High-precision electromagnetic flowmeter

Abstract

The utility model relates to the technical field of fluid measurement, and particularly discloses a high-precision electromagnetic flowmeter which is characterized in that a flange plate at the tail end of a pipeline is inserted into a through hole in the side end of the flowmeter, a rotary clamp is rotated anticlockwise, and when the rotary clamp rotates, an inclined groove formed in the rotary clamp extrudes a clamping block in a sliding groove ring; when the six clamping blocks slide to limit positions, the inner side wall of the rotary clamp abuts against the clamping blocks, the French disc inserted into the flow meter can be clamped to complete installation, and when the French disc is maintained or replaced, the rotary clamp is rotated anticlockwise or clockwise, so that the French disc can be conveniently replaced. When the rotary clamp rotates to a proper position, the clamping block is not propped by the inner side wall of the rotary clamp any more, the clamping block slides back to the interior of the sliding groove ring under the attraction action of the magnet to complete unlocking, the flange plate is fixed by rotating the rotary clamp, and the effects of being suitable for installation of flange plates with various holes and capable of being rapidly disassembled and assembled without an external tool are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid measurement, in particular to a high-precision 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 uses the principle of electromagnetic induction to measure the flow rate of conductive fluid based on the induced electromotive force when the conductive fluid passes through an external magnetic field. The electromagnetic flowmeter sets up a magnetic field around the conductive liquid. When the conductive liquid cuts the magnetic lines of force in the magnetic field, an induced potential proportional to the average flow rate of the liquid is generated. The induced voltage signal is detected by two or more electrodes in contact with the liquid and sent to the converter for intelligent processing, thereby realizing the display of the instantaneous flow rate and cumulative flow rate of the liquid and the communication and control between the flow data and the microcomputer system.

[0003] At present, an existing high-precision electromagnetic flowmeter (such as patent number: CN219714444U) discloses a high-precision electromagnetic flowmeter, including a measuring pipe, flanges are provided at both ends of the measuring pipe, a replacement component is provided in the measuring pipe, a fixed pipe is provided on the measuring pipe, a connecting pipe is placed in the fixed pipe, a converter is provided on the connecting pipe, a retaining ring is provided on the upper part of the outer surface of the connecting pipe, and a mounting component is provided on the retaining ring. The utility model facilitates the disassembly and replacement of the liner ring through the provision of the replacement component, so as to avoid the influence of the wear of the liner ring and the scale generated on the measurement result, thereby achieving the purpose of improving the measurement accuracy, with a simple structure and convenient replacement; through the provision of the installation component, it is convenient to quickly install the converter, facilitate maintenance, improve maintenance efficiency, and at the same time, it is convenient to adjust the use direction of the converter according to needs, and the flexibility is greatly enhanced to meet user needs.

[0004] However, in the process of implementing the above technical solution, it was found that there are at least the following technical problems: an existing high-precision electromagnetic flowmeter is connected to the pipe with bolts through the flange at the side end. When the number of bolt holes on the flange at the pipe end is different from the number of flange holes on the side end of the flowmeter, the connection cannot be made, and tools such as wrenches are required for disassembly and assembly, which is inconvenient for later maintenance. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a high-precision electromagnetic flowmeter to solve the technical problem that the existing high-precision electromagnetic flowmeter is connected to a pipe by bolts through a flange at the side end, and when the number of bolt holes on the flange at the pipe end is different from the number of the flange at the side end of the flowmeter, the connection cannot be made, and tools such as wrenches are required for disassembly and assembly, which is inconvenient for later maintenance.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A high-precision electromagnetic flowmeter comprises a measuring tube, wherein two ends of the measuring tube are symmetrically fixedly installed with a slide ring, the outer side wall of the slide ring is rotatably installed with a rotary clamp, and the inner side wall of the slide ring is slidably installed with six clamping blocks; two through holes are symmetrically provided in the middle of the measuring tube, six guide holes are evenly provided on the slide ring, six inclined grooves are evenly provided on the inner side wall of the rotary clamp, and the six clamping blocks are respectively located in the six guide holes of the slide ring, an upper coil cover is fixedly installed on the outer side wall of the measuring tube, and a lower coil cover is fixedly installed on the outer side wall of the measuring tube located on the opposite side of the upper coil cover; there are four bolt holes in total at the side ends of the upper coil cover and the lower coil cover, a converter is fixedly installed at the top end of the upper coil cover, a display screen is fixedly installed at the side end of the converter, an excitation coil is fixedly installed on the inner side wall of the upper coil cover, and four bolt columns are evenly fixedly installed at the side end of the upper coil cover; an excitation coil is fixedly installed on the lower coil cover symmetrically with the upper coil cover, the two excitation coils are connected to the converter through a wire, and the four bolt columns are respectively located in the bolt holes of the upper coil cover and the lower coil cover.

[0010] Preferably: two electrode columns are symmetrically fixedly mounted on the inner side wall of the measuring tube; the two electrode columns are respectively located in through holes in the middle of the measuring tube and are connected to the converter via wires.

[0011] Preferably, six magnets are evenly and fixedly installed inside the rotary card; the magnets are respectively installed on the six card blocks.

[0012] (III) Beneficial effects

[0013] 1. Insert the flange at the end of the pipeline into the through hole at the side end of the flowmeter, and rotate the rotary card counterclockwise. When the rotary card rotates, the inclined groove inside it will squeeze the block inside the slide ring, thereby pushing the block to slide inside the slide ring. When the six blocks slide to the limit position, the inner wall of the rotary card will resist the block, and the flange card inserted into the flowmeter can be installed. When maintaining or replacing, rotate the rotary card counterclockwise or clockwise. When the rotary card is rotated to the appropriate position, the block will no longer be resisted by the inner wall of the rotary card. Under the suction of the magnet, the block will slide back to the inside of the slide ring to complete the unlocking. The flange is fixed by rotating the rotary card, which is suitable for the installation of flanges with various holes and can be quickly disassembled and assembled without external tools.

[0014] 2. When the flow meter needs to be inspected, the four bolt columns can be rotated with a wrench to complete the disassembly of the upper coil cover and the lower coil cover. After separating the upper coil cover and the lower coil cover, the electrode column and the excitation coil inside can be seen, and the electrode column and the excitation coil of the flow meter can be replaced or repaired in time. By rotating the four bolt columns with a wrench to complete the disassembly of the upper coil cover and the lower coil cover, the electrode column and the excitation coil can be quickly replaced or repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 This is a structural diagram of the converter of the utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the measuring tube of the utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the rotary clamp of the utility model;

[0019] Figure 4 This is a structural diagram of the slip ring groove of the utility model.

[0020] Legend: 1. Measuring tube; 2. Upper coil cover; 3. Lower coil cover; 4. Converter; 5. Display screen; 6. Bolt column; 7. Rotary clamp; 8. Electrode column; 9. Excitation coil; 11. Slide ring; 12. Clamp block; 13. Magnet. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides a high-precision electromagnetic flowmeter, which effectively solves the technical problem that an existing high-precision electromagnetic flowmeter is connected to a pipe by bolts through a flange at the side end. When the number of bolt holes on the flange at the pipe end is different from the number of flange holes on the side end of the flowmeter, the connection cannot be made, and tools such as wrenches are required for disassembly and assembly, which is inconvenient for later maintenance. The flange at the end of the pipe is inserted into the through hole at the side end of the flowmeter, and the rotary clamp is rotated counterclockwise. When the rotary clamp rotates, the inclined groove opened inside the rotary clamp will squeeze the block inside the slide groove ring, thereby pushing the block to slide inside the slide groove ring. When the six blocks slide to the limit position, the inner wall of the rotary clamp will resist the block, and the flange clamp inserted into the flowmeter can be installed. When maintenance or replacement is required, the rotary clamp can be rotated counterclockwise or clockwise. Turn the rotary card. When the rotary card is rotated to the appropriate position, the card block will no longer be held by the inner wall of the rotary card. Under the suction of the magnet, the card block will slide back into the inside of the slide ring to complete the unlocking. The flange is fixed by rotating the rotary card, which is suitable for the installation of flanges with various holes and can be quickly disassembled and assembled without external tools. When the flow meter needs to be repaired, the four bolt columns can be rotated with a wrench to complete the disassembly of the upper coil cover and the lower coil cover. After separating the upper coil cover and the lower coil cover, the electrode column and the excitation coil inside can be seen, and the electrode column and the excitation coil of the flow meter can be replaced or repaired in time. The four bolt columns can be rotated with a wrench to complete the disassembly of the upper coil cover and the lower coil cover, achieving the effect of being able to quickly replace or repair the electrode column and the excitation coil.

[0022] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that an existing high-precision electromagnetic flowmeter is connected to a pipeline by bolts through a flange at the side end. When the number of bolt holes on the flange at the pipeline end is different from the number of flanges at the side end of the flowmeter, the connection cannot be made, and tools such as wrenches are required for disassembly and assembly, which is inconvenient for later maintenance. The overall idea is as follows:

[0023] The high-precision electromagnetic flowmeter comprises a measuring tube 1, at both ends of which slide rings 11 are symmetrically fixedly installed, the outer wall of the slide ring 11 is rotatably installed with a rotary clamp 7, and the inner wall of the slide ring 11 is slidably installed with six clamping blocks 12; two through holes are symmetrically opened in the middle of the measuring tube 1, six guide holes are evenly opened on the slide ring 11, six inclined grooves are evenly opened on the inner wall of the rotary clamp 7, and the six clamping blocks 12 are respectively located in the six guide holes of the slide ring 11.

[0024] An upper coil cover 2 is fixedly installed on the outer wall of the measuring tube 1, and a lower coil cover 3 is fixedly installed on the outer wall of the measuring tube 1 on the opposite side of the upper coil cover 2; there are four bolt holes in total on the side ends of the upper coil cover 2 and the lower coil cover 3, a converter 4 is fixedly installed on the top of the upper coil cover 2, a display screen 5 is fixedly installed on the side end of the converter 4, an excitation coil 9 is fixedly installed on the inner wall of the upper coil cover 2, and four bolt columns 6 are evenly fixedly installed on the side end of the upper coil cover 2; an excitation coil 9 is fixedly installed on the lower coil cover 3 symmetrically with the upper coil cover 2.

[0025] The two excitation coils 9 are connected to the converter 4 through wires, the four bolt columns 6 are respectively located in the bolt holes of the upper coil cover 2 and the lower coil cover 3, and the inner wall of the measuring tube 1 is symmetrically fixed with two electrode columns 8; the two electrode columns 8 are respectively located in the through holes in the middle of the measuring tube 1, and are connected to the converter 4 through wires, and six magnets 13 are evenly fixedly installed inside the rotary clamp 7; the magnets 13 are respectively installed on six clamp blocks 12.

[0026] In view of the problems existing in the prior art, the utility model provides a high-precision electromagnetic flowmeter.

[0027] Working principle:

[0028] The first step is to insert the flange at the end of the pipeline into the through hole at the side end of the flow meter, and rotate the rotary clamp 7 counterclockwise. When the rotary clamp 7 rotates, the inclined groove opened inside the rotary clamp 7 will squeeze the block 12 inside the slide ring 11, thereby pushing the block 12 to slide inside the slide ring 11. When the six blocks 12 slide to the limit position, the inner wall of the rotary clamp 7 will resist the block 12, and the flange clamp inserted into the flow meter can be installed. When maintenance or replacement is required, the rotary clamp 7 is rotated counterclockwise or clockwise. When the rotary clamp 7 is rotated to the appropriate position, the block 12 will no longer be resisted by the inner wall of the rotary clamp 7. Under the suction force of the magnet 13, the block 12 will slide back to the inside of the slide ring 11 to complete unlocking. The flange is fixed by rotating the rotary clamp 7, which achieves the effect of being suitable for the installation of flanges with various holes and being able to be quickly disassembled and assembled without external tools.

[0029] In the second step, when the flow meter needs to be inspected and repaired, the four bolt columns 6 can be rotated with a wrench to complete the disassembly of the upper coil cover 2 and the lower coil cover 3. After separating the upper coil cover 2 and the lower coil cover 3, the electrode column 8 and the excitation coil 9 inside can be seen, and the electrode column 8 and the excitation coil 9 of the flow meter can be replaced or repaired in time. By rotating the four bolt columns 6 with a wrench, the upper coil cover 2 and the lower coil cover 3 can be disassembled, achieving the effect of being able to quickly replace or repair the electrode column 8 and the excitation coil 9.

[0030] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A high-precision electromagnetic flowmeter, comprising a measuring tube (1), characterized in that: Both ends of the measuring tube (1) are symmetrically fixedly mounted with a slide ring (11), the outer side wall of the slide ring (11) is rotatably mounted with a rotary clamp (7), and the inner side wall of the slide ring (11) is slidably mounted with six clamping blocks (12); The measuring tube (1) has two through holes symmetrically formed in the middle, the slide ring (11) has six guide holes evenly formed, the inner wall of the rotary clamp (7) has six inclined grooves evenly formed, and the six clamping blocks (12) are respectively located in the six guide holes of the slide ring (11).

2. A high-precision electromagnetic flowmeter as claimed in claim 1, characterized in that: An upper coil cover (2) is fixedly mounted on the outer side wall of the measuring tube (1), and a lower coil cover (3) is fixedly mounted on the outer side wall of the measuring tube (1) on the opposite side of the upper coil cover (2); The side ends of the upper coil cover (2) and the lower coil cover (3) are provided with four bolt holes in total.

3. A high-precision electromagnetic flowmeter as claimed in claim 2, characterized in that: A converter (4) is fixedly mounted on the top end of the upper coil cover (2), and a display screen (5) is fixedly mounted on the side end of the converter (4).

4. A high-precision electromagnetic flowmeter as claimed in claim 2, characterized in that: An excitation coil (9) is fixedly mounted on the inner side wall of the upper coil cover (2), and four bolt columns (6) are evenly fixedly mounted on the side end of the upper coil cover (2); An excitation coil (9) is fixedly mounted on the lower coil cover (3) symmetrically to the upper coil cover (2), the two excitation coils (9) are connected to the converter (4) via wires, and four bolt columns (6) are respectively located in the bolt holes of the upper coil cover (2) and the lower coil cover (3).

5. A high-precision electromagnetic flowmeter as claimed in claim 1, characterized in that: Two electrode columns (8) are symmetrically fixedly mounted on the inner side wall of the measuring tube (1); The two electrode columns (8) are respectively located in through holes in the middle of the measuring tube (1) and are connected to the converter (4) via wires.

6. A high-precision electromagnetic flowmeter as claimed in claim 1, characterized in that: Six magnets (13) are evenly and fixedly mounted inside the rotary clamp (7); The magnets (13) are respectively mounted on the six clamping blocks (12).

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