Natural gas hydrate experiment reaction kettle device suitable for low-field nuclear magnetic resonance
A low-field nuclear magnetic resonance, nuclear magnetic resonance instrument technology, applied in the chemical/physical/physical chemical process, chemical/physical process, chemical/physical/physical chemical process of applying energy, etc., to ensure uniform magnetic field, ensure accuracy, temperature stabilization effect
Active Publication Date: 2020-08-28
NORTHWEST INST OF ECO-ENVIRONMENT & RESOURCES CAS
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Problems solved by technology
The conditions for the formation of natural gas hydrate are high pressure and low temperature, and the current reactor cannot meet the requirements of using low-field nuclear magnetic resonance. very necessary
Method used
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[0041] Such as Figure 1~3 As shown, a natural gas hydrate experimental reactor device suitable for low-field nuclear magnetic resonance, the device includes a temperature and pressure control system and a ceramic partition with a closed lower end and an open upper end placed in the sample chamber 8 of the low-field nuclear magnetic resonance instrument 6 Thermal sleeve3.
[0042] The outer wall of the ceramic heat insulation sleeve 3 is wrapped with a polytetrafluoroethylene hollow coil 4, and a film 5 made of polytetrafluoroethylene is laid on the polytetrafluoroethylene hollow coil 4; the top of the ceramic heat insulation sleeve 3 is arranged There is a top cover 2, and the top cover 2 is respectively provided with a sample circulation liquid outlet 1 and an air inlet pipe 17; the ceramic heat-insulating sleeve 3 is provided with a sample pipe 7 for placing the experimental sample 13, and the sample pipe 7 communicates with the air inlet pipe 17 The inlet pipe 17 communic...
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Abstract
The invention relates to a natural gas hydrate experiment reaction kettle device suitable for low-field nuclear magnetic resonance. The device comprises a temperature and pressure control system and aceramic heat insulation sleeve arranged in a sample cavity in a low-field nuclear magnetic resonance instrument. A polytetrafluoroethylene hollow coil pipe is wound on the outer wall of the ceramic heat insulation sleeve, and a thin film is laid on the polytetrafluoroethylene hollow coil pipe; a top cover is arranged at the top of the ceramic heat insulation sleeve; a sample circulating liquid outlet and an air inlet pipe are respectively arranged on the top cover; a sample pipe communicated with the air inlet pipe is arranged in the ceramic heat insulation sleeve; the air inlet pipe is communicated with a sample pipe; a connecting piece is connected with the top cover; a bottom cover is arranged at the bottom of the ceramic heat insulation sleeve; sample circulating liquid inlets are formed in the bottom cover and a supporting piece; a sample circulating liquid circulating cavity is formed among the sample pipe, the ceramic heat insulation sleeve, the supporting piece, the top coverand the connecting piece; and a platinum resistor temperature probe is arranged in the sample circulating liquid circulating cavity and is connected with a temperature and pressure control system. Thecontradictory relationship between a high-temperature magnet and a low-temperature sample is solved.
Description
technical field [0001] The invention relates to the technical fields of basic research on natural gas hydrate and exploration and production of natural gas hydrate, in particular to a natural gas hydrate experimental reactor device suitable for low-field nuclear magnetic resonance. Background technique [0002] Natural gas hydrate (Natural Gas Hydrate) is an ice-like solid substance composed of one or several hydrocarbon gas molecules and water molecules under the condition of low temperature and high pressure. It is a cage crystal compound with a non-fixed stoichiometry. Natural gas hydrates are widely distributed in terrestrial permafrost and continental margins in sediments at a depth of 0–1100 m below the seabed. This is a new type of potential energy, with a global resource of 2.1×1015m 3 , is twice the total amount of coal, oil and natural gas resources, and has considerable development prospects. All countries in the world attach great importance to the investigatio...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01J19/08B01J19/00
CPCB01J19/00B01J19/087
Inventor 展静吴青柏邓友生张鹏张莲海
Owner NORTHWEST INST OF ECO-ENVIRONMENT & RESOURCES CAS