CN103323363B - Reaction rate testing apparatus of carbon dioxide and main mineral matters in the coal - Google Patents
Reaction rate testing apparatus of carbon dioxide and main mineral matters in the coal Download PDFInfo
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- CN103323363B CN103323363B CN201310227444.4A CN201310227444A CN103323363B CN 103323363 B CN103323363 B CN 103323363B CN 201310227444 A CN201310227444 A CN 201310227444A CN 103323363 B CN103323363 B CN 103323363B
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Abstract
The invention discloses a reaction rate testing apparatus of carbon dioxide and main mineral matters in the coal, and the testing apparatus comprises a gas injecting and vacuum-pumping system, a reaction controlling system, an ion testing system, a computer-controlled data monitoring system and a carbon dioxide gas processing system, wherein the gas injecting and vacuum-pumping system is connected to the reaction controlling system through a first air pipe and a first liquid pipe; the reaction controlling system is connected to the ion testing system through a second liquid pipe; the carbon dioxide gas processing system is connected to the ion testing system; the gas injecting and vacuum-pumping system, the reaction controlling system and the ion testing system are connected to the computer-controlled data monitoring system through a data line respectively. By the invention, the reaction rate of carbon dioxide and the main mineral matters in the coal at different temperature under different pressure and different pH values can be tested. By the invention, ion change in the process of reaction can be tested and traced, ion change of single mineral and ion change rule of a plurality of minerals in simultaneous reaction can be clarified.
Description
Technical field
The invention belongs to Safety of Coal Mine Production technical field, particularly relate to essential mineral qualitative response rate experiments proving installation in a kind of carbon dioxide injection and coal.
Background technology
In recent years, the greenhouse gases that mankind's daily life and commercial production are discharged in air increase gradually, and in the greenhouse gases of mankind's discharge, more than 60% is carbon dioxide, and the greenhouse effect caused by CO2 emission cause the concern of people day by day.In order to reduce carbon dioxide to the discharge capacity in air, there has been proposed the thought to land burial carbon dioxide.Coal-seam gas, as a kind of clear energy sources, more and more receives the concern of people, and people put in the exploratory development of coal-seam gas one after another.But coal seam reservoirs low pressure, hypotonic feature cause in the aerogenesis effect of some regional coal bed gas wells unsatisfactory.In order to improve the aerogenesis effect of coal bed gas well, people are from the Adsorption of coal body to carbon dioxide and methane, namely when other conditions are identical, the adsorbance of coal to carbon dioxide of metamorphic grade of the same race is greater than the adsorbance to methane, under the guidance of this thought, propose injecting carbon dioxide in coal seam, the carbon dioxide of part can be sealed on the one hand up for safekeeping, the gas production rate of coal bed gas well can be improved on the other hand, there is good economic benefit and social benefit.
Behind carbon dioxide injection coal seam, can react with the water in coal seam and generate carbonic acid, some mineral matters that carbonic acid ionizes out in hydrogen ion and coal react.These mineral matters mainly comprise clay mineral and the carbonate minerals such as kalzit, rauhkalk such as smalite, illite, smectite, chlorite.When the clay minerals such as carbonic acid and smalite, illite, smectite, chlorite react, part can precipitate, and part can be dissolved, and the material dissolved occurs during reaction, the Fracture Width in coal seam is increased, improves the flow conductivity in coal seam; But the precipitation that reaction generates, may block again the part crack in coal, make the flow conductivity in coal seam decline.These mineral, due to the difference of inner structure, ion composition etc., cause reaction rate when reacting from carbonic acid different, and the time that precipitation and dissolving occur is also different, and these all cause the otherness of coal seam reservoirs flow conductivity, and then affect the gas production rate of coal bed gas well.
At present, people are for carbon dioxide injection, its coal adsorption swelling caused the replacement result of methane and carbon dioxide injection that focuses on in the impact of permeability more, and it is less to the research of the change aspect of reacting the permeability caused after carbon dioxide injection with mineral matter, and the reaction rate of these materials is different, cause the dissolution time of material, settling time difference, and then cause the impact of coal reservoir fracture system different.If be aware of the reaction rate of these materials under different temperatures, different pressures, different acidity, just can have dissolving and precipitation and understand more clearly, and then have the time its row of returning after the implantation and hold more clearly, reduce the injury of precipitation to coal reservoir fracture as far as possible, improve coal-seam gas well capacity.But at present, also do not have a kind of instrument can test the reaction rate of these materials under different temperatures, different pressures, different acidity, based on this, this designs essential mineral qualitative response rate test device in a kind of carbon dioxide injection and coal, and the Changing Pattern to the permeability for causing with the reaction of mineral matter after the carbon dioxide injection of coal seam is studied and the mining of coal bed gas well provides theoretical direction.
Summary of the invention
The object of the invention is for learning in different temperatures at present, under the conditions such as different reservoir pressure after carbon dioxide injection with the substance dissolves caused during fluorine in coal qualitative response and settling time, and then the permeability variation rule caused is failed to understand, the production of coal bed gas well is instructed in possible errors, the final problem affecting its gas production rate, essential mineral qualitative response rate test device in a kind of carbon dioxide injection and coal is provided, this device can test different temperatures, the reaction rate of different minerals matter in carbon dioxide injection and coal under different pressures condition, for the Changing Pattern of permeability after carbon dioxide injection is studied, the injection parameter of the coal bed gas well of carbon dioxide injection and mining working system are formulated and are provided theoretical direction.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: essential mineral qualitative response rate experiments proving installation in carbon dioxide injection and coal, comprise gas inject and pumped vacuum systems, RCS, ion test macro, computing machine controls data monitoring system and carbon dioxide disposal system, gas inject and pumped vacuum systems are connected with RCS with the first liquid pipe 37 by the first tracheae 45, RCS is connected with ion test macro by the second liquid pipe 38, carbon dioxide disposal system is connected with ion test macro, gas inject and pumped vacuum systems, RCS controls data monitoring system with ion test macro respectively by data line 39 and computing machine and is connected.
Described gas inject and pumped vacuum systems comprise CO 2 high pressure gas cylinder 2, helium tank 1 and distilled water tank 7, CO 2 high pressure gas cylinder 2 is connected with the air intake opening of the first tracheae 45 respectively with the gas outlet of helium tank 1, first tracheae 45 is provided with first-class gauge 5 successively along airflow direction, air compressor machine 6, there is the vacuum pump 11 of the first valve 12, second valve 13, acidometer 14 and pressure transducer 15, the liquid outlet of distilled water tank 7 is connected with the inlet of the first liquid pipe 37, first liquid pipe 37 is provided with the 3rd valve 8 successively along flow direction, second gauge 9, water pump 10 and the 4th valve 26, the gas outlet of CO 2 high pressure gas cylinder 2 and helium tank 1 is respectively equipped with the 5th valve 3 and the 6th valve 4, 5th valve 3, the 6th valve 4, first-class gauge 5, air compressor machine 6, the 3rd valve 8, second gauge 9, water pump 10, the 4th valve 26, second valve 13 control data monitoring system with pressure transducer 15 respectively by described data line 39 and computing machine and are connected.
Described RCS comprises high-pressure reactor 16, stabilizing hydraulic pressure machine 24, radiator valve 22, firm banking 23, high-pressure reactor 16 is located on firm banking 23, radiator valve 22 is located in high-pressure reactor 16, columniform reaction chamber 17 is provided with in high-pressure reactor 16, the back up pad 40 with through hole is provided with in reaction chamber 17, back up pad 40 is evenly equipped with grid framework 18 penetrating up and down, the mould be made up of aluminium nethike embrane is provided with in grid framework 18, upper annular plate 25 is provided with successively from top to bottom below back up pad 40, portable plate 21 and lower annular plate 41, portable plate 21 is with reaction chamber 17 inner wall sealing and be slidably connected, the clutch end of stabilizing hydraulic pressure machine 24 is connected with portable plate 21, first liquid pipe 37 is connected with the reaction chamber 17 above portable plate 21 respectively with the second liquid pipe 38, stabilizing hydraulic pressure machine 24 controls data monitoring system by described data line 39 with computing machine and is connected.
Described ion test macro comprises the 3rd liquid pipe 42 connected by head and the tail, 3rd liquid pipe 42 is connected with water quality tester 31 in turn, inductive coupling plasma emission spectrograph 32, 7th valve 33, ebullator 34 and the 8th valve 30, second liquid pipe 38 is provided with the 9th valve 20 and the 3rd flowmeter 19, second liquid pipe 38 is connected on the 3rd liquid pipe 42 between ebullator 34 and the 8th valve 30, second liquid pipe 38 is connected with test fluid evacuated tube 46 at the endpiece of ebullator 34, test fluid evacuated tube 46 is provided with test fluid exhaust-valve 35, 9th valve 20, 3rd flowmeter 19, water quality tester 31, inductive coupling plasma emission spectrograph 32, 7th valve 33, ebullator 34 controls data monitoring system with the 8th valve 30 respectively by described data line 39 and computing machine and is connected.
Described carbon dioxide disposal system comprises the alkali lye bottle 29 being loaded with alkali lye, and alkali lye bottle 29 is connected with the inflow point of the 4th valve 26 on the first liquid pipe 37 by the second tracheae 43, and the second tracheae 43 is provided with the tenth valve 27.
On described first liquid pipe 37, the inflow point of the 4th valve 26 is connected with reactant liquor evacuated tube 44, and reactant liquor evacuated tube 44 is provided with reactant liquor exhaust-valve 28.
It is computing machine 36 that described computing machine controls data monitoring system.
Adopt technique scheme, gas inject and pumped vacuum systems are mainly used to simulated field carbon dioxide injection, are pressure when reactor provides reaction and carbon dioxide air source, reactant liquor etc.RCS mainly contains effect of two aspects, and first: the mass change before and after reacting under the conditions such as differential responses time, pH value, temperature single mineral matter, multi mineral is observed and tested; Second: the change that the pH value of solution in course of reaction can be recorded.The radiator valve energy set temperature of RCS, makes various reaction carry out under simulated field reservoir temperature condition, and high-pressure reactor is used for simulating the reaction of carbon dioxide injection and minerals in coal, and can control beginning and the termination of reaction.Pressure transducer carries out Real-Time Monitoring to the pressure in course of reaction.Acidometer is measured the potential of hydrogen of solution in course of reaction.Ion test macro is mainly used to test the ion that carbon acid solution and mineral matter react stripping.Computing machine controls data monitoring display system and mainly the data such as the pressure of the real time record in each system, flow, time is imported into computing machine and carried out analyzing and processing, to control the running of each system and to show result.Carbon dioxide disposal system is mainly used to the carbon dioxide after processing reaction, in order to avoid its contaminated environment.
The present invention can test the reaction rate of main mine material in different temperatures, different pressures, different pH condition carbon dioxide and coal.The present invention can test the ion change in course of reaction and follow the tracks of, and finds out ion Changing Pattern during ion change and the multi mineral simultaneous reactions of single mineral.Automaticity of the present invention is high, controls primarily of computing machine, simple to operation, can control carrying out and the termination of reaction at any time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view in Fig. 1 in A place reaction chamber.
Embodiment
As depicted in figs. 1 and 2, essential mineral qualitative response rate experiments proving installation in carbon dioxide injection of the present invention and coal, comprise gas inject and pumped vacuum systems, RCS, ion test macro, computing machine controls data monitoring system and carbon dioxide disposal system, gas inject and pumped vacuum systems are connected with RCS with the first liquid pipe 37 by the first tracheae 45, RCS is connected with ion test macro by the second liquid pipe 38, carbon dioxide disposal system is connected with ion test macro, gas inject and pumped vacuum systems, RCS controls data monitoring system with ion test macro respectively by data line 39 and computing machine and is connected.
Described gas inject and pumped vacuum systems comprise CO 2 high pressure gas cylinder 2, helium tank 1 and distilled water tank 7, CO 2 high pressure gas cylinder 2 is connected with the air intake opening of the first tracheae 45 respectively with the gas outlet of helium tank 1, first tracheae 45 is provided with first-class gauge 5 successively along airflow direction, air compressor machine 6, there is the vacuum pump 11 of the first valve 12, second valve 13, acidometer 14 and pressure transducer 15, the liquid outlet of distilled water tank 7 is connected with the inlet of the first liquid pipe 37, first liquid pipe 37 is provided with the 3rd valve 8 successively along flow direction, second gauge 9, water pump 10 and the 4th valve 26, the gas outlet of CO 2 high pressure gas cylinder 2 and helium tank 1 is respectively equipped with the 5th valve 3 and the 6th valve 4, 5th valve 3, the 6th valve 4, first-class gauge 5, air compressor machine 6, the 3rd valve 8, second gauge 9, water pump 10, the 4th valve 26, second valve 13 control data monitoring system with pressure transducer 15 respectively by described data line 39 and computing machine and are connected.
Helium tank 1 is mainly used to the impermeability of checking experiment device.CO 2 high pressure gas cylinder 2 mainly provides carbon dioxide; Distilled water tank 7 is rectangular parallelepiped, and length is respectively 400mm × 300mm × 200mm, is inside loaded with distilled water, is mainly used to provide water source.
First-class gauge 5 is gas meter, is used for recording the volume being injected into carbon dioxide in RCS; Second gauge 9 is liquid flowmeter, is used for recording the volume being injected into distilled water in RCS.
Above-mentioned valve comprises manually-operated gate and high-precision PID valve.Manually-operated gate plays the effect of protection, is used for the opening and closing carrying out testing.High-precision PID valve is connected with computer control system, by arranging pressure reduction and coding, by the open and close of computer control system by-pass valve control.
Water pump 10 and air compressor machine 6 provide power when distilled water and gas inject respectively.Air in RCS and pipeline is mainly evacuated by vacuum pump 11, in order to avoid the air in reactor and pipeline impacts experiment.
Described RCS comprises high-pressure reactor 16, stabilizing hydraulic pressure machine 24, radiator valve 22, firm banking 23, high-pressure reactor 16 is located on firm banking 23, radiator valve 22 is located in high-pressure reactor 16, columniform reaction chamber 17 is provided with in high-pressure reactor 16, the back up pad 40 with through hole is provided with in reaction chamber 17, back up pad 40 is evenly equipped with grid framework 18 penetrating up and down, the mould be made up of aluminium nethike embrane is provided with in grid framework 18, upper annular plate 25 is provided with successively from top to bottom below back up pad 40, portable plate 21 and lower annular plate 41, portable plate 21 is with reaction chamber 17 inner wall sealing and be slidably connected, the clutch end of stabilizing hydraulic pressure machine 24 is connected with portable plate 21, first liquid pipe 37 is connected with the reaction chamber 17 above portable plate 21 respectively with the second liquid pipe 38, stabilizing hydraulic pressure machine 24 controls data monitoring system by described data line 39 with computing machine and is connected.
High-pressure reactor 16 is made up, in cylindrical shape of high voltage bearing stainless steel material.Diameter is 120mm, and height is 300mm.Back up pad 40 is fixed on the centre position of reaction chamber 17, and reaction chamber 17 is divided into upper and lower two parts, back up pad 40 is distributed with the circular port that diameter is 2mm.In the first half of back up pad 40, be welded with 16 grid frameworks 18, the length of each grid of grid framework 18 is respectively 21mm × 21mm × 110mm, has many apertures, liquids and gases can be passed in and out freely in the middle of each grid.In each grid, place the mould of aluminium nethike embrane lattice composition, this mould is made up of aluminium fiber web material, mould is also rectangular shape, its length is respectively 15mm × 15mm × 100mm, mould has the hole of 15um size distilled water and ion can be made to free in and out, but mineral matter can not free in and out.Be positioned in mould by load weighted for requirement of experiment mineral matter during reaction, be then positioned in grid by mould, having reacted rear mold can take out.In mould, mineral matter quality can be dried weighing and obtained.
30mm and 130mm place below fixing back up pad 40, have external diameter to be 120mm respectively, internal diameter is 80mm, and thickness is upper annular plate 25 and the lower annular plate 41 of 8mm, and upper annular plate 25 and lower annular plate 41 are all welded on the inwall of high-pressure reactor 16.Between two upper annular plates 25 and lower annular plate 41, there is a thickness to be the up and down portable plate 21 of the energy of 15mm, wrapped up by gum cover outside portable plate 21, the diameter of portable plate 21 and reaction chamber 17 equal diameters, portable plate 21 is connected with stabilizing hydraulic pressure machine 24, can play the effect sealed high-pressure reactor 16.Upper annular plate 25 and lower annular plate 41 are mainly used to the range determining intermediate active plate 21, play the effect protected the reaction chamber 17 on top.
Stabilizing hydraulic pressure machine 24 is connected with portable plate 21, can act on movable plate 21, and movable plate 21 is moved between upper annular plate 25 and lower annular plate 41.The height of liquid in high-pressure reactor 16 is controlled by controlling the lifting of portable plate 21, and then the beginning and termination that whether acid solution are contacted with mineral matter control to react.
Be provided with a water inlet in the left side of the medium position of high-pressure reactor 16, this water inlet is connected with the first liquid pipe 37, mainly allows the liquid of reaction enter.The right side of position is provided with a water delivering orifice in the middle, and this water delivering orifice is connected with the second liquid pipe 38, mainly allows the liquid of reaction enter ion test macro and tests, reinjected in high-pressure reactor 16 after having tested by ebullator 34.
Radiator valve 22 mainly control temperature, enables reaction carry out under reservoir temperature condition.Acidometer 14 adopts the acidometer of withstand voltage combination electrode, can carry out Real-Time Monitoring to the pH value in course of reaction.
Pressure transducer 15 is connected with computer control system, carries out record to pressure change in course of reaction.High-pressure reactor 17 to be fixed on the bottom in radiator valve 22 by firm banking 23 by four screws, high-pressure reactor 16 is fixed when testing.
Described ion test macro comprises the 3rd liquid pipe 42 connected by head and the tail, 3rd liquid pipe 42 is connected with water quality tester 31 in turn, inductive coupling plasma emission spectrograph 32, 7th valve 33, ebullator 34 and the 8th valve 30, second liquid pipe 38 is provided with the 9th valve 20 and the 3rd flowmeter 19, second liquid pipe 38 is connected on the 3rd liquid pipe 42 between ebullator 34 and the 8th valve 30, second liquid pipe 38 is connected with test fluid evacuated tube 46 at the endpiece of ebullator 34, test fluid evacuated tube 46 is provided with test fluid exhaust-valve 35, 9th valve 20, 3rd flowmeter 19, water quality tester 31, inductive coupling plasma emission spectrograph 32, 7th valve 33, ebullator 34 controls data monitoring system with the 8th valve 30 respectively by described data line 39 and computing machine and is connected.
Water quality tester 31 is main to Fe
2+, Fe
3+, Ca
2+, Mg
2+, Na
+test Deng conventional ion.Inductive coupling plasma emission spectrograph 32(ICP-OES) mainly the trace elements such as Mn, Cr, Co, Ni are tested.Ebullator 34 provides the reactant liquor tested to refill the power of high-pressure reactor 16, and reactant liquor is recycled, and reduces experimental error.The data of ion test macro are real-time transmitted to computing machine and control data monitoring system.
Described carbon dioxide disposal system comprises the alkali lye bottle 29 being loaded with alkali lye, and alkali lye bottle 29 is connected with the inflow point of the 4th valve 26 on the first liquid pipe 37 by the second tracheae 43, and the second tracheae 43 is provided with the tenth valve 27.On described first liquid pipe 37, the inflow point of the 4th valve 26 is connected with reactant liquor evacuated tube 44, and reactant liquor evacuated tube 44 is provided with reactant liquor exhaust-valve 28.
Be loaded with alkali lye in alkali lye bottle 29, reacted carbon dioxide is passed in alkali lye, and by the effect with alkali lye, carbon dioxide is processed.
It is computing machine 36 that described computing machine controls data monitoring system.Computing machine controls data monitoring display system primarily of computer control system and data monitoring display system two subsystem compositions.
Computing machine controls data monitoring system can the open and close of by-pass valve control, and select module containing mineral, can select different mineral, arrange different ion test intervals; Data monitoring display system, by ion test result data under ion test macro transmission differential responses, according to reaction kinetics principle, calculates the reaction rate of different minerals.
React for carbon acid solution and potassium feldspar below, illustrative experiment operation steps:
(1) experimental provision is connected
According to the Experimental equipment of Fig. 1, the various piece of experimental provision is connected.
(2) preparation of the mineral matter reacted and weighing
Prepare uniform particle sizes, the potassium feldspar mineral of particle diameter about 1mm, and take 10g potassium feldspar mineral preparing experiment.
(3) placement of reactive mineral
Potassium feldspar mineral are placed into uniformly in 16 moulds, mould are positioned in 16 grids in high-pressure reactor 16 in reaction chamber 17.
(4) airtight test
By computing machine 36, open the 5th valve 3, second valve 13, in high-pressure reactor 16, inject helium, stop when pressure in high-pressure reactor 16 is greater than experimental design pressure injecting, close the 5th valve 3, second valve 13, with testing fixture impermeability.
(5) response parameter is arranged
In computer control system, select reactive mineral to be potassium feldspar.The temperature of reaction is set.Such as: reservoir temperature is 25 DEG C, namely arranging temperature of reaction is 25 DEG C.The pressure of reaction is set.Such as reservoir pressure is 5MPa, then the pressure arranging reaction is 5MPa.Reactant liquor reaction time interval and number of times are set.Such as: the time interval of test reaction liquid ion is 10min, namely sets interval as 10min; Reaction times is 15 times, and namely arranging reaction times is 15 times.
(6) reaction experiment test
A. vacuumize
First valve 12, second valve 13, the 9th valve 20 are opened, uses vacuum pump 11 that system and pipeline are vacuumized 1h ~ 3h.
B. distilled water and carbon dioxide inject
By computer control system, regulate stabilizing hydraulic pressure machine 24, portable plate 21 is moved to lower annular plate 41 place, open valve the 3rd valve 8, the 4th valve 26, certain volume distilled water is injected in high-pressure reactor 16, after having injected, valve-off 8, the 4th valve 26.
By computing machine 36, regulate stabilizing hydraulic pressure machine 24, portable plate 21 is moved to upper annular plate 25 place, distilled water contacts with mineral matter, open valve the 6th valve 4, second valve 13, to injecting carbon dioxide gas in high-pressure reactor 16 simultaneously, when pressure reaches design pressure, the 6th valve 4, second valve 13 is closed, and stops injecting.
C. ion test
When reaching the reaction time of setting when reacted, test reaction liquid intermediate ion concentration.During test, the 9th valve 20, the 8th valve 30 can be opened by computer control system, inject the reactant liquor of 0.5L in ion test macro, and the 9th valve 20, the 8th valve 30 are closed; After ion has been tested, the 7th valve 33, the 9th valve 20 are opened, and are acted on by ebullator 34, and reactant liquor is injected in high-pressure reactor 16 again, and after having injected, the 7th valve 33, the 9th valve 20 are closed.During every secondary ion test, computer control system can regulate stabilizing hydraulic pressure machine 24, portable plate 21 is made to move to lower annular plate 41 place, reactant liquor is separated with mineral matter, reaction terminating, and reactant liquor is injected into after in high-pressure reactor 16 again, portable plate 21 moves to upper annular plate 25 place, reactant liquor contacts with mineral matter, and reaction starts, and reduces experimental error.
D. when reacted between reach setting reaction time after, the gas in emptying reaction gas and pressure, take out the mineral in mould, carry out drying its weight of rear test, line item of going forward side by side.
E. circulate above step, tests the weight of the ion after each reaction time and solid matter, until reach the number of times of test.
The process of f, carbon dioxide
After having tested, open the 4th valve 26, reactant liquor exhaust-valve 28, first by reactant liquor emptying, then off-response liquid exhaust-valve 28, opens the tenth valve 27, and be passed into by gas in alkali lye bottle 29, carbon dioxide is absorbed.
G, data process&analysis
After having tested, data monitoring display system, according to the experimental results collected, calculates the reaction rate of carbon acid solution and potassium feldspar.Mineral matter in the inner mold of reaction under high pressure room 16 is taken out, dries, weigh, calculate carbon acid solution to the corrosion rate of potassium feldspar.
H, equipment Removal and arrangement
Finally remove and arrange each several part experimental provision.
Claims (5)
1. essential mineral qualitative response rate experiments proving installation in carbon dioxide injection and coal, it is characterized in that: comprise gas inject and pumped vacuum systems, RCS, ion test macro, computing machine controls data monitoring system and carbon dioxide disposal system, gas inject and pumped vacuum systems are connected with RCS with the first liquid pipe (37) by the first tracheae (45), RCS is connected with ion test macro by the second liquid pipe (38), carbon dioxide disposal system is connected with ion test macro, gas inject and pumped vacuum systems, RCS controls data monitoring system with ion test macro respectively by data line (39) and computing machine and is connected,
Described gas inject and pumped vacuum systems comprise CO 2 high pressure gas cylinder (2), helium tank (1) and distilled water tank (7), CO 2 high pressure gas cylinder (2) is connected with the air intake opening of the first tracheae (45) respectively with the gas outlet of helium tank (1), first tracheae (45) is provided with first-class gauge (5) successively along airflow direction, air compressor machine (6), there is the vacuum pump (11) of the first valve (12), second valve (13), acidometer (14) and pressure transducer (15), the liquid outlet of distilled water tank (7) is connected with the inlet of the first liquid pipe (37), first liquid pipe (37) is provided with the 3rd valve (8) successively along flow direction, second gauge (9), water pump (10) and the 4th valve (26), the gas outlet of CO 2 high pressure gas cylinder (2) and helium tank (1) is respectively equipped with the 5th valve (3) and the 6th valve (4), 5th valve (3), the 6th valve (4), first-class gauge (5), air compressor machine (6), the 3rd valve (8), second gauge (9), water pump (10), the 4th valve (26), the second valve (13) control data monitoring system with pressure transducer (15) respectively by described data line (39) and computing machine and are connected,
Described RCS comprises high-pressure reactor (16), stabilizing hydraulic pressure machine (24), radiator valve (22), firm banking (23), high-pressure reactor (16) is located on firm banking (23), radiator valve (22) is located in high-pressure reactor (16), columniform reaction chamber (17) is provided with in high-pressure reactor (16), the back up pad (40) with through hole is provided with in reaction chamber (17), back up pad (40) is evenly equipped with grid framework (18) penetrating up and down, grid framework is provided with the mould be made up of aluminium nethike embrane in (18), back up pad (40) below is provided with upper annular plate (25) from top to bottom successively, portable plate (21) and lower annular plate (41), portable plate (21) and reaction chamber (17) inner wall sealing are also slidably connected, the clutch end of stabilizing hydraulic pressure machine (24) is connected with portable plate (21), first liquid pipe (37) and the second liquid pipe (38) are connected with the reaction chamber (17) of portable plate (21) top respectively, stabilizing hydraulic pressure machine (24) controls data monitoring system by described data line (39) and computing machine and is connected.
2. essential mineral qualitative response rate experiments proving installation in carbon dioxide injection according to claim 1 and coal, it is characterized in that: described ion test macro comprises the 3rd liquid pipe (42) connected by head and the tail, 3rd liquid pipe (42) is connected with water quality tester (31) in turn, inductive coupling plasma emission spectrograph (32), 7th valve (33), ebullator (34) and the 8th valve (30), second liquid pipe (38) is provided with the 9th valve (20) and the 3rd flowmeter (19), second liquid pipe (38) is connected on the 3rd liquid pipe (42) between ebullator (34) and the 8th valve (30), second liquid pipe (38) is connected with test fluid evacuated tube (43) at the endpiece of ebullator (34), test fluid evacuated tube (43) is provided with test fluid exhaust-valve (35), 9th valve (20), 3rd flowmeter (19), water quality tester (31), inductive coupling plasma emission spectrograph (32), 7th valve (33), ebullator (34) controls data monitoring system with the 8th valve (30) respectively by described data line (39) and computing machine and is connected.
3. essential mineral qualitative response rate experiments proving installation in carbon dioxide injection according to claim 2 and coal, it is characterized in that: described carbon dioxide disposal system comprises the alkali lye bottle (29) being loaded with alkali lye, alkali lye bottle (29) is connected by the inflow point of upper 4th valve (26) of the second tracheae (43) and the first liquid pipe (37), and the second tracheae (43) is provided with the tenth valve (27).
4. essential mineral qualitative response rate experiments proving installation in carbon dioxide injection according to claim 3 and coal, it is characterized in that: the inflow point of upper 4th valve (26) of described first liquid pipe (37) is connected with reactant liquor evacuated tube (44), and reactant liquor evacuated tube (44) is provided with reactant liquor exhaust-valve (28).
5. essential mineral qualitative response rate experiments proving installation in carbon dioxide injection according to claim 4 and coal, is characterized in that: it is computing machine (36) that described computing machine controls data monitoring system.
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| CN202033252U (en) * | 2011-04-15 | 2011-11-09 | 河南理工大学 | Simulation test system for fracture system development in coal metamorphism |
| CN102621043A (en) * | 2012-03-31 | 2012-08-01 | 中联煤层气有限责任公司 | Device for testing corrosion performance of carbon dioxide injection to coal rocks and detection method |
| CN103132971A (en) * | 2013-03-11 | 2013-06-05 | 河南理工大学 | Test simulating device for improving recovery rate of coal bed methane by injecting carbon dioxide |
| CN203299077U (en) * | 2013-06-08 | 2013-11-20 | 河南理工大学 | Injected carbon dioxide and coal essential mineral reaction rate experiment testing device |
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