CN101226071A - Ingenious flux induction meter for measurement precision - Google Patents
Ingenious flux induction meter for measurement precision Download PDFInfo
- Publication number
- CN101226071A CN101226071A CNA200710017239XA CN200710017239A CN101226071A CN 101226071 A CN101226071 A CN 101226071A CN A200710017239X A CNA200710017239X A CN A200710017239XA CN 200710017239 A CN200710017239 A CN 200710017239A CN 101226071 A CN101226071 A CN 101226071A
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- CN
- China
- Prior art keywords
- flow
- resistance material
- thermal resistance
- choked flow
- cover plate
- 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.)
- Pending
Links
- 230000006698 induction Effects 0.000 title abstract description 7
- 238000005259 measurement Methods 0.000 title description 2
- 230000004907 flux Effects 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 39
- 230000035945 sensitivity Effects 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a flow rate induction meter, in particular to a household flow rate induction meter for accurate measuring sensitivity of flow meter by user, which is characterized in that: a heat resistance material 2 is arranged at upper port of a measuring tube 1, the heat-resistance material 2 is connected with a cover plate 5, a strain sensor 7 is arranged fixedly at one end of the cover plate 5, a flow-resistance part 9 is connected vertically at the other end of the cover plate 5, a flow-resistance surface 12 is arranged at rear end of the flow-resistance part 9 and suspended in the tube cavity of the measuring tube 1, the guide protrusions 10 at top end of the flow-resistance plate 11 in the upper and lower tube cavities are opposite each other on the same horizontal plane, the flow-resistance surface 12 is arranged below the same plane formed by of the guide protrusions of the upper and lower flow-resistance plates, and has completely same gaps as the guide protrusions of the upper and lower flow-resistance plate 11, so that the edges of the flow-resistance surface 12 respectively have the same cross-sectional area as the water guide channel formed by the upper and lower guide protrusions 10. The flow rate induction meter has the advantages of low cost, high sensing precision and meeting the requirement of economy and practicability of household flow meter.
Description
Technical field
The present invention relates to a kind of flow sensing meter, particularly a kind of flow sensing meter that is applied to the family with a kind of measuring accuracy sensitivity of flow metering.
Background technology
The metering of present indoor flow, generally adopt the civilian flowmeter of not high rotor of measuring accuracy or spiral type, and measuring media there is certain requirement, the ultrasonic flow meter that measuring accuracy is higher, though it is less demanding to measuring media, but the cost height can't be civilian, can't satisfy the accuracy requirement of family with the table low discharge simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of flow sensing meter of measuring accuracy sensitivity, its cost is lower, and the sensing accuracy height can satisfy economy and the practicality requirement of family with the table metering.
Technical scheme of the present invention is, design a kind of flow sensing meter of measuring accuracy sensitivity, which comprises at least body, measuring tube, choked flow piece, sensor and be connected and fixed part, it is characterized in that: there is thermal resistance material 2 at 1 upper port place at measuring tube, be connected with cover plate 5 on the thermal resistance material 2, strain transducer 7 one ends are fixed on cover plate 5 inside surfaces, and strain transducer 7 other end vertical fixing have choked flow piece 9; The connecting rod of choked flow piece 9 is enclosed within thermal resistance material 2 passages, and gapped with thermal resistance material 2 passages; The bottom of choked flow piece 9 is connected with choked flow face 12, and be suspended in measuring tube 1 tube chamber, be connected with spoiler 11 up and down respectively on the tube wall up and down in the tube chamber of measuring tube 1 upper port both sides correspondence, there is guide protrusions 10 on spoiler 11 tops, guide protrusions 10 bearing of trends on spoiler 11 tops are mutually corresponding and on same surface level up and down, the choked flow face 12 of choked flow piece 9 bottoms is last, the below, same plane that the guide protrusions 10 of following spoiler 11 constitutes, the spacing of the spacing of choked flow face 12 and last spoiler 11 guide protrusions 10 and following spoiler 11 guide protrusions 10 is identical simultaneously, makes choked flow piece 9 choked flow faces 12 edges respectively with last, the guide water channel cross-sectional area that following spoiler 11 guide protrusions 10 form is identical.
Described strain transducer 7 is strain pressure transducers.
Described choked flow piece 9 is connected with the arcwall face of choked flow face 12.
Be inlaid with seal I 3 between the end face of described measuring tube 1 opening and the thermal resistance material 2; Be inlaid with seal II 4 on thermal resistance material 2 and cover plate 5 junctions, thermal resistance material 2 end faces.
Be connected with strain transducer lead-in wire 6 on the described strain transducer 7, strain transducer lead-in wire 6 is drawn from cover plate 5 and 2 junctions, one side seal of thermal resistance material, or draws from cover plate 5, or draws from thermal resistance material 2 arbitrary ends.
Described cover plate 5 is a hollow cavity shape, tips upside down on the thermal resistance material 2; One end has set bolt 8 on cover plate 5 inside surface tops.
The present invention utilizes fluid mechanics principle and ess-strain principle, and strain principle of induction, when tube fluid is inner by measuring tube, direction of flow is by horizontal direction generation variation downward or upward, mobilization force acts on the horizontal choked flow panel of choked flow piece lower end, the cantilever end of choked flow piece interlock strain transducer, because sensor is equipped with strain pressure transducer, the size of power changes voltage signal into by sensor, by strain transducer lead-in wire output transducing signal, this signal carries out computing by single card microcomputer again through amplifying and the A/D conversion, metrical information is finished the data processing of stress-strain-flow velocity-voltage-flow, thereby realizes the metering of family with flow.
Characteristics of the present invention are: owing to adopted the inner special construction of strain sensing device and cantilevered construction parts and measuring tube, make that the measurement induction is sensitive, the precision height, in addition because there is not movable member, therefore measuring media there is not specific (special) requirements, simultaneously easy to use, be fit to the metering of family with flow.
Description of drawings
The invention will be further described below in conjunction with the embodiment accompanying drawing.
Fig. 1 is the structural representation of high-precision flow flowmeter embodiment.
Among the figure: 1, measuring tube; 2, thermal resistance material; 3, seal I; 4, seal II; 5, cover plate; 6, strain transducer lead-in wire; 7, strain transducer; 8, set bolt; 9, choked flow piece; 10, guide protrusions; 11, spoiler; 12, choked flow face.
Embodiment
As shown in Figure 1, a kind of flow sensing meter of measuring accuracy sensitivity, it mainly is made up of measuring tube 1, choked flow piece 9, strain transducer 7 and strain transducer lead-in wire 6 and thermal resistance material 2, cover plate 5, seal I 3, seal II 4, set bolt 8; Cavity tube wall one side at tubulose measuring tube 1 is provided with opening, is pressed with thermal resistance material 2 at opening part, and thermal resistance material 2 also extends to outer surface of tube wall one end, is inlaid with seal I 3 between the end face of opening and the thermal resistance material 2; Be connected with cover plate 5 on the thermal resistance material 2, cover plate 5 is a hollow cavity shape, tips upside down on the thermal resistance material 2; Fluted on cover plate 5 and thermal resistance material 2 junctions, thermal resistance material 2 end faces, seal II 4 is embedded in the groove, and strain transducer lead-in wire 6 is drawn from cover plate 5 and 2 junctions, one side seal of thermal resistance material; One end is fixed with set bolt 8 on cover plate 5 inside surface tops, and strain transducer 7 one ends are horizontally fixed between cover plate 5 and the thermal resistance material 2 by set bolt 8, and strain transducer 7 other end vertical fixing have choked flow piece 9; Choked flow piece 9 is an inverted T shape cylinder bar linkage structure, and the bottom of choked flow piece 9 has choked flow face 12 to be suspended in measuring tube 1 tube chamber, and choked flow piece 9 connecting rods are enclosed within thermal resistance material 2 passages, and gapped with thermal resistance material 2 passages; Be connected with spoiler 11 on the intraluminal upper tube wall of measuring tube 1 upper port, one side, measuring tube 1 upper port opposite side is corresponding intraluminal to be connected with down spoiler 11 on the tube wall down, there is guide protrusions 10 on spoiler 11 tops, guide protrusions 10 bearing of trends on spoiler 11 tops are corresponding mutually and on same surface level up and down in the tube chamber, the choked flow face 12 of choked flow piece 9 bottoms is last, the below, same plane that following spoiler 11 guide protrusions 10 constitute, simultaneously it is identical with the spacing of the spacing of last spoiler 11 guide protrusions 10 and following spoiler 11 guide protrusions 10, and the guide water channel cross-sectional area with spoiler guide protrusions 10 formation up and down is identical respectively to make choked flow piece 9 choked flow face edges.Choked flow piece 9 is connected with the arcwall face of choked flow face 12.The choked flow face 12 of the connecting rod position of choked flow piece 9 can be an arcwall face, also can be the plane, but arcwall face makes the induction of flow sensing meter sensitive.
Cover plate 5 and thermal resistance material 2 and measuring tube 1 carry out overall fixed.Strain transducer lead-in wire 6 can be drawn from cover plate 5 and 2 junctions, one side seal of thermal resistance material, or draws from cover plate 5, also can be to draw from thermal resistance material 2 arbitrary ends.
Strain gauge transducer 7 is strain pressure transducers, and built-in foil gauge is the beam type shape, and cantilever end is connected with choked flow piece 9, and stiff end is fixedlyed connected with cover plate 5.Connecting portion between seal I 3 and the seal II 4 sealing one-piece construction exposed parts, i.e. binding site between thermal resistance material 2 and measuring tube 1, the cover plate 5.
When tube fluid passes through measuring tube 1 inside, direction of flow is by horizontal direction generation variation downward or upward, mobilization force acts on horizontal choked flow face 12 panels of choked flow piece 9 lower ends, the cantilever end of choked flow piece 9 interlock strain transducers 7, because strain transducer 7 is strain pressure transducers, the size of power changes voltage signal into by strain transducer 7, by strain transducer lead-in wire 6 output transducing signals, this signal is through amplifying and the A/D conversion, carry out computing by single card microcomputer again, metrical information is finished the data processing of stress-strain-flow velocity-voltage-flow, thereby realizes the metering of family with flow.
This high-precision flow flowmeter of the present invention cooperates display device to use jointly, and its relative cost is lower, and the sensing accuracy height can satisfy the economy of family usefulness table metering and the requirement of practicality.
Claims (6)
1. the flow sensing meter of a measuring accuracy sensitivity, which comprises at least body, measuring tube, choked flow piece, sensor and be connected and fixed part, it is characterized in that: there is thermal resistance material (2) at the upper port place at measuring tube (1), be connected with cover plate (5) on the thermal resistance material (2), strain transducer (7) one ends are fixed on cover plate (5) inside surface, and strain transducer (7) other end vertical fixing has choked flow piece (9); The connecting rod of choked flow piece (9) is enclosed within thermal resistance material (2) passage, and gapped with thermal resistance material (2) passage; The bottom of choked flow piece (9) is connected with choked flow face (12), and be suspended in measuring tube (1) tube chamber, be connected with spoiler (11) up and down respectively on the tube wall up and down in the tube chamber of measuring tube (1) upper port both sides correspondence, there is guide protrusions (10) on spoiler (11) top, guide protrusions (10) bearing of trend on spoiler (11) top is mutually corresponding and on same surface level up and down, the choked flow face (12) of choked flow piece (9) bottom is last, the below, same plane that the guide protrusions (10) of following spoiler (11) constitutes, the spacing of the spacing of choked flow face (12) and last spoiler (11) guide protrusions (10) and following spoiler (11) guide protrusions (10) is identical simultaneously, and choked flow face (12) edge that makes choked flow piece (9) is respectively with last, the guide water channel cross-sectional area that following spoiler (11) guide protrusions (10) forms is identical.
2. the flow sensing meter of a kind of measuring accuracy sensitivity according to claim 1 is characterized in that: described strain transducer (7) is a strain pressure transducer.
3. the flow sensing meter of a kind of measuring accuracy sensitivity according to claim 1 is characterized in that: described choked flow piece (9) is connected with the arcwall face of choked flow face (12).
4. the flow sensing meter of a kind of measuring accuracy sensitivity according to claim 1 is characterized in that: be inlaid with seal I (3) between the end face of described measuring tube (1) opening and the thermal resistance material (2); Be inlaid with seal II (4) on thermal resistance material (2) and cover plate (5) junction, thermal resistance material (2) end face.
5. the flow sensing meter of a kind of measuring accuracy sensitivity according to claim 1, it is characterized in that: be connected with strain transducer lead-in wire (6) on the described strain transducer (7), strain transducer lead-in wire (6) is drawn from cover plate (5) and thermal resistance material (2) junction one side seal, or draw, or draw from the arbitrary end of thermal resistance material (2) from cover plate (5).
6. the flow sensing meter of a kind of measuring accuracy sensitivity according to claim 1 is characterized in that: described cover plate (5) is a hollow cavity shape, tips upside down on the thermal resistance material (2); One end has set bolt (8) on cover plate (5) inside surface top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710017239XA CN101226071A (en) | 2007-01-16 | 2007-01-16 | Ingenious flux induction meter for measurement precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710017239XA CN101226071A (en) | 2007-01-16 | 2007-01-16 | Ingenious flux induction meter for measurement precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101226071A true CN101226071A (en) | 2008-07-23 |
Family
ID=39858193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710017239XA Pending CN101226071A (en) | 2007-01-16 | 2007-01-16 | Ingenious flux induction meter for measurement precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101226071A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954306A (en) * | 2014-04-15 | 2014-07-30 | 无锡市星翼仪表科技有限公司 | Miniaturization high-precision micro-range sensor and flow meter |
| CN112729420A (en) * | 2020-12-29 | 2021-04-30 | 安徽省锐凌计量器制造有限公司 | Non-full pipe flowmeter and installation and use method thereof |
-
2007
- 2007-01-16 CN CNA200710017239XA patent/CN101226071A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954306A (en) * | 2014-04-15 | 2014-07-30 | 无锡市星翼仪表科技有限公司 | Miniaturization high-precision micro-range sensor and flow meter |
| CN103954306B (en) * | 2014-04-15 | 2016-03-23 | 无锡市星翼仪表科技有限公司 | Miniaturization high precision micro journey sensor and flowmeter |
| CN112729420A (en) * | 2020-12-29 | 2021-04-30 | 安徽省锐凌计量器制造有限公司 | Non-full pipe flowmeter and installation and use method thereof |
| CN112729420B (en) * | 2020-12-29 | 2022-06-07 | 安徽省锐凌计量器制造有限公司 | Non-full pipe flowmeter and installation and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080723 |