth-generation supercritical water reactors have special problems in the movement of particles due to the characteristics of supercritical water, which affects the safety of the surrounding environment
The generation of graphite dust in high-temperature gas-cooled reactors will also cause a series of problems, and may affect the safety and normal operation of the reactor
In the generation IV sodium-cooled fast reactor, the migration of accidental sodium particles will also endanger the safety of the system and the safety of people around it
At present, the removal of particulate matter in...

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
  • Helium-filled system for removing grains in gas
  • Helium-filled system for removing grains in gas
  • Helium-filled system for removing grains in gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention provides a helium-filled gas particle removal system. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] The core part of the system is the helium tank 5, and its structure is as follows figure 2 As shown: the helium tank 5 is divided into three parts from top to bottom: the upper header 21, the helium tank body 14 and the lower header 18; a number of staggered particle removal channels 15 are arranged in the helium tank body 14 and water cooling channel 19 (as Figure 4 ), the upper part of the side wall of the helium tank box body 14 is provided with a helium gas filling port 20, and the lower part is provided with an exhaust port 16; a grid-shaped intake pipe 13 is provided in the upper header 21, and the intake pipe 13 has two inlets and several outlets, the two inlets are respectively the air inlet 23 at the center and the helium gas return port 12 at the edg...

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 helium-filled system for removing grains in gas and belongs to the technical field of safety and environmental protection of a nuclear power plant. When a serious accident happens in the nuclear power plant, the inner pressure of a safety shell is increased, a connecting valve is opened and grains are conveyed to a helium box through a pipeline; the helium box is a pressure-bearing stainless steel box with a water-cooling wall; due to thermophoresis and turbulence effects, the grains are deposited in the helium box; and meanwhile, a helium containing box is cooled by a water pipe of an external device, so as to form a temperature field with a certain gradient in the helium containing box; and helium has a higher heat conductance, so that the thermophoresis deposition is higher in efficiency. A removing device is mounted on the exterior of the safety shell of the nuclear power plant, the implementation is convenient and the control is simple, so that the safe, efficient and reliable running of the nuclear power plant is ensured.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant safety and environmental protection, and in particular relates to a helium-filled gas particle removal system. Background technique [0002] In today's energy shortage in the world, nuclear power is the only energy that can achieve continuous power supply except for fossil energy. After the third nuclear power plant accident in Fukushima, Japan in 2011, the Chinese government established the basic policy of "safe and efficient" development of nuclear power. Therefore, it is a very important task to develop and develop effective measures to deal with severe nuclear power accidents. [0003] Radioactive particulate matter produced during severe accidents at nuclear power plants is of greatest concern. As we all know, even non-radioactive particles are extremely harmful to humans, PM 10 , PM 2.5 Such fine particulate matter has become an important problem that the international commun...

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): G21F9/02B01D45/00
Inventor 周涛陈娟樊昱楠汝小龙刘亮林达平王泽雷
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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