CN103900645B - Inserting electromagnetic vortex shedding flowmeter - Google Patents
Inserting electromagnetic vortex shedding flowmeter Download PDFInfo
- Publication number
- CN103900645B CN103900645B CN201410120967.3A CN201410120967A CN103900645B CN 103900645 B CN103900645 B CN 103900645B CN 201410120967 A CN201410120967 A CN 201410120967A CN 103900645 B CN103900645 B CN 103900645B
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- China
- Prior art keywords
- electrode
- permanent magnet
- sprue
- flow channel
- main flow
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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 provides an inserting electromagnetic vortex shedding flowmeter comprising a main flow channel member, an upper pressing cover, a lower pressing cover and an electrode. The main flow channel member is in a hollow structure, the outer wall on the upper portion of the main flow channel member is provided with a first mounting groove, the outer wall of the lower portion of the main flow channel member is provided with a second mounting groove, the first mounting groove is provided with an upper permanent magnet, the second mounting groove is provided with a lower permanent magnet, the upper pressing cover and the lower pressing cover are fixed together and coat the upper permanent magnet, the main flow channel member and the second permanent magnet, the upper portion of the electrode is located in the upper pressing cover, the lower end of the electrode penetrates the upper permanent magnet and the main flow channel member and is located in the main flow channel member, an insulation pad is mounted between the electrode and the upper pressing cover, a seal sleeve is mounted between the electrode and the main flow channel member, a signal line mounting hole is formed in the upper pressing cover and is provided with a signal line, and the signal line is connected to the electrode; a triangular prism shape vortex generator is arranged in a main flow channel, and the upper pressing cover is provided with flow inlet holes communicated with the main flow channel. By the aid of the inserting electromagnetic vortex shedding flowmeter, the size can be reduced effectively.
Description
Technical field
The present invention relates to a kind of flow measurement device.
Background technology
Major part vortex-shedding meter all uses piezoelectric transducer at present, is easily disturbed by external vibration, and impact is surveyed
Accuracy of measurement, magnetic vortex street flowmeter utilizes electromagnetic induction principle, can overcome the anti-interference energy of vortex-shedding meter
The shortcoming that power is weak.
In the fields such as oil water filling, need to measure the accurate flow under water injection well, effusion meter be inserted into
Squeezing into down-hole in water injection valve together, the installing space of effusion meter is limited, usually requires that effusion meter to have less
Volume, wider measurement scope, and will be higher anti-pressure ability, and current magnetic vortex street flowmeter
Small-bore it is restricted, requires further improvement.
Common magnetic vortex street flowmeter, is welded and fixed pipe up and down at sprue, to upper lower magnet and electrode
Being fixed, this effusion meter is overall to be unfavorable for being inserted and secured in water injection equipment in cross, and
This fixed form is taken up space relatively big, needs to improve.
Summary of the invention
It is an object of the invention to provide and can solve existing magnetic vortex street flowmeter volume relatively greatly, it is special to measure
A kind of plug-in type electromagnetism vortex-shedding meter of limitation problem during flow in shape space.
The object of the present invention is achieved like this:
One plug-in type electromagnetism vortex-shedding meter of the present invention, is characterized in that: include sprue body, upper press cover,
Lower cover, upper permanent magnet, lower permanent magnet, electrode, in sprue body, portion is hollow structure, sprue
The hollow structure of body constitutes flat key shape sprue, and the outer wall above sprue body arranges the first mounting groove, main flow
Outer wall below road body arranges the second mounting groove, installs permanent magnet in the first mounting groove, the second mounting groove
In lower permanent magnet is installed, upper press cover and lower cover be fixed together and by upper permanent magnet, sprue body,
Lower permanent magnet wraps in inside the space being made up of upper press cover and lower cover, and the top of electrode is positioned in upper press cover,
The bottom of electrode is through upper permanent magnet, sprue body and is positioned in sprue, between electrode and upper press cover
Felt pad is installed, sealing shroud is installed between electrode and sprue body, holding wire installing hole is set in upper press cover,
Arranging holding wire in holding wire installing hole, holding wire connects electrode, arranges triangle cylindricality whirlpool and send out in sprue
Raw body, upper press cover arranges flow-in hole, flow-in hole connection sprue.
The present invention can also include:
1, triangle cylindricality eddy generator is between flow-in hole and electrode.
Present invention have an advantage that the integral type fixed form in the present invention, given up in traditional fixed form
Outside runner, it is welded and fixed pipe, and in fixing pipe, uses nut fixed electrode and the mode of Magnet, but directly
Connecing and be fixed with a gland having fixed step, this fixed form greatly saves fixed space.
The combination of this special cross-section and integral type fixed form can make the volume of effusion meter effectively reduce.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the front view of effusion meter detection part；
Fig. 3 is A-A view；
Fig. 4 is B-B view.
Detailed description of the invention
Illustrate below in conjunction with the accompanying drawings and the present invention be described in more detail:
In conjunction with Fig. 1～4, magnetic vortex street flowmeter of the present invention, by the runner 12 that cross section is flat key shape,
Upper and lower two permanent magnets 4,13, electrode 7, some sealed insulation devices and upper lower cover 9,11 composition.
The profile of effusion meter is identical with installing space, and in the present invention, the profile of effusion meter is one section of annulus, and annulus
Both sides are the semicircles tangent with two circles of composition annulus.
This kind of integrated fixed form, has given up in general fixed form for fixing upper Magnet and the lock of electrode
Jack panel, for the clamp nut of fixed signal line, directly arranges fixed step on upper press cover 9, uses rank
Magnet, electrode and holding wire are fixed by ladder.
Pipeline section in the present invention is flat key shape, relative to the round tube of same homalographic, flat key tee section
, there is the flow field in space, body both sides evenly, vortex in bigger than the diameter length of circular cross-section 2～3 times of length
Coming off more stable, such that it is able to reduce pipeline radial dimension, and above-mentioned integration fixed form coordinates, it is thus achieved that
Less effusion meter caliber and overall volume.
Effusion meter global shape in the present invention is annular, and the both sides of this annulus are and two of composition annulus
The semicircle that circle is tangent.At a certain distance from the inflow end of effusion meter, have 6 along effusion meter outer wall circumference enter
Discharge orifice, has a circuit storehouse the same with effusion meter profile, is provided with along effusion meter tube wall and leads in flow-in hole front end
String holes, connects electrode and circuit storehouse with holding wire, and then extracts and process signal.Test section at effusion meter
Point, and swirl generating body, permanent magnet and the part of electrode are installed, it is bolted by upper lower cover
Carrying out the fixing of vertical direction, horizontal direction is then fixed by the ladder of both sides.
Fluid is entered the flat key shape in Fig. 3 Fig. 4 by six flow-in holes axial along effusion meter outer wall in Fig. 1
Sprue 12, after suitably distance, fluid flowing becomes stable, and now fluid runs into swirl generating body 8,
Producing the stable Karman vortex street alternately separated after there is body, vortex row are through by upper Magnet 4 and lower magnet
During 13 generation magnetic field, vortex cutting magnetic field produces the electromotive force of change, and this electromotive force is picked up by electrode 7, and
Enter circuit storehouse via holding wire 14 to process.Electrode bottom is equipped with sealing shroud 3, and top is lined with felt pad
2 and 5, and carry out compressing and fixing by the fixed step on upper press cover 9.Holding wire 14 passes through upper press cover
On ladder and felt pad 1,2 carry out being pressed abd fixed on electrode 7, holding wire via upper press cover 9 and stream
The holding wire installing hole 6 opened on gauge outer wall enters circuit storehouse.Upper Magnet 4 by the groove of sprue outer wall and
Fixed step on upper press cover 9 carries out the fixing of horizontal direction jointly, and vertical direction has the ladder on upper press cover
It is fixed with the bolt at bolt hole 10.The fixed form of lower magnet 13 and the fixed form of upper Magnet 4
Identical.Upper lower cover carries out the fixing of vertical direction by screw thread, by effusion meter detection part two in Fig. 1
The ladder of side carries out the fixing of horizontal direction.Integrated fixed form in the present invention goes for not similar shape
The upper lower cover of shape is i.e. applicable to various flows gauge profile, different installing spaces, as long as in upper lower cover
Make and can be carried out fixing for ladder that is fixing and that compress and seal.
Claims (2)
1. a plug-in type electromagnetism vortex-shedding meter, is characterized in that: includes sprue body, upper press cover, press down
Lid, upper permanent magnet, lower permanent magnet, electrode, in sprue body, portion is hollow structure, sprue body
Hollow structure constitutes flat key shape sprue, and the outer wall above sprue body arranges the first mounting groove, sprue body
The outer wall of lower section arranges the second mounting groove, installs permanent magnet in the first mounting groove, pacifies in the second mounting groove
Load permanent magnet, upper press cover and lower cover be fixed together and by upper permanent magnet, sprue body, under forever
Magnet wraps in inside the space being made up of upper press cover and lower cover for a long time, and the top of electrode is positioned in upper press cover, electricity
The bottom of pole is through upper permanent magnet, sprue body and is positioned in sprue, pacifies between electrode and upper press cover
Dress felt pad, installs sealing shroud, arranges holding wire installing hole in upper press cover between electrode and sprue body, letter
Arranging holding wire in number line installing hole, holding wire connects electrode, arranges triangle cylindricality vortex and occur in sprue
Body, upper press cover arranges flow-in hole, flow-in hole connection sprue, upper press cover is arranged and is fixed forever
Magnet, the fixed step of electrode.
A kind of plug-in type electromagnetism vortex-shedding meter the most according to claim 1, is characterized in that: triangular prism
Shape eddy generator is between flow-in hole and electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120967.3A CN103900645B (en) | 2014-03-28 | 2014-03-28 | Inserting electromagnetic vortex shedding flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120967.3A CN103900645B (en) | 2014-03-28 | 2014-03-28 | Inserting electromagnetic vortex shedding flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103900645A CN103900645A (en) | 2014-07-02 |
| CN103900645B true CN103900645B (en) | 2017-01-11 |
Family
ID=50992112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410120967.3A Expired - Fee Related CN103900645B (en) | 2014-03-28 | 2014-03-28 | Inserting electromagnetic vortex shedding flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103900645B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2600792Y (en) * | 2003-02-28 | 2004-01-21 | 詹益鸿 | Dismountable integral electromagnetic vortex flowmeter |
| CN2602348Y (en) * | 2003-02-28 | 2004-02-04 | 詹益鸿 | Electromagnetic swirl flowmeater |
| CN1553151A (en) * | 2003-06-01 | 2004-12-08 | 浙江富马仪表有限公司 | Electromagnetic vortex flowmeter |
| US20060266126A1 (en) * | 2005-04-22 | 2006-11-30 | Uwe Pohl | Flow meter |
| CN101738235A (en) * | 2008-11-12 | 2010-06-16 | Abb技术股份公司 | Flowmeter |
| CN201926468U (en) * | 2011-01-30 | 2011-08-10 | 温州大学 | Magnetoelectric vortex shedding flow meter with detachable electrode and vortex generating body |
-
2014
- 2014-03-28 CN CN201410120967.3A patent/CN103900645B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2600792Y (en) * | 2003-02-28 | 2004-01-21 | 詹益鸿 | Dismountable integral electromagnetic vortex flowmeter |
| CN2602348Y (en) * | 2003-02-28 | 2004-02-04 | 詹益鸿 | Electromagnetic swirl flowmeater |
| CN1553151A (en) * | 2003-06-01 | 2004-12-08 | 浙江富马仪表有限公司 | Electromagnetic vortex flowmeter |
| US20060266126A1 (en) * | 2005-04-22 | 2006-11-30 | Uwe Pohl | Flow meter |
| CN101738235A (en) * | 2008-11-12 | 2010-06-16 | Abb技术股份公司 | Flowmeter |
| CN201926468U (en) * | 2011-01-30 | 2011-08-10 | 温州大学 | Magnetoelectric vortex shedding flow meter with detachable electrode and vortex generating body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103900645A (en) | 2014-07-02 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |