CN201589634U - Rectifier for flowmeter - Google Patents
Rectifier for flowmeter Download PDFInfo
- Publication number
- CN201589634U CN201589634U CN201020300588XU CN201020300588U CN201589634U CN 201589634 U CN201589634 U CN 201589634U CN 201020300588X U CN201020300588X U CN 201020300588XU CN 201020300588 U CN201020300588 U CN 201020300588U CN 201589634 U CN201589634 U CN 201589634U
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- CN
- China
- Prior art keywords
- flowmeter
- rectifier
- fluid
- ring structure
- donut
- 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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- 239000012530 fluid Substances 0.000 claims abstract description 22
- 230000004323 axial length Effects 0.000 claims abstract description 7
- 235000012489 doughnuts Nutrition 0.000 claims description 23
- 210000002435 tendon Anatomy 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a rectifier for a flowmeter. The rectifier is of a multilayer ring structure and consists of a plurality of concentric rings with different radiuses. The concentric rings are connected by connecting ribs. A gap for fluid to pass through is reserved between every two adjacent concentric ring. The outer ring is provided with a turning edge for carrying out axial limit. The axial length of the multilayer ring structure is 0.2 to 0.5 times of the pipe diameter of the flowmeter. The rectifier has small volume, can be directly arranged inside the flowmeter and regulates a flowing state of the fluid stable to make the flowmeter accurately measure flow data.
Description
Technical field
The utility model relates to field of flow meters, particularly a kind of flowmeter rectifier.
Background technology
The flowmeter of existing fluid metering all is not provided with rectifier usually, but the commercial unit of having relatively high expectations for some accuracies of measuring, be to improve the accurate measurement of fluid flow, also have employing in the upstream of flowmeter and pipeline that flowmeter links to each other, rectifier to be set.And the rectifier that adopts at present is that some calibers small tubes identical with length is set in pipeline, when making fluid flow through this segment pipe, pass through from the gap between these small tubes and small tubes respectively, make the flow state of fluid through rectifier the time obtain adjusting and tend to be steady, the accuracy that helps measuring is improved.But because the existing length of forming the small tubes of rectifier is 3～30 times of set pipe diameter, the caliber that is equipment pipe is 100mm, it is 300～3000mm that the length of rectifier small tubes just requires, because of the length of rectifier oversize, can not be installed in the flowmeter, have only the outer upstream extremity that is connected on flowmeter.And the long rectifier of this length, also may cause fluid pass through reduced cross-sectional area after, when flowing out, long small tubes downstream end produces of short duration jet state, influence rectification effect, so rectifier of this structure, volume is bigger, the material that adopts is more, the cost height, and increase the installation connecting link of pipeline, also increased simultaneously the leakage hidden danger because of the junction poor sealing, and adopted its metering of rectifier of this structure still to have 6～7% error, the accuracy of metering is still waiting further raising.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, a kind of flowmeter rectifier is provided, it adopts the multilayer circular ring structure of the donut formation of a plurality of different radiis, leave the gap that fluid passes through between adjacent two donuts, the axial length of multilayer circular ring structure is 0.2～0.5 times of flowmeter caliber, the volume of rectifier is reduced, can be directly installed on flowmeter inside, the flow state adjustment of the fluid that will pass through is steady, makes flowmeter can accurately record data on flows.
The purpose of this utility model is achieved in that rectifier is the multilayer circular ring structure of the donut formation of a plurality of different radiis, each donut links to each other by dowel, leave the gap that fluid passes through between adjacent two donuts, outer annulus is provided with the limit of turning back that is used for axial limiting, and the axial length of described multilayer circular ring structure is 0.2～0.5 times of flowmeter caliber.
The cylindrical of described outer annulus is provided with and is used for the circumferentially convex tendon of location.
The radial thickness of described donut is less than or equal to the gap width that the fluid between adjacent two donuts passes through.
Owing to adopted such scheme, rectifier is the multilayer circular ring structure that the donut of a plurality of different radiis constitutes, leave the gap that fluid passes through between adjacent two donuts, the turbulence state of fluid is tended to be steady under the interception of multilayer annulus, the flow speed of passing through from the gap between the multilayer annulus reaches plateau, realizes the rectification of convection cell.The axial length of described multilayer circular ring structure is 0.2～0.5 times of flowmeter caliber, compared with prior art, the axial length of rectifier shortens greatly, volume reduces, make rectifier can be directly installed on flowmeter inside,, make flowmeter can obtain continuous data accurately for the detection of flowmeter provides flow speed fluid stably, metering precision is greatly improved, and adopt the error in dipping of the flowmeter of this rectifier to have only ± 1.5%.
On the outer annulus of multilayer circular ring structure, be provided with the limit of turning back that is used for axial limiting, cylindrical at outer annulus is provided with the convex tendon that is used for circumferential location, rectifier is installed can be positioned in the upstream extremity oral pore of flowmeter by axial and circumferential, and it is extremely convenient to install, locate.
The radial thickness of described donut is less than or equal to the gap width that the fluid between adjacent two donuts passes through, and it is little to be obstructed when making fluid through rectifier like this, by smoothly, reaches rectification effect simultaneously again.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is Facad structure figure of the present utility model;
Fig. 3 is that the A-A of Fig. 2 is to cut-open view;
Fig. 4 is the assembling synoptic diagram of the utility model and flowmeter.
In the accompanying drawing, 1 is flowmeter, and 2 is flowmeter counter, and 3 is ring flange, and 4 for cuing off the plane, and 5 is rectifier, and 6 is donut, and 6a is outer annulus, and 7 is dowel, and 8 is convex tendon, and 9 are the limit of turning back, and 10 is the gap.
Embodiment
Referring to Fig. 1 to Fig. 3, the utility model rectifier is the multilayer circular ring structure that the donut 6 of a plurality of different radiis constitutes, and each donut 6 links to each other by dowel 7, dowel 7 and donut 6 structure that is formed in one.Described dowel 7 can be provided with many, divides equally 360 ° of circles with four and is set to good.Leave the gap 10 that fluid passes through between adjacent two donuts 6 of described multilayer circular ring structure, the radial thickness of each donut 6 is less than or equal to gap 10 width that the fluid between adjacent two donuts passes through.Be provided with the limit 9 of turning back that is used for axial limiting on the outer annulus 6a of multilayer circular ring structure, the cylindrical of described outer annulus 6a is provided with and is used for the circumferentially convex tendon 8 of location.The axial length of described multilayer circular ring structure is 0.2～0.5 times of flowmeter caliber.
Referring to Fig. 4, the utility model rectifier 5 is installed in the installation counterbore that the upstream extremity ring flange 3 of flowmeter 1 is provided with, make the margin of turning back that is used for axial limiting of rectifier 5 outer annulus be positioned at the installation counterbore, be used for the convex tendon of circumferential location and the pore wall wringing fit of flowmeter 1, perhaps be stuck in the groove that is provided with on the pore wall, formation axial and circumferential location, make rectifier 1 be installed on the flowmeter 1 after, can not be moved.The top of described flowmeter 1 is provided with flowmeter counter 2, and the flow of the fluid of process flowmeter can be read from flowmeter counter 2.Bottom at the ring flange 3 of the upstream and downstream of flowmeter 1 end, also can be provided with and cut off plane 4, two ring flanges to cut off plane 4 parallel, and be positioned at the center of gravity line that is used on the pipe 1 that fluid passes through perpendicular to flowmeter counter 2, make flowmeter 1 can rollover phenomenon not take place when placing, the collision of avoiding rolling causes flowmeter to damage.
Claims (3)
1. flowmeter rectifier, it is characterized in that: rectifier is the multilayer circular ring structure that the donut of a plurality of different radiis constitutes, each donut links to each other by dowel, leave the gap that fluid passes through between adjacent two donuts, outer annulus is provided with the limit of turning back that is used for axial limiting, and the axial length of described multilayer circular ring structure is 0.2～0.5 times of flowmeter caliber.
2. a kind of flowmeter rectifier according to claim 1 is characterized in that: the cylindrical of described outer annulus is provided with and is used for the circumferentially convex tendon of location.
3. a kind of flowmeter rectifier according to claim 1 is characterized in that: the radial thickness of described donut is less than or equal to the gap width that the fluid between adjacent two donuts passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020300588XU CN201589634U (en) | 2010-01-13 | 2010-01-13 | Rectifier for flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020300588XU CN201589634U (en) | 2010-01-13 | 2010-01-13 | Rectifier for flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201589634U true CN201589634U (en) | 2010-09-22 |
Family
ID=42749421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020300588XU Expired - Fee Related CN201589634U (en) | 2010-01-13 | 2010-01-13 | Rectifier for flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201589634U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346057A (en) * | 2011-09-26 | 2012-02-08 | 威海市天罡仪表股份有限公司 | Conical rectifier |
| CN104198007A (en) * | 2014-07-24 | 2014-12-10 | 沈阳市航宇星仪表有限责任公司 | Gas rectifying device with spiral rectifying piece |
| CN105092101A (en) * | 2015-09-16 | 2015-11-25 | 合肥瑞纳表计有限公司 | Ultrasonic calorimeter |
| CN109115287A (en) * | 2018-09-17 | 2019-01-01 | 浙江威星智能仪表股份有限公司 | A kind of ultrasonic water meter based on speed difference built-in reflective device |
| CN111779868A (en) * | 2020-08-04 | 2020-10-16 | 嵊州市浙江工业大学创新研究院 | Bottled liquefied petroleum gas pressure regulator with rectification function |
-
2010
- 2010-01-13 CN CN201020300588XU patent/CN201589634U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346057A (en) * | 2011-09-26 | 2012-02-08 | 威海市天罡仪表股份有限公司 | Conical rectifier |
| CN104198007A (en) * | 2014-07-24 | 2014-12-10 | 沈阳市航宇星仪表有限责任公司 | Gas rectifying device with spiral rectifying piece |
| CN104198007B (en) * | 2014-07-24 | 2017-04-05 | 辽宁航宇星物联仪表科技有限公司 | Spiral commutator segment gas rectifying device |
| CN105092101A (en) * | 2015-09-16 | 2015-11-25 | 合肥瑞纳表计有限公司 | Ultrasonic calorimeter |
| CN109115287A (en) * | 2018-09-17 | 2019-01-01 | 浙江威星智能仪表股份有限公司 | A kind of ultrasonic water meter based on speed difference built-in reflective device |
| CN111779868A (en) * | 2020-08-04 | 2020-10-16 | 嵊州市浙江工业大学创新研究院 | Bottled liquefied petroleum gas pressure regulator with rectification function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING QIANWEI INSTRUMENT CO., LTD. Free format text: FORMER NAME: CHONGQING QIANWEI METER FACTORY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400021, No. 69, Mount Huangshan Avenue, North New District, Chongqing Patentee after: Chongqing Qianwei Instrument Co., Ltd. Address before: 400021, No. 69, Mount Huangshan Avenue, North New District, Chongqing Patentee before: Chongqing Qianwei Meter Factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20130113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |