CN201060209Y - Novel portable propeller current velocity sensor - Google Patents
Novel portable propeller current velocity sensor Download PDFInfo
- Publication number
- CN201060209Y CN201060209Y CNU2007200239272U CN200720023927U CN201060209Y CN 201060209 Y CN201060209 Y CN 201060209Y CN U2007200239272 U CNU2007200239272 U CN U2007200239272U CN 200720023927 U CN200720023927 U CN 200720023927U CN 201060209 Y CN201060209 Y CN 201060209Y
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- CN
- China
- Prior art keywords
- flow sensor
- revolves
- guide shell
- oar
- kuppe
- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
- G01P5/06—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model provides a novel portable propeller flow speed sensor which is characterized in that a flow guiding cylinder and a flow guiding cover are added on the prior flow speed sensor, the anti-jamming capacity of the system is increase greatly, and the precision of the measurement is increased effectively. The utility model has simple structure, light and convenient usage, is stable and reliable, can be widely used in flow speed flux spot measuring field of the open channel in the field of the hydrology station, factory and mine, environmental protection monitoring station, in-sea volume of the land-based sources sewage monitoring, farmland drainage and irrigation, hydro-geological surveys and other departments. The application prospect is wide.
Description
Technical field
The utility model relates to a kind of flow sensor, specifically, relates to a kind of novel portable oar flow sensor that revolves.
Background technology
Flow sensor is a kind of instrument of measuring the flowing velocity of water body, and the sensor of water volume flow rates such as present existing measurement rivers and lakes and open channel has machinery, electrical measurement and ultrasonic three types.Mechanical type has rotary propeller type, Spiralism type and rotary cup flow sensor based on rotator type.The rotary propeller type flow sensor mainly comprises pedestal, impeller, flow-rate impulse switching device and display, impeller is installed on the impeller shaft, the impeller shaft two ends are connected on the pedestal, impeller rotates under fluid impact, dragging rotating shaft simultaneously rotates, the flow-rate impulse switching device is installed: magnet steel and tongue tube respectively on rotating shaft and pivoted housing, magnet steel rotates with rotating shaft, every close tongue tube once, closing contact is then connected circuit and sent signal one time: display screen then is according to the gained signal, and is treated with the demonstration of light emitting diode numeral.The deficiency of the rotary propeller type flow sensor of this structure is: 1, poor anti jamming capability, detected fluid is had relatively high expectations, and do not take into full account the influence of turbulent flow to sensor measurement, it is high and unstable to start flow velocity; 2, the axle and the face that the is connected to way of contact of bearing of existing rotary propeller type flow sensor, friction force is big, has influenced the sensitivity of sensor, has reduced accuracy of measurement, and reliability is relatively poor; 3, structural volume is big, heaviness, and inconvenience is used and is carried.
The utility model content
Utility model purpose of the present utility model is to provide a kind of does not have specific (special) requirements to detected fluid, the portable oar flow sensor that revolves that the scope of application is wide, measuring accuracy is high, antijamming capability is strong, easy to use.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of novel portable oar flow sensor that revolves comprises impeller, and measuring staff is characterized in that: also comprise the guide shell of hollow, described measuring staff is connected with guide shell, and described impeller is contained in the guide shell inner chamber.
Further, the described oar flow sensor that revolves also comprises impeller shaft, after-poppet, and described impeller is contained on the impeller shaft, and the rear end of impeller shaft is contained on the after-poppet by fixing device, and described after-poppet is installed in the rear end of guide shell inner chamber.
Further, the described oar flow sensor that revolves also comprises kuppe, fore-stock, and described fore-stock is installed in the front end of guide shell inner chamber, and described kuppe is installed on the fore-stock, the kuppe center is equipped with first jewel bearing, and the front end of described impeller shaft matches with first jewel bearing.
In order to reduce the resistance of water, described guide shell front bulkhead is thin, the rear end wall thickness; Described kuppe is bullet shape.
Described guide shell is that screw is connected with annexation between the forward and backward support, and described fore-stock is plugged on the kuppe.
Further, also comprise the flow-rate impulse switching device, described flow velocity, pulses switch device are magnet steel and Hall element, and described magnet steel is embedded on the centralized positioning dish, and described Hall element is fixed on the after-poppet.
Described magnet steel quantity is 8, and it is evenly distributed on the centralized positioning dish.
Described fixing device comprises second jewel bearing, center, adjusting screw, setting nut, and second jewel bearing, adjusting screw and setting nut are rigidly attached on the after-poppet by center.
Again further, also comprise measuring staff, the measuring staff that can regulate length of described measuring staff for constituting by 3-5 section conical rod.
Advantage compared with prior art of the present utility model and good effect are as follows: 1, the special guide shell and the structural design of kuppe, can effectively avoid the influence of turbulent flow, improve the stability and the measurement accuracy of the startup flow velocity of instrument, make instrument have stronger adaptive capacity to environment; 2, use Hall element and magnet steel as flow velocity, pulses switch device, this electromagnetic isolation technology has solved the watertight problem of sensor effectively; 3, the some way of contact of impeller shaft and kuppe and jewel bearing has reduced friction force greatly, has further improved the stability and the measurement accuracy of the startup flow velocity of instrument; 4, the design of adjusting screw and setting nut, the tightness of scalable impeller shaft and other parts plays the effect of the sensitivity of regulating sensor, is convenient to the calibration of a whole set of instrument; 5, measuring staff is designed to the more piece extension type, and is simple to operate, easy to use and carry.
Description of drawings
Fig. 1 is the portable oar flow sensor structural representation that revolves of the utility model;
Fig. 2 for shown in Figure 1 portable revolve the oar flow sensor along A-A to cut-open view.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
Referring to Fig. 1, Fig. 2, the utility model revolves the oar flow sensor and comprises impeller 4, impeller shaft 7 and centralized positioning dish 6, impeller 4, impeller shaft 7 and centralized positioning dish 6 is installed together rigidly, and is placed in the inner chamber of guide shell 1.
Evenly be inlaid with magnet steel 5 on the centralized positioning dish 6, the Hall element 8 on being fixed on after-poppet 10 is formed flow velocity, pulses switch device, and the quantity of present embodiment magnet steel 5 is 8, adopts the electromagnetic isolation technology to solve the watertight problem of sensor effectively.
In order to reduce the resistance of water, with guide shell 1 front bulkhead skiving, promptly front bulkhead is acute angle shape, and kuppe 2 is made streamlined simultaneously, and the described kuppe of present embodiment is bullet shape.
One measuring staff 15 also is housed on the lateral wall of guide shell 1, and described measuring staff 15 is for the measuring staff that can regulate length that is made of 3-5 section conical rod of making easy to carry, and present embodiment is made 4 sections.
Above-mentioned water delivering orifice place of revolving oar flow sensor insertion pipeline is measured.Because the guide functions that kuppe 2 and guide shell 1 produce, even the portable oar flow sensor that revolves is put in the tested water body, can well rambling current be changed into current stably, like this, guarantee that impeller 4 is steadily rotating under the fluid impact always, effectively avoid the influence of turbulent flow, improved the antijamming capability of instrument itself, also reduced the startup flow velocity simultaneously, in the time of the impeller rotation, be assemblied in the and then rotation of magnet steel on the impeller shaft, and produce pulse signal by Hall element.Simultaneously, handheld main machine is gathered signal by data line, and carries out data processing through modulate circuit, finally shows and stores real-time flow rate and mean flow rate.
For ensureing the functional reliability of sensor, kuppe 2 adopts the engineering plastics of acid-alkali-corrosive-resisting, and other all adopt the metal material processing of acid-alkali-corrosive-resisting to make.
Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (9)
1. the novel portable oar flow sensor that revolves comprises impeller, and measuring staff is characterized in that: also comprise the guide shell of hollow, described measuring staff is connected with guide shell, and described impeller is contained in the guide shell inner chamber.
2. the oar flow sensor that revolves according to claim 1, it is characterized in that: also comprise impeller shaft, after-poppet, described impeller is contained on the impeller shaft, and the rear end of impeller shaft is contained on the after-poppet by fixing device, and described after-poppet is installed in the rear end of guide shell inner chamber.
3. the oar flow sensor that revolves according to claim 2, it is characterized in that: the described oar flow sensor that revolves also comprises kuppe, fore-stock, described fore-stock is installed in the front end of guide shell inner chamber, described kuppe is installed on the fore-stock, the kuppe center is equipped with first jewel bearing, and the front end of described impeller shaft matches with first jewel bearing.
4. the oar flow sensor that revolves according to claim 3 is characterized in that: described guide shell front bulkhead is thin, the rear end wall thickness; Described kuppe is bullet shape.
5. the oar flow sensor that revolves according to claim 4 is characterized in that: described guide shell is that screw is connected with annexation between the forward and backward support, and described fore-stock is plugged on the kuppe.
6. the oar flow sensor that revolves according to claim 5, it is characterized in that: also comprise flow velocity, pulses switch device, described flow velocity, pulses switch device are magnet steel and Hall element, and described magnet steel is embedded on the centralized positioning dish, and described Hall element is fixed on the after-poppet.
7. the oar flow sensor that revolves according to claim 6 is characterized in that: described magnet steel quantity is 8, and it is evenly distributed on the centralized positioning dish.
8. according to the described oar flow sensor that revolves of the arbitrary claim of claim 2 to 7, it is characterized in that: described fixing device comprises second jewel bearing, center, adjusting screw, setting nut, and second jewel bearing, adjusting screw and setting nut are rigidly attached on the after-poppet by center.
9. the oar flow sensor that revolves according to claim 1 is characterized in that: also comprise measuring staff, described measuring staff is the measuring staff that can regulate length that 3-5 section conical rod constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200239272U CN201060209Y (en) | 2007-06-15 | 2007-06-15 | Novel portable propeller current velocity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200239272U CN201060209Y (en) | 2007-06-15 | 2007-06-15 | Novel portable propeller current velocity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060209Y true CN201060209Y (en) | 2008-05-14 |
Family
ID=39408691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200239272U Expired - Fee Related CN201060209Y (en) | 2007-06-15 | 2007-06-15 | Novel portable propeller current velocity sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060209Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547369A (en) * | 2016-01-14 | 2016-05-04 | 中国地质大学（武汉） | Single-hole device for measuring underground water flow velocity and flow direction |
| CN108871465A (en) * | 2018-07-06 | 2018-11-23 | 北京建筑大学 | Pipeline buoyancy flowmeter |
| CN109655633A (en) * | 2018-12-03 | 2019-04-19 | 南京理工大学 | River flow velocity contains husky measuring device |
| WO2021125946A1 (en) * | 2019-12-19 | 2021-06-24 | Acin Instrumenten B.V. | Measuring device for measuring an air flow |
| CN114354971A (en) * | 2022-01-14 | 2022-04-15 | 华北理工大学 | Molten steel flow velocity measuring equipment for continuous casting crystallizer |
-
2007
- 2007-06-15 CN CNU2007200239272U patent/CN201060209Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547369A (en) * | 2016-01-14 | 2016-05-04 | 中国地质大学（武汉） | Single-hole device for measuring underground water flow velocity and flow direction |
| CN105547369B (en) * | 2016-01-14 | 2017-10-10 | 中国地质大学（武汉） | A kind of groundwater velocity and direction single hole measurement apparatus |
| CN108871465A (en) * | 2018-07-06 | 2018-11-23 | 北京建筑大学 | Pipeline buoyancy flowmeter |
| CN109655633A (en) * | 2018-12-03 | 2019-04-19 | 南京理工大学 | River flow velocity contains husky measuring device |
| WO2021125946A1 (en) * | 2019-12-19 | 2021-06-24 | Acin Instrumenten B.V. | Measuring device for measuring an air flow |
| CN114354971A (en) * | 2022-01-14 | 2022-04-15 | 华北理工大学 | Molten steel flow velocity measuring equipment for continuous casting crystallizer |
| CN114354971B (en) * | 2022-01-14 | 2023-07-21 | 华北理工大学 | Continuous casting crystallizer molten steel flow velocity measurement equipment |
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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: 20080514 Termination date: 20120615 |