CN202255494U - Electromagnetic flowmeter - Google Patents
Electromagnetic flowmeter Download PDFInfo
- Publication number
- CN202255494U CN202255494U CN2011204189546U CN201120418954U CN202255494U CN 202255494 U CN202255494 U CN 202255494U CN 2011204189546 U CN2011204189546 U CN 2011204189546U CN 201120418954 U CN201120418954 U CN 201120418954U CN 202255494 U CN202255494 U CN 202255494U
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- Prior art keywords
- electrode
- lining
- flowtube
- tip holder
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims description 12
- 108090000565 Capsid Proteins Proteins 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 6
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
An electromagnetic flowmeter comprises a flow tube, an electrode assembly and a display assembly, wherein flanges are arranged at two ends of the flow tube, a protective cover is sleeved at the middle of the flow tube, the outer part of the protective cover is connected with the display assembly through a supporting rod assembly, an electrode seat connected with the flow tube is arranged inside the flow tube, an electrode assembly is arranged inside the electrode seat and is of a cross structure, the electromagnetic flowmeter comprises an upper electrode, a middle electrode and a lower electrode which are of an integrated structure, the lower electrode is connected with the bottom of the middle electrode after sequentially passing through a lower bushing, a middle bushing and an upper bushing, a sealing gasket is arranged between the bottom of the middle electrode and the top of the upper bushing, the top of the middle electrode and the outer part of the upper electrode are sleeved with the same insulating sleeve, the outer part of the insulating sleeve is matched with a compression nut positioned inside the electrode seat, and the. Therefore, the design has the advantages of better stability, stronger sealing property, higher accuracy and stronger safety.
Description
Technical field
The utility model relates to a kind of flowmeter, relates in particular to a kind of electromagnetic flowmeter, specifically is applicable to the stability that improves measuring-signal.
Background technology
Electromagnetic flowmeter is a kind of Ferraris instrument that comes conducting medium volumetric flow rate in the measuring tube according to Faraday's electromagnetic induction law.It is according to the law of electromagnetic induction, and in non magnetic pipeline, utilization is measured conductive fluid average velocity and shown flow, and adopts microcontroller embedded technology, realizes digital excitation, on electromagnetic flowmeter, adopts the CAN fieldbus simultaneously.
The Chinese patent Granted publication number is CN201335705Y; Granted publication day is that the utility model patent on October 28th, 2009 discloses a kind of electromagnetic flowmeter; Comprise housing unit, electrode tip holder and electrode assemblie; In the middle of the housing unit is medium channel, and electrode tip holder is installed in the outer wall of housing unit, and electrode assemblie passes electrode tip holder and housing unit extends to medium channel; The electrode assemblie bottom has following lining to surround, and all adopting cylindrical between electrode assemblie, following lining, the housing unit is the progressive fit structure that compresses of circular cone.Though this utility model has reduced cost, has shortened the production cycle through the cancellation lining structure; But because this utility model only relies on set nut and lining to come the clamping electrode assembly, stationarity is relatively poor, during use; Electrode assemblie is prone to rock, thereby reduces the stability of measuring-signal; And, lack essential SLD around the electrode assemblie, during use, electrode assemblie is prone to polluted by testing medium, reduces result of use; In addition, the position of electrode assemblie entering measuring media is too short in this utility model, is prone to reduce the accuracy of measuring-signal.
Summary of the invention
The purpose of the utility model is to overcome defective and the problem that the less stable that exists in the prior art, sealing are weak, degree of accuracy is lower, provide a kind of stability better, strong, the higher electromagnetic flowmeter of degree of accuracy of sealing.
For realizing above purpose, the technical solution of the utility model is: a kind of electromagnetic flowmeter comprises flowtube, electrode assemblie and display module; The two ends of said flowtube are provided with flange, and the middle part is set with protective cover, and the outside of protective cover is connected with display module through fulcrum bar component; Set inside has the electrode tip holder that is connected with flowtube; The set inside of electrode tip holder has electrode assemblie, and an end of electrode assemblie is positioned at the inside of electrode tip holder, and the other end extends to the inside of flowtube behind lining;
Said electrode assemblie is cross structure, comprises into a single integrated structure top electrode, middle electrode and bottom electrode, and lining is an I-shaped structure, comprises into a single integrated structure last lining, middle lining and following lining; Said lining down matches with the inwall of flowtube; Last lining matches with the bottom of electrode tip holder; Bottom electrode is connected with the bottom of middle electrode behind following lining, middle lining, last lining successively; Be provided with sealing gasket between the bottom of middle electrode and the top of last lining, the top of middle electrode, the outside of top electrode all are set with same insulation sleeve, and the outside of this insulation sleeve gland nut inner with being positioned at electrode tip holder matches; Said top electrode is electrically connected with display module through signal wire.
The length of said lining down is greater than the length of last lining.
The length of said following lining is three to six times of last liner sleeve length.
Said display module comprises back casing, middle shell and procapsid; The two ends of middle shell are connected with back casing, procapsid respectively; The set inside of middle shell has the connection plug assembly; This connection plug assembly is electrically connected with top electrode through signal wire, and the position of nearly connection plug assembly is provided with the glass capsulation circle in the procapsid, and the opposite side of this glass capsulation circle is provided with glass.
Compared with prior art, the beneficial effect of the utility model is:
1, owing to electrode assemblie in a kind of electromagnetic flowmeter of the utility model is that cross structure, lining are I-shaped structure; During use; The lining of this kind I shape can give electrode assemblie stronger stationarity, and simultaneously, this device also is provided with sealing gasket, insulation sleeve, gland nut to match with lining, electrode tip holder; Guarantee that electrode assemblie can not rock in use, thereby improve the stability of measuring-signal.Therefore the stability of the utility model better.
2, because between the top of the bottom of middle electrode and last lining, be provided with sealing gasket in a kind of electromagnetic flowmeter of the utility model, closely the position of connection plug assembly is provided with the glass capsulation circle in procapsid; During use; Those O-ring seals can improve the sealing effectiveness of this device, guarantee that this device is not polluted by testing medium or external environment condition.Therefore the sealing of the utility model is stronger.
3, be positioned at the inside of electrode tip holder owing to an end of electrode assemblie in a kind of electromagnetic flowmeter of the utility model; The other end extends to the inside of flowtube behind lining; And the length of following lining is greater than the length of last lining; This design can not only guarantee that the other end (being bottom electrode) of electrode assemblie can be long go deep into testing medium improving measuring accuracy, and can avoid testing medium to get into this device inside, thereby guarantees the security used.Therefore not only degree of accuracy is higher for the utility model, and security is stronger.
Description of drawings
Fig. 1 is the front view of the utility model.
Fig. 2 is the left view of display module among Fig. 1.
Among the figure: flowtube 1, electrode assemblie 2, top electrode 21, middle electrode 22, bottom electrode 23, display module 3, back casing 31, middle shell 32, procapsid 33, flange 4, protective cover 5, fulcrum bar component 6, electrode tip holder 7, lining 8, last lining 81, middle lining 82, following lining 83, sealing gasket 9, insulation sleeve 10, gland nut 11, connection plug assembly 12, glass capsulation circle 13, glass 14.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is done further detailed explanation.
Referring to figure 1 – Fig. 2, a kind of electromagnetic flowmeter comprises flowtube 1, electrode assemblie 2 and display module 3; The two ends of said flowtube 1 are provided with flange 4, and the middle part is set with protective cover 5, and the outside of protective cover 5 is connected with display module 3 through fulcrum bar component 6; Set inside has the electrode tip holder 7 that is connected with flowtube 1; The set inside of electrode tip holder 7 has electrode assemblie 2, and an end of electrode assemblie 2 is positioned at the inside of electrode tip holder 7, and the other end extends to the inside of flowtube 1 behind lining 8;
One of special feature of the utility model is: electrode assemblie 2 is cross structure; Comprise into a single integrated structure top electrode 21, middle electrode 22 and bottom electrode 23; Lining 8 is an I-shaped structure, comprises into a single integrated structure last lining 81, middle lining 82 and following lining 83; Said lining 83 down matches with the inwall of flowtube 1; Last lining 81 matches with the bottom of electrode tip holder 7; Bottom electrode 23 is connected with the bottom of middle electrode 22 behind following lining 83, middle lining 82, last lining 81 successively; Be provided with sealing gasket 9 between the bottom of middle electrode 22 and the top of last lining 81, the outside of the top of middle electrode 22, top electrode 21 all is set with same insulation sleeve 10, matches with the gland nuts 11 that are positioned at electrode tip holder 7 inside in the outside of this insulation sleeve 10; Said top electrode 21 is electrically connected with display module 3 through signal wire.This design can improve the stability and the sealing effectiveness of this device.
The length of preferred lining 83 down is greater than the length of last lining 81.The length of less preferred more following lining 83 is three to six times of last lining 81 length.This design can improve the stability and the security of this device.
Embodiment:
A kind of electromagnetic flowmeter; Comprise flowtube 1, electrode assemblie 2 and display module 3, the two ends of flowtube 1 are provided with flange 4, and the middle part is set with protective cover 5; The outside of protective cover 5 is connected with display module 3 through fulcrum bar component 6; Set inside has the electrode tip holder 7 that is connected with flowtube 1, and the set inside of electrode tip holder 7 has electrode assemblie 2, and electrode assemblie 2 is cross structure; Comprise into a single integrated structure top electrode 21, middle electrode 22 and bottom electrode 23; Bottom electrode 23 is connected with the bottom of middle electrode 22 behind following lining 83, middle lining 82, last lining 81 (length of following lining 83 is greater than the length of last lining 81) successively, is provided with sealing gasket 9 between the top of the bottom of middle electrode 22 and last lining 81, and the outside of the top of middle electrode 22, top electrode 21 all is set with same insulation sleeve 10; The outside of this insulation sleeve 10 gland nuts 11 inner with being positioned at electrode tip holder 7 match, and top electrode 21 is electrically connected with connection plug assembly 12 in the display module 3 through signal wire.Therefore not only stability is better for the utility model, sealing is stronger, and degree of accuracy is higher, security is stronger.
The above is merely the preferred embodiments of the utility model; The protection domain of the utility model does not exceed with above-mentioned embodiment; As long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (4)
1. electromagnetic flowmeter; Comprise flowtube (1), electrode assemblie (2) and display module (3), the two ends of said flowtube (1) are provided with flange (4), and the middle part is set with protective cover (5); The outside of protective cover (5) is connected with display module (3) through fulcrum bar component (6); Set inside has the electrode tip holder (7) that is connected with flowtube (1), and the set inside of electrode tip holder (7) has electrode assemblie (2), and an end of electrode assemblie (2) is positioned at the inside of electrode tip holder (7); The other end extends to the inside of flowtube (1) behind lining (8), it is characterized in that:
Said electrode assemblie (2) is cross structure; Comprise into a single integrated structure top electrode (21), middle electrode (22) and bottom electrode (23); Lining (8) is an I-shaped structure, comprises into a single integrated structure last lining (81), middle lining (82) and following lining (83); Said lining (83) down matches with the inwall of flowtube (1); Last lining (81) matches with the bottom of electrode tip holder (7); Bottom electrode (23) is connected with the bottom of middle electrode (22) behind following lining (83), middle lining (82), last lining (81) successively; Be provided with sealing gasket (9) between the bottom of middle electrode (22) and the top of last lining (81); The top of middle electrode (22), the outside of top electrode (21) all are set with same insulation sleeve (10), and the outside of this insulation sleeve (10) gland nut (11) inner with being positioned at electrode tip holder (7) matches; Said top electrode (21) is electrically connected with display module (3) through signal wire.
2. a kind of electromagnetic flowmeter according to claim 1 is characterized in that: the length of said lining (83) down is greater than the length of last lining (81).
3. a kind of electromagnetic flowmeter according to claim 2 is characterized in that: the length of said following lining (83) is three to six times of last lining (81) length.
4. according to claim 1,2 or 3 described a kind of electromagnetic flowmeters; It is characterized in that: said display module (3) comprises back casing (31), middle shell (32) and procapsid (33); The two ends of middle shell (32) are connected with back casing (31), procapsid (33) respectively; The set inside of middle shell (32) has connection plug assembly (12); This connection plug assembly (12) is electrically connected with top electrode (21) through signal wire, and the position of nearly connection plug assembly (12) is provided with glass capsulation circle (13) in the procapsid (33), and the opposite side of this glass capsulation circle (13) is provided with glass (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204189546U CN202255494U (en) | 2011-10-28 | 2011-10-28 | Electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204189546U CN202255494U (en) | 2011-10-28 | 2011-10-28 | Electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255494U true CN202255494U (en) | 2012-05-30 |
Family
ID=46116721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204189546U Expired - Lifetime CN202255494U (en) | 2011-10-28 | 2011-10-28 | Electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202255494U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535124A (en) * | 2014-12-30 | 2015-04-22 | 哈尔滨工业大学 | Underground electromagnetic flow meter of oil field |
| CN109163770A (en) * | 2018-09-27 | 2019-01-08 | 东营方圆有色金属有限公司 | A kind of hot matte flow measurement device |
| CN109682431A (en) * | 2017-10-18 | 2019-04-26 | 桓达科技股份有限公司 | The Security Design Methods of electromagnetic type flow meter |
-
2011
- 2011-10-28 CN CN2011204189546U patent/CN202255494U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535124A (en) * | 2014-12-30 | 2015-04-22 | 哈尔滨工业大学 | Underground electromagnetic flow meter of oil field |
| CN104535124B (en) * | 2014-12-30 | 2018-01-05 | 哈尔滨工业大学 | Oil field well electromagnetic flowmeter |
| CN109682431A (en) * | 2017-10-18 | 2019-04-26 | 桓达科技股份有限公司 | The Security Design Methods of electromagnetic type flow meter |
| CN109682431B (en) * | 2017-10-18 | 2020-12-29 | 桓达科技股份有限公司 | Safety design method of electromagnetic flowmeter |
| CN109163770A (en) * | 2018-09-27 | 2019-01-08 | 东营方圆有色金属有限公司 | A kind of hot matte flow measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |