CN102998343B - Two-phase flow tomography system based on array-type monopole conducting probe - Google Patents
Two-phase flow tomography system based on array-type monopole conducting probe Download PDFInfo
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- CN102998343B CN102998343B CN201210516028.1A CN201210516028A CN102998343B CN 102998343 B CN102998343 B CN 102998343B CN 201210516028 A CN201210516028 A CN 201210516028A CN 102998343 B CN102998343 B CN 102998343B
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Abstract
The invention discloses a two-phase flow tomography system based on an array-type monopole conducting probe. The system comprises a flow pipeline, the array-type monopole conducting probe, multi-channel collection equipment and an annular anode, wherein the array-type monopole conducting probe is fixedly mounted on the inner wall of the flow pipeline and comprises a plurality of detecting points and detecting point lead-out wires; each detecting point lead-out wire passes through the pipe wall of the flow pipeline, and is electrically connected with a lead wire terminal on the outer wall of the flow pipeline; the multi-channel collection equipment is connected with the lead wire terminal and is used for collecting a potential value of each detecting point; and the annular anode is mounted on the inner wall or at the interior of the flow pipeline, and is used for applying motivation to fluid. The two-phase flow tomography system provided by the invention adopts a simple and reliable principle, can effectively lower the uncertainty of fluid detection, can be used for monitoring and recording the phase volume fraction of a cross section further in real time, and can reach certain available precision.
Description
Technical field
The present invention relates to phase pipe flow flow pattern recognition technology field, be specifically related to a kind of two-phase flow chromatographic imaging system based on array type single electrode conductance probe.
Background technology
Diphasic flow phenomenon extensively exists in the modern project fields such as oil, chemical industry, and the rules such as the distribution of each phase in research two-phase flow, nowed forming have great importance for holding better other flow parameters.Use for reference the CT scan tomography technology of medical domain, wish to obtain the real-time fault information of mobile tomography, to obtain the three-dimensional space-time distributed intelligence of heterogeneous fluid.Two-phase/heterogeneous chromatography imaging technique arises at the historic moment.Chromatography imaging technique is applied to measuring two-phase flow parameter and verifies that for mechanism research and the numerical simulation of two-phase flow all tool is of great significance, and it has represented the future developing trend of current polyphasic flow parameter detecting technology.
Utilizing is the process tomographic imaging technology developing the earliest as the rays such as X-ray, gamma-rays carry out tomography.Ray can, because MEDIUM ABSORPTION AND SCATTERING decays, can obtain faultage image according to projection inverse transformation by measuring the amplitude of different directions decay again through measured section.This technology is that medicine CT technology is in the direct application in polyphasic flow parameter detecting field.In actual use, its most obvious shortcoming is exactly that real-time is poor, in addition, uses the cost of ray higher, and security also cannot be protected.
Capacitive process tomography is also a kind of process tomographic imaging technology that early begins one's study and apply, its measuring principle is that the different component of heterogeneous fluid mobile in pipeline has different specific inductive capacity, utilizes the electric capacity being arranged between the electrode pair on duct wall to carry out imaging.Such as the capacitance measuring in Chinese patent of invention ZL01112515.2 is relevant with the distribution mutually in whole cross section, this " soft " character makes only to rely on capacitance to carry out image reconstruction and becomes very complicated, and adopt complicated iterative algorithm can expend a large amount of time, just can be finally inversed by cross-sectional image.Owing to depending on capacitance measurement, sensors with auxiliary electrode were is very responsive for fluid specific inductive capacity, and Chang Yinwei fluid contains conductive impurity and changes specific inductive capacity, makes reconstructed image occur inevitable error, and be difficult to revise, affect image quality and final measurement result.
A kind of capacitive transducer has been described in Chinese invention patent CN1595132A, for two-phase flow tomography, by measuring the capacitance variations of the insulated conductor of parallel placement, solve insulating medium at the projected image of wire direction, by electronic rotation or spin device, drive silk screen to rotate, thereby can obtain the projection information in some directions, further by projection inverse transformation, obtain flow field figure picture.An open defect of this method is, there is impact in the rotation stream field of sensor self itself, the distribution of the whole flow pattern of sensor rotation too fast meeting disturbance, if sensor rotation is excessively slow, the projection information of all directions just can not meet the condition of taking from synchronization same position, and projection inverse transformation is not just known where to begin yet.And this method is very responsive for the specific inductive capacity of medium, component slightly changes, and just may bring measuring error.
