CN101493348A - Freestanding electromagnetic flowmeter - Google Patents
Freestanding electromagnetic flowmeter Download PDFInfo
- Publication number
- CN101493348A CN101493348A CNA2009100246852A CN200910024685A CN101493348A CN 101493348 A CN101493348 A CN 101493348A CN A2009100246852 A CNA2009100246852 A CN A2009100246852A CN 200910024685 A CN200910024685 A CN 200910024685A CN 101493348 A CN101493348 A CN 101493348A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- electrode
- measuring tube
- potential electrode
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses an independent electromagnetic flowmeter. In the flowmeter, two measuring electrodes (2) and one grounding electrode (3) are at least arranged on a circular section of a measuring tube (1), the two measuring electrodes (2) are symmetrically arranged on the two sides of the measuring tube (1), the grounding electrode (3) is arranged on the measuring tube (1) arranged between the two measuring electrodes (2), the two measuring electrodes (2) are connected with a converter (7), the grounding electrode (3) is connected with a reference electrode of the converter (7), each measuring electrode (2) corresponds to an independent magnetic field (4), the independent magnetic field (4) is arranged on the measuring tube (1) and positioned outside the measuring electrodes (2), the independent magnetic field (4) is composed of a magnetic conducting material (5) which surrounds two electromagnetic coils (6), and the two electromagnetic coils (6) are connected on an excitation drive power supply in series or in parallel. Each measuring electrode of the independent electromagnetic flowmeter corresponds to an independent magnetic field, which simplifies the flowmeter structure, is convenient and reliable in mounting, improves the measuring accuracy and lowers the production cost.
Description
Technical field
The present invention relates to electromagnetic flowmeter, be specifically related to freestanding electromagnetic flowmeter.
Background technology
Conventional electromagnetic flowmeter is to fix at the pipe fitting upper and lower with coil, makes the pipe fitting cross section form an average magnetic field, and the fluid cutting magnetic line produces electromotive force.Because of the requirement of strength in magnetic field is certain, so conventional solenoid must cover whole pipe fitting cross section, and coil resistance is certain.When caliber increased, the line of coil footpath also needed chap, thereby exciting current is also increased.
Summary of the invention
The objective of the invention is to: a kind of freestanding electromagnetic flowmeter is provided, every corresponding free-standing magnetic field of potential electrode, the local high-intensity magnetic field of this stand alone type is different from conventional average magnetic field, simplify flowmeter structure, easy installation and reliable, improve measuring accuracy, reduce production costs.
Technical solution of the present invention is: this flowmeter is made of installing electrodes and magnetic field on the circular section of measuring tube, it is characterized in that: two potential electrode and a ground-electrode are installed on the same circular section of measuring tube at least, two potential electrode symmetries are installed in the measuring tube both sides, ground-electrode is installed on the measuring tube between two potential electrode, two potential electrode connect converter, ground-electrode connects the benchmark utmost point of converter, every corresponding free-standing magnetic field of potential electrode, stand alone type magnetic field is installed in and is positioned at outside the potential electrode on the measuring tube, formed magnetic line of force tangent line is in the liquid level that connects of potential electrode, stand alone type magnetic field is by constituting around two solenoids on the permeability magnetic material, two solenoid strings or be connected in parallel on the same excitation driving power.
In the meter, the permeability magnetic material in free-standing magnetic field is the C font during free-standing electromagnetic current of the present invention.
In the meter, the C font opening of the permeability magnetic material in free-standing magnetic field increases with caliber during free-standing electromagnetic current of the present invention.
The present invention has the following advantages: 1, adopt the local strong magnetism excitation mode of free-standing flux path, the corresponding potential electrode in magnetic field has been abandoned conventional average magnetic field mode, and is simpler on the structure, reliable; 2, the caliber as measuring tube has increased, and the tangent position that only needs to adjust the magnetic circuit counter electrode gets final product, and highly versatile is adjusted simple; 3, because of the corresponding potential electrode of a cover magnetic circuit, change has also taken place in corresponding measuring tube material, former measuring tube need be with non-magnetic stainless steel and stainless steel welding material, existing measuring tube adopts carbon steel sheet, only need adopt non-magnetic stainless steel material and a spot of stainless steel welding material in the place of local counter electrode, as it is big more to measure caliber, and advantage is obvious more; 4, solenoid and permeability magnetic material use amount do not increase with the increase of caliber, save a large amount of copper material and permeability magnetic material.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1 measuring tube, 2 potential electrode, 3 ground-electrodes, 4 free-standing magnetic fields, 5 permeability magnetic materials, 6 solenoids, 7 converters
Embodiment
As shown in Figure 1, this flowmeter is made of installing electrodes and magnetic field on the circular section of measuring tube 1, it is characterized in that: two potential electrode 2 and a ground-electrode 3 are installed on measuring tube 1 same circular section at least, two potential electrode 2 symmetries are installed in measuring tube 1 both sides, ground-electrode 3 is installed on the measuring tube 1 between two potential electrode 2, two potential electrode 2 connect converter 7, ground-electrode 3 connects the benchmark utmost point of converter 7, every potential electrode 2 corresponding free-standing magnetic fields 4, stand alone type magnetic field 4 is installed in and is positioned at outside the potential electrode 2 on the measuring tube 1, formed magnetic line of force tangent line is in the liquid level that connects of potential electrode 2, stand alone type magnetic field 4 is made of around two solenoids 6 permeability magnetic material 5, two solenoids, 6 strings or be connected in parallel on the same excitation driving power.
In the meter, the permeability magnetic material 5 in free-standing magnetic field 4 is the C font during free-standing electromagnetic current of the present invention.
In the meter, the C font opening of the permeability magnetic material 5 in free-standing magnetic field 4 increases with caliber during free-standing electromagnetic current of the present invention.
Claims (3)
1. freestanding electromagnetic flowmeter, this flowmeter is made of installing electrodes and magnetic field on the circular section of measuring tube (1), it is characterized in that: two potential electrode (2) and a ground-electrode (3) are installed on the same circular section of measuring tube (1) at least, two potential electrode (2) symmetry is installed in measuring tube (1) both sides, ground-electrode (3) is installed on the measuring tube (1) between two potential electrode (2), two potential electrode (2) connect converter (7), ground-electrode (3) connects the benchmark utmost point of converter (7), the corresponding free-standing magnetic field (4) of every potential electrode (2), stand alone type magnetic field (4) is installed in and is positioned at outside the potential electrode (2) on the measuring tube (1), formed magnetic line of force tangent line is in the liquid level that connects of potential electrode (2), stand alone type magnetic field (4) is made of around two solenoids (6) permeability magnetic material (5), and two solenoids (6) are gone here and there or are connected in parallel on the same excitation driving power.
2. freestanding electromagnetic flowmeter according to claim 1 is characterized in that: the permeability magnetic material (5) of free-standing magnetic field (4) is the C font.
3. count during free-standing electromagnetic current according to claim 1, it is characterized in that: the C font opening of the permeability magnetic material (5) of free-standing magnetic field (4) increases with caliber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100246852A CN101493348A (en) | 2009-02-26 | 2009-02-26 | Freestanding electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100246852A CN101493348A (en) | 2009-02-26 | 2009-02-26 | Freestanding electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101493348A true CN101493348A (en) | 2009-07-29 |
Family
ID=40924056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100246852A Pending CN101493348A (en) | 2009-02-26 | 2009-02-26 | Freestanding electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101493348A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221383A (en) * | 2011-03-04 | 2011-10-19 | 厦门海旭东方智能科技有限公司 | Differential magnetic induction flow meter |
| CN104501887A (en) * | 2014-12-05 | 2015-04-08 | 浦瑞斯仪表（上海）有限公司 | Double-excitation-loop electromagnetic flowmeter |
| CN107073191A (en) * | 2015-02-04 | 2017-08-18 | 弗雷森纽斯医疗护理德国有限责任公司 | Through-flow measuring appliance and the carriage module for through-flow measuring appliance |
| CN108507631A (en) * | 2018-03-12 | 2018-09-07 | 南京惠然测控技术有限公司 | A kind of electromagnetism water meter measurement pipe measuring electrode structure |
-
2009
- 2009-02-26 CN CNA2009100246852A patent/CN101493348A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221383A (en) * | 2011-03-04 | 2011-10-19 | 厦门海旭东方智能科技有限公司 | Differential magnetic induction flow meter |
| CN102221383B (en) * | 2011-03-04 | 2013-02-27 | 厦门海旭东方智能科技有限公司 | Differential magnetic induction flow meter |
| CN104501887A (en) * | 2014-12-05 | 2015-04-08 | 浦瑞斯仪表（上海）有限公司 | Double-excitation-loop electromagnetic flowmeter |
| CN104501887B (en) * | 2014-12-05 | 2017-12-12 | 浦瑞斯仪表（上海）有限公司 | Double energized circuit electromagnetic flowmeters |
| CN107073191A (en) * | 2015-02-04 | 2017-08-18 | 弗雷森纽斯医疗护理德国有限责任公司 | Through-flow measuring appliance and the carriage module for through-flow measuring appliance |
| CN107073191B (en) * | 2015-02-04 | 2020-05-29 | 弗雷森纽斯医疗护理德国有限责任公司 | Through-flow measuring device and case module for a through-flow measuring device |
| CN108507631A (en) * | 2018-03-12 | 2018-09-07 | 南京惠然测控技术有限公司 | A kind of electromagnetism water meter measurement pipe measuring electrode structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2010257747B2 (en) | Magnetically inductive flowmeter | |
| US8286502B2 (en) | Electromagnet flowmeter having a measuring tube with a varying cross section | |
| CN103575342B (en) | Electromagnetic induction flow measuring instrument | |
| CN101493348A (en) | Freestanding electromagnetic flowmeter | |
| CA2994683C (en) | Inductive flow meter including extended magnetic pole pieces | |
| JP5818415B2 (en) | Calibration device for electromagnetic flow measurement system | |
| US7267012B2 (en) | Electromagnetic flowmeter including electrodes and magnetic pole placed in proximity on one side of the outer wall | |
| CN201359512Y (en) | Independent type electromagnetic flowmeter | |
| RU2431118C2 (en) | Electromagnetic flow meter of liquid metals | |
| US7866218B2 (en) | Electromagnetic flow meter | |
| CN105571660A (en) | Micro-power-consumption excitation electromagnetic flow transducer | |
| RU107859U1 (en) | ELECTROMAGNETIC FLOW CONVERTER | |
| RU2474791C1 (en) | Electromagnetic flow meter for liquid metals | |
| CN101865712A (en) | Novel electromagnetic flowmeter | |
| CN103267552A (en) | Valve and electromagnetic flowmeter integrated device and application thereof | |
| CN201408037Y (en) | Independent excitation multi-electrode electromagnetic flowmeter | |
| CN211602045U (en) | Plug-in electromagnetic flowmeter | |
| CN201532217U (en) | Variable-frequency electromagnetic flow meter | |
| RU2516190C2 (en) | Electromagnetic flow meter of liquid metals | |
| CN217374974U (en) | Novel quantitative filling electromagnetic flowmeter | |
| CN212432266U (en) | Novel anti high-pressure electromagnetic flow meter | |
| CN101226072B (en) | Screw type flow sensor | |
| CN103278201A (en) | Flow sensing device and application thereof | |
| CN201081748Y (en) | Spiral type flow sensor | |
| RU2660774C1 (en) | Electromagnetic flowmeter inductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090729 |