CN103558117A - Corrosion-resistant multifunctional low-gas-containing bulk sample content desorber - Google Patents
Corrosion-resistant multifunctional low-gas-containing bulk sample content desorber Download PDFInfo
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- CN103558117A CN103558117A CN201310561828.XA CN201310561828A CN103558117A CN 103558117 A CN103558117 A CN 103558117A CN 201310561828 A CN201310561828 A CN 201310561828A CN 103558117 A CN103558117 A CN 103558117A
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Abstract
The invention relates to a corrosion-resistant multifunctional low-gas containing bulk sample content desorber. The desorber is provided with a bottom plate with a supporting function, wherein three gas collection measuring cylinders are vertically arranged in parallel on the upper part of the bottom plate; a vent valve is arranged on the upper part of each gas collection measuring cylinder; an air inlet in the upper end of the gas collection measuring cylinder I is communicated with an outlet C of a three-way valve I; an inlet hole in the upper end of the gas collection measuring cylinder II is communicated with an outlet C of a three-way valve II; a spillway hole in the bottom end of the gas collection measuring cylinder III is communicated with an outlet C of a three-way valve III; a spillway hole in the bottom end of the gas collection measuring cylinder II is communicated with an outlet C of the three-way valve IV; two vertical brackets are arranged in parallel on the upper part of the bottom plate; a transverse connecting rod is arranged between the two vertical brackets; a conical flask support is perpendicularly and fixedly arranged on the upper parts of the vertical brackets. According to the desorber, low-concentration corrosive gas in a coal bed can be collected, and the corrosion of the gas to a gas tank can also be overcome, so that the desorber is suitable for being popularized and used in the fields of scientific researches and industrial tests.
Description
Technical field
The present invention relates to a kind of desorption instrument, be especially applicable to do the low gas content full-page proof amount corrosion resistant multifunctional desorption instrument of corrosive gas desorption experiment.
Background technology
Coal-seam gas, shale gas are mainly comprised of methane and homolog thereof, conventionally also contain a certain amount of non-hydrocarbon gases, comprising corrosivity, toxic gas H
2s, SO
2, CO
2and CO etc.
Corrosivity, toxic gas are key factors that affects coal-seam gas quality and safety in production thereof.Although to H
2s, SO
2, CO
2and the corrosivity of the gas such as CO, the existing more research of toxic, and the component in rock gas forms and studies that the work of its its significance for geochemistry is quite a few to be seen using it, but few for topicality or the systematic Study of toxic component in coal-seam gas (gas), shale gas.Along with coal-seam gas (gas), shale gas are as H in a kind of utilization of new energy resources and coal-mine gas
2the control of S gas anomaly, corrosivity, toxic gas component and content thereof in research coal-seam gas (gas), shale gas, become new a, problem for system and further investigation urgently.Especially H in coal-mine gas
2s is related to miner's life security extremely, and its research is seemed to more urgent.
In coal production, all kinds of gases in coal road are commonly referred to as to gas.H in coal-mine gas
2s refers to H in mine extremely
2the 6.6ppm(0.00066% that the concentration of S gas is stipulated over < < mine safety rules > >) region.In coal mining, coal seam H
2the Abnormal Methane Emission that the enrichment of S gas anomaly causes and disaster accident at home and abroad constantly occur.At normal temperatures and pressures, H
2s is a kind of have combustibility, toxicity, stench and corrosive colourless harmful gas, has the toxicity that is similar to prussiate, not only can cause serious corrosion to steel etc., causes device damage and generation accident, but also threatens people's health and safety.The ground such as China Inner Mongol, Shandong, Henan, Hunan, Xinjiang, Shaanxi, Gansu, Sichuan, Shanxi, Ningxia have more than 20 colliery to occur H
2s is abnormal, and maximum concentration is colliery, the Cui village, Weishan County, Shandong, reaches 3500ppm, is secondly Aug. 1st colliery, Zaozhuang, Shandong, reaches 1500ppm, and other collieries are generally below 650ppm.
In < < coal bed gas content assay method > > (GB/T19559-2008), stipulated coal-seam gas test device for desorption and operating process, this standard-required desorb tank volume is greater than 1000cm
3, to separate cucurbitula and can pack the coal sample that is greater than 800g quality into, the desorb tank volume using in common coal-seam gas, shale gas test device for desorption is generally less than 2000cm
3.Low rank coal and shale air content are low, H in coal seam
2s gas concentration is also relatively low (to be generally and to be less than 200ppm, directly gather H
2s gas sample is very difficult) in order to collect the H in coal seam
2s gas, improves low rank coal and shale air content measuring accuracy, need to and contain H from low rank coal, shale
2in the original position coal seam of S gas, take a large amount of samples, conventional coal-seam gas desorb tank volume can not meet the requirement of taking full-page proof amount.
Coal-seam gas, shale gas test device for desorption are used gas collection measuring cylinder to collect and measure desorption gas volume conventionally at present, and the volume of the gas collection measuring cylinder of use is 500～1000cm
3.When coal sample, shale sample adsorbed gas content are higher, especially the desorption experiment of full-page proof amount, in the starting stage of desorb, gas desorption speed is very fast, and stripping gas cognition is full of gas collection measuring cylinder in the shorter time, now need to suspend desorption experiment, to gas collection measuring cylinder water-filling, displace the gas in gas collection measuring cylinder, proceed again desorption experiment after making it be full of water, such operating process is loaded down with trivial details, and affects the continuity of desorption experiment.For this reason, forefathers once used a plurality of gas collection measuring cylinders in test device for desorption, gas collection measuring cylinder air intake opening is connected by flexible pipe, water delivering orifice is put into respectively tank, when a gas collection measuring cylinder is full of after desorption gas, by valve regulated, can use next gas collection measuring cylinder to continue to collect desorption gas, easy to operate like this and can guarantee that desorption experiment carries out continuously.But such device is Shortcomings still, the pressure of gas is less than external atmosphere pressure and becomes with the variation of liquid level in graduated cylinder in gas collection measuring cylinder, bring certain error can to like this desorption gas cubing, and error size is difficult to determine.At present, the material of separating cucurbitula use is stainless steel and other metal materials, and H
2s, SO
2deng gas, can cause serious corrosion to hardwares such as steel.The H containing in coal-seam gas, shale gas
2s, SO
2, CO
2deng gas, soluble in water or Yi Yushui generation chemical reaction, adopts draining to measure desorption gas volume potential and must cause measurement result on the low side, need to propose the method for correction volume.
For corrosivity, toxic gas in coal-seam gas (gas), shale gas are furtherd investigate, conventional coal-seam gas, shale gas test device for desorption need to collect gas methods at desorb tank volume, gas extractor, install corrosion resistance and proofread and correct the aspects such as measured deviation that gas soluble in water causes and improve.
Summary of the invention
In order to solve low rank coal and shale air content is low, and the problem of testing containing corrosive gas inconvenience in coal-seam gas, shale gas, the invention provides a kind of low gas content full-page proof amount corrosion resistant multifunctional desorption instrument, this desorption instrument, when carrying out the desorption experiment of coal-seam gas, shale gas, both can gather the acrid H of low concentration in coal seam
2s and SO
2gas, can overcome again the corrosivity of these gases to gas pot, and experiment degree of accuracy is high, is suitable for promoting the use of at scientific research field and industrial test field.
The technical solution adopted for the present invention to solve the technical problems is: this desorption instrument comprises rain glass, T-valve, gas collection measuring cylinder I, T-valve I, air release I, T-valve II, air release II, air release III, gas collection measuring cylinder III, conical flask support, conical flask, long grass tube, short grass tube, connecting link, vertical supports, T-valve III, gas collection measuring cylinder II, T-valve IV, mount holder, base plate, constant water bath box and solution cucurbitula, this desorption instrument is provided with a passive base plate, and the bottom of base plate is provided with two groups of parallel mount holders, and the top of base plate is provided with the gas collection measuring cylinder I of three parallel vertical placements, gas collection measuring cylinder II and gas collection measuring cylinder III, gas collection measuring cylinder I, gas collection measuring cylinder II and gas collection measuring cylinder III top are respectively equipped with air release I, air release II and air release III, the upper end air admission hole of gas collection measuring cylinder I is connected with the C of T-valve I outlet, the upper end air admission hole of gas collection measuring cylinder II is connected with the C of T-valve II outlet, the bottom spillway hole of gas collection measuring cylinder III is connected with the C of T-valve III outlet, the bottom spillway hole of gas collection measuring cylinder II is connected with the C of T-valve IV outlet, the top of base plate is provided with two parallel vertical supports, in the middle of two vertical supports, be provided with a horizontal connecting link, the upper vertical of vertical supports is fixed with conical flask support, conical flask support is used for placing conical flask, the water filling port of conical flask is connecting short grass tube, the gap of conical flask is connecting long grass tube, described suction is analysed tank and is placed in constant water bath box, separate cucurbitula top and be provided with rain glass and T-valve, the C outlet of T-valve is connected with the A outlet of T-valve I by polyethylene hose, the B outlet of T-valve I is connected with the A outlet of T-valve II by polyethylene hose, the B outlet of T-valve II is communicated with the upper end air admission hole of gas collection measuring cylinder III by polyethylene hose, the A outlet of T-valve III is connected with short grass tube by polyethylene hose, the B outlet of T-valve III is connected with the A outlet of T-valve IV by polyethylene hose, the B outlet of T-valve IV is communicated with the bottom spillway hole of gas collection measuring cylinder I by polyethylene hose.
Described solution cucurbitula material is teflon, and teflon has the feature of antiacid alkali resistant, anti-various organic solvents, is dissolved in hardly all solvents, and meanwhile, that teflon has is high temperature resistant, the characteristic of high pressure; This solution cucurbitula can pack into and is greater than 5kg coal sample, and through gas pressure test, while bearing 1MPa pressure, impermeability is good.
The volume of described gas collection measuring cylinder I, gas collection measuring cylinder II and gas collection measuring cylinder III is 1000cm
3, the minimum scale of graduated cylinder is 10cm
3, gas volume measuring accuracy meets regulation in < < coal bed gas content assay method > > (GB/T19559-2008).
The measuring process of this desorption instrument is:
(1) in drill core samples of coal pulled or shale sample, at colliery coal driving or coal face, drill through fresh coal seam sample, roof and floor shale sample 5kg, pack into rapidly and separate in cucurbitula, airtight solution cucurbitula as early as possible, keep T-valve in closed condition, progressively tighten desorb cover, until hand has firm sense to be advisable, be sure not to tighten with HHT higher high tensile, in order to avoid screw thread discord causes dislocation or pushes up badly, cause separating cucurbitula gas leakage.
(2) before desorption experiment, by the Temperature Setting of constant water bath box, be reservoir temperature, and make its temperature that reaches setting before experiment, and keep constant.
(3) be full of water successively to gas collection measuring cylinder I, gas collection measuring cylinder II and gas collection measuring cylinder III, and testing fixture impermeability.Concrete operation step is, keep T-valve I and T-valve II in closed condition, T-valve III and T-valve IV are in A-B connected state, open the air release I on gas collection measuring cylinder I top, by conical flask to gas collection measuring cylinder I water-filling, it is full of after water, closes air release I, now decline explanation gas collection measuring cylinder I impermeability is good automatically for liquid level; Then, open air release II, regulating three-way valve IV is that A-C is communicated with, and by conical flask, to gas collection measuring cylinder II water-filling, it is full of after water, closes air release II, and checks gas collection measuring cylinder II impermeability; Finally, open air release III, making T-valve III is that A-C is communicated with, and by conical flask, to gas collection measuring cylinder III water-filling, it is full of after water, closes air release III, and checks gas collection measuring cylinder III impermeability; When gas collection measuring cylinder I, gas collection measuring cylinder II and gas collection measuring cylinder III are all full of after water, in conical flask, also should there is the water of certain volume.
(4) keep air release I, air release II, air release III in closed condition, make T-valve III and T-valve IV in A-B connected state, T-valve and T-valve I are communicated with and start desorption experiment in A-C, start timing, and now desorption gas enters gas collection measuring cylinder I.
(5) interval at regular intervals, desorption time t(min once accumulated in record) and accumulative solution pipette V(cm
3), before each reading, adjust conical flask liquid level identical with liquid level of measuring cylinder; Record environment temperature and atmospheric pressure at that time simultaneously; Read the time interval of desorption gas volume depending on separating cucurbitula internal pressure.
(6) in desorption experiment process, when gas collection measuring cylinder I will gassy, adjust T-valve I and be that A-B is communicated with, T-valve II is A-C is communicated with, and T-valve IV is that A-C is communicated with, and now desorption gas enters gas collection measuring cylinder II; When if gas collection measuring cylinder II will gassy, adjust T-valve II and be that A-B is communicated with, T-valve III is A-C is communicated with desorption gas and enters gas collection measuring cylinder III; In desorption experiment process, need to carry out gas sampling, the method for sampling is: the B outlet of T-valve is connected with gas collection bag, adjusts T-valve and be communicated with in A-B, treat gas collection 150cm
3left and right, adjusts T-valve and is communicated with and can proceeds desorption experiment in A-C, and the gaseous sample of collection, send laboratory to carry out gas composition analysis by GB/T13610 in time.
(7) in certain hour interval, accumulative solution pipette increment is seldom time, and desorption experiment finishes, and closes T-valve.
(8) make respectively air release I, air release II, air release III be connected with gas collection bag, then according to the method for operating in (3), in gas collection measuring cylinder I, gas collection measuring cylinder II and gas collection measuring cylinder III, be full of water successively, gas in it is driven to respectively in gas collection bag simultaneously, and send in time laboratory to carry out gas composition analysis by GB/T13610 gas.
(9) repeat (4)～(8) and can carry out desorption experiment next time.
(10) in step (5), the accumulative solution pipette V of record is the desorption temperature in test site, the desorption quantity under atmospheric pressure conditions, by following formula, proofreaies and correct as the volume V under the status of criterion
0:
In formula: V
0for the gas volume under the status of criterion, T
0, p
0be respectively the temperature 273.15K(0 ℃ of mark under state), pressure 101.325KPa, temperature when T is desorption experiment, p is the atmospheric pressure in desorption experiment place.
H in coal-seam gas, shale gas component
2s, SO
2, CO
2gas is soluble in water, and gas collection measuring cylinder measurement records desorption gas volume and has deviation, can proofread and correct by method below:
Note ω
1in the gaseous sample gathering for step (6), except H
2s, SO
2, CO
2outward, other gas composition percentage sums, ω
2in gaseous sample for step (8) collection, except H
2s, SO
2, CO
2outward, other gas composition percentage sums, can calculate the actual stripping gas Va of sports school by following formula:
The invention has the beneficial effects as follows, this desorption instrument, when carrying out the desorption experiment of coal-seam gas, shale gas, both can gather the acrid H of low concentration in coal seam
2s and SO
2gas, can overcome again the corrosivity of these gases to gas pot, and experiment degree of accuracy is high, is suitable for promoting the use of at scientific research field and industrial test field.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural principle schematic diagram of the present invention.
In Fig. 1,1. rain glass, 2. T-valve, 3. gas collection measuring cylinder I, 4. T-valve I, 5. air release I, 6. T-valve II, 7. air release II, 8. air release III, 9. gas collection measuring cylinder III, 10. conical flask support, 11. conical flasks, 12. long grass tubes, 13. short grass tubes, 14. connecting links, 15. vertical supports, 16. T-valve III, 17. gas collection measuring cylinder II, 18. T-valve IV, 19. mount holders, 20. base plates, 21. constant water bath box, 22. separate cucurbitula.
Embodiment
In Fig. 1, this desorption instrument comprises rain glass 1, T-valve 2, gas collection measuring cylinder I 3, T-valve I 4, air release I 5, T-valve II 6, air release II 7, air release III 8, gas collection measuring cylinder III 9, conical flask support 10, conical flask 11, long grass tube 12, short grass tube 13, connecting link 14, vertical supports 15, T-valve III 16, gas collection measuring cylinder II 17, T-valve IV 18, mount holder 19, base plate 20, constant water bath box 21 and separates cucurbitula 22, this desorption instrument is provided with a passive base plate 20, the bottom of base plate 20 is provided with two groups of parallel mount holders 19, the top of base plate 20 is provided with the gas collection measuring cylinder I 3 of three parallel vertical placements, gas collection measuring cylinder II 17 and gas collection measuring cylinder III 9, gas collection measuring cylinder I 3, gas collection measuring cylinder II 17 and gas collection measuring cylinder III 9 tops are respectively equipped with air release I 5, air release II 7 and air release III 8, the upper end air admission hole of gas collection measuring cylinder I 3 is connected with the C of T-valve I 4 outlet, the upper end air admission hole of gas collection measuring cylinder II 17 is connected with the C of T-valve II 6 outlet, the bottom spillway hole of gas collection measuring cylinder III 9 is connected with the C of T-valve III 16 outlet, the bottom spillway hole of gas collection measuring cylinder II 17 is connected with the C of T-valve IV 18 outlet, the top of base plate 20 is provided with two parallel vertical supports 15, in the middle of two vertical supports 15, be provided with a horizontal connecting link 14, the upper vertical of vertical supports 15 is fixed with conical flask support 10, conical flask support 10 is used for placing conical flask 11, the water filling port of conical flask 11 is connecting short grass tube 13, the gap of conical flask 11 is connecting long grass tube 12, described solution cucurbitula 22 is placed in constant water bath box 21, separate cucurbitula 22 tops and be provided with rain glass 1 and T-valve 2, the C outlet of T-valve 2 is connected with the A outlet of T-valve I 4 by polyethylene hose, the B outlet of T-valve I 4 is connected with the A outlet of T-valve II 6 by polyethylene hose, the B outlet of T-valve II 6 is communicated with the upper end air admission hole of gas collection measuring cylinder III 9 by polyethylene hose, the A outlet of T-valve III 16 is connected with short grass tube 13 by polyethylene hose, the B outlet of T-valve III 16 is connected with the A outlet of T-valve IV 18 by polyethylene hose, the B outlet of T-valve IV 18 is communicated with the bottom spillway hole of gas collection measuring cylinder I 3 by polyethylene hose.
Described solution cucurbitula 22 materials are teflon, and teflon has the feature of antiacid alkali resistant, anti-various organic solvents, is dissolved in hardly all solvents, and meanwhile, that teflon has is high temperature resistant, the characteristic of high pressure; This solution cucurbitula 22 can pack into and is greater than 5kg coal sample, and through gas pressure test, while bearing 1MPa pressure, impermeability is good.
The volume of described gas collection measuring cylinder I 3, gas collection measuring cylinder II 17 and gas collection measuring cylinder III 9 is 1000cm
3, the minimum scale of graduated cylinder is 10cm
3, gas volume measuring accuracy meets regulation in < < coal bed gas content assay method > > (GB/T19559-2008).
The measuring process of this desorption instrument is:
(1) in drill core samples of coal pulled or shale sample, at colliery coal driving or coal face, drill through fresh coal seam sample, roof and floor shale sample 5kg, pack into rapidly and separate in cucurbitula 22, airtight solution cucurbitula 22 as early as possible, keep T-valve 2 in closed condition, progressively tighten desorb cover, until hand has firm sense to be advisable, be sure not to tighten with HHT higher high tensile, in order to avoid screw thread discord causes dislocation or pushes up badly, cause separating cucurbitula 22 gas leakage.
(2) before desorption experiment, by the Temperature Setting of constant water bath box 21, be reservoir temperature, and make its temperature that reaches setting before experiment, and keep constant.
(3) be full of water successively to gas collection measuring cylinder I 3, gas collection measuring cylinder II 17 and gas collection measuring cylinder III 9, and testing fixture impermeability.Concrete operation step is, keep T-valve I 4 and T-valve II 6 in closed condition, T-valve III 16 and T-valve IV 18 are in A-B connected state, open the air release I 5 on gas collection measuring cylinder I 3 tops, by conical flask 11 to gas collection measuring cylinder I 3 water-fillings, it is full of after water, closes air release I 5, now decline explanation gas collection measuring cylinder I 3 impermeability are good automatically for liquid level; Then, open air release II 7, regulating three-way valve IV 18 is that A-C is communicated with, and by conical flask 11, to gas collection measuring cylinder II 17 water-fillings, it is full of after water, closes air release II 7, and checks gas collection measuring cylinder II 17 impermeability; Finally, open air release III 8, make T-valve III 16 for A-C is communicated with, by conical flask 11, to gas collection measuring cylinder III 9 water-fillings, it is full of after water, close air release III 8, and check gas collection measuring cylinder III 9 impermeability; When gas collection measuring cylinder I 3, gas collection measuring cylinder II 17 and gas collection measuring cylinder III 9 are all full of after water, in conical flask 11, also should there is the water of certain volume.
(4) keep air release I 5, air release II 7, air release III 8 in closed condition, make T-valve III 16 and T-valve IV 18 in A-B connected state, T-valve 2 and T-valve I 4 are communicated with and start desorption experiment in A-C, start timing, and now desorption gas enters gas collection measuring cylinder I 3.
(5) interval at regular intervals, desorption time t(min once accumulated in record) and accumulative solution pipette V(cm
3), before each reading, adjust conical flask 11 liquid levels identical with liquid level of measuring cylinder; Record environment temperature and atmospheric pressure at that time simultaneously; Read the time interval of desorption gas volume depending on separating cucurbitula 22 internal pressures.
(6) in desorption experiment process, when gas collection measuring cylinder I 3 will gassy, adjust T-valve I 4 and be that A-B is communicated with, T-valve II 6 is communicated with for A-C, T-valve IV 18 is A-C connection, now desorption gas enters gas collection measuring cylinder II 17; When if gas collection measuring cylinder II 17 will gassy, adjust T-valve II 6 for A-B is communicated with, T-valve III 16 enters gas collection measuring cylinder III 9 for A-C is communicated with desorption gas; In desorption experiment process, need to carry out gas sampling, the method for sampling is: the B outlet of T-valve 2 is connected with gas collection bag, adjusts T-valve 2 and be communicated with in A-B, treat gas collection 150cm
3left and right, adjusts T-valve 2 and is communicated with and can proceeds desorption experiment in A-C, and the gaseous sample of collection, send laboratory to carry out gas composition analysis by GB/T13610 in time.
(7) in certain hour interval, accumulative solution pipette increment is seldom time, and desorption experiment finishes, and closes T-valve 2.
(8) make respectively air release I 5, air release II 7, air release III 8 be connected with gas collection bag, then according to the method for operating in (3), in gas collection measuring cylinder I 3, gas collection measuring cylinder II 17 and gas collection measuring cylinder III 9, be full of water successively, gas in it is driven to respectively in gas collection bag simultaneously, and send in time laboratory to carry out gas composition analysis by GB/T13610 gas.
(9) repeat (4)～(8) and can carry out desorption experiment next time.
(10) in step (5), the accumulative solution pipette V of record is the desorption temperature in test site, the desorption quantity under atmospheric pressure conditions, by following formula, proofreaies and correct as the volume V under the status of criterion
0:
In formula: V
0for the gas volume under the status of criterion, T
0, p
0be respectively the temperature 273.15K(0 ℃ of mark under state), pressure 101.325KPa, temperature when T is desorption experiment, p is the atmospheric pressure in desorption experiment place.
H in coal-seam gas, shale gas component
2s, SO
2, CO
2gas is soluble in water, and gas collection measuring cylinder measurement records desorption gas volume and has deviation, can proofread and correct by method below:
Note ω
1in the gaseous sample gathering for step (6), except H
2s, SO
2, CO
2outward, other gas composition percentage sums, ω
2in gaseous sample for step (8) collection, except H
2s, SO
2, CO
2outward, other gas composition percentage sums, can calculate the actual stripping gas Va of sports school by following formula:
Claims (2)
1.
low gas content full-page proof amount corrosion resistant multifunctional desorption instrument, this desorption instrument comprises rain glass (1), T-valve (2), gas collection measuring cylinder I (3), T-valve I (4), air release I (5), T-valve II (6), air release II (7), air release III (8), gas collection measuring cylinder III (9), conical flask support (10), conical flask (11), long grass tube (12), short grass tube (13), connecting link (14), vertical supports (15), T-valve III (16), gas collection measuring cylinder II (17), T-valve IV (18), mount holder (19), base plate (20), constant water bath box (21) and solution cucurbitula (22), it is characterized in that, this desorption instrument is provided with a passive base plate (20), the bottom of base plate (20) is provided with two groups of parallel mount holders (19), and the top of base plate (20) is provided with the gas collection measuring cylinder I (3) of three parallel vertical placements, gas collection measuring cylinder II (17) and gas collection measuring cylinder III (9), gas collection measuring cylinder I (3), gas collection measuring cylinder II (17) and gas collection measuring cylinder III (9) top are respectively equipped with air release I (5), air release II (7) and air release III (8), the upper end air admission hole of gas collection measuring cylinder I (3) is connected with the C outlet of T-valve I (4), the upper end air admission hole of gas collection measuring cylinder II (17) is connected with the C outlet of T-valve II (6), the bottom spillway hole of gas collection measuring cylinder III (9) is connected with the C outlet of T-valve III (16), the bottom spillway hole of gas collection measuring cylinder II (17) is connected with the C outlet of T-valve IV (18), the top of base plate (20) is provided with two parallel vertical supports (15), in the middle of two vertical supports (15), be provided with a horizontal connecting link (14), the upper vertical of vertical supports (15) is fixed with conical flask support (10), conical flask support (10) is used for placing conical flask (11), the water filling port of conical flask (11) is connecting short grass tube (13), the gap of conical flask (11) is connecting long grass tube (12), described solution cucurbitula (22) is placed in constant water bath box (21).
2.
low gas content full-page proof amount corrosion resistant multifunctional desorption instrument according to claim 1, it is characterized in that, described solution cucurbitula (22) top is provided with rain glass (1) and T-valve (2), the C outlet of T-valve (2) is connected with the A outlet of T-valve I (4) by polyethylene hose, the B outlet of T-valve I (4) is connected with the A outlet of T-valve II (6) by polyethylene hose, the B outlet of T-valve II (6) is communicated with the upper end air admission hole of gas collection measuring cylinder III (9) by polyethylene hose, the A outlet of T-valve III (16) is connected with short grass tube (13) by polyethylene hose, the B outlet of T-valve III (16) is connected with the A outlet of T-valve IV (18) by polyethylene hose, the B outlet of T-valve IV (18) is communicated with the bottom spillway hole of gas collection measuring cylinder I (3) by polyethylene hose.
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| CN104614201A (en) * | 2015-02-13 | 2015-05-13 | 中国矿业大学(北京) | Method for measuring raw CO gas content of coal seam |
| CN105759008A (en) * | 2016-04-26 | 2016-07-13 | 贵州大学 | Measuring device and method for gas adsorption and desorption amount |
| CN107941650A (en) * | 2016-10-13 | 2018-04-20 | 河南理工大学 | A kind of coal bed gas and shale gas adsorption/desorption automatic measuring method and device |
| CN108913540A (en) * | 2018-05-15 | 2018-11-30 | 西安建筑科技大学 | A kind of test micro anaerobic fermentation gas collecting apparatus and method |
| CN109100259A (en) * | 2018-08-29 | 2018-12-28 | 中国科学院广州地球化学研究所 | A kind of shale gas generation resolver |
| CN109632570A (en) * | 2018-12-29 | 2019-04-16 | 青海煤炭地质0五勘探队 | A kind of Portable coal-seam gas, shale gas gas content |
| CN110542623A (en) * | 2019-09-24 | 2019-12-06 | 中国矿业大学 | Automatic measuring device and method for gas content of coal seam in coal mine |
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| CN104614201A (en) * | 2015-02-13 | 2015-05-13 | 中国矿业大学(北京) | Method for measuring raw CO gas content of coal seam |
| CN105759008A (en) * | 2016-04-26 | 2016-07-13 | 贵州大学 | Measuring device and method for gas adsorption and desorption amount |
| CN107941650A (en) * | 2016-10-13 | 2018-04-20 | 河南理工大学 | A kind of coal bed gas and shale gas adsorption/desorption automatic measuring method and device |
| CN108913540A (en) * | 2018-05-15 | 2018-11-30 | 西安建筑科技大学 | A kind of test micro anaerobic fermentation gas collecting apparatus and method |
| CN109100259A (en) * | 2018-08-29 | 2018-12-28 | 中国科学院广州地球化学研究所 | A kind of shale gas generation resolver |
| CN109632570A (en) * | 2018-12-29 | 2019-04-16 | 青海煤炭地质0五勘探队 | A kind of Portable coal-seam gas, shale gas gas content |
| CN110542623A (en) * | 2019-09-24 | 2019-12-06 | 中国矿业大学 | Automatic measuring device and method for gas content of coal seam in coal mine |
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