CN2690855Y - Electromagnetic flow sensor without inner lining - Google Patents
Electromagnetic flow sensor without inner lining Download PDFInfo
- Publication number
- CN2690855Y CN2690855Y CN 200420003500 CN200420003500U CN2690855Y CN 2690855 Y CN2690855 Y CN 2690855Y CN 200420003500 CN200420003500 CN 200420003500 CN 200420003500 U CN200420003500 U CN 200420003500U CN 2690855 Y CN2690855 Y CN 2690855Y
- Authority
- CN
- China
- Prior art keywords
- measuring tube
- electrode
- potential electrode
- insulator
- field coil
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an electromagnetic flow sensor without inner lining. The electromagnetic flow sensor is provided with a measuring tube. The two sides of the measuring tube are respectively provided with a pair of energizing coils, an iron core is arranged between each pair of the energizing coils, and the iron core is fixed on an energizing coil frame. The top and the bottom of the measuring tube are respectively provided with a measuring electrode, and one end of each electrode is contacted with a conductive fluid through the small holes of an insulator. An insulator and an insulating pad are provided between the measuring electrode and the contacting surface of means, and the outside of the measuring electrode is provided with an electrode box. The utility model has simple manufacturing process, convenient maintenance, strong abrasion-resistance of the measuring tube. The electromagnetic flow sensor without inner lining is suitable to the flow measurement of various conductive fluids, in particular suitable to the flow measurement of the fluid with causticity and the fluid medium with negative pressure, high pressure and high temperature.
Description
Technical field
The utility model relates to a kind of electromagnetic flow transducer that does not have liner, and it makes a kind of sensor that is used to measure the conducting liquid flow according to electromagnetic induction principle, belongs to fluid flow and measures the field.
Background technology
All scribble inner lining material on the measuring tube inboard of existing electromagnetic flow transducer and the flange sealing surface, the necessary electrical isolation and wear-resisting of inner lining material must have good anti-corrosion and heat-resisting quantity simultaneously; Inner lining material commonly used mainly contains tetrafluoroethene, polyamine fat rubber etc., and these materials can't have both for several performances of above-mentioned requirements, make existing electromagnetic flow transducer be subjected to certain restriction in the use, the liner processing technology complexity of electromagnetic flow transducer in addition, require to use different inner lining materials with different application places, like this, manufacturer will use different production technologies.In addition, also complicated at the mounting process of the high pressure resistant design aspect of electromagnetic flow transducer and detecting electrode.
Summary of the invention
The purpose of this utility model is, a kind of electromagnetic flow transducer that does not have liner is provided, and it is applicable to the flow measurement of various conductive fluids, particularly can be used in the measurement of negative pressure fluid flow measurement and high-temperature, high pressure fluid flow.
The technical solution of the utility model is: the electromagnetic flow transducer of no liner is provided with a measuring tube, in its both sides a pair of field coil is housed respectively, one iron core is housed between every pair of field coil, field coil and iron core and field spool is fixed on the measuring tube with gland nut and pad; On the coaxial cable of the above and below of measuring tube, respectively be provided with a potential electrode, between potential electrode and each member surface of contact, be equipped with insulator and insulating mat, one end of potential electrode all contacts with conductive fluid by the aperture on the insulator, and insulator separates potential electrode and measuring tube; Be provided with electrode box in the periphery of potential electrode and tighten up screw, and tighten up pad; Be provided with housing and side plate in the outside of above-mentioned whole facilities, be provided with a signal conveys interface on the wall of housing, all each links to each other with potential electrode with field coil the excitation signal incoming line by the signal conveys interface with the electrode signal outlet line; The two ends of described measuring tube are connected with the pipe joint that has ring flange.
Advantage of the present utility model is:
(1) owing to do not establish liner in the measuring tube of sensor, manufacturing process is simple, and is easy to maintenance.
(2) resistance to abrasion is strong, can be used in to have for example flow measurement of mud, ore pulp of corrosive fluid media (medium).
(3) owing to the problem that does not exist liner to peel off, can be used in the measurement of fluid media (medium) flow with negative pressure, also can be used in the flow measurement of high temperature, high-pressure fluid medium.
Description of drawings
Fig. 1 is axial arrangement cut-open view of the present utility model
Fig. 2 is transversary cut-open view of the present utility model
Embodiment
As illustrated in fig. 1 and 2, the electromagnetic flow transducer of no liner is provided with a measuring tube 1, do not establish the electrical isolation liner on its inwall, in the both sides of measuring tube 1 a pair of field coil 2 is housed respectively, one iron core 3 is housed between every pair of field coil 2, with gland nut 4 and pad 5 field coil 2 and iron core 3 and field spool 6 are fixed on the measuring tube 1, on the coaxial cable of the above and below of measuring tube 1, respectively be provided with a potential electrode 7, between potential electrode 7 and each member surface of contact, be equipped with insulator 9 and insulating mat 10, one end of potential electrode 7 all contacts with fluid by the aperture on the insulator 98, and insulator separates potential electrode and measuring tube; Be provided with electrode box 11 in the periphery of potential electrode 7 and tighten up screw 12 and pad 13, in order to holding and to fix each potential electrode 7 and insulator 9 and 10, and make its mounting or dismounting and changing easily.Be provided with housing 14 and side plate 15 in the outside of above-mentioned whole facilities, be provided with a signal conveys interface 16 on the wall of housing 14, excitation signal incoming line 17 all respectively links to each other with potential electrode 7 with field coil 2 by signal conveys interface 16 with electrode signal outlet line 18; The two ends of measuring tube 1 are connected with the pipe joint 19 that has ring flange.
Claims (1)
1, a kind of electromagnetic flow transducer that does not have liner comprises measuring tube, field coil and iron core, and potential electrode and electrode insulation body, it is characterized in that:
A pair of field coil (2) respectively is equipped with in the both sides of described measuring tube (1), one iron core (3) is housed between every pair of field coil (2), field coil (2) and iron core (3) and field spool (6) is fixed on the measuring tube (1) with gland nut (4) and pad (5); On the coaxial cable of the above and below of measuring tube (1), respectively be provided with a potential electrode (7), between potential electrode (7) and each member surface of contact, be equipped with insulator (9) and insulating mat (10); One end of potential electrode (7) all contacts with conductive fluid by the aperture (8) on the insulator (9); Insulator (9) separates potential electrode (7) and measuring tube (1); Be provided with electrode box (11) and fixed screw (12) in the periphery of potential electrode (7), and setting-up piece (13); Be provided with housing (14) and side plate (15) in the outside of above-mentioned whole facilities; Be provided with a signal conveys interface (16) on housing (14) wall, all each links to each other with potential electrode (7) with field coil (2) excitation signal incoming line (17) by signal conveys interface (16) with electrode signal outlet line (18); The two ends of measuring tube (1) are connected with the pipe joint that has ring flange (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420003500 CN2690855Y (en) | 2004-02-13 | 2004-02-13 | Electromagnetic flow sensor without inner lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420003500 CN2690855Y (en) | 2004-02-13 | 2004-02-13 | Electromagnetic flow sensor without inner lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2690855Y true CN2690855Y (en) | 2005-04-06 |
Family
ID=34667698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420003500 Expired - Fee Related CN2690855Y (en) | 2004-02-13 | 2004-02-13 | Electromagnetic flow sensor without inner lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2690855Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922952A (en) * | 2010-05-07 | 2010-12-22 | 上海肯特仪表股份有限公司 | Coreless conduit of electromagnetic flow-meter and making method thereof |
| CN102072749A (en) * | 2011-01-31 | 2011-05-25 | 上海光华仪表有限公司 | Connecting structure of two ends of electromagnetic flow sensor measuring pipe |
| CN105067055A (en) * | 2015-08-17 | 2015-11-18 | 上海埃克仪器仪表有限公司 | Electromagnetic flow transducer with unlined measurement cavity |
-
2004
- 2004-02-13 CN CN 200420003500 patent/CN2690855Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922952A (en) * | 2010-05-07 | 2010-12-22 | 上海肯特仪表股份有限公司 | Coreless conduit of electromagnetic flow-meter and making method thereof |
| CN102072749A (en) * | 2011-01-31 | 2011-05-25 | 上海光华仪表有限公司 | Connecting structure of two ends of electromagnetic flow sensor measuring pipe |
| CN105067055A (en) * | 2015-08-17 | 2015-11-18 | 上海埃克仪器仪表有限公司 | Electromagnetic flow transducer with unlined measurement cavity |
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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: 20050406 Termination date: 20100213 |