CN205965133U - Mass dryness fraction distributor such as coaxial two -phase flow of spiral -flow type gas -liquid - Google Patents
Mass dryness fraction distributor such as coaxial two -phase flow of spiral -flow type gas -liquid Download PDFInfo
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- CN205965133U CN205965133U CN201620755329.3U CN201620755329U CN205965133U CN 205965133 U CN205965133 U CN 205965133U CN 201620755329 U CN201620755329 U CN 201620755329U CN 205965133 U CN205965133 U CN 205965133U
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Abstract
The utility model provides a mass dryness fraction distributor such as coaxial two -phase flow of spiral -flow type gas -liquid, including main line and top -down coaxial -type setting in proper order the inside buffering transition pipeline of trunk line, gas -liquid cyclone separator, two -phase flow rectification pipeline section, intraductal fluid separating device, etc. Component duct. The utility model discloses regardless of the gas -liquid two -phase incoming flow be which kind of flow pattern, all can utilize swirler to become double -phase incoming flow people along the annular flow type of center pin symmetry for the rectification, promptly along circular wall evenly distributed's the gas column nuclear that waits for thickness liquid membrane ring with concentrate on the circular pipeline center, then according to the symmetrical principle of branches such as circular pipeline, utilize intraductal fluid separating device to divide into the two -phase flow runner of multiple -limb as required with the circular channel, realize the purpose that mass dryness fraction such as each branch distributes.
Description
Technical field
This utility model such as is related at mass dryness fraction distributor, the specifically mass dryness fraction such as the spiral-flow type gas-liquid coaxial two phase flow distribution
Device.
Background technology
" phase " in this utility model refers to physical property identical each several part in multiphase flow.Wherein gas phase and liquid phase were both permissible
Formula one-component material or the homogeneous mixture of multi-component material.Biphase gas and liquid flow distribution is in oil exploitation and conveying, energy
Source and power etc. are widely present in field.For System Parameter Design and field apparatus safety, controllability requirement it is desirable to point
The gas-liquid two-phase fluid being fitted in each branch road all has identical gas-liquid mass ratio example, that is, according to etc. mass dryness fraction principle be allocated.
But in current two-phase fluid distribution, because biphase gas and liquid flow volume property, pipe network structure difference are different with outlet back pressure, lead to gas
Generally existing phenomenon of phase separation during liquid two-phase partitioning, causes the mass dryness fraction between each branch road that obvious deviation occurs, have impact on
Produced on-site and transportation load.
At present, both at home and abroad main with distribution method include:Container type split-phase combined method, the split-phase combined method of duct type
And symmetric form distribution method.
The principle of container type split-phase combined method is to utilize gravity or cyclone mode by gas-liquid two-phase flow point using tun
From becoming single phase gas and liquid, then pass through single facies-controlled method and be allocated and measure, finally by the gas-liquid after distributing
Two-phase fluid is mixed, and realizes the purpose of the mass dryness fractions such as each branch gas-liquid two-phase distribution.Such as United States Patent (USP) 4688168
METHOD AND APPARATUS FOR DETERMINING MASS FLOW RATE AND QUALITY IN A STEAM
LINE becomes single-phase steam and water using cyclonic separation, after single-phase measurement, controls each phase mass flow, realizes each branch etc. and does
Degree.Shortcoming is that initial outlay is high, and device fabrication and maintenance cost are high, and structural volume is big, scene application shortcoming motility.And it is Chinese
Patent CN102536182A equally adopts bulk container dilatation, and the thinking using Gravity Separation gas phase and liquid phase and then recombinant reaches
Distribute purpose etc. mass dryness fraction, its shortcoming is equally bulky with United States Patent (USP), complex structure, whole cost height is it is impossible to carry out extensively
Promote.
The principle of the split-phase combined method of duct type is using the reducer tee being disposed vertically or four-way, using gas-liquid density
Two-phase fluid is separated by difference by the mode of gravity, is then allocated rear recombinant.Such as United States Patent (USP) US6250131
APPARATUS AND METHOD FOR CONTROLLING AND MEASURING STEAM QUALITY and US5415195
METHOD AND APPARATUS FOR CONTROLLING PHASE SPLITTING AT BRANCH T PIPE
JUNCTIONS, and Chinese patent CN101402004A, CN102536182A is all using principles above design.Its structure
The split-phase combined method of respective container formula greatly simplifies, and trial-production processing charges reduces a lot, favorably scene popularization.Shortcoming is to work as to flow
Flow and flow velocity increase, when particularly main line is annular flow, because liquid inertia is big, fluid when down-comer, liquid
Mutually it is difficult to, completely into down-comer, lean on merely gravity and down-comer to be also difficult to make gas phase and liquid phase be kept completely separate, gas phase pipe simultaneously
Carry a large amount of liquid phases in road, the mass dryness fraction distribution effects such as have impact on.
Symmetric form distribution method principle is the symmetrical each branch outlet of the port of export in allotter, makes each of entrance in theory
The gas-liquid two-phase fluid flow on road is equal, the mass dryness fraction distribution purpose such as realization.Such as United States Patent (USP) US5010910 and US4505297
STEAM DISTRIBUTION MANIFOLD, is based on this thinking.Shortcoming is under different flow patterns, velocity flow profile or each
Although structure is full symmetric when road flow is unequal, but each branch road mass dryness fraction cannot guarantee that completely consistent, impact distribution effect
Really.
Utility model content
The purpose of this utility model is to provide a kind of mass dryness fraction distributors such as the coaxial two phase flow of spiral-flow type gas-liquid, this distribution
Device no matter gas-liquid two-phase comes which kind of flow pattern stream is, all can using cyclone biphase come person who lives in exile for being rectified into along substantially symmetrical about its central axis
Ring-type flow pattern, that is, along circular wall equally distributed equal thickness liquid film ring with the gas column core that concentrates on circular pipe center, so
Afterwards according to circular pipe etc. point symmetry principle, circular channel is divided on demand the biphase of multiple-limb using tube fluid separating device
Stream runner, realizes the purpose of the mass dryness fractions such as each branch distribution.
The purpose of this utility model can be achieved by the following technical measures：
The mass dryness fraction distributors such as this coaxial two phase flow of spiral-flow type gas-liquid, including main line and sequentially coaxially formula from top to bottom
It is arranged on buffering transition pipe within main pipeline, gas-liquid cyclone separator, biphase gas and liquid flow rectification pipeline section, tube fluid separate dress
Put, etc. subchannel.
The purpose of this utility model also can be achieved by the following technical measures：
Described cyclone is made up of 4-8 piece helical blade, and blade height is less than the entrance diameter of buffering transition pipe
0.6 times, there is no central shaft, be fixed in circular pipe.
Described tube fluid separating device is rotation etc. point separating device, and rotation etc. point separating device is by 12-24 piece dividing plate
Grid of composition etc. point circular flow channel, this device is promoted by carrying out flowing liquid.
The subchannel such as described is at least second-class subchannel.
This utility model has the advantages that：
This utility model is being uniformly rectified into the liquid film of the uniform wall thickness being close to tube wall and the gas of center to flow in pipe
Post is two parts, therefore only needs to carry out decile separation in pipe, it is possible to the purpose of the mass dryness fraction such as realization, decrease and separate and divide
Arrange standby, improve distribution effects, saved investment.
This utility model utilizes swirl-flow devices and tube fluid separating device, using the means of eddy flow forced flow, increases
The flow pattern of gas-liquid two-phase flow scope of application, is applicable not only to stratified flow under low flow velocity, wavy stratified flow patterns, applies also for high flow rate
Under annular flow and slug flow.
This utility model distributor and method are applied to the gas-liquid two-phase fluid distribution of various media, for example, air and
Water, steam and water, profit and associated gas, refrigeration working medium etc..
Brief description
Fig. 1 is the flow pattern schematic diagram of the annular flow under gas-liquid two-phase fluid stratified flow and high speed in horizontal circular pipe；
The stratified flow A-A sectional view that the pipeline section for Fig. 1 for the Fig. 2 shows；
Fig. 3 be Fig. 1 cyclone biphase come person who lives in exile be to be rectified into along ring-type flow pattern Q-Q sectional view substantially symmetrical about its central axis,
I.e. along circular wall equally distributed equal thickness liquid film ring and the gas column core concentrating on circular pipe center.
Fig. 4 is the flow pattern schematic diagram of the annular flow under gas-liquid two-phase fluid stratified flow and high speed in vertical circular pipe；
The annular flow B-B sectional view that the pipeline section for Fig. 4 for the Fig. 5 shows,
Fig. 6 be Fig. 4 cyclone biphase come person who lives in exile be to be rectified into along ring-type flow pattern Q-Q sectional view substantially symmetrical about its central axis,
I.e. along circular wall equally distributed equal thickness liquid film ring and the gas column core concentrating on circular pipe center.
Fig. 7 is the schematic diagram of the mass dryness fraction distributor such as spiral-flow type is coaxial of this utility model three branch；
Fig. 8 is the F-F sectional view of Fig. 7；
Fig. 9 is the G-G sectional view of Fig. 7；
Figure 10 is the H-H sectional view of Fig. 7.
Figure 11 is the schematic diagram of the mass dryness fraction distributor such as spiral-flow type is coaxial of this utility model four branch；
Figure 12 is the I-I sectional view of Figure 11；
Figure 13 is the J-J sectional view of Figure 11；
Figure 14 is the K-K sectional view of Figure 11；
Figure 15 A is gas-liquid cyclone separator sectional view；
Figure 15 B is helical blade schematic diagram；
Figure 16 be tube fluid separating device, etc. subchannel connect axonometric chart；
Figure 17 A is tube fluid separating device front view；
Figure 17 B is tube fluid separating device axonometric chart.
In figure：1st, main line；2nd, buffer transition pipe；3rd, gas-liquid cyclone separator；4th, biphase gas and liquid flow rectification pipeline section；5th, in managing
Fluid separation apparatus；The 6th, the subchannel such as.
Specific embodiment
Relevant detailed description of the present utility model and technology contents, cooperation brief description is as follows, but accompanying drawing only provides ginseng
Examine and purposes of discussion, be not used for this utility model is any limitation as.
Embodiment 1：
Fig. 7 is the schematic diagram of the mass dryness fraction distributor such as spiral-flow type is coaxial of this utility model three branch；Wherein Fig. 8 F-F is
Two phase flow signals cross-sectional view taking stratified flow as a example, Fig. 9 G-G cyclone is rectification along annular flow substantially symmetrical about its central axis
Type, Figure 10 H-H is the cross-sectional view after tube fluid separation taking three branches as a example.
As shown in Fig. 7, Fig. 8, Fig. 9, Figure 10, the mass dryness fraction distributor such as spiral-flow type gas-liquid is coaxial, include main line 1, buffer
Transition pipe 2, gas-liquid cyclone separator, tube fluid separating device 5, biphase gas and liquid flow rectification pipeline section 4, etc. subchannel 6.With three branches
As a example mass dryness fraction allotter, due to the complicated components of two-phase fluid, different flow patterns can be assumed in pipeline, flowed by main line 1
The two-phase fluid entering enters buffering transition pipe 2 with various different flow patterns, subsequently enters the spiral-flow type rectification dress being attached thereto
Put 3, develop into coaxial gas-liquid annular flow in biphase gas and liquid flow rectification pipeline section 4 after the spiral-flow type fairing, that is, be close to manage
The liquid film of the uniform thickness of wall and middle gas column core, then keep the two phase flow of this flow profile to enter tube fluid and separate dress
Put 5, using tube fluid separating device press branch's number by the uniform gas-liquid two-phase annular flow even partition of artificial rectification become with
What branch's number was equal waits subchannel, enters and each waits subchannel 6, and each several part gas-liquid mixture being separated in the case is equal
Keep gas phase flow rate and the liquid phase flow of decile, thus reaching the purpose of the mass dryness fractions such as each branch distribution.
Shown in Figure 15 A, Figure 15 B, described cyclone 3 is made up of 4-8 piece helical blade, and blade height is less than buffering transition conduit
0.6 times of the entrance diameter on road 2, does not have central shaft, is fixed in circular pipe.
Shown in Figure 16, Figure 17 A, Figure 17 B, tube fluid separating device 5 is rotation etc. point separating device, and rotation etc. point separates
Grid that device is made up of 12-24 piece dividing plate etc. point circular flow channel, this device is promoted by carrying out flowing liquid, rotates in pipeline,
Standard annular flow after rectification is radially further divided into the tiny circulation passage of mass dryness fraction such as respective by 360 degree.Deng subchannel 6
Exactly by point circular channels such as the fixations needing distribution number to determine.Grid demarcation strip thickness wall thickness 2mm-5mm, length is pipeline
1-2 times of diameter.When the fluid flowing out from point separating devices such as rotations subsequently into follow-up one-to-two, one point three, one point four, one point
5th, one point six of assignment channel, the distribution of mass dryness fraction such as realizes more than one point.Tube fluid separating device 5 rotates (liquid-driving rotation
Or additionaling power rotate) device part and satisfaction different branches (more than 2-6 branch) require etc. mass dryness fraction allocative decision.
Embodiment 2：
Figure 11 is the schematic diagram of the mass dryness fraction distributor such as spiral-flow type is coaxial of this utility model four branch；Wherein Figure 12 I-I
It is two phase flow signals cross-sectional view taking stratified flow as a example, Figure 13 J-J cyclone is rectification along ring-type substantially symmetrical about its central axis
Flow pattern, Figure 14 K-K is the cross-sectional view after tube fluid separation taking four branches as a example.
As shown in Figure 11, Figure 12, Figure 13, Figure 14, the distribution principle of the mass dryness fraction allotter such as four branches and multiple-limb and side
Method is coaxial with three branch's spiral-flow type gas-liquids etc., and mass dryness fraction distributor is identical, and simply exit passageway number is different with shape, but all
According to circular pipe etc. point symmetry principle, using tube fluid separating device, circular channel is divided on demand the two phase flow of multiple-limb
Runner.
In a word, this utility model adopts the means of eddy flow forced flow, increased the flow pattern of gas-liquid two-phase flow scope of application, no
It is only applicable to stratified flow under low flow velocity, wavy stratified flow patterns, apply also for the annular flow under high flow rate and slug flow.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, its
He uses the equivalence changes of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (4)
1. a kind of mass dryness fraction distributor such as coaxial two phase flow of spiral-flow type gas-liquid is it is characterised in that include main line and from upper
Under sequentially coaxially formula be arranged on buffering transition pipe within main pipeline, gas-liquid cyclone separator, biphase gas and liquid flow rectification pipeline section, in pipe
Fluid separation apparatus, etc. subchannel.
2. a kind of mass dryness fraction distributor such as coaxial two phase flow of spiral-flow type gas-liquid according to claim 1 is it is characterised in that institute
State cyclone to be made up of 4-8 piece helical blade, blade height is less than 0.6 times of the entrance diameter of buffering transition pipe, does not have
Central shaft, is fixed in circular pipe.
3. a kind of mass dryness fraction distributor such as coaxial two phase flow of spiral-flow type gas-liquid according to claim 1 is it is characterised in that institute
Stating tube fluid separating device is rotation etc. point separating device, the grid that rotation etc. point separating device is made up of 12-24 piece dividing plate
Decile circular flow channel, this device is promoted by carrying out flowing liquid.
4. a kind of mass dryness fraction distributor such as coaxial two phase flow of spiral-flow type gas-liquid according to claim 1 is it is characterised in that institute
The subchannel such as state and be at least second-class subchannel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620755329.3U CN205965133U (en) | 2016-07-18 | 2016-07-18 | Mass dryness fraction distributor such as coaxial two -phase flow of spiral -flow type gas -liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620755329.3U CN205965133U (en) | 2016-07-18 | 2016-07-18 | Mass dryness fraction distributor such as coaxial two -phase flow of spiral -flow type gas -liquid |
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| Publication Number | Publication Date |
|---|---|
| CN205965133U true CN205965133U (en) | 2017-02-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620755329.3U Active CN205965133U (en) | 2016-07-18 | 2016-07-18 | Mass dryness fraction distributor such as coaxial two -phase flow of spiral -flow type gas -liquid |
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| CN (1) | CN205965133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626119A (en) * | 2016-07-18 | 2018-01-26 | 中国石油化工股份有限公司 | Mass dryness fraction distributor and the methods such as the coaxial two phase flow of spiral-flow type gas-liquid |
| CN111075416A (en) * | 2019-12-12 | 2020-04-28 | 中国石油化工股份有限公司 | Gas-liquid equal-dryness constant-flow intelligent regulation and control device |
-
2016
- 2016-07-18 CN CN201620755329.3U patent/CN205965133U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626119A (en) * | 2016-07-18 | 2018-01-26 | 中国石油化工股份有限公司 | Mass dryness fraction distributor and the methods such as the coaxial two phase flow of spiral-flow type gas-liquid |
| CN111075416A (en) * | 2019-12-12 | 2020-04-28 | 中国石油化工股份有限公司 | Gas-liquid equal-dryness constant-flow intelligent regulation and control device |
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| GR01 | Patent grant |