Lead-bismuth alloy melting device and loading, melting and unloading method thereof
A lead-bismuth alloy and melting material technology, applied in the field of nuclear reactors, can solve the problems of high density, affecting system safety and system life, and impact of melting material device, etc., to achieve the effects of alleviating impact, meeting air isolation requirements, and effective heating and melting ability.
Inactive Publication Date: 2020-09-18
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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Problems solved by technology
Due to the high density of the lead-bismuth alloy, the rolling and feeding process of the lead-bismuth solid ingot will have an impact on the melting device, seriously affecting the safety and life of the system
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[0027] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but only to illustrate the essence of the technical solutions of the present invention.
[0028] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner" and "outer" are based on those shown in the accompanying drawings. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation,...
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The invention relates to a lead-bismuth alloy melting device and a loading, melting and unloading method thereof, wherein the device comprises a molten material container which is a closed cylinder, afeeding pipe and a wedge-shaped transition block; the feeding pipe obliquely penetrates through the molten material container from the lateral upper part of the molten material container and extendsinto the molten material container, and the discharging end of the feeding pipe is positioned at the oblique upper part of the bottom of the molten material container; the wedge-shaped transition block is arranged on the inner wall of the bottom of the molten material container, one end of the wedge-shaped transition block is connected with the discharging end of the feeding pipe, the other end ofthe wedge-shaped transition block is tangent to the inner wall of the bottom of the molten material container, and a smooth transition curved surface is formed between the wedge-shaped transition block and the inner wall of the bottom of the molten material container. According to the invention, the impact of a lead-bismuth ingot on a cylinder body in the lead-bismuth feeding process can be effectively relieved, the effective heating and melting capability on solid or solid-liquid coexisting lead-bismuth alloy is realized, and the air isolation requirement in the melting process can be met.
Description
technical field [0001] The invention relates to the field of nuclear reactors, in particular to a lead-bismuth alloy melting device for melting solid lead-bismuth alloy into liquid lead-bismuth alloy and methods for charging, melting and unloading. Background technique [0002] At present, in nuclear reactors that use liquid lead-bismuth alloys as coolants, before the coolant is filled into the nuclear reactor, the lead-bismuth alloy needs to be heated and melted from a solid state to a liquid state, while industrially produced solid lead-bismuth alloys are mostly A cylindrical spindle with a certain volume and weight. Due to the high density of the lead-bismuth alloy, the rolling and feeding process of the lead-bismuth solid ingot will have an impact on the melting device, seriously affecting system safety and system life. Simultaneously, since the lead-bismuth alloy in the solid state is in the melting material device during the initial charging, the melting material devi...
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IPC IPC(8): B01J6/00B01J4/00
CPCB01J6/00B01J4/001
Inventor 朱彦雷顾龙唐延泽秦长平范旭凯盛鑫刘璐彭天骥王大伟于锐李金阳张璐田旺盛姜韦姚存峰张宏鹏孟海燕范德亮李秀凌
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI