CN202382775U - Turbine flowmeter - Google Patents
Turbine flowmeter Download PDFInfo
- Publication number
- CN202382775U CN202382775U CN2011205165233U CN201120516523U CN202382775U CN 202382775 U CN202382775 U CN 202382775U CN 2011205165233 U CN2011205165233 U CN 2011205165233U CN 201120516523 U CN201120516523 U CN 201120516523U CN 202382775 U CN202382775 U CN 202382775U
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- China
- Prior art keywords
- impeller
- permanent
- sensor
- magnet steel
- fluid passage
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- 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 a turbine flowmeter. The turbine flowmeter comprises a casing, wherein a horizontal fluid channel is formed in the casing; a cylinder body is arranged in the fluid channel; an annular clearance is formed between the cylinder body and the fluid channel; the axis of the cylinder body is in accordance with the fluid channel; an impeller is supported and mounted in the cylinder body through a bearing component; a helical blade is processed on the impeller; a permanent steel magnet is arranged in the impeller; the direction of the N/S pole of the permanent steel magnet is perpendicular to the axis of the fluid channel; and a sensor is mounted on the casing and exactly faces to the permanent steel magnet. The turbine flowmeter is accurate in metering and safe in operation, has a wider application range and is particularly suitable for metering low-flow-rate and tiny-flux fluid.
Description
Technical field:
The utility model relates to the flowmeter technology field, relates in particular to a kind of turbo flow meter.
Background technology:
Referring to Fig. 1: comprise flowmeter shell 1 on the common existing turbo flow meter structure; Be installed in magnetoelastic transducer on the flowmeter shell 1; Magnetoelastic transducer is made up of sensor 3 and permanent-magnet steel 2 again; And in flowmeter shell 1, directly having assembled board-type blade wheel 4, straight blade wheel 4 is supported on the center line of metering cavity 6 by bearing assembly 5.At the promotion lower straight-plate blade movement of fluid, the magnetic line of force of straight blade cutting permanent-magnet steel 4 during running, sensor 3 receives and responds to into pulse signal and send, and the flow of this pulse signal and fluid is proportional, has just obtained data on flows through the acquisition pulse signal.
Usually the conventional turbine flowmeter that designs; The fluid board-type blade of flowing through was taken turns 4 o'clock; Board-type blade wheel 4 has an incident angle relatively, thereby when board-type blade wheel 4 rotates, has both produced frictional resistance, produces viscous resistance again; And these two resistances all are directly proportional with the viscosity of liquid, and promptly the big more resistance of viscosity is also just big more.
Owing to directly assemble board-type blade wheel 4 in the flowmeter shell 1; It is bigger that housing 1 and board-type blade are taken turns 4 gap between them; Therefore when dielectric viscosity was big, the board-type blade was taken turns 4 rotational resistances and is increased, and medium has flowed out in very big gap; This moment, signal and flow just can not become proportionate relationship, caused great error in dipping.
Because the permanent-magnet steel 2 in the small-bore magnetoelastic transducer is relatively large to the magnetic resistance moment that board-type blade wheel 4 produces through low discharge the time, also influenced the normal rotation of board-type blade wheel 4 simultaneously.
In order to guarantee the metering instrument accuracy, the flow velocity of generally necessary enlargement discharge increases the expulsive force to board-type blade wheel, so the conventional turbine flowmeter is applicable to the metering under heavy caliber, the big flow operating mode situation.
The utility model content:
The purpose of the utility model provides a kind of turbo flow meter, and structural design is novel, has improved the accurate measurement and the safety in operation of flowmeter, and range of application is wider, the fluid metering of the low flow velocity tiny flow quantity of particularly suitable.
The technical scheme of the utility model is following:
Turbo flow meter comprises the fluid passage of the level that is provided with in housing, the housing it is characterized in that: be provided with cylindrical shell in the described fluid passage; Tubular axis is consistent with the fluid passage, through the bearing assembly support impeller is installed in the cylindrical shell, is processed with helical blade on the impeller; Be provided with the gap between helical blade and the cylindrical shell, be provided with permanent-magnet steel in the impeller, the N/S utmost point of permanent-magnet steel points to and the fluid passage axis normal; On the described housing sensor is installed, sensor is over against described permanent-magnet steel.
Described turbo flow meter is characterized in that: described sensor adopts electromagnetic sensor.
Cylindrical shell also can be called gauge line.
The utility model has the advantages that:
1, impeller has been adopted in design: fluid is during through any different radii on the helical blade; Flow direction is all parallel with the angle of helical blade; Making that fluid is identical with the impeller sense of rotation does not have angle, so the frictional resistance that fluid produces on helical blade reduces greatly.
2, bury the casting permanent-magnet steel in the impeller of design; Permanent-magnet steel and impeller one; Even and continuous running; Sensor receives pole change and converts the pulse of continuous homogeneous electric signal into, and the rotating speed of this pulse and permanent-magnet steel is proportional, and the rotating speed of permanent-magnet steel is proportional with the flow of fluid.Therefore improved the accurate measurement and the safety in operation of flowmeter, so range of application is wider, the fluid metering of the low flow velocity tiny flow quantity of particularly suitable.
3, the two measurement chamber structures (gap, cylinder lumen between cylindrical shell and the fluid passage) that comprise the general measurement chamber of volumeter have been adopted in design; The gap of promptly measuring between the helical blade on cavity and the impeller can be controlled; Be able to guarantee that the circulation of fluid is relatively stable, and then the metering accuracy of dependable flow meter and precision stability.
Description of drawings:
Fig. 1 is the principle schematic of conventional turbine flowmeter.
Fig. 2 is the structural representation of the utility model.
Fig. 3 is the impeller cut-open view of the utility model.
Fig. 4 is the principle schematic of the utility model.
Embodiment:
Referring to Fig. 2,3,4:
Turbo flow meter comprises the fluid passage 2 of the level that is provided with in housing 1, the housing 1 being provided with cylindrical shell 3 in the fluid passage; Cylindrical shell 3 axis are consistent with fluid passage 2, are rotatablely equipped with impeller 6 through bearing assembly 5 supports in the cylindrical shell 3, are processed with helical blade 7 on the impeller 6; Be provided with gap 4 between helical blade 7 and the cylindrical shell 3; Degree of accuracy in helical blade 7 and the cylindrical shell 3 inwall process requires to reach the centimillimetre class precision, buries in the impeller 6 and is cast with permanent-magnet steel 8, and the N/S utmost point of permanent-magnet steel 8 points to and fluid passage 2 axis normal; Sensor 9 is installed on the housing 1, and sensor 9 is over against permanent-magnet steel 8.
The principle of work explanation:
Claims (2)
1. turbo flow meter comprises the fluid passage of the level that is provided with in housing, the housing it is characterized in that: be provided with cylindrical shell in the described fluid passage; Tubular axis is consistent with the fluid passage; Through the bearing assembly support impeller is installed in the cylindrical shell, is processed with helical blade on the impeller, be provided with the gap between helical blade and the cylindrical shell; Be provided with permanent-magnet steel in the impeller; The N/S utmost point of permanent-magnet steel points to and the fluid passage axis normal, on the described housing sensor is installed, and sensor is over against described permanent-magnet steel.
2. turbo flow meter according to claim 1 is characterized in that: described sensor adopts electromagnetic sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205165233U CN202382775U (en) | 2011-12-13 | 2011-12-13 | Turbine flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205165233U CN202382775U (en) | 2011-12-13 | 2011-12-13 | Turbine flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202382775U true CN202382775U (en) | 2012-08-15 |
Family
ID=46631271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205165233U Expired - Fee Related CN202382775U (en) | 2011-12-13 | 2011-12-13 | Turbine flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202382775U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926741A (en) * | 2012-11-22 | 2013-02-13 | 中国石油天然气股份有限公司 | Rotational flow booster for turbine flow meter |
| CN102996390A (en) * | 2012-12-26 | 2013-03-27 | 安徽省锐凌计量器制造有限公司 | Quantitative metering pump |
| CN104764497A (en) * | 2015-03-19 | 2015-07-08 | 沈阳市航宇星仪表有限责任公司 | Dynamic pressure shunting high-speed gyroscope flow metering table |
| CN105674071A (en) * | 2016-01-18 | 2016-06-15 | 东莞市闻誉实业有限公司 | Multifunctional lamp |
| CN105674229A (en) * | 2016-01-18 | 2016-06-15 | 东莞市闻誉实业有限公司 | Led lamp |
| CN105890682A (en) * | 2015-01-14 | 2016-08-24 | 金祖贻 | Electromagnetic induction flowmeter |
-
2011
- 2011-12-13 CN CN2011205165233U patent/CN202382775U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926741A (en) * | 2012-11-22 | 2013-02-13 | 中国石油天然气股份有限公司 | Rotational flow booster for turbine flow meter |
| CN102996390A (en) * | 2012-12-26 | 2013-03-27 | 安徽省锐凌计量器制造有限公司 | Quantitative metering pump |
| CN102996390B (en) * | 2012-12-26 | 2015-12-02 | 安徽省锐凌计量器制造有限公司 | A kind of measuring fixed amount pump |
| CN105890682A (en) * | 2015-01-14 | 2016-08-24 | 金祖贻 | Electromagnetic induction flowmeter |
| CN104764497A (en) * | 2015-03-19 | 2015-07-08 | 沈阳市航宇星仪表有限责任公司 | Dynamic pressure shunting high-speed gyroscope flow metering table |
| CN104764497B (en) * | 2015-03-19 | 2018-01-30 | 辽宁航宇星物联仪表科技有限公司 | A kind of dynamic pressure partial high speed gyro flow meter |
| CN105674071A (en) * | 2016-01-18 | 2016-06-15 | 东莞市闻誉实业有限公司 | Multifunctional lamp |
| CN105674229A (en) * | 2016-01-18 | 2016-06-15 | 东莞市闻誉实业有限公司 | Led lamp |
| CN105674229B (en) * | 2016-01-18 | 2019-01-08 | 东莞市闻誉实业有限公司 | LED lamp |
| CN105674071B (en) * | 2016-01-18 | 2019-04-16 | 东莞市闻誉实业有限公司 | Multifunctional lamp |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20191213 |