CN109298157A - It is a kind of detect methane hydrate acoustic-electric mechanical characteristic pressure cabin and application method - Google Patents
It is a kind of detect methane hydrate acoustic-electric mechanical characteristic pressure cabin and application method Download PDFInfo
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- CN109298157A CN109298157A CN201810781464.9A CN201810781464A CN109298157A CN 109298157 A CN109298157 A CN 109298157A CN 201810781464 A CN201810781464 A CN 201810781464A CN 109298157 A CN109298157 A CN 109298157A
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- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 238000002474 experimental method Methods 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 13
- 230000010354 integration Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 239000000110 cooling liquid Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000571 coke Substances 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- NUXZAAJDCYMILL-UHFFFAOYSA-K trichlorolanthanum;hydrate Chemical compound O.Cl[La](Cl)Cl NUXZAAJDCYMILL-UHFFFAOYSA-K 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000013461 design Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000013049 sediment Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000005520 electrodynamics Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- 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
- G01N33/22—Fuels; Explosives
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention belongs to Oceanic methane hydrate extracting experiment apparatus fields, are a kind of methane hydrate deposits object acoustic-electric mechanics parameter characteristic detection devices.It specifically includes integrated experimental device, axial pressure system, body and becomes measuring system, low-temperature circulating system, votator, acoustic-electric apparatus for testing mechanical.Methane hydrate acoustic-electric mechanics detection process are as follows: methane hydrate deposits object is prepared by integrated experimental device；The characteristic requirements of methane hydrate high pressure low temperature are maintained by axial pressure system and low-temperature circulating system；Extra heat passes through pressure chamber's heat exchanger again and takes entire experimental provision out of；Acoustic-electric apparatus for testing mechanical is recycled to obtain methane hydrate relevant featuring parameters.The present apparatus, without carrying out live coring, to reduce cost；Meet experimental technique requirement in situ simultaneously, so that the data of measurement are accurate enough；Have many advantages, such as that cost of investment is low, operating cost is few, efficient.
Description
Technical field
The invention belongs to Oceanic methane hydrate extracting experiment apparatus field, specifically a kind of methane hydrate deposits object sound
Electrodynamic parameter characteristic detection device.
Background technique
Methane hydrate is a kind of new energy, and this new energy stores content very abundant and is a kind of clean type
The free of contamination energy.Its main component is methane molecule and hydrone, its formation and the formation of submarine oil, natural gas
Cheng Xiangfang, and it is closely related.1 cubic metre of combustible ice can be converted into 164 cubic metres of natural gas and 0.8 cubic metre of water, section
Scholar's estimation, accounts for the 10% of the ocean gross area by about 40,000,000 square kilometres of range of the distribution of seabed combustible ice, seabed combustible ice
Reserves reach the mankind and use 1000.
Current hydrate recovery method mainly has: heat shock method, decompression method, chemical-agent technique.
In the exploitation and recovery process of hydrate, the decomposition that the methods of decompression or heating make hydrate different degrees of,
The properties such as the intensity harmony electrodynamic of hydrate sediment can occur significantly to change, and hydrate strength reduction can make stratum flat
The submarine landslide phenomenon of platform, well head and pipeline loss of stability or even occurrence of large-area, therefore the intensity of hydrate sediment is
One of stability of foundation analysis and hydrate development evaluation most important parameters.
In view of the limitation of live coring and experimental technique in situ, at present to hydrate sediment intensity harmony electrodynamic characteristic
Research be based primarily upon the laboratory experiment of hydrate sediment synthetic sample in terms of, it is especially real in hydrate sediment acoustic-electric mechanics
Not nearly enough maturation in terms of experiment device and measuring technology, restricts going deep into for experimental study work, existing experimental result also for
The Preliminary study of hydrate sediment acoustic-electric mechanical property.
This experimental provision is adopted behind the triaxial cell and traditional hydrate sediment pressure chamber of reference soil mechanics
It, will be in the past with anti-with the thinking of the hydrate sediment synthesis developed both at home and abroad and decomposition and mechanical property experiment integrated apparatus
It answers the methane hydrate sample of kettle preparation and methane hydrate sound, electricity, mechanics parameters is carried out by triaxial cell and record
Process is combined into one, designed methane hydrate acoustic-electric mechanics device pressure chamber.A kind of methane hydrate deposits object pressure chamber
Advantage is to reduce cost, while meeting experimental technique requirement in situ, so that the data of measurement are accurate enough, cost of investment is low,
Operating cost is few etc..
Summary of the invention:
The object of the present invention is to provide a kind of methane hydrate acoustic-electric mechanics detecting systems, can be effectively prevented from traditional experiment
Live coring and the brought limitation of experiment in situ in the process, so that more accurate recording methane hydrate acoustic-electric mechanical characteristic is joined
Number, provides detailed data for subsequent methane hydrate marine mining.
To achieve the above object, the present invention provides following schemes:
A kind of methane hydrate deposits object acoustic-electric mechanics parameter characteristic detection device, the detection device includes: integration
Experimental provision, axial pressure system, body become measuring device, low-temperature circulating system, pressure chamber's heat exchanger, acoustic-electric mechanics detection dress
It sets；
Integrated experimental device part includes:
Methane hydrate reaction kettle and methane hydrate triaxial cell；Methane hydrate reaction kettle is used to prepare experiment institute
Methane hydrate sample, methane hydrate triaxial cell guarantee it for pressurizeing to the methane hydrate of preparation
The existence condition of high pressure.Integrated experimental device is able to maintain methane hydrate acoustic-electric mechanical property experiment load and measuring system not
Become, can effectively avoid the limitation of live coring and experimental technique in situ.
Axial pressure system part includes:
Screw pair and pressurization gasket and reserved stroke sliding slot；Screw pair upper end installs pressure sensor pair additional
Screw pair amount of pressurization is accurately monitored, and corresponding stress data is stored.It is processed between pressurization gasket and reserved pressure stroke
Corresponding sealing device, the encapsulating method is the sealing of " O " type sealing ring, the characteristics of " O " type sealing ring are as follows: 1, high resilience and
Resilience；2, mechanical strength appropriate, including tensile strength, elongation and tearing toughness etc.；3, performance is stablized, in the medium
It is not easy to be swollen, thermal pinch is small；4, easy processing forms, and is able to maintain accurate size；5, do not corrode contact surface, do not pollute Jie
Matter etc..
Body becomes measuring device part
In test, counterweight is eliminated since axial pressure bar moves back and forth the pressure chamber's useful space generated device
Variation, water coke slurry volume is exactly that sample body becomes between pressure chamber and controller, can be straight by confining pressure controller volume change
Obtain sample body become.
Low-temperature circulating components of system as directed includes:
Method of the circulation to keep pressure chamber temperature field constant is constantly carried out in pressure chamber part by isothermal liquid.?
Inside pressure chamber, refrigeration cylinder or heat-exchange tube are installed around sample, and are connect with cryostat, makes liquid in liquid in pipe and pressure chamber
Body sufficient heat exchange realizes the temperature control of pressure indoor liquid by controlling the temperature of low temperature tank liquid.
Pressure chamber's heat exchanger section includes:
Pressure chamber's heat exchanger is made of votator and coolant duct two parts, and coolant liquid is recycled through cooling pipe
It flows through, and then plays exchange heat effect, guarantee methane hydrate low temperature existence condition.Votator is exchanged heat using spiral
It is more significant to compare usual heat exchanger heat transfer effect for pipeline, and acquisition data are more accurate, and heat exchanger height is slightly above integration
Experimental provision is accomplished sufficiently to exchange heat, meets Methane Hydrate.
Acoustic-electric apparatus for testing mechanical part includes:
Acoustic-electric apparatus for testing mechanical uses in pairs, and the acoustic-electric apparatus for testing mechanical is circumferentially uniform along integrated experimental device
Distribution, while integrated experimental device lower end is equipped with acoustic-electric apparatus for testing mechanical, so that detection device is in incorgruous distribution, keeps away
Exempt from experimental data in acoustic-electric mechanics detection process and intersect to have an impact.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
A kind of methane hydrate deposits object of present invention pressure chamber first passes through integrated experimental device and axial pressure system
Methane hydrate sample needed for generating experiment guarantees methane hydrate secondly by low-temperature circulating system and pressure chamber's heat exchanger
Low temperature existence condition, finally by body become measuring device harmony electrodynamic detection device to methane hydrate acoustic-electric mechanical characteristic into
The exploitation that row is detected as subsequent Oceanic methane hydrate provides theories integration.Compared to traditional methane hydrate pressure chamber, originally
Device is without carrying out live coring, to reduce cost；Meet experimental technique requirement in situ simultaneously, so that the data of measurement are enough
Accurately；Have many advantages, such as that cost of investment is low, operating cost is few.
Detailed description of the invention:
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is that the present invention implements methane hydrate acoustic-electric mechanical meaurement experiment flow figure；
Fig. 3 is the main view of methane hydrate pressure chamber entirety of the present invention；
Fig. 4 is the top view of methane hydrate pressure chamber entirety of the present invention；
Fig. 5 is methane hydrate pressure chamber cavity body structure figure of the present invention；
Fig. 6 is screw pair lower thread of the present invention coupling part structure chart；
Fig. 7 is acoustic-electric apparatus for testing mechanical mounting means figure of the present invention.
Symbol description: 1- low-temperature circulating system；2- axial pressure system；3- votator；4- integration experiment dress
It sets；5- body becomes measuring system；6- acoustic-electric apparatus for testing mechanical；7- screw pair；8- sealing device；9- methane hydrate pressure
Chamber enclosure；10- votator；11- methane hydrate pressure chamber base；12- cooling liquid outlet；It is sliding that 13- reserves stroke
Slot；14- pressurization gasket；The pressure chamber 15- cavity；16- pedestal U type groove；17- apparatus for testing mechanical；18- coolant inlet；19-
" O " type sealing ring；20- acoustic detecting device；21- electrical detection device；The pressure chamber 22- upper end U-type groove；The pressure chamber 23- is logical
Hole；The outer escape of 24-；25- necking.
Specific embodiment:
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In case study on implementation, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Case shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of methane hydrate acoustic-electric mechanics detecting systems, can be effectively prevented from traditional experiment
Live coring and experiment bring limitation in situ in the process, so that accurate recording methane hydrate acoustic-electric mechanics parameters, are
Subsequent methane hydrate marine mining provides detailed data.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, a kind of methane hydrate deposits object acoustic-electric mechanics parameter characteristic detection device of the present invention, described device
Include: integrated experimental device 4, axial pressure system 2, body become measuring device 5, low-temperature circulating system 1, votator 3,
Acoustic-electric apparatus for testing mechanical 6, methane hydrate pressure chamber enclosure 9 and pressure chamber base 11；
As shown in figure 3, the integrated experimental device 4 includes methane hydrate reaction kettle and methane hydrate triaxial pressure
Generated experimental sample is sent into methane hydrate triaxial cell 15 and carries out acoustic-electric mechanics by room 15, methane hydrate reaction kettle
Test experience carries out corresponding triaxial pressure experiment in methane hydrate pressure chamber at the same time.Methane hydrate pressure chamber
Body 15 is provided with through-hole along lower five parts all around, is easily installed acoustic-electric apparatus for testing mechanical 6.Wherein acoustic-electric mechanics detection dress
It sets 6 and uses " O " type sealing ring 19 with 15 sealing means of methane hydrate pressure chamber cavity, while guaranteeing that pressure chamber's cavity is in one
A hyperbaric environment.
As shown in figure 3, wherein pressure chamber's cavity 15 and methane hydrate pressure chamber base 11, outside methane hydrate pressure chamber
Shell 9 and methane hydrate pressure chamber base 11, sealing device 8 and methane hydrate pressure chamber enclosure 9 are all made of " O " type sealing ring
19, avoid methane hydrate experimental sample under a hyperbaric environment as far as possible.
As shown in figure 3, wherein coolant inlet 18 and the external feed-line of cooling liquid outlet 12, feed-line is again and spiral
3 lower end pipeline of formula heat exchanger is connected, and coolant liquid flows into votator 3 again by cooling liquid outlet 12 through coolant inlet 18
Outflow guarantees methane hydrate experimental sample under a low temperature environment.
As shown in Figures 3 and 5, wherein pedestal U-type groove 16 and pressure chamber upper end U-type groove 22 play the role of it is different；Processing
16 purpose of pedestal U-type groove is to make the route on acoustic-electric apparatus for testing mechanical 6 convenient for being external on corresponding central control system.Processing
U-type groove 22 purpose in pressure chamber upper end is, because existing in methane hydrate pressure chamber enclosure 9 and methane hydrate pressure chamber 15
The through-hole of acoustic-electric apparatus for testing mechanical 6 is installed, the two needs coaxially to be checked during installation, and T shape waddy is cooperated pressure chamber
Upper end U-type groove 22 drives the rotation of methane hydrate pressure chamber cavity 15 that can accomplish coaxially to check.
As shown in figure 3, wherein axial pressure system 2 includes: screw pair 7, sealing device 8, reserved stroke 13, pressure
Room gasket 14；Axial pressure is carried out to methane hydrate pressure chamber cavity 15 using screw pair 7, during axial pressure
There is reserved stroke 13 in sealing device 8；It is connect with pressure chamber's gasket 14 using spiral in 7 lower end of screw pair.
As shown in figure 4, acoustic detecting device 20 and electrical detection device 21 are in methane hydrate pressure chamber enclosure 9 and pressure
It is circumferentially distributed along 90 ° of angles in power chamber body 15 while axial in pressure chamber's cavity 15 and methane hydrate pressure chamber base 11
Upper installation apparatus for testing mechanical 17, the different item of acoustic-electric apparatus for testing mechanical 6 distribution, avoid measurement methane hydrate characterisitic parameter it
Between generate and influence each other.
As shown in figure 5, wherein pressure chamber's cavity 15 is provided with through-hole in circumferential direction, acoustic-electric apparatus for testing mechanical 6 is passed through
Through-hole is mounted on pressure chamber's cavity 15, and the sealing device between two kinds is " O " type sealing ring 19.
As shown in fig. 6, wherein 7 lower end of screw pair is machined with outer escape 24 and necking, and feed screw nut
Secondary 7 lower ends are processed as multi-diameter shaft form, are convenient for axially position and circumferentially positioned.
As shown in fig. 7, wherein acoustic-electric apparatus for testing mechanical 6 passes through methane hydrate pressure chamber enclosure 10 and pressure chamber's cavity
15 wall surfaces are provided with rectangular channel at interconnection, and are sealed by way of " O " type sealing ring.
The present invention compared to traditional methane hydrate pressure chamber, the present apparatus without carrying out live coring, thus reduce at
This；Meet experimental technique requirement in situ simultaneously, so that the data of measurement are accurate enough；It is low with cost of investment, operating cost is few,
The advantages that efficient.
Claims (10)
1. a kind of methane hydrate deposits object pressure chamber arrangement, characterized by comprising: low-temperature circulating system (1), axial pressure
System (2), body become measuring device (5), integrated experimental device (4), pressure chamber's heat exchanger (3), acoustic-electric apparatus for testing mechanical
(6)；The methane hydrate axial pressure system (2), screw pair (7) and reserved sliding slot (13) form methane hydrate
The axial pressure part of deposit pressure chamber carries out axis to methane hydrate pressure chamber by rotating threaded shaft pair of nut (7) handle
To pressurization, and screw pair upper end is installed with the pressure sensor with monitoring function, to have to compression levels
Effect detects and controls；It is equipped with pressure chamber enclosure (9) in reserved sliding slot (13) lower end simultaneously, pressure chamber enclosure and sealing fill
It sets and is connected by screw bolts between (8) to seal against each other；Feed screw nut pair (7) lower end connects pressure sheet (14), screw rod spiral shell
It is precisely connected between female secondary and pressure sheet using axially position and positioning apparatus for circumferential direction, external screw thread is machined in positioning device
Escape (24) and internal screw thread escape (25), positioning device and screw rod bottom end face are equipped with circular gasket, the pressure sheet
Inside is machined with rectangle groove, is easily installed " O " type sealing ring；The pressure chamber enclosure (9) is uniformly distributed in shell wall circumferential direction orientation
Processing is there are four pressure chamber's through-hole (23), for installing acoustic-electric apparatus for testing mechanical (6), the acoustic-electric mechanics device (6) and logical
There are rectangle groove and " O " type sealing ring between hole (23), the pressure chamber enclosure (9) and pressure chamber base (11) use screw thread
Connection type, is machined with rectangle groove at away from pressure chamber base (11) upper surface 5-6cm and corresponding matched " O " type of installation is close
Seal；Integrated experimental device (4) are installed in pressure chamber base (11) upper surface, and there are rectangle grooves for stream oriented device junction simultaneously
" O " type sealing ring is installed；Pressure chamber base (11) support endface is provided with U-typed slot (16), opens U-typed slot (16) just
It is monitored in display device in acoustic-electric mechanics sensor (6) route to be external to；Pressure chamber base (11) lower end surface is provided with logical
Hole, for installing acoustic-electric apparatus for testing mechanical (6), there are rectangle groove and " O " type sealing ring, the pressure chamber bases for junction
(11) side is provided with path conduits, is convenient for coolant liquid circulation；Acoustic-electric mechanics sensor (6) front end is machined with inside and outside
Screw thread is threadedly coupled with integrated experimental device (4), and processing endface carries out accurate axially position and circumferentially positioned, institute
Stating pressure sensor, there are rectangle grooves and " O " type sealing ring with integrated experimental device (4) junction；The pressure chamber base
(11) path conduits are connect with pressure chamber's heat exchanger (3) pipeline, and recyclable coolant liquid, pressure chamber's heat exchange are passed through in heat exchange pipeline
Device (3) height is slightly higher than methane hydrate integrated experimental device (4), and integrated experimental device (4) upper end is machined with
U-typed slot (22), convenient for the installation position of calibration integrated experimental device (4).
2. integrated experimental device (4) according to claim 1, which is characterized in that integrated experimental device (4) is by methane
Hydrate reaction kettle is combined into one with triaxial cell, and the high pressure air feed system and cryogenic refrigerating system of lanthanum chloride hydrate surround institute
State integrated experimental device design；The integrated experimental device be able to maintain methane hydrate acoustic-electric mechanical property experiment load and
Measuring system is constant；The integrated experimental device can accomplish that lanthanum chloride hydrate, decomposition and acoustic-electric mechanical property test it
Between independent experiment, and entire work flow experiment can be carried out.
3. axial pressure system (2) according to claim 1, which is characterized in that axial pressure system (2) includes lead screw spiral shell
Female pair (7) and pressurization gasket (14) and reserved stroke sliding slot (12), screw pair (7) upper end position are fixedly connected with pressure
Sensor stores corresponding stress data for accurately understanding screw pair (7) amount of pressurization；Screw pair (7) lower end position
It sets and is connected with pressurization gasket, and lower end is machined with inside and outside escape.
4. body according to claim 1 becomes measuring device (5), which is characterized in that the triaxial test system of Serve Motor Control
Triaxial cell and power drill/driver are integrated by system, apply axial force and axial deformation from pressure chamber base, pressure chamber by
Base helical transmission equipped with motor driving；When not selecting radial power drill/driver, dynamic test is eliminated by counterweight
Influence to constant confining pressure；In test, counterweight is eliminated since axial pressure bar moves back and forth the pressure chamber generated device
The variation of the useful space, water coke slurry volume is exactly that sample body becomes between pressure chamber and controller, is become by confining pressure controller volume
Change the body change that can directly obtain sample.
5. low-temperature circulating system (1) according to claim 1, which is characterized in that by isothermal liquid in pressure chamber part
Constantly carry out method of the circulation to keep pressure chamber temperature field constant；Inside pressure chamber, around sample installation refrigeration cylinder or
Heat-exchange tube, and connect with cryostat, make liquid in pipe and pressure indoor liquid sufficient heat exchange, by controlling low temperature tank liquid
Temperature realize the temperature control of pressure indoor liquid.
6. pressure chamber's heat exchanger (3) according to claim 1, which is characterized in that methane hydrate pressure chamber arrangement uses
Spiral heat exchange, votator (10) lower end connect pressure chamber base (11) path conduits, flow into (18) convenient for coolant liquid
With outflow (12) heat exchanger, heat exchanger (11) height is slightly above integrated experimental device (4), accomplishes sufficiently to exchange heat, meet methane
Hydrate Formation Conditions.
7. acoustic-electric apparatus for testing mechanical (6) according to claim 1, which is characterized in that acoustic-electric apparatus for testing mechanical is pairs of
It uses, the acoustic-electric apparatus for testing mechanical (6) is circumferentially uniformly distributed along integrated experimental device (4), while integration experiment fills
It sets (4) lower end and acoustic-electric apparatus for testing mechanical is also installed, so that detection device is in incorgruous distribution, avoid acoustic-electric mechanics detection process
Middle experimental data, which intersects, to be had an impact.
8. " O " type sealing ring according to claim 1, which is characterized in that " O " the type sealing ring, favorable sealing property,
It is matched with seal groove, it is close to be all made of " O " type sealing ring for required hermetic unit on methane hydrate deposits object pressure chamber arrangement
Envelope mode has the function of automatic elastic compensating after sealing surface wear, can eliminate " creeping " phenomenon moved under low speed, low pressure.
9. coolant channels according to claim 1, which is characterized in that coolant channels are connected with spiral heat exchange tube road
Connect, coolant liquid circulation path be coolant inlet (18) to votator (3) again to cooling liquid outlet (12), move in circles
Carry out temperature control.
10. U-typed slot according to claim 1, which is characterized in that U-typed slot is mounted on pressure chamber base and integration
Experimental provision upper end, the former processes U-typed slot (16) and passes through slot convenient for acoustic-electric mechanics device external circuit, and the latter processes " U "
Type groove (22) plays the role of calibrating orientation when installing acoustic-electric apparatus for testing mechanical.
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| CN201810781464.9A CN109298157A (en) | 2018-07-17 | 2018-07-17 | It is a kind of detect methane hydrate acoustic-electric mechanical characteristic pressure cabin and application method |
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| CN201810781464.9A CN109298157A (en) | 2018-07-17 | 2018-07-17 | It is a kind of detect methane hydrate acoustic-electric mechanical characteristic pressure cabin and application method |
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