CN102954977A - Nuclear magnetic resonance instrument probe auxiliary device for carrying out steam saturation on porous media - Google Patents
Nuclear magnetic resonance instrument probe auxiliary device for carrying out steam saturation on porous media Download PDFInfo
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- CN102954977A CN102954977A CN2012104522961A CN201210452296A CN102954977A CN 102954977 A CN102954977 A CN 102954977A CN 2012104522961 A CN2012104522961 A CN 2012104522961A CN 201210452296 A CN201210452296 A CN 201210452296A CN 102954977 A CN102954977 A CN 102954977A
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Abstract
The invention discloses a nuclear magnetic resonance instrument probe auxiliary device for carrying out steam saturation on porous media. The device comprises a probe tube internally filled with porous media samples, wherein a vacuum pump is connected above the probe tube; a water tank, a saturation device and a heating device are connected under the probe tube; the water tank and the saturation device are heated by the heating device and then convey steam into the probe tube; and the vacuum pump can be used for vacuuming the samples in the probe tube, so that air, liquid and impurities in pores of the samples are cleaned. Compared with a traditional nuclear magnetic resonance core detection device, through saturation of the steam, the problem of insufficiency in saturation of fine pores of the samples is solved. Due to the design of the saturation device, the heating device and the vacuum device connected with a probe, the temperature and a sealing state of the samples in an experiment process are ensured, and the detection precision and the accuracy of nuclear magnetic resonance on the core samples are promoted.
Description
Technical field
The present invention relates to a kind of porous medium be carried out the saturated nuclear magnetic resonance apparatus of water vapour probe corollary apparatus.
Background technology
Coal petrographys etc. are by the porous medium of various organic matters, inorganic mineral and porous dehiscence crack structure, when adopting wherein factor of porosity of magnetic nuclear resonance method research, permeability, saturation degree and distribution of pores situation, need to adopt and conventional magnetic resonance spectroscopy analysis and imaging analysis difference method.Because sample itself do not produce nuclear magnetic signal, the experimenter must find time the gas in the sample hole, liquid and impurity, and injects distilled water and sealing, finish above pre-treatment step after, just can obtain reliable experimental data.
Yet ooze the coal petrography sample for low hole, conventional full water device is difficult to even can not enters in the sample mesoporosity, causes full water incomplete.This can cause the decline of magnetic resonance detection precision.
The present invention recognizes the drawback of above traditional means and equipment, thus adopt the method that sample is continued online saturated vapor, in the hope of realizing the optimum detection effect.
Summary of the invention
The present invention seeks to: provide a kind of porous medium is carried out the saturated nuclear magnetic resonance apparatus probe corollary apparatus of water vapour.
Technical scheme of the present invention is: a kind of porous medium is carried out the saturated nuclear magnetic resonance apparatus of water vapour probe corollary apparatus, it comprises that inside is equipped with the probe pipe of porous medium sample, described probe pipe top is connected with a vacuum pump, described probe pipe below is connected with tank and saturation device and heating arrangement, carries water vapor in the probe pipe after described tank and saturation device are heated by heating arrangement.
Preferably, described vacuum pump vacuumizes outlet conduit by gas and links to each other with the probe pipe, described gas vacuumizes outlet conduit and stretches into probe Guan Zhongyu sample and link to each other, and vacuum pump can vacuumize the inner sample of probe pipe, thereby air, liquid, the impurity of sample hole inside are cleared up.
Preferably, in the described probe pipe organic glass packing material is housed, sample by organic glass packing material fixed position, and guarantees impermeability in the probe pipe in the probe pipe, and described probe pipe outer wall is expected to make by the vacuum insulation foam with effect of heat insulation.
Preferably, vacuumize outlet conduit at the gas between described vacuum pump and described probe pipe and be provided with the first airtight operation valve, probe pipe inside is provided with temperature, pressure transducer, described heating arrangement is connected to probe pipe below by water back, described water back passes tank and saturation device, described tank and saturation device are connected to probe pipe below by the saturated inlet duct of gas, the saturated inlet duct of described gas stretches into probe pipe bottom and is connected with sample, and the saturated inlet duct of described gas is provided with the second airtight operation valve.
Preferably, described heating arrangement heats tank and saturation device by water back, tank and saturation device be heated rear generation water vapor by the saturated inlet duct of gas be transported to the probe pipe in, described heating arrangement can by water back to the probe pipe temperature keep.
Preferably, described probe pipe outer wall is expected to make by the vacuum insulation foam with effect of heat insulation.
Advantage of the present invention is:
1. the present invention compares with traditional core magnetic resonance rock core pick-up unit, has solved the problem of sample micropore desaturation by saturated vapor.
2. the design that saturated, the heating of the present invention, vacuum plant are connected with probe guarantees temperature and the sealing state of sample in the experimentation to have promoted accuracy of detection and the accuracy of nuclear magnetic resonance to core sample.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is the nmr probe corollary apparatus connection diagram of saturated steam;
Fig. 2 is workflow diagram of the present invention.
Wherein: 1, vacuum pump; 2, the first airtight operation valve; 3, permanent magnet; 4, magnet module housing; 5, probe pipe outer wall; 6, organic glass packing material; 7, core sample; 8, the second airtight operation valve; 9, tank and saturation device; 10, heating arrangement; 11, the saturated inlet duct of gas; 12, gas vacuumizes outlet conduit; 13, water back; 14, temperature, pressure transducer.
Embodiment
Embodiment: as shown in Figure 1, the present invention includes probe pipe, vacuum pump 1, tank and saturation device 9 and heating arrangement 10, also comprise the airway passage that connects each module, and airtight valve and temperature, pressure transducer; But do not comprise the permanent magnet 3 of continuing to use nuclear magnetic resonance apparatus, magnet module housing 4 and as the core sample 7 of detected object.
Probe pipe outer wall 5 is selected the vacuum insulation polyfoam.
Be provided with the first airtight operation valve 2 between probe pipe and the vacuum pump 1; The saturated inlet duct 11 of described gas is provided with the second airtight operation valve 8, is provided with temperature, pressure transducer 14 in the probe pipe, meets requirement of experiment in order to guarantee probe pipe internal pressure and temperature.
The principle of work of present embodiment is as follows:
Before the experiment, core sample 7 by organic glass packing material 6 fixed positions, guarantees the impermeability in the probe pipe in sample hose.In experiment utilization process, at first, open the first airtight operation valve 2 of gas outlet, close the second airtight operation valve 8 at place, gas access; Using vacuum pump 1 to pop one's head in vacuumizes in the pipe; Secondly, open the second airtight operation valve 8 at place, gas access, close the first airtight operation valve 2 of gas outlet, use heating arrangement 10 to make the distilled water in tank and the saturation device 9 vaporize, and water vapor poured in the sample hose by the saturated inlet duct 11 of gas, temperature and pressure in the probe pipe that obtains by temperature, pressure transducer 14 determine whether the water vapor in sample 7 cracks reaches capacity.After the water vapour in sample 7 cracks reaches capacity, again close the second airtight operation valve 8 at place, gas access, heating arrangement 10 allows heat by the heat conducting mode of tube metal the temperature of probe pipe be kept by water back 13 is heated; Use nuclear magnetic resonance apparatus that sample 7 is carried out signals collecting; At last, open the first airtight operation valve 2 of gas outlet, repeat said process according to requirement of experiment.
Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (6)
1. one kind is carried out the saturated nuclear magnetic resonance apparatus of water vapour probe corollary apparatus to porous medium, it is characterized in that: it comprises that inside is equipped with the probe pipe of porous medium sample (7), described probe pipe top is connected with a vacuum pump (1), described probe pipe below is connected with tank and saturation device (9) and heating arrangement (10), carries water vapor in the probe pipe after described tank and saturation device (9) are heated by heating arrangement (10).
2. according to claim 1ly a kind of porous medium is carried out the saturated nuclear magnetic resonance apparatus of water vapour probe corollary apparatus, it is characterized in that: described vacuum pump (1) vacuumizes outlet conduit (12) by gas and links to each other with the probe pipe, described gas vacuumizes outlet conduit (12) and stretches into probe Guan Zhongyu sample (7) and link to each other, vacuum pump (1) can vacuumize the inner sample (7) of probe pipe, thereby air, liquid, the impurity of sample (7) hole inside are cleared up.
3. according to claim 1ly a kind of porous medium is carried out the saturated nuclear magnetic resonance apparatus of water vapour probe corollary apparatus, it is characterized in that: organic glass packing material (6) is housed in the described probe pipe, sample (7) the probe pipe in by organic glass packing material (6) fixed position, and guaranteeing the interior impermeability of probe pipe, described probe pipe outer wall is expected to make by the vacuum insulation foam with effect of heat insulation.
4. according to claim 1ly a kind of porous medium is carried out the saturated nuclear magnetic resonance apparatus of water vapour probe corollary apparatus, it is characterized in that: vacuumize outlet conduit (12) and be provided with the first airtight operation valve (2) being positioned at gas between described vacuum pump (1) and the described probe pipe, probe pipe inside is provided with temperature, pressure transducer (14), described heating arrangement (10) is connected to probe pipe below by water back (13), described water back (13) passes tank and saturation device (9), described tank and saturation device (9) are connected to probe pipe below by the saturated inlet duct of gas (11), the saturated inlet duct of described gas (11) stretches into probe pipe bottom and is connected with sample (7), and the saturated inlet duct of described gas (11) is provided with the second airtight operation valve (8).
5. according to claim 4ly a kind of porous medium is carried out the saturated nuclear magnetic resonance apparatus of water vapour probe corollary apparatus, it is characterized in that: described heating arrangement (10) heats tank and saturation device (9) by water back (13), the be heated water vapor of rear generation of tank and saturation device (9) is transported in the probe pipe by the saturated inlet duct of gas (11), and described heating arrangement (10) can be kept the temperature of the pipe of popping one's head in by water back (13).
6. according to claim 1ly a kind of porous medium is carried out the saturated nuclear magnetic resonance apparatus of water vapour probe corollary apparatus, it is characterized in that: described probe pipe outer wall (5) is expected to make by the vacuum insulation foam with effect of heat insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452296.1A CN102954977B (en) | 2012-11-13 | 2012-11-13 | A kind of to porous medium carry out water vapour saturated nuclear magnetic resonance apparatus probe corollary apparatus |
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| CN201210452296.1A CN102954977B (en) | 2012-11-13 | 2012-11-13 | A kind of to porous medium carry out water vapour saturated nuclear magnetic resonance apparatus probe corollary apparatus |
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| CN102954977A true CN102954977A (en) | 2013-03-06 |
| CN102954977B CN102954977B (en) | 2016-02-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344354A (en) * | 2013-07-01 | 2013-10-09 | 大连理工大学 | In-porous-medium fluid temperature visualization measuring device |
| CN103776490A (en) * | 2014-01-13 | 2014-05-07 | 大连理工大学 | Magnetic-resonance imaging method for synchronous measurement of fluid speed and temperature in porous medium |
| CN105973314A (en) * | 2016-07-14 | 2016-09-28 | 河海大学 | Porous medium saturation and non-saturation measurement system and method under surface water level change |
| CN106525887A (en) * | 2016-09-22 | 2017-03-22 | 大连工业大学 | Temperature-changeable low-field nuclear magnetic resonance detecting device |
| CN109540957A (en) * | 2018-12-29 | 2019-03-29 | 北京泓泰天诚科技有限公司 | A kind of Permanent magnetic MR spectrometer |
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| US20070241752A1 (en) * | 2006-03-14 | 2007-10-18 | Thomas Meersmann | Nuclear electric quadrupolar properties of hyperpolarized gases to probe surfaces and interfaces |
| CN202196178U (en) * | 2011-07-29 | 2012-04-18 | 中国海洋石油总公司 | Basket for NMR imaging instrument |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344354A (en) * | 2013-07-01 | 2013-10-09 | 大连理工大学 | In-porous-medium fluid temperature visualization measuring device |
| CN103344354B (en) * | 2013-07-01 | 2015-10-28 | 大连理工大学 | A kind of In-porous-medium fluid temperature visualization measurement mechanism |
| CN103776490A (en) * | 2014-01-13 | 2014-05-07 | 大连理工大学 | Magnetic-resonance imaging method for synchronous measurement of fluid speed and temperature in porous medium |
| CN103776490B (en) * | 2014-01-13 | 2016-03-02 | 大连理工大学 | The MR imaging method of a kind of porous medium fluid velocity inside and temperature synchro measure |
| CN105973314A (en) * | 2016-07-14 | 2016-09-28 | 河海大学 | Porous medium saturation and non-saturation measurement system and method under surface water level change |
| CN106525887A (en) * | 2016-09-22 | 2017-03-22 | 大连工业大学 | Temperature-changeable low-field nuclear magnetic resonance detecting device |
| CN109540957A (en) * | 2018-12-29 | 2019-03-29 | 北京泓泰天诚科技有限公司 | A kind of Permanent magnetic MR spectrometer |
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| CN102954977B (en) | 2016-02-03 |
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Address after: 100000 Haidian District, Xueyuan Road, No. 29, Patentee after: China University of Geosciences (Beijing) Patentee after: SUZHOU NIUMAG ELECTRONIC TECHNOLOGY CO., LTD. Address before: 100000 Haidian District, Xueyuan Road, No. 29, Patentee before: China University of Geosciences (Beijing) Patentee before: Suzhou Niumai Electronics Co., Ltd. |
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Granted publication date: 20160203 Termination date: 20161113 |