CN2453392Y - Multiple electrode flow rate sensor - Google Patents
Multiple electrode flow rate sensor Download PDFInfo
- Publication number
- CN2453392Y CN2453392Y CN 00208463 CN00208463U CN2453392Y CN 2453392 Y CN2453392 Y CN 2453392Y CN 00208463 CN00208463 CN 00208463 CN 00208463 U CN00208463 U CN 00208463U CN 2453392 Y CN2453392 Y CN 2453392Y
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- China
- Prior art keywords
- electrode
- sensor
- fixing holes
- flow
- flow velocity
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- Expired - Fee Related
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Abstract
The utility model discloses a multi-electrode flow rate sensor which is provided with a sensor casing. Electrode fixing holes of 4-24 are arranged on the periphery of the sensor casing, polytetrafluoroethylene insulating inner linings are arranged at the inner wall of the sensor casing and the inner walls of the electrode fixing holes, electrodes are arranged in the electrode fixing holes which are provided with the polytetrafluoroethylene inner linings, and coils are arranged at the outside of the sensor casing. The utility model has the advantages that the simple structure and the convenient use are realized, a made-up electromagnetic flowmeter can obtain the flow velocity distribution on the cross section of a measuring section tube, and whether the flow velocity distribution of the flow fluid in a pipeline is in axial symmetry or not is irrelevant to the average flow velocity of the flow fluid according the flow velocity distribution, and the installing requirement of the flowmeter is lowered.
Description
The utility model relates to the mechanical hook-up of the output that is used to transmit the sensing member, relates in particular to a kind of multi-electrode flow sensor.
Existing electromagnetic flowmeter has been widely used in many industrial processes such as water supply and sewage work, wastewater treatment and medicine, food, weaving.Its principal feature is the sensor no-movable part, and fluid flow is noiseless substantially, can produce the additional pressure loss by convection cell hardly; Parameters such as the working pressure of measurement result and detected fluid, temperature, viscosity are irrelevant.Existing electromagnetic flowmeter is general main to be made up of sensor, field power supply and three parts such as signal amplification and treatment circuit.Nearly all sensor all adopts pair of electrodes, and electrode is installed in tube wall, and the line of electrode is perpendicular to magnetic field.Owing on the sensor construction, be the measuring accuracy of dependable flow meter, requiring flow rate of fluid to distribute is axial symmetry, for this reason, before flowmeter enough flow development lengths will be arranged during installation, this makes the application of flowmeter bring the application of certain limitation, particularly heavy caliber flowing meter.
The purpose of this utility model provides a kind of multi-electrode flow sensor simple in structure, easy to use.
The utility model is taked following measures in order to achieve the above object:
The multi-electrode flow sensor has sensor housing, on the sensor housing periphery, be provided with 4～24 electrode fixing holes, on sensor housing inwall and electrode fixing holes inwall, be provided with the teflon insulation liner, in being provided with the teflon-lined electrode fixing holes, be provided with electrode, coil arranged at the sensor housing peripheral hardware.
The utility model is simple in structure, easy to use, and the electromagnetic flowmeter that adopts the utility model to make also has following advantage:
1, according to each the interelectrode electromotive force that records, can obtain the velocity flow profile on the measuring section tube section;
2, can obtain the mean flow rate of fluid by velocity flow profile or directly utilize each electrode to quadrature with respect to the potential value of reference electrode to obtain mean flow rate, whether this mean flow rate and fluid are that rotational symmetry is irrelevant in ducted velocity flow profile;
3, because the mean flow rate of flowmeter output is not subjected to the influence of velocity flow profile, therefore flowmeter does not need special straight length when mounted in principle, thereby greatly reduces the installation requirement of flowmeter;
4, when the flowmeter level is installed, whether whether unusual according to the potential value that is positioned at each electrode of level top, can differentiate fluid is non-full pipe, but and the non-full pipe degree of estimating of fluid.
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is a multi-electrode flow sensor structural representation;
Fig. 2 is the electrode structure synoptic diagram.
The multi-electrode flow sensor has sensor housing 2, on the sensor housing periphery, be provided with 4～24 electrode fixing holes, on sensor housing inwall and electrode fixing holes inwall, be provided with teflon insulation liner 3, in being provided with the teflon-lined electrode fixing holes, be provided with electrode 1, coil 4 arranged at the sensor housing peripheral hardware.Said electrode one end is a reverse taper, and the tapering of reverse taper is 30 °, and the surface in contact of electrode and fluid is that radius is the curved surface of R, and the other end is provided with the fixedly fixing internal thread of external thread and sensor lead of electrode.
Claims (2)
1. multi-electrode flow sensor, it is characterized in that: it has sensor housing [2], on the sensor housing periphery, be provided with 4～24 electrode fixing holes, on sensor housing inwall and electrode fixing holes inwall, be provided with teflon insulation liner [3], in being provided with the teflon-lined electrode fixing holes, be provided with electrode [1], coil [4] arranged at the sensor housing peripheral hardware.
2. a kind of multi-electrode flow sensor according to claim 1 is characterized in that said electrode one end is a reverse taper, and the other end is provided with the fixedly fixing internal thread of external thread and sensor lead of electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00208463 CN2453392Y (en) | 2000-04-19 | 2000-04-19 | Multiple electrode flow rate sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00208463 CN2453392Y (en) | 2000-04-19 | 2000-04-19 | Multiple electrode flow rate sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2453392Y true CN2453392Y (en) | 2001-10-10 |
Family
ID=33575828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00208463 Expired - Fee Related CN2453392Y (en) | 2000-04-19 | 2000-04-19 | Multiple electrode flow rate sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2453392Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101084414B (en) * | 2004-12-21 | 2010-05-12 | 恩德斯+豪斯流量技术股份有限公司 | In-line measuring device with a measuring tube and method for production thereof |
| CN110715696A (en) * | 2018-07-11 | 2020-01-21 | 浙江大学 | Superconductive magnetic fluid flowmeter with built-in grating |
-
2000
- 2000-04-19 CN CN 00208463 patent/CN2453392Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101084414B (en) * | 2004-12-21 | 2010-05-12 | 恩德斯+豪斯流量技术股份有限公司 | In-line measuring device with a measuring tube and method for production thereof |
| CN110715696A (en) * | 2018-07-11 | 2020-01-21 | 浙江大学 | Superconductive magnetic fluid flowmeter with built-in grating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |