CN202255476U - Electromagnetic type vortex shedding flowmeter - Google Patents
Electromagnetic type vortex shedding flowmeter Download PDFInfo
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- CN202255476U CN202255476U CN2011204190261U CN201120419026U CN202255476U CN 202255476 U CN202255476 U CN 202255476U CN 2011204190261 U CN2011204190261 U CN 2011204190261U CN 201120419026 U CN201120419026 U CN 201120419026U CN 202255476 U CN202255476 U CN 202255476U
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- briquetting
- flowtube
- protective sleeve
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- pressing block
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Abstract
An electromagnetic type vortex shedding flowmeter comprises a display part and a measurement part. The display part comprises a support rod, a probe, a big pressing block, a small pressing block and a flow tube. One end of the support rod penetrates through a locking nut to be connected with the lower end of a middle shell body, and the other end of the support rod is connected with the upper lateral wall of the flow tube through a support rod seat. The big pressing block is disposed inside the support rod seat, and the bottom end of the big pressing block is matched with the top end of the small pressing block. The bottom end of the small pressing block is matched with a protective sleeve through a gasket, and a middle bump and a thin needle end penetrate through the inside of the protective sleeve. One end of the thin needle end extends to the inside of the flow tube, and the other end of the thin needle end is connected with a thick needle end through the middle bump. The thick needle end is fixedly connected with the top end of the big pressing block and a signal line through screws, and the other end of the signal line is electrically connected with a connecting plug in the display part. A magnet and a magnet gland nut are arranged on the lower lateral wall of the flow tube. The design is high in safety, stability and accuracy and has good sealing performance.
Description
Technical field
The utility model relates to a kind of vortex shedding flow meter, relates in particular to a kind of magnetic vortex street flowmeter, specifically is applicable to the signal stabilization that improves magnetic vortex street flowmeter.
Background technology
At present, vortex shedding flow meter is mainly used in the flow measurement of industrial pipeline medium fluid, like multiple media such as gas, liquid, steams.Be characterized in that the pressure loss is little, range ability is big, and precision is high; When measuring the operating mode volumetric flow rate, receive fluid density, pressure, temperature hardly, viscosity is isoparametric influences; And do not have the moving machinery part, not only reliability is high, maintenance is little, and the instrument parameter can be steady in a long-term.Vortex shedding flow meter adopts piezoelectric stress formula sensor, and reliability is high, can in the operating temperature range of 250 ℃ of-20 ℃ –, work; Existing mock standard signal; Digital pulse signal output also being arranged, be prone to and the supporting use of digital display circuit such as computing machine, is a kind of more advanced, desirable surveying instrument.Common have two kinds of plug-in type vortex shedding flow meter and integrated vortex shedding flow meters of temperature and pressure compensation.
The Chinese patent publication number is CN1831487A, and the patent of invention that open day is on September 13rd, 2006 discloses a kind of magnetic vortex street flowmeter, and this flowmeter is provided with triangular prism in flowtube; At said trequetrous back probe is set; With the outer setting permanent magnet of the flowtube of probe corresponding position, constitute signal transducer with said probe and permanent magnet, probe is the needle-like conductive body; Vertically be suspended in the central authorities of flowtube; The afterbody of probe places the outside of flowtube, and is connected with binding post, and detectable signal is drawn on binding post.Though the influence that low, the axial nothing of this invention cost is beated because its probe only fixes through a briquetting, stationarity a little less than; Be prone to when not only using rock, security is not high, and is prone to the stability of infringement signal, thereby reduce measuring accuracy; Simultaneously, lack essential sealing around the probe and be provided with, a little less than the security of probe with protection; Be subject to the infringement of environment to be measured, in addition, magnet does not have essential fixedly installing; Be prone in the use rock, even come off, further reduce the stability of signal.
Summary of the invention
The purpose of the utility model is to overcome defective and the problem that the stability that exists in the prior art is lower, security is more weak, and the magnetic vortex street flowmeter that a kind of stability is higher, security is stronger is provided.
For realizing above purpose; The technical solution of the utility model is: a kind of magnetic vortex street flowmeter; Comprise display part and measurement section, said display part comprises back casing, middle shell and procapsid, and the right ends of middle shell is connected with back casing, procapsid respectively; Said measurement section comprises pole, probe and flowtube; One end of pole connects through the lower ends of fastening screw nut and middle shell, and the other end is connected with the upper side wall of flowtube through a pole socket, and the lower wall of flowtube is provided with magnet;
Said measurement section also comprises big briquetting and little briquetting, and probe comprises bodkin end, middle projection and fine needle end; The set inside of said pole socket has big briquetting; Matching with the top of little briquetting in the bottom of big briquetting, matches with protective sleeve through pad in the bottom of little briquetting, and the inside of protective sleeve is run through and is provided with middle projection and fine needle end; One end of fine needle end extends to the inside of flowtube; The other end is connected with the bodkin end through middle projection, and the bodkin end is fixedly connected through top, the signal wire of screw with big briquetting, and the other end of signal wire is electrically connected with display part.
Be provided with the protective sleeve O-ring seal between said protective sleeve and the upper side wall, projection O-ring seal in being provided with between middle projection and the protective sleeve is provided with big briquetting O-ring seal between a big briquetting and the pole socket.
The lower wall of said flowtube is provided with the magnet gland nut, and said magnet is fixedly connected with lower wall through the magnet gland nut; The right ends of said flowtube is provided with asbestos pad.
Be provided with battery component in the said back casing; Battery component is fixedly connected with middle shell through screw; The set inside of middle shell has pressing plate, wiring board and connection plug, and the two ends of pressing plate are fixedly connected with middle shell through the copper post, and the middle part is connected with wiring board through plastic column; Wiring board is provided with connection plug, and connection plug is electrically connected with battery component, signal wire respectively.
Compared with prior art, the beneficial effect of the utility model is:
1, owing to around probe, is provided with big briquetting and little briquetting in a kind of magnetic vortex street flowmeter of the utility model; During use, big briquetting, little briquetting match with protective sleeve, pad, together probe are fixed; Increased the stationarity of probe greatly; Guarantee can not rock when probe uses, improved the stability and the security of signal, and then guaranteed measuring accuracy.Therefore the utility model is not only stable higher, and security is stronger.
2, owing to be designed with a large amount of packoffs in a kind of magnetic vortex street flowmeter of the utility model; Like protective sleeve O-ring seal, middle projection O-ring seal, big briquetting O-ring seal etc.; The sealing of those these devices of O-ring seal design can the raising greatly; Guarantee that this device is not influenced by environment to be measured in use or damages, and guarantees the degree of accuracy of measuring.Therefore not only security is stronger for the utility model, and degree of accuracy is higher.
3, the lower wall owing to flowtube in a kind of magnetic vortex street flowmeter of the utility model is provided with the magnet gland nut; During use, magnet is fixedly connected with lower wall through the magnet gland nut, and stationarity is stronger; Difficult drop-off in the use can be guaranteed the stable of signal.Therefore the utility model is stable higher.
Description of drawings
Fig. 1 is the front view of the utility model.
Fig. 2 is the left view of the utility model.
Among the figure: display part A; Measurement section B; Pole 1; Probe 2; Bodkin end 21; Middle projection 22; Fine needle end 23; Middle projection O-ring seal 24; Flowtube 3; Upper side wall 31; Lower wall 32; Asbestos pad 33; Magnet 4; Magnet gland nut 41; Big briquetting 5; Big briquetting O-ring seal 51; Little briquetting 6; Pad 61; Protective sleeve 7; Protective sleeve O-ring seal 71; Signal wire 8; Back casing 9; Middle shell 10; Procapsid 11; Fastening screw nut 12; Prop up pole socket 13; Battery component 14; Pressing plate 15; Wiring board 16; Connection plug 17; Copper post 18; Plastic column 19.
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 magnetic vortex street flowmeter; Comprise display part A and measurement section B, said display part A comprises back casing 9, middle shell 10 and procapsid 11, and the right ends of middle shell 10 is connected with back casing 9, procapsid 11 respectively; Said measurement section B comprises pole 1, probe 2 and flowtube 3; One end of pole 1 connects through the lower ends of fastening screw nut 12 with middle shell 10, and the other end is connected with the upper side wall 31 of flowtube 3 through a pole socket 13, and the lower wall 32 of flowtube 3 is provided with magnet 4;
One of special feature of the utility model is: measurement section B also comprises big briquetting 5 and little briquetting 6, and probe 2 comprises bodkin end 21, middle projection 22 and fine needle end 23; The set inside of said pole socket 13 has big briquetting 5; Matching with the top of little briquetting 6 in the bottom of big briquetting 5, matches with protective sleeve 7 through pad 61 in the bottom of little briquetting 6, and the inside of protective sleeve 7 is run through and is provided with middle projection 22 and fine needle end 23; One end of fine needle end 23 extends to the inside of flowtube 3; The other end is connected with bodkin end 21 through middle projection 22, and bodkin end 21 is fixedly connected through top, the signal wire 8 of screw with big briquetting 5, and the other end of signal wire 8 is electrically connected with display part A.This design can improve the security and stability of this device.
Be provided with protective sleeve O-ring seal 71 between preferred protective sleeve 7 and the upper side wall 31, projection O-ring seal 24 in being provided with between middle projection 22 and the protective sleeve 7 is provided with big briquetting O-ring seal 51 between a big briquetting 5 and the pole socket 13.This design can improve the sealing effectiveness of this device, guarantees the degree of accuracy of measuring.
The lower wall 32 of preferred streams buret 3 is provided with magnet gland nut 41, and said magnet 4 is fixedly connected with lower wall 32 through magnet gland nut 41; The right ends of said flowtube 3 is provided with asbestos pad 33.This design can improve measuring stability.
Be provided with battery component 14 in the preferred back casing 9; Battery component 14 is fixedly connected with middle shell 10 through screw; The set inside of middle shell 10 has pressing plate 15, wiring board 16 and connection plug 17, and the two ends of pressing plate 15 are fixedly connected with middle shell 10 through copper post 18, and the middle part is connected with wiring board 16 through plastic column 19; Wiring board 16 is provided with connection plug 17, and connection plug 17 is electrically connected with battery component 14, signal wire 8 respectively.This design can reduce the error of measuring-signal in transmission, helps improving the degree of accuracy of measurement.
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. magnetic vortex street flowmeter; Comprise display part (A) and measurement section (B); Said display part (A) comprises back casing (9), middle shell (10) and procapsid (11), and the right ends of middle shell (10) is connected with back casing (9), procapsid (11) respectively, and said measurement section (B) comprises pole (1), probe (2) and flowtube (3); One end of pole (1) connects through the lower ends of fastening screw nut (12) with middle shell (10); The other end is connected with the upper side wall (31) of flowtube (3) through a pole socket (13), and the lower wall (32) of flowtube (3) is provided with magnet (4), it is characterized in that:
Said measurement section (B) also comprises big briquetting (5) and little briquetting (6), and probe (2) comprises bodkin end (21), middle projection (22) and fine needle end (23); The set inside of said pole socket (13) has big briquetting (5); Match with the top of little briquetting (6) in the bottom of big briquetting (5); Match with protective sleeve (7) through pad (61) in the bottom of little briquetting (6); The inside of protective sleeve (7) is run through and is provided with middle projection (22) and fine needle end (23), and an end of fine needle end (23) extends to the inside of flowtube (3), and the other end is connected with bodkin end (21) through middle projection (22); Bodkin end (21) is fixedly connected through top, the signal wire (8) of screw with big briquetting (5), and the other end of signal wire (8) is electrically connected with display part (A).
2. a kind of magnetic vortex street flowmeter according to claim 1; It is characterized in that: be provided with protective sleeve O-ring seal (71) between said protective sleeve (7) and the upper side wall (31); Projection O-ring seal (24) in being provided with between middle projection (22) and the protective sleeve (7) is provided with big briquetting O-ring seal (51) between a big briquetting (5) and the pole socket (13).
3. a kind of magnetic vortex street flowmeter according to claim 1; It is characterized in that: the lower wall (32) of said flowtube (3) is provided with magnet gland nut (41), and said magnet (4) is fixedly connected with lower wall (32) through magnet gland nut (41); The right ends of said flowtube (3) is provided with asbestos pad (33).
4. according to claim 1,2 or 3 described a kind of magnetic vortex street flowmeters; It is characterized in that: be provided with battery component (14) in the said back casing (9); Battery component (14) is fixedly connected with middle shell (10) through screw; The set inside of middle shell (10) has pressing plate (15), wiring board (16) and connection plug (17), and the two ends of pressing plate (15) are fixedly connected with middle shell (10) through copper post (18), and the middle part is connected with wiring board (16) through plastic column (19); Wiring board (16) is provided with connection plug (17), and connection plug (17) is electrically connected with battery component (14), signal wire (8) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204190261U CN202255476U (en) | 2011-10-28 | 2011-10-28 | Electromagnetic type vortex shedding flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204190261U CN202255476U (en) | 2011-10-28 | 2011-10-28 | Electromagnetic type vortex shedding flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255476U true CN202255476U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204190261U Expired - Fee Related CN202255476U (en) | 2011-10-28 | 2011-10-28 | Electromagnetic type vortex shedding flowmeter |
Country Status (1)
| Country | Link |
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| CN (1) | CN202255476U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768095A (en) * | 2016-12-26 | 2017-05-31 | 中电华辰（天津）精密测器股份公司 | High accuracy magneto-electric vortex-shedding meter |
| CN110411523A (en) * | 2019-07-30 | 2019-11-05 | 麦克传感器股份有限公司西安分公司 | A kind of high-voltage electromagnetic flow meter electrode packaging system |
| WO2022150943A1 (en) * | 2021-01-12 | 2022-07-21 | Micro Motion, Inc. | Interface with improved accessibility |
-
2011
- 2011-10-28 CN CN2011204190261U patent/CN202255476U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768095A (en) * | 2016-12-26 | 2017-05-31 | 中电华辰（天津）精密测器股份公司 | High accuracy magneto-electric vortex-shedding meter |
| CN110411523A (en) * | 2019-07-30 | 2019-11-05 | 麦克传感器股份有限公司西安分公司 | A kind of high-voltage electromagnetic flow meter electrode packaging system |
| WO2022150943A1 (en) * | 2021-01-12 | 2022-07-21 | Micro Motion, Inc. | Interface with improved accessibility |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20141028 |
|
| EXPY | Termination of patent right or utility model |