Fluid measuring pipeline structure, fluid measuring device and fluid measuring system

Abstract

The embodiment of the invention discloses a fluid measurement pipeline structure, a fluid measurement device and a fluid measurement system. The fluid measuring pipeline structure comprises a measuring pipe section, a first mounting groove and a second mounting groove are formed in the two ends of the measuring pipe section in the axis direction respectively and used for mounting transducers, the first mounting groove is communicated with the first end of the measuring pipe section, and the second mounting groove is communicated with the second end of the measuring pipe section; the first communicating pipe section and the second communicating pipe section are respectively communicated with the parts close to the two ends of the measuring pipe section in the axis direction, the axis of the first communicating pipe section is intersected with the axis of the measuring pipe section, and the axis of the second communicating pipe section is intersected with the axis of the measuring pipe section. Therefore, the ultrasonic signal is directly transmitted between the two transducers along the axis direction of the measuring pipe section, the fluid can be prevented from being hindered by a reflecting structure, the pressure loss of the fluid is reduced, the complexity of a fluid flow field is reduced, and the measuring stability and the measuring precision are further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of fluid detection, and in particular relates to a fluid measurement pipeline structure, a fluid measurement device and a fluid measurement system. Background Art

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

[0003] Taking a small-diameter ultrasonic water meter as an example, to measure water velocity and flow rate, a pair of ultrasonic transducers are typically placed at either end of a measuring pipe near the meter. One transducer acts as the ultrasonic excitation transmitter, while the other acts as the receiving response transducer, and vice versa. When the ultrasonic signal propagates with the flow, its velocity increases, shortening the propagation time. When propagating against the flow, its velocity decreases, lengthening the propagation time. By accurately measuring the time difference (i.e., the time difference) between the propagation and countercurrent directions of the ultrasonic signal, the water velocity can be inferred. Furthermore, by combining the pipe geometry with parameters such as water temperature and pressure, the current flow rate of the water flowing through the pipe can be calculated.

[0004] Due to space limitations, the transducers of small-diameter ultrasonic water meters are currently usually placed in parallel, and the transmission and reception of ultrasonic waves are achieved by setting up two reflecting panels. The reflecting panels are usually installed inside the measuring main pipe using a reduced diameter pipe section. The reduced diameter pipe section has a complex structure, which increases the complexity of the entire measuring device structure and the difficulty of assembly, and increases the difficulty and cost of preparing the measuring device. Due to the complex structure of the reduced diameter pipe section, the water flow is hindered, which in turn causes water pressure loss, increases the complexity of the water flow field, and thus reduces stability and measurement accuracy. In addition, since the reflecting panel is placed in the middle of the measuring pipe through the reduced diameter pipe section, the measuring pipe is easily blocked by foreign matter, which is not conducive to the promotion and application of ultrasonic water meters. Summary of the Invention

[0005] The present application discloses a fluid measurement pipeline structure, a fluid measurement device and a fluid measurement system, aiming to solve the problems of complex structure, great difficulty in preparation, high preparation 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] In a first aspect, to solve the above-mentioned problem, an embodiment of the present application provides a fluid measurement pipeline structure, the fluid measurement pipeline structure comprising:

[0007] a measuring pipe section, a first connecting pipe section, and a second connecting pipe section;

[0008] A first mounting groove and a second mounting groove are respectively provided at both ends of the measuring pipe section in the axial direction. The first mounting groove and the second mounting groove are both used to mount a transducer. 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 axis of the measuring pipe section.

[0009] The first connecting pipe section and the second connecting pipe section are respectively connected to the measuring pipe section near its two ends in the axial direction. The axis of the first connecting pipe section intersects with the axis of the measuring pipe section, and the axis of the second connecting pipe section intersects with the axis of the measuring pipe section. The first connecting pipe section is used to connect to the upstream fluid pipeline of the fluid measuring system, and the second connecting pipe section is used to connect to the downstream fluid pipeline of the fluid measuring system.

[0010] Wherein, 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 sealing member and a second sealing member;

[0012] The first sealing member is arranged 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 sealing member is arranged 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 notch of the first mounting groove, and the first cover plate and the first mounting groove together form a first enclosed cavity. The second cover plate covers the notch of the second mounting groove, and the second cover plate and the second mounting groove together form a second enclosed cavity. Both the first enclosed space and the second enclosed space are used for sealing and installing the transducer.

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

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

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

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

[0020] The second sealing portion is connected to the surface of the second cover plate facing the second mounting groove. The second pressing portion 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 sealing member at least partially covers the transducer installed in the first mounting groove, and the second sealing member at least partially covers the transducer installed in the second mounting groove.

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

[0023] The upstream straight pipe section is connected to the first connecting pipe section and is arranged on a 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 is connected to the second communicating pipe section and is arranged on a side of the second communicating pipe section away from the measuring pipe section. The axis of the second communicating pipe section is 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 any one of 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.

[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, and 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 communicated with an end of the upstream straight pipe section away from the first connecting pipe section, and the second transfer pipe section is communicated with an 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 an end of the upstream straight pipe section away from the first connecting pipe section through the first transfer panel, and the second transfer pipe section is connected to an end of the downstream straight pipe section away from the second connecting pipe section through 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-section of the upstream straight pipe section and the cross-section of the downstream straight pipe section are both rectangular, or the cross-section of the upstream straight pipe section and the cross-section of 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] In a second aspect, an embodiment of the present invention further provides a fluid measuring device, comprising a first transducer, a second transducer, a control board, and the fluid measuring pipeline structure according to any embodiment of the first aspect;

[0038] The first transducer is installed in the first installation slot, the second transducer is installed in the second installation slot, and the first transducer and the second transducer are electrically connected to the control board card respectively.

[0039] In a third aspect, an embodiment of the present application further provides a fluid measurement system, the fluid measurement system comprising a main pipeline and the fluid measurement device according to the second aspect;

[0040] The main pipe is in communication with the first communicating pipe section of the fluid measuring device.

[0041] According to the embodiment of the present application, since the first mounting groove and the second mounting groove are respectively provided at both ends of the axial direction of the measuring pipe section, the first mounting groove and the second mounting groove are both 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, wherein 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 pipe section. Therefore, a measuring channel for fluid circulation and a channel for ultrasonic propagation can be simultaneously formed through the measuring pipe section. Compared with the measuring pipeline of the traditional measuring device, the reflection panel required for ultrasonic emission and reception propagation required by the traditional measuring device and the complex reduced-diameter pipe section required to support the reflection plate are eliminated. The structure of the fluid measuring pipeline structure of the present invention is greatly simplified, thereby reducing the preparation difficulty and preparation cost of the fluid measuring pipeline structure. At the same time, the ultrasonic signal is transmitted directly between the two transducers along the axial direction of the measuring pipe section, which can avoid the obstruction of the fluid caused by the complex reduced-diameter pipe section required to set up the reflection structure and support the reflection plate, reduce the pressure loss of the fluid, reduce the complexity of the fluid flow field, and thus improve the measurement stability and measurement accuracy. On the other hand, it can also avoid foreign matter blocking the fluid flow channel, which is convenient for the promotion and application of fluid measurement pipeline structures.

[0042] Since the first connecting pipe section and the second connecting pipe section are respectively connected to the two end parts of the measuring pipe section in the axial direction, the axis of the first connecting pipe section intersects with the axis of the measuring pipe section, and the axis of the second connecting pipe section intersects with the axis of the measuring pipe section. The first connecting pipe section is used to connect the upstream fluid pipeline of the fluid measuring system, and the second connecting pipe section is used to connect the downstream fluid pipeline or fluid outflow component of the fluid measuring system. Therefore, in the process of preparing and designing the fluid measuring pipeline structure, the pipe section flow area can be controlled by design, that is, the flow area between the first connecting pipe section, the second connecting pipe section and the measuring pipe section can be controlled by design, so that the fluid flow rate in the measuring pipe section is accelerated to improve the measurement accuracy of the fluid measuring device. At the same time, the measuring pipe section, the first connecting pipe section and the second connecting pipe section constitute an integral pipe section structure, thereby reducing the difficulty of processing and preparing the fluid measuring pipeline structure and saving the production cost of the fluid measuring pipeline structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0045] Figure 2 It is a vertical cross-sectional plan view of a fluid measurement pipeline structure provided by an embodiment of the present application;

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

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

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

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

[0050] Figure 7 It is a vertical cross-sectional plan view of another fluid measurement pipeline structure provided by an embodiment of the present application;

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

[0052] Figure 9 is a side view of another fluid measurement pipeline structure provided by an embodiment of the present application;

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

[0054] Figure 11 This is the second partial assembly diagram of the fluid measurement pipeline provided in the embodiment of the present application;

[0055] Figure 12 Schematic diagram of the structure of the fluid measuring device provided in an embodiment of the present application.

[0056] Figure 13 Schematic diagram of a fluid measurement system provided in an embodiment of the present application.

[0057] Description of reference numerals:

[0058] 1: Fluid measurement pipeline structure; 11: Measuring pipe section; 111: First mounting groove; 112: Second mounting groove; 12: First connecting pipe section; 13: Second connecting pipe section; 14: First sealing member; 15: Second sealing member; 16: First cover plate; 17: Second cover plate; 18: Third sealing member; 181: First sealing portion; 182: First pressing portion; 19: Fourth sealing member; 191: Second sealing portion; 192: Second pressing portion; 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 measuring device. DETAILED DESCRIPTION

[0059] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0060] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0062] Please refer to Figures 1 to 5 , an embodiment of the present application provides a fluid measurement pipeline structure, the fluid measurement pipeline structure comprising:

[0063] A measuring pipe section 11 , a first connecting pipe section 12 and a 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 pipe section 11 in the axial direction. 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 axis of the measuring pipe section 11.

[0065] The first connecting pipe section 12 and the second connecting pipe section 13 are respectively connected to the measuring pipe section 11 near its two ends in the axial direction. The axis of the first connecting pipe section 12 intersects with the axis of the measuring pipe section 11, and the axis of the second connecting pipe section 13 intersects with 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 measuring system, and the second connecting pipe section 13 is used to connect the downstream fluid pipeline or fluid outflow component of the fluid measuring 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] It can be seen from the above embodiments that in the embodiments of the present application, 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, and 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, wherein 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 axis of the measuring pipe section 11, so that a measuring channel for fluid circulation and a channel for ultrasonic propagation can be simultaneously formed through the measuring pipe section 11. Compared with the measuring pipeline of the traditional measuring device, the reflective panel required for ultrasonic emission and reception propagation required by the traditional measuring device and the complex reduced diameter pipe section required to support the reflective plate are eliminated. The structure of the fluid measuring pipeline structure of the present invention is greatly simplified, thereby reducing the preparation difficulty and preparation cost of the fluid measuring pipeline structure. At the same time, the ultrasonic signal is directly transmitted between the two transducers along the axial direction of the measuring pipe section 11, which can avoid the obstruction of the fluid caused by the setting of the reflection structure and the complex reduced-diameter pipe section required to support the reflection plate, reduce the pressure loss of the fluid, reduce the complexity of the fluid flow field, and thus improve the measurement stability and measurement accuracy. On the other hand, it can also avoid foreign matter blocking the fluid flow channel, thereby facilitating the promotion and application of fluid measurement pipeline structures.

[0068] Since the first connecting pipe section 12 and the second connecting pipe section 13 are respectively connected to the two end parts of the measuring pipe section 11 in the axial direction, the axis of the first connecting pipe section 12 intersects with the axis of the measuring pipe section 11, and the axis of the second connecting pipe section 13 intersects with 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 measuring system, and the second connecting pipe section 13 is used to connect the downstream fluid pipeline or fluid outflow component of the fluid measuring system. Therefore, in the process of preparing and designing the fluid measuring pipeline structure, the pipe section flow area 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 that the fluid flow rate in the measuring pipe section 11 is accelerated to improve the measurement accuracy of the fluid measuring device, and 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 constitute an integral pipe section structure, thereby reducing the difficulty of processing and preparing the fluid measuring pipeline structure and saving the production cost of the fluid measuring pipeline structure.

[0069] In the above embodiment, the measuring pipe section 11, the first connecting pipe section 12, and the second connecting pipe section 13 can be an integrally formed structure or a monolithic structure formed by welding multiple tubular structures, which is not limited in the present embodiment. The first connecting pipe section 12 and the second connecting pipe section 13 are connected to the measuring pipe section 11, and the first connecting pipe section 12 is located near one end of the measuring pipe section 11 in the axial direction, and the second connecting pipe section 13 is located near the other end of the measuring pipe section 11 in the axial direction, so that the angle between the axis of the first connecting pipe section 12 and the axis of the measuring pipe section 11 can also be a right angle, an obtuse angle, or an acute angle, and the angle between the axis of the second connecting pipe section 13 and the axis of the measuring pipe section 11 can also be a right angle, an obtuse angle, or an acute angle, which is not limited in the present embodiment. In some embodiments, the first connecting pipe section 12 can serve as a channel for fluid to enter, the second connecting pipe section 13 can serve as a channel for fluid to flow out, and the measuring pipe section 11 can form a closed fluid passage and a fluid measuring pipe section for measuring fluid flow, ultrasonic propagation, and ultrasonic propagation time.

[0070] The first installation groove 111 and the second installation groove 112 can be a part of the structure of the upper end of the measuring pipe section 11 in the axial direction, or can be an external structure installed on the upper end of the measuring pipe section 11 in the axial direction. This embodiment of the present application does not limit this. Figure 12As shown, when the fluid measuring pipe structure in the above embodiment is applied to a fluid measuring device for measuring water flow, the transducer installed in the first installation slot 111 can be used as an excitation transmitting transducer, and the transducer in the second installation slot 112 can be used as a receiving response transducer. Conversely, the transducer installed in the second installation slot 112 can be used as an excitation transmitting transducer, and the transducer in the first installation slot 111 can be used as a receiving response transducer. When the ultrasonic signal propagates in the direction of the water flow, the speed is accelerated and the propagation time is shortened. When it propagates in the direction against the water flow, the speed is slowed down and the propagation time is lengthened. By accurately measuring the time difference (i.e., time difference) in the propagation of ultrasonic signals in the downstream and upstream directions, the water flow velocity can be calculated, and then the water flow rate currently flowing through the fluid measuring pipe can be calculated through the geometric structure of the fluid measuring pipe, combined with parameters such as water temperature and water pressure. Among them, the flow direction of the fluid in the fluid measuring pipe structure is as follows: Figure 12 As shown by the arrow W in the figure, the direction of ultrasonic wave propagation in the fluid measurement pipeline structure along the water flow direction is as follows: Figure 12 As shown by the arrow P1 in the figure, the direction of ultrasonic wave propagation in the fluid measurement pipeline structure against the direction of water flow is as follows: Figure 12 As shown by arrow P2 in FIG.

[0071] In some embodiments, as Figure 10 and Figure 11 As shown, the fluid measuring pipeline structure also includes a first seal 14 and a second seal 15. The first seal 14 is arranged 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 arranged 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 seal 14 is disposed at the bottom of the first mounting groove 111 and the second seal 15 is disposed at the bottom of the second mounting groove 112, the first seal 14 can seal the gap between the transducer and the first mounting groove 111, and the second seal 15 can seal the gap between the transducer and the second mounting groove 112, thereby preventing 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. At the same time, the fluid inside the measuring tube section 11 can be prevented from flowing out of the gap between the transducer and the first mounting groove 111 or the gap between the transducer and the second mounting groove 112, thereby ensuring the airtightness of the measuring tube section 11 and the transducer after installation. It should be noted that the first seal 14 and the second seal 15 can be made of a rubber material such as nitrile rubber, EPDM rubber, silicone rubber, or fluororubber, and the first seal 14 and the second seal 15 can also be made of a plastic or polymer material such as polytetrafluoroethylene or polyurethane. The first sealing member 14 and the second sealing member 15 may be structures such as a sealing ring, a sealing cylinder, or a frame-shaped sealing member, which is not limited in the embodiment of the present application.

[0073] In some embodiments, as Figure 10 and Figure 11 As shown, the fluid measuring pipeline structure also includes a first cover plate 16 and a second cover plate 17. The first cover plate 16 covers the notch of the first mounting groove 111. The first cover plate 16 and the first mounting groove 111 together form a first closed cavity. The second cover plate 17 covers the notch of the second mounting groove 112. The second cover plate 17 and the second mounting groove 112 together form a second closed cavity. The first closed space and the second closed space are both used for sealing and mounting the transducer.

[0074] In this embodiment, since the first mounting groove 111 and the second mounting groove 112 are arranged at both ends of the axial direction of the measuring pipe segment 11, the first mounting groove 111 is connected to the first end of the measuring pipe segment 11 and the second mounting groove 112 is connected to the second end of the measuring pipe segment 11, so external water vapor can easily enter the interior of the measuring pipe segment 11 through the first mounting groove 111 and the second mounting groove 112, and the first mounting groove 111 and the second mounting groove 112 are also in the flow direction of the fluid in the measuring pipe segment 11, so it is necessary to further ensure the sealing between the first mounting groove 111 and the measuring pipe segment 11, and between the second mounting groove 112 and the measuring pipe segment 11. Based on this, by covering the first cover plate 16 at the notch of the first mounting groove 111, the first cover plate 16 and the first mounting groove 111 are enclosed to form a first closed cavity, and by covering the second cover plate 17 at the notch of the second mounting groove 112, the second cover plate 17 and the second mounting groove 112 are enclosed to form a second closed cavity. Therefore, the sealing of the measuring pipe section 11 can be prevented from being affected by the setting of the first mounting groove 111 and the second mounting groove 112, and 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 of 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 notch of the first installation slot 111 , and the second cover plate 17 is detachably connected to the notch of the second installation slot 112 .

[0076] In this embodiment, since the first cover plate 16 is detachably connected to the notch of the first mounting slot 111, and the second cover plate 17 is detachably connected to the notch of the second mounting slot 112, it is convenient to remove and install the transducer from the first mounting slot 111 and the second mounting slot 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 notch of the first mounting slot 111 by means of threaded connection, clamping connection, pressure riveting, etc., and the second cover plate 17 can be detachably connected to the notch of the second mounting slot 112 by means of threaded connection, clamping connection, pressure riveting, etc., and this embodiment of the application is not limited to this.

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

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

[0079] In some embodiments, as Figure 10 and Figure 11 As shown, the third sealing member 18 includes a first sealing portion 181 and a first pressing portion 182, and the fourth sealing member 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, and 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, and 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 portion 181 is connected to the surface of the first cover plate 16 facing the first mounting groove 111, and 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 first sealing portion 181 can seal the gap between the first mounting groove 111 and the first cover plate 16. Since the first pressing portion 182 is in direct contact with the transducer installed in the first mounting groove 111, the first pressing portion 182 can be used to position the transducer in the first mounting groove 111, thereby ensuring the stability of the position of the transducer installed in the first mounting groove 111. In addition, the first pressing portion 182 and the first sealing portion 181 can prevent the first cover plate 16 and the first mounting groove 111 from directly contacting the transducer during installation, thereby preventing the first cover plate 16 from damaging the transducer during installation. At the same time, the first pressing portion 182 can provide a buffer for the transducer installed in the first installation groove 111 to prevent the assembled fluid measuring tube section 11 from being damaged when it falls, thereby extending the service life of the transducer installed in the first installation groove 111.

[0081] Similarly, since the second sealing portion 191 is connected to the surface of the second cover plate 17 facing the second mounting groove 112, and 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, the second sealing portion 191 can seal the gap between the second mounting groove 112 and the second cover plate 17. Since the second pressing portion 192 is in direct contact with the transducer installed in the second mounting groove 112, the second pressing portion 192 can be used to position the transducer in the second mounting groove 112, thereby ensuring the stability of the position of the transducer installed in the second mounting groove 112. Moreover, the second pressing portion 192 and the second sealing portion 191 can prevent the second cover plate 17 and the second mounting groove 112 from directly contacting the transducer during installation, thereby preventing the second cover plate 17 from damaging the transducer during installation. At the same time, the second pressing portion 192 can provide a buffer for the transducer installed in the second installation groove 112, thereby preventing the assembled fluid measuring pipe section 11 from being damaged when it falls, thereby extending the service life of the transducer.

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

[0083] In this embodiment, since 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, not only can the first seal 14 seal the gap between the transducer and the first mounting groove 111, and the second seal 15 seal the gap between the transducer and the second mounting groove 112, thereby ensuring the sealing of the measuring pipe section 11, but also the first seal 14 can be used to position and protect the installation of the transducer in the first mounting groove 111, and the second seal 15 can be used to position and protect the installation of the transducer in the second mounting groove 112, the first seal 14 can be used to compensate for the installation tolerance between the transducer and the first mounting groove 111, and the second seal 15 can be used to compensate for the installation tolerance between the transducer and the second mounting groove 112, thereby facilitating the installation and fixation of the transducer in the first mounting groove 111 and the second mounting groove 112. At the same time, when the type of the 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 adapted thereto, avoiding the direct replacement of the fluid measurement pipeline structure and increasing the use cost.

[0084] Regarding the structure of the first seal 14 and the second seal 15, in an exemplary embodiment, the first seal 14 includes a first sealing ring and a first sealing cylinder connected to each other, 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 is larger than the second part, the first mounting groove 111 includes a first mounting cavity and a second mounting cavity connected to each other, the inner diameter of the first mounting cavity is larger than the inner diameter of the second mounting cavity, the second mounting groove 112 includes a third mounting cavity and a fourth mounting cavity connected to each other, the inner diameter of the third mounting cavity is larger than the inner diameter of the fourth mounting cavity. During installation, the first part is installed in the first mounting cavity and the third mounting cavity, and the second part is installed in the second mounting cavity and the fourth mounting cavity, so that the first sealing ring is sleeved on the second part and is located at the convex shoulder of the first mounting cavity and the second mounting cavity, the first sealing cylinder is sleeved on the first part and is located on the inner wall of the first part and the first mounting cavity, so that the second sealing ring is sleeved on the second part and is located at the convex shoulder of the third mounting cavity and the fourth mounting cavity, and the second sealing cylinder is sleeved on the first part and is located on the inner wall of the first part and the third mounting cavity.

[0085] In some embodiments, the fluid measuring pipeline structure also 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 the first connecting pipe section 12, and is arranged on the side of the first connecting pipe section 12 away from the measuring pipe section 11, and the axis of the first connecting pipe section 12 is parallel to the axis of the measuring pipe section 11, and the downstream straight pipe section 102 is connected to the second connecting pipe section 13, and is arranged on the side of the second connecting pipe section 13 away from the measuring pipe section 11, and 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, and may also include a downstream straight pipe section 102, or may include both an upstream straight pipe section 101 and a downstream straight pipe section 102. This embodiment of the present application does not limit this. In this way, since the upstream straight pipe section 101 is connected to the first connecting pipe section 12 and is arranged on the side of the first connecting pipe section 12 away from the measuring pipe section 11, 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 is connected to the second connecting pipe section 13 and is arranged on the side of the second connecting pipe section 13 away from the measuring pipe section 11, the axis of the downstream straight pipe section 102 is parallel to the axis of the measuring pipe section 11. Usually, the measuring device is installed in the middle of the straight pipeline. Therefore, the upstream straight pipe section 101 and the downstream straight pipe section 102 can be used to extend the overall length of the entire fluid measurement pipeline structure while simplifying the 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 flow areas 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 .

[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 flow areas 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, it is possible to ensure that the flow area of ​​the measuring pipe section 11 is the smallest flow area of ​​the entire fluid measurement pipeline structure, thereby increasing the flow velocity of the fluid when passing through the measuring pipe section 11, thereby increasing the time difference between the downstream and upstream propagation of the ultrasonic wave, and thereby improving the measurement accuracy of the fluid flow velocity and flow rate. At the same time, when the flow area of ​​the measuring pipe section 11 is the smallest flow area of ​​the entire fluid measurement pipeline structure, the volume of the fluid measurement pipeline structure can be reduced while ensuring measurement accuracy, making it easier for the fluid measurement pipeline structure to be installed in a small space and improving the adaptability of the fluid measurement pipeline structure.

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

[0090] In this embodiment, since the flow areas of the measuring pipe section 11, the flow areas of the first connecting pipe section 12, and the flow areas of the second connecting pipe section 13 are equal, and the flow area of ​​the measuring pipe section 11 is the smallest flow area of ​​the entire fluid measurement pipeline structure, the flow areas of the first connecting pipe section 12, the flow areas of the second connecting pipe section 13, and the flow areas of the measuring pipe section 11 can all be minimized. On the one hand, the eddy current or turbulent interference generated at the point where the flow areas of the pipe sections change can be reduced. On the other hand, the flow velocity of the fluid flowing in the first connecting pipe section 12, the measuring pipe section 11, and the second connecting pipe section 13 can be improved as a whole, thereby increasing the time difference between the downstream and upstream propagation of the ultrasonic wave, thereby improving the measurement accuracy of the fluid flow velocity and flow rate. Similarly, when the flow areas of the first connecting pipe section 12, the flow areas of the second connecting pipe section 13, and the flow areas of the measuring pipe section 11 are all minimized, the volume of the fluid measurement pipeline structure can be further reduced, reducing 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 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, and the flow area of ​​the measuring pipe section 11 is the smallest flow area in the entire fluid measuring pipeline structure, the overall flow area of ​​the fluid measuring pipe section 11 can be reduced to a minimum value. On the one hand, the eddy current or turbulent interference generated at the point where the flow area of ​​the pipe section changes can be reduced. On the other hand, the flow velocity of the fluid flowing in the fluid measuring pipe section 11 can be improved as a whole, thereby increasing the time difference between the propagation of ultrasonic waves downstream and upstream, thereby improving the measurement accuracy of the fluid flow 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, and the first flow area 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, the first flow area is the flow area of ​​the main pipe 2 assembled with the fluid measuring pipe structure, so it can ensure that the flow velocity of the entire fluid in the measuring pipe structure is the maximum, thereby increasing the time difference between the downstream and upstream propagation of the ultrasonic wave, thereby improving the measurement accuracy of the fluid flow rate and flow.

[0095] In some embodiments, the fluid measurement pipeline structure also includes a first transfer pipe section 103 and a second transfer pipe section 104, 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 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, the first transfer pipe section 103 can be connected to the main pipeline 2, and the second transfer pipe section 104 can be connected to the fluid outlet component, thereby facilitating the installation, deployment, and application of the entire fluid measurement pipeline structure. It should be noted that the connection between the first transfer pipe section 103 and the upstream straight pipe section 101 can be achieved through flange connection, welding, threaded connection, etc., and the connection between the second transfer pipe section 104 and the downstream straight pipe section 102 can be achieved through flange connection, welding, threaded connection, etc., and this embodiment of the application is not limited to this.

[0097] In some embodiments, the fluid measuring pipeline structure also 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 achieved 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 achieved 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 segment 11, the first connecting pipe segment 12, and the second connecting pipe segment 13 are all rectangular, or the cross-sections of the measuring pipe segment 11, the first connecting pipe segment 12, and the second connecting pipe segment 13 are all circular.

[0100] In this embodiment, when the cross-sections of the measuring pipe segment 11, the first connecting pipe segment 12, and the second connecting pipe segment 13 are all rectangular, on the one hand, it is possible to ensure that the flow shapes of the various pipe segments in the fluid measuring pipe structure are the same, thereby avoiding eddy currents or turbulent interference generated when the fluid flows through pipe segments with different flow shapes; on the other hand, it is possible to make the shapes of the various pipe segments in the fluid measuring pipe structure the same, thereby facilitating parameter control, thereby reducing preparation errors and reducing the processing and preparation costs of the fluid measuring pipe structure. When the cross-sections of the measuring pipe segment 11, the first connecting pipe segment 12, and the second connecting pipe segment 13 are all circular, on the one hand, it is possible to ensure that the flow shapes of the various pipe segments in the fluid measuring pipe structure are the same, thereby avoiding eddy currents or turbulent interference generated when the fluid flows through pipe segments with different flow shapes; on the other hand, it is possible to make the shapes of the various pipe segments in the fluid measuring pipe structure the same, thereby facilitating parameter control, thereby reducing preparation errors and reducing the processing and preparation costs of the fluid measuring pipe 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 the cross-sections of the upstream straight pipe section 101 and the downstream straight pipe section 102 are both circular, the shapes of the flow paths of each pipe section in the fluid measurement pipeline structure can be made 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 be the same, 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 be the same. This embodiment of the present application 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, they can be connected through pipe section adapters or other connecting structures, or they can be directly welded, and this is not limited to the embodiments of the present application.

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

[0104] In this embodiment, the control valve 107 can be any valve structure such as a ball valve, a needle valve, or a butterfly valve. Thus, when the control valve 107 is installed in the downstream straight pipe section 102, the flow of fluid in the downstream straight pipe section 102 can be controlled by the control valve 107, thereby controlling the flow of fluid through the fluid measurement pipeline structure, thereby 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 molding process reduces assembly errors, thereby improving the accuracy and sealing of the entire fluid measuring pipeline structure.

[0107] It can be seen from the above embodiments that in the embodiments of the present application, 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, and 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, wherein 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 axis of the measuring pipe section 11, so that a measuring channel for fluid circulation and a channel for ultrasonic propagation can be simultaneously formed through the measuring pipe section 11. Compared with the measuring pipeline of the traditional measuring device, the reflective panel required for ultrasonic emission and reception propagation required by the traditional measuring device and the complex reduced diameter pipe section required to support the reflective plate are eliminated. The structure of the fluid measuring pipeline structure of the present invention is greatly simplified, thereby reducing the preparation difficulty and preparation cost of the fluid measuring pipeline structure. At the same time, the ultrasonic signal is directly transmitted between the two transducers along the axial direction of the measuring pipe section 11, which can avoid the obstruction of the fluid caused by the complex reduced-diameter pipe section required to set up the reflection structure and support the reflection plate, reduce the pressure loss of the fluid, reduce the complexity of the fluid flow field, and thus improve the measurement stability and measurement accuracy. On the other hand, it can also avoid foreign matter blocking the fluid flow channel, thereby facilitating the promotion and application of fluid measurement pipeline structures.

[0108] Since the first connecting pipe section 12 and the second connecting pipe section 13 are respectively connected to the two end parts of the measuring pipe section 11 in the axial direction, the axis of the first connecting pipe section 12 intersects with the axis of the measuring pipe section 11, and the axis of the second connecting pipe section 13 intersects with 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 measuring system, and the second connecting pipe section 13 is used to connect the downstream fluid pipeline or fluid outflow component of the fluid measuring system. Therefore, in the process of preparing and designing the fluid measuring pipeline structure, the pipe section flow area 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 that the fluid flow rate in the measuring pipe section 11 is accelerated to improve the measurement accuracy of the fluid measuring device, and 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 constitute an integral pipe section structure, thereby reducing the difficulty of processing and preparing the fluid measuring pipeline structure and saving the production cost of the fluid measuring pipeline structure.

[0109] In some embodiments, as Figure 12 and Figure 13As shown, an embodiment of the present application 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 of any embodiment of the first aspect, the first transducer 3 is installed in the first mounting groove 111, the second transducer 4 is installed in the second mounting groove 112, and 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 conduit 2 and the fluid measuring conduit structure of any of the above-described embodiments, the complexity of the fluid measuring conduit structure is reduced, thereby simplifying the structure of the fluid measuring device, thereby reducing the manufacturing cost of the fluid measuring device. Furthermore, since the fluid measuring device can reduce obstruction to the fluid, reduce fluid pressure loss, and reduce the complexity of the fluid flow field, the stability and measurement accuracy of the fluid measuring device can be improved, and the fluid measuring device can be promoted and applied, thereby expanding the scope of its applicable applications.

[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, an electromagnetic transducer, or the like. Thus, when the fluid measuring tube device in the above embodiment measures water flow, the first transducer 3 installed in the first mounting slot 111 can serve as an excitation-transmitting transducer, and the second transducer 4 in the second mounting slot 112 can serve as a receiving-response transducer. Conversely, the second transducer 4 installed in the second mounting slot 112 can serve as an excitation-transmitting transducer, and the first transducer 3 installed in the first mounting slot 111 can serve as a receiving-response transducer. Thus, the control board 5 controls the first transducer 3 and the second transducer 4 to transmit ultrasonic signals. When the ultrasonic signals propagate in the direction of the water flow, their speed increases and their propagation time shortens. When they propagate against the water flow, their speed decreases and their propagation time lengthens. By accurately measuring the time difference (i.e., time difference) between the propagation of ultrasonic signals in the downstream and upstream directions, the water flow velocity can be calculated. Then, through the geometric structure of the fluid measurement pipeline, combined with parameters such as water temperature and water pressure, the current water flow rate flowing through the fluid measurement pipeline can be calculated.

[0112] In some embodiments, the present application also provides a fluid measurement system, which includes a main pipe 2 and the fluid measurement device of the second aspect, and the main pipe 2 is connected to the first connecting pipe section 12 of the fluid measurement device.

[0113] In this embodiment, the main pipe 2 is the main channel for the flow of the fluid to be measured. One end of the main pipe 2 is connected to the fluid supply source, and the other end of the main pipe 2 is connected to the fluid measuring device, so that the main pipe 2 introduces the fluid into the measuring pipe of the fluid measuring device, and then the fluid can be measured. Under the premise that the above-mentioned fluid measuring device has the advantages of simplified structure, reduced preparation cost, and improved measurement accuracy, it is not only convenient to install the fluid measuring device in the fluid measuring system, which is conducive to the use of the fluid measuring device in different environments, but also enables the fluid measuring system to also have the advantages of simplified structure, reduced preparation cost, and improved measurement accuracy. In an exemplary embodiment, the fluid measuring device can be installed between the main pipe 2 and the water outlet. The water outlet can include any structure such as a faucet, a water outlet, a water distributor, a nozzle, etc., and the embodiment of the present application is not limited to this. In this way, it is convenient to measure the water output of the water outlet by the fluid measuring device. Due to the improvement of the structure of the fluid measuring device, the cost of the fluid measuring device is reduced, the stability and measurement accuracy of the fluid flow measurement are improved, and the application scenarios of the ultrasonic fluid flow measuring device are broadened, thereby facilitating the promotion and application of such fluid measuring devices.

[0114] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to in detail.

[0115] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0116] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0117] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A fluid measurement pipeline structure, characterized in that: The fluid measurement pipeline structure includes: A measuring pipe section, a first connecting pipe section, and a second connecting pipe section; A first mounting groove and a second mounting groove are respectively provided at both ends of the measuring pipe section in the axial direction. The first mounting groove and the second mounting groove are both used to mount a transducer. 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 axis of the measuring pipe section. The first connecting pipe section and the second connecting pipe section are respectively connected to the measuring pipe section near its two ends in the axial direction. The axis of the first connecting pipe section intersects with the axis of the measuring pipe section, and the axis of the second connecting pipe section intersects with the axis of the measuring pipe section. The first connecting pipe section is used to connect to the upstream fluid pipeline of the fluid measuring system, and the second connecting pipe section is used to connect to the downstream fluid pipeline of the fluid measuring system. Wherein, 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 further includes a first sealing member and a second sealing member; The first sealing member is arranged 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 sealing member is arranged 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 further includes a first cover plate and a second cover plate; The first cover plate covers the notch of the first mounting groove, and the first cover plate and the first mounting groove together form a first enclosed cavity. The second cover plate covers the notch of the second mounting groove, and the second cover plate and the second mounting groove together form a second enclosed cavity. Both the first enclosed space and the second enclosed space are used for sealing and installing the transducer.

4. The fluid measurement pipeline structure according to claim 3, characterized in that: The first cover plate is detachably connected to the notch of the first installation slot, and the second cover plate is detachably connected to the notch of the second installation slot.

5. The fluid measurement pipeline structure according to claim 4, characterized in that: A third sealing member is provided at the notch of the first cover plate and the first mounting groove, and a fourth sealing member is provided at the notch 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 member includes a first sealing portion and a first pressing portion, and the fourth sealing member includes a second sealing portion and a second pressing portion; The first sealing portion is connected to a surface of the first cover plate facing the first mounting groove, and the first pressing portion is embedded in the first mounting groove and abuts against a surface of the transducer installed in the first mounting groove; The second sealing portion is connected to the surface of the second cover plate facing the second mounting groove. The second pressing portion 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 sealing member at least partially covers the transducer installed in the first installation groove, and the second sealing member at least partially covers the transducer installed in the second installation groove.

8. The fluid measurement pipeline structure according to claim 1, characterized in that: The fluid measurement pipeline structure further includes at least one of an upstream straight pipe section and a downstream straight pipe section; The upstream straight pipe section is connected to the first connecting pipe section and is arranged on a 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 is connected to the second communicating pipe section and is arranged on a side of the second communicating pipe section away from the measuring pipe section. The axis of the second communicating pipe section is 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 smaller than or equal to any one of 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 communicating pipe section, and the flow area of ​​the second communicating 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 communicating pipe section, the flow area of ​​the second communicating 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, and the first flow area 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 further includes a first transfer pipe section and a second transfer pipe section; The first transfer pipe section is communicated with an end of the upstream straight pipe section away from the first connecting pipe section, and the second transfer pipe section is communicated with an 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 further includes a first adapter panel and a second adapter panel; The first transfer pipe section is connected to an end of the upstream straight pipe section away from the first connecting pipe section through the first transfer panel, and the second transfer pipe section is connected to an end of the downstream straight pipe section away from the second connecting pipe section through 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 section of the upstream straight pipe section and the cross section of the downstream straight pipe section are both rectangular, or the cross section of the upstream straight pipe section and the cross section of 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 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.

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 comprises 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 installation slot, the second transducer is installed in the second installation slot, and the first transducer and the second transducer are electrically connected to the control board card respectively.

20. A fluid measurement system, characterized in that: The fluid measurement system comprises a main body pipeline and the fluid measurement device according to claim 19; The main pipe is in communication with the first communicating pipe section of the fluid measuring device.

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