CN201335705Y - Electromagnetic flowmeter - Google Patents
Electromagnetic flowmeter Download PDFInfo
- Publication number
- CN201335705Y CN201335705Y CNU200820156362XU CN200820156362U CN201335705Y CN 201335705 Y CN201335705 Y CN 201335705Y CN U200820156362X U CNU200820156362X U CN U200820156362XU CN 200820156362 U CN200820156362 U CN 200820156362U CN 201335705 Y CN201335705 Y CN 201335705Y
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- CN
- China
- Prior art keywords
- lining
- electrode
- assembly
- housing unit
- electromagnetic flowmeter
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
Disclosed is an electromagnetic flowmeter, which comprises a shell assembly, an electrode holder and an electrode assembly; wherein the middle of the shell assembly is provided with a medium channel; 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 channel; and the lower part of the electrode assembly is encircled by a lower bushing. A gradual compressing matching structure with the excircle being the taper is adopted among the electrode assembly, the lower bushing and the shell assembly respectively. Compared with the prior art, the lining structure is removed, and the partial insulation of the lower bushing 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, and the strength and sampling of the flow signal are ensured, the metering performance is not affected. The flowmeter without the lining has the advantages that the cost is reduced, the production cycle is shortened, the assembly technology is simplified, and the flowmeter provides the technological approach for the high-voltage, miniaturization and pipe connection diversification of the products.
Description
[technical field]
The utility model relates to the conductive fluid medium metering, detects the flow-meter of 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.
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.
[summary of the invention]
The purpose of this utility model is to propose a kind of electromagnetic flowmeter that can eliminate above-mentioned defective fully.
Therefore the utility model 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.
Adopting cylindrical between described electrode assemblie and the following lining is the progressive fit structure that compresses of circular cone.
Adopting cylindrical between described lining down and the housing unit is the progressive fit structure that compresses of circular cone.
House has the O RunddichtringO between described lining down and the housing unit.
The longitudinal profile of described lining down is T-shaped, and described O RunddichtringO places down between lining and the housing unit outer wall.
Described electrode assemblie top covers goes up lining, covers self-locking nut on the electrode tip holder.
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 utility model.
Fig. 2 is an A-A sectional view among Fig. 1.
[embodiment]
Be further described below in conjunction with embodiment of the present utility model 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 utility model 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.
The utility model key 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, 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.
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,, it is characterized in that electrode assemblie top covers upward lining, covers self-locking nut on the electrode tip holder according to claim 1,2,3,4 or 5 described electromagnetic flowmeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820156362XU CN201335705Y (en) | 2008-12-01 | 2008-12-01 | Electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820156362XU CN201335705Y (en) | 2008-12-01 | 2008-12-01 | Electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335705Y true CN201335705Y (en) | 2009-10-28 |
Family
ID=41287360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820156362XU Expired - Fee Related CN201335705Y (en) | 2008-12-01 | 2008-12-01 | Electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335705Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034374A (en) * | 2014-06-25 | 2014-09-10 | 吴清漪 | Lining-free electromagnetic flowmeter |
-
2008
- 2008-12-01 CN CNU200820156362XU patent/CN201335705Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034374A (en) * | 2014-06-25 | 2014-09-10 | 吴清漪 | Lining-free electromagnetic flowmeter |
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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 |
Granted publication date: 20091028 Termination date: 20171201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |