Corrosion-resistant lined replaceable electromagnetic flowmeter

Abstract

This utility model discloses a corrosion-resistant, replaceable-lined electromagnetic flowmeter, including a flow guide pipe and a connecting assembly. The connecting assembly includes a first liner and a second liner, with a disassembly assembly between the two liners. The disassembly assembly includes a connecting ring fixedly connected to one end of the first liner, with several positioning blocks and guide strips on its outer wall. A connecting ring is fixedly connected to one end of the second liner, with several guide strips and positioning blocks on its outer wall. This utility model, through the disassembly assembly on the connecting assembly, allows for quick disassembly and replacement when the liner is worn or damaged due to prolonged contact with corrosive media, eliminating the need to replace the entire electromagnetic flowmeter. This significantly reduces maintenance costs and replacement difficulty. The rotating assembly allows operators to easily rotate the liner using a handle to adjust its position or perform replacement operations, greatly improving ease of use and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of automated measurement technology, specifically to an electromagnetic flowmeter with a replaceable corrosion-resistant lining. Background Technology

[0002] Electromagnetic flow meters are flow measurement instruments that operate based on Faraday's law of electromagnetic induction. They calculate flow velocity and flow rate by detecting the induced electromotive force generated when fluid flows in a magnetic field. Due to their significant advantages such as high measurement accuracy, wide measuring range, ability to measure corrosive and high-viscosity media, and no pressure loss, they are widely used in various industrial fields such as chemical engineering, metallurgy, water supply and drainage, and food processing, and are an indispensable core device in industrial process control and metering.

[0003] The primary function of the sensor is to detect and convert flow-related physical quantities into electrical signals. It utilizes Faraday's principle of electromagnetic induction: when a conductive liquid flows through a magnetic field generated by an excitation coil, the liquid cuts the magnetic lines of force, generating an induced electromotive force (EMF). This EMF is proportional to the liquid's flow velocity. The sensor detects this induced EMF and outputs it as an electrical signal reflecting the flow rate, providing the basis for subsequent flow measurement and calculation.

[0004] The main function of the converter is to amplify, process, and convert the weak electrical signals output by the sensor into standard signals that can be displayed, transmitted, and controlled. The converter filters and amplifies the sensor output signal to improve its quality and stability, then converts it into standard forms such as 4-20mA current signals, 0-10V voltage signals, or digital signals. This allows for connection to display instruments, control systems, or other equipment to achieve functions such as flow display, recording, control, and remote transmission.

[0005] However, with the increasing complexity and diversity of industrial production environments, higher demands are placed on the adaptability and ease of maintenance of electromagnetic flowmeters. Traditional electromagnetic flowmeters often feature an integrated design between the liner and the sensor body. When facing highly corrosive or abrasive media, damage to the liner necessitates the complete disassembly and replacement of the sensor, resulting in high maintenance costs, significant time consumption, and potential disruption to production continuity. Therefore, there is an urgent need to design electromagnetic flowmeters with replaceable corrosion-resistant lineres to address these issues. Utility Model Content

[0006] The purpose of this invention is to provide an electromagnetic flow meter with a replaceable corrosion-resistant liner to address the aforementioned shortcomings in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A corrosion-resistant, replaceable-lined electromagnetic flowmeter includes a flow guide tube and a connecting assembly. The connecting assembly includes a first liner and a second liner. A disassembly assembly is provided between the first liner and the second liner. The disassembly assembly includes a connecting ring 1 fixedly connected to one end of the first liner. The outer wall of the connecting ring 1 is provided with several positioning blocks 1 and guide strips 1. One end of the second liner is fixedly connected to a connecting ring 2. The outer wall of the connecting ring 2 is provided with several guide strips 2 and positioning blocks 2.

[0009] Preferably, a slot 1 is provided on one side of the positioning block 1 on the first connecting ring, and a slot 2 is provided on one side of the positioning block 2 on the second connecting ring, wherein the heights of the slot 1 and the slot 2 are different.

[0010] Preferably, flanges are provided on both sides of the guide pipe, and the flanges have a plurality of slots, which are used at least for fixing the pipe connection.

[0011] Preferably, a sensor is fitted onto the outer wall of the flow guide tube, and the sensor is used for at least flow detection.

[0012] Preferably, a converter is provided on the top of the sensor, which is used at least for amplifying and outputting signals.

[0013] Preferably, the guide tube has an internal isolation layer, the outer wall of the isolation layer has a sliding strip, the inner wall of the guide tube has a sliding groove, and the isolation layer is slidably connected to the guide tube.

[0014] Preferably, one side of each of the inner linings is provided with a gasket and a gasket. One side of the gasket is provided with a groove, and a rotating assembly is provided inside the groove. The rotating assembly includes a connecting rod fixedly connected inside the groove. A rotating block is sleeved on the outer wall of the connecting rod. A handle is provided on one side of the rotating block, and the handle is connected to the connecting rod through the rotating block.

[0015] In the above technical solution, the replaceable corrosion-resistant lining electromagnetic flowmeter provided by this utility model has the following beneficial effects:

[0016] (1) By using the disassembly component on the connection component, when the lining is worn or damaged due to long-term contact with corrosive media, it can be quickly disassembled and replaced without replacing the entire electromagnetic flow meter, which greatly reduces maintenance costs and replacement difficulty.

[0017] (2) The rotating component allows operators to easily rotate the lining by pulling the handle to adjust its position or perform replacement operations, greatly improving the convenience and flexibility of use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural view of an embodiment of the corrosion-resistant replaceable lining electromagnetic flowmeter of this utility model.

[0020] Figure 2 This is a perspective view of the isolation layer structure provided for an embodiment of the corrosion-resistant replaceable lining electromagnetic flowmeter of this utility model.

[0021] Figure 3 This is a perspective view of the connecting component structure provided in an embodiment of the corrosion-resistant, replaceable-lined electromagnetic flowmeter of this utility model.

[0022] Figure 4 This is a perspective view of the disassembly assembly structure provided for an embodiment of the corrosion-resistant replaceable lining electromagnetic flowmeter of this utility model.

[0023] Figure 5 This is a partially enlarged view of the rotating component structure provided in an embodiment of the corrosion-resistant replaceable liner electromagnetic flowmeter of this utility model.

[0024] 1. Guide pipe; 2. Flange; 3. Sensor; 4. Converter; 5. Rotating assembly; 51. Connecting rod; 52. Rotating block; 53. Handle; 6. Connecting assembly; 61. Liner 1; 62. Liner 2; 63. Gasket 1; 64. Gasket 2; 7. Isolation layer; 8. Disassembly assembly; 81. Connecting ring 1; 82. Positioning block 1; 83. Guide bar 1; 84. Connecting ring 2; 85. Guide bar 2; 86. Positioning block 2. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-5 As shown in the figure, the corrosion-resistant replaceable electromagnetic flowmeter provided in this embodiment of the present invention includes a flow guide pipe 1 and a connecting component 6. The connecting component 6 includes a first liner 61 and a second liner 62. A disassembly component 8 is provided between the first liner 61 and the second liner 62. The disassembly component 8 includes a connecting ring 81 fixedly connected to one end of the first liner 61. The outer wall of the connecting ring 81 is provided with a plurality of positioning blocks 82 and guide bars 83. One end of the second liner 62 is fixedly connected to a connecting ring 84. The outer wall of the connecting ring 84 is provided with a plurality of guide bars 85 and positioning blocks 86.

[0027] In this embodiment, a flow guide pipe 1 and a connecting assembly 6 are included. The connecting assembly 6 includes a first liner 61 and a second liner 62, both made of polytetrafluoroethylene (PTFE), which is corrosion-resistant and does not easily form scale. They are arranged sequentially inside the flow guide pipe 1 along the fluid flow direction, forming a corrosion-resistant inner wall that is in direct contact with the fluid. A disassembly assembly 8 is provided between the first liner 61 and the second liner 62. The disassembly assembly 8 includes a connecting ring 81 fixedly connected to one end of the first liner 61. The outer wall of the connecting ring 81 is provided with several positioning blocks 82 and guide strips 83. A second connecting ring 84 is fixedly connected to one end of the second liner 62. The outer wall of the connecting ring 2 84 is provided with several guide strips 2 85 and positioning blocks 2 86. The guide strips 1 83 and 2 85 cooperate with each other to form a guiding structure, which facilitates the quick alignment of the inner lining 1 61 and the inner lining 2 62. The positioning blocks 1 82 and 2 86 achieve precise positioning through the height difference between the slots 1 and 2. The height difference design of the slots 1 and 2 ensures that the two can only be combined in a unique and correct way when splicing, which effectively prevents misalignment during installation. At the same time, under the action of fluid pressure, this height difference cooperation can also enhance the stability of the connection and prevent relative displacement between the inner lining 1 61 and the inner lining 2 62.

[0028] Specifically, a slot 1 is provided on one side of the positioning block 82 on the connecting ring 1 81, and a slot 2 is provided on one side of the positioning block 86 on the connecting ring 2 84. The heights of slot 1 and slot 2 are different.

[0029] Specifically, flanges 2 are provided on both sides of the guide pipe 1. The flanges 2 have several slots. The slots are used for fixing the pipe connection. The position and size of these slots match the standard pipe flange 2. The flanges 2 are connected to the pipe by passing bolts through the slots in sequence and tightening the nuts.

[0030] Specifically, a sensor 3 is fitted onto the outer wall of the guide pipe 1. The sensor 3 is used for at least flow detection. The sensor 3 uses the principle of electromagnetic induction. When the fluid flows in the guide pipe 1, it cuts the magnetic field generated by the sensor 3, thereby generating an induced electromotive force in the fluid. The sensor 3 converts the induced electromotive force into an electrical signal output.

[0031] Specifically, a converter 4 is provided on the top of the sensor 3. The converter 4 is used to amplify and process the signal and output the signal. The converter 4 integrates circuit modules such as signal amplification, filtering and calculation. It can amplify the weak electrical signal output by the sensor 3, remove noise interference in the signal, and convert the processed signal into a standard analog signal or digital signal so as to transmit it to an external display device or control system for display and analysis of flow data.

[0032] Specifically, the guide tube 1 has an isolation layer 7 inside, the outer wall of the isolation layer 7 has a sliding strip, and the inner wall of the guide tube 1 has a sliding groove. The isolation layer 7 is slidably connected to the guide tube 1. The presence of the isolation layer 7 can further enhance the corrosion resistance of the guide tube 1. On the other hand, when it is necessary to inspect or maintain the inside of the guide tube 1, the isolation layer 7 can be pulled out of the guide tube 1, which is convenient and quick.

[0033] Specifically, one side of each of the inner linings 61 and 62 is provided with a gasket 63 and a gasket 64. One side of gasket 63 has a groove, and a rotating assembly 5 is installed inside the groove. The rotating assembly 5 includes a connecting rod 51 fixedly connected inside the groove, and a rotating block 52 sleeved on the outer wall of the connecting rod 51. A handle 53 is provided on one side of the rotating block 52, and the handle 53 is connected to the connecting rod 51 via the rotating block 52. The rotating assembly 5 is installed inside the groove of gasket 63. The connecting rod 51 is vertically fixed between the two side walls of the groove, and the rotating block 52 can rotate freely around the connecting rod 51. The handle 53 is fixedly connected to one side of the rotating block 52. When the inner lining needs to be disassembled or installed, the operator pulls the handle 53, causing the rotating block 52 to rotate around the connecting rod 51, thereby rotating the inner lining and loosening or tightening the disassembly assembly 8, thus facilitating the convenient disassembly and installation of the inner lining.

[0034] Working steps: 1. Align the flanges 2 on both sides of the guide pipe 1 with the corresponding flanges of the pipe to be installed, and use bolts to pass through the slots on the flanges 2 one by one and tighten them gradually to fix them.

[0035] 2. Fit sensor 3 onto the corresponding position on the outer wall of guide tube 1, ensuring a secure installation; then install converter 4 on top of sensor 3.

[0036] 3. Slowly push the isolation layer 7 with the sliding strip along the groove on the inner wall of the guide tube 1;

[0037] Fourth, slowly push the inner liner 2 62 into the isolation layer 7, then slowly push the inner liner 1 61 into the other side of the isolation layer 7, take out the handle 53 in the rotating assembly 5, and rotate the inner liner 1 61 to lock the disassembly assembly 8.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A corrosion-proof, replaceable lining electromagnetic flowmeter comprising a flow tube (1) and a connection assembly (6), characterized in that, The connecting assembly (6) includes a first liner (61) and a second liner (62). A disassembly assembly (8) is provided between the first liner (61) and the second liner (62). The disassembly assembly (8) includes a connecting ring (81) fixedly connected to one end of the first liner (61). The outer wall of the connecting ring (81) is provided with a plurality of positioning blocks (82) and guide strips (83). One end of the second liner (62) is fixedly connected to a connecting ring (84). The outer wall of the connecting ring (84) is provided with a plurality of guide strips (85) and positioning blocks (86).

2. The corrosion resistant, replaceable liner electromagnetic flowmeter of claim 1, wherein, A slot 1 is provided on one side of the positioning block 1 (82) on the first connecting ring (81), and a slot 2 is provided on one side of the positioning block 2 (86) on the second connecting ring (84). The heights of the slot 1 and the slot 2 are different.

3. The corrosion resistant lined replaceable electromagnetic flowmeter of claim 1, wherein, Flanges (2) are provided on both sides of the guide pipe (1), and the flanges (2) have several slots, which are used at least for fixing the pipe connection.

4. The corrosion resistant lined replaceable electromagnetic flowmeter of claim 1, wherein, A sensor (3) is fitted onto the outer wall of the flow guide (1), and the sensor (3) is used for at least flow detection.

5. The corrosion resistant, replaceable liner electromagnetic flowmeter of claim 4, wherein, A converter (4) is provided on the top of the sensor (3), which is used at least to amplify and output signals.

6. The corrosion resistant lined replaceable electromagnetic flowmeter of claim 1, wherein, The guide pipe (1) is provided with an isolation layer (7) inside, the outer wall of the isolation layer (7) is provided with a sliding strip, the inner wall of the guide pipe (1) is provided with a sliding groove, and the isolation layer (7) is slidably connected to the guide pipe (1).

7. The corrosion resistant lined replaceable electromagnetic flowmeter of claim 1, wherein, One side of each of the inner lining (61) and the inner lining (62) is provided with a gasket (63) and a gasket (64). One side of the gasket (63) is provided with a groove. A rotating component (5) is provided inside the groove. The rotating component (5) includes a connecting rod (51) fixedly connected inside the groove. A rotating block (52) is sleeved on the outer wall of the connecting rod (51). A handle (53) is provided on one side of the rotating block (52). The handle (53) is connected to the connecting rod (51) through the rotating block (52).

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