CN108225729A - A kind of fine adjustment air and liquid twophase flow experiment platform - Google Patents
A kind of fine adjustment air and liquid twophase flow experiment platform Download PDFInfo
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- CN108225729A CN108225729A CN201810272090.8A CN201810272090A CN108225729A CN 108225729 A CN108225729 A CN 108225729A CN 201810272090 A CN201810272090 A CN 201810272090A CN 108225729 A CN108225729 A CN 108225729A
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- 239000007788 liquid Substances 0.000 title claims abstract description 77
- 238000002474 experimental method Methods 0.000 title claims abstract description 39
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 14
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- 239000012071 phase Substances 0.000 claims abstract description 21
- 230000033228 biological regulation Effects 0.000 claims abstract description 17
- 239000007791 liquid phase Substances 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 230000009194 climbing Effects 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
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- 238000010276 construction Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
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- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
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- 238000013480 data collection Methods 0.000 description 2
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- 229920005479 Lucite® Polymers 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
A kind of fine adjustment air and liquid twophase flow experiment platform, the gas phase including being connected respectively with air and liquid mixer generate component and generate component with liquid phase；Gas phase generates component and includes the air compressor machine and gas buffer tank being connected successively with air compressor machine, y-type filter and gas liquid ratio regulation and control module；Liquid phase generates the gas-removing filter and liquid that component is connected including water pot and by centrifugal pump with water pot successively and regulates and controls parallel branch；Gas phase is drained into air by air and liquid mixer by homogenizer connection experiment pipeline, the gas-fluid two-phase mixture of experiment pipeline outflow by cyclone separator, and liquid phase returns to water pot；Experiment pipeline includes climbing pipeline by horizontal pipeline, vertical duct, inclination and Downward inclined tube road is interconnected to form a plurality of circuit and the biphase gas and liquid flow being arranged on each circuit capture photographic device.The present invention acquires test data by PLC controller in real time, can realize the accurate control of gas liquid ratio.
Description
Technical field
The present invention relates to Oil ＆ Gas Storage fields, and in particular to a kind of fine adjustment air and liquid twophase flow experiment platform.
Background technology
Biphase gas and liquid flow is widely present in many industrial circles such as oil, chemical industry, metallurgy, description gas-liquid two-phase properties of flow
Parameter has flow pattern, flow and void fraction etc., effectively in real time the various parameters of detection reflection two-phase flow system characteristic, for protecting
The control of card system and operational reliability important in inhibiting.It is generally analyzed and researched both at home and abroad using mixed defeated circuit.
Deficiency existing for existing experimental bench is mainly manifested in the following aspects at present：
(1) experiment circuit is simple in structure；
(2) ocular estimate identification flow pattern is with very big subjectivity, and flow pattern subtle in experimentation change defies capture；
(3) regulation and control of gas-liquid proportioning are inaccurate；
(4) pressure oscillation is violent in air and liquid mixer, influences measuring accuracy, aggravates pipeline vibration.
Invention content
It is real it is an object of the invention to the problems in for the above-mentioned prior art, provide a kind of fine adjustment biphase gas and liquid flow
Platform is tested, actual condition can be simulated, realizes the accurate control of gas liquid ratio, it is real-time to test data collection, have preferable anti-dry
Disturb ability.
To achieve these goals, the technical solution adopted by the present invention is：
Gas phase including being connected respectively with air and liquid mixer generates component and generates component with liquid phase；Gas phase generates component and includes
The air compressor machine and gas buffer tank being connected successively with air compressor machine, y-type filter and gas liquid ratio regulation and control module, gas liquid ratio regulation and control mould
Block includes the gas regulating branch equipped with gas precision regulating valve and metal pipe float flow meter；Liquid phase generates component and includes water pot
And the gas-removing filter and liquid being connected successively with water pot by centrifugal pump regulate and control parallel branch, liquid regulates and controls in parallel branch
Equipped with liquid control valve door and mass flowmenter；Air and liquid mixer is flowed out by homogenizer connection experiment pipeline, experiment pipeline
Gas phase is drained into air by gas-fluid two-phase mixture by cyclone separator, and liquid phase returns to water pot；
The experiment pipeline include by horizontal pipeline, vertical duct, inclination climb pipeline and Downward inclined tube road it is mutual
It connects a plurality of circuit formed and the biphase gas and liquid flow being arranged on each circuit captures photographic device；
The inlet and outlet of the experiment pipeline set one group of pressure transmitter and temperature transmitter, gas liquid ratio regulation and control mould respectively
The both ends pipeline of block sets one group of pressure transmitter and temperature transmitter respectively, is set on the entrance pipe of liquid regulation and control parallel branch
Pressure transmitter and temperature transmitter are equipped with, branch road is equipped with pressure transmitter where testing each circuit of pipeline；Quality stream
Gauge and metal pipe float flow meter and all pressure transmitters are all connected with PLC controller with temperature transmitter.
The experiment pipeline is arranged on steel construction pipe support, and biphase gas and liquid flow captures photographic device and includes being connected with pipeline
Transparent tube body and the conducting probe that is arranged in transparent tube body, the outside of transparent tube body is provided with high-speed camera.
Biphase gas and liquid flow captures photographic device and includes the LED light for high-speed camera to be assisted to shoot transparent tube body
Source.
The return duct of connect band return valve on water pot, return valve are connected to the pipeline between centrifugal pump and gas-removing filter
On.
Gas regulating branch circuit parallel connection is provided with two, and two gas regulating branches are with being provided with separately the pipeline phase of valve simultaneously
Connection；The liquid regulation and control parallel branch includes three branches being arranged in parallel, and every branch road is equipped with mass flowmenter, matter
It measures and liquid control valve door is equipped on the both ends pipeline of flowmeter, three liquid regulation and control parallel branches and the pipe for being provided with separately valve
Road is in parallel.
Flow steadying grid is equipped in the water pot, the side of water pot is equipped with glass-tube liquid level meter, and the bottom of water pot is equipped with draining
Valve.
Experiment pipeline includes the first circuit being connected to form by horizontal pipeline and vertical duct, and horizontal pipeline is soft by metal
Pipe is tilted with first climbs pipeline and the first Downward inclined tube road is connected to form the second circuit, and first, which tilts the pipeline that climbs, passes through gold
Belong to hose in parallel second and tilt the pipeline that climbs, second, which tilts the pipeline that climbs, connects the second Downward inclined tube road, and second tilts decline
Pipeline is in parallel with the first Downward inclined tube road by metal hose, and second, which tilts the pipeline that climbs, connects the second Downward inclined tube road group
Into third circuit.
Compared with prior art, the present invention has following advantageous effect：Experiment pipeline is arranged on homogenizer and whirlwind
Between separator, homogenizer connection air and liquid mixer, gas phase generates the compressed air come out in component from air compressor machine and passes through gas
Surge tank carries out stable, y-type filter and is filtered, and then carries out entering gas after measure control by gas liquid ratio regulation and control module
Liquid mixer, the water that liquid phase generates in component from water pot out are de-gassed purification by centrifugal pump supercharging, gas-removing filter,
Then regulate and control parallel branch by liquid and enter air and liquid mixer later into every trade measure control, biphase gas and liquid flow is in gas-liquid mixed
It is mixed again into homogenizer after mixing for the first time in device, the gas-liquid mixture of full and uniform mixing enters experiment pipeline, real
It tests pipeline to be made of the tilting section of the horizontal segment with different tube diameters, vertical section and tilt adjustable, be bonded with actual condition tightly
It is close.Cyclone separator and gas-removing filter implement two-stage separation, and pass through fine adjustment valve and strictly regulate and control gas to gas-liquid mixture
Liquor ratio captures photographic device and is able to record flow pattern, synchronous real-time data collection.The present invention is equal by the dynamic and static two-stage of gas-liquid medium
Even mixing, the influence that pressure fluctuation can effectively be inhibited to bring measuring instrumentss and experiment pipeline, test data is accurate, operation
It is convenient.
Description of the drawings
The overall structure diagram of Fig. 1 present invention；
Fig. 2 present invention tests the structure diagram of pipeline；
The control system functional block diagram of Fig. 3 present invention；
In attached drawing：1- cyclone separators；2- water pots；3- flow steadying grids；4- centrifugal pumps；5- air compressor machines；6- gas buffer tanks；7-
Air and liquid mixer；8- homogenizers；9- tests pipeline；10- suction hoses；11- return ducts；12- drainpipes；13- gas buffers tank is arranged
Tracheae；14- air compressor machine exhaust pipes；15- return valves；The first valves of 16-；The second valves of 17-；18- third valves；19- cooled down
Filter；The 4th valves of 20-；The 5th valves of 21-；The 6th valves of 22-；The 7th valves of 23-；24-Y type filters；The 8th valves of 25-
Door；The 9th valves of 26-；27- mass flowmenters；The tenth valves of 28-；The 11st valves of 29-；30- metal pipe float flow meters；
31- gas precision regulating valves；The 12nd valves of 32-；The 13rd valves of 33-；The 14th valves of 34-；The 15th valves of 35-；36-
16th valve；37- drain valves；38- blow valves；The 17th valves of 39-；40- horizontal pipelines；41- vertical ducts；42- first
Inclination is climbed pipeline；The first Downward inclined tubes of 43- road；44- second tilts the pipeline that climbs；The second Downward inclined tubes of 45- road；46-
Transparent tube body；47- metal hoses；48- high-speed cameras；49-LED light sources；50- conducting probes.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, the present invention includes air compressor machine 5, gas buffer tank 6, air and liquid mixer 7, homogenizer 8, water in structure
Tank 2, cyclone separator 1, centrifugal pump 4 and experiment pipeline 9.
Air compressor machine 5 is connected by the import of air compressor machine exhaust pipe 14 and gas surge tank 6, and air compressor machine exhaust pipe 14 is equipped with
5th valve 21, the 6th valve 22 and blow valve 38.One end of gas buffer tank exhaust pipe 13 and the outlet phase of gas surge tank 6
Even, the other end of gas buffer tank exhaust pipe 13 is connected with one end of metal pipe float flow meter 30.
The 7th valve 23 and y-type filter 24 are equipped on gas buffer tank exhaust pipe 13.
Metal pipe float flow meter 30 is between the 11st valve 29 and gas fine adjustment valve 31, metal pipe float stream
Gauge 30 is parallel with the 12nd valve 32, and the other end and air and liquid mixer 7 of metal pipe float flow meter 30 connect, and metal tube floats
The 13rd valve 33 and the 14th valve 34 are equipped between subflow gauge 30 and air and liquid mixer 7.
Flow steadying grid 3 built in water pot 2, side are equipped with glass-tube liquid level meter, and equipped with drain valve 37.
The outlet of water pot 2 is connected by the import of suction hose 10 and centrifugal pump 4, and suction hose 10 is equipped with the first valve 16.
The outlet of centrifugal pump 4 is connected with one end of drainpipe 12, on drainpipe 12 successively be equipped with third valve 18, the second valve 17,
19 and the 4th valve 20 of gas-removing filter.Return duct 11 is equipped between drainpipe 12 and water pot 2, one end of return duct 11 is located at second
Between valve 17 and gas-removing filter 19, the other end and water pot 2 of return duct 11 connect, the other end and quality stream of drainpipe 12
One end connection of gauge 27, for mass flowmenter 27 between the 9th valve 26 and the tenth valve 28, mass flowmenter 27 is in parallel
There is the 8th valve 25, the other end and air and liquid mixer 7 of mass flowmenter 27 connect.
The outlet of air and liquid mixer 7 is connect with the entrance of homogenizer 8, the outlet of homogenizer 8 and one end company for testing pipeline 9
It connects, the 17th valve 39 and the 15th valve 35 is equipped between homogenizer 8 and experiment pipeline 9.
The other end and connection cyclone separator 1 for testing pipeline 9 connect.
The compressed air come out from air compressor machine 5 is stablized through gas buffer tank 6, y-type filter 24 filters, metal pipe float stream
Gauge 30 enters air and liquid mixer 7 after measuring；Water in water pot 2 out is pressurized through centrifugal pump 4, gas-removing filter 19 deaerates only
Change, enter mixer 7 after the metering of mass flowmenter 27.By controlling to adjust the aperture of valve, match out different range of flows and
Different phase contents；Gas and water two-phase mixes again in air and liquid mixer 7 after first mixing into homogenizer 8, through fully
The gas-liquid mixture of even mixing enters experiment pipeline 9, goes out the gas-fluid two-phase mixture of stream through whirlwind separator from experiment pipeline 9
After 1 separation, gas phase is discharged into air, and water phase returns to water pot, re-uses.Return valve 15 on return duct 11, can be to liquid phase stream
Amount is tentatively adjusted, and the bleed pressure before metal pipe float flow meter 30 is entered by raising, that is, increases metal pipe float
The pressure difference at float both ends in flowmeter 30 can eliminate influence of the pressure oscillation of downstream experiment pipeline 9 to gas dosing.
The air compressor machine 5 and centrifugal pump 4 of the present invention uses frequency control.
Referring to Fig. 2, experiment pipeline 9 of the invention includes the inclination of horizontal pipeline 40, first and climbs under the inclination of pipeline 42, first
Drop pipeline 43, second tilts climb pipeline 44, the second Downward inclined tube road 45, vertical duct 41, transparent tube body 46, metal hose
47th, high-speed motion picture camera 48 and LED light source 49.Horizontal pipeline 40 and vertical duct 41 connect, and form the first circuit；Horizontal pipeline
40 and first tilt climb pipeline 42, the first Downward inclined tube road 43 and are connected by metal hose 47, form the second circuit；First
The inclination inclination of pipeline 42 and second pipeline 44 that climbs that climbs is connected by metal hose 47, the first Downward inclined tube road 43 and second
Downward inclined tube road 45 is connected by metal hose 47, and second, which tilts 44 and second Downward inclined tube road 45 of pipeline of climbing, forms the
Three circuits；Flow switching is carried out by cut-out cock between three circuits.
Specifically, three circuits that experiment pipeline 9 includes are using seamless steel pipe, and be designed with the lucite tube of long 2m
As transparent tube body 46 for flow-pattern observation, transparent tube body 46 is internally provided with groove, annular for setting annular conducting probe 50
Conducting probe 50 tests and method is used between pipeline 9 and transparent tube body 46 for measuring section average holdup and section distributed mutually
Orchid is tightly connected；For LED light source 49 for providing secondary light source, high-speed motion picture camera 48 synchronizes the two-phase flow in transparent tube body 46
Reversible-light shooting, clearly to capture the gas liquid two-phase flow of various states.First circuit uses DN80 pipelines, is of an L-shaped structure；The
Two circuits use DN50 pipelines, and third circuit uses DN25 pipelines, the second circuit and the U-shaped structure of third circuit, the second ring
The inlet and outlet of road and third circuit are flexibly connected using metal hose, and adjust inclination angle up and down as fulcrum.
Referring to Fig. 1, the import and export of gas regulating branch is respectively provided with one group of pressure and temperature transmitter, the pressure of entrance
And temperature transmitter is located between 24 and the 11st valve 29 of y-type filter, the pressure and temperature transmitter in exit is located at gas
Between body fine adjustment valve 31 and the 13rd valve 33.The entrance of liquid regulation and control parallel branch is equipped with one group of pressure and temperature and becomes
It send, pressure and temperature transmitter is between the 4th valve 20 and the 9th valve 26；The inlet and outlet of experiment pipeline 9 are respectively provided with one group
Pressure and temperature transmitter, between the 15th valve 35 and the 16th valve 36；
Referring to Fig. 2,2 pressure transmitters are equipped between each block valve of experiment circuit 9.Real time monitoring system by pressure,
Temperature, flow send device, data collecting card, signal acquisition case, host, switch board, high-speed motion picture camera, LED light source composition, all
Measuring signal is standard 4~20mA signals, and incoming data vasculum supplies computer acquisition, signal acquisition case arrangement voltage and current
Conversion circuit and 24V DC power supplies can be that pressure and flow transmitter are powered, and 4~20mA current signals of transmitter are turned
The voltage signal of 1-5V is changed to for computer acquisition, and passes through configuration software and experimental bench operating status is monitored in real time.
Claims (7)
1. a kind of fine adjustment air and liquid twophase flow experiment platform, it is characterised in that：Including the gas being connected respectively with air and liquid mixer (7)
It mutually generates component and generates component with liquid phase；Gas phase generates component and includes air compressor machine (5) and the gas being connected successively with air compressor machine (5)
Body surge tank (6), y-type filter (24) and gas liquid ratio regulation and control module, gas liquid ratio regulation and control module include being equipped with gas precision adjusting
The gas regulating branch of valve (31) and metal pipe float flow meter (30)；Liquid phase generate component include water pot (2) and by from
Gas-removing filter (19) and liquid the regulation and control parallel branch that heart pump (4) is connected successively with water pot (2), liquid regulate and control in parallel branch
Equipped with liquid control valve door and mass flowmenter (27)；Air and liquid mixer (7) connects experiment pipeline (9) by homogenizer (8), real
Gas phase is drained into air by the gas-fluid two-phase mixture for testing pipeline (9) outflow by cyclone separator (1), and liquid phase returns to water pot (2)；
The experiment pipeline (9) including by horizontal pipeline (40), vertical duct (41), tilt and climb pipeline and Downward inclined tube road phase
Connect a plurality of circuit to be formed and the biphase gas and liquid flow being arranged on each circuit capture photographic device；The experiment
The inlet and outlet of pipeline (9) set one group of pressure transmitter and temperature transmitter, the both ends pipeline point of gas liquid ratio regulation and control module respectively
One group of pressure transmitter and temperature transmitter are not set, pressure transmitter is provided on the entrance pipe of liquid regulation and control parallel branch
And temperature transmitter, branch road is equipped with pressure transmitter where each circuit of experiment pipeline (9)；Mass flowmenter (27) and gold
Belong to pipe suspended body flowmeter (30) and all pressure transmitters and be all connected with PLC controller with temperature transmitter.
2. fine adjustment air and liquid twophase flow experiment platform according to claim 1, it is characterised in that：The experiment pipeline
(9) be arranged on steel construction pipe support, biphase gas and liquid flow capture photographic device include the transparent tube body (46) that is connected with pipeline and
The conducting probe (50) being arranged in transparent tube body (46), the outside of transparent tube body (46) are provided with high-speed camera (48).
3. fine adjustment air and liquid twophase flow experiment platform according to claim 2, it is characterised in that：The biphase gas and liquid flow
It captures photographic device and includes the LED light source (49) for high-speed camera (48) to be assisted to shoot transparent tube body (46).
4. fine adjustment air and liquid twophase flow experiment platform according to claim 1, it is characterised in that：Connect band on water pot (2)
The return duct (11) of return valve (15), the pipeline between return valve (15) connection centrifugal pump (4) and gas-removing filter (19).
5. fine adjustment air and liquid twophase flow experiment platform according to claim 1, it is characterised in that：The gas regulating branch
Road has been arranged in parallel two, and two gas regulating branches are in parallel with being provided with separately the pipeline of valve；The liquid regulation and control are simultaneously
Connection branch includes three branches being arranged in parallel, and every branch road is equipped with mass flowmenter (27), mass flowmenter (27)
Liquid control valve door is equipped on the pipeline of both ends, three liquid regulation and control parallel branches are in parallel with being provided with separately the pipeline of valve.
6. fine adjustment air and liquid twophase flow experiment platform according to claim 1, it is characterised in that：In the water pot (2)
Equipped with flow steadying grid (3), the side of water pot (2) is equipped with glass-tube liquid level meter, and the bottom of water pot (2) is equipped with drain valve (37).
7. fine adjustment air and liquid twophase flow experiment platform according to claim 1, it is characterised in that：The experiment pipeline
(9) including the first circuit being connected to form by horizontal pipeline (40) and vertical duct (41), horizontal pipeline (40) is soft by metal
Pipe (47) is tilted with first climbs pipeline (42) and the first Downward inclined tube road (43) is connected to form the second circuit, and the first inclination is climbed
Riser road (42) is tilted by metal hose (47) parallel connection second and climbed pipeline (44), and second tilts pipeline (44) connection the of climbing
Two Downward inclined tube roads (45), the second Downward inclined tube road (45) pass through metal hose (47) and the first Downward inclined tube road (43)
Parallel connection, second, which tilts the pipeline (44) that climbs, connects the second Downward inclined tube road (45) composition third circuit.
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| CN201810272090.8A CN108225729B (en) | 2018-03-29 | 2018-03-29 | Accurate regulation gas-liquid two-phase flow experiment table |
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| CN109577923A (en) * | 2018-12-03 | 2019-04-05 | 重庆大学 | It is a kind of for measure coal-bed gas exploitation test when reverse irrigation amount device |
| CN109946041A (en) * | 2019-04-11 | 2019-06-28 | 燕山大学 | A kind of flow-field visualized property test platform of biphase gas and liquid flow and test method |
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| CN111912743A (en) * | 2020-07-10 | 2020-11-10 | 中国石油大学胜利学院 | Gas-liquid two-phase jet flow oil pipe outer surface cleaning experimental device and method |
| CN112362297A (en) * | 2020-10-19 | 2021-02-12 | 中国科学院合肥物质科学研究院 | Divertor purging test loop data acquisition system and method |
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