CN109405900B - Electromagnetic flowmeter capable of adjusting electrode structure position - Google Patents
Electromagnetic flowmeter capable of adjusting electrode structure position Download PDFInfo
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- CN109405900B CN109405900B CN201710713250.3A CN201710713250A CN109405900B CN 109405900 B CN109405900 B CN 109405900B CN 201710713250 A CN201710713250 A CN 201710713250A CN 109405900 B CN109405900 B CN 109405900B
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- electrode structure
- electromagnetic flowmeter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
- G01F1/584—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters constructions of electrodes, accessories therefor
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- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an electromagnetic flowmeter capable of adjusting the position of an electrode structure, wherein a measuring pipe body is provided with an installation pipe lining, a control module is arranged on the side edge of the measuring pipe body, a magnetic field module and an electrode structure are electrically connected with the control module and are respectively arranged on the outer side surface which is orthogonal to the measuring pipe body and are isolated from and not contacted with working fluid, each electrode structure part extends into the installation pipe lining, an actuating element is electrically connected with the control module and is connected with the electrode structure, and the actuating element can drive the electrode structure to move towards the direction which is orthogonal to the inner direction of the installation pipe lining under the driving of external force, so that the loss of the electrode structure is compensated, the correct measuring result is obtained, and.
Description
Technical Field
The invention relates to an electromagnetic flowmeter, in particular to an electromagnetic flowmeter capable of adjusting the position of an electrode structure.
Background
Electromagnetic flowmeters use electromagnetic induction to measure the flow rate of a conductive fluid (e.g., water) flowing through a measurement tube. The electromagnetic flowmeter mainly comprises a measuring tube, an electrode structure arranged on the measuring tube and a coil. In addition, after the coil is powered, a magnetic field is formed in the measuring tube, and electromotive force is generated between the coil and the electrode structure, so that the flow rate of the fluid can be calculated by the change of the electromotive force generated on the magnetic field when the fluid passes through the measuring tube.
In general, an electromagnetic flowmeter senses fluid in a pipe body through an electrode structure, but the fluid in the pipe body wears an electrode structure detection part when flowing, so that after a certain period of time, the measurement operation of the electromagnetic flowmeter may fail or be misaligned, and parasitic noise of an electronic signal is generated. In addition, because the metal shell seat of the traditional electromagnetic flowmeter is mostly sealed by welding, the invasion of water vapor is avoided, and the normal operation of elements such as an internal electrode structure, a coil and the like is ensured, but the welding process causes the difficulty of replacing and maintaining the loss of the electrode structure in the metal shell seat, so that the related pipeline needs to be closed to eliminate the electromagnetic flowmeter, the production interruption and the capacity reduction are caused, and the cost is greatly increased.
Disclosure of Invention
An objective of the present invention is to provide an electromagnetic flowmeter capable of adjusting the position of an electrode structure, so as to compensate the loss of the electrode structure, and adjust the relative position of two electrode structures, so that the orthogonal vertical flow field flow direction can be perpendicular to maintain the correct measurement result, reduce the noise of electronic signals, shorten the maintenance time, simplify the process, maintain the productivity, and increase the service life of the electromagnetic flowmeter.
In order to achieve the above object, the present invention provides an electromagnetic flowmeter capable of adjusting the position of an electrode structure, comprising a measuring tube, a control module, a magnetic field module, an electrode structure and at least one actuating element. The measuring tube body is provided with a mounting tube lining, the control module is arranged on the side edge of the measuring tube body, the magnetic field module is electrically connected with the control module and mounted in the first outer side direction orthogonal to the measuring tube body and isolated from and not contacted with working fluid, and the electrode structure is electrically connected with the control module and correspondingly arranged in the second outer side direction orthogonal to the measuring tube body and isolated from and not contacted with the working fluid. Each electrode structure part stretches into the mounting tube lining, the actuating element is electrically connected with the control module and is connected with one of the electrode structures, and the actuating element can drive the electrode structures to move towards the direction orthogonal to the inner direction of the mounting tube lining under the driving of external force.
Compared with the prior art, the actuating element is electrically connected with the control module and the electrode structure, and the actuating element can drive the electrode structure to move towards the direction orthogonal to the inner direction of the lining of the mounting pipe under the driving of external force through the control of the control module, so that the loss of the electrode structure is compensated, and a correct measurement result and service life are obtained; in addition, the invention can adjust the position of the electrode structure on the measuring tube body according to the actual use condition, thereby further increasing the flexible application.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 is a schematic perspective exploded view of an electromagnetic flowmeter of the present invention with adjustable electrode configuration position
FIG. 2 is a schematic perspective view of an electromagnetic flowmeter of the present invention with adjustable electrode structure position
FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 2
FIG. 4 is a sectional view of the mounting portion of the electromagnetic flowmeter of the present invention
FIG. 5 is a schematic diagram of the electrode structure position adjustment of the electromagnetic flowmeter of the present invention
Fig. 6 is a cross-sectional view taken along line 6-6 of fig. 2.
Wherein the reference numerals
1 … electromagnetic flowmeter
10 … measuring tube
11 … installation pipe liner
12 … installation tube
13 … mounting part 14 … plug
15 … limiting seat
151 … location part
1511 … inclined guide surface
1512 … flat surface
20 … control module
21 … conducting wire
30 … magnetic field module
300 … first outside direction
40 … electrode structure
400 … second lateral direction
41 … electrode probe
42 … bearing plate
421 … flat faced surface
422 … bevel
50 … actuating element
60 … protection shell seat
61 … first shell seat
62 … second shell seat
70 … locking member
Angle of A …
Detailed Description
The following detailed description and technical contents of the present invention are described with reference to the accompanying drawings, however, the accompanying drawings are provided for reference and illustration purposes only and are not intended to limit the present invention.
Referring to fig. 1 to fig. 3, a three-dimensional exploded schematic view, a three-dimensional external schematic view, and a cross-sectional view along a side direction of the electromagnetic flowmeter with adjustable electrode structure position according to the present invention are respectively shown. The electromagnetic flowmeter 1 capable of adjusting the position of the electrode structure of the present invention comprises a measuring tube 10, a control module 20, a magnetic field module 30, an electrode structure 40 and at least one actuating element 50. The magnetic field module 30 and the electrode structure 40 are respectively fixed on two opposite sides of the measuring tube 10. Also, the control module 20 controls the magnetic field module 30, the electrode structure 40 and the actuating element 50. Accordingly, the electromagnetic flowmeter 1 can measure the flow velocity of the fluid in the measuring tube 10, and can adjust the distance that the electrode structure 40 extends into the measuring tube 10 by the driving of the actuating element 50. The structure of the electromagnetic flowmeter 1 will be described in more detail below.
As shown in fig. 1, the measuring tube 10 has a mounting tube lining 11 for a working fluid to flow; the control module 20 is disposed at one side of the measuring tube 10. Also, the magnetic field module 30 is electrically connected to the control module 20 and installed in a first outer direction 300 orthogonal to the measuring tube 10 to isolate and prevent contact with the working fluid. The magnetic field module 30 is capable of generating an electromagnetic field in the installation pipe liner 11 when driven by an external power through the control of the control module 20. In the present embodiment, the magnetic field module 30 is a magnetic sheet.
Furthermore, the electrode structure 40 is electrically connected to the control module 20 and is correspondingly disposed in a second outer direction 400 orthogonal to the measuring tube 10, so as to be isolated from the working fluid and not to contact the working fluid, and the electrode structure 40 partially extends into the mounting tube lining 11 to contact the working fluid. In the present embodiment, the number of the electrode structures 40 is one pair, and the electrode structures are respectively combined on two sides of the measuring tube 10. The actuating element 50 is electrically connected to the control module 20 and at least one of the electrode structures 40. The actuating element 50 is driven by an external force under the control of the control module 20 to drive one of the electrode structures 40 to move toward the direction perpendicular to the inner direction of the installation pipe liner 11, so as to compensate for the loss of the electrode structure 40, thereby obtaining an accurate measurement result.
It should be noted that the first outer direction 300 and the second outer direction 400 form an included angle a on a plane orthogonal to the flow direction of the working fluid, and the included angle a is not limited to 90 degrees. The external force is a physical pushing force generated by electric, magnetic, optical, and acoustic principles or an external mechanical force to drive the actuating element 50 to move the electrode structure 40.
Referring to fig. 3, in an embodiment of the present invention, the measuring tube 10 further includes a mounting tube 12 sleeved outside the mounting tube lining 11. The mounting pipe 12 has two mounting portions 13 provided to face each other, and each of the two mounting portions 13 has a through hole communicating with the mounting pipe liner 11. The pair of electrode structures 40 are correspondingly disposed in the two mounting portions 13 and extend into the mounting tube lining 11 through the through hole.
Furthermore, each of the electrode structures 40 has an electrode probe 41 and a carrier plate 42 surrounding the outer edge surface of the electrode probe 41. The actuating element 50 is disposed on the carrier plate 42. In addition, the measuring tube 10 further includes two plug caps 14 correspondingly covering the two mounting portions 13 and a limiting seat 15 formed in the mounting portion 13. The limiting seat 15 is connected to the mounting tube lining 11 and is provided with the through hole. In more detail, the pair of electrode structures 40 are respectively connected with an actuating element 50; furthermore, the control module 20 further includes a wire 21, and the actuating element 50 is controlled by the control module 20 through the connection of the wire 21, so as to drive the connected electrode structure 40 to move.
It should be noted that the number of the electrode structures 40 and the corresponding mounting portions 13 can be adjusted according to the actual usage.
In this embodiment, the electromagnetic flowmeter 1 further includes a protection housing base 60 and a plurality of locking elements 70. The protection housing 60 is connected to the control module 20 and covers the measuring tube 10. Specifically, the protection housing 60 includes a first housing 61 and a second housing 62 that are covered with each other, and the first housing 61 and the second housing 62 are correspondingly coupled to the measuring tube 10 through the locking components 70.
Please refer to fig. 4 and fig. 5, which are a combined cross-sectional view of the mounting portion of the electromagnetic flowmeter and a schematic diagram of adjusting the position of the electrode structure, respectively. As shown in fig. 4, in the present embodiment, the actuating element 50 is preferably a piezoelectric element assembly. In addition, two sides of the piezoelectric element assembly are respectively abutted against the plug 14 and the carrier plate 42, and the piezoelectric element assembly is formed by stacking the conventional piezoelectric material and the ceramic insulating material, and is driven by an external force to deform, and pushes the carrier plate 42 to move the electrode structure 40 toward the inner direction of the mounting tube lining 11, thereby achieving the purpose of adjusting the position of the electrode structure 40.
It should be noted that, in the present embodiment, the inner wall surface of the limit seat 15 has a plurality of positioning portions 151, and the carrier plate 42 is driven by the actuating element 50 to be positioned on one of the positioning portions 151. The positioning portions 151 are disposed to maintain the sealing between the supporting plate 42 and the retaining base 15, and prevent the supporting plate 42 from moving away from the inner lining 11.
Specifically, the positioning portion 151 is an inverted hook, and the supporting plate 42 has a flat surface 421 and an inclined surface 422 at a side adjacent to the positioning portion 151; the barb has an inclined guide surface 1511 corresponding to the inclined surface 422 and a stop surface 1512 capable of abutting against the carrier 42. Further, when the carrier plate 42 is driven by the actuating element 50 to move toward the inner bottom of the stopper 15, the inclined surface 422 of the carrier plate 42 moves toward the other positioning portion 151 inside along the guiding of the inclined guiding surface 1511, so that the flat attaching surface 421 of the carrier plate 42 can be positioned on the flat blocking surface 1512 of the inner positioning portion 151, thereby adjusting the position of the electrode structure 40 extending into the mounting tube lining 11.
Referring to fig. 5, when the piezoelectric element assembly is driven by an external force, it deforms, and pushes the carrier plate 42 to move toward the center of the measuring tube 10. At this time, the carrier plate 42 is pushed by the piezoelectric element assembly to move toward the inner bottom of the position-limiting seat 15 and is positioned on the other inner positioning portion 151. Therefore, the electrode structure 40 (the electrode probe 41 and the carrier plate 42) moves toward the inner side of the mounting tube lining 11 to change the position in the mounting tube lining 11, thereby achieving the purpose of adjusting the position of the electrode structure 40.
Fig. 6 is a schematic diagram illustrating the position movement of the electrode structure of the electromagnetic flowmeter according to the present invention. In the present embodiment, the electrode structures 40 on two sides of the measuring tube 10 are respectively connected to an actuating element 50 (piezoelectric element assembly), and the two actuating elements 50 are controlled by the control module 20 to drive the connected electrode structures 40 to move.
When the pair of electrode structures 40 is worn and measurement error or inaccuracy occurs, the electromagnetic flowmeter 1 of the present invention can control the driving of the two actuating elements 50 through the control module 20, so as to adjust the position of the pair of electrode structures 40 extending into the measuring tube 10. In actual use, the positions of the pair of electrode structures 40 can be respectively adjusted according to actual use conditions, so that the flexibility and the service life of the electromagnetic flowmeter 1 are further improved.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. An electromagnetic flowmeter for adjusting the position of an electrode structure, comprising:
a measuring tube body having a mounting tube liner for a working fluid to flow in the tube;
the control module is arranged on one outer side edge of the measuring pipe body and is isolated from the working fluid and not contacted with the working fluid;
the magnetic field module is electrically connected with the control module and is installed in a first outer side direction which is orthogonal to the measuring pipe body and is isolated from and not contacted with the working fluid, and the magnetic field module is driven by external power and can generate an electromagnetic field in the installation pipe lining;
an electrode structure electrically connected to the control module and disposed in a second outer direction orthogonal to the measuring tube, wherein the electrode structure partially extends into the mounting tube liner to contact the working fluid; and
the actuating element is electrically connected with the control module and the electrode structure, and can drive the electrode structure to move towards the direction orthogonal to the inner direction of the mounting pipe lining under the driving of an external force;
wherein, the electrode structure is provided with an electrode probe and a bearing plate which is wound around the outer edge surface of the electrode probe, and the actuating element is arranged on the bearing plate;
the measuring tube body further comprises a mounting tube sleeved outside the mounting tube liner, the mounting tube is provided with a mounting part which is arranged oppositely, the mounting part is provided with a through hole communicated with the mounting tube liner, the electrode structure is correspondingly arranged in the mounting part and extends into the mounting tube liner through the through hole, the measuring tube body further comprises a plug cover correspondingly covering the mounting part and a limiting seat formed in the mounting part, the limiting seat and the mounting tube liner are integrally formed and provided with the through hole, the inner wall surface of the limiting seat is provided with a plurality of positioning parts, and the bearing plate is driven by the actuating element to be positioned on one positioning part.
2. The electromagnetic flowmeter capable of adjusting the position of the electrode structure as set forth in claim 1, wherein the first outer direction and the second outer direction form an angle in a plane orthogonal to a flow direction of the working fluid.
3. The electromagnetic flowmeter of claim 1, wherein the actuator is a piezoelectric element assembly, two sides of the piezoelectric element assembly respectively abut against the plug and the carrier plate, the piezoelectric element assembly is driven by an external force to deform and push the carrier plate to move the electrode structure toward the inside of the liner of the mounting tube.
4. The electromagnetic flowmeter capable of adjusting the position of the electrode structure as claimed in claim 1, wherein the positioning portion is an inverted hook, the supporting plate has a flat surface and an inclined surface on a side adjacent to the positioning portion, and the inverted hook has an inclined guide surface corresponding to the inclined surface and a flat surface capable of abutting against the supporting plate.
5. The electromagnetic flowmeter of claim 1, further comprising a protective housing coupled to the control module and covering the measuring tube.
6. The electromagnetic flowmeter of claim 5, further comprising a plurality of locking elements, wherein the protective housing comprises a first housing and a second housing that are covered with each other, and the first housing and the second housing are correspondingly coupled to the measuring tube via the locking elements.
7. The electromagnetic flowmeter capable of adjusting the position of the electrode structure as claimed in claim 1, wherein the number of the electrode structures is one pair, the pair of electrode structures are respectively connected with an actuating element, and the actuating element is controlled by the control module to drive the connected electrode structures to move.
8. The adjustable electrode structure position electromagnetic flow meter of claim 1, wherein the external force drives the actuator electrode structure to move by an impulse generated by electricity, magnetism, light, sound waves, or an external mechanical force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713250.3A CN109405900B (en) | 2017-08-18 | 2017-08-18 | Electromagnetic flowmeter capable of adjusting electrode structure position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713250.3A CN109405900B (en) | 2017-08-18 | 2017-08-18 | Electromagnetic flowmeter capable of adjusting electrode structure position |
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| Publication Number | Publication Date |
|---|---|
| CN109405900A CN109405900A (en) | 2019-03-01 |
| CN109405900B true CN109405900B (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710713250.3A Active CN109405900B (en) | 2017-08-18 | 2017-08-18 | Electromagnetic flowmeter capable of adjusting electrode structure position |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307230A (en) * | 2020-03-02 | 2020-06-19 | 西门子传感器与通讯有限公司 | Electromagnetic flowmeter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7587947B1 (en) * | 2009-01-21 | 2009-09-15 | Murray F Feller | Magnetic flow meter with selective electrode positioning |
| CN202533116U (en) * | 2012-04-28 | 2012-11-14 | 重庆威巴仪器有限责任公司 | Electromagnetic flowmeter |
| CN103226032A (en) * | 2012-01-25 | 2013-07-31 | 株式会社东芝 | Electromagnetic flowmeter and determinator |
| CN203432628U (en) * | 2013-05-21 | 2014-02-12 | 艾默生过程控制流量技术有限公司 | Electrode assembly, electromagnetic flowmeter, and on-site instrument |
| CN205192547U (en) * | 2015-04-27 | 2016-04-27 | 艾默生过程控制流量技术有限公司 | Spring unit and use its electrode subassembly |
-
2017
- 2017-08-18 CN CN201710713250.3A patent/CN109405900B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7587947B1 (en) * | 2009-01-21 | 2009-09-15 | Murray F Feller | Magnetic flow meter with selective electrode positioning |
| CN103226032A (en) * | 2012-01-25 | 2013-07-31 | 株式会社东芝 | Electromagnetic flowmeter and determinator |
| CN202533116U (en) * | 2012-04-28 | 2012-11-14 | 重庆威巴仪器有限责任公司 | Electromagnetic flowmeter |
| CN203432628U (en) * | 2013-05-21 | 2014-02-12 | 艾默生过程控制流量技术有限公司 | Electrode assembly, electromagnetic flowmeter, and on-site instrument |
| CN205192547U (en) * | 2015-04-27 | 2016-04-27 | 艾默生过程控制流量技术有限公司 | Spring unit and use its electrode subassembly |
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| CN109405900A (en) | 2019-03-01 |
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