High-pressure-resistant precession vortex flowmeter
By introducing a three-stage hydraulic expansion structure and magnetohydrodynamics principle into the vortex flowmeter, combined with an intelligent sensor network, the problems of metering accuracy and response speed under high temperature and high pressure conditions are solved, achieving high-precision and fast flow metering.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-13
AI Technical Summary
Existing vortex flowmeters suffer from decreased measurement accuracy and large errors under high temperature and high pressure conditions in oil and gas wells, and existing solutions have failed to effectively solve the problem of accurate measurement under extreme conditions.
Employing a three-stage hydraulic expansion structure and magnetohydrodynamic principles, combined with an intelligent sensor network, and through the design of buffer components and flow guide plates, it achieves the stepwise conversion of fluid kinetic energy and pressure regulation. In conjunction with the spiral guide vanes, it forms the Coanda effect, improving measurement accuracy and response speed.
Under extreme operating conditions, the flow measurement accuracy was improved to the 0.5 standard, the response speed was increased by 3 times, the environmental adaptability was enhanced, and the measurement error was controlled within ±0.3%.
Smart Images
Figure CN223992621U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vortex flow meter technology, specifically a high-pressure resistant vortex flow meter. Background Technology
[0002] Vortex flowmeters, based on the Karman vortex street principle, achieve precise correlation between fluid oscillation frequency and flow velocity, demonstrating superior multiphase flow metering performance in oil and gas extraction, chemical process control, and thermal engineering. Their advantages include: employing embedded intelligent algorithms to achieve linear response with a wide range ratio (above 100:1), coupled with a mechanical transmission-free structure to ensure long-term stability; modular design supporting online diagnostics and remote calibration, reducing maintenance cycles by more than 60% compared to traditional instruments. However, under high-temperature and high-pressure oil and gas well conditions (such as thermal recovery steam injection and hydraulic fracturing operations), extreme pressure environments pose severe challenges to the instrument: when the medium pressure exceeds 64 MPa, conventional vortex generators are prone to deformation due to stress concentration, leading to Strouhal number deviation; the signal-to-noise ratio of piezoelectric sensors decreases under ultrastatic pressure conditions, resulting in a vortex frequency detection accuracy loss of up to 35%; furthermore, the thermal expansion effect caused by high-temperature media (>200℃) alters the flow channel geometry, further exacerbating metering errors. Existing solutions either rely on bulky pressure chambers that sacrifice response speed or employ complex compensation algorithms that increase system uncertainty, neither of which fundamentally solves the problem of accurate measurement under extreme conditions. Therefore, this case was developed through in-depth research into the above issues. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this utility model provides a high-pressure resistant vortex flowmeter, which solves some of the existing background technology problems.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-pressure resistant vortex flow meter, comprising: a vortex flow meter, a pair of convex drain pipes, and a pressure regulating structure, wherein the pair of convex drain pipes are respectively installed on both sides of the vortex flow meter, and the pressure regulating structure is installed on the inner side of the pair of convex drain pipes, and the pressure regulating structure includes: a pair of buffer components, a pair of buffer adjustment components, and multiple drain orifice plates;
[0005] Multiple drainage plates are respectively installed on the inner side of a pair of convex drainage tubes, and a pair of buffer components and a pair of buffer adjustment components are respectively installed on the inner side of a pair of convex drainage tubes.
[0006] The buffer adjustment assembly includes: an internal expansion hose, a pair of flared connecting hoses, three expansion bladders, a hydraulic tank, a hydraulic electric push rod, a hydraulic extrusion plate, and a multi-channel valve;
[0007] Three expansion bladders are installed inside the convex drainage tube. The inner expansion hose and a pair of horn-shaped connecting hoses are respectively installed on the three expansion bladders, and the pair of horn-shaped connecting hoses are respectively connected to both sides of the inner expansion hose. The hydraulic electric push rod is installed inside the hydraulic tank. The hydraulic extrusion plate is installed on the pushing end of the hydraulic electric push rod. The multi-channel valve is connected to the three expansion bladders and the hydraulic tank.
[0008] Preferably, the buffer assembly includes: a buffer ring, a horn-shaped buffer rubber ring, an internal toothed ring, a pair of buffer ring magnets, a conical diverter block, and a telescopic limiting shaft;
[0009] The buffer ring and the inner toothed ring are installed on the inner side of the convex drainage tube. The horn-shaped buffer rubber ring is installed on the buffer ring. The conical diverter block is movably inserted between the buffer ring and the inner toothed ring. A pair of buffer magnets are respectively installed on the inner toothed ring and the conical diverter block. The telescopic limiting shaft is inserted on the conical diverter block.
[0010] Preferably, a pressure sensor is provided on the inner side of each of the pair of convex drainage tubes.
[0011] Preferably, a spiral guide vane is provided on the inner side of each pair of convex drainage tubes.
[0012] Preferably, each of the pair of inner toothed rings is provided with an auxiliary ball.
[0013] Preferably, a pair of flow sensors are respectively provided on the inner side of the pair of convex drainage tubes.
[0014] This invention provides a high-pressure resistant vortex flow meter. It offers the following advantages: First, its core buffer adjustment component employs a three-stage hydraulic expansion structure, utilizing the Laval nozzle effect to achieve a hydraulic energy conversion efficiency exceeding 85%, enabling pressure regulation from 0.1 to 1.5 MPa within 5 ms, a response speed three times faster than traditional hydraulic adjustment systems. Second, the buffer component innovatively applies magnetohydrodynamic principles, achieving a tiered conversion of fluid kinetic energy through the coupling effect of a conical flow divider and a ring magnetic field, maintaining a flow division accuracy of ±0.02 mm while achieving vortex suppression efficiency of 92%. Finally, the integrated intelligent sensor network monitors pressure distribution and flow changes in real time, and, combined with the Coanda effect formed by the spiral guide vanes, improves the overall metering accuracy to the 0.5-level standard, maintaining a repeatability accuracy of ±0.3% even under pulsating flow conditions. Furthermore, the modular design supports online adjustment of multiple parameters, significantly enhancing the equipment's environmental adaptability. Attached Figure Description
[0015] Figure 1 This is a front sectional view of a high-pressure resistant vortex flowmeter according to the present invention.
[0016] Figure 2 This is a three-dimensional cross-sectional view of a high-pressure resistant vortex flowmeter according to the present invention.
[0017] Figure 3 This is a top cross-sectional view of the high-pressure resistant vortex flowmeter described in this utility model.
[0018] In the diagram: 1. Vortex flow meter; 2. Convex drain pipe; 3. Internal expansion hose; 4. Horn-shaped connecting hose; 5. Expansion bladder; 6. Hydraulic tank; 7. Hydraulic electric push rod; 8. Hydraulic extrusion plate; 9. Multi-channel valve; 10. Buffer ring; 11. Horn-shaped buffer ring; 12. Internal toothed ring; 13. Buffer ring magnet; 14. Conical diverter block; 15. Telescopic limit shaft. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example
[0021] like Figure 1-3 As shown, a pair of convex drain pipes 2 are respectively installed on both sides of the vortex flowmeter 1, and the pressure regulating structure is installed on the inner side of the pair of convex drain pipes 2. The pressure regulating structure includes: a pair of buffer components, a pair of buffer adjustment components, and multiple drain orifice plates.
[0022] Specifically, multiple drainage plates are respectively installed inside a pair of convex drainage tubes 2, and a pair of buffer components and a pair of buffer adjustment components are respectively installed inside a pair of convex drainage tubes 2.
[0023] Specifically, the buffer adjustment assembly includes: an internal expansion hose 3, a pair of horn-shaped connecting hoses 4, three expansion bladders 5, a hydraulic tank 6, a hydraulic electric push rod 7, a hydraulic extrusion plate 8, and a multi-channel valve 9;
[0024] Three expansion bladders 5 are installed inside the convex drainage tube 2. The inner expansion tube 3 and a pair of horn-shaped connecting tubes 4 are respectively installed on the three expansion bladders 5, and the pair of horn-shaped connecting tubes 4 are respectively connected to both sides of the inner expansion tube 3. The hydraulic electric push rod 7 is installed inside the hydraulic tank 6. The hydraulic extrusion plate 8 is installed on the pushing end of the hydraulic electric push rod 7. The multi-channel valve 9 is connected to the three expansion bladders 5 and the hydraulic tank 6.
[0025] It should be noted that, as described above, the hydraulic electric push rod 7 inside the hydraulic tank 6 drives the hydraulic extrusion plate 8 on it, causing the hydraulic extrusion plate 8 to rise and fall stably along the hydraulic tank 6. The hydraulic pressure inside the hydraulic tank 6 is diverted to the three expansion bladders 5 through the multi-channel valve 9. After the high-pressure hydraulic oil enters the three expansion bladders 5, the flow channel suddenly expands. This sudden change converts hydraulic energy into mechanical energy, driving the bladders to expand radially. The inner expansion hose 3 and the horn-shaped connecting hose 4 undergo expansion and contraction deformation under the expansion of the bladders. Its deformation efficiency is more than 40% higher than that of the traditional straight cylinder structure, similar to the energy release process of the supersonic jet at the outlet of the Laval nozzle. Thus, by changing the inner diameter of the inner expansion hose 3 and the pair of horn-shaped connecting hoses 4, the inner pressure is changed.
[0026] like Figure 1-3 As shown, the buffer assembly includes: a buffer ring 10, a horn-shaped buffer rubber ring 11, an internal toothed ring 12, a pair of buffer ring 10 magnets, a conical diverter block 14, and a telescopic limiting shaft 15.
[0027] Specifically, the buffer ring 10 and the inner toothed ring 12 are installed on the inner side of the convex drainage tube 2, the horn-shaped buffer rubber ring 11 is installed on the buffer ring 10, the conical diverter block 14 is movably inserted between the buffer ring 10 and the inner toothed ring 12, a pair of buffer magnets are respectively installed on the inner toothed ring 12 and the conical diverter block 14, and the telescopic limiting shaft 15 is inserted into the conical diverter block 14;
[0028] It should be noted that, as described above, the conical diverter block 14 is moved towards the inner toothed ring 12 by hydraulic compression. The inner toothed ring 12 and a pair of buffer rings 10 on the conical diverter block 14 magnetically repel each other, thus diverting the flow of liquid through the conical diverter block 14. The diverted liquid is then guided through the inner toothed ring 12. At the same time, the liquid is further diverted by the cooperation of the buffer ring 10 and the horn-shaped buffer rubber ring 11.
[0029] As a preferred embodiment, pressure sensors are further provided on the inner sides of each pair of convex drainage tubes 2.
[0030] As a preferred embodiment, a spiral guide vane is provided on the inner side of each pair of convex drainage tubes 2.
[0031] As a preferred embodiment, furthermore, each of the pair of internal toothed rings 12 is provided with an auxiliary ball.
[0032] As a preferred embodiment, a pair of flow sensors are respectively provided on the inner side of the pair of convex drainage tubes 2.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high pressure resistant progressing vortex flowmeter comprising: Vortex flowmeter, a pair of convex drainage pipes and pressure regulating structure, a pair of the convex drainage pipes are installed on both sides of the vortex flowmeter respectively, the pressure regulating structure is installed on the inner side of a pair of the convex drainage pipes, characterized by the pressure regulating structure comprising a pair of buffer components, a pair of buffer adjusting components and a plurality of drainage orifice plates; A plurality of the drainage orifice plates are installed on the inner side of a pair of the convex drainage pipes, a pair of the buffer components and a pair of the buffer adjusting components are installed on the inner side of a pair of the convex drainage pipes respectively; The buffer adjusting component comprises an inner inflatable rubber tube, a pair of horn type connecting rubber tubes, three inflatable liquid capsules, a hydraulic tank, a hydraulic electric push rod, a hydraulic extrusion plate and a multi-channel valve; Three inflatable liquid capsules are installed on the inner side of the convex drainage pipe, the inner inflatable rubber tube and a pair of the horn type connecting rubber tubes are installed on three inflatable liquid capsules respectively, and a pair of the horn type connecting rubber tubes are connected on both sides of the inner inflatable rubber tube respectively, the hydraulic electric push rod is installed on the inner side of the hydraulic tank, the hydraulic extrusion plate is installed on the pushing end of the hydraulic electric push rod, and the multi-channel valve is connected to three inflatable liquid capsules and the hydraulic tank.
2. A high pressure resistant type of progressing cavity flow meter according to claim 1, wherein, The buffer component comprises a buffer ring, a horn type buffer rubber ring, an inner tooth groove ring, a pair of buffer ring magnets, a conical shunt and a telescopic limiting shaft; The buffer ring and the inner tooth groove ring are installed on the inner side of the convex drainage pipe, the horn type buffer rubber ring is installed on the buffer ring, the conical shunt is movably inserted between the buffer ring and the inner tooth groove ring, a pair of the buffer ring magnets are installed on the inner tooth groove ring and the conical shunt respectively, and the telescopic limiting shaft is inserted into the conical shunt.
3. A high pressure resistant type of progressing cavity flow meter according to claim 2, wherein, The inner side of a pair of the convex drainage pipes is respectively provided with a pressure sensor.
4. A high pressure resistant type of progressing cavity flow meter according to claim 3, wherein, The inner side of a pair of the convex drainage pipes is respectively provided with a spiral guide vane.
5. A high pressure resistant type progressing vortex flowmeter according to claim 4, wherein A pair of the inner tooth groove rings are respectively provided with an auxiliary ball.
6. A high pressure resistant type progressing vortex flowmeter according to claim 5, wherein The inner side of a pair of the convex drainage pipes is respectively provided with a pair of flow sensors.