CN201885943U - Device for measuring adsorption capacity of material - Google Patents
Device for measuring adsorption capacity of material Download PDFInfo
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- CN201885943U CN201885943U CN2010206592560U CN201020659256U CN201885943U CN 201885943 U CN201885943 U CN 201885943U CN 2010206592560 U CN2010206592560 U CN 2010206592560U CN 201020659256 U CN201020659256 U CN 201020659256U CN 201885943 U CN201885943 U CN 201885943U
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- 239000000463 material Substances 0.000 title claims abstract description 35
- 238000001179 sorption measurement Methods 0.000 title abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 39
- 239000007924 injection Substances 0.000 claims abstract description 39
- 238000005259 measurement Methods 0.000 claims abstract description 30
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 75
- 239000011435 rock Substances 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 17
- 230000009467 reduction Effects 0.000 claims description 15
- 238000012360 testing method Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 4
- 239000003566 sealing material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 218
- 239000003245 coal Substances 0.000 description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000000274 adsorptive effect Effects 0.000 description 7
- 239000008393 encapsulating agent Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000003913 materials processing Methods 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
The utility model discloses a device for measuring material adsorption capacity, which processes the measured material into a cylindrical sample and places the sample in a gas injection measuring unit after the sample is wrapped by sealing material, a gas container and a pressure chamber connected with the gas container are arranged in the gas injection measuring unit, the pressure chamber is filled with hydraulic oil, a plurality of gas injection measuring units can be arranged in parallel, the measuring method is that the dead volume of the gas container and the pressure chamber in each gas injection measuring unit and the gas pressure value before and after gas adsorption are measured, then the adsorption capacity of each sample to single component gas can be obtained by simple calculation through a gas state equation, if the measurement of the adsorption capacity of multi-component mixed gas is carried out, the component contents of the mixed gas after adsorption balance measurement need to be obtained according to the gas state equation, the utility model can realize the measurement of a plurality of sample adsorption capacities at one time, meanwhile, the measurement of the adsorption capacity of the multi-component mixed gas can be met, and the method is convenient and quick.
Description
Technical field
The utility model relates to the attribute testing technical field of construction material, particularly a kind of device of measuring the material adsorbance.This device can be widely used in the measurement of simultaneously a plurality of construction material samples being carried out one-component gas or many components mixed gas adsorptive power (adsorbance).
Background technology
A lot of materials (as activated charcoal, coal etc.) are owing to comprise a large amount of holes, its surface area is very big, thereby has a adsorptive power to gas, different materials is to the adsorbance difference of same gas, same material also exists difference to the adsorbance of gas with various, and it is significant to the character of understanding material to the adsorptive power of gas with various accurately to measure material.
For the material with adsorbability, its adsorbability has a lot of use, such as activated charcoal, can utilize its adsorbability to come Purge gas; Also have a lot of materials, utilize their absorption property can develop new function material.
For coal, studying it has more the adsorbability of gas and has very important significance, as everyone knows, the a large amount of methane (gas) that contain in the coal seam mainly exist in the coal with adsorbed state, therefore, accurately measure coal and can know the content of gas in the coal seam, and then estimate coal bed gas content the adsorbance of methane, in addition development and utilization, the outstanding problem that also can prevent and treat coal mine gas from explosion simultaneously; Simultaneously, in the coal seam, inject the recovery ratio (gas is gas displacing coal-bed) that other gas can also improve coal-bed gas, its principle mainly is exactly to use the difference of coal to the adsorptive power of gas with various, therefore studying the adsorptive power of coal to gas with various, also is very important to seeing clearly the gas displacing coal-bed mechanism of gas.
Disclose the measuring method and the device of a kind of material adsorbance-distortion-infiltration coefficient among the CN200810197812, its method is: materials processing is become cylindrical sample; Cylindrical sample and porous gasket are wrapped up with encapsulant, be placed in the pressure chamber; System is vacuumized; To the volume pump inflation, write down the volume and the force value of gas in the volume pump; Give hydraulic oil pressurization in the pressure chamber; Open volume pump, give the sample gas injection; The rate of change of gas volume in the record volume pump; When treating that the rate of change of gas volume is constant in the volume pump, write down volume, differential pressure gauge and the deformation-sensor reading of gas in this speed and this moment volume pump; Calculate adsorbance, distortion and infiltration coefficient.This device comprises source of the gas subsystem, gas injection and control subsystem, loads subsystem, data acquisition subsystem and Water Tank with Temp.-controlled.The utility model can be measured adsorbance, distortion and the infiltration coefficient of material simultaneously, makes the test several times of original needs once, finish simultaneously, has saved test period and cost.
In realizing process of the present utility model, the inventor finds that there is following shortcoming at least in CN200810197812, when measuring the material adsorbance, once only can carry out the measurement of gas absorption amount to a kind of sorbing material, in connecting, device used two volume pumps and a differential pressure gauge to carry out systematic survey, it is by measuring the preceding volume of institute's gas absorption of surveying, volume and system's dead volume of absorption back gas, difference by three gas volumes draws the gas absorption amount, if need measuring repeatedly, the adsorptive power of a kind of sorbing material of mensuration just can draw data more accurately simultaneously, need long measuring period like this, in addition, above-mentioned patent can't satisfy measure and monitor the growth of standing timber the material mixed gas is carried out the measurement of adsorbance.
The utility model content
In order to realize measurement quick and precisely to survey sorbing material adsorptive power, make the measurement work simplification, realize of the measurement of a plurality of measurement sample materials simultaneously to the adsorbance of one-component gas, it is consuming time to reduce operation, simultaneously can also carry out the measurement of adsorbance to the mixed gas of many components, the utility model embodiment provides a kind of device of measuring the material adsorbance, and described technical scheme is as follows:
The utility model provides a kind of device of measuring the material adsorbance, and described device comprises:
The source of the gas subsystem is used for providing the measurement source of the gas to measurement mechanism;
Gas injects and control subsystem, comprises the upstream measuring apparatus, and the gas input end of described upstream measuring apparatus connects by the gas output end of connecting line with described source of the gas subsystem;
Load subsystem, be used for the arrangement of the material samples of measuring and monitoring the growth of standing timber, comprise the pressure chamber, described gas injects and is connected by the gas input end of connecting line with described pressure chamber with the gas output end of control subsystem;
Data acquisition subsystem is used for measuring described gas and injects gaseous tension with control subsystem;
Be provided with at least one that be arranged in parallel in the described loading subsystem and be used for the pressure chamber that institute's test specimens is settled, described gas inject with control subsystem in be provided with the identical gas container that is arranged in parallel of described pressure chamber quantity, the gas input end of described gas container is connected with the gas output end of the upstream measuring apparatus of control subsystem with described gas injection, and the gas input end at two ends, described pressure chamber connects by the gas output end of connecting line with described gas container respectively.
Described source of the gas subsystem comprises the reduction valve that the gas cylinder that is used for injecting gas is connected with gas output end with described gas cylinder, and the gas output end of described reduction valve injects with described gas and is connected with the upstream measuring apparatus of control subsystem.
Described gas injects and comprises the manual pump that is connected the person in charge, upstream measuring apparatus, pressure transducer, vacuum extractor, filtrator, valve, gas container, connecting branch and is used for squeezing into hydraulic oil in described pressure chamber with control subsystem;
The input end of described filtrator is connected with described reduction valve by connecting to be responsible for, and its output terminal connects with the air intake valve of described upstream measuring apparatus, is used for measuring apparatus inflation upstream;
Upstream measuring apparatus gas output end is provided with the valve of giving vent to anger, and is used to control upstream measuring apparatus gas injection; The air outlet valve door of upstream measuring apparatus has the vacuum extractor of air intake valve together respectively by connecting branch and the gas output end of the gas container that is arranged in parallel is connected; The gas input end of the described gas container that is arranged in parallel is responsible for described connection by air intake valve respectively and is connected, its gas output end is communicated with the two ends of the pressure chamber that is arranged in parallel are corresponding one by one by the connecting branch that has the valve of giving vent to anger, and the connecting branch between described gas container and the pressure chamber is provided with pressure transducer.
Described pressure chamber is a rock core fastener, and its inside is provided with sample, hydraulic oil and porous gasket, and described porous gasket is arranged at the two ends of described sample, and the two ends of described rock core fastener are connected with described porous gasket by connecting branch.
Described data acquisition subsystem comprises the cable that connects with described pressure transducer, capture card and the usb data line that is used to gather described pressure transducer pressure signal, and capture card is connected with computing machine by the usb data line.
Also be provided with the gas composition analysis subsystem in the described device, described gas composition analysis subsystem comprises gas chromatograph, the sampler that connects with gas chromatograph and the sample tap that is communicated with described sampler;
Described gas injects with control subsystem and also comprises the downstream measuring apparatus, the gas output end of described downstream measuring apparatus connects with described sample tap, its gas input end is provided with air intake valve and filtrator, and same group of described pressure chamber of described filtrator connects by the connecting branch that has valve.
The beneficial effect of the technical scheme that the utility model embodiment provides is:
The utility model only needs a measuring apparatus to carry out the metering of gas volume when the adsorbance of one-component gas is measured, and convenient the installation is convenient to operation.
The utility model is provided with a plurality of gas injection measuring units, in each gas injection measuring unit a sample can be set, can determine to use the quantity of gas injection measuring unit as the case may be, like this, before measurement, can place a plurality of different or identical measurement materials samples of gas injection measuring unit by single step of releasing, after once being vacuumized, total system directly measures successively at the sample in the survey gas injection measuring unit, and obtain the gas container in each gas injection measuring unit and the dead volume of pressure chamber respectively, and the gas pressure value before and after the gas absorption, simply calculate the adsorbance that can draw each sample by the equation of gas state then, measure the measurement that once can realize a plurality of sample adsorbances, convenient, fast.
In addition, the utility model can also carry out the measurement of adsorbance to the gas of mixed composition, and the gas composition content in conjunction with after the absorption of gas composition analysis subsystem analysis draws the adsorbance of institute's test specimens to mixed composition gas according to the equation of gas state.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of the measurement material adsorbance that provides of the utility model embodiment;
Among the figure:
1-source of the gas subsystem
---1.1 gas cylinder, 1.2---reduction valve;
2---gas injects and control subsystem
2.1---connect and be responsible for 2.2a---upstream volume pump 2.2b---downstream volume pump;
2.3a, 2.3b, 2.3c, 2.3d-pressure transducer;
2.4---manual pump 2.5---vacuum pump 2.6---vacuum meter;
2.7a, 2.7b---filtrator;
2.8a, 2.8b, 2.8c, 2.8d, 2.8e, 2.8f, 2.8g, 2.8h, 2.8i, 2.8j, 2.8k, 2.8l, 2.8m, 2.8n, 2.8o---valve;
2.9a, 2.9b, 2.9c---gas container;
2.10a, 2.10b, 2.10c, 2.10d, 2.10e, 2.10f, 2.10g, 2.10h, 2.10i, 2.10j, 2.10k, 2.10l---threeway;
2.11a, 2.11b---four-way;
3-loads subsystem
3.1a, 3.1b, 3.1c---rock core fastener;
3.2a, 3.2b, 3.2c---sample;
3.3a, 3.3b, 3.3c---hydraulic oil;
3.4a, 3.4b, 3.4c, 3.4d, 3.4e, 3.4f---porous gasket;
The 4-data acquisition subsystem
4.1a, 4.1b, 4.1c, 4.1d---cable
4.2---capture card, 4.3---usb data line 4.4---computing machine;
5-gas composition analysis subsystem
5.1---sample tap, 5.2---sampler 5.3---gas chromatograph;
The 6-Water Tank with Temp.-controlled.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing.
Figure 1 shows that an embodiment device process flow diagram of the present utility model, three gas injection measuring units that are connected in parallel are set among the figure, comprise a gas container and a pressure chamber in each gas injection measuring unit, the quantity of gas injection measuring unit also can be set as the case may be, measurement mechanism mainly comprises source of the gas subsystem 1, gas injects and control subsystem 2, load subsystem 3, data acquisition subsystem 4, gas composition analysis subsystem 5 and Water Tank with Temp.-controlled 6, source of the gas subsystem 1 connect to be responsible for 2.1 by stainless steel and to be injected with the interior filtrator 2.7 of control subsystem 2 with gas and to be connected, for system provides source of the gas; Gas injects with control subsystem 2 and is connected by the porous gasket 3.4 in not being connected the person in charge 2.1 and loading subsystem 3, is the sample gas injection; Gas injects with control subsystem 2 and is connected with the sample tap 5.1 of gas componant subsystem 5 by being connected the person in charge 2.1; Pipeline, each gas container and the pressure chamber of gas injection and control subsystem 2 all are placed on Water Tank with Temp.-controlled 6 and keep constant temperature; Gas injects with the pressure transducer 2.3 of control subsystem 2 and is connected by the interior capture card 4.2 of cable 4.1a, 4.1b, 4.1c, 4.1d and data acquisition subsystem 4 respectively.
Wherein, source of the gas subsystem 1 comprises gas cylinder 1.1, reduction valve 1.2;
Gas injects with control subsystem 2 and comprises that stainless steel is connected the person in charge 2.1, upstream volume pump 2.2a, downstream volume pump 2.2b, pressure transducer 2.3a, 2.3b, 2.3c, 2.3d totally 4, manual pump 2.4, the vacuum extractor of forming by vacuum pump 2.5 and vacuum meter 2.6, filtrator 2.7a, 2.7b totally 2, valve 2.8a, 2.8b, 2.8c, 2.8d, 2.8e, 2.8f, 2.8g, 2.8h, 2.8i, 2.8j, 2.8k, 2.8l, 2.8m, 2.8n, 2.8o totally 15, gas container 2.9a, 2.9b, 2.9c totally 3, threeway 2.10a, 2.10b, 2.10c, 2.10d, 2.10e, 2.10f, 2.10g, 2.10h, 2.10i, 2.10j, 2.10k, 2.10l totally 12 and four-way .11a, 2.11b totally 2;
Load subsystem 3 and comprise the pressure chamber, wherein the pressure chamber adopts totally 3 of rock core fastener 3.1a, 3.1b, 3.1c, is respectively equipped with sample 3.2a, a 3.2b, 3.2c, hydraulic oil 3.3a, 3.3b, 3.3c and porous gasket 3.4a, 3.4b, 3.4c, 3.4d, 3.4e, 3.4f in each rock core fastener;
Gas composition analysis subsystem 5 comprises sample tap 5.1, sampler 5.2, gas chromatograph 5.3.
Each parts concrete structure annexation is as follows:
Source of the gas subsystem 1: gas cylinder 1.1 is connected with reduction valve 1.2, is used to regulate the gaseous tension that comes out from gas cylinder 1.1.
Gas injects and control subsystem 2, and its annexation is: filtrator 2.7a connects by stainless steel and is responsible for 2.1 and is connected with reduction valve 1.2 in the source of the gas subsystem 1; The filtrator 2.7a other end is connected with the air intake valve 2.8a of upstream volume pump 2.2a, is used for inflating to volume pump 2.2a; Upstream volume pump 2.2a and downstream volume pump 2.2b give vent to anger respectively valve 2.8b and 2.8n are used to control volume pump 2.2 gas injections; The volume pump 2.2a valve 2.8b that gives vent to anger in upstream is connected with a threeway 2.10a; Threeway 2.10a one end connects a valve 2.8c, is used to connect vacuum pump 2.5, and the other end is connected 2.11a with a four-way; Four-way 2.11a one end connects a threeway 2.10c, and two ends respectively link to each other with 2.9c with a gas container 2.9a respectively in addition; Pressure vessel 2.9a, 2.9b, 2.9c respectively link to each other with threeway 2.10d, 2.10f, a 2.10g, threeway 2.10d, 2.10f, 2.10g one end are connected with pressure transducer 2.3a, 2.3b, 2.3c respectively, and the other end links to each other with valve 2.8h, 2.8i, 2.8j respectively; Valve 2.8h, 2.8i, 2.8j are connected with threeway 2.10h, 2.10i, 2.10j respectively, and threeway 2.10h, 2.10i, 2.10j two ends are connected with the upstream and downstream outlet that loads subsystem 3 respectively; Downstream volume pump 2.2b air intake valve 2.8m links to each other with filtrator 2.7b, and then is connected with loading subsystem 3 by valve 2.8i; The volume pump 2.2b valve 2.8n that gives vent to anger in downstream links to each other with gas composition analysis subsystem 5.
Load subsystem 3: sample 3.2 two ends contact with porous gasket 3.4 respectively, are used for to sample 3.2 even gas injections; Porous gasket 3.4 connects the person in charge 2.1 by stainless steel respectively and is connected with the upstream and downstream pipeline of control subsystem 2 with the gas injection.
Data acquisition subsystem 4: capture card 4.2 is connected with computing machine 4.4 by usb data line 4.3.
Gas composition analysis subsystem 5: be used for the analytical gas composition.
The utility model provides the method for measuring the material adsorbance, at the measurement of the adsorbance of one-component gas, specifies the process steps of its measurement in conjunction with Fig. 1:
1, materials processing is become cylindrical sample 3.2a, 3.2b, 3.2c;
2, cylindrical sample 3.2a and porous gasket 3.4a, 3.4b are wrapped up with encapsulant, be placed in the rock core fastener 3.1a, connect the gas injection pipeline that is connected with cylindrical sample 3.2a two ends porous gasket 3.4a, 3.4b in the rock core fastener 3.1a, in rock core fastener 3.1a, fill with hydraulic oil 3.3a; Cylindrical sample 3.2b and porous gasket 3.4c, 3.4d are wrapped up with encapsulant, be placed in the rock core fastener 3.1b, connect the gas injection pipeline that is connected with cylindrical sample 3.2b two ends porous gasket 3.4c, 3.4d in the rock core fastener 3.1b, in rock core fastener 3.1b, fill with hydraulic oil 3.3b; Cylindrical sample 3.2c and porous gasket 3.4e, 3.4f are wrapped up with encapsulant, be placed in the rock core fastener 3.1c, connect the gas injection pipeline that is connected with cylindrical sample 3.2c two ends porous gasket 3.4e, 3.4f in the rock core fastener 3.1c, in rock core fastener 3.1c, fill with hydraulic oil 3.3c;
3, gas in the volume pump 2.2a of upstream is discharged, upstream volume pump 2.2a piston is pushed into top, and reduction valve 1.2 is transferred to off-position, open all valves 2.8 in the pipeline, valve-off 2.8l, 2.8m, 2.8n, 2.8o start vacuum pump 2.5, and system vacuumizes;
4, close the valve 2.8c that is connected with vacuum pump 2.5, close vacuum pump 2.5, close the valve 2.8b that gives vent to anger of upstream volume pump 2.2a, open reduction valve 1.2, upstream volume pump 2.2a charges into helium (He), close the air intake valve 2.8a of upstream volume pump 2.2a, upstream volume pump 2.2a is set to constant voltage mode, writes down the volume and the force value of gas in the volume pump 2.2a of upstream;
5, give hydraulic oil 3.3a pressurization in the rock core fastener 3.1a; Give hydraulic oil 3.3b pressurization in the rock core fastener 3.1b; Give hydraulic oil 3.3c pressurization in the rock core fastener 3.1c;
6, valve-off 2.8f, 2.8g, 2.8h, 2.8i, 2.8j open the valve 2.8b that gives vent to anger of upstream volume pump 2.2a, to gas container 2.9a gas injection;
7, treat in the volume pump 2.2a of upstream that gaseous tension is stable after, write down the volume of gas in the volume pump 2.2a of upstream;
8, the difference of the volume of the volume of gas and the interior gas of the 7th step middle and upper reaches volume pump 2.2a is the dead volume V1 of gas container 2.9a system in the 4th step middle and upper reaches volume pump 2.2a;
9, open valve 2.8h, to rock core fastener 3.1a gas injection;
10, treat in the volume pump 2.2a of upstream that gaseous tension is stable after, write down the volume of gas in the volume pump 2.2a of upstream;
11, the difference of the volume of the volume of gas and the interior gas of the 10th step middle and upper reaches volume pump 2.2a is the dead volume V2 of rock core fastener 3.1a system in the 7th step middle and upper reaches volume pump 2.2a;
12, valve-off 2.8d opens valve 2.8f, to gas container 2.9b gas injection;
13, treat in the volume pump 2.2a of upstream that gaseous tension is stable after, write down the volume of gas in the volume pump 2.2a of upstream;
14, the difference of the volume of the volume of gas and the interior gas of the 13rd step middle and upper reaches volume pump 2.2a is the dead volume V3 of gas container 2.9b system in the 10th step middle and upper reaches volume pump 2.2a;
15, open valve 2.8i, to rock core fastener 3.1b gas injection;
16, treat in the volume pump 2.2a of upstream that gaseous tension is stable after, write down the volume of gas in the volume pump 2.2a of upstream;
17, the difference of the volume of the volume of gas and the interior gas of the 16th step middle and upper reaches volume pump 2.2a is the dead volume V4 of rock core fastener 3.1b system in the 13rd step middle and upper reaches volume pump 2.2a;
18, valve-off 2.8f opens valve 2.8g, to gas container 2.9c gas injection;
19, treat in the volume pump 2.2a of upstream that gaseous tension is stable after, write down the volume of gas in the volume pump 2.2a of upstream;
20, the difference of the volume of the volume of gas and the interior gas of the 19th step middle and upper reaches volume pump 2.2a is the dead volume V5 of gas container 2.9c system in the 16th step middle and upper reaches volume pump 2.2a;
21, open valve 2.8j, to rock core fastener 3.1c gas injection;
22, treat in the volume pump 2.2a of upstream that gaseous tension is stable after, write down the volume of gas in the volume pump 2.2a of upstream;
23, the difference of the volume of the volume of gas and the interior gas of the 22nd step middle and upper reaches volume pump 2.2a is the dead volume V6 of rock core fastener 3.1c system in the 19th step middle and upper reaches volume pump 2.2a;
24, repeat above-mentioned steps 3, vacuumize to system;
25, close the valve 2.8c that is connected with vacuum pump 2.5, close vacuum pump 2.5, close the valve 2.8b that gives vent to anger of upstream volume pump 2.2a, open reduction valve 1.2, upstream volume pump 2.2a charges into the gas (as methane CH4 or nitrogen N 2 or carbon dioxide CO2 etc.) that needs to measure adsorbance, close the air intake valve 2.8a of upstream volume pump 2.2a, upstream volume pump 2.2a is set to constant voltage mode, writes down the force value of gas in the volume pump 2.2a of upstream;
26, open the valve 2.8b that gives vent to anger of upstream volume pump 2.2a, open valve 2.8d, 2.8f, 2.8g, to gas container 2.9a, 2.9b, 2.9c inflation;
27, treat that gaseous tension is stable after, write down gaseous tension in gas container 2.9a this moment, 2.9b, the 2.9c respectively;
28, close the valve 2.8b that gives vent to anger of upstream volume pump 2.2a, valve-off 2.8d, 2.8e, 2.8g open valve 2.8h, 2.8i, 2.8j;
29, treat that gaseous tension is stable after, write down gaseous tension in gas container 2.9a this moment, 2.9b, the 2.9c respectively;
30, according to the pressure of gas in each gas container 2.9a, 2.9b, the 2.9c in the 27th step and the 29th step, and gas container 2.9a, 2.9b, dead volume V1, V3, V5 and rock core fastener 3.1a, the 3.1b of 2.9c, dead volume V2, the V4 of 3.1c, V6, utilize the equation of gas state, can calculate the adsorbance of each sample 3.2a, 3.2b, 3.2c.
Suppose that the coal sample quality is m, standard atmospheric pressure is Pa, the dead volume of gas container is V1, the dead volume of rock core fastener is V2, the P1 of gaseous tension in the gas container before the valve open between gas container and the rock core fastener, pressure during adsorption equilibrium is P2, and according to the equation of gas state, then the adsorbance A when the P2 equalized pressure is:
A＝[P1V1-P2(V1+V2)]/mPa。
The measurement material may further comprise the steps the adsorbance of mixed gas:
1, materials processing is become cylindrical sample 3.2b;
2, cylindrical sample 3.2b and porous gasket 3.4c, 3.4d are wrapped up with encapsulant, be placed in the rock core fastener 3.1b, connect the gas injection pipeline that is connected with cylindrical sample 3.2b two ends porous gasket 3.4c, 3.4d in the rock core fastener 3.1b, in rock core fastener 3.1b, fill with hydraulic oil 3.3b;
3, gas in the volume pump 2.2a of upstream is discharged, upstream volume pump 2.2a piston is pushed into top, and reduction valve valve 1.2 is transferred to off-position, opens valve 2.8a, 2.8b, 2.8c, 2.8e, 2.8i, 2.8l, 2.8m in the pipeline, start vacuum pump 2.5, system vacuumizes;
4, close the valve 2.8c that is connected with vacuum pump 2.5, close vacuum pump 2.5, close the valve 2.8b that gives vent to anger of upstream volume pump 2.2a, open reduction valve 1.2, upstream volume pump 2.2a charges into helium (He), close the air intake valve 2.8a of upstream volume pump 2.2a, upstream volume pump 2.2a is set to constant voltage mode, writes down the volume and the force value of gas in the volume pump 2.2a of upstream;
5, give hydraulic oil 3.3b pressurization in the rock core fastener 3.1b;
6, open the valve 2.8b that gives vent to anger of upstream volume pump 2.2a, to system's gas injection;
7, treat in the volume pump 2.2a of upstream that gaseous tension is stable after, write down the volume of gas in the volume pump 2.2a of upstream;
8, the difference of the volume of the volume of gas and the interior gas of the 7th step middle and upper reaches volume pump 2.2a is the dead volume V1 of system in the 4th step middle and upper reaches volume pump 2.2a;
9, repeat above-mentioned steps 3, vacuumize to system;
10, close the valve 2.8c that is connected with vacuum pump 2.5, close vacuum pump 2.5, close the valve 2.8b that gives vent to anger of upstream volume pump 2.2a, open reduction valve 1.2, upstream volume pump 2.2a charges into the gas (as methane CH4 or nitrogen N 2 or carbon dioxide CO2 etc.) that needs to measure adsorbance, close the air intake valve 2.8a of upstream volume pump 2.2a, upstream volume pump 2.2a is set to constant voltage mode, writes down the volume and the force value of gas in the volume pump 2.2a of upstream;
11, the downstream volume pump is set at constant voltage mode, about the smaller 100kPa of pressure ratio upstream volume pump force value;
12, open the valve 2.8b that gives vent to anger of upstream volume pump 2.2a, open the air intake valve 2.8m of downstream volume pump, to system's gas injection;
13, the rate of change of gas volume in record upstream and downstream volume pump 2.2a, the 2.2b is analyzed downstream volume pump 2.2b composition of gases within;
14, treat that volume pump 2.2a gas injection speed in upstream equates with the downstream volume pump 2.2b speed of exhaust and when constant, write down the volume of gas in this moment upstream and downstream volume pump 2.2a, 2.2b, analyze downstream volume pump 2.2b composition of gases within this moment;
15,, can calculate the adsorbance of sample 3.2b according to the dead volume V1 of the volume of gas, downstream volume pump 2.2b composition of gases within, system in upstream and downstream volume pump 2.2a, the 2.2b in the 10th step and the 14th step.
The mixed gas that disposes certain proportioning carries out the polycomponent adsorption test, wherein the content of gas a is x1, the content of gas b is x2, suppose that the coal sample quality is m, standard atmospheric pressure is Pa, the dead volume of gas container is V1, the dead volume of rock core fastener is V2, the P1 of gaseous tension in the gas container before the valve open between gas container and the rock core fastener, wherein the content of gas a is x1, the content of gas b is x2, and the pressure during adsorption equilibrium is P2, and wherein the content of gas 1 is y1, the content of gas 2 is y2, y1 wherein and y2 obtain by the gas analyzer analysis in the test, and according to the equation of gas state, then adsorbance A1 and the A2 of gas a when the P2 equalized pressure and gas b are respectively:
A1＝[x1P1V1-y1P2(V1+V2)]/mPa
A2＝[x2P1V1-y2P2(V1+V2)]/mPa
Need to prove: the foregoing description is only measured explanation with three groups of gas injection measuring units that are set up in parallel that provide, and in the practical application, can be as required the quantity of gas injection measuring unit be provided with.
Above-mentioned the utility model embodiment sequence number is not represented the quality of embodiment just to description.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. device of measuring the material adsorbance comprises:
Source of the gas subsystem (1) is used for providing the measurement source of the gas to measurement mechanism;
Gas injects and control subsystem (2), comprises upstream measuring apparatus (2.2a), and the gas input end of described upstream measuring apparatus (2.2a) connects by the gas output end of connecting line with described source of the gas subsystem;
Load subsystem (3), be used for the arrangement of the material samples of measuring and monitoring the growth of standing timber, comprise the pressure chamber, described gas injects and is connected by the gas input end of connecting line with described pressure chamber with the gas output end of control subsystem;
Data acquisition subsystem (4) is used for measuring described gas and injects gaseous tension with control subsystem;
It is characterized in that:
Be provided with at least one that be arranged in parallel in the described loading subsystem and be used for the pressure chamber that institute's test specimens is settled, described gas inject with control subsystem in be provided with the identical gas container that is arranged in parallel of described pressure chamber quantity, the gas input end of described gas container is connected with the gas output end of the upstream measuring apparatus of control subsystem with described gas injection, and the gas input end at two ends, described pressure chamber connects by the gas output end of connecting line with described gas container respectively.
2. the device of measurement material adsorbance according to claim 1 is characterized in that:
Described source of the gas subsystem comprises the reduction valve (1.2) that the gas cylinder (1.1) that is used for injecting gas is connected with gas output end with described gas cylinder (1.1), and the gas output end of described reduction valve injects with described gas and is connected with the upstream measuring apparatus of control subsystem.
3. the device of measurement material adsorbance according to claim 1 is characterized in that:
Described gas injects and comprises the manual pump (2.4) that is connected the person in charge (2.1), upstream measuring apparatus (2.2a), pressure transducer (2.3), vacuum extractor, filtrator (2.7), valve (2.8), gas container (2.9), connecting branch and is used for squeezing into hydraulic oil in described pressure chamber with control subsystem (2);
The input end of described filtrator (2.7a) is connected with described reduction valve (1.2) by connecting the person in charge (2.1), and its output terminal connects with the air intake valve of described upstream measuring apparatus (2.2a), is used for measuring apparatus (2.2a) inflation upstream;
Upstream measuring apparatus (2.2a) gas output end is provided with the valve of giving vent to anger, and is used to control upstream measuring apparatus (2.2a) gas injection; The air outlet valve door of upstream measuring apparatus (2.2a) has the vacuum extractor of air intake valve together respectively by connecting branch and the gas output end of the gas container that is arranged in parallel is connected; The gas input end of the described gas container that is arranged in parallel is responsible for (2.1) by air intake valve with described connection respectively and is connected, its gas output end is communicated with the two ends of the pressure chamber that is arranged in parallel are corresponding one by one by the connecting branch that has the valve of giving vent to anger, and the connecting branch between described gas container and the pressure chamber is provided with pressure transducer (2.3).
4. the device of measurement material adsorbance according to claim 3 is characterized in that:
Described pressure chamber is rock core fastener (3.1), its inside is provided with sample (3.2), hydraulic oil (3.3) and porous gasket (3.4), described porous gasket is arranged at the two ends of described sample (3.2), and the two ends of described rock core fastener (3.1) are connected with described porous gasket by connecting branch.
5. the device of measurement material adsorbance according to claim 3 is characterized in that:
Described data acquisition subsystem (4) comprises cable (4.1), the capture card (4.2) that is used to gather described pressure transducer pressure signal and the usb data line (4.3) that connects with described pressure transducer, and capture card (4.2) is connected with computing machine (4.4) by usb data line (4.3).
6. according to the device of the described measurement material of the arbitrary claim of claim 3-5 adsorbance, it is characterized in that:
Also be provided with the gas composition analysis subsystem in the described device, described gas composition analysis subsystem comprises gas chromatograph (5.3), the sampler (5.2) that connects with gas chromatograph and the sample tap (5.1) that is communicated with described sampler;
Described gas injects with control subsystem (2) and also comprises downstream measuring apparatus (2.2b), the gas output end of described downstream measuring apparatus (2.2b) connects with described sample tap, its gas input end is provided with air intake valve and filtrator (2.7b), and same group of described pressure chamber of described filtrator (2.7b) connects by the connecting branch that has valve.
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| CN2010206592560U CN201885943U (en) | 2010-12-08 | 2010-12-08 | Device for measuring adsorption capacity of material |
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| CN2010206592560U CN201885943U (en) | 2010-12-08 | 2010-12-08 | Device for measuring adsorption capacity of material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539278A (en) * | 2010-12-08 | 2012-07-04 | 中国石油天然气股份有限公司 | Method and device for measuring adsorption capacity of material |
| CN103983552A (en) * | 2014-05-27 | 2014-08-13 | 中国石油天然气股份有限公司 | rock core gas in-situ adsorption testing device and working method thereof |
| CN104819910A (en) * | 2015-05-27 | 2015-08-05 | 辽宁工程技术大学 | Experimental device and method for measuring amount of gas adsorbed by large quantity of coal samples under condition of normal pressure |
| CN106769638A (en) * | 2017-01-23 | 2017-05-31 | 西北核技术研究所 | A kind of method and device that molecular sieve adsorption amount is determined based on gas consumption |
| CN107884306A (en) * | 2017-11-10 | 2018-04-06 | 郑州大学 | A kind of adsorption test method and device |
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2010
- 2010-12-08 CN CN2010206592560U patent/CN201885943U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539278A (en) * | 2010-12-08 | 2012-07-04 | 中国石油天然气股份有限公司 | Method and device for measuring adsorption capacity of material |
| CN102539278B (en) * | 2010-12-08 | 2014-09-03 | 中国石油天然气股份有限公司 | Method and device for measuring adsorption capacity of material |
| CN103983552A (en) * | 2014-05-27 | 2014-08-13 | 中国石油天然气股份有限公司 | rock core gas in-situ adsorption testing device and working method thereof |
| CN104819910A (en) * | 2015-05-27 | 2015-08-05 | 辽宁工程技术大学 | Experimental device and method for measuring amount of gas adsorbed by large quantity of coal samples under condition of normal pressure |
| CN106769638A (en) * | 2017-01-23 | 2017-05-31 | 西北核技术研究所 | A kind of method and device that molecular sieve adsorption amount is determined based on gas consumption |
| CN106769638B (en) * | 2017-01-23 | 2019-06-07 | 西北核技术研究所 | A kind of method and device based on gas consumption measurement molecular sieve adsorbance |
| CN107884306A (en) * | 2017-11-10 | 2018-04-06 | 郑州大学 | A kind of adsorption test method and device |
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