CN2502240Y - Magnetic induction helical wing flowmeter - Google Patents
Magnetic induction helical wing flowmeter Download PDFInfo
- Publication number
- CN2502240Y CN2502240Y CN 01251924 CN01251924U CN2502240Y CN 2502240 Y CN2502240 Y CN 2502240Y CN 01251924 CN01251924 CN 01251924 CN 01251924 U CN01251924 U CN 01251924U CN 2502240 Y CN2502240 Y CN 2502240Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- utility
- model
- flowmeter
- rectification section
- 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
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a handing device on slope which comprises a shell body, a resting base which is arranged on the shell body, a front commuting section and a rear commuting section which are both arranged in the shell body, a sensing circuit, an impeller which is arranged on the impeller axis between the front commuting section and the rear commuting section and a sensing magnet which is arranged on the impeller. The top of the resting base can be continuously connected with a microprocessor and a luminous diode display which are used for accounting and displaying the flux value. The utility model utilizes the changes of the magnetic flux which is generated by the rotating of the impeller and senses the rotating states of the circuit measuring impeller, thereby realizing the measurement to the liquid flux. The utility model has simple structure, non-mechanical driving mechanism and non-mechanical abrasion; thereby, the wastage of the friction of the utility model is small, the sensitivity is high, the precision is high and the using life is long.
Description
Technical field
The utility model belongs to flowmeter, is specifically related to the spiral type flowmeter.
Background technology
At present the spiral type flowmeter all is a mechanical structure, and its principle is: fluid flow through the preceding rectification section of flowmeter drive before rectification section and axle, axle is passed to meter by a cover mechanical driving device with the kinetic energy of water and is measured.Owing to there is mechanically operated frictional dissipation, flowmeter sensitivity is on the low side; Owing to mechanical wear, flowmeter precision in use for some time can reduce simultaneously; Therefore there is gauging loss in this flowmeter, causes the waste of water resource.
Summary of the invention
The purpose of this utility model is to design a kind of spiral type flowmeter that measures by the magnetic strength survey, to solve the problem that above-mentioned mechanical spiral type flowmeter exists.
The utility model is achieved in that magnetic strength survey spiral type flowmeter comprises housing, the holder on the housing, and preceding rectification section of establishing in the housing and back rectification section, sensing circuit is established impeller on the impeller shaft between the rectification section of front and back, establishes induced magnet on the impeller.Can connect microprocessor and LCD display on the holder, in order to calculate and the demonstration flow value.This flowmeter utilizes the magnetic flux change that wheel rotation produces and the rotation situation of magnetic strength slowdown monitoring circuit metering impeller, thereby realizes the measurement of fluid flow.It is simple in structure, does not have mechanical drive mechanism, does not have the machinery wearing and tearing.Therefore the frictional dissipation of this flowmeter is little, highly sensitive, precision height, long service life.
Description of drawings
Fig. 1 magnetic strength is surveyed the structural representation of spiral type flowmeter
Fig. 2 magnetic strength is surveyed a spiral type flowmeter left side and is looked synoptic diagram
Fig. 3 magnetic strength slowdown monitoring circuit figure
Embodiment
As shown in Figure 1, 2: be holder 2 on the housing 1, holder 2 is used to connect microprocessor and LCD display (not shown).Rectification section 3 and back rectification section 4 before being provided with in the housing 1.Blade 6 before preceding rectification section 3 comprises on flow guiding head 5 and the preceding flow guiding head; Back rectification section 4 comprises the blade 8 on back flow guiding head 7 and the back flow guiding head.Before coupling shaft 9 between flow guiding head 5 and the back flow guiding head 7, connect impeller 10 on the axle 9, establish magnet 11 on the impeller 10, magnet 11 be located at spools 9 around.Between axle 9 and the back flow guiding head 7 seal cavity 12 is arranged, sensing circuit 15 is located in the flow guiding head 7 of back, and promptly sensing circuit is located at the pivot nest place in magnet axle center.
Sensing circuit in the present embodiment adopts a kind of basic circuit structure, and it surveys chip and non-essential resistance R by magnetic strength
b, R
LConstitute, its output terminal connects CPU, and its input power supply can be an external power source, also can directly establish battery in the flow guiding head of back.As shown in Figure 3
This flowmeter and traditional mechanical meters are carried out remolding sensitivity, the results are shown in Table one:
Table one:
| Flow m 3/hr | 80 millimeters bores | 100 millimeters bores | ||
| Tradition | The utility model | Tradition | The utility model | |
| Minimum flow Q mihn | 1.20 | 0.24 | 1.80 | 0.36 |
| Boundary flow Q t | 8.00 | 0.60 | 12.00 | 0.90 |
| Rated flow Q n | 40 | 40 | 60 | 60 |
| Maximum flow Q max | 80 | 80 | 120 | 120 |
The accuracy requirement of minimum flow is ± 5%, the boundary flow, rated flow and maximum flow accuracy requirement be ± 2%.
The minimum flow that more than shows the utility model metering in the table illustrates that much smaller than traditional mechanical formula flowmeter its clever lightness is much higher than traditional mechanical flow meter.
100 millimeters bore magnetic strengths survey the spiral type flowmeter accuracy and pressure loss test sees Table two;
Table two:
| Numbering | Measuring tank volume m 3 | Metered volume m 3 | Flow m 3/hr | Error % | Pressure loss kgf/cm 2 |
| 1 | 0.100 | 0.101 | 0.35 | +1 | 0.0 |
| 2 | 0.200 | 0.203 | 0.655 | +1.5 | 0.0 |
| 3 | 2.002 | 2.017 | 12 | +0.7 | 0.0 |
| 4 | 3.004 | 3.017 | 18 | +0.4 | 0.0 |
| 5 | 6.027 | 6.011 | 30 | -0.2 | 0.05 |
| 6 | 9.985 | 10.085 | 60 | +1 | 0.1 |
| 7 | 14.973 | 14.934 | 120 | -0.26 | 0.3 |
More than the table in show of the present utility model highly sensitive, the precision height.
Claims (3)
1, a kind of magnetic strength is surveyed the spiral type flowmeter, and it comprises housing, the holder on the housing, and preceding rectification section of establishing in the housing and back rectification section, sensing circuit is established impeller on the impeller shaft before and after it is characterized in that between the rectification section, establishes induced magnet on the impeller.
2, magnetic strength is surveyed the spiral type flowmeter according to claim 1, it is characterized in that impeller shaft is connected with the back flow guiding head of back rectification section, between impeller shaft and the back flow guiding head seal cavity is arranged, and sensing circuit is located in the flow guiding head of back.
3, survey the spiral type flowmeter as magnetic strength as described in the claim 2, it is characterized in that induced magnet be located at impeller shaft around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251924 CN2502240Y (en) | 2001-09-20 | 2001-09-20 | Magnetic induction helical wing flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251924 CN2502240Y (en) | 2001-09-20 | 2001-09-20 | Magnetic induction helical wing flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2502240Y true CN2502240Y (en) | 2002-07-24 |
Family
ID=33661745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01251924 Expired - Fee Related CN2502240Y (en) | 2001-09-20 | 2001-09-20 | Magnetic induction helical wing flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2502240Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314793A (en) * | 2017-06-19 | 2017-11-03 | 南京水门电子有限公司 | Detachable and combination type large-diameter water meter |
-
2001
- 2001-09-20 CN CN 01251924 patent/CN2502240Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314793A (en) * | 2017-06-19 | 2017-11-03 | 南京水门电子有限公司 | Detachable and combination type large-diameter water meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2502240Y (en) | Magnetic induction helical wing flowmeter | |
| CN104990597A (en) | Magnetic pulse electronic water meter | |
| CN204493043U (en) | A kind of marine fuel oil managing and control system | |
| CN208587315U (en) | Clearance flow experimental provision between centrifugal pump mouth ring | |
| CN105136220A (en) | Conductive liquid volume and flow detecting device | |
| CN203224507U (en) | Water flow velocity measurer | |
| CN213688207U (en) | Two-wire system non-contact angle sensor | |
| CN108678971A (en) | Clearance flow experimental provision between centrifugal pump mouth ring | |
| CN2522831Y (en) | High-sensitivity cold-water meter | |
| CN210833680U (en) | Turbine flowmeter with parabolic flow guiding device | |
| CN2289210Y (en) | Electronic water meter | |
| CN2909262Y (en) | DC dynamo tachometer | |
| CN105091961A (en) | An electromagnetic flow meter characterized by power supply optimization | |
| CN201945409U (en) | Ultrasonic heat meter | |
| CN2537000Y (en) | Digital fuel gauge contactless digital fuel meter | |
| CN206919940U (en) | Intelligent integral gas turbine meter | |
| CN2555499Y (en) | Insertion two-way turbine flowmeter | |
| CN205216774U (en) | Water drive measurement mixes doser | |
| CN110567538A (en) | Turbine flowmeter with parabolic flow guiding device | |
| CN2083743U (en) | Photoelectric flow rate transducer | |
| RU2189015C1 (en) | Gas or liquid float-turbine meter | |
| CN204214482U (en) | A kind of sensor of monochromatic light flow instrument | |
| CN202869551U (en) | Water meter vane wheel box | |
| CN215066767U (en) | Acoustic flow field on-line measuring device | |
| CN2591579Y (en) | Gas turbin flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |