High-precision multi-electrode insertion electromagnetic flow velocity sensor
Through improved fixed structure and flow rate detection components, the problem of unstable installation of traditional electromagnetic flow rate sensors is solved, and high-precision flow rate measurement and efficient sealing are achieved, ensuring measurement accuracy and system stability.
Patent Information
- Application Number
- CN202422251728.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-13
AI Technical Summary
Traditional plug-in electromagnetic flow rate sensors are difficult to be installed and fixed accurately and stably, resulting in unstable or inaccurate measurement data, especially when used for a long time or affected by external forces, which is prone to loosening and shifting.
The design of components such as fixing bolts, fixing rings, movable rings, support plates, etc. is adopted, combined with sealing rings and springs, to ensure stable installation of the sensor, and flow rate detection is carried out through insulating detection rods and electromagnetic coils to achieve efficient sealing.
The sensor is installed stably and accurately, ensuring the accuracy of the measurement data and the stability of the system, reducing the risk of leakage, and providing high-precision flow velocity measurement results.
Smart Images
Figure CN223051351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic flow velocity sensors, in particular to a high-precision multi-electrode inserted electromagnetic flow velocity sensor. Background Technique
[0002] An electromagnetic flow velocity sensor is a device for measuring the flow velocity of a fluid, which is based on the principle of electromagnetic induction. When a conductor (usually the fluid in the measuring tube) moves in a magnetic field, an electromotive force is generated in the conductor, and this electromotive force is proportional to the flow velocity. Therefore, by measuring the electromotive force, the flow velocity of the fluid can be determined. The high-precision multi-electrode inserted electromagnetic flow velocity sensor has significant advantages in terms of measurement accuracy, stability and reliability. It uses multiple electrodes and processes the signals of each electrode through computer algorithms to effectively eliminate external interference and improve the measurement accuracy. The inserted design enables the sensor to be conveniently installed in the pipeline without shutdown maintenance.
[0003] The traditional inserted electromagnetic flow velocity sensor measures the flow velocity by directly inserting it into the pipeline where the fluid flows. When in use, it is first necessary to ensure that the sensor is concentric with the pipeline to avoid measurement errors caused by eccentricity. The sensor internally contains a magnetic field and multiple electrodes. When the fluid flows, the relative movement between the magnetic field and the fluid generates an induced electromotive force, which is proportional to the flow velocity. By measuring this electromotive force, the flow velocity of the fluid can be calculated. In order to obtain accurate measurement results, the electrode design of the sensor needs to consider the Reynolds number and turbulence characteristics of the fluid to ensure the uniformity of the electromagnetic field and the linear response of the sensor.
[0004] For the traditional inserted electromagnetic flow velocity sensor, due to the limited choice of installation position, it is difficult to accurately and stably install and fix the sensor. When in long-term use or affected by external forces, loosening and displacement will occur, resulting in unstable or inaccurate measurement data. Content of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a high-precision multi-electrode inserted electromagnetic flow velocity sensor, aiming to improve the problem that it is difficult to accurately and stably install and fix the traditional inserted electromagnetic flow velocity sensor, and loosening and displacement will occur when in long-term use or affected by external forces, resulting in unstable or inaccurate measurement data.
[0006] To achieve the above object, the present utility model provides the following technical solutions: A high-precision multi-electrode inserted electromagnetic flow sensor, comprising a pipeline, a mounting seat is fixedly connected to the top of the pipeline, a connecting flange is attached to the upper surface of the mounting seat, a mounting hole is provided inside the mounting seat, a fixing bolt is provided inside the connecting flange, the outer wall of the fixing bolt is threadedly connected inside the mounting seat, a fixing ring is fixedly connected to the outer wall of the connecting flange, the outer wall of the fixing ring is attached to the outer wall of the pipeline, a hinge is fixedly connected to one end of the fixing ring, a movable ring is fixedly connected to the outer wall of the hinge, the outer wall of the movable ring is attached to the outer wall of the pipeline, a fixing component is provided at one end of the movable ring, the fixing component is used for fixing the fixing ring and the movable ring, one end of the movable ring is attached to one end of the fixing ring, and support plates are fixedly connected to the outer walls of both the fixing ring and the movable ring, and the outer walls of the support plates are attached to the outer wall of the pipeline.
[0007] Further, the fixing component includes a screw rod, one end of the screw rod is rotatably connected to one end of the movable ring, the outer wall of the screw rod is slidably connected inside the fixing ring, a nut is threadedly connected to the outer wall of the screw rod, and the lower surface of the nut is attached to one end of the movable ring.
[0008] Further, a sensor housing is fixedly connected inside the connecting flange, and an insulation detection rod is fixedly connected inside the sensor housing.
[0009] Further, both the sensor housing and the insulation detection rod are slidably connected inside the pipeline, and a plurality of electromagnetic coils are fixedly connected inside the insulation detection rod.
[0010] Further, two symmetrically arranged electrode 1s are provided below the electromagnetic coils, and the outer walls of the two symmetrically arranged electrode 1s are fixedly connected inside the insulation detection rod.
[0011] Further, an electrode 2 is provided on the outer wall of the electromagnetic coil, the electrode 2 is fixedly connected inside the insulation detection rod, and a magnetic conduction block is fixedly connected inside the insulation detection rod.
[0012] Further, a sealing ring is slidably connected inside the pipeline, the outer wall of the sealing ring is slidably connected inside the connecting flange, and a telescopic rod is fixedly connected inside the sealing ring.
[0013] Further, a spring is sleeved on the outer wall of the telescopic rod, one end of the spring is fixedly connected inside the sealing ring, and the other end of the spring is fixedly connected inside the pipeline.
[0014] The present utility model has the following beneficial effects:
[0015] 1. In the present utility model, first, the mounting seat is fitted with the connecting flange, and then initially fixed with the fixing bolts and mounting holes. Next, the movable ring is pulled to further stably fix the sensor housing in cooperation with the fixing ring, hinge, screw, nut, and support plate, solving the problem that the traditional plug-in electromagnetic flow velocity sensor is difficult to accurately and stably install and fix the sensor, resulting in unstable or inaccurate measurement data, achieving stable and accurate installation, enabling the sensor to remain stable during long-term use, being able to accurately measure the flow velocity, and providing high-precision data.
[0016] 2. In the present utility model, first, the sensor housing is powered on, and then the flow velocity is detected in cooperation with the insulation detection rod, electromagnetic coil, and multiple electrode one and electrode two. Next, a sealing ring is arranged inside the pipeline in cooperation with the spring to achieve sealing of the connecting flange, achieving high-precision flow velocity detection and efficient sealing, ensuring the accuracy of the measurement data, reducing the leakage risk at the same time, and improving the stability and safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional structural schematic diagram of a high-precision multi-electrode inserted electromagnetic flow velocity sensor proposed by the present utility model;
[0018] Figure 2 is a structural schematic diagram of one side of the mounting seat of a high-precision multi-electrode inserted electromagnetic flow velocity sensor proposed by the present utility model;
[0019] Figure 3 is a structural schematic diagram of the inside of the insulation detection rod of a high-precision multi-electrode inserted electromagnetic flow velocity sensor proposed by the present utility model;
[0020] Figure 4 is a structural schematic diagram of the inside of the pipeline of a high-precision multi-electrode inserted electromagnetic flow velocity sensor proposed by the present utility model.
[0021] LEGEND DESCRIPTION:
[0022] 1. Pipeline; 2. Mounting seat; 3. Connecting flange; 4. Fixing bolt; 5. Mounting hole; 6. Fixing ring; 7. Movable ring; 8. Screw; 9. Nut; 10. Hinge; 11. Support plate; 12. Sensor housing; 13. Insulation detection rod; 14. Electromagnetic coil; 15. Electrode one; 16. Electrode two; 17. Magnetic conduction block; 18. Sealing ring; 19. Telescopic rod; 20. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0024] Referring to Figure 1 and Figure 2 , an embodiment provided by the present invention: a high-precision multi-electrode insertion electromagnetic flow velocity sensor, including a pipeline 1, a mounting seat 2 is fixedly connected to the top of the pipeline 1, a connecting flange 3 is attached to the upper surface of the mounting seat 2, a mounting hole 5 is provided inside the mounting seat 2, a fixing bolt 4 is provided inside the connecting flange 3, the outer wall of the fixing bolt 4 is threadedly connected inside the mounting seat 2, a fixing ring 6 is fixedly connected to the outer wall of the connecting flange 3, the outer wall of the fixing ring 6 is attached to the outer wall of the pipeline 1, one end of the fixing ring 6 is fixedly connected to a hinge 10, the outer wall of the hinge 10 is fixedly connected to a movable ring 7, the outer wall of the movable ring 7 is attached to the outer wall of the pipeline 1, a fixing component is provided at one end of the movable ring 7, and the fixing component is used for fixing the fixing ring 6 and the movable ring 7. One end of the movable ring 7 is attached to one end of the fixing ring 6. Support plates 11 are fixedly connected to the outer walls of the fixing ring 6 and the movable ring 7, and the outer walls of the support plates 11 are attached to the outer wall of the pipeline 1. The fixing component includes a screw 8, one end of the screw 8 is rotatably connected to one end of the movable ring 7, the outer wall of the screw 8 is slidably connected inside the fixing ring 6, a nut 9 is threadedly connected to the outer wall of the screw 8, and the lower surface of the nut 9 is attached to one end of the movable ring 7;
[0025] Specifically, first, the detection rod 13 at the bottom of the sensor housing 12 is inserted into the pipeline 1 through the mounting seat 2, so that the connecting flange 3 is attached to the mounting seat 2. Then, the fixing bolt 4 is driven to rotate inside the connecting flange 3, so that the bottom of the fixing bolt 4 moves to the inside of the preset mounting hole 5 inside the mounting seat 2. Due to the threaded relationship between the fixing bolt 4 and the mounting seat 2, the mounting seat 2 and the connecting flange 3 are initially fixed. The fixing of the connecting flange 3 drives the fixing ring 6 to be attached to the outer wall of the pipeline 1. Then, the movable ring 7 is pulled to rotate around the hinge 10, so that one end of the movable ring 7 is attached to one end of the fixing ring 6. Then, the screw 8 is pulled to rotate at one end of the movable ring 7, so that the outer wall of the screw 8 moves to the inside of the fixing ring 6. Then, the nut 9 is driven to rotate on the outer wall of the screw 8, so that the nut 9 is attached to the movable ring 7, thereby realizing the fixing of the fixing ring 6 and the movable ring 7. Finally, the support plate 11 attached to the outer walls of the fixing ring 6 and the movable ring 7 realizes the stable fixing of the sensor housing 12, preventing it from being offset by external forces during use, resulting in inaccurate detection.
[0026] Referring toFigure 1 , Figure 3 and Figure 4 , the inside of the connecting flange 3 is fixedly connected with a sensor housing 12, the inside of the sensor housing 12 is fixedly connected with an insulation detection rod 13, both the sensor housing 12 and the insulation detection rod 13 are slidably connected inside the pipeline 1, the inside of the insulation detection rod 13 is fixedly connected with a plurality of electromagnetic coils 14, below the electromagnetic coils 14 are provided with two symmetrically arranged first electrodes 15, the outer walls of the two symmetrically arranged first electrodes 15 are fixedly connected inside the insulation detection rod 13, an outer wall of the electromagnetic coils 14 is provided with a second electrode 16, the second electrode 16 is fixedly connected inside the insulation detection rod 13, the inside of the insulation detection rod 13 is fixedly connected with a magnetic conduction block 17, a sealing ring 18 is slidably connected inside the pipeline 1, an outer wall of the sealing ring 18 is slidably connected inside the connecting flange 3, the inside of the sealing ring 18 is fixedly connected with a telescopic rod 19, an outer wall of the telescopic rod 19 is sleeved with a spring 20, one end of the spring 20 is fixedly connected inside the sealing ring 18, and the other end of the spring 20 is fixedly connected inside the pipeline 1;
[0027] Specifically, when in use, the sensor housing 12 is connected to an external power supply to energize the detection rod 13 and the electromagnetic coils 14, thereby generating an alternating magnetic field. When water flows through the detection rod 13, this magnetic field penetrates the fluid and forms around the first electrode 15 and the second electrode 16. When the fluid flows, the first electrode 15 and the second electrode 16 move relative to the magnetic field, and relative movement induces an electromotive force on the first electrode 15 and the second electrode 16. The magnitude of the electromotive force is proportional to the flow rate of the fluid. Then, after being processed by the signal processor inside the sensor housing 12, finally, when installing the sensor housing 12, the bottom of the sensor housing 12 is made to fit with the sealing ring 18, so that the spring 20 contracts, and then the thrust generated when the spring 20 contracts is used to push the sealing ring 18 to fit with the sensor housing 12, achieving efficient sealing.
[0028] Working principle: When a high-precision multi-electrode inserted electromagnetic flow velocity sensor is needed, first insert the detection rod 13 of the sensor housing 12 into the pipeline 1 through the mounting seat 2, ensure that the connecting flange 3 is in close contact with the mounting seat 2, then, rotate the fixing bolt 4 so that its bottom enters the mounting hole 5 of the mounting seat 2, and use threaded connection to achieve preliminary fixation of the mounting seat 2 and the connecting flange 3. Subsequently, the fixing ring 6 is in contact with the outer wall of the pipeline 1. By pulling the movable ring 7 to rotate around the hinge 10, it is docked with the fixing ring 6. Then, continue to rotate the screw rod 8 so that it is embedded in the fixing ring 6, and then rotate the nut 9 to fix the movable ring 7, thereby stabilizing the fixing ring 6 and the movable ring 7. Finally, the support plate 11 is closely attached to the outer walls of the fixing ring 6 and the movable ring 7 to stably fix the sensor housing 12, preventing deviation caused by external forces during use and ensuring the detection accuracy;
[0029] In addition, during use, the sensor housing 12 is connected to an external power supply to energize the detection rod 13 and the electromagnetic coil 14, generating an alternating magnetic field. When water flows through the detection rod 13, the magnetic field penetrates the fluid and forms around electrode one 15 and electrode two 16. The flow of the fluid causes electrode one 15 and electrode two 16 to move relative to the magnetic field, generating an electromotive force proportional to the flow rate. The signal processor inside the sensor housing 12 processes the electromotive force and outputs the flow rate data. When installing the sensor housing 12, make its bottom closely fit with the sealing ring 18. The thrust generated by the contraction of the spring 20 pushes the sealing ring 18 into close contact with the sensor housing 12 to achieve efficient sealing.
[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A high-precision multi-electrode insertion electromagnetic flow velocity sensor, comprising a pipeline (1), characterized in that: The top of the pipeline (1) is fixedly connected to a mounting seat (2), the upper surface of the mounting seat (2) is fitted with a connecting flange (3), the interior of the mounting seat (2) is provided with a mounting hole (5), the interior of the connecting flange (3) is provided with a fixing bolt (4), the outer wall of the fixing bolt (4) is threadedly connected to the interior of the mounting seat (2), the outer wall of the connecting flange (3) is fixedly connected to a fixing ring (6), the outer wall of the fixing ring (6) is fitted with the outer wall of the pipeline (1), and one end of the fixing ring (6) is fixedly connected to A hinge (10), the outer wall of the hinge (10) is fixedly connected to a movable ring (7), the outer wall of the movable ring (7) is in contact with the outer wall of the pipe (1), one end of the movable ring (7) is provided with a fixing component, the fixing component is used to fix the fixed ring (6) and the movable ring (7), one end of the movable ring (7) is in contact with one end of the fixed ring (6), the outer walls of the fixed ring (6) and the movable ring (7) are both fixedly connected to a support plate (11), the outer wall of the support plate (11) is in contact with the outer wall of the pipe (1).
2. A high-precision multi-electrode insertion electromagnetic flow velocity sensor according to claim 1, characterized in that: The fixing assembly comprises a screw rod (8), one end of which is rotatably connected to one end of the movable ring (7), the outer wall of the screw rod (8) is slidably connected to the inside of the fixing ring (6), the outer wall of the screw rod (8) is threadedly connected to a nut (9), and the lower surface of the nut (9) is attached to one end of the movable ring (7).
3. A high-precision multi-electrode insertion electromagnetic flow velocity sensor according to claim 1, characterized in that: The interior of the connecting flange (3) is fixedly connected to a sensor housing (12), and the interior of the sensor housing (12) is fixedly connected to an insulation detection rod (13).
4. A high-precision multi-electrode insertion electromagnetic flow velocity sensor according to claim 3, characterized in that: The sensor housing (12) and the insulation detection rod (13) are both slidably connected to the interior of the pipeline (1), and a plurality of electromagnetic coils (14) are fixedly connected to the interior of the insulation detection rod (13).
5. A high-precision multi-electrode insertion electromagnetic flow velocity sensor according to claim 4, characterized in that: Two symmetrical electrodes (15) are arranged below the electromagnetic coil (14), and the outer walls of the two symmetrical electrodes (15) are fixedly connected to the inside of the insulation detection rod (13).
6. A high-precision multi-electrode insertion electromagnetic flow velocity sensor according to claim 5, characterized in that: The outer wall of the electromagnetic coil (14) is provided with a second electrode (16), the second electrode (16) is fixedly connected to the inside of the insulation detection rod (13), and the inside of the insulation detection rod (13) is fixedly connected with a magnetic conductive block (17).
7. A high-precision multi-electrode insertion electromagnetic flow velocity sensor according to claim 1, characterized in that: A sealing ring (18) is slidably connected inside the pipeline (1), an outer wall of the sealing ring (18) is slidably connected inside the connecting flange (3), and a telescopic rod (19) is fixedly connected inside the sealing ring (18).
8. A high-precision multi-electrode insertion electromagnetic flow velocity sensor according to claim 7, characterized in that: The outer wall of the telescopic rod (19) is sleeved with a spring (20), one end of the spring (20) is fixedly connected to the inside of the sealing ring (18), and the other end of the spring (20) is fixedly connected to the inside of the pipeline (1).