CN201359512Y - Independent type electromagnetic flowmeter - Google Patents
Independent type electromagnetic flowmeter Download PDFInfo
- Publication number
- CN201359512Y CN201359512Y CNU2009200368272U CN200920036827U CN201359512Y CN 201359512 Y CN201359512 Y CN 201359512Y CN U2009200368272 U CNU2009200368272 U CN U2009200368272U CN 200920036827 U CN200920036827 U CN 200920036827U CN 201359512 Y CN201359512 Y CN 201359512Y
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- magnetic field
- electrode
- measuring
- potential electrode
- measuring tube
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Abstract
The utility model discloses an independent type electromagnetic flowmeter. At least two measuring electrodes (2) and one grounding electrode (3) are installed on the same circular cross-section of a measuring pipe (1), the two measuring electrodes (2) are symmetrically installed on both sides of the measuring pipe (1), the grounding electrode (3) is installed on the measuring pipe (1) 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 one independent type magnetic field (4), the independent type magnetic field (4) is installed on the measuring pipe (1) and positioned at the outer part of the measuring electrodes (2) and is formed by permeability magnetic material (5) wound with two electromagnetic coils (6); and the two electromagnetic coils (6) are connected on the same excitation driving power supply in series or in parallel. Since each measuring electrode corresponds to one independent type magnetic field, the utility model has the advantages of simplified structure of the flowmeter, convenient and reliable installation, improved measuring accuracy and lowered 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 utility model 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 freestanding electromagnetic flowmeter of the present utility model, the permeability magnetic material in free-standing magnetic field is the C font.
In the freestanding electromagnetic flowmeter of the present utility model, the C font opening of the permeability magnetic material in free-standing magnetic field increases with caliber.
The utlity model has following advantage: 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 the utility model structural representation.
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 utility model.
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 utility model.
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. freestanding electromagnetic flowmeter according to claim 1 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 |
|---|---|---|---|
| CNU2009200368272U CN201359512Y (en) | 2009-02-26 | 2009-02-26 | Independent type electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200368272U CN201359512Y (en) | 2009-02-26 | 2009-02-26 | Independent type electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359512Y true CN201359512Y (en) | 2009-12-09 |
Family
ID=41425276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200368272U Expired - Fee Related CN201359512Y (en) | 2009-02-26 | 2009-02-26 | Independent type electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359512Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865712A (en) * | 2010-04-13 | 2010-10-20 | 上海罗托克自动化仪表有限公司 | Novel electromagnetic flowmeter |
| CN112368551A (en) * | 2018-06-28 | 2021-02-12 | 恩德斯+豪斯流量技术股份有限公司 | Magnetic inductive flow meter and method for producing such a magnetic inductive flow meter |
-
2009
- 2009-02-26 CN CNU2009200368272U patent/CN201359512Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865712A (en) * | 2010-04-13 | 2010-10-20 | 上海罗托克自动化仪表有限公司 | Novel electromagnetic flowmeter |
| CN112368551A (en) * | 2018-06-28 | 2021-02-12 | 恩德斯+豪斯流量技术股份有限公司 | Magnetic inductive flow meter and method for producing such a magnetic inductive flow meter |
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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: 20091209 Termination date: 20110226 |