CN2602349Y - Plug-in type electromagnetic swirl flowmeater - Google Patents
Plug-in type electromagnetic swirl flowmeater Download PDFInfo
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- CN2602349Y CN2602349Y CN 03223950 CN03223950U CN2602349Y CN 2602349 Y CN2602349 Y CN 2602349Y CN 03223950 CN03223950 CN 03223950 CN 03223950 U CN03223950 U CN 03223950U CN 2602349 Y CN2602349 Y CN 2602349Y
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Abstract
The utility model relates to an inserting type electromagnetic vortex flow meter which comprises a fluid pipe, a sensor, a screw rod with adjustable inserting depth and a flow totalizer. The sensor is fixed at the lower end of the screw rod, the sensor comprises an inner pipe, a vortex generator, a magnet and a detecting electrode; wherein, the vortex generator is vertically arranged on the axial line of the inner pipe; the detecting electrode and the magnet are both arranged on the wall of the inner pipe and share the same central axis, with the superior part of the detecting electrode provided with an insulator. The insulator runs through the wall of the inner pipe and extends into the fluid behind the vortex generator to realize an electric contact with the fluid and to send detection signals to a flow totalizer display. The utility model has the technical advantages that the advantages of electromagnetic flow meters and vortex shedding flow meters are combined on the utility model, the inserting depth of the sensor is adjustable, the flow of the fluid pipe is measured by a point velocity of flow is adopted, which overcomes the shortcomings of previous inserting type vortex shedding flow meters such as complicated production, the structure is simple and production is convenient, the utility model may be used for the flow measurements towards those flow pipes of large calibers, with a high precision, and the utility model is of a high cost performance ratio.
Description
Technical field the utility model relates to flow measurement device, particularly relates to the flowmeter that is used for measuring the conductive fluid flow that utilizes Karman vortex street principle and Faraday's electromagnetic induction law design.Can be widely used in supplying water, the measurement and the control of industry fluid flow such as wastewater treatment, oil, chemical industry, metallurgy.
Background technology calculates flow rate of fluid and flow by detecting the cross frequence of the eddy current that produces in vortex generation body downstream, and this is the vortex shedding flow meter that adopts the Karman vortex street principle to form usually.Conductive fluid cutting magnetic line in magnetic field produces electromotive force, calculates the flow velocity of detected fluid with this, and this is the electromagnetic flowmeter that adopts Faraday's electromagnetic induction law to form.At present, vortex shedding flow meter and electromagnetic flowmeter have become the ripe product of technology, have been widely used in the measurement of fluid.For the big-diameter pipeline flow measurement, generally adopt the plug-in type flow meter to measure.At present, existing plug-in type vortex shedding flow meter, structure is complicated, and production technology is complicated.In recent years, the plug-in type vortex shedding flow meter is constantly improved, it adopts the method for stress-type to detect flow signal, it as the patent No. 86 2 0542.8 plug-in type vortex shedding flow meter, its sensor adopts vortex pair generation body structure, and complex structure, need process the sensor and the fluid line of various sizes to the pipe design of different size, the precision of flowmeter and the size relationship of each specification are close, and production technology is complicated.The patent No. is 95 2 43540.3 heavy caliber plug-in type vortex shedding flow meter, adopt two detecting elements, its measuring head is the curvature arc structure, need guarantee during installation that the relative distance with housing is 0.242R, under the guaranteed situation of mounting process, its measuring accuracy just can reach.
The summary of the invention the technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of plug-in type electromagnetic magnetic swirl flowmeter that merges the advantage of electromagnetic flowmeter and vortex shedding flow meter, cross frequence according to Karman vortex street principle and Faraday's electromagnetic induction law detection vortex, realize the flow measurement of conductive fluid, this flow measurement accuracy of measurement height, range ratio is wide, the anti-vibration performance is good, low flow speed characteristic is good.
The technical problems to be solved in the utility model can be by realizing by the following technical solutions:
Design, a kind of plug-in type electromagnetic magnetic swirl flowmeter of making, the screw mandrel and the flow integrator that comprise fluid line, sensor, scalable insertion depth, described sensor is fixed on the lower end of described screw mandrel, and this sensor comprises interior conduit, vortex generation body, magnet and detecting electrode;
Described vortex generation body is perpendicular to the axis of interior conduit, and described detecting electrode and described magnet place on this vortex generation body inner duct wall afterwards, and described magnet and detecting electrode have same central axis;
Described detecting electrode is parallel with described vortex generation body, it passes through described inner duct wall and stretches in the fluid of described vortex generation body back, insulator is arranged at described detecting electrode top, its lower end exposed portions serve and fluid electrically contacts and detection signal is delivered to described flow accumulation display instrument.
The utility model is compared with prior art, technique effect is: the advantage that has merged electromagnetic flowmeter and vortex shedding flow meter, the sensor insertion depth is adjustable, measure the flow of the fluid line of full packages with some flow velocity method, overcome in the past different size different designs size in the plug-in type flowmeter production, produce shortcomings such as numerous and diverse, it is simple in structure, convenient for production, can be used for the flow measurement of bassoon footpath fluid pipeline, have high cost performance.
Description of drawings
Fig. 1 is the structural representation of the utility model plug-in type electromagnetic magnetic swirl flowmeter;
Fig. 2 is the structural representation of a kind of embodiment of the sensor 1 of described plug-in type electromagnetic magnetic swirl flowmeter;
Fig. 3 is the structural representation of another kind of embodiment of the sensor 1 of described plug-in type electromagnetic magnetic swirl flowmeter;
Fig. 4 is the synoptic diagram of the magnet 13 of described flowmeter; Fig. 4-the 1st wherein, magnet 13 be shaped as columniform synoptic diagram; Fig. 4-the 2nd, the synoptic diagram that is shaped as rectangular cylinder of magnet 13;
Fig. 5 is the synoptic diagram of the detecting electrode 14 of described electromagnetism swirl flowmeter, Fig. 5-the 1st wherein, detecting electrode 14 be shaped as columniform synoptic diagram; Fig. 5-the 2nd, the synoptic diagram that is shaped as rectangular cylinder of detecting electrode 14.
Embodiment is described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
A kind of plug-in type electromagnetic magnetic swirl flowmeter, as shown in Figure 1, sensor 1 inserts in the detected fluid pipeline 3 by screw mandrel 2, regulate screw mandrel 2, can change the insertion depth of sensor 1, the screw flange seat 5 of screw mandrel 2 is fixed on the ball valve 4, and ball valve 4 is fixed on the mount pad 6 of fluid line 3 outer walls welding, also can dismantle to realize that sensor 1 continues to flow.The other end at screw mandrel 2 then is equipped with flow integrator 8, and sensor 1 is the lower end that is fixed on screw mandrel 2 with screw thread or bolt or additive method.
As shown in Figure 3, sensor 1 structure adopts detecting electrode 14 and the structure of magnet 13 at the not homonymy of interior conduit 11, in inner duct wall 11 1 sides perpendicular to vortex generation body 12 back of interior conduit 11 axis, with vortex generation body 12 detecting electrode 14 that be arranged in parallel, at interior conduit 11 duct walls 111 opposite sides magnet 13 is set, described magnet 13 is permanent magnet or calutron, exterior contour be shaped as cylindrical or rectangular cylinder, as shown in Figure 4, but do not have a through hole in the middle of it; Magnet 13 has same central axis with detecting electrode 14, and detecting electrode 14 tops have insulator 15 that detecting electrode 14 and inner duct wall 111 electricity are isolated, and detecting electrode 14 lower end exposed portions serve extend in the interior conduit 11 and electrically contact with fluid.By screw mandrel 2, detecting electrode 14 is delivered to flow accumulation display instrument 8 with the signal that detects.
The N of magnet 13 described in the utility model, the S utmost point are perpendicular to the axis of described fluid line 1.Described detecting electrode 4 is a solid cylinder, and it is shaped as cylindrical or rectangular cylinder, sees shown in Figure 5.Described flow accumulation display instrument 8 is fixed on the described fluid line 1.
As shown in Figure 1, the sensor 1 of the utility model plug-in type electromagnetic magnetic swirl flowmeter is connected on the screw mandrel 2 of scalable insertion depth, regulate screw mandrel 2, can make sensor 1 place on the axis of fluid line 3 or other positions, the flow velocity of measuring certain point can obtain the flow and the flow velocity of the fluid line of full packages, flow measurement can not be subjected to the restriction of caliber size, and in big caliber application scenario, cost performance is higher.Therefore its also attachable sensor that is designed to continue to flow can detect, keep in repair and calibrate surely at the enterprising rower of standard set-up sensor.
Claims (9)
1. plug-in type electromagnetic magnetic swirl flowmeter comprises it is characterized in that the screw mandrel (2) and the flow integrator (8) of fluid line (3), sensor (1), scalable insertion depth:
Described sensor (1) is fixed on the lower end of described screw mandrel (2), and this sensor (1) comprises interior conduit (11), vortex generation body (12), magnet (13) and detecting electrode (14);
Described vortex generation body (12) is perpendicular to the axis of interior conduit (11), described detecting electrode (14) and described magnet (13) place on this vortex generation body (12) inner duct wall (111) afterwards, and described magnet (13) has same central axis with detecting electrode (14);
Described detecting electrode (14) is parallel with described vortex generation body (12), it passes through described inner duct wall (111) and stretches in the fluid of described vortex generation body (12) back, insulator (15) is arranged at described detecting electrode (14) top, its lower end exposed portions serve and fluid electrically contacts and detection signal is delivered to described flow accumulation display instrument (8).
2. electromagnetism swirl flowmeter as claimed in claim 1, it is characterized in that: described magnet (13) and detecting electrode (14) are arranged at the both sides of described inner duct wall (111) respectively, and described insulator (15) is isolated detecting electrode (14) and inner duct wall (111) electricity.
3. electromagnetism swirl flowmeter as claimed in claim 1, it is characterized in that: be provided with through hole (131) in the middle of the described magnet (13), described detecting electrode (14) passes through this through hole (131) and described inner duct wall (111) and stretches in the fluid of described vortex generation body (12) back, and described insulator (15) is isolated this detecting electrode (14) and magnet (13) and inner duct wall (111) electricity.
4. as claim 2 or 3 described electromagnetism swirl flowmeters, it is characterized in that: described magnet (13) be shaped as right cylinder or rectangular cylinder.
5. as claim 2 or 3 described electromagnetism swirl flowmeters, it is characterized in that: described detecting electrode (4) is a solid cylinder.
6. as claim 2 or 3 described electromagnetism swirl flowmeters, it is characterized in that: described detecting electrode (4) be shaped as right cylinder or rectangular cylinder.
7. as claim 2 or 3 described plug-in type electromagnetic magnetic swirl flowmeters, it is characterized in that: described magnet (13) is permanent magnet or calutron.
8. as claim 2 or 3 described plug-in type electromagnetic magnetic swirl flowmeters, it is characterized in that: the N of described magnet (13), the S utmost point are perpendicular to the axis of described interior conduit (11).
9. as claim 2 or 3 described electromagnetism swirl flowmeters, it is characterized in that: described flow accumulation display instrument (8) is fixed on the described fluid line (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223950 CN2602349Y (en) | 2003-02-28 | 2003-02-28 | Plug-in type electromagnetic swirl flowmeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223950 CN2602349Y (en) | 2003-02-28 | 2003-02-28 | Plug-in type electromagnetic swirl flowmeater |
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| Publication Number | Publication Date |
|---|---|
| CN2602349Y true CN2602349Y (en) | 2004-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03223950 Expired - Fee Related CN2602349Y (en) | 2003-02-28 | 2003-02-28 | Plug-in type electromagnetic swirl flowmeater |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349580B (en) * | 2007-07-19 | 2011-03-02 | 上海星空自动化仪表有限公司 | Large caliber vortex shedding flowmeter |
| CN106768095A (en) * | 2016-12-26 | 2017-05-31 | 中电华辰（天津）精密测器股份公司 | High accuracy magneto-electric vortex-shedding meter |
| CN108225469A (en) * | 2018-03-02 | 2018-06-29 | 哈尔滨工业大学 | A kind of parallel flow sensor |
| CN109405861A (en) * | 2018-11-14 | 2019-03-01 | 安徽蓝德自动化科技有限公司 | A kind of adjustable industrial instrument and its application method |
| CN110201599A (en) * | 2019-06-17 | 2019-09-06 | 浙江金龙自控设备有限公司 | A kind of skid-mounted high pressure water regulation device |
| CN113454342A (en) * | 2018-09-11 | 2021-09-28 | 木质部欧洲有限公司 | Centrifugal pump unit |
-
2003
- 2003-02-28 CN CN 03223950 patent/CN2602349Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349580B (en) * | 2007-07-19 | 2011-03-02 | 上海星空自动化仪表有限公司 | Large caliber vortex shedding flowmeter |
| CN106768095A (en) * | 2016-12-26 | 2017-05-31 | 中电华辰（天津）精密测器股份公司 | High accuracy magneto-electric vortex-shedding meter |
| CN108225469A (en) * | 2018-03-02 | 2018-06-29 | 哈尔滨工业大学 | A kind of parallel flow sensor |
| CN113454342A (en) * | 2018-09-11 | 2021-09-28 | 木质部欧洲有限公司 | Centrifugal pump unit |
| CN109405861A (en) * | 2018-11-14 | 2019-03-01 | 安徽蓝德自动化科技有限公司 | A kind of adjustable industrial instrument and its application method |
| CN109405861B (en) * | 2018-11-14 | 2020-12-22 | 安徽蓝德自动化科技有限公司 | Adjustable industrial instrument and use method thereof |
| CN110201599A (en) * | 2019-06-17 | 2019-09-06 | 浙江金龙自控设备有限公司 | A kind of skid-mounted high pressure water regulation device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |