GB1343576A - Differential pressure fluid flow metering device - Google Patents
Differential pressure fluid flow metering deviceInfo
- Publication number
- GB1343576A GB1343576A GB2164572A GB2164572A GB1343576A GB 1343576 A GB1343576 A GB 1343576A GB 2164572 A GB2164572 A GB 2164572A GB 2164572 A GB2164572 A GB 2164572A GB 1343576 A GB1343576 A GB 1343576A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- throat
- inlet
- fluid flow
- cross
- 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
Links
- 239000012530 fluid Substances 0.000 title abstract 3
- 230000004323 axial length Effects 0.000 abstract 3
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
- G01F1/34—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 measuring pressure or differential pressure
- G01F1/36—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/40—Details of construction of the flow constriction devices
- G01F1/44—Venturi tubes
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
1343576 Measuring fluid flow GENERAL SIGNAL CORP 9 May 1972 [19 May 1971] 21645/72 Heading G1R A differential pressure fluid flow meter for inclusion in polygonal section ducts comprises a tube of corresponding cross-section (preferably rectangular or square), the tube having an inlet section 16, a smaller throat section 17 and a converging section 18 defined by at least one pair of opposed, planar, converging walls, pressure taps 21, 22 being located in the inlet and the throat sections, the axial length (a) of the converging section being between 2À78#A I (1-B) and 1À1 (2À78#A I (1-B)), where A I is the inlet section cross-sectional area and B is the ratio of the square roots of the cross-sectional areas of the throat and inlet sections. A diffuser section 19 is preferably included downstream of the throat section and of an axial length (f) 8À6 (#A I - #A T ) where AT is the throat section cross-sectional area. The axial length (b + c) of the throat section is 1-2B #A T , the throat tap 22 being located in the centre of a wall defining the section. The tap 21 is axially spaced from the inlet/ throat junction by a minimum distance (e) of 0À28 #A I and from the tube entrance by a distance (d) of at least 12in.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14489971A | 1971-05-19 | 1971-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1343576A true GB1343576A (en) | 1974-01-10 |
Family
ID=22510642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2164572A Expired GB1343576A (en) | 1971-05-19 | 1972-05-09 | Differential pressure fluid flow metering device |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA961668A (en) |
| GB (1) | GB1343576A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0113706A1 (en) * | 1983-01-07 | 1984-07-18 | Carrier Corporation | Venturi flow measuring device and method |
| GB2399023A (en) * | 2003-03-06 | 2004-09-08 | Intersurgical Ltd | Venturi device with exit orifice of reduced size and elongate cross-section |
| CN105043466A (en) * | 2015-08-12 | 2015-11-11 | 银川融神威自动化仪表厂(有限公司) | High-online diffusing pipe double rectangular flowmeter |
| CN106482794A (en) * | 2016-10-28 | 2017-03-08 | 东风商用车有限公司 | Venturi tube flowmeter of EGR (exhaust gas recirculation) engine |
| CN108106679A (en) * | 2017-12-08 | 2018-06-01 | 重庆大唐国际石柱发电有限责任公司 | A kind of measuring method and system of power station coal pulverizer inlet air quantity |
| CN114113663A (en) * | 2021-11-24 | 2022-03-01 | 上海航天设备制造总厂有限公司 | Detection device for flow velocity measurement and flow field monitoring |
-
1972
- 1972-04-28 CA CA140,859A patent/CA961668A/en not_active Expired
- 1972-05-09 GB GB2164572A patent/GB1343576A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0113706A1 (en) * | 1983-01-07 | 1984-07-18 | Carrier Corporation | Venturi flow measuring device and method |
| GB2399023A (en) * | 2003-03-06 | 2004-09-08 | Intersurgical Ltd | Venturi device with exit orifice of reduced size and elongate cross-section |
| GB2399023B (en) * | 2003-03-06 | 2006-04-12 | Intersurgical Ltd | Improvements relating to venturi devices |
| CN105043466A (en) * | 2015-08-12 | 2015-11-11 | 银川融神威自动化仪表厂(有限公司) | High-online diffusing pipe double rectangular flowmeter |
| CN106482794A (en) * | 2016-10-28 | 2017-03-08 | 东风商用车有限公司 | Venturi tube flowmeter of EGR (exhaust gas recirculation) engine |
| CN106482794B (en) * | 2016-10-28 | 2023-10-24 | 东风商用车有限公司 | Venturi flowmeter of EGR engine |
| CN108106679A (en) * | 2017-12-08 | 2018-06-01 | 重庆大唐国际石柱发电有限责任公司 | A kind of measuring method and system of power station coal pulverizer inlet air quantity |
| CN114113663A (en) * | 2021-11-24 | 2022-03-01 | 上海航天设备制造总厂有限公司 | Detection device for flow velocity measurement and flow field monitoring |
Also Published As
| Publication number | Publication date |
|---|---|
| CA961668A (en) | 1975-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |