Electromagnetic flowmeter

Abstract

The utility model discloses an electromagnetic flowmeter, belongs to the technical field of electromagnetic flowmeters, solves the problem of poor sealing performance of a test pipeline and a converter assembly, and comprises a test pipeline, the outer surface of the test pipeline is fixedly connected with a shielding assembly, and the upper surface of the test pipeline is provided with a sealing mechanism. And the sealing mechanism comprises a conversion device arranged on the upper surface of the test pipeline. According to the application, the sealing rubber pad is clamped into the sealing groove formed in the upper surface of the test pipeline, and then the conversion device is mounted on the upper surface of the test pipeline through the bolt, so that the conversion device and the test pipeline can pressurize the sealing rubber pad, and the sealing rubber pad deforms; the outer surface of the sealing rubber pad is fully attached to the outer surfaces of the conversion device and the test pipeline, so that the sealing degree between the test pipeline and the conversion device is conveniently increased, and the situation of liquid leakage at the joint of the conversion device and the test pipeline is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, and particularly relates to an electromagnetic flowmeter. Background Art

[0002] As a commonly used flow measurement instrument, electromagnetic flowmeters are widely used in various fields. Whether in industrial fields such as petrochemical, water treatment, food and beverage, and pharmaceuticals, or in municipal engineering such as urban water supply and sewage treatment, electromagnetic flowmeters play a key role. Existing electromagnetic flowmeters usually consist of a test pipeline and a converter assembly, etc. These two key components are generally connected by a flange, and most electromagnetic flowmeters use traditional flat gaskets to achieve the sealing between the test pipeline and the converter assembly.

[0003] During the installation process, if the installation surface of the flange is uneven or the tightening force of the bolts is uneven, it will cause uneven local pressure on the gasket, thus affecting the sealing performance. In addition, during long-term use, the gasket may gradually age and deform due to factors such as fluid pressure, temperature change, and chemical corrosion, resulting in a gradual decline in the sealing performance. Therefore, there is a problem of poor sealing between the test pipeline and the converter assembly. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the above problems existing in the prior art, the utility model provides an electromagnetic flowmeter.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model is realized through the following technical solutions: An electromagnetic flowmeter includes a test pipeline. An occlusion assembly is fixedly connected to the outer surface of the test pipeline, and a sealing mechanism is arranged on the upper surface of the test pipeline. The sealing mechanism includes a conversion device arranged on the upper surface of the test pipeline, and a sealing rubber pad is attached to the lower surface of the conversion device. The occlusion assembly includes external threaded pipes fixedly connected to both ends of the test pipeline, a moving plate is slidably connected to the outer surface of the external threaded pipe, and a rubber sleeve is fixedly connected to the outer surface of the moving plate.

[0008] As a preferred solution of the electromagnetic flowmeter of the utility model, a plurality of groups of bolts are threadedly connected to the outer surface of the sealing rubber pad, and the bolts are threadedly connected to the outer surface of the test pipeline.

[0009] By adopting the above technical solution, by rotating the bolts, it is convenient to fix the sealing rubber pad on the upper surface of the test pipeline, and thus it is convenient to clamp the outer surface of the sealing rubber pad.

[0010] As a preferred solution of an electromagnetic flowmeter according to the present utility model, wherein, the cross-section of the sealing rubber pad adopts a cross-shaped structure, and the outer surface of the sealing rubber pad fits with the outer surface of the conversion device.

[0011] By adopting the above technical solution, it is convenient to seal between the conversion device and the test pipeline through the sealing rubber pad.

[0012] As a preferred solution of an electromagnetic flowmeter according to the present utility model, wherein, sealing grooves are provided on the upper surface of the test pipeline and the lower surface of the conversion device, and the outer surface of the sealing groove is clamped with the outer surface of the sealing rubber pad.

[0013] By adopting the above technical solution, by clamping the sealing rubber pad into the outer surface of the sealing groove, it is convenient to strengthen the sealing between the conversion device and the test pipeline.

[0014] As a preferred solution of an electromagnetic flowmeter according to the present utility model, wherein, the inner side surface of the rubber sleeve is slidably connected with the outer surface of the flange plates at both ends of the test pipeline.

[0015] By adopting the above technical solution, by sliding the rubber sleeve at both ends of the test pipeline, it is convenient to protect the joints at both ends of the test pipeline.

[0016] As a preferred solution of an electromagnetic flowmeter according to the present utility model, wherein, an external thread pipe is threadedly connected with an internal thread pipe on its outer surface, and the outer surface of the internal thread pipe is fixedly connected with the outer surface of the moving plate.

[0017] By adopting the above technical solution, by rotating the internal thread pipe, the internal thread pipe can move along the outer surface of the external thread pipe.

[0018] (III) Beneficial effects

[0019] The present utility model provides an electromagnetic flowmeter. It has the following beneficial effects:

[0020] 1. By clamping the sealing rubber pad into the sealing groove provided on the upper surface of the test pipeline, and then installing the conversion device on the upper surface of the test pipeline through bolts, so that the conversion device and the test pipeline can pressurize the sealing rubber pad, causing the sealing rubber pad to deform, and further making the outer surface of the sealing rubber pad fully fit with the outer surfaces of the conversion device and the test pipeline, thereby facilitating to increase the sealing degree between the test pipeline and the conversion device and preventing liquid leakage at the connection between the conversion device and the test pipeline.

[0021] 2. After connecting both ends of the test pipeline to the pipeline through flanges, rotate the internally threaded pipe, so that the internally threaded pipe drives the moving plate and the rubber sleeve to move towards the outer surface of the pipeline, thereby enabling the rubber sleeve to block the connection part of the flange and reducing the occurrence of rust on the bolts of the flange. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is the overall structural schematic diagram of the present invention;

[0024] Figure 2 is the overall exploded structural schematic diagram of the present invention;

[0025] Figure 3 is the side view sectional structural schematic diagram of the sealing rubber pad in the present invention;

[0026] Figure 4 is the structural schematic diagram of the rubber sleeve blocking the flange connection disc in the present invention.

[0027] In the figure, 1, test pipeline; 2, shielding assembly; 201, externally threaded pipe; 202, moving plate; 203, rubber sleeve; 204, internally threaded pipe; 3, sealing mechanism; 301, sealing rubber pad; 302, sealing groove; 303, conversion device. Detailed Embodiment

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention.

[0029] Embodiment 1

[0030] Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , this is the first embodiment of the present invention. This embodiment provides an electromagnetic flowmeter, including a test pipeline 1. A shielding assembly 2 is fixedly connected to the outer surface of the test pipeline 1, and a sealing mechanism 3 is arranged on the upper surface of the test pipeline 1. The sealing mechanism 3 includes a conversion device 303 arranged on the upper surface of the test pipeline 1, and a sealing rubber pad 301 is attached to the lower surface of the conversion device 303.

[0031] Specifically, multiple groups of bolts are threadedly connected to the outer surface of the sealing rubber pad 301, and the bolts are threadedly connected to the outer surface of the test pipe 1. The cross-section of the sealing rubber pad 301 adopts a cross-shaped structure. The outer surface of the sealing rubber pad 301 is attached to the outer surface of the conversion device 303. Sealing grooves 302 are provided on the upper surface of the test pipe 1 and the lower surface of the conversion device 303, and the outer surface of the sealing groove 302 is snap-connected to the outer surface of the sealing rubber pad 301.

[0032] Further, the sealing rubber pad 301 is snapped into the sealing groove 302 provided on the upper surface of the test pipe 1, and then the conversion device 303 is installed on the upper surface of the test pipe 1 through bolts. Thus, the conversion device 303 and the test pipe 1 can apply pressure to the sealing rubber pad 301, causing the sealing rubber pad 301 to deform. As a result, the outer surface of the sealing rubber pad 301 fully adheres to the outer surfaces of the conversion device 303 and the test pipe 1, which is convenient for increasing the sealing degree between the test pipe 1 and the conversion device 303 and preventing liquid leakage at the connection between the conversion device 303 and the test pipe 1.

[0033] Embodiment 2

[0034] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 This is the second embodiment of the present utility model. Based on the previous embodiment, the shielding assembly 2 includes external threaded pipes 201 fixedly connected to both ends of the test pipe 1. A moving plate 202 is slidably connected to the outer surface of the external threaded pipe 201, and a rubber sleeve 203 is fixedly connected to the outer surface of the moving plate 202.

[0035] Specifically, the inner side surface of the rubber sleeve 203 is slidably connected to the outer surface of the flange plates at both ends of the test pipe 1. An internal threaded pipe 204 is threadedly connected to the outer surface of the external threaded pipe 201, and the outer surface of the internal threaded pipe 204 is fixedly connected to the outer surface of the moving plate 202.

[0036] After further connecting both ends of the test pipe 1 to the pipeline through flanges, the internal threaded pipe 204 is rotated, causing the internal threaded pipe 204 to drive the moving plate 202 and the rubber sleeve 203 to move towards the outer surface of the pipeline. As a result, the rubber sleeve 203 can shield the connection of the flange, reducing the occurrence of rust on the bolts of the flange.

[0037] Working principle: The sealing rubber gasket 301 is clamped into the sealing groove 302 opened on the upper surface of the test pipeline 1, and then the conversion device 303 is installed on the upper surface of the test pipeline 1 through bolts. Thus, the conversion device 303 and the test pipeline 1 can apply pressure to the sealing rubber gasket 301, causing the sealing rubber gasket 301 to deform. As a result, the outer surface of the sealing rubber gasket 301 fully adheres to the outer surfaces of the conversion device 303 and the test pipeline 1, which is convenient for increasing the sealing degree between the test pipeline 1 and the conversion device 303 and preventing liquid leakage at the connection between the conversion device 303 and the test pipeline 1. After connecting the two ends of the test pipeline 1 to the pipeline through flanges, the internal threaded pipe 204 is rotated, causing the internal threaded pipe 204 to drive the moving plate 202 and the rubber sleeve 203 to move towards the outer surface of the pipeline. Thus, the rubber sleeve 203 can cover the connection of the flange, reducing the occurrence of rust on the bolts of the flange.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. An electromagnetic flowmeter, comprising a test pipeline (1), characterized in that: The outer surface of the test pipeline (1) is fixedly connected with a shielding component (2), and a sealing mechanism (3) is arranged on the upper surface of the test pipeline (1); The sealing mechanism (3) includes a conversion device (303) arranged on the upper surface of the test pipeline (1), and a sealing rubber pad (301) is attached to the lower surface of the conversion device (303); The shielding component (2) includes external thread pipes (201) fixedly connected to both ends of the test pipeline (1), a moving plate (202) is slidably connected to the outer surface of the external thread pipes (201), and a rubber sleeve (203) is fixedly connected to the outer surface of the moving plate (202).

2. An electromagnetic flowmeter according to claim 1, characterized in that: Multiple groups of bolts are threadedly connected to the outer surface of the sealing rubber pad (301), and the bolts are threadedly connected to the outer surface of the test pipeline (1).

3. An electromagnetic flowmeter according to claim 2, characterized in that: The cross-section of the sealing rubber pad (301) adopts a cross-shaped structure, and the outer surface of the sealing rubber pad (301) is attached to the outer surface of the conversion device (303).

4. An electromagnetic flowmeter according to claim 3, characterized in that: Sealing grooves (302) are formed on both the upper surface of the test pipeline (1) and the lower surface of the conversion device (303), and the outer surface of the sealing grooves (302) is clamped with the outer surface of the sealing rubber pad (301).

5. An electromagnetic flowmeter according to claim 4, characterized in that: The inner side surface of the rubber sleeve (203) is slidably connected to the outer surface of the flange plates at both ends of the test pipeline (1).

6. An electromagnetic flowmeter according to claim 1, characterized in that: An internal thread pipe (204) is threadedly connected to the outer surface of the external thread pipe (201), and the outer surface of the internal thread pipe (204) is fixedly connected to the outer surface of the moving plate (202).

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