Liquid heavy metal loop sampling device and using method thereof
A technology of liquid heavy metal and sampling device, applied in sampling device, sampling, measuring device and other directions, can solve the problems of inability to obtain the distribution of impurities in liquid metal coolant, inconvenient sample preparation, etc., and achieve the effect of good mechanical performance and cost saving.
Pending Publication Date: 2021-02-09
BAISE UNIV
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Problems solved by technology
At present, the main sampling method is to take irregular samples through the sampling tank for analysis, determine the dissolved and corroded elements in the coolant through component analysis, and determine the size and type of impurities through the sample cross-section scanning electron microscope analysis, but there are The sample preparation is inconvenient, and the sampling is mainly for the loop, and it is impossible to obtain the distribution of liquid metal coolant impurities at different heights in the storage tank
Method used
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[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right" etc. are based on the Orientation or positional relationship is only for the convenience of describing the present application 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, and thus should not be construed as limiting the present application.
[0031] Such as Figure 1-3 As shown, a liquid heavy metal circuit sampling device includes a sampling pipe 1, a flange 2, a cooling pipe 3, a cooling water inlet 4, a cooling water outlet 5, a liner 6, a liner plug 7, a thermocouple 8, a method Lan two 9, pipeline one 10, valve one 11, flange three 12, liquid storage tank 13, gas pipeline 14, gas valve 15, pipeline two 16 and valve two 17.
[0032] ...
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The invention provides a liquid heavy metal loop sampling device. The device comprises a sampling pipeline, wherein an upper end of the sampling pipeline is sealed by a flange I, a cooling pipe is arranged at the upper half part of the outer wall of the sampling pipeline, and a thermal insulation layer is arranged outside an outer wall of the lower half part of the sampling pipeline; a liner pipeis arranged in the sampling pipeline, and an upper end of the liner pipe is sealed by a liner pipe plug; a lower end of the sampling pipeline is connected with an upper end of a pipeline I; a lower end of the pipeline I communicates with a liquid storage tank; the side part of the pipeline I is communicated with one end of a pipeline II, and the other end of the pipeline II is connected into the loop low-temperature area; heating wires are wound outside the first pipeline, the liquid storage tank and the second pipeline, and the heating wires are wrapped with heat preservation layers. According to the liquid heavy metal loop sampling device, samples in a loop in operation can be obtained in real time, samples in the loop storage tank can also be obtained, and the impurity content and typesin a liquid metal coolant after the loop operates for different time can be comprehensively reflected. The invention also provides a use method of the sampling device.
Description
technical field [0001] The invention belongs to the technical field of liquid heavy metal circuits, and in particular relates to a liquid heavy metal circuit sampling device and a use method thereof. Background technique [0002] Because of its low melting point, high boiling point, excellent neutronic properties, and good thermal conductivity, PbBi alloy has become the first choice for liquid metal reactor coolants, and extensive research has been carried out worldwide. Liquid metal coolant will corrode structural materials during operation, resulting in impurities. The corrosion methods include dissolution corrosion, oxidation corrosion and erosion corrosion. The liquid metal circuit is a large-scale pre-research platform for reactor technology research and verification, and the liquid metal circuit itself is also a part of the reactor. The corrosion test circuit is generally an 8-shaped circuit, which is divided into a hot zone and a cold zone by the heat exchanger. , th...
Claims
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Login to View More IPC IPC(8): G01N1/20
CPCG01N1/2035G01N2001/205
Inventor 徐敬尧周小丽史兵方孙敬会伊家飞
Owner BAISE UNIV