An externally inserted electrode and electromagnetic flowmeter for easy cleaning of turbid water

Abstract

This utility model discloses an externally inserted electrode and an electromagnetic flowmeter that facilitates cleaning, relating to the field of electromagnetic flowmeter technology. It includes a flowmeter housing and flanges connected to both ends of the housing. By separating the scraper shaft from the electrode column, this application solves the problems of traditional methods where the scraper shaft passes through the middle of the electrode column to work with the cleaning scraper to clean one end, making it inconvenient for personnel to maintain and repair the cleaning mechanism and electrode column, and the cleaning scraper being constantly at the end of the electrode column affecting its normal operation. This improves the practical performance of the electromagnetic flowmeter. Furthermore, this application allows the scraper shaft and cleaning scraper to rotate by rotating a rotating ring along a guide ring outside the operating housing. This solves the problem of traditional electromagnetic flowmeters requiring personnel to open the end cover and reach into the operating housing to operate the cleaning scraper for cleaning the electrode column, thus improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic flowmeter technology, specifically to an externally inserted electrode and an electromagnetic flowmeter that facilitates cleaning. Background Technology

[0002] Electromagnetic flowmeters are velocity-type instruments used for measuring conductive media. They are widely used in quantitative control and flow measurement in industries such as biomedicine, chemical semiconductors, food and beverage, and environmental protection and energy. Electrodes are an important component of electromagnetic flowmeters and are key components for measuring induced electromotive force. If the electrodes are covered or contaminated due to too many impurities in the medium, it will cause a huge deviation in the flowmeter measurement.

[0003] Traditional electromagnetic flowmeters use a scraper shaft that passes through the middle of the electrode column to clean one end of the electrode column with a cleaning scraper. This design places the cleaning mechanism and the electrode column together, making it difficult for personnel to distinguish, maintain, and repair the cleaning mechanism and the electrode column. Furthermore, even when cleaning is not being performed, the cleaning scraper will always be at the end of the electrode column, thus affecting the normal operation of the electrode column and resulting in poor practical performance of the electromagnetic flowmeter.

[0004] Meanwhile, when cleaning the electrode column of a traditional electromagnetic flowmeter, personnel need to open the end cover and reach into the operating housing to operate the cleaning scraper to rotate and clean the electrode column. This makes the work efficiency of personnel during cleaning low, and it is also inconvenient for personnel to reach into the operating housing to clean the electrode column. Utility Model Content

[0005] To address the above problems, this utility model provides an externally inserted electrode and an electromagnetic flowmeter that facilitates cleaning, thus solving the aforementioned issues.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an externally inserted electrode and an electromagnetic flowmeter that facilitates cleaning, comprising a flowmeter housing and flanges connected to both ends of the flowmeter housing, wherein a ceramic conduit is connected inside the flowmeter housing, and two coils are installed outside the ceramic conduit, the two coils being symmetrically distributed;

[0007] Two cleaning mechanisms are connected to the outside of the flow meter housing. The two cleaning mechanisms are symmetrically distributed. Each cleaning mechanism includes an operating shell. An annular groove is opened in the middle section of the operating shell. Two fixing lugs are connected to the outside of the operating shell.

[0008] The operating housing is provided with a guide ring on the outside, and a rotating ring is provided on one side of the annular groove. The rotating ring is connected to the guide ring. Several rotating grooves are opened on the outside of the rotating ring. A connecting arm is connected to the inside of the rotating ring. The connecting arm is disposed in the annular groove, and a scraper shaft is connected to one end of the connecting arm.

[0009] In order to clean one end of the electrode post, preferably, the scraper shaft is rotatably connected to the ceramic conduit, and one end of the scraper shaft is connected to a cleaning scraper.

[0010] Preferably, a guide groove is provided on the inner side of the rotating ring, and the guide groove is slidably connected to the guide ring.

[0011] Preferably, one side of the operating housing is connected to the outside of the flow meter housing, and one end of the operating housing is threadedly connected to an end cap.

[0012] To facilitate the external insertion of the electrodes and the disassembly and installation of the electrode posts, preferably, the ceramic conduit has two electrode holes on its exterior, the electrode posts are threaded into the interior of the electrode holes, and a PTFE sleeve is provided between the electrode posts and the electrode holes.

[0013] Preferably, a conduit is connected to the outside of the flow meter housing, and a conversion display is connected to the top of the conduit.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This application separates the scraper shaft from the electrode column, allowing personnel to easily operate the cleaning and turbidity scraper and the electrode column independently. This ensures that the cleaning and turbidity scraper will not affect the normal operation of the electrode column when it is not turbid. It solves the problems of traditional scraper shaft passing through the middle of the electrode column to clean one end of the electrode column, which is inconvenient for personnel to maintain and repair the cleaning mechanism and the electrode column, and the cleaning and turbidity scraper being always at the end of the electrode column will affect the normal operation of the electrode column. This is beneficial to improving the practical performance of the electromagnetic flowmeter.

[0016] 2. This application utilizes a rotating ring that rotates along a guide ring outside the operating housing to drive the scraper shaft and the cleaning scraper to rotate. This allows the cleaning scraper to clean one end of the electrode column, enabling personnel to directly rotate the rotating ring for cleaning. This solves the problem of traditional electromagnetic flowmeters requiring personnel to open the end cover and reach into the operating housing to operate the cleaning scraper to clean the electrode column. This improves work efficiency and facilitates the cleaning of the electrode column. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the flow meter housing of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of region A of this utility model;

[0021] Figure 5 This is an exploded view of the operating shell and end cap of this utility model;

[0022] Figure 6 This is a schematic diagram of the turbidity clearing mechanism of this utility model;

[0023] Figure 7 This is a partial structural diagram of the purifying and turbidifying mechanism of this utility model.

[0024] The diagram shows the following labels: 1. Flowmeter housing; 2. Flange; 3. Ceramic conduit; 4. Coil; 5. Through-line pipe; 6. Converter display; 7. Electrode hole; 8. Electrode post; 9. PTFE sleeve; 10. Cleaning / turbidity mechanism; 11. Operating shell; 12. End cap; 13. Circulating groove; 14. Fixing lug; 15. Guide ring; 16. Guide groove; 17. Rotating ring; 18. Rotating groove; 19. Connecting arm; 20. Scraper shaft; 21. Cleaning / turbidity scraper. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] Please see Figures 1 to 7 An external electrode and electromagnetic flowmeter for easy cleaning includes a flowmeter housing 1 and flanges 2 connected to both ends of the flowmeter housing 1. The electromagnetic flowmeter is connected to the flow pipe through the flanges 2 at both ends to install and fix the electromagnetic flowmeter. A ceramic conduit 3 is connected inside the flowmeter housing 1. Two coils 4 are installed on the outside of the ceramic conduit 3. The two coils 4 are symmetrically distributed. When the electromagnetic flowmeter is working, the two coils 4 are energized, which will form a magnetic field between the two coils 4. This magnetic field force causes the negatively charged and positively charged particles in the fluid to separate when passing through the magnetic field. The separation will cause an induced voltage to be formed between the electrode posts 8 on the ceramic conduit 3. The induced voltage is transmitted to the conversion display 6 through the electrode posts 8 and the electrode wire. Then the conversion display 6 will convert the voltage into a quantifiable flow rate.

[0027] The working principles and processes described above are all well-known technologies and are common knowledge to those skilled in the art. Those skilled in the art can and should understand their specific functions and structures, so they will not be elaborated on here.

[0028] Two cleaning mechanisms 10 are connected to the outside of the flow meter housing 1. The two cleaning mechanisms 10 are symmetrically distributed. Each cleaning mechanism 10 includes an operating housing 11. An annular groove 13 is provided in the middle section of the operating housing 11. Two fixing ears 14 are connected to the outside of the operating housing 11. Because the annular groove 13 in the middle section of the operating housing 11 divides the operating housing 11 into two parts, the two fixing ears 14 are used to ensure the integrity of the operating housing 11 in order to ensure the connection and fixation of these two parts. It should be noted that the fixing ears 14 are U-shaped, so the fixing ears 14 will not affect the rotation of the rotating ring 17 outside the annular groove 13.

[0029] The operating housing 11 is provided with a guide ring 15 on the outside, and a rotating ring 17 is provided on one side of the annular groove 13. The rotating ring 17 is connected to the guide ring 15. Several rotating grooves 18 are opened on the outside of the rotating ring 17. A connecting arm 19 is connected to the inside of the rotating ring 17. The connecting arm 19 is set in the annular groove 13. One end of the connecting arm 19 is connected to a scraper shaft 20. When cleaning the end of the electrode column 8, the operator directly rotates the rotating ring 17. The rotating ring 17 will rotate on the outside of the annular groove 13, driving the connecting arm 19 to rotate in the annular groove 13.

[0030] It should be further added that the rotating groove 18 on the outside of the rotating ring 17 can increase the friction of the rotating ring 17, thereby making it easier for personnel to exert force to rotate the rotating ring 17. Specifically, the rotating groove 18 increases the friction between the personnel's hands and the surface of the rotating ring 17, making the rotation operation more stable and effortless, and reducing the possibility of the personnel's hands slipping during the rotation.

[0031] When the connecting arm 19 rotates, it will drive the scraper shaft 20 to rotate in the ceramic conduit 3. The scraper shaft 20 drives the cleaning scraper 21 to rotate. When the cleaning scraper 21 rotates to the electrode post 8, the cleaning scraper 21 will clean the end of the electrode post 8.

[0032] Therefore, the ability for personnel to directly rotate the rotating ring 17 to perform the cleaning work solves the problem that traditional electromagnetic flowmeters require personnel to open the end cover 12 and insert their hands into the operating shell 11 to operate the cleaning scraper 21 to clean the electrode column 8. This is beneficial to improving the work efficiency of personnel and making it more convenient for personnel to perform the cleaning work on the electrode column.

[0033] The scraper shaft 20 is rotatably connected to the ceramic conduit 3. One end of the scraper shaft 20 is connected to the cleaning scraper 21. When the end face of the electrode column 8 is not being cleaned, the cleaning scraper 21 is rotated to one side (so that the cleaning scraper 21 is not located at the end face of the electrode column 8). This avoids the problem that the cleaning scraper 21 being always at the end of the electrode column 8 will affect the normal operation of the electrode column 8. This solves the problem that the traditional scraper shaft 20 passes through the middle of the electrode column 8 and works with the cleaning scraper 21 to clean one end of the electrode column 8, which is inconvenient for personnel to maintain and repair the cleaning mechanism 10 and the electrode column 8, and that the cleaning scraper 21 being always at the end of the electrode column 8 will affect the normal operation of the electrode column 8. This is beneficial to improving the practical performance of the electromagnetic flowmeter.

[0034] It should be further explained that an indicator arrow is provided on one side of the rotating ring 17, and the personnel can obtain the angle of the cleaning and turbidity scraper 21 by means of the indicator arrow, so that the personnel can accurately control the cleaning and turbidity scraper 21 by rotating the ring 17.

[0035] A guide groove 16 is provided on the inner side of the rotating ring 17. The guide groove 16 is slidably connected to the guide ring 15. The rotation of the rotating ring 17 is guided by the cooperation of the guide groove 16 and the guide ring 15, so as to ensure the stability of the rotating ring 17 during the rotation process.

[0036] One side of the operating housing 11 is connected to the outside of the flow meter housing 1, and one end of the operating housing 11 is threadedly connected to an end cap 12.

[0037] The ceramic conduit 3 has two electrode holes 7 on its outside. The electrode holes 7 are internally threaded. The electrode post 8 is threadedly connected to the electrode holes 7 to allow for external insertion of the electrode post 8, which facilitates the installation and removal of the electrode post 8 by personnel. Specifically, personnel only need to open the end cover 12 to install and remove the electrode post 8 inside the operating shell 11. The electrode post 8 is internally threaded in the electrode hole 7. The tail of the electrode post 8 is connected to an electrode wire, so that the induced voltage is transmitted from the electrode post 8 to the conversion display 6 through the electrode wire. A PTFE sleeve 9 is provided between the electrode post 8 and the electrode hole 7 for insulation of the electrode post 8.

[0038] The flowmeter housing 1 is externally connected to a conduit 5, and a conversion display 6 is connected to the top of the conduit 5. The electrode wires are connected to the conversion display 6 in the flowmeter housing 1 through the conduit 5. The wiring arrangement and circuit structure of the electrode wires are all conventional means that can be understood and implemented by those skilled in the art based on common sense, which can ensure that the technical solution is fully implemented. Furthermore, the conversion display 6 is also a well-known technology and is currently very mature. Those skilled in the art can and should understand its specific functions and structure, so it will not be described in detail here.

[0039] When using this utility model:

[0040] First, the electromagnetic flow meter is connected to the flow pipe through flanges 2 at both ends to install and fix the electromagnetic flow meter. When the electromagnetic flow meter is working, the two coils 4 are energized, which will form a magnetic field between the two coils 4. This magnetic field force causes the negatively charged and positively charged particles in the fluid to separate when passing through the magnetic field. The separation will cause an induced voltage to be formed between the electrode posts 8 on the ceramic conduit 3. The induced voltage is transmitted to the conversion display 6 through the electrode posts 8 and the electrode wire. Then the conversion display 6 will convert the voltage into a quantifiable flow rate.

[0041] Secondly, when cleaning the end of the electrode post 8, the operator directly rotates the rotating ring 17. The rotating ring 17 rotates outside the annular groove 13, causing the connecting arm 19 to rotate in the annular groove 13. The rotating groove 18 on the outside of the rotating ring 17 can increase the friction of the rotating ring 17, thereby making it easier for the operator to exert force to rotate the rotating ring 17. Specifically, the rotating groove 18 increases the friction between the operator's hand and the surface of the rotating ring 17, making the rotation operation more stable and effortless, and reducing the possibility of the operator's hand slipping during rotation.

[0042] Then, when the connecting arm 19 rotates, it will drive the scraper shaft 20 to rotate in the ceramic conduit 3. The scraper shaft 20 drives the cleaning scraper 21 to rotate. When the cleaning scraper 21 rotates to the electrode column 8, the cleaning scraper 21 will clean the end of the electrode column 8. Therefore, the cleaning work can be carried out by simply rotating the rotating ring 17. This solves the problem that when cleaning the electrode column 8 with a traditional electromagnetic flowmeter, it is necessary for personnel to open the end cover 12 and reach into the operating shell 11 to operate the cleaning scraper 21 to rotate and clean the electrode column 8. This is beneficial to improving the work efficiency of personnel and making it more convenient for personnel to clean the electrode column.

[0043] Finally, when not cleaning the end face of the electrode post 8, rotate the cleaning scraper 21 to one side (so that the cleaning scraper 21 is not located at the end face of the electrode post 8) to avoid the cleaning scraper 21 being always at the end of the electrode post 8 and affecting the normal operation of the electrode post 8. It should be further noted that an indicator arrow is provided on one side of the rotating ring 17. The angle of the cleaning scraper 21 can be obtained by the indicator arrow, which makes it easy for the personnel to accurately control the cleaning scraper 21 by rotating the ring 17.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An externally inserted electrode and electromagnetic flowmeter for easy cleaning, comprising a flowmeter housing (1) and flanges (2) connected to both ends of the flowmeter housing (1), characterized in that: The flow meter housing (1) is internally connected to a ceramic conduit (3), and two coils (4) are installed on the outside of the ceramic conduit (3), with the two coils (4) being symmetrically distributed. Two cleaning mechanisms (10) are connected to the outside of the flow meter housing (1). The two cleaning mechanisms (10) are symmetrically distributed. Each cleaning mechanism (10) includes an operating shell (11). An annular groove (13) is provided in the middle section of the operating shell (11). Two fixing ears (14) are connected to the outside of the operating shell (11). The operating housing (11) is provided with a guide ring (15) on the outside, and a rotating ring (17) is provided on one side of the annular groove (13). The rotating ring (17) is connected to the guide ring (15). Several rotating grooves (18) are opened on the outside of the rotating ring (17). A connecting arm (19) is connected to the inside of the rotating ring (17). The connecting arm (19) is located in the annular groove (13). One end of the connecting arm (19) is connected to a scraper shaft (20).

2. The externally inserted electrode and electromagnetic flowmeter for easy cleaning according to claim 1, characterized in that: The scraper shaft (20) is rotatably connected to the ceramic conduit (3), and one end of the scraper shaft (20) is connected to a cleaning scraper (21).

3. The externally inserted electrode and electromagnetic flowmeter for easy cleaning according to claim 1, characterized in that: The inner side of the rotating ring (17) is provided with a guide groove (16), and the guide groove (16) is slidably connected to the guide ring (15).

4. The externally inserted electrode and electromagnetic flowmeter for easy cleaning of claim 1, wherein: One side of the operating housing (11) is connected to the outside of the flow meter housing (1), and one end of the operating housing (11) is threadedly connected to an end cap (12).

5. The externally inserted electrode and electromagnetic flowmeter for easy cleaning of claim 1, wherein: The ceramic conduit (3) has two electrode holes (7) on its outside. The electrode holes (7) are threaded with electrode posts (8). A PTFE sleeve (9) is provided between the electrode posts (8) and the electrode holes (7).

6. The externally inserted electrode and electromagnetic flowmeter for easy cleaning of claim 1, wherein: The flow meter housing (1) is externally connected to a conduit (5), and a conversion display (6) is connected to the top of the conduit (5).

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