Electromagnetic flowmeter with anti-corrosion function

Abstract

The utility model is applicable to the technical field of flow meters, and provides an electromagnetic flow meter with an anti-corrosion function, which comprises a pipeline, a flow meter is arranged on the upper side of the pipeline, an embedded block is embedded on the inner wall of the pipeline, a plurality of circular contraction grooves are arranged on the outer surface of the embedded block, spray heads are arranged in the contraction grooves, and the spray heads are arranged in the contraction grooves. The outer surface of the spray head is matched with the inner wall of the shrinkage groove, a plurality of spray holes communicating with the interior of the spray head are formed in the annular surface of the spray head, a pushing assembly is arranged on the inner side face of the spray head and comprises a connecting shaft, the connecting shaft is arranged on the inner side face of the spray head, a plurality of connecting cavities are formed in the embedded block, and the other end of the connecting shaft movably penetrates into the connecting cavities. When the spray head is not used, the spray head body can be contracted into the contraction groove, the situation that corrosive liquid enters the spray head body through the spray holes when the corrosive liquid is conveyed in a pipeline, and consequently the interior of the spray head body is corroded is avoided, and the cleaning effect of the spray head on the corrosive liquid on the inner wall of the pipeline is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, and more specifically, to an electromagnetic flow meter with anti-corrosion function. Background Technology

[0002] Electromagnetic flowmeters are instruments that measure the flow rate of conductive fluids by applying the principle of electromagnetic induction and the electromotive force induced when the fluid passes through an external magnetic field. Because electromagnetic flowmeters are in contact with various liquids for extended periods during use, the inner spacer layer is prone to corrosion. Most existing electromagnetic flowmeters are protected against corrosion by spraying corrosion-resistant materials onto the pipe body. However, after a period of use, liquid may remain in the pipe body. If the flowmeter is no longer used for a long time, the accumulated liquid will continue to corrode the pipe body. If the flowmeter is to be used again, a series of treatments such as rust removal will be required.

[0003] A search revealed prior art publication number CN222104805U, which discloses an anti-corrosion electromagnetic flowmeter. This prior art uses a sprayer to clean the sticky liquid and prevent corrosion of the inner wall, thus preventing damage to the equipment.

[0004] However, the inventor believes that the prior art has the following problems when in use: In the prior art, the sprayer is directly installed inside the outer shell, which causes the liquid transported in the pipeline to pass through the sprayer when the electromagnetic flow meter is in use. At the same time, the existing sprayer is provided with spray holes, which causes liquid to enter the sprayer through the spray holes, causing internal corrosion of the sprayer and affecting the subsequent cleaning of the liquid residue on the inner wall of the electromagnetic flow meter. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an electromagnetic flowmeter with anti-corrosion function that allows the nozzle to retract into a shrinkage groove when not in use, thus preventing corrosive liquids from entering the nozzle through the spray hole when transporting corrosive liquids in the pipeline.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An electromagnetic flowmeter with corrosion resistance includes a pipe, a flowmeter is installed on the upper side of the pipe, an embedded block is embedded in the inner wall of the pipe, a plurality of circular contraction grooves are formed on the outer surface of the embedded block, a nozzle is installed in the contraction groove, the outer surface of the nozzle matches the inner wall of the contraction groove, a plurality of spray holes are formed on the annular surface of the nozzle, all of which communicate with the interior of the nozzle, and a pushing component is provided on the inner side of the nozzle.

[0008] The present invention is further configured such that: the pushing component includes a connecting shaft, the connecting shaft is disposed on the inner side of the nozzle, a plurality of connecting cavities are opened in the embedded block, the connecting cavities are at the same horizontal position as the shrinkage groove, the other end of the connecting shaft is movably inserted into the connecting cavity, and a built-in plate that slides in the connecting cavity is provided at one end of the connecting shaft located in the connecting cavity, and the outer surface of the built-in plate is in contact with the inner wall of the connecting cavity.

