Electromagnetic water meter flow guide pipe section and electromagnetic water meter

Abstract

The utility model relates to the technical field of electromagnetic water meters, and discloses an electromagnetic water meter diversion pipe section and an electromagnetic water meter, the electromagnetic water meter diversion pipe section comprises a pipe section, a first flange, a second flange and an inner side plate, a water inlet of the first flange is communicated with a first end of the pipe section, a water outlet of the second flange is communicated with a second end of the pipe section, and the inner side plate is arranged along the flowing direction of water in the pipe section. The area of the cross section of the water inlet is gradually reduced, the area of the cross section of the water outlet is gradually increased, and the structure of the pipeline is a pipeline design which firstly shrinks and then gradually expands and is similar to a Venturi tube; wear-resistant rings are arranged at the joints of the water inlet and the pipe section and the joints of the water outlet and the pipe section respectively; the anti-abrasion ring comprises a clamping groove end arranged at the first end in a sleeving mode and an inclined supporting end extending to the inner side of the water inlet, loss of fluid to the pipeline is reduced, the flow speed of fluid media with the low flow speed is remarkably increased, pressure loss is reduced, and therefore the flow guiding performance of the fluid media is improved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic water meter technology, and more specifically, to an electromagnetic water meter guide pipe section and an electromagnetic water meter. Background Technology

[0002] Electromagnetic water meters are based on Faraday's law of electromagnetic induction. A sensor converts the water flow rate into an electrical signal, which is then processed and calculated by a converter to display the instantaneous and cumulative flow rates on an LCD screen. With no obstructions inside the pipe, they offer high accuracy and a long service life, making them highly advantageous in industries such as tap water supply. However, commonly used electromagnetic water meters have straight-inlet and outlet designs, which can lead to significant pressure losses for low-velocity fluids. Furthermore, the lack of a smooth transition when water enters the guide pipe causes turbulence, affecting the metering accuracy.

[0003] In view of this, the present invention provides an electromagnetic water meter guide pipe section and an electromagnetic water meter. Utility Model Content

[0004] In order to overcome the problems in the prior art, this utility model proposes an electromagnetic water meter guide pipe section and an electromagnetic water meter, which can reduce the pressure loss of the fluid medium, increase the fluid medium's conductivity, and ensure the metering performance of the electromagnetic water meter.

[0005] According to one aspect of the present invention, an electromagnetic water meter guide pipe section is provided, comprising a pipe section, a first flange, and a first flange:

[0006] The pipe section has a first end and a second end;

[0007] The first flange is provided with a water inlet, which is connected to the first end of the pipe section. Along the flow direction of water in the pipe section, the cross-sectional area of ​​the water inlet gradually decreases. An anti-wear ring is provided at the connection between the water inlet and the first end.

[0008] The second flange is provided with a water outlet, which is connected to the second end of the pipe section. Along the flow direction of water in the pipe section, the cross-sectional area of ​​the water outlet gradually increases. An anti-wear ring is provided at the connection between the water outlet and the second end.

[0009] The anti-wear ring includes a groove end fitted on the first end and a diagonal support end extending to the inner side of the inlet. The side of the inlet away from the first end of the pipe section and the side of the outlet away from the second end of the pipe section are both provided with rounded corners. The two ends of the pipe section are smoothly connected to the first flange and the second flange through the anti-wear ring. A smooth insulating liner is placed on the inner wall of the pipe section, the first flange and the second flange.

[0010] As a preferred embodiment of this utility model, the angle between the wall of the inlet and the wall of the outlet and the axial direction of the pipe section is in the range of 30° to 65°.

[0011] As a preferred technical solution of this utility model, the first flange, the second flange and the pipe section are integrally formed.

[0012] As a preferred technical solution of this utility model, the smooth insulating liner includes a straight section, an extended end disposed at both ends of the straight section, and a positioning section for fixing the extended end to the outside of the flange. The positioning section is sealed to the outside of the flange, and the length of the extended end is adapted to the length of the inlet and outlet.

[0013] As a preferred embodiment of this utility model, the smooth insulating liner is made of rubber and is disposed on the inner circumferential wall of the pipe section, the first flange and the second flange.

[0014] As a preferred embodiment of this utility model, the guide pipe further includes a positioning screw and multiple electromagnetic components. The positioning screw is disposed on the outer peripheral wall of the pipe section, and the electromagnetic components are installed on the positioning screw. The multiple electromagnetic components are symmetrically arranged along the axial direction of the pipe section.

[0015] As a preferred technical solution of this utility model, it also includes a shielding component, which includes an inner side plate and a shielding ring plate. The inner side plate and the shielding ring plate are both sleeved on the outer peripheral wall of the pipe section, and the inner side plate and the shielding ring plate are integrally formed with the pipe section.

[0016] As a preferred embodiment of the present invention, the guide tube further includes a plurality of electrode holes, which are spaced apart along the circumferential direction of the tube segment, and the countersunk electrode holes are used to install electrodes.

[0017] According to another aspect of the present invention, an electromagnetic water meter is provided, comprising the above-described electromagnetic water meter guide pipe section.

[0018] The technical effects and advantages of this utility model regarding the electromagnetic water meter guide pipe section and the electromagnetic water meter are as follows:

[0019] This invention, through its unique Venturi tube structure, anti-wear ring protection, smooth insulating liner, integrated flange connection, and symmetrical layout of electromagnetic components, effectively improves the conductivity of fluid media, reduces energy consumption, extends equipment service life, enhances structural strength, improves the accuracy of electromagnetic measurement, and reduces static magnetic field interference, providing an efficient, durable, and reliable fluid measurement solution. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the flow guide tube in an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of the guide tube in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the anti-wear ring in an embodiment of this utility model.

[0023] Figure label:

[0024] 1. Pipe section;

[0025] 2. First flange; 21. Inlet;

[0026] 3. Second flange; 31. Water outlet;

[0027] 4. Shielding assembly; 41. Inner side plate; 42. Shielding ring plate;

[0028] 5. Smooth insulating lining;

[0029] 6. Positioning screw;

[0030] 7. Electrode holes;

[0031] 8. Anti-wear ring; 81. Slot end; 82. Diagonal brace end. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0033] Example 1

[0034] Please see Figure 1-2 As shown in the figure, the electromagnetic water meter guide pipe section described in this embodiment includes a pipe section 1, a first flange 2, and a second flange 3; wherein,

[0035] Pipe section 1 has a first end and a second end;

[0036] The first flange 2 is provided with a water inlet 21, which is connected to the first end of the pipe section 1. Along the water flow direction within the pipe section 1, the cross-sectional area of ​​the water inlet 21 gradually decreases. An anti-wear ring 8 is provided at the connection between the water inlet 21 and the first end. The anti-wear ring 8 includes a groove end 81 fitted onto the first end and a diagonal support end 82 extending to the inner side of the water inlet 21. Figure 3As shown, the function of anti-wear rings is to protect pipe connections from wear, especially when the fluid medium has a high flow rate or contains solid particles. Anti-wear rings can extend the service life of the pipeline system.

[0037] The second flange 3 is provided with a water outlet 31, which is connected to the second end of the pipe section 1. Along the flow direction of water in the pipe section 1, the cross-sectional area of ​​the water outlet 31 gradually increases. An anti-wear ring 8 is provided at the connection between the water outlet 31 and the second end, and the fixing method is the same as above. The anti-wear ring 8 includes a groove end 81 fitted on the second end and a diagonal support end 82 extending to the inside of the water outlet 31.

[0038] Both the inlet 21 and the outlet 31, located away from the first end of pipe section 1, have rounded corners to ensure smooth flow of fluid and prevent pressure loss. The two ends of pipe section 1 are smoothly connected to the first flange 2 and the second flange 3 via anti-wear rings 8. Smooth insulating linings 5 ​​are placed on the inner walls of pipe section 1, the first flange 2, and the second flange 3 to reduce wear on the linings when connected to the guide pipe section. The use of rounded corners and smooth inner walls optimizes the piping and reduces pressure loss during fluid flow, which is crucial for maintaining system efficiency and reducing energy consumption.

[0039] The smooth insulating liner 5 is formed from rubber material in one mold and is disposed on the inner circumferential wall of the pipe section 1. Specifically, liquid rubber is pressed onto the inner wall of the pipe section 1 through a mold. Rubber has insulating and smooth properties, which makes the inner wall of the pipe section 1 form a smooth insulating liner 5 with a smooth surface, simple manufacturing, corrosion resistance, and less scaling, and also extends the service life of the electromagnetic water meter.

[0040] Specifically, pipe section 1 is made of metal. The first end and the second end of pipe section 1 are connected to the first flange 2 and the second flange 3, respectively. The fluid medium enters from the inlet 21 of the first flange 2, flows through pipe section 1 and exits from the outlet 31 of the second flange 3. The fluid medium is water. Along the flow direction of water in pipe section 1, the cross-sectional area of ​​the inlet 21 gradually decreases and the cross-sectional area of ​​the outlet 31 gradually increases, so that the first flange 2, pipe section 1 and second flange 3 form a venturi tube. The structure of the pipe is to first contract and then gradually expand, similar to the design of a venturi tube. For low-velocity fluid media, the flow velocity is significantly increased and the pressure loss is reduced, thereby increasing the conductivity of the fluid medium.

[0041] Furthermore, continue to refer to Figure 1The angle between the wall of the inlet 21 and the wall of the outlet 31 and the axis of the pipe section 1 ranges from 30° to 65°. Preferably, the angle between the wall of the inlet 21 and the axis of the pipe section 1 is equal to the angle between the wall of the outlet 31 and the axis of the pipe section 1, which can adjust the flow field of the fluid medium while reducing pressure loss.

[0042] Furthermore, continue to refer to Figure 1 Both the inlet 21 and the outlet 31 are provided with rounded corners on the side away from the first end of the pipe section 1, so that the fluid medium can enter and exit smoothly and avoid increasing the pressure loss of the fluid medium.

[0043] Furthermore, continue to refer to Figure 1 The first flange 2, the second flange 3 and the pipe section 1 are integrally formed. Specifically, the first flange 2 and the second flange 3 are welded to the first and second ends of the pipe section 1 by welding. The structure has high strength and the first flange 2 and the second flange 3 are not easy to separate from the pipe section 1.

[0044] Furthermore, continue to refer to Figure 1 The guide pipe also includes positioning screws 6 and multiple electromagnetic components. Positioning screws 6 are disposed on the outer peripheral wall of pipe section 1, and electromagnetic components are mounted on positioning screws 6. Multiple electromagnetic components are symmetrically arranged along the axial direction of pipe section 1. Specifically, there are multiple positioning screws 6, symmetrically arranged along the axial direction of pipe section 1. Each electromagnetic component includes pole shoes and coils. Poles are mounted on the positioning screws 6, and coils are mounted around the magnetic yoke. The coils are symmetrically installed along the axial direction of pipe section 1, and a magnetic yoke is mounted outside the coils. Two magnetic yoke plates are symmetrically fixed vertically.

[0045] Furthermore, continue to refer to Figure 1 The guide pipe also includes a shielding assembly 4, which includes a protective ring plate 41 and a shielding ring plate 42. Both the protective ring plate 41 and the shielding ring plate 42 are fitted onto the outer peripheral wall of the pipe section 1 and are integrally formed with the pipe section 1. Specifically, the shielding ring plate 42 is connected to the pipe section 1 by welding to prevent interference from the static magnetic field. The protective ring plate 41 is integrally formed with the pipe section 1 by welding. The pipe section 1 is provided with a lead pipe with a neck flange, which is used to connect to the converter of the electromagnetic water meter.

[0046] Furthermore, continue to refer to Figure 1 The guide tube also includes multiple electrode holes 7, which are spaced apart along the circumference of the pipe segment 1. The electrode holes 7 are used to install electrodes. Specifically, four electrode holes are provided on the pipe segment 1, which are evenly distributed on the outer peripheral wall of the pipe segment 1 for installing electrodes.

[0047] Example 2

[0048] The parts not detailed in this embodiment are shown in Embodiment 1. This embodiment also provides an electromagnetic water meter, including the aforementioned flow guide pipe section. This electromagnetic water meter flow guide pipe effectively solves the problems of easy scaling and corrosion of the lining, extends the service life of the electromagnetic water meter, and ensures the grounding performance of the electromagnetic water meter. Simultaneously, the venturi-like pipe design reduces the pressure loss of the fluid medium and adjusts the flow field.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0050] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electromagnetic water meter flow conduit section, characterized by, The pipe section (1), the first flange (2) and the second flange (3) are provided. The pipe section (1) has a first end and a second end. The first flange (2) is provided with a water inlet (21), and the water inlet (21) of the first flange (2) is communicated with the first end of the pipe section (1). Along the flow direction of water in the pipe section (1), the cross-sectional area of the water inlet (21) gradually decreases. An anti-abrasion ring (8) is arranged at the connection between the water inlet (21) and the first end. The second flange (3) is provided with a water outlet (31), and the water outlet (31) of the second flange (3) is communicated with the second end of the pipe section (1). Along the flow direction of water in the pipe section (1), the cross-sectional area of the water outlet (31) gradually increases. An anti-abrasion ring (8) is arranged at the connection between the water outlet (31) and the second end. The anti-abrasion ring (8) includes a clamping groove end (81) sleeved on the first end and an inclined strut end (82) extending into the water inlet. The side of the water inlet away from the first end of the pipe section (1) and the side of the water outlet (31) away from the second end of the pipe section (1) are both provided with a rounded corner. The two ends of the pipe section (1) are smoothly connected to the first flange and the second flange through the anti-abrasion ring (8). A smooth insulating lining (5) is arranged on the inner walls of the pipe section (1), the first flange (2) and the second flange (3).

2. An electromagnetic water meter flow tube section according to claim 1, wherein, The included angle between the hole wall of the water inlet (21), the hole wall of the water outlet (31) and the axis direction of the pipe section (1) ranges from 30° to 65°.

3. An electromagnetic water meter flow tube section according to claim 1, wherein, The first flange (2), the second flange (3) and the pipe section (1) are integrally formed.

4. An electromagnetic water meter flow tube section according to claim 1, wherein, The smooth insulating lining (5) includes a straight section (51), outer expansion ends (52) arranged at both ends of the straight section (51), and positioning sections (53) for fixing the outer expansion ends (52) to the outer side of the flange. The positioning sections (53) are sealingly connected to the outer side of the flange. The length of the outer expansion ends (52) is adapted to the length of the water inlet and the water outlet (31).

5. An electromagnetic water meter flow tube section according to claim 1 wherein, The smooth insulating lining (5) is made of rubber material and is arranged on the inner peripheral walls of the pipe section (1), the first flange (2) and the second flange (3).

6. An electromagnetic water meter flow tube section according to claim 1 wherein, The flow guide pipe further includes a positioning screw (6) arranged on the outer peripheral wall of the pipe section (1) and a plurality of electromagnetic assemblies installed on the positioning screw (6). The plurality of electromagnetic assemblies are symmetrically arranged along the axis direction of the pipe section (1).

7. An electromagnetic water meter flow tube section according to claim 1 wherein, The flow guide pipe further includes a shielding assembly (4) including an inner side plate (41) and a shielding ring plate (42). The inner side plate (41) and the shielding ring plate (42) are both sleeved on the outer peripheral wall of the pipe section (1) and are integrally formed with the pipe section (1).

8. An electromagnetic water meter flow tube section according to claim 1 wherein, The flow guide pipe further includes a plurality of electrode holes (7) arranged at intervals along the circumferential direction of the pipe section (1). The electrode holes (7) are used for installing electrodes.

9. An electromagnetic water meter characterized by: The flow guide pipe of the electromagnetic water meter includes the pipe section, the first flange and the second flange according to any one of claims 1-8.

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