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In-situ Raman observation high-pressure kettle

An in-situ Raman and autoclave technology, applied in Raman scattering, measuring devices, instruments, etc., can solve the problems that the safety cannot be guaranteed, the long-term corrosion test conditions cannot be met, and the test temperature cannot exceed 350°C. It achieves the effects of good high temperature water corrosion resistance and pressure resistance, Raman signal transmission performance, complete functions and wide application value

Active Publication Date: 2017-08-04
STATE POWER INVESTMENT CORP RES INST +1
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Problems solved by technology

However, this autoclave still cannot meet the requirements of long-term corrosion test conditions (> 3 days), and the test temperature cannot exceed 350°C, and the safety during the test cannot be guaranteed.

Method used

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  • In-situ Raman observation high-pressure kettle

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Embodiment Construction

[0035] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements. In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

[0036] figure 1 It is a schematic diagram of an autoclave for in-situ Raman observation according to an embodiment of the present invention. As shown in the figure, the in-situ Raman observation autoclave includes: autoclave body 1, observation channel 2, window 3, relief valve 4, cooling water jacket 5, pressure-resistant valve (b...

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Abstract

The invention provides an in-situ Raman observation high-pressure kettle. The in-situ Raman observation high-pressure kettle comprises a high-pressure kettle body (1), an observation pore channel (2), a window (3), a test sample holder (9) and a lens (7), wherein a kettle cavity (S) is limited by the high-pressure kettle body (1); one end of the observation pore channel (2) is arranged on a side wall of the high-pressure kettle body (1), is communicated with the high-pressure kettle body (1) and is used for leading in and leading out Raman laser; the window (3) is arranged at the other end of the observation pore channel (2) and is in sealing connection with the observation pore channel (2); the test sample holder (9) is arranged in the high-pressure kettle body (1); the lens (7) and the observation pore channel (2) are coaxially arranged in the high-pressure kettle body (1). The invention provides the in-situ Raman observation high-pressure kettle which is safe and reliable and can be used for carrying out long-period and continuous in-situ Raman measurement.

Description

technical field [0001] The invention relates to the field of nuclear power material corrosion research, in particular to an in-situ Raman observation autoclave. Background technique [0002] Nuclear power materials are in high temperature and high pressure water environment for a long time, and the corrosion of materials is a key factor affecting the safe operation of nuclear power plants. At present, the characterization methods for the corrosion of nuclear power materials in high-temperature and high-pressure water mainly focus on ex-situ characterization methods, such as scanning electron microscopy, corrosion weighing and other technical means to obtain the corrosion state. There are many disadvantages in the ex-situ characterization method: for example, the sample needs to be cooled, removed from the autoclave, exposed to the air, etc., and the surface oxide film may have changed; it cannot simultaneously reflect the evolution of the oxide film over time, etc. Taking t...

Claims

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Application Information

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IPC IPC(8): G01N21/65
CPCG01N21/65G01N2021/651
Inventor 汪峰
Owner STATE POWER INVESTMENT CORP RES INST
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