CN202420566U - Microminiature flowmeter - Google Patents
Microminiature flowmeter Download PDFInfo
- Publication number
- CN202420566U CN202420566U CN2012200247072U CN201220024707U CN202420566U CN 202420566 U CN202420566 U CN 202420566U CN 2012200247072 U CN2012200247072 U CN 2012200247072U CN 201220024707 U CN201220024707 U CN 201220024707U CN 202420566 U CN202420566 U CN 202420566U
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- CN
- China
- Prior art keywords
- impeller
- flowmeter
- sensor
- microminiature
- extra small
- 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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Abstract
The utility model provides a microminiature flowmeter comprising a shell body, an electronic meter head which is arranged on the shell body, and an impeller and a spray nozzle which are arranged in the shell body; a sensor is arranged between the electronic meter head and the impeller; an impeller sleeve is arranged outside the impeller; and the outer diameter of the spray nozzle and the inner diameter of the shell body are in interference fit. The number of the blades of the impeller is odd. Connection is realized through a thread or through a flange. The blades of the impeller are made of 2Crl3 materials. The impeller sleeve is 304 stainless steel which is in an arc shape and of which the radian is more than 180 degrees. When the work is stopped, one blade is always vertical downwards. The spray nozzle is provided with a conical head. The sensor is a magnetoelectric sensor. The microminiature flowmeter has the beneficial effects that the measurement of the microminiature flow is more convenient and accurate; and the flowmeter has the advantages of simple structure, low processing cost, cheap price, applicability to mass production and the like.
Description
Technical field
The utility model relates to a kind of flow metering equipment of liquid medium, especially relates to a kind of extra small rate-of flow meter.
Background technology
In existing production, the flow of used liquid need be known by most enterprises.The method of measurement fluid flow has a variety of, has ultrasonic measurement, differential measurement, turbine type to measure or the like, and wherein the precision of turbine type measurement is the highest.Turbo flow meter commonly used both at home and abroad is to come meter fluid through the rotating speed that detects turbine.Its structure is generally: turbine, turboshaft and axle support member are all installed along housing interior conduit direction, promote the turbine rotation, realize measuring purpose with this.The turbo flow meter of this structure is because exist bigger slit, when the downstream fluid can not be full of tube chamber between two blades of turbine; Particularly under the situation of low discharge, a part of fluid passes through between two blades, and its acting force is more little; Flow loss is big more, and error in dipping is big more.Thereby cause the turbo flow meter flow range little, defectives such as low discharge metering poor stability.
Summary of the invention
The problem that the utility model will solve provides a kind of extra small flowmeter, especially is fit to the extra small flow metering of liquid medium in the industries such as oil field, petrochemical industry, scientific research, metallurgy, military project, medicine, food or the metering of low discharge.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of extra small flowmeter comprises housing, the electronics gauge outfit that is mounted thereon and the impeller, the nozzle that are installed in it; Be provided with sensor between said electronics gauge outfit and the impeller; Said impeller outside is provided with impeller set; Said nozzle od and housing internal diameter interference fit.
Further, the number of blade of said impeller is an odd number.
Further, adopt the perhaps flange connection that is threaded.
Further, the blade of said impeller is a 2Cr13 material blade.
Further, said impeller set is arc and radian 304 stainless steels greater than 180 degree.When work stops, a blade is always arranged downward vertically.
Further, said nozzle has a conical head.
Further, said sensor is a magnetoelectric transducer.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme, the metering of extra small flow is convenient, accurate; Have advantages such as simple in structure, low, the low price of processing cost, suitable production in enormous quantities.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the utility model impeller set;
Fig. 3 is the view of the utility model impeller set along the A direction.
Among the figure:
1, electronics gauge outfit 2, sensor 3, housing
4, impeller 5, impeller set 6, nozzle
Embodiment
Like Fig. 1, shown in 2 and 3, the utility model provides a kind of extra small flowmeter, comprises housing 3, the electronics gauge outfit 1 that is mounted thereon and the impeller 4, the nozzle 6 that are installed in it; Be provided with sensor 2 between said electronics gauge outfit 1 and the impeller 4; Said impeller 4 outsides are provided with impeller set 5; Said nozzle 6 external diameters and housing 3 internal diameter interference fit.The number of blade of said impeller 4 is an odd number.Employing is threaded or flange connects.The blade of said impeller 4 is 2Cr13 material blades.Said impeller set 5 is arc and radian 304 stainless steels greater than 180 degree.Said nozzle 6 has a conical head.Said sensor 2 is magnetoelectric transducers.
The course of work of this instance: behind the current stabilization straight length of liquid, change latus rectum through the utility model, diameter from large to small, flow quickens.Promote impeller 4 in tangential direction, produce a direction rotation.Sending pulse signal through magnetoelectric transducer gives the electronics gauge outfit 1 work.
More than the embodiment of the utility model is specified, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.
Claims (7)
1. extra small flowmeter is characterized in that: comprise housing (3), the electronics gauge outfit (1) that is mounted thereon and be installed on impeller (4), the nozzle (6) in it; Be provided with sensor (2) between said electronics gauge outfit (1) and the impeller (4); Said impeller (4) outside is provided with impeller set (5); Said nozzle (6) external diameter and housing (3) internal diameter interference fit.
2. extra small flowmeter according to claim 1 is characterized in that: the number of blade of said impeller (4) is an odd number.
3. extra small flowmeter according to claim 1 is characterized in that: adopt to be threaded or the flange connection.
4. extra small flowmeter according to claim 1 is characterized in that: the blade of said impeller (4) is a 2Cr13 material blade.
5. extra small flowmeter according to claim 1 is characterized in that: said impeller set (5) is arc and radian 304 stainless steels greater than 180 degree.
6. extra small flowmeter according to claim 1 is characterized in that: said nozzle (6) has a conical head.
7. extra small flowmeter according to claim 1 is characterized in that: said sensor (2) is a magnetoelectric transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200247072U CN202420566U (en) | 2012-01-19 | 2012-01-19 | Microminiature flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200247072U CN202420566U (en) | 2012-01-19 | 2012-01-19 | Microminiature flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420566U true CN202420566U (en) | 2012-09-05 |
Family
ID=46745323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200247072U Expired - Fee Related CN202420566U (en) | 2012-01-19 | 2012-01-19 | Microminiature flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157761A (en) * | 2015-07-07 | 2015-12-16 | 成都国光电子仪表有限责任公司 | Easy mounting natural gas flow calculator |
-
2012
- 2012-01-19 CN CN2012200247072U patent/CN202420566U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157761A (en) * | 2015-07-07 | 2015-12-16 | 成都国光电子仪表有限责任公司 | Easy mounting natural gas flow calculator |
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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: 20120905 Termination date: 20150119 |
|
| EXPY | Termination of patent right or utility model |