High-pressure temperature control experiment device for micro laser-Raman spectrum

A technology of laser Raman spectroscopy and experimental equipment, which is applied in the field of high-pressure temperature-controlled experimental equipment for microscopic laser Raman spectroscopy, and can solve problems such as small volume, difficult gas and liquid exchange, and uncontrollable pressure.

Inactive Publication Date: 2011-05-11
QINGDAO INST OF MARINE GEOLOGY
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Problems solved by technology

However, since it cannot control the pressure (only under normal pressure), it can only measure one state of hydrate, and cannot perform in-situ monitoring of hydrate formation and decomposition process
High-pressure capillary quartz tubes can be used for in-situ observation, but since the inner diameter of capillary quartz tubes is only tens of microns, it is diffic

Method used

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  • High-pressure temperature control experiment device for micro laser-Raman spectrum
  • High-pressure temperature control experiment device for micro laser-Raman spectrum
  • High-pressure temperature control experiment device for micro laser-Raman spectrum

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Embodiment Construction

[0013] like figure 1 As shown, the experimental device includes a gas supply system, a pressure sensor, a temperature sensor 1, a reactor 2, a data acquisition unit, and a control unit. The gas supply system is connected to the reactor 2 through a pressure sensor, and the temperature sensor 1 is arranged on the reactor 2. , the pressure sensor and the temperature sensor 1 are respectively connected to the data acquisition unit, the data acquisition unit is connected to the control unit, and the control unit controls the work of the whole device.

[0014] like figure 2 As shown, the reaction kettle 2 includes a sample box 3, the side of the sample box 3 communicates with the intake pipe 4, the upper side of the sample box 3 is provided with a transparent window 5, the lower side of the sample box 3 is provided with a pressure plug 6, and the pressure plug 6 The bottom is provided with semiconductor refrigeration sheet 7, and the periphery of semiconductor refrigeration sheet ...

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Abstract

The invention relates to an experiment device, in particular to a high-pressure temperature control experiment device for a micro laser-Raman spectrum, comprising an air supply device, a pressure sensor, a temperature sensor, a reaction kettle, a data acquisition unit and a control unit, wherein the air supply unit is connected with the reaction kettle through the pressure sensor; the temperature sensor is arranged on the reaction kettle; and the pressure sensor and the temperature sensor are respectively connected with the data acquisition unit which is connected with the control unit. The high-pressure temperature control experiment device takes a small-sized high-pressure reaction kettle as a core, is suitable for the in situ observation of the micro laser-Raman spectrum, can control the temperature and the pressure, can be used for in situ observation of hydrates of depositions in different types and overcomes the defects of the current existing device.

Description

technical field [0001] The invention relates to an experimental device, in particular to a high-pressure temperature-control experimental device for micro-laser Raman spectroscopy. Background technique [0002] Microscopic laser Raman spectroscopy is an advanced microscopic analysis method, which is widely used in the study of material structures in materials, archaeology, and geological inclusions. At present, microscopic laser Raman spectroscopy has been successfully applied to the structure determination of gas hydrates. [0003] Since natural gas hydrate is a product under low temperature and high pressure, it is very unstable at room temperature and easily decomposed. Therefore, when using large-scale instruments such as microscopic laser Raman spectroscopy to determine its structure, it must be ensured that the hydrate will not decompose during the experimental determination. Typically, very low temperatures (-120°C) are required at atmospheric pressure. In addition...

Claims

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Application Information

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IPC IPC(8): G01N21/65G01N21/01
Inventor 业渝光刘昌岭孟庆国程军
Owner QINGDAO INST OF MARINE GEOLOGY
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