CN112504360A - Precession vortex flowmeter turner, precession vortex flowmeter and manufacturing method - Google Patents
Precession vortex flowmeter turner, precession vortex flowmeter and manufacturing method Download PDFInfo
- Publication number
- CN112504360A CN112504360A CN202011555045.7A CN202011555045A CN112504360A CN 112504360 A CN112504360 A CN 112504360A CN 202011555045 A CN202011555045 A CN 202011555045A CN 112504360 A CN112504360 A CN 112504360A
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- vortex flowmeter
- spinner
- precession vortex
- cylindrical section
- blade
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000007858 starting material Substances 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 26
- 238000012545 processing Methods 0.000 claims description 22
- 238000010146 3D printing Methods 0.000 claims description 13
- 238000005260 corrosion Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 13
- 230000007797 corrosion Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000012255 powdered metal Substances 0.000 description 2
- 239000008207 working material Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
Abstract
A precession vortex flowmeter starter, a precession vortex flowmeter and a manufacturing method thereof, wherein the precession vortex flowmeter starter comprises a mandrel and a plurality of blades; the surface of the spinner is provided with an anticorrosive coating. Every blade twines in the periphery of dabber with the heliciform, and the one end of a plurality of blades is connected in the end of dabber, and wherein, this kind of spinner structure is comparatively simple, only includes dabber and a plurality of blade, and does not have the requirement to the lead of every blade, can select the lead of blade according to actual conditions to the difficult radian that exists of blade that uses.
Description
Technical Field
The invention belongs to the field of metering equipment, and particularly relates to a precession vortex flowmeter screwdriver, a precession vortex flowmeter and a manufacturing method thereof.
Background
The precession vortex flowmeter is a speed flowmeter, is widely applied to trade metering in industries such as petroleum, chemical industry, electric power, metallurgy and urban gas at present, has the characteristics of wide flow range, simple structure, dirt resistance and the like, and has the working principle of utilizing the vortex precession phenomenon of fluid to measure flow. The rotor, also called vortex generator, is the core component of the precession vortex flowmeter, and its structure directly affects the pressure loss of the flowmeter.
At present, a traditional precession vortex flowmeter rotator adopts a CNC five-axis milling machine to process a blade and a central shaft on a whole aluminum alloy bar, although the mode of using the whole aluminum alloy bar for integral milling is easy to obtain a required part shape and a smaller blade lead, the blade needs to be processed due to the use of the whole aluminum alloy bar, a milling cutter is needed to completely remove materials between the blades, and the lead of a helical blade is short, so that the length processed by the CNC five-axis milling machine is relatively short, the processing needs longer time, the processing efficiency is low, and the blade is easy to have radian; meanwhile, the aluminum alloy material has limited corrosion resistance, and when a fluid with strong corrosivity is measured, the spinner fails due to corrosion, so that the measuring accuracy and the service life of the flowmeter are reduced.
Therefore, it is desirable to provide a rotor and a manufacturing method thereof, which can effectively solve the problems that the lead of the blade of the rotor is short and the blade is easy to be curved and the rotor is easy to corrode in the prior art.
Disclosure of Invention
The invention aims to provide a screw-in vortex flowmeter rotator, which solves the problems that the blade lead of the rotator in the prior art is short, the radian is easy to exist and the rotator is easy to corrode.
In order to achieve the above object, the present invention provides a precession vortex flowmeter rotor, comprising a mandrel and a plurality of blades, each of which is spirally wound around an outer circumference of the mandrel; and an anti-corrosion coating is arranged on the surface of the spinner.
Optionally, the mandrel comprises a cylindrical section and a pointed tip arranged at one end of the cylindrical section, and the plurality of blades are wound on the periphery of the cylindrical section at equal intervals.
Optionally, the tip is shaped like a top, and the incident angle α of the tip is 50 ° to 60 °.
Optionally, the outer diameter of the blade gradually increases from the one end to the other end of the cylindrical section in the axial direction of the cylindrical section.
Optionally, the expansion ratio of the outer diameter of the blade is 2 from the one end to the other end of the cylindrical section in the axial direction of the cylindrical section.
Optionally, the thickness of the blade ranges from 1 mm to 1.5 mm.
A precession vortex flowmeter comprises the precession vortex flowmeter starter.
Optionally, the detection device further comprises a shell and a derotator, wherein the rotator and the derotator are arranged in the shell along the axial direction of the shell, and a detection section is formed between the rotator and the derotator.
A method of manufacturing the precession vortex flowmeter rotor, the method comprising:
establishing a three-dimensional model of the spinner;
preparing a processing material, and performing 3D printing according to the three-dimensional model by using the processing material to obtain a spinner preform;
and spraying an anticorrosive material on the surface of the spinner prefabricated product to obtain the spinner.
Optionally, the working material is a powdered metal material.
The invention has the beneficial effects that:
each blade is spirally wound on the periphery of the mandrel, one end of each blade is connected to the tail end of the mandrel, the structure of the spinner is simple, the spinner only comprises the mandrel and the blades, the lead of each blade is not required, the lead of the blade can be selected according to actual conditions, and the used blades are not easy to generate radian; meanwhile, the surface of the spinner is provided with the anticorrosive coating, so that the metering precision of the spinner is not reduced due to corrosion when the spinner meters the fluid with stronger corrosivity. The technology adopted for manufacturing the spinner is a 3D printing technology, the 3D printing technology can effectively avoid the problems of short blade lead and easy radian of the spinner caused by the adoption of the traditional processing technology, the desired spinner can be printed only by inputting related parameters in a program, meanwhile, the 3D printing technology can greatly improve the production efficiency, the selection range of processing materials for manufacturing the spinner is wide, and the processing materials with strong corrosion resistance can be selected.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
FIG. 1 shows a schematic structural view of a precession vortex flowmeter rotor according to an embodiment of the present invention.
Figure 2 shows a schematic diagram of a precession vortex flowmeter according to an embodiment of the present invention.
Fig. 3 shows a flow chart of a manufacturing method according to an embodiment of the invention.
Description of the reference numerals
1. A mandrel; 11. a cylindrical section; 12. a tip; 2. a blade; 3. a spinner; 4. a derotation device; 5. a housing; 6. and detecting the section.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The precession vortex flowmeter starter comprises a mandrel and a plurality of blades, wherein each blade is spirally wound on the periphery of the mandrel; the surface of the spinner is provided with an anticorrosive coating.
Specifically, each blade is spirally wound on the periphery of the mandrel, one end of each blade is connected to the tail end of the mandrel, the structure of the spinner is simple, the spinner only comprises the mandrel and the blades, the lead of each blade is not required, the lead of each blade can be selected according to actual conditions, and the used blades are not easy to have radians; meanwhile, the surface of the spinner is provided with the anticorrosive coating, so that the metering precision of the spinner is not reduced due to corrosion when the spinner meters the fluid with stronger corrosivity.
In one example, the mandrel comprises a cylindrical section and a tip arranged at one end of the cylindrical section, and a plurality of blades are wound on the periphery of the cylindrical section at equal intervals.
In one example, the tip is in the shape of a top of a circle, and the incident angle α of the tip is 50 ° to 60 °.
In one example, the outer diameter of the blade gradually expands from one end of the cylindrical section to the other end thereof in the axial direction of the cylindrical section;
the expansion ratio of the outer diameter of the blade is 2 from one end to the other end of the cylindrical section in the axial direction of the cylindrical section.
Specifically, along the axial of cylinder section, from the one end of cylinder section to the other end, the external diameter of blade enlarges gradually, and this kind of design makes the spinner have the tapering from front to back, can be that fluid flow path transitivity is strong, and the pressure loss reduces, simultaneously, can make the gaseous vortex intensity of getting into the flowmeter strengthen, effectively reduces the measurement lower limit of flowmeter, widens flow range.
In one example, the thickness of the blade is in the range of 1 to 1.5 mm.
The precession vortex flowmeter comprises the precession vortex flowmeter starter.
In one example, the precession vortex flowmeter further includes a housing and a deswirler disposed within the housing along an axial direction of the housing, the deswirler and the deswirler forming a sensing section therebetween.
According to the invention, the manufacturing method is used for manufacturing the precession vortex flowmeter starter, and comprises the following steps:
establishing a three-dimensional model of the rotator;
preparing a processing material, and performing 3D printing according to the three-dimensional model by using the processing material to obtain a spinner preform;
and spraying an anticorrosive material on the surface of the spinner prefabricated product to obtain the spinner.
Specifically, a three-dimensional model of the spinner is built, a processing material is prepared, the processing material is used for conducting 3D printing according to the three-dimensional model to obtain a spinner prefabricated product, and an anticorrosive material is sprayed on the surface of the spinner prefabricated product to obtain the spinner; the 3D printing technology can effectively avoid the problems that the lead of the blade of the spinner is short and the radian is easy to appear caused by the adoption of the traditional processing technology, the desired spinner can be printed out as long as relevant parameters are input in a program, meanwhile, the 3D printing technology can greatly improve the production efficiency, the selection range of processing materials for manufacturing the spinner is wide, and the processing materials with strong corrosion resistance can be selected.
In one example, the working material is a powdered metal material.
Examples
As shown in fig. 1, a precession vortex flowmeter starter includes a mandrel 1 and a plurality of blades 2, each blade 2 being spirally wound around the outer circumference of the mandrel 1; the surface of the spinner 3 is provided with an anticorrosive coating.
The mandrel 1 comprises a cylindrical section 11 and a pointed end 12 arranged at one end of the cylindrical section 11, and the blades 2 are wound on the periphery of the cylindrical section 11 at equal intervals. The tip 12 is in the shape of a gyroscope, and the incident angle alpha of the tip 12 is 50-60 degrees. Along the axial direction of the cylindrical section 11, from one end of the cylindrical section 11 to the other end, the outer diameter of the blade 2 is gradually enlarged; the outer diameter of the vane 2 is enlarged by 2 from one end to the other end of the cylindrical section 11 in the axial direction of the cylindrical section 11. The thickness range of the blade 2 is 1-1.5 mm.
As shown in fig. 2, a precession vortex flowmeter comprises the precession vortex flowmeter starter.
The precession vortex flowmeter further comprises a shell 5 and a deswirler 4, wherein the screw-on starter 3 and the deswirler 4 are arranged in the shell 5 along the axial direction of the shell 5, and a detection section 6 is formed between the screw-on starter 3 and the deswirler 4.
As shown in fig. 3, a manufacturing method for manufacturing the precession vortex flowmeter starter, the method comprising:
establishing a three-dimensional model of the rotator 3;
preparing a processing material, and performing 3D printing according to the three-dimensional model by using the processing material to obtain a spinner preform;
and spraying an anticorrosive material on the surface of the spinner preform to obtain the spinner 3.
Wherein the processing material is a powdery metal material.
In summary, each blade is spirally wound on the periphery of the mandrel, and one end of each blade is connected to the tail end of the mandrel, so that the spinner is simple in structure, only comprises the mandrel and the blades, has no requirement on the lead of each blade, can select the lead of the blade according to actual conditions, and is not easy to have radian; meanwhile, the surface of the spinner is provided with the anticorrosive coating, so that the metering precision of the spinner is not reduced due to corrosion when the spinner meters the fluid with stronger corrosivity. The technology adopted for manufacturing the spinner is a 3D printing technology, the 3D printing technology can effectively avoid the problems of short blade lead and easy radian of the spinner caused by the adoption of the traditional processing technology, the desired spinner can be printed only by inputting related parameters in a program, meanwhile, the 3D printing technology can greatly improve the production efficiency, the selection range of processing materials for manufacturing the spinner is wide, and the processing materials with strong corrosion resistance can be selected.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A precession vortex flowmeter starter comprises a mandrel and a plurality of blades, wherein each blade is spirally wound on the periphery of the mandrel; and an anti-corrosion coating is arranged on the surface of the spinner.
2. The precession vortex flowmeter starter of claim 1 wherein said mandrel comprises a cylindrical section and a pointed tip disposed at one end of said cylindrical section, said plurality of vanes being equally spaced around an outer circumference of said cylindrical section.
3. The precession vortex flowmeter rotor of claim 2, wherein said tip is gyroscope-shaped, and an angle of incidence α of said tip is 50 ° to 60 °.
4. The precession vortex flowmeter rotor of claim 2, wherein an outer diameter of said vane gradually expands from said one end to another end of said cylindrical section in an axial direction of said cylindrical section.
5. The precession vortex flowmeter rotor of claim 4, wherein an expansion ratio of an outer diameter of said vane from said one end to another end of said cylindrical section in an axial direction of said cylindrical section is 2.
6. The precession vortex flowmeter rotor of claim 1, wherein the thickness of the blade is in the range of 1 to 1.5 mm.
7. A precession vortex flowmeter comprising a precession vortex flowmeter turner according to any of claims 1 to 6.
8. The precession vortex flowmeter of claim 7 further comprising a housing and a deswirler, said spinner and said deswirler being disposed within said housing in an axial direction of said housing, said spinner and said deswirler defining a sensing section therebetween.
9. A method of manufacturing a precession vortex flowmeter rotor according to any of claims 1-8, the method comprising:
establishing a three-dimensional model of the spinner;
preparing a processing material, and performing 3D printing according to the three-dimensional model by using the processing material to obtain a spinner preform;
and spraying an anticorrosive material on the surface of the spinner prefabricated product to obtain the spinner.
10. The manufacturing method according to claim 1, wherein the work material is a powdery metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011555045.7A CN112504360A (en) | 2020-12-24 | 2020-12-24 | Precession vortex flowmeter turner, precession vortex flowmeter and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011555045.7A CN112504360A (en) | 2020-12-24 | 2020-12-24 | Precession vortex flowmeter turner, precession vortex flowmeter and manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN112504360A true CN112504360A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011555045.7A Pending CN112504360A (en) | 2020-12-24 | 2020-12-24 | Precession vortex flowmeter turner, precession vortex flowmeter and manufacturing method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6065352A (en) * | 1999-06-18 | 2000-05-23 | American Meter Company | Turbine meter with a rotor having accuracy enhancing rotor blades |
| CN108254030A (en) * | 2017-12-18 | 2018-07-06 | 方芳 | A kind of distortion-free vortex precession flowmeter |
| CN207816365U (en) * | 2018-02-25 | 2018-09-04 | 天津加海仪表成套设备有限公司 | Gas turbine meter |
| CN209432192U (en) * | 2019-01-02 | 2019-09-24 | 安徽天维仪表有限公司 | A kind of pipe cyclone and swirl flowmeter |
| CN110487508A (en) * | 2019-08-20 | 2019-11-22 | 常州大学 | A kind of experimental provision for research level pipe gas-liquid two-phase spiral flow |
-
2020
- 2020-12-24 CN CN202011555045.7A patent/CN112504360A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6065352A (en) * | 1999-06-18 | 2000-05-23 | American Meter Company | Turbine meter with a rotor having accuracy enhancing rotor blades |
| CN108254030A (en) * | 2017-12-18 | 2018-07-06 | 方芳 | A kind of distortion-free vortex precession flowmeter |
| CN207816365U (en) * | 2018-02-25 | 2018-09-04 | 天津加海仪表成套设备有限公司 | Gas turbine meter |
| CN209432192U (en) * | 2019-01-02 | 2019-09-24 | 安徽天维仪表有限公司 | A kind of pipe cyclone and swirl flowmeter |
| CN110487508A (en) * | 2019-08-20 | 2019-11-22 | 常州大学 | A kind of experimental provision for research level pipe gas-liquid two-phase spiral flow |
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Application publication date: 20210316 |