Anti-protrusion device of electromagnetic flowmeter

Abstract

The utility model provides an anti-protrusion device of an electromagnetic flowmeter, which comprises an electromagnetic flowmeter main body, the surface of the electromagnetic flowmeter main body is fixedly connected with two flanges, an anti-protrusion assembly is arranged in the electromagnetic flowmeter main body, and a supporting assembly is arranged in the anti-protrusion assembly. The anti-protruding net has the advantages that the anti-protruding net is placed in the electromagnetic flowmeter body, and after the anti-protruding net is placed, the outer wall of the anti-protruding net is attached to and fixed to the surface of the lining in the electromagnetic flowmeter body; then the anti-protruding net can be fixed in the electromagnetic flow meter body through the limiting plate, the mounting plate, the locking hole, the locking bolt and the locking nut, and in the operation process of the electromagnetic flow meter, the lining can be prevented from generating bumps in the pressure difference direction when the pressure in the electromagnetic flow meter body is low through the arrangement of the anti-protruding net; therefore, the lining can be prevented from protruding and protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anti-protrusion devices of electromagnetic flowmeter, belong to flowmeter field. BACKGROUND

[0002] Electromagnetic flowmeter is a kind of flowmeter widely used in industrial process control and measurement, especially suitable for the flow measurement of conductive liquid, which works based on Faraday's law of electromagnetic induction, and determines the flow rate of fluid by measuring the electromotive force generated by fluid in magnetic field. In order to be able to adapt to work in strong corrosive environment, the inner side of the pipeline of electromagnetic flowmeter is usually provided with an inner lining of polytetrafluoroethylene (PTFE) material, which has the characteristics of electrical insulation and can directly contact the measured liquid. The main role is to increase the corrosion resistance of the measuring conduit, to prevent the induction potential from being short-circuited by the metal measuring conduit wall.

[0003] In the prior art, if the electromagnetic flowmeter with PTFE lining is stopped and its interior is emptied during use, a negative pressure effect will usually occur inside the electromagnetic flowmeter after a certain period of time, that is, the pressure inside the pipeline body is significantly lower than the outside atmospheric pressure, or even a vacuum environment is formed at the inlet end. This will cause the PTFE lining to "bulge" in the direction of the pressure difference, that is, to protrude towards the inside of the pipeline body, resulting in the inability to continue using the electromagnetic flowmeter and causing unnecessary losses. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model aims to provide an anti-protrusion device for electromagnetic flowmeter to solve the problem that the electromagnetic flowmeter with PTFE lining will produce a negative pressure effect inside the electromagnetic flowmeter after a certain period of time if it is stopped and its interior is emptied during use, that is, the pressure inside the pipeline body is significantly lower than the outside atmospheric pressure, or even a vacuum environment is formed at the inlet end. This will cause the PTFE lining to "bulge" in the direction of the pressure difference, that is, to protrude towards the inside of the pipeline body, resulting in the inability to continue using the electromagnetic flowmeter and causing unnecessary losses.

[0005] In order to achieve the above purpose, the utility model is realized by the following technical scheme: an anti-protrusion device for electromagnetic flowmeter, comprising an electromagnetic flowmeter body, two flanges are fixedly connected to the surface of the electromagnetic flowmeter body, an anti-protrusion assembly is arranged in the electromagnetic flowmeter body, a supporting assembly is arranged in the anti-protrusion assembly;

[0006] The anti-bulging assembly comprises an anti-bulging net movably connected in the electromagnetic flowmeter body, two mounting plates movably connected on one side of the anti-bulging net, a limiting plate movably connected on one side of the mounting plate, locking holes formed in the mounting plate and the limiting plate, and locking bolts movably connected in the locking holes.

[0007] Further, the support assembly comprises a plurality of mounting rods fixedly connected on one side of the mounting plate, and a plurality of buckles movably connected on the surface of the mounting rod.

[0008] Further, the flange is provided with a recessed groove, the recessed groove is annular, the diameter of the recessed groove is consistent with the diameter of the limiting plate, and the depth of the recessed groove is greater than the length of the locking bolt.

[0009] Further, the outer diameter of the anti-bulging net is consistent with the inner diameter of the electromagnetic flowmeter body, and the anti-bulging net and the support rod are made of corrosion-resistant hard metal materials.

[0010] Further, the side of the buckle close to the mounting rod is arc-shaped, and the buckle is made of elastic material.

[0011] Further, the plurality of support rods form a triangle, and the number of the mounting rods is six.

[0012] The anti-bulging net is placed in the electromagnetic flowmeter body, and after the anti-bulging net is placed, the outer wall is fixed to the surface of the inner lining in the electromagnetic flowmeter body, and then the anti-bulging net is fixed in the electromagnetic flowmeter body through the limiting plate, the mounting plate, the locking hole, the locking bolt and the locking nut.

[0013] The plurality of support rods are inserted into the insertion hole, and after the support rods are inserted into the insertion hole, the support rods form a triangle with the buckle, and then the buckle is inserted into the surface of the mounting rod during the installation of the anti-bulging net, so as to provide additional support for the anti-bulging net and avoid deformation due to the extrusion of the inner lining, so as to ensure that the anti-bulging net can always adhere to the surface of the inner lining. BRIEF DESCRIPTION OF DRAWINGS

[0014] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof as read in conjunction with the accompanying drawings:

[0015] Figure 1 It is a whole structure schematic view of the anti-protrusion device of the electromagnetic flowmeter of the present application;

[0016] Figure 2 It is a main body structure schematic view of the anti-protrusion device of the electromagnetic flowmeter of the present application;

[0017] Figure 3 It is an anti-protrusion assembly structure schematic view of the anti-protrusion device of the electromagnetic flowmeter of the present application;

[0018] Figure 4 It is a support rod structure schematic view of the anti-protrusion device of the electromagnetic flowmeter of the present application.

[0019] In the figure: 1, electromagnetic flowmeter main body; 2, flange; 3, anti-protrusion assembly; 31, anti-protrusion net; 32, mounting plate; 33, limiting plate; 34, locking hole; 35, locking bolt; 36, locking nut; 4, support assembly; 41, mounting rod; 42, buckle; 43, jack; 44, support rod; 5, accommodation groove. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0021] Please refer to Figures 1 to 4 The present application provides a technical solution: an anti-protrusion device of an electromagnetic flowmeter, which comprises an electromagnetic flowmeter main body 1, two flanges 2 are fixedly connected to the surface of the electromagnetic flowmeter main body 1, an anti-protrusion assembly 3 is arranged in the electromagnetic flowmeter main body 1, and a support assembly 4 is arranged in the anti-protrusion assembly 3.

[0022] The anti-protrusion assembly 3 comprises an anti-protrusion net 31 movably connected in the electromagnetic flowmeter main body 1, two mounting plates 32 are fixedly connected to the surface of the anti-protrusion net 31, a limiting plate 33 is movably connected to one side of the mounting plate 32, locking holes 34 are formed in the mounting plate 32 and the limiting plate 33, locking bolts 35 are movably connected in the locking holes 34, and locking nuts 36 are threadedly connected to the surface of the locking bolts 35.

[0023] The anti-bulging net 31 is placed in the electromagnetic flowmeter body 1, and after the anti-bulging net 31 is placed, the outer wall of the anti-bulging net 31 is close to the surface of the inner liner (not shown in the figure) fixed in the electromagnetic flowmeter body 1, and then the anti-bulging net 31 can be fixed in the electromagnetic flowmeter body 1 through the limiting plate 33, the mounting plate 32, the locking hole 34, the locking bolt 35 and the locking nut 36. During the operation of the electromagnetic flowmeter, the anti-bulging net 31 can prevent the inner liner from bulging in the direction of the pressure difference when the pressure in the electromagnetic flowmeter body 1 is low, thereby playing a role in preventing the bulging of the inner liner.

[0024] Preferably, the flange 2 is provided with a recess 5, the recess 5 is annular, the diameter of the recess 5 is consistent with the diameter of the limiting plate 33, and the depth of the recess 5 is greater than the length of the locking bolt 35. By providing the recess 5 on the surface of the flange 2, the locking bolt 35 will not hinder the butt joint installation of the flange 2 and the pipeline after the anti-bulging net 31 is installed in the electromagnetic flowmeter body 1, thereby ensuring the sealing between the flange 2 and the pipeline.

[0025] Please refer to Figures 1 to 4 The utility model provides a technical scheme: the support assembly 4 includes a plurality of installation rods 41 fixedly connected to one side of the mounting plate 32, a plurality of buckles 42 movably connected to the surface of the installation rod 41, two insertion holes 43 are formed in the surface of the buckle 42, and a support rod 44 is inserted into the insertion hole 43.

[0026] A plurality of support rods 44 are inserted into the insertion hole 43, and then the buckle 42 is inserted into the surface of the installation rod 41 during the installation of the anti-bulging net 31, so that additional support is provided for the anti-bulging net 31, deformation of the anti-bulging net 31 due to extrusion of the inner liner is avoided, and the anti-bulging net 31 can always adhere to the surface of the inner liner.

[0027] Further, the outer diameter of the anti-bulging net 31 is consistent with the inner diameter of the electromagnetic flowmeter body 1, and the anti-bulging net 31 and the support rod 44 are made of corrosion-resistant hard metal material. The outer diameter of the anti-bulging net 31 is consistent with the inner diameter of the electromagnetic flowmeter body 1, so that the outer wall of the anti-bulging net 31 can tightly adhere to the surface of the inner liner after being placed in the electromagnetic flowmeter body 1, thereby ensuring the effect of anti-bulging protection of the inner liner.

[0028] Further, the side of the buckle 42 close to the installation rod 41 is arc-shaped, and the buckle 42 is made of elastic material. The side of the buckle 42 close to the installation rod 41 is arc-shaped, so that the buckle 42 can tightly adhere to the surface of the support rod 44 after being inserted into the surface of the support rod 44, thereby ensuring the firmness of the installation between the buckle 42 and the support rod 44.

[0029] Further, the support rods 44 form a triangle, and the number of mounting rods 41 is six. After the support rods 44 are inserted into the insertion holes 43, the buckles 42 will form a triangle with the support rods 44. Since the triangle has stability, the support strength of the support rods 44 to the anti-bulging net 31 can be ensured. By setting the number of support rods 44 to six, the triangle formed by the buckles 42 and the support rods 44 mounted on the surface thereof can be placed in reverse, so that the support range of the support rods 44 to the anti-bulging net 31 can be increased, and the strength of the anti-bulging net 31 during use can be further improved.

[0030] Specific implementation: first, the anti-bulging net 31 is placed inside the electromagnetic flowmeter body 1. After the anti-bulging net 31 is placed, the outer wall thereof is close to the inner lining surface fixed inside the electromagnetic flowmeter body 1. Then, the limiting plate 33 is fixed to one side of the mounting plate 32 on the surface of the anti-bulging net 31, and the locking holes 34 formed on the surface of the limiting plate 33 are aligned with the locking holes 34 formed on the surface of the mounting plate 32. Then, the locking bolt 35 is inserted through the locking holes 34 formed on the surface of the limiting plate 33 and the locking holes 34 formed on the surface of the mounting plate 32 in sequence. Then, the locking nut 36 is placed on the surface of the locking bolt 35 and is screwed to move along the surface of the locking bolt 35 towards the mounting plate 32 until it is close to one side of the mounting plate 32. In this way, the anti-bulging net 31 can be installed inside the electromagnetic flowmeter body 1. During the operation of the electromagnetic flowmeter, the anti-bulging net 31 can prevent the inner lining from bulging in the direction of the pressure difference when the pressure inside the electromagnetic flowmeter body 1 is low, so as to protect the inner lining from bulging.

[0031] A plurality of support rods 44 are inserted into the insertion holes 43 formed on the surface of the buckle 42. After the support rods 44 are inserted into the insertion holes 43, the support rods 44 will form a triangle with the buckle 42. Next, during the installation of the anti-bulging net 31, the arc-shaped side of the buckle 42 is aligned with and inserted into the surface of the mounting rod 41 fixed between the two mounting plates 32. In this way, the anti-bulging net 31 can be provided with additional support to prevent deformation due to the extrusion of the inner lining, so as to ensure that the anti-bulging net 31 can always adhere to the surface of the inner lining. Since the number of support rods 44 is set to six, the triangle formed by the buckle 42 and the support rods 44 mounted on the surface thereof can be placed in reverse, so that the support range of the support rods 44 to the anti-bulging net 31 can be increased, and the strength of the anti-bulging net 31 during use can be further improved.

[0032] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A bulge-preventing device of an electromagnetic flowmeter, comprising an electromagnetic flowmeter body (1), two flanges (2) are fixedly connected to the surface of the electromagnetic flowmeter body (1), characterized in that: The electromagnetic flowmeter body (1) is provided with an anti-bulging assembly (3), and the anti-bulging assembly (3) is provided with a supporting assembly (4); The anti-bulging assembly (3) comprises an anti-bulging net (31) movably connected in the electromagnetic flowmeter body (1), two mounting plates (32) fixedly connected to the surface of the anti-bulging net (31), a limiting plate (33) movably connected to one side of the mounting plate (32), locking holes (34) formed in the mounting plate (32) and the limiting plate (33), locking bolts (35) movably connected in the locking holes (34), and locking nuts (36) threadedly connected to the surface of the locking bolts (35).

2. An anti-buoyancy device for an electromagnetic flowmeter as defined in claim 1, wherein: The supporting assembly (4) comprises a plurality of mounting rods (41) fixedly connected to one side of the mounting plate (32), a plurality of buckles (42) movably connected to the surface of the mounting rod (41), two insertion holes (43) formed in the surface of the buckle (42), and supporting rods (44) inserted into the insertion holes (43).

3. The anti-buoyance device for an electromagnetic flowmeter of claim 1, wherein: The flange (2) is provided with a giving-way groove (5) formed in the surface thereof, the giving-way groove (5) is annular, the diameter of the giving-way groove (5) is consistent with the diameter of the limiting plate (33), and the depth of the giving-way groove (5) is greater than the length of the locking bolt (35).

4. An anti-buoyancy device for an electromagnetic flowmeter as defined in claim 2, wherein: The outer circle diameter of the anti-bulging net (31) is consistent with the inner circle diameter of the electromagnetic flowmeter body (1), and the anti-bulging net (31) and the supporting rod (44) are made of corrosion-resistant hard metal materials.

5. The anti-buoyance device of claim 2 wherein: The side of the buckle (42) close to the mounting rod (41) is arc-shaped, and the buckle (42) is made of elastic material.

6. An anti-buoyancy device for an electromagnetic flowmeter as defined in claim 2, wherein: The supporting rods (44) are arranged in a triangular shape, and the number of the mounting rods (41) is six.

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