CN205537783U - V bores target flowmeter - Google Patents
V bores target flowmeter Download PDFInfo
- Publication number
- CN205537783U CN205537783U CN201620273215.5U CN201620273215U CN205537783U CN 205537783 U CN205537783 U CN 205537783U CN 201620273215 U CN201620273215 U CN 201620273215U CN 205537783 U CN205537783 U CN 205537783U
- Authority
- CN
- China
- Prior art keywords
- force cell
- flowmeter
- fastening bolt
- dowel steel
- restricting element
- 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
Landscapes
- Measuring Volume Flow (AREA)
Abstract
V bores target flowmeter, electronic circuit as follows mainly, force cell sensor, the dowel steel, the circular shell of flowmeter, fastening bolt, its characterized in that: be fixed with V awl throttling element through fastening bolt on force cell sensor's dowel steel to make V awl throttling element and the same axle center of the circular shell of flowmeter. Required straight tube section is short, and loss of pressure is little, and noise differential pressure greatly reduced, range be than wide, good reproducibility, characteristics such as system's degree of accuracy height.
Description
Technical field
The invention belongs to the measurement instrument of flow measurement in instrument and meter for automation, metering, relate to a kind of V and bore target type meter.
Background technology
Existing target type meter (see figure 1), in measuring tubular outer shell 5, vertical pipe centrage places rondelle spoiler (target sheet) 4, is fixed on the dowel steel 3 of force cell 2 with bolt 6, constituting plane target-type flow sensor, force cell 2 is connected with electronic circuit 1.Target sheet 4 experiences the impulse force of fluid, and this power is converted to millivolt level voltage signal and is sent to pick-up output after electronic circuit 1 processing and amplifying by force cell 2, collectively forms plane target type meter.Its advantage: simple and compact for structure without continuous moving mechanical part, results from detection, power by the part throttle of split type throttle differential flowmeter, differential pressure and the differential pressure that are made up of restricting element, differential pressure transmitter, connection conduit and adnexa/Electricity conversion, the output of signal processing and amplifying pick-up synchronously complete, and possess performance and the requirement of integrated throttle-type differential pressure flowmeter completely, are the developing direction of throttle differential flowmeter.But plane target type meter also has its shortcoming and defect: effusion meter, by the many factors of correction factor correction, affects the properties of instrument；The defects such as target sheet uses two-dimension plane structure, and it is longer that differential pressure signal noise is relatively big, fluid recovers required straight length, range ratio little (4:1).
Summary of the invention
It is an object of the invention to solve the problem that prior art is stuck at upper mesh, it is provided that a kind of V bores target type meter, has required straight length short, and the pressure loss is little, range ratio width, reproducible, system accuracies etc..
The technical scheme is that V bores target type meter, mainly there is electronic circuit 2-1, force cell 2-2, dowel steel 2-3, effusion meter circular housing 2-5, fastening bolt 2-6, it is characterised in that: on the dowel steel 2-3 of force cell 2-2, it is fixed with V by fastening bolt 2-6 bores restricting element 2-4, and make V cone restricting element 2-4 and effusion meter circular housing 2-5 concentric.
The present invention compared with prior art has substantive distinguishing features and a remarkable result:
1) V cone restricting element fastening bolt is fixed on the dowel steel of force cell, constitutes V with effusion meter circular housing concentric and bores target-type flow sensor;After force cell stress, institute's stress is converted in proportion mV magnitude voltage signals and sends into electronic circuit, through amplifying calculation process, pick-up output 4～20mA standard current signals, constitute V and bore target type meter.Change more maximum compared with product target type meter is that the V that the flat target sheet of two dimension upgrades to 3 D stereo bores restricting element.
2) by real fail to be sold at auction fixed after determine, on V cone restricting element fixing force transfer bar, concentric with pipeline constitute V prick flow transducer.Measure bore D;Fluid in sufficiently long pipeline is referred to as fully developed flow, on pipeline cross section, the rate of flow of fluid of any one each point diametrically is unequal: press close to the fluid at tube wall because of the existence of pipe friction power, flow velocity is almost 0, and the rate of flow of fluid of pipeline center is maximum.When fluid flows through V cone restricting element, rate of flow of fluid at pipeline center is forced the most slack-off, and surround V cone restricting element flow through, rate of flow of fluid at tube wall is then gradually increased, so that each point flow velocity is homogenized in pipeline, make the differential pressure value before and after V cone restricting element under fluid slow flow state, also can meet the needs measuring flow.Rate of flow of fluid forms differential pressure after being homogenized before and after V cone restricting element, the noise differential pressure that the whirlpool higher including signal differential pressure and frequency, amplitude is the lowest produces, it is substantially reduced because fluid homogenizes, thus improve signal to noise ratio, make effusion meter Lower Range extend to zero point a lot, be greatly improved range ratio.
3) straight length is short needed for the present invention in sum, and the pressure loss is little, and noise differential pressure is substantially reduced, and range ratio width is reproducible, system accuracies high.
Accompanying drawing explanation
Fig. 1 is target type meter structural representation.
In figure, 1, electronic circuit, 2, force cell, 3, dynamometer link, 4, target sheet, 5, measure tubular outer shell, 6, bolt.
Fig. 2 is that V of the present invention bores target type meter structural representation.
In figure, 2-1, electronic circuit, 2-2, force cell, 2-3, dynamometer link, 2-4, V bore restricting element .2-5, effusion meter circular housing, 2-6, fastening bolt.
Detailed description of the invention
Now pass through human body embodiment and combine accompanying drawing, the present invention is described as follows:
See Fig. 2, V bores target type meter, mainly there is electronic circuit 2-1, force cell 2-2, dowel steel 2-3, effusion meter circular housing 2-5, fastening bolt 2-6, it is characterized in that: on the dowel steel 2-3 of force cell 2-2, be fixed with V by fastening bolt 2-6 bore restricting element 4, and make V cone restricting element 4 and effusion meter circular housing 5 concentric.
Claims (1)
1.V bores target type meter, mainly has electronic circuit, force cell, dowel steel, effusion meter circular housing, fastening bolt, it is characterized in that: on the dowel steel of force cell, be fixed with V by fastening bolt bore restricting element, and make V cone restricting element and effusion meter circular housing concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620273215.5U CN205537783U (en) | 2016-04-06 | 2016-04-06 | V bores target flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620273215.5U CN205537783U (en) | 2016-04-06 | 2016-04-06 | V bores target flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205537783U true CN205537783U (en) | 2016-08-31 |
Family
ID=57140564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620273215.5U Expired - Fee Related CN205537783U (en) | 2016-04-06 | 2016-04-06 | V bores target flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205537783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186689A (en) * | 2018-08-29 | 2019-01-11 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of target type meter |
-
2016
- 2016-04-06 CN CN201620273215.5U patent/CN205537783U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186689A (en) * | 2018-08-29 | 2019-01-11 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of target type meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101788313B (en) | High-frequency response fluid transient flow meter | |
| CN104501889B (en) | Detection method based on cross-correlation Time-difference Ultrasonic Flow | |
| CN103995048A (en) | Steel wire rope magnetic memory on-line detection device | |
| CN204539472U (en) | A kind of microphones sensitivity measure system of method based on the comparison | |
| CN112212926B (en) | Flow measurement method based on porous throttling and MEMS pressure sensor | |
| CN108931270B (en) | Two-phase flow parameter detection method based on porous throttling and acoustic emission technology | |
| CN107860430A (en) | A kind of ultrasonic gas flowmeter measurement method for time difference based on time difference method | |
| CN201247251Y (en) | Measurement gauge for pipe gas flow rate and sonic velocity | |
| CN205537783U (en) | V bores target flowmeter | |
| CN1936506A (en) | Small section branch-flow measuring method for large-diameter gas flow and apparatus thereof | |
| CN102944271A (en) | Composite internal and external venturi tube flowmeter | |
| CN102914589B (en) | Method for detecting methane concentration by ultrasonic waves | |
| CN115031792A (en) | Monolithic integrated MEMS differential pressure flowmeter and preparation method thereof | |
| CN202255473U (en) | Intelligent quake-proof vortex precession flow meter | |
| CN101118168A (en) | Throttling set and flow quantity detecting system with same | |
| CN104776791A (en) | Displacement sensor and displacement measuring method | |
| CN202522583U (en) | Resistance strain transducer type device for detecting current speed in pipeline | |
| CN208383199U (en) | A kind of bigbore flowmeter | |
| CN105973317A (en) | Bidirectional metering vortex shedding flowmeter | |
| CN102865895A (en) | Venturi flow sensor | |
| CN105509871A (en) | Self-calibration device and method applied to vibration sensor | |
| CN102866031A (en) | Method for testing response relation of load position and bridge | |
| CN206321395U (en) | A kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology | |
| CN102109334B (en) | Absolute displacement measuring device | |
| CN202582616U (en) | Integrated intelligent Verabar flow meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |