CN215114680U

CN215114680U - Wear-resisting electrode's electromagnetic flowmeter

Info

Publication number: CN215114680U
Application number: CN202120816233.4U
Authority: CN
Inventors: 唐杨成
Original assignee: Shanghai Guanghua Instrument Co ltd
Current assignee: Shanghai Guanghua Instrument Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-10
Anticipated expiration: 2031-04-20

Abstract

The utility model relates to a wear-resisting electrode's electromagnetic flowmeter relates to electromagnetic flowmeter's field, its include the casing, set up in inside lining in the casing, with the connecting cylinder of the inside intercommunication of casing, through coupling assembling set up in electrode main part in the connecting cylinder and set up in the converter of casing one end is kept away from to the connecting cylinder, the installing port has been seted up to the casing, electrode main part one end is stretched into in the installing port, the one end that electrode main part is close to the installing port is provided with the electrode head, the electrode head spraying has the tungsten carbide coating. The wear of the electrode can be reduced by spraying the tungsten carbide coating on the head of the electrode.

Description

Wear-resisting electrode's electromagnetic flowmeter

Technical Field

The application relates to the field of electromagnetic flowmeters, in particular to an electromagnetic flowmeter with wear-resistant electrodes.

Background

The electromagnetic flowmeter is a speed type instrument which is based on Faraday's law of electromagnetic induction, compares the electromotive force generated by cutting magnetic lines by conductive fluid with the reference potential of the measured liquid, and finally converts the induced potential signal into flow speed and finally into volume flow. The working principle of the electromagnetic flowmeter determines that the measuring electrode must be capable of completing the electromotive force detection of the measuring medium when the electromagnetic flowmeter works, so that the electrode must contact the medium.

In view of the above related technologies, the inventor believes that in many occasions, a measurement medium has strong abrasion, and while the measurement medium is abraded, an interference signal is generated on an electrode to cause instrument fluctuation, and when the interference signal is serious, the electrode leaks, the instrument is damaged, and finally the instrument cannot work normally.

SUMMERY OF THE UTILITY MODEL

In order to reduce the abrasion of the electrode, the application provides an electromagnetic flowmeter with an abrasion-resistant electrode.

The application provides a wear-resisting electrode's electromagnetic flowmeter adopts following technical scheme:

the utility model provides a wear-resisting electrode's electromagnetic flowmeter, includes the casing, set up in inside lining in the casing, with the connecting cylinder of the inside intercommunication of casing, through coupling assembling set up in electrode main part in the connecting cylinder and set up in the converter of casing one end is kept away from to the connecting cylinder, the installing port has been seted up to the casing, electrode main part one end is stretched into in the installing port, the one end that electrode main part is close to the installing port is provided with the electrode head, the electrode head spraying has the tungsten carbide coating.

By adopting the technical scheme, the wear resistance of the electrode head can be improved, and the wear speed of the measuring medium to the electrode is reduced, so that the measuring effect is ideal, and the measuring data can be reflected in real time.

Optionally, the connection assembly includes an external thread provided on the outer side of the electrode main body and a nut screwed to the outer side of the electrode main body.

Through adopting above-mentioned technical scheme, can improve the connection stability between electrode main part and the casing to being connected between electrode main part and the casing.

Optionally, the outer side of the electrode main body is sleeved with an inner gasket, a pressure spring and an outer gasket, the outer side of the inner gasket is attached to the outer side of the shell, the pressure spring is located between the inner gasket and the outer gasket, and the outer gasket is located between the pressure spring and the nut.

Through adopting above-mentioned technical scheme, when nut threaded connection was in the electrode main part outside, the pressure spring can be compressed to make outer packing ring and nut butt, thereby improve the stability of being connected between nut and the electrode main part.

Optionally, the side wall of the mounting opening is provided with a sealing ring, and the outer side of the electrode main body is attached to and abutted against the inner wall of the sealing ring.

By adopting the technical scheme, the sealing performance between the electrode main body and the mounting port can be improved, and the phenomenon that a medium in the shell flows out of the mounting port is reduced.

Optionally, one end of the connecting cylinder, which is far away from the shell, is provided with a lower connecting plate, the converter is provided with an upper connecting plate matched with the lower connecting plate, an annular plate is circumferentially arranged on the outer side of the upper connecting plate, a fastening assembly is arranged between the annular plate and the lower connecting plate, one side, which is close to the lower connecting plate, of the annular plate is provided with a mounting groove, the end face of the lower connecting plate is provided with an insertion groove, the fastening assembly comprises a sliding column, an insertion column, a connecting rod and a spring, the sliding column is slidably connected into the mounting groove, the insertion column is connected with one end of the sliding column and is in insertion fit with the insertion groove, the connecting rod is far away from one end of the insertion groove, the spring is sleeved on the outer side of the connecting rod, the connecting rod penetrates through and stretches out of one side, which is far away from the lower connecting plate, and two ends of the spring are respectively connected with the bottom of the mounting groove and the sliding column.

Through adopting above-mentioned technical scheme, the pulling connecting rod makes the slip post slide along the mounting groove to make the plug column break away from the inserting groove, thereby can take off the converter, in order to realize the detachable connection between converter and the casing, the dismouting and the change of the converter of being convenient for.

Optionally, the casing is provided with first valve and second valve, the connecting cylinder is located between first valve and the second valve, the casing intercommunication has input tube and output tube, the input tube is located between connecting cylinder and the first valve, the output tube is located between connecting cylinder and the second valve, the input tube is provided with the input valve, the output tube is provided with output valve.

Through adopting above-mentioned technical scheme, the medium in the casing is flowing always, forms the incrustation scale easily at the casing inside wall, when the casing inside wall is stained with more incrustation scale, closes first valve and second valve to open input valve and output valve, pack into hydrochloric acid solution in toward the casing through the input tube, make hydrochloric acid solution dissolve the incrustation scale of casing inside wall, and the output tube can supply the gas outflow in the casing, makes the atmospheric pressure in the casing can not be too high.

Optionally, the inserting column and the inserting groove are both arranged in a square shape, and the sliding column is rotatably connected with the mounting groove.

Through adopting above-mentioned technical scheme, when dismantling the converter, the pulling connecting rod makes the plug column break away from the inserting groove, then rotates the connecting rod, and the spring promotes the slip post, can make plug column tip and lower connecting plate outer peripheral face butt, is convenient for dismantle the converter.

Optionally, the inner gasket is an insulating gasket.

By adopting the technical scheme, the insulating gasket can improve the insulating property of the electrode main body and the electrode head.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the arrangement of the tungsten carbide coating can improve the wear resistance of the electrode head and slow down the wear speed of the electrode by a measuring medium, so that the measuring effect is ideal, and the measuring data can be reflected in real time;

2. the pulling connecting rod makes the slip post slide along the mounting groove to make the grafting post break away from the inserting groove, thereby can take off the converter, with the detachable connection of realization converter between and the casing, the dismouting and the change of the converter of being convenient for.

Drawings

FIG. 1 is a schematic illustration of an embodiment of the present application;

FIG. 2 is a schematic view of an electrode body and electrode head of an embodiment of the present application;

FIG. 3 is a schematic view of a fastening assembly of an embodiment of the present application.

Description of reference numerals: 1. a housing; 2. a liner; 3. a connecting cylinder; 4. an electrode body; 5. a converter; 6. an installation port; 7. a seal ring; 8. an electrode head; 9. an inner gasket; 10. a pressure spring; 11. an outer gasket; 12. an external thread; 13. a nut; 14. a first valve; 15. a second valve; 16. an input tube; 17. an output pipe; 18. an input valve; 19. an output valve; 20. a lower connecting plate; 21. an upper connecting plate; 22. an annular plate; 23. mounting grooves; 24. inserting grooves; 25. a sliding post; 26. inserting the column; 27. a connecting rod; 28. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses wear-resisting electrode's electromagnetic flowmeter. Referring to fig. 1, the wear-resistant electrode's electromagnetic flowmeter includes casing 1, inside lining 2, connecting cylinder 3, electrode main body 4 and converter 5, and casing 1 is cylindric setting, and the both ends that casing 1 is relative are the opening setting, and inside lining 2 is cylindric setting, and the laminating of inside lining 2 outer peripheral face and the 1 inner peripheral face of casing, connecting cylinder 3 connect in the casing 1 outside, and inside and the inside intercommunication of casing 1 of connecting cylinder 3, and connecting cylinder 3 is cylindricly equally. Install coupling assembling in the connecting cylinder 3, electrode body 4 passes through coupling assembling to be connected in connecting cylinder 3, and converter 5 connects in the one end that casing 1 was kept away from to connecting cylinder 3.

Referring to fig. 2, a circular mounting opening 6 is formed in the position, corresponding to the connecting cylinder 3, on the outer side of the casing 1, the mounting opening 6 is communicated with the inside of the casing 1, the mounting opening 6 penetrates through the inner side and the outer side of the lining 2, a sealing ring 7 is mounted on the side wall of the mounting opening 6, and the outer peripheral surface of the sealing ring 7 is attached to the side wall of the mounting opening 6. One end of the electrode body 4 extends into the mounting opening 6, the electrode body 4 is cylindrical, the outer peripheral surface of the electrode body 4 is attached to the inner peripheral surface of the sealing ring 7, and in the embodiment, the sealing ring 7 is made of rubber materials and has certain plasticity. One end of the electrode main body 4 extending into the mounting opening 6 is integrally connected with an electrode head 8, and in addition, one side of the electrode head 8 far away from the electrode main body 4 is sprayed with a tungsten carbide coating.

When the electromagnetic flowmeter works, the electrode head 8 finishes the electromotive force detection of the measuring medium, and the tungsten carbide coating can reduce the degree of strong abrasion of the measuring medium to the electrode head 8, so that the electrode body 4 is not easy to generate interference signals, thereby ensuring the normal work of the electromagnetic flowmeter, ensuring the ideal measuring effect and reflecting the measured data in real time.

The outer side of the electrode main body 4 is sleeved with an inner gasket 9, a pressure spring 10 and an outer gasket 11, the inner gasket 9 is located on one side, away from the shell 1, of the sealing ring 7, the inner gasket 9 and the sealing ring 7 are attached to each other, the pressure spring 10 is located on one side, away from the sealing ring 7, of the inner gasket 9, and the outer gasket 11 is located on one side, away from the inner gasket 9, of the pressure spring 10. In addition, in the present embodiment, the outer gasket 11 is made of an insulating material, and the material for making the outer gasket 11 may be rubber, mica, PVC, bakelite board, and the like.

The coupling assembling includes external screw thread 12 and nut 13, and external screw thread 12 is seted up in the position of 4 outer peripheral faces of electrode main part and keeping away from casing 1, and nut 13 passes through external screw thread 12 and connects in the electrode main part 4 outside, and nut 13 is located one side that pressure spring 10 was kept away from to

outer packing ring

11, and 13 tip of nut and 11 one side butt of outer packing ring to make pressure spring 10 be compression state.

Referring to fig. 1, when the measuring medium is water and the water flows in the housing 1 for a long time, scale is easily formed on the inner side wall of the housing 1, in order to clean the scale adhered to the inner side wall of the housing 1, the housing 1 is provided with a first valve 14 and a second valve 15, the first valve 14 and the second valve 15 are respectively located on two opposite sides of the connecting cylinder 3, the housing 1 is further communicated with an input pipe 16 and an output pipe 17, the input pipe 16 is located between the first valve 14 and the connecting cylinder 3, the output pipe 17 is located between the second valve 15 and the connecting cylinder 3, one end of the input pipe 16, which is far away from the housing 1, is provided with an opening, and one end of the output pipe 17, which is far away from the housing 1, is also provided with an opening. Further, the inlet pipe 16 is provided with an inlet valve 18, and the outlet pipe 17 is provided with an outlet valve 19.

When more scale is adhered to the inner side wall of the shell 1, the first valve 14 and the second valve 15 are closed, the input valve 18 and the output valve 19 are opened, and the hydrochloric acid solution is injected into the shell 1 through the input pipe 16, so that the hydrochloric acid solution reacts with the scale and the scale is dissolved, and the scale on the inner side wall of the shell 1 is cleaned.

Referring to fig. 2 and 3, a circular lower connecting plate 20 is horizontally installed at one end of the connecting cylinder 3 far away from the housing 1, a circular upper connecting plate 21 is horizontally installed at a position of the converter 5 close to the connecting cylinder 3, the lower connecting plate 20 and the upper connecting plate 21 are attached to each other, and the outer peripheral surface of the lower connecting plate 20 is flush with the outer peripheral surface of the upper connecting plate 21. The outer peripheral surface of the upper connecting plate 21 is circumferentially connected with an annular plate 22, and the inner peripheral surface of the annular plate 22 is attached to the outer peripheral surface of the lower connecting plate 20.

Two circular mounting grooves 23 are horizontally formed in the inner peripheral surface of the annular plate 22, the two mounting grooves 23 are symmetrical about the central axis of the annular plate 22, two square insertion grooves 24 are horizontally formed in the outer peripheral surface of the lower connecting plate 20, the two insertion grooves 24 are symmetrical about the central axis of the lower connecting plate 20, and the mounting grooves 23 are aligned with the insertion grooves 24.

Two groups of fastening components are arranged between the annular plate 22 and the lower connecting plate 20, each fastening component comprises a sliding column 25, an inserting column 26, a connecting rod 27 and a spring 28, the sliding column 25 is connected in the mounting groove 23 in a sliding mode, the sliding column 25 is cylindrical, the connecting rod 27 is horizontally connected to one end, far away from the inserting groove 24, of the sliding column 25, the connecting rod 27 penetrates through and extends out of one side, far away from the lower connecting plate 20, of the annular plate 22, and the connecting rod 27 is connected with the annular plate 22 in a sliding mode; the spring 28 is sleeved outside the connecting rod 27, the spring 28 is positioned in the mounting groove 23, and two opposite ends of the spring 28 are respectively connected with the bottom of the mounting groove 23 and one end of the sliding column 25 close to the connecting rod 27; the inserting column 26 is horizontally connected to one end of the sliding column 25 far away from the connecting rod 27, the inserting column 26 is arranged in a square shape, the width of the section of the inserting column 26 is smaller than the diameter of the section of the sliding column 25, and the inserting column 26 is matched with the inserting groove 24 in an inserting mode. In addition, the sum of the lengths of the sliding columns 25 and the inserting columns 26 is less than the length of the mounting groove 23.

When it is desired to remove the converter 5, the connecting rod 27 is pulled outwardly, causing the sliding post 25 to slide within the mounting slot 23, causing the mating post 26 to disengage from the mating slot 24, and causing the spring 28 to be compressed, thereby enabling removal of the converter 5.

To facilitate the removal of the converter 5, the sliding posts 25 are rotatably connected to the mounting slots 23 and the connecting rods 27 are rotatably connected to the annular plate 22. When the converter 5 is disassembled, after the connecting rod 27 is pulled outwards, the sliding column 25 and the inserting column 26 are rotated through the connecting rod 27, and the inserting column 26 and the inserting groove 24 are dislocated, so that the end part of the inserting column 26 can be abutted against the outer peripheral surface of the lower connecting plate 20, and the converter 5 can be conveniently and directly taken down.

The implementation principle of the electromagnetic flowmeter with the wear-resistant electrode in the embodiment of the application is as follows: when the electromagnetic flowmeter works, the electrode head 8 finishes the electromotive force detection of the measuring medium, and the tungsten carbide coating can reduce the degree of strong abrasion of the measuring medium to the electrode head 8, so that the electrode body 4 is not easy to generate interference signals, thereby ensuring the normal work of the electromagnetic flowmeter, ensuring the ideal measuring effect and reflecting the measured data in real time.

When the converter 5 needs to be disassembled, the connecting rod 27 is pulled outwards, the sliding column 25 slides in the mounting groove 23, the inserting column 26 is separated from the inserting groove 24, the spring 28 is compressed, then the sliding column 25 and the inserting column 26 are rotated through the connecting rod 27, the inserting column 26 and the inserting groove 24 are dislocated, the end part of the inserting column 26 can be abutted to the outer peripheral surface of the lower connecting plate 20, and then the converter 5 is taken down.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An electromagnetic flowmeter of wear-resisting electrode which characterized in that: including casing (1), set up in inside lining (2) in casing (1), with connecting cylinder (3) of casing (1) inside intercommunication, through coupling assembling set up in electrode main part (4) in connecting cylinder (3) and set up in converter (5) of casing (1) one end are kept away from in connecting cylinder (3), installing port (6) have been seted up in casing (1), in electrode main part (4) one end stretches into installing port (6), the one end that electrode main part (4) are close to installing port (6) is provided with electrode head (8), electrode head (8) spraying has the tungsten carbide coating.

2. A wear electrode electromagnetic flowmeter, as set forth in claim 1, wherein: the connecting assembly comprises an external thread (12) arranged on the outer side of the electrode main body (4) and a nut (13) in threaded connection with the outer side of the electrode main body (4).

3. A wear electrode electromagnetic flowmeter, as set forth in claim 2, wherein: the electrode body (4) outside cover is equipped with inner washer (9), pressure spring (10) and outer packing ring (11), the laminating in inner washer (9) outside and casing (1) outside, pressure spring (10) are located between inner washer (9) and outer packing ring (11), outer packing ring (11) are located between pressure spring (10) and nut (13).

4. A wear electrode electromagnetic flowmeter, as set forth in claim 2, wherein: the side wall of the mounting opening (6) is provided with a sealing ring (7), and the outer side of the electrode main body (4) is attached to and abutted against the inner wall of the sealing ring (7).

5. A wear electrode electromagnetic flowmeter, as set forth in claim 1, wherein: a lower connecting plate (20) is arranged at one end, far away from the shell (1), of the connecting cylinder (3), a fastening assembly is arranged between the annular plate (22) and the lower connecting plate (20), an upper connecting plate (21) matched with the lower connecting plate (20) is arranged on the converter (5), an annular plate (22) is circumferentially arranged on the outer side of the upper connecting plate (21), a mounting groove (23) is formed in one side, close to the lower connecting plate (20), of the annular plate (22), an inserting groove (24) is formed in the end face of the lower connecting plate (20), the fastening assembly comprises a sliding column (25) which is slidably connected into the mounting groove (23), an inserting column (26) which is arranged at one end of the sliding column (25) and is in inserting fit with the inserting groove (24), a connecting rod (27) which is arranged at one end, far away from the inserting groove (24), of the sliding column (25) and a spring (28) which is sleeved on the outer side of the connecting rod (27), the connecting rod (27) penetrates through and extends out of one side, far away from the lower connecting plate (20), of the annular plate (22), and the two ends of the spring (28) are connected with the bottom of the mounting groove (23) and the sliding column (25) respectively.

6. A wear electrode electromagnetic flowmeter, as set forth in claim 1, wherein: casing (1) is provided with first valve (14) and second valve (15), connecting cylinder (3) are located between first valve (14) and second valve (15), casing (1) intercommunication has input tube (16) and output tube (17), input tube (16) are located between connecting cylinder (3) and first valve (14), output tube (17) are located between connecting cylinder (3) and second valve (15), input tube (16) are provided with input valve (18), output tube (17) are provided with output valve (19).

7. An abrasion-resistant electrode electromagnetic flowmeter according to claim 5 wherein: the inserting column (26) and the inserting groove (24) are both arranged in a square shape, and the sliding column (25) is rotatably connected with the mounting groove (23).

8. A wear electrode electromagnetic flowmeter, as set forth in claim 3, wherein: the inner gasket (9) is an insulating gasket.