[0009] The present invention is further configured such that: a spring is movably sleeved on the outer surface of the connecting shaft between the built-in plate and the inner wall of the connecting cavity, one end of the spring is connected to the inner wall of the connecting cavity, and the other end is in contact with the built-in plate.

[0010] The present invention is further configured such that: a water supply pipe is provided on the outside of the pipe, one end of which extends into the connecting cavity, and the other end of the water supply pipe is connected to the pump body.

[0011] The present invention is further configured such that: a fixed shaft is provided on one side of the built-in plate opposite to the connecting shaft, and a fan blade is provided at the other end of the fixed shaft.

[0012] The present invention is further configured such that: the interior of the built-in plate is hollow, and the connecting shaft is connected to both the nozzle and the interior of the built-in plate; and multiple water inlet holes, all of which are connected to the interior of the built-in plate, are opened on the surface of the built-in plate facing away from the connecting shaft.

[0013] The present invention is further configured such that: a plurality of sealing plugs for sealing the water inlet holes are provided on the outer side of the built-in plate; a contact push rod is provided on the surface of the sealing plug facing the built-in plate; the other end of the contact push rod extends into the built-in plate through the water inlet hole and slides through the built-in plate; a sleeve plate is sleeved on the outer surface of the contact push rod located inside the built-in plate; and a tension spring is provided between the sleeve plate and the inner wall of the built-in plate and is movably sleeved on the outer surface of the contact push rod.

[0014] The advantages of this utility model are:

[0015] 1. When not in use, the nozzle of this utility model can retract into the shrinkage groove, which prevents corrosive liquid from entering the nozzle through the spray hole when the pipeline is transporting corrosive liquid, thus avoiding corrosion inside the nozzle and ensuring the nozzle's cleaning effect on the inner wall of the pipeline.

[0016] Second, the connecting shaft of this utility model can drive the nozzle to rotate, which allows the cleaning liquid sprayed from the nozzle to spread under the action of centrifugation, further increasing the cleaning range of the inner wall of the pipe, improving the cleaning effect of the inner wall of the pipe, and preventing corrosion of the inner wall from causing equipment damage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an electromagnetic flowmeter with anti-corrosion function according to the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a partial top view of the internal structure of the embedded block of this utility model;

[0020] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0021] In the diagram: 1. Pipe; 2. Flow meter; 3. Embedded block; 4. Shrinkage groove; 5. Nozzle; 6. Spray hole; 7. Connecting shaft; 8. Connecting cavity; 9. Internal plate; 10. Spring; 11. Fixed shaft; 12. Fan blade; 13. Water inlet; 14. Sealing plug; 15. Contact push rod; 16. Sleeve plate; 17. Tension spring; 18. Water supply pipe. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0025] Please see Figure 1-4 The present invention provides the following technical solution:

[0026] Specifically, it refers to an electromagnetic flowmeter with anti-corrosion function, including a pipe 1, a flowmeter 2 installed on the upper side of the pipe 1, an embedded block 3 embedded in the inner wall of the pipe 1, and multiple circular contraction grooves 4 opened on the outer surface of the embedded block 3. A nozzle 5 is installed in the contraction groove 4, and the outer surface of the nozzle 5 matches the inner wall of the contraction groove 4. Multiple spray holes 6 are opened on the annular surface of the nozzle 5, all of which are connected to its interior. When not in use, the nozzle 5 can retract into the contraction groove 4, which prevents corrosive liquid from entering the nozzle 5 through the spray holes 6 when the pipe 1 is conveying corrosive liquid, thus preventing the nozzle 5 from being corroded. This ensures the cleaning effect of the nozzle 5 on the corrosive liquid on the inner wall of the pipe 1.

[0027] In this embodiment, a corrosion-resistant coating is provided on the outer surface of the nozzle 5 to further improve the corrosion resistance of the nozzle 5.

[0028] Multiple connecting cavities 8 are provided inside the embedded block 3. The connecting cavities 8 and the shrinkage groove 4 are at the same horizontal position. A connecting shaft 7 is provided on the surface of the nozzle 5 facing the connecting cavity 8. The other end of the connecting shaft 7 is movably inserted into the connecting cavity 8. An inner plate 9 is provided at one end of the connecting shaft 7 located in the connecting cavity 8, which slides in the connecting cavity 8. At the same time, the outer surface of the inner plate 9 is in contact with the inner wall of the connecting cavity 8. A spring 10 is provided between the inner plate 9 and the inner wall of the connecting cavity 8, which is movably sleeved on the outer surface of the connecting shaft 7. One end of the spring 10 is connected to the inner wall of the connecting cavity 8, and the other end is in contact with the inner plate 9. When the spring 10 is not compressed, the spring 10 will exert a pushing force on the inner plate 9, so that the inner plate 9 is on the side away from the shrinkage groove 4. At this time, the nozzle 5 retracts into the shrinkage groove 4.

[0029] A water supply pipe 18 is provided on the outside of the pipe 1, with one end penetrating into the connecting cavity 8. The other end of the water supply pipe 18 is connected to the pump body. During use, the pump body draws out the cleaning liquid, which is then transported to the connecting cavity 8 through the water supply pipe 18. The water entering the connecting cavity 8 will exert a thrust on the built-in plate 9, causing the connecting shaft 7 to push the nozzle 5 out of the shrinkage groove 4. After cleaning is completed, the built-in plate 9 loses its compression and is pushed back to its initial position by the spring 10. At the same time, the nozzle 5 is moved back into the shrinkage groove 4.

[0030] A fixed shaft 11 is provided on the side of the built-in plate 9 opposite to the connecting shaft 7. A fan blade 12 is provided at the other end of the fixed shaft 11. When the cleaning fluid is delivered into the connecting cavity 8, the flowing liquid will exert a thrust on the fan blade 12, thereby driving the fan blade 12 to rotate. At this time, the connecting shaft 7 synchronously drives the nozzle 5 to rotate. This allows the cleaning fluid sprayed from the nozzle 6 to spread under the action of centrifugation, further improving the cleaning range of the inner wall of the pipe 1, enhancing the cleaning effect of the inner wall of the pipe 1, and preventing corrosion of the inner wall from causing equipment damage.

[0031] The interior of the built-in plate 9 is hollow, and the connecting shaft 7 is connected to both the nozzle 5 and the interior of the built-in plate 9. The surface of the built-in plate 9 facing away from the connecting shaft 7 has multiple water inlet holes 13 that are connected to its interior. Therefore, the cleaning fluid entering the connecting cavity 8 enters the built-in plate 9 through the water inlet holes 13 and is then transported to the nozzle 5 via the connecting shaft 7.

[0032] Multiple sealing plugs 14 are provided on the outer side of the built-in plate 9 to seal the water inlet hole 13. A contact push rod 15 is provided on the surface of the sealing plug 14 facing the built-in plate 9. The other end of the contact push rod 15 extends into the built-in plate 9 through the water inlet hole 13 and slides through the built-in plate 9. A sleeve plate 16 is sleeved on the outer surface of the contact push rod 15 inside the built-in plate 9. A tension spring 17 is provided between the sleeve plate 16 and the inner wall of the built-in plate 9 and is movably sleeved on the outer surface of the contact push rod 15.

[0033] When the tension spring 17 is not stretched, it exerts a pulling force on the sleeve plate 16, causing the contact push rod 15 to pull the sealing plug 14 into the water inlet hole 13 and seal the water inlet hole 13. Therefore, the liquid delivered into the connecting cavity 8 can exert a pushing force on the built-in plate 9, pushing the built-in plate 9 to slide in the connecting cavity 8. When the nozzle 5 moves out of the shrinkage groove 4, the contact push rod 15 contacts the inner wall of the connecting cavity 8, thereby pushing the sealing plug 14 out of the water inlet hole 13. At the same time, the tension spring 17 is stressed and stretched, so the liquid in the connecting cavity 8 can flow into the built-in plate 9 through the water inlet hole 13. At this time, the flowing liquid can drive the fan blade 12 to rotate. The above structure avoids the liquid that has just entered the connecting cavity 8 from driving the fan blade 12 to rotate, causing the nozzle 5 to rotate in the shrinkage groove 4, reducing the wear between the nozzle 5 and the inner wall of the shrinkage groove 4, and ensuring the sealing between the nozzle 5 and the inner wall of the shrinkage groove 4.

[0034] In this embodiment, the water supply pipe 18 continuously supplies liquid into the connecting cavity 8, and the number of water inlet holes 13 is set so as to ensure that the liquid pushes the built-in plate 9 without the spring 10 pushing the built-in plate 9 to displacement.

[0035] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electromagnetic flowmeter with corrosion resistance, comprising a pipe (1), wherein a flowmeter (2) is disposed on the upper side of the pipe (1), characterized in that: An embedded block (3) is embedded in the inner wall of the pipe (1). Multiple circular shrinkage grooves (4) are opened on the outer surface of the embedded block (3). A nozzle (5) is installed in the shrinkage groove (4). The outer surface of the nozzle (5) matches the inner wall of the shrinkage groove (4). Multiple spray holes (6) are opened on the annular surface of the nozzle (5), all of which are connected to its interior. A pushing component is provided on the inner side of the nozzle (5).

2. The electromagnetic flowmeter with anti-corrosion function according to claim 1, characterized in that: The pushing component includes a connecting shaft (7), which is disposed on the inner side of the nozzle (5). Multiple connecting cavities (8) are provided in the embedded block (3). The connecting cavities (8) and the shrinkage groove (4) are at the same horizontal position. The other end of the connecting shaft (7) is movably inserted into the connecting cavity (8). One end of the connecting shaft (7) located in the connecting cavity (8) is provided with an inner plate (9) that slides in the connecting cavity (8). The outer surface of the inner plate (9) is in contact with the inner wall of the connecting cavity (8).

3. The electromagnetic flowmeter with anti-corrosion function according to claim 2, characterized in that: A spring (10) is provided between the inner wall of the built-in plate (9) and the inner wall of the connecting cavity (8), and is movably sleeved on the outer surface of the connecting shaft (7). One end of the spring (10) is connected to the inner wall of the connecting cavity (8), and the other end is in contact with the built-in plate (9).

4. The electromagnetic flowmeter with anti-corrosion function according to claim 3, characterized in that: A water supply pipe (18) is provided on the outside of the pipe (1), with one end penetrating into the connecting cavity (8), and the other end of the water supply pipe (18) connected to the pump body.

5. An electromagnetic flowmeter with anti-corrosion function according to claim 4, characterized in that: The built-in plate (9) has a fixed shaft (11) on the side opposite to the connecting shaft (7), and a fan blade (12) is provided at the other end of the fixed shaft (11).

6. The electromagnetic flowmeter with anti-corrosion function according to claim 5, characterized in that: The interior of the built-in plate (9) is hollow, and the connecting shaft (7) is connected to the nozzle (5) and the interior of the built-in plate (9) respectively. Multiple water inlet holes (13) are opened on the surface of the built-in plate (9) facing away from the connecting shaft (7), all of which are connected to its interior.

7. The electromagnetic flowmeter with anti-corrosion function according to claim 6, characterized in that: The outer side of the built-in plate (9) is provided with a plurality of sealing plugs (14) that seal the water inlet hole (13). A contact push rod (15) is provided on the surface of the sealing plug (14) facing the built-in plate (9). The other end of the contact push rod (15) extends into the built-in plate (9) through the water inlet hole (13) and slides through the built-in plate (9). A sleeve plate (16) is sleeved on the outer surface of the contact push rod (15) inside the built-in plate (9). A tension spring (17) is provided between the sleeve plate (16) and the inner wall of the built-in plate (9) and is movably sleeved on the outer surface of the contact push rod (15).

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