Electromagnetic flowmeter convenient to maintain

Abstract

The electromagnetic flowmeter convenient to maintain comprises a circulation valve body and a detection valve body, the detection valve body is installed on the upper end face of the circulation valve body, installation discs are arranged on the end faces of the left side and the right side of the circulation valve body, through holes are formed in the middles of the installation discs, and the through holes are matched with pipelines in the circulation valve body. A pipeline in the detection valve body is connected with a pipeline of the circulation valve body, a front valve cover is installed on the front end face of the detection valve body, a display screen is arranged in the middle of the front valve cover, a button is arranged below the display screen, and a side valve cover is arranged on the end face of one side of the detection valve body. And at least three fastening screws are arranged on the end surface of the other side of the detection valve body corresponding to the side valve cover from top to bottom. A traditional electromagnetic flowmeter generally adopts an integrated design, and is difficult to maintain and repair although the structure is compact. For example, when the interior of the flow meter breaks down, the whole device needs to be disassembled, and time and labor are consumed.

Description

Technical Field

[0001] This utility model belongs to the field of flow meters, and specifically relates to an electromagnetic flow meter that is easy to maintain. Background Technology

[0002] Currently, electromagnetic flow meters, as a flow measurement instrument based on Faraday's law of electromagnetic induction, are widely used in industrial process control, municipal water management, chemical production, and other fields. Their core principle is to calculate flow velocity and flow rate by measuring the induced electromotive force generated when a conductive fluid moves in a magnetic field. Theoretically, they possess advantages such as having no moving mechanical parts, low pressure loss, and a wide measurement range.

[0003] However, as industrial applications demand higher measurement accuracy, long-term stability, and ease of maintenance, traditional electromagnetic flowmeters have gradually revealed systemic defects in terms of structural design, material processing, signal processing, and maintenance mechanisms.

[0004] Existing sensor structures generally adopt a combination design of fixed coil and split electrode, which makes the internal magnetic circuit distribution susceptible to assembly errors. After long-term operation, the measurement deviation caused by the attenuation of magnetic field strength is difficult to completely eliminate through on-site calibration. Furthermore, the traditional flange connection method requires the interruption of the process flow for sensor disassembly and maintenance, which greatly affects the continuity of production.

[0005] Electrode surfaces are susceptible to electrochemical corrosion, scaling, and polarization effects. Conventional electrode cleaning relies on acid and alkali chemical reagents or mechanical scraping, which not only poses a risk of contamination but may also lead to failure of the sealing structure due to repeated disassembly and reassembly, resulting in media leakage accidents.

[0006] Although existing lining materials have corrosion resistance, under complex working conditions such as high temperature, high pressure or media containing solid particles, the difference in thermal expansion coefficients between the lining and the measuring tube can easily cause interface peeling, resulting in deformation of the measuring cavity or even media penetration. Existing detection methods are unable to detect such hidden dangers in the early stages of failure.

[0007] Signal processing systems generally use analog amplifier circuits and fixed threshold filtering algorithms, which have limited ability to suppress on-site electromagnetic interference, fluid turbulence noise and electrode polarization voltage fluctuations. In particular, the signal-to-noise ratio is significantly reduced when measuring low flow rates, and zero-point drift occurs frequently, forcing maintenance personnel to perform zero-point calibration operations frequently.

[0008] Traditional equipment lacks a modular design concept, with sensors and converters highly integrated. Fault location relies on specialized instruments for step-by-step troubleshooting, and replacement of critical components such as excitation coils and electrode leads often requires complete factory return for repair, leading to extended maintenance cycles and increased costs. Insufficient intelligence means that equipment condition monitoring heavily relies on manual inspections, making it impossible to detect potential faults such as lining wear, electrode contamination, and abnormal magnetic fields in real time. This makes it difficult to implement preventative maintenance strategies and results in a persistently high risk of sudden downtime.

[0009] Current protection ratings primarily focus on waterproofing and dustproofing, lacking sufficient adaptability to extreme temperature fluctuations, strong vibration environments, and chemical vapor corrosion, thus accelerating the aging of seals and the failure of electronic components. These shortcomings are coupled, not only increasing the total lifecycle maintenance cost but also fundamentally hindering the deep integration of electromagnetic flowmeters in smart manufacturing and IoT applications. A technological breakthrough is urgently needed through structural innovation, material optimization, and the integration of intelligent algorithms. Utility Model Content

[0010] This invention proposes an easy-to-maintain electromagnetic flow meter, which solves the problems of inconvenient maintenance and complex structure of existing flow meters, making it easy to disassemble and repair, while improving the convenience of installation and use.

[0011] The technical solution of this utility model is implemented as follows: An easy-to-maintain electromagnetic flow meter includes a flow valve body and a detection valve body. A detection valve body is installed on the upper end face of the flow valve body. Mounting plates are provided on the left and right end faces of the flow valve body. A through hole is provided in the middle of the mounting plate. The through hole matches the pipe in the flow valve body. The pipe inside the detection valve body is connected to the pipe in the flow valve body. A front valve cover is installed on the front end face of the detection valve body. A display screen is provided in the middle of the front valve cover. A button is provided below the display screen. A side valve cover is provided on one end face of the detection valve body. At least three fastening screws are provided from top to bottom on the other end face of the detection valve body corresponding to the side valve cover.

[0012] Traditional electromagnetic flow meters typically employ an integrated design, which, while compact, presents significant challenges in maintenance and repair. For example, internal malfunctions often necessitate disassembling the entire device, a time-consuming and labor-intensive process that can damage other components. Furthermore, traditional flow meters are typically fixed to pipelines via welding or complex connections, increasing installation difficulty and cost. In contrast, this design significantly simplifies maintenance and installation by dividing the flow meter into two main modules: a flow valve body and a detection valve body. The mounting plates on both sides of the flow valve body allow for quick and easy mounting to the pipeline without complex welding or connection processes. The separate design of the detection valve body from the front and side valve covers allows for maintenance or replacement of internal components simply by removing the corresponding valve cover, eliminating the need to disassemble the entire flow meter. Additionally, the fastening screws on the detection valve body further enhance structural stability and sealing, preventing leakage issues caused by vibration or pressure changes common in traditional flow meters. The integrated display and buttons allow users to operate and monitor the device directly without additional external equipment, further enhancing ease of use. In summary, this design, through its modular and detachable structural design, significantly improves the maintainability, ease of installation, and efficiency of electromagnetic flow meters, solving many pain points in the maintenance, installation, and use of traditional flow meters.

[0013] In a preferred embodiment, a fixing plate is provided on the lower end face of the detection valve body. The fixing plate has an annular structure, a through groove is provided on the annular end face of the fixing plate, and a through hole is provided in the middle of the fixing plate. The pipe that flows through the valve body enters the interior of the detection valve body through the through hole.

[0014] In a preferred embodiment, a pressure relief valve is symmetrically provided on the front and rear faces of the flow valve body, and the bottom of the side face of the pressure relief valve is fixed to the end face of the flow valve body by a fastening rib.

[0015] In a preferred embodiment, the mounting disc has at least four threaded holes in a ring array around the center point, through which the position of the pipe entering the flow valve body is fixed.

[0016] In a preferred embodiment, the front valve cover and the side valve cover are symmetrically provided with grooves on their outer edges. After fixing the symmetrical grooves with a crossbar, the front valve cover and the side valve cover are rotated to remove them from the detection valve body.

[0017] The beneficial effects of adopting the above technical solution are as follows: the modular structural design makes maintenance and repair more convenient. By dividing the flow meter into two main parts—the flow valve body and the detection valve body—users can quickly replace or repair faulty components without disassembling the entire device, significantly reducing maintenance time and costs.

[0018] The mounting plate design simplifies and streamlines the flow meter installation process. The through-holes on the mounting plate match the pipe, allowing users to easily attach the flow meter to the pipe using the mounting plate. No complex welding or connection processes are required, reducing installation difficulty and minimizing potential errors and leakage risks during installation.

[0019] The design of the front and side valve covers on the valve body further enhances the maintainability of the equipment. The integrated display and button design on the front valve cover allows users to operate and monitor directly on the equipment without relying on external devices, improving ease of use and efficiency. The design of the side valve cover and fastening screws enhances the stability and sealing of the equipment, preventing leakage problems caused by vibration or pressure changes and ensuring the long-term stable operation of the flow meter. The integrated display not only provides real-time flow data but also enables direct control of the equipment via buttons, further enhancing the user experience.

[0020] This electromagnetic flow meter, through its modular and detachable structural design, significantly improves the maintainability, ease of installation, and efficiency of use, solving many pain points of traditional flow meters in maintenance, installation, and use, and has broad application prospects and economic benefits. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a bottom side view of the present invention.

[0024] In the diagram, 1-flow valve body; 11-mounting plate; 12-threaded hole; 2-detection valve body; 21-front valve cover; 22-display screen; 23-button; 3-side valve cover; 4-fastening screw; 5-fixing plate; 51-through groove; 6-pressure relief valve; 61-fastening rib. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] like Figures 1-2 As shown, an easy-to-maintain electromagnetic flow meter includes a flow valve body 1 and a detection valve body 2. The detection valve body 2 is installed on the upper end face of the flow valve body 1. Mounting plates 11 are provided on the left and right end faces of the flow valve body 1. A through hole is provided in the middle of the mounting plate 11, and the through hole matches the pipe in the flow valve body 1. The pipe inside the detection valve body 2 is connected to the pipe in the flow valve body 1. A front valve cover 21 is installed on the front end face of the detection valve body 2. A display screen 22 is provided in the middle of the front valve cover 21. A button 23 is provided below the display screen 22. A side valve cover 3 is provided on one end face of the detection valve body 2. At least three fastening screws 4 are provided from top to bottom on the other end face of the detection valve body 2 corresponding to the side valve cover 3.

[0028] In a specific implementation scenario of an easy-to-maintain electromagnetic flow meter, its working principle and workflow are as follows: When fluid passes through the pipe of the flow valve body 1, the fluid flow generates an electromagnetic induction signal within the pipe. The sensor inside the detection valve body 2 captures these signals and converts them into electrical signals. These signals are then processed by the internal circuitry and finally displayed in real-time on the display screen 22. The flow valve body 1 serves as the main channel for the fluid, and its mounting plates 11 on both sides connect to external pipes through through-holes, ensuring smooth flow of fluid into and out of the flow meter. The design of the mounting plates 11 not only simplifies the installation process but also ensures the sealing and stability of the connection through the matching of the through-holes with the pipes, avoiding leakage problems. The detection valve body 2, as the core detection unit, has its internal pipes directly connected to the pipes of the flow valve body 1, ensuring that the fluid can pass through the detection area without obstruction, thereby guaranteeing the accuracy of flow detection. The front valve cover 21, serving as the front protective component of the detection valve body 2, not only provides a seal but also integrates a display screen 22 and buttons 23. The display screen 22 shows real-time flow data, while the buttons 23 are used by the user to operate and set the device, such as switching display modes or calibrating the device. This integrated design enhances user convenience. The side valve cover 3 is located on one side of the detection valve body 2. Its design allows for quick disassembly during maintenance, enabling users to inspect or replace internal sensors or circuits without disassembling the entire device. At least three fastening screws 4 are provided on the opposite end face of the side valve cover 3 to secure the internal structure of the detection valve body 2, ensuring stable operation under vibration or pressure changes, while also enhancing the device's sealing performance and preventing fluid leakage.

[0029] Throughout the entire workflow, the flow valve body 1 is responsible for fluid transfer, the detection valve body 2 is responsible for flow detection and data processing, the front valve cover 21 and the side valve cover 3 provide the operation interface and maintenance access respectively, and the fastening screws 4 ensure the stability and sealing of the structure. This modular and detachable design enables the flow meter to complete flow detection tasks efficiently and accurately during operation, while greatly reducing complexity and cost during maintenance, thus improving the practicality and economy of the equipment.

[0030] A fixing plate 5 is provided on the lower end face of the detection valve body 2. The fixing plate 5 is an annular structure. A through groove 51 is provided on the annular end face of the fixing plate 5. A through hole is provided in the middle of the fixing plate 5. The pipe that flows through the valve body 1 enters the interior of the detection valve body 2 through the through hole.

[0031] In this application, the fixed plate 5 on the lower end face of the detection valve body 2 has an annular structure with a through groove 51 on its annular end face and a through hole in the middle. The pipe flowing through the valve body 1 enters the interior of the detection valve body 2 through the through hole. Compared with the prior art, this design significantly improves the installation stability and sealing performance of the flow meter. In the prior art, the connection between the detection valve body and the flow valve body is usually a simple flange or threaded connection, which is prone to loosening or leakage due to vibration or pressure changes. The annular structure and through groove 51 design of the fixed plate 5 not only enhance the mechanical strength of the connection, but also ensures precise alignment of the pipe connection through the through hole, avoiding poor fluid flow or detection errors caused by installation deviations. In actual working scenarios, the fixed plate 5, through the through groove 51 on its annular end face, cooperates with external fasteners to further enhance the stability of the detection valve body 2, enabling it to maintain stable operation even under high pressure or high flow rate environments. In addition, the through hole design in the middle of the fixed plate 5 allows the pipe flowing through the valve body 1 to seamlessly enter the interior of the detection valve body 2, ensuring smooth fluid transmission and accurate detection.

[0032] A pressure relief valve 6 is symmetrically arranged on the front and rear ends of the flow valve body 1. The bottom of the side end face of the pressure relief valve 6 is fixed to the end face of the flow valve body 1 by a fastening rib 61. This design significantly improves the safety and reliability of the flow meter compared to existing technologies. In existing technologies, flow meters typically lack pressure relief devices, which can easily lead to equipment damage or leakage when the pressure inside the pipeline is too high. The symmetrical design of the pressure relief valve 6 allows it to automatically open when the pipeline pressure is abnormal, releasing excess pressure and preventing equipment damage. The design of the fastening rib 61 further enhances the fixing strength of the pressure relief valve 6, ensuring stable operation even under high pressure. In actual working scenarios, the pressure relief valve 6 can respond quickly when the fluid pressure suddenly increases, protecting the internal components of the flow meter from damage. Simultaneously, the fastening rib 61 prevents the pressure relief valve 6 from loosening due to vibration or pressure changes, ensuring long-term stable operation of the equipment.

[0033] The mounting plate 11 has at least four threaded holes 12 arranged in a ring around its center point, which are used to fix the position of the pipe entering the flow valve body 1. This design significantly improves the ease of installation and stability of the flow meter compared to existing technologies. In existing technologies, mounting plates typically use fewer fixing points or simple welding methods, which can easily lead to equipment vibration or leakage due to insecure installation. The threaded hole 12 design of the ring array allows the mounting plate 11 to be tightly connected to the external pipe through multiple fixing points, enhancing installation stability and sealing. In practical working scenarios, the threaded hole 12 design allows users to quickly fix the flow meter to the pipe with bolts, avoiding complex welding processes. At the same time, the distribution of multiple fixing points ensures that the equipment will not loosen due to vibration or pressure changes during operation, improving the reliability and service life of the equipment.

[0034] The front valve cover 21 and the side valve cover 3 are symmetrically provided with grooves on their outer edges. After fixing the symmetrical grooves with a crossbar, the front valve cover 21 and the side valve cover 3 can be removed from the detection valve body 2 by rotation. This design significantly improves the ease of maintenance of the flow meter compared to existing technologies. In existing technologies, valve covers are usually fixed with bolts or clips, making disassembly cumbersome and prone to damaging components. The symmetrical groove and crossbar design allows users to quickly disassemble the valve cover simply by rotating it, without the need for tools, greatly simplifying the maintenance process. In actual working scenarios, when maintenance or component replacement is required inside the detection valve body 2, the user only needs to fix the groove with the crossbar and rotate it to remove the front valve cover 21 or the side valve cover 3, avoiding the time and cost waste of traditional disassembly methods, while reducing the risk of component damage due to improper disassembly, thus improving the maintainability and economy of the equipment.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electromagnetic flowmeter that is easy to maintain, characterized by, Including flow valve body (1) and detection valve body (2), the detection valve body (2) is installed on the upper end face of the flow valve body (1), the installation disc (11) is arranged on the left and right side end faces of the flow valve body (1), the through hole is arranged in the middle of the installation disc (11), the through hole is matched with the pipeline in the flow valve body (1), the pipeline in the detection valve body (2) is connected with the pipeline of the flow valve body (1), the front valve cover (21) is installed on the front end face of the detection valve body (2), the display screen (22) is arranged in the middle of the front valve cover (21), the button (23) is arranged below the display screen (22), the side valve cover (3) is arranged on one side end face of the detection valve body (2), and at least three fastening screws (4) are arranged from top to bottom on the other side end face of the detection valve body (2) corresponding to the side valve cover (3).

2. A maintenance-friendly electromagnetic flowmeter as defined in claim 1, characterized in that: The lower end face of the detection valve body (2) is provided with a fixing disc (5), the fixing disc (5) is an annular structure, the through groove (51) is arranged on the annular end face of the fixing disc (5), the through hole is arranged in the middle of the fixing disc (5), and the pipeline of the flow valve body (1) enters the inside of the detection valve body (2) through the through hole.

3. A maintenance-friendly electromagnetic flowmeter as defined in claim 1, characterized in that: The front end face and the rear end face of the flow valve body (1) are symmetrically provided with pressure relief valves (6), and the side end face bottom of the pressure relief valve (6) is fixed with the end face of the flow valve body (1) through the fastening rib (61).

4. The electromagnetic flowmeter of claim 1, wherein: The installation disc (11) is annularly arranged with at least four threaded holes (12) around the center point, and the pipeline position entering the flow valve body (1) is fixed through the threaded hole (12).

5. A maintenance-friendly electromagnetic flowmeter as defined in claim 1, wherein: The outer edges of the front valve cover (21) and the side valve cover (3) are symmetrically provided with grooves, and the front valve cover (21) and the side valve cover (3) are taken out from the detection valve body (2) by fixing the symmetric grooves through the cross rod and rotating.

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