A 12 volt low power electromagnetic flowmeter

Abstract

The utility model relates to the technical field of electromagnetic flowmeter, and disclose a kind of 12 volt low-power electromagnetic flowmeter, including detection pipeline, the outer surface of detection pipeline is fixedly equipped with excitation coil, the upper surface of excitation coil is fixedly installed with converter, wherein, excitation coil is provided with protection mechanism, protection mechanism includes outer protection bushing, connecting plate, six hollow columns, six springs, six collars, six fixed sticks, twelve grooves, six pull rings, twelve round holes, twelve beads, six insertion slots, twelve clamping holes, conductive fibre layer, anti-radio frequency layer and outer protective layer, the 12 volt low-power electromagnetic flowmeter, the way of clamping is used to install outer protection bushing, compared with the protection layer of the integrated type that traditional electromagnetic flowmeter uses, the mode can be replaced in time when the protection effect of protection layer declines, improve protection effect, to reduce the influence on electromagnetic flowmeter, improve the accuracy of electromagnetic flowmeter.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic flowmeter technology, specifically a 12-volt low-power electromagnetic flowmeter. Background Technology

[0002] Electromagnetic flow meters are instruments that use the principle of electromagnetic induction to measure the flow rate of conductive fluids based on the electromotive force induced when the fluid passes through an external magnetic field. Modern electromagnetic flow meters are designed for low power consumption, making them more suitable for use when switching between high and low flow rates.

[0003] Electromagnetic flowmeter electrodes are used to apply an external magnetic field to conductive fluids. If the electrodes come into contact with other conductive components or conductive fluids, it will affect the electromotive force of the applied magnetic field. Therefore, insulation of the electrodes from other conductive components or conductive liquids is a key factor in ensuring the accuracy of electromagnetic flowmeters. If there is a lack of shielding against the external magnetic field, it will affect the electromagnetic flowmeter. Most existing protection methods involve an integrated protective bushing fixed to the outer surface of the electromagnetic flowmeter. Due to the use of beryllium copper plates and conductive cloth for protection, the protection effect is poor after long-term use, requiring replacement of the protective bushing. The outer protective bushing cannot be easily disassembled and reassembled, causing inconvenience. In view of this, a 12-volt low-power electromagnetic flowmeter is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a 12-volt low-power electromagnetic flow meter, which solves the problem of poor protection of electromagnetic flow meters.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned goal of improving the protection of electromagnetic flowmeters, this utility model provides the following technical solution: a 12-volt low-power electromagnetic flowmeter, including a detection pipe, an excitation coil fixedly sleeved on the outer surface of the detection pipe, and a converter fixedly installed on the upper surface of the excitation coil;

[0008] The excitation coil is equipped with a protective mechanism, which includes an outer protective bushing, a connecting plate, six hollow columns, six springs, six collars, six fixing rods, twelve grooves, six pull rings, twelve round holes, twelve round beads, six slots, twelve locking holes, a conductive fiber layer, an anti-radio frequency layer, and an outer protective layer.

[0009] Preferably, the two outer protective bushings are disposed on the outer surface of the excitation coil, and the two connecting plates are respectively fixedly installed on the outer surface of the two outer protective bushings;

[0010] Six slots are located on the upper surface of the connecting plate, and twelve card holes are located on the inner surface of the six slots.

[0011] Preferably, the six hollow columns are movably mounted on the inner surface of the connecting plate, the twelve round holes are respectively opened on the outer surface of the six hollow columns, and the twelve round beads are respectively disposed on the inner surface of the twelve round holes.

[0012] Preferably, the six springs are respectively fixedly installed in the inner wall of the six hollow columns, and the six collars are respectively fixedly installed at the lower end of the six springs;

[0013] The six fixed rods are respectively fixedly sleeved on the inner surface of the six collars, and the six fixed rods are slidably connected to the six hollow columns.

[0014] Preferably, the six pull rings are fixedly installed on the outer surfaces of the six fixed rods, and the twelve grooves are respectively formed on the outer surfaces of the six fixed rods.

[0015] Preferably, the conductive fiber layer is disposed on the inner surface of the outer protective bushing, the radio frequency shielding layer is disposed on the inner surface of the outer protective bushing, and the outer protective layer is disposed on the outer surface of the outer protective bushing.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a 12-volt low-power electromagnetic flow meter, which has the following beneficial effects:

[0018] 1. This 12V low-power electromagnetic flow meter uses a snap-fit ​​method to install the outer protective bushing. Compared with the traditional electromagnetic flow meter that uses an integrated protective layer, this method allows for timely replacement of the protective layer when its protective effect decreases, thereby improving the protection effect, reducing the impact on the electromagnetic flow meter, and improving the accuracy of the electromagnetic flow meter.

[0019] 2. This 12V low-power electromagnetic flowmeter has a conductive fiber layer that has far superior static elimination and prevention performance compared to antistatic fibers. The anti-radio frequency layer provides excellent conductivity, shielding effectiveness, and corrosion resistance, which can meet the requirements of various ranges. The outer protective layer can, to a certain extent, prevent the outer protective bushing from accumulating a lot of dust. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a 12V low-power electromagnetic flowmeter according to the present invention;

[0021] Figure 2 This is a schematic diagram of the excitation coil structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the connecting plate structure of this utility model;

[0023] Figure 4This is a schematic diagram of the outer protective bushing structure of this utility model.

[0024] In the diagram: 1. Detection pipe; 2. Excitation coil; 3. Outer protective bushing; 4. Converter; 5. Connecting plate; 6. Hollow column; 7. Spring; 8. Collar; 9. Fixing rod; 10. Groove; 11. Pull ring; 12. Round hole; 13. Round bead; 14. Slot; 15. Snap-hole; 16. Conductive fiber layer; 17. Radio frequency shielding layer; 18. Outer protective layer. 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] Please see Figure 1-4 This utility model provides a new technical solution: a 12-volt low-power electromagnetic flow meter, including a detection pipe 1, an excitation coil 2 fixedly sleeved on the outer surface of the detection pipe 1, and a converter 4 fixedly installed on the upper surface of the excitation coil 2.

[0027] The excitation coil 2 is equipped with a protective mechanism, which includes an outer protective bushing 3, a connecting plate 5, six hollow columns 6, six springs 7, six collars 8, six fixing rods 9, twelve grooves 10, six pull rings 11, twelve round holes 12, twelve round beads 13, six slots 14, twelve card holes 15, a conductive fiber layer 16, an anti-radio frequency layer 17, and an outer protective layer 18.

[0028] Furthermore, two outer protective bushings 3 are disposed on the outer surface of the excitation coil 2, and two connecting plates 5 are respectively fixedly installed on the outer surface of the two outer protective bushings 3;

[0029] Six slots 14 are formed on the upper surface of the connecting plate 5, and twelve slot holes 15 are formed on the inner surface of the six slots 14.

[0030] Furthermore, six hollow columns 6 are movably mounted on the inner surface of the connecting plate 5, twelve round holes 12 are respectively opened on the outer surface of the six hollow columns 6, and twelve round beads 13 are respectively set on the inner surface of the twelve round holes 12.

[0031] Furthermore, six springs 7 are respectively fixedly installed in the inner walls of six hollow columns 6, and six collars 8 are respectively fixedly installed at the lower ends of six springs 7;

[0032] Among them, six fixed rods 9 are respectively fixedly sleeved on the inner surface of six collars 8, and the six fixed rods 9 are respectively slidably connected to six hollow columns 6.

[0033] Furthermore, six pull rings 11 are respectively fixedly installed on the outer surface of six fixed rods 9, and twelve grooves 10 are respectively opened on the outer surface of six fixed rods 9;

[0034] Furthermore, the conductive fiber layer 16 is disposed on the inner surface of the outer protective bushing 3, the radio frequency shielding layer 17 is disposed on the inner surface of the outer protective bushing 3, and the outer protective layer 18 is disposed on the outer surface of the outer protective bushing 3.

[0035] The 12V low-power electromagnetic flowmeter pulls the pull ring 11 upwards. The pull ring 11 causes the lower surface of the fixed rod 9 to move upwards. The fixed rod 9 then causes the collar 8, which is fixedly mounted on the outer surface, to move upwards. The collar 8 applies pressure to the spring 7, which is fixedly mounted on the upper surface, causing it to contract. At this time, the two grooves 10 on the outer surface of the fixed rod 9 align with the two round holes 12 on the outer surface of the hollow column 6. The beads 13 inside the two round holes 12 are no longer under the pressure applied by the fixed rod 9, and the beads 13 retract into the hollow column 6. At this point, the hollow column 6 is inserted into the slot 14 on the upper surface of another connecting plate 5, and the two round holes 12 on the outer surface of the hollow column 6 are aligned with the two locking holes 15 on the inner wall of the slot 14. At this point, no pulling force is applied to the pull ring 11, and the spring 7 is no longer under force. The spring 7 expands, applying a downward pushing force to the lower end of the fixed collar 8. The collar 8 then moves the fixed rod 9, which is fixed to the inner surface, downward. The fixed rod 9 then strikes the two round beads 13, applying opposing pushing forces to them. The hollow column 6 protrudes and is fixed in the slot 14 by the slot hole 15. At this time, the outer protective bushing 3 is installed. The outer protective bushing 3 is provided with a conductive fiber layer 16. The conductive fiber layer 16 is a chemical fiber or metal fiber, carbon fiber, etc. spun by mixing conductive medium into polymer. It has excellent static elimination and prevention performance far superior to antistatic fiber. The anti-radio frequency layer 17 is a fiber cloth (generally polyester fiber cloth) that has been pre-treated and then electroplated with a metal coating to make it have metallic properties and become conductive fiber. The most basic layer is highly conductive copper. The outer layer combined with nickel has corrosion resistance. The nickel / copper / nickel coated polyester fiber cloth provides excellent conductivity, shielding effectiveness and corrosion resistance to meet the requirements of various ranges. The shielding range is 100K-3GHz. The outer protective layer 18 is composed of deionized water, surfactant, nano titanium dioxide particles, nano cerium oxide and nano zinc oxide mixture, organic solvent and nano silicon dioxide. The outer protective layer can prevent the outer protective bushing 3 from adhering to a lot of dust to a certain extent.

[0036] This 12V low-power electromagnetic flowmeter is installed with the outer protective bushing 3 via a snap-fit ​​method. Compared to the traditional electromagnetic flowmeter that uses an integrated protective layer, this method allows for timely replacement of the protective layer when its protective effect deteriorates, improving the protection effect and reducing the impact on the electromagnetic flowmeter, thereby improving the accuracy of the electromagnetic flowmeter. The 12V low-power electromagnetic flowmeter uses a conductive fiber layer 16, which has a much better performance in eliminating and preventing static electricity than antistatic fibers. The anti-radio frequency layer 17 provides excellent conductivity, shielding effectiveness, and corrosion resistance, making it suitable for various requirements. The outer protective layer 18 can, to a certain extent, prevent the outer protective bushing 3 from accumulating a lot of dust.

[0037] Working principle: When the 12V low-power electromagnetic flowmeter pulls the pull ring 11 upwards, the pull ring 11 causes the lower surface of the fixed rod 9 to move upwards. The fixed rod 9 then causes the collar 8, which is fixedly mounted on the outer surface, to move upwards. The collar 8 applies pressure to the spring 7, which is fixedly mounted on the upper surface, causing it to contract. At this time, the two grooves 10 on the outer surface of the fixed rod 9 align with the two round holes 12 on the outer surface of the hollow column 6. The beads 13 inside the two round holes 12 are no longer under the pressure applied by the fixed rod 9, and the beads 13 retract into the hollow column. Inside column 6, the hollow column 6 is inserted into the slot 14 on the upper surface of another connecting plate 5, and the two round holes 12 on the outer surface of the hollow column 6 are aligned with the two locking holes 15 on the inner wall of the slot 14. At this time, no pulling force is applied to the pull ring 11, and the spring 7 is no longer under force. At this time, the spring 7 expands and applies a downward pushing force to the collar 8 fixedly installed at the lower end. At this time, the collar 8 drives the fixing rod 9 fixedly installed on the inner surface to move downward. At this time, the fixing rod 9 strikes the two round balls 13 and applies opposing pushing forces to the two round balls 13. This allows the hollow column 6 to protrude and be fixed in the slot 14 through the slot 15. At this point, the outer protective bushing 3 is installed. The outer protective bushing 3 is provided with a conductive fiber layer 16. The conductive fiber layer 16 is a chemical fiber or metal fiber, carbon fiber, etc., spun by mixing conductive medium into polymer. It has excellent static elimination and prevention performance far superior to antistatic fibers. The radio frequency shielding layer 17 is a fiber cloth (usually polyester fiber cloth) that has been pre-treated and then electroplated with a metal coating to give it metallic properties and become a conductive fiber. The most basic layer is highly conductive copper, and the outer layer combined with nickel has corrosion resistance. The nickel / copper / nickel coated polyester fiber cloth provides excellent conductivity, shielding effectiveness and corrosion resistance to meet various requirements. The shielding range is 100K-3GHz. The outer protective layer 18 is composed of deionized water, surfactant, nano titanium dioxide particles, nano cerium oxide and nano zinc oxide mixture, organic solvent and nano silicon dioxide. The outer protective layer can prevent the outer protective bushing 3 from accumulating a lot of dust to a certain extent.

[0038] 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. A 12-volt low-power electromagnetic flowmeter, comprising a detection pipe (1), wherein an excitation coil (2) is fixedly sleeved on the outer surface of the detection pipe (1), characterized in that: A converter (4) is fixedly installed on the upper surface of the excitation coil (2); The excitation coil (2) is equipped with a protective mechanism, which includes an outer protective bushing (3), a connecting plate (5), six hollow columns (6), six springs (7), six collars (8), six fixing rods (9), twelve grooves (10), six pull rings (11), twelve round holes (12), twelve round beads (13), six slots (14), twelve card holes (15), a conductive fiber layer (16), an anti-radio frequency layer (17), and an outer protective layer (18).

2. The 12V low-power electromagnetic flowmeter according to claim 1, characterized in that: Two outer protective bushings (3) are disposed on the outer surface of the excitation coil (2), and two connecting plates (5) are respectively fixedly installed on the outer surface of the two outer protective bushings (3); Among them, six slots (14) are opened on the upper surface of the connecting plate (5), and twelve card holes (15) are opened on the inner surface of the six slots (14).

3. The 12V low-power electromagnetic flowmeter according to claim 1, characterized in that: The six hollow columns (6) are movably installed on the inner surface of the connecting plate (5), the twelve round holes (12) are respectively opened on the outer surface of the six hollow columns (6), and the twelve round beads (13) are respectively set on the inner surface of the twelve round holes (12).

4. The 12V low-power electromagnetic flowmeter according to claim 1, characterized in that: The six springs (7) are respectively fixedly installed in the inner wall of the six hollow columns (6), and the six collars (8) are respectively fixedly installed at the lower end of the six springs (7); Among them, six fixed rods (9) are fixedly sleeved on the inner surface of six collars (8), and the six fixed rods (9) are slidably connected to six hollow columns (6).

5. A 12V low-power electromagnetic flowmeter according to claim 1, characterized in that: The six pull rings (11) are respectively fixedly installed on the outer surface of the six fixed rods (9), and the twelve grooves (10) are respectively opened on the outer surface of the six fixed rods (9).

6. The 12V low-power electromagnetic flowmeter according to claim 1, characterized in that: The conductive fiber layer (16) is disposed on the inner surface of the outer protective bushing (3), the radio frequency shielding layer (17) is disposed on the inner surface of the outer protective bushing (3), and the outer protective layer (18) is disposed on the outer surface of the outer protective bushing (3).

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