An electromagnetic flowmeter anti-fouling device

Abstract

The application discloses an electromagnetic flowmeter anti-fouling device for improving the safety of instrument maintenance. The application comprises a door-shaped pipe, a horizontal pipe, a flange and an electromagnetic flowmeter sensor, the door-shaped pipe is connected with the horizontal pipe, the door-shaped pipe is perpendicular to the ground, the door-shaped pipe comprises a first vertical area, a second vertical area and a horizontal area, the first flange is located on the first vertical area, and the electromagnetic flowmeter sensor is located on the first flange. The electromagnetic flowmeter is installed in a vertical mode, the fluid gravity natural backflow characteristics are utilized, the fluid medium retention time in the pipeline is reduced, the medium is prevented from being left in the pipeline to cause the pipeline inner wall to be scaled, the workload of maintenance is reduced, the on-line use rate of the instrument is improved, and the normal working time of the electromagnetic flowmeter is prolonged.

Description

Technical Field

[0001] This application relates to the field of electromagnetic flowmeters, and more particularly to an anti-scaling device for electromagnetic flowmeters. Background Technology

[0002] Electromagnetic flow meters are widely used in various fields due to their unique measurement principle and structural features. Especially in applications requiring continuous and accurate flow measurement, such as water supply, wastewater treatment, food ingredient proportioning, and bottling, electromagnetic flow meters play a vital role in modern industrial production as an advanced flow measurement instrument.

[0003] In existing electromagnetic flowmeters, scale will form on the inner wall of the measuring pipe after a period of use. After scaling, the inner diameter of the pipe will decrease, resulting in an increase in flow velocity and an overestimation of the actual flow rate. This leads to inaccurate instrument measurements and requires frequent maintenance, increasing the workload and reducing the online and normal operating rates of the instrument. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides an anti-scaling device for electromagnetic flowmeters. The technical solution described in this application is as follows:

[0005] This application provides an anti-scaling device for an electromagnetic flowmeter, comprising:

[0006] Gateway tubes, horizontal tubes, flanges, and electromagnetic flow meter sensors;

[0007] The portal-shaped tube is connected to the horizontal tube, and the portal-shaped tube is perpendicular to the ground;

[0008] The portal-shaped tube includes a first vertical region, a second vertical region, and a horizontal region;

[0009] The first flange is located on the first vertical region;

[0010] The electromagnetic flowmeter sensor is located on the first flange.

[0011] Optionally, a branch pipe for sewage discharge is provided at the lower part of the first vertical area, and the sewage discharge valve is installed on the branch pipe.

[0012] Optionally, the cleaning bypass valve is fixed to the horizontal pipe via a second flange and is used to open when cleaning the inner wall of the pipe to prevent non-metering media from entering the flow meter.

[0013] Optionally, a gasket is provided in the flange to fill the gap between the flanges and ensure the sealing of the flange connection.

[0014] Optionally, the portal-shaped pipe is perpendicular to the ground, and when the pump stops working, the medium in the pipe automatically flows back to the horizontal pipe.

[0015] Optionally, the electromagnetic flowmeter sensor meets the requirement of a straight pipe section of 10 times the pipe diameter at the front end and 5 times the pipe diameter at the rear end of the flowmeter installation.

[0016] Optionally, the electromagnetic flowmeter sensor is vertically mounted on the flange and connected using mounting flange bolts.

[0017] Optionally, the portal tube is in a full fluid state when the electromagnetic flowmeter sensor is measuring.

[0018] Optionally, the drain valve includes a valve stem and a valve body, and the valve stem is lifted by rotating the gear 90 degrees to realize the opening and closing of the drain valve.

[0019] As can be seen from the above technical solutions, this application has the following advantages:

[0020] Electromagnetic flow meters are installed vertically, utilizing the natural backflow characteristic of fluids due to gravity to reduce the residence time of fluid media in the pipeline, prevent media from remaining in the pipeline and causing scaling on the inner wall of the pipeline, reduce maintenance workload, improve the online utilization rate of the instrument and extend the normal working time of the electromagnetic flow meter. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the anti-scaling device for the electromagnetic flowmeter provided in this application.

[0022] Figure 2 This is a schematic diagram of the drain valve structure of the anti-scaling device for the electromagnetic flowmeter provided in this application. Detailed Implementation

[0023] To address the aforementioned technical problems, this application provides an anti-scaling device for electromagnetic flowmeters, which improves the safety of instrument maintenance.

[0024] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0025] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0027] Furthermore, the structures, proportions, sizes, etc., drawn in the accompanying drawings of this application are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0028] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Please see Figure 1 and Figure 2 This application provides an anti-scaling device for an electromagnetic flowmeter, the device comprising:

[0030] The system includes a portal tube 01, a horizontal tube 02, a flange 03, and an electromagnetic flowmeter sensor 04. The portal tube 01 is connected to the horizontal tube 02 and is perpendicular to the ground. The portal tube 01 includes a first vertical region, a second vertical region, and a horizontal region. A first flange 031 is located on the first vertical region, and the electromagnetic flowmeter sensor 04 is located on the first flange 031.

[0031] When it is necessary to measure the flow velocity of the fluid medium in the pipe, the pressure of the pump is used to force the fluid to flow into the portal tube 01. At this time, the electromagnetic flowmeter sensor 04, which is vertically installed in the first vertical portal tube 01, measures the flow velocity of the fluid. When it is not necessary to measure the flow velocity, the pump is turned off, and the fluid in the portal tube 01 will flow back into the horizontal tube 02 due to gravity. At this time, there is no fluid in the portal tube 01, so there will be no scaling due to fluid blockage.

[0032] Electromagnetic flow meters are installed vertically, utilizing the natural backflow characteristic of fluids due to gravity to reduce the residence time of fluid media in the pipeline, prevent media from remaining in the pipeline and causing scaling on the inner wall of the pipeline, reduce maintenance workload, improve the online utilization rate of the instrument and extend the normal working time of the electromagnetic flow meter.

[0033] In an optional embodiment, a branch pipe 07 is provided at the lower part of the first vertical region for sewage discharge, and a sewage discharge valve 05 is installed on the branch pipe 07.

[0034] In this embodiment, branch pipe 07 primarily diverts sewage from the main sewage pipe to different treatment units or discharge points according to actual needs, thereby reducing the load on a single pipe. When inspecting and maintaining the main pipe, closing the valve on branch pipe 07 will not affect the normal operation of the main pipe. The drain valve 05 is installed on branch pipe 07 in an easily accessible and maintainable location, ensuring that the drain valve 05 does not obstruct the normal operation of branch pipe 07. The material of the drain valve 05 is selected based on the discharged medium and is not limited to any particular material.

[0035] In an optional embodiment, the cleaning bypass valve 06 is fixed to the horizontal pipe 02 via a second flange 032 and is used to open when cleaning the inner wall of the pipe to prevent non-metering media from entering the flow meter.

[0036] In this embodiment, the cleaning bypass valve 06 is fixed via the second flange 032 and installed on the horizontal pipe 02. Its main function is to allow fluid to bypass the flow meter when the inner wall of the pipeline needs cleaning, thereby preventing non-metering media (such as cleaning fluid, impurities, etc.) from entering the flow meter during the cleaning process. The cleaning bypass valve 06 should be located in an easily accessible position, taking into account the fluid flow direction and pipeline layout to ensure that the fluid can smoothly bypass the flow meter when the valve is open. When not measuring media, the bypass cleaning valve can be opened to facilitate effective and accurate measurement of the fluid and prevent mismeasurement.

[0037] The material of the valve is not limited; the appropriate valve should be selected based on the medium, flow rate, and operational requirements of the fluid in the pipeline. The valve must have good sealing performance to prevent leakage when closed, which could affect the normal operation of the flow meter.

[0038] In an optional embodiment, a gasket is provided in flange 03 to fill the gap between flanges 03 and ensure the sealing of the flange 03 connection.

[0039] In this embodiment, the gasket is located between two interconnected flanges 03, filling the tiny gap between them to ensure a tight seal. This seal is crucial for preventing fluid leakage, especially in applications involving high pressure, high temperature, or corrosive media. Specifically, the gasket is elastic and malleable, allowing it to fit snugly against the sealing surfaces of the two flanges 03, effectively preventing media leakage. Before installing the gasket, ensure the sealing surfaces of the flanges 03 are clean and undamaged, and select the appropriate gasket type and size based on the fluid medium and the required size of the flanges 03.

[0040] In an optional embodiment, the portal pipe 01 is perpendicular to the ground, and when the pump stops working, the medium in the pipe automatically flows back to the horizontal pipe 02.

[0041] In this embodiment, to ensure that the medium does not accumulate in the portal pipe 01 and cause blockage or damage when the pump stops working, the piping system is designed with a return path. When the pump stops working, the medium can automatically return to the horizontal pipe 02 along this path. Utilizing the natural return characteristic of fluid gravity, the residence time of the fluid medium in the portal pipe 01 is reduced, preventing scale buildup on the inner wall of the pipe.

[0042] In an optional embodiment, the electromagnetic flowmeter sensor 04 meets the requirement of a straight pipe section of 10 times the pipe diameter at the front end and 5 times the pipe diameter at the rear end of the flowmeter installation.

[0043] The main purpose of the straight pipe section requirement in this embodiment is to ensure that the fluid flow is stable when passing through the electromagnetic flowmeter sensor 04, unaffected by turbulence or vortices generated by bends, valves, or other components in the upstream or downstream pipes. This improves the measurement accuracy and stability of the electromagnetic flowmeter. When installing the electromagnetic flowmeter sensor 04, it is essential to ensure that the pipe is completely filled with the fluid being measured; a partially filled pipe state is not permitted. During installation, the pipe layout should be rationally planned to minimize the impact of bends, valves, and other components on the fluid flow state.

[0044] In an optional embodiment, the electromagnetic flowmeter sensor 04 is vertically mounted on the flange 03 and connected using mounting flange bolts.

[0045] In this embodiment, flange 03 includes a mounting base, flange plate, bolts, and gasket. First, the mounting base is fixed to the pipeline, ensuring a tight and secure connection between the mounting base and the pipeline. The mounting base should be selected according to the pipeline material and size. Next, the flange plate is placed on the mounting base, paying attention to its orientation and position to ensure it is perpendicular to the pipeline axis. Then, flange 03 of the electromagnetic flowmeter sensor 04 is aligned with the flange plate on the mounting base and tightened with bolts. When tightening the bolts, a symmetrical, cross-sectional sequence should be followed to ensure the sealing and stability of the flange 03 connection. Finally, a gasket is installed at the flange 03 connection to prevent fluid leakage. The gasket should be selected according to the medium characteristics and operating pressure.

[0046] During installation, pipeline conditions must meet installation requirements; the selection of installation materials is not specifically limited, but should be based on the fluid medium; the determination of the installation location and the execution of installation steps must comply with specifications. Simultaneously, it is necessary to avoid vibration and interference to ensure the measurement accuracy and stability of the electromagnetic flowmeter.

[0047] In an optional embodiment, the electromagnetic flowmeter sensor 04 measures when the portal tube 01 is in a full fluid state.

[0048] In this embodiment, under full-pipe conditions, the fluid completely fills the pipe without voids or air bubbles, allowing the electromagnetic flowmeter to more accurately measure the fluid velocity and flow rate. When the pipe is not full, fluid flow may create voids, vortices, or irregular flow patterns, all of which interfere with the distribution of the electromagnetic field, leading to measurement errors. Full-pipe conditions effectively avoid these problems, ensuring the accuracy of the measurement results. By adjusting the fluid velocity and flow rate, it is ensured that the fluid reaches a full-pipe state when flowing through the sensor. Too low a velocity may prevent the fluid from completely filling the pipe, while too high a velocity may generate turbulence and eddies, affecting measurement accuracy. By observing the fluid flow state within the pipe, such as whether voids or vortices are formed, a preliminary judgment can be made as to whether the pipe is full. The electromagnetic flowmeter sensor 04 requires the portal tube 01 to be in a full-pipe state during measurement to ensure the accuracy and reliability of the measurement results.

[0049] In an optional embodiment, the drain valve 05 includes a valve stem 051 and a valve body 052. The drain valve 05 is opened and closed by rotating the valve stem 051 by 90 degrees through a gear.

[0050] In this embodiment, a sealing strip is installed inside the valve body 052 of the drain valve 05 to ensure that the drain valve 05 can effectively prevent sewage leakage when closed. The valve body 052 is the main part of the drain valve 05 and is usually made of corrosion-resistant material to meet the needs of different fluid media. The valve body 052 has a flow channel designed inside for the passage of fluid and the discharge of sewage. The opening and closing of the valve is controlled by the up and down movement of the valve stem 051. The valve stem 051 can withstand large forces and has good sealing performance. The drain valve 05 uses a gear transmission mechanism to realize the rotation and lifting of the valve stem 051. This mechanism rotates an external handle or a motor-driven gear, causing the gear to rotate 90 degrees, which in turn drives the valve stem 051 to make linear motion, realizing the rapid opening and closing of the valve. The drain valve 05 has a simple structure, is easy to operate, discharges sewage quickly, and has good sealing performance.

[0051] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A scaling prevention device for an electromagnetic flowmeter, characterized in that, include: Gateway tubes, horizontal tubes, flanges, and electromagnetic flow meter sensors; The portal-shaped tube is connected to the horizontal tube, and the portal-shaped tube is perpendicular to the ground; The portal-shaped tube includes a first vertical region, a second vertical region, and a horizontal region; The first flange is located on the first vertical region; The electromagnetic flowmeter sensor is located on the first flange.

2. The anti-scaling device for electromagnetic flowmeters according to claim 1, characterized in that, A branch pipe for sewage discharge is provided at the lower part of the first vertical area, and the sewage discharge valve is installed on the branch pipe.

3. The anti-scaling device for the electromagnetic flowmeter according to claim 1, characterized in that, The cleaning bypass valve is fixed to the horizontal pipe via a second flange and is used to open when cleaning the inner wall of the pipe to prevent non-metering media from entering the flow meter.

4. The anti-scaling device for electromagnetic flowmeters according to claim 1, characterized in that, A gasket is provided in the flange to fill the gap between the flanges and ensure the sealing of the flange connection.

5. The anti-scaling device for the electromagnetic flowmeter according to claim 1, characterized in that, The portal-shaped pipe is perpendicular to the ground, and when the pump stops working, the medium in the pipe automatically flows back to the horizontal pipe.

6. The anti-scaling device for the electromagnetic flowmeter according to claim 1, characterized in that, The electromagnetic flowmeter sensor meets the requirement of a straight pipe section of 10 times the pipe diameter at the front end and 5 times the pipe diameter at the rear end of the flowmeter installation.

7. The anti-scaling device for the electromagnetic flowmeter according to claim 1, characterized in that, The electromagnetic flowmeter sensor is vertically mounted on the flange and connected using mounting flange bolts.

8. The anti-scaling device for the electromagnetic flowmeter according to claim 1, characterized in that, When the electromagnetic flowmeter sensor measures, the portal tube is in a state of full fluid flow.

9. The anti-scaling device for electromagnetic flowmeters according to claim 2, characterized in that, The drain valve includes a valve stem and a valve body. The valve stem is lifted by rotating the gear 90 degrees to open and close the drain valve.

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