CN106215734A - A kind of high efficient gas and liquid blender for air and liquid twophase flow experiment - Google Patents
A kind of high efficient gas and liquid blender for air and liquid twophase flow experiment Download PDFInfo
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- CN106215734A CN106215734A CN201610785276.4A CN201610785276A CN106215734A CN 106215734 A CN106215734 A CN 106215734A CN 201610785276 A CN201610785276 A CN 201610785276A CN 106215734 A CN106215734 A CN 106215734A
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- Prior art keywords
- dividing plate
- liquid
- gas transmission
- air
- gas
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3132—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices
- B01F25/31322—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices used simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/2319—Methods of introducing gases into liquid media
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3133—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit characterised by the specific design of the injector
Abstract
The present invention relates to a kind of air and liquid mixer, particularly to a kind of high efficient gas and liquid blender for air and liquid twophase flow experiment platform.Being provided with gas transmission dividing plate in main flow pipe for carrying gas phase, the angle of attack that each gas transmission dividing plate front portion is arranged is conducive to the flowing of fluid, reduces drag losses；Each gas transmission dividing plate afterbody is provided with shrinkage type jet pipe, by the design to import cross section so that the air-flow flowed out through nozzle has identical discharge state；Simultaneously through the jet-action of jet pipe, can increase the contact area of gas and liquid, make mixing evenly, the axisymmetric mode that uses of each gas transmission dividing plate arranges that the stress also making mixing produce is uniformly distributed；In sleeve, symmetrically arranged stator has the effect of water conservancy diversion, can reduce the impact loss of flowing, by being calculated gas transmission dividing plate inlet length, the span of stator length, can reduce the impact loss of flowing, at utmost keep flow regime stable.
Description
Technical field
The present invention relates to a kind of air and liquid mixer, mix particularly to a kind of high efficient gas and liquid for air and liquid twophase flow experiment platform
Clutch.
Background technology
Biphase gas and liquid flow mechanics is a hydromechanical new and developing branch, and its learning gas and liquid two-phase medium are altogether
With the flowing law under the conditions of flowing.The Research And Engineering technical progress of gas-liquid two-phase flow problem is closely related, at 19th-century
End, the research to boiler and water circulation problem has just had been directed to biphase gas and liquid flow flow field problem.Nineteen thirties,
According to the needs of production development, the research work of biphase gas and liquid flow launches day by day.After nineteen fifty, along with middle high in power industry
The introducing of temperature high voltage parameter, and aerospace, the development of Nuclear Power Industry, the relevant issues such as flow mechanism for biphase gas and liquid flow are entered
Go relatively in-depth study.Nearly ten years, along with flow mechanism, liquid form and influence factor thereof to biphase gas and liquid flow, stream
The research of the problems such as the distribution of dynamic phase and frictional resistance calculating, the research of gas-liquid two-phase flow problem has been enter into a gradual perfection
The new disciplines stage.Although experiment and theoretical research to biphase gas and liquid flow are achieved with notable achievement up to now, but by
In the limitation of intrinsic complexity, multiformity and the means of testing of gas-liquid two-phase flow problem, therefore so far for biphase gas and liquid flow
Flow mechanism, flow pattern is formed, and drag characteristic, quality, momentum and energy transmission etc. are the most fully aware of, grind biphase gas and liquid flow
Study carefully and have to use empirical formula based on experimental data or semi-empirical relation, or directly carry out experimental simulation research.At present to gas
Can the study hotspot of liquid two-phase be concentrated mainly on Air-C_2H_2 Flame and moves, prepare mixed uniformly sky the most in an experiment
Air-water mixture the most just becomes Success in Experiment whether key, to the improvement of gas-water mixer, optimizes and has for experimentation
Very important meaning.Existing Liqiud-gas mixing device is mainly used in engineering reality, common are pipeline air and liquid mixer, injection
Blender, static mixer, it is simple that they all have flow process, and compact conformation, small investment, operating flexibility are big, easy to maintenance, mixing
The advantage that performance is good.Pipeline blender utilizes high velocity air and liquid directly to liquidate, and can produce huge noise during gas-liquid mixed,
Air-liquid is short for time of contact, and contact area is little, and mixing efficiency is low, the mixing of output medium is uneven；Jet mixer is to flowing pressure
Having certain requirement, often need the auxiliary equipment of booster pump, energy consumption is relatively big, and meanwhile, the air and liquid mixer of both structures all uses
The method of Forced Mixing, flow regime is disorderly, flow losses are bigger；Common static mixer such as helical ribbon mixer,
It often saves blender certain helical blade, and fluid is constantly cut by inside unit by it and produces flow direction change, shape
Become main body stream convection current and vortex movement, although mixed effect is good, but the flow losses that convection current and vortex movement cause the most quite may be used
See.And in two phase flow is tested, in order to observe flow regime, need to keep stable flowing as far as possible, turbulent flow should be avoided
Occur, so seldom using the air and liquid mixer of this type.It can be seen that existing air and liquid mixer all can not meet gas-liquid two
Flow the requirement of laboratory table mutually, therefore on the premise of the high efficient mixed ensureing gas-liquid two-phase, solve existing Liqiud-gas mixing device work
Work exists the problem that flow losses are big, output gas-liquid mixture flow regime is disorderly, two phase flow experimentation very must
Want.
Summary of the invention
The flow losses existed for current gas and water mixer are big, disorderly the asking of output gas-liquid mixture flow regime
Topic, the present invention adds with the gas transmission dividing plate I～IV of three layers of composite hollow structure in gas transmission pipeline, at gas transmission dividing plate I～IV
Anterior and afterbody is respectively arranged with the angle of attack and shrinkage type jet pipe, and the angle of attack is conducive to reducing the drag losses of flowing, and jet pipe can have
The contact area of the increase air-liquid of effect；For enabling air-flow to reach identical flow regime in gas transmission dividing plate I～IV outlet, right
The import sectional area of jet pipe is designed；For reducing the impact loss in flowing, sleeve is symmetrical arranged stator and leads
Stream；Take into full account when design and enter impact loss during gas transmission dividing plate I～IV, accordingly to gas transmission dividing plate I～IV into gas
Import and stator length are calculated, and allow gas to enough steadily, quickly enter gas transmission dividing plate.
Realize above-mentioned purpose be the technical scheme is that
A kind of high efficient gas and liquid blender for air and liquid twophase flow experiment platform, including suction flange, main flow pipe, skeleton oil
Envelope, inlet flange, outlet(discharge) flange, sleeve, air inlet pipe, it is characterised in that also include stator, jet pipe, gas transmission dividing plate I～IV；Described
Gas transmission dividing plate I～IV is installed on inside main flow pipe in axial symmetry mode, gas transmission dividing plate (13) just to air inlet, gas transmission dividing plate I～
IV front portion is equipped with angle of attack θ, and afterbody arranges and is equipped with jet pipe；Described jet pipe is shrinkage type jet pipe, including nozzle inlet and jet pipe
Outlet, described 4 jet pipes have identical outlet and have the import cross section of certain proportion relation；Described stator quantity is
2, it is symmetricly set in sleeve inner away from inlet port.
In order to make air-flow reach identical flow regime, aft mounted 4 of described gas transmission dividing plate I～IV at baffled outlet
The inlet diameter of jet pipe is respectively d13, d14, d15, d16, its proportionate relationship is:
In formula:
d13Gas transmission dividing plate I afterbody nozzle inlet diameter, rice；
d14Gas transmission dividing plate II afterbody nozzle inlet diameter, rice；
d15Gas transmission dividing plate III afterbody nozzle inlet diameter, rice；
d16Gas transmission dividing plate IV afterbody nozzle inlet diameter, rice；
With gas transmission dividing plate afterbody nozzle inlet diameter d16For parameter designing benchmark, data above should round from machining angle.
The a length of l of described stator10, l10Span be:
l9≥l10≥d2+0.84d9Formula two,
In formula:
d2Air inlet diameter, rice；
d9Sleeve diameter, rice；
l9Length sleeve, rice.
For reducing impact loss during gas entrance gas transmission dividing plate, the inlet length of described gas transmission dividing plate I～IV is l, l's
Span is determined by following formula:
d2+d9-d5≥l≥d2+0.43(d9-d5) formula three,
In formula:
d2Air inlet diameter, rice；
d5Main flow pipe diameter, rice；
d9Sleeve diameter, rice.
The angle of attack θ scope of described gas transmission dividing plate I～IV is at 10 ° to 15 °.
The empty cross section of described gas transmission dividing plate I～IV is L-shaped.
The invention have the benefit that
More traditional gas-water mixer, the present invention is provided with gas transmission dividing plate I～IV for carrying gas phase in main flow pipe, defeated
The anterior angle of attack arranged of air bound plate I～IV is conducive to the flowing of fluid, reduces drag losses；Gas transmission dividing plate I～IV afterbody is all provided with
Put shrinkage type jet pipe, by the design to import cross section so that the air-flow flowed out through nozzle has identical discharge state,
Simultaneously through the jet-action of jet pipe, the contact area of gas and liquid can be increased, make mixing evenly, gas transmission dividing plate I～
The stress also making mixing produce that is arranged symmetrically with of IV is uniformly distributed；In sleeve, symmetrically arranged stator has the effect of water conservancy diversion,
By calculating gas transmission dividing plate inlet length, the span of stator length, the impact loss of flowing, maximum journey can be reduced
Degree keeps flow regime stable.
Accompanying drawing explanation
Fig. 1 show the structural representation of the present invention；
Fig. 2 show Section A-A schematic diagram in Fig. 1 of the present invention；
Fig. 3 is the structural representation of gas transmission dividing plate, a-front view, b-top view, c-left view；
Fig. 4 is the profile of gas transmission dividing plate.
Description of reference numerals:
1-water inlet, 2-air inlet, 3-outlet, 4-suction flange, 5-main flow pipe, 6-outside framework oil seal, 7-inlet flange,
8-outlet(discharge) flange, 9-sleeve, 10-stator, 11-jet pipe, 12-air inlet pipe, 13-gas transmission dividing plate I, 14-gas transmission dividing plate II, 15-is defeated
Air bound plate III, 16-gas transmission dividing plate IV, 17-gas transmission dividing plate import, 18-nozzle inlet, 19-nozzle exit.
Detailed description of the invention
In conjunction with accompanying drawing, the specific implementation method of the present invention is illustrated: in order to meet the observation requirement of laboratory table, this
A kind of embodiment of invention is that employing has the preferable transparency, the lucite of stable chemical nature processes.For reality
The function of existing gas-liquid mixed, described gas-water mixer uses horizontal three-port structure, three turnover ports to be respectively provided with flange.Air inlet method
Blue 2 are connected with sleeve 9 by air inlet pipe 12, and suction flange 4 is by main flow pipe 5 connection outlet flange 8, and sleeve 9 is coaxially placed on master
Flow tube 5 is outside, and sleeve 9 is internal is symmetrically arranged with two panels stator 10 away from inlet port, and sleeve about 9 two ends have sealing ditch
Groove, uses the contact surface of outside framework oil seal 7 seal sleeve 9 and main flow pipe 5；Main flow pipe 5 tube wall central authorities are provided with by axial symmetry mode
Four rectangular channels, gas transmission dividing plate I～IV can be inserted in rectangular channel, is arranged in main flow pipe 5 rectangular channel in axial symmetry mode；
Design parameter: d2=0.032m, d5=0.085m, d9=0.15m, l9=0.18m d16=0.012m, determines other
Parameter:
(1) design in each aft mounted nozzle inlet cross section of gas transmission dividing plate I～IV:
Data above needs round numbers by reality processing；
(2) length l of stator 1010Span:
0.18m≥l10>=0.158m formula five
(3) gas transmission dividing plate import 17 length l span:
0.097m >=l >=0.0599m formula six
As it is shown in figure 1, open water inlet, the valve of air pipe during experiment, air enters into through air inlet pipe 12 from air inlet 2
In sleeve 9, the rectangular channel that air-flow is opened by main flow pipe 5 gas transmission dividing plate 13,14,15,16 respectively, now different gas transmission dividing plates 13,
14, the air-flow in 15,16 has different flow velocitys, and they can reach identical when the jet pipe of different cross section arrives outlet
Flow regime, now current flow to main flow pipe 5 afterbody along main flow pipe 5 and mix, through overspray with the gas of nozzle injection at this
The jet-action of pipe 11, air mixes with water herein equably, now adds gas-to-liquid contact face due to the effect of jet pipe 11,
Mixed effect is more uniform, and fluid-mixing finally flows out from outlet 3.
The above is the preferred embodiments of the invention, to those of ordinary skill in the art, is not paying
Go out any improvement in the present invention in the case of any creative work, broadly fall into protection scope of the present invention.
Claims (6)
1. for a high efficient gas and liquid blender for air and liquid twophase flow experiment platform, including suction flange (4), main flow pipe (5), skeleton
Oil sealing (6), inlet flange (7), outlet(discharge) flange (8), sleeve (9), air inlet pipe (12), it is characterised in that: also include stator (10),
Jet pipe (11), gas transmission dividing plate I～IV (13,14,15,16)；Described gas transmission dividing plate I～IV (13,14,15,16) is with axial symmetry side
It is internal that formula is installed on main flow pipe (5), and gas transmission dividing plate (13) is just to air inlet, and gas transmission dividing plate I～IV (13,14,15,16) front portion sets
Having angle of attack θ, afterbody arranges and is equipped with jet pipe (11)；Described jet pipe (11) is shrinkage type jet pipe, including nozzle inlet (18) and spray
Pipe outlet (19), described 4 jet pipes (11) have identical outlet and have the import cross section of certain proportion relation；Described
Stator (10) quantity is 2, is symmetricly set in sleeve (9) internal away from inlet port.
A kind of high efficient gas and liquid blender for air and liquid twophase flow experiment platform the most according to claim 1, it is characterised in that:
The inlet diameter of described aft mounted 4 jet pipes (11) of gas transmission dividing plate I～IV (13,14,15,16) is respectively d13, d14, d15,
d16, its proportionate relationship is:
In formula:
d13Gas transmission dividing plate (13) afterbody nozzle inlet diameter, rice；
d14Gas transmission dividing plate (14) afterbody nozzle inlet diameter, rice；
d15Gas transmission dividing plate (15) afterbody nozzle inlet diameter, rice；
d16Gas transmission dividing plate (16) afterbody nozzle inlet diameter, rice；
With gas transmission dividing plate (16) afterbody nozzle inlet diameter d16For parameter designing benchmark.
A kind of high efficient gas and liquid blender for air and liquid twophase flow experiment platform the most according to claim 1, it is characterised in that:
The a length of l of described stator (10)10, l10Span be:
l9≥l10≥d2+0.84d9Formula two,
In formula:
d2Air inlet diameter, rice；
d9Sleeve diameter, rice；
l9Length sleeve, rice.
A kind of high efficient gas and liquid blender for air and liquid twophase flow experiment platform the most according to claim 1, it is characterised in that:
The span that inlet length is l, l of described gas transmission dividing plate I～IV (13,14,15,16) is determined by following formula:
d2+d9-d5≥l≥d2+0.43(d9-d5) formula three,
In formula:
d2Air inlet diameter, rice；
d5Main flow pipe diameter, rice；
d9Sleeve diameter, rice.
