CN208704816U - A kind of large-diameter electromagnetic flowmeter - Google Patents
A kind of large-diameter electromagnetic flowmeter Download PDFInfo
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- CN208704816U CN208704816U CN201821634762.7U CN201821634762U CN208704816U CN 208704816 U CN208704816 U CN 208704816U CN 201821634762 U CN201821634762 U CN 201821634762U CN 208704816 U CN208704816 U CN 208704816U
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- excitation mechanism
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Abstract
The utility model discloses a kind of large-diameter electromagnetic flowmeters, the electromagnetic flowmeter includes conduit, flange, lining, shell, electrode, magnetic circuit device, the magnetic circuit device includes magnetic yoke and excitation mechanism, and the magnetic yoke is will be in the uniform spot-welded of silicon steel sheet inside housings circumference；The excitation mechanism is weldingly fixed among square coil by iron core and forms excitation mechanism；There are two the excitation mechanisms, is symmetrically mounted on conduit upper and lower position；The flange is stainless steel hubbed clip-on-welding flange, and conduit is stainless steel pipe；By hubbed clip-on-welding flange and stainless steel pipe erection welding, multilayer multiple tracks fillet weld is formed between flange and conduit；Catheter interior bonds tetrafluoro or rubber lining.The utility model eddy current loss is effectively reduced, and can effectively enhance magnetic field, can precise measurement flow value, and production process is simple and convenient.
Description
Technical field
The utility model relates to a kind of flow measuring apparatus field, in particular to a kind of large-diameter electromagnetic flowmeter.
Background technique
Electromagnetic flowmeter is flow-meter, in process control, flow measurement and storage handover, total trade volume metering
It is widely adopted, is suitable for the industries such as chemical industry, electric power, plumbing, metallurgy.Electromagnetic flowmeter is a kind of application faraday electromagnetism sense
The flowmeter for answering law, in line with make magnetic field rule, equably run through fluid cross-section principle, using non-magnet material production lead
Pipe.Electromagnetic flowmeter is made of terminal box, protecting crust, magnetic circuit system, measurement pipe, electrode etc., and pressure rating is smaller.Traditional electricity
Magnetic flowmeter shell and magnetic yoke have certain limitation in the high environment of some requirements for anticorrosion frequently with common plain carbon steel；It passes
In the magnetic structure of the electromagnetic flowmeter of system, air-gap is larger, and leakage field is larger, and there are eddy current losses；It is some to require bore range
Greatly, the big projects of pressure, common flow meters cannot be met the requirements.
Utility model content
To solve the above problems, the utility model provides a kind of large-diameter electromagnetic flowmeter, electromagnetic flowmeter vortex
Loss reduces, can precise measurement flow value, and production process is simple and convenient.
The technical solution of the utility model is: a kind of large-diameter electromagnetic flowmeter, including conduit, magnetic circuit device, shell, magnetic
Road device is set between conduit and shell, and conduit axial ends is equipped with flange, and assembly electrode, the magnetic circuit fill catheter drive to the left and right
It sets including magnetic yoke and excitation mechanism, the magnetic yoke is the excitation by silicon steel sheet spot welding uniform welding inside housings circumference
Mechanism forms excitation mechanism among rectangle magnet exciting coil by iron core and is fixed on conduit.
Based on the above technical solution, the utility model can also do following improvement:
Further, the iron core material of the excitation mechanism is electrical pure iron；
Further, there are two the excitation mechanism is set, it is symmetrically mounted on conduit upper and lower position；
Further, the flange, conduit, shell are stainless steels, and the flange is hubbed clip-on-welding flange；
Further, the hubbed clip-on-welding flange and stainless steel pipe assemble, and are welded with short arc, weld seam between flange and conduit
Form is fillet weld；
Further, the fillet weld is multilayer multiple tracks fillet weld, and Size of welds K=1.4 δ, δ of fillet weld are conduit thickness
Size；
Further, the lining that the catheter interior has sealing to combine, lining material is tetrafluoro or rubber.
The utility model has the following beneficial effects:
1. the utility model is used as magnetic yoke using the uniform spot welding of the good silicon steel sheet of magnetic conductivity inside housings, it is effectively reduced
Eddy current loss；
2. the utility model uses electrical pure iron to be weldingly fixed among rectangle magnet exciting coil as iron core as excitation mechanism,
Magnetic field can effectively be enhanced, reduce air-gap and leakage field；
3. the utility model high pressure hubbed clip-on-welding flange improves the pressure-bearing grade of electromagnetic flowmeter；
4. the utility model directly fills fillet weld between conduit and flange with weld metal, welding can be effectively reduced and become
Shape, welder are easy to operate.
Detailed description of the invention
Fig. 1 is electromagnetic flowmeter main view described in the utility model
Fig. 2 is electromagnetic flowmeter side view described in the utility model
Fig. 3 is electromagnetic flowmeter housing unit schematic diagram described in the utility model
Wherein: 1, flange；2, conduit；3, shell；4, magnetic yoke；5, magnet exciting coil；6, iron core；7, terminal box；8, lining；9,
Electrode；10, fillet weld.
Specific embodiment
The utility model is further illustrated below in conjunction with Figure of description.
As shown in Figures 1 to 3, a kind of large-diameter electromagnetic flowmeter, including flange 1, conduit 2, shell 3, magnetic circuit device, wiring
Box 7, lining 8, electrode 9,2 axial ends of conduit are equipped with flange 1, and conduit 2 is radially equipped with symmetrical electrode 9, conduit 2
Viscous has lining 8, and magnetic circuit device is set between conduit 2 and shell 3, and magnetic circuit device includes magnetic yoke 4 and excitation mechanism, excitation
Mechanism includes magnet exciting coil 5 and iron core 6, and electrode wires, magnet exciting coil etc. combine in 2 central upper portion position of conduit connection terminal box 7.
The magnetic yoke 4 is uniformly to put silicon steel sheet to be welded in 3 internal circumference of shell, and iron core 6 is fixed on rectangle excitation wire
An excitation mechanism is formed among circle 5, two excitation mechanisms are symmetrically mounted on the position symmetrical above and below of conduit 2, and iron core 6 is electrician
Pure iron；The flange 1, conduit 2, shell 3 are stainless steel materials, and the flange 1 is hubbed clip-on-welding flange, hubbed clip-on-welding flange 1
It is assembled with stainless steel pipe 2, formation fillet weld 10 between flange 1 and conduit 2, multilayer multiple tracks fillet weld seam, fillet weld size K=
1.4 δ, δ are 2 thickness of conduit；Lining 8 is tetrafluoro or rubber.
The process that primarily forms of above-mentioned large-diameter electromagnetic flowmeter is: will not be welded into conduit 2 after stainless steel plate roll bending, and not
The steel high pressure belt neck downhand welding pipe flange 1 that becomes rusty assembles, and is welded with short arc, the welding of multilayer multiple tracks fillet weld 10 is completed, to guarantee to weld
Intensity；The preformed hole of electrode 9, connector, lead is beaten in stainless steel pipe 2；Iron core 6 is symmetrically welded at 2 upper and lower position of conduit；It will
9 component of electrode is mounted on electrode hole, will install fixing assembling after the protection of 5 turn-to-turn dipping lacquer of magnet exciting coil；Tetrafluoro is pasted inside conduit 2
Or rubber lining 8；Silicon steel sheet magnetic yoke 4 is bonded to spot welding uniform welding composition 3 component of shell with Stainless Steel Shell 3；By 3 groups of shell
Part and 2 components welding of conduit guarantee weld seam leakproofness；Electrode wires are worn to terminal box 7 and realize wiring；Complete above-mentioned heavy caliber electricity
The assembling process of magnetic flowmeter.
DN300 and DN500 large-diameter electromagnetic flowmeter is manufactured according to the utility model structure, which produces work
Sequence is simple, and welder is easy to operate, and eddy current loss reduces, and the data of real stream verification show that signal is good, being capable of precise measurement flow
Value.
Here to the description of the utility model and application be it is illustrative, not by the utility model limit value in above-mentioned implementation
In example.For those skilled in the art, under the premise of not departing from the utility model general idea, the utility model can be with
Otherwise, it structure, arrangement, ratio and is realized with other elements, material and component, these all should be considered as practical
Novel protection scope.
Claims (7)
1. a kind of large-diameter electromagnetic flowmeter, it includes conduit, shell, magnetic circuit device, magnetic circuit device be set to conduit and shell it
Between, conduit axial ends is equipped with flange, and catheter drive is equipped with electrode to the left and right, it is characterised in that: the magnetic circuit device includes magnetic
Yoke and excitation mechanism, the magnetic yoke is will be in the uniform spot-welded of silicon steel sheet inside housings circumference；The excitation mechanism is by iron
Core forms excitation mechanism among rectangle magnet exciting coil and is fixed on conduit.
2. large-diameter electromagnetic flowmeter according to claim 1, it is characterised in that: the iron core material of the excitation mechanism is
Electrical pure iron.
3. large-diameter electromagnetic flowmeter according to claim 1, it is characterised in that: there are two the excitation mechanisms, symmetrically
It is mounted on conduit upper and lower position.
4. large-diameter electromagnetic flowmeter according to claim 1, it is characterised in that: the flange, conduit, shell are stainless
Steel, the flange are hubbed clip-on-welding flanges.
5. large-diameter electromagnetic flowmeter according to claim 4, it is characterised in that: the hubbed clip-on-welding flange and stainless steel
Conduit assembly, is welded, weld seam form is fillet weld between flange and conduit with short arc.
6. large-diameter electromagnetic flowmeter according to claim 5, it is characterised in that: the fillet weld is multilayer multiple tracks fillet welding
Seam, Size of welds K=1.4 δ, δ of fillet weld are conduit thickness.
7. large-diameter electromagnetic flowmeter according to claim 1, it is characterised in that: the catheter interior has sealing to combine
Lining, the material of lining are tetrafluoro or rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821634762.7U CN208704816U (en) | 2018-10-09 | 2018-10-09 | A kind of large-diameter electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821634762.7U CN208704816U (en) | 2018-10-09 | 2018-10-09 | A kind of large-diameter electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208704816U true CN208704816U (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821634762.7U Active CN208704816U (en) | 2018-10-09 | 2018-10-09 | A kind of large-diameter electromagnetic flowmeter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260778A (en) * | 2019-07-19 | 2019-09-20 | 华中科技大学无锡研究院 | Chamfering measurement method and device based on electromagnetic principle |
| CN110726451A (en) * | 2019-09-11 | 2020-01-24 | 江苏微浪电子科技有限公司 | Industrial flow meter for multi-directional flow and use method thereof |
-
2018
- 2018-10-09 CN CN201821634762.7U patent/CN208704816U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260778A (en) * | 2019-07-19 | 2019-09-20 | 华中科技大学无锡研究院 | Chamfering measurement method and device based on electromagnetic principle |
| CN110260778B (en) * | 2019-07-19 | 2024-05-17 | 华中科技大学无锡研究院 | Chamfering measurement method and device based on electromagnetic principle |
| CN110726451A (en) * | 2019-09-11 | 2020-01-24 | 江苏微浪电子科技有限公司 | Industrial flow meter for multi-directional flow and use method thereof |
| CN110726451B (en) * | 2019-09-11 | 2021-01-01 | 江苏微浪电子科技有限公司 | Industrial flow meter for multi-directional flow and use method thereof |
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