US Patent No. 6314373 has proposed a kind of Novel electric and has led chromatography imaging method, its sensing unit is two-layer stainless steel electrode parallel to each other, electrode integral is exposed, by measuring the electricity of point of crossing between horizontal electrode and vertical electrode, leads, and judges the local phase distribution at intersection point place.The distinct disadvantage of this method is exactly to have ignored the impact that intersection point exposed part is in addition led measured electricity.And for the higher liquid of resistivity, this shortcoming can have a strong impact on the precision of measurement.Therefore this method is very harsh for the requirement of liquid environment, application difficult.
And the method for applying the dispersion phase content in single probe in detecting two-phase has a lot of application, technology is also comparatively ripe.Yet seen application is all for spot measurement conventionally, can only changes and roughly estimate water percentage according to signal frequency, judgement flow pattern.The bipolar impedance probe of tradition is surveyed the resistivity of the channel interior partial points that flows by the two poles of the earth of being mutually close to again insulated from each other, because electrode size is small, electrolytic reaction makes anode be easy to be corroded, and durability is not good.
Summary of the invention
The object of the invention is to, the defect and the deficiency that for above-mentioned prior art, exist, improve traditional simple root bipolar electrode probe and combine with chromatography imaging method proposing a kind of system that flow pattern is measured in the past that is different from, can realize online measurement profit/air water phase pipe flow cross-sectional image (tomography) in real time and can carry out water percentage more accurately and calculate.
The present invention proposes a kind of two phase flow pattern detection system based on array type single negative electrode conducting probe, and this system comprises:
Flow duct 1, flows therein for offering the two-phase fluid that resistivity contrasts is very large;
Array type single negative electrode conducting probe 4, be fixedly installed on the inwall of described flow duct 1, comprise and be a plurality of check points and the check point extension line that space array is arranged, each check point only has a utmost point, as negative electrode, each check point extension line is electrically connected through the tube wall of described flow duct 1 and the lead terminal of described flow duct 1 outer wall;
Described multichannel collecting equipment 2 is connected with the lead terminal of described flow duct 1 outer wall, for gathering the potential value of each check point, and the potentiometric detection result for whole check points is each time compressed;
Described circular anode 5 is installed on inner-walls of duct or the pipe interior of described flow duct 1, is used to described fluid to apply lasting high voltage excitation or pulse excitation;
Described detection system is when work, each check point of described array type single negative electrode conducting probe 4 is as negative electrode, when the little fluid of resistivity flows through described check point, between check point and described circular anode 5, by the little fluid of resistivity, form path, it is high level that described multichannel collecting equipment 2 records this check point; When the large fluid of resistivity flows through described check point, between check point and described circular anode 5, be insulated, it is low level that described multichannel collecting equipment 2 records this check point, thereby obtains the dielectric distribution situation of each position in described flow duct 1 respective cross-section.
The present invention utilizes the notable difference of flow media resistivity, by anode, apply to pipeline section to be measured to continue or pulse voltage encourages, each check point of conducting probe is arranged on a certain cross section of pipe interior with various forms of array way, by corresponding support circuit, detect the connecting and disconnecting of the circuit situation of each check point, can distinguish near the fluid media (medium) type of each check point.By the testing result of each check point on rapid scanning cross section, obtain near the fluid media (medium) of each check point and distribute, just can obtain immediately mobile faultage image now, do not need through image reconstruction computing.
The present invention compares with flow pattern sensing device of the prior art, and tool has the following advantages:
(1) provide intuitively the real-time distribution image of flow section, be beneficial to artificial identification flow pattern directly perceived, also for computing machine judgement flow pattern provides more accurately abundant data;
(2) each check point of negative electrode probe works alone, and does not interfere with each other, and each check point has independently conducting loop, shares same anode, and parts are succinct, and principle is simple and reliable, and easy to understand is beneficial to realization;
(3) by sacrificial anode, reach the effect of the accurate negative electrode of protection, and because anode volume is large and be easy to replacing, thereby solved the electricity etching problem of impedance type probe;
(4) image reconstruction procedure, without complicated calculating inverting, only can realize control by single-chip microcomputer, cost-saving.
The two-phase flow chromatographic imaging system of array type single electrode conductance probe of the present invention, improved traditional bipolar sonde method and combined with chromatography imaging method, can realize the online phase pipe flow cross-sectional image (tomography) of measuring in real time and also can carry out water percentage calculating more accurately.The aspects such as discrimination, the flow pattern evolution mechanism that can be applied to phase pipe flow studied, water percentage detection in real time.If the array probe of two same-types is installed continuously in pipeline, and in conjunction with cross correlation algorithm, even can each phase velocity of flow and alternate slippage velocity be described.
Accompanying drawing explanation
Fig. 1 is the two phase flow pattern detection system structural drawing based on array type single negative electrode conducting probe according to an embodiment of the invention.
Fig. 2 is the electrolytic reaction schematic diagram relating in the present invention.
Fig. 3 is that a kind of according to an embodiment of the invention check point being applied in square pipe is the array type single negative electrode conducting probe schematic diagram that matrix is arranged.
Fig. 4 is that a kind of according to an embodiment of the invention check point being applied in circular pipe is radial array type single negative electrode conducting probe schematic diagram of arranging.
Fig. 5 is a kind of according to an embodiment of the invention array type single negative electrode conducting probe schematic diagram that utilizes soft arranging wire technique to realize.
Fig. 6 is the two-phase flow phase-splitting speed detection system schematic diagram that a kind of according to an embodiment of the invention application two group pattern formula conducting probes form.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 1 is the two phase flow pattern detection system structural drawing based on array type single negative electrode conducting probe according to an embodiment of the invention, as shown in Figure 1, in one embodiment of this invention, two phase flow pattern detection system based on array type single negative electrode conducting probe comprises: flow duct 1, multichannel collecting equipment 2, computing machine 3, array type single negative electrode conducting probe 4 and circular anode 5, for learning the wherein real-time nowed forming of diphasic flow medium, wherein:
Described flow duct 1 for the two-phase fluid that offers different medium (such as profit or air water, the present invention will be described as example to take below this two-phase fluid of profit) flow therein, in flow media, the resistivity of different medium is different, and there is very large difference, wherein resistivity of water is less, and the resistivity of oil phase/gas phase is larger;
Described array type single negative electrode conducting probe 4 is fixedly installed on the inwall of described flow duct 1, the check point quantity of described array type single negative electrode conducting probe 4 is more, each check point needs the extension line of an independent insulation, for reducing the interference of lead-in wire stream field, need to reduce as far as possible the wire diameter of extension line, described extension line is also electrically connected (such as welding) through the tube wall of described flow duct 1, and, on the lead terminal of described flow duct 1 outer wall, above-mentioned fixed sturcture is conducive to protect soft extension line not fractureed;
Described array type single negative electrode conducting probe 4 mainly comprises check point, check point extension line and the solid insulation skeleton that is space array and arranges, and the architectural feature of described check point is very simple, so long as exposed metal dots can become check point.As the wire termination core that is being coated insulation course is out exposed, the metal core that it exposes can be as check point.Check point is fixed on solid insulation skeleton with insulation extension line.Each check point only has a utmost point, and when system works, as negative electrode, all negative electrodes share an anode; Shown in Fig. 1 is a kind of implementation method of check point array arrangement---soft arranging wire method, its process detail can vide infra for the explanation of Fig. 5, arranging of check point is not limited to certain specific arrangement mode, so long as be space array, arrange, as emanant, arrange, axial arranging, square matrix are arranged etc. all can; The spacing of each check point can be that what to equate can be also unequal, and each check point is separate, and described array type single negative electrode conducting probe 4 is except check point is exposed, and the remainder of probe all insulate.
In addition, described array type single negative electrode conducting probe 4 can use separately, also can organize common use to reach different measurement objects more.Than as shown in Figure 5 be exactly the two-phase flow phase-splitting speed detector that utilizes two group pattern formula probes to form.
Described multichannel collecting equipment 2 is connected with the lead terminal of described flow duct 1 outer wall, such as being connected with the lead terminal of described flow duct 1 outer wall by multi-core cable, so that described multichannel collecting equipment 2 is connected with each check point on array type single negative electrode conducting probe 4; Described multichannel collecting equipment 2 is for the current potential height of each check point of high speed acquisition, and the potentiometric detection result for whole check points is each time compressed, send to computing machine or wait until subsequent treatment, described multichannel collecting equipment can utilize multichannel collecting card, multichannel collecting control panel, the data acquisition equipments such as single-chip microcomputer;
Described computing machine 3 is connected with the output terminal of described multichannel collecting equipment 2, such as being connected with the output terminal of described multichannel collecting equipment 2 via Serial Port Line by standard serial port communication protocol, the data that multichannel collecting equipment 2 sends for receiving in real time, described in decompress(ion), and according to the testing result of each check point and geometric position, show the real-time cross-sectional image of described flow duct 1; Described computing machine 3 can also be according to cross-sectional image reconstruction result, and the area of section on average occupying according to each check point calculates diphasic flow cross section phase distributive law, i.e. each real-time phase holdup information.Described circular anode 5 is installed on inner tubal wall or the pipe interior (being arranged on inner-walls of duct because its randomness has more than to be limited to) of described flow duct 1, is used to described fluid to apply lasting high voltage excitation (such as the voltage drive of 12V) or pulse excitation (pulsed frequency is relevant with the acquisition capacity of multichannel collecting equipment 2); The zero potential end UNICOM of the zero potential end of the voltage drive loading and multichannel collecting equipment 2 hereinafter described, to keep both Voltage References identical zero point; In electrolytic reaction, described circular anode 5 is slowly corroded as the corrosion utmost point, and each check point of described array type single negative electrode conducting probe 4 is as negative electrode protected (electrolytic reaction can with reference to the explanation for Fig. 2).Described circular anode 5 can be installed on the upstream of described array type single negative electrode conducting probe 4, also can be installed on the downstream of described array type single negative electrode conducting probe 4, and installation site distance probes is advisable to be less than 2 times of internal diameter of the pipeline.The material of described circular anode 5 can be the conductive materials such as copper, aluminium, stainless steel; Because the present invention adopts the design of assistant anode, therefore, the thickness of described circular anode 5, shape all can design according to pipe shape, and the inwall of anode and the inwall of pipeline are coincided, and be connected on pipeline with form of flanges, to reduce the impact of stream field.
" single negative electrode " concept of described array type single negative electrode conducting probe 4 refer to probe each independently check point only have a utmost point but not the two poles of the earth, and this utmost point is used as negative electrode in metering circuit.The a certain check point of described array type single negative electrode conducting probe 4 be only responsible for to detect the current potential height of the fluid components being in contact with it, and then by comparing to judge near the fluid components this check point with threshold potential.
Described detection system is when work, and each check point of described array type single negative electrode conducting probe 4 is used as negative electrode, and by the excitation of anode, the water body contacting with anode can be actuated to noble potential, and gas phase or oil phase present low level because resistivity is low.That is to say, when conductive fluid flows through a check point of described array type single negative electrode conducting probe 4, exposed metal detection point is awash, between negative electrode check point and anode, nationality forms path by continuous water, 2 pairs of these points of multichannel collecting equipment are measured and (such as utilizing its inner numerical selector part, are measured, now, the output valve of numerical selector part is one), by multichannel collecting equipment 2 records, obtain high level signal; When insulating medium is (while crossing the described check point on probe such as oil or stream, exposed metal detection point is coated by described insulating medium, between negative electrode and positive electrode, be insulated, cannot form path, the numerical selector part of multichannel collecting equipment 2 inside is measured (now this point, the output valve of numerical selector part is zero), by multichannel collecting equipment 2 records, obtain low level signal.So, described multichannel collecting equipment 2 is measured the data of each check point by high-velocity scanning, it is current potential height, can know the medium kind of each position in described flow duct 1 respective cross-section, thereby obtain the dielectric distribution situation in described flow duct 1 respective cross-section, it is two-phase distribution situation, and the data that can further detection be obtained are sent to described computing machine 3, two-phase on whole pipe flow section is distributed and carries out Real-time image display, thereby obtain the tomography image in described flow duct 1 cross section.Because media type is corresponding one by one with testing result, image reconstruction process, without complicated algorithm, can be controlled by small-sized single-chip microcomputer.
In the present invention, due to the electrolytic reaction relating in water, described anode is subject to electrolytic reaction principle and is slowly corroded under water environment, and can be protected as the probe in detecting point of negative electrode, thereby can reach protection negative electrode probe, extend probe serviceable life, reduce the object of the replacement cost of probe; The volume of described anode is much larger than negative electrode, thereby greatly strengthened the resistance to corrosion of whole chromatographic imaging system; Described anode is independent, such as can be designed as the flange arrangement that is easy to dismounting, after damage or well damage, can directly change, and without anticathode, makes change.
Fig. 2 is the electrolytic reaction schematic diagram relating in the present invention, and in Fig. 2, A is that material is the anode ring of copper, and B is a schematic independent negative electrode check point, and under the excitation of power supply, anode voltage is high, and cathodic electricity forces down, free OH in water
-from negative electrode anode, moved by the effect of electric field force; copper loses two electronics becomes copper ion; and be combined with hydroxide ion and generate hydroxide deposits (trace); negative electrode discharges electronics; be combined with free hydrogen ion, generate bubble hydrogen (trace), by the principle of above electrolytic reaction, learnt; anode metal can slowly be corroded, and cathode material is protected.
Fig. 3 is that a kind of according to an embodiment of the invention check point being applied in square pipe is the array type single negative electrode conducting probe schematic diagram that matrix is arranged.In Fig. 3, A represents circular anode derby, and B represents flow duct, and C represents array type single negative electrode conducting probe.Because the cross section of square pipe is rectangle, and array probe application can make arranging of check point more even in square-section, make the measurement result of water holdup information more accurate, therefore, can utilize oil phase area and water area in measurement image result to carry out the water holdup information in simple computation two-phase flow.
Fig. 4 is that a kind of according to an embodiment of the invention check point being applied in circular pipe is radial array type single negative electrode conducting probe schematic diagram of arranging, in Fig. 4, A is exposed metal detection point, B is insulating supporting skeleton, C is the gripping section of array probe, whole probe is similar to a pad, only Probe clip need be contained between pipeline two flanges and can complete installation.Check point is arranged in radial insulation framework according to certain rule, and each check point, by being attached to skeleton surface or burying the outside that meets at this array probe in the insulation extension line of skeleton inside, is connected with subsequent conditioning circuit by lead terminal.Due to the rotational symmetry characteristic of circular array, this arrangement method can be described the flow state of round section pipeline more accurately, such as the diphasic flow in vertical circular tee section pipeline.
Fig. 5 is that a kind of according to an embodiment of the invention check point that utilizes soft arranging wire technique to realize is the array type single negative electrode conducting probe schematic diagram that matrix form is arranged.In Fig. 5, C is circular anode derby, and B is insulation winding displacement fixed block, and A is winding displacement probe.Utilize soft arranging wire technique, copper wires is printed in the polyimide substrate of heat-proof corrosion resistant erosion, then the overlay film that is coated polyimide material on surface is with insulation, is only come out in the end of copper wires, as metal detection point.This kind of technique can be compressed to the thickness of sheet bus-bar construction 0.1mm left and right, and the bus-bar construction of each sheet can be settled 20 with interior check point.By by many winding displacement arrangements arranged side by side or radial, can be easy to form check point array, can realize the judgement of distribution mutually in cross section of pipe interior.Soft arranging wire technique perfectly combines check point, extension line, insulating supporting skeleton, due to very thin thickness, can not cause obvious impact by stream field.
Fig. 6 is that a kind of according to an embodiment of the invention application two group pattern formula list cathodic electricities are led the two-phase flow phase-splitting speed detector schematic diagram that probe forms.In Fig. 6, A is anode, and B and B* are that a kind of array type single cathodic electricity is led probe module, and C and C* are flow duct, and D is correlator, for detection of the data of two sensors.Anode A is installed between two probes, by two probes, is shared.Two probe in detecting plan ranges are L, and L is enough little, to such an extent as to significant change does not occur its flow state (as distribution of each phase situation, oil vacuole size position etc.) when fluid is flowed through two groups of winding displacements.When oil vacuole or bubble are during successively fast through two group pattern probes, can form successively the most close image of two width shapes, by cross correlation algorithm, can find out this two width image, because its mistiming T is also known, the oil phase/gas phase that just can obtain disperseing in diphasic flow by V=L/T minute phase velocity.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the two phase flow pattern detection system based on array type single negative electrode conducting probe, is characterized in that, this system comprises:
Flow duct (1), flows therein for offering the two-phase fluid that resistivity contrasts is very large;
Array type single negative electrode conducting probe (4), be fixedly installed on the inwall of described flow duct (1), comprise and be a plurality of check points and the check point extension line that space array is arranged, each check point only has a utmost point, as negative electrode, each check point extension line is electrically connected through the tube wall of described flow duct (1) and the lead terminal of described flow duct (1) outer wall;
Multichannel collecting equipment (2) is connected with the lead terminal of described flow duct (1) outer wall, for gathering the potential value of each check point, and the potentiometric detection result for whole check points is each time compressed;
Circular anode (5) is installed on inner-walls of duct or the pipe interior of described flow duct (1), is used to described fluid to apply lasting high voltage excitation or pulse excitation;
Described detection system is when work, each check point of described array type single negative electrode conducting probe (4) is as negative electrode, when the little fluid of resistivity flows through described check point, between check point and described circular anode (5), by the little fluid of resistivity, form path, it is high level that described multichannel collecting equipment (2) records this check point; When the large fluid of resistivity flows through described check point, between check point and described circular anode (5), be insulated, it is low level that described multichannel collecting equipment (2) records this check point, thereby obtains the dielectric distribution situation of each position in described flow duct (1) respective cross-section.
2. the two phase flow pattern detection system based on array type single negative electrode conducting probe according to claim 1, is characterized in that, the check point of described array type single negative electrode conducting probe (4) is exposed metal dots, other SI semi-insulations.
3. the two phase flow pattern detection system based on array type single negative electrode conducting probe according to claim 1, is characterized in that, described array type single negative electrode conducting probe (4) also comprises solid insulation skeleton, for fixed test point and check point extension line.
4. the two phase flow pattern detection system based on array type single negative electrode conducting probe according to claim 1, it is characterized in that, described detection system also comprises computing machine (3), be connected with the output terminal of described multichannel collecting equipment (2), the data that multichannel collecting equipment (2) sends for receiving in real time, described in decompress(ion), and according to the testing result of each check point and geometric position, show the real-time cross-sectional image of described flow duct (1).
5. the two phase flow pattern detection system based on array type single negative electrode conducting probe according to claim 4, it is characterized in that, described computing machine (3) is also further according to described real-time cross-sectional image, and the area of section on average occupying according to each check point calculates diphasic flow area of section ratio.
6. the two phase flow pattern detection system based on array type single negative electrode conducting probe according to claim 1, it is characterized in that, the zero potential end UNICOM of the zero potential end of the voltage drive that described circular anode (5) loads and described multichannel collecting equipment (2), to keep both Voltage References identical zero point.
7. the two phase flow pattern detection system based on array type single negative electrode conducting probe according to claim 1, it is characterized in that, described circular anode (5) is installed on upstream or the downstream of described array type single negative electrode conducting probe (4), and the distance between described array type single negative electrode conducting probe (4) is less than the twice of flow duct (1) internal diameter, its inner wall shape is consistent with flow duct (1) inwall, is fixedly mounted in flow duct (1).
8. the two phase flow pattern detection system based on array type single negative electrode conducting probe according to claim 1, is characterized in that, the material of described circular anode (5) is conductive material.
9. the two phase flow pattern detection system based on array type single negative electrode conducting probe according to claim 1; it is characterized in that; in described detection system work; described circular anode (5) is slowly corroded as the corrosion utmost point, and each check point of described array type single negative electrode conducting probe (4) is protected as negative electrode.
10. the two phase flow pattern detection system based on array type single negative electrode conducting probe according to claim 1, is characterized in that, described array type single negative electrode conducting probe (4) uses separately or many groups are common uses.
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2516960A (en) * | 2013-08-08 | 2015-02-11 | Zenith Oilfield Technology Ltd | Multiphase Flowmeter |
| CN103776875B (en) * | 2014-01-23 | 2016-04-20 | 天津大学 | A kind of four sector distributing triggers reorganization for two-phase flow |
| CN103776876B (en) * | 2014-01-23 | 2016-03-30 | 天津大学 | A kind of structure parameter optimizing method of distributing triggers reorganization |
| CN105987936B (en) * | 2015-01-30 | 2020-06-23 | 姚希维 | Probe detection microstructure unit, sensor, device and method for measuring water content |
| CN104764493B (en) * | 2015-04-20 | 2017-08-04 | 华北电力大学 | Fluid bed solids grain testing apparatus and method based on netted electrostatic sensor |
| CN105784074A (en) * | 2016-04-29 | 2016-07-20 | 四川金码科技有限公司 | High-accuracy array type liquid level measurement device |
| CN108344436B (en) * | 2017-01-23 | 2024-02-06 | 国核华清（北京）核电技术研发中心有限公司 | Two-phase flow measuring device |
| CN108344437B (en) * | 2017-01-23 | 2024-02-06 | 国核华清（北京）核电技术研发中心有限公司 | Two-phase flow measuring device |
| CN106932444B (en) * | 2017-03-14 | 2019-10-18 | 中国石油大学(北京) | A kind of batching interface test experience device and experimental method based on conductivity |
| CN108845005A (en) * | 2018-06-22 | 2018-11-20 | 上海交通大学 | Suitable for heating the embedded cavity measuring sensor of plate channel two-phase flow |
| CN109813383B (en) * | 2019-01-28 | 2020-08-11 | 中国石油天然气股份有限公司 | Measuring assembly, and measuring method and device for oil phase volume flow and oil holdup |
| CN111066440B (en) * | 2020-01-14 | 2021-03-19 | 中国科学院合肥物质科学研究院 | Water and fertilizer all-in-one machine fertilizer preparation system based on non-contact conductivity sensor and control method thereof |
| CN112985758B (en) * | 2021-02-04 | 2022-12-23 | 四川大学 | Experimental device and method for measuring vortex size in complex gas-liquid two-phase flow |
| CN115598183B (en) * | 2022-11-11 | 2024-03-19 | 利诚检测认证集团股份有限公司 | Liquid food conductivity detection method and device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3792347A (en) * | 1972-05-17 | 1974-02-12 | J Hawley | Oil well tool for measuring percent oil |
| DE19806476C1 (en) * | 1998-02-17 | 1999-10-28 | Deutsch Zentr Luft & Raumfahrt | Volumetric gas quantity determination in pipe conducting fluid and gaseous phase flow |
| US6122956A (en) * | 1998-09-09 | 2000-09-26 | University Of Florida | Method and apparatus for monitoring concentration of a slurry flowing in a pipeline |
| CN1344929A (en) * | 2000-09-26 | 2002-04-17 | 中国科学院力学研究所 | Resistance chromatographic instrument for monitoring gas-liquid phase pipe flow and its monitoring method |
| US7130780B2 (en) * | 2002-12-13 | 2006-10-31 | The United States Of America As Represented By The Secretary Of The Army | Method and instrument for electronically recording and imaging fluid washover via measuring characteristics of the fluid at multiple locations simultaneously |
| CN102435641A (en) * | 2011-08-25 | 2012-05-02 | 天津大学 | Coaxial conductivity sensor, measurement system and measurement method for oil content of oil-water two-phase flow |
| CN102495107B (en) * | 2011-10-19 | 2013-09-25 | 天津大学 | Internal and external composite array sensor for detecting process parameter of fluid in pipeline |
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