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Online sampling method and online sampler

A sampler and vacuum tube technology, applied in the field of online sampling methods and online samplers, can solve the problems of inability to sample online in real time, and achieve the effect of simple operation

Inactive Publication Date: 2014-11-19
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to overcome the defect that the molten salt collection equipment in the prior art cannot take real-time online sampling, and provides a simple and easy online sampling method and an online sampler

Method used

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  • Online sampling method and online sampler

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the online sampler in this embodiment includes a sampling push rod 1 , a vacuum tube 2 and a vacuum ball valve 3 . The vacuum ball valve 3 includes a first port 301 and a second port 302 connected thereto. One end of the vacuum tube 2 communicates with the first port 301 , and the other end of the vacuum tube 2 is a closed end. The sampling push rod 1 extends into the vacuum tube 2 from the closed end of the vacuum tube 2 , passes through the vacuum ball valve 3 and then protrudes out from the second port 302 . An exhaust port 201 is provided on the vacuum tube 2, and the closed end of the sampling push rod 1 and the vacuum tube 2 is connected by a dynamic sealing structure. The rod end protruding from the second port 302 of the sampling push rod 1 is also connected with a sampling crucible 101 .

Embodiment 2

[0026] Such as figure 2 As shown, the FLiNaK eutectic salt with a melting point exceeding 450°C continuously flows into the high-temperature molten salt storage chamber 6 through the molten salt pipeline 5, and the online sampler of Example 1 can be used to perform online sampling of the continuously dripping molten salt at any time . Such as figure 1 As shown, first, the vacuum ball valve 3 of the online sampler is in a closed state, the sampling push rod 1 and the sampling crucible 101 are all in the vacuum tube 2, and the vacuum tube 2 is evacuated by a vacuum pump through the exhaust port 201 on the vacuum tube 2; then the vacuum is turned on The ball valve 3 makes the vacuum tube 2 at room temperature communicate with the high-temperature molten salt storage cavity 6, pushes the sampling push rod 1, and extends the sampling crucible 101 into the high-temperature molten salt storage cavity 6 to receive the latest fluorine salt sample After receiving more than about 1g o...

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PUM

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Abstract

The invention provides an online sampling method and an online sampler. The online sampling method is executed by using the online sampler. The online sampler comprises a vacuum ball valve, a vacuum tube, a sampling push rod and a sampling crucible, wherein the vacuum ball valve comprises a first end opening and a second end opening which are communicated with each other; one end of the vacuum tube is communicated with the second end opening and the other end of the vacuum tube is a closed end; the sampling push rod extends into the vacuum tube from the closed end of the vacuum tube and extends out of the first end opening after passing through the vacuum ball valve; the sampling crucible is connected with the rod end, extending out of the first end opening, of the sampling push rod; the first end opening is communicated with an equipment cavity to be sampled. The online sampling method provided by the invention is simple and rapid to operate, does not interfere with the normal operation of sampled equipment and does not disturb the working atmosphere inside the sampled equipment.

Description

technical field [0001] The invention relates to an online sampling method and an online sampler. Background technique [0002] Molten salt is a high-temperature melt composed of metal cations and non-metal anions. It has the characteristics of good thermal stability, low vapor pressure, low viscosity, good electrical conductivity and large heat capacity. Therefore, molten salt is used in nuclear energy fields such as dry reprocessing and molten salt reactors. [0003] With the proposal and development of advanced nuclear energy systems such as fast reactors and molten salt reactors, the closely related dry reprocessing technology has attracted more and more research and attention from various countries. In various dry reprocessing processes, it is often necessary to The liquid molten salt in the equipment is sampled and analyzed in real time. [0004] In the existing sampling technology, the molten salt in the equipment is generally randomly sampled, and the molten salt co...

Claims

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Application Information

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IPC IPC(8): G01N1/14
Inventor 窦强付海英杨洋耿俊霞王子豪李晴暖
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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