CN204831398U - Bionic -type electromagnetic type vortex flowmeter with ability is strengthened to vortex street - Google Patents
Bionic -type electromagnetic type vortex flowmeter with ability is strengthened to vortex street Download PDFInfo
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- CN204831398U CN204831398U CN201520601632.3U CN201520601632U CN204831398U CN 204831398 U CN204831398 U CN 204831398U CN 201520601632 U CN201520601632 U CN 201520601632U CN 204831398 U CN204831398 U CN 204831398U
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- sprue
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- vortex
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Abstract
An object of the utility model is to provide a bionic -type electromagnetic type vortex flowmeter with ability is strengthened to vortex street, including the sprue, the body takes place for the swirl, the electrode, go up magnet, lower magnet, the body takes place and sets up in the sprue for the swirl, the fixed hollow round pillar cavity in top of sprue, circle pillar cavity's top installation signal processing converter, electrode and last magnet has set gradually in the circle pillar cavity, the electrode passes through the wire and connects the signal processing converter, the tip passes in the sprue wall entering sprue under going up magnet, the below of sprue is fixed with down magnet, the body takes place and sets up between the part in sprue import and last magnet stretch into the sprue for the swirl. The utility model discloses can greatly reduce the resistance to rivers, through the jet orifice and the fluid that flows the right -hand member face with take the recess side to flow through the fluid that comes to be the parastate, can to show the enhancement rate of flow of fluid that lands. The recess of side also more is favorable to droing of vortex street, therefore this swirl takes place the intensity that the swirl can be strengthened to the body.
Description
Technical field
The utility model relates to a kind of flowmeter.
Background technology
Current most of vortex shedding flow meter all uses piezoelectric transducer, and be subject to external vibration interference, affect measuring accuracy, magnetic vortex street flowmeter utilizes electromagnetic induction principle, can overcome the shortcoming that vortex shedding flow meter antijamming capability is weak.In oil water filling field, usually require that flowmeter will have less volume, wider measurement range, and anti-pressure ability that will be higher, and current magnetic vortex street flowmeter volume is on the market all comparatively large, sealing difficulty, requires further improvement.
Summary of the invention
The purpose of this utility model is to provide and solves existing vortex shedder and easily produce a kind of of problem such as horseshoe type whirlpool and vortex frequency, intensity is low and have the biomimetic type magnetic vortex street flowmeter that ability strengthened by vortex street.
The purpose of this utility model is achieved in that
The utility model is a kind of has the biomimetic type magnetic vortex street flowmeter that ability strengthened by vortex street, it is characterized in that: comprise sprue, eddy generator, electrode, upper magnet, lower magnet, eddy generator is arranged in sprue, the cylindrical cavity of hollow is fixed in the top of sprue, signal processing converter is installed in the top of cylindrical cavity, electrode and upper magnet is disposed with in cylindrical cavity, electrode is by wire connection signal process converter, upper magnet bottom enters in sprue through sprue wall, the below of sprue is fixed with lower magnet, eddy generator is arranged on sprue import and upper magnet stretches between the part in sprue.
The utility model can also comprise:
1, described eddy generator is on the basis of tetragonal body vortex shedder, have fish-tail in its leading section, respectively have a concave surface, in its back-end portion in its both sides and have circular groove, the xsect of described concave surface is 1.5 sinusoidal undulations shapes, in eddy generator, jet orifice is set, the two ends of jet orifice lay respectively on fish-tail and circular groove, and jet orifice is parallel with the tangential direction of dextrorotation wave-like trough.
2, the fish-tail part of eddy generator carrys out flow path direction in sprue.
Advantage of the present utility model is: bionical vortex shedder fluoran stream surface of the present utility model has fish-tail, jet orifice is had in groove, greatly can reduce the resistance to current, simultaneously through jet orifice and fluid that the fluid that flows out is come with band groove side surface current in right side is parastate, rate of flow of fluid can be strengthened significantly.Meanwhile, the groove of side is also more conducive to coming off of vortex street, and therefore this eddy generator can strengthen the intensity of whirlpool, has higher Strouhal number.Sr value is higher, then represent when the width measuring velocity in pipes and shedder is fixed, the frequency of Vortex Shedding is higher, namely the vortex come off from shedder in the unit interval is more, for difform shedder, when the fluoran stream surface width of pipe diameter and shedder is fixed, when higher Sr value means that flow is identical, this swirl generating body can isolate more vortex, and this shedder can effectively reduce the flux lower limit that vortex shedding flow meter can be measured.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the cut-open view of the utility model eddy generator;
Fig. 3 is the skeleton view of the utility model eddy generator;
Fig. 4 is sprue inner fluid flow schematic diagram.
Embodiment
Below in conjunction with accompanying drawing citing, the utility model is described in more detail:
Composition graphs 1 ~ 4, in Fig. 1, fluid is flowed into the odd-shaped cross section sprue 10 of band gradual change by the direction of arrow, enter on the left of swirl generating body 7, as shown in Figure 2, a fluid part enters in fish-tail, the right-hand member of this shedder is entered into via the jet orifice in groove, the resistance of shedder convection cell can be reduced, another part comes shedder right-hand member via shedder wave profile, be parallel to each other with through jet orifice fluid out, play the effect of enhance fluid flow velocity, and produce at the concave surface of the right-hand member of this shedder the Karman vortex street be alternately separated, the left and right groove of this shedder also contributes to coming off of whirlpool simultaneously.Vortex street row are when flowing through the magnetic field produced by upper magnet 6 and lower magnet 8, produce electromotive force and to be picked up by electrode 5 and via wire 2 entering signal process converter 1.Lower magnet 8 is fixed by screw thread and main flow 10 by gland 9.Electrode about 5 is equipped with insulation sleeve 12,11 respectively, and enter sprue 10 through the hole of upper magnet 6, electrode upper is fixed by set nut 4,3 outer rings of blocking a shot have and are threaded through screw thread and nut 4 is fixed, insulation sleeve 13 is equipped with in 3 inside of blocking a shot, by block a shot 3 and insulation sleeve 13 wire 2 and electrode 5 are linked together.
Bionical vortex shedder of the present utility model is on the basis of tetragonal body vortex shedder, a fish-tail is opened at fluoran stream surface, four diameters are had to be the jet orifice of φ 5 ~ φ 10mm in groove, the tangential direction of the wave of this jet orifice direction and shedder side outflow end is parallel to each other, on the left and right groove face of symmetrical distribution notch.The tail shape of imitative fish has respectively opened a concave surface in these shedder both sides again simultaneously, becomes 1.5 wave shapes.R60 ~ R100mm circular groove has been opened after this shedder.Jet orifice greatly can reduce the resistance to current, simultaneously through jet orifice and fluid that the fluid that flows out is come with band groove side surface current in right side is parastate, rate of flow of fluid can be strengthened significantly.Meanwhile, the groove of side is also more conducive to coming off of vortex street.Therefore this imitative fish tail type vortex shedder comparatively has larger Strouhal number in commensurateiy wide cylindrical tube, can produce higher vortex street frequency, can improve detectable flux lower limit when commensurateiy wide and flow velocity.
Bionical vortex shedder fluoran stream surface of the present utility model has fish-tail, jet orifice is had in groove, greatly can reduce the resistance to current, simultaneously through jet orifice and fluid that the fluid that flows out is come with band groove side surface current in right side is parastate, rate of flow of fluid can be strengthened significantly.Meanwhile, the groove of side is also more conducive to coming off of vortex street, and therefore this eddy generator can strengthen the intensity of whirlpool, has higher Strouhal number.Sr value is higher, then represent when the width measuring velocity in pipes and shedder is fixed, the frequency of Vortex Shedding is higher, namely the vortex come off from shedder in the unit interval is more, for difform shedder, when the fluoran stream surface width of pipe diameter and shedder is fixed, when higher Sr value means that flow is identical, this swirl generating body can isolate more vortex, and this shedder can effectively reduce the flux lower limit that vortex shedding flow meter can be measured.
Claims (3)
1. one kind has the biomimetic type magnetic vortex street flowmeter that ability strengthened by vortex street, it is characterized in that: comprise sprue, eddy generator, electrode, upper magnet, lower magnet, eddy generator is arranged in sprue, the cylindrical cavity of hollow is fixed in the top of sprue, signal processing converter is installed in the top of cylindrical cavity, electrode and upper magnet is disposed with in cylindrical cavity, electrode is by wire connection signal process converter, upper magnet bottom enters in sprue through sprue wall, the below of sprue is fixed with lower magnet, eddy generator is arranged on sprue import and upper magnet stretches between the part in sprue.
2. a kind of biomimetic type magnetic vortex street flowmeter with vortex street reinforcement ability according to claim 1, it is characterized in that: described eddy generator is on the basis of tetragonal body vortex shedder, have fish-tail in its leading section, respectively have a concave surface, in its back-end portion in its both sides and have circular groove, the xsect of described concave surface is 1.5 sinusoidal undulations shapes, in eddy generator, jet orifice is set, the two ends of jet orifice lay respectively on fish-tail and circular groove, and jet orifice is parallel with the tangential direction of dextrorotation wave-like trough.
3. a kind of biomimetic type magnetic vortex street flowmeter with vortex street reinforcement ability according to claim 2, is characterized in that: the fish-tail part of eddy generator carrys out flow path direction in sprue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601632.3U CN204831398U (en) | 2015-08-11 | 2015-08-11 | Bionic -type electromagnetic type vortex flowmeter with ability is strengthened to vortex street |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601632.3U CN204831398U (en) | 2015-08-11 | 2015-08-11 | Bionic -type electromagnetic type vortex flowmeter with ability is strengthened to vortex street |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204831398U true CN204831398U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520601632.3U Withdrawn - After Issue CN204831398U (en) | 2015-08-11 | 2015-08-11 | Bionic -type electromagnetic type vortex flowmeter with ability is strengthened to vortex street |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204831398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021234A (en) * | 2015-08-11 | 2015-11-04 | 哈尔滨工程大学 | Bionic type electromagnetic vortex street flow meter with vortex street enhancing capacity |
-
2015
- 2015-08-11 CN CN201520601632.3U patent/CN204831398U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021234A (en) * | 2015-08-11 | 2015-11-04 | 哈尔滨工程大学 | Bionic type electromagnetic vortex street flow meter with vortex street enhancing capacity |
| CN105021234B (en) * | 2015-08-11 | 2018-12-07 | 哈尔滨工程大学 | A kind of biomimetic type magnetic vortex street flowmeter for reinforcing ability with vortex street |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20181207 |
|
| AV01 | Patent right actively abandoned |