CN204405475U - A kind of extra-high Sorption Analyzer - Google Patents
A kind of extra-high Sorption Analyzer Download PDFInfo
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- CN204405475U CN204405475U CN201520064375.4U CN201520064375U CN204405475U CN 204405475 U CN204405475 U CN 204405475U CN 201520064375 U CN201520064375 U CN 201520064375U CN 204405475 U CN204405475 U CN 204405475U
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Abstract
The utility model discloses a kind of extra-high Sorption Analyzer, comprises sample cell, constant temperature oven, master controller, accumulator still, cylinder manifold, a PID temperature controller, the 2nd PID temperature controller, PID pressure regulator valve, well heater, computer and vacuum pump.The circuit design that employing of the present utility model is rationally distributed and the Automation Design, make extra-high Sorption Analyzer of the present utility model can be efficient, robotization measures mud shale extra-high (reaching as high as 70MPa) adsorbance, and instrument bearing pressure can reach 70MPa, working temperature room temperature to 400 DEG C.
Description
Technical field:
The utility model belongs to high temperature and high pressure gas absorption research, the shale gas development technique fields such as the unconventional petroleum resources such as shale gas, coal-seam gas evaluation study, are specifically related to a kind of extra-high Sorption Analyzer measured mud shale extra-high (reaching as high as 70MPa) adsorbance.
Background technology:
Shale gas and coal-seam gas are the focuses of unconventional energy resource exploitation in recent years, and in hydrocarbon gas in shale gas and coal-seam gas, adsorbed state proportion is very large.In mud shale sample and coal sample, the adsorption isothermal of hydrocarbon gas measures problem is the key issue that research coal-seam gas, shale gas supporting environment, gas-bearing property and resource potential are evaluated.
The general depth of burial of mud shale in shale gas potential distribution district of China is large, needs higher pressure limit during the test of gas isothermal adsorption.Pressure due to the gas isothermal adsorption solution analyzer of current volumetric method of selling in the world is maximum only reaches 20MPa, only be equivalent to the reservoir pressure that the degree of depth is 2000 meters, far can not simulate buried depth more than 2000 meters, the adsorption and desorption research of pressure under the deep level mining pressure condition of more than 20MPa, and gravimetric method test (magnetic suspension balance absorption method of testing), due to the disadvantage that natural buoyancy corrects, compare under high pressure volumetric method better, therefore need develop can at the extra-high adsorption-desorption analyser of larger temperature and pressure scope work, meet the mud shale of layer deeper, coal petrography adsorptive power is tested.
In chemical industry adsorbing domain or materials adsorption field, can measure a small amount of pressed powder, mushy material the method and apparatus of gas isothermal adsorption a lot.As United States Patent (USP): US19910662284 possesses the gas absorption isothermal test of measuring low pressure porosint, come specific surface area and the factor of porosity of test material, United States Patent (USP): US4972730 can test the absorption property of quantitative applied voltage test porosint, United States Patent (USP): US4762010, can the adsorption-desorption performance of detecting catalyst.In recent years, also there are the development to coal petrography, mud shale adsorption-desorption equipment in Domestic Scientific Research unit and enterprise.As Chinese patent: CN102162785B, the isothermal adsorption of coal and mud shale can be carried out under higher temperature and pressure, Chinese patent: CN202770738U, the adsorbability at mesolow test powders shape material, Chinese patent: CN 201965069U can test gas absorption amount and the adsorption swelling amount of coal petrography automatically.But said apparatus system exists following defect: because structural design is unreasonable, instrument bearing pressure is low, and working pressure is at below 25MPa; Working temperature is lower, generally below 150 DEG C; Automaticity is low, takies manpower many.
Summary of the invention:
The purpose of this utility model is to provide that a kind of structure pipeline is reasonable in design, and instrument bearing pressure can reach 70MPa, and working temperature is high, and automaticity is high, can the extra-high Sorption Analyzer of efficient analysis.
The utility model is implemented by the following technical programs:
Extra-high Sorption Analyzer of the present utility model, is characterized in that, comprise sample cell, constant temperature oven, master controller, accumulator still, cylinder manifold, one PID temperature controller, 2nd PID temperature controller, PID pressure regulator valve, well heater, computer and vacuum pump, described sample cell is by the valve 1 in pipeline and constant temperature oven, valve 4, valve 7, PID pressure regulator valve, valve 10, retaining valve 2, filtrator, methane air intake opening order on constant temperature tank wall is connected, and constant temperature tank wall also has helium air intake opening, the retaining valve 3 of helium air intake opening in pipeline and constant temperature oven, valve 6, valve 8, valve 9, vacuum pump outside constant temperature oven is connected, and the pipeline between valve 10 and PID pressure regulator valve is also connected with pressure transducer 5 and rupture disk assembly 20, and rupture disk assembly 20 is through pipeline and retaining valve 1, the exhausr port of constant temperature tank wall is connected, described rupture disk assembly 20 is communicated with the pipeline between retaining valve 1 is crossing with the pipeline between valve 8 and valve 9, described PID pressure regulator valve is also connected to the pipeline between valve 8 and valve 9, pipeline between PID pressure regulator valve and valve 7 is connected with pressure transducer 4, this pressure transducer 4 is connected with PID pressure regulator valve signal, pipeline between described valve 6 and valve 8 is crossing with the pipeline between valve 7 and valve 4 to be communicated with, described accumulator still is connected with valve 5, the other end of valve 5 is connected on the pipeline between valve 4 and valve 7, valve 2 is connected through pipeline with valve 3, valve 2 is connected with pressure transducer 3, valve 3 is connected with pressure transducer 2, pipeline between valve 2 and valve 3 is crossing with the pipeline between valve 1 and valve 4 to be communicated with, pipeline between this crossing connectivity points to valve 1 is also provided with pressure transducer 1 and thermal resistance 1, described sample cell also overlaps outward sample cell heating jacket, sample cell is also connected with thermal resistance 2 and thermal resistance 3, thermal resistance 2 is also electrically connected with master controller, thermal resistance 3 and sample cell heating jacket are all connected with a PID temperature controller electricity, also well heater is provided with in constant temperature oven, thermal resistance 4 and thermal resistance 5, thermal resistance 4 is connected with master controller electricity, and well heater and thermal resistance 5 are all connected with the 2nd PID temperature controller electricity, described valve 1, valve 2, valve 3, valve 4, valve 5, valve 6, valve 7, valve 8, valve 9, valve 10 is all gas control shutoff valve, and they are all connected with cylinder manifold, and cylinder manifold is connected with master controller again, described pressure transducer 1, pressure transducer 2, pressure transducer 3, pressure transducer 4, pressure transducer 5 is all connected with master controller, and master controller is connected with computer again,
Master controller receives the signal that thermal resistance and pressure transducer transmit, and is transferred to computer, then accepts the signal that computer assigns, and controls gas control shutoff valve;
The signal that the transmission of connecting computer main controller comes, and shows it, stores and analyzes, and show result, then gives an order and award master controller.
Preferably, the control pipeline between the control knob of described cylinder manifold to cylinder manifold is also connected with methane detector.
Preferably, the air intake of described cylinder manifold is connected with control flue, and gas outlet is connected with one-way cylinder.
Preferably, described pressure transducer 1,2,3 is respectively high pressure, middle pressure, low pressure sensor, meets 0 ~ 70MPa, respectively
The accurate measurement of gradient pressure.
Preferably, described accumulator still is enough large, meets sample cell and is less than 1/70 with accumulator still internal volume ratio.
The circuit design that employing of the present utility model is rationally distributed and the Automation Design, make extra-high Sorption Analyzer of the present utility model can be efficient, robotization measures mud shale extra-high (reaching as high as 70MPa) adsorbance, and instrument bearing pressure can reach 70MPa, working temperature room temperature to 400 DEG C.
Accompanying drawing explanation
Fig. 1 is the structural representation of extra-high Sorption Analyzer of the present utility model;
Fig. 2 is sample cell gas replenishment process figure;
Fig. 3 is evacuation Organization Chart;
Fig. 4 is correction volume program architecture figure;
Fig. 5 is cycle P CT program structure diagram;
Wherein, 1, filtrator; 2-1,2-2,2-3,2-4,2-5,2-6,2-7,2-8,2-9,2-10 are respectively valve 1, valve 2, valve 3, valve 4, valve 5, valve 6, valve 7, valve 8, valve 9, valve 10; 3-1,3-2,3-3,3-4,3-5 are respectively pressure transducer 1, pressure transducer 2, pressure transducer 3, pressure transducer 4, pressure transducer 5; 4, computer; 5, PID pressure regulator valve; 6, cylinder manifold; 7, one-way cylinder; 8-1,8-2,8-3 are respectively retaining valve 1, retaining valve 2, retaining valve 3; 9, methane detector; 10, control knob; 11-1,11-2 are respectively a PID temperature controller and the 2nd PID temperature controller; 12, master controller; 13, well heater; 14, sample cell heating jacket; 15-1,15-2,15-3,15-4,15-5 are respectively thermal resistance 1, thermal resistance 2, thermal resistance 3, thermal resistance 4 and thermal resistance 5; 16, accumulator still; 17, sample cell; 18, vacuum pump; 19, constant temperature oven; 20, rupture disk assembly, pressure limiting 84MPa.
Embodiment:
Following examples further illustrate of the present utility model, instead of to restriction of the present utility model.
Embodiment 1: the Computing Principle of employing
This instrument adopts volumetric method to measure the adsorbance of sample
There is the equation of gas state known
PV＝nRT z(P,T)…………………(1)
Then n=PV/RTz (R, T) ... .. (2)
In formula, P is the pressure in closed system, and V is the volume of closed system, and n is the amount of substance of gas in closed system, and R is ideal gas constant, and T is the temperature of closed system, and z is the compressibility factor of this gas under pressure P temperature T.
Valve 1 in this instrument, pipeline composition between 4 stores gas pond, its volume is known as Vr, sample cell and sample cell are to the pipeline of valve 1 for can survey volume Vs, and shutoff valve 1, to storing the inflation of gas pond, then opens valve 1, through balancing after a while, an adsorption process that Here it is, and then shutoff valve 1, press equilibrium of forces next time.After once balance process, sample cell and the equalized pressure stored in gas pond are P
j-1, the amount of substance of the free gas of sample cell is n
sc (j-1), shutoff valve 1, after storing the inflation of gas pond, storing gas pond internal pressure is P
r, the amount of substance storing the free gas in gas pond is n
r, open valve 1, after a period of time balance, the registration of pressure transducer 1 is P
j, then the amount now storing the free gas in gas pond is n
rj, the amount of substance of the free gas of sample cell is nSC
j,
According to amount of substance conservation formula, the adsorbance of the sample after jth time gas equilibrium is
Embodiment 2:
As shown in Figure 1, the extra-high Sorption Analyzer of the present embodiment, comprises sample cell 17, constant temperature oven 19, master controller 12, accumulator still 16, cylinder manifold 6, one PID temperature controller 11-1, 2nd PID temperature controller 11-2, PID pressure regulator valve 5, well heater 13, computer 4 and vacuum pump 18, described sample cell 17 is by the valve 12-1 in pipeline and constant temperature oven, valve 42-4, valve 72-7, PID pressure regulator valve 5, valve 102-10, retaining valve 28-2, filtrator 1, methane air intake opening order on constant temperature tank wall is connected, and constant temperature tank wall also has helium air intake opening, the retaining valve 38-3 of helium air intake opening in pipeline and constant temperature oven, valve 62-6, valve 82-8, valve 92-9, vacuum pump 18 outside constant temperature oven is connected, and the pipeline between valve 10 and PID pressure regulator valve is also connected with pressure transducer 53-5 and rupture disk assembly 20, rupture disk assembly 20 is through pipeline and retaining valve 18-1, the exhausr port of constant temperature tank wall is connected, described rupture disk assembly 20 is communicated with the pipeline between retaining valve 1 is crossing with the pipeline between valve 8 and valve 9, described PID pressure regulator valve is also connected to the pipeline between valve 8 and valve 9, pipeline between PID pressure regulator valve and valve 7 is connected with pressure transducer 43-4, this pressure transducer 4 is connected with PID pressure regulator valve signal, pipeline between described valve 6 and valve 8 is crossing with the pipeline between valve 7 and valve 4 to be communicated with, described accumulator still 16 is connected with valve 52-5, the other end of valve 5 is connected on the pipeline between valve 4 and valve 7, valve 22-2 is connected through pipeline with valve 32-3, valve 2 is connected with pressure transducer 33-3, valve 3 is connected with pressure transducer 23-2, pipeline between valve 2 and valve 3 is crossing with the pipeline between valve 1 and valve 4 to be communicated with, pipeline between this crossing connectivity points to valve 1 is also provided with pressure transducer 13-1 and thermal resistance 115-1, described sample cell also overlaps outward sample cell heating jacket 14, sample cell is also connected with thermal resistance 215-2 and thermal resistance 315-3, thermal resistance 2 is also electrically connected with master controller 12, thermal resistance 3 and sample cell heating jacket 14 are all connected with a PID temperature controller 11-1 electricity, well heater 13 is also provided with in constant temperature oven, thermal resistance 415-4 and thermal resistance 515-5, thermal resistance 4 is connected with master controller 12 electricity, and well heater and thermal resistance 5 are all controlled device electricity and be connected with the 2nd PID temperature 11-2, described valve 1, valve 2, valve 3, valve 4, valve 5, valve 6, valve 7, valve 8, valve 9, valve 10 is all gas control shutoff valve, and they are all connected with cylinder manifold 6, and the air intake of cylinder manifold is connected with control flue, and gas outlet is connected with one-way cylinder 7, and cylinder manifold is connected with master controller again, described pressure transducer 1, pressure transducer 2, pressure transducer 3, pressure transducer 4, pressure transducer 5 is all connected with master controller, and master controller is connected with computer 4 again,
Master controller receives the signal that thermal resistance and pressure transducer transmit, and is transferred to computer, then accepts the signal that computer assigns, and controls gas control shutoff valve;
The signal that the transmission of connecting computer main controller comes, and shows it, stores and analyzes, and show result, then gives an order and award master controller.
Control pipeline between control knob 10 to the cylinder manifold of described cylinder manifold is also connected with methane detector 9, whether has methane to remain to facilitate in detection cylinder manifold.
Described pressure transducer 1,2,3 is respectively high pressure, middle pressure, low pressure sensor, meets 0 ~ 70MPa, the accurate measurement of each gradient pressure.
Described accumulator still is enough large, meets sample cell and is less than 1/70 with accumulator still internal volume ratio.
The workflow of the extra-high Sorption Analyzer of the present embodiment is as follows:
Following middle valve V1, V2, V3, V4, V5, V6, V7, V8, V9, V10 are corresponding with above-mentioned valve 1, valve 2, valve 3, valve 4, valve 5, valve 6, valve 7, valve 8, valve 9, valve 10 respectively, corresponding with the valve 1 in Fig. 2-4, valve 2, valve 3, valve 4, valve 5, valve 6, valve 7, valve 8, valve 9, valve 10.
P1, P2, P3, P4, P5 are corresponding with above-mentioned pressure transducer 1, pressure transducer 2, pressure transducer 3, pressure transducer 4, pressure transducer 5 respectively, also corresponding with P1, P2, P3, P4, the P5 in Fig. 2-Fig. 4.
1. when starting to test, need carry out emptying pipe process to instrument, object is that the residual air in pipeline that gas cylinder is connected with instrument drains only.This process also can be discharged the pipeline gas in instrument system.
2. inspection apparatus, pipeline, starts experiment after all are normal, adds sample, and carry out system cloud gray model on request after connecting instrument in sample cell.
1) air-leakage test, carry out air-leakage test to system and sample cell, process flow diagram is shown in Fig. 2.By the monitoring of pressure transducer to internal system pressure, it is intact whether check system inside seals.
By function software, air tightness test pressure is arranged before detecting, software runs automatically according to flow process, open valve V102-10, regulated by the boosting of setting value ladder by PID pressure regulator valve 5, and open valve V7, V4, V1, after pressure rises to set target pressure, shutoff valve V10 and V7, by setting-up time, pressurize test is carried out to sample cell and associated conduit, after setting-up time completes, function software judges voltage drop value, if pressure drop exceeds allowed band value, function software prompting checks leakage cause and gets rid of.If pressure drop is in allowed band value, system evacuation will be entered, will vacuumize sample cell and instrument pipeline system, and make system keep vacuum state before experiment test.
As process flow diagram 3, system evacuation, utilize vacuum system respectively to sample cell, accumulator still, piping system arranges the pumpdown time, open valve V4, V5, by pressure transducer P1 to piping system pressure monitoring, when pressure is greater than 0.5MPa, open valve V7 pipeline pressure carries out step-down exhaust by the back pressure function of PID pressure regulator valve, when pressure is less than 0.5MPa, open valve V8 discharges piping system gas, shutoff valve V8 after discharge, adopt the same manner open valve V1 successively, V2, make sample cell, in low pressure sensor P3 section, pressure is by accumulator still step-down, by pressure transducer P1, by P3, pressure is detected during low pressure sensor section, pressure is greater than or less than 0.5MPa function software and makes corresponding judgement and operation, sample cell, accumulator still, system pipeline Pressure Drop is to 0.1MPa, respectively it is vacuumized.
2) correction volume, carries out free volume correction calculation respectively, as process flow diagram 4 to the sample cell after load sample under room temperature and experimental temperature condition.
After respectively each system and sample cell being vacuumized, volume correction air supply system and adsorption process principle is utilized to carry out correction volume, He or inert gas is passed into after open valve V6, again after shutoff valve V6, open valve V1 simultaneously, 2, 4, after a period of time voltage stabilizing, shutoff valve V1 successively, 2, 4, then V1 is opened successively, 2, shutoff valve V2 successively again, 1, open V2 after completing successively and close V2, open valve 4, 6, judge that now pressure transducer P1 pressure value should lower than open valve V2 after low pressure sensor P3 through function software system, shutoff valve V6 successively, 2, 4, open valve V2, after time voltage stabilizing, shutoff valve V2 and open valve V1 simultaneously, open valve V2 after completing, shutoff valve V2 successively, 1, obtained by low pressure sensor P3 institute image data, 1.A data.Then desorption principle is utilized again to carry out correction volume, open valve V1 successively, 2, shutoff valve V2 successively after completing, 1, open valve V2, after time voltage stabilizing, shutoff valve V2, open valve V4 simultaneously, after 8, open valve V2, shutoff valve V2 after completing, open valve V9 vacuumizes, after time voltage stabilizing, shutoff valve V4 simultaneously, 8, 9, open valve V2, after time voltage stabilizing, shutoff valve V2, open valve V1 successively after completing, 2, after time voltage stabilizing, shutoff valve V2 successively, 1, draw 1.D data, repeated test can be carried out by above volume correction program as required and make Data Comparison, complete and test and according to system suggestion complete after selecting correct data and open valve V1 simultaneously, 4, 8, after exhaust, open valve V2, shutoff valve V2 and open valve V9 after completing, vacuumize, shutoff valve V9, shutoff valve V1 after 8, 4, open valve V1 after completing, last shutoff valve V1, complete volume correction, program calculates show sample pond volume automatically, respectively volume correction is carried out to sample cell room temperature or experimental temperature in the same fashion, calculate and show sample pond volume and standard deviation value and difference value.
3) PCT is tested, PCT test is carried out to sample, to in instrument and after sample cell is warming up to probe temperature, fill in and select the correlation parameter of test, and can select according to demand to adsorb test separately, desorption is tested, PCT test or cycle P CT test, fill in complete preservation file designation, as process flow diagram 5, select exhaust and after vacuumizing function, when being 0 as arranged sample cell original pressure (or pipeline original pressure) in parameter, sample cell is vacuumized, vacuumize rear pressure force snesor P1 value as the accumulated value of the target pressure value of next stage and as shutoff valve V1 after original pressure, open valve V4, after time voltage stabilizing, open valve V10 respectively, 7, by PID pressure regulator valve, this phase targets pressure is regulated, shutoff valve V7 successively, 4, gathered by pressure transducer P1 and store open valve V1 after atmospheric pressure hop count value, by system judgement balance or after completing by setting phases-time section, image data makes current P1, program calculates the adsorbance of current sample automatically, force value as the accumulated value of next stage, when voltage stabilizing balance after P1 pressure value is more than or equal to set target pressure or after completing by setting phases-time, as only carried out absorption test, lifting test completes by system, and point out system step-down after data being preserved by software dialogue box and vacuumize process.As simultaneously adsorption selection and desorption in parameter, adsorb rear system to continue according to desorption phase targets pressure operable valve V4, 7 carry out unloading and are depressed into staged pressure value, difference shutoff valve V7 after completing, 4 utilize P1 to carry out image data (as storing atmospheric pressure) equally, open valve V1, allow after pressure equilibrium, gather equilibrium pressure force value, make the initial pressure value of next stage, when after Pressure Drop to setting desorption pressure value, prompting test completes, and point out system step-down after data being preserved by software dialogue box and vacuumize process, shutoff valve V1, open valve V4, judge whether sensor P3 pressure is less than 0.5MPa, as no, by the release of PID pressure regulator valve back pressure function, in this way, open valve V8, after time exhaust, open valve V9 vacuumizes, after the time vacuumizes, shutoff valve V4 simultaneously, 8, 9, end of operation, it is then test PCT that adsorption and de-adsorption completes simultaneously.By optimum configurations repeatedly cycle P CT test, need to vacuumize after often carrying out a cycle P CT test.After by test and preserve data and carry out generating the adsorbance of sample or the calculating of desorption amount and chart.
Claims (5)
1. an extra-high Sorption Analyzer, is characterized in that, comprises sample cell, constant temperature oven, master controller, accumulator still, cylinder manifold, one PID temperature controller, 2nd PID temperature controller, PID pressure regulator valve, well heater, computer and vacuum pump, described sample cell is by the valve 1 in pipeline and constant temperature oven, valve 4, valve 7, PID pressure regulator valve, valve 10, retaining valve 2, filtrator, methane air intake opening order on constant temperature tank wall is connected, and constant temperature tank wall also has helium air intake opening, the retaining valve 3 of helium air intake opening in pipeline and constant temperature oven, valve 6, valve 8, valve 9, vacuum pump outside constant temperature oven is connected, and the pipeline between valve 10 and PID pressure regulator valve is also connected with pressure transducer 5 and rupture disk assembly 20, and rupture disk assembly 20 is through pipeline and retaining valve 1, the exhausr port of constant temperature tank wall is connected, described rupture disk assembly 20 is communicated with the pipeline between retaining valve 1 is crossing with the pipeline between valve 8 and valve 9, described PID pressure regulator valve is also connected to the pipeline between valve 8 and valve 9, pipeline between PID pressure regulator valve and valve 7 is connected with pressure transducer 4, this pressure transducer 4 is connected with PID pressure regulator valve signal, pipeline between described valve 6 and valve 8 is crossing with the pipeline between valve 7 and valve 4 to be communicated with, described accumulator still is connected with valve 5, the other end of valve 5 is connected on the pipeline between valve 4 and valve 7, valve 2 is connected through pipeline with valve 3, valve 2 is connected with pressure transducer 3, valve 3 is connected with pressure transducer 2, pipeline between valve 2 and valve 3 is crossing with the pipeline between valve 1 and valve 4 to be communicated with, pipeline between this crossing connectivity points to valve 1 is also provided with pressure transducer 1 and thermal resistance 1, described sample cell also overlaps outward sample cell heating jacket, sample cell is also connected with thermal resistance 2 and thermal resistance 3, thermal resistance 2 is also electrically connected with master controller, thermal resistance 3 and sample cell heating jacket are all connected with a PID temperature controller electricity, also well heater is provided with in constant temperature oven, thermal resistance 4 and thermal resistance 5, thermal resistance 4 is connected with master controller electricity, and well heater and thermal resistance 5 are all connected with the 2nd PID temperature controller electricity, described valve 1, valve 2, valve 3, valve 4, valve 5, valve 6, valve 7, valve 8, valve 9, valve 10 is all gas control shutoff valve, and they are all connected with cylinder manifold, and cylinder manifold is connected with master controller again, described pressure transducer 1, pressure transducer 2, pressure transducer 3, pressure transducer 4, pressure transducer 5 is all connected with master controller, and master controller is connected with computer again,
Master controller receives the signal that thermal resistance and pressure transducer transmit, and is transferred to computer, then accepts the signal that computer assigns, and controls gas control shutoff valve;
The signal that the transmission of connecting computer main controller comes, and shows it, stores and analyzes, and show result, then gives an order and award master controller.
2. extra-high Sorption Analyzer according to claim 1, is characterized in that, the control pipeline between the control knob of described cylinder manifold to cylinder manifold is also connected with methane detector.
3. extra-high Sorption Analyzer according to claim 1, is characterized in that, the air intake of described cylinder manifold is connected with control flue, and gas outlet is connected with one-way cylinder.
4. extra-high Sorption Analyzer according to claim 1, is characterized in that, described pressure transducer 1,2,3 is respectively high pressure, middle pressure, low pressure sensor.
5. extra-high Sorption Analyzer according to claim 1, is characterized in that, described sample cell is less than 1/70 with accumulator still internal volume ratio.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158489A (en) * | 2015-07-30 | 2015-12-16 | 中国石油大学(华东) | Supercritical-state gas adsorption desorption apparatus and application method thereof |
| CN106018164A (en) * | 2016-06-28 | 2016-10-12 | 中国矿业大学 | Full-automatic gas adsorption and desorption system and process |
| CN114199719A (en) * | 2021-11-22 | 2022-03-18 | 仪晟科学仪器(嘉兴)有限公司 | Specific surface area testing device and testing method |
-
2015
- 2015-01-29 CN CN201520064375.4U patent/CN204405475U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158489A (en) * | 2015-07-30 | 2015-12-16 | 中国石油大学(华东) | Supercritical-state gas adsorption desorption apparatus and application method thereof |
| CN105158489B (en) * | 2015-07-30 | 2017-03-01 | 中国石油大学(华东) | A kind of supercriticality gas absorption desorption apparatus and its using method |
| CN106018164A (en) * | 2016-06-28 | 2016-10-12 | 中国矿业大学 | Full-automatic gas adsorption and desorption system and process |
| CN106018164B (en) * | 2016-06-28 | 2019-02-22 | 中国矿业大学 | A kind of fully automatic gas adsorption and desorption system and technique |
| CN114199719A (en) * | 2021-11-22 | 2022-03-18 | 仪晟科学仪器(嘉兴)有限公司 | Specific surface area testing device and testing method |
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