CN101183019A - Magnetic inductive flowmeter equipped with float flange - Google Patents
Magnetic inductive flowmeter equipped with float flange Download PDFInfo
- Publication number
- CN101183019A CN101183019A CNA2007101812497A CN200710181249A CN101183019A CN 101183019 A CN101183019 A CN 101183019A CN A2007101812497 A CNA2007101812497 A CN A2007101812497A CN 200710181249 A CN200710181249 A CN 200710181249A CN 101183019 A CN101183019 A CN 101183019A
- Authority
- CN
- China
- Prior art keywords
- buret
- flange
- flowmeter
- magnetic inductive
- described magnetic
- 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.)
- Pending
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Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a magnetic inductive flow meter, comprising a burette (1) made of metal. The burette can be embedded into a duct (6) through float flanges (2a and 2b) positioned at the end side, wherein, the float flanges (2a and 2b) work together with a coil-edge section (3) which is formed and molded on the end side of the burette (1).
Description
Technical field
The present invention relates to a kind of flowmeter of magnetic inductive, it has the buret that is made of metal, and described buret can embed in the conduit by distolateral unsteady flange.In addition, the invention still further relates to a kind of method of making this buret.
Background technology
The flowmeter of magnetic inductive is used for measuring the flow value by liquid, pastel and the paste of the conduit system of most of commercial units.Using the prerequisite of the flowmeter of magnetic inductive is that measuring media exists certain minimum conductive capability.The interested flow measurement device of this herein people of allowing is characterised in that its accurate measurement result, wherein can be owing to measurement causes the pressure loss in conduit system.In addition, the flowmeter of magnetic inductive does not have movably or puts in member in the buret, and they are wearing and tearing especially easily.
Allow the interested flowmeter of people can be used for chemical industry, pharmacy, cosmetic industry, municipal water resources management and waste water management, food service industry and similar industry herein.Faraday's electromagnetic induction law is to use the principle of measuring method of the flowmeter of magnetic inductive, and it means, but the conductor induced voltage that in magnetic field, moves.
Use for the measuring technique of utilizing law of nature, conductive MEDIA FLOW is crossed buret, produces magnetic field perpendicular to flow direction in this buret.The voltage of responding in medium is caught by electrode structure.Because the measuring voltage of being obtained is proportional with the average flow velocity of the measuring media that flows, so by the volumetric flow rate of medium-or under the situation of considering density-also can determine its mass rate.
Particularly the buret of the flowmeter of magnetic inductive must have very high stability when commercial Application; The internal diameter of buret is normally several centimetres, and embeds by end flange in the conduit of commercial unit.At this is to realize fixing by screw, so that can remove flowmeter from conduit system in simple mode under repair.
By the known a kind of magnetic induction flowmeter of the same type of DE 10 2,004 053 065 A1, it has the buret of metal, and described buret can be inserted in the conduit system by the flange portion section of end.Buret is provided with the potential electrode in the wall that inserts buret in electrical isolation ground, two ground opposite each other, be used to measure measuring voltage, one of them magnetic element that is arranged on the buret outside equally produces a magnetic field, and described magnetic field is substantially perpendicular to the flow direction orientation of the flow media of conduction to be measured.Buret is provided with the lining of insulation in inside, be used for realizing the electrical isolation of potential electrode and metal buret, to guarantee the validity of measuring principle.The metal buret self is mainly used to guarantee enough mechanical stabilities, and the lining of insulation is just eliminated the conduction shortcoming of metal buret.Buret disclosed herein hereto, distolateral flange portion section and buret one constitute.If buret self is because antirust former reason stainless steel constitutes, then the flange portion section of end is by the rotary cutting manufacturing.The shortcoming of the buret of Zhi Zaoing is meant certainly because the spillage of material that cut produces like this.
Also known by general prior art, the buret of the flowmeter of magnetic inductive is provided with unsteady flange, substitutes above-mentioned mounting flange.The flange that floats just is set on the pipe loosely, refers to buret herein.Usually so-called prewelding crimping to be welded is born actual fixing on buret.If the position of the porous disc of companion flange could be determined in final assembling, then can use this make.Therefore, unsteady flange is provided with the hole, mobilizable disk in buret end formation one.When floating flange when buret at this interested this measuring equipment is used in combination, yes for its shortcoming, and owing to the welding between buret and prewelding crimping, manufacturing cost is quite high.Because implement and need following process at this weld seam to be applied, withstand voltagely in order to give the weld seam claying, so that keep uniform inside surface and outside surface.
Summary of the invention
Therefore the objective of the invention is, a kind of buret of flowmeter of magnetic inductive is provided, described buret is provided with distolateral unsteady flange, can make simply with the coefficient buret of unsteady flange end.
Above-mentioned purpose is passed through to realize by the flowmeter of the magnetic inductive of the feature of claim 1 preamble and characteristic thereof.Aspect manufacture method, this purpose is achieved by claim 7.Each dependent claims provides each favourable improvement of the present invention.
The present invention comprises such know-why, i.e. unsteady flange of She Zhiing and flanging part section acting in conjunction that constitute, moulding on buret is distolateral.
Advantage by solution of the present invention is that the flanging part section of described moulding has replaced at common prewelding crimping.
With by welding the prewelding crimping is set and ensuing following process is compared, reduce manufacturing cost greatly at the forming step of the distolateral manufacturing flanging part of buret section.In by solution of the present invention, need not following process.The flanging part section that constitutes the correspondence supporting of each unsteady flange can be made in single manufacturing step process expeditiously.
Improve measure of the present invention according to one and stipulate that the flange that floats is provided with the recess on the circumference in the interior diameter zone.This recess is used for holding at least in part the flanging part section.Flanging part Duan Buhui stretches out in the sealing surface of the flange that floats thus, therefore can utilize the simple plane seal by the solution of the present invention.Preferred stage concave depth and width decided according to the structure of flanging part section.If it just constitutes the extension of the outer radial of buret end, then the recess of opposed flattened is just enough.If the flanging part section also constitutes the fringe region that rolls (eingerollt) on the other hand, then need on the interior diameter of flange that floats, a relative darker recess be set.In general, the xsect of the xsect of the recess on the circumference and flanging part section is suitable.
About what also can consider be therewith, at least simply the flanging part section rolled, therefore form the profile of a tubulose from xsect.This particular configuration of flanging part section is used for promoting the connective stability of unsteady flange and buret.Yet just enough in most of application scenarios be, the flanging part section is shaped to is at least 90 ° of fringe regions that extend to radially outer, or back-flexing portion is set for the flanging part section, this equally also promotes stable.The feasibility of flanging part section moulding is also relevant with the selection of material certainly.But the material of deep-draw is the best prerequisite that is used to realize roll the crimping of shape.
The stability of buret on longitudinal extension is selected to exert an influence to the material of buret, and what described stability should be with the conduit system of further extension is stable suitable.Uncorruptible steel are particularly suitable for being used for making buret.
But the buret that is made of plastics also be can consider and be favourable, as long as it can satisfy described condition.
The method of buret that is used for the flowmeter of magnetic inductive by manufacturing of the present invention comprises following step: under the situation of considering length crimping (L ngenma β aufschlag), fixed length is downcut the suitable cannula member of length with the finished size of the expectation of buret from the pipe semi-manufacture; Two unsteady flanges are set on the cannula member of fixed length cutting-out; Two end crimpings with cannula member; The flange that floats is navigated on each end as the cannula member of buret.
The order of the method step makes and can produce expeditiously by buret of the present invention.Be noted that at this, before crimping is carried out at the two ends of cannula member, put two unsteady flanges already.Only the method step of crimping needs machine to help.By other method step of the present invention is manual installation steps, but also can finish with machine.
If the pipe semi-manufacture that provide have been the length of expectation, the customized cut-off step of mentioning when then beginning also can be omitted in case of necessity.
According to a measure that improves manufacture method,, embed a seal that between two members, works floating flange before on distolateral each end that navigates to buret.This seal is with pressing solution of the present invention, at first be used for preventing to be present in the corrosion in the material gap between buret and the unsteady flange, also can be used to the sealing duct system in case of necessity, arrive the outside to avoid measuring media to connect through the flange on the flanging part section.
Description of drawings
Elaborate other improvement measure of the present invention below by description of the preferred embodiment of the present invention by accompanying drawing.Wherein:
The pipe semi-manufacture that Fig. 1 fixed length is downcut are used for making buret;
Fig. 2 presses the cannula member of Fig. 1, has the unsteady flange that puts;
Fig. 3 presses the cannula member of Fig. 2, has the end of crimping; With
Fig. 4 presses the buret of Fig. 3, comprises the unsteady flange that is used for assembling, be positioned at conduit system.
Embodiment
According to Fig. 1, the pipe semi-manufacture are the bases of making buret 1.Under the situation of considering the length crimping, become the length of finished size of the expectation of buret 1 managing the semi-manufacture customized cut-off.But buret 1 is made of the steel plate of deep-draw, and its wall thickness is suitable with the wall thickness of the conduit system that (unshowned) further extends.
According to Fig. 2, on the cannula member that fixed length is downcut, put two unsteady flange 2a and 2b, so that be that next manufacturing process is ready with workpiece.
According to Fig. 3, crimpings are realized in two ends to cannula member in the manufacturing process below, and therefore two unsteady flange 2a and 2b no longer can take off from buret 1.In this embodiment, flanging part section 3 constitutes the fringe region that only extends to radially outer, and described fringe region is 90 ° in these longitudinal axis 4s from buret 1 and extends outwardly.
According to Fig. 4, each unsteady flange 2a, 2b have the recess 5a or the 5b of an inner radial of extending on circumference, described recess is used for installing the corresponding flanging part section 3 of buret 1, so that the sealing surface of the flange of the further extension of (only part shown in) of connection-oriented conduit 6 is planes.
List of numerals
1 buret
2 float flanges
3 flanging part sections
4 longitudinal axis
5 recesses
6 conduits
Claims (8)
1. the flowmeter of magnetic inductive, comprise a buret that is made of metal (1), described buret can embed in the conduit (6) by distolateral unsteady flange (2a, 2b), it is characterized in that float flange (2a, 2b) and each one flanging part section (3) acting in conjunction in the distolateral moulding that upward constitutes of buret (1).
2. by the flowmeter of the described magnetic inductive of claim 1, it is characterized in that the flange (2a, 2b) that floats is provided with the recess (5a, 5b) that extends on circumference in the interior diameter zone, be used for installing at least in part the flanging part section (3) of buret (1).
3. by the flowmeter of the described magnetic inductive of claim 1, it is characterized in that, flanging part section (3) constitute extend to radially outer basically and from longitudinal axis (4)s crooked at least 90 ° the fringe region of buret (1).
4. by the flowmeter of the described magnetic inductive of claim 1, it is characterized in that flanging part section (3) is constituted at least simply with rolling, thereby form the profile of a tubulose from xsect.
5. by the flowmeter of the described magnetic inductive of claim 1, it is characterized in that buret (1) is made by uncorruptible steel.
6. by the flowmeter of the described magnetic inductive of claim 5, it is characterized in that buret (1) is made of plastics.
7. make the method be used for by the buret (1) of the flowmeter of each described magnetic inductive of aforesaid right requirement, it is characterized in that following procedure of processing: under the situation of considering the length crimping, fixed length is downcut the suitable cannula member of length with the finished size of the expectation of buret (1) from the pipe semi-manufacture; Two unsteady flanges (2a, 2b) are set on the cannula member of fixed length cutting-out; Two end crimpings with cannula member; The flange (2a, 2b) that will float navigates on each end as the cannula member of buret (1).
8. by the described method of claim 7, it is characterized in that, before on distolateral each end that navigates to buret (1), embed a seal that between two members, works at the flange that will float (2a, 2b).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006054008A DE102006054008B4 (en) | 2006-11-16 | 2006-11-16 | Electromagnetic flowmeter with a measuring tube equipped with loose flanges |
| DE102006054008.5 | 2006-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101183019A true CN101183019A (en) | 2008-05-21 |
Family
ID=39326094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101812497A Pending CN101183019A (en) | 2006-11-16 | 2007-10-25 | Magnetic inductive flowmeter equipped with float flange |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101183019A (en) |
| DE (1) | DE102006054008B4 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008057755B4 (en) * | 2008-11-17 | 2015-12-17 | Krohne Ag | Magnetic-inductive flowmeter |
| DE102011102922A1 (en) * | 2011-05-31 | 2012-12-06 | Hydrometer Gmbh | Seal and housing with such a seal |
| DE102014113408A1 (en) * | 2014-09-17 | 2016-03-17 | Endress + Hauser Flowtec Ag | Method for producing a magneto-inductive flowmeter with a partially reduced cross-section |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE612609C (en) * | 1935-04-29 | Jakob Keulers | Flanged pipe connection | |
| DE3805574C2 (en) * | 1988-02-23 | 1998-04-16 | Fischer & Porter Gmbh | Magnetic-inductive flow sensor |
| DE10340056B4 (en) * | 2003-08-28 | 2005-07-28 | Siemens Flow Instruments A/S | flowmeter |
| DE102004053065B4 (en) * | 2004-11-03 | 2007-11-08 | Abb Patent Gmbh | Electromagnetic flowmeter |
| DE102005003332B4 (en) * | 2005-01-25 | 2009-08-06 | Abb Ag | Magnetic-inductive flowmeter |
-
2006
- 2006-11-16 DE DE102006054008A patent/DE102006054008B4/en not_active Revoked
-
2007
- 2007-10-25 CN CNA2007101812497A patent/CN101183019A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006054008A1 (en) | 2008-05-29 |
| DE102006054008B4 (en) | 2013-11-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080521 |