CN203785981U - Static volumetric method based automatic adsorption measuring device - Google Patents
Static volumetric method based automatic adsorption measuring device Download PDFInfo
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- CN203785981U CN203785981U CN201420108805.3U CN201420108805U CN203785981U CN 203785981 U CN203785981 U CN 203785981U CN 201420108805 U CN201420108805 U CN 201420108805U CN 203785981 U CN203785981 U CN 203785981U
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000003068 static effect Effects 0.000 title claims abstract description 18
- 238000001179 sorption measurement Methods 0.000 title abstract description 5
- 239000007789 gas Substances 0.000 claims abstract description 31
- 239000002156 adsorbate Substances 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 239000011261 inert gas Substances 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims description 30
- 230000007246 mechanism Effects 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 abstract description 15
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007872 degassing Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 4
- 239000002086 nanomaterial Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model provides a static volumetric method based automatic adsorption measuring device. The device comprises an adsorbate gas storage device, a vacuumizing pipeline, a gas inlet pipeline, a vacuum pump, a constant temperature tank and sample pools, wherein the adsorbate gas storage device is connected with one end of the gas inlet pipeline; one end of the vacuumizing pipeline is connected with the inert gas storage device; the other end of the vacuumizing pipeline, the other end of the gas inlet pipeline and the sample pools are connected via three-way valves; the vacuum pump is connected with the vacuumizing pipeline and the gas inlet pipeline respectively; the sample pools are arranged inside the constant temperature tank. The device has the beneficial effects that by connecting the vacuumizing pipeline, the gas inlet pipeline and the sample pools together via the three-way valves, the sample pools can be not removed in the whole testing process, and the sample heating and degassing processes and the gas adsorption process are directly controlled via corresponding control valves, thus simplifying the operating steps and improving the work efficiency; besides, contact between the samples and the air is avoided, thus improving the accuracy of the test results.
Description
Technical field
The utility model relates to nano material specific surface area and porosity measurement analysis technical field, refers to especially a kind of static capacity method automatic absorbing measurement mechanism.
Background technology
At present, in nano material specific surface area and porosity measurement analyser, the part of most critical is static capacity method automatic absorbing measurement mechanism, this device mainly comprises heat de-airing pre-service mechanism and the constant temperature cryosorption mechanism of sample, in traditional static capacity method automatic absorbing measurement mechanism, heat de-airing pre-service mechanism and constant temperature cryosorption mechanism are two independent pipelines, as shown in Figure 1.
During work, first the sample cell that nano material sample is housed is connected to the pipeline terminal of heat de-airing pre-service mechanism, 11 pairs of sample cell 10 of pre-service well heater heat, vacuum pump 7 constantly produces heated sample in pipeline simultaneously impurity and gas are extracted out, above-mentioned heat de-airing process generally will continue several hours, heat de-airing is complete, need to carry out cooling to sample, then in the pipeline of this heat de-airing pre-service mechanism, pass into inert gas, such as helium, make to recover in sample cell 10 conventional atmospheric value; Afterwards sample cell 10 is disassembled from the pipeline terminal of heat de-airing pre-service mechanism, install to the pipeline terminal of adsorbing mechanism, by vacuum pump 7, the pipeline of adsorbing mechanism is evacuated again afterwards, immerse afterwards in low temperature thermostat bath 9, pass into afterwards adsorbate gas, the sample in sample cell 10 carries out the absorption of adsorbate gas in the low temperature environment of calibration cell again.
The above-mentioned whole course of work is more loaded down with trivial details, and the running time is also long.Need staff carefully to operate, in this process, should avoid sample open-assembly time in air long as far as possible, in order to avoid the impurity in sample absorbed air is polluted, affect the degree of accuracy of test result.But owing to needing in this process that sample cell is disassembled from the pipeline terminal of heat de-airing pre-service mechanism; and be installed to the pipeline terminal of adsorbing mechanism; although there is inert gas protection sample top, is also subject to unavoidably the pollution of impurity in air, causes test result out of true.Therefore, in the urgent need to the accurate static capacity method of a kind of test result automatic absorbing measurement mechanism.
Utility model content
The utility model proposes a kind of static capacity method automatic absorbing measurement mechanism, solved complex operation in prior art, the coarse problem of test result.
The technical solution of the utility model is achieved in that
A static capacity method automatic absorbing measurement mechanism, comprising: adsorbate gas reservoir, vacuum-pumping pipeline, air inlet pipeline, vacuum pump, calibration cell and sample cell; Described adsorbate gas reservoir is connected with one end of described air inlet pipeline, and one end of described vacuum-pumping pipeline is connected with inert gas storage device; Between the other end of described vacuum-pumping pipeline, the other end of described air inlet pipeline and described sample cell, by T-valve, be connected; Described vacuum pump is connected with described vacuum-pumping pipeline, described air inlet pipeline respectively; It is inner that described sample cell is positioned at described calibration cell.
Described vacuum-pumping pipeline is provided with the anti-filtrator that splashes.
Described anti-described vacuum-pumping pipeline of splashing between filtrator and described vacuum pump is provided with the first operation valve and pre-service pressure transducer.
Described air inlet pipeline between described adsorbate gas reservoir and described vacuum pump is provided with the second operation valve, the 3rd operation valve and test pressure sensor.
Described the first operation valve, the second operation valve and the 3rd operation valve are solenoid electric valve.
Principle of work of the present utility model is as follows:
Calibration cell below sample cell is disassembled, change pre-service well heater into, close the second operation valve and the 3rd operation valve, open the first operation valve, open vacuum pump, when pre-service well heater heats the sample to be tested in sample cell, vacuum pump is constantly taken the foreign gas in vacuum-pumping pipeline away simultaneously, until the registration of pre-service pressure transducer shows in vacuum-pumping pipeline, reach desirable vacuum state, taken off pre-service well heater.
Then close the first operation valve and vacuum-pumping pipeline, and open the 3rd operation valve and air inlet pipeline, after being vacuumized, air inlet pipeline closes the 3rd operation valve, sample cell is immersed in constant temperature cryostat,, open again the second operation valve, allow the adsorbate gas in adsorbate gas reservoir pass in sample cell along air inlet pipeline, sample to be tested product adsorbed gas in sample cell, test pressure sensor detects the force value in each stage in adsorption process simultaneously, and the data that final basis obtains are carried out the calculating of test result.
The above-mentioned anti-filtrator that splashes can prevent that in pre-service heat de-airing process, sample to be tested is taken away by vacuum pump by vacuum-pumping pipeline.
Air inlet pipeline and vacuum-pumping pipeline can be all some stainless-steel vacuum pipes.
The beneficial effects of the utility model are:
By vacuum-pumping pipeline, air inlet pipeline are connected together by T-valve with sample cell, and corresponding operation valve is set on pipeline, can realize and in whole test process, not dismantle sample cell, directly by corresponding operation valve, carry out the control of sample heat de-airing process and gas absorption process, simplify operation steps, improved work efficiency; In addition, avoid contacting of sample and air, reduced error factor and link, improved overall accuracy and the reappearance of instrument.
While effectively having avoided shared vacuum system, the gaseous impurities Contamination measurement analytic system of heat de-airing, when effectively reducing instrument manifold volume, has improved the accuracy of test result.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the static capacity method automatic absorbing measurement mechanism described in background technology;
Fig. 2 is the structural representation of static capacity method automatic absorbing measurement mechanism described in the utility model.
In figure:
1, adsorbate gas reservoir, 2, vacuum-pumping pipeline, 3, air inlet pipeline, 4, the first operation valve, the 5, second operation valve, the 6, the 3rd operation valve, 7, vacuum pump, 8, T-valve, 9, calibration cell, 10, sample cell, 11, pre-service well heater, 12, pre-service pressure transducer, 13, test pressure sensor, 14, the anti-filtrator that splashes.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment is as shown in Figure 2 known, and a kind of static capacity method automatic absorbing measurement mechanism described in the utility model, comprising: adsorbate gas reservoir 1, vacuum-pumping pipeline 2, air inlet pipeline 3, vacuum pump 7, calibration cell 9 and sample cell 10; Adsorbate gas reservoir 1 is connected with one end of air inlet pipeline 3, and one end of vacuum-pumping pipeline 2 is connected with inert gas storage device; Between the other end of the other end of vacuum-pumping pipeline 2, air inlet pipeline 3 and sample cell 10, by T-valve 8, be connected; Vacuum pump 7 is connected with vacuum-pumping pipeline 2, air inlet pipeline 3 respectively; Sample cell 10 is positioned at described calibration cell 9 inside.
Described vacuum-pumping pipeline 2 is provided with the anti-filtrator 14 that splashes.
Described anti-vacuum-pumping pipeline 2 of splashing between filtrator 14 and vacuum pump 7 is provided with the first operation valve 4 and pre-service pressure transducer 12.
Air inlet pipeline 3 between described adsorbate gas reservoir 1 and vacuum pump 7 is provided with the second operation valve 5, the 3rd operation valve 6 and test pressure sensor 13.
Described the first operation valve 4, the second operation valve 5 and the 3rd operation valve 6 are solenoid electric valve.
Utilize above-mentioned static capacity method automatic absorbing measurement mechanism to carry out the course of work that the specific surface area of nano material and porosity measurement analyze as follows:
Sample cell 10 calibration cell 9 is below disassembled, change pre-service well heater 11 into, close the second operation valve 5 and the 3rd operation valve 6, open the first operation valve 4, open vacuum pump 7, when the sample to be tested in 11 pairs of sample cell 10 of pre-service well heater heats, vacuum pump 7 is constantly taken the foreign gas in vacuum-pumping pipeline 2 away simultaneously, until the registration of pre-service pressure transducer 12 shows in vacuum-pumping pipeline 2, reach desirable vacuum state, taken off pre-service well heater.
Then close the first operation valve and vacuum-pumping pipeline 2, and open the 3rd operation valve 6 and air inlet pipeline 3, after being vacuumized, air inlet pipeline 3 closes the 3rd operation valve 6, sample cell 10 is immersed in constant temperature cryostat, 9, open again the second operation valve 5, allow the adsorbate gas in adsorbate gas reservoir 1 pass in sample cell 10 along air inlet pipeline 3, sample to be tested product adsorbed gas in sample cell 10, the force value in each stage in 13 pairs of adsorption processes of test pressure sensor detects simultaneously, and the data that final basis obtains are carried out the calculating of test result.
The above-mentioned anti-filtrator 14 that splashes can prevent that in pre-service heat de-airing process, sample to be tested is taken away by vacuum pump 7 by vacuum-pumping pipeline 2.
In sum, the utility model is by connecting together with sample cell vacuum-pumping pipeline, air inlet pipeline by T-valve, and corresponding operation valve is set on pipeline, can realize and in whole test process, not dismantle sample cell, directly by corresponding operation valve, carry out the control of sample heat de-airing process and gas absorption process, simplify operation steps, improved work efficiency; In addition, avoid contacting of sample and air, improved the accuracy of test result.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a static capacity method automatic absorbing measurement mechanism, is characterized in that, comprising: adsorbate gas reservoir (1), vacuum-pumping pipeline (2), air inlet pipeline (3), vacuum pump (7), calibration cell (9) and sample cell (10); Described adsorbate gas reservoir (1) is connected with one end of described air inlet pipeline (3), and one end of described vacuum-pumping pipeline (2) is connected with inert gas storage device; Between the other end of the other end of described vacuum-pumping pipeline (2), described air inlet pipeline (3) and described sample cell (10), by T-valve (8), be connected; Described vacuum pump (7) is connected with described vacuum-pumping pipeline (2), described air inlet pipeline (3) respectively; Described sample cell (10) is positioned at described calibration cell (9) inside.
2. a kind of static capacity method automatic absorbing measurement mechanism according to claim 1, is characterized in that, described vacuum-pumping pipeline (2) is provided with the anti-filtrator (14) that splashes.
3. a kind of static capacity method automatic absorbing measurement mechanism according to claim 2, it is characterized in that, described anti-described vacuum-pumping pipeline (2) of splashing between filtrator (14) and described vacuum pump (7) is provided with the first operation valve (4) and pre-service pressure transducer (12).
4. a kind of static capacity method automatic absorbing measurement mechanism according to claim 3, it is characterized in that, the described air inlet pipeline (3) between described adsorbate gas reservoir (1) and described vacuum pump (7) is provided with the second operation valve (5), the 3rd operation valve (6) and test pressure sensor (13).
5. a kind of static capacity method automatic absorbing measurement mechanism according to claim 4, is characterized in that, described the first operation valve (4), the second operation valve (5) and the 3rd operation valve (6) are solenoid electric valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108805.3U CN203785981U (en) | 2014-03-11 | 2014-03-11 | Static volumetric method based automatic adsorption measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108805.3U CN203785981U (en) | 2014-03-11 | 2014-03-11 | Static volumetric method based automatic adsorption measuring device |
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| CN203785981U true CN203785981U (en) | 2014-08-20 |
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| CN201420108805.3U Expired - Fee Related CN203785981U (en) | 2014-03-11 | 2014-03-11 | Static volumetric method based automatic adsorption measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852397A (en) * | 2014-03-11 | 2014-06-11 | 王玉 | Automatic adsorption measuring device by virtue of static volumetric method |
| CN104990833A (en) * | 2015-04-17 | 2015-10-21 | 南京市产品质量监督检验院 | Gas absorbing volume detector and detecting method |
| CN108444858A (en) * | 2018-06-20 | 2018-08-24 | 贝士德仪器科技(北京)有限公司 | Dynamic and static double mode gravimetric method vapor sorption instrument |
-
2014
- 2014-03-11 CN CN201420108805.3U patent/CN203785981U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852397A (en) * | 2014-03-11 | 2014-06-11 | 王玉 | Automatic adsorption measuring device by virtue of static volumetric method |
| CN104990833A (en) * | 2015-04-17 | 2015-10-21 | 南京市产品质量监督检验院 | Gas absorbing volume detector and detecting method |
| CN108444858A (en) * | 2018-06-20 | 2018-08-24 | 贝士德仪器科技(北京)有限公司 | Dynamic and static double mode gravimetric method vapor sorption instrument |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING ZHONGKE HUIYU TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WANG YU Effective date: 20150319 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 629300 SUINING, SICHUAN PROVINCE TO: 100000 HAIDIAN, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150319 Address after: 100000 Twin Towers in Beijing City, Haidian District Town Village No. 392 Patentee after: Beijing Zhongke Hui Yu Technology Co., Ltd. Address before: 629300 No. 35 South Street, Penglai Town, Daying County, Sichuan, Suining Patentee before: Wang Yu |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20170311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |