CN2639857Y - Wide range flow control device - Google Patents
Wide range flow control device Download PDFInfo
- Publication number
- CN2639857Y CN2639857Y CN 03210125 CN03210125U CN2639857Y CN 2639857 Y CN2639857 Y CN 2639857Y CN 03210125 CN03210125 CN 03210125 CN 03210125 U CN03210125 U CN 03210125U CN 2639857 Y CN2639857 Y CN 2639857Y
- Authority
- CN
- China
- Prior art keywords
- flow meter
- pipe
- auxiliary
- main
- auxilliary
- 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
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a wide range flow control device, which comprises a control valve, a flow meter and a pipe, and is characterized in that: the lower end of the inlet header is connected in parallel with a main pipe, which is provided with a main flow meter and a main control valve, and an auxiliary pipe. The control output end of the main flow meter is connected with the main control valve. The auxiliary pipe is provided with an auxiliary flow meter and an auxiliary control valve. The control output end of the auxiliary flow meter is connected with the auxiliary control valve. The main flow meter is connected with the auxiliary flow meter by a communication control lead, and the lower ends of the main pipe and the auxiliary pipe are connected in parallel with the outlet header. The utility model, by which the technical difficulty of the flow metering field that the small flow in a large caliber pipe is not measured or inaccurately measured is solved, has the advantages of wide flow range, promoted measuring accuracy, high automatic degree, compact conformation and convenient installation and maintenance.
Description
Technical field
The utility model relates to a kind of volume control device, particularly a kind of wide-range volume control device.
Background technology
In the flow metering field; run into the fluid that needs metering through regular meeting and have in a big way fluctuations in discharge; when giving a residential quarter air feed; at noon; usefulness gas peak period and other low-valley intervals in night; all need to be measured accurately; yet present flow instrument is because technology limitation such as sensors; can't reach the range ability of broad; therefore; the occasion that the range ability of broad is arranged at ask for something; if use vortex shedding flow meter; the precession vortex flowmeter; turbo flow meter; orifice flowmeter etc.; then can't satisfy the needs of range, if the flowmeter of wide ranges such as use Roots type flowmeter, because medium; the reason of service conditions such as pressure can not satisfy application; even satisfy the large capacity meter amount, but the inaccurate even non-metering problem of metering can appear when low discharge.
Summary of the invention
The purpose of this utility model has provided a kind of wide-range volume control device, by the flowmeter of employing different flow scope and the interlocked control and the combination of valve, solved flowmeter has the applications of the range ability of broad to exist at ask for something the inaccurate even non-metering difficult problem of low discharge metering, as the flowmeter of two different bores that are similarly tens times of ranges by interlocked control and combination, can reach hundreds of times even thousands of times of range ratios, improve range ability greatly, thereby also improved the accuracy of metering.The utility model designs a kind of wide-range volume control device, comprise operation valve, flowmeter, pipeline, it is characterized in that: enter the header lower end and be connected to be responsible for and auxilliary pipe, the person in charge is provided with main flow meter and main control valve, the control output end of main flow meter links to each other with main control valve, auxilliary pipe is provided with auxilliary flowmeter and auxilliary operation valve, the control output end of auxilliary flowmeter links to each other with auxilliary operation valve, be connected with the Control on Communication lead between main flow meter and auxilliary flowmeter, be responsible for and the lower end of auxilliary pipe is connected to out header.The utility model has the advantages that flow range is wide, the automaticity height, compact conformation, convenient for installation and maintenance.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing is a structural representation of the present utility model,
Embodiment,
Claims (1)
1, a kind of wide-range volume control device, comprise operation valve, flowmeter, pipeline, it is characterized in that: enter the header lower end and be connected to be responsible for and auxilliary pipe, the person in charge is provided with main flow meter and main control valve, the control output end of main flow meter links to each other with main control valve, and auxilliary pipe is provided with auxilliary flowmeter and auxilliary operation valve, and the control output end of auxilliary flowmeter links to each other with auxilliary operation valve, be connected with the Control on Communication lead between main flow meter and auxilliary flowmeter, be responsible for and the lower end of auxilliary pipe is connected to out header.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03210125 CN2639857Y (en) | 2003-08-28 | 2003-08-28 | Wide range flow control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03210125 CN2639857Y (en) | 2003-08-28 | 2003-08-28 | Wide range flow control device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2639857Y true CN2639857Y (en) | 2004-09-08 |
Family
ID=34289260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 03210125 Expired - Fee Related CN2639857Y (en) | 2003-08-28 | 2003-08-28 | Wide range flow control device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2639857Y (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105547378A (en) * | 2016-02-28 | 2016-05-04 | 山东省水利科学研究院 | Agricultural irrigation water meter capable of preventing sediment blockage and weed winding |
CN105973307A (en) * | 2016-06-22 | 2016-09-28 | 中国农业科学院农业资源与农业区划研究所 | Polder farmland non-point source pollution main water process monitoring device and method |
CN110318720A (en) * | 2019-07-19 | 2019-10-11 | 西安思坦仪器股份有限公司 | A kind of wide range orifice flowmeter injection well downhole flow regulator |
US10863667B2 (en) | 2015-09-28 | 2020-12-15 | Precision Planting Llc | Systems and devices for controlling and monitoring liquid applications of agricultural fields |
-
2003
- 2003-08-28 CN CN 03210125 patent/CN2639857Y/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10863667B2 (en) | 2015-09-28 | 2020-12-15 | Precision Planting Llc | Systems and devices for controlling and monitoring liquid applications of agricultural fields |
US11337366B2 (en) | 2015-09-28 | 2022-05-24 | Precision Planting Llc | Systems and devices for controlling and monitoring liquid applications of agricultural fields |
US11350562B2 (en) | 2015-09-28 | 2022-06-07 | Precision Planting Llc | Systems and devices for controlling and monitoring liquid applications of agricultural fields |
CN105547378A (en) * | 2016-02-28 | 2016-05-04 | 山东省水利科学研究院 | Agricultural irrigation water meter capable of preventing sediment blockage and weed winding |
CN105973307A (en) * | 2016-06-22 | 2016-09-28 | 中国农业科学院农业资源与农业区划研究所 | Polder farmland non-point source pollution main water process monitoring device and method |
CN110318720A (en) * | 2019-07-19 | 2019-10-11 | 西安思坦仪器股份有限公司 | A kind of wide range orifice flowmeter injection well downhole flow regulator |
CN110318720B (en) * | 2019-07-19 | 2024-04-30 | 西安思坦仪器股份有限公司 | Water distributor of wide-range orifice plate flowmeter |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101126652B (en) | Electronic gas meter for mass and flow | |
CN2639857Y (en) | Wide range flow control device | |
CN201188012Y (en) | Laminar flowmeter for measuring instantaneous flow of engine | |
CN211824578U (en) | Gas ultrasonic flowmeter without straight pipe section wide range | |
CN210289739U (en) | Oil field oil recovery well head liquid production volume metering device | |
CN202734883U (en) | Oval gear flowmeter | |
CN2639858Y (en) | Device capable of expanding metering range of flow meter | |
CN1425901A (en) | Integrated intelligent cavity flow meter | |
CN104236644A (en) | Novel water meter with middle-through-hole movable throttling element | |
CN208488130U (en) | A kind of apparatus for measuring air quantity | |
CN209495738U (en) | A kind of natural gas swirl flowmeter | |
CN203376000U (en) | Differential pressure type uniform-velocity flow sensor | |
CN210948639U (en) | Multiphase flow metering skid-mounted device | |
CN205843733U (en) | A kind of fluid measurement instrument | |
CN201021897Y (en) | Compound water-saving water meter | |
CN205903727U (en) | Filter with rectifier | |
CN201229189Y (en) | Inserted ASME nozzle flow meter | |
CN215767224U (en) | Gas-liquid two-phase flow metering device | |
CN2593158Y (en) | Cavity flow sensor | |
CN108645459A (en) | A kind of apparatus for measuring air quantity | |
CN2702281Y (en) | Double pipe type gas flow meter | |
CN203657856U (en) | Insertion-type ultrasonic flow transducer | |
CN220018624U (en) | Jet flow water meter | |
CN220230591U (en) | Orifice flowmeter | |
CN220436246U (en) | Gas high-flow emergency device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |