CN203011496U - Vortex street flow detection experiment device - Google Patents
Vortex street flow detection experiment device Download PDFInfo
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- CN203011496U CN203011496U CN 201320004596 CN201320004596U CN203011496U CN 203011496 U CN203011496 U CN 203011496U CN 201320004596 CN201320004596 CN 201320004596 CN 201320004596 U CN201320004596 U CN 201320004596U CN 203011496 U CN203011496 U CN 203011496U
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- vortex street
- flow meter
- vortex
- experiment
- street flow
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Abstract
The utility model relates to a vortex street flow detection experiment device which comprises power equipment, a voltage stabilizing device, an electromagnetic flow meter, an experiment pipe section and a rear pipe section that are sequentially connected; the vortex street flow detection experiment device can be used for quantificationally estimating the accuracy of a vortex street flow meter in an experiment so as to help scientific research personnel and engineers to judge the fault of the vortex street flow meter and estimate the pros and cons of the working state of the vortex street flow meter; and therefore, the defects of small application scope, high cost, poor practicality and low detection accuracy in the prior art can be overcome, and the advantages of large application scope, low cost, good practicality and high detection accuracy can be realized.
Description
Technical field
The utility model relates to the flow detection technical field, particularly, relates to a kind of vortex flow measurement experimental provision.
Background technology
At present, teaching and scientific research personnel test with the method that detects flux of vortex street, a kind of is to adopt the normal flow caliberating device, vortex shedding flow meter is demarcated, the shortcoming of the method be high to environmental requirement, charge is high, use the long production scene that is not suitable between target timing.Another is to adopt digital frequency generator alternative sensor signal, access vortex shedding flowmeter signal processing unit, compare the difference of calculated value and gauge outfit displayed value through after a while, calculate the site error accuracy class, but this kind method can only the testing circuit part, can not detect Sensor section, practical significance is little.In realizing process of the present utility model, the inventor finds to exist at least in the experimental situation of prior art that the scope of application is little, expense is high, poor practicability and the defective such as accuracy of detection is low, be unfavorable for obtaining of experimental data, also reduced the serviceable life of experimental provision integral body.
The utility model content
The purpose of utility model is: the deficiency for prior art exists provides a kind of rational in infrastructure, practical vortex flow measurement experimental provision.
For realizing the purpose of the utility model, be achieved by the following technical solutions:
A kind of vortex flow measurement experimental provision is characterized in that, comprises the power-equipment, pressure stabilizing device, electromagnetic flowmeter, experiment pipeline section and the rear pipeline section that connect successively.
Further, described power-equipment comprises the water pump and the frequency converter that are connected successively.
Further, described experiment pipeline section comprises the vortex shedding flow meter, data collecting card and the industrial computer that are connected successively.
Further, described rear pipeline section comprises commutator, work measuring instrument and the tank and the cistern that are connected successively.
Vortex flow measurement experimental provision of the present utility model, by comprising power-equipment, pressure stabilizing device, electromagnetic flowmeter, experiment pipeline section and the rear pipeline section that connects successively, can estimate quantitatively the precision of vortex shedding flow meter in experiment, help scientific research personnel and slip-stick artist to carry out the judgement of vortex shedding flow meter fault, the quality of assessment vortex shedding flow meter duty; Thereby can overcome that in prior art, the scope of application is little, expense is high, poor practicability and the low defective of accuracy of detection, with the advantage that realizes that the scope of application is large, expense is low, practicality is good and accuracy of detection is high.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, and consists of the part of instructions, in order to explain the utility model, does not consist of restriction of the present utility model together with embodiment of the present utility model.
Fig. 1 is vortex flow measurement experimental provision structured flowchart of the present utility model.
Embodiment
The below makes a detailed explanation embodiment of the present utility model with reference to the accompanying drawings.
Vortex flow measurement experimental provision of the present utility model comprises the power-equipment, pressure stabilizing device, electromagnetic flowmeter, experiment pipeline section and the rear pipeline section that connect successively.Described power-equipment comprises the water pump 1 and frequency converter 2 that are connected successively; Described experiment pipeline section comprises the vortex shedding flow meter 5, data collecting card 6 and the industrial computer 7 that are connected successively; Described rear pipeline section comprises commutator 8, work measuring instrument 9 and the tank 10 and the cistern 11 that are connected successively.
Start water pump 1, the water pump 1 of being controlled by frequency converter 2 makes intrasystem water flow for generation of certain pressure reduction, thus water is sent into buffer tank 3 from cistern 11, the water of pressure stability is the electromagnetic flowmeter 4 of 0.2 grade and the vortex shedding flow meter 5 that is used for experiment by the pipeline precision of flowing through, flow back at last tank and enter cistern 11, form a circulation.Control uninterrupted by the aperture that changes frequency converter 2 setting values and control valve 12 in experiment, 4 normal stream values that the water of experiment pipeline section is provided as the normal stream scale of the electromagnetic flowmeter in pipeline.
When moving this system and device experiment, flow forms vortex street after crossing vortex shedder, detecting by piezoelectric sensor pressure cycle that vortex street causes changes and passes through amplifying circuit from the detected vortex signal of piezoelectric probe, gather industrial computer 7 by data collecting card 6 again, in the man-machine interface of industrial computer 7, can preserve data by acquisition system and simple FFT detection analysis, can realize the fault judgement to vortex shedding flow meter, the quality of assessment vortex shedding flow meter duty.
Claims (4)
1. a vortex flow measurement experimental provision, is characterized in that, comprises the power-equipment, pressure stabilizing device, electromagnetic flowmeter (4), experiment pipeline section and the rear pipeline section that connect successively.
2. vortex flow measurement experimental provision according to claim 1, is characterized in that, described power-equipment comprises the water pump (1) and frequency converter (2) that are connected successively.
3. vortex flow measurement experimental provision according to claim 1, is characterized in that, described experiment pipeline section comprises the vortex shedding flow meter (5), data collecting card (6) and the industrial computer (7) that are connected successively.
4. vortex flow measurement experimental provision according to claim 1, is characterized in that, described rear pipeline section comprises commutator (8), work measuring instrument (9) and the tank (10) and the cistern (11) that are connected successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004596 CN203011496U (en) | 2013-01-06 | 2013-01-06 | Vortex street flow detection experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004596 CN203011496U (en) | 2013-01-06 | 2013-01-06 | Vortex street flow detection experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011496U true CN203011496U (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320004596 Expired - Fee Related CN203011496U (en) | 2013-01-06 | 2013-01-06 | Vortex street flow detection experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011496U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994790A (en) * | 2014-04-21 | 2014-08-20 | 成都科创佳思科技有限公司 | Fluid metering device |
| CN105043470A (en) * | 2015-04-30 | 2015-11-11 | 宁波职业技术学院 | Open type flow measurement system device for teaching |
| CN105067089A (en) * | 2015-08-26 | 2015-11-18 | 中核检修有限公司 | Calibration device for turbine flow transmitter |
| CN108168659A (en) * | 2018-03-21 | 2018-06-15 | 合肥科迈捷智能传感技术有限公司 | A kind of vortex-shedding meter intelligent diagnosing method |
| CN108597324A (en) * | 2018-05-03 | 2018-09-28 | 江苏科技大学 | A kind of experimental provision and its operating method for demonstrating Karman vortex street effect |
-
2013
- 2013-01-06 CN CN 201320004596 patent/CN203011496U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994790A (en) * | 2014-04-21 | 2014-08-20 | 成都科创佳思科技有限公司 | Fluid metering device |
| CN103994790B (en) * | 2014-04-21 | 2017-03-22 | 孟雪菲 | Fluid metering device |
| CN105043470A (en) * | 2015-04-30 | 2015-11-11 | 宁波职业技术学院 | Open type flow measurement system device for teaching |
| CN105067089A (en) * | 2015-08-26 | 2015-11-18 | 中核检修有限公司 | Calibration device for turbine flow transmitter |
| CN105067089B (en) * | 2015-08-26 | 2018-05-22 | 中核检修有限公司 | The calibration equipment of turbine flux transmitter |
| CN108168659A (en) * | 2018-03-21 | 2018-06-15 | 合肥科迈捷智能传感技术有限公司 | A kind of vortex-shedding meter intelligent diagnosing method |
| CN108597324A (en) * | 2018-05-03 | 2018-09-28 | 江苏科技大学 | A kind of experimental provision and its operating method for demonstrating Karman vortex street effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140106 |