CN106645588A - Ground tester for internal gases of coal cores and testing method of ground tester - Google Patents
Ground tester for internal gases of coal cores and testing method of ground tester Download PDFInfo
- Publication number
- CN106645588A CN106645588A CN201710029135.4A CN201710029135A CN106645588A CN 106645588 A CN106645588 A CN 106645588A CN 201710029135 A CN201710029135 A CN 201710029135A CN 106645588 A CN106645588 A CN 106645588A
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- Prior art keywords
- gas
- analyser
- control valve
- coal
- sensor
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- 239000007789 gas Substances 0.000 title claims abstract description 169
- 239000003245 coal Substances 0.000 title claims abstract description 90
- 238000012360 testing method Methods 0.000 title claims description 15
- 238000004458 analytical method Methods 0.000 claims abstract description 59
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 50
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 42
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 36
- 238000002329 infrared spectrum Methods 0.000 claims description 23
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 18
- 239000001569 carbon dioxide Substances 0.000 claims description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 13
- 230000007306 turnover Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 8
- 241000894007 species Species 0.000 claims description 8
- 241000883990 Flabellum Species 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 230000037452 priming Effects 0.000 claims description 3
- 241000790917 Dioxys <bee> Species 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000010998 test method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
Abstract
A ground tester for internal gases of coal cores comprises an analysis trolley and a furcation joint. The analysis trolley is of a cabinet structure, and the interior of the analysis trolley is of a frame plate structure. Two wheels are arranged on one side of the bottom of the analysis trolley. Two support cushion blocks are arranged on the other side of the bottom of the analysis trolley. A turning plate and a handle are arranged on the upper portion of the outer side of the analysis trolley. The lower lateral side of the turning plate is hinged to the analysis trolley. The top of the analysis trolley is open. A cover plate and an opening and closing plate are arranged at the opening position of the top of the analysis trolley. The cover plate is connected to the top of the analysis trolley through bolts. One side of the opening and closing plate is hinged to the cover plate through hinges, and the other side of the opening and closing plate is connected to the upper edge of the turning plate through a buckle. The ground tester has the advantages of reasonableness in design, capability of accurately measuring the content of gases such as small free gases and in-coal adsorbed gases under formation conditions, and crucial significance in reserves predication and development mode research.
Description
Technical field
The present invention relates to a kind of coal interior portion gas ground test device and its method of testing.
Background technology
Coal interior portion gas is the general name of the gas such as free gas and adsorbed gas in coal seam.In recent years, due to energy demand
Increasingly increase and conventional gas and oil resource recoverable reserves successively decreases year by year, therefore one of main exploitation object from now on is coal bed gas, together
When exploiting coal bed methane can ensure the safety of coal production again, improve the economic benefit of coal production.Coal bed gas is sayed,
The content of the gases such as the little free gas of formation condition and adsorbed gas can be accurately measured respectively, for prognostic reserves and research and development side
Formula all has decisive meaning.
At present coal interior portion gas ground test device and its method of testing are substantially for the unification of coal interior portion gas
Measure or condition of normal pressure under measure, all relatively cumbersome for the device for measuring respectively, motility is not enough, at the scene all
Do not reach convenient movement and strata pressure is measured respectively, but gas demand, long range pressurize traffic condition are surveyed for actually coring
Complicated, high cost is required, field measurement apparatus are heavy or can not measure respectively, and acquired results are unable to actual response formation condition
The concrete content of the gases such as free gas, adsorbed gas, is unsatisfactory for surveying gas demand.
The content of the invention
The present invention is in order to solve weak point of the prior art, there is provided a kind of simple structure, it is easy to operate, can complete
The coal interior portion gas ground test device and its method of testing of adjustment water pump height.
To solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：Coal interior portion gas ground test device, bag
Analysis dolly and Y connection are included, analysis dolly is body structure, and analysis car interior is frame plate structure, analyzes the bottom of dolly
Portion side is provided with two wheels, and the opposite side for analyzing dolly bottom is provided with two pieces of lip blocks, and the outer upper for analyzing dolly sets
The lower side for having turnover panel and handle, turnover panel analyzes the open top of dolly along being hinged on analysis dolly, analyzes the top of dolly
Open-mouth is provided with cover plate and opening-closing plate, and cover plate is bolted in analysis car top, and the side of opening-closing plate is cut with scissors by hinge
Connect on the cover board, the opposite side of opening-closing plate is connected by buckle with turnover panel upper edge；Analyze little in-car and be provided with vacuum pump, pressure break
Gas analyser in cylinder, portable computer, accumulator, free gass analyser and coal, gas point in free gass analyser and coal
Analyzer is bolted on the bottom of analysis dolly, and vacuum pump and pressure break cylinder are fixed on analysis by quick detachable coupling assembly
Dolly bottom, accumulator is placed in coal on gas analyser, and portable computer is placed on free gass analyser, portable computer
Positioned at the inner side of turnover panel, accumulator is connected by electric wire with portable computer；
The gas outlet of vacuum pump is connected with exhaust tube, and the gas outlet of exhaust tube is divided respectively by two suction branches with free gass
Gas analyser connection in analyzer and coal, exhaust tube is provided with the first control valve, connects the suction branch of free gass analyser
The second control valve is provided with, the suction branch for connecting gas analyser in coal is provided with the 3rd control valve；
The side of analysis dolly is provided with side by side drain pipe and air inlet pipe, the gas outlet of air inlet pipe by two air intake branches respectively with
Gas analyser connection in free gass analyser and coal, the air intake branch for connecting free gass analyser is provided with the 4th control
Valve, the air intake branch for connecting gas analyser in coal is provided with the 5th control valve, and the inlet of drain pipe is connected on pressure break cylinder,
Drain pipe is provided with the 6th control valve and first pressure sensor, and feed tube is also associated with pressure break cylinder, and feed tube is connected with note
Liquid pump, feed tube is provided with the 7th control valve, and the liquid outlet of drain pipe and the air inlet of air inlet pipe are connected with Y connection；
Y connection includes air inlet semi-circular tube and pressure break semi-circular tube, and pressure break semicircle length of tube enters more than the length of air inlet semi-circular tube
The gas outlet of gas semi-circular tube flushes with the inlet of pressure break semi-circular tube, and the liquid outlet of drain pipe connects with the inlet of pressure break semi-circular tube
Connect, the air inlet of air inlet pipe is connected with the gas outlet of air inlet semi-circular tube, outside air inlet semi-circular tube and pressure break semi-circular tube rotation is arranged with
Tight pipe, the side for screwing pipe is provided with external screw thread, and the air inlet of air inlet semi-circular tube goes out to be provided with second pressure sensor and gas sensing
Device, air inlet semi-circular tube is provided with the 8th control valve, screws pipe outside and is provided with pressure gauge, second pressure sensor by data wire with
Pressure gauge connects；
Portable computer is by data wire and the first control valve, the second control valve, the 3rd control valve, the 4th control valve, the 5th control
Gas analyser, first pressure are passed in valve, the 6th control valve, the 7th control valve, the 8th control valve, free gass analyser, coal
The connection of sensor, second pressure sensor, gas sensor and vacuum pump.
Free gass analyser is identical with the structure of gas analyser in coal；Free gass analyser includes closed case
Body, is fixed with motor and infrared spectrum analyser in casing, the main shaft of motor is provided with flabellum, and the bottom of casing also sets
There are vacuum transducer, methane transducer, carbon dioxide sensor and nitrogen sensor, casing is provided with air extraction connector and air inlet connecting
Head, air extraction connector is connected with suction branch, and inlet suction port is connected with air intake branch；Infrared spectrum analyser, motor, vacuum sensing
Device, methane transducer, carbon dioxide sensor and nitrogen sensor are connected respectively by data wire with portable computer.
Quick detachable coupling assembly includes underframe and two groups of fixed mounts, and underframe is bolted on analysis dolly bottom,
The setting side by side up and down of two groups of fixed mounts and the two connected by H-shaped link, underlying fixed mount is fixed on underframe, very
Empty pump and pressure break cylinder assemble be fixed in two groups of fixed mounts respectively；
Being fixed on fixed mount on underframe includes upper half round bar and lower half round bar, upper half round bar at least provided with two, lower half round bar
At least provided with two, lower half round bar is fixed on side by side on underframe, and upper half round bar is fixed on side by side the bottom of H-shaped link, upper half
Round bar and lower half round bar are correspondingly arranged up and down, and one end and one end of lower half round bar of upper half round bar are hinged, upper half round bar it is another
Hold and pass through to snap connection with the other end of lower half round bar；
The lower half round bar of fixed mount above is fixed on side by side the top of H-shaped link.
The survey gas method of coal interior portion gas ground test device, comprises the following steps：
（1）Connection equipment, Y connection is plugged in core barrel, is screwed pipe screw thread and is connected at the upper port of core barrel, is taken
The coal heart in underground collection is loaded with heart cylinder；
（2）All valves are closed by manipulating portable computer, first is then opened successively and is controlled valve, the second control valve and the 3rd control
Valve processed, then starts vacuum pump, and vacuum pump extracts out the air inside gas analyser in free gass analyser and coal, surely
Empty sensor detects and be inside gas analyser in free gass analyser and coal vacuum state and transmit information to just
When taking computer, portable computer sends instruction, closes first and controls valve, the second control valve, the 3rd control valve and vacuum pump；
（3）The 7th being opened successively and controlling valve, the 6th control valve and the 4th control valve, priming pump is by feed tube to pressure break cylinder
Interior injection fracturing fluid, the pressure in first pressure sensor real-time monitoring feed tube changes the 6th control by manipulating portable computer
The open amount of valve processed and the 7th control valve, so as to adjust the pressure of fracturing fluid in drain pipe；
（4）Fracturing fluid is entered after pressure break cylinder and flowed out from drain pipe, then in Jing pressure breaks semi-circular tube injection core barrel, fracturing fluid displacement
Free gass in core barrel, free gass are drawn to upwards in air inlet semi-circular tube, and then the gas in air inlet semi-circular tube is passed
Sensor monitors gas, and to portable computer transmission information, portable computer control afterwards the 8th controls valve and opens gas sensor, trip
Free gass analyser is entered from gas Jing air intake branches；
（5）When gas sensor monitors are less than gas, illustrate free gass whole displacement go out, successively close the 7th control valve,
6th control valve, the 8th control valve and the 4th control valve, and by manipulating the drive in portable computer startup free gass analyser
Galvanic electricity machine and infrared spectrum analyser, motor is rotated and drives fan blade rotating to move, and methane transducer, carbon dioxide sensor and nitrogen are passed
Sensor is analyzed to the free gass in casing, and final analysis draws the methane concentration of free gass, carbon dioxide in casing
Concentration and nitrogen gas concn, the wavelength of gas with various in infrared spectrum analyser detection analysis free gass, so as to detect free gass
Species, final methane transducer, carbon dioxide sensor, nitrogen sensor and infrared spectrum analyser by detection obtain result transmission
To portable computer；
（6）After the analysis of free gass instrument is finished, open the 6th and control valve, the 7th control valve and the 5th control valve, continue to coring
Injection fracturing fluid in cylinder, when the pressure in second pressure Sensor monitoring to core barrel reaches the strata pressure for setting, closes
Close the 6th control valve and the 7th control valve and stopping and inject fracturing fluid, the gas of coal interior portion starts slow precipitation and forms bubble and delay
Slow upper shifting, gas sensor monitors are to gas and feed back to portable computer, and portable computer sends the control valve of instruction unpack the 8th, coal
Interior gas Jing air intake branches are in gas analyser in coal；
（7）When gas sensor monitors are less than gas, illustrate in coal that gas is all separated out, the 8th is closed successively and controls valve and the
Five control valves, and by manipulating motor and infrared spectrum analyser in portable computer startup coal in gas analyser, drive electricity
Machine is rotated and drives fan blade rotating to move, and methane transducer, carbon dioxide sensor and nitrogen sensor are entered to gas in the coal in casing
Row analysis, final analysis draws in casing the methane concentration of gas, gas concentration lwevel and nitrogen gas concn, infrared spectrum analyser in coal
In detection analysis coal in gas gas with various wavelength, so as to detect the species of the interior gas that produces coal, final methane transducer, dioxy
Change carbon sensor, nitrogen sensor and infrared spectrum analyser detection to be obtained into result and is transferred to portable computer.
Above-mentioned technical proposal is adopted, the invention has the advantages that：
（1）Apparatus of the present invention can be put on truck and be transported for long-distance, and short-distance movement can be moved by lifting handle
Motor car wheel, it is internal in addition to be additionally provided with portable computer and accumulator so as to mobile this device, can carry out one section in very isolated area
The operation of time and without drawing electricity, periphery electricity can be utilized when being with power supply outward and the electricity of internal storage battery is saved；
（2）Gas analyser is detected respectively to the gas in core barrel in free gass analyser and coal, can be analyzed
The species and content of gas in the species and content and coal of free gass；
（3）It is vacuum state to extract gas analyser inside in free gass analyser and coal by vacuum pump, so as to test
Gas analyses provide vacuum state, it is ensured that the accuracy of test；
（4）Clockwise and anticlockwise motor drives flabellum positive and negative rotation, and flabellum is rotated can make the gas of box house carry out sluggish flow, favorably
In the detection analysis of analytical tool；
（5）This method describes the using method of the device in detail, can carry out Accurate Analysis to coal interior portion gas；
In sum, the present invention is reasonable in design, can accurately measure the gas such as the little free gas of formation condition and coal internal adsorption gas respectively
The content of body, for prognostic reserves and research and development mode all have decisive meaning.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is internal structure schematic diagram of the present invention；
Fig. 3 is the lateral side view of Fig. 2；
Fig. 4 is the attachment structure schematic diagram of Y connection and core barrel；
Fig. 5 is the attachment structure schematic diagram of vacuum pump and pressure break cylinder；
Fig. 6 is the structural representation of Y connection；
Fig. 7 is the structural representation of free gass analyser.
Specific embodiment
As shown in figs. 1-7, coal interior portion gas ground test device of the invention, including analysis dolly 1 and Y connection
52, analysis dolly 1 is body structure, and the inside of analysis dolly 1 is frame plate structure, and the bottom side for analyzing dolly 1 is provided with two
Wheel 2, the opposite side for analyzing the bottom of dolly 1 is provided with two pieces of lip blocks 3, and the outer upper for analyzing dolly 1 is provided with turnover panel 4 and handle
Handss 53, the lower side of turnover panel 4 analyzes the open top of dolly 1 along being hinged on analysis dolly 1, analyzes the open top of dolly 1
Place is provided with cover plate 5 and opening-closing plate 6, and cover plate 5 is bolted at the top of analysis dolly 1, and the side of opening-closing plate 6 passes through hinge 7
It is hinged on cover plate 5, the opposite side of opening-closing plate 6 is connected by buckle with the upper edge of turnover panel 4；Vacuum pump is provided with analysis dolly 1
8th, gas analyser 13 in pressure break cylinder 9, portable computer 10, accumulator 11, free gass analyser 12 and coal, free gass analysis
Gas analyser 13 is bolted on the bottom of analysis dolly 1 in instrument 12 and coal, and vacuum pump 8 and pressure break cylinder 9 are by easy
Dismounting coupling assembly 14 is fixed on analysis dolly 1 bottom, and accumulator 11 is placed on the top of gas analyser 13, portable computer in coal
10 are placed on free gass analyser 12, and portable computer 10 is located at the inner side of turnover panel 4, and accumulator 11 is by electric wire and portable electricity
Brain 10 connects；
The gas outlet of vacuum pump 8 is connected with exhaust tube 15, the gas outlet of exhaust tube 15 by two suction branches 16 respectively with trip
Gas analyser 13 connects in gas analyser 12 and coal, and exhaust tube 15 is provided with the first control valve 17, connects free gass
The suction branch 16 of analyser 12 is provided with the second control valve 18, and the suction branch 16 for connecting gas analyser 13 in coal is provided with
3rd control valve 19；
The side of analysis dolly 1 is provided with side by side drain pipe 20 and air inlet pipe 21, and the gas outlet of air inlet pipe 21 is by two air inlets
Pipe 22 is connected respectively with gas analyser 13 in free gass analyser 12 and coal, connects the air inlet of free gass analyser 12
Pipe 22 is provided with the 4th control valve 23, and the air intake branch 22 for connecting gas analyser 13 in coal is provided with the 5th control valve 24, goes out
The inlet of liquid pipe 20 is connected on pressure break cylinder 9, and drain pipe 20 is provided with the 6th control valve 25 and first pressure sensor, pressure break
Feed tube 26 is also associated with cylinder 9, feed tube 26 is connected with topping-up pump, and feed tube 26 is provided with the 7th control valve 27, drain pipe
20 liquid outlet and the air inlet of air inlet pipe 21 are connected with Y connection 52；
Y connection 52 includes air inlet semi-circular tube 29 and pressure break semi-circular tube 30, and the length of pressure break semi-circular tube 30 is more than air inlet semi-circular tube 29
Length, the gas outlet of air inlet semi-circular tube 29 flushes with the inlet of pressure break semi-circular tube 30, the liquid outlet and pressure break of drain pipe 20
The inlet connection of semi-circular tube 30, the air inlet of air inlet pipe 21 is connected with the gas outlet of air inlet semi-circular tube 29, air inlet semi-circular tube 29
Pipe 31 is screwed with being arranged with outside pressure break semi-circular tube 30, the side for screwing pipe 31 is provided with external screw thread, the air inlet of air inlet semi-circular tube 29
Mouth goes out to be provided with second pressure sensor 32 and gas sensor 33, and air inlet semi-circular tube 29 is provided with the 8th control valve 34, screws pipe
31 outsides are provided with pressure gauge 35, and second pressure sensor is connected by data wire with pressure gauge 35；
Portable computer 10 controls valve the 18, the 3rd and controls the control valve of valve the 19, the 4th by data wire and the first control valve 17, second
23rd, in the 5th control control control control valve 34 of valve the 27, the 8th of valve the 25, the 7th of valve the 24, the 6th, free gass analyser 12, coal
Gas analyser 13, first pressure sensor, second pressure sensor 32, gas sensor 33 and vacuum pump 8 connect.
Free gass analyser 12 is identical with the structure of gas analyser in coal 13；Free gass analyser 12 includes closed
Casing 36, is fixed with clockwise and anticlockwise motor 37 and infrared spectrum analyser 38 in casing 36, the main shaft of clockwise and anticlockwise motor 37 is provided with
Flabellum 39, the bottom of casing 36 is additionally provided with methane transducer 40, carbon dioxide sensor 42, nitrogen sensor 41 and vacuum sensing
Device, sets air extraction connector 44 and inlet suction port 45 on casing 36, air extraction connector 44 is connected with suction branch 16, inlet suction port 45 with enter
Gas branch pipe 22 connects, infrared spectrum analyser 38, clockwise and anticlockwise motor 37, vacuum transducer, methane transducer 40, carbon dioxide sensor
42 and nitrogen sensor 41 be connected with portable computer 10 by data wire respectively.
Quick detachable coupling assembly 14 includes underframe 46 and two groups of fixed mounts 47, and it is little that underframe 46 is bolted on analysis
The bottom of car 1, the setting side by side up and down of two groups of fixed mounts 47 and the two connected by H-shaped link 48, underlying fixed mount 47
It is fixed on underframe 46, vacuum pump 8 and pressure break cylinder 9 assemble be fixed in two groups of fixed mounts 47 respectively；
The fixed mount 47 being fixed on underframe 46 includes upper half round bar 49 and lower half round bar 50, and upper half round bar 49 is at least provided with two
Root, at least provided with two, lower half round bar 50 is fixed on side by side the bottom of underframe 46 to lower half round bar 50, and upper half round bar 49 is fixed side by side
On H-shaped link 48, upper half round bar 49 and lower half round bar are correspondingly arranged about 50, one end and the lower half round bar of upper half round bar 49
50 one end is hinged, and the other end of upper half round bar 49 is with the other end of lower half round bar 50 by snapping connection；
The lower half round bar 50 of fixed mount 47 above is fixed on side by side the top of H-shaped link 48.
The survey gas method of coal interior portion gas ground test device, comprises the following steps：
（1）Connection equipment, Y connection 52 is plugged in core barrel 51, screws the upper end that pipe 31 is threaded in core barrel 51
At mouthful, the coal heart in underground collection is loaded with core barrel 51；
（2）All valves are closed by manipulating portable computer 10, first is then opened successively and is controlled the control and of valve 18 of valve 17, second
3rd control valve 19, then starts vacuum pump 8, and vacuum pump 8 is by inside gas analyser 13 in free gass analyser 12 and coal
Air extract out, be inside gas analyser 13 in free gass analyser 12 and coal vacuum shape when vacuum transducer is detected
State and when transmitting information to portable computer 10, portable computer 10 sends instruction, closes first and controls the control valve of valve 17, second
18th, the 3rd control valve 19 and vacuum pump 8；
（3）The 7th being opened successively and controlling the control control valve 23 of valve 25 and the 4th of valve the 27, the 6th, priming pump passes through feed tube 26
Fracturing fluid, the pressure in first pressure sensor real-time monitoring feed tube 26, by manipulating portable computer are injected into pressure break cylinder 9
10 change the 6th controls the open amount that valve 25 and the 7th controls valve 27, so as to adjust the pressure of fracturing fluid in drain pipe 20；
（4）Fracturing fluid is entered and flowed out from drain pipe 20 after pressure break cylinder 9, then in the injection of Jing pressure breaks semi-circular tube 30 core barrel 51, pressure
The free gass in liquid displacement core barrel 51 are split, free gass are drawn to upwards in air inlet semi-circular tube 29, then air inlet semicircle
Gas sensor 33 in pipe 29 monitors gas, gas sensor 33 to the transmission information of portable computer 10, portable computer afterwards
10 controls the 8th control valve 34 and open, and free gass Jing air intake branches 22 enter free gass analyser 12；
（5）When gas sensor 33 is monitored less than gas, illustrate that free gass whole displacement goes out, the 7th is closed successively and controls valve
27th, the 6th control control control valve 23 of valve 34 and the 4th of valve the 25, the 8th, and start free gass point by manipulating portable computer 10
Clockwise and anticlockwise motor 37 and infrared spectrum analyser 38 in analyzer 12, clockwise and anticlockwise motor 37 is rotated and drives flabellum 39 to rotate, methane sensing
Device 40, carbon dioxide sensor 42 and nitrogen sensor 41 are analyzed to the free gass in casing 36, and final analysis draws
The methane concentration of free gass, gas concentration lwevel and nitrogen gas concn in casing 36, the detection analysis free gas of infrared spectrum analyser 38
The wavelength of internal gas with various, so as to detect the species of free gass, final methane transducer 40, carbon dioxide sensor
42nd, detection is obtained result and is transferred to portable computer 10 by nitrogen sensor 41 and infrared spectrum analyser 38；
（6）After the analysis of free gass instrument is finished, open the 6th and control the control control valve 24 of valve 27 and the 5th of valve the 25, the 7th, continue
Fracturing fluid is injected into core barrel 51, when second pressure sensor 32 monitors that the pressure in core barrel 51 reaches the ground for setting
During stressor layer, close the 6th and control the control valve 27 of valve 25 and the 7th and stop injecting fracturing fluid, the gas of coal interior portion starts to delay
Slow precipitation forms bubble slowly upper shifting, and gas sensor 33 monitors gas and feeds back to portable computer 10, portable computer 10
Go out the control valve 34 of instruction unpack the 8th, gas Jing air intake branches 22 are in gas analyser 13 in coal in coal；
（7）When gas sensor 33 is monitored less than gas, illustrate that gas is all separated out in coal, the 8th is closed successively and controls valve 34
With the 5th control valve 24, and start clockwise and anticlockwise motor 37 in coal in gas analyser 13 and infrared by manipulating portable computer 10
Analyser 38, clockwise and anticlockwise motor 37 is rotated and drives flabellum 39 to rotate, and methane transducer 40, carbon dioxide sensor 42 and nitrogen are passed
Sensor 41 is analyzed to gas in the coal in casing 36, final analysis draw in casing 36 methane concentration of gas in coal, two
Oxidation concentration of carbon and nitrogen gas concn, in the detection analysis coal of infrared spectrum analyser 38 in gas gas with various wavelength, so as to detect
The species of gas in coal, final methane transducer 40, carbon dioxide sensor 42, nitrogen sensor 41 and infrared spectrum analyser 38 will
Detection obtains result and is transferred to portable computer 10.
The present embodiment not makees any pro forma restriction to shape, material, structure of the invention etc., every according to this
Any simple modification, equivalent variations and modification that bright technical spirit is made to above example, belong to the technology of the present invention side
The protection domain of case.
Claims (4)
1. coal interior portion gas ground test device, it is characterised in that：Including analysis dolly and Y connection, analysis dolly is case
Body structure, analysis car interior is frame plate structure, and the bottom side for analyzing dolly is provided with two wheels, analyzes dolly bottom
Opposite side is provided with two pieces of lip blocks, and the outer upper for analyzing dolly is provided with turnover panel and handle, and the lower side edge of turnover panel is hinged on
On analysis dolly, the open top of dolly is analyzed, cover plate and opening-closing plate are provided with the open top for analyzing dolly, cover plate passes through spiral shell
Tether and be connected on analysis car top, the side of opening-closing plate is hinged on the cover board by hinge, the opposite side of opening-closing plate passes through buckle
It is connected with turnover panel upper edge；Analyze little in-car be provided with vacuum pump, pressure break cylinder, portable computer, accumulator, free gass analyser and
Gas analyser in coal, gas analyser is bolted on the bottom of analysis dolly in free gass analyser and coal,
Vacuum pump and pressure break cylinder are fixed on analysis dolly bottom by quick detachable coupling assembly, and accumulator is placed on gas analyser in coal
On, portable computer is placed on free gass analyser, portable computer be located at turnover panel inner side, accumulator by electric wire with it is portable
Computer connects；
The gas outlet of vacuum pump is connected with exhaust tube, and the gas outlet of exhaust tube is divided respectively by two suction branches with free gass
Gas analyser connection in analyzer and coal, exhaust tube is provided with the first control valve, connects the suction branch of free gass analyser
The second control valve is provided with, the suction branch for connecting gas analyser in coal is provided with the 3rd control valve；
The side of analysis dolly is provided with side by side drain pipe and air inlet pipe, the gas outlet of air inlet pipe by two air intake branches respectively with
Gas analyser connection in free gass analyser and coal, the air intake branch for connecting free gass analyser is provided with the 4th control
Valve, the air intake branch for connecting gas analyser in coal is provided with the 5th control valve, and the inlet of drain pipe is connected on pressure break cylinder,
Drain pipe is provided with the 6th control valve and first pressure sensor, and feed tube is also associated with pressure break cylinder, and feed tube is connected with note
Liquid pump, feed tube is provided with the 7th control valve, and the liquid outlet of drain pipe and the air inlet of air inlet pipe are connected with Y connection；
Y connection includes air inlet semi-circular tube and pressure break semi-circular tube, and pressure break semicircle length of tube enters more than the length of air inlet semi-circular tube
The gas outlet of gas semi-circular tube flushes with the inlet of pressure break semi-circular tube, and the liquid outlet of drain pipe connects with the inlet of pressure break semi-circular tube
Connect, the air inlet of air inlet pipe is connected with the gas outlet of air inlet semi-circular tube, outside air inlet semi-circular tube and pressure break semi-circular tube rotation is arranged with
Tight pipe, the side for screwing pipe is provided with external screw thread, and the air inlet of air inlet semi-circular tube goes out to be provided with second pressure sensor and gas sensing
Device, air inlet semi-circular tube is provided with the 8th control valve, screws pipe outside and is provided with pressure gauge, second pressure sensor by data wire with
Pressure gauge connects；
Portable computer is by data wire and the first control valve, the second control valve, the 3rd control valve, the 4th control valve, the 5th control
Gas analyser, first pressure are passed in valve, the 6th control valve, the 7th control valve, the 8th control valve, free gass analyser, coal
The connection of sensor, second pressure sensor, gas sensor and vacuum pump.
2. coal interior portion gas ground test device according to claim 1, it is characterised in that：Free gass analyser and
The structure of gas analyser is identical in coal；Free gass analyser includes closed casing, and motor is fixed with casing
And infrared spectrum analyser, the main shaft of motor is provided with flabellum, the bottom of casing be additionally provided with vacuum transducer, methane transducer,
Carbon dioxide sensor and nitrogen sensor, casing is provided with air extraction connector and inlet suction port, and air extraction connector connects with suction branch
Connect, inlet suction port is connected with air intake branch；Infrared spectrum analyser, motor, vacuum transducer, methane transducer, carbon dioxide
Sensor and nitrogen sensor are connected respectively by data wire with portable computer.
3. coal interior portion gas ground test device according to claim 2, it is characterised in that：Quick detachable coupling assembly bag
Include underframe and two groups of fixed mounts, underframe is bolted on analysis dolly bottom, the setting side by side up and down of two groups of fixed mounts and
The two is connected by H-shaped link, and underlying fixed mount is fixed on underframe, and vacuum pump and pressure break cylinder assemble respectively fixation
In two groups of fixed mounts；
Being fixed on fixed mount on underframe includes upper half round bar and lower half round bar, upper half round bar at least provided with two, lower half round bar
At least provided with two, lower half round bar is fixed on side by side on underframe, and upper half round bar is fixed on side by side the bottom of H-shaped link, upper half
Round bar and lower half round bar are correspondingly arranged up and down, and one end and one end of lower half round bar of upper half round bar are hinged, upper half round bar it is another
Hold and pass through to snap connection with the other end of lower half round bar；
The lower half round bar of fixed mount above is fixed on side by side the top of H-shaped link.
4. the survey gas method of coal interior portion gas ground test device according to claim 3, it is characterised in that：Including with
Lower step：
（1）Connection equipment, Y connection is plugged in core barrel, is screwed pipe screw thread and is connected at the upper port of core barrel, is taken
The coal heart in underground collection is loaded with heart cylinder；
（2）All valves are closed by manipulating portable computer, first is then opened successively and is controlled valve, the second control valve and the 3rd control
Valve processed, then starts vacuum pump, and vacuum pump extracts out the air inside gas analyser in free gass analyser and coal, surely
Empty sensor detects and be inside gas analyser in free gass analyser and coal vacuum state and transmit information to just
When taking computer, portable computer sends instruction, closes first and controls valve, the second control valve, the 3rd control valve and vacuum pump；
（3）The 7th being opened successively and controlling valve, the 6th control valve and the 4th control valve, priming pump is by feed tube to pressure break cylinder
Interior injection fracturing fluid, the pressure in first pressure sensor real-time monitoring feed tube changes the 6th control by manipulating portable computer
The open amount of valve processed and the 7th control valve, so as to adjust the pressure of fracturing fluid in drain pipe；
（4）Fracturing fluid is entered after pressure break cylinder and flowed out from drain pipe, then in Jing pressure breaks semi-circular tube injection core barrel, fracturing fluid displacement
Free gass in core barrel, free gass are drawn to upwards in air inlet semi-circular tube, and then the gas in air inlet semi-circular tube is passed
Sensor monitors gas, and to portable computer transmission information, portable computer control afterwards the 8th controls valve and opens gas sensor, trip
Free gass analyser is entered from gas Jing air intake branches；
（5）When gas sensor monitors are less than gas, illustrate free gass whole displacement go out, successively close the 7th control valve,
6th control valve, the 8th control valve and the 4th control valve, and by manipulating the drive in portable computer startup free gass analyser
Galvanic electricity machine and infrared spectrum analyser, motor is rotated and drives fan blade rotating to move, and methane transducer, carbon dioxide sensor and nitrogen are passed
Sensor is analyzed to the free gass in casing, and final analysis draws the methane concentration of free gass, carbon dioxide in casing
Concentration and nitrogen gas concn, the wavelength of gas with various in infrared spectrum analyser detection analysis free gass, so as to detect free gass
Species, final methane transducer, carbon dioxide sensor, nitrogen sensor and infrared spectrum analyser by detection obtain result transmission
To portable computer；
（6）After the analysis of free gass instrument is finished, open the 6th and control valve, the 7th control valve and the 5th control valve, continue to coring
Injection fracturing fluid in cylinder, when the pressure in second pressure Sensor monitoring to core barrel reaches the strata pressure for setting, closes
Close the 6th control valve and the 7th control valve and stopping and inject fracturing fluid, the gas of coal interior portion starts slow precipitation and forms bubble and delay
Slow upper shifting, gas sensor monitors are to gas and feed back to portable computer, and portable computer sends the control valve of instruction unpack the 8th, coal
Interior gas Jing air intake branches are in gas analyser in coal；
（7）When gas sensor monitors are less than gas, illustrate in coal that gas is all separated out, the 8th is closed successively and controls valve and the
Five control valves, and by manipulating motor and infrared spectrum analyser in portable computer startup coal in gas analyser, drive electricity
Machine is rotated and drives fan blade rotating to move, and methane transducer, carbon dioxide sensor and nitrogen sensor are entered to gas in the coal in casing
Row analysis, final analysis draws in casing the methane concentration of gas, gas concentration lwevel and nitrogen gas concn, infrared spectrum analyser in coal
In detection analysis coal in gas gas with various wavelength, so as to detect the species of the interior gas that produces coal, final methane transducer, dioxy
Change carbon sensor, nitrogen sensor and infrared spectrum analyser detection to be obtained into result and is transferred to portable computer.
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| CN201710029135.4A CN106645588B (en) | 2017-01-16 | 2017-01-16 | Coal interior portion gas ground test device and its test method |
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| CN102944666A (en) * | 2012-12-05 | 2013-02-27 | 西南石油大学 | Shale gas reservoir recovery simulation experimental device |
| CN203097887U (en) * | 2013-03-01 | 2013-07-31 | 河南理工大学 | Device for testing gas production contribution ability of coal bed with different fracture development degrees |
| CN104329085A (en) * | 2014-10-28 | 2015-02-04 | 成都创源油气技术开发有限公司 | Component monitoring system in shale gas exploitation process |
| CN104407108A (en) * | 2014-12-09 | 2015-03-11 | 山东大学 | Integrated coal and gas adsorption and desorption and outstanding test device and test method |
| CN105865969A (en) * | 2016-06-13 | 2016-08-17 | 中国地质大学（北京） | Isothermal adsorption and desorption system and method for raw coal |
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|---|---|---|---|---|
| CN102944666A (en) * | 2012-12-05 | 2013-02-27 | 西南石油大学 | Shale gas reservoir recovery simulation experimental device |
| CN203097887U (en) * | 2013-03-01 | 2013-07-31 | 河南理工大学 | Device for testing gas production contribution ability of coal bed with different fracture development degrees |
| CN104329085A (en) * | 2014-10-28 | 2015-02-04 | 成都创源油气技术开发有限公司 | Component monitoring system in shale gas exploitation process |
| CN104407108A (en) * | 2014-12-09 | 2015-03-11 | 山东大学 | Integrated coal and gas adsorption and desorption and outstanding test device and test method |
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Effective date of registration: 20221229 Address after: 224100 North of Jinsu Road, Dafenggang Economic Zone, Dafeng District, Yancheng City, Jiangsu Province, and the third floor of Suyan Park Management Committee, west of Second Industrial Avenue Patentee after: Jiangsu Jichuang Gravity Technology Co.,Ltd. Address before: No. 30 College Road, Haidian District, Beijing 100000 Patentee before: China University of Geosciences (Beijing) |
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