CN110411523B - High-voltage electromagnetic flowmeter electrode packaging hardware - Google Patents
High-voltage electromagnetic flowmeter electrode packaging hardware Download PDFInfo
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- CN110411523B CN110411523B CN201910697278.1A CN201910697278A CN110411523B CN 110411523 B CN110411523 B CN 110411523B CN 201910697278 A CN201910697278 A CN 201910697278A CN 110411523 B CN110411523 B CN 110411523B
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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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- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an electrode packaging device of a high-voltage electromagnetic flowmeter, which comprises an electrode pressing block, a flow guide pipe and an electrode seat, wherein the electrode pressing block is arranged on the electrode pressing block; one end of the electrode pressing block is fixedly connected with an electrode seat hole formed in the electrode seat; one end of the electrode seat, which is far away from the electrode pressing block, is connected with the outer wall of the flow guide pipe; one end of the electrode sequentially penetrates through an electrode pressing block hole formed in the electrode pressing block and a guide pipe hole formed in the guide pipe and extends into the guide pipe; and an electrode boss is arranged on the electrode in the area between the electrode pressing block and the outer wall of the guide pipe, is positioned between the bottom end of the electrode pressing block and the outer wall of the guide pipe and is in sealing connection with the outer wall of the guide pipe. Electrode briquetting and electrode support fixed connection compress tightly electrode boss and honeycomb duct outer wall through the electrode briquetting, guarantee the stability of being connected between electrode boss and the honeycomb duct outer wall, adopt the mode that the formula of pushing down compresses tightly to seal, improve the pressure and bear the scope, realized the high-pressure seal of electrode, expanded the application occasion of electromagnetic flowmeter.
Description
Technical Field
The invention belongs to the field of electromagnetic flowmeters, and relates to an electrode packaging device of a high-voltage electromagnetic flowmeter.
Background
The electromagnetic flowmeter is a novel flow measuring instrument which is rapidly developed along with the development of electronic technology in 50-60 years of the 20 th century. The electromagnetic flowmeter measures the flow of conducting fluid based on the electromotive force induced when the conducting fluid passes through external magnetic field by means of electromagnetic induction principle. The structure of the electromagnetic flowmeter mainly comprises a magnetic circuit system, a measuring conduit, an electrode, a shell, a lining, a converter and the like.
The electrode of the electromagnetic flowmeter is an important component of the electromagnetic flowmeter, is an important component for measuring and sensing the electromotive force generated by the electrolyte on the electromagnetic coil, and has the function of leading out an induced potential signal which is in direct proportion to the measured value. The electrodes are typically made of non-magnetic stainless steel and are required to be flush with the liner so that fluid passage is not impeded. It is preferably installed in a vertical direction of the pipe to prevent deposits from being accumulated thereon to affect the measurement accuracy.
The existing electrode packaging mode is that an electrode structure is like a round head screw, a round head is pressed on the surface of a lining, and a nut at the back of the electrode is used for tensioning and sealing. Because the lining material is generally rubber or polytetrafluoroethylene and the like, the lining material is the material for manufacturing the sealing element, and the lining can be used as an insulating layer and also can be used as the sealing element of the electrode. However, this electrode encapsulation cannot be applied as a high voltage, and leaks occur above 10 Mpa.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an electrode packaging device of a high-voltage electromagnetic flowmeter.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
an electrode packaging device of a high-voltage electromagnetic flowmeter comprises an electrode pressing block, a flow guide pipe and an electrode seat;
one end of the electrode pressing block is fixedly connected with an electrode seat hole formed in the electrode seat, and the end, far away from the electrode pressing block, of the electrode seat is fixedly connected with the outer wall of the flow guide pipe; one end of the electrode sequentially penetrates through an electrode pressing block hole formed in the electrode pressing block and a guide pipe hole formed in the guide pipe and extends into the guide pipe;
and an electrode boss is arranged on the electrode in the area between the electrode pressing block and the outer wall of the guide pipe, is positioned between the bottom end of the electrode pressing block and the outer wall of the guide pipe and is in sealing connection with the outer wall of the guide pipe.
The invention further improves the following steps:
and a lining is arranged between the outer wall of the guide pipe and the electrode boss, and the electrode boss is hermetically connected with the lining.
The liner is F46 material.
The electrode cushion block is positioned inside the lining, and one end of the electrode cushion block is connected with the outer wall of the flow guide pipe.
The electrode structure also comprises a sealing ring, wherein the sealing ring is positioned in a sealing groove formed in the electrode boss, and the electrode boss is connected with the lining in a sealing manner through the sealing ring.
The electrode lug boss is connected with the outer wall of the flow guide pipe in a sealing manner through the sealing ring.
The electrode is also sleeved with an insulating sleeve, a first insulating gasket and a second insulating gasket; the insulating sleeve is positioned in the electrode pressing block hole, the first insulating gasket is positioned between the electrode boss and the bottom end of the electrode pressing block, and the second insulating gasket is positioned above the top end of the electrode pressing block.
The electrode is further sleeved with a nut, the nut is located above the top end of the electrode pressing block, and the electrode and a lead of the electromagnetic flowmeter converter are tightly pressed through the nut.
And a metal gasket is sleeved on the electrode between the screw cap and the top end of the electrode pressing block.
The electrode holder is welded with the outer wall of the flow guide pipe, and the electrode pressing block is in threaded connection with the electrode holder hole.
Compared with the prior art, the invention has the following beneficial effects:
the electrode holder is arranged on the outer wall of the flow guide pipe, the electrode pressing block is fixedly connected with the electrode holder hole formed in the electrode holder, the electrode boss is arranged on the electrode, the electrode boss and the outer wall of the flow guide pipe are pressed tightly through the electrode pressing block, and the stability of connection between the electrode pressing block and the outer wall of the flow guide pipe is guaranteed.
Furthermore, a lining is arranged between the outer wall of the flow guide pipe and the electrode boss, so that the insulativity between the electrode and the flow guide pipe is enhanced, the shape of the lining can be designed through a tool, the electrode boss is convenient to be in sealing connection with the lining, and the electrode boss is in sealing connection with the outer wall of the flow guide pipe.
Furthermore, an electrode cushion block is arranged, the electrode cushion block is positioned inside the lining, one end of the electrode cushion block is connected with the outer wall of the flow guide pipe, the strength of the lining is enhanced, and the stability of the sealing connection of the electrode boss and the lining is improved.
Furthermore, a sealing ring is arranged, so that the sealing reliability of the electrode boss and the lining is enhanced.
Furthermore, an insulating sleeve, a first insulating gasket and a second insulating gasket are arranged, so that the insulativity between the electrode and the electrode pressing block is improved, the material selection range of the electrode pressing block is enlarged, and the measuring accuracy is ensured.
Furthermore, the nut is arranged, the electrode and the lead of the electromagnetic flowmeter converter are tightly pressed through the nut, the structure is simple, the realization is easy, and the disassembly and the maintenance are convenient.
Furthermore, a metal gasket is arranged, so that the connection reliability of a lead wire and an electrode of the electromagnetic flowmeter converter is enhanced.
Furthermore, the electrode pressing block is in threaded connection with the electrode seat hole, the upper position and the lower position of the electrode pressing block can be conveniently adjusted, the assembly is simple, the production difficulty is not increased, and the reliability is high.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an assembly view of the draft tube, liner and electrode holder of the present invention;
FIG. 3 is a schematic view of an electrode pad of the present invention;
FIG. 4 is a schematic view of an electrode holder of the present invention;
fig. 5 is a schematic view of an electrode of the present invention.
Wherein: 1-an electrode; 2-electrode pad block; 3-sealing ring; 4-a first insulating pad; 5-an insulating sleeve; 6-a metal gasket; 7-a screw cap; 8-electrode briquetting; 9-electrode holder; 10-a flow guide pipe; 11-a liner tube; 12-a liner; 13-side plate; 41-second insulating spacer.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 to 5, the high-voltage electromagnetic flowmeter electrode packaging device of the invention comprises a nut 7, a first insulating gasket 4, a second insulating gasket 41, an electrode pressing block 8, an electrode holder 9, a flow guide pipe 10, a liner pipe 11, a liner 12, a metal gasket 6, an insulating sleeve 5, a sealing ring 3, an electrode cushion block 2 and an electrode 1.
