High-precision low-noise electromagnetic flowmeter

Abstract

The utility model discloses a high-precision low-noise electromagnetic flowmeter, relates to the technical field of electromagnetic flowmeters, and aims to solve the problems that the interior of an existing electromagnetic flowmeter is lack of a noise reduction structure, fluid flowing noise is easily conducted to the outside, meanwhile, an internal electrode is easily abraded, the accuracy of data detected for a long time cannot be guaranteed, and the flow rate is low. According to the technical scheme, the silencer comprises a pipe base, a high-abrasion-resistance ceramic lining is installed in the pipe base, a cavity is formed between the high-abrasion-resistance ceramic lining and the inner wall of the pipe base, the cavity is filled with silencing cotton, and the high-abrasion-resistance ceramic lining is wrapped with the silencing cotton; the symmetrical positions of the inner wall of the high-wear-resistance ceramic lining are each provided with a mounting base. The effects that the noise generated when the fluid penetrates through the interior of the flow meter can be effectively eliminated, meanwhile, abrasion of the fluid to the electrode can be reduced, then the long-term detection data accuracy can be guaranteed, and practicability is high are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, in particular to a high-precision, low-noise electromagnetic flowmeter. Background Art

[0002] The electromagnetic flowmeter is a new type of flow measurement instrument that developed rapidly in the 1950s and 1960s with the development of electronic technology. The electromagnetic flowmeter is an instrument that uses the principle of electromagnetic induction to measure the flow rate of conductive fluid based on the electromotive force induced when the conductive fluid passes through an external magnetic field. It is widely used in contemporary industrial detection.

[0003] Existing electromagnetic flowmeters lack internal silencer structures, and the noise of fluid flow is easily transmitted to the outside. At the same time, the internal electrodes are easily worn, and the accuracy of long-term detection data cannot be guaranteed. The practicality needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a high-precision, low-noise electromagnetic flowmeter that can effectively eliminate the noise caused by the fluid passing through the flowmeter, while reducing the wear of the fluid on the electrodes, thereby ensuring long-term detection data accuracy and high practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A high-precision, low-noise electromagnetic flowmeter comprises a tube seat, wherein a high-wear-resistant ceramic lining is installed inside the tube seat, a cavity is provided between the high-wear-resistant ceramic lining and the inner wall of the tube seat, and the interior of the cavity is filled with sound-absorbing cotton, and the sound-absorbing cotton is wrapped around the outside of the high-wear-resistant ceramic lining, a mounting seat is provided at symmetrical positions on the inner wall of the high-wear-resistant ceramic lining, a mounting hole is provided at the middle position of the mounting seat, and an electrode is mounted on the inner buckle of the mounting hole, and one end of the electrode is combined with the mounting seat to form a hemispherical structure.

[0007] By adopting the above technical solution, the wear rate of the electrode can be reduced, the long-term detection accuracy can be improved, and the noise of the fluid flow can be absorbed, and the overall practicality is effectively improved.

[0008] Furthermore, a sealing rubber ring is respectively sleeved on the outside of both ends of the high wear-resistant ceramic lining.

[0009] By adopting the above technical solution, efficient sealing is ensured at both ends of the tube seat.

[0010] Furthermore, both ends of the tube seat are integrally connected with a flange.

[0011] By adopting the above technical solution, it is ensured that the flow meter can be installed conveniently.

[0012] Furthermore, an iron core is provided at symmetrical positions on the inner wall of the tube seat, and a coil is wound around the outside of the iron core.

[0013] By adopting the above technical solution, the magnetic field can be generated by utilizing the mutual cooperation of the coil and the iron core.

[0014] Furthermore, a connecting rod is fixedly connected to the middle position of the side surface of the tube seat, and a data processing unit is installed on the upper end of the connecting rod.

[0015] By adopting the above technical solution, circuit amplification analysis can be performed.

[0016] Furthermore, the two iron cores and the two electrodes are located on the same cross-sectional plane of the tube base, and the two iron cores and the two electrodes are alternately distributed.

[0017] By adopting the above technical solution, it is ensured that the entire electromagnetic flowmeter can work effectively.

[0018] In summary, the beneficial technical effects of the present invention are:

[0019] When the utility model measures the conductive fluid, the conductive fluid passes through the interior of the high-wear-resistant ceramic lining. Since the electrode and the mounting seat can be combined into a hemispherical structure, the electrode's obstruction rate to the conductive fluid can be effectively reduced, thereby effectively reducing the degree of electrode wear, and effectively improving the long-term measurement accuracy of the flow meter. Moreover, since the outside of the high-wear-resistant ceramic lining is wrapped with silencer cotton, and the silencer cotton is filled in the entire internal cavity of the pipe seat, the noise generated by the conductive fluid passing through the high-wear-resistant ceramic lining can be effectively eliminated, which can effectively improve the quietness of the electromagnetic flowmeter and effectively improve the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is the internal structure diagram of the utility model.

[0022] In the figure: 1. Pipe socket; 2. Flange; 3. Data processing unit; 4. Connecting rod; 5. Iron core; 6. Coil; 7. Silence cotton; 8. High wear-resistant ceramic lining; 9. Sealing rubber ring; 10. Mounting seat; 11. Electrode. DETAILED DESCRIPTION

[0023] The method of the utility model is further described in detail below with reference to the accompanying drawings.

[0024] Reference Figure 1 、 Figure 2A high-precision, low-noise electromagnetic flowmeter comprises a pipe seat 1, a high-wear-resistant ceramic lining 8 is installed inside the pipe seat 1, a cavity is provided between the high-wear-resistant ceramic lining 8 and the inner wall of the pipe seat 1, and the interior of the cavity is filled with silencer cotton 7, the silencer cotton 7 is wrapped around the outside of the high-wear-resistant ceramic lining 8, a mounting seat 10 is provided at symmetrical positions on the inner wall of the high-wear-resistant ceramic lining 8, a mounting hole is provided at the middle position of the mounting seat 10, and an electrode 11 is installed with a snap fit inside the mounting hole, one end of the electrode 11 is combined with the mounting seat 10 to form a hemispherical structure, wherein when measuring the conductive fluid, the conductive fluid is made to The electric fluid passes through the interior of the high-wear-resistant ceramic lining 8. Since the electrode 11 and the mounting seat 10 can be combined into a hemispherical structure, the electrode 11 can effectively reduce the resistance rate of the conductive fluid, thereby effectively reducing the degree of wear of the electrode 11, and effectively improving the long-term measurement accuracy of the flow meter. Moreover, since the outside of the high-wear-resistant ceramic lining 8 is wrapped with silencer cotton 7, and the silencer cotton 7 is filled in the entire internal cavity of the tube seat 1, the noise generated by the conductive fluid passing through the high-wear-resistant ceramic lining 8 can be effectively eliminated, which can effectively improve the quietness of the electromagnetic flowmeter and effectively improve the overall practicality.

[0025] Reference Figure 2 A sealing rubber ring 9 is respectively sleeved on the outside of both ends of the high-wear-resistant ceramic lining 8, and a flange 2 is integrally connected to both ends of the pipe seat 1. A connecting rod 4 is fixedly connected to the middle position of the side surface of the pipe seat 1, and a data processing unit 3 is installed on the upper end of the connecting rod 4. The flow meter can be conveniently installed through the flange 2, and the data processing unit 3 can be used to receive the current transmitted by the electrode 11, and amplify and analyze the calculation to finally obtain the flow data.

[0026] Reference Figure 2 An iron core 5 is provided at a symmetrical position on the inner wall of the tube seat 1, and a coil 6 is wound around the outside of the iron core 5. The two iron cores 5 and the two electrodes 11 are all located on the same cross-sectional plane of the tube seat 1, and the two iron cores 5 and the two electrodes 11 are alternately distributed. The cooperation of the coil 6 and the iron core 5 can be used to generate a magnetic field. When the conductive fluid passes between the two magnetic poles, the magnetic field will cause the charge inside the conductive fluid to shift, thereby causing a potential difference between the two electrodes 11, and then generating current, ensuring that the electromagnetic flowmeter can effectively detect the fluid flow.

[0027] Working principle: When in use, the electromagnetic flowmeter is installed at the specified position through the flange 2. At this time, effective detection operations can be performed. When measuring the conductive fluid, the conductive fluid is allowed to pass through the high-wear-resistant ceramic lining 8, and then the two coils 6 are energized. The magnetic field is generated by the cooperation of the coils 6 and the iron core 5. When the conductive fluid passes between the two magnetic poles, the magnetic field will cause the charge inside the conductive fluid to shift, thereby causing a potential difference between the two electrodes 11, and then generating current. The current is transmitted to the inside of the data processing unit 3, and the data processing unit 3 receives the current transmitted by the electrode 11 and performs Amplification and analysis calculation are performed to finally obtain the flow data. During the entire detection process, since the electrode 11 and the mounting seat 10 can be combined into a hemispherical structure, the barrier rate of the electrode 11 to the conductive fluid can be effectively reduced, thereby effectively reducing the degree of wear of the electrode 11, and effectively improving the long-term measurement accuracy of the flow meter. Moreover, since the outside of the high-wear-resistant ceramic lining 8 is wrapped with silencer cotton 7, and the silencer cotton 7 is filled in the entire internal cavity of the pipe seat 1, the noise generated by the conductive fluid passing through the high-wear-resistant ceramic lining 8 can be effectively eliminated, which can effectively improve the quietness of the electromagnetic flowmeter.

[0028] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A high-precision, low-noise electromagnetic flowmeter, comprising a pipe seat (1), characterized in that: A high-wear-resistant ceramic lining (8) is installed inside the tube seat (1), a cavity is provided between the high-wear-resistant ceramic lining (8) and the inner wall of the tube seat (1), and the interior of the cavity is filled with silencer cotton (7), and the silencer cotton (7) is wrapped around the outside of the high-wear-resistant ceramic lining (8), and a mounting seat (10) is provided at symmetrical positions on the inner wall of the high-wear-resistant ceramic lining (8), a mounting hole is provided at the middle position of the mounting seat (10), and an electrode (11) is mounted inside the mounting hole by a snap-fit, and one end of the electrode (11) is combined with the mounting seat (10) to form a hemispherical structure.

2. A high-precision, low-noise electromagnetic flowmeter according to claim 1, characterized in that: A sealing rubber ring (9) is sleeved on the outside of each of the two ends of the high wear-resistant ceramic lining (8).

3. A high-precision, low-noise electromagnetic flowmeter according to claim 1, characterized in that: Both ends of the pipe seat (1) are integrally connected with a flange (2).

4. The high-precision, low-noise electromagnetic flowmeter according to claim 1, characterized in that: An iron core (5) is provided at symmetrical positions on the inner wall of the tube seat (1), and a coil (6) is wound around the outside of the iron core (5).

5. The high-precision, low-noise electromagnetic flowmeter according to claim 1, characterized in that: A connecting rod (4) is fixedly connected to the middle position of the side surface of the tube seat (1), and a data processing unit (3) is installed on the upper end of the connecting rod (4).

6. A high-precision, low-noise electromagnetic flowmeter according to claim 4, characterized in that: The two iron cores (5) and the two electrodes (11) are all located on the same cross-sectional plane of the tube base (1), and the two iron cores (5) and the two electrodes (11) are alternately distributed.

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