CN2715117Y - Dual-detection vortex flow meter - Google Patents
Dual-detection vortex flow meter Download PDFInfo
- Publication number
- CN2715117Y CN2715117Y CN 200420027123 CN200420027123U CN2715117Y CN 2715117 Y CN2715117 Y CN 2715117Y CN 200420027123 CN200420027123 CN 200420027123 CN 200420027123 U CN200420027123 U CN 200420027123U CN 2715117 Y CN2715117 Y CN 2715117Y
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- vortex
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- eddy generator
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Abstract
The utility model relates to a vortex (vortex street) flowmeter which comprises a vortex flow sensor and a flow integrating instrument. The vortex flow sensor is composed of a sensor meter body (1), a columnar vortex generating body (2) and a detecting probe. The axial line of the vortex generating body (2) and the axial line of a fluid flow-passage are vertically arranged at the middle of the fluid flow passage of the meter body. The pipe walls of the flow passage of the both sides outside a plane are provided with a force sensing head with a sensitive type end face. The lower reach of the stream surface of the vortex generating body (2), the axial line of the vortex generating body (2) and the axial line of the fluid flow-passage are in the plane. The sensitive end face of the force sensing head orientates to the flow passage and is in contact with the medium. The utility model is characterized in that the pipe wall of the flow passage is provided with two force sensing heads (3) which respectively detect the two vortex signals whose phases are opposite. The utility model not only has the characteristics of simple structure, convenient manufacture and preferable capability of the vortex flow meter, but also has the advantages of good vibration resistance, wide measuring range and good adaptability.
Description
Technical field
The utility model relates to flowmeter, refers in particular to the Scroll-tupe flowmeter.
Background technology
Flowmeter is used very extensive in oil, chemical industry, is used to measure the volumetric flow rate as oil, rock gas, steam.The current flow that uses both at home and abroad is in respect of multiple, as positive displacement, vane-wheel type flowmeter, electromagnetic flowmeter and ultrasonic flow meter, but all have defective separately, and vortex flowmeter is because of its superior performance, simple in structure so widespread use at home and abroad, but, had a strong impact on the detection performance and the scope of application of flowmeter because the detector sensitivity height is subjected to the interference of pipeline vibration and the fluctuation of pipe internal pressure easily.
Summary of the invention
The purpose of this utility model provides that a kind of both to have kept vortex flowmeter simple in structure, is convenient to make, the characteristics of superior performance have again that vibration resistance is strong, measurement range is wide, adaptable whirlpool (vortex street) flowmeter.
The purpose of this utility model is achieved in that two vortex flowmeters that detect, comprise the vortex flow sensor, flow integrator, the vortex flow sensor is by the sensor sheet body, the column eddy generator, detection probe is formed, eddy generator axis and fluid course axis are located at the centre of table body fluid course perpendicularly, described eddy generator fluoran stream surface downstream, the runner tube wall of both sides is provided with and detects the hole outside eddy generator axis and the fluid course axis plane of living in, detect and be provided with the quick sensing head composition of end face responsive type power detection probe in the hole, its responsive end face contacts with medium, it is characterized in that: described runner tube wall is provided with two detection holes and the quick sensing head of power detects two opposite whirlpool signals of phase place respectively.
As improvement of the present utility model, it is characterized in that: described two quick sensing heads of power are separately positioned on the runner tube wall of eddy generator axis and both sides, fluid course axis plane of living in.
As further improvement of the utility model, it is characterized in that: it is characterized in that: described two quick sensing heads of power are arranged on the same distolateral runner tube wall of column eddy generator.
Further improve as of the present utility model, it is characterized in that: the quick sensing head central shaft of described two power is arranged in parallel.
Further improve as of the present utility model, it is characterized in that: described two quick sensing heads of power are arranged on the runner tube wall of eddy generator axis and the same side, fluid course axis plane of living in, runner distance between two quick sensing heads of power equals 0.5L, and wherein L is the spacing between the whirlpool.
Further improve as of the present utility model, it is characterized in that: it is characterized in that: the distance between described detection hole and the fluoran stream surface is 0.2D～0.6D, and wherein D is the fluid course latus rectum.
Further improve as of the present utility model, it is characterized in that: the quick sensing head of described end face responsive type power is piezoelectric type or condenser type detection probe.
The utility model is owing to adopted two quick sensing heads of end face responsive type power, and by selection to the installation site, normal flow signal phase place on two quick sensing heads of end face responsive type power is opposite, and the phase place of vibration interference signal on two quick sensing heads of end face responsive type power is identical, by flow integrator the signal on these two quick sensing heads of end face responsive type power is carried out calculus of differences like this, just can exclude the interference signal, flow signal amplifying has reached that vibration resistance is strong, measurement range is wide, adaptable purpose.
Description of drawings:
Fig. 1 is the two vortex flowmeter schematic appearance that detect of the utility model
Fig. 2 is the utility model embodiment 2 cross-sectional schematic.
Fig. 3 is the utility model embodiment 1 cross-sectional schematic.
Embodiment 1: as Fig. 1, shown in 2, two detection vortex flowmeters comprise sensor sheet body 1, flow integrator, eddy generator 2 and detection probe, detection probe is made up of two quick sensing heads 3 of power, wherein eddy generator 2 is positioned in the middle of the table body inner fluid runner, axis and fluid course axis are perpendicular, eddy generator 2 can be right cylinder, but fluoran stream surface is good with the plane, select tri-prismoid in the present embodiment for use, its fluoran stream surface is perpendicular to the fluid course axis, two quick sensing heads 3 of power are separately positioned on the fluoran stream surface downstream, in the detection hole on the runner tube wall of eddy generator 2 axis and both sides, fluid course axis plane of living in, make normal flow signal phase place on two detection probe opposite, and the phase place of vibration interference signal on two quick sensing heads 3 of power is identical, distance from fluoran stream surface will be to obtain stronger signal between 0.2D～0.6D, and wherein D is the fluid course latus rectum; In addition in order to make two vortex flowmeter compact overall structure that detect, two quick sensing heads 3 of power are preferably disposed on the column eddy generator 2 same distolateral runner tube walls and central shaft is parallel to each other, the quick sensing head 3 of power can be vertical with the runner axis or tilt, its end can be stretched in the runner, also can contract in detecting the hole.
Embodiment 2: the quick sensing head 3 of two power of two detection vortex flowmeters can also be arranged in the detection hole on the runner tube wall of eddy generator 2 axis and the same side, fluid course axis plane of living in, runner distance between two quick sensing heads 3 of power equals 0.5L, distance from fluoran stream surface will be between 0.2D～0.6D, with guarantee normal flow signal enough strong and on two detection probe phase place opposite, and the phase place of vibration interference signal on two quick sensing heads 3 of power is identical, and wherein L is the spacing between the whirlpool.
The quick sensing head 3 of power in the above-mentioned embodiment can be piezoelectric type or condenser type detection probe, is not limited in this certainly, and other the quick sensing head 3 of end face responsive type power also is fine.
Claims (9)
1. one kind pair is detected vortex flowmeter, comprise the vortex flow sensor, flow integrator, the vortex flow sensor is by sensor sheet body (1), column eddy generator (2), detection probe is formed, eddy generator (2) axis and fluid course axis are located at the centre of table body fluid course perpendicularly, described eddy generator (2) fluoran stream surface downstream, the runner tube wall of both sides is provided with and detects the hole outside eddy generator (2) axis and the fluid course axis plane of living in, detect and be provided with the quick sensing head of end face responsive type power (3) composition detection probe in the hole, its responsive end face contacts with medium, it is characterized in that: described runner tube wall is provided with two detection holes and the quick sensing head of power (3) detects two opposite whirlpool signals of phase place respectively.
2, two vortex flowmeter that detects according to claim 1, it is characterized in that: described two quick sensing heads of power (3) are separately positioned on the runner tube wall of eddy generator (2) axis and both sides, fluid course axis plane of living in.
3, two vortex flowmeter that detects according to claim 2, it is characterized in that: described two quick sensing heads of power (3) are arranged on the same distolateral runner tube wall of column eddy generator (2).
4, two vortex flowmeter that detects according to claim 3, it is characterized in that: described two quick sensing heads of power (3) central shaft is arranged in parallel.
5, two vortex flowmeter that detects according to claim 4 is characterized in that: described two the quick sensing head of power (3) central shafts and eddy generator (2) parallel axes setting.
6, two vortex flowmeter that detects according to claim 1, it is characterized in that: described two quick sensing heads of power (3) are arranged on the runner tube wall of eddy generator (2) axis and the same side, fluid course axis plane of living in, runner distance between two quick sensing heads of power (3) equals 0.5L, and wherein L is the spacing between the whirlpool.
7, according to claim 1 or 2 or 3 or 4 or 5 or 6 described two vortex flowmeters that detect, it is characterized in that: the distance between described detection hole and the fluoran stream surface is 0.2D～0.6D, and wherein D is the fluid course latus rectum.
8, according to claim 1 or 2 or 3 or 4 or 5 or 6 described two vortex flowmeters that detect, it is characterized in that: the described quick sensing head of end face responsive type power (3) is piezoelectric type or condenser type detection probe.
9, two vortex flowmeter that detects according to claim 7, it is characterized in that: the described quick sensing head of end face responsive type power (3) is piezoelectric type or condenser type detection probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027123 CN2715117Y (en) | 2004-05-13 | 2004-05-13 | Dual-detection vortex flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027123 CN2715117Y (en) | 2004-05-13 | 2004-05-13 | Dual-detection vortex flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2715117Y true CN2715117Y (en) | 2005-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420027123 Expired - Fee Related CN2715117Y (en) | 2004-05-13 | 2004-05-13 | Dual-detection vortex flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2715117Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819051A (en) * | 2010-04-27 | 2010-09-01 | 郑州市光力科技发展有限公司 | Vortex street flowmeter probe and vortex street flowmeter using probe |
| CN110631646A (en) * | 2018-06-22 | 2019-12-31 | 微动公司 | Vortex flowmeter supporting flow instability detection |
| CN110940384A (en) * | 2019-11-27 | 2020-03-31 | 江苏微浪电子科技有限公司 | Precession vortex flowmeter |
| WO2020082857A1 (en) * | 2018-10-22 | 2020-04-30 | 山东科尔自动化仪表股份有限公司 | Anti-vibration fluid measuring device having two vortex sensors, and measuring method |
-
2004
- 2004-05-13 CN CN 200420027123 patent/CN2715117Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819051A (en) * | 2010-04-27 | 2010-09-01 | 郑州市光力科技发展有限公司 | Vortex street flowmeter probe and vortex street flowmeter using probe |
| CN101819051B (en) * | 2010-04-27 | 2012-05-30 | 郑州光力科技股份有限公司 | Vortex street flowmeter probe and vortex street flowmeter using probe |
| CN110631646A (en) * | 2018-06-22 | 2019-12-31 | 微动公司 | Vortex flowmeter supporting flow instability detection |
| WO2020082857A1 (en) * | 2018-10-22 | 2020-04-30 | 山东科尔自动化仪表股份有限公司 | Anti-vibration fluid measuring device having two vortex sensors, and measuring method |
| CN110940384A (en) * | 2019-11-27 | 2020-03-31 | 江苏微浪电子科技有限公司 | Precession vortex flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20091111 Pledge (preservation): Pledge |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20091111 Pledge (preservation): Pledge |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120711 Granted publication date: 20050803 Pledgee: Bank of Wenzhou Limited by Share Ltd Ouhai branch Pledgor: Fuma Instrument Co., Ltd., Zhejiang Prov. Registration number: 2009330000639 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050803 Termination date: 20130513 |