The electrode cushion block 2 is welded with the outer wall of the flow guide pipe 10, and a through hole formed in the electrode cushion block 2, a through hole formed in the electrode holder 9, a through hole formed in the electrode pressing block 8 and the center of the through hole formed in the flow guide pipe 10 are coaxial. Liner tube 11 and honeycomb duct 10 inner wall welded connection, all set up the lining 12 of a layer F46 material on liner tube 11 inner wall and the inner wall of the through-hole of honeycomb duct 10 and set up, set up a plurality of through-holes on liner tube 11, through the effect of these through-holes, strengthen the lining 12 of F46 material and honeycomb duct 10 inner wall's reliability of being connected, prevent that lining 12 and honeycomb duct 10 inner wall from peeling off under the high pressure condition. Also be provided with liner 12 of F46 material between honeycomb duct 10 outer wall and the electrode boss, the upper surface of liner 12 in this region can be the plane, and electrode boss bottom is connected with liner 12, offers O type seal groove on the electrode boss bottom, sets up sealing washer 3 in the seal groove, and sealing washer 3 is used for sealing electrode boss bottom and liner 12, and the surface is planar liner 12 structure also is convenient for sealing washer 3's use, and sealed effect is also better. The outer wall of the guide pipe 10 is also welded with a supporting side plate 13, and the side plates 13 are positioned at two sides of the electrode holder 9.
The electrode 1 mounting seat and the cushion block for increasing the strength are welded at the electrode 1 position of the flow guide pipe 10, and the original round-head screw-shaped electrode 1 structural form is changed into the front end
Diameter electrode 1 head, middle
Of cylindrical body, rear end M4 in the form of a thread, in the middle
The cylinder on open and to have 3 grooves of sealing washer, adopt the sealed form of sealing washer 3 sealed, sealed face position changes, changes original to draw formula sealed to screw thread push down formula pressure tight seal, improves the upper limit that bears of pressure, still can realize sealed at 25 MPa's pressure, compare in current packaging structure will reveal when pressure is greater than 10MPa, the upper limit that bears of pressure has obtained very big improvement, solved the unable use or the not good problem of result of use of electromagnetic flowmeter in high pressure occasion. On the basis of changing the structural form of the electrode 1, the sealing form of an O-shaped ring is adopted, so that the structure is simple and reliable; meanwhile, the material of the lining 12 and the lining process of the lining 12 are not changed, the shape of the lining 12 is only changed at the sealing position of the electrode 1, the production difficulty is not increased, the high-pressure sealing of the electrode 1 is realized under the condition of little cost change, and the application occasion of the electromagnetic flowmeter is expanded.
The invention relates to an installation method of a high-voltage electromagnetic flowmeter electrode packaging device, which comprises the following steps:
referring to fig. 2 to 5, the draft tube 10 and the F46 liner 12 are first fabricated.
1. And welding a side plate 13, the electrode cushion block 2 and the electrode seat 9 on the processed guide pipe 10. When welding the electrode 1, the electrode cushion block 2 and the electrode seat 9, the tool is used for positioning, so that the mounting hole position of the electrode 1 on the guide pipe 10 is coaxial with the hole centers of the electrode cushion block 2 and the electrode seat 9.
2. And welding the liner tube 11 with the inner wall of the draft tube 10.
3. F46 liner 12 vulcanization construction, connecting the tool base on the electrode base 9 through screw threads, removing the tool clamp after F46 vulcanization solidification, and completing construction of the draft tube 10 and the F46 liner 12.
Then, the electrode 1 is arranged in a sealing ring 3 and then is placed in a hole of the electrode 1 of the manufactured flow guide pipe 10, an insulating gasket and an insulating sleeve are additionally arranged, an electrode pressing block 8 is screwed in, the electrode 1 is pressed tightly, and then the insulating gasket, a metal gasket 6 and a screw cap 7 are arranged to complete assembly.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (6)
1. The electrode packaging device of the high-voltage electromagnetic flowmeter is characterized by comprising an electrode pressing block (8), a flow guide pipe (10) and an electrode seat (9);
one end of the electrode pressing block (8) is fixedly connected with an electrode seat hole formed in the electrode seat (9), and one end, far away from the electrode pressing block (8), of the electrode seat (9) is fixedly connected with the outer wall of the flow guide pipe (10); one end of the electrode (1) sequentially penetrates through an electrode pressing block hole formed in the electrode pressing block (8) and a flow guide pipe hole formed in the flow guide pipe (10) and extends into the flow guide pipe (10);
an electrode boss is arranged on the electrode (1) in the area between the electrode pressing block (8) and the outer wall of the flow guide pipe (10), and the electrode boss is positioned between the bottom end of the electrode pressing block (8) and the outer wall of the flow guide pipe (10) and is hermetically connected with the outer wall of the flow guide pipe (10);
a lining (12) is arranged between the outer wall of the flow guide pipe (10) and the electrode boss, and the electrode boss is hermetically connected with the lining (12);
the electrode pad (2) is positioned in the lining (12), and one end of the electrode pad (2) is connected with the outer wall of the flow guide pipe (10);
the electrode structure also comprises a sealing ring (3), wherein the sealing ring (3) is positioned in a sealing groove formed in the bottom end of the electrode boss, and the electrode boss is hermetically connected with the lining (12) through the sealing ring (3);
the lining pipe (11) is positioned between the lining (12) and the inner wall of the guide pipe (10), the lining pipe (11) is welded with the inner wall of the guide pipe (10), and a plurality of through holes are formed in the lining pipe (11).
2. The high-pressure electromagnetic flowmeter electrode encapsulation device of claim 1, characterized in that the liner (12) is F46 material.
3. The high-voltage electromagnetic flowmeter electrode packaging device according to claim 1, characterized in that an insulating sleeve (5), a first insulating gasket (4) and a second insulating gasket (41) are further sleeved on the electrode (1); the insulating sleeve (5) is positioned in the electrode pressing block hole, the first insulating gasket (4) is positioned between the electrode boss and the bottom end of the electrode pressing block (8), and the second insulating gasket (41) is positioned above the top end of the electrode pressing block (8).
4. The high-voltage electromagnetic flowmeter electrode packaging device according to claim 1, wherein the electrode (1) is further sleeved with a nut (7), the nut (7) is located above the top end of the electrode pressing block (8), and the electrode (1) and a lead of the electromagnetic flowmeter converter are pressed tightly through the nut (7).
5. The high-voltage electromagnetic flowmeter electrode packaging device according to claim 4, characterized in that a metal gasket (6) is further sleeved on the electrode (1) between the nut (7) and the top end of the electrode pressing block (8).
6. The high-voltage electromagnetic flowmeter electrode packaging device according to claim 1, characterized in that the electrode holder (9) is welded with the outer wall of the flow guide pipe (10), and the electrode pressing block (8) is in threaded connection with the electrode holder hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910697278.1A CN110411523B (en) | 2019-07-30 | 2019-07-30 | High-voltage electromagnetic flowmeter electrode packaging hardware |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910697278.1A CN110411523B (en) | 2019-07-30 | 2019-07-30 | High-voltage electromagnetic flowmeter electrode packaging hardware |
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| CN110411523A CN110411523A (en) | 2019-11-05 |
| CN110411523B true CN110411523B (en) | 2021-02-09 |
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| CN201910697278.1A Active CN110411523B (en) | 2019-07-30 | 2019-07-30 | High-voltage electromagnetic flowmeter electrode packaging hardware |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU202945U1 (en) * | 2020-07-21 | 2021-03-16 | Алексей Анатольевич Воронцов | DEVICE FOR MOUNTING ELECTRIC UNIT OF ELECTROMAGNETIC FLOW METER |
| CN114142710A (en) * | 2021-11-02 | 2022-03-04 | 中国航发沈阳发动机研究所 | Electric energy extraction device in magnetohydrodynamic technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3765407B2 (en) * | 2002-03-11 | 2006-04-12 | 横河電機株式会社 | Electromagnetic flowmeter electrode structure |
| CN202255476U (en) * | 2011-10-28 | 2012-05-30 | 安徽金大仪器有限公司 | Electromagnetic vortex shedding flowmeter |
| DE102013103970B8 (en) * | 2013-04-19 | 2024-09-05 | Endress + Hauser Flowtec Ag | Magnetic-inductive flow meter especially for high pressure applications |
| CN203323806U (en) * | 2013-06-14 | 2013-12-04 | 上海天石测控设备有限公司 | High-pressure electromagnetic flow meter |
| CN107796453A (en) * | 2016-08-31 | 2018-03-13 | 上海诺仪表有限公司 | The high-field electrode structure of high-voltage electromagnetic flowmeter |
| CN208860415U (en) * | 2018-10-26 | 2019-05-14 | 开封仪表有限公司 | The New Electromagnetic Flowmeter of POM electrode |
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