CN218211447U

CN218211447U - High-precision electromagnetic flowmeter

Info

Publication number: CN218211447U
Application number: CN202222492678.9U
Authority: CN
Inventors: 顾海芹
Original assignee: Jiangsu Meikong Instrument Co ltd
Current assignee: Jiangsu Meikong Instrument Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-01-03
Anticipated expiration: 2032-09-21

Abstract

The utility model discloses a high-precision electromagnetic flowmeter, which comprises a flowmeter main body which is in flange connection with a pipeline, wherein the inner side of the flowmeter main body is fixedly provided with an inner liner, and the outer side of the flowmeter main body is fixedly provided with a flow metering cylinder; further comprising: the filter screen is fixedly arranged at the right end of the inner side of the lining, a rotating shaft penetrates through the middle position of the filter screen in a movable mode, and an impeller is fixedly arranged on the outer side of the rotating shaft; the bracket is fixedly arranged on the outer side of the rotating shaft, and one end of the bracket, which is close to the lining, is movably connected with a cleaning sheet for cleaning scales attached to the inner wall of the lining; and the fixing ring is fixedly arranged at the end part of the rotating shaft, and the outer side of the fixing ring is movably connected with a blade. This high accuracy electromagnetic flowmeter can carry out effectual filtration, breakage to bulky impurity in the fluid to effectively avoid the flowmeter inboard to take place to block up, can carry out the automation clearance to the inside lining inner wall simultaneously, effectively avoid the scale deposit and influence measurement accuracy.

Description

High-precision electromagnetic flowmeter

Technical Field

The utility model relates to an electromagnetic flowmeter technical field specifically is a high accuracy electromagnetic flowmeter.

Background

The electromagnetic flowmeter is a new type of flow measuring instrument, which uses the electromagnetic induction principle to measure the flow of conductive fluid according to the electromotive force induced when the conductive fluid passes through an external magnetic field, but the existing electromagnetic flowmeter still has some defects.

In the prior art, like a prevent blockking up electromagnetic flowmeter of publication No. CN216012357U, through setting up the motor, accessible motor drive dwang rotates, thereby it rotates to drive the second gear, the second gear will drive first gear and rotate this moment, first gear pivoted also can drive pivot and cutting blade and rotate simultaneously, when carrying water or sewage of impurity in the logical water pipe, can start the motor, the cutting blade will cut the impurity in the quality of water this moment, treat that the impurity cuts and can prevent to appear the condition of blockking up in the logical water pipe after the piece, just prevented the jam of electromagnetic flowmeter simultaneously, but it needs the independent installation driving source in the use, and then increased the cost of flowmeter, and the drive mechanism of driving source need run through the body, thereby the possibility of flowmeter weeping has been increased, its inside lining lacks clearance mechanism simultaneously, make impurity of cuting and impurity in the liquid attach to the inside lining inner wall easily, and then produce thick incrustation scale easily, thereby can influence electromagnetic flowmeter's measurement accuracy.

We have therefore proposed a high accuracy electromagnetic flowmeter to solve the problems set out above.

Disclosure of Invention

An object of the utility model is to provide a high accuracy electromagnetic flowmeter to solve the inconvenient problem of carrying out convenient stifled and clearing up the incrustation scale of carrying on of electromagnetic flowmeter on the present market that above-mentioned background art provided.

In order to achieve the above purpose, the utility model provides a following technical scheme: a high-precision electromagnetic flowmeter comprises a flowmeter main body which is in flange connection with a pipeline, wherein a lining is fixedly arranged on the inner side of the flowmeter main body, and a flow metering cylinder is fixedly arranged on the outer side of the flowmeter main body;

further comprising:

the filter screen is fixedly arranged at the right end of the inner side of the lining, a rotating shaft penetrates through the middle position of the filter screen in a movable mode, and an impeller is fixedly arranged on the outer side of the rotating shaft;

the bracket is fixedly arranged on the outer side of the rotating shaft, and one end of the bracket, which is close to the lining, is movably connected with a cleaning sheet for cleaning scales attached to the inner wall of the lining;

and the fixing ring is fixedly arranged at the end part of the rotating shaft, and the outer side of the fixing ring is movably connected with a blade for cutting impurities.

Preferably, the filter screen is the setting of circular structure, just it forms to weave by elastic metal between the center of filter screen and the edge, and the outer wall laminating of the border position of filter screen is in the tip inner wall of inside lining.

Through adopting above-mentioned technical scheme for the filter screen can filter the inboard liquid that gets into the inside lining, effectively avoids bulky impurity to get into the inside lining and causes the jam.

Preferably, the pivot is connected with the filter screen rotation, just the impeller in the pivot outside is close to the right-hand member of inside lining, and the axis of impeller and the axis coincidence of filter screen.

Through adopting above-mentioned technical scheme for when inside flowing through liquid of inside lining, liquid can assault the impeller, makes the impeller drive the pivot and rotates under the liquid stream effect.

Preferably, the support is provided with two about the pivot symmetry, just the support rotates with the cleaning sheet to be connected with the torsional spring between the axle head of cleaning sheet and the support, and the tip laminating of cleaning sheet is in the inner wall of inside lining.

Through adopting above-mentioned technical scheme for when the impeller drives the pivot rotation, can make the pivot drive the cleaning sheet through the support and carry out synchronous revolution, and then make the cleaning sheet can clear up the adnexed dirty body of lining inner wall, avoid the dirty body that generates too thick and influence the detection precision.

Preferably, the number of the blades is two and is symmetrical about the fixing ring, and the cutting edges of the blades are attached to the outer wall of the filter screen.

Through adopting above-mentioned technical scheme for can drive the blade when the pivot rotates and carry out synchronous revolution, make the blade can cut the bulky object that the filter screen outside filtered out, thereby avoid the filter screen to take place to block up and influence the use.

Preferably, one side of the blade close to the filter screen is embedded with a first magnetic block, one side of the filter screen far away from the blade is fixedly provided with a second magnetic block, the magnetic poles of the first magnetic blocks embedded in the two blades are opposite, and a torsion spring is connected between the shaft end of the blade and the fixing ring.

Through adopting above-mentioned technical scheme for the pivot can rotate through fixed zone area knife section, and when the first magnetic path of blade surface embedding installation was close to the second magnetic path, it can carry out elastic rotation under magnetic force, and when two magnetic paths were kept away from each other, the blade can reset and strike the filter screen under torsional spring elastic action, avoids the filter screen surface to remain the filtrations.

Compared with the prior art, the beneficial effects of the utility model are that: the high-precision electromagnetic flowmeter can effectively filter and crush large-volume impurities in fluid, so that the inner side of the flowmeter is effectively prevented from being blocked, and meanwhile, the inner wall of the lining can be automatically cleaned, so that the influence of scaling on the measurement precision is effectively avoided, and the specific content is as follows;

1. the inner side of the lining is provided with a filter screen, an impeller and a blade, when liquid is conveyed on the inner side of the lining, the filter screen can filter large-volume impurities in the liquid, the impeller can drive a rotating shaft to rotate under the driving of liquid flow, so that the rotating shaft drives the blade to synchronously rotate, the blade can cut and crush the large-volume impurities, the blockage is avoided, and meanwhile, in the rotating process of the blade, the blade can elastically rotate under the action of magnetic force and the elasticity of a torsional spring, the filter screen is knocked, and the impurity residue is avoided;

2. be provided with impeller and cleaning sheet, receive the liquid stream effect when rotatory when the impeller, can be so that the pivot drives the cleaning sheet through the support and rotate for the cleaning sheet can scrape and clear up the adnexed impurity of inside lining inner wall and dirt, effectively avoids the inboard scale deposit of inside lining too thick and influence the measurement, has effectively improved electromagnetic flowmeter's measuring effect.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the lining of the present invention;

FIG. 3 is a schematic view of the structure of the lining of the present invention in a three-dimensional cross-section;

FIG. 4 is a schematic view of the installation structure of the rotating shaft of the present invention;

FIG. 5 is a schematic view of the three-dimensional structure of the filter net of the present invention;

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 7 is an enlarged schematic view of the structure at B in fig. 5 according to the present invention.

In the figure: 1. a flow meter body; 2. a liner; 3. a flow metering cylinder; 4. filtering with a screen; 5. a rotating shaft; 6. an impeller; 7. a support; 8. a cleaning sheet; 9. a fixing ring; 10. a blade; 11. a first magnetic block; 12. a second magnetic block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a high-precision electromagnetic flowmeter comprises a flowmeter body 1 which is in flange connection with a pipeline, wherein a lining 2 is fixedly installed on the inner side of the flowmeter body 1, and a flowmeter measuring cylinder 3 is fixedly installed on the outer side of the flowmeter body 1;

further comprising: the filter screen 4 is fixedly arranged at the right end of the inner side of the lining 2, a rotating shaft 5 penetrates through the middle position of the filter screen 4 in a movable mode, and an impeller 6 is fixedly arranged on the outer side of the rotating shaft 5; the bracket 7 is fixedly arranged on the outer side of the rotating shaft 5, and one end of the bracket 7 close to the lining 2 is movably connected with a cleaning sheet 8 for cleaning scales attached to the inner wall of the lining 2; the fixing ring 9 is fixedly arranged at the end part of the rotating shaft 5, and the outer side of the fixing ring 9 is movably connected with a blade 10 for cutting impurities. Filter screen 4 is the setting of circular structure, and weaves by elastic metal between the center of filter screen 4 and the edge and form to the outer wall laminating of the border position of filter screen 4 is in the tip inner wall of inside lining 2. The rotating shaft 5 is rotatably connected with the filter screen 4, the impeller 6 on the outer side of the rotating shaft 5 is close to the right end of the lining 2, and the central axis of the impeller 6 is superposed with the central axis of the filter screen 4. Two blades 10 are symmetrically arranged about the fixing ring 9, and the cutting edges of the blades 10 are attached to the outer wall of the filter screen 4. One side of blade 10 that is close to filter screen 4 is embedded and is installed first magnetic path 11, and one side fixed mounting that filter screen 4 kept away from blade 10 has second magnetic path 12, and the magnetic pole of the first magnetic path 11 of two blade 10 inside embedding installations is opposite, and be connected with the torsional spring between the axle head of blade 10 and the solid fixed ring 9, as shown in fig. 1-7, carry out fixed connection with flowmeter main part 1 and pipeline, when carrying liquid, flowmeter graduated cylinder 3 can carry out flow calculation to the fluid of carrying through electromagnetic action, filter screen 4 can filter impurity in the liquid, impeller 6 can drive pivot 5 under liquid impact and rotate simultaneously, pivot 5 can drive blade 10 this moment and rotate, make blade 10 can cut the bulky impurity that filters out in the filter screen 4 outside, blade 10 can drive first magnetic path 11 intermittent type through second magnetic path 12 in rotatory in-process simultaneously, make blade 10 can carry out elastic rotation under magnetic force and torsional spring elastic force, make it can strike filter screen 4, avoid filter screen 4 surface residual impurity.

Support 7 is provided with two about 5 symmetries of pivot, and support 7 rotates with cleaning sheet 8 to be connected with the torsional spring between cleaning sheet 8's the axle head and the support 7, and cleaning sheet 8's tip laminating in the inner wall of inside lining 2, as shown in fig. 2-4, when pivot 5 is rotatory, it can drive cleaning sheet 8 through support 7 and rotate in step, make cleaning sheet 8 can scrape and fall and clear up the remaining impurity of inside lining 2 inner wall, effectively avoid inner wall remaining impurity and scale deposit, thereby effectively improved flowmeter's measurement accuracy.

The working principle is as follows: when the high-precision electromagnetic flowmeter is used, firstly, as shown in fig. 1-7, the flowmeter main body 1 is connected with a conveying pipeline, when liquid is conveyed, the filter screen 4 can filter large-volume impurities in liquid, the impeller 6 can drive the rotating shaft 5 to synchronously rotate under the drive of liquid flow, so that the blade 10 can cut the large-volume impurities filtered out, the blockage is avoided, meanwhile, the cleaning sheet 8 can clean the residues on the inner wall of the lining 2, the scaling is avoided, the measurement precision is further improved, in the process of liquid conveying, the flowmeter measuring cylinder 3 can monitor and display the liquid flow, and a series of work is completed.

Those not described in detail in this specification are within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A high-precision electromagnetic flowmeter comprises a flowmeter main body (1) which is in flange connection with a pipeline, wherein a lining (2) is fixedly installed on the inner side of the flowmeter main body (1), and a flow metering cylinder (3) is fixedly installed on the outer side of the flowmeter main body (1);

it is characterized by also comprising:

the filter screen (4) is fixedly arranged at the right end of the inner side of the lining (2), a rotating shaft (5) penetrates through the middle position of the filter screen (4) in a movable mode, and an impeller (6) is fixedly arranged on the outer side of the rotating shaft (5);

the support (7) is fixedly arranged on the outer side of the rotating shaft (5), and one end, close to the lining (2), of the support (7) is movably connected with a cleaning sheet (8) for cleaning scales attached to the inner wall of the lining (2);

the fixed ring (9) is fixedly mounted at the end part of the rotating shaft (5), and the outer side of the fixed ring (9) is movably connected with a blade (10) for cutting impurities.

2. A high accuracy electromagnetic flowmeter as set forth in claim 1 wherein: the filter screen (4) is the setting of circular structure, just weave by elastic metal between the center of filter screen (4) and the edge and form, and the outer wall laminating in the tip inner wall of inside lining (2) of the border position of filter screen (4).

3. A high accuracy electromagnetic flowmeter as set forth in claim 1 wherein: the rotating shaft (5) is rotatably connected with the filter screen (4), the impeller (6) on the outer side of the rotating shaft (5) is close to the right end of the lining (2), and the central axis of the impeller (6) coincides with the central axis of the filter screen (4).

4. A high accuracy electromagnetic flowmeter as set forth in claim 1 wherein: support (7) are provided with two about pivot (5) symmetry, just support (7) rotate with cleaning sheet (8) and are connected, and be connected with the torsional spring between the axle head of cleaning sheet (8) and support (7), and the tip laminating of cleaning sheet (8) is in the inner wall of inside lining (2).

5. A high accuracy electromagnetic flowmeter as set forth in claim 1 wherein: the blade (10) is provided with two about solid fixed ring (9) symmetry, just the cutting edge laminating in the outer wall of filter screen (4) of blade (10).

6. A high accuracy electromagnetic flowmeter as set forth in claim 1 wherein: blade (10) are close to one side embedding of filter screen (4) and install first magnetic path (11), just one side fixed mounting that blade (10) were kept away from in filter screen (4) has second magnetic path (12), and the magnetic pole of the first magnetic path (11) of two inside embedding installations of blade (10) is opposite, and be connected with the torsional spring between the axle head of blade (10) and solid fixed ring (9).