CN204988374U - Dual turbine flowmeter - Google Patents
Dual turbine flowmeter Download PDFInfo
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- CN204988374U CN204988374U CN201520705125.4U CN201520705125U CN204988374U CN 204988374 U CN204988374 U CN 204988374U CN 201520705125 U CN201520705125 U CN 201520705125U CN 204988374 U CN204988374 U CN 204988374U
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- turbine
- detecting element
- speed detecting
- secondary speed
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Abstract
The utility model provides a dual turbine flowmeter, it includes the casing, the inside runner that is equipped with of casing, set up the horizontal rotating shaft in the runner, the horizontal rotating shaft both ends set up first turbine and second turbine respectively, set up first turbine speed detection component at the rear side of first turbine, set up second turbine speed detection component at the rear side of second turbine, the utility model discloses can be in accurate measured flow body flow, conveniently judge had the disturbance flow, whether the blade receives the damage or installs whether receive damage, simple structure at the central bearing of turbine.
Description
Technical field
The utility model relates to the flow measurement technology field of a kind of analysis and survey control technology, comprises the flowmeter of gas flow and liquid flow measurement.
Background technology
At present, known turbo flow meter forms measurement component by a turbine and carries out flow measurement.Turbine is arranged in flowmeter shell, and when fluid flows through flowmeter shell, promote turbine and rotate, secondary speed becomes certain mathematical relation with flow, thus reaches measuring flow meter object by measuring secondary speed.But, when turbine rotates by flow field disturbing influence, being damaged by blade affects and affects by the bearing damage be arranged in turbine, and flow metering deviation will be caused serious.The flowmeter of a turbine can not judge whether accurate measurement, causes difficulty to flow accurate-metering, easily causes metering overproof.
Utility model content
The utility model in order to overcome existing turbo flow meter can not judge secondary speed whether with flow into about fixed mathematical relation, the utility model provides a kind of two turbo flow meter, this pair of turbo flow meter can not only the flow that flows through of Measurement accuracy, and can judge whether the bearing that turbine is installed damages easily, thus adopt the mathematical model calibrated flow of agreement, reach the object of Measurement accuracy flow.
The utility model provides: a kind of two turbo flow meter, it comprises housing, described enclosure interior is provided with runner, in described runner, horizontal rotating shaft is set, described horizontal rotating shaft two ends arrange the first turbine and the second turbine respectively, first secondary speed detecting element is set at the rear side of the first turbine, the second secondary speed detecting element is set at the rear side of the second turbine.
Between first turbine and horizontal rotating shaft, clutch shaft bearing is set, the second bearing is set between the second turbine and horizontal rotating shaft.
Described housing arranges display unit, and described display unit is connected with the first secondary speed detecting element and the second secondary speed detecting element respectively.
Described horizontal rotating shaft is a main shaft, and described main shaft two ends are fixed on enclosure interior respectively by axle sleeve, and the first turbine and the second turbine are successively set on main shaft, and arranges the interval of enough first secondary speed detecting element installations between the two.
Described first secondary speed detecting element and the second secondary speed detecting element are non-contacting sensor.
Described horizontal rotating shaft comprises the first axle and the second axle, and described first axle arranges the first turbine, and described second axle arranges the second turbine.
Described first secondary speed detecting element and the second secondary speed detecting element are worm structure formula sensor, and it is linked with the first axle and the second axle respectively.
The utility model can while Measurement accuracy fluid flow, judge easily be by there is disturbance flow, whether blade is damaged or whether the bearing that is arranged on turbine center is damaged, structure is simple.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is longitudinal profile of the present utility model structural map.
Fig. 2 is the longitudinal profile structural map of two turbo flow meter embodiment 1.
Fig. 3 is the vertical part surface structural map of two turbo flow meter embodiment 2.
1, first turbine in figure, 2, clutch shaft bearing, the 3, second turbine, the 4, second bearing, 5, main shaft, the 6, first secondary speed detecting element, the 7, second secondary speed detecting element, 8, display unit, the 9, first axle, the 10, second axle.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in Figure 1, a kind of two turbo flow meter, it comprises housing, described enclosure interior is provided with runner, in described runner, horizontal rotating shaft is set, described horizontal rotating shaft two ends arrange the first turbine 1 and the second turbine 3 respectively, arrange the first secondary speed detecting element 6, arrange the second secondary speed detecting element 7 at the rear side of the second turbine 3 at the rear side of the first turbine 1.
Between first turbine 1 and horizontal rotating shaft, clutch shaft bearing 2 is set, the second bearing 4 is set between second turbine 3 and horizontal rotating shaft.Both are fixed on horizontal rotating shaft by clutch shaft bearing 2 and the second bearing 4.
Described housing is arranged display unit 8, described display unit 8 is connected with the first secondary speed detecting element 6 and the second secondary speed detecting element 7 respectively, namely the first secondary speed detecting element 6 is connected with display unit 8 with the output terminal of the second secondary speed detecting element 7, described display unit 8 can be display screen, also can be digital instrument.
Embodiment 1 as shown in Figure 2, adopt a main shaft 5 as horizontal rotating shaft, described main shaft 5 two ends are fixed on the water conservancy diversion frame of enclosure interior respectively by axle sleeve, first turbine and the second turbine are successively set on main shaft 5, and the interval of enough first secondary speed detecting element installations is set between the two, described first secondary speed detecting element and the second secondary speed detecting element are non-contacting sensor.Detected the rotating speed of turbine by non-contacting sensor in real time, and shown by display unit.
Embodiment 2 as shown in Figure 3, described horizontal rotating shaft comprises the first axle 9 and the second axle 10, and described first axle 9 arranges the first turbine 1, and described second axle 10 arranges the second turbine 3.By independent the first axle 9 and the second axle 10 arranged, and being on same level line of two axles.First axle and the second axle are fixed on water conservancy diversion frame respectively by axle sleeve, and the center of two axles is in same level, then the first turbine and the second turbine are installed on the first axle and the second axle respectively, described first secondary speed detecting element and the second secondary speed detecting element are worm structure formula sensor, it is linked with the first axle 9 and the second axle 10 respectively, is carried out the identification of turbine trip speed by the velocity of rotation of detection axis.
Originally single turbine meter its by flow q=f/K*3600m
3/ h, adds up the flow flowing through turbine, and wherein f is frequency, and K is turbo flow meter meter constant.
The application is then the flow being calculated the first turbine by q1=f1/K1*3600, the flow of the second turbine is calculated by q2=f2/K2*3600, and calculate its deviation by A=(q1-q2)/q2, if | A|<2%, then q=q1*B (B is the first turbine correction coefficient), if contrary, q=q2*C (C is the second turbine correction coefficient), and report an error, because two turbine flow deviations are serious, carry out to the metering of flow and judgement be by there is disturbance flow, whether blade is damaged or whether the bearing that is arranged on turbine center is damaged.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection domain of the present utility model.
Claims (7)
1. a two turbo flow meter, it comprises housing, described enclosure interior is provided with runner, in described runner, horizontal rotating shaft is set, it is characterized in that: described horizontal rotating shaft two ends arrange the first turbine and the second turbine respectively, first secondary speed detecting element is set at the rear side of the first turbine, the second secondary speed detecting element is set at the rear side of the second turbine.
2. according to claim 1 pair of turbo flow meter, is characterized in that, arranges clutch shaft bearing between the first turbine and horizontal rotating shaft, arranges the second bearing between the second turbine and horizontal rotating shaft.
3. according to claim 1 pair of turbo flow meter, is characterized in that, described housing arranges display unit, and described display unit is connected with the first secondary speed detecting element and the second secondary speed detecting element respectively.
4. the two turbo flow meters according to claim 1 or 2 or 3, it is characterized in that, described horizontal rotating shaft is a main shaft, described main shaft two ends are fixed on enclosure interior respectively by axle sleeve, first turbine and the second turbine are successively set on main shaft, and arrange the interval of enough first secondary speed detecting element installations between the two.
5. according to claim 4 pair of turbo flow meter, is characterized in that, described first secondary speed detecting element and the second secondary speed detecting element are non-contacting sensor.
6. the two turbo flow meters according to claim 1 or 2 or 3, is characterized in that, described horizontal rotating shaft comprises the first axle and the second axle, described first axle arrange the first turbine, described second axle arranges the second turbine.
7. according to claim 6 pair of turbo flow meter, is characterized in that, described first secondary speed detecting element and the second secondary speed detecting element are worm structure formula sensor, and it is linked with the first axle and the second axle respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705125.4U CN204988374U (en) | 2015-09-14 | 2015-09-14 | Dual turbine flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705125.4U CN204988374U (en) | 2015-09-14 | 2015-09-14 | Dual turbine flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204988374U true CN204988374U (en) | 2016-01-20 |
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ID=55122733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520705125.4U Active CN204988374U (en) | 2015-09-14 | 2015-09-14 | Dual turbine flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204988374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593016A (en) * | 2018-03-20 | 2018-09-28 | 中国石油天然气股份有限公司 | Downhole flow logging device and method |
| CN113155206A (en) * | 2021-04-28 | 2021-07-23 | 陈满堂 | Double-turbine rotor flow meter resisting vibration and impact |
-
2015
- 2015-09-14 CN CN201520705125.4U patent/CN204988374U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593016A (en) * | 2018-03-20 | 2018-09-28 | 中国石油天然气股份有限公司 | Downhole flow logging device and method |
| CN108593016B (en) * | 2018-03-20 | 2020-11-06 | 中国石油天然气股份有限公司 | Downhole flow logging device and method |
| CN113155206A (en) * | 2021-04-28 | 2021-07-23 | 陈满堂 | Double-turbine rotor flow meter resisting vibration and impact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tao Chaojian Inventor after: Yang Guofen Inventor after: Guo Yangyan Inventor after: Zeng Hanqian Inventor after: Ye Shengwen Inventor before: Tao Chaojian Inventor before: Yang Guofen Inventor before: Guo Yanyang Inventor before: Zeng Hanqian Inventor before: Ye Shengwen |
|
| COR | Change of bibliographic data |