CN101750116B - Force-summing element used for flowmeter - Google Patents
Force-summing element used for flowmeter Download PDFInfo
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- CN101750116B CN101750116B CN2010101118623A CN201010111862A CN101750116B CN 101750116 B CN101750116 B CN 101750116B CN 2010101118623 A CN2010101118623 A CN 2010101118623A CN 201010111862 A CN201010111862 A CN 201010111862A CN 101750116 B CN101750116 B CN 101750116B
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- flowmeter
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- 238000005070 sampling Methods 0.000 claims abstract description 6
- 230000002787 reinforcement Effects 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention provides a force-summing element used for a flowmeter, comprising a force-summing element fixed at the lower end of a gravitation rod of a sampling device of the flowmeter. The invention is characterized in that the force-summing element is long-striped force-element slice which is arranged longitudinally; the force-summing slice comprises a main body part which is provided with an incident flow force-summing face arranged opposite to the fluid body flow direction, and the longitudinal section of the main body part is in an arc shape. The force-summing element adopts arc-shaped incident flow force-summing surface; the fluid body flowing through the arc-shaped force-summing surface of the force-summing slice generates action force on the arc-shaped force-summing surface of the force-summing slice, and the fluid body generates upward extrusion under the guide of the arc-shaped force-summing surface, damages the fluid body flowing through the two sides of the force-summing slice and generates neatly-arranged vortex by differential pressure, prevents the fluid body from generating neatly-arranged strong vortex on the reverse flow surface of the force-summing slice, and eliminates unfavorable effects on the detection process due to shaking and deflection of the force-summing element, thus greatly improving work stability of the force-summing element and improving detection reliability of the flowmeter and prolonging service life of the flowmeter device.
Description
Technical field
The present invention relates to flow detector, the force-summing element that particularly a kind of flowmeter is used.
Background technology
Moment formula flowmeter is at coaxial placement in measuring tube center and the rigidly connected force-summing element of sensor, and when measured medium during with certain flow rate, media flow produces corresponding momentum, and this momentum directly acts on the force-summing element; Because force-summing element and sensor are rigidly connected, fluid momentum produces an acting force by force-summing element to sensor, and acting force converts electric signal to through sensor, after preposition amplification, DA conversion and data processing, can detect corresponding flow and total amount, realize testing goal.
The force-summing element of existing flowmeter is one to be fixed on the target sheet of gravitation bar bottom, rounded or the vertical bar platen surface of the stress surface of target sheet, when being subjected to fluid force, fluid forms easily the eddy-currents of neat distribution after by the force-summing element stress surface at the back of force-summing element, cause force-summing element to shake, deflect, job stability is not good, influences the accuracy of detection of flowmeter, and cause the bad injury of sensor easily, shorten the serviceable life of sensor.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the force-summing element that provides a kind of flowmeter to use to solve the technical matters that force-summing element is disturbed by eddy-currents, guarantees that the flowmeter working stability is reliable, improves accuracy of detection, prolongs the physical life of flowmeter.
Purpose of the present invention is achieved through the following technical solutions:
The force-summing element that a kind of flowmeter is used, comprise the force-summing element that is fixed in flowmeter sampling apparatus gravitation bar lower end, it is characterized in that: described force-summing element is stressed of the strip of vertical layout, this stressed comprise have with direction of flow arrange in opposite directions meet stream stress surface main part, the longitudinal section of main part is curved.
Further, above-mentioned stressed comprises also and is fixed in the main part top vertically extending connecting portion that makes progress that this connecting portion is fixedlyed connected with the lower end of gravitation bar.
For improving stressed structural strength, the lee side both sides of the edge of above-mentioned stressed connecting portion are arranged with and stressed integrated stiffened edge, and the lee side of stiffened edge and stressed connecting portion is arranged vertically.
The xsect of aforementioned body portion is w shape substantially, and it is met stream stress surface middle part and is suppressed with the arc groove that runs through its length direction, and the dual-side of main part is converted into the dip plane to its lee side one lateral bending; The both sides of the edge of stressed connecting portion are to the stiffened edge of lee side one lateral buckling formation symmetric arrangement, and stiffened edge and stressed lee side are arranged vertically.
The lee side middle part of above-mentioned stressed main part also is installed with the reinforcement of sheet, and this reinforcement longitudinally is vertically fixed on the lee side of main part.
Above-mentioned force-summing element and gravitation bar are one-body molded.
The present invention has the following advantages:
Force-summing element provided by the invention adopts arc to meet stressed of the strip of stream stress surface, the flow through fluid of stressed arc stress surface, behind stressed arc stress surface generation acting force, this part fluid produces under the guiding of arc stress surface and upwards pushes phenomenon, the flow through fluid of stressed both sides of destruction is produced the whirlpool of marshalling by pressure reduction, prevent that fluid from forming the strong whirlpool phenomenon of marshalling at stressed lee side, the stress eliminating element is shaken, deflect to the harmful effect of testing process, improve the job stability of force-summing element greatly, improve the detecting reliability of flowmeter and the serviceable life of measuring apparatus.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is the structural representation of the force-summing element that provides of first embodiment of the invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the amplification profile along A-A direction among Fig. 1.
Fig. 4 is the schematic perspective view of Fig. 1.
Fig. 5 is the user mode synoptic diagram of force-summing element among Fig. 1.
Fig. 6 is the structural representation of the force-summing element that provides of second embodiment of the invention.
Fig. 7 is the right view of Fig. 6.
Fig. 8 is the amplification profile along B-B direction among Fig. 6.
Fig. 9 is the schematic perspective view of Fig. 6.
Figure 10 is the structural representation of the force-summing element that provides of third embodiment of the invention.
Figure 11 is the lee side schematic perspective view of the force-summing element that provides of third embodiment of the invention.
Figure 12 is the amplification profile along C-C direction among Figure 10.
Figure 13 is the lee side schematic perspective view of the force-summing element that provides of fourth embodiment of the invention.
Figure 14 is the amplification profile along D-D direction among Figure 13.
Figure 15 is the amplification profile along E-E direction among Figure 13.
Embodiment
Embodiment one: with reference to Fig. 5.A kind of flowmeter mainly is made of data processing equipment 1, sensing device 2 and sampling apparatus 3.Sampling apparatus 3 comprises gravitation bar 31 and fixedlys connected the force-summing element that is gravitation bar 31 bottoms.Data processing equipment 1 is made up of signal processing circuit and display; Sensing device 2 comprises sensor holder and the sensor of device on sensor holder.Data processing equipment 1 and sensing device 2 are prior art, are not described in detail at this.Be described in detail below in conjunction with the force-summing element of accompanying drawing sampling apparatus:
Referring to figs. 1 through Fig. 4 and in conjunction with Fig. 5.Above-mentioned force-summing element is stressed 32 of the strip of vertical layout, this stressed 32 comprises having and arranges in opposite directions with direction of flow and to meet the upwards vertical connecting portion that extends to form 322 of the stream main part 321 of stress surface and main part upper end that connecting portion 322 and main part 321 are one-body molded.The longitudinal section of stressed main part 321 is curved, xsect is rectangle substantially; The upper end of connecting portion 322 offers bolt penetration hole 3221.Be fixed together by bolt, nut between connecting portion 322, the gravitation bar 31, with stressed 32 lower end that is fixed on the gravitation bar.But be not limited to this, also can adopt as other fixed forms such as welding, be threaded between force-summing element and the gravitation bar, in like manner, force-summing element also can be one-body molded with the gravitation bar.
Embodiment two: with reference to Fig. 6 to Fig. 9 and in conjunction with Fig. 5.What present embodiment and embodiment one were different is: the lee side middle part of stressed main part 321 also is fixedly welded with the reinforcement 323 of sheet, and this reinforcement 323 longitudinally is vertically fixed on the lee side of main part 321.The xsect of stressed main part 321 and reinforcement 323 auxiliary sections is the T font substantially.The effect of reinforcement 323 is the structural strengths that improve stressed 32, and simultaneously, reinforcement 323 also forms baffle, and the guiding fluid steadily flows forward, further improves stressed 32 job stability.All the other structures and use-pattern are with reference to embodiment one.
Embodiment three: with reference to Figure 10 to Figure 12 and in conjunction with Fig. 5.What present embodiment and embodiment one were different is: the lee side both sides of the edge of stressed connecting portion 322 are arranged with and stressed integrated stiffened edge 324, and stiffened edge 324 is arranged vertically with the lee side of stressed connecting portion 322.Improved stressed 32 structural strength greatly.All the other structures and use-pattern are with reference to embodiment one.
Embodiment four: with reference to Figure 13 to Figure 15 and in conjunction with Fig. 5.What present embodiment and embodiment one were different is: the xsect of stressed main part 321 is W shape substantially, it is met stream stress surface middle part and is suppressed with the arc groove 325 that runs through its length direction, main part 321 dual-sides of arc groove both sides form the dip plane of symmetric arrangement to main part lee side one lateral buckling; The dual-side edge of connecting portion 322 vertically is bent to form reinforced sheet 326 to lee side one side symmetry.By the setting of arc groove 325, improved stressed 32 structural strength greatly.All the other structures and use-pattern are with reference to embodiment one.
The above only is preferred embodiment of the present invention, so can not limit scope of the invention process with this, i.e. the equivalence of doing according to the present patent application claim and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.
Claims (6)
1. force-summing element that flowmeter is used, comprise the force-summing element that is fixed in flowmeter sampling apparatus gravitation bar lower end, it is characterized in that: described force-summing element is stressed of the strip of vertical layout, this stressed comprise have with direction of flow arrange in opposite directions meet stream stress surface main part, the longitudinal section of main part is curved.
2. force-summing element according to claim 1 is characterized in that: described stressed comprises also and is fixed in the main part top vertically extending connecting portion that makes progress that this connecting portion is fixedlyed connected with the lower end of gravitation bar.
3. force-summing element according to claim 2 is characterized in that: the lee side both sides of the edge of described stressed connecting portion are arranged with and stressed integrated stiffened edge, and the lee side of stiffened edge and stressed connecting portion is arranged vertically.
4. force-summing element according to claim 2 is characterized in that: the xsect of described main part is w shape substantially, and it is met stream stress surface middle part and is suppressed with the arc groove that runs through its length direction, and the dual-side of main part is converted into the dip plane to its lee side one lateral bending; The both sides of the edge of stressed connecting portion are to the stiffened edge of lee side one lateral buckling formation symmetric arrangement, and stiffened edge and stressed lee side are arranged vertically.
5. force-summing element according to claim 1 and 2 is characterized in that: the lee side middle part of described stressed main part also is installed with the reinforcement of sheet, and this reinforcement longitudinally is vertically fixed on the lee side of main part.
6. force-summing element according to claim 1 and 2 is characterized in that: described force-summing element and gravitation bar are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101118623A CN101750116B (en) | 2010-02-22 | 2010-02-22 | Force-summing element used for flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101118623A CN101750116B (en) | 2010-02-22 | 2010-02-22 | Force-summing element used for flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101750116A CN101750116A (en) | 2010-06-23 |
| CN101750116B true CN101750116B (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101118623A Expired - Fee Related CN101750116B (en) | 2010-02-22 | 2010-02-22 | Force-summing element used for flowmeter |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043469B (en) * | 2015-05-20 | 2019-09-27 | 清华大学 | A kind of flow sensor and its manufacturing method |
| CN105652031A (en) * | 2015-12-10 | 2016-06-08 | 无锡拓能自动化科技有限公司 | Air conditioner pipeline flow velocity monitor |
| CN105424974B (en) * | 2015-12-10 | 2018-09-21 | 诸暨天雅科技有限公司 | A kind of air-conditioning duct flow monitor |
| DE102019008890A1 (en) * | 2019-12-19 | 2021-06-24 | Diehl Metering Gmbh | Flow meter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653478U (en) * | 2010-02-22 | 2010-11-24 | 泉州日新流量仪器仪表有限公司 | Stressed element for flow meter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000066979A1 (en) * | 1999-05-05 | 2000-11-09 | Venture Measurement Company, Llc | Force-sensing mass flow meter |
| CN2432551Y (en) * | 2000-07-21 | 2001-05-30 | 深圳清华大学研究院 | Non-displacement target type flow sensor |
| US7389684B2 (en) * | 2005-11-03 | 2008-06-24 | Roy Jude B | Gas lift flow surveillance device |
| CN2859465Y (en) * | 2006-05-26 | 2007-01-17 | 熊焕祈 | Strain target-type flowmeter |
| CN100425953C (en) * | 2006-12-15 | 2008-10-15 | 吉林大学 | External drum internal target rod flow sensor |
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2010
- 2010-02-22 CN CN2010101118623A patent/CN101750116B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653478U (en) * | 2010-02-22 | 2010-11-24 | 泉州日新流量仪器仪表有限公司 | Stressed element for flow meter |
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| CN101750116A (en) | 2010-06-23 |
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Granted publication date: 20111012 |