A kind of sodium potassium alloy sampling device
A sampling device, sodium-potassium alloy technology, applied in sampling devices, sampling, measuring devices, etc., can solve the problems of low melting point of sodium-potassium alloy, difficulty in applying conventional sampling devices, and no reports of sampling devices, etc. and transfer, easy to disassemble, easy to clean
Active Publication Date: 2018-07-06
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology
However, the extremely active chemical properties of sodium potassium alloy make it very easy to react with air and water, oxygen, carbon dioxide, etc. on the surface of the container to be contaminated. In addition, sodium potassium alloy has a low melting point and is liquid at room temperature, thus causing routine sampling. Devices (such as sodium sampling devices, etc.) are difficult to apply
[0004] At present, for the sampling of sodium potassium alloy, there is no report about its sampling device at home and abroad.
Method used
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Embodiment 1
[0023] Adopt sodium-potassium alloy sampling device of the present invention to carry out sodium-potassium alloy sampling (device structure is as attached figure 1 shown), mainly including the following steps:
[0024] a. Connect the equipment so that all valves of the sodium-potassium alloy sampling device are closed;
[0025] b. Connect the vent port of the pre-drainage tank to the vacuum pump, open the valves V101 and V201, and adjust the valve V301 so that the pipeline between V301 and V302 is connected to the pre-drainage tank, vacuumize to a vacuum degree <1Pa; then fill with argon to 0.05MPa, close valves V101, V201 and V301;
[0026] c. Connect the vent port of the sampling tank to the vacuum pump, open the valves V102 and V202, and evacuate until the vacuum degree is <1Pa; then fill it with argon to 0.05MPa, and close the valves V102 and V202;
[0027] d. Connect the ventilation pipeline to the vacuum pump, open the valve V103, evacuate to a vacuum degree <1Pa, and ...
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Abstract
The invention relates to a sampling device. In order to solve the sampling problem of sodium potassium alloy, the invention provides a sodium potassium alloy sampling device, comprising a predischarge tank, a sampling tank and a filter net type filter; the predischarge tank and the sampling tank are provided with a vent and a liquid inlet respectively; the liquid inlet of the predischarge tank is connected with one connector of a second tee ball valve by a pipeline; the liquid inlet of the sampling tank is connected with another connector of the second tee ball valve by a pipeline; the rest connector of the second tee ball valve is connected with one connector of a first tee ball valve of which another connector is connected with the inlet of the filter net type filter; the rest connector of the first tee ball valve is connected with a sampling pipeline. The sodium potassium alloy sampling device is delicate and concise in structure, safe and reliable to operate, economic and practical, convenient to detach and easy to clean, effectively avoids the influence of a stained sample on a subsequent analysis result and better realizes the obtaining and transferring of a sodium potassium sample.
Description
technical field [0001] The invention relates to a sampling device, in particular to a sodium potassium alloy sampling device. Background technique [0002] The sodium-potassium alloy formed by metal potassium and metal sodium has been widely used in the fields of nuclear science, aerospace science and heat pipes due to its excellent properties in many aspects. 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 will also adversely affect the mechanical properties, service life and reliability of related equipment. [0003] In practical applications, in order to accurately grasp the impurity content in sodium potassium alloy, it is necessary to sample and analyze it. Often, for accurate and reliable analytical results, it is necessary to ensure that the sample taken is free from contamination. However, the extremely active chemical properties of sodium ...
Claims
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IPC IPC(8): G01N1/14G01N1/34
CPCG01N1/1409G01N1/34
Inventor 王密谢淳董静雅米争峰贾云腾俞晓琛
Owner CHINA INSTITUTE OF ATOMIC ENERGY