Rotating wheel flowmeter convenient to replace and maintain

Abstract

The utility model discloses a runner flowmeter convenient to replace and maintain in the flowmeter field, which comprises a flowmeter body and a magnetic sensitive sensor, the magnetic sensitive sensor is detachably arranged at the top of the flowmeter body, the flowmeter body comprises a main body part and a fluid pipeline, the fluid pipeline transversely penetrates through the main body part, and the magnetic sensitive sensor is detachably arranged at the top of the main body part. A mounting channel is formed in the top of the main body part, the mounting channel is communicated with the fluid pipeline, and a rotating wheel is detachably arranged in the mounting channel. The rotary wheel flow meter solves the problems that an existing rotary wheel flow meter is poor in flow measurement precision, and a rotary wheel and a magnetic sensitive sensor cannot be independently replaced, the rotary wheel can be fixed in the installation channel, so that the flow K coefficient is fixed, the measurement precision can be effectively guaranteed, and the measurement precision is improved. And the rotating wheel and the magnetic sensitive sensor can be independently replaced, so that the maintenance cost is reduced, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a rotary flow meter which is easy to replace and maintain. Background Art

[0002] A paddlewheel flowmeter is a device used to measure the volumetric flow rate of a fluid. Its working principle is based on the rotation of the impeller when the measured fluid flows through it. A paddlewheel flowmeter usually consists of a paddlewheel with multiple blades. The blades are usually evenly distributed and vary depending on the specific design. The impeller is placed in the flowmeter body. The fluid passes through the flowmeter body, pushing the blades of the impeller, and the blades drive the impeller to rotate. A magnetically sensitive sensor is installed above the impeller. When the fluid passes through the impeller, the impeller starts to rotate. The sensor detects and receives the rotation signal and converts the rotation signal into an electrical signal. The transmitter of the paddlewheel flowmeter receives the signal from the sensor and calculates the volumetric flow rate of the fluid passing through the paddlewheel flowmeter based on the frequency and speed of the rotor rotation.

[0003] Most existing rotor flowmeters are of an insertable structure, comprising a flowmeter body, a rotor, and a magnetically sensitive sensor. The flowmeter body is located on top of the magnetically sensitive sensor, and the rotor is located at the bottom of the magnetically sensitive sensor. The rotor and the magnetically sensitive sensor are combined into an integrated structure and plugged into the flowmeter body. However, the insertion depth of the flowmeter body is prone to accuracy errors, and the flow state of the fluid will change when flowing through the rotor, thereby affecting the rotational speed of the rotor, which in turn causes the flow K coefficient to drift, and thus leads to a decrease in flow measurement accuracy. In addition, once the rotor is damaged, it cannot be replaced without damage; even if the rotor can be replaced, it will also damage the magnetically sensitive sensor to varying degrees. In addition, once the magnetically sensitive sensor device is damaged, it cannot be replaced alone and must be replaced together with the flowmeter body and even the rotor, which undoubtedly increases maintenance costs and time costs.

[0004] The above defects need to be solved urgently. Utility Model Content

[0005] In order to solve the problems of poor flow measurement accuracy of existing rotor flowmeters and inability to replace the rotor and magnetic sensitive sensor separately, the utility model provides a rotor flowmeter that is easy to replace and maintain.

[0006] The technical solution of this utility model is as follows:

[0007] A rotary flowmeter that is easy to replace and maintain includes a flowmeter body and a magnetically sensitive sensor. The magnetically sensitive sensor is detachably arranged on the top of the flowmeter body. The flowmeter body includes a main body and a fluid pipeline. The fluid pipeline runs horizontally through the main body. An installation channel is provided on the top of the main body. The installation channel is connected to the fluid pipeline, and a rotary wheel is detachably arranged in the installation channel.

[0008] According to the above-mentioned solution of the utility model, the rotating wheel includes a rotating shaft and a wheel body, the wheel body is sleeved on the outside of the rotating shaft, a first mounting platform is provided in the mounting channel, a mounting groove is provided on the first mounting platform, and the end of the rotating shaft is provided in the mounting groove.

[0009] According to the above-mentioned solution of the utility model, the first mounting platform includes a first curved surface, a first flat surface, and a first vertical surface. The first curved surface and the first vertical surface are arranged opposite to each other, the first flat surface is arranged on the top of the first curved surface and the first vertical surface, the first curved surface is connected to the side wall of the mounting channel, and the mounting groove is arranged on the first flat surface.

[0010] According to the above solution of the utility model, the bottom of the magnetically sensitive sensor protrudes outward to form a second mounting platform, and the second mounting platform abuts against the first mounting platform.

[0011] According to the above solution of the present invention, a limiting protrusion is provided on the second mounting platform, and the limiting protrusion abuts against the rotating shaft.

[0012] According to the above-mentioned solution of the utility model, the second mounting platform includes a second curved surface, a second flat surface, and a second vertical surface. The second curved surface is arranged opposite to the second vertical surface. The second flat surface is arranged at the bottom of the second curved surface and the second vertical surface. The second curved surface is used to abut against the side wall of the mounting channel, and the limiting protrusion is arranged on the second flat surface.

[0013] According to the above-mentioned solution of the utility model, first vertical sections are provided on opposite sides of the end of the rotating shaft, and second vertical sections are provided corresponding to the mounting groove. The first vertical sections abut against the second vertical sections to limit the rotating shaft.

[0014] According to the above solution of the utility model, the magnetically sensitive sensor is provided with a plurality of first connecting holes, and the main body is correspondingly provided with a plurality of second connecting holes, and the first connecting member passes through the first connecting holes and cooperates with the second connecting holes.

[0015] According to the above-mentioned solution, the utility model further includes a transmitter secondary meter arranged on the top of the magnetically sensitive sensor, the bottom of the transmitter secondary meter protrudes outward to form a connecting protrusion, and the top of the magnetically sensitive sensor is correspondingly provided with a connecting groove, and the connecting protrusion is matched and connected with the connecting groove.

[0016] According to the above solution of the utility model, a third connecting hole is provided on the connecting protrusion, a fourth connecting hole is provided on the magnetic sensitive sensor, and the second connecting member passes through the third connecting hole and cooperates with the fourth connecting hole.

[0017] The utility model according to the above solution has the following beneficial effects:

[0018] In the aforementioned easily replaceable and repairable rotor flowmeter, a removable rotor is installed within the mounting channel of the flowmeter body, allowing the rotor to be fixed within the mounting channel, thereby maintaining a constant flow rate K-factor and effectively ensuring measurement accuracy. Furthermore, if the rotor becomes damaged, it can be replaced independently without damaging the magnetically sensitive sensor, thereby extending the service life of the flowmeter.

[0019] In addition, the magnetic sensitive sensor is detachably arranged on the top of the flow meter body. When the magnetic sensitive sensor fails, it can be replaced alone without replacing the entire flow meter, which reduces maintenance costs and improves maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 This is one of the split diagrams of the utility model;

[0023] Figure 4 This is the second split diagram of the utility model;

[0024] Figure 5 It is a structural diagram of the flow meter body;

[0025] Figure 6 is a schematic diagram of the structure of the runner;

[0026] Figure 7 This is one of the structural diagrams of the magnetic sensitive sensor;

[0027] Figure 8 This is the second structural diagram of the magnetic sensitive sensor;

[0028] Figure 9 This is a structural diagram of the transmitter secondary meter.

[0029] In the figure, 1, flow meter body; 11, main body; 12, fluid conduit; 13, mounting channel; 14, second connecting hole; 15, first mounting platform; 151, mounting groove; 1511, second vertical section; 152, first arc surface; 153, first flat surface; 154, first vertical surface;

[0030] 2. Magnetic sensitive sensor; 21. First connecting hole; 22. Second mounting platform; 221. Second curved surface; 222. Second flat surface; 223. Second vertical surface; 23. Position limiting protrusion; 24. Connecting groove; 25. Fourth connecting hole;

[0031] 3. Rotating wheel; 31. Rotating shaft; 311. First vertical section; 32. Wheel body;

[0032] 4. Transmitter secondary meter; 41. Connection protrusion; 42. Third connection hole. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] like Figures 1 to 4 As shown, the utility model provides a rotary flowmeter that is easy to replace and maintain, including a flowmeter body 1 and a magnetically sensitive sensor 2. The magnetically sensitive sensor 2 is detachably arranged on the top of the flowmeter body 1. When the magnetically sensitive sensor 2 fails, it can be replaced alone without replacing the entire flowmeter, thereby reducing maintenance costs and improving maintenance efficiency.

[0035] like Figures 3 and 4 As shown, in this embodiment, the flowmeter body 1 includes a main body 11 and a fluid conduit 12. The fluid conduit 12 transversely extends through the main body 11. A mounting channel 13 is provided at the top of the main body 11 and communicates with the fluid conduit 12. A removable runner 3 is disposed within the mounting channel 13, allowing the position of the runner 3 to be fixed within the mounting channel 13. This stabilizes the flow rate K coefficient and effectively ensures measurement accuracy. Furthermore, if the runner 3 is damaged, it can be replaced separately without damaging the magnetically sensitive sensor 2, thereby extending the service life of the flowmeter.

[0036] like Figure 5 、 Figure 7 、 Figure 8As shown, in this embodiment, the magnetically sensitive sensor 2 is provided with a plurality of first connection holes 21, and the main body 11 of the flowmeter body 1 is correspondingly provided with a plurality of second connection holes 14. A first connecting member (not shown) passes through the first connection holes 21 and cooperates with the second connection holes 14, thereby achieving a detachable connection between the magnetically sensitive sensor 2 and the flowmeter body 1, facilitating routine inspection and maintenance. In addition, the first connecting member can be designed as a screw. Of course, in actual design, the structure of the first connecting member can be designed according to actual needs.

[0037] like Figure 3 、 Figure 5 、 Figure 6 As shown, in this embodiment, the runner 3 includes a rotating shaft 31 and a wheel body 32. The wheel body 32 is sleeved on the outside of the rotating shaft 31 so that the wheel body 32 can rotate about the rotating shaft 31. In addition, a first mounting platform 15 is provided in the mounting channel 13. The first mounting platform 15 is provided with a mounting groove 151. The end of the rotating shaft 31 is disposed in the mounting groove 151. This not only provides precise positioning for the rotating shaft 31, but also limits the axial movement of the rotating shaft 31, ensuring the stability and accuracy of the runner 3 during rotation, helping to maintain a constant flow rate K coefficient and reducing measurement errors caused by changes in the position of the runner 3. In addition, the runner 3 is detachably mounted through the cooperation between the rotating shaft 31 and the mounting groove 151. When the runner 3 is damaged or needs to be cleaned, the user can easily remove it from the mounting channel 13 without disassembling the entire flowmeter. This not only reduces the difficulty of maintenance, but also improves maintenance efficiency and reduces production losses caused by downtime for maintenance.

[0038] like Figure 5 、 Figure 6 As shown, in this embodiment, first vertical sections 311 are provided on opposite sides of the end of the rotating shaft 31 of the rotating wheel 3, and second vertical sections 1511 are provided correspondingly in the mounting groove 151. The first vertical sections 311 abut against the second vertical sections 1511 to limit the position of the rotating shaft 31. When the first vertical sections 311 abut against the second vertical sections 1511, the position of the rotating shaft 31 within the mounting groove 151 is ensured to be accurate, thereby improving the positioning accuracy and stability of the entire system, and helping to prevent the rotating shaft 31 from shifting or shaking during installation or use, thereby improving the overall structural strength of the system.

[0039] like Figure 5As shown, in this embodiment, the first mounting platform 15 in the mounting channel 13 includes a first curved surface 152, a first flat surface 153, and a first vertical surface 154. The first curved surface and the first vertical surface 154 are arranged opposite to each other, and the first flat surface 153 is arranged on the top of the first curved surface and the first vertical surface 154. The first curved surface is connected to the side wall of the mounting channel 13, which increases the contact area between the mounting platform and the channel side wall, thereby improving the stability of the installation. The mounting groove 151 is arranged on the first flat surface 153 to facilitate the installation and disassembly of the wheel 3.

[0040] like Figures 7 and 8 As shown, in this embodiment, the bottom of the magnetically sensitive sensor 2 protrudes outward to form a second mounting platform 22. The second mounting platform 22 abuts the first mounting platform 15, which can increase the stability of the sensor installation and help prevent the magnetically sensitive sensor 2 from loosening or shifting due to external factors such as vibration and impact during use, thereby improving the stability and reliability of the entire flowmeter. In addition, the design of the second mounting platform 22 can make the installation of the magnetically sensitive sensor 2 more convenient. By aligning and securing the second mounting platform 22 with the first mounting platform 15, the installer can quickly complete the sensor installation work, improving assembly efficiency.

[0041] like Figure 4 、 Figure 7 、 Figure 8 As shown, in this embodiment, a limiting protrusion 23 is provided on the second mounting platform 22, and the limiting protrusion 23 abuts against the rotating shaft 31 of the rotating wheel 3. The mounting groove 151 on the first mounting platform 15 cooperates with the limiting protrusion 23, so that the rotating shaft 31 of the rotating wheel 3 is limited in the mounting groove 151, which can effectively prevent the rotating wheel 3 from deflecting or shaking during rotation, thereby enhancing the stability of the entire structure.

[0042] like Figures 7 and 8 As shown, in this embodiment, the second mounting platform 22 includes a second curved surface 221, a second flat surface 222, and a second vertical surface 223. The second curved surface 221 and the second vertical surface 223 are arranged opposite each other, and the second flat surface 223 is arranged at the bottom of the second curved surface 221 and the second vertical surface 223. The second curved surface 221 is used to abut the side wall of the mounting channel 13, which helps to reduce gaps during installation and improve the stability and accuracy of installation. In addition, the limiting protrusion 23 is provided on the second flat surface 222, which makes it easier for the installer to abut the limiting protrusion 23 with the rotating wheel 3, simplifying the installation process and reducing installation time and cost.

[0043] like Figure 3 、 Figure 9As shown, in this embodiment, a transmitter secondary meter 4 is provided on the top of the magnetic sensitive sensor 2. The bottom of the transmitter secondary meter 4 protrudes outward to form a connecting protrusion 41. A connecting groove 24 is correspondingly provided on the top of the magnetic sensitive sensor 2. The connecting protrusion 41 is connected to the connecting groove 24 in a coordinated manner. The installer can easily align and install the transmitter secondary meter 4 on the top of the magnetic sensitive sensor 2 without the need for complex positioning and adjustment work, which greatly simplifies the installation process and improves installation efficiency. Specifically, a third connecting hole 42 is provided on the connecting protrusion 41, and a fourth connecting hole 25 is provided on the magnetic sensitive sensor 2. The second connecting member (not shown in the figure) passes through the third connecting hole 42 and cooperates with the fourth connecting hole 25, simplifying the disassembly process. Only the connecting member needs to be loosened, without the need for complex tools and steps. In addition, the second connecting member can be designed as a screw. Of course, in actual design, the structure of the second connecting member can be designed according to actual needs.

[0044] When the present invention is in use, the fluid flows from one end of the fluid channel to the other end, thereby driving the wheel body 32 of the runner 3 to rotate. The magnetically sensitive sensor 2 detects and receives the rotation signal of the rotation and converts the rotation signal into an electrical signal. The transmitter secondary meter 4 receives the signal of the magnetically sensitive sensor 2 and calculates the volume flow rate of the fluid passing through the runner 3 flow meter based on the frequency and speed of its rotor rotation.

[0045] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

[0046] The above is an exemplary description of the present utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the present utility model patent is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present utility model patent, or the concept and technical solution of the present utility model patent are directly applied to other occasions without improvement, they are all within the scope of protection of the present utility model.

Claims

1. A rotary flow meter that is easy to replace and maintain, characterized in that: The flowmeter comprises a flowmeter body and a magnetically sensitive sensor, wherein the magnetically sensitive sensor is detachably arranged on the top of the flowmeter body. The flowmeter body comprises a main body and a fluid pipeline, wherein the fluid pipeline runs transversely through the main body. An installation channel is provided on the top of the main body, wherein the installation channel is connected to the fluid pipeline, and a runner is detachably provided in the installation channel.

2. The rotary flowmeter that is easy to replace and maintain according to claim 1 is characterized in that: The rotating wheel includes a rotating shaft and a wheel body. The wheel body is sleeved on the outside of the rotating shaft. A first mounting platform is provided in the mounting channel. A mounting groove is provided on the first mounting platform. The end of the rotating shaft is provided in the mounting groove.

3. The rotary flowmeter that is easy to replace and maintain according to claim 2 is characterized in that: The first mounting platform includes a first curved surface, a first flat surface, and a first vertical surface. The first curved surface is arranged opposite to the first vertical surface. The first flat surface is arranged on the top of the first curved surface and the first vertical surface. The first curved surface is connected to the side wall of the mounting channel, and the mounting groove is arranged on the first flat surface.

4. The rotary flowmeter that is easy to replace and maintain according to claim 3 is characterized in that: The bottom of the magnetically sensitive sensor protrudes outward to form a second mounting platform, and the second mounting platform abuts against the first mounting platform.

5. The rotary flowmeter that is easy to replace and maintain according to claim 4 is characterized in that: A limiting protrusion is provided on the second mounting platform, and the limiting protrusion abuts against the rotating shaft.

6. The rotary flow meter that is easy to replace and maintain according to claim 5, characterized in that: The second mounting platform includes a second curved surface, a second flat surface, and a second vertical surface. The second curved surface is arranged opposite to the second vertical surface. The second flat surface is arranged at the bottom of the second curved surface and the second vertical surface. The second curved surface is used to abut against the side wall of the mounting channel, and the limiting protrusion is arranged on the second flat surface.

7. The rotary flowmeter that is easy to replace and maintain according to claim 2, characterized in that: The ends of the rotating shaft are provided with first vertical sections on opposite sides, and the mounting groove is correspondingly provided with second vertical sections, and the first vertical sections abut against the second vertical sections to limit the rotating shaft.

8. The rotary flowmeter that is easy to replace and maintain according to claim 1 is characterized in that: The magnetically sensitive sensor is provided with a plurality of first connecting holes, and the main body is correspondingly provided with a plurality of second connecting holes. The first connecting member passes through the first connecting holes and matches with the second connecting holes.

9. The rotary flowmeter that is easy to replace and maintain according to claim 1, characterized in that: It also includes a transmitter secondary meter arranged on the top of the magnetically sensitive sensor, the bottom of the transmitter secondary meter protrudes outward to form a connecting convex portion, the top of the magnetically sensitive sensor is correspondingly provided with a connecting groove, and the connecting convex portion is matched and connected with the connecting groove.

10. The rotary flowmeter that is easy to replace and maintain according to claim 9, characterized in that: A third connecting hole is provided on the connecting protrusion, a fourth connecting hole is provided on the magnetic sensitive sensor, and the second connecting member passes through the third connecting hole and matches with the fourth connecting hole.

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