Water flow measuring pipeline and ultrasonic water meter with same

Abstract

The water flow measuring pipeline comprises a straight pipe section, the end portions of the two ends of the straight pipe section are respectively provided with an installation opening, the two installation openings are both used for assembling an ultrasonic transducer, and the two installation openings are communicated with the straight pipe section. A water inlet pipe section and a water outlet pipe section which extend outwards are arranged on the outer walls, close to the two ends of the straight pipe section, of the straight pipe section respectively, and the water inlet pipe section and the water outlet pipe section are both communicated with the interior of the straight pipe section. After the ultrasonic transducers are installed in the two installation openings, water flow introduced from the water inlet pipe section can flow in the direction of the water inlet pipe section, the straight pipe section and the water outlet pipe section in sequence. The straight pipe section is long, the distance between the water inlet pipe section and the water outlet pipe section is long, water flow cannot directly flow into the water outlet pipe section from the water inlet pipe section, it is guaranteed that the water flow direction of the measuring section is consistent and is the same as the correlation direction of an ultrasonic transducer, and the flow monitoring precision of the ultrasonic water meter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water meters, in particular to a water flow measurement pipeline. Background Art

[0002] As the problem of water shortage becomes increasingly prominent, improving the accuracy and intelligence of water meter measurement has become the current development trend. Ultrasonic water meter is a new type of water meter technology, which uses ultrasonic waves to measure flow rate and flow. Specifically, ultrasonic sensors are set at both ends of the pipeline. One end emits ultrasonic waves, which are received by the other sensor after being disturbed and reflected by the water flow. Common influencing factors are pipeline pressure and installation position. The vibration caused by pressure inside the pipeline, the eddy current when flowing through the pipeline, and the bending of the pipeline at the installation position will affect the measurement results and the stability of the instrument.

[0003] For example: A Chinese utility model patent document with a patent announcement number of CN211954290U and the name of "Ultrasonic water meter flow tube with valve" records a water meter flow tube, whose structure includes a straight tube, the straight tube includes a detection section and a control section, the detection section and the control section are fixedly connected and interconnected; a ball valve is provided in the control section; the detection section is also provided with two mounting tubes, the two mounting tubes are fixed on both sides of the detection section, the two mounting tubes are arranged opposite and on the same central axis, the two mounting tubes are connected to the detection section, and the two mounting tubes are respectively inserted with ultrasonic transducers. Although such a structure can make the ultrasonic flow tube occupy a small space, save manufacturing costs, and have the function of controlling the flow of the water pipe. However, due to the angle between the water flow direction and the direction of the ultrasonic transducer, it is easy to interfere with the ultrasonic wave and cause measurement errors, resulting in low accuracy of ultrasonic water meter flow monitoring. Utility Model Content

[0004] In view of this, the utility model provides a water flow measurement pipeline, which aims to solve the technical defect that the flow measurement accuracy is not high due to the angle between the water flow direction and the transducer radiation direction.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A water flow measurement pipeline comprises a straight pipe section, wherein each end of the straight pipe section is provided with an installation opening, and the two installation openings are used to install ultrasonic transducers. The outer wall of the straight pipe section near its two ends is respectively provided with an outwardly extending water inlet pipe section and a water outlet pipe section, and the water inlet pipe section and the water outlet pipe section are both connected to the interior of the straight pipe section; after the ultrasonic transducer is installed in the two installation openings, the water flow introduced from the water inlet pipe section can flow in the directions of the water inlet pipe section, the straight pipe section and the water outlet pipe section in sequence.

[0007] With the above structure, the straight pipe section is longer and the distance between the inlet pipe section and the outlet pipe section is farther, so the water flow cannot flow directly from the inlet pipe section into the outlet pipe section, which ensures that the water flow direction in the measuring section is consistent and the same as the direction of the ultrasonic transducer, thereby improving the flow monitoring accuracy of the ultrasonic water meter.

[0008] Preferably, an angle is set between the water inlet pipe section and the straight pipe section, and between the water outlet pipe section and the straight pipe section, and the angle is 15 to 90 degrees. The above structure takes into account both the water flow resistance and the cross-beam measurement distance, ensures that the transducer is parallel to the water flow direction, and avoids excessive influence of the curved structure on the water flow.

[0009] Preferably, the angle is equal to 60°. The above structure is adopted to ensure that the direction of water flow in the measuring section is the same as the direction of the ultrasonic transducer, while minimizing the resistance to the water flow.

[0010] As a preference: the water inlet pipe section and the water outlet pipe section are centrally rotationally symmetrical with respect to the center point of the straight pipe section. With the above structure, the water inlet pipe section and the water outlet pipe section are located on both sides of the straight pipe section, which is convenient for installation and has a regular structure.

[0011] As a preferred embodiment, the water inlet pipe section and the water outlet pipe section are axially symmetrical with respect to the middle section of the straight pipe section. With the above structure, the water inlet pipe section and the water outlet pipe section are located on the same side, which is convenient for installation in some special positions.

[0012] Preferably, the water inlet pipe section and the water outlet pipe section are configured as a curved structure near the straight pipe section, a triangular reinforcing rib is provided between the straight pipe section and the curved structure, and the triangular reinforcing rib, the straight pipe section and the curved structure are integrally formed. The above structure can improve the strength of the water pipe and prevent stress concentration caused by the curved structure from causing deformation and damage to the water pipe.

[0013] As a preferred embodiment: two annular bosses extend upward from the upper side of the straight pipe section, the two annular bosses are respectively close to the two ends of the straight pipe section, annular mounting columns extend axially from the upper sides of the two annular bosses, the two annular bosses are respectively coaxial with the two annular mounting columns, and the outer tube walls of the middle sections of the two annular mounting columns are provided with water meter mounting threads along the circumferential direction. With the above structure, the water meter base cooperates with the upper ends of the annular bosses, the two annular mounting columns pass through the two mounting holes of the water meter base, and the nuts cooperate with the water meter mounting threads and are tightened, so that the water meter is firmly installed on the water pipe.

[0014] As a preferred embodiment, the upper ends of the two annular bosses are provided with sealing ring installation grooves, and sealing rings are installed in the sealing ring installation grooves. With the above structure, the ultrasonic water meter is sealed and protected to prevent water from entering under special circumstances and causing damage to the water meter.

[0015] Preferably, the two annular bosses are provided with a trapezoidal box along the axis of the straight pipe section on the side away from each other, and the two trapezoidal boxes extend axially to the bottom of the corresponding ultrasonic transducer end cover, and the bottom of the two trapezoidal boxes is adapted to the shape of the outer wall of the straight pipe section, and circular through holes are axially provided inside the two trapezoidal boxes, and the circular through holes penetrate into the corresponding annular bosses, and the upper wall of the open installation at both ends of the straight pipe section is axially provided with through semicircular grooves, and the diameter of the through semicircular grooves is adapted to the aperture of the circular through holes. With the above structure, the line drawn from the ultrasonic transducer can be fully enclosed through the circular through hole to the annular boss and the annular mounting column and introduced into the water meter housing assembly. The structure is simple and the appearance quality is high.

[0016] The utility model also provides an ultrasonic water meter, which aims to solve the technical defect that the current water meter has low accuracy in measuring water flow.

[0017] To achieve the above purpose, the technical solution of the utility model is as follows:

[0018] The water flow measurement pipe is installed at the bottom of the water meter. With the above structure, the water meter can process the data collected by the ultrasonic transducer, record the water flow, and is provided with a visual reading window for easy reading of data.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The unique pipeline design allows the transducers in the water flow detection section to face each other, and the direction of the face-to-face connection is parallel to the direction of the water flow, thus avoiding errors caused by the inconsistency between the measurement direction and the water flow direction and improving the accuracy of water flow measurement. At the same time, the angles between the water inlet pipe section and the straight pipe section and between the water outlet pipe section and the straight pipe section are controlled, taking into account the water flow resistance and the face-to-face connection measurement interval, so as to minimize the impact on the water flow and maximize the measurement accuracy. The ultrasonic water meter is used with the pipeline to achieve accurate measurement of water flow.

[0021] 2. The line leading out from the transducer can be fully enclosed and introduced into the water meter housing assembly through the trapezoidal box, the annular boss, and the annular mounting column to avoid the danger caused by the line getting wet and simplify the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the water flow measurement pipeline of the utility model;

[0023] Figure 2 This is the main view of the water flow measurement pipeline;

[0024] Figure 3 for Figure 2 Sectional view along DD;

[0025] Figure 4This is a schematic diagram of another installation method of the utility model;

[0026] Figure 5 It is a partial cross-sectional view of the utility model;

[0027] Figure 6 This is the overall schematic diagram of the water meter after installation. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with embodiments and drawings.

[0029] like Figure 1 and Figure 2 As shown, a water flow measurement pipeline includes a straight pipe section 1, and a mounting opening 4 is respectively provided at the ends of both ends of the straight pipe section 1. The two mounting openings 4 are used to install ultrasonic transducers 5. The outer wall of the straight pipe section 1 near its two ends is respectively provided with an inlet pipe section 2 and an outlet pipe section 3 extending outward, and the inlet pipe section 2 and the outlet pipe section 3 are both connected with the inside of the straight pipe section 1. Since the positions where the inlet pipe section 2 and the straight pipe section 1 are connected, and the outlet pipe section 3 and the straight pipe section 1 are connected are both close to the ends of the straight pipe section 1, it can be ensured that the water flow has a sufficient straight flow distance in the straight pipe section 1. Therefore, after the ultrasonic transducer 5 is installed in the two mounting openings 4, the irradiation direction of the ultrasonic transducer 5 is the same as the direction of the monitored water flow, thereby achieving accurate measurement. After the measurement is completed, the water flows out through the outlet pipe section 3.

[0030] like Figure 3 As shown, an angle B is provided between the water inlet pipe section 2 and the straight pipe section 1, and between the water outlet pipe section 3 and the straight pipe section 1, and the angle B is 15-60°. The optimal angle B is 30°. When the water flows through the angle B between the water inlet pipe section 2 and the straight pipe section 1 and between the water outlet pipe section 3 and the straight pipe section 1, the water flow is least affected, and the impact on the pipe wall is relatively minimal. At the same time, the cross-beam measurement interval is at the optimal measurement distance.

[0031] like Figure 3 As shown, one of the installation methods of the water inlet pipe section 2 and the water outlet pipe section 3 relative to the straight pipe section 1 is that the water inlet pipe section 2 and the water outlet pipe section 3 are centrally rotated symmetrically relative to the center point of the straight pipe section 1, the structure is regular, and the water flow is less affected. In addition, another installation method is: please refer to the attached Figure 4 The water inlet pipe section 2 and the water outlet pipe section 3 are axially symmetrical with respect to the middle section of the straight pipe section 1, which is suitable for special installation positions.

[0032] like Figure 1As shown, the positions of the water inlet pipe section 2 and the water outlet pipe section 3 near the straight pipe section 1 are both constructed into a curved structure. The curved structure can make the positions where the water inlet pipe section 2 and the straight pipe section 1 are connected, and the water outlet pipe section 3 and the straight pipe section 1 are connected closer to the end of the straight pipe section 1, thereby increasing the distance that the water flows in the straight direction in the middle of the straight pipe section 1. The water inlet pipe section 2 and the water outlet pipe section 3 are coaxial at one end away from the straight pipe section 1, and water pipe installation threads are provided on the outer walls of the pipe openings of the water inlet pipe section and the water outlet pipe section to achieve external connection at both ends. A triangular reinforcing rib 7 is provided between the straight pipe section 1 and the curved structure. The triangular reinforcing rib 7, the straight pipe section 1 and the curved structure are integrally formed. When the water flow rate is too large, stress concentration is likely to occur at the turning point, resulting in damage to the water pipe. Since the triangular structure is stable, the triangular reinforcing rib 7 is provided at the turning point to improve the strength of the water pipe, make up for the disadvantages caused by the irregular shape, and reduce the deformation of the water pipe caused by aging.

[0033] like Figure 2 and Figure 5 As shown, two annular bosses 9 extend upward from the upper side of the straight pipe section 1, and the two annular bosses 9 are respectively close to the two ends of the straight pipe section 1. Annular mounting columns 10 extend axially from the upper sides of the two annular bosses 9, and the two annular bosses 9 are respectively coaxial with the two annular mounting columns 10. The outer tube wall of the middle section of the two annular mounting columns 10 is provided with water meter mounting threads 11 along the circumferential direction. A sealing ring mounting groove 12 is provided at the upper end of the annular boss 9, and a sealing ring 13 is installed in the sealing ring mounting groove 12. The base of the ultrasonic water meter 17 is placed on the annular boss 9, and the nut is tightened with the water meter mounting thread 11 to connect and fix the ultrasonic water meter 17 to the water pipe. The sealing ring 13 prevents water from entering the ultrasonic water meter 17.

[0034] like Figure 2 and Figure 5 As shown, two annular bosses 9 are provided with trapezoidal boxes 8 along the axis direction of the straight pipe section at the side away from each other, and the two trapezoidal boxes 8 extend to the bottom of the corresponding end cover of the ultrasonic transducer 5. The bottom of the two trapezoidal boxes 8 is adapted to the shape of the outer wall of the straight pipe section 1. The two trapezoidal boxes 8 are provided with circular through holes 16 along the axial direction, and the circular through holes 16 penetrate into the corresponding annular bosses 9. The upper side walls of the installation openings 4 at both ends of the straight pipe section 1 are provided with through semicircular grooves 14 along the axial direction, and the diameter of the through semicircular grooves 14 is adapted to the aperture of the circular through holes 16. The line of the ultrasonic transducer 5 is introduced into the ultrasonic water meter 17 housing assembly from the annular boss 9 and the annular mounting column 10 in a fully enclosed manner through the semicircular grooves 14 and the circular through holes 16 in the box.

[0035] like Figure 6 As shown, an ultrasonic water meter 17 has a measuring pipe installed at the bottom. The ultrasonic water meter 17 processes the data collected by the ultrasonic transducer 5 and records the water flow.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A water flow measurement pipeline, characterized in that: The invention comprises a straight pipe section (1), each end of the straight pipe section (1) being provided with a mounting opening (4), the two mounting openings (4) being used to mount an ultrasonic transducer (5), and the outer wall of the straight pipe section (1) near its two ends being provided with an inlet pipe section (2) and an outlet pipe section (3) extending outwards, respectively, the inlet pipe section (2) and the outlet pipe section (3) being connected to the interior of the straight pipe section (1).

2. A water flow measurement pipeline according to claim 1, characterized in that: An included angle B is provided between the water inlet pipe section (2) and the straight pipe section (1), as well as between the water outlet pipe section (3) and the straight pipe section (1), and the included angle B is 15 to 60 degrees.

3. A water flow measurement pipeline according to claim 2, characterized in that: The angle B is equal to 30°.

4. A water flow measurement pipeline according to claim 1, characterized in that: The water inlet pipe section (2) and the water outlet pipe section (3) are centrally rotationally symmetrical relative to the center point of the straight pipe section (1).

5. The water flow measurement pipeline according to claim 1, characterized in that: The water inlet pipe section (2) and the water outlet pipe section (3) are axially symmetrical with respect to the middle cross section of the straight pipe section (1).

6. A water flow measurement pipeline according to claim 1, characterized in that: The positions of the water inlet pipe section (2) and the water outlet pipe section (3) close to the straight pipe section (1) are both constructed as curved structures, a triangular reinforcing rib (7) is provided between the straight pipe section (1) and the curved structure, and the triangular reinforcing rib (7), the straight pipe section (1) and the curved structure are integrally formed.

7. The water flow measurement pipeline according to claim 1, characterized in that: Two annular bosses (9) extend upward from the upper side of the straight pipe section (1), the two annular bosses (9) are respectively close to the two ends of the straight pipe section (1), annular mounting columns (10) extend axially above the two annular bosses (9), the two annular bosses (9) are respectively coaxial with the two annular mounting columns (10), and water meter mounting threads (11) are provided on the outer pipe walls of the middle sections of the two annular mounting columns (10) along the circumferential direction.

8. The water flow measurement pipeline according to claim 7, characterized in that: The upper ends of the two annular bosses (9) are provided with sealing ring installation grooves (12), and sealing rings (13) are installed in the sealing ring installation grooves (12).

9. The water flow measurement pipeline according to claim 7, characterized in that: The two annular bosses (9) are respectively provided with a trapezoidal box body (8) along the axial direction of the straight pipe section (1) on the side away from each other. The two trapezoidal box bodies (8) extend to the bottom of the corresponding ultrasonic transducer (5) end cover. The bottom of the two trapezoidal box bodies (8) is adapted to the shape of the outer tube wall of the straight pipe section (1). The two trapezoidal box bodies (8) are provided with a circular through hole (16) along the axial direction. The circular through hole (16) penetrates into the corresponding annular boss (9). The upper tube wall of the installation opening (4) at both ends of the straight pipe section (1) is respectively provided with a through semicircular groove (14) along the axial direction. The diameter of the through semicircular groove (14) is adapted to the aperture of the circular through hole (16).

10. An ultrasonic water meter (17), characterized in that: A water flow measurement pipe according to any one of claims 1 to 9 is installed at the bottom of the water meter (17).

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