CN101750122A - Electromagnetic flow meter - Google Patents
Electromagnetic flow meter Download PDFInfo
- Publication number
- CN101750122A CN101750122A CN200810203788A CN200810203788A CN101750122A CN 101750122 A CN101750122 A CN 101750122A CN 200810203788 A CN200810203788 A CN 200810203788A CN 200810203788 A CN200810203788 A CN 200810203788A CN 101750122 A CN101750122 A CN 101750122A
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- China
- Prior art keywords
- lining
- assembly
- electrode
- housing unit
- flow meter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses an electromagnetic flow meter, which comprises a shell assembly, an electrode holder and an electrode assembly. The middle of the shell assembly is provided with a medium passage; the electrode holder is arranged on the outer wall of the shell assembly; the electrode assembly passes through the electrode holder and the shell assembly and extends to the medium passage; and the lower part of the electrode assembly is encircled by a lower lining. A gradual compressing matching structure with a conical outer circle is adopted among the electrode assembly, the lower lining and the shell assembly. Compared with the prior art, the lining structure is removed, and the partial insulation of the lower lining replaces the whole insulation of the lining. Experiment proves that only the strength of the magnetic filed generating body assembly is properly strengthened with the matching magnetic field, the strength and sampling of the flow signal are ensured, and the metering performance is not affected. The flow meter without the lining has the advantages that the cost is reduced, the production cycle is shortened, the assembly technology is simplified, and the flow meter provides the technological approach for the high-voltage, miniaturization and pipe connection diversification of the products.
Description
[technical field]
The present invention relates to the flow-meter of conductive fluid medium metering, detection usefulness, specifically a kind of electromagnetic flowmeter.
[background technology]
Eight most of compositions such as body assembly, converter assembly generally take place by housing unit, lining, electrode tip holder, electrode assemblie, electrode lining, magnetic field in existing electromagnetic flowmeter, wherein lining is the pith and the sign of electromagnetic flowmeter, it also is its cost main composition part, the material of lining adopts rubber or teflon usually, and the effect of lining is to separate insulating fully between electrode, housing unit and the measured medium three.Assembling is complicated but the existence of lining makes electromagnetic flowmeter, requires assembly yield 100% first, does not allow to carry out the secondary assembling; Moreover, have serious environmental in the process of production lining and pollute.
[summary of the invention]
Study by analysis and experiment showed, and find in the existing electromagnetic flowmeter that the way that housing unit and measured medium are insulated fully is unnecessary, the insulation fully here is just in order to stop or in order to reduce the decay in magnetic field, the intensity of assurance signal.Supposing has enough magnetic field intensitys, and also promptly guaranteeing has enough signal intensities, and electrode and housing unit are insulated fully, just can cast out lining structure, can reduce cost and can eliminate above-mentioned defective fully.
Therefore the present invention proposes following technical scheme: a kind of electromagnetic flowmeter, comprise housing unit, electrode tip holder, electrode assemblie, in the middle of the housing unit is medium channel, electrode tip holder is installed in the outer wall of housing unit, it is characterized in that: electrode assemblie passes electrode tip holder and housing unit extends to medium channel, and the electrode assemblie bottom has following lining to surround.
Such scheme compared with the prior art, do not had lining structure, the minor insulation of following lining replaces the integral insulation of lining, experimental results show that the body assembly is suitably strengthened and the intensity in coupling magnetic field as long as magnetic field takes place, the intensity of dependable flow signal and sampling, metering performance is unaffected.Cast out having a lot of advantages of lining acquisition: reduced cost, shortened the production cycle, simplified assembly technology, for product provides technological approaches to high pressure, miniaturization, pipeline connection variation.
[description of drawings]
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an A-A sectional view among Fig. 1.
[embodiment]
Be further described below in conjunction with embodiments of the invention and accompanying drawing thereof.
A kind of electromagnetic flowmeter, comprise housing unit 1, shell body assembly 2, electrode tip holder 4, electrode assemblie 5, in the middle of the housing unit 1 is medium channel 11, the outer wall that body assembly 8, converter assembly 9 and electrode tip holder 4 are installed in housing unit 1 takes place in magnetic field, and shell body assembly 2 contains magnetic field body assembly 8, electrode tip holder 4, electrode assemblie 5 take place outside housing unit 1.These structures all do not have differently with existing electromagnetic flowmeter, and different is that the present invention has saved lining of the prior art, and electrode assemblie 5 passes electrode tip holder 4 and housing unit 1 extends to medium channel 11, and electrode assemblie 5 bottoms have following lining 7 to surround.
Key of the present invention is to guarantee sealing and resistance to pressure, and for this reason, adopting cylindrical between electrode assemblie 5 and the following lining 7 is the progressive fit structure that compresses of circular cone.Adopting cylindrical between following lining 7 and the housing unit 1 too is the progressive fit structure that compresses of circular cone.Further, can also add O RunddichtringO 10 between following lining 7 and the housing unit 1, the longitudinal profile of following lining 7 is generally T-shaped, and the O RunddichtringO 10 that adds preferably places down between lining 7 and housing unit 1 outer wall.
Electrode assemblie 5 tops cover upward lining 6, cover self-locking nut 3 on the electrode tip holder 4, adopt outside high pressure locking device to guarantee insulation, sealing, the withstand voltage properties of the progressive compression fit structure of circular cone between electrode assemblie 5, following lining 7, the housing unit 1.
Claims (6)
1. electromagnetic flowmeter, comprising housing unit, electrode tip holder, electrode assemblie, is medium channel in the middle of the housing unit, and electrode tip holder is installed in the outer wall of housing unit, it is characterized in that: electrode assemblie passes electrode tip holder and housing unit extends to medium channel, and the electrode assemblie bottom has following lining to surround.
2. electromagnetic flowmeter according to claim 1 is characterized in that adopting cylindrical between electrode assemblie and the following lining is the progressive fit structure that compresses of circular cone.
3. electromagnetic flowmeter according to claim 1, adopting cylindrical between lining and the housing unit under it is characterized in that is the progressive fit structure that compresses of circular cone.
4. electromagnetic flowmeter according to claim 1, giving up between lining and the housing unit under it is characterized in that has the O RunddichtringO.
5. electromagnetic flowmeter according to claim 4 is characterized in that the longitudinal profile of lining is T-shaped down, and described O RunddichtringO places down between lining and the housing unit outer wall.
6. according to claim 1,2,3,4 or 5 described electromagnetic flowmeters, it is characterized in that electrode assemblie top covers upward lining, covers self-locking nut on the electrode tip holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810203788A CN101750122A (en) | 2008-12-01 | 2008-12-01 | Electromagnetic flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810203788A CN101750122A (en) | 2008-12-01 | 2008-12-01 | Electromagnetic flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101750122A true CN101750122A (en) | 2010-06-23 |
Family
ID=42477436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810203788A Pending CN101750122A (en) | 2008-12-01 | 2008-12-01 | Electromagnetic flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101750122A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101273A1 (en) * | 2012-12-24 | 2014-07-03 | 上海都华实业有限公司 | Electromagnetic flow sensor with fully insulated integrated measuring tube |
| CN104535124A (en) * | 2014-12-30 | 2015-04-22 | 哈尔滨工业大学 | Underground electromagnetic flow meter of oil field |
-
2008
- 2008-12-01 CN CN200810203788A patent/CN101750122A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101273A1 (en) * | 2012-12-24 | 2014-07-03 | 上海都华实业有限公司 | Electromagnetic flow sensor with fully insulated integrated measuring tube |
| CN104535124A (en) * | 2014-12-30 | 2015-04-22 | 哈尔滨工业大学 | Underground electromagnetic flow meter of oil field |
| CN104535124B (en) * | 2014-12-30 | 2018-01-05 | 哈尔滨工业大学 | Oil field well electromagnetic flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100623 |