CN101776469A - Three-tooth helical flow meter - Google Patents
Three-tooth helical flow meter Download PDFInfo
- Publication number
- CN101776469A CN101776469A CN200910045131A CN200910045131A CN101776469A CN 101776469 A CN101776469 A CN 101776469A CN 200910045131 A CN200910045131 A CN 200910045131A CN 200910045131 A CN200910045131 A CN 200910045131A CN 101776469 A CN101776469 A CN 101776469A
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- Prior art keywords
- tooth helical
- tooth
- flow meter
- housing
- helical flow
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- 230000008676 import Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The invention relates to a three-tooth helical flow meter, which is characterized in that: a three-tooth helical rotor has a three-tooth helical shape; the tooth width is one third of the lead; a transmitting disk component is fixedly arranged on the excircle of one side of the three-tooth helical rotor; two shaft sleeves are fixedly arranged at both ends of the three-tooth helical rotor; a shaft is arranged in each shaft sleeve; one end of the shaft is fixed in a hole of a left bracket which is fixedly connected with a shell; and the other end of the shaft is fixed in a hole of a right bracket fixedly which is arranged on the shell. Compared with the prior art, the three-tooth helical flow meter has the advantages that: the change of a rotor helical angle reduces the adhesion of a measured medium and the sensitivity to the changed of medium viscosity, so the measurement accuracy meet the requirements of trade metering; and the ratio of the measurement range width to the measurement range is 15:1 and the pressure loss is low. The three-tooth helical flow meter has simple structure, firm and reliable components, high or low temperature resistance, high pressure resistance and high impurity resistance.
Description
[technical field]
The present invention is the surveying instrument of the solution that is applicable to industries such as crude oil, petroleum product, food, chemical industry, liquid, gas flow.
[background technology]
A kind of turbo flow meter is arranged in the prior art, and its structure is to adopt impeller-type rotor.The number of blade of the impeller of rotor of this structure is many, complex structure, and the viscosity to liquid during use changes sensitivity, precision is not high, and sender pulse out of true is made troubles to use.
[summary of the invention]
Technical matters to be solved by this invention is, overcome the defective that exists in the above-mentioned prior art, a kind of three-tooth helical flow meter is provided, smart electronics counting device 1 is connected the outer Side of housing 10, sensor 2 is communicated with housing 10 inner chambers, and is connected with smart electronics counting device 1 by circuit, and it is characterized in that: three tooth helical rotors 7 adopt three tooth screw types, helix angle adopts between 50～60 degree, and the facewidth is 1/3rd of a helical pitch; Fixedly connected sender set assembly 3 on the cylindrical of three tooth helical rotors, one side, and the lower surface of the cylindrical of sender set assembly 3 and sensor 2 is gapped; Three tooth helical rotors 7 are rotatably connected with axle 9.
The present invention compares with prior art, has tangible advantage and good effect.The present invention is owing to adopt three tooth helical rotors, the width of helical rotor is 1/3rd helical pitches, the flute profile of helical rotor both ends of the surface is overlapped on 1/3rd helical pitch, thereby measuring accuracy is improved, the spiral angle that rotor three teeth adopt reduces the adhesion of measured medium, the dielectric viscosity change sensitivity is reduced, thereby make measuring accuracy reach the Trade Measures permissible accuracy, the influence of the fluctuation that is not stressed; And measurement range is wide, and range ratio can reach 15: 1, and the pressure loss is low, the present invention is simple in structure, and member is firm reliable, and bearing life is long, has excellent mechanical intensity, can anti-height (low) temperature, high pressure, anti-impurity is strong, can bear temporary transient super-flow and impact, safeguard simple, expense is low.
[description of drawings]
Fig. 1, three-tooth helical flow meter structural representation
The right view of Fig. 2, Fig. 1
Fig. 3, three tooth helical rotor stereographic maps
Fig. 4, three tooth helical rotor front views
Fig. 5, three tooth helical rotor vertical views
Each sequence number is expressed as respectively among the figure:
1-smart electronics counting device 2-sensor 3-sender set assembly
4-bung flange 5-flange disc 6-right support abutment
7-three tooth helical rotor 8-axle sleeve 9-axles
10-housing 11-bung flange 12-left support abutment
[embodiment]
The invention will be further described below in conjunction with embodiment and accompanying drawing, with reference to Fig. 1～Fig. 5, be the embodiment of a kind of three-tooth helical flow meter of the present invention, smart electronics counting device 1 is connected the outer Side of housing 10, sensor 2 is communicated with housing 10 inner chambers, and is connected with smart electronics counting device 1 by circuit, and three tooth helical rotors 7 adopt three tooth screw types, helix angle adopts between 50～60 degree, and the facewidth is 1/3rd of a helical pitch; Fixedly connected sender set assembly 3 on the cylindrical of three tooth helical rotors, one side, and the lower surface of the cylindrical of sender set assembly 3 and sensor 2 is gapped; Three tooth helical rotors 7 are rotatably connected with axle 9.Sender set assembly 3 is signal sources, when three tooth helical rotors rotate, and the continuous induction pick-up 2 of the signal of sender set assembly 3, sensor 2 passes to smart electronics counting device 1 by circuit with signal.
