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

Abstract

The embodiment of the application discloses a kind of fluid measurement pipeline structures, fluid measurement device and fluid measurement system.The fluid measurement pipeline structure includes the axis direction of the two ends of measurement pipe section respectively being provided with first installation groove and second installation groove, first installation groove and second installation groove are used to install transducer, first installation groove is communicated with the first end of measurement pipe section, second installation groove is communicated with the second end of measurement pipe section;First communication pipe section and second communication pipe section are respectively communicated with the position of measurement pipe section axis direction close to its two ends, the axis of first communication pipe section and the axis of measurement pipe section intersect, the axis of second communication pipe section and the axis of measurement pipe section intersect.In this way, ultrasonic signal directly along the axis direction of measurement pipe section is propagated between two transducers, can avoid the obstruction of fluid due to setting reflection structure, reduce the pressure loss of fluid, reduce the complexity of fluid flow field, to further improve the stability and measurement precision of measurement.

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] Due to space limitations, transducers in small-diameter ultrasonic water meters are typically placed in parallel. The transmission and reception of ultrasonic waves are achieved by setting up two reflective panels. These reflective panels usually utilize a reduced-diameter pipe section and are installed inside the main measuring pipeline. The complex structure of the reduced-diameter pipe section increases the complexity and assembly difficulty of the entire measuring device, as well as the manufacturing difficulty and cost. The complex structure of the reduced-diameter pipe section also obstructs water flow, resulting in water pressure loss and increasing the complexity of the water flow field, thereby reducing stability and measurement accuracy. Furthermore, since the reflective panels are placed in the middle of the measuring pipeline through the reduced-diameter pipe section, the measuring pipeline is easily blocked by foreign objects, which is not conducive to the widespread application of ultrasonic water meters. 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 complex structure, difficult manufacturing, high manufacturing cost, and poor measurement accuracy and stability of fluid measurement devices, which are not conducive to the promotion and application of ultrasonic water meters.

[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 connecting pipe section, and second connecting 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 connecting pipe section and the second connecting pipe section are respectively connected to the two ends of the measuring pipe section along the axial direction. The axis of the first connecting pipe section intersects the axis of the measuring pipe section, and the axis of the second connecting pipe section intersects the axis of the measuring pipe section. The first connecting pipe section is used to connect the upstream fluid pipeline of the fluid measurement system, and the second connecting pipe section is used to connect the downstream fluid pipeline of the fluid measurement system.

[0010] The measuring pipe section, the first connecting pipe section, and the second connecting pipe section constitute an integral pipe section structure.

[0011] Optionally, the fluid measurement pipeline structure further includes a first seal and a second seal;

[0012] The first sealing element is disposed at the bottom of the first mounting groove and is used to seal the gap between the transducer and the first mounting groove;

[0013] The second seal is disposed at the bottom of the second mounting groove and is used to seal the gap between the transducer and the second mounting groove.

[0014] Optionally, the fluid measurement pipeline structure further includes a first cover plate and a second cover plate;

[0015] The first cover plate covers the opening of the first mounting groove, and the first cover plate and the first mounting groove together form a first sealed cavity. The second cover plate covers the opening of the second mounting groove, and the second cover plate and the second mounting groove together form a second sealed cavity. Both the first sealed space and the second sealed space are used to seal and install the transducer.

[0016] Optionally, the first cover plate is detachably connected to the opening of the first mounting groove, and the second cover plate is detachably connected to the opening of the second mounting groove.

[0017] Optionally, a third sealing element is provided at the opening of the first cover plate and the first mounting groove, and a fourth sealing element is provided at the opening of the second cover plate and the second mounting groove.

[0018] Optionally, the third seal includes a first sealing portion and a first pressing portion, and the fourth seal includes a second sealing portion and a second pressing portion;

[0019] The first sealing part is connected to the surface of the first cover plate facing the first mounting groove, and the first pressing part is embedded in the first mounting groove and abuts against the surface of the transducer installed in the first mounting groove.

[0020] The second sealing part is connected to the surface of the second cover plate facing the second mounting groove, and the second pressing part is embedded in the second mounting groove and abuts against the surface of the transducer installed in the second mounting groove.

[0021] Optionally, the first seal at least partially covers the transducer installed in the first mounting groove, and the second seal at least partially covers the transducer installed in the second mounting groove.

[0022] Optionally, the fluid measurement piping structure further includes at least one of an upstream straight pipe section and a downstream straight pipe section;

[0023] The upstream straight pipe section connects to the first connecting pipe section and is located on the side of the first connecting pipe section away from the measuring pipe section, and the axis of the first connecting pipe section is parallel to the axis of the measuring pipe section;

[0024] The downstream straight pipe section connects to the second connecting pipe section and is located on the side of the second connecting pipe section away from the measuring pipe section, with the axis of the second connecting pipe section being parallel to the axis of the measuring pipe section.

[0025] Optionally, the flow area of ​​the measuring pipe section is less than or equal to the flow area of ​​any one of the first connecting pipe section, the second connecting pipe section, the upstream straight pipe section, and the downstream straight pipe section.

[0026] Optionally, the flow area of ​​the measuring pipe section, the flow area of ​​the first connecting pipe section, and the flow area of ​​the second connecting pipe section are equal.

[0027] Optionally, the flow area of ​​the measuring pipe section, the flow area of ​​the first connecting pipe section, the flow area of ​​the second connecting pipe section, the flow area of ​​the upstream straight pipe section, and the flow area of ​​the downstream straight pipe section are all equal.

[0028] Optionally, the flow area of ​​the measuring pipe section, the flow area of ​​the first connecting pipe section, the flow area of ​​the second connecting pipe section, the flow area of ​​the upstream straight pipe section, and the flow area of ​​the downstream straight pipe section are all smaller than the first flow area, where the first flow area is the flow area of ​​the main pipe assembled with the fluid measuring pipe 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 connecting pipe section, and the second transfer pipe section is connected to the end of the downstream straight pipe section away from the second connecting pipe section.

[0031] Optionally, the fluid measurement pipeline structure further includes a first adapter panel and a second adapter panel;

[0032] The first transfer pipe section is connected to the end of the upstream straight pipe section away from the first connecting pipe section via the first transfer panel, and the second transfer pipe section is connected to the end of the downstream straight pipe section away from the second connecting pipe section via the second transfer panel.

[0033] Optionally, the cross-sections of the measuring pipe section, the first connecting pipe section, and the second connecting pipe section are all rectangular, or the cross-sections of the measuring pipe section, the first connecting pipe section, and the second connecting pipe section are all circular.

[0034] Optionally, the cross-sections of the upstream straight pipe section and the downstream straight pipe section are both rectangular, or the cross-sections of the upstream straight pipe section and the downstream straight pipe section are both circular.

[0035] Optionally, the fluid measurement pipeline structure further includes a control valve, which is installed in the downstream straight pipe section and is used to control the flow state of the downstream straight pipe section.

[0036] Optionally, the measuring pipe section, the first connecting pipe section, the second connecting pipe section, the upstream straight pipe section, and the downstream straight pipe section are integrally formed.

[0037] 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;

[0038] 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.

[0039] 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;

[0040] The main pipeline and the first connecting pipe section of the fluid measuring device are connected.

[0041] 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 reduced diameter pipe section required to support the reflective panel 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 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 structures.

[0042] Furthermore, since the first and second connecting pipe sections are respectively connected to the ends of the measuring pipe section along its axial direction, and the axes of the first and second connecting pipe sections intersect, the first connecting pipe section is used to connect the upstream fluid pipeline of the fluid measurement system, and the second connecting pipe section is used to connect the downstream fluid pipeline or fluid outflow component of the fluid measurement system. Therefore, during the design and fabrication of the fluid measurement pipeline structure, the flow area of ​​the pipe sections can be controlled by design. That is, the flow area between the first, second, and measuring pipe sections can be controlled by design, thereby increasing the fluid velocity in the measuring pipe section and improving the measurement accuracy of the fluid measurement device. At the same time, the measuring pipe section, the first connecting pipe section, and the second connecting pipe section form an integral pipe structure, thereby reducing the processing and fabrication difficulty of the fluid measurement pipeline structure and saving production costs. Attached Figure Description

[0043] 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.

[0044] Figure 1 This is a front view of a fluid measurement pipeline structure provided in an embodiment of this application;

[0045] Figure 2 This is a vertical cross-sectional plan view of a fluid measurement pipeline structure provided in an embodiment of this application;

[0046] Figure 3 This is a top view of a fluid measurement pipeline structure provided in an embodiment of this application;

[0047] Figure 4 This is one of the side views of a fluid measurement pipeline structure provided in an embodiment of this application;

[0048] Figure 5 This is a second side view of a fluid measurement pipeline structure provided in an embodiment of this application;

[0049] Figure 6 This is a front view of another fluid measurement pipeline structure provided in an embodiment of this application;

[0050] Figure 7 This is a vertical cross-sectional plan view of another fluid measurement pipeline structure provided in this application embodiment;

[0051] Figure 8 This is a top view of another fluid measurement pipeline structure provided in an embodiment of this application;

[0052] Figure 9 This is a side view of another fluid measurement pipeline structure provided in an embodiment of this application;

[0053] Figure 10 This is one of the partial assembly schematic diagrams of the fluid measurement pipeline provided in the embodiments of this application;

[0054] Figure 11 This is the second schematic diagram of a partial assembly of the fluid measurement pipeline provided in the embodiments of this application;

[0055] Figure 12 This is a schematic diagram of the structure of the fluid measuring device provided in the embodiments of this application.

[0056] Figure 13 This is a schematic diagram of the fluid measurement system provided in an embodiment of this application.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1: Fluid measurement pipeline structure; 11: Measurement pipe section; 111: First mounting groove; 112: Second mounting groove; 12: First connecting pipe section; 13: Second connecting pipe section; 14: First sealing element; 15: Second sealing element; 16: First cover plate; 17: Second cover plate; 18: Third sealing element; 181: First sealing part; 182: First pressure-resistant part; 19: Fourth sealing element; 191: Second sealing part; 192: Second pressure-resistant part; 101: Upstream straight pipe section; 102: Downstream straight pipe section; 103: First transfer pipe section; 104: Second transfer pipe section; 105: First transfer panel; 106: Second transfer panel; 107: Control valve; 2: Main pipeline; 3: First transducer; 4: Second transducer; 5: Control board; 10: Fluid measurement device. Detailed Implementation

[0059] 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.

[0060] 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.

[0061] 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.

[0062] Please refer to Figures 1 to 5 This application provides a fluid measurement pipeline structure, which includes:

[0063] Measuring pipe section 11, first connecting pipe section 12, and second connecting pipe section 13.

[0064] 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.

[0065] The first connecting pipe section 12 and the second connecting pipe section 13 are respectively connected to the two ends of the measuring pipe section 11 along its axial direction. The axis of the first connecting pipe section 12 intersects the axis of the measuring pipe section 11, and the axis of the second connecting pipe section 13 intersects the axis of the measuring pipe section 11. The first connecting pipe section 12 is used to connect the upstream fluid pipeline of the fluid measurement system, and the second connecting pipe section 13 is used to connect the downstream fluid pipeline or fluid outflow component of the fluid measurement system.

[0066] The measuring pipe section 11, the first connecting pipe section 12, and the second connecting pipe section 13 constitute an integral pipe section structure.

[0067] 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 reduced diameter pipe section required to support 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 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.

[0068] Furthermore, since the first connecting pipe section 12 and the second connecting pipe section 13 are respectively connected to the two ends of the measuring pipe section 11 along its axial direction, the axis of the first connecting pipe section 12 intersects the axis of the measuring pipe section 11, and the axis of the second connecting pipe section 13 intersects the axis of the measuring pipe section 11. The first connecting pipe section 12 is used to connect the upstream fluid pipeline of the fluid measurement system, and the second connecting pipe section 13 is used to connect the downstream fluid pipeline or fluid outflow component of the fluid measurement system. Therefore, in the process of fabricating and designing the fluid measurement pipeline structure, the flow area of ​​the pipe sections can be controlled by design. That is, the flow area between the first connecting pipe section 12, the second connecting pipe section 13 and the measuring pipe section 11 can be controlled by design, so as to increase the fluid flow velocity in the measuring pipe section 11, thereby improving the measurement accuracy of the fluid measurement device. At the same time, the downstream fluid, the measuring pipe section 11, the first connecting pipe section 12 and the second connecting pipe section 13 form an integral pipe section structure, thereby reducing the processing and fabrication difficulty of the fluid measurement pipeline structure and saving the production cost of the fluid measurement pipeline structure.

[0069] In the above embodiments, the measuring pipe segment 11, the first connecting pipe segment 12, and the second connecting pipe segment 13 can be integrally formed or integrally formed by welding multiple tubular structures. This application does not limit this. The first connecting pipe segment 12 and the second connecting pipe segment 13 are connected to the measuring pipe segment 11. The first connecting pipe segment 12 is located at one end near the axial direction of the measuring pipe segment 11, and the second connecting pipe segment 13 is located at the other end near the axial direction of the measuring pipe segment 11. The angle between the axis of the first connecting pipe segment 12 and the axis of the measuring pipe segment 11 can be a right angle, an obtuse angle, or an acute angle, and the angle between the axis of the second connecting pipe segment 13 and the axis of the measuring pipe segment 11 can also be a right angle, an obtuse angle, or an acute angle. This application does not limit this either. In some embodiments, the first connecting pipe segment 12 can serve as a fluid inlet channel, the second connecting pipe segment 13 can serve as a fluid outlet channel, and the measuring pipe segment 11 can form a closed fluid passage and fluid measuring pipe segment for fluid flow, ultrasonic wave propagation, and ultrasonic wave propagation time measurement.

[0070] 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 external structures 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 12As 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 time difference (i.e., the time difference) of ultrasonic signal propagation 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 12 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 12 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 12 As shown by arrow P2 in the diagram.

[0071] In some embodiments, such as Figure 10 and Figure 11 As shown, the fluid measurement pipeline structure also includes a first seal 14 and a second seal 15. The first seal 14 is disposed at the bottom of the first mounting groove 111 to seal the gap between the transducer and the first mounting groove 111. The second seal 15 is disposed at the bottom of the second mounting groove 112 to seal the gap between the transducer and the second mounting groove 112.

[0072] In this embodiment, since the first sealing element 14 is disposed at the bottom of the first mounting groove 111 and the second sealing element 15 is disposed at the bottom of the second mounting groove 112, the first sealing element 14 can seal the gap between the transducer and the first mounting groove 111, and the second sealing element 15 can seal the gap between the transducer and the second mounting groove 112. This prevents external moisture from entering the interior of the measuring tube section 11 through the gap between the transducer and the first mounting groove 111 or the gap between the transducer and the second mounting groove 112. Simultaneously, it prevents fluid inside the measuring tube section 11 from flowing out through the gap between the transducer and the first mounting groove 111 or the gap between the transducer and the second mounting groove 112, ensuring the airtightness of the measuring tube section 11 and the transducer after installation. It should be noted that the first sealing element 14 and the second sealing element 15 can be rubber materials such as nitrile rubber, EPDM rubber, silicone rubber, and fluororubber, or they can be plastic and polymer materials such as polytetrafluoroethylene and polyurethane. The first sealing element 14 and the second sealing element 15 can be structures such as sealing rings, sealing cylinders, and frame-shaped sealing elements, and the embodiments of this application do not limit them.

[0073] In some embodiments, such as Figure 10 and Figure 11 As shown, the fluid measurement pipeline structure also includes a first cover plate 16 and a second cover plate 17. The first cover plate 16 covers the opening of the first mounting groove 111, and the first cover plate 16 and the first mounting groove 111 enclose a first sealed cavity. The second cover plate 17 covers the opening of the second mounting groove 112, and the second cover plate 17 and the second mounting groove 112 enclose a second sealed cavity. Both the first sealed space and the second sealed space are used to seal and install the transducer.

[0074] In this embodiment, since the first mounting groove 111 and the second mounting groove 112 are located at both ends of the axial direction of the measuring pipe section 11, with the first mounting groove 111 connected to the first end of the measuring pipe section 11 and the second mounting groove 112 connected to the second end of the measuring pipe section 11, external water vapor can easily enter the interior of the measuring pipe section 11 through the first mounting groove 111 and the second mounting groove 112. Furthermore, the first mounting groove 111 and the second mounting groove 112 are also located in the flow direction of the fluid in the measuring pipe section 11. Therefore, it is necessary to further ensure the sealing between the first mounting groove 111 and the measuring pipe section 11, and between the second mounting groove 112 and the measuring pipe section 11. Based on this, by covering the opening of the first mounting groove 111 with the first cover plate 16, the first cover plate 16 and the first mounting groove 111 enclose a first sealed cavity. By covering the opening of the second mounting groove 112 with the second cover plate 17, the second cover plate 17 and the second mounting groove 112 enclose a second sealed cavity. Therefore, the sealing performance of the measuring pipe section 11 can be avoided due to the setting of the first mounting groove 111 and the second mounting groove 112. It can also be ensured that after the transducer is installed, external water vapor can be prevented from entering the measuring pipe section 11, or the fluid in the measuring pipe section 11 can be prevented from flowing out from the first mounting groove 111 or the second mounting groove 112.

[0075] In some embodiments, the first cover plate 16 is detachably connected to the opening of the first mounting groove 111, and the second cover plate 17 is detachably connected to the opening of the second mounting groove 112.

[0076] In this embodiment, since the first cover plate 16 is detachably connected to the opening of the first mounting groove 111 and the second cover plate 17 is detachably connected to the opening of the second mounting groove 112, it is convenient to install and remove the transducer from the first mounting groove 111 and the second mounting groove 112, and different types of transducers can be replaced based on actual applications. It should be noted that the first cover plate 16 can be detachably connected to the opening of the first mounting groove 111 by means of threaded connection, snap-fit, or riveting, and the second cover plate 17 can be detachably connected to the opening of the second mounting groove 112 by means of threaded connection, snap-fit, or riveting. This embodiment of the application does not limit this.

[0077] In some embodiments, a third seal 18 is provided at the opening of the first cover plate 16 and the first mounting groove 111, and a fourth seal 19 is provided at the opening of the second cover plate 17 and the second mounting groove 112.

[0078] In this embodiment, since the first cover plate 16 and the first mounting groove 111 are provided with a third sealing element 18, and the second cover plate 17 and the second mounting groove 112 are provided with a fourth sealing element 19, the gap between the first mounting groove 111 and the first cover plate 16 can be sealed by the third sealing element 18, and the gap between the second mounting groove 112 and the second cover plate 17 can be sealed by the fourth sealing element 19, thereby further ensuring the sealing performance of the measuring pipe section 11.

[0079] In some embodiments, such as Figure 10 and Figure 11 As shown, the third seal 18 includes a first sealing portion 181 and a first pressing portion 182, and the fourth seal 19 includes a second sealing portion 191 and a second pressing portion 192. The first sealing portion 181 is connected to the surface of the first cover plate 16 facing the first mounting groove 111. The first pressing portion 182 is embedded in the first mounting groove 111 and abuts against the surface of the transducer installed in the first mounting groove 111. The second sealing portion 191 is connected to the surface of the second cover plate 17 facing the second mounting groove 112. The second pressing portion 192 is embedded in the second mounting groove 112 and abuts against the surface of the transducer installed in the second mounting groove 112.

[0080] In this embodiment, since the first sealing part 181 is connected to the surface of the first cover plate 16 facing the first mounting groove 111, and the first pressing part 182 is embedded in the first mounting groove 111 and abuts against the surface of the transducer installed in the first mounting groove 111, the gap between the first mounting groove 111 and the first cover plate 16 can be sealed by the first sealing part 181. Because the first pressing part 182 is in direct contact with the transducer installed in the first mounting groove 111, the first pressing part 182 can position the transducer in the first mounting groove 111, ensuring the stability of the transducer's position. Furthermore, the first pressing part 182 and the first sealing part 181 prevent the first cover plate 16 and the first mounting groove 111 from directly contacting the transducer during installation, thus preventing damage to the transducer during installation. Meanwhile, the first pressure part 182 can provide a buffer for the transducer installed in the first mounting groove 111, so as to avoid damage to the transducer when the assembled fluid measuring pipe section 11 falls, and extend the service life of the transducer installed in the first mounting groove 111.

[0081] Similarly, since the second sealing part 191 is connected to the surface of the second cover plate 17 facing the second mounting groove 112, and the second pressing part 192 is embedded in the second mounting groove 112 and abuts against the surface of the transducer installed in the second mounting groove 112, the gap between the second mounting groove 112 and the second cover plate 17 can be sealed by the second sealing part 191. Because the second pressing part 192 is in direct contact with the transducer installed in the second mounting groove 112, the second pressing part 192 can position the transducer in the second mounting groove 112, ensuring the stability of the transducer's position. Furthermore, the second pressing part 192 and the second sealing part 191 prevent the second cover plate 17 and the second mounting groove 112 from directly contacting the transducer during installation, thus preventing damage to the transducer during installation. Meanwhile, the second pressure section 192 can provide a buffer for the transducer installed in the second mounting groove 112, preventing the fluid measurement pipe section 11 after assembly from being damaged when it falls, and extending the service life of the transducer.

[0082] In this embodiment, the first seal 14 at least partially covers the transducer installed in the first mounting groove 111, and the second seal 15 at least partially covers the transducer installed in the second mounting groove 112.

[0083] In this embodiment, since the first sealing member 14 at least partially covers the transducer installed in the first mounting groove 111 and the second sealing member 15 at least partially covers the transducer installed in the second mounting groove 112, the first sealing member 14 can seal the gap between the transducer and the first mounting groove 111, and the second sealing member 15 can seal the gap between the transducer and the second mounting groove 112, thus ensuring the sealing performance of the measuring tube section 11. Furthermore, the first sealing member 14 can provide positioning and protection for the transducer installed in the first mounting groove 111, and the second sealing member 15 can provide positioning and protection for the transducer installed in the second mounting groove 112. The first sealing member 14 can compensate for the installation tolerance between the transducer and the first mounting groove 111, and the second sealing member 15 can compensate for the installation tolerance between the transducer and the second mounting groove 112, facilitating the installation and fixation of the transducer in the first mounting groove 111 and the second mounting groove 112. Meanwhile, when the type of transducer changes, the transducer can be installed and fixed in the first mounting groove 111 and the second mounting groove 112 by replacing the first seal 14 and the second seal 15 that are compatible with it, thus avoiding the increase in usage costs by directly replacing the fluid measurement pipeline structure.

[0084] In an exemplary embodiment, the first seal 14 and the second seal 15 include a connected first sealing ring and a first sealing cylinder, the second seal 15 includes a second sealing ring and a second sealing cylinder, the transducer includes a first part and a second part, the volume of the first part being larger than that of the second part, the first mounting groove 111 includes a communicating first mounting cavity and a second mounting cavity, the inner diameter of the first mounting cavity being larger than that of the second mounting cavity, the second mounting groove 112 includes a communicating third mounting cavity and a fourth mounting cavity, the inner diameter of the third mounting cavity being larger than that of the fourth mounting cavity. During installation, the first part is installed in the first and third mounting cavities, and the second part is installed in the second and fourth mounting cavities, such that the first sealing ring is fitted onto the second part and located at the shoulder of the first and second mounting cavities, the first sealing cylinder is fitted onto the first part and located on the inner wall of the first part and the first mounting cavity, such that the second sealing ring is fitted onto the second part and located at the shoulder of the third and fourth mounting cavities, and the second sealing cylinder is fitted onto the first part and located on the inner wall of the first part and the third mounting cavity.

[0085] In some embodiments, the fluid measurement pipeline structure further includes at least one of an upstream straight pipe section 101 and a downstream straight pipe section 102. The upstream straight pipe section 101 is connected to a first connecting pipe section 12 and is located on the side of the first connecting pipe section 12 away from the measuring pipe section 11. The axis of the first connecting pipe section 12 is parallel to the axis of the measuring pipe section 11. The downstream straight pipe section 102 is connected to a second connecting pipe section 13 and is located on the side of the second connecting pipe section 13 away from the measuring pipe section 11. The axis of the second connecting pipe section 13 is parallel to the axis of the measuring pipe section 11.

[0086] In this embodiment, the fluid measurement pipeline structure may include an upstream straight pipe section 101, a downstream straight pipe section 102, or both. This application does not limit the specific type of straight pipe section. Since the upstream straight pipe section 101 connects to the first connecting pipe section 12 and is located on the side of the first connecting pipe section 12 away from the measuring pipe section 11, and the axis of the upstream straight pipe section 101 is parallel to the axis of the measuring pipe section 11, and the downstream straight pipe section 102 connects to the second connecting pipe section 13 and is located on the side of the second connecting pipe section 13 away from the measuring pipe section 11, and the axis of the downstream straight pipe section 102 is parallel to the axis of the measuring pipe section 11, and since the measuring device is typically installed in the middle of a straight pipeline, the upstream straight pipe section 101 and the downstream straight pipe section 102 can extend the overall length of the fluid measurement pipeline structure while simplifying installation and adaptation in the direct pipeline.

[0087] 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 connecting pipe section 12, the second connecting pipe section 13, the upstream straight pipe section 101, and the downstream straight pipe section 102.

[0088] In this embodiment, since the flow area of ​​the measuring pipe section 11 is less than or equal to the flow area of ​​any one of the following: the first connecting pipe section 12, the second connecting pipe section 13, the upstream straight pipe section 101, and the downstream straight pipe section 102, 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.

[0089] In some embodiments, the flow area of ​​the measuring pipe section 11, the flow area of ​​the first connecting pipe section 12, and the flow area of ​​the second connecting pipe section 13 are equal.

[0090] In this embodiment, since the flow areas of the measuring pipe section 11, the first connecting pipe section 12, and the second connecting pipe section 13 are equal, and given that the flow area of ​​the measuring pipe section 11 is the smallest in the entire fluid measurement pipeline structure, the flow areas of the first connecting pipe section 12, the second connecting pipe section 13, and the measuring pipe section 11 can all be minimized. This reduces eddy current or turbulence interference at points where the flow area changes, and also increases the overall flow velocity of the fluid in the first connecting pipe section 12, the measuring pipe section 11, and the second connecting pipe section 13, 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. Similarly, with the flow areas of the first connecting pipe section 12, the second connecting pipe section 13, and the measuring pipe section 11 all at their minimum values, the volume of the fluid measurement pipeline structure can be further reduced, lowering costs while improving the adaptability of the fluid measurement pipeline structure.

[0091] In some embodiments, the flow area of ​​the measuring pipe section 11, the flow area of ​​the first connecting pipe section 12, the flow area of ​​the second connecting pipe section 13, the flow area of ​​the upstream straight pipe section 101, and the flow area of ​​the downstream straight pipe section 102 are all equal.

[0092] In this embodiment, since the flow areas of the measuring pipe section 11, the first connecting pipe section 12, the second connecting pipe section 13, the upstream straight pipe section 101, and the downstream straight pipe section 102 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 of ​​the pipe section 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 the downstream and upstream propagation of ultrasonic waves, and thus improving the measurement accuracy of fluid velocity and flow rate.

[0093] In some embodiments, the flow area of ​​the measuring pipe section 11, the flow area of ​​the first connecting pipe section 12, the flow area of ​​the second connecting pipe section 13, the flow area of ​​the upstream straight pipe section 101, and the flow area of ​​the downstream straight pipe section 102 are all smaller than the first flow area, which is the flow area of ​​the main pipe 2 assembled with the fluid measuring pipe structure.

[0094] In this embodiment, since the flow area of ​​the measuring pipe section 11, the flow area of ​​the first connecting pipe section 12, the flow area of ​​the second connecting pipe section 13, the flow area of ​​the upstream straight pipe section 101, and the flow area of ​​the downstream straight pipe section 102 are all smaller than the first flow area, which is the flow area of ​​the main pipe 2 assembled with the fluid measuring pipe structure, it can ensure that the flow velocity of the entire fluid in the measuring pipe structure is maximized, thereby increasing the time difference between the ultrasonic wave propagation in the downstream and upstream directions, and thus improving the measurement accuracy of fluid velocity and flow rate.

[0095] In some embodiments, the fluid measurement pipeline structure further includes a first transfer pipe section 103 and a second transfer pipe section 104, wherein the first transfer pipe section 103 is connected to the end of the upstream straight pipe section 101 away from the first connecting pipe section 12, and the second transfer pipe section 104 is connected to the end of the downstream straight pipe section 102 away from the second connecting pipe section 13.

[0096] In this embodiment, since the first transfer pipe section 103 is connected to the end of the upstream straight pipe section 101 furthest from the first connecting pipe section 12, and the second transfer pipe section 104 is connected to the end of the downstream straight pipe section 102 furthest from the second connecting pipe section 13, the first transfer pipe section 103 can be connected to the main pipe 2, and the second transfer pipe section 104 can be connected to the fluid outlet, thus facilitating the installation, deployment, and application of the entire fluid measurement pipeline structure. It should be noted that the first transfer pipe section 103 and the upstream straight pipe section 101 can be connected by flange connection, welding, threaded connection, etc., and the second transfer pipe section 104 and the downstream straight pipe section 102 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 105 and a second adapter panel 106. The first adapter pipe section 103 is connected to the end of the upstream straight pipe section 101 away from the first connecting pipe section 12 through the first adapter panel 105, and the second adapter pipe section 104 is connected to the end of the downstream straight pipe section 102 away from the second connecting pipe section 13 through the second adapter panel 106.

[0098] In this embodiment, since the first transfer pipe section 103 is connected to the end of the upstream straight pipe section 101 away from the first connecting pipe section 12 through the first transfer panel 105, and the second transfer pipe section 104 is connected to the end of the downstream straight pipe section 102 away from the second connecting pipe section 13 through the second transfer panel 106, the connection between the first transfer pipe section 103 and the upstream straight pipe section 101 with different flow areas can be realized through the first transfer panel 105, and the connection between the second transfer pipe section 104 and the downstream straight pipe section 102 with different flow areas can be realized through the second transfer panel 106, thereby facilitating the installation and adaptation of the fluid measuring device.

[0099] In some embodiments, the cross-sections of the measuring pipe section 11, the first connecting pipe section 12, and the second connecting pipe section 13 are all rectangular, or the cross-sections of the measuring pipe section 11, the first connecting pipe section 12, and the second connecting pipe section 13 are all circular.

[0100] In this embodiment, when the cross-sections of the measuring pipe section 11, the first connecting pipe section 12, and the second connecting pipe section 13 are all rectangular, it ensures that the flow shape of each pipe section in the fluid measurement pipeline structure is the same, thereby avoiding eddy currents or turbulence interference caused by fluid flowing through pipe sections with different flow shapes. Furthermore, having the same shape for each pipe section facilitates parameter control, reducing both manufacturing errors and the processing cost of the fluid measurement pipeline structure. Conversely, when the cross-sections of the measuring pipe section 11, the first connecting pipe section 12, and the second connecting pipe section 13 are all circular, it also ensures that the flow shape of each pipe section in the fluid measurement pipeline structure is the same, thus avoiding eddy currents or turbulence interference caused by fluid flowing through pipe sections with different flow shapes. This also facilitates parameter control, reducing both manufacturing errors and the processing cost of the fluid measurement pipeline structure.

[0101] In some embodiments, the cross-sections of the upstream straight pipe section 101 and the downstream straight pipe section 102 are both rectangular, or the cross-sections of the upstream straight pipe section 101 and the downstream straight pipe section 102 are both circular.

[0102] In this embodiment, since the cross-sections of the upstream straight pipe section 101 and the downstream straight pipe section 102 are both rectangular, or both are circular, the flow shape of each pipe section in the fluid measurement pipeline structure can be regular, facilitating the processing and manufacturing of the fluid measurement pipeline. It should be noted that the cross-sections of the measuring pipe section 11, the first connecting pipe section 12, the second connecting pipe section 13, the upstream straight pipe section 101, and the downstream straight pipe section 102 can have the same shape, and the cross-sections of the first connecting pipe section 12, the second connecting pipe section 13, the upstream straight pipe section 101, and the downstream straight pipe section 102 can also have the same shape. This embodiment does not limit this. When the cross-sections of the measuring pipe section 11, the first connecting pipe section 12, and the second connecting pipe section 13 are all circular, and the cross-sections of the upstream straight pipe section 101 and the downstream straight pipe section 102 are all rectangular, or when the cross-sections of the measuring pipe section 11, the first connecting pipe section 12, and the second connecting pipe section 13 are all rectangular, and the cross-sections of the upstream straight pipe section 101 and the downstream straight pipe section 102 are all circular, the connection can be made through a pipe section adapter or other connection structure, or it can be directly welded. This application embodiment does not limit this.

[0103] In some embodiments, the fluid measurement pipeline structure further includes a control valve 107, which is installed in the downstream straight pipe section 102 and is used to control the flow state of the downstream straight pipe section 102.

[0104] In this embodiment, the control valve 107 can be any type of valve structure, such as a ball valve, needle valve, or butterfly valve. Thus, when the control valve 107 is installed in the downstream straight pipe section 102, the flow state of the fluid in the downstream straight pipe section 102 can be controlled by the control valve 107, 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.

[0105] In some embodiments, the measuring pipe section 11, the first connecting pipe section 12, the second connecting pipe section 13, the upstream straight pipe section 101, and the downstream straight pipe section 102 are integrally formed.

[0106] In this embodiment, since the measuring pipe section 11, the first connecting pipe section 12, the second connecting pipe section 13, the upstream straight pipe section 101, and the downstream straight pipe section 102 are integrally formed, the single-piece forming process reduces assembly errors, thereby improving the accuracy and sealing of the entire fluid measuring pipeline structure.

[0107] As can be seen from the above embodiments, in this application embodiment, since a first mounting groove 111 and a second mounting groove 112 are respectively provided at both ends of the axial direction of the measuring pipe section 11, 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 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 reduced diameter pipe section required to support 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 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.

[0108] Furthermore, since the first connecting pipe section 12 and the second connecting pipe section 13 are respectively connected to the two ends of the measuring pipe section 11 along its axial direction, the axis of the first connecting pipe section 12 intersects the axis of the measuring pipe section 11, and the axis of the second connecting pipe section 13 intersects the axis of the measuring pipe section 11. The first connecting pipe section 12 is used to connect the upstream fluid pipeline of the fluid measurement system, and the second connecting pipe section 13 is used to connect the downstream fluid pipeline or fluid outflow component of the fluid measurement system. Therefore, in the process of fabricating and designing the fluid measurement pipeline structure, the flow area of ​​the pipe sections can be controlled by design. That is, the flow area between the first connecting pipe section 12, the second connecting pipe section 13 and the measuring pipe section 11 can be controlled by design, so as to increase the fluid flow velocity in the measuring pipe section 11, thereby improving the measurement accuracy of the fluid measurement device. At the same time, the downstream fluid, the measuring pipe section 11, the first connecting pipe section 12 and the second connecting pipe section 13 form an integral pipe section structure, thereby reducing the processing and fabrication difficulty of the fluid measurement pipeline structure and saving the production cost of the fluid measurement pipeline structure.

[0109] In some embodiments, such as Figure 12 and Figure 13As shown, this application embodiment also provides a fluid measuring device, which includes a first transducer 3, a second transducer 4, a control board 5, and a fluid measuring pipeline structure according to any embodiment of the first aspect. The first transducer 3 is installed in a first mounting slot 111, and the second transducer 4 is installed in a second mounting slot 112. The first transducer 3 and the second transducer 4 are electrically connected to the control board 5 respectively.

[0110] In this embodiment, since the fluid measuring device includes the main pipe 2 and the fluid measuring pipe structure of any of the above embodiments, the structure of the fluid measuring device can be simplified by reducing the complexity of the fluid measuring pipe structure, thereby reducing the manufacturing cost of the fluid measuring device. At the same time, since the fluid measuring device can reduce obstruction to the fluid, reduce pressure loss, and reduce the complexity of the fluid flow field, the stability and accuracy of the fluid measuring device can be improved. This also facilitates the widespread application of the fluid measuring device and increases its applicable range.

[0111] 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 time difference (i.e., time difference) of ultrasonic signal propagation in the downstream and upstream directions, 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 flow rate of the water currently flowing through the fluid measurement pipe can be calculated.

[0112] In some embodiments, this application also provides a fluid measurement system, which includes a main pipe 2 and a fluid measurement device in a second aspect, wherein the main pipe 2 and the fluid measurement device are connected by a first connecting pipe segment 12.

[0113] 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 a fluid measuring device. Thus, the main pipe 2 introduces the fluid into the measuring pipe of the fluid measuring device, allowing for fluid measurement. Given the advantages of the fluid measuring device—simplified structure, reduced manufacturing cost, and improved measurement accuracy—it not only facilitates installation within the fluid measuring system, enabling its use in various environments, but also allows the fluid measuring system to retain these advantages. In an exemplary embodiment, the fluid measuring device can be installed between the main pipe 2 and the outlet component. The outlet component can include any structure such as a faucet, spout, distributor, or nozzle; this embodiment does not limit the specific type. This facilitates the measurement of the water flow rate through the outlet component. The improved structure of the fluid measuring device reduces its cost, enhances the stability and accuracy of fluid flow measurement, and broadens the application scenarios of the ultrasonic fluid flow measuring device, thereby promoting its widespread application.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] 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 connecting pipe section, and second connecting 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 connecting pipe section and the second connecting pipe section are respectively connected to the two ends of the measuring pipe section along the axial direction. The axis of the first connecting pipe section intersects the axis of the measuring pipe section, and the axis of the second connecting pipe section intersects the axis of the measuring pipe section. The first connecting pipe section is used to connect the upstream fluid pipeline of the fluid measurement system, and the second connecting pipe section is used to connect the downstream fluid pipeline of the fluid measurement system. The measuring pipe section, the first connecting pipe section, and the second connecting pipe section constitute an integral pipe section structure.

2. The fluid measurement pipeline structure according to claim 1, characterized in that, The fluid measurement pipeline structure also includes a first seal and a second seal; The first sealing element is disposed at the bottom of the first mounting groove and is used to seal the gap between the transducer and the first mounting groove; The second seal is disposed at the bottom of the second mounting groove and is used to seal the gap between the transducer and the second mounting groove.

3. The fluid measurement pipeline structure according to claim 2, characterized in that, The fluid measurement pipeline structure also includes a first cover plate and a second cover plate; The first cover plate covers the opening of the first mounting groove, and the first cover plate and the first mounting groove together form a first sealed cavity. The second cover plate covers the opening of the second mounting groove, and the second cover plate and the second mounting groove together form a second sealed cavity. Both the first sealed space and the second sealed space are used to seal and install the transducer.

4. The fluid measurement pipeline structure according to claim 3, characterized in that, The first cover plate is detachably connected to the opening of the first mounting groove, and the second cover plate is detachably connected to the opening of the second mounting groove.

5. The fluid measurement pipeline structure according to claim 4, characterized in that, A third sealing element is provided at the opening of the first cover plate and the first mounting groove, and a fourth sealing element is provided at the opening of the second cover plate and the second mounting groove.

6. The fluid measurement pipeline structure according to claim 5, characterized in that, The third sealing element includes a first sealing portion and a first pressing portion, and the fourth sealing element includes a second sealing portion and a second pressing portion; The first sealing part is connected to the surface of the first cover plate facing the first mounting groove, and the first pressing part is embedded in the first mounting groove and abuts against the surface of the transducer installed in the first mounting groove. The second sealing part is connected to the surface of the second cover plate facing the second mounting groove, and the second pressing part is embedded in the second mounting groove and abuts against the surface of the transducer installed in the second mounting groove.

7. The fluid measurement pipeline structure according to claim 2, characterized in that, The first seal at least partially covers the transducer installed in the first mounting groove, and the second seal at least partially covers the transducer installed in the second mounting groove.

8. 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 connecting pipe section and is located on the side of the first connecting pipe section away from the measuring pipe section, and the axis of the first connecting pipe section is parallel to the axis of the measuring pipe section; The downstream straight pipe section connects to the second connecting pipe section and is located on the side of the second connecting pipe section away from the measuring pipe section, with the axis of the second connecting pipe section being parallel to the axis of the measuring pipe section.

9. The fluid measurement pipeline structure according to claim 8, characterized in that, The flow area of ​​the measuring pipe section is less than or equal to the flow area of ​​any one of the following: the flow area of ​​the first connecting pipe section, the flow area of ​​the second connecting pipe section, the flow area of ​​the upstream straight pipe section, and the flow area of ​​the downstream straight pipe section.

10. The fluid measurement pipeline structure according to claim 9, characterized in that, The flow area of ​​the measuring pipe section, the flow area of ​​the first connecting pipe section, and the flow area of ​​the second connecting pipe section are equal.

11. The fluid measurement pipeline structure according to claim 10, characterized in that, The flow area of ​​the measuring pipe section, the flow area of ​​the first connecting pipe section, the flow area of ​​the second connecting pipe section, the flow area of ​​the upstream straight pipe section, and the flow area of ​​the downstream straight pipe section are all equal.

12. The fluid measurement pipeline structure according to claim 8, characterized in that, The flow area of ​​the measuring pipe section, the flow area of ​​the first connecting pipe section, the flow area of ​​the second connecting pipe section, the flow area of ​​the upstream straight pipe section, and the flow area of ​​the downstream straight pipe section are all smaller than the first flow area, which is the flow area of ​​the main pipe assembled with the fluid measuring pipe structure.

13. The fluid measurement pipeline structure according to claim 8, 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 connecting pipe section, and the second transfer pipe section is connected to the end of the downstream straight pipe section away from the second connecting pipe section.

14. The fluid measurement pipeline structure according to claim 13, characterized in that, The fluid measurement pipeline structure also includes a first adapter panel and a second adapter panel; The first transfer pipe section is connected to the end of the upstream straight pipe section away from the first connecting pipe section via the first transfer panel, and the second transfer pipe section is connected to the end of the downstream straight pipe section away from the second connecting pipe section via the second transfer panel.

15. The fluid measurement pipeline structure according to claim 8, characterized in that, The cross-sections of the measuring pipe section, the first connecting pipe section, and the second connecting pipe section are all rectangular, or the cross-sections of the measuring pipe section, the first connecting pipe section, and the second connecting pipe section are all circular.

16. The fluid measurement pipeline structure according to claim 15, characterized in that, The cross-sections of the upstream straight pipe section and the downstream straight pipe section are both rectangular, or the cross-sections of the upstream straight pipe section and the downstream straight pipe section are both circular.

17. The fluid measurement pipeline structure according to claim 8, characterized in that, The fluid measurement pipeline structure also includes a control valve, which is installed in the downstream straight pipe section and is used to control the flow state of the downstream straight pipe section.

18. The fluid measurement pipeline structure according to claim 8, characterized in that, The measuring pipe section, the first connecting pipe section, the second connecting pipe section, the upstream straight pipe section, and the downstream straight pipe section are integrally formed.

19. 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 18; 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.

20. A fluid measurement system, characterized in that, The fluid measurement system includes the main piping and the fluid measurement device as described in claim 19; The main pipeline and the first connecting pipe section of the fluid measuring device are connected.

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