Clamping type electromagnetic flowmeter adaptive grounding ring

By using PVC adapter pipes and flange structures, combined with grounding electrodes and threaded connections, the problem of insufficient flow rate in strong acid and alkali media environments has been solved, achieving improved stability and corrosion resistance, and reducing costs.

CN224191233UActive Publication Date: 2026-05-01SHANGHAI GUANGHUA INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI GUANGHUA INSTR CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Under special operating conditions, the flow rate of the measured medium in the electromagnetic flowmeter is insufficient, resulting in inaccurate measurement. Existing solutions increase costs and are not suitable for strong acid and strong alkali media environments.

Method used

The adapter pipe and flange are made of PVC material, combined with grounding electrode and threaded connection structure to ensure stability and corrosion resistance, and grounding and diameter change functions are achieved through grounding wire.

Benefits of technology

It improves the stability and corrosion resistance of electromagnetic flowmeters, reduces costs, and meets grounding and diameter variation requirements, making it suitable for strong acid and alkali media environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a clamping type electromagnetic flowmeter adaptive grounding ring, and belongs to the field of grounding rings, the clamping type electromagnetic flowmeter adaptive grounding ring comprises an adaptive pipe, the outer edge of the adaptive pipe is fixedly provided with an adaptive flange, the top of the adaptive flange is provided with a grounding hole, and the bottom of the grounding hole is provided with a grounding electrode; the top of the grounding electrode is fixedly connected with one end of a grounding wire, the other end of the grounding wire is fixedly connected with a connecting gasket, the outer edge of the adaptive flange is fixedly provided with a circular pipe, and the inner wall of the circular pipe is in threaded connection with a threaded column; by arranging the adapter pipe and the adapter flange which are made of PVC materials, the corrosion resistance can be improved, it is guaranteed that the adapter is not prone to being corroded, the service life of the adapter is prolonged, cost expenditure and loss are reduced, meanwhile, the grounding electrode is assembled at one end, the grounding electrode and a flowmeter measuring electrode are made of the same material, grounding is conducted through the grounding wire, and therefore the purpose of reducing is achieved, and the service life of the flowmeter is prolonged. And meanwhile, the grounding requirement is also met.
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Description

A clamp-on electromagnetic flowmeter adapter grounding ring Technical Field

[0001] This application relates to the field of grounding ring technology, and in particular to a clamp-on electromagnetic flowmeter adapter grounding ring. Background Technology

[0002] An electromagnetic flowmeter is a velocity-type instrument based on Faraday's law of electromagnetic induction. It works by comparing the electromotive force generated by the conductive fluid cutting magnetic lines of force with the reference potential of the liquid being measured, and finally converting the induced potential signal into flow velocity, and then into volumetric flow rate. The working principle of the electromagnetic flowmeter dictates that a sufficient flow velocity must be ensured during operation; otherwise, the accuracy of the measurement will be affected. Therefore, the selection of an electromagnetic flowmeter is crucial.

[0003] However, under certain special operating conditions, the flow velocity of the medium being measured in a pipe with the same diameter as the electromagnetic flowmeter may not reach the minimum qualified standard for the flowmeter to meet the measurement requirements. In such cases, the flowmeter needs to be modified by selecting a flowmeter with a smaller diameter.

[0004] In the past, the solution to this situation was to use an adapter tube to connect the flow meter to the mating flange on the connecting pipe. This allowed the flow meter to achieve stable measurement and also served as grounding. However, in extreme measurement environments, such as when the measured medium is a strong acid or alkali, the adapter tube needs to be made of dissimilar metals, such as Hastelloy C, Ti alloys, or Pt, which are corrosion-resistant precious metals. While this meets the requirements, it significantly increases the purchase cost and is not suitable for the company's operations. Summary of the Invention

[0005] In view of the shortcomings of the prior art, this utility model provides a clamp-type electromagnetic flowmeter adapter grounding ring, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0006] To achieve the above objectives, this application adopts the following technical solution: a clamp-on electromagnetic flowmeter adapter grounding ring, including an adapter tube, an adapter flange fixedly installed on the outer edge of the adapter tube, a grounding hole opened on the top of the adapter flange, a grounding electrode installed at the bottom of the grounding hole, one end of a grounding wire fixedly connected to the top of the grounding electrode, a connecting gasket fixedly connected to the other end of the grounding wire, a round tube fixedly installed on the outer edge of the adapter flange, a threaded post threadedly connected to the inner wall of the round tube, and a wiring hole opened on the inner wall of the threaded post.

[0007] In a preferred embodiment, the inner wall of the grounding electrode is threaded with a bolt, and the bottom end of the bolt is threaded to the bottom of the grounding hole.

[0008] By adopting the above technical solution, the grounding electrode can be stably installed at the bottom of the grounding hole using bolts, ensuring that it will not easily detach after installation and improving stability.

[0009] In a preferred embodiment, the inner wall of the connecting gasket is also threaded with a second bolt, and both the second bolt and the connecting gasket are galvanized metal.

[0010] By adopting the above technical solution, the connecting gasket can be fixed to the ground using bolt two, ensuring stability.

[0011] In a preferred embodiment, the grounding wire is disposed on the inner wall of the wiring hole, and the outer diameter of the grounding wire is adapted to the inner diameter of the wiring hole.

[0012] By adopting the above technical solution, the grounding wire can be positioned using the wiring hole, ensuring that it can be stably installed inside the round tube, thereby ensuring that the grounding wire will not shift its position arbitrarily.

[0013] In a preferred embodiment, the outer edge of the threaded post is fixedly fitted with multiple protrusions.

[0014] By adopting the above technical solution, it is possible to drive the threaded column to rotate on the inner wall of the round tube, thereby achieving installation and positioning, ensuring stability, and improving the convenience of rotation.

[0015] In a preferred embodiment, both the adapter pipe and the adapter flange are made of PVC.

[0016] By adopting the above technical solutions, its corrosion resistance can be improved, ensuring that it will not be easily corroded, thus extending its service life and reducing costs.

[0017] The beneficial effects of this application are:

[0018] This clamp-on electromagnetic flowmeter with an adapter grounding ring increases its corrosion resistance by using a PVC adapter pipe and adapter flange, ensuring it is not easily corroded, thus extending its service life and reducing costs and losses. At the same time, a grounding electrode is installed at one end, which is made of the same material as the flowmeter's measuring electrode and is grounded through a grounding wire. This achieves both the purpose of diameter change and the grounding requirement.

[0019] This clamp-on electromagnetic flowmeter is equipped with a grounding ring. By rotating the protrusion, the threaded column is threaded to the inner wall of the round tube. The grounding wire can be positioned using the wiring hole to ensure stability and prevent the grounding wire from shifting position. It can also seal the inner wall of the round tube and the opening inside the grounding hole to prevent foreign objects from entering. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of this application;

[0021] Figure 2 is a schematic diagram of the cross-sectional structure of the adapter flange of this application;

[0022] Figure 3 is a partial structural schematic diagram of this application;

[0023] Figure 4 is a schematic diagram of the unfolded structure of this application.

[0024] The following are the labels in the diagram: 1. Adapter tube; 2. Adapter flange; 3. Grounding hole; 4. Grounding electrode; 5. Bolt 1; 6. Grounding wire; 7. Connecting gasket; 8. Bolt 2; 9. Round tube; 10. Threaded post; 11. Protrusion; 12. Wiring hole. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] Referring to Figures 1-4, a clamp-on electromagnetic flowmeter adapter grounding ring includes an adapter tube 1, an adapter flange 2 fixedly installed on the outer edge of the adapter tube 1, a grounding hole 3 opened on the top of the adapter flange 2, a grounding electrode 4 installed at the bottom of the grounding hole 3, one end of a grounding wire 6 fixedly connected to the top of the grounding electrode 4, a connecting gasket 7 fixedly connected to the other end of the grounding wire 6, a round tube 9 fixedly installed on the outer edge of the adapter flange 2, a threaded post 10 threadedly connected to the inner wall of the round tube 9, and a wiring hole 12 opened on the inner wall of the threaded post 10.

[0027] Referring to Figure 3, the inner wall of the grounding electrode 4 is threaded with a bolt 5. The bottom end of the bolt 5 is threaded to the bottom of the grounding hole 3, so that the grounding electrode 4 can be stably installed at the bottom of the grounding hole 3 using the bolt 5, ensuring that it will not easily detach after installation and improving stability.

[0028] Referring to Figure 3, the inner wall of the connecting gasket 7 is also threaded with bolt 2 8. Both bolt 2 8 and connecting gasket 7 are galvanized metal, which allows the connecting gasket 7 to be fixedly installed to the ground using bolt 2 8, ensuring stability.

[0029] Referring to Figures 3 and 4, the grounding wire 6 is disposed on the inner wall of the wiring hole 12. The outer diameter of the grounding wire 6 is adapted to the inner diameter of the wiring hole 12, so that the grounding wire 6 can be positioned by the wiring hole 12, ensuring that it can be stably disposed inside the circular tube 9, thereby ensuring that the grounding wire 6 will not shift its position arbitrarily.

[0030] Referring to Figure 4, multiple protrusions 11 are fixedly installed on the outer edge of the threaded post 10, which can be used to drive the threaded post 10 to rotate on the inner wall of the round tube 9, so as to realize installation and positioning, ensure stability, and improve the convenience of rotation.

[0031] Referring to Figures 1 and 2, both the adapter pipe 1 and the adapter flange 2 are made of PVC, which improves their corrosion resistance, ensures that they will not be easily corroded, increases their service life, and reduces costs.

[0032] Working principle: When using this device, the electromagnetic flowmeter can first be installed on the outside of the adapter pipe 1. Then, the grounding electrode 4 can be stably installed to the inner wall of the grounding hole 3 using bolt 5. Then, the connecting gasket 7 can be installed on the ground using bolt 8. Then, the protrusion 11 can be rotated to drive the threaded post 10 to be threadedly connected to the inner wall of the round pipe 9. The grounding wire 6 can be positioned using the wiring hole 12 to ensure stability. This ensures that the grounding wire 6 will not shift its position randomly and can seal the inner wall of the round pipe 9 and the internal opening of the grounding hole 3 to prevent foreign objects from entering.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A clamp-on electromagnetic flowmeter adapter grounding ring, comprising an adapter tube (1), characterized in that, An adapter flange (2) is fixedly installed on the outer edge of the adapter tube (1). A grounding hole (3) is opened on the top of the adapter flange (2). A grounding electrode (4) is installed at the bottom of the grounding hole (3). One end of a grounding wire (6) is fixedly connected to the top of the grounding electrode (4). A connecting gasket (7) is fixedly connected to the other end of the grounding wire (6). A round tube (9) is fixedly installed on the outer edge of the adapter flange (2). A threaded post (10) is threadedly connected to the inner wall of the round tube (9). A wiring hole (12) is opened on the inner wall of the threaded post (10).

2. The clamp-on electromagnetic flowmeter adapter grounding ring according to claim 1, characterized in that, The inner wall of the grounding electrode (4) is threaded with a bolt (5), and the bottom end of the bolt (5) is threaded to the bottom of the grounding hole (3).

3. The clamp-on electromagnetic flowmeter adapter grounding ring according to claim 1, characterized in that, The inner wall of the connecting gasket (7) is also threaded with bolt two (8), and both bolt two (8) and connecting gasket (7) are galvanized metal.

4. The clamp-on electromagnetic flow meter grounding adapter ring of claim 1, wherein, The grounding wire (6) is disposed on the inner wall of the wiring hole (12), and the outer diameter of the grounding wire (6) is adapted to the inner diameter of the wiring hole (12).

5. The clamp-on electromagnetic flow meter grounding adapter ring of claim 1, wherein, Multiple protrusions (11) are fixedly installed on the outer edge of the threaded post (10).

6. A clamp-on electromagnetic flowmeter adapter grounding ring according to claim 1, characterized in that, Both the adapter tube (1) and the adapter flange (2) are made of PVC.