Preparation device and preparation method of fused salt reactor liquid fuel

A technology for preparing a device and liquid fuel, applied in the nuclear fuel industry technology and chemical industry, can solve problems such as reports, and achieve the effects of satisfying oxygen tolerance, improving critical safety accidents, and improving oxygen tolerance

Active Publication Date: 2018-12-21
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no reports at home and abroad on the preparation device and prepa

Method used

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  • Preparation device and preparation method of fused salt reactor liquid fuel
  • Preparation device and preparation method of fused salt reactor liquid fuel
  • Preparation device and preparation method of fused salt reactor liquid fuel

Examples

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Comparison scheme
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Example Embodiment

[0028] Example 1

[0029] Such as figure 1 As shown, the molten salt reactor liquid fuel preparation device according to a preferred embodiment of the present invention includes a gas circuit system 1, a molten salt preparation and purification system 2 and an exhaust gas absorption treatment system 3, wherein the gas circuit system 1 is compatible with argon and hydrogen. The flow of the three gases of hydrogen fluoride and hydrogen fluoride is controlled, which is connected to the molten salt preparation and purification system 2 through the inlet passage 4; the molten salt preparation and purification system 2 transfers the liquid molten salt through the gas pressure of argon, and it passes through the outlet passage 5 and the exhaust gas The absorption treatment system 3 is connected; the tail gas absorption treatment system 3 absorbs and retains the hydrogen fluoride tail gas and the tail gas of beryllium and uranium. The gas outlet passage 5 is provided with a heating syste...

Example Embodiment

[0039] Example 2

[0040] The liquid fuel preparation device of the molten salt reactor is the same as in Example 1.

[0041] The preparation method of molten salt reactor liquid fuel firstly includes: mixing powdered 860g lithium fluoride (LiF) and 716.55g beryllium fluoride (BeF) in a ratio of 13:6 by mole. 2 ) Mix well in the glove box 210 and put it into the pre-melting tank 21; turn on the Ar source 12 to pass through the first gas pipeline 14, the air inlet passage 4, the third gas pipeline 25, the fourth gas pipeline 27 and The flow rate of the outlet passage 5 into the pre-melting tank 21 is 150ml·min -1 ·Kg -1 The Ar of molten salt is purged; the temperature adjusting device 29 is turned on to heat the pre-melting tank 21 and the reaction tank 22 to 350°C for 12h heat preservation and baking; then the pre-melting tank 21 and the reaction tank 22 are heated to 600℃ to make the LiF and BeF in the pre-melting tank 21 2 Completely melt to form molten salt; turn on the heating ...

Example Embodiment

[0045] Example 3

[0046] The liquid fuel preparation device of the molten salt reactor is the same as in Example 1.

[0047] The preparation method of the molten salt reactor liquid fuel firstly includes: mixing 52.7g of powdered lithium fluoride (LiF) and 247.3g of uranium tetrafluoride (UF) in a ratio of 72:28 by mole. 4 ) Mix well in the glove box 210 and put it into the pre-melting tank 21; turn on the Ar source 12 to pass through the first gas pipeline 14, the intake passage 4, the third gas pipeline 25, the fourth gas pipeline 27 and The flow rate of the outlet passage 5 into the pre-melting tank 21 is 120ml·min -1 ·Kg -1 The Ar of molten salt is purged; the temperature adjusting device 29 is turned on to heat the pre-melting tank 21 and the reaction tank 22 to 350°C for 12h heat preservation and baking; then the pre-melting tank 21 and the reaction tank 22 are heated to 650℃ to make the LiF and UF in the pre-melting tank 21 4 Completely melt to form molten salt; turn on the...

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Abstract

The invention relates to a preparation device of a fused salt reactor liquid fuel. The preparation device of the fused salt reactor liquid fuel comprises an air circuit system, a fused salt preparation and purification system, and a tail gas absorption treatment system, wherein the air circuit system is used for controlling the flows of argon, hydrogen and hydrogen fluoride; the fused salt preparation and purification system is used for reducing oxide impurities in fused salt through the hydrogen, fluoridizing and deoxidizing the fused salt through hydrogen fluoride, and transferring liquid-state fused salt through the air pressure of the argon; the tail gas absorption treatment system is used for absorbing and retaining hydrogen fluoride tail gas and fused salt tail gas produced through the fused salt preparation and purification system; the air circuit system communicates with the fused salt preparation and purification system through an air inlet channel; the fused salt preparationand purification system communicates with the tail gas absorption treatment system. The invention also relates to a preparation method of the fused salt reactor liquid fuel. The preparation device andthe preparation method provided by the invention can be used for preparing fused salt reactor feeding base salt FLiBeZr and additive salt FLiU with stable Li, Be and Zr components, high purity and low impurity content.

Description

technical field [0001] The invention relates to nuclear fuel industry technology and chemical technology, and more particularly relates to a preparation device and a preparation method of molten salt reactor liquid fuel. Background technique [0002] The molten salt nuclear reactor (Molten Salt Reactor) is currently the only one of the six internationally recognized fourth-generation nuclear energy systems that uses liquid fuel. Its primary circuit uses liquid fluorine salt as fuel, and the secondary circuit coolant also uses liquid fluorine salt. Compared with the third-generation reactor currently in service, its inherent safety is improved due to its operation close to atmospheric pressure; liquid fuel is convenient for on-line nuclear fuel reprocessing to realize the recycling of nuclear fuel; the thermal power density is high, and the core structure is relatively simple. Easy to miniaturize and other advantages. [0003] Molten salt reactor liquid fuel mainly includes ...

Claims

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Application Information

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IPC IPC(8): G21C21/00G21C3/54
CPCG21C3/54G21C21/00Y02E30/30
Inventor 宋昱龙孙斌左勇汪洋王建强谢雷东
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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