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Radioactive liquid sampling device and sampling method

A liquid sample and sampling device technology, applied in the field of analysis and testing, to achieve the effects of convenient operation, slowing down the leakage of sampling points, and strong applicability

Inactive Publication Date: 2019-01-04
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the defects existing in the prior art, the object of the present invention is to provide a radioactive liquid sample sampling device and a sampling method, which reduces the impact on the sealing of the sampling point system due to multiple connections between the sampling device and the sampling point, thereby slowing down the Problems with leaking sampling points due to multiple connections

Method used

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  • Radioactive liquid sampling device and sampling method

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] like figure 1 As shown, the present invention provides a radioactive liquid sample sampling device, which includes a barrel body 7 with a piston structure; the piston chamber of the barrel body 7 is connected to two sample taking and delivery mechanisms. The sampling and delivery mechanism includes a transitional connection body 9, a needle tube 11 and a needle valve 10 for controlling on-off of liquid in the needle tube 11; the transitional connection body 9 is connected to the piston chamber. The barrel body 7 is provided with a through hole at a position close to the transition connecting body 9, and the through hole extends away from the piston chamber to form a hollow cylinder with external threads on the outer surface; the hollow cylinder and the transition connecting body 9 by threaded connection. Specifically, the piston structure inc...

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Abstract

The invention relates to a radioactive liquid sampling device which comprises a cylinder with a piston structure. A piston cavity of the cylinder is connected with two sample taking and feeding mechanisms. The invention further provides a radioactive liquid sampling method. A sampling point and a sampling bottle are simultaneously connected with the piston cavity, and a sample is transferred between the sampling point and the sampling bottle through movement of a piston. The device has the advantages that the sampling point and the sampling bottle are simultaneously connected with the piston cavity, the sample is transferred through movement of the piston, the influence on sealing of a sampling point system caused by repeated connection between the sampling device and the sampling point isreduced, so that the problem of leakage of the sampling point caused by repeated connection is relieved, the device is simple in structure, convenient and safe to operate and high in applicability, redundant samples can be injected into the sampling point system, and waste is avoided.

Description

technical field [0001] The invention belongs to the technical field of analysis and testing, and in particular relates to a radioactive liquid sample sampling device and a sampling method. Background technique [0002] In nuclear-related process systems, it is often necessary to sample and analyze radioactive liquid samples from towers, tanks, and pipelines in order to monitor the safe and stable operation of the process system. Due to the particularity (radioactivity) of the sample, in order to avoid certain impact on the body of the sampler and the surrounding environment, it is necessary to control the low leakage rate of the sampler and the sampling position and to effectively deal with the redundant samples. [0003] At present, the commonly used radioactive liquid samplers are ordinary syringes. The sampling point is often sealed with a nut with a soft silicone gasket inside. After repeated sampling, the sampling point is prone to certain leakage, and the soft silicone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14
CPCG01N1/14
Inventor 祝刘正吴展华岳维宏
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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