One end of axle 9 is fixedly connected in the hole of left support abutment 12, left support abutment 12 is fixedlyed connected with the inner chamber of housing 10, and by bung flange 11 lockings, the other end of axle 9 is fixedly connected in the hole of right support abutment 6, the cylindrical of right support abutment 6 is fixedly connected on the inner chamber of housing 10, by bung flange 4 lockings.
8, two axle sleeves of fixedly connected two axle sleeves in the two ends of three tooth helical rotors 78 and axle 9 are rotatably connected, and this structure can guarantee that three tooth helical rotors 7 are in axle 9 cofree rotations.
The import and export of two ring flanges 5 and housing 10 are connected, so that be connected with pipeline.
Claims (5)
1. three-tooth helical flow meter, smart electronics counting device 1 is connected the outside of housing 10, sensor 2 is communicated with housing 10 inner chambers, and be connected by circuit and smart electronics counting device 1, it is characterized in that: three tooth helical rotors 7 adopt three tooth screw types, helix angle adopts between 50～60 degree, and the facewidth is 1/3rd of a helical pitch; Fixedly connected sender set assembly 3 on the cylindrical of three tooth helical rotors, one side, and the lower surface of the cylindrical of sender set assembly 3 and sensor 2 is gapped; Three tooth helical rotors 7 are rotatably connected with axle 9.
2. three-tooth helical flow meter according to claim 1, it is characterized in that: an end of axle 9 is fixedly connected in the hole of left support abutment 12, left support abutment 12 is fixedlyed connected with the inner chamber of housing 10, by bung flange 11 lockings, the other end of axle 9 is fixedly connected in the hole of right support abutment 6, the cylindrical of right support abutment 6 is fixedly connected on the inner chamber of housing 10, by bung flange 4 lockings.
3. three-tooth helical flow meter according to claim 1 and 2 is characterized in that: 8, two axle sleeves of fixedly connected two axle sleeves in the two ends of three tooth helical rotors 78 and axle 9 are rotatably connected.
4. three-tooth helical flow meter according to claim 1 and 2 is characterized in that: the import and export of two ring flanges 5 and housing 10 are connected.
5. three-tooth helical flow meter according to claim 3 is characterized in that: the import and export of two ring flanges 5 and housing 10 are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910045131 CN101776469B (en) | 2009-01-09 | 2009-01-09 | Three-tooth helical flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910045131 CN101776469B (en) | 2009-01-09 | 2009-01-09 | Three-tooth helical flow meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101776469A true CN101776469A (en) | 2010-07-14 |
| CN101776469B CN101776469B (en) | 2013-01-30 |
Family
ID=42512989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910045131 Active CN101776469B (en) | 2009-01-09 | 2009-01-09 | Three-tooth helical flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101776469B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778261A (en) * | 2011-05-09 | 2012-11-14 | 广州市番禺奥迪威电子有限公司 | Ultrasonic flow sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000058605A1 (en) * | 1999-03-31 | 2000-10-05 | Emerson Electric Co. | Helical rotor structures for fluid displacement apparatus |
| CN101042301A (en) * | 2006-03-23 | 2007-09-26 | 上海一诺仪表有限公司 | 3-teeth double-rotor flowmeter |
| CN101308035A (en) * | 2007-05-18 | 2008-11-19 | 上海一诺仪表有限公司 | Positive displacement 3 teeth rotor flow meter |
| CN201368746Y (en) * | 2008-11-10 | 2009-12-23 | 上海一诺仪表有限公司 | Three-tooth screw flow meter |
-
2009
- 2009-01-09 CN CN 200910045131 patent/CN101776469B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000058605A1 (en) * | 1999-03-31 | 2000-10-05 | Emerson Electric Co. | Helical rotor structures for fluid displacement apparatus |
| CN101042301A (en) * | 2006-03-23 | 2007-09-26 | 上海一诺仪表有限公司 | 3-teeth double-rotor flowmeter |
| CN101308035A (en) * | 2007-05-18 | 2008-11-19 | 上海一诺仪表有限公司 | Positive displacement 3 teeth rotor flow meter |
| CN201368746Y (en) * | 2008-11-10 | 2009-12-23 | 上海一诺仪表有限公司 | Three-tooth screw flow meter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778261A (en) * | 2011-05-09 | 2012-11-14 | 广州市番禺奥迪威电子有限公司 | Ultrasonic flow sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101776469B (en) | 2013-01-30 |
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