Electromagnetic flowmeter with automatic cleaning function
By introducing a rotary ring conductive sheet into the electromagnetic flowmeter to conduct high-frequency vibration, automatically cleaning the dirt on the electrode, solving the problem of dirt layer caused by high viscosity media or sewage, ensuring measurement accuracy and equipment stability.
Patent Information
- Application Number
- CN202422286990.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-19
AI Technical Summary
When existing electromagnetic flowmeters face high viscosity media or sewage containing suspended particles, they are prone to form dirt layers, which affects measurement accuracy and may lead to equipment failure, and signal transmission is blocked during cleaning.
Design an electromagnetic flowmeter with automatic cleaning function, conduct high-frequency vibration through the rotating ring conductive plate, peel off the dirt on the electrode, use high-frequency vibration to automatically clean, and keep the electromagnetic converter signal unchanged during the cleaning process.
It realizes rapid removal of electrode dirt without affecting signal output, maintaining measurement accuracy and normal operation of equipment, and avoiding equipment failures caused by dirt.
Smart Images
Figure CN223166179U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of instruments and meters, in particular to an electromagnetic flowmeter with an automatic cleaning function. Background Art
[0002] While electromagnetic flowmeters are a widely used flow measurement tool in the current market, demonstrating their efficiency and accuracy across numerous industrial and environmental monitoring applications, most models are still limited to using a single set of electrodes for flow measurement. This design performs well with conventional fluids, but its limitations become apparent when dealing with extreme conditions such as media with significantly increased viscosity or handling dirty and complex domestic wastewater.
[0003] Specifically, high-viscosity media or wastewater containing large amounts of suspended particles, grease, and other impurities can easily form a difficult-to-remove layer of dirt or cause adhesion on the electrode surfaces during long-term flow through electromagnetic flowmeters. This dirt not only gradually covers the electrode surface, reducing the effective measuring area, but can also alter the electrical conductivity between the electrodes, causing signal transmission obstruction or distortion in the electromagnetic flowmeter. Over time, this can not only affect the flowmeter's measurement accuracy but can also cause equipment failures, such as probe malfunction and erroneous flow signal output, impacting the monitoring and control of the entire process and the accurate collection and analysis of environmental data. Utility Model Content
[0004] The purpose of the utility model is to provide an electromagnetic flowmeter with an automatic cleaning function to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electromagnetic flowmeter with an automatic cleaning function, comprising a flowmeter body, a pipe is provided in the middle of the interior of the flowmeter body, a connecting cavity is formed between the pipe and the flowmeter body, a rotating ring is rotatably connected to the outer wall of the pipe, an electrode is provided in the middle of the pipe, the top of the electrode is located inside the pipe, a support plate is fixedly connected to the outer wall of the pipe, the electrode is fixedly connected to the support plate, an electromagnetic converter is provided on the flowmeter body, a high-frequency generator is fixedly connected to the side end of the rotating ring, a conductive sheet is fixedly connected to the side end of the rotating ring, a groove is provided at the upper end of the rotating ring, a plurality of engaging teeth are fixedly connected in the groove, a driving gear is rotatably connected to the interior of the flowmeter body, the driving gear is meshed with the engaging teeth, and the electrode, electromagnetic converter and high-frequency generator are electrically connected to each other.
[0006] Preferably, a mounting opening is provided in the middle of the rotating ring, the support plate and the electrode are both located in the mounting opening, and a plurality of slots are provided on the outer side wall of the pipe, wherein a blocking protrusion is inserted into one of the slots.
[0007] Preferably, one side of the conduction sheet is an arc structure, and one side of the conduction sheet is an L-shaped structure. One end of the L-shaped structure is connected to the high-frequency generator.
[0008] Preferably, the support plate is an L-shaped structure. When the conduction sheet abuts against the electrode, the top end of the conduction sheet is located at the support plate.
[0009] Preferably, a magnet column is fixedly connected to the outer side wall of the rotating ring, and a magnetic force probe is embedded in the inner wall of the flowmeter main body.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: by controlling the rotation of the rotating ring, the conduction sheet is abutted against the electrode, the high-frequency vibration is conducted through the conduction sheet, and the dirt is peeled off from the electrode through the high-frequency vibration to complete the cleaning work; by keeping the original model of the electromagnetic converter unchanged during the cleaning process, rapid cleaning is achieved, and the problem that no signal is output during the cleaning process and the user end cannot receive the signal is solved. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic connection diagram of the flowmeter and the electrode.
[0012] Figure 2 It is a schematic internal connection diagram of the connection cavity.
[0013] Figure 3 It is a schematic diagram of the electrode cleaning principle.
[0014] In the figure: 1 flowmeter main body, 2 electromagnetic converter, 3 electrode, 4 rotating ring, 5 support plate, 6 connection cavity, 7 installation port, 8 blocking projection, 9 high-frequency generator, 10 conduction sheet, 11 engaging teeth, 12 driving gear, 13 magnetic force probe, 14 magnet column, 15 pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] In order to deepen the understanding and recognition of the present utility model below, the technical solutions in the embodiments of the present utility model will be clearly and completely described and introduced with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments, and no any form of limitation is imposed on this embodiment. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0016] Please refer to Figures 1-3, the present utility model provides a technical solution: an electromagnetic flowmeter with an automatic cleaning function, including a flowmeter main body 1. In the middle of the interior of the flowmeter main body 1, there is a pipeline 15. A connection cavity 6 is formed between the pipeline 15 and the flowmeter main body 1. A rotating ring 4 is rotatably connected to the outer side wall of the pipeline 15. In the middle of the pipeline 15, there are electrodes 3. The top end of the electrode 3 is located inside the pipeline 15. A support plate 5 is fixedly connected to the outer side wall of the pipeline 15. The electrode 3 is fixedly connected to the support plate 5. An electromagnetic converter 2 is provided on the flowmeter main body 1. A high-frequency generator 9 is fixedly connected to the side end of the rotating ring 4. A conduction piece 10 is fixedly connected to the side end of the rotating ring 4. There is a groove at the upper end of the rotating ring 4, and a plurality of engaging teeth 11 are fixedly connected inside the groove. A driving gear 12 is rotatably connected to the interior of the flowmeter main body 1. The driving gear 12 is meshed with the engaging teeth 11. The electrode 3, the electromagnetic converter 2, and the high-frequency generator 9 are electrically connected to each other. This utility model shows the connection situation of one of the electrodes 3, and the number of electrodes 3 can be set as needed.
[0017] There is an installation opening 7 in the middle of the rotating ring 4. The support plate 5 and the electrode 3 are both located inside the installation opening 7. A plurality of card slots are provided on the outer side wall of the pipeline 15. A blocking protrusion 8 is inserted into one of the card slots. When the rotating ring 4 rotates, the conduction piece abuts against the electrode, and it can conduct the high-frequency vibration generated when the high-frequency generator 9 works. The greater the extrusion force of the conduction piece 10 on the electrode, the greater the vibration conduction amplitude. The blocking protrusion 8 limits the rotation distance of the rotating ring 4 to avoid excessive extrusion force of the conduction piece 10.
[0018] One side of the conduction piece 10 is an arc-shaped structure, and one side of the conduction piece 10 is an L-shaped structure. One end of the L-shaped structure is connected to the high-frequency generator 9. The support plate 5 is an L-shaped structure. When the conduction piece 10 abuts against the electrode 3, the top end of the conduction piece 10 is located at the support plate 5. When the rotating ring 4 rotates, the conduction piece 10 is abutted against the electrode. When the high-frequency generator 9 works, it can generate high-frequency vibration, and these vibrations are conducted through the conduction piece 10 to strip the dirt from the electrode to complete the cleaning work. The extrusion force of the conduction piece 10 is different, and the conduction efficiency of the vibration is different, thereby controlling the vibration amplitude and the cleaning strength.
[0019] A magnet column 14 is fixedly connected to the outer side wall of the rotating ring 4, and a magnetic force probe 13 is embedded in the inner wall of the flowmeter main body 1. When the cleaning is completed, the rotating ring resets, and at the same time, the magnet column 14 rotates together. When the magnet column 14 reaches the magnetic force probe 13, the driving gear stops rotating, thereby positioning the rotating ring 4.
[0020] 1. Under normal use conditions, K is in the off state, the high-frequency generator has no power supply, K1 and K2 do not act, the electromagnetic converter is connected to the electrode 1 and the electrode 2, and the electromagnetic flowmeter is in a normal working state;
[0021] 2. When the cleaning program is executed, K is in the closed state, and at the same time, K1 and K2 act. The high-frequency generator generates a high-frequency oscillation signal, which is transmitted through K1, K2, electrode 1, and electrode 2. High-frequency oscillations are generated at electrode 1 and electrode 2 to peel off the dirt from the electrodes, completing the cleaning work;
[0022] 3. When the cleaning program is executed, the electromagnetic converter keeps the original signal unchanged and the output signal unchanged;
[0023] 4. After the cleaning program is executed, K is disconnected, and K1 and K2 are reset. Electrode 1, electrode 2, and the electromagnetic converter are connected. The electromagnetic converter receives the measurement data of electrode 1 and electrode 2 and is in the normal working state.
[0024] Although the embodiments of the present invention have been shown and described, it should be emphasized that the above description is only an introduction and description of the usage mode of the embodiments of the present invention, and does not impose any form of limitation on the present invention. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An electromagnetic flowmeter with an automatic cleaning function, comprising a flowmeter main body (1), characterized in that: Inside the flowmeter main body (1), a pipeline (15) is provided in the middle. A connection cavity (6) is formed between the pipeline (15) and the flowmeter main body (1). A rotating ring (4) is rotatably connected to the outer side wall of the pipeline (15). An electrode (3) is provided in the middle of the pipeline (15). The top end of the electrode (3) is located inside the pipeline (15). A support plate (5) is fixedly connected to the outer side wall of the pipeline (15). The electrode (3) is fixedly connected to the support plate (5). An electromagnetic converter (2) is provided on the flowmeter main body (1). A high-frequency generator (9) is fixedly connected to the side end of the rotating ring (4). A conduction sheet (10) is fixedly connected to the side end of the rotating ring (4). A groove is provided at the upper end of the rotating ring (4), and a plurality of engaging teeth (11) are fixedly connected in the groove. A driving gear (12) is rotatably connected inside the flowmeter main body (1). The driving gear (12) is meshed with the engaging teeth (11). The electrode (3), the electromagnetic converter (2), and the high-frequency generator (9) are electrically connected to each other.
2. The electromagnetic flowmeter with an automatic cleaning function according to claim 1, wherein: An installation opening (7) is provided in the middle of the rotating ring (4). The support plate (5) and the electrode (3) are both located inside the installation opening (7). A plurality of card slots are provided on the outer side wall of the pipeline (15), and a blocking protrusion (8) is inserted into one of the card slots.
3. The electromagnetic flowmeter with an automatic cleaning function according to claim 1, wherein: One side of the conduction sheet (10) is an arc-shaped structure, and one side of the conduction sheet (10) is an L-shaped structure. One end of the L-shaped structure is connected to the high-frequency generator (9).
4. The electromagnetic flowmeter with an automatic cleaning function according to claim 1, characterized in that: The support plate (5) is an L-shaped structure. When the conduction sheet (10) abuts against the electrode (3), the top end of the conduction sheet (10) is located at the support plate (5).
5. An electromagnetic flowmeter with an automatic cleaning function according to claim 1, characterized in that: A magnet column (14) is fixedly connected to the outer side wall of the rotating ring (4), and a magnetic force probe (13) is embedded in the inner wall of the flowmeter main body (1).