Ultrasonic open channel flowmeter with adjusting function

Abstract

The utility model discloses an ultrasonic open channel flowmeter with an adjusting function, and relates to the field of ultrasonic flowmeters. The device comprises a throat, a contraction section, a diffusion section and a flow meter, an adjusting mechanism is arranged between a supporting transverse plate and a mounting piece, the adjusting mechanism comprises a screw sleeve, and screws are arranged at the two ends of the screw sleeve. The supporting assembly can flexibly adapt to contraction sections with different inclination angles and sizes, the length of the adjusting mechanism can be changed by adjusting the position of the threaded rod in the threaded rod sleeve, then the height and angle of the supporting transverse plate are adjusted, the flexibility enables the supporting assembly to adapt to Parshall grooves with different specifications, and the supporting assembly is convenient to use. The support frame with a specific size does not need to be customized, so that the mounting adaptability is improved, the preparatory work and the customization cost before mounting are reduced, and the mounting process is simpler, more convenient and quicker.

Description

Technical Field

[0001] The utility model relates to the field of ultrasonic flowmeters, in particular to an ultrasonic open channel flowmeter with an adjustment function. Background Art

[0002] Ultrasonic open channel flowmeter is an ultrasonic flowmeter that calculates flow value by measuring the average flow velocity and liquid level cross-sectional area of ​​the liquid. It is mainly used in scenes such as non-full pipes and culverts. It has the characteristics of automatic data storage, high measurement accuracy, full Chinese display, flexible operation, and easy portability. The working principle of ultrasonic open channel flowmeter is mainly based on the time difference measurement principle. After the probe transmits the signal through the pipe wall, the medium and the other side of the pipe wall, it is received by another probe. At the same time, the signal transmitted by the second probe is also received by the first probe. Due to the influence of the medium flow, there is a time difference Δt between the two. According to the calculation, the conversion relationship between flow velocity V and time difference Δt can be obtained: V=(C2 / 2L)×Δt, and then the flow value Q can be obtained.

[0003] Existing open channel flow meters face the challenge of changeable outdoor weather conditions during long-term installation and use, and require regular maintenance and replacement of support frames and flow meters. For the installation and application of Parshall flumes in open channel flow meters, the usual practice is to use an arch bracket with the Parshall flume itself as the installation base point and install it above the contraction section. However, due to the significant differences in the specifications and design characteristics of Parshall flumes, especially the diversity of roar channel widths adapted to the main flow of the open channel, and the inconsistency of the oblique angles of the contraction section, these problems have led to the need for the flow meter mounting bracket to be customized according to the actual size of the Parshall flume. This customized requirement not only reduces the adaptability of the mounting bracket, but also significantly increases the complexity and cost of installation, thereby affecting the convenience and efficiency of the mounting bracket. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an ultrasonic open channel flowmeter with an adjustment function to solve the technical problem that the mounting bracket of the flowmeter needs to be customized according to the actual size of the Parshall flume, which reduces the installation adaptability of the mounting bracket and thus reduces the installation convenience of the mounting bracket.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasonic open channel flowmeter with an adjustment function, comprising a throat, a contraction section, a diffusion section and a flowmeter, a support assembly is arranged on the top of the contraction section, the support assembly comprises a support vertical plate, a mounting plate is arranged on the top of the support vertical plate, a support horizontal plate is arranged above the mounting plate, an adjustment mechanism is arranged between the support horizontal plate and the mounting plate, the adjustment mechanism comprises a screw sleeve, screws are arranged at both ends of the screw sleeve, and a plug rod is arranged at the other end of the screw;

[0006] A groove is provided on the bottom surface of the supporting transverse plate, and the supporting transverse plate is fixedly connected to the screw sleeve through a hoop.

[0007] By adopting the above technical solution and the adjustability of the adjustment mechanism, the support assembly can adapt to contraction sections of different sizes and inclination angles, which means that no matter how the size of the Parshall flume changes, the support assembly can meet the installation requirements through simple adjustments without replacing or customizing a new support frame. At the same time, the adjustability of the adjustment mechanism also greatly improves the installation convenience of the flow meter. Since the support assembly can quickly adapt to different Parshall flume sizes, the installation process becomes simpler and more efficient, which not only reduces installation time and cost, but also improves the overall use efficiency and convenience of the flow meter.

[0008] Furthermore, two supporting vertical plates are provided, and the two supporting vertical plates and the supporting horizontal plate form an arched structure as a whole.

[0009] By adopting the above technical solution, a stable support point is provided, so that the supporting cross plate can be firmly installed on the top of the contraction section. This structure ensures that the flow meter has reliable support during the installation process and avoids installation problems caused by unstable support. At the same time, the arched structure enables the support assembly to better adapt to Parshall flumes of different sizes, and can absorb and disperse the stress and vibration from the flow meter and Parshall flume to a certain extent, which helps to protect the flow meter from damage and extend its service life.

[0010] Furthermore, the cross section of the insertion rod is a circular structure, the insertion rod passes through the mounting plate through a through hole, and the insertion rod is fixedly connected to the mounting plate through a mounting nut.

[0011] By adopting the above technical solution, the circular structure of the insertion rod enables it to pass through the through hole on the mounting plate more smoothly, reducing friction and resistance during installation, and improving the smoothness and efficiency of installation. At the same time, through the fixed connection between the mounting nut and the mounting plate, the position of the insertion rod is reliably locked, preventing the support from being unstable or failing due to loosening or displacement during use. This connection method is simple and reliable, easy to install and disassemble, and convenient for maintenance and replacement of parts, thereby improving the reliability and service life of the entire support assembly.

[0012] Furthermore, the supporting vertical plate is fixedly connected to the contraction section via mounting ears.

[0013] By adopting the above technical solution, the supporting vertical plate can be more firmly fixed on the contraction section. This connection method provides additional support points, enhances the stability and reliability of the entire supporting structure. At the same time, the use of mounting ears for connection also simplifies the installation process. The installer only needs to align the mounting ears with the corresponding positions on the contraction section and fix them with appropriate fasteners to complete the installation.

[0014] Furthermore, the adjustment mechanism is used to support and adapt the supporting cross plate, and the adjustment mechanism is provided in two groups.

[0015] By adopting the above technical solution, two sets of adjustment mechanisms jointly support the supporting cross plate, making the support more stable and balanced. This double support structure disperses the weight and pressure of the supporting cross plate and the flowmeter thereon, reduces the risk of excessive force at a single point, and improves the stability and safety of the overall structure. At the same time, the provision of two sets of adjustment mechanisms also enhances the adaptability of the supporting cross plate. Since the two sets of adjustment mechanisms can be adjusted independently, they can more easily adapt to Parshall flumes of different sizes and inclination angles.

[0016] Furthermore, the groove is used to limit the support cross plate and the screw sleeve, and the support cross plate is fixedly connected to the flow meter.

[0017] By adopting the above technical solution, the initial limiting effect between the supporting cross plate and the screw sleeve is achieved. This limiting effect helps to ensure the position accuracy of the supporting cross plate during the installation process, avoiding installation difficulties or instability caused by position offset. At the same time, the fixed connection between the supporting cross plate and the flow meter ensures the stable installation of the flow meter. This connection method enables the flow meter to be firmly fixed on the supporting cross plate.

[0018] Furthermore, a protection box is provided on the top of the flow meter, and the protection box is used to protect the flow meter.

[0019] By adopting the above technical solution, the protective box can effectively protect the flow meter from the influence of the external environment. For example, it can prevent rain, dust, debris, etc. from directly contacting the flow meter, thereby avoiding equipment damage or measurement errors caused by these factors. At the same time, the protective box can also play a certain buffering role. When the flow meter is accidentally impacted or vibrated, the protective box can absorb part of the impact force and reduce direct damage to the flow meter, thereby extending the service life of the flow meter.

[0020] Furthermore, a limiting plate is provided on one side of the supporting vertical plate, and the limiting plate is used for limiting the installation of external data lines and power lines.

[0021] By adopting the above technical solution, the limit plate provides an orderly and fixed installation position for the data cable and the power cable, which avoids problems such as clutter, entanglement or suspension that may occur during installation or use of the lines, thereby ensuring the neatness and safety of the lines. At the same time, through the limiting effect of the limit plate, the direction and layout of the data cable and the power cable are effectively controlled, which not only facilitates subsequent maintenance and management, but also reduces the risk of failure caused by loose, falling off or mutual interference of the lines, thereby improving the stability and reliability of the entire flow meter system.

[0022] Furthermore, the support vertical plates and the support horizontal plates are both made of stainless steel.

[0023] By adopting the above technical solution, the stainless steel material has excellent corrosion resistance. In a humid, rainy environment or an environment with chemical corrosive substances, the stainless steel support vertical plates and support horizontal plates can maintain their structural integrity and beautiful appearance for a long time, and are not easy to rust or corrode, thereby extending the service life of the support assembly. At the same time, the stainless steel material also has high strength and rigidity, which enables the support vertical plates and support horizontal plates to remain stable when bearing the weight of the flow meter and related equipment, and are not easy to deform or damage. This strength and rigidity also improves the seismic resistance of the support assembly, which can reduce the impact of external vibration on the measurement accuracy of the flow meter to a certain extent.

[0024] Furthermore, the supporting vertical plate is of an inclined structure and is consistent with the inclination angle of the contraction section.

[0025] By adopting the above-mentioned technical solution, the support vertical plate can better fit the surface of the contraction section, thereby providing more stable support. Since the inclination angle of the support vertical plate is consistent with that of the contraction section, the contact area between the two is increased, and the friction force is also increased accordingly, which helps to prevent the support vertical plate from sliding or shifting during installation or use. At the same time, the inclined structure of the support vertical plate can also effectively disperse the gravity and pressure generated by the flow meter and related equipment. By transmitting the gravity to the contraction section along the inclination direction of the support vertical plate, the pressure on a single support point can be reduced, thereby improving the stability and safety of the entire support structure.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] 1. The utility model uses an adjustment mechanism to enable the support assembly to flexibly adapt to contraction sections of different inclination angles and sizes. By adjusting the position of the screw in the screw sleeve, the length of the adjustment mechanism can be changed, and then the height and angle of the support cross plate can be adjusted. This flexibility enables the support assembly to adapt to Parshall flumes of different specifications, without the need to customize a support frame of a specific size, thereby improving installation adaptability. At the same time, the adjustability of the adjustment mechanism also improves the installation convenience of the flow meter. Since the support assembly can adapt to Parshall flumes of different sizes, the installer does not need to customize the bracket according to the actual size of each Parshall flume, which reduces the preparation work and customization cost before installation, making the installation process simpler and faster;

[0028] 2. The utility model provides effective external protection for the flow meter by setting up a protective box. The protective box can prevent the flow meter from being directly affected by bad weather, dust, debris and other environmental factors, thereby reducing the risk of damage to the flow meter. At the same time, the protective box also has a certain safety protection function. It can prevent non-professionals from directly contacting the flow meter, avoiding equipment damage or personal injury caused by misoperation or accidental collision, thereby ensuring the safe operation of the flow meter and the safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the support assembly of the utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the support vertical plate of the utility model;

[0032] Figure 4 This is a bottom view structural diagram of the support assembly of the utility model;

[0033] Figure 5 For this utility model Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0034] In the figure: 101, throat; 102, contraction section; 103, diffusion section; 2, support assembly; 201, support vertical plate; 202, mounting plate; 203, support horizontal plate; 204, mounting ear; 3, adjustment mechanism; 301, screw sleeve; 302, screw; 303, plug rod; 304, mounting nut; 401, groove; 402, clamp; 5, flow meter; 6, protection box; 7, limit plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0036] The following describes an embodiment of the utility model based on its overall structure. Embodiment 1:

[0037] An ultrasonic open channel flow meter with regulation function, such as Figure 1-Figure 5 As shown, it includes a throat 101, a contraction section 102, a diffusion section 103 and a flow meter 5. A support assembly 2 is arranged on the top of the contraction section 102. The support assembly 2 includes a support vertical plate 201. A mounting plate 202 is arranged on the top of the support vertical plate 201. A support horizontal plate 203 is arranged above the mounting plate 202. An adjustment mechanism 3 is arranged between the support horizontal plate 203 and the mounting plate 202. The adjustment mechanism 3 includes a screw sleeve 301. Screws 302 are arranged at both ends of the screw sleeve 301. A plug rod 303 is arranged at the other end of the screw 302.

[0038] A groove 401 is provided on the bottom surface of the support cross plate 203, and the support cross plate 203 is fixedly connected to the screw sleeve 301 by a clamp 402. Due to the adjustability of the adjustment mechanism 3, the support assembly 2 can adapt to the contraction sections 102 of different sizes and inclination angles, which means that no matter how the size of the Parshall trough changes, the support assembly 2 can meet the installation requirements through simple adjustments without replacing or customizing a new support frame. At the same time, the adjustability of the adjustment mechanism 3 also greatly improves the installation convenience of the flow meter 5. Since the support assembly 2 can quickly adapt to different Parshall trough sizes, the installation process becomes simpler and more efficient, which not only reduces the installation time and cost, but also improves the overall use efficiency and convenience of the flow meter 5.

[0039] See also Figure 2 , Figure 3 , Figure 4 There are two supporting vertical plates 201, and the two supporting vertical plates 201 and the supporting horizontal plate 203 are overall in an arched structure, providing a stable supporting point, so that the supporting horizontal plate 203 can be firmly installed on the top of the contraction section 102. This structure ensures that the flow meter 5 has reliable support during the installation process and avoids installation problems caused by unstable support. At the same time, the arched structure enables the support assembly 2 to better adapt to Parshall flumes of different sizes, and can absorb and disperse the stress and vibration from the flow meter 5 and the Parshall flume to a certain extent, which helps to protect the flow meter 5 from damage and extend its service life.

[0040] See also Figure 5The cross-section of the plug rod 303 is a circular structure. The plug rod 303 passes through the mounting plate 202 through the through hole. The plug rod 303 is fixedly connected to the mounting plate 202 through the mounting nut 304. The circular structure of the plug rod 303 enables it to pass through the through hole on the mounting plate 202 more smoothly, reducing friction and resistance during the installation process, and improving the smoothness and efficiency of the installation. At the same time, through the fixed connection between the mounting nut 304 and the mounting plate 202, the position of the plug rod 303 is reliably locked, preventing the problem of unstable support or failure due to loosening or displacement during use. This connection method is simple and reliable, easy to install and disassemble, convenient for maintenance and replacement of parts, and improves the reliability and service life of the entire support assembly 2.

[0041] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The support vertical plate 201 is fixedly connected to the contraction section 102 through the mounting ear 204. The support vertical plate 201 can be more firmly fixed on the contraction section 102. This connection method provides additional support points, thereby enhancing the stability and reliability of the entire support structure. At the same time, the use of the mounting ear 204 for connection also simplifies the installation process. The installer only needs to align the mounting ear 204 with the corresponding position on the contraction section 102 and fix it with appropriate fasteners to complete the installation.

[0042] See also Figure 2 , Figure 3 , Figure 4 The adjusting mechanism 3 is used to support and adapt the supporting cross plate 203. There are two groups of adjusting mechanisms 3. The two groups of adjusting mechanisms 3 jointly support the supporting cross plate 203, making the support more stable and balanced. This double support structure disperses the weight and pressure of the supporting cross plate 203 and the flow meter 5 thereon, reduces the risk of excessive force at a single point, and improves the stability and safety of the overall structure. At the same time, the two groups of adjusting mechanisms 3 also enhance the adaptability of the supporting cross plate 203. Since the two groups of adjusting mechanisms 3 can be adjusted independently, they can more easily adapt to Parshall flumes of different sizes and inclination angles.

[0043] See also Figure 4 , Figure 5 The groove 401 is used to limit the support cross plate 203 and the screw sleeve 301. The support cross plate 203 is fixedly connected to the flow meter 5, realizing the initial limit between the support cross plate 203 and the screw sleeve 301. This limiting effect helps to ensure the position accuracy of the support cross plate 203 during the installation process, avoiding installation difficulties or instability caused by position offset. At the same time, the fixed connection between the support cross plate 203 and the flow meter 5 ensures the stable installation of the flow meter 5. This connection method enables the flow meter 5 to be firmly fixed on the support cross plate 203. Embodiment 2:

[0044] See also Figure 2 , Figure 3 , Figure 4 A protective box 6 is provided on the top of the flow meter 5. The protective box 6 is used to protect the flow meter 5. The protective box 6 can effectively protect the flow meter 5 from the influence of the external environment. For example, it can prevent rain, dust, debris, etc. from directly contacting the flow meter 5, thereby avoiding equipment damage or measurement errors caused by these factors. At the same time, the protective box 6 can also play a certain buffering role. When the flow meter 5 is accidentally impacted or vibrated, the protective box 6 can absorb part of the impact force and reduce direct damage to the flow meter 5, thereby extending the service life of the flow meter 5.

[0045] See also Figure 1 A limit plate 7 is provided on one side of the supporting vertical plate 201. The limit plate 7 is used for limiting the installation of external data lines and power lines. The limit plate 7 provides an orderly and fixed installation position for the data lines and the power lines, which avoids the problems of clutter, entanglement or suspension that may occur in the lines during installation or use, thereby ensuring the neatness and safety of the lines. At the same time, through the limiting effect of the limit plate 7, the direction and layout of the data lines and the power lines are effectively controlled, which not only facilitates subsequent maintenance and management, but also reduces the risk of failures caused by loose lines, falling off or mutual interference, thereby improving the stability and reliability of the entire flow meter 5 system.

[0046] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The support vertical plate 201 and the support horizontal plate 203 are both made of stainless steel. Stainless steel has excellent corrosion resistance. In a humid, rainy environment or an environment with chemical corrosive substances, the stainless steel support vertical plate 201 and the support horizontal plate 203 can maintain their structural integrity and beautiful appearance for a long time, and are not easy to rust or corrode, thereby extending the service life of the support component 2. At the same time, the stainless steel material also has high strength and rigidity, which enables the support vertical plate 201 and the support horizontal plate 203 to remain stable when bearing the weight of the flow meter 5 and its related equipment, and is not easy to deform or damage. This strength and rigidity also improves the seismic resistance of the support component, and can reduce the impact of external vibration on the measurement accuracy of the flow meter 5 to a certain extent.

[0047] See also Figure 1 , Figure 2 , Figure 3 , Figure 4The support vertical plate 201 is of an inclined structure and is consistent with the inclination angle of the contraction section 102, so that the support vertical plate 201 can better fit the surface of the contraction section 102, thereby providing a more stable support. Since the inclination angles of the support vertical plate 201 and the contraction section 102 are consistent, the contact area between the two is increased, and the friction force is also increased accordingly, which helps to prevent the support vertical plate 201 from sliding or shifting during installation or use. At the same time, the inclined structure of the support vertical plate 201 can also effectively disperse the gravity and pressure generated by the flow meter 5 and its related equipment. By transmitting the gravity to the contraction section 102 along the inclination direction of the support vertical plate 201, the pressure on a single support point can be reduced, thereby improving the stability and safety of the entire support structure.

[0048] The implementation principle of the utility model is as follows: first, the two support vertical plates 201 are fixedly connected to the top of the contraction section 102, then, the screws 302 at both ends of the screw sleeve 301 are rotated, and the length of the adjustment mechanism 3 is changed by using the threaded connection between the screw 302 and the screw sleeve 301, until the insertion rods 303 at both ends are opposite to the through holes opened on the surface of the mounting plate 202, and the insertion rods 303 pass through the mounting plate 202 through the through holes, and then, the position of the adjustment mechanism 3 is fixed by using the threaded connection between the mounting nut 304 and the insertion rod 303, and the other set of adjustment mechanisms is fixed in the same way as above. The adjusting mechanism 3 is installed, and then the groove 401 on the bottom surface of the supporting cross plate 203 is aligned with the screw sleeve 301, and the position of the supporting cross plate 203 is initially limited by the structure of the groove 401. After that, the screw sleeve 301 and the supporting cross plate 203 are installed and fixed by using the clamp 402 structure. During the installation of the support assembly 2, the adjustability of the adjusting mechanism 3 is utilized, which is beneficial to make the support assembly 2 more suitable for the installation operation of Parshall flumes of different sizes according to the inclination angle and size of the contraction section 102, thereby improving the installation convenience of the flow meter 5.

[0049] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0050] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An ultrasonic open channel flow meter with adjustment function, characterized in that: The invention comprises a throat (101), a contraction section (102), a diffusion section (103) and a flow meter (5), wherein a support assembly (2) is arranged at the top of the contraction section (102), wherein the support assembly (2) comprises a support vertical plate (201), wherein a mounting plate (202) is arranged at the top of the support vertical plate (201), wherein a support horizontal plate (203) is arranged above the mounting plate (202), wherein an adjustment mechanism (3) is arranged between the support horizontal plate (203) and the mounting plate (202), wherein the adjustment mechanism (3) comprises a screw sleeve (301), wherein screws (302) are arranged at both ends of the screw sleeve (301), and an insertion rod (303) is arranged at the other end of the screw (302); A groove (401) is provided on the bottom surface of the supporting transverse plate (203), and the supporting transverse plate (203) is fixedly connected to the screw sleeve (301) via a clamp (402).

2. The ultrasonic open channel flowmeter with adjustment function according to claim 1, characterized in that: Two supporting vertical plates (201) are provided, and the two supporting vertical plates (201) and the supporting horizontal plate (203) are in an overall arched structure.

3. The ultrasonic open channel flowmeter with regulating function according to claim 1, characterized in that: The cross section of the insertion rod (303) is a circular structure; the insertion rod (303) passes through the mounting plate (202) through a through hole; and the insertion rod (303) is fixedly connected to the mounting plate (202) via a mounting nut (304).

4. The ultrasonic open channel flowmeter with regulating function according to claim 1, characterized in that: The supporting vertical plate (201) is fixedly connected to the contraction section (102) via a mounting ear (204).

5. The ultrasonic open channel flowmeter with regulating function according to claim 1, characterized in that: The adjustment mechanism (3) is used to support and adapt the supporting transverse plate (203), and two groups of the adjustment mechanism (3) are provided.

6. The ultrasonic open channel flowmeter with regulating function according to claim 1, characterized in that: The groove (401) is used for limiting the position of the supporting transverse plate (203) and the screw sleeve (301), and the supporting transverse plate (203) is fixedly connected to the flow meter (5).

7. The ultrasonic open channel flowmeter with regulating function according to claim 1, characterized in that: A protection box (6) is provided on the top of the flow meter (5), and the protection box (6) is used to protect the flow meter (5).

8. The ultrasonic open channel flowmeter with regulating function according to claim 1, characterized in that: A limiting plate (7) is provided on one side of the supporting vertical plate (201), and the limiting plate (7) is used for limiting the installation of external data lines and power lines.

9. The ultrasonic open channel flowmeter with regulating function according to claim 1, characterized in that: The supporting vertical plate (201) and the supporting horizontal plate (203) are both made of stainless steel.

10. The ultrasonic open channel flowmeter with regulating function according to claim 1, characterized in that: The supporting vertical plate (201) is in an inclined structure, and has an inclination angle consistent with that of the contraction section (102).

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