Sodium-potassium alloy vacuum distillation device

A distillation device and technology of sodium-potassium alloy, which is applied in the field of sodium-potassium alloy vacuum distillation device, can solve the problem that separation equipment is difficult to apply to sodium-potassium alloy vacuum distillation separation, etc., and achieve the solution of vacuum distillation problem, good separation effect and high reliability Effect

Active Publication Date: 2016-03-02
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

[0005] There are few reports at home and abroad on the technology of vacuum distillation to separate the sodium potassium alloy matrix and impurities
And related technologies, such as the vacuum distillation analysis method of oxygen in sodium, the vacuum distillation-ICP-AES analysis method of calcium in nuclear grade sodium, the vacuum ...

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  • Sodium-potassium alloy vacuum distillation device

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Embodiment 1

[0024] The sodium-potassium alloy vacuum distillation device of the present invention is used for vacuum distillation of a sodium-potassium alloy sample (device structure is attached figure 1 As shown), it mainly includes the following steps:

[0025] a. Connect the equipment so that the valves of the sodium-potassium alloy vacuum distillation device are closed;

[0026] b. Turn on the vacuum unit and valves V101, V102, and pump to vacuum -3 Pa; turn on the heating device and keep the vacuum, after a period of time, turn off the heating device;

[0027] c. Close the valves V101 and V102, remove the still and collection tank from V102, and transfer them to the glove box protected by inert gas;

[0028] d. Transfer the sodium-potassium alloy sample to the crucible and place it in the distillation kettle. After sealing, remove the distillation kettle and collection tank out of the glove box, and connect the vacuum unit back at V102;

[0029] e. Open the refrigeration device and valve V201...

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Abstract

The invention relates to a material separation device, aims to solve the problem of analyzing impurity content in sodium-potassium alloy through a vacuum distillation mode and provides a sodium-potassium alloy vacuum distillation device. The sodium-potassium alloy vacuum distillation device comprises a distillation still, a crucible, a collecting tank, a refrigeration device and a vacuum unit, wherein a heating device is arranged at the outer part of the distillation still; the collecting tank is a sealed tank body; the middle part of the collecting tank is communicated with the top part of the distillation still through a pipeline; an inner cooler and an outer cooler are arranged in the collecting tank and both connected with the refrigeration device through a coolant pipeline; and the top part of the collecting tank is connected with the vacuum unit. The sodium-potassium alloy vacuum distillation device has a simpler structure, does not have the backflow phenomenon in the distillation process, has the advantages of small sampling quantity, good separation effect of the sodium-potassium alloy, serving as a matrix, high reliability, convenience, rapidness and safety in operation, economy, practicability and the like and better solves the vacuum distillation problem of the sodium-potassium alloy.

Description

Technical field [0001] The invention relates to a material separation device, in particular to a sodium-potassium alloy vacuum distillation device. Background technique [0002] As a heat exchanger with excellent performance, sodium-potassium alloys are more and more widely used in various fields such as nuclear energy and aerospace. The presence of impurities such as oxygen, carbon, nitrogen, and chlorine in sodium-potassium alloys will affect the heat transfer performance of sodium-potassium alloys, and also adversely affect the mechanical properties, service life and reliability of related equipment. [0003] In actual application, in order to accurately grasp the impurity content in sodium potassium alloy, content analysis is required. However, usually the content of impurities in sodium-potassium alloys is on the order of μg / g, and a large amount of matrix sodium-potassium alloys will seriously interfere with the determination of impurities; at the same time, because sodium-p...

Claims

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Application Information

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IPC IPC(8): C22B9/02C22B26/10
CPCC22B9/02C22B26/10Y02P10/20
Inventor 王密谢淳米争峰董静雅俞晓琛黄文杰贾云腾
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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