CN2625856Y - High intensity uniform velocity tube flow sensor - Google Patents
High intensity uniform velocity tube flow sensor Download PDFInfo
- Publication number
- CN2625856Y CN2625856Y CN 03249613 CN03249613U CN2625856Y CN 2625856 Y CN2625856 Y CN 2625856Y CN 03249613 CN03249613 CN 03249613 CN 03249613 U CN03249613 U CN 03249613U CN 2625856 Y CN2625856 Y CN 2625856Y
- Authority
- CN
- China
- Prior art keywords
- test rod
- utility
- model
- phi
- increased
- 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
Links
Abstract
The utility model relates to a high intensity uniform velocity tube sensor, comprising a test rod 3, a three-valve group 1 or a one-time valve 2. The utility model is characterized in that the length and the width of the cross section of the test rod are in the range of 38*38-98*98 mm. The apertures of a complete pressure hole and a static pressure hole are in the range of phi 6 mm-phi 14 mm. The diameters of the positive and negative pressure connecting pipes in the pressure equalizing cavity of the test rod are in the range of phi 6-phi 14 mm. The utility model is characterized in that firstly, the intensity of the test rod is high and thus the utility model can be applied to the flow measurement of higher flow rate, bigger differential pressure, tube with bigger diameter and dirtier medium; secondly, with big differential pressure, after the cross-section of the test rod is enlarged, when the medium flows in the same tube, the value of the differential pressure is increased, and thus the utility model is also suitable to flow measurement of lower flow rate; thirdly, the clogging and maintenance are reduced, the reliability is increased and the failure rate is decreased; fourthly, the accuracy is higher. The accuracy is increased from stage 1 to above 0.5. Last, the flow-rate range is widened from 1: 10 to above 1: 20. The failure rate is decreased and the operating rate is increased.
Description
Technical field
The utility model relates to the even speed tube flow sensor, specifically is a kind of high strength even speed tube sensor.
Technical background
The cavity cross section of the test rod of even speed tube flow sensor of the prior art is of a size of 28 * 28mm, because sectional area is little, intensity is low, and in big caliber, high flow rate flow measurement, test rod easily bends, vibrates, splits off and can't use; In addition, when hanging down the flow velocity rate-of flow and measure, because of even speed tube flow sensor differential pressure value low (＜50Pa or＜100Pa), and the inconvenient draw of fluid-transporting tubing (construction inconvenience) or when not allowing the draw, this moment, even speed tube can not use.
The content of invention
Technical problem to be solved in the utility model is: provide that a kind of test rod cross sectional dimensions is big, intensity height, differential pressure are big, can reduce obstruction, can be used in the high strength even speed tube sensor of high and low fluid-velocity survey.
The technical solution adopted in the utility model is such: promptly a kind of high strength even speed tube sensor comprises test rod and three valve groups or a valve; It is characterized in that: it is that φ 6mm～φ 14mm, test rod all press positive negative pressure connecting pipe caliber in the chamber at φ 6～φ 14mm that the cross section length and width of test rod are of a size of 38 * 38～98 * 98mm, its pitot hole and baroport aperture.
High strength even speed tube flow sensor of the present utility model, owing to the increase in the cross section of test rod has following characteristics:
1. test rod intensity height.Can be applicable to higher flow velocity, bigger differential pressure, bigger caliber and the flow measurement of dirtier medium.
2. differential pressure is big.After the test rod xsect increased, when same pipeline drift diameter and flow, its differential pressure value increased, and therefore was applicable to the flow measurement of lower flow velocity.
3. reduce and stop up, reduce and safeguard, improve reliability, reduce failure rate.
4. precision is higher: brought up to more than 0.5 precision by 1 class precision.
5. widened the flow range degree: widened more than 1: 20 by 1: 10.
Description of drawings
Accompanying drawing 1,2 is the structural representation of two kinds of versions of the present utility model.
1-three valve groups, valve of 2-, 3-test rod, 4-baroport, 5-pitot hole, 6-all press chamber, the positive and negative pressure pipe of 7-in the accompanying drawing.
Embodiment
In the structure 2 that accompanying drawing provides, the cross section of test rod 3 increases to 60 * 60mm by 28 * 28mm of prior art; After the test rod xsect increases to 60 * 60mm by 28 * 28mm, its pitot hole 5 and baroport 4 apertures, and test rod all presses positive negative pressure connecting pipe 7 calibers in the chamber 6 at φ 6～φ 14mm.Circulation area is then by 12.5664mm
2Increase to 78.54mm
2, 6.25 times of enlarged areas.
Claims (1)
1, a kind of high strength even speed tube sensor comprises test rod (3) and three valve groups (1) or a valve (2); It is characterized in that: it is that φ 6 mm～φ 14mm, test rod all press positive negative pressure connecting pipe caliber (7) in the chamber (6) at φ 6～φ 14mm that the cross section length and width of test rod are of a size of 38 * 38～98 * 98mm, its pitot hole (5) and baroport (4) aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249613 CN2625856Y (en) | 2003-07-18 | 2003-07-18 | High intensity uniform velocity tube flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249613 CN2625856Y (en) | 2003-07-18 | 2003-07-18 | High intensity uniform velocity tube flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625856Y true CN2625856Y (en) | 2004-07-14 |
Family
ID=34252719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03249613 Expired - Fee Related CN2625856Y (en) | 2003-07-18 | 2003-07-18 | High intensity uniform velocity tube flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625856Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207764A (en) * | 2019-06-27 | 2019-09-06 | 北京强度环境研究所 | A kind of adaptive differential pressure flowmeter of angle |
-
2003
- 2003-07-18 CN CN 03249613 patent/CN2625856Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207764A (en) * | 2019-06-27 | 2019-09-06 | 北京强度环境研究所 | A kind of adaptive differential pressure flowmeter of angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHONGQING TUOZHAN AUTOMATION INSTRUMENT CO., LTD. Assignor: Xiang Jiacong Contract record no.: 2011500000058 Denomination of utility model: High intensity uniform velocity tube flow sensor Granted publication date: 20040714 License type: Exclusive License Record date: 20110914 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040714 Termination date: 20120718 |