CN204043729U - Linerless inner electromagnetic flowmeter - Google Patents
Linerless inner electromagnetic flowmeter Download PDFInfo
- Publication number
- CN204043729U CN204043729U CN201420340480.1U CN201420340480U CN204043729U CN 204043729 U CN204043729 U CN 204043729U CN 201420340480 U CN201420340480 U CN 201420340480U CN 204043729 U CN204043729 U CN 204043729U
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- CN
- China
- Prior art keywords
- measuring guide
- flowmeter
- potential electrode
- field coils
- measuring
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Abstract
The utility model discloses a kind of linerless inner electromagnetic flowmeter, namely the shell of this flowmeter is located at measuring guide outer ring, two potential electrode are symmetrically set in measuring guide tube wall and potential electrode end face and measuring guide inwall are positioned at same plane, two field coils are symmetrically set in measuring guide outer ring and are positioned at shell, two yokes are located in two field coils, two electrical isolation pads are located at measuring guide inwall and are positioned at the periphery of two potential electrode, the cross section orthogonal of the constant cross-section of two field coils and two potential electrode.This flowmeter overcomes the defect that tradition has lining flowmeter, remove flowmeter liner portion, make measured medium directly in measuring guide circulation, and keep flowmeter still to have complete function of measuring, avoid polluting, reducing costs, improve flow meters work reliability.
Description
Technical field
The utility model relates to a kind of linerless inner electromagnetic flowmeter.
Background technology
Electromagnetic flowmeter based on Faraday's electromagnetic induction law design can measure the flow of conducting medium, from last century First electromagnetic flowmeter be developed successfully so far, electromagnetic flowmeter is primarily of the part such as measuring guide, potential electrode, field coil, lining, shell and converter composition.Wherein on the lining inner side that is positioned at measuring guide and flange sealing surface, and directly contact measured medium, its effect prevents induced potential by the short circuit of metal measuring guide tube wall; Lining material mostly is corrosion-resistant, high temperature resistant, anti abrasive rubber, polytetrafluoroethylplastic plastic, pottery etc., and lining is in making process, because relate to chemical products, waste gas, waste water etc. that production run produces cause serious destruction to surrounding enviroment; In use simultaneously, often because the corrosive wear of negative pressure, medium and mechanical damage etc. cause Causing Flowmeter Damages and the phenomenon that cannot repair; In addition, lining directly contacts with measured medium, and as in potable water metrology applications, lining more or less certainly will produce certain pollution to medium, and the application of flowmeter is subject to certain restrictions.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of linerless inner electromagnetic flowmeter, this flowmeter overcomes the defect that tradition has lining flowmeter, remove flowmeter liner portion, measured medium is directly circulated in measuring guide, and keep flowmeter still to have complete function of measuring, avoid polluting, reducing costs, improve flow meters work reliability.
For solving the problems of the technologies described above, the linerless inner electromagnetic flowmeter of the utility model comprises measuring guide, shell, two field coils, two yokes and two potential electrode, described shell is located at described measuring guide outer ring, described two potential electrode are symmetrically set in described measuring guide tube wall and potential electrode end face and measuring guide inwall are positioned at same plane, described two field coils are symmetrically set in described measuring guide outer ring and are positioned at described shell, described two yokes are located in described two field coils, this flowmeter also comprises two electrical isolation pads, described two electrical isolation pads are located at described measuring guide inwall respectively and are positioned at the periphery of described two potential electrode, the constant cross-section of described two field coils and the cross section orthogonal of described two potential electrode.
Further, described two yokes are yokes that high saturated magnetic induction magnetically soft alloy makes.
Because the linerless inner electromagnetic flowmeter of the utility model have employed technique scheme, namely the shell of this flowmeter is located at measuring guide outer ring, two potential electrode are symmetrically set in measuring guide tube wall and potential electrode end face and measuring guide inwall are positioned at same plane, two field coils are symmetrically set in measuring guide outer ring and are positioned at shell, two yokes are located in two field coils, two electrical isolation pads are located at measuring guide inwall respectively and are positioned at the periphery of two potential electrode, the cross section orthogonal of the constant cross-section of two field coils and two potential electrode.This flowmeter overcomes the defect that tradition has lining flowmeter, remove flowmeter liner portion, make measured medium directly in measuring guide circulation, and keep flowmeter still to have complete function of measuring, avoid polluting, reducing costs, improve flow meters work reliability.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of the linerless inner Electromagnetic Flow of the utility model.
Embodiment
As shown in Figure 1, the linerless inner electromagnetic flowmeter of the utility model comprises measuring guide 1, shell 6, two field coils 4, two yokes 5 and two potential electrode 2, described shell 6 is located at described measuring guide 1 outer ring, described two potential electrode 2 are symmetrically set in described measuring guide 1 tube wall and potential electrode 2 end face and measuring guide 1 inwall are positioned at same plane, described two field coils 4 are symmetrically set in described measuring guide 1 outer ring and are positioned at described shell 6, described two yokes 5 are located in described two field coils 4, this flowmeter also comprises two electrical isolation pads 3, described two electrical isolation pads 3 are located at described measuring guide 1 inwall respectively and are positioned at the periphery of described two potential electrode 2, the constant cross-section of described two field coils 4 and the cross section orthogonal of described two potential electrode 2.
Further, described two yokes 5 are yokes that high saturated magnetic induction magnetically soft alloy makes.High saturated magnetic induction magnetically soft alloy is the soft magnetic material of saturation induction density the highest (Bs=2.45T), the various permeability magnetic materials worked under being mainly used as high magnetic strength, greatly can improve output power, reduce weight simultaneously, be suitable for manufacturing the iron core worked at relatively high temperatures, the yoke adopting this material to make adds the magnetic flux density in measuring guide, thus improves metering performance and the precision of this flowmeter.
Measuring guide 1 two ends of this flowmeter arrange flange 11 respectively, be convenient to be connected with measuring media pipeline, by the terminal box 12 being located at shell 6, measuring-signal is delivered to converter to process, and show the real-time traffic of measured medium, and be converted to operable signal etc. in commercial production and be transferred to host computer; This flowmeter adopts electrical isolation pad 3 to replace the lining of conventional flow meters, guarantee that potential electrode 2 contacts with tested conducting medium and insulate between potential electrode 2 and measuring guide 1, faraday's electromagnetic induction principle is used to produce induction electromotive force, the miscellaneous part of flowmeter then cannot contact measured medium, avoid producing loop between potential electrode 2, medium and measuring guide 1, thus play the effect of lining in conventional flow meters equally; This electrical isolation pad 3 only needs the periphery being covered in potential electrode 2, and covers whole inwalls of measuring guide without the need to lining in conventional flow meters, greatly simplify the assembling process of electromagnetic flowmeter, reduces production cost.
This linerless inner electromagnetic flowmeter changes traditional electrical magnetic flowmeter structure, reduce the manufacturing cost of nearly 30%, in the fabrication process, significantly reduce the use of lining material, in energy-saving and emission-reduction, environmental protection, food security etc., produce positive prograding simultaneously; Omitting of lining processing link, can better the consistance of guaranteed flow meter in machining, improve the reliability of body; In the middle of use, eliminate medium to the wearing and tearing of lining, corrosion, avoid negative pressure in operating condition design and, on the impact etc. of lining, the serviceable life of flowmeter can be extended largely.
Claims (2)
1. a linerless inner electromagnetic flowmeter, comprise measuring guide, shell, two field coils, two yokes and two potential electrode, described shell is located at described measuring guide outer ring, described two potential electrode are symmetrically set in described measuring guide tube wall and potential electrode end face and measuring guide inwall are positioned at same plane, described two field coils are symmetrically set in described measuring guide outer ring and are positioned at described shell, described two yokes are located in described two field coils, it is characterized in that: also comprise two electrical isolation pads, described two electrical isolation pads are located at described measuring guide inwall and are laid respectively at the periphery of described two potential electrode, the constant cross-section of described two field coils and the cross section orthogonal of described two potential electrode.
2. linerless inner electromagnetic flowmeter according to claim 1, is characterized in that: described two yokes are yokes that high saturated magnetic induction magnetically soft alloy makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340480.1U CN204043729U (en) | 2014-06-25 | 2014-06-25 | Linerless inner electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340480.1U CN204043729U (en) | 2014-06-25 | 2014-06-25 | Linerless inner electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204043729U true CN204043729U (en) | 2014-12-24 |
Family
ID=52244382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420340480.1U Expired - Fee Related CN204043729U (en) | 2014-06-25 | 2014-06-25 | Linerless inner electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204043729U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034374A (en) * | 2014-06-25 | 2014-09-10 | 吴清漪 | Lining-free electromagnetic flowmeter |
| CN107228691A (en) * | 2017-07-28 | 2017-10-03 | 南通德高环境监测技术有限公司 | A kind of electromagnetic flowmeter |
| CN108663092A (en) * | 2018-06-19 | 2018-10-16 | 上海杉达学院 | Eight pairs of electrode unlined electromagnetic flow transducers of one kind and dynamic feedback adjustment method |
-
2014
- 2014-06-25 CN CN201420340480.1U patent/CN204043729U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034374A (en) * | 2014-06-25 | 2014-09-10 | 吴清漪 | Lining-free electromagnetic flowmeter |
| CN107228691A (en) * | 2017-07-28 | 2017-10-03 | 南通德高环境监测技术有限公司 | A kind of electromagnetic flowmeter |
| CN108663092A (en) * | 2018-06-19 | 2018-10-16 | 上海杉达学院 | Eight pairs of electrode unlined electromagnetic flow transducers of one kind and dynamic feedback adjustment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20160625 |