CN213632254U - Vortex double generator for vortex street flowmeter - Google Patents
Vortex double generator for vortex street flowmeter Download PDFInfo
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- CN213632254U CN213632254U CN202023081714.XU CN202023081714U CN213632254U CN 213632254 U CN213632254 U CN 213632254U CN 202023081714 U CN202023081714 U CN 202023081714U CN 213632254 U CN213632254 U CN 213632254U
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Abstract
The utility model discloses a novel two generators of vortex street flowmeter swirl, including body, recess, cross the discharge orifice, wide rectangle passageway, two generators A of swirl, slit, two generators B of swirl and scrape the strip, the body is the circular shape cylinder for the cross section, the recess sets up in the top of body, cross the discharge orifice and set up on the recess, wide rectangle passageway sets up in the inside of body, two generators A of swirl set up in the inside of body, the slit sets up between two generators A of swirl, the two generators B of swirl, two generators B of swirl set up inside the body, scrape the vertical face side subsides perpendicular and fix the one side at wide rectangle passageway with the body left and right sides terminal surface is parallel of strip top-down. The utility model discloses be provided with the two vocal body structures of slit structure, the fluid gets into the slit and can form the swirl under the effect of blowing and sucking, and the stability of effectual improvement swirl frequency adopts two emergence bodies to have the slit simultaneously, reduces the vortex, effectively reduces the initial motion and flows.
Description
Technical Field
The utility model relates to an instrument and meter technical field, specific novel vortex shedding flowmeter swirl double-generator that says so.
Background
The vortex shedding flowmeter, which is a novel speed type flowmeter, has been rapidly developed since the 60 s of the 20 th century, is widely applied to flow measurement of liquid, gas and steam, and utilizes the karman vortex shedding measurement principle to measure the flow of fluid by detecting the frequency of vortex generated after the fluid flows through a vortex generator. Therefore, the quality of the vortex signal in the measurement becomes the key of the measurement. However, the quality of the swirl signal is mainly viewed in two aspects: strength and stability. Research shows that the ideal vortex generating body has sharp edges to ensure stable separation of vortex signals and can generate strong vortex signals. The vortex generating body of the vortex shedding flowmeter is mainly in a cylindrical, triangular, trapezoidal, rectangular and other single generating body structure, a transmission structure is single, high-strength vortex shedding signals cannot be generated, and the corresponding initial flow rate is quite high and poor in stability.
In summary, in view of the defects in the prior art, we propose a new vortex shedding flowmeter vortex double-generator, so as to solve the above mentioned problems.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a two emergence bodies of novel vortex shedding flowmeter swirl.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: the utility model provides a novel two generators of vortex street flowmeter swirl, includes body, recess, cross discharge orifice, wide rectangle passageway, two generators A of swirl, slit, the two generators B of swirl and scrapes the strip, the body is the circular shape cylinder for the cross section, the recess sets up in the top of body, cross the discharge orifice and set up on the recess, wide rectangle passageway sets up in the inside of body, two generators A of swirl set up in the inside of body, the slit sets up between two generators A of swirl, the two generators B of swirl, two generators B of swirl set up inside the body, it is perpendicular and fix the one side at wide rectangle passageway to scrape the vertical face side subsides parallel with the left and right end face of strip top-down.
The vortex shedding flowmeter vortex double-generator is characterized in that: the body is a hollow cylinder fixed wall, and the fixed wall surface is of a non-slip structure under the shearing condition.
The vortex shedding flowmeter vortex double-generator is characterized in that: the axis of the wide rectangular channel vertically penetrates through the side, deviated from the center, of the upper surface and the lower surface of the body.
The vortex shedding flowmeter vortex double-generator is characterized in that: the vortex double-generating body A is arranged into a semicircular column structure.
The vortex shedding flowmeter vortex double-generator is characterized in that: the vortex double-generator B is arranged into a trapezoidal column structure.
The vortex shedding flowmeter vortex double-generator is characterized in that: the setting width range of the slit is 1mm-2.1 mm.
The vortex shedding flowmeter vortex double-generator is characterized in that: the scraping strip is a long strip-shaped stainless steel sheet.
The utility model has the advantages that: this kind of novel vortex shedding flowmeter vortex double occurrence body is provided with the two sound generating body structures of slit structure, and the fluid gets into the slit and can form the vortex under the effect of blowing and sucking, and the stability of effectual improvement vortex frequency, the doctor-bar structure of usable setting carry out cleaing away of sound generating body surface impurity, adopt double occurrence body to have the slit simultaneously, reduce the vortex, effectively reduce the initial flow.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
FIG. 2 is a cross-sectional view of the top view of the present invention;
FIG. 3 is a rear D-D view of the present invention;
FIG. 4 is a front view of the present invention in the form of a C-C;
FIG. 5 is a top view of the present invention taken from E-E;
fig. 6 is a cross-sectional view of the left viewing angle of the present invention.
In the figure: the device comprises a body 1, a groove 2, an overflow hole 3, a wide rectangular channel 4, vortex double generators A and 6 slits 5, and vortex double generators B and 8 scraping strips 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-6, a novel vortex shedding flowmeter vortex double-generator comprises a body 1, a groove 2, an overflow hole 3, a wide rectangular channel 4, a vortex double-generator a5, a slit 6, a vortex double-generator B7 and a scraping strip 8, wherein the body 1 is a cylinder with a circular cross section, the groove 2 is arranged at the top of the body 1, the overflow hole 3 is arranged on the groove 2, the wide rectangular channel 4 is arranged inside the body 1, the vortex double-generator a5 is arranged inside the body 1, the slit 6 is arranged between the vortex double-generator a5 and the vortex double-generator B7, the vortex double-generator B7 is arranged inside the body 1, and the scraping strip 8 is vertically attached to a surface parallel to the left and right end faces of the body 1 from top to bottom and is fixed on one side of the wide rectangular channel 4.
The utility model discloses in:
as the utility model discloses an optimized technical scheme, body 1 sets up to the solid wall of hollow cylinder, and its solid wall shearing condition sets up to no sliding structure, the stable equipment of being convenient for.
As an optimal technical scheme of the utility model, the skew positive center one side of body 1 upper and lower surface is passed perpendicularly to wide rectangular channel 4's axis, and wherein wide rectangular channel 4's simple structure is convenient for maintain for the swirl signal detection becomes easy.
As an optimized technical scheme of the utility model, two shedder A5 of swirl set up to semi-circular column structure, and two shedder B7 of swirl set up to trapezoidal column structure, and two shedder A5 of swirl and two shedder B7 of swirl form two bluff body structures.
As an optimal technical scheme of the utility model, slit 6 sets up the width scope and is 1mm-2.1mm, and slit 6's width has the influence to vortex street intensity, in 1mm-2.1 mm's width peak interval, can guarantee that vortex street intensity continuously is located the reinforcing level, is convenient for improve flow field stability.
As an optimized technical proposal of the utility model, the scraping strip 8 is a long strip-shaped stainless steel sheet, and the surface impurities of the vortex double-generator A5 and the vortex double-generator B7 are removed under the action of the scraping strip 8.
The utility model discloses a theory of operation is: when the vortex shedding flowmeter is used, the body 1 is installed on the vortex shedding flowmeter, the liquid generates vortex when flowing through the body 1 and the connecting slit 6 of the vortex double-generator A5 and the vortex double-generator B7, the wide rectangular channel 4 has a blowing and sucking effect on the vortex generated by the slit 6, the stability of a flow field is further improved, the strengthening and separation of the vortex on two sides of the vortex double-generator A5 and the vortex double-generator B7 can be promoted, and the measurement precision of the vortex shedding flowmeter is improved in an auxiliary mode. The utility model discloses be provided with the two vocal body structures of slit structure, the fluid gets into the slit and can form the swirl under the effect of blowing and sucking, the stability of effectual improvement swirl frequency, and the doctor-bar structure of usable setting carries out cleaing away of vocal body surface impurity, adopts two emergence bodies to have the slit simultaneously, reduces the vortex, effectively reduces the initial flow.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a novel two shedder of vortex street flowmeter swirl, includes body (1), recess (2), overflowing hole (3), wide rectangle passageway (4), two shedder A of swirl (5), slit (6), two shedder B of swirl (7) and scrape strip (8), its characterized in that: the body (1) is the circular shape cylinder for the cross section, recess (2) set up in the top of body (1), cross discharge orifice (3) and set up on recess (2), wide rectangle passageway (4) set up in the inside of body (1), the two shedder A of swirl (5) set up in the inside of body (1), slit (6) set up between two shedder A of swirl (5), the two shedder B of swirl (7) set up in body (1) inside, scrape the vertical face side subsides perpendicular and fix the one side at wide rectangle passageway (4) of terminal surface about vertical and body (1) of strip (8) top-down.
2. The vortex shedding flowmeter vortex double-generator as claimed in claim 1, wherein: the body (1) is a hollow cylinder fixed wall, and the fixed wall surface shearing condition is a non-slip structure.
3. The vortex shedding flowmeter vortex double-generator as claimed in claim 1, wherein: the axis of the wide rectangular channel (4) vertically penetrates through the side, deviated from the center, of the upper surface and the lower surface of the body (1).
4. The vortex shedding flowmeter vortex double-generator as claimed in claim 1, wherein: the vortex double-generator A (5) is arranged in a semicircular column structure.
5. The vortex shedding flowmeter vortex double-generator as claimed in claim 1, wherein: the vortex double-generator B (7) is arranged into a trapezoidal column structure.
6. The vortex shedding flowmeter vortex double-generator as claimed in claim 1, wherein: the width range of the slit (6) is 1mm-2.1 mm.
7. The vortex shedding flowmeter vortex double-generator as claimed in claim 1, wherein: the scraping strip (8) is a long strip-shaped stainless steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023081714.XU CN213632254U (en) | 2020-12-18 | 2020-12-18 | Vortex double generator for vortex street flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023081714.XU CN213632254U (en) | 2020-12-18 | 2020-12-18 | Vortex double generator for vortex street flowmeter |
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| CN213632254U true CN213632254U (en) | 2021-07-06 |
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| CN202023081714.XU Active CN213632254U (en) | 2020-12-18 | 2020-12-18 | Vortex double generator for vortex street flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485814A (en) * | 2022-02-22 | 2022-05-13 | 江苏华尔威科技集团有限公司 | High-precision balance channel flowmeter |
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2020
- 2020-12-18 CN CN202023081714.XU patent/CN213632254U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485814A (en) * | 2022-02-22 | 2022-05-13 | 江苏华尔威科技集团有限公司 | High-precision balance channel flowmeter |
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