Fluid measurement conduit structure, fluid measurement device, and fluid measurement system

Abstract

The embodiment of the application discloses a kind of fluid measurement pipeline structure, fluid measurement device and fluid measurement system.The axis direction of the measurement pipe section of the fluid measurement pipeline structure includes the first installation groove and the second installation groove respectively arranged in two ends, the first installation groove and the second installation groove are used to install transducer, fluid flow direction in the first transition pipe section and the flow direction of fluid in measurement pipe section intersect, fluid flow direction in the second transition pipe section and the flow direction of fluid in measurement pipe section intersect, at least including a first drag reduction pipe section in the first transition pipe section, first drag reduction pipe section is used to reduce the fluid flow resistance in the first transition pipe section, first transition pipe section and second transition pipe section are fixedly connected with support beam.Such, not only can reduce the flow rate variation caused by pressure mutation, make fluid flow rate distribution more uniform, to improve the final measurement precision, and can guarantee the structural stability and integrity of fluid measurement pipeline structure.

Description

Technical Field

[0001] This utility model belongs to the field of fluid detection technology, specifically relating to a fluid measurement pipeline structure, a fluid measurement device, and a fluid measurement system. Background Technology

[0002] With the development of technology, the application of ultrasonic time-of-flight measurement technology for fluid velocity and flow rate measurement is becoming increasingly widespread.

[0003] Taking a small-diameter ultrasonic water meter as an example, to measure water flow velocity and flow rate, a pair of ultrasonic transducers are typically placed at opposite ends of the measuring pipe near the meter. One transducer acts as the ultrasonic excitation transmitter, while the other acts as the receiving transducer, and vice versa. When the ultrasonic signal propagates in the direction of water flow, its speed increases and its propagation time shortens; when it propagates against the direction of water flow, its speed decreases and its propagation time increases. By accurately measuring the time difference (i.e., time difference) between the propagation of the ultrasonic signal in the forward and reverse directions, the water flow velocity can be calculated. Furthermore, by considering the geometry of the measuring pipe and parameters such as water temperature and pressure, the flow rate of the water currently flowing through the measuring pipe can be calculated.

[0004] However, to achieve cavitation in the flow channel and simplification of the ultrasonic channel in the measurement pipeline, existing fluid measurement pipeline structures include multiple pipe sections, some of which have right-angle bends at their connections. This causes a "water wall effect" at the bends in the flow channel, increasing resistance. Consequently, sudden pressure and velocity changes easily occur at the connections between measurement pipe sections and between individual pipe sections, leading to pressure loss and uneven fluid velocity distribution, thus affecting the accuracy of flow measurement. Furthermore, in production testing, to improve testing efficiency, multiple measuring devices are often connected in series to form a single measurement flow channel, enabling simultaneous testing of multiple connected measuring devices. Measuring devices using the current fluid measurement pipeline structure are prone to deformation due to external pressure, making the fluid measurement pipeline susceptible to damage. Utility Model Content

[0005] This application discloses a fluid measurement pipeline structure, a fluid measurement device, and a fluid measurement system, aiming to solve the problems of uneven pressure distribution, uneven flow velocity distribution, and unstable fluid measurement pipeline structure that is easily damaged.

[0006] Firstly, to address the aforementioned problems, embodiments of this application provide a fluid measurement pipeline structure, the fluid measurement pipeline structure comprising:

[0007] Measurement pipe section, first transition pipe section, and second transition pipe section;

[0008] The measuring tube segment has a first mounting groove and a second mounting groove at both ends along its axial direction. Both the first mounting groove and the second mounting groove are used to install transducers. The first mounting groove is connected to the first end of the measuring tube segment, and the second mounting groove is connected to the second end of the measuring tube segment. The propagation direction of the ultrasonic signal emitted by the transducer installed in the first mounting groove and the propagation direction of the ultrasonic signal emitted by the transducer installed in the second mounting groove are both consistent with the extension direction of the axis of the measuring tube segment.

[0009] The first transition pipe section and the second transition pipe section are respectively connected to the two ends of the measuring pipe section along its axial direction. The fluid flow direction in the first transition pipe section intersects with the fluid flow direction in the measuring pipe section, and the fluid flow direction in the second transition pipe section intersects with the fluid flow direction in the measuring pipe section. The first transition pipe section is used to connect to the upstream fluid pipeline of the fluid measurement system. The first transition pipe section includes at least a first drag-reducing pipe section, which is used to reduce the fluid flow resistance in the first transition pipe section. The second transition pipe section is used to connect to the downstream fluid pipeline of the fluid measurement system.

[0010] A supporting crossbeam is fixedly connected between the first transition pipe section and the second transition pipe section.

[0011] Optionally, the first drag-reducing pipe section includes a first arc-shaped pipe section and a second arc-shaped pipe section;

[0012] One end of the first arc-shaped pipe segment is connected to the first end of the second arc-shaped pipe segment, and the second end of the second arc-shaped pipe segment is connected to a position near the end of the measuring pipe segment along the axial direction;

[0013] Wherein, the arc direction of the first arc-shaped pipe segment is opposite to that of the second arc-shaped pipe segment, the first arc-shaped pipe segment of the first transition pipe segment bends toward the direction closer to the second transition pipe segment, and the second arc-shaped pipe segment of the first transition pipe segment bends toward the direction away from the second transition pipe segment.

[0014] Optionally, the connection between the second transition pipe section and the measuring pipe section has a first arc-shaped chamfer structure or a first inclined chamfer structure to reduce the fluid flow resistance when fluid flows into the second transition pipe section.

[0015] Optionally, the second transition section includes at least one second drag-reducing section, which is used to reduce the fluid pressure in the second transition section.

[0016] Optionally, the second transition pipe section includes a third arc-shaped pipe section and a fourth arc-shaped pipe section;

[0017] One end of the third arc-shaped pipe segment is connected to the first end of the fourth arc-shaped pipe segment, and the second end of the fourth arc-shaped pipe segment is connected to a position near the end of the measuring pipe segment along the axial direction.

[0018] The arc direction of the third arc-shaped pipe segment is opposite to that of the fourth arc-shaped pipe segment. The third arc-shaped pipe segment of the second transition pipe segment bends towards the first transition pipe segment, and the fourth arc-shaped pipe segment of the second transition pipe segment bends away from the first transition pipe segment.

[0019] Optionally, one end of the supporting beam abuts against the first arc-shaped pipe section, and the other end of the supporting beam abuts against the third arc-shaped pipe section.

[0020] Optionally, the connection between the first arc-shaped pipe segment and the supporting crossbeam is located at the arc-shaped protrusion of the first arc-shaped pipe segment, and the connection between the third arc-shaped pipe segment and the supporting crossbeam is located at the arc-shaped protrusion of the third arc-shaped pipe segment.

[0021] Optionally, the second transition section includes at least one second drag-reducing section;

[0022] The first drag-reducing pipe section includes a first inclined straight pipe, and the second drag-reducing pipe section includes a second inclined straight pipe. The first inclined straight pipe and the second inclined straight pipe are respectively connected to the two ends of the measuring pipe section along the axial direction. The angle between the axis of the first inclined straight pipe and the axis of the measuring pipe section is an obtuse angle, and the angle between the axis of the second inclined straight pipe and the axis of the measuring pipe section is an obtuse angle.

[0023] Optionally, the second transition section includes at least one second drag-reducing section;

[0024] The first drag-reducing pipe section is an arc-shaped pipe section, and the second drag-reducing pipe section is an inclined straight pipe, or the first drag-reducing pipe section is an inclined straight pipe, and the second drag-reducing pipe section is an arc-shaped pipe section, wherein the angle between the axis of the inclined straight pipe and the axis of the measuring pipe section is an obtuse angle.

[0025] Optionally, the fluid measurement piping structure further includes at least one of an upstream straight pipe section and a downstream straight pipe section;

[0026] The upstream straight pipe section connects to the first transition pipe section and is located on the side of the first transition pipe section away from the second transition pipe section. The axis of the upstream straight pipe section is parallel to the axis of the measuring pipe section.

[0027] The downstream straight pipe section connects to the second transition pipe section and is located on the side of the second transition pipe section away from the first transition pipe section. The axis of the downstream straight pipe section is parallel to the axis of the measuring pipe section.

[0028] Optionally, the connection between the second transition pipe section and the downstream straight pipe section has a second arc-shaped chamfer structure or a second inclined chamfer structure.

[0029] Optionally, the fluid measurement pipeline structure further includes a first transfer pipe section and a second transfer pipe section;

[0030] The first transfer pipe section is connected to the end of the upstream straight pipe section away from the first transition pipe section, and the second transfer pipe section is connected to the end of the downstream straight pipe section away from the second transition pipe section.

[0031] Optionally, the fluid measurement pipeline structure further includes a first transfer pipe section and a second transfer pipe section;

[0032] The first transfer pipe section and the first transition pipe section are connected at the ends away from the measuring pipe section, and the second transfer pipe section and the second transition pipe section are connected at the ends away from the measuring pipe section.

[0033] Secondly, this utility model embodiment also provides a fluid measuring device, which includes a first transducer, a second transducer, a control board, and the fluid measuring pipeline structure described in any embodiment of the first aspect;

[0034] The first transducer is installed in the first mounting slot, and the second transducer is installed in the second mounting slot. The first transducer and the second transducer are electrically connected to the control board respectively.

[0035] Thirdly, embodiments of this application also provide a fluid measurement system, the fluid measurement system comprising a main pipeline and the fluid measurement device described in the second aspect;

[0036] The main pipeline and the first transition pipe section of the fluid measuring device are connected.

[0037] According to the embodiments of this application, since a first mounting groove and a second mounting groove are respectively provided at both ends of the axial direction of the measuring pipe section, both the first mounting groove and the second mounting groove are used to install transducers. The first mounting groove is connected to the first end of the measuring pipe section and the second mounting groove is connected to the second end of the measuring pipe section. The propagation direction of the ultrasonic signal emitted by the transducer installed in the first mounting groove and the propagation direction of the ultrasonic signal emitted by the transducer installed in the second mounting groove are both consistent with the extension direction of the axial direction of the measuring pipe section. Therefore, the measuring pipe section can simultaneously form a measuring channel for fluid flow and a channel for ultrasonic wave propagation. Compared with the measuring pipe of the traditional measuring device, the reflective panel required for ultrasonic wave transmission and reception propagation and the complex support and reduced diameter pipe section required for supporting the reflective panel required by the traditional measuring device are eliminated. The structure of the fluid measuring pipe structure of this utility model is greatly simplified, thereby reducing the manufacturing difficulty and manufacturing cost of the fluid measuring pipe structure. At the same time, it allows the ultrasonic signal to propagate directly along the axis of the measuring pipe section between the two transducers, which avoids the obstruction of the fluid by the complex support and reduced diameter pipe section required for setting up the reflection structure and supporting the reflection plate, reduces the pressure loss of the fluid, reduces the complexity of the fluid flow field, and thus improves the stability and accuracy of the measurement. On the other hand, it can also prevent foreign objects from blocking the fluid flow channel, which facilitates the promotion and application of fluid measurement pipe structure.

[0038] Furthermore, since the first transition pipe section is used to connect the upstream fluid pipeline of the fluid measurement system, and includes at least a first drag-reducing pipe section to reduce the fluid flow resistance in the first transition pipe section, and the second transition pipe section is used to connect the downstream fluid pipeline of the fluid measurement system, the first drag-reducing pipe section can reduce the resistance to fluid flow in the first transition pipe section, reducing the velocity loss caused by flow resistance, making the fluid velocity distribution more uniform, thereby improving the final measurement accuracy. Also, since a supporting beam is fixedly connected between the first and second transition pipe sections, the supporting beam can provide support for the first and second transition pipe sections in the extension direction of the supporting beam, preventing deformation between the first and second transition pipe sections and ensuring the structural stability of the fluid measurement pipeline structure. In summary, the fluid measurement pipeline structure provided in this application embodiment, while satisfying the requirements of simplified structure and reduced manufacturing difficulty and cost, not only can it reduce the velocity unevenness and velocity loss caused by pressure, making the fluid velocity distribution more uniform and thus improving the final measurement accuracy, but it can also ensure the structural stability of the fluid measurement pipeline structure and extend its service life. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is one of the vertical cross-sectional plan views of a fluid measurement pipeline structure provided in the embodiments of this application;

[0041] Figure 2 This is one of the side views of a fluid measurement pipeline structure provided in an embodiment of this application;

[0042] Figure 3 This is a top view of a fluid measurement pipeline structure provided in an embodiment of this application;

[0043] Figure 4 This is a second vertical cross-sectional plan view of a fluid measurement pipeline structure provided in the embodiments of this application;

[0044] Figure 5 This is a second side view of a fluid measurement pipeline structure provided in an embodiment of this application;

[0045] Figure 6 This is the third vertical sectional plan view of a fluid measurement pipeline structure provided in the embodiments of this application;

[0046] Figure 7 This is a third side view of a fluid measurement pipeline structure provided in an embodiment of this application;

[0047] Figure 8 This is the fourth vertical sectional plan view of a fluid measurement pipeline structure provided in the embodiments of this application;

[0048] Figure 9 This is the fourth side view of a fluid measurement pipeline structure provided in the embodiments of this application;

[0049] Figure 10 This is the fifth vertical sectional plan view of a fluid measurement pipeline structure provided in the embodiments of this application;

[0050] Figure 11 This is the fifth side view of a fluid measurement pipeline structure provided in the embodiments of this application;

[0051] Figure 12 This is the sixth vertical cross-sectional plan view of a fluid measurement pipeline structure provided in the embodiments of this application;

[0052] Figure 13This is the sixth side view of a fluid measurement pipeline structure provided in the embodiments of this application;

[0053] Figure 14 This is a schematic diagram of the structure of the fluid measuring device provided in the embodiments of this application.

[0054] Figure 15 This is a schematic diagram of the fluid measurement system provided in an embodiment of this application.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1: Fluid measurement pipeline structure; 11: Measurement pipe section; 111: First mounting groove; 112: Second mounting groove; 12: First transition pipe section; 121: First arc-shaped pipe section; 122: Second arc-shaped pipe section; 123: First inclined straight pipe; 13: Second transition pipe section; 131: Third arc-shaped pipe section; 132: Fourth arc-shaped pipe section; 133: Second inclined straight pipe; 14: Support beam; 15: First inclined chamfer structure; 16: Second inclined chamfer structure; 17: Upstream straight pipe section; 18: Downstream straight pipe section; 19: First transfer pipe section; 101: Second transfer pipe section; 102: First transfer panel; 103: Second transfer panel; 104: Control valve; 2: Main pipeline; 3: First transducer; 4: Second transducer; 5: Control board; 10: Fluid measurement device. Detailed Implementation

[0057] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0058] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] Please refer to Figures 1 to 13 This application provides a fluid measurement pipeline structure, which includes:

[0061] Measurement pipe section 11, first transition pipe section 12, and second transition pipe section 13.

[0062] A first mounting groove 111 and a second mounting groove 112 are respectively provided at both ends of the measuring tube section 11 along the axial direction. Both the first mounting groove 111 and the second mounting groove 112 are used to install transducers. The first mounting groove 111 is connected to the first end of the measuring tube section 11, and the second mounting groove 112 is connected to the second end of the measuring tube section 11. The propagation direction of the ultrasonic signal emitted by the transducer installed in the first mounting groove 111 and the propagation direction of the ultrasonic signal emitted by the transducer installed in the second mounting groove 112 are both consistent with the extension direction of the axial direction of the measuring tube section 11.

[0063] The first transition pipe section 12 and the second transition pipe section 13 are respectively connected to the ends of the measuring pipe section 11 along its axial direction. The fluid flow direction in the first transition pipe section 12 intersects with the fluid flow direction in the measuring pipe section 11, and the fluid flow direction in the second transition pipe section 13 intersects with the fluid flow direction in the measuring pipe section 11. The first transition pipe section 12 is used to connect the upstream fluid pipeline of the fluid measurement system. The first transition pipe section 12 includes at least a first drag-reducing pipe section, which is used to reduce the fluid flow resistance in the first transition pipe section 12. The second transition pipe section 13 is used to connect the downstream fluid pipeline of the fluid measurement system.

[0064] A supporting crossbeam 14 is fixedly connected between the first transition pipe section 12 and the second transition pipe section 13.

[0065] As can be seen from the above embodiments, in this application embodiment, since the first mounting groove 111 and the second mounting groove 112 are respectively provided at both ends of the axial direction of the measuring pipe section 11, the first mounting groove 111 and the second mounting groove 112 are both used to install transducers. The first mounting groove 111 is connected to the first end of the measuring pipe section 11, and the second mounting groove 112 is connected to the second end of the measuring pipe section 11. The propagation direction of the ultrasonic signal emitted by the transducer installed in the first mounting groove 111 and the propagation direction of the ultrasonic signal emitted by the transducer installed in the second mounting groove 112 are both consistent with the extension direction of the axial direction of the measuring pipe section 11. Therefore, the measuring pipe section 11 can simultaneously form a measuring channel for fluid flow and a channel for ultrasonic wave propagation. Compared with the measuring pipe of the traditional measuring device, the reflective panel required for ultrasonic wave transmission and reception propagation and the complex support and reduced diameter pipe section required for supporting the reflective panel required by the traditional measuring device are eliminated. The structure of the fluid measuring pipe structure of this utility model is greatly simplified, thereby reducing the manufacturing difficulty and manufacturing cost of the fluid measuring pipe structure. At the same time, it allows the ultrasonic signal to propagate directly along the axis of the measuring pipe section 11 between the two transducers, which avoids the obstruction of the fluid by the complex support and reduced diameter pipe section required for setting up the reflection structure and supporting the reflection plate, reduces the pressure loss of the fluid, reduces the complexity of the fluid flow field, and thus improves the stability and accuracy of the measurement. On the other hand, it can also prevent foreign objects from blocking the measuring pipe for fluid flow, which facilitates the promotion and application of fluid measurement pipe structure.

[0066] Furthermore, since the first transition section 12 is used to connect the upstream fluid pipeline of the fluid measurement system, and includes at least a first drag-reducing section to reduce the fluid flow resistance in the first transition section 12, and the second transition section 13 is used to connect the downstream fluid pipeline of the fluid measurement system, the first drag-reducing section can reduce the resistance to fluid flow in the first transition section 12, reducing velocity loss caused by flow resistance and making the fluid velocity distribution more uniform, thereby improving the final measurement accuracy. Also, since a supporting beam 14 is fixedly connected between the first transition section 12 and the second transition section 13, the supporting beam 14 can provide support for the first transition section 12 and the second transition section 13 in the extension direction of the supporting beam 14, preventing displacement of the first transition section 12 and the second transition section 13 due to external forces and ensuring the structural stability of the fluid measurement pipeline structure. In summary, the fluid measurement pipeline structure provided in this application embodiment, while satisfying the requirements of simplified structure and reduced manufacturing difficulty and cost, can not only reduce the flow resistance and velocity loss caused by the bends in the pipeline, making the fluid velocity distribution more uniform and thus improving the final measurement accuracy, but also ensure the structural stability of the fluid measurement pipeline structure and extend its service life.

[0067] The first mounting groove 111 and the second mounting groove 112 can be a part of the upper end of the measuring pipe section 11 along the axial direction, or they can be an external structure installed on the upper end of the measuring pipe section 11 along the axial direction. This application embodiment does not limit this. Specifically, as shown... Figure 14 As shown, when the fluid measurement pipe structure in the above embodiment is applied to a fluid measurement device for measuring water flow rate, the transducer installed in the first mounting slot 111 can serve as an excitation transmitting transducer, and the transducer in the second mounting slot 112 can serve as a receiving response transducer. Conversely, the transducer installed in the second mounting slot 112 can serve as an excitation transmitting transducer, and the transducer in the first mounting slot 111 can serve as a receiving response transducer. When the ultrasonic signal propagates in the direction of water flow, its speed increases and its propagation time shortens; when it propagates against the direction of water flow, its speed decreases and its propagation time lengthens. By accurately measuring the propagation time and time difference (i.e., time difference) of the ultrasonic signal in the direction of flow and against the flow, the water flow velocity can be calculated. Then, by combining the geometric structure of the fluid measurement pipe with parameters such as water temperature and water pressure, the current water flow rate through the fluid measurement pipe can be calculated. The flow direction of the fluid in the fluid measurement pipe structure is as follows: Figure 14 As shown by arrow W in the diagram, the direction in which the ultrasonic wave propagates along the water flow direction in the fluid measurement pipe structure is as follows: Figure 14 As shown by arrow P1, the direction of ultrasonic wave propagation against the water flow direction in the fluid measurement pipe structure is as follows: Figure 14 As shown by arrow P2 in the diagram.

[0068] Furthermore, the measuring pipe section 11, the first transition pipe section 12, and the second transition pipe section 13 in the above embodiments can be integrally formed structures or integral structures welded from multiple tubular structures; this application does not limit this. The first transition pipe section 12 and the second transition pipe section 13 are connected to the measuring pipe section 11, with the first transition pipe section 12 located at one end near the axial direction of the measuring pipe section 11, and the second transition pipe section 13 located at the other end near the axial direction of the measuring pipe section 11. The first transition pipe section 12 can serve as a fluid inlet channel, the second transition pipe section 13 can serve as a fluid outlet channel, and the measuring pipe section 11 can form a closed fluid passage and a fluid measuring pipe section 11, used for fluid flow, ultrasonic wave propagation, and measurement of ultrasonic wave propagation time.

[0069] The first transition pipe section 12 includes at least one first drag-reducing pipe section. The first drag-reducing pipe section can be a pipe section with an arc or an S-shaped pipe, or a pipe section with an obtuse angle to the measuring pipe, or a pipe section with other drag-reducing pipe structures. The entire first transition pipe section 12 can be the first drag-reducing pipe section, or a portion of the first transition pipe section 12 can be the first drag-reducing pipe section. This application embodiment does not limit this.

[0070] Furthermore, the supporting beam 14 fixedly connected between the first transition pipe section 12 and the second transition pipe section 13 can be at least one of the following structures: hollow pipe structure, solid rod structure, column structure, etc., and this application embodiment does not limit this.

[0071] In some embodiments, such as Figure 1 and Figure 2 As shown, the first drag-reducing pipe section includes a first arc-shaped pipe section 121 and a second arc-shaped pipe section 122. One end of the first arc-shaped pipe section 121 is connected to the first end of the second arc-shaped pipe section 122, and the second end of the second arc-shaped pipe section 122 is connected to a position near the end of the measuring pipe section 11 along its axial direction. The arc direction of the first arc-shaped pipe section 121 is opposite to that of the second arc-shaped pipe section 122. The first arc-shaped pipe section 121 of the first transition pipe section 12 bends towards the direction closer to the second transition pipe section 13, and the second arc-shaped pipe section 122 of the first transition pipe section 12 bends away from the second transition pipe section 13.

[0072] In this embodiment, since the first drag-reducing pipe section includes a first arc-shaped pipe section 121 and a second arc-shaped pipe section 122, one end of the first arc-shaped pipe section 121 and the first end of the second arc-shaped pipe section 122 are connected, and the second end of the second arc-shaped pipe section 122 is connected to a position near the end in the axial direction of the measuring pipe section 11, the first transition pipe section 12 is composed of the first arc-shaped pipe section 121 and the second arc-shaped pipe section 122. In this way, when the fluid flows through the first arc-shaped pipe section 121 and the second arc-shaped pipe section 122, the arc-shaped inner wall can reduce the flow resistance of the fluid, reduce the water flow velocity attenuation rate, and reduce the pressure loss in the vortex region. Meanwhile, since the arc direction of the first arc-shaped pipe section 121 is opposite to that of the second arc-shaped pipe section 122, the first arc-shaped pipe section 121 of the first transition pipe section 12 bends towards the direction closer to the second transition pipe section 13, and the second arc-shaped pipe section 122 of the first transition pipe section 12 bends away from the second transition pipe section 13. Therefore, a large arc bend can be formed at the connection between the first arc-shaped pipe section 121 and the upstream fluid inflow pipe, as well as at the connection between the second arc-shaped pipe section 122 and the measuring pipe section 11. In this way, the turning radius can be optimized by the large arc bend to reduce fluid resistance, reduce water flow velocity loss, and make the fluid flow velocity distribution more uniform.

[0073] In some embodiments, such as Figure 4 and Figure 5 As shown, the connection between the second transition pipe section 13 and the measuring pipe section 11 has a first arc-shaped chamfer structure or a first inclined chamfer structure 15 to reduce the fluid flow resistance when fluid flows into the second transition pipe section 13.

[0074] In this embodiment, since the connecting part between the second transition pipe section 13 and the measuring pipe section 11 has a first arc-shaped chamfer structure or a first inclined chamfer structure 15, an arc-shaped corner structure can be formed at the connection part between the measuring pipe section 11 and the second transition pipe section 13 through the first arc-shaped chamfer structure or the first inclined chamfer structure 15. This arc-shaped corner structure reduces the fluid flow resistance when the fluid enters the second transition pipe section 13, and further reduces the flow velocity loss caused by pressure.

[0075] In some embodiments, the second transition section 13 includes at least one second drag-reducing section, which is used to reduce fluid flow resistance in the second transition section 13.

[0076] In this embodiment, since the second transition pipe section 13 includes at least one second drag-reducing pipe section, the resistance to fluid flow in the second transition pipe section 13 can be reduced by the second drag-reducing pipe section, thereby reducing the velocity loss caused by flow resistance, making the fluid velocity distribution more uniform, and further improving the final measurement accuracy. It should be noted that the second drag-reducing pipe section can be a pipe section with an arc or an S-shape, or a pipe section forming an obtuse angle with the measuring pipe, or a pipe section with other drag-reducing pipe structures. The entire second transition pipe section 13 can be a second drag-reducing pipe section, or only a portion of the second transition pipe section 13 can be a second drag-reducing pipe section; this embodiment does not limit this.

[0077] In some embodiments, the second transition pipe section 13 includes a third arc-shaped pipe section 131 and a fourth arc-shaped pipe section 132. One end of the third arc-shaped pipe section 131 is connected to the first end of the fourth arc-shaped pipe section 132, and the second end of the fourth arc-shaped pipe section 132 is connected to a position near the end in the axial direction of the measuring pipe section 11. The arc direction of the third arc-shaped pipe section 131 is opposite to that of the fourth arc-shaped pipe section 132. The third arc-shaped pipe section 131 of the second transition pipe section 13 bends towards the direction closer to the first transition pipe section 12, while the fourth arc-shaped pipe section 132 of the second transition pipe section 13 bends away from the first transition pipe section 12.

[0078] In this embodiment, since the second transition pipe section 13 includes a third arc-shaped pipe section 131 and a fourth arc-shaped pipe section 132, one end of the third arc-shaped pipe section 131 is connected to the first end of the fourth arc-shaped pipe section 132, and the second end of the fourth arc-shaped pipe section 132 is connected to a position near the end in the axial direction of the measuring pipe section 11, the second transition pipe section 13 is composed of the third arc-shaped pipe section 131 and the fourth arc-shaped pipe section 132. In this way, when the fluid flows through the third arc-shaped pipe section 131 and the fourth arc-shaped pipe section 132, the arc-shaped inner wall can reduce the flow resistance of the fluid, reduce the loss of water flow velocity, and make the fluid flow velocity distribution more uniform. Meanwhile, since the arc direction of the third arc-shaped pipe section 131 is opposite to that of the fourth arc-shaped pipe section 132, the third arc-shaped pipe section 131 of the second transition pipe section 13 bends towards the direction closer to the first transition pipe section 12, and the fourth arc-shaped pipe section 132 of the second transition pipe section 13 bends away from the first transition pipe section 12. Therefore, a large arc bend can be formed at the connection between the third arc-shaped pipe section 131 and the downstream fluid outlet pipe, as well as at the connection between the fourth arc-shaped pipe section 132 and the measuring pipe section 11. In this way, the turning radius can be optimized by the large arc bend to reduce the flow resistance of the water flow, reduce the loss of water flow velocity, and make the fluid velocity distribution more uniform.

[0079] In some embodiments, one end of the support beam 14 abuts against the first arc-shaped pipe section 121, and the other end of the support beam 14 abuts against the third arc-shaped pipe section 131.

[0080] In this embodiment, since one end of the supporting beam 14 abuts against the first arc-shaped pipe section 121 and the other end of the supporting beam 14 abuts against the third arc-shaped pipe section 131, the displacement of the first transition pipe section 12 and the second transition pipe section 13 due to external forces is avoided, thus ensuring the structural stability of the fluid measurement pipeline structure.

[0081] In some embodiments, the connection between the first arc-shaped pipe segment 121 and the supporting beam 14 is located at the arc-shaped protrusion of the first arc-shaped pipe segment 121, and the connection between the third arc-shaped pipe segment 131 and the supporting beam 14 is located at the arc-shaped protrusion of the third arc-shaped pipe segment 131.

[0082] In this embodiment, since the connection between the first arc-shaped pipe segment 121 and the supporting crossbeam 14 is located at the arc-shaped protrusion of the first arc-shaped pipe segment 121, and the connection between the third arc-shaped pipe segment 131 and the supporting crossbeam 14 is located at the arc-shaped protrusion of the third arc-shaped pipe segment 131, on the one hand, the displacement of the first transition pipe segment 12 and the second transition pipe segment 13 due to external forces can be avoided, ensuring the structural stability of the fluid measurement pipeline structure. On the other hand, the size of the supporting crossbeam 14 in the extension direction can be reduced to the greatest extent, thereby reducing the manufacturing cost of the entire fluid measurement pipeline structure.

[0083] In some embodiments, such as Figures 10 to 13As shown, the first transition pipe section 12 includes at least one first drag-reducing pipe section, and the second transition pipe section 13 includes at least one second drag-reducing pipe section. The first drag-reducing pipe section includes a first inclined straight pipe 123, and the second drag-reducing pipe section includes a second inclined straight pipe 133. The first inclined straight pipe 123 and the second inclined straight pipe 133 are respectively connected to the measuring pipe section 11 near its two ends along the axial direction. The angle between the axis of the first inclined straight pipe 123 and the axis of the measuring pipe section 11 extending towards the second mounting groove 112 is an obtuse angle, and the angle between the axis of the second inclined straight pipe 133 and the axis of the measuring pipe section 11 extending towards the first mounting groove 111 is an obtuse angle.

[0084] In this embodiment, since the first transition pipe section 12 includes at least one first drag-reducing pipe section and the second transition pipe section 13 includes at least one second drag-reducing pipe section, the first drag-reducing pipe section includes a first inclined straight pipe 123 and the second drag-reducing pipe section includes a second inclined straight pipe 133. The first inclined straight pipe 123 and the second inclined straight pipe 133 are respectively connected to the measuring pipe section 11 near its two ends along the axial direction. The angle between the axis of the first inclined straight pipe 123 and the axis of the measuring pipe section 11 is an obtuse angle, and the angle between the axis of the second inclined straight pipe 133 and the axis of the measuring pipe section 11 is also an obtuse angle. Therefore, the corner of the fluid flow direction between the first transition pipe section 12 and the measuring pipe section 11 can be an obtuse angle bend, and the corner of the fluid flow direction between the second transition pipe section 13 and the measuring pipe section 11 can be an obtuse angle bend. This reduces the flow resistance of the fluid at the obtuse angle bend, reduces the loss of water flow velocity, and makes the fluid velocity distribution more uniform.

[0085] In some embodiments, such as Figure 6 and Figure 7 As shown, the first transition pipe section 12 includes at least one first drag-reducing pipe section, and the second transition pipe section 13 includes at least one second drag-reducing pipe section. The first drag-reducing pipe section is an arc-shaped pipe section, and the second drag-reducing pipe section is an inclined straight pipe. Alternatively, the first drag-reducing pipe section is an inclined straight pipe, and the second drag-reducing pipe section is an arc-shaped pipe section. The angle between the axis of the inclined straight pipe and the axis of the measuring pipe section 11 is an obtuse angle.

[0086] In this embodiment, when the second transition pipe section 13 includes at least one second drag-reducing pipe section, and the first drag-reducing pipe section is an arc-shaped pipe section and the second drag-reducing pipe section is an inclined straight pipe, the arc-shaped pipe section formed at the connection between the first transition pipe section 12 and the measuring pipe section 11, as well as the obtuse-angle bend formed at the bend between the measuring pipe section 11 and the second transition pipe section 13, can similarly reduce the fluid flow resistance, reduce the water flow velocity attenuation rate, and reduce the pressure loss in the vortex region. When the first drag-reducing pipe section is an inclined straight pipe and the second drag-reducing pipe section is an arc-shaped pipe section, the obtuse-angle bend formed at the bend between the measuring pipe section 11 and the first transition pipe section 12, as well as the arc-shaped pipe section formed at the connection between the second transition pipe section 13 and the measuring pipe section 11, can similarly reduce the fluid flow resistance, reduce water flow velocity loss, and make the fluid velocity distribution more uniform. It should be noted that, regardless of whether the first drag-reducing pipe section included in the first transition pipe section 12 and the second drag-reducing pipe section included in the second transition pipe section 13 are any combination of arc-shaped pipe sections and inclined straight pipes, as long as the combination can reduce the flow resistance of the fluid, it is within the protection scope of this application, and the embodiments of this application do not limit it.

[0087] In some embodiments, the fluid measurement pipeline structure further includes at least one of an upstream straight pipe section 17 and a downstream straight pipe section 18. The upstream straight pipe section 17 is connected to the first transition pipe section 12 and is located on the side of the first transition pipe section 12 away from the second transition pipe section 13. The axis of the upstream straight pipe section 17 is parallel to the axis of the measuring pipe section 11. The downstream straight pipe section 18 is connected to the second transition pipe section 13 and is located on the side of the second transition pipe section 13 away from the first transition pipe section 12. The axis of the downstream straight pipe section 18 is parallel to the axis of the measuring pipe section 11.

[0088] In this embodiment, the fluid measurement pipeline structure may include an upstream straight pipe section 17, a downstream straight pipe section 18, or both. This application does not limit the specific type of straight pipe section. Since the upstream straight pipe section 17 connects to the first transition pipe section 12 and is located on the side of the first transition pipe section 12 away from the measuring pipe section 11, and the axis of the upstream straight pipe section 17 is parallel to the axis of the measuring pipe section 11, and the downstream straight pipe section 18 connects to the second transition pipe section 13 and is located on the side of the second transition pipe section 13 away from the measuring pipe section 11, and the axis of the downstream straight pipe section 18 is parallel to the axis of the measuring pipe section 11, and since the measuring device is typically installed in the middle of the fluid flow pipeline, it can be connected to the upstream and downstream fluid flow pipelines respectively through the upstream straight pipe section 17 and the downstream straight pipe section 18, facilitating the adaptation and installation of the fluid measurement device's measuring pipeline structure to the fluid flow path.

[0089] In some embodiments, the flow area of ​​the measuring pipe section 11 is less than or equal to the flow area of ​​any one of the first transition pipe section 12, the second transition pipe section 13, the upstream straight pipe section 17, and the downstream straight pipe section 18.

[0090] In this embodiment, since the flow area of ​​the measuring pipe section 11 is smaller than the flow areas of any one of the first transition pipe section 12, the second transition pipe section 13, the upstream straight pipe section 17, and the downstream straight pipe section 18, it can be ensured that the flow area of ​​the measuring pipe section 11 is the smallest among all fluid measuring pipe structures. This increases the flow velocity of the fluid passing through the measuring pipe section 11, thereby increasing the time difference between ultrasonic wave propagation in the forward and reverse directions, and thus improving the measurement accuracy of fluid velocity and flow rate. Simultaneously, with the measuring pipe section 11 having the smallest flow area among all sections in the fluid measuring pipe structure, the volume of the fluid measuring pipe structure can be reduced while maintaining measurement accuracy. This facilitates the application of the fluid measuring pipe structure in confined spaces, improving its adaptability.

[0091] In some embodiments, the flow area of ​​the measuring pipe section 11, the flow area of ​​the first transition pipe section 12, the flow area of ​​the second transition pipe section 13, the flow area of ​​the upstream straight pipe section 17, and the flow area of ​​the downstream straight pipe section 18 are all equal.

[0092] In this embodiment, since the flow areas of the measuring pipe section 11, the first transition pipe section 12, the second transition pipe section 13, the upstream straight pipe section 17, and the downstream straight pipe section 18 are all equal, and the flow area of ​​the measuring pipe section 11 is the smallest in the entire fluid measuring pipe structure, the overall flow area of ​​the fluid measuring pipe section 11 can be reduced to a minimum. On the one hand, this can reduce the interference of eddies or turbulence generated at the point where the flow area changes, and on the other hand, it can increase the overall flow velocity of the fluid in the fluid measuring pipe section 11, thereby increasing the time difference between ultrasonic wave propagation in the downstream and upstream directions, and thus improving the measurement accuracy of fluid velocity and flow rate.

[0093] In some embodiments, such as Figure 4 As shown, the connection between the second transition pipe section 13 and the downstream straight pipe section 18 has a second arc-shaped chamfer structure or a second inclined chamfer structure 16.

[0094] In this embodiment, since the connection between the second transition pipe section 13 and the downstream straight pipe section 18 has a second arc-shaped chamfer structure or a second inclined chamfer structure 16, an arc-shaped corner structure can be formed at the connection between the downstream straight pipe section 18 and the second transition pipe section 13 through the second arc-shaped chamfer structure or the second inclined chamfer structure 16, thereby reducing the flow resistance of the fluid entering the downstream straight pipe section 18 through the arc-shaped corner structure.

[0095] In some embodiments, such as Figure 1 , Figure 4 , Figure 6 and Figure 10 As shown, the fluid measurement pipeline structure also includes a first transfer pipe section 19 and a second transfer pipe section 101. The first transfer pipe section 19 is connected to the end of the upstream straight pipe section 17 away from the first transition pipe section 12, and the second transfer pipe section 101 is connected to the end of the downstream straight pipe section 18 away from the second transition pipe section 13.

[0096] In this embodiment, the fluid measurement pipeline structure also includes a first transfer pipe section 19 and a second transfer pipe section 101. The first transfer pipe section 19 is connected to the end of the upstream straight pipe section 17 away from the first transition pipe section 12, and the second transfer pipe section 101 is connected to the end of the downstream straight pipe section 18 away from the second transition pipe section 13. Therefore, the first transfer pipe section 19 can be connected to the main pipeline 2, and the second transfer pipe section 101 can be connected to the fluid outlet, thereby facilitating the installation, deployment, and application of the entire fluid measurement pipeline structure. It should be noted that the first transfer pipe section 19 and the upstream straight pipe section 17 can be connected by flange connection, welding, threaded connection, etc., and the second transfer pipe section 101 and the downstream straight pipe section 18 can be connected by flange connection, welding, threaded connection, etc. This embodiment does not limit the connection in this way.

[0097] In some embodiments, the fluid measurement pipeline structure further includes a first adapter panel 102 and a second adapter panel 103. The first adapter pipe section 19 is connected to the end of the upstream straight pipe section 17 away from the first transition pipe section 12 through the first adapter panel 102, and the second adapter pipe section 101 is connected to the end of the downstream straight pipe section 18 away from the second transition pipe section 13 through the second adapter panel 103.

[0098] In this embodiment, since the first transfer pipe section 19 is connected to the end of the upstream straight pipe section 17 away from the first transition pipe section 12 through the first transfer panel 102, and the second transfer pipe section 101 is connected to the end of the downstream straight pipe section 18 away from the second transition pipe section 13 through the second transfer panel 103, the connection between the first transfer pipe section 19 and the upstream straight pipe section 17 with different flow areas can be realized through the first transfer panel 102, and the connection between the second transfer pipe section 101 and the downstream straight pipe section 18 with different flow areas can be realized through the second transfer panel 103, thereby facilitating the installation and adaptation of the fluid measuring device.

[0099] In some embodiments, such as Figure 12 As shown, the fluid measurement pipeline structure also includes a first transfer pipe section 19 and a second transfer pipe section 101. The first transfer pipe section 19 and the first transition pipe section 12 are connected at the ends away from the measurement pipe section 11, and the second transfer pipe section 101 and the second transition pipe section 13 are connected at the ends away from the measurement pipe section 11.

[0100] In this embodiment, the fluid measurement pipeline structure also includes a first transfer pipe section 19 and a second transfer pipe section 101. The first transfer pipe section 19 is connected to the end of the first transition pipe section 12 away from the measuring pipe section 11, and the second transfer pipe section 101 is connected to the end of the second transition pipe section 13 away from the measuring pipe section 11. Therefore, the first transfer pipe section 19 is directly connected to the first transition pipe section 12, and the second transfer pipe section 101 is directly connected to the second transition pipe section 13. This allows the first transfer pipe section 19 to be connected to the main pipeline 2, and the second transfer pipe section 101 to be connected to the fluid outlet. This facilitates the installation, deployment, and application of the entire fluid measurement pipeline structure. At the same time, it reduces the number of pipe sections included in the fluid measurement pipeline structure, making the fabrication of the entire fluid measurement pipeline structure easier and reducing fabrication costs.

[0101] It should be noted that the first transfer pipe section 19 and the first transition pipe section 12 can be connected by means of flange connection, welding, threaded connection, etc., and the second transfer pipe section 101 and the second transition pipe can be connected by means of flange connection, welding, threaded connection, etc., and this application embodiment does not limit this. It should also be noted that the first transfer pipe section 19 and the first transition pipe section 12, and the second transfer pipe section 101 and the second transition pipe end 13 can all be connected by a transition panel, and the connection method is the same as in the above embodiment, and this application embodiment does not limit this.

[0102] In some embodiments, such as Figure 8 and Figure 9 As shown, the fluid measurement pipeline structure also includes a control valve 104, which is installed in the downstream straight pipe section 18 and is used to control the flow state of the downstream straight pipe section 18.

[0103] In this embodiment, the control valve 104 can be any type of valve structure, such as a ball valve, needle valve, or butterfly valve. Thus, when the control valve 104 is installed in the downstream straight pipe section 18, the flow state of the fluid in the downstream straight pipe section 18 can be controlled by the control valve 104, thereby controlling the flow state of the fluid in the fluid measurement pipeline structure and further improving the applicability of the fluid measurement pipeline structure in applications.

[0104] As can be seen from the above embodiments, in this application embodiment, since the first mounting groove 111 and the second mounting groove 112 are respectively provided at both ends of the axial direction of the measuring pipe section 11, the first mounting groove 111 and the second mounting groove 112 are both used to install transducers. The first mounting groove 111 is connected to the first end of the measuring pipe section 11, and the second mounting groove 112 is connected to the second end of the measuring pipe section 11. The propagation direction of the ultrasonic signal emitted by the transducer installed in the first mounting groove 111 and the propagation direction of the ultrasonic signal emitted by the transducer installed in the second mounting groove 112 are both consistent with the extension direction of the axial direction of the measuring pipe section 11. Therefore, the measuring pipe section 11 can simultaneously form a measuring channel for fluid flow and a channel for ultrasonic wave propagation. Compared with the measuring pipe of the traditional measuring device, the reflective panel required for ultrasonic wave transmission and reception propagation and the complex support and reduced diameter pipe section required for supporting the reflective panel required by the traditional measuring device are eliminated. The structure of the fluid measuring pipe structure of this utility model is greatly simplified, thereby reducing the manufacturing difficulty and manufacturing cost of the fluid measuring pipe structure. At the same time, it allows the ultrasonic signal to propagate directly along the axis of the measuring pipe section 11 between the two transducers, which avoids the obstruction of the fluid by the complex support and reduced diameter pipe section required for setting up the reflection structure and supporting the reflection plate, reduces the pressure loss of the fluid, reduces the complexity of the fluid flow field, and thus improves the stability and accuracy of the measurement. On the other hand, it can also prevent foreign objects from blocking the fluid flow channel, which facilitates the promotion and application of fluid measurement pipe structure.

[0105] Furthermore, since the first transition section 12 is used to connect the upstream fluid pipeline of the fluid measurement system, and includes at least a first drag-reducing section to reduce the flow resistance of the fluid in the first transition section 12, and the second transition section 13 is used to connect the downstream fluid pipeline of the fluid measurement system, the first drag-reducing section can reduce the flow resistance of the fluid in the first transition section 12, thereby reducing the velocity loss caused by the flow resistance and making the fluid velocity distribution more uniform, thus improving the final measurement accuracy. Also, since a supporting beam 14 is fixedly connected between the first transition section 12 and the second transition section 13, the supporting beam 14 can provide support for the first transition section 12 and the second transition section 13 in the extension direction of the supporting beam 14, preventing deformation between the first transition section 12 and the second transition section 13 and ensuring the structural stability of the fluid measurement pipeline structure. In summary, the fluid measurement pipeline structure provided in this application not only reduces fluid flow resistance and velocity loss while simplifying the structure and reducing manufacturing difficulty and cost, thus making the fluid velocity distribution more uniform and improving the final measurement accuracy, but also ensures the structural stability of the fluid measurement pipeline structure and extends its service life.

[0106] In some embodiments, such as Figure 14 As shown in the figure, this application embodiment also provides a fluid measuring device 10, which includes a first transducer 3, a second transducer 4, a control board 5, and a fluid measuring pipeline structure 1 according to any embodiment of the first aspect. The first transducer 3 is installed in a first mounting groove 111, and the second transducer 4 is installed in a second mounting groove 112. The first transducer 3 and the second transducer 4 are electrically connected to the control board 5 respectively.

[0107] In this embodiment, since the fluid measuring device 10 includes the main pipe 2 and the fluid measuring pipe structure 1 of any of the above embodiments, the complexity of the fluid measuring pipe structure 1 is reduced, thus simplifying the structure of the fluid measuring device 10 and reducing its manufacturing cost. Simultaneously, because the fluid measuring device 10 reduces obstruction to fluid flow and pressure loss, resulting in a more uniform fluid velocity distribution and reduced complexity of the fluid flow field, the stability and accuracy of the fluid measuring device 10 are improved. This also facilitates the widespread application of the fluid measuring device 10 and expands its applicable range.

[0108] It should be noted that the first transducer 3 and the second transducer 4 can be any type of ultrasonic transducer, such as a piezoelectric transducer or an electromagnetic transducer. Thus, in the fluid measuring tube device of the above embodiment, when measuring water flow rate, the first transducer 3 installed in the first mounting slot 111 can act as an excitation transmitting transducer, and the second transducer 4 installed in the second mounting slot 112 can act as a receiving responding transducer. Conversely, the second transducer 4 installed in the second mounting slot 112 can act as an excitation transmitting transducer, and the first transducer 3 installed in the first mounting slot 111 can act as a receiving responding transducer. In this way, by controlling the first transducer 3 and the second transducer 4 to emit ultrasonic signals via the control board 5, the ultrasonic signal propagates faster and shorter in the direction of water flow, and slower and longer in the direction of water flow. By accurately measuring the propagation time and time difference (i.e., time difference) of ultrasonic signals in the upstream and downstream directions, the water flow velocity can be calculated. Then, by combining the geometry of the fluid measurement pipe with parameters such as water temperature and water pressure, the flow rate of the water currently flowing through the fluid measurement pipe can be calculated.

[0109] In some embodiments, this application also provides a fluid measurement system, which includes a main pipe 2 and a fluid measurement device 10 in a second aspect, wherein the main pipe 2 and the fluid measurement device 10 are connected by a first transition pipe section.

[0110] In this embodiment, the main pipe 2 serves as the primary channel for the flow of the fluid to be measured. One end of the main pipe 2 is connected to a fluid supply source, and the other end is connected to the first transition pipe section of the fluid measuring device 10. Thus, the main pipe 2 introduces the fluid into the measuring pipe of the fluid measuring device 10, enabling fluid measurement. Given that the fluid measuring device 10 possesses advantages such as simplified structure, reduced manufacturing cost, and improved measurement accuracy, it not only facilitates installation of the fluid measuring device 10 within a fluid measuring system, thus enabling its use in various environments, but also allows the fluid measuring system to also possess the advantages of simplified structure, reduced manufacturing cost, and improved measurement accuracy. In an exemplary embodiment, the fluid measuring device 10 can be installed between the main pipe 2 and the water outlet component. The water outlet component can include any structure such as a faucet, spout, distributor, or nozzle; this embodiment does not limit this. This makes it easier to measure the water output of the outlet component through the fluid measuring device 10. Due to the improved structure of the fluid measuring device 10, the cost of the fluid measuring device 10 is reduced, the stability and accuracy of fluid flow measurement are improved, and the application scenarios of the ultrasonic fluid flow measuring device are broadened, thus facilitating the promotion and application of this type of fluid measuring device 10.

[0111] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0112] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0113] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only 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 terminal device 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 terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0114] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A fluid measurement pipeline structure, characterized in that, The fluid measurement pipeline structure includes: Measurement pipe section, first transition pipe section, and second transition pipe section; The measuring tube segment has a first mounting groove and a second mounting groove at both ends along its axial direction. Both the first mounting groove and the second mounting groove are used to install transducers. The first mounting groove is connected to the first end of the measuring tube segment, and the second mounting groove is connected to the second end of the measuring tube segment. The propagation direction of the ultrasonic signal emitted by the transducer installed in the first mounting groove and the propagation direction of the ultrasonic signal emitted by the transducer installed in the second mounting groove are both consistent with the extension direction of the axis of the measuring tube segment. The first transition pipe section and the second transition pipe section are respectively connected to the two ends of the measuring pipe section along its axial direction. The fluid flow direction in the first transition pipe section intersects with the fluid flow direction in the measuring pipe section, and the fluid flow direction in the second transition pipe section intersects with the fluid flow direction in the measuring pipe section. The first transition pipe section is used to connect to the upstream fluid pipeline of the fluid measurement system. The first transition pipe section includes at least a first drag-reducing pipe section, which is used to reduce the fluid flow resistance in the first transition pipe section. The second transition pipe section is used to connect to the downstream fluid pipeline of the fluid measurement system. A supporting crossbeam is fixedly connected between the first transition pipe section and the second transition pipe section.

2. The fluid measurement pipeline structure according to claim 1, characterized in that, The first drag-reducing pipe section includes a first arc-shaped pipe section and a second arc-shaped pipe section; One end of the first arc-shaped pipe segment is connected to the first end of the second arc-shaped pipe segment, and the second end of the second arc-shaped pipe segment is connected to a position near the end of the measuring pipe segment along the axial direction; Wherein, the arc direction of the first arc-shaped pipe segment is opposite to that of the second arc-shaped pipe segment, the first arc-shaped pipe segment of the first transition pipe segment bends toward the direction closer to the second transition pipe segment, and the second arc-shaped pipe segment of the first transition pipe segment bends toward the direction away from the second transition pipe segment.

3. The fluid measurement pipeline structure according to claim 1, characterized in that, The connection between the second transition pipe section and the measuring pipe section has a first arc-shaped chamfer structure or a first inclined chamfer structure to reduce the fluid flow resistance when fluid flows into the second transition pipe section.

4. The fluid measurement pipeline structure according to claim 2, characterized in that, The second transition section includes at least one second drag-reducing section, which is used to reduce the fluid pressure in the second transition section.

5. The fluid measurement pipeline structure according to claim 4, characterized in that, The second transition pipe section includes a third arc-shaped pipe section and a fourth arc-shaped pipe section; One end of the third arc-shaped pipe segment is connected to the first end of the fourth arc-shaped pipe segment, and the second end of the fourth arc-shaped pipe segment is connected to a position near the end of the measuring pipe segment along the axial direction. The arc direction of the third arc-shaped pipe segment is opposite to that of the fourth arc-shaped pipe segment. The third arc-shaped pipe segment of the second transition pipe segment bends towards the first transition pipe segment, and the fourth arc-shaped pipe segment of the second transition pipe segment bends away from the first transition pipe segment.

6. The fluid measurement pipeline structure according to claim 5, characterized in that, One end of the supporting beam abuts against the first arc-shaped pipe section, and the other end of the supporting beam abuts against the third arc-shaped pipe section.

7. The fluid measurement pipeline structure according to claim 6, characterized in that, The connection between the first arc-shaped pipe segment and the supporting beam is located at the arc-shaped protrusion of the first arc-shaped pipe segment, and the connection between the third arc-shaped pipe segment and the supporting beam is located at the arc-shaped protrusion of the third arc-shaped pipe segment.

8. The fluid measurement pipeline structure according to claim 1, characterized in that, The second transition section includes at least one second drag-reducing section; The first drag-reducing pipe section includes a first inclined straight pipe, and the second drag-reducing pipe section includes a second inclined straight pipe. The first inclined straight pipe and the second inclined straight pipe are respectively connected to the two ends of the measuring pipe section along the axial direction. The angle between the axis of the first inclined straight pipe and the axis of the measuring pipe section is an obtuse angle, and the angle between the axis of the second inclined straight pipe and the axis of the measuring pipe section is an obtuse angle.

9. The fluid measurement pipeline structure according to claim 1, characterized in that, The second transition section includes at least one second drag-reducing section; The first drag-reducing pipe section is an arc-shaped pipe section, and the second drag-reducing pipe section is an inclined straight pipe, or the first drag-reducing pipe section is an inclined straight pipe, and the second drag-reducing pipe section is an arc-shaped pipe section, wherein the angle between the axis of the inclined straight pipe and the axis of the measuring pipe section is an obtuse angle.

10. The fluid measurement pipeline structure according to claim 1, characterized in that, The fluid measurement pipeline structure also includes at least one of an upstream straight pipe section and a downstream straight pipe section; The upstream straight pipe section connects to the first transition pipe section and is located on the side of the first transition pipe section away from the second transition pipe section. The axis of the upstream straight pipe section is parallel to the axis of the measuring pipe section. The downstream straight pipe section connects to the second transition pipe section and is located on the side of the second transition pipe section away from the first transition pipe section. The axis of the downstream straight pipe section is parallel to the axis of the measuring pipe section.

11. The fluid measurement pipeline structure according to claim 10, characterized in that, The connection between the second transition pipe section and the downstream straight pipe section has a second arc-shaped chamfer structure or a second inclined chamfer structure.

12. The fluid measurement pipeline structure according to claim 10, characterized in that, The fluid measurement pipeline structure also includes a first transfer pipe section and a second transfer pipe section. The first transfer pipe section is connected to the end of the upstream straight pipe section away from the first transition pipe section, and the second transfer pipe section is connected to the end of the downstream straight pipe section away from the second transition pipe section.

13. The fluid measurement pipeline structure according to claim 1, characterized in that, The fluid measurement pipeline structure also includes a first transfer pipe section and a second transfer pipe section. The first transfer pipe section and the first transition pipe section are connected at the ends away from the measuring pipe section, and the second transfer pipe section and the second transition pipe section are connected at the ends away from the measuring pipe section.

14. A fluid measuring device, characterized in that, The fluid measuring device includes a first transducer, a second transducer, a control board, and the fluid measuring pipeline structure according to any one of claims 1 to 13; The first transducer is installed in the first mounting slot, and the second transducer is installed in the second mounting slot. The first transducer and the second transducer are electrically connected to the control board respectively.

15. A fluid measurement system, characterized in that, The fluid measurement system includes a main pipeline and the fluid measurement device as described in claim 14; The main pipeline and the first transition pipe section of the fluid measuring device are connected.

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