CN108226398A - A kind of simulation pipeline and hydrate generation experimental provision and method in multiple branched pipes - Google Patents
A kind of simulation pipeline and hydrate generation experimental provision and method in multiple branched pipes Download PDFInfo
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- CN108226398A CN108226398A CN201810033154.9A CN201810033154A CN108226398A CN 108226398 A CN108226398 A CN 108226398A CN 201810033154 A CN201810033154 A CN 201810033154A CN 108226398 A CN108226398 A CN 108226398A
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- 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
- G01N21/84—Systems specially adapted for particular applications
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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
Abstract
Experimental provision and method are generated with hydrate in multiple branched pipes the present invention relates to a kind of simulation pipeline, including：Experimental simulation system, control pressurer system, infusion fluid systems, pressure-measuring system, caliber regulating system, temperature control system, the circulatory system, culvert system and monitoring storage system, pipe diameter adjusting device is co-axially located in branched pipe, pipe diameter adjusting device includes N number of triangular prism, N number of promotion cylinder is evenly distributed on the inner wall of branched pipe, when N number of promotion cylinder pushes the triangular prism to be gradually distance from branch's inside pipe wall simultaneously, two adjacent triangular prisms are close to each other, the overlapping area for sliding two sides of fitting gradually increases, the fluid channel cross section length of side is gradually reduced；By control the quantity of flowing velocity and branched pipe in main experiment tube, internal diameter, injection rate and between spacing, the mechanism of research multitube convergence flowing, and in the formation mechenism of pipeline adhesion and aggregation after analog study gas hydrate synthesis.
Description
Technical field
The present invention relates to gasoline production field of engineering technology, more particularly, to a kind of simulation pipeline and water in multiple branched pipes
Close object generation experimental provision and method.
Background technology
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 in deep water hydrocarbon exploitation there is it is much important the problem of and to ring
The harm in border, wherein most significantly be also most serious be exactly the underwater transport pipeline in profundal zone blocking accident.It transports under water profundal zone
The blocking of defeated pipeline can cause the interruption of transport, cause to leak, pollution of marine environment, oil gas transportation industry is made to be difficult to normally transport
Make, consequence is very serious.
But for a long time, due to being limited by the conditions such as deepwater environment, line clogging and problem of shaking out, people are to water
It is particularly the flow condition of oil pipe well completion section and pipeline internal drop Changeement and few under deepwater environment down, and to deep water
The research forming process of gas hydrate synthesis is not also deep enough under environment, and at home and abroad there is no simulation pipelines and adjustable reducing at present
The experimental provision and method of Multiphase Flow and hydrate generation in branched pipe.These all fully understand us underground completion
The blocking of hydrate and how to cope with this blocking under flow condition and different pipeline diameters at eyelet and cause very big difficulty.
Invention content
The technical problem to be solved by the present invention is to：There are not simulation pipeline and adjustable reducing point to overcome in the prior art
The experimental provision and method of Multiphase Flow and hydrate generation in branch pipe, fully understand us and are flowed at the completion eyelet of underground
The blocking of hydrate and the problem of this blocking causes very big difficulty how is coped under dynamic situation and different pipeline diameters, carried
For a kind of simulation pipeline and hydrate generation experimental provision and method in multiple branched pipes.
The technical solution adopted by the present invention to solve the technical problems is：A kind of simulation pipeline in multiple branched pipes with being hydrated
The experimental provision of object generation, including：Experimental simulation system, control pressurer system, infusion fluid systems, pressure-measuring system, pipe
Diameter regulating system, temperature control system, the circulatory system, culvert system and monitoring storage system, caliber regulating system include pipe
Diameter regulating device, the experimental simulation system include experiment bin, main experimental channel, the main experiment are provided in the experiment bin
Several groups of tapped through hole groups are offered on pipeline, tapped through hole group is equidistant along the length direction of main experimental channel described in several groups
Setting, tapped through hole group described in every group include several tapped through holes, several described tapped through holes in same group are about master
Test the central axis circumference uniform distribution of pipeline, the tapped through hole internal thread is equipped with branched pipe or blocking cap, the branched pipe or
The installation number of blocking cap and position can change according to requirement of experiment, coaxial arrangement pipe diameter adjusting device in the branched pipe.
The pipe diameter adjusting device includes N number of triangular prism, and N number of triangular prism is set along the center circumferential array of branched pipe
Put, fitting is slided in the side of two neighboring triangular prism, the side of N number of triangular prism surround for fluid by fluid channel, fluid
The cross-sectional shape of channel is n-shaped, and the central axis of fluid channel is overlapped with the center line axis of the branched pipe, described point
N number of promotion cylinder is evenly distributed on the inner wall of branch pipe, N number of promotion cylinder is corresponded with N number of triangular prism, the promotion
In the corresponding triangular prism of the central axis of cylinder cloth into the angle between the face of fluid channel be α, fluid channel cross section
Interior angle angle for β, the β of α=1/2 is adjacent when N number of promotion cylinder pushes the triangular prism to be gradually distance from branch's inside pipe wall simultaneously
Two triangular prisms are close to each other, and the overlapping area for sliding two sides of fitting gradually increases, fluid channel cross section side
Length is gradually reduced.
In order to make the movement between two neighboring sliding block more steady, cloth is on the face of fluid channel in the triangular prism
Sliding block is installed with along the motion track of triangular prism, is slided with the face and offers guide rail in the trigone dignity being bonded, it is described
Sliding block is slidably mounted in the guide rail.
Fluid is flowed out from the binding face of adjacent triangular prism in order to prevent, and telescopic rubber is installed in the fluid channel
The face of cloth into fluid channel is tangent in hose, the telescopic rubber hose and triangular prism and is fixedly installed.
For the ease of controlling multiple promotion cylinders simultaneously, work at the same time multiple promotion cylinders, the pipe diameter adjusting device also wraps
Adjusting knob is included, the adjusting knob is electrically connected with the promotion cylinder, and the adjusting knob is mounted on branch's pipe shell.
In order to realize that triangular prism can only slide in one direction, cloth is into the face upper edge three of fluid channel in the triangular prism
Several accommodating chambers are uniformly provided on the motion track of rib body, buckle is rotatablely equipped in several accommodating chambers, with the face
It slides and is uniformly provided with limiting slot on the motion track of the trigone dignity upper edge triangular prism of fitting, magnetic is provided in the limiting slot
Iron, when two adjacent triangular prisms are close to each other, buckle rotates under the action of magnet, is fastened in limiting slot, limitation
Triangular prism is located remotely from each other.
A kind of method performed in experimental provision of the hydrate generation in simulation pipeline with multiple branched pipes, this method packet
Include following steps：
(1), the Preparatory work of experiment stage：
Solution in solution matching slot first with concentration needed for getting ready, closed safe relief valve, recirculated water water inlet control valve,
Experiment bin is opened, checks that the docking of pipeline coincide, tapped through hole internal thread peace of the experimental demand on main experimental channel
Branch pipe or blocking cap are filled, records branch's tube spacing and quantity, screws pipeline mounting flange, closes experiment bin.It opens into water control
Valve processed starts intake pump, the liquid needed for injection into experimental simulation storehouse, and flooding circulating water pipeline outlet up to liquid level is
Only, recirculated water water inlet control valve and intake pump are then shut off, makes water circulation in experimental temperature control device, makes temperature control
Device processed reaches experiment required temperature, starts intake pump and force (forcing) pump, ensures the liquid in experiment bin internal riser and branched pipe combination
Body flows；Gas boosting pump and gas control valve are opened, starts gas boosting pump and starts to work, read pressure in pressure gauge, treat
After interior pressure reaches pressure needed for operating condition of test in pipeline, gas boosting pump is closed, opens overflow relief valve；Light source is opened, from
Form polishing into experiment bin is illuminated, starts high-speed camera and computer, ensures high-speed camera alignment observation window；Experiment
Preparation terminates；
(2), the progress stage is tested：
When temperature reaches experiment set temperature in experiment bin, gas injection control valve is opened, then opens gas boosting
Pump controls gas flowmeter flow, opens the switch of hourglass control valve, and the speed of sand leakage is controlled according to scale, starts simulation master
Experimental channel and the experiment of the confluence flowing in reducing branched pipe, bubble is captured with high-speed camera in main experimental channel automatically
On mobility status and hydrate formation and aggregation blocking, gas flow is certain, and circulating water flow is certain, and
Until observing pipeline and having gas hydrate synthesis, an experimentation terminates, and the image data that high-speed camera is captured passes through data
Line passes to computer and is stored.
(3), the reducing stage of branched pipe：
Pressure release is carried out to experimental channel, by adjusting the adjusting knob in branch's pipe outer wall, adjusting knob control pushes cylinder
Start, N number of promotion cylinder pushes N number of triangular prism simultaneously, and far from branch's inside pipe wall, adjacent two triangular prisms are close to each other, and sliding block exists
It is slided in guide rail, plays guiding role, slide the overlapping area increase of two sides of fitting, the fluid channel cross section length of side
Reduce, the cross-sectional area of fluid channel is reduced, and the caliber of fluid channel becomes smaller, and buckle rotates under the action of magnet, card
It is located in limiting slot, makes triangular prism that can only be moved by fixed-direction, triangular prism is prevented to be located remotely from each other, the caliber of fluid channel is consolidated
It is fixed, it repeats the above steps and carries out next group of experiment.And so on experimental demand, can carry out multigroup different tube diameters than reality
It tests.
(4), 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, the drain valve of experiment bin lower end is opened, the sewage in experimental simulation storehouse after primary experiment is vented
To pond, experiment terminates.
The beneficial effects of the invention are as follows:(1) present apparatus can measure under certain temperature, pressure condition vertical pipeline with it is multiple
Confluence flow pressure drop in reducing branched pipe is, it can be achieved that different branches tube spacing, branched pipe quantity, caliber ratio, different medium,
The drop measurement of difference injection ratio；
(2) present apparatus can simulate to obtain the confluence of main pipeline and manifolds under certain temperature, pressure condition and flow
And the formation of hydrate；
(3) device of the technical program is easy to operate, is easy to observe, and feasibility is high；
(4) measuring method science can realize the parameter measurement of degree of precision；
(5) image data is stored in computer by handling, different tube spacing, numbers of branches, different tube diameters can be analyzed
Than the gas hydrate synthesis mechanism under, gas with various flow velocity, different solid phase particles concentration, flow rate of liquid.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the two-dimensional representation of the present invention；
Fig. 2 is the two-dimensional representation of experiment bin in the present invention；
Fig. 3 is the sectional view at A-A in Fig. 2 of the present invention；
Fig. 4 is the front view of pipe diameter adjusting device in the present invention；
Fig. 5 is the three-dimensional assembling schematic diagram of triangular prism in the present invention；
Fig. 6 is the sectional view of two neighboring triangular prism cooperation in the present invention；
Fig. 7 is the front view after pipe diameter adjusting device reducing in the present invention.
In figure：1. branched pipe, 2. triangular prisms, 3. fluid channels, 4. cylinders, 5. sliding blocks, 6. guide rails, 8. accommodating chambers, 9. gold medals
Belong to button, 10. limiting slots, 11. magnet, 12. solution matching slots, 13. safety relief valves, 14. recirculated water water inlet control valves, 15. is real
Testing position, 16. pipeline mounting flanges, 17. intake pumps, 18. experimental temperature control devices, 19. force (forcing) pumps, 20. gas boostings pump,
21. gas control valve, 22. pressure gauges, 23. overflow relief valves, 24. gas injection control valves, 25. hourglass control valves, 26. main realities
Test pipeline, 27. tapped through holes, 28. blocking caps.
Specific embodiment
Presently in connection with attached drawing, the present invention will be further described in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
A kind of simulation pipeline as shown in Figure 1 and the experimental provision of hydrate generation in multiple branched pipes, including：Test mould
Plan system, control pressurer system, infusion fluid systems, pressure-measuring system, caliber regulating system, temperature control system, cycle
System, culvert system and monitoring storage system, wherein：Control pressurer system provides pressure, fluid note for experimental model system
Enter the branched pipe 1 that system is experimental model system and inject multiphase flow, before and after pressure-measuring system is measurement standpipe and branch pipe confluence
Pressure, experimental simulation system provides the metallic conduit environment that Hydrate Plugging under simulated high-pressure, low temperature formed, temperature for experiment
Control system provides required temperature environment for experimental model system, and the circulatory system provides simulation pipeline liquid for experimental model system
Body flowing environment, culvert system are provided for experimental model system into the sewage discharge after dress liquid and experiment, and monitoring is deposited
The operating of storage system monitoring experiment model system simultaneously stores data.
The experimental simulation system includes experiment bin 15, and main experimental channel 26, the main experiment are provided in experiment bin 15
Several groups of 27 groups of tapped through holes, 27 groups of length sides along main experimental channel 26 of tapped through hole described in several groups are offered on pipeline 26
To spaced set, 27 groups of tapped through hole described in every group includes several tapped through holes 27, several described spiral shells in same group
Central axis circumference uniform distribution of the line through-hole 27 about main experiment pipeline, as shown in Fig. 2, 27 internal thread of the tapped through hole is equipped with
Branched pipe 1 or blocking cap 28, as shown in figure 3, the installation number and position of the branched pipe 1 or blocking cap 28 can change according to requirement of experiment
Becoming, coaxial arrangement pipe diameter adjusting device in the branched pipe 1, the sealing of 15 upper and lower ends of experiment bin, top is provided with medium outlet hole,
And pressure gauge 22, Safety control valve, lower part and side are provided with fluid body injection hole.There is two layers of visual windows, one layer is experiment
The Laboratory Module visual windows installed on storehouse 15, the pipeline visual windows that another layer is filled for main experimental channel 26 and branched pipe 1, experiment
15 bottom end of storehouse and side are equipped with temperature control equipment, in experiment bin 15 main experimental channel 26 respectively with gas phase, liquid phase pipeline phase
Even, reach biphase gas and liquid flow, branched pipe 1 is connected respectively with gas phase, solid phase, liquid phase pipeline, reaches gas-liquid-solid three phase flow, by double
The flow pattern of layer visual windows observable experiment and the stopping state of hydrate.
Pressure-measuring system including the pressure gauge 22 on experiment pipeline, is additionally included in main experiment tube in reaction kettle and can
Equipped with multiple pressure measuring tips on reducing branched pipe 1, main experimental channel 26 is interior to be equipped with 7, and branched pipe 1 is equipped with 2.Temperature controls
System includes：Experiment pipeline inflow entrance is connected with temperature controller inflow entrance, by helical pipe, the helical pipe and temperature control
Concavo-convex increase heat transfer area is presented in circulating line contact surface, changes spiral by changing in temperature control circulating line medium temperature
The temperature of test medium in pipeline, the experimental channel in experiment bin 15 are then connected with temperature controller outflux, and experiment bin 15 is adopted
With temperature insulating material, ensure that experimental temperature pipeline is not influenced by ambient temperature, pipeline is built-in thermometer for experiment.Cyclic system
System includes：Liquid phase gas phase solid-phase separation device, gas phase can enter collection gas cylinder according to demand or discharge, solid particle are deposited in
Separator lower part, liquid phase flow into liquid-phase collection slot, and the liquid-phase collection slot can pass through pipeline and control with solution matching slot 12
Valve processed is connected to form the circulatory system.Culvert system includes：Solution matching slot 12, water inlet control valve, intake pump 17, primary pressurization
Pump 19, secondary pressing pump 19 pass sequentially through pipeline and are connected, solid phase particles filling apparatus, including hourglass, leak control under solid particle
Valve, and be connected with liquid phase pipeline, liquid phase is flowed out by eyelet, and liquid phase control valve, gas phase control valve are connected to reaction by pipeline
On the pipeline that the circulating water outlet of kettle is connected, drain valve is connected to recirculated water water inlet control valve 14 and experimental simulation storehouse by pipeline
On the pipeline that the circulating water intake of lower part is connected.Monitor storage system include high-speed camera and computer, high-speed camera and
Computer connects, the alignment lens observation window of high-speed camera.
The caliber regulating system includes pipe diameter adjusting device, and the pipe diameter adjusting device is co-axially located at the branched pipe
In 1, the pipe diameter adjusting device includes 10 triangular prisms 2, as shown in figure 4, center of 10 triangular prisms 2 along branched pipe 1
Circumference array is set, and fitting is slided in the side of two neighboring triangular prism 2, and cloth is on the face of fluid channel 3 in the triangular prism 2
Sliding block 5 is installed with along the motion track of triangular prism 2, is slided with the face and offers guide rail 6 on 2 face of triangular prism being bonded,
The sliding block 5 is slidably mounted in the guide rail 6, as shown in Figure 5.The side of 10 triangular prisms 2 surround for fluid by stream
Body channel 3, the cross-sectional shape of fluid channel 3 are regualr decagon, the central axis of fluid channel 3 in the branched pipe 1
Bobbin thread overlaps, and is installed with telescopic rubber hose in the fluid channel 3, the telescopic rubber hose in triangular prism 2
The face of cloth into fluid channel 3 is tangent and is fixedly installed.10 promotion cylinders are evenly distributed on the inner wall of the branched pipe 1, this
It invents the promotion cylinder used to correspond with 10 triangular prisms 2 for 4,10 cylinders 4 of cylinder, in the cylinder 4
In the corresponding triangular prism 2 of mandrel line cloth into the angle between the face of fluid channel 3 be α, 3 cross section of fluid channel it is interior
Angle angle is β, the wherein β of α=1/2, β=144 °, then α=72 °, and 10 cylinders 4 push triangular prism 2 to be gradually distance from point simultaneously
During 1 inner wall of branch pipe, adjacent two triangular prisms 2 are close to each other, and the overlapping area for sliding two sides of fitting gradually increases
Greatly, the 3 cross section length of side of fluid channel is gradually reduced.
The pipe diameter adjusting device further includes adjusting knob, and the adjusting knob is electrically connected with the cylinder 4, the adjusting
Knob is mounted on 1 shell of branched pipe.Cloth is into the motion track of the face upper edge triangular prism 2 of fluid channel 3 in the triangular prism 2
On be uniformly provided with several accommodating chambers 8, be rotatablely equipped with buckle 9 in several accommodating chambers 8, with the face slide be bonded three
Limiting slot 10 is uniformly provided on the motion track of 2 face upper edge triangular prism 2 of rib body, magnet 11 is provided in the limiting slot 10,
When two adjacent triangular prisms 2 are close to each other, buckle 9 rotates under the action of magnet 11, is fastened in limiting slot 10, limit
Triangular prism 2 processed is located remotely from each other, as shown in Figure 6.
A kind of method performed in experimental provision of the hydrate generation in simulation pipeline with multiple branched pipes, this method packet
Include following steps：
(1), the Preparatory work of experiment stage：
Solution in solution matching slot 12 first with concentration needed for getting ready, closed safe relief valve 13, recirculated water are into water control
Valve 14 processed opens experiment bin 15, checks that the docking of pipeline coincide, screw thread of the experimental demand on main experimental channel 26 leads to
Hole 27 internal thread installation branch pipe or blocking cap 28, record 1 spacing of branched pipe and quantity, screw pipeline mounting flange 16, close
Experiment bin 15.Water inlet control valve is opened, starts intake pump 17, the liquid needed for injection into experimental simulation storehouse, until liquid level
Until circulating water pipeline outlet is flooded in face, recirculated water water inlet control valve 14 and intake pump 17 are then shut off, makes water in experimental temperature
Circulation in control device 18 makes temperature control equipment reach experiment required temperature, starts intake pump 17 and force (forcing) pump 19, protects
Confirm the liquid flowing in 15 internal riser of testing position and the combination of branched pipe 1；Gas boosting pump 20 and gas control valve 21 are opened, is started
Gas boosting pump 20 is started to work, and reads pressure in pressure gauge 22, after pressure interior in pipeline reaches pressure needed for operating condition of test,
Gas boosting pump 20 is closed, opens overflow relief valve 23；Light source is opened, from illumination form polishing into experiment bin 15, is started high
Fast video camera and computer ensure high-speed camera alignment observation window；Preparatory work of experiment terminates；
(2), the progress stage is tested：
When temperature reaches experiment set temperature in experiment bin 15, gas injection control valve 24 is opened, then opens gas
Booster pump 20 controls gas flowmeter flow, opens the switch of hourglass control valve 25, and the speed of sand leakage is controlled according to scale, is opened
Begin to simulate main experimental channel 26 and the experiment of the confluence flowing in reducing branched pipe 1, bubble is captured automatically with high-speed camera
The formation of mobility status and hydrate on main experimental channel 26 and aggregation blocking, gas flow is certain, cycle
Water flow is certain, and until observing that pipeline has gas hydrate synthesis, and an experimentation terminates, the image that high-speed camera is captured
Data pass to computer by data line and are stored.
(3), the reducing stage of branched pipe 1：
Pressure release is carried out to experimental channel, by adjusting the adjusting knob on 1 outer wall of branched pipe, adjusting knob control pushes cylinder
Start, N number of promotion cylinder pushes N number of triangular prism 2 simultaneously, and far from 1 inner wall of branched pipe, adjacent two triangular prisms 2 are close to each other, sliding
Block 5 slides in guide rail 6, plays guiding role, slides the overlapping area increase of two sides of fitting, and fluid channel 3 is horizontal
The section length of side reduces, and the cross-sectional area of fluid channel 3 is reduced, and the caliber of fluid channel 3 becomes smaller, as shown in fig. 7, buckle 9
It rotates, is fastened in limiting slot 10 under the action of magnet 11, make triangular prism 2 that can only be moved by fixed-direction, prevent triangular prism 2
It is located remotely from each other, the caliber of fluid channel 3 is fixed, and is repeated the above steps and is carried out next group of experiment.And so on experimental need
Ask, can carry out multigroup different tube diameters than experiment.
(4), ending phase is tested：
First closing temperature control device opens 13 pressure release of safety relief valve of experimental channel, closes recirculated water into water management
Valve 14 and recirculated water outlet water control valve open the drain valve of 15 lower end of experiment bin, by the dirt in experimental simulation storehouse after primary experiment
Water is vented to pond, and experiment terminates.
The object of the present invention is to provide a kind of confluence flowing for simulating pipeline with multiple branched pipes 1 and can simulate
The experimental provision of gas hydrate synthesis mechanism is used to implement the survey of the confluence pressure drop to pipeline and multiple variable branched pipes 1 indoors
Amount and branched pipe 1 between each other to converge pressure drop influence and gas hydrate pipeline aggregation formation mechenism research, be
Gas hydrate blocks to form simulation and provide accurately model parameter and valid data in metallic conduit under a variety of flow patterns, and can be with
It simulates the drop measurement of the confluence flowing at the eyelet of exploitation of gas hydrates pit shaft well completion section and determines lower water different in flow rate
It closes object and blocks the speed to be formed.By the quantity, internal diameter, the injection rate that control flowing velocity and branched pipe 1 in main experiment tube
Spacing between and, the mechanism of research multitube convergence flowing, and in pipeline adhesion and aggregation after analog study gas hydrate synthesis
Formation mechenism.
Using above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned 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 content on specification, it is necessary to determine its technical scope according to right.
Claims (7)
1. a kind of simulation pipeline and hydrate generation experimental provision in multiple branched pipes, including：Experimental simulation system, pressure control
System, infusion fluid systems, pressure-measuring system, caliber regulating system, temperature control system, the circulatory system, culvert system
With monitoring storage system, it is characterised in that：Caliber regulating system includes pipe diameter adjusting device, and the experimental simulation system includes real
Testing position (15), the experiment bin (15) is interior to be provided with main experimental channel (26), is offered on the main experimental channel (26) several
Group tapped through hole (27) group, tapped through hole (27) group is equidistantly set along the length direction of main experimental channel (26) described in several groups
It puts, tapped through hole (27) described in every group, which is organized, includes several tapped through holes (27), several described tapped through holes in same group
(27) about it is main experiment pipeline central axis circumference uniform distribution, tapped through hole (27) internal thread be equipped with branched pipe (1) or
Blocking cap (28), the installation number and position of the branched pipe (1) or blocking cap (28) can change according to requirement of experiment, the branched pipe
(1) coaxial arrangement pipe diameter adjusting device in.
2. a kind of simulation pipeline as described in claim 1 exists with hydrate generation experimental provision, feature in multiple branched pipes
In：The pipe diameter adjusting device includes N number of triangular prism (2), center circumferential array of N number of triangular prism (2) along branched pipe (1)
Fitting is slided in setting, the side of two neighboring triangular prism (2), the side of N number of triangular prism (2) surround for fluid by fluid lead to
Road (3), the cross-sectional shape of fluid channel (3) are n-shaped, central axis and the branched pipe (1) of fluid channel (3)
Center line axis overlaps, and is evenly distributed in N number of promotion cylinder on the inner wall of the branched pipe (1), N number of promotion cylinder with it is N number of described
Triangular prism (2) corresponds, and cloth is into fluid channel (3) in the corresponding triangular prism (2) of central axis for pushing cylinder
Face between angle be α, the interior angle angle of fluid channel (3) cross section is β, and the β of α=1/2, N number of promotion cylinder pushes away simultaneously
When dynamic triangular prism (2) is gradually distance from branched pipe (1) inner wall, adjacent two triangular prisms (2) are close to each other, slide fitting
The overlapping area of two sides gradually increases, and fluid channel (3) cross section length of side is gradually reduced.
3. a kind of simulation pipeline as claimed in claim 2 exists with hydrate generation experimental provision, feature in multiple branched pipes
In：Cloth is into being installed with cunning on the motion track of the face upper edge triangular prism (2) of fluid channel (3) in the triangular prism (2)
Block (5) slides with the face and guide rail (6) is offered on triangular prism (2) face being bonded, and the sliding block (5) is slidably mounted on described lead
In rail (6).
4. a kind of simulation pipeline as claimed in claim 2 exists with hydrate generation experimental provision, feature in multiple branched pipes
In：Telescopic rubber hose, the telescopic rubber hose and cloth in triangular prism (2) are installed in the fluid channel (3)
Face into fluid channel (3) is tangent and is fixedly installed.
5. a kind of simulation pipeline as claimed in claim 2 exists with hydrate generation experimental provision, feature in multiple branched pipes
In：The pipe diameter adjusting device further includes adjusting knob, and the adjusting knob is electrically connected with the promotion cylinder, the adjusting knob
On branched pipe (1) shell.
6. a kind of simulation pipeline as claimed in claim 2 exists with hydrate generation experimental provision, feature in multiple branched pipes
In：In the triangular prism (2) cloth into fluid channel (3) face upper edge triangular prism (2) if motion track on be uniformly provided with
Dry accommodating chamber (8), several accommodating chambers (8) are interior to be rotatablely equipped with buckle (9), and the triangular prism (2) being bonded is slided with the face
Limiting slot (10) is uniformly provided on the motion track of face upper edge triangular prism (2), magnet is provided in the limiting slot (10)
(11), when two adjacent triangular prisms (2) are close to each other, buckle (9) rotates under the action of magnet (11), is fastened on limit
In position slot (10), limitation triangular prism (2) is located remotely from each other.
7. a kind of method performed in hydrate generation experimental provision in simulation pipeline with adjustable reducing branched pipe, this method
Include the following steps：
(1), the Preparatory work of experiment stage：
Solution in solution matching slot (12) first with concentration needed for getting ready, closed safe relief valve (13), recirculated water are into water control
Valve (14) processed opens experiment bin (15), checks that the docking of pipeline coincide, experimental demand is on main experimental channel (26)
Tapped through hole (27) internal thread installs branch pipe or blocking cap (28), records branched pipe (1) spacing and quantity, screws pipeline and fix
Flange (16) closes experiment bin (15).Water inlet control valve is opened, starts intake pump (17), into experimental simulation storehouse needed for injection
Liquid until liquid level floods circulating water pipeline outlet, is then shut off recirculated water water inlet control valve (14) and water inlet
It pumps (17), makes water circulation in experimental temperature control device (18), temperature control equipment is made to reach experiment required temperature, is opened
Dynamic intake pump (17) and force (forcing) pump (19) ensure the liquid flowing in experiment bin (15) internal riser and branched pipe (1) combination；It opens
Gas boosting pumps (20) and gas control valve (21), starts gas boosting pump (20) and starts to work, reads in pressure gauge (22) and press
Power after pressure interior in pipeline reaches pressure needed for operating condition of test, closes gas boosting pump (20), opens overflow relief valve
(23)；Light source is opened, from illumination form polishing into experiment bin (15), starts high-speed camera and computer, ensures to take the photograph at a high speed
Camera is directed at observation window；Preparatory work of experiment terminates；
(2), the progress stage is tested：
When the interior temperature of experiment bin (15) reaches experiment set temperature, gas injection control valve (24) is opened, then opens gas
Booster pump (20) controls gas flowmeter flow, opens the switch of hourglass control valve (25), and the speed of sand leakage is controlled according to scale
Degree starts to simulate main experimental channel (26) and the experiment of the confluence flowing in reducing branched pipe (1), automatic with high-speed camera
Capture the formation of mobility status and hydrate of the bubble on main experimental channel (26) and aggregation blocking, gas stream
Amount is certain, and circulating water flow is certain, and until observing that pipeline has gas hydrate synthesis, and an experimentation terminates, high-speed camera
The image data that machine is captured passes to computer by data line and is stored.
(3), the reducing stage of branched pipe (1)：
Pressure release is carried out to experimental channel, by adjusting the adjusting knob on branched pipe (1) outer wall, adjusting knob control pushes cylinder to open
Dynamic, N number of promotion cylinder pushes N number of triangular prism (2) simultaneously, and far from branched pipe (1) inner wall, adjacent two triangular prisms (2) are mutually leaned on
Closely, sliding block (5) slides in guide rail (6), plays guiding role, slides the overlapping area increase of two sides of fitting, stream
Body channel (3) cross section length of side reduces, and the cross-sectional area of fluid channel (3) is reduced, and the caliber of fluid channel (3) becomes smaller, gold
Belong to button (9) to rotate under the action of magnet (11), be fastened in limiting slot (10), make triangular prism (2) that can only be moved by fixed-direction
It is dynamic, triangular prism (2) is prevented to be located remotely from each other, the caliber of fluid channel (3) is fixed, and is repeated the above steps and is carried out next group of experiment.With
This analogizes experimental demand, can carry out multigroup different tube diameters than experiment.
(4), ending phase is tested：
First closing temperature control device opens safety relief valve (13) pressure release of experimental channel, closes recirculated water water inlet control valve
(14) and recirculated water outlet water control valve the drain valve of experiment bin (15) lower end, is opened, it will be after primary experiment in experimental simulation storehouse
Sewage is vented to pond, and experiment terminates.
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| CN201810033154.9A CN108226398A (en) | 2018-01-14 | 2018-01-14 | A kind of simulation pipeline and hydrate generation experimental provision and method in multiple branched pipes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238642A (en) * | 2018-09-21 | 2019-01-18 | 大连理工大学 | A kind of blind pipe device applied to the flowing safety experiment circulatory system |
| CN112031745A (en) * | 2020-08-06 | 2020-12-04 | 中国科学院广州能源研究所 | Device and method for observing formation characteristics of natural gas hydrate |
| CN112031746A (en) * | 2020-09-08 | 2020-12-04 | 中国石油天然气股份有限公司 | Horizontal well full-wellbore gas-liquid flow visual simulation device and method and parameter selection method |
| CN114010277A (en) * | 2021-10-25 | 2022-02-08 | 河北医科大学第三医院 | Adjustable channel of nucleus pulposus enucleation under unilateral binary channels mirror |
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2018
- 2018-01-14 CN CN201810033154.9A patent/CN108226398A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238642A (en) * | 2018-09-21 | 2019-01-18 | 大连理工大学 | A kind of blind pipe device applied to the flowing safety experiment circulatory system |
| CN112031745A (en) * | 2020-08-06 | 2020-12-04 | 中国科学院广州能源研究所 | Device and method for observing formation characteristics of natural gas hydrate |
| CN112031746A (en) * | 2020-09-08 | 2020-12-04 | 中国石油天然气股份有限公司 | Horizontal well full-wellbore gas-liquid flow visual simulation device and method and parameter selection method |
| CN114010277A (en) * | 2021-10-25 | 2022-02-08 | 河北医科大学第三医院 | Adjustable channel of nucleus pulposus enucleation under unilateral binary channels mirror |
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