CN202648712U - Vortex shedding flow meter of strong vortex generator - Google Patents
Vortex shedding flow meter of strong vortex generator Download PDFInfo
- Publication number
- CN202648712U CN202648712U CN 201220255806 CN201220255806U CN202648712U CN 202648712 U CN202648712 U CN 202648712U CN 201220255806 CN201220255806 CN 201220255806 CN 201220255806 U CN201220255806 U CN 201220255806U CN 202648712 U CN202648712 U CN 202648712U
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- vortex
- strong
- swirl generating
- vortex generator
- generating body
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- Expired - Fee Related
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Abstract
The utility model discloses a vortex shedding flow meter of a strong vortex generator. The strong vortex generator is mounted inside a shell (1) of the vortex shedding flow meter; the strong vortex generator comprises a first vortex generator (2), a second vortex generator (3) and a third vortex generator (4); the three vortex generators are arranged in the shell (1) in sequence along a flow direction; the first vortex generator (2) uses a rectangular post; the second vortex generator (3) uses a trapezoid post; and the third vortex generator (4) uses a triangular post. The vortex shedding flow meter of the strong vortex generator provided by the utility model uses the strong vortex generator; the strong vortex generator is formed by combining three vortex generators; the three vortex generators have synergistic effects; the Strouhal number constancy is higher; the vortex is stronger and more stable; the resistance coefficient is small; the accuracy and repeatability of the measurement can be improved; and the application range of the vortex measurement can be expanded.
Description
Technical field
The utility model relates to vortex shedding flow meter, is specifically related to the strong swirl generating body of vortex shedding flow meter.
Background technology
Vortex shedding flow meter is a kind of fluid oscillation flowmeter that the seventies grows up, be to utilize " Karman vortex street " measuring principle, try to achieve the fluid total volume that flows through in a period of time interval by test fluid through the vortex number (being vortex frequency) that the swirl generating body place produces.
Existing market vortex shedding flow meter swirl generating body adopts cylinder, triangle column type etc., it is shaped as single cylinder, although also can produce for detection of Vortex Shedding, move and the vortex wake confusion phenomena with the Reynolds number of fluid but also exist vortex shedding frequency, produce easily the shortcomings such as distortion or disappearance.This wake flow confusion phenomena produces retroactive effect to alternately generating of vortex again, makes vortex shedding frequency depart from ideal situation, and the result has affected precision and the repeatability of swirl flowmeter, has hindered vigorously promoting the use of it.
Summary of the invention
The purpose of this utility model is: the vortex shedding flow meter that a kind of strong swirl generating body is provided, can control vortex in swirl generating body axis direction separated in synchronization, produce strong vortex street, improve the signal to noise ratio (S/N ratio) of vortex signal, make the fluid-velocity survey lower limit obtain larger expansion, in wider reynolds number range, stable vortex burble point is arranged, keep constant Strouhal number, shock resistance is strong, enlarges the range of application of vortex shedding flow meter.
Technical solution of the present utility model is: strong swirl generating body is installed in the housing of vortex shedding flow meter, and described strong swirl generating body comprises the first swirl generating body, the second swirl generating body and the 3rd swirl generating body,
Three swirl generating bodies are arranged sequentially in flowmeter shell along flow direction, and the first swirl generating body adopts rectangular column, and the second swirl generating body adopts trapezoidal column, and the 3rd swirl generating body adopts triangular prism.
The utility model adopts strong swirl generating body, strong swirl generating body is combined by three swirl generating bodies, synergy, the Sr constancy is higher, vortex is stronger, more stable, resistance coefficient is little, has improved accuracy and the repeatability measured, has enlarged the range of application of vorticism's measurement amount.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1 housing, 2 first swirl generating bodies, 3 second swirl generating bodies, 4 the 3rd swirl generating bodies.
Embodiment
As shown in Figure 1, the strong swirl generating body of housing 1 interior installation at vortex shedding flow meter, described strong swirl generating body comprises the first swirl generating body 2, the second swirl generating body 3 and the 3rd swirl generating body 4, three swirl generating bodies are arranged sequentially in housing 1 along flow direction, the first swirl generating body 2 adopts rectangular column, the second swirl generating body 3 adopts trapezoidal column, and the 3rd swirl generating body 4 adopts triangular prism.
Claims (1)
1. the vortex shedding flow meter of strong swirl generating body, it is characterized in that: strong swirl generating body is installed in the housing (1) of vortex shedding flow meter, described strong swirl generating body comprises the first swirl generating body (2), the second swirl generating body (3) and the 3rd swirl generating body (4), three swirl generating bodies are arranged sequentially in housing (1) along flow direction, the first swirl generating body (2) adopts rectangular column, the second swirl generating body (3) adopts trapezoidal column, and the 3rd swirl generating body (4) adopts triangular prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255806 CN202648712U (en) | 2012-06-01 | 2012-06-01 | Vortex shedding flow meter of strong vortex generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255806 CN202648712U (en) | 2012-06-01 | 2012-06-01 | Vortex shedding flow meter of strong vortex generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648712U true CN202648712U (en) | 2013-01-02 |
Family
ID=47417807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220255806 Expired - Fee Related CN202648712U (en) | 2012-06-01 | 2012-06-01 | Vortex shedding flow meter of strong vortex generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202648712U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068370A (en) * | 2018-01-22 | 2019-07-30 | 西卡西伯特博士及屈恩有限及两合公司 | Flowmeter |
| CN112525272A (en) * | 2019-09-17 | 2021-03-19 | Abb瑞士股份有限公司 | Vortex street flowmeter |
-
2012
- 2012-06-01 CN CN 201220255806 patent/CN202648712U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068370A (en) * | 2018-01-22 | 2019-07-30 | 西卡西伯特博士及屈恩有限及两合公司 | Flowmeter |
| CN112525272A (en) * | 2019-09-17 | 2021-03-19 | Abb瑞士股份有限公司 | Vortex street flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU HENGHE GROUP CO., LTD. Free format text: FORMER NAME: JIANGSU HENGHE AUTOMATIC CONTROL EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 211600 No. 359 Shenhua Road, Jinhu Economic Development Zone, Jiangsu, Huaian Patentee after: Jiangsu Henghe Group Co., Ltd. Address before: 211600 No. 359 Shenhua Road, Jinhu Economic Development Zone, Huaian, Jiangsu, Huaian Patentee before: Jiangsu Henghe Automatic Control Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150601 |
|
| EXPY | Termination of patent right or utility model |