A kind of high efficient gas and liquid blender for air and liquid twophase flow experiment platform the most according to claim 1, it is characterised in that:
The angle of attack θ scope of described gas transmission dividing plate I～IV (13,14,15,16) is at 10 ° to 15 °.
A kind of high efficient gas and liquid blender for air and liquid twophase flow experiment platform the most according to claim 1, it is characterised in that:
The empty cross section of described gas transmission dividing plate I～IV (13,14,15,16) is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785276.4A CN106215734B (en) | 2016-08-30 | 2016-08-30 | A kind of high efficient gas and liquid mixer for air and liquid twophase flow experiment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610785276.4A CN106215734B (en) | 2016-08-30 | 2016-08-30 | A kind of high efficient gas and liquid mixer for air and liquid twophase flow experiment |
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| CN106215734A true CN106215734A (en) | 2016-12-14 |
| CN106215734B CN106215734B (en) | 2019-04-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109908712A (en) * | 2019-04-24 | 2019-06-21 | 攀钢集团钛业有限责任公司 | The air and liquid mixer absorbed for titanium tetrachloride |
| CN109999683A (en) * | 2018-12-17 | 2019-07-12 | 邹权明 | Underwater water-gas mixer |
| CN110559692A (en) * | 2019-07-12 | 2019-12-13 | 江苏大学镇江流体工程装备技术研究院 | Fluid machinery test system degassing unit |
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| EP0006734A1 (en) * | 1978-06-20 | 1980-01-09 | Masahiro Takeda | Self-contained fluid jet-mixing apparatus and method therefor |
| CN2088895U (en) * | 1990-09-27 | 1991-11-20 | 张培恒 | Silensing and damping energy saver by gas and liquid mixing to exchange energy |
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| CN203370474U (en) * | 2013-06-25 | 2014-01-01 | 刘英聚 | Low-pressure-drop gas mixing equipment |
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| CN204522789U (en) * | 2015-02-12 | 2015-08-05 | 宁波同力泵业有限公司 | Multi-point injection air and liquid mixer |
| CN204841440U (en) * | 2015-07-20 | 2015-12-09 | 天津晓沃环保工程股份公司 | Inside has static mixer device of duckbilled type jet |
| CN105771716A (en) * | 2016-05-11 | 2016-07-20 | 西南石油大学 | High-viscosity medium flow distributing type mixer |
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2016
- 2016-08-30 CN CN201610785276.4A patent/CN106215734B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0006734A1 (en) * | 1978-06-20 | 1980-01-09 | Masahiro Takeda | Self-contained fluid jet-mixing apparatus and method therefor |
| CN2088895U (en) * | 1990-09-27 | 1991-11-20 | 张培恒 | Silensing and damping energy saver by gas and liquid mixing to exchange energy |
| CN101690872A (en) * | 2009-10-26 | 2010-04-07 | 刘友宏 | High-pressure water injection mixer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999683A (en) * | 2018-12-17 | 2019-07-12 | 邹权明 | Underwater water-gas mixer |
| CN109999683B (en) * | 2018-12-17 | 2024-01-19 | 邹权明 | Underwater water-gas mixer |
| CN109908712A (en) * | 2019-04-24 | 2019-06-21 | 攀钢集团钛业有限责任公司 | The air and liquid mixer absorbed for titanium tetrachloride |
| CN109908712B (en) * | 2019-04-24 | 2024-04-02 | 攀钢集团钛业有限责任公司 | Gas-liquid mixer for titanium tetrachloride absorption |
| CN110559692A (en) * | 2019-07-12 | 2019-12-13 | 江苏大学镇江流体工程装备技术研究院 | Fluid machinery test system degassing unit |
| CN110559692B (en) * | 2019-07-12 | 2022-02-11 | 江苏大学镇江流体工程装备技术研究院 | Fluid machinery test system degassing unit |
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