CN204854830U - Vortex flowmeter with body takes place for efflux bionic -type swirl - Google Patents
Vortex flowmeter with body takes place for efflux bionic -type swirl Download PDFInfo
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- CN204854830U CN204854830U CN201520601631.9U CN201520601631U CN204854830U CN 204854830 U CN204854830 U CN 204854830U CN 201520601631 U CN201520601631 U CN 201520601631U CN 204854830 U CN204854830 U CN 204854830U
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- type groove
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Abstract
An object of the utility model is to provide a vortex flowmeter with body takes place for efflux bionic -type swirl, including the flowmeter body, the body takes place for the swirl, the flowmeter body is installed on the pipeline, the body takes place and sets up in the pipeline for the swirl, the body takes place including the drainage body for the swirl, the triangle pole physique, the drainage body is for opening the halfcylinder massive structure that has V type groove, V type groove is opened and is being drawn the fluidic front end, the both sides in V type groove are the arc structure, it is planar structure to draw the fluidic rear end, set up the through -hole on the drainage body, two terminal surfaces of through -hole be located V type groove respectively and the arc structural, the V type groove face of drainage body front end in to the pipeline incoming flow direction set up, take the triangle pole physique setting of concave surface drawing the fluidic rear, the concave surface interior incoming flow direction of pipeline dorsad sets up, set up the slit between the triangle pole physique and the drainage body. The utility model discloses take place the resistance that the body produced in the time of can alleviateing the liquid flow, the living body of vortex street signal ratio single shot of production is strong, and the SNR is high, and loss of pressure is little, and the flow lower limit is low.
Description
Technical field
The utility model relates to a kind of flowmeter.
Background technology
Along with industrial expansion, the particularly development of petroleum chemical industry, the application of vortex shedding flow meter is becoming more and more universal, the flow of fluid can accurately be measured, the development of industry is played an important role, as the ingredient that vortex shedding flow meter is important, the accuracy of eddy generator on vortex shedding flow meter has important impact, and in prior art, be not well positioned to meet measurement requirement, show: cylindrical shedder comes off, and comparatively to have the on-circular cross-section shedder of fixedly separated point poor for the strength and stability of vortex, and in different pipelines, impact by flow velocity is larger, triangle cylindricality shedder is excessive by the impact of the design of drift angle, and resistance is larger, trapezoidal shedder shortcoming is that structure is loaded down with trivial details, physical dimension is more, the impact of resistance on flow that shedder produces is larger.
Summary of the invention
It is weak that the purpose of this utility model is to provide the existing vortex shedding flow meter shedder vortex signal of solution, the linearity is low, complex structure, a kind of vortex shedding flow meter with jet biomimetic type eddy generator of the problems such as the resistance of convection cell is large, and the flow effect of convection cell is large.
The purpose of this utility model is achieved in that
A kind of vortex shedding flow meter with jet biomimetic type eddy generator of the utility model, comprise flowmeter bodies, eddy generator, flowmeter bodies is arranged on pipeline, eddy generator is arranged in pipeline, it is characterized in that: described eddy generator comprises drainage body, triangular prism body, drainage body is the semicylinder block structure having V-type groove, V-type groove opens the front end at drainage body, the both sides of V-type groove are arcuate structure, the rear end of drainage body is planar structure, drainage body arranges through hole, two end faces of through hole lay respectively on V-type groove and arcuate structure, the V-type groove face drawing fluid front end carrys out flow path direction and arranges in pipeline, triangular prism body with concave surface is arranged on the rear of drainage body, concave surface carrys out flow path direction dorsad in pipeline and arranges, between triangular prism body and drainage body, slit is set.
The utility model can also comprise:
1, the diameter d in drainage body semicylinder block structure cross section is 0.25 times of pipe diameter D, the degree of depth of V-type groove is 0.7 times of d, and through-hole diameter is 0.1 times of d, and the width of slit is 0.1 times of d, the width of triangle cylindricality is d, and the outline line angulation on triangle cylindricality both sides is 60 degree.
Advantage of the present utility model is: the utility model has biomimetic features, jet flow drag reduction principle when imitative earthworm moves in soil, shedder first half has V-shaped groove and jet orifice, the resistance that when can alleviate liquid flow, shedder produces, the vortex signal produced is stronger than single shedder, signal to noise ratio (S/N ratio) is high, and the pressure loss is little, and flux lower limit is low.
Accompanying drawing explanation
Fig. 1 is the structural representation installing eddy generator in pipeline;
Fig. 2 is the structural representation of the utility model eddy generator;
Fig. 3 is the skeleton view of the utility model eddy generator
Fig. 4 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing citing, the utility model is described in more detail:
Composition graphs 1 ~ 4, fluid 1 flows to eddy generator via pipeline 2 by the direction of arrow, fluoran stream surface has V-shaped groove 3, and have evenly distributed conduction hole 4 in V-shaped groove inside, fluid is producing jet in the wings after conduction hole, with the fluid matasomatism outside shedder, change the distribution of shedder surface flow field thus play the resistance reducing shedder convection cell, then through swirl generating body slit 5, the Karman vortex street 7 be alternately separated is produced after in the end flowing through the triangle cylindricality 6 of band concave surface, then measured the flow of fluid according to the frequency of vortex shedding and the relation of rate of flow of fluid by measuring mechanism.
Composition graphs 2 further illustrates the architectural feature of shedder, and first half is half cylindrical structure, and center has V-type groove structure 2, has through hole 1 in inside, and center section is slit 3, and latter half is the triangle cylindricality 4 of band concave surface.
Composition graphs 3 illustrates the structure of flowmeter entirety, and it is anterior that eddy generator 1 is arranged on pipeline 2 internal measurement mechanism 3, and measuring mechanism 3 is arranged on rear side of shedder.Mechanism can reduce the pressure loss of the resistance reduction fluid of shedder convection cell, and the impact of shedder on flow is significantly reduced.
Vortex shedding flow meter eddy generator, its first half is half cylindrical block structure, its diameter d is about 0.25 times of pipe diameter D, V-type groove is had at center position, the degree of depth of V-type groove is 0.7 times of d, the diameter that V-type groove two walls are uniform-distribution with suitable distance by rectangular array is the through hole of 0.1 times of d, quantity and the size in hole change according to the size of shedder, middle with slit, the width of slit is about 0.1 times of first half diameter d, latter half is the triangle cylindricality of band concave surface, its width is d, two sideline angulations are 60 degree.It is characterized in that there is jet biomimetic type structure, utilize jet flow drag reduction technology to alleviate the resistance of shedder convection cell, thus reduce shedder to the impact of fluids within pipes flow.
Claims (2)
1. one kind has the vortex shedding flow meter of jet biomimetic type eddy generator, comprise flowmeter bodies, eddy generator, flowmeter bodies is arranged on pipeline, eddy generator is arranged in pipeline, it is characterized in that: described eddy generator comprises drainage body, triangular prism body, drainage body is the semicylinder block structure having V-type groove, V-type groove opens the front end at drainage body, the both sides of V-type groove are arcuate structure, the rear end of drainage body is planar structure, drainage body arranges through hole, two end faces of through hole lay respectively on V-type groove and arcuate structure, the V-type groove face drawing fluid front end carrys out flow path direction and arranges in pipeline, triangular prism body with concave surface is arranged on the rear of drainage body, concave surface carrys out flow path direction dorsad in pipeline and arranges, between triangular prism body and drainage body, slit is set.
2. a kind of vortex shedding flow meter with jet biomimetic type eddy generator according to claim 1, it is characterized in that: the diameter d in drainage body semicylinder block structure cross section is 0.25 times of pipe diameter D, the degree of depth of V-type groove is 0.7 times of d, through-hole diameter is 0.1 times of d, the width of slit is 0.1 times of d, the width of triangle cylindricality is d, and the outline line angulation on triangle cylindricality both sides is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601631.9U CN204854830U (en) | 2015-08-11 | 2015-08-11 | Vortex flowmeter with body takes place for efflux bionic -type swirl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601631.9U CN204854830U (en) | 2015-08-11 | 2015-08-11 | Vortex flowmeter with body takes place for efflux bionic -type swirl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204854830U true CN204854830U (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520601631.9U Withdrawn - After Issue CN204854830U (en) | 2015-08-11 | 2015-08-11 | Vortex flowmeter with body takes place for efflux bionic -type swirl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204854830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004383A (en) * | 2015-08-11 | 2015-10-28 | 哈尔滨工程大学 | Vortex shedding flowmeter with jet bionic type vortex generating body |
-
2015
- 2015-08-11 CN CN201520601631.9U patent/CN204854830U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004383A (en) * | 2015-08-11 | 2015-10-28 | 哈尔滨工程大学 | Vortex shedding flowmeter with jet bionic type vortex generating body |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20171117 |