CN103894004B - Mass dryness fraction distributor and the methods such as a kind of novel gas-liquid two-phase fluid - Google Patents
Mass dryness fraction distributor and the methods such as a kind of novel gas-liquid two-phase fluid Download PDFInfo
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- CN103894004B CN103894004B CN201410069704.4A CN201410069704A CN103894004B CN 103894004 B CN103894004 B CN 103894004B CN 201410069704 A CN201410069704 A CN 201410069704A CN 103894004 B CN103894004 B CN 103894004B
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Abstract
Mass dryness fraction distributor and the methods such as a kind of novel gas-liquid two-phase fluid, this device comprises the gas-liquid separation pipe with main road pipe communicating downstream, the liquid collection case be communicated with gas-liquid separation pipe and gas collecting box, in main road pipe and gas-liquid separator tube or in gas-liquid separation pipe, light-wall pipe is installed, in main road pipe and light-wall pipe in or in light-wall pipe, swirl-flow devices is installed, the present invention mainly utilizes swirl-flow devices and light-wall pipe that two-phase incoming flow is divided into two parts, a part is monophasic fluid and single phase gas or single-phase liquid, another part most part liquid that relatively should be in incoming flow is attended by most gas in fraction residual gas or incoming flow and is attended by fraction remaining liq, front portion directly enters gas collection case or liquid collection case, rear portion enters gas-liquid separation pipe, gas collection case and liquid collection case is imported respectively within it after gas phase and liquid phase separation, and converge output again after distributing separately, the object that mass dryness fraction is distributed such as to reach, pass through the inventive method, reduce the volume of distributor, wider adaptation has been had to the flow of two phase flow incoming flow and flow pattern.
Description
Technical field
The present invention relates to a kind of fluid distributing apparatus and method, be specifically related to mass dryness fraction distributor and the methods such as a kind of novel gas-liquid two-phase fluid.
Background technology
Two-phase fluid distributes and is extensively present in the fields such as nuclear energy, oil, chemical industry and power.Main road two-phase incoming flow is assigned in each bypass line and gas-liquid ratio in each branch road is consistent, and to be called etc. that mass dryness fraction is distributed.Two-phase fluid etc. mass dryness fraction distribute not only directly related with efficiency and economy under many circumstances, have close relationship with the safe and reliable operation of system especially.Therefore, each branch road that is assigned to of the mass dryness fraction such as two-phase fluid is an important technology.
At present, the main distribution method used comprises both at home and abroad: symmetrical distribution method and phase-splitting combined method.
Symmetrical distribution ratio juris tries hard to structurally accomplish full symmetric, makes two-phase fluid enter the equal thus mass dryness fractions such as realization of the flow of each branch road and distribute.Such as US Patent No. 4505297, US5010910 design inwardly at such.But its shortcoming has, one, structure full symmetric, the each mass dryness fraction of its branch road can not ensure consistent completely, because flow pattern also will be met while ensureing distribution structure symmetry and velocity flow profile symmetry just can make gas phase and even in liquid phase enter each arm, but flow pattern and velocity flow profile are difficult to reach even, such as, US Patent No. 4505297 adds umbrella dividing plate in mixing header, US Patent No. 5010910 arranges tapered blender carrying out inflow entrance, even if like this, find the symmetric form being difficult to ensure flow pattern and velocity flow profile in practice; Its two, each bypass flow also needs symmetry, if having one or several conduit failure in branch road, be affected makes distribution effects be deteriorated to symmetry (structural symmetry and flow pattern velocity flow profile symmetry).
Phase-splitting combination ratio juris is that two-phase fluid is first separated, and carries out separately distributing rear recombinant.Such as US Patent No. 5415195, US6250131, Chinese patent CN101402004A, CN102536182A.US Patent No. 5415195 describes a kind of Splitigator distributor, its structure is simple, the phase separation principle of threeway is utilized to converge output again after gas-liquid separation, shortcoming is that its way outlet mass dryness fraction cannot regulate, be a fixed value, another shortcoming is that it cannot distribute incoming flow two-phase fluid completely, that is in order to reach its such distribution effects, main road incoming flow must have residual flow after dispensing, and allocative efficiency is restricted.US Patent No. 6250131 and Chinese patent CN101402004A mainly utilize pipeline and gravity that incoming flow two-phase fluid is first divided into single-phase or near single phase fluid, mass dryness fraction distribution such as reaching is converged again after respective distribution, but its shortcoming has: along with the flow of fluid in incoming flow and the increase of flow velocity, especially when main road pipe incoming flow flow pattern is annular flow, gas phase velocity is very large, the ability of its carrying of liquids is strengthened greatly, simultaneously the speed of liquid phase and momentum also very large, liquid phase is made to become not malleable flow direction, fluid is through down-comer time, liquid phase is difficult to enter down-comer completely, simple gravity and the down-comer of leaning on is difficult to gas phase and liquid phase are separated completely, a large amount of liquid phases can be carried in gas phase pipeline, thus the mass dryness fraction distribution effects such as to have impact on, accommodation is narrower, be very limited in actual field uses.Chinese patent CN102536182A passes through dilatation, two-phase incoming flow is all introduced in bulk container utilizes gravity to make gas phase and liquid phase natural separation, then gas phase and liquid phase are distributed the mass dryness fractions such as rear recombinant reaches separately and are distributed object, but its shortcoming is also obvious, whole incoming flow is separated in dilatation tank, and dilatation tank volume is inevitable very large, and equipment is heavy and material consumption is more, for the two-phase fluid of high temperature and high pressure steam and water, equipment volume is larger also just adds its dangerous hidden danger.
Summary of the invention
For the above deficiency that prior art exists, the object of the present invention is to provide mass dryness fraction distributor and the methods such as a kind of novel gas-liquid two-phase fluid.The present invention mainly utilizes swirl-flow devices and light-wall pipe that two-phase incoming flow is divided into two parts, a part is monophasic fluid and single phase gas or single-phase liquid, another part most part liquid that relatively should be in incoming flow is attended by most gas in sub-fraction residual gas or incoming flow and is attended by sub-fraction remaining liq, front portion directly enters gas collection case or liquid collection case, rear portion enters gas-liquid separation pipe, gas collection case and liquid collection case is imported respectively after gas phase and liquid phase separation in gas-liquid separation pipe, gas phase and liquid phase converge output after distributing separately in gas collection case and liquid collection case again, the object that mass dryness fraction is distributed such as to reach.
In order to realize foregoing invention object, the technical scheme that the present invention takes is:
The mass dryness fraction distributors such as a kind of novel gas-liquid two-phase fluid, comprise main road pipe 1, also comprise the gas-liquid separation pipe 2 with main road pipe 1 communicating downstream, by the liquid collection case 3 that the drop down hole 19 bottom gas-liquid separation pipe 2 or export pipeline 5 are communicated with gas-liquid separator tube 2, by export pipeline 5, the 28 gas collection casees 6 be communicated with gas-liquid separator tube 2, the multiple liquid phase branch road 4 of described liquid collection case 3 extraction symmetrically, the multiple gas phase branch road 7 of gas collection case 6 extraction symmetrically, the liquid phase branch road 4 of gas phase branch road 7 and its correspondence is on same perpendicular, and be communicated with efferent duct 9 by converging threeway 8, level height and the main road pipe 1 of described efferent duct 9 are consistent, at described main road pipe 1 and gas-liquid separator tube 2, inner or gas-liquid separation pipe 2 inside is provided with light-wall pipe 16, described main road pipe 1 in light-wall pipe 16 in or in light-wall pipe 16 or in main line 1, swirl-flow devices 15 is installed.
Described gas-liquid separation pipe 2 is arranged horizontally or vertically arranges perpendicular to main road pipe 1, when gas-liquid separation pipe 2 is horizontally disposed, the light-wall pipe 16 with gas-liquid separator tube 2 equal length is coaxially installed with in gas-liquid separation pipe 2, in light-wall pipe 16, interval predeterminable range is provided with swirl-flow devices 15, the light-wall pipe 16 sections that swirl-flow devices 15 is not set has circular aperture 18, and gas-liquid separation pipe 2 comprises two kinds of structures, one is provided with dividing plate 17 every predeterminable range in gas-liquid separation pipe 2, the two ends of dividing plate 17 are separately fixed on the tube wall of gas-liquid separation pipe 2 and the tube wall of light-wall pipe 16, and dividing plate 17 be arranged on light-wall pipe 16 does not have circular aperture 18 pipeline section in, each cavity bottom be made up of gas-liquid separation pipe 2 tube wall and dividing plate 17 has drop down hole 19, by drop down hole 19, each chamber is communicated with liquid collection case 3, another kind non-inductive windings 17 in gas-liquid separation pipe 2, whole gas-liquid separation pipe 2 inside forms a large chamber, has drop down hole 19, by drop down hole 19, chamber is communicated with liquid collection case 3 bottom gas-liquid separation pipe 2, when gas-liquid separation pipe 2 is vertically arranged, porous plate 26 is installed at an upper portion thereof, gas discharge hole 27 is arranged at top, drop down hole 19 or liquid discharge orifice 219 are arranged at bottom, described light-wall pipe 16 has two kinds of structures, in a kind of light-wall pipe 16, swirl-flow devices 15 is not installed, light-wall pipe 16 is not furnished with circular aperture 18, its external diameter is less than the internal diameter of main road pipe 1, one end of light-wall pipe 16 coaxially to be inserted in main road pipe 1 and is positioned at the swirl-flow devices downstream of main road pipe 1 final stage, and the other end runs through gas-liquid separation pipe 2 and is connected with export pipeline 5, another kind of light-wall pipe 16, its external diameter is less than the internal diameter of main road pipe 1, non-opened round aperture 18 on light-wall pipe 16, one end of light-wall pipe 16 coaxially to be inserted in main road pipe 1 and is positioned at the swirl-flow devices downstream of main road pipe 1 final stage, the other end passes in gas-liquid separation pipe 2,, the part that light-wall pipe 16 is arranged in gas-liquid separation pipe 2 is provided with swirl-flow devices 15 at light-wall pipe 16, and swirl-flow devices 15 downstream is connected with trumpet-shaped diffuser 30 or perforated pipe section.
When described gas-liquid separation pipe 2 is arranged horizontally, described light-wall pipe 16 tube wall is divided into two kinds, and one is that wall is smooth, and another kind is provided with tube wall projection 25 inside tube wall, between circular aperture 18.
Described tube wall projection 25 for cross section be annulus or the arc section of inverted L shape, it highly depends on the size of incoming flow liquid phase flow.
The mass dryness fraction distributor streamwise such as described is provided with 2 ~ 3 grades of swirl-flow devices 15, and the rotational flow capacity being positioned at the swirl-flow devices in downstream is not less than the rotational flow capacity of the swirl-flow devices of adjacent upstream.
The diameter being positioned at the drop down hole 19 of downstream chamber is not more than the diameter of the drop down hole 19 of adjacent upstream chamber.
The following current before converging threeway 8 of described liquid phase branch road 4 is furnished with fluid flowmeter 21 and liquid phase branch road valve 22 successively.
The following current before converging threeway 8 of described gas phase branch road 7 is furnished with gas flowmeter 23 and gas phase bypass valve door 24 successively.
The distribution method of the mass dryness fraction distributors such as novel gas-liquid two-phase fluid described above, the main road pipe 1 of the mass dryness fraction distributors such as gas-liquid two-phase fluid is connected with needing the incoming flow pipe of distributing, in the downstream of main road pipe 1,2 ~ 3 grades of swirl-flow devices 15 are installed, the swirl-flow devices 15 that main road gas-liquid two-phase fluid is installed through downstream, fluid is subject to centrifugal force, gas is assembled to pipeline center, liquid is attached at tube wall, utilize light-wall pipe 16 that incoming flow is divided into two parts, a part is monophasic fluid and single phase gas or single-phase liquid, another part most part liquid that relatively should be in incoming flow is attended by most gas in sub-fraction residual gas or incoming flow and is attended by sub-fraction remaining liq, front portion directly enters gas collection case 6 or liquid collection case 3, rear portion enters gas-liquid separation pipe 2, gas collection case 6 and liquid collection case 3 is imported respectively after gas phase and liquid phase separation in gas-liquid separation pipe 2, gas phase and liquid phase first each comfortable gas collection case 6 and liquid collection case 3 carry out branch road distribution, then gas phase and liquid phase branch road converge output again, the mass dryness fraction obtaining each efferent duct is consistent with main road, achieve gas-liquid two-phase fluid etc. mass dryness fraction distribute.
When described gas-liquid separation pipe 2 is arranged horizontally, swirl-flow devices 15 is arranged in light-wall pipe 16, and when described gas-liquid separation pipe 2 is for vertically arranging, swirl-flow devices 15 is arranged in main line (1) or is arranged on respectively in main road pipe 1 and light-wall pipe 16.
The cross section of described gas-liquid separation pipe 2 is circular or rectangle.
The wall thickness of described light-wall pipe 16 is 2 ~ 12mm.
The aperture of described circular aperture 18 is not less than 3mm, and percent opening is 0.1 ~ 0.8.
The aperture of described porous plate 26 is not less than 1mm, and percent opening is 0.2 ~ 0.8.
Described swirl-flow devices 15 downstream is connected with the pipeline section in a length of tape hole, and its aperture is not less than 3mm, and percent opening is 0.2 ~ 0.8.
Compared to the prior art, tool has the following advantages in the present invention:
1, the present invention is divided into two parts incoming flow, only needs a part to be wherein separated, effectively reduces the volume of separation equipment, improve separative efficiency, decrease the consumption of material.
2, utilize swirl-flow devices and light-wall pipe simultaneously, adopt the method for forced flow, and not merely rely on gravity to make fluid natural separation, effectively increase the scope of application to incoming flow two-phase fluid flow pattern, under two phase flow incoming flow flow pattern is stratified flow, wavy stratified flow patterns, semicircular stream, annular flow and slug flow situation, desirable distribution effects can be obtained.
3, distributor of the present invention and method are widely used in the gas-liquid two-phase fluid distribution of various medium, such as, and steam and water, air and water, refrigeration working medium etc.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure diagram of example 1 of the present invention.
Fig. 2-a is the internal structure view of example 1 gas-liquid separation pipe (light-wall pipe of inner wall smooth) of the present invention.
Fig. 2-b is the internal structure view of example 1 gas-liquid separation pipe (the rough light-wall pipe of inwall) of the present invention.
Fig. 3 is the three-dimensional structure diagram of example 2 of the present invention.
Fig. 4-a is example 2 gas-liquid separation pipe (light-wall pipe of inner wall smooth) internal structure view of the present invention.
Fig. 4-b is the internal structure view of example 2 gas-liquid separation pipe (the rough light-wall pipe of inwall) of the present invention.
Fig. 5 is the three-dimensional structure diagram of example 3 of the present invention.
Fig. 6 is example 3 gas-liquid separation pipe internal structure view of the present invention.
Fig. 7 is the three-dimensional structure diagram of example 4 of the present invention.
Fig. 8 is example 4 gas-liquid separation pipe internal structure view of the present invention.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As shown in drawings, the mass dryness fraction distributors such as novel gas-liquid two-phase fluid of the present invention, primarily of swirl-flow devices 15, light-wall pipe 16, gas-liquid separation pipe 2, gas collection case 6, liquid collection case 3 and distribution branch road composition, main road pipe 1 is connected with gas-liquid separation pipe 2, by swirl-flow devices 15, incoming flow is become uniform annular flow, utilize light-wall pipe 16 that incoming flow is divided into two parts, a part is monophasic fluid and single phase gas or single-phase liquid, another part most part liquid that relatively should be in incoming flow is attended by most gas in sub-fraction residual gas or incoming flow and is attended by sub-fraction remaining liq, front portion directly enters gas collection case 6 or liquid collection case 3, rear portion enters gas-liquid separation pipe 2, gas collection case 6 and liquid collection case 3 is imported respectively after gas phase and liquid phase separation in gas-liquid separation pipe 2, gas phase and each comfortable gas collection case 6 of liquid phase and liquid collection case 3 carry out branch road distribution, gas phase branch road 7 is connected with efferent duct 9 after converging threeway 8 with liquid phase branch road 4, the mass dryness fraction obtaining each efferent duct is consistent with main road, reach the object that the mass dryness fractions such as gas-liquid two-phase fluid are distributed.
Embodiment one
As Fig. 1, Fig. 2-a and Fig. 2-b is depicted as first embodiment of the present invention, this device comprises main road pipe 1, with the gas-liquid separation pipe 2 of main road pipe 1 communicating downstream, by the liquid collection case 3 that the drop down hole 19 bottom gas-liquid separation pipe 2 is communicated with gas-liquid separator tube 2, by the gas collection case 6 that export pipeline 5 is communicated with gas-liquid separator tube 2, the multiple liquid phase branch road 4 of liquid collection case 3 extraction symmetrically, the multiple gas phase branch road 7 of gas collection case 6 extraction symmetrically, the liquid phase branch road 4 of gas phase branch road 7 and its correspondence is on same perpendicular, and be communicated with efferent duct 9 by converging threeway 8. level height and the main road pipe 1 of described efferent duct 9 are consistent, described gas-liquid separation pipe 2 is connected to the downstream of main road pipe 1 and horizontally disposed, be coaxially installed with the light-wall pipe 16 with gas-liquid separation pipe equal length therein, in light-wall pipe 16, interval predeterminable range is provided with three swirler device 15, and the rotational flow capacity being positioned at the swirl-flow devices in downstream is not less than the rotational flow capacity of the swirl-flow devices of adjacent upstream, the light-wall pipe 16 sections that swirl-flow devices 15 is not set has circular aperture 18, in gas-liquid separation pipe 2, predeterminable range is provided with dividing plate 17, the two ends of dividing plate 17 are separately fixed on the tube wall of gas-liquid separation pipe 2 and the tube wall of light-wall pipe 16, and dividing plate 17 be arranged on light-wall pipe 16 does not have circular aperture 18 pipeline section in, each cavity bottom be made up of gas-liquid separation pipe 2 tube wall and dividing plate 17 has drop down hole 19, and the diameter being positioned at the drop down hole of downstream chamber is not more than the diameter of the drop down hole of adjacent upstream chamber, by drop down hole 19, each chamber is communicated with liquid collection case 3, the following current before converging threeway 8 of described liquid phase branch road 4 is furnished with fluid flowmeter 21 and liquid phase branch road valve 22 successively, the following current before converging threeway 8 of described gas phase branch road 7 is furnished with gas flowmeter 23 and gas phase bypass valve door 24 successively, the flow pattern of main road biphase gas and liquid flow incoming flow comprises stratified flow, wavy stratified flow patterns, semicircular stream, annular flow and slug flow, after two phase flow flows through downstream swirl-flow devices 15, fluid is subject to centrifugal action, flow pattern becomes uniform annular flow, namely gas is assembled to the center of pipeline, liquid is attached at the tube wall of light-wall pipe 16, when flowing through porous section, the liquid of light-wall pipe 16 near-wall can enter in corresponding chamber by circular aperture 18, the light-wall pipe of inner wall smooth can be selected when low flow velocity incoming flow, see Fig. 2-a, tube wall can be selected when high flow rate incoming flow with the light-wall pipe of tube wall projection 25, such as the present embodiment, tube wall projection 25 for cross section be annulus or the arc section of inverted L shape, see Fig. 2-b, the liquid being conducive to near-wall attachment like this enters in gas-liquid separation pipe 2 completely, after flowing reaches poised state, because the gaseous pressure in chamber is a little more than the gaseous pressure in light-wall pipe, therefore gas phase can not enter in chamber, therefore a needs is separated already present gas in the liquid and chamber entering chamber in the chamber of gas-liquid separation pipe 2, enter liquid in chamber due to dilatation, its flow velocity can reduce rapidly and collect to bottom under gravity, liquid collection case 3 is entered by drop down hole 19, incoming flow sequentially through the swirl-flow devices in downstream and light-wall pipe process with holes with said process in like manner, after three times as above process, the gas of minute quantity fine drop is mainly carried in the export pipeline 5 of gas-liquid separation pipe, by document Bingdong Zhang et al.(2013) (Equal quality distribution of gas-liquid two-phase flowby partial separation method, International Journal of Multiphase Flow) known, containing a small amount of liquid in gas, the uniformity that it distributes can't be affected, and gas conversion flow velocity is larger, under the condition not affecting distributing uniformity, gas can carry the upper limit of liquid measure can be larger, the gas of gas-liquid separation pipe outlet distributes and enters gas phase branch road 7 in gas collection case 6, liquid phase is distributed and is entered liquid phase branch road 4 in liquid collection case 3, gas phase branch road 7 is connected with efferent duct 9 through converging threeway 8 with liquid phase branch road 4, the mass dryness fraction of efferent duct 9 is consistent with the mass dryness fraction of main road pipe 1, the object that mass dryness fraction is distributed such as to reach, regulate corresponding gas phase branch road valve 24 by the observation of the vapor phase stream gauge 23 on each branch road and liquid phase stream gauge 21 simultaneously, liquid phase branch road valve 22, each efferent duct 9 can export the two-phase fluid of certain mass dryness fraction.
Embodiment two
As Fig. 3, Fig. 4-a and Fig. 4-b is depicted as second embodiment of the present invention, this device comprises main road pipe 1, with the gas-liquid separation pipe 2 of main road pipe 1 communicating downstream, by the liquid collection case 3 that the drop down hole 19 bottom gas-liquid separation pipe 2 is communicated with gas-liquid separator tube 2, by the gas collection case 6 that export pipeline 5 is communicated with gas-liquid separator tube 2, the multiple liquid phase branch road 4 of liquid collection case 3 extraction symmetrically, the multiple gas phase branch road 7 of gas collection case 6 extraction symmetrically, the liquid phase branch road 4 of gas phase branch road 7 and its correspondence is on same perpendicular, and be communicated with efferent duct 9 by converging threeway 8, level height and the main road pipe 1 of described efferent duct 9 are consistent, described gas-liquid separation pipe 2 is connected to the downstream of main road pipe 1 and horizontally disposed, be coaxially installed with the light-wall pipe 16 with gas-liquid separation pipe equal length therein, in light-wall pipe 16, interval predeterminable range is provided with two-stage swirl-flow devices 15, and the rotational flow capacity being positioned at the swirl-flow devices in downstream is not less than the rotational flow capacity of the swirl-flow devices of adjacent upstream, the light-wall pipe 16 sections that swirl-flow devices 15 is not set has circular aperture 18, non-inductive windings 17 in gas-liquid separation pipe 2, whole gas-liquid separation pipe 2 inside forms a large chamber, drop down hole 19 is had bottom gas-liquid separation pipe 2, by drop down hole 19, chamber is communicated with liquid collection case 3, the following current before converging threeway 8 of described liquid phase branch road 4 is furnished with fluid flowmeter 21 and liquid phase branch road valve 22 successively, the following current before converging threeway 8 of described gas phase branch road 7 is furnished with gas flowmeter 23 and gas phase bypass valve door 24 successively, the flow pattern of main road biphase gas and liquid flow incoming flow comprises stratified flow, wavy stratified flow patterns, semicircular stream, annular flow and slug flow, after two phase flow flows through the swirl-flow devices 15 installed in downstream, fluid is subject to centrifugal action, flow pattern becomes uniform annular flow, namely gas is assembled to the center of pipeline, liquid is attached at the tube wall of light-wall pipe 16, when flowing through porous section, the liquid of light-wall pipe 16 near-wall can enter in gas-liquid separation pipe 2 by circular aperture 18, the light-wall pipe of inner wall smooth can be selected when low flow velocity incoming flow, see Fig. 4-a, tube wall can be selected when high flow rate incoming flow with the light-wall pipe of tube wall projection 25, such as the present embodiment, tube wall projection 25 for cross section be annulus or the arc section of inverted L shape, see Fig. 4-b, the liquid being conducive to near-wall attachment like this enters in gas-liquid separation pipe 2 completely, after flowing reaches poised state, because the pressure of gas phase in gas-liquid separation pipe 2 is a little more than the pressure of gas phase in light-wall pipe, therefore gas phase can not enter in gas-liquid separation pipe 2, therefore a needs is separated already present gas in the liquid and gas-liquid separator tube entering gas-liquid separation pipe in gas-liquid separation pipe 2, enter the liquid of gas-liquid separation pipe 2 due to dilatation, its flow velocity can reduce rapidly and collect downwards under gravity, liquid collection case 3 is entered by drop down hole 19, for carrying the gas of minute quantity fine drop in the export pipeline 5 of gas-liquid separation pipe 2, from document Bingdong Zhang et al.(2013), containing a small amount of liquid in gas, the uniformity that it distributes can't be affected, and gas conversion flow velocity is larger, under the condition not affecting distributing uniformity, gas can carry the upper limit of liquid measure can be larger, the gas of gas-liquid separation pipe outlet distributes and enters each gas phase branch road 7 in gas phase collecting box 6, liquid phase is distributed and is entered each liquid phase branch road 4 in liquid collection case 3, gas phase branch road 7 is connected with efferent duct 9 through converging threeway 8 with liquid phase branch road 4, the mass dryness fraction of efferent duct 9 is consistent with the mass dryness fraction of main road pipe 1, the object that mass dryness fraction is distributed such as to reach, gas phase branch road 7 and liquid phase branch road 4 are provided with vapor phase stream gauge 23 simultaneously, liquid phase stream gauge 21 and gas phase bypass valve door 24, liquid phase branch road valve 22, the gas-liquid two-phase fluid of certain mass dryness fraction can be exported by observation flowmeter and control valve.
Embodiment three
Be the 3rd embodiment of the present invention as shown in Figure 5 and Figure 6, the present embodiment is mainly for the larger situation of incoming flow mass dryness fraction, especially be suitable for mass dryness fraction and be greater than 0.9, this device comprises main road pipe 1, with the gas-liquid separation pipe 2 of main road pipe 1 communicating downstream, by the liquid collection case 3 that the drop down hole 19 bottom gas-liquid separation pipe 2 is communicated with gas-liquid separator tube 2, by export pipeline 5, the 28 gas collection casees 6 be communicated with gas-liquid separator tube 2, the multiple liquid phase branch road 4 of liquid collection case 3 extraction symmetrically, the multiple gas phase branch road 7 of gas collection case 6 extraction symmetrically, the liquid phase branch road 4 of gas phase branch road 7 and its correspondence is on same perpendicular, and be communicated with efferent duct 9 by converging threeway 8, level height and the main road pipe 1 of described efferent duct 9 are consistent, in described main road pipe 1, interval predeterminable range is provided with two-stage swirl-flow devices 15, described gas-liquid separation pipe 2 is connected to the downstream of main road pipe 1 and vertically arranges perpendicular to main road pipe 1, porous plate 26 is installed at an upper portion thereof, gas discharge hole 27 is arranged at top, and drop down hole 19 is arranged at bottom, by drop down hole 19, gas-liquid separation pipe is communicated with liquid collection case 3, in described light-wall pipe 16, swirl-flow devices 15 is not installed, light-wall pipe 16 wall is smooth and tube wall is not furnished with circular aperture 18, its external diameter is less than the internal diameter of main road pipe 1, one end of light-wall pipe 16 coaxially to be inserted in main road pipe 1 and is positioned at the swirl-flow devices downstream of main road pipe 1 final stage, and the other end runs through gas-liquid separation pipe 2 and is connected with export pipeline 5, the following current before converging threeway 8 of described liquid phase branch road 4 is furnished with fluid flowmeter 21 and liquid phase branch road valve 22 successively, the following current before converging threeway 8 of described gas phase branch road 7 is furnished with gas flowmeter 23 and gas phase bypass valve door 24 successively, the flow pattern of main road biphase gas and liquid flow incoming flow comprises stratified flow, wavy stratified flow patterns, semicircular stream, annular flow and slug flow, after two phase flow flows through downstream swirl-flow devices 15, fluid is subject to centrifugal action, flow pattern becomes uniform annular flow, namely gas is assembled to the center of pipeline, liquid is attached at the tube wall of main road pipe 1, two-stage swirl-flow devices 15 is had in incoming flow arranged downstream, multistage layout can reach the effect strengthening eddy flow, make to collect in the liquid phase ingredient carried in the gas at pipeline center and reach minimum, light-wall pipe 16 one end coaxially to be inserted in main road pipe 1 and is positioned at main road pipe 1 final stage swirl-flow devices downstream, the other end is connected with export pipeline 5 after running through gas-liquid separation pipe 2, light-wall pipe 16 does not have circular aperture, incoming flow in main road pipe 1 is divided into two parts, for carrying the gas of minute quantity fine drop in light-wall pipe, enter into gas collection case 6 by the outlet conduit 5 of light-wall pipe 16 and gas-liquid separator tube 2 and be dispensed to each gas phase branch road 7, be most part liquid and residual gas in two-phase incoming flow between light-wall pipe 16 and main road pipe 1, flow to gas-liquid separation pipe 2, enter the fluid of gas-liquid separation pipe 2 due to dilatation, its flow velocity can reduce rapidly and liquid collects to gas-liquid separation pipe 2 bottom under gravity, gas is assembled to gas-liquid separation pipe 2 top, liquid finally enters liquid collection case 3 by drop down hole 19, gas-liquid separation pipe 2 top is provided with porous plate 26, stop that the drop in gas-liquid separation pipe enters steam vent 27, gas in gas-liquid separation pipe can enter into gas collection case 6 by upper discharge hole 27 and export pipeline 28, gas distributes and enters each gas phase branch road 7 in gas phase collecting box 6, liquid phase is distributed and is entered each liquid phase branch road 4 in liquid collection case 3, gas phase branch road is communicated with efferent duct 9 through converging threeway 8 with liquid phase branch road, the mass dryness fraction of efferent duct 9 is consistent with the mass dryness fraction of main road pipe 1, the object that mass dryness fraction is distributed such as to reach, gas phase branch road and liquid phase branch road are provided with vapor phase stream gauge 23 simultaneously, liquid phase stream gauge 21 and gas phase bypass valve door 24, liquid phase branch road valve 22, the gas-liquid two-phase fluid of certain mass dryness fraction can be exported by observation flowmeter and control valve.
Embodiment four
Be the 4th embodiment of the present invention as shown in Figure 7 and Figure 8, the present embodiment is mainly for the very little situation of incoming flow mass dryness fraction, especially be suitable for mass dryness fraction and be less than 0.3, this device comprises main road pipe 1, with the gas-liquid separation pipe 2 of main road pipe 1 communicating downstream, by the liquid collection case 3 that export pipeline 5 is communicated with gas-liquid separator tube 2, by the gas collection case 6 that export pipeline 28 is communicated with gas-liquid separator tube 2, the multiple liquid phase branch road 4 of liquid collection case 3 extraction symmetrically, the multiple gas phase branch road 7 of gas collection case 6 extraction symmetrically, the liquid phase branch road 4 of gas phase branch road 7 and its correspondence is on same perpendicular, and be communicated with efferent duct 9 by converging threeway 8, level height and the main road pipe 1 of described efferent duct 9 are consistent, in described main road pipe 1, interval predeterminable range is provided with two-stage swirl-flow devices 15, described gas-liquid separation pipe 2 is connected to the downstream of main road pipe 1 and vertically arranges perpendicular to main road pipe 1, be provided with porous plate 26 at an upper portion thereof, gas discharge hole 27 is arranged at top, and liquid discharge orifice 219 is arranged at bottom, be provided with connecting line 29 bottom gas-liquid separation pipe 2, connecting line 29 is communicated with export pipeline 5, described light-wall pipe 16 external diameter is less than the internal diameter of main road pipe 1 and non-opened round aperture, one end of light-wall pipe 16 coaxially to be inserted in main road pipe 1 and is positioned at the swirl-flow devices downstream of main road pipe 1 final stage, the other end passes in gas-liquid separation pipe 2, part that light-wall pipe 16 is arranged in gas-liquid separation pipe 2 is provided with swirl-flow devices 15 at light-wall pipe 16, and swirl-flow devices 15 downstream is connected with trumpet-shaped diffuser 30, the following current before converging threeway 8 of described liquid phase branch road 4 is furnished with fluid flowmeter 21 and liquid phase branch road valve 22 successively, the following current before converging threeway 8 of described gas phase branch road 7 is furnished with gas flowmeter 23 and gas phase bypass valve door 24 successively, the flow pattern of main road biphase gas and liquid flow incoming flow comprises stratified flow, wavy stratified flow patterns, semicircular stream, annular flow and slug flow, after two phase flow flows through downstream swirl-flow devices 15, fluid is subject to centrifugal action, flow pattern becomes uniform annular flow, namely gas is assembled to the center of pipeline, in pipeline, remaining space is liquid, two-stage swirl-flow devices 15 is furnished with in main road pipe 1, multistage layout can reach the effect strengthening eddy flow, make to collect in the liquid phase ingredient carried in the gas at pipeline center and reach minimum, and gas phase composition contained in liquid phase reaches minimum, light-wall pipe 16 one end is coaxially inserted in main road pipe 1, the other end is directly communicated to the inside of gas-liquid separation pipe 2, light-wall pipe 16 is divided into two parts the two-phase incoming flow in main road pipe 1, be single-phase liquid or the liquid containing minute quantity tiny bubble between light-wall pipe 16 and main road pipe 1, directly by export pipeline 5 influent collecting box 3, be gas and the remaining liq of the overwhelming majority in two-phase incoming flow in light-wall pipe, gas-liquid separation pipe 2 is entered by light-wall pipe 16, when two-phase fluid flows through the light-wall pipe of gas-liquid separation pipe 2 inside, the swirl-flow devices 15 successively installed in light-wall pipe and the trumpet-shaped diffuser 30(of afterbody or perforated pipe section), gas moves upward due to inertia and collects at top, liquid is after outflow light-wall pipe, owing to being subject to the effect of inertia flowing through light-wall pipe inward eddy device 15 centrifugal force, tube wall to gas-liquid separation pipe 2 moves, liquid naturally falls to coming together in bottom gas-liquid separation pipe in the process of motion, gas-liquid separation pipe 2 top is provided with porous wall 26, reduce the drop carried in Exhaust Gas, gas is by the gas discharge hole 27 at top and export pipeline 28 inflow gas collecting box 6 and be dispensed to each gas phase branch road 7, liquid bottom gas-liquid separation pipe 2 is converged by liquid discharge orifice 219 and connecting line 29 with export pipeline 5 and enters into liquid collection case 3 and is dispensed to each liquid phase branch road 4, liquid phase branch road 4 is connected with efferent duct 9 through converging threeway 8 with gas phase branch road 7, the mass dryness fraction of efferent duct 9 is consistent with the mass dryness fraction of main road pipe 1, the object that mass dryness fraction is distributed such as to reach, liquid phase branch road and gas phase branch road are provided with liquid phase stream gauge 21, vapor phase stream gauge 23 and liquid phase branch road valve 22, gas phase branch road valve 24 simultaneously, can be exported the gas-liquid two-phase fluid of certain mass dryness fraction by observation flowmeter and control valve.
Claims (7)
1. the mass dryness fraction distributor such as novel gas-liquid two-phase fluid, comprise main road pipe (1), it is characterized in that: also comprise the gas-liquid separation pipe (2) with main road pipe (1) communicating downstream, by the liquid collection case (3) that drop down hole (19) or the export pipeline (5) of gas-liquid separation pipe (2) bottom are communicated with gas-liquid separator tube (2), by export pipeline (5, 28) the gas collection case (6) be communicated with gas-liquid separator tube (2), the multiple liquid phase branch road (4) of described liquid collection case (3) extraction symmetrically, the multiple gas phase branch road (7) of gas collection case (6) extraction symmetrically, the liquid phase branch road (4) of gas phase branch road (7) and its correspondence is on same perpendicular, and be communicated with efferent duct (9) by converging threeway (8), level height and the main road pipe (1) of described efferent duct (9) are consistent, at described main road pipe (1) and gas-liquid separator tube (2), inner or gas-liquid separation pipe (2) inside is provided with light-wall pipe (16), described main road pipe (1) in light-wall pipe (16) in or in light-wall pipe (16) or in main road pipe (1), swirl-flow devices (15) is installed,
Described gas-liquid separation pipe (2) is arranged horizontally or vertically arranges perpendicular to main road pipe (1), when gas-liquid separation pipe (2) is horizontally disposed, the light-wall pipe (16) with gas-liquid separator tube (2) equal length is coaxially installed with in gas-liquid separation pipe (2), in light-wall pipe (16), interval predeterminable range is provided with swirl-flow devices (15), light-wall pipe (16) section that swirl-flow devices (15) are not set has circular aperture (18), and gas-liquid separation pipe (2) comprises two kinds of structures, one is provided with dividing plate (17) every predeterminable range in gas-liquid separation pipe (2), the two ends of dividing plate (17) are separately fixed on the tube wall of gas-liquid separation pipe (2) and the tube wall of light-wall pipe (16), and dividing plate (17) is arranged on light-wall pipe (16) and does not have in the pipeline section of circular aperture (18), each cavity bottom be made up of gas-liquid separation pipe (2) tube wall and dividing plate (17) has drop down hole (19), by drop down hole (19), each chamber is communicated with liquid collection case (3), another kind of at the middle non-inductive windings (17) of gas-liquid separation pipe (2), whole gas-liquid separation pipe (2) inside forms a large chamber, have drop down hole (19) in gas-liquid separation pipe (2) bottom, by drop down hole (19), chamber is communicated with liquid collection case (3), when gas-liquid separation pipe (2) is vertically arranged, porous plate (26) is installed at an upper portion thereof, gas discharge hole (27) is arranged at top, drop down hole (19) or liquid discharge orifice (219) are arranged at bottom, described light-wall pipe (16) has two kinds of structures, in a kind of light-wall pipe (16), swirl-flow devices (15) is not installed, light-wall pipe (16) is not furnished with circular aperture (18), its external diameter is less than the internal diameter of main road pipe (1), one end of light-wall pipe (16) coaxially to be inserted in main road pipe (1) and is positioned at the swirl-flow devices downstream of main road pipe (1) final stage, the other end runs through gas-liquid separation pipe (2) and is connected with export pipeline (5), another kind of light-wall pipe (16), its external diameter is less than the internal diameter of main road pipe (1), non-opened round aperture (18) on light-wall pipe (16), one end of light-wall pipe (16) coaxially to be inserted in main road pipe (1) and is positioned at the swirl-flow devices downstream of main road pipe (1) final stage, the other end passes in gas-liquid separation pipe (2), the part that light-wall pipe (16) is arranged in gas-liquid separation pipe (2) is provided with swirl-flow devices (15) at light-wall pipe (16), and swirl-flow devices (15) downstream is connected with trumpet-shaped diffuser (30) or perforated pipe section,
When described gas-liquid separation pipe (2) is arranged horizontally, described light-wall pipe (16) tube wall is divided into two kinds, one is that wall is smooth, and another kind is provided with tube wall projection (25) inside tube wall, between circular aperture (18);
Described tube wall projection (25) for cross section be annulus or the arc section of inverted L shape, it highly depends on the size of incoming flow liquid phase flow.
2. the mass dryness fraction distributor such as a kind of novel gas-liquid two-phase fluid according to claim 1, it is characterized in that: the mass dryness fraction distributor streamwise such as described is provided with 2 ~ 3 grades of swirl-flow devices (15), and the rotational flow capacity being positioned at the swirl-flow devices in downstream is not less than the rotational flow capacity of the swirl-flow devices of adjacent upstream.
3. the mass dryness fraction distributor such as a kind of novel gas-liquid two-phase fluid according to claim 1, is characterized in that: the diameter being positioned at the drop down hole (19) of downstream chamber is not more than the diameter of the drop down hole (19) of adjacent upstream chamber.
4. the mass dryness fraction distributor such as a kind of novel gas-liquid two-phase fluid according to claim 1, is characterized in that: described liquid phase branch road (4) is furnished with fluid flowmeter (21) and liquid phase branch road valve (22) successively converging threeway (8) front following current.
5. the mass dryness fraction distributor such as a kind of novel gas-liquid two-phase fluid according to claim 1, is characterized in that: described gas phase branch road (7) is furnished with gas flowmeter (23) and gas phase bypass valve door (24) successively converging threeway (8) front following current.
6. the distribution method of the mass dryness fraction distributors such as the novel gas-liquid two-phase fluid described in any one of claim 1 to 5, it is characterized in that: the incoming flow pipe that main road pipe (1) and the needs of the mass dryness fraction distributors such as gas-liquid two-phase fluid distribute is connected, in the downstream of main road pipe (1), 2 ~ 3 grades of swirl-flow devices (15) are installed, the swirl-flow devices (15) that main road gas-liquid two-phase fluid is installed through downstream, fluid is subject to centrifugal force, gas is assembled to pipeline center, liquid is attached at tube wall, utilize light-wall pipe (16) that incoming flow is divided into two parts, a part is monophasic fluid and single phase gas or single-phase liquid, another part most part liquid that relatively should be in incoming flow is attended by most gas in sub-fraction residual gas or incoming flow and is attended by sub-fraction remaining liq, front portion directly enters gas collection case (6) or liquid collection case (3), rear portion enters gas-liquid separation pipe (2), gas collection case (6) and liquid collection case (3) is imported respectively after gas phase and liquid phase separation in gas-liquid separation pipe (2), gas phase and liquid phase first each comfortable gas collection case (6) and liquid collection case (3) carry out branch road distribution, then gas phase and liquid phase branch road converge output again, the mass dryness fraction obtaining each efferent duct is consistent with main road, achieve gas-liquid two-phase fluid etc. mass dryness fraction distribute.
7. distribution method according to claim 6, it is characterized in that: when described gas-liquid separation pipe (2) is arranged horizontally, swirl-flow devices (15) is arranged in light-wall pipe (16), when described gas-liquid separation pipe (2) is for vertically arranging, swirl-flow devices (15) is arranged in main line (1) or is arranged on respectively in main road pipe (1) and light-wall pipe (16).
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| CN201410069704.4A CN103894004B (en) | 2014-02-28 | 2014-02-28 | Mass dryness fraction distributor and the methods such as a kind of novel gas-liquid two-phase fluid |
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| CN201410069704.4A CN103894004B (en) | 2014-02-28 | 2014-02-28 | Mass dryness fraction distributor and the methods such as a kind of novel gas-liquid two-phase fluid |
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| CN103894004B true CN103894004B (en) | 2015-08-05 |
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| CN105302948B (en) * | 2015-10-15 | 2019-03-05 | 广东电网有限责任公司电力科学研究院 | Monophasic fluid network modeling method |
| CN106989630B (en) * | 2017-03-16 | 2018-12-25 | 上海交通大学 | A kind of piping and the large-scale ice chest with the piping structure |
| EP3392855B1 (en) * | 2017-04-19 | 2021-10-13 | Siemens Schweiz AG | Method and device for configuring a smoke detector |
| CN108031148B (en) * | 2017-12-08 | 2019-11-05 | 中国科学院力学研究所 | A kind of gas-liquid separation device and application |
| CN108525170B (en) * | 2018-06-07 | 2024-02-02 | 明光浩淼安防科技股份公司 | Full-automatic proportional distribution liquid conveying device |
| CN108613159A (en) * | 2018-06-22 | 2018-10-02 | 华北电力大学 | A kind of intermediate header being suitable for super critical boiler underload flexibility operation |
| CN111729408A (en) * | 2020-04-16 | 2020-10-02 | 中国石油工程建设有限公司华北分公司 | Geothermal two-phase flow dryness control and phase state stabilization process equipment |
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| WO1999015862A1 (en) * | 1997-09-24 | 1999-04-01 | Lockheed Martin Idaho Technologies Company | Special configuration differential pressure flow meter |
| CN1085333C (en) * | 1998-12-30 | 2002-05-22 | 西安交通大学 | Divided-flow split-phase type two-phase fluid flow measuring method |
| US6250131B1 (en) * | 1999-09-10 | 2001-06-26 | Texaco Inc. | Apparatus and method for controlling and measuring steam quality |
| US7540902B2 (en) * | 2004-11-24 | 2009-06-02 | Shell Oil Company | Separator for multi-phase slug flow and method of designing same |
| CN100531849C (en) * | 2006-07-05 | 2009-08-26 | 富准精密工业(深圳)有限公司 | Method and device for separating gas and liquid |
| CN101402004B (en) * | 2008-10-30 | 2010-08-11 | 西安交通大学 | Gas-liquid diphasic fluid distributor |
| CN102489045B (en) * | 2011-12-02 | 2013-10-16 | 西安交通大学 | Gas-liquid two-phase self-adaption constant flow distributor |
| CN203308390U (en) * | 2013-06-27 | 2013-11-27 | 中国石油大学(华东) | Iso-dryness distribution tee joint |
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