CN210922718U - Multistage turbine of turbine flowmeter - Google Patents
Multistage turbine of turbine flowmeter Download PDFInfo
- Publication number
- CN210922718U CN210922718U CN202020023083.7U CN202020023083U CN210922718U CN 210922718 U CN210922718 U CN 210922718U CN 202020023083 U CN202020023083 U CN 202020023083U CN 210922718 U CN210922718 U CN 210922718U
- Authority
- CN
- China
- Prior art keywords
- turbine
- fixed shaft
- along
- sleeve
- vane
- 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.)
- Active
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a multistage turbine of turbine flowmeter, include: a fixed shaft; the guide cone is arranged at the end part of the fixed shaft; the first turbine is sleeved on the fixed shaft and is positioned on the left side of the guide cone; the projected area of the second turbine along the fixed shaft is larger than that of the first turbine along the fixed shaft; the projection area of the third turbine along the fixed shaft is larger than that of the second turbine along the fixed shaft; the projection area of the fourth turbine along the fixed shaft is larger than that of the third turbine along the fixed shaft; the projection area of the fifth turbine along the fixed shaft is larger than that of the fourth turbine along the fixed shaft; and the projection area of the sixth turbine along the fixed shaft is larger than that of the fifth turbine along the fixed shaft. The multistage turbine structure of the turbine flowmeter can reduce the impact of the introduced fluid on the blades, thereby improving the measurement accuracy and stability of the turbine flowmeter.
Description
Technical Field
The utility model relates to a technical field of flowmeter, in particular to turbine flowmeter's multistage turbine.
Background
A turbine flow meter is a flow meter that uses a turbine for measurement. The flowmeter converts the flow velocity of fluid into the rotation velocity of a turbine, then converts the rotation velocity into an electric signal in direct proportion to the flow, can be used for detecting the instantaneous flow and the total integrated flow, and the output signal is frequency and easy to digitize. The existing turbine flowmeter is greatly influenced by fluid and has poor metering stability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multistage turbine of turbine flowmeter solves one or more among the above-mentioned prior art problem.
The utility model provides a multistage turbine of turbine flowmeter, include:
a fixed shaft;
the flow guide cone is arranged at the end part of the fixed shaft, and the taper direction of the flow guide cone is opposite to the flowing direction of the fluid;
the first turbine is sleeved on the fixed shaft and is positioned on the left side of the guide cone;
the second turbine is sleeved on the fixed shaft and positioned on the left side of the first turbine, and the projection area of the second turbine along the fixed shaft is larger than that of the first turbine along the fixed shaft;
the third turbine is sleeved on the fixed shaft and positioned on the left side of the second turbine, and the projection area of the third turbine along the fixed shaft is larger than that of the second turbine along the fixed shaft;
the fourth turbine is sleeved on the fixed shaft and positioned on the left side of the third turbine, and the projection area of the fourth turbine along the fixed shaft is larger than that of the third turbine along the fixed shaft;
the fifth turbine is sleeved on the fixed shaft and positioned on the left side of the fourth turbine, and the projection area of the fifth turbine along the fixed shaft is larger than that of the fourth turbine along the fixed shaft;
the sixth turbine is sleeved on the fixed shaft and located on the left side of the fifth turbine, and the projection area of the sixth turbine along the fixed shaft is larger than that of the fifth turbine along the fixed shaft.
In some embodiments, the first turbine includes a first fixed shaft sleeve and a plurality of first blades circumferentially disposed on the first fixed shaft sleeve, the second turbine includes a second fixed shaft sleeve and a plurality of second blades circumferentially disposed on the second fixed shaft sleeve, the third turbine includes a third fixed shaft sleeve and a plurality of third blades circumferentially disposed on the third fixed shaft sleeve, the fourth turbine includes a fourth fixed shaft sleeve and a plurality of fourth blades circumferentially disposed on the fourth fixed shaft sleeve, the fifth turbine includes a fifth fixed shaft sleeve and a plurality of fifth blades circumferentially disposed on the fifth fixed shaft sleeve, and the sixth turbine includes a sixth fixed shaft sleeve and a plurality of sixth blades circumferentially disposed on the sixth fixed shaft sleeve.
In some embodiments, the first vane has a length less than the second vane, the second vane has a length less than the third vane, the third vane has a length less than the fourth vane, the fourth vane has a length less than the fifth vane, and the fifth vane has a length less than the sixth vane.
In some embodiments, the first blade is 15 to 45 ° to the fluid flow direction, the second blade is 15 to 45 ° to the fluid flow direction, the third blade is 15 to 45 ° to the fluid flow direction, the fourth blade is 15 to 45 ° to the fluid flow direction, the fifth blade is 15 to 45 ° to the fluid flow direction, and the sixth blade is 15 to 45 ° to the fluid flow direction.
In some embodiments, the first fixing shaft sleeve is connected with the fixing shaft through a key or a pin, the second fixing shaft sleeve is connected with the fixing shaft through a key or a pin, the third fixing shaft sleeve is connected with the fixing shaft through a key or a pin, the fourth fixing shaft sleeve is connected with the fixing shaft through a key or a pin, the fifth fixing shaft sleeve is connected with the fixing shaft through a key or a pin, and the sixth fixing shaft sleeve is connected with the fixing shaft through a key or a pin.
Has the advantages that: the utility model discloses a multistage turbine structure of turbine flowmeter can reduce the impact of introducing the fluid to the blade to, improve turbine flowmeter's measurement accuracy and stability. And the generated rotating torque is smaller, the rotating speed of the impeller is lower at the same flow speed, the generated flow speed distortion and the rotating flow caused by the turbine are also smaller, so that the length of the upstream and downstream straight pipe sections required during installation is smaller, the centrifugal force of unbalanced rotation is small, the frictional resistance is low, and the service life of the flowmeter bearing is prolonged.
Drawings
Fig. 1 is a schematic structural view of a multistage turbine of a turbine flowmeter according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a multi-stage turbine portion of a turbine flowmeter according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 and 2:
a multi-stage turbine of a turbine flow meter, comprising:
a fixed shaft 10;
the guide cone 20 is arranged at the end part of the fixed shaft 10, and the taper direction of the guide cone 20 is opposite to the fluid flowing direction;
the first turbine 30 is sleeved on the fixed shaft 10 and is positioned on the left side of the guide cone 20;
the second turbine 40 is sleeved on the fixed shaft 10 and located on the left side of the first turbine 30, and the projected area of the second turbine 40 along the fixed shaft 10 is larger than the projected area of the first turbine 30 along the fixed shaft 10;
the third turbine 50 is sleeved on the fixed shaft 10 and located on the left side of the second turbine 40, and the projected area of the third turbine 50 along the fixed shaft 10 is larger than the projected area of the second turbine 40 along the fixed shaft 10;
the fourth turbine 60 is sleeved on the fixed shaft 10 and located on the left side of the third turbine 50, and the projected area of the fourth turbine 60 along the fixed shaft 10 is larger than the projected area of the third turbine 50 along the fixed shaft 10;
the fifth turbine 70 is sleeved on the fixed shaft 10 and located on the left side of the fourth turbine 60, and the projected area of the fifth turbine 70 along the fixed shaft 10 is larger than the projected area of the fourth turbine 60 along the fixed shaft 10;
the sixth turbine 80 is sleeved on the fixed shaft 10 and located on the left side of the fifth turbine 70, and the projection area of the sixth turbine 80 along the fixed shaft 10 is larger than the projection area of the fifth turbine 70 along the fixed shaft 10.
Further, first turbine 30 includes that first fixed axle sleeve 31 and hoop are located a plurality of first blades 32 of first fixed axle sleeve, second turbine 40 includes that fixed axle sleeve of second and hoop are located a plurality of second blades of the fixed axle sleeve of second, third turbine 50 includes that fixed axle sleeve of third and hoop are located a plurality of third blades of the fixed axle sleeve of third, fourth turbine 60 includes that fixed axle sleeve of fourth and hoop are located a plurality of fourth blades of the fixed axle sleeve of fourth, fifth turbine 70 includes that fixed axle sleeve of fifth and hoop are located a plurality of fifth blades of the fixed axle sleeve of fifth, sixth turbine 80 includes that fixed axle sleeve of sixth and hoop are located a plurality of sixth blades of the fixed axle sleeve of sixth.
Further, the length of the first blade 32 is smaller than that of the second blade, the length of the second blade is smaller than that of the third blade, the length of the third blade is smaller than that of the fourth blade, the length of the fourth blade is smaller than that of the fifth blade, and the length of the fifth blade is smaller than that of the sixth blade.
Further, the first blade 32 is 15 to 45 ° to the fluid flow direction, the second blade is 15 to 45 ° to the fluid flow direction, the third blade is 15 to 45 ° to the fluid flow direction, the fourth blade is 15 to 45 ° to the fluid flow direction, the fifth blade is 15 to 45 ° to the fluid flow direction, and the sixth blade is 15 to 45 ° to the fluid flow direction.
Further, the first fixing shaft sleeve 31 is connected with the fixing shaft 10 through a key or a pin, the second fixing shaft sleeve is connected with the fixing shaft through a key or a pin, the third fixing shaft sleeve is connected with the fixing shaft through a key or a pin, the fourth fixing shaft sleeve is connected with the fixing shaft through a key or a pin, the fifth fixing shaft sleeve is connected with the fixing shaft through a key or a pin, and the sixth fixing shaft sleeve is connected with the fixing shaft through a key or a pin.
The utility model discloses turbine flowmeter's multistage turbine structure can reduce the impact of introducing the fluid to the blade to, improve turbine flowmeter's measurement accuracy and stability. And the generated rotating torque is smaller, the rotating speed of the impeller is lower at the same flow speed, the generated flow speed distortion and the rotating flow caused by the turbine are also smaller, so that the length of the upstream and downstream straight pipe sections required during installation is smaller, the centrifugal force of unbalanced rotation is small, the frictional resistance is low, and the service life of the flowmeter bearing is prolonged.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept, and these should also be considered as within the scope of the present invention.
Claims (5)
1. A multi-stage turbine of a turbine flowmeter, comprising:
a fixed shaft (10);
the flow guide cone (20) is arranged at the end part of the fixed shaft (10), and the taper direction of the flow guide cone (20) is opposite to the fluid flowing direction;
the first turbine (30) is sleeved on the fixed shaft (10) and is positioned on the left side of the guide cone (20);
the second turbine (40) is sleeved on the fixed shaft (10) and is positioned on the left side of the first turbine (30), and the projection area of the second turbine (40) along the fixed shaft (10) is larger than that of the first turbine (30) along the fixed shaft (10);
the third turbine (50) is sleeved on the fixed shaft (10) and is positioned on the left side of the second turbine (40), and the projection area of the third turbine (50) along the fixed shaft (10) is larger than that of the second turbine (40) along the fixed shaft (10);
the fourth turbine (60) is sleeved on the fixed shaft (10) and is positioned on the left side of the third turbine (50), and the projection area of the fourth turbine (60) along the fixed shaft (10) is larger than that of the third turbine (50) along the fixed shaft (10);
the fifth turbine (70) is sleeved on the fixed shaft (10) and is positioned on the left side of the fourth turbine (60), and the projection area of the fifth turbine (70) along the fixed shaft (10) is larger than that of the fourth turbine (60) along the fixed shaft (10);
the sixth turbine (80) is sleeved on the fixed shaft (10) and located on the left side of the fifth turbine (70), and the projection area of the sixth turbine (80) along the fixed shaft (10) is larger than the projection area of the fifth turbine (70) along the fixed shaft (10).
2. The multi-stage turbine of a turbine flow meter according to claim 1, wherein the first turbine (30) comprises a first stationary hub (31) and a plurality of first blades (32) circumferentially provided to the first stationary hub, the second turbine (40) comprises a second fixed shaft sleeve and a plurality of second blades annularly arranged on the second fixed shaft sleeve, the third turbine (50) comprises a third fixed shaft sleeve and a plurality of third blades annularly arranged on the third fixed shaft sleeve, the fourth turbine (60) comprises a fourth fixed shaft sleeve and a plurality of fourth blades annularly arranged on the fourth fixed shaft sleeve, the fifth turbine (70) comprises a fifth fixed shaft sleeve and a plurality of fifth blades annularly arranged on the fifth fixed shaft sleeve, the sixth turbine (80) includes a sixth fixed sleeve and a plurality of sixth blades circumferentially provided to the sixth fixed sleeve.
3. The multi-stage turbine of a turbine flowmeter of claim 2, wherein the first vane (32) is shorter in length than the second vane, the second vane is shorter in length than the third vane, the third vane is shorter in length than the fourth vane, the fourth vane is shorter in length than the fifth vane, and the fifth vane is shorter in length than the sixth vane.
4. The multi-stage turbine of a turbine flowmeter of claim 2, wherein the first blade (32) is 15 to 45 ° to the fluid flow direction, the second blade is 15 to 45 ° to the fluid flow direction, the third blade is 15 to 45 ° to the fluid flow direction, the fourth blade is 15 to 45 ° to the fluid flow direction, the fifth blade is 15 to 45 ° to the fluid flow direction, and the sixth blade is 15 to 45 ° to the fluid flow direction.
5. The multi-stage turbine of a turbine flow meter according to claim 2, wherein the first stationary sleeve (31) is keyed or pinned to the stationary shaft (10), the second stationary sleeve is keyed or pinned to the stationary shaft, the third stationary sleeve is keyed or pinned to the stationary shaft, the fourth stationary sleeve is keyed or pinned to the stationary shaft, the fifth stationary sleeve is keyed or pinned to the stationary shaft, and the sixth stationary sleeve is keyed or pinned to the stationary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020023083.7U CN210922718U (en) | 2020-01-07 | 2020-01-07 | Multistage turbine of turbine flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020023083.7U CN210922718U (en) | 2020-01-07 | 2020-01-07 | Multistage turbine of turbine flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210922718U true CN210922718U (en) | 2020-07-03 |
Family
ID=71353005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020023083.7U Active CN210922718U (en) | 2020-01-07 | 2020-01-07 | Multistage turbine of turbine flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210922718U (en) |
-
2020
- 2020-01-07 CN CN202020023083.7U patent/CN210922718U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201251462Y (en) | Fluid metering device | |
| EP3232178B1 (en) | Rotary machine state observation device, rotary machine, and rotary machine state observation method | |
| CN104454564B (en) | Based on the axial-flow pump device diffuser hydraulic optimization method of test | |
| Dong et al. | Steady and unsteady flow field at pump and turbine exits of a torque converter | |
| CN210922718U (en) | Multistage turbine of turbine flowmeter | |
| CN105387893B (en) | Impeller structure of turbine flowmeter and turbine flowmeter thereof | |
| CN204344481U (en) | Axial-flow pump device diffuser average exit speed circular rector affects the model test apparatus of outlet passage hydraulic performance | |
| CN210952961U (en) | Turbine of turbine flowmeter | |
| CN2283235Y (en) | Impeller sensing flowmeter | |
| Brun et al. | Laser velocimeter measurements in the pump of an automotive torque converter: part II—unsteady measurements | |
| CN210268751U (en) | Liquid turbine flowmeter with multiple rectifying devices | |
| CN210981383U (en) | Portable turbine flowmeter | |
| CN204239321U (en) | With the self-balance type multistage centrifugal pump of axial-force testing device | |
| CN207920960U (en) | To the leafy centrifugal type wind wheel with the double-layer structure that comes into leaves backward before a kind of | |
| CN218760492U (en) | Noise reduction type centrifugal fan | |
| CN2341124Y (en) | Magnetic impeller sensing flow meter | |
| CN202676215U (en) | Intelligent turbine flowmeter | |
| CN114777853A (en) | Turbine flowmeter for measuring micro gas flow | |
| CN212871318U (en) | Curved surface impeller blade structure | |
| SU1139971A2 (en) | Turbine-type flowmeter | |
| CN101135623B (en) | Turbine type liquid viscosity coefficient early warning device | |
| US3353406A (en) | Mass-flow determining devices | |
| Pinarbasi et al. | Detailed stress tensor measurements in a centrifugal compressor vaneless diffuser | |
| TANAKA et al. | On the partial flow rate performance of axial-flow compressor and rotating stall: 2nd report, influences of impeller load and a study of the mechanism of unstable performances | |
| Szlivka et al. | Measured and non-free vortex design results of axial flow fans |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |