CN109111969A - The experimental provision and experimental method that gas hydrates generate when a kind of simulation pipeline sudden contraction - Google Patents
The experimental provision and experimental method that gas hydrates generate when a kind of simulation pipeline sudden contraction Download PDFInfo
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- CN109111969A CN109111969A CN201810736891.5A CN201810736891A CN109111969A CN 109111969 A CN109111969 A CN 109111969A CN 201810736891 A CN201810736891 A CN 201810736891A CN 109111969 A CN109111969 A CN 109111969A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/108—Production of gas hydrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Pipeline Systems (AREA)
Abstract
The experimental provision and experimental method generated the present invention provides gas hydrates when a kind of simulation pipeline sudden contraction, it rationally designs the experimental provision that gas hydrates generate when simulating pipeline sudden contraction and rationally designs experimental method, by the flowing velocity for controlling pipeline, and caliber is tested than the shape with sudden contraction connecting pipe by changing upstream and downstream, interior flow mechanism is managed in research, and in the formation mechenism of metallic conduit adhesion and aggregation after analog study gas hydrate synthesis, the transport of exploitation and natural gas to gas hydrates is significant.
Description
Technical field
The present invention relates to natural when gas hydrates production and transport technical field more particularly to a kind of simulation pipeline sudden contraction
The experimental provision and experimental method that gas hydrate generates.
Background technique
With the increasingly deficient of landing field petroleum resources and people are more and more to the exploration of Marine oil and gas resource, naturally
Gas hydrate is resourceful, especially payes attention to the exploitation to deep water hydrocarbon resource.Obtaining from underwater installation is especially exploited under deep water conditions
Have become possibility with production conveying petroleum resources, but there is many important in gas hydrates production and transport
Problem, wherein most obviously be also most serious be exactly variable diameter sudden contraction transport pipeline blocking accident.The blocking of transport pipeline can make
It at the interruption of transport, causes to leak, pollutes environment, so that oil gas transportation industry is difficult to normal operation, consequence is very serious.
But for a long time, people to hydrate produce and transportational process in encounter the research of variable diameter sudden contraction and few,
And also not deep enough to research forming process of the pipe shape thickness to gas hydrate synthesis, at home and abroad there is no simulations to manage at present
The experimental provision and method that hydrate when road sudden contraction generates.These all fully understand that different pipeline diameter combination variable diameters are prominent to us
It contracts the blocking of hydrate and how to cope with this blocking and cause very big difficulty.
Summary of the invention
The technical problem to be solved by the present invention is in order to not there is hydrate when simulation pipeline sudden contraction to generate in the prior art
Experimental provision and experimental method, the present invention provide it is a kind of different pipeline diameters can be combined the blocking of hydrate under variable diameter sudden contraction with
And gas hydrates generate when how should be to a kind of simulation pipeline sudden contraction that this blocking is tested experimental provision and reality
Proved recipe method.
The technical solution adopted by the present invention to solve the technical problems is: hydrate generates when a kind of simulation pipeline sudden contraction
Experimental provision, including experimental simulation system, infusion fluid systems, the circulatory system, temperature control system, pressure-measuring system, pressure
Force control system and monitoring storage system, infusion fluid systems and circulatory system piping connection simultaneously provide multiphase for the circulatory system
Stream, the pressure-measuring system are arranged between infusion fluid systems and experimental simulation system pipeline, the monitoring storage
In experimental simulation system side, monitoring storage system includes monitoring the acoustic detection of sound wave inside experimental simulation system for system setting
The high-speed camera of device and storage experimentation；The experimental simulation system includes experiment bin and is fixed by mounting flange
Main experimental channel in experiment bin, the main experimental channel includes downstream experimental channel and upstream experimental channel, under described
It swims between experimental channel and upstream experimental channel through connecting pipe pipeline connection, the control pressurer system and downstream experiment tube
Road pipeline connection, the circulatory system, control pressurer system and upstream experimental channel pipeline connection are corresponding in the experiment bin
Visual windows are provided at connecting line, the high-speed camera corresponds to visual windows setting, and the temperature control system includes
Temperature control equipment below experiment bin is set.
Further, pass through flanged joint between downstream experimental channel, connecting pipe and upstream experimental channel.Downstream experiment
Other dismountable connection methods such as threaded connection can also be used between pipeline, connecting pipe and upstream experimental channel.
Further, the experiment bin of the experimental simulation system is fixed on experiment rotatable platform.
Further, the circulatory system includes solution liquid pool and connection solution liquid pool and experimental simulation system
The circulation line between mounting flange under the upstream experimental channel of circulation line, the solution liquid pool and experimental simulation system
On be also successively arranged recirculated water water inlet control valve, intake pump, force (forcing) pump and recirculated water outlet water control valve.
Further, infusion fluid systems include multiphase flow splitting device, and the multiphase flow splitting device and solution match liquid
Slot pipeline connection.
Further, pressure-measuring system piping connection is in multiphase flow splitting device and experimental simulation system downstream experiment tube
Between the mounting flange of road, including the relief valve, safety overflow valve and flowmeter being successively set on pipeline.
Further, control pressurer system includes gas source and is connected under gas source and experimental simulation system upstream experiment pipeline
Mounting flange between pressure piping, be successively arranged gas control on the pressure piping between the gas source and mounting flange
Valve, gas booster pump and pressure gauge.
A kind of experimental method for the experimental provision that hydrate generates when simulation pipeline sudden contraction, including following experimental procedure:
A, the Preparatory work of experiment stage:
First with getting the solution of required concentration ready in solution matching slot, closed safe relief valve, recirculated water water inlet control valve,
Experiment bin is opened, checks that the docking of pipeline coincide, screws pipeline mounting flange, close experiment bin；Open recirculated water water inlet control
Valve, starting intake pump, liquid needed for injecting into experiment simulation storehouse, flooding circulating water pipeline outlet up to liquid level is
Only, it is then shut off recirculated water water inlet control valve and intake pump, makes water circulation in experimental temperature control device, makes temperature control
Device processed reaches experiment required temperature, starts intake pump and force (forcing) pump, guarantees the liquid flowing in the combination of experiment bin inner tube；It opens
Gas booster pump and gas control valve, starting gas booster pump are started to work, and pressure in pressure gauge are read, to pressure interior in pipeline
After reaching pressure needed for operating condition of test, gas booster pump is closed, opens overflow relief valve；Light source is opened, from form is illuminated to reality
Polishing in testing position, starting high-speed camera, acoustic detection device and computer, guarantees high-speed camera and acoustic detection device pair
Quasi- observation window completes the Preparatory work of experiment stage；
B, the progress stage is tested:
When temperature reaches experiment set temperature in experiment bin, gas injection control valve is opened, gas boosting is then opened
Pump controls gas flowmeter flow, starts to simulate the experiment of the confluence flowing in main experimental channel, is grabbed automatically with high-speed camera
Mobility status of the bubble on main experimental channel is clapped, adsorbs situation, Yi Jishui with the aggregation of acoustic detection device detection hydrate
Formation and the aggregation blocking of object are closed, gas flow is certain, and circulating water flow is certain, and observes that pipeline has hydrate shape
As only, an experimentation terminates, and the image data that high-speed camera is captured passes to computer by data line and stored；
C, pipe stage is replaced:
After upper one group of experiment, first closing temperature control device opens the safety relief valve pressure release of experimental channel, closes
Closed loop water water inlet control valve and recirculated water outlet water control valve are opened the drain valve of experiment bin lower end, are discharged in main experimental channel
Medium replace next group of experimental channel combination, repeat upper two step and continue to test, if you need to be further added by according to requirement of experiment
Experimental channel combination repeats A, B, step C is tested；
D, ending phase is tested:
First closing temperature control device opens the safety relief valve pressure release of experimental channel, closes recirculated water water inlet control valve
With recirculated water outlet water control valve, closed safe overflow valve opens the drain valve of experiment bin lower end, after this is tested in experiment bin
Sewage be vented to pond, experiment terminates.
The invention has the advantages that the reality that gas hydrates generate when a kind of simulation pipeline sudden contraction provided by the invention
Experiment device and experimental method rationally design the experimental provision that gas hydrates generate when simulating pipeline sudden contraction and rationally design reality
Proved recipe method tests caliber than the shape with sudden contraction connecting pipe by controlling the flowing velocity of pipeline, and by changing upstream and downstream
Interior flow mechanism is managed in shape, research, and in the formation mechenism of metallic conduit adhesion and aggregation after analog study gas hydrate synthesis, to natural
The exploitation of gas hydrate and the transport of natural gas are significant.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of optimum embodiment of the present invention.
Fig. 2 is the structural schematic diagram of experimental simulation system in the present invention.
Fig. 3 is the schematic diagram that kinds of experiments pipeline combines in experimental simulation system in the present invention.
1 in figure, solution matching slot 2, recirculated water water inlet control valve 3, intake pump 4, force (forcing) pump 5-1, spend control device
6, experiment bin 6-1, upstream experimental channel 6-2, connecting pipe 6-3, downstream experimental channel 6-4, mounting flange 6-5, visual
Window 7, experiment rotatable platform 8, flowmeter 9, safety overflow valve 10, multiphase flow splitting device 11, relief valve 12, gas
Body booster pump 13, gas control valve 14,15 acoustic detection device 16 of pressure gauge, high-speed camera.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
The experimental provision that hydrate generates when a kind of simulation pipeline sudden contraction as shown in Figure 1 to Figure 3, including experiment simulation system
System, infusion fluid systems, the circulatory system, temperature control system, pressure-measuring system, control pressurer system and monitoring storage system
System.
Infusion fluid systems and circulatory system piping connection simultaneously provide multiphase flow, the pressure measurement system for the circulatory system
System is arranged between infusion fluid systems and experimental simulation system pipeline, and the monitoring storage system setting is in experiment simulation system
System side, monitoring storage system include monitoring the acoustic detection device 15 of sound wave inside experimental simulation system and storing experimentation
High-speed camera 16.
It tests simulation system and provides the metallic conduit environment that Hydrate Plugging is formed under simulated high-pressure, low temperature to test.Experiment
The main experimental channel that simulation system includes experiment bin 6 and is fixed in experiment bin 6 by mounting flange 6-4.Experimental simulation system
Experiment bin 6 be fixed on experiment rotatable platform 7 on.Rotatable platform 7 can top experiment bin carry out angular adjustment, Ke Yijin
The pipeline experiment of the horizontal positioned angle of row can also be carried out placing pipeline experiment vertically, can also be carried out with certain tilt angle
Place the experiment of pipeline.It influences, plays caused by being generated by the flowing of 7 analog gravity convection body of rotatable platform and hydrate
Pipeline is not fixed the effect of the experiment simulation of angle placement in Practical Project.
Main experimental channel includes downstream experimental channel 6-3 and upstream experimental channel 6-1, the downstream experimental channel 6-3 and
Pass through connecting pipe 6-2 pipeline connection, the control pressurer system and downstream experimental channel 6-3 between the experimental channel 6-1 of upstream
Pipeline connection, the circulatory system, control pressurer system and upstream experimental channel 6-1 pipeline connection are right in the experiment bin 6
It answers and is provided with visual windows 6-5 at connecting line 6-2, the corresponding visual windows 6-5 setting of the high-speed camera 16.
Temperature control system provides required temperature environment for experimental model system, and the temperature control system includes setting
Set the temperature control equipment 5-1 below experiment bin 6.
Further, connected between downstream experimental channel 6-3, connecting pipe 6-2 and upstream experimental channel 6-1 by flange
It connects.Threaded connection etc. can also be used between downstream experimental channel 6-3, connecting pipe 6-2 and upstream experimental channel 6-1, and other are removable
The connection method unloaded.In specific experiment, a variety of downstream experimental channel 6-3 and upstream experimental channel 6-1 can be designed as needed
Between caliber ratio, the sudden contraction shape of a variety of connecting pipe 6-2 is provided, replaces and tests in an experiment.
Corresponding main experimental channel, also has the drainage system for being connected to 6 lower end of experiment bin, including be connected under experiment bin 6
The drain valve at end, for testing after sewage discharge.
The circulatory system then provides for experimental model system into dress liquid.The circulatory system can effectively simulate pipeline liquid flowing ring
Border.The circulatory system includes solution liquid pool 1 and the circulation line for connecting solution liquid pool 1 and experimental simulation system, the solution
It is also successively set on the circulation line between mounting flange 6-4 under the upstream experimental channel 6-1 of liquid pool 1 and experimental simulation system
There are recirculated water water inlet control valve 2, intake pump 3, force (forcing) pump 4 and recirculated water outlet water control valve.
Infusion fluid systems are that solution liquid pool 1 injects multiphase flow.Infusion fluid systems include multiphase flow splitting device 10,
The multiphase flow splitting device 10 and 1 pipeline connection of solution liquid pool.
Pressure-measuring system can effectively measure the pressure after main experimental channel confluence gas, pressure-measuring system piping connection
Between the mounting flange 6-4 on multiphase flow splitting device 10 and experimental simulation system downstream experiment pipeline 6-3, including successively set
Set relief valve 11, safety overflow valve 9 and flowmeter 8 on pipeline.
Control pressurer system include gas source and be connected to gas source and experimental simulation system upstream experiment pipeline 6-1 under fixation
Pressure piping between flange 6-4 is successively arranged gas control valve on the pressure piping between the gas source and mounting flange 6-4
13, gas booster pump 12 and pressure gauge 14.
Main experimental channel flow pressure drop under certain temperature, pressure condition can be measured using above-mentioned experimental provision, it can be achieved that
Different upstream and downstream caliber ratios, the drop measurement of different medium；Main pipeline under certain temperature, pressure condition can be simulated to obtain and divided
The confluence flowing and the formation of hydrate of branch pipe(tube)；Pipelines combination can be tested, pipelines angle provides for experiment
Diversity choice；Acoustic detection device 15 and high-speed camera 16 are circumscribed with computer, can receive sound wave by computer and visit
The data that device 15 and high-speed camera 16 are collected are surveyed, by storing image data in processing computer, can analyze difference
Caliber is than the gas hydrate synthesis mechanism under, gas with various flow velocity, different solid phase particles concentration, flow rate of liquid.
Using above-mentioned experimental provision, gas hydrates are generated when analog pipeline sudden contraction, have following experimental procedure:
A, the Preparatory work of experiment stage:
First with the solution for getting required concentration ready, closed safe relief valve 11, recirculated water water inlet control in solution matching slot 1
Valve 2 opens experiment bin 6, checks that the docking of pipeline coincide, screws pipeline mounting flange 6-4, close experiment bin 6；Open recirculated water
Water inlet control valve 2 starts intake pump 3, liquid needed for injecting into experiment simulation storehouse, until liquid level floods circulating water pipe
Until road exports, it is then shut off recirculated water water inlet control valve 2 and intake pump 3, recycles water in experimental temperature control device 5-1
Circulation makes temperature control equipment reach experiment required temperature, starts intake pump 3 and force (forcing) pump 4, guarantees the combination of 6 inner tube of experiment bin
In liquid flowing；Gas booster pump 12 and gas control valve 13 are opened, starting gas booster pump 12 is started to work, and pressure is read
Pressure in table 14 closes gas booster pump 20 after pressure interior in pipeline reaches pressure needed for operating condition of test, opens overflow safety
Valve 9；Light source is opened, from illumination form polishing into experiment bin 6, starting high-speed camera 16, acoustic detection device 15 and calculating
Machine guarantees that high-speed camera 16 and acoustic detection device 15 are directed at observation window, completes the Preparatory work of experiment stage；
B, the progress stage is tested:
When temperature reaches experiment set temperature in experiment bin 6, gas injection control valve 13 is opened, gas is then opened and increases
Press pump 12 controls gas flowmeter flow, starts to simulate the experiment of the confluence flowing in main experimental channel, with high-speed camera 16
The automatic mobility status for capturing bubble on main experimental channel adsorbs feelings with the aggregation that acoustic detection device 15 detects hydrate
The formation of condition and hydrate and aggregation blocking, gas flow is certain, and circulating water flow is certain, and observes pipeline
Until having gas hydrate synthesis, an experimentation terminates, and the image data that high-speed camera 16 is captured passes to meter by data line
Calculation machine is stored；
C, pipe stage is replaced:
After upper one group of experiment, first closing temperature control device 5-1, the safety relief valve 11 for opening experimental channel is let out
Pressure closes recirculated water water inlet control valve 2 and recirculated water outlet water control valve, opens the drain valve of 6 lower end of experiment bin, main experiment is discharged
Medium in pipeline replaces next group of experimental channel combination, repeats upper two step and continue to test according to requirement of experiment, if you need to
It is further added by experimental channel combination, repeats A, B, step C is tested；
D, ending phase is tested:
First closing temperature control device 5-1 opens 11 pressure release of safety relief valve of experimental channel, closes recirculated water water inlet control
Valve 2 and recirculated water outlet water control valve processed, closed safe overflow valve 9 open the drain valve of 6 lower end of experiment bin, after this is tested
Sewage in experiment bin 6 is vented to pond, and experiment terminates.
The experimental provision and method that gas hydrates generate when a kind of simulation pipeline sudden contraction being designed in this way, rationally design
Simulate pipeline sudden contraction when gas hydrates generate experimental provision and rationally design experimental method, pass through control pipeline flowing
Speed, and caliber is tested than the shape with sudden contraction connecting pipe by changing upstream and downstream, interior flow mechanism is managed in research, and is simulated
In the formation mechenism of metallic conduit adhesion and aggregation, the fortune of exploitation and natural gas to gas hydrates after research gas hydrate synthesis
It is defeated significant.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (8)
1. the experimental provision that hydrate generates when a kind of simulation pipeline sudden contraction, it is characterised in that: including experimental simulation system, fluid
Injected system, the circulatory system, temperature control system, pressure-measuring system, control pressurer system and monitoring storage system, fluid note
Enter system and circulatory system piping connection and provide multiphase flow for the circulatory system, the pressure-measuring system setting is infused in fluid
Enter between system and experimental simulation system pipeline, the monitoring storage system is arranged in experimental simulation system side, and monitoring is deposited
Storage system includes the high-speed camera for monitoring the acoustic detection device (15) of sound wave and storage experimentation inside experimental simulation system
Machine (16)；The experimental simulation system includes experiment bin (6) and is fixed in experiment bin (6) by mounting flange (6-4)
Main experimental channel, the main experimental channel include downstream experimental channel (6-3) and upstream experimental channel (6-1), the downstream
Pass through connecting pipe (6-2) pipeline connection, pressure control system between experimental channel (6-3) and upstream experimental channel (6-1)
System and downstream experimental channel (6-3) pipeline connection, the circulatory system, control pressurer system and upstream experimental channel (6-1) are managed
Road connection, interior be correspondingly connected at pipeline (6-2) of the experiment bin (6) are provided with visual windows (6-5), the high-speed camera
(16) corresponding visual windows (6-5) setting, the temperature control system include the temperature control being arranged below experiment bin (6)
Device (5-1).
2. the experimental provision that hydrate generates when a kind of simulation pipeline sudden contraction as described in claim 1, it is characterised in that: described
Downstream experimental channel (6-3), between connecting pipe (6-2) and upstream experimental channel (6-1) pass through flanged joint.
3. the experimental provision that hydrate generates when a kind of simulation pipeline sudden contraction as described in claim 1, it is characterised in that: described
Experimental simulation system experiment bin (6) be fixed on experiment rotatable platform (7) on.
4. the experimental provision that hydrate generates when a kind of simulation pipeline sudden contraction as described in claim 1, it is characterised in that: described
The circulatory system include solution liquid pool (1) and connect solution liquid pool (1) and experimental simulation system circulation line, it is described molten
On the circulation line between mounting flange (6-4) under the upstream experimental channel (6-1) of liquid liquid pool (1) and experimental simulation system
Also it is successively arranged recirculated water water inlet control valve (2), intake pump (3) and force (forcing) pump (4).
5. the experimental provision that hydrate generates when a kind of simulation pipeline sudden contraction as claimed in claim 4, it is characterised in that: described
Infusion fluid systems include multiphase flow splitting device (10), the multiphase flow splitting device (10) and solution liquid pool (1) are managed
Road connection.
6. the experimental provision that hydrate generates when a kind of simulation pipeline sudden contraction as claimed in claim 5, it is characterised in that: described
Pressure-measuring system piping connection multiphase flow splitting device (10) and experimental simulation system downstream experiment pipeline (6-3) on
Between mounting flange (6-4), including the relief valve (11), safety overflow valve (9) and flowmeter (8) being successively set on pipeline.
7. the experimental provision that hydrate generates when a kind of simulation pipeline sudden contraction as described in claim 1, it is characterised in that: described
Control pressurer system include gas source and be connected to gas source and experimental simulation system upstream experiment pipeline (6-1) under mounting flange
Pressure piping between (6-4) is successively arranged gas control valve on the pressure piping between the gas source and mounting flange (6-4)
(13), gas booster pump (12) and pressure gauge (14).
8. a kind of experimental method for the experimental provision that hydrate generates when simulation pipeline sudden contraction, it is characterised in that: including following real
Test step:
A, the Preparatory work of experiment stage:
First with the solution for getting required concentration ready, closed safe relief valve (11), recirculated water water inlet control in solution matching slot (1)
Valve (2) is opened experiment bin (6), is checked that the docking of pipeline coincide, is screwed pipeline mounting flange (6-4), close experiment bin (6)；It beats
Open cycle water water inlet control valve (2) starts intake pump (3), liquid needed for injecting into experiment simulation storehouse, until liquid level
Until flooding circulating water pipeline outlet, it is then shut off recirculated water water inlet control valve (2) and intake pump (3), makes water in experimental temperature
Circulation in control device (5-1) makes temperature control equipment reach experiment required temperature, starts intake pump (3) and force (forcing) pump
(4), guarantee the liquid flowing in the combination of experiment bin (6) inner tube；It opens gas booster pump (12) and gas control valve (13), starting
Gas booster pump (12) is started to work, and is read pressure in pressure gauge (14), is reached pressure needed for operating condition of test to pressure interior in pipeline
It after power, closes gas booster pump (20), opens overflow relief valve (9)；Light source is opened, is beaten from illumination form in experiment bin (6)
Light, starting high-speed camera (16), acoustic detection device (15) and computer guarantee high-speed camera (16) and acoustic detection dress
(15) alignment observation window is set, the Preparatory work of experiment stage is completed；
B, the progress stage is tested:
It when the interior temperature of experiment bin (6) reaches experiment set temperature, opens gas injection control valve (13), then opens gas and increase
Press pump (12) controls gas flowmeter flow, starts to simulate the experiment of the confluence flowing in main experimental channel, uses high-speed camera
(16) mobility status of the bubble on main experimental channel is captured automatically, is inhaled with the aggregation of acoustic detection device (15) detection hydrate
The formation of attached situation and hydrate and aggregation blocking, gas flow is certain, and circulating water flow is certain, and observes
Until pipeline has gas hydrate synthesis, an experimentation terminates, and the image data that high-speed camera (16) is captured passes through data line
Computer is passed to be stored；
C, pipe stage is replaced:
After upper one group of experiment, first closing temperature control device (5-1), the safety relief valve (11) for opening experimental channel is let out
Pressure closes recirculated water water inlet control valve (2) and recirculated water outlet water control valve, opens the drain valve of experiment bin (6) lower end, discharge master
Medium in experimental channel replaces next group of experimental channel combination, repeats upper two step and continue to test according to requirement of experiment,
If you need to be further added by experimental channel combination, A, B is repeated, step C is tested；
D, ending phase is tested:
First closing temperature control device (5-1) opens safety relief valve (11) pressure release of experimental channel, closes recirculated water water inlet control
Valve (2) processed and recirculated water outlet water control valve, closed safe overflow valve (9) open the drain valve of experiment bin (6) lower end, by this
Sewage after experiment in experiment bin (6) is vented to pond, and experiment terminates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810736891.5A CN109111969A (en) | 2018-07-06 | 2018-07-06 | The experimental provision and experimental method that gas hydrates generate when a kind of simulation pipeline sudden contraction |
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| CN201810736891.5A CN109111969A (en) | 2018-07-06 | 2018-07-06 | The experimental provision and experimental method that gas hydrates generate when a kind of simulation pipeline sudden contraction |
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Application publication date: 20190101 |