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A spray type first liquid wall generating device

A generating device and a spray-type technology, which are applied in the field of spray-type first liquid wall generating devices, can solve problems such as difficulty in bearing high neutron flux and surface heat load, degradation of neutron irradiation performance, and short service life, etc. problems, to achieve the effect of being conducive to industrialization, promoting circulation, and improving utilization.

Inactive Publication Date: 2017-05-17
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, long-term efforts are needed to significantly improve the performance of the first wall. The high requirements of the first wall for temperature, stress, neutron impact and reliability design have always been one of the key factors restricting the development of the first wall. Solid target materials Can only withstand 8MW / m 2 The thermal load is expected to withstand 20MW / m in the future 2 Left and right thermal loads, the liquid free surface overcomes the shortcomings of solid block materials such as the degradation of neutron irradiation performance, short service life, and difficulty in replacement, and can be easily resolved through cyclic treatment and renewal. In the prior art, the liquid metal composition The first wall mostly exists in the form of jets, liquid films and liquid curtains. Compared with the surface of flowing liquid metal, it is difficult to withstand higher neutron flux and surface heat load.

Method used

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  • A spray type first liquid wall generating device
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  • A spray type first liquid wall generating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] In the EAST device with a plasma major diameter of 1.95m and a minor diameter of 0.49m, the liquid lithium-lead is injected into the upper spray ring pipe and the side spray ring pipe through the injection device, and the support layer cavity of the spray ring pipe and the The height and thickness of the covering layer are 5cm and 0.6cm respectively, and the liquid lithium-lead moves outward at the speeds of 2.6m / s and 0.9m / s in the direction of the initial velocity with the angles of 67° and 65° to the vertical direction respectively. and spray inward, and make a curved movement above the plasma to complete the sealing above the plasma, and fall into the outer collection tank and the inner collection tank respectively; The direction is the initial velocity direction of 30°, and the liquid lithium lead in the inner spray ring pipe is sprayed from the outer and inner spray ring pipes at a speed of 9.8m / s at an initial velocity direction of 15° from the vertical direction....

Embodiment 2

[0080] In the EAST device with a plasma major diameter of 1.95m and a minor diameter of 0.49m, the liquid lithium-lead is injected into the upper spray ring pipe and the side spray ring pipe through the injection device, and the support layer cavity of the spray ring pipe and the The height and thickness of the covering layer are 8cm and 0.7cm, respectively, and the liquid lithium-lead moves outward at the speeds of 2.3m / s and 1.3m / s in the direction of the initial velocity at an angle of 62° and 60° to the vertical direction, respectively. and spray inward, and make a curved movement above the plasma to complete the sealing above the plasma, and fall into the outer collection tank and the inner collection tank respectively; The direction is the initial velocity direction of 37°, and the liquid lithium lead in the inner spray ring pipe is sprayed from the outer and inner spray ring pipes at a speed of 10.8m / s at an initial velocity direction of 22° from the vertical direction. ...

Embodiment 3

[0082] In the EAST device with a plasma major diameter of 1.95m and a minor diameter of 0.49m, the liquid lithium-lead is injected into the upper spray ring pipe and the side spray ring pipe through the injection device, and the support layer cavity of the spray ring pipe and the The height and thickness of the covering layer are 10cm and 0.8cm, respectively, and the liquid lithium-lead moves outward at the speeds of 2.1m / s and 1.5m / s in the direction of the initial velocity at an angle of 55° and 46° to the vertical direction, respectively. and spray inward, and make a curved movement above the plasma to complete the sealing above the plasma, and fall into the outer collection tank and the inner collection tank respectively; The direction is the initial velocity direction of 42°, and the liquid lithium lead in the inner spray ring pipe is sprayed from the outer and inner spray ring pipes at a speed of 12.8m / s at an initial velocity direction of 27° from the vertical direction....

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Abstract

The invention discloses a spray type first liquid-state wall generation device. According to the first liquid-state wall generation device, an upper-portion spray annular pipe, an inner-side spray annular pipe and an outer-side spray annular pipe are respectively arranged above and at the two sides of plasma in a vacuum chamber; an inner-side holding tank, an outer-side holding tank and a lower-portion holding tank are respectively arranged above the inner-side spray annular pipe and the outer-side spray annular pipe and at the bottom of a reactor, liquid-state metal is injected towards the inner side and the outer side from the upper-portion spray annular pipe and falls into the inner-side holding tank and the outer-side holding tank, and such that the upper portion of the plasma is enclosed; at the same time, the liquid-state metal is respectively injected outwards and inwards via the inner-side spray annular pipe and the outer-side spray annular pipe and falls into the low-portion holding tank, such that the lower portion of the plasma is enclosed, and a first liquid-state wall is formed; and finally, the liquid-state metal is drawn out from the reactor so that heat in the reactor is led out, and the apparatus is realized. The spray type first liquid-state wall generation device provided by the invention has the advantages of excellent performance, high safety and reliability and the like.

Description

technical field [0001] The invention relates to the technical field of the first wall of a nuclear reactor, in particular to a spray type first liquid wall generating device. Background technique [0002] The world today faces two major problems: energy and the environment. The innovation, development and progress of science and technology, especially the research, development and construction of sustainable nuclear fusion, will create the possibility to solve these two problems. After nearly half a century of research, a series of achievements have been made in the realization of controllable nuclear fusion. Light nuclear fusion reactions need to satisfy Lawson's criterion, that is, the mathematical product of ion density and confinement time must be greater than a certain threshold, which is a function related to the fusion reaction temperature. Deuterium-tritium fusion is the most possible controlled fusion reaction on the earth, which can release a large amount of ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21B1/13
CPCG21B1/13Y02E30/10
Inventor 陈娟杨旭周涛方晓璐林达平
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)