CN114280140B - Two-phase flow detection device and method based on ultrasonic sensing technology - Google Patents
Two-phase flow detection device and method based on ultrasonic sensing technology Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 82
- 238000005516 engineering process Methods 0.000 title claims abstract description 25
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title description 5
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 238000003384 imaging method Methods 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
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- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims description 9
- 238000003491 array Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
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- 238000005259 measurement Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 5
- 239000003209 petroleum derivative Substances 0.000 description 4
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- 238000004458 analytical method Methods 0.000 description 2
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Abstract
The invention discloses a two-phase flow detection device and a detection method based on an ultrasonic sensing technology, wherein the detection device comprises a rectifying tube, a detection tube, an ultrasonic sensor module and an imaging module; the rectifying tube is used for changing the flowing state of the oil-gas mixed liquid to form a gas-liquid layering; the detection tube is in butt joint with the outlet end of the rectifying tube and is used for stabilizing the fluid form of the oil-gas mixed liquid; the ultrasonic sensor module is arranged on the outer wall of the detection tube and used for detecting the content of gas and liquid in the oil-gas mixed liquid in the detection tube; the imaging module is connected with the ultrasonic sensor module and used for collecting and correcting the space coordinate data of the ultrasonic sensor module and coupling the data to form a three-dimensional proportion model. The invention has the advantages of simple structure, high precision, good accuracy, high integration level, stable performance, good adaptability and the like.
Description
Technical Field
The invention mainly relates to the technical field of petroleum detection, in particular to a two-phase flow detection device and method based on an ultrasonic sensing technology.
Background
The petroleum gas content detection is a problem to be solved urgently in the petroleum industry, and is mainly because petroleum components extracted from different oil fields are complex, and various forms such as oil-in-gas or water-in-gas exist. At present, the technical field of petroleum gas content detection mainly adopts methods such as a capacitance tomography technology, a conductivity detection technology and a radio frequency detection technology, but the detection methods have the defects of more flow pattern limitation, poor measurement precision, large detection blind area, large difficulty in fitting detection data and the like, and the petroleum gas content data and the ratio of the two are difficult to accurately measure, so that the petroleum gas content can be simply judged according to an empirical formula.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems existing in the prior art, the invention provides the two-phase flow detection device and the detection method based on the ultrasonic sensing technology, which have the advantages of simple structure, high precision and high integration level.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a two-phase flow detection device based on ultrasonic sensing technology comprises a rectifying tube, a detection tube, an ultrasonic sensor module and an imaging module;
the rectifying tube is used for changing the flowing state of the oil-gas mixed liquid to form a gas-liquid layering;
the detection tube is in butt joint with the outlet end of the rectifying tube and is used for stabilizing the fluid form of the oil-gas mixed liquid;
the ultrasonic sensor module is arranged on the outer wall of the detection tube and used for detecting the content of gas and liquid in the oil-gas mixed liquid in the detection tube;
the imaging module is connected with the ultrasonic sensor module and used for collecting and correcting the space coordinate data of the ultrasonic sensor module and coupling the data to form a three-dimensional proportion model.
As a further improvement of the above technical scheme:
the rectifying tube comprises a base and a flow dividing sheet, wherein the base is a gas-liquid flow dividing member with a special-shaped cavity structure, the inner cavity of the inlet end of the base is of a circular structure, and the inner cavity of the base is gradually transited to a square structure close to the outlet end, so that the oil-gas mixed liquid in the inner cavity of the circular structure is smoothly transited to the inner cavity of the square structure, and a standard fluid form with a definite limit is formed; the splitter plate is arranged in the inner cavity of the square structure and used for separating gas and liquid in the oil-gas mixed liquid.
Semi-circular protruding punching structures which are arranged at intervals are arranged on the flow dividing sheets, so that gas in the oil-gas mixed liquid can be separated out and divided conveniently; wherein the cross section of the semicircular convex punching structure faces the outlet end of the rectifying tube.
The ultrasonic sensor module comprises a high-frequency ultrasonic module and a low-frequency ultrasonic module; the high-frequency ultrasonic modules are respectively arranged on the bottom surface and the side surface of the outer wall of the outlet end of the detection tube; the low-frequency ultrasonic modules are provided with two groups, are respectively installed at the top and the side surface of the outer wall of the outlet end of the detection tube in a perforation way, and are symmetrically arranged with the high-frequency ultrasonic modules; the high-frequency ultrasonic module propagates in the liquid but cannot propagate in the gas, and is used for detecting the space ratio of the liquid; the low-frequency ultrasonic module propagates in gas but cannot propagate in liquid, and is used for detecting the space ratio of the gas.
The high-frequency ultrasonic module is a group of 2-5 MHZ ultrasonic sensor longitudinal arrays; the low-frequency ultrasonic module is a group of 100-800 KHZ ultrasonic sensor longitudinal arrays.
The detection tube is a stainless steel tube with flanges at two ends, the inside of the detection tube is provided with high smoothness so as to reduce the flowing resistance of the oil-gas mixture, and the detection tube is connected with the rectifying tube through a stud combination.
A seal is provided between the detector tube and the rectifier tube to form an effective seal.
The sealing element is a metal winding sealing ring.
The imaging module comprises an upper computer, and automatically generates a gas-liquid volume ratio parameter data file when a cube three-dimensional ratio model is formed.
The invention also discloses a detection method of the two-phase flow detection device based on the ultrasonic sensing technology, which comprises the following steps:
the ultrasonic sensor module detects the content of gas and liquid in the oil-gas mixture in the detection pipe;
and the imaging module is used for collecting and correcting the space coordinate data of the ultrasonic sensor module and coupling the data to form a three-dimensional proportion model.
Compared with the prior art, the invention has the advantages that:
the two-phase flow detection device utilizes the transmission characteristics of ultrasonic waves with different frequencies to detect the liquid level height and the fluid state (wherein the transmission characteristics of the high-frequency ultrasonic waves in the solid are very good, the measurement is accurate, the transmission capability of the low-frequency ultrasonic waves in the gas is very strong, the distance measurement is fast and accurate), the high-frequency ultrasonic modules and the low-frequency ultrasonic modules are symmetrically arranged and installed, and simultaneously detect the oil-gas mixture, and judge the gas content in the petroleum by distinguishing the space curve of the interface of two substances, so that the content proportion of the gas and the liquid can be rapidly and accurately analyzed, and a very visual and sustainable and updated three-dimensional proportion model can be provided, which is beneficial to the observation of operators and the analysis of the gas-liquid proportion and the fluid state of the oil-gas mixture.
The two-phase flow detection device based on different ultrasonic frequency transmission characteristics has the advantages of low data fitting difficulty, good engineering implementation, simple structure, high precision, good accuracy, high integration level, stable performance, good adaptability and the like.
The two-phase flow detection device adopts the ultrasonic sensing module which is very mature in technology and higher in precision, can greatly simplify the processing difficulty of detection data, and effectively improves the measurement precision. Meanwhile, the ultrasonic sensing module technology is mature and diversified, so that the requirements of installation, debugging and cost control can be well met, and the ultrasonic sensing module has a very wide market application prospect.
Drawings
Fig. 1 is a schematic structural diagram of a detection device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a rectifying tube according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a detection tube and an ultrasonic sensor module according to an embodiment of the present invention.
Fig. 4 is a schematic layout diagram of an ultrasonic sensor module according to an embodiment of the invention.
Fig. 5 is a three-dimensional scaling model effect diagram after data fitting of the imaging module of the present invention.
Legend description: 1. rectifying tube; 11. a diverter blade; 111. a semicircular convex punching structure; 12. a base; 2. a detection tube; 3. an ultrasonic sensor module; 31. a high-frequency ultrasonic module; 32. a low-frequency ultrasonic module; 4. an imaging module; 5. a stud assembly; 6. a metal winding sealing ring; 7. an oil-gas mixture; 71. a gas; 72. a liquid.
Detailed Description
The invention is further described below with reference to the drawings and specific examples.
As shown in fig. 1, the two-phase flow detection device of the embodiment of the invention comprises a rectifying tube 1, a detection tube 2, an ultrasonic sensor module 3 and an imaging module 4; the rectifying tube 1 is used for changing the flowing state of the oil-gas mixed liquid 7 to form gas-liquid layered flow; the detection tube 2 is in butt joint with the outlet end of the rectifying tube 1 and is used for stabilizing the fluid form of the oil-gas mixed liquid 7; the ultrasonic sensor module 3 is arranged on the outer wall of the detection tube 2 and is used for detecting the contents of gas 71 and liquid 72 in the oil-gas mixed liquid 7 in the detection tube 2; the imaging module 4 is connected with the ultrasonic sensor module 3 and is used for collecting and correcting detection data of the ultrasonic sensor module 3 and coupling the data to form a cube three-dimensional proportion model.
As shown in fig. 1 and 2, in a specific embodiment, the rectifying tube 1 includes a splitter 11 and a base 12, wherein the base is a gas-liquid splitting member with a special cavity structure, and an inner cavity at an inlet end of the base is a circular structure, and gradually transitions to a square structure adjacent to an outlet end, so as to smoothly transition an oil-gas mixture in the inner cavity of the circular structure into the inner cavity of the square structure, and form a standard fluid form with a well-defined limit. The splitter plate 11 is arranged in the inner cavity of the square structure and is used for separating the gas 71 and the liquid 72 in the oil-gas mixed liquid 7; the base 12 is used for welding and fixing the splitter 11 and forms a whole.
Specifically, the number of the splitter blades 11 is multiple, the splitter blades 11 are arranged in the inner cavity of the square structure up and down, a plurality of through holes are arranged on each splitter blade 11 at intervals, each splitter blade 12 gradually inclines downwards along the direction from the inlet end to the outlet end of the rectifying tube 1 and is used for extruding fluid to enable gas to be discharged upwards through the through holes as soon as possible, and semicircular convex punching structures 111 are arranged on the splitter blades 11 at intervals, wherein the sections of the semicircular convex punching structures 111 face the outlet end; when the oil-gas mixture 7 passes through, the semicircular convex punching structure 111 can generate fluid vortex bands (shown in fig. 2) due to pressure difference between the upper surface and the lower surface, so as to facilitate precipitation and diversion of the gas 71 in the oil-gas mixture 7.
As shown in fig. 1 and 3, in a specific embodiment, the detection tube 2 is a stainless steel tube (such as a square tube, wherein the square tube is convenient for installation of an ultrasonic sensor, space coordinates are established through an installation position, stereoscopic imaging display is convenient), the inside of the detection tube is provided with high smoothness so as to reduce the flowing resistance of the oil-gas mixed liquid 7, the detection tube is used for stabilizing the flowing state of the oil-gas mixed liquid 7, one end of the detection tube is connected with the rectifying tube 1 by adopting a stud combination 5, and a metal winding sealing ring 6 is added between the detection tube and the rectifying tube to form a seal.
As shown in fig. 3 and 4, the ultrasonic sensor modules 3 are installed on the outer wall of the detection tube 2 in a symmetrical layout and in a pair-wise installation manner. Specifically, the ultrasonic sensor module 3 includes a high-frequency ultrasonic module 31 and a low-frequency ultrasonic module 32. The high-frequency ultrasonic modules 31 are respectively arranged on the bottom surface and the side surface of the outer wall of the outlet end of the detection tube 2; the low-frequency ultrasonic modules 32 are provided with two groups, are respectively installed on the top and the side surface of the outer wall of the outlet end of the detection tube 2 in a perforation mode, and are symmetrically arranged in pairs with the high-frequency ultrasonic modules 31. Wherein the high-frequency ultrasonic module 31 is a group of 2-5 MHZ ultrasonic sensor longitudinal arrays which can propagate in liquid but cannot propagate in gas and is used for detecting the space ratio of the liquid 72; the low frequency ultrasound module 32 is a set of 100-800 KHZ ultrasound transducer longitudinal arrays that can propagate in a gas but cannot propagate in a liquid for detecting the space occupation ratio of the gas 71.
As shown in fig. 5, in a specific embodiment, the imaging module 4 is configured to process the spatial coordinate data information detected by the ultrasonic sensor module 3 to perform coupling correction processing, and combine the spatial coordinate data information with a three-dimensional stereo scale model that is intuitive, updated in real time and capable of dragging a mouse to display coordinate point data, and automatically generate data files such as gas-liquid volume ratio parameters (the specific imaging technology belongs to the conventional technology).
The two-phase flow detection device of the invention utilizes the transmission characteristics of ultrasonic waves with different frequencies to detect the liquid level height and the fluid state (wherein the transmission characteristics of the high-frequency ultrasonic waves in the solid are very good, the measurement is accurate, the transmission capability of the low-frequency ultrasonic waves in the gas is very strong, the distance measurement is fast and accurate), the high-frequency ultrasonic module 31 and the low-frequency ultrasonic module 32 are symmetrically arranged and installed, and detect the oil-gas mixture at the same time, and judge the gas content in the petroleum by distinguishing the space curve of the interface of two substances, thereby being capable of fast and accurately analyzing the content proportion of the gas and the liquid, providing a very visual and sustainable three-dimensional proportion model, and being beneficial to the observation of operators and the analysis of the gas-liquid proportion and the flow state of the oil-gas mixture.
The two-phase flow detection device based on different ultrasonic frequency transmission characteristics has the advantages of low data fitting difficulty, good engineering implementation, simple structure, high precision, good accuracy, high integration level, stable performance, good adaptability and the like.
The two-phase flow detection device adopts the ultrasonic sensing module 3 which is very mature in technology and high in precision, can greatly simplify the processing difficulty of detection data, and effectively improves the measurement precision. Meanwhile, the ultrasonic sensing module 3 is mature and diversified in technology, so that the requirements of installation, debugging and cost control can be well met, and the ultrasonic sensing module has a very wide market application prospect.
The embodiment of the invention also discloses a detection method of the two-phase flow detection device based on the ultrasonic sensing technology, which comprises the following steps: the ultrasonic sensor module 3 detects the content of gas 71 and liquid 72 in the oil-gas mixture 7 in the detection tube 2; and the imaging module 4 is used for collecting and correcting the space coordinate data of the ultrasonic sensor module 3, coupling the data to form a three-dimensional proportion model, and automatically generating data files such as gas-liquid volume proportion parameters and the like. The detection method is realized based on the detection device, and the measurement is accurate and easy to realize.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.
Claims (8)
1. The two-phase flow detection device based on the ultrasonic sensing technology is characterized by comprising a rectifying tube (1), a detection tube (2), an ultrasonic sensor module (3) and an imaging module (4);
the rectifying tube (1) is used for changing the flowing state of the oil-gas mixed liquid (7) to form gas-liquid layering;
the detection tube (2) is in butt joint with the outlet end of the rectifying tube (1) and is used for stabilizing the fluid form of the oil-gas mixed liquid (7);
the ultrasonic sensor module (3) is arranged on the outer wall of the detection tube (2) and is used for detecting the content of gas (71) and liquid (72) in the oil-gas mixed liquid (7) in the detection tube (2);
the imaging module (4) is connected with the ultrasonic sensor module (3) and used for collecting and correcting the space coordinate data of the ultrasonic sensor module (3) and coupling the data to form a three-dimensional proportion model;
the rectifying tube (1) comprises a base (12) and a flow dividing sheet (11), wherein the base (12) is a gas-liquid flow dividing member with a special-shaped cavity structure, an inner cavity at an inlet end of the base is of a circular structure, the inner cavity is gradually transited to a square structure close to an outlet end, and the gas-oil mixed liquid in the inner cavity of the circular structure is smoothly transited to the inner cavity of the square structure, and a standard fluid form with a definite limit is formed; the splitter vane (11) is arranged in the inner cavity of the square structure and is used for separating gas (71) and liquid (72) in the oil-gas mixed liquid (7); the number of the splitter blades (11) is multiple, the splitter blades (11) are arranged in the inner cavity of the square structure up and down, a plurality of through holes are arranged on each splitter blade (11) at intervals, each splitter blade (11) gradually inclines downwards along the direction from the inlet end to the outlet end of the rectifying tube (1) and is used for extruding fluid to enable gas to be discharged upwards through the through holes as soon as possible;
semi-circular protruding punching structures (111) which are arranged at intervals are arranged on the flow dividing sheets (11), so that the separation and the flow dividing of the gas (71) in the oil-gas mixed liquid (7) are facilitated; wherein the cross section of the semicircular convex punching structure (111) faces to the outlet end of the rectifying tube (1); when the oil-gas mixed liquid (7) passes through, the semicircular bulge punching structure (111) can generate fluid vortex bands due to pressure difference between the upper surface and the lower surface, and the separation and the diversion of the gas (71) in the oil-gas mixed liquid (7) are facilitated.
2. The two-phase flow detection device based on ultrasonic sensing technology according to claim 1, characterized in that the ultrasonic sensor module (3) comprises a high frequency ultrasonic module (31) and a low frequency ultrasonic module (32); wherein, the high-frequency ultrasonic modules (31) are respectively arranged on the bottom surface and the side surface of the outer wall of the outlet end of the detection tube (2); the low-frequency ultrasonic modules (32) are provided with two groups, are respectively installed at the top and the side surface of the outer wall of the outlet end of the detection tube (2) in a perforation way, and are symmetrically arranged with the high-frequency ultrasonic modules (31); wherein the high frequency ultrasound module (31) propagates in the liquid but not in the gas for detecting the space occupation ratio of the liquid (72); the low frequency ultrasound module (32) propagates in a gas but not in a liquid for detecting a space ratio of the gas (71).
3. The two-phase flow detection device based on ultrasonic sensing technology according to claim 2, characterized in that the high frequency ultrasonic module (31) is a set of 2-5 MHZ ultrasonic sensor longitudinal arrays; the low-frequency ultrasonic module (32) is a group of 100-800 KHZ ultrasonic sensor longitudinal arrays.
4. The two-phase flow detection device based on the ultrasonic sensing technology according to claim 1, 2 or 3, wherein the detection tube (2) is a stainless steel tube with flanges at two ends and has a high finish inside so as to reduce the flow resistance of the oil-gas mixture (7), and the detection tube (2) is connected with the rectifying tube (1) through a stud combination (5).
5. The two-phase flow detection device based on ultrasonic sensing technology according to claim 4, characterized in that a seal is provided between the detection tube (2) and the rectifying tube (1) to form an effective seal.
6. The two-phase flow detection device based on ultrasonic sensing technology according to claim 5, characterized in that the seal is a metal wound sealing ring (6).
7. The two-phase flow detection device based on the ultrasonic sensing technology according to claim 1, 2 or 3, wherein the imaging module (4) comprises an upper computer, and automatically generates a gas-liquid volume ratio parameter data file when a cube three-dimensional ratio model is formed.
8. A detection method of a two-phase flow detection device based on an ultrasonic sensing technology according to any one of claims 1 to 7, characterized by comprising the steps of:
the ultrasonic sensor module (3) detects the content of gas (71) and liquid (72) in the oil-gas mixed liquid (7) in the detection tube (2);
and the imaging module (4) is used for collecting and correcting the space coordinate data of the ultrasonic sensor module (3) and coupling the data to form a three-dimensional proportion model.
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| CN114280140A (en) | 2022-04-05 |
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