CN209027599U - A kind of redundant flow measuring device - Google Patents
A kind of redundant flow measuring device Download PDFInfo
- Publication number
- CN209027599U CN209027599U CN201822058656.5U CN201822058656U CN209027599U CN 209027599 U CN209027599 U CN 209027599U CN 201822058656 U CN201822058656 U CN 201822058656U CN 209027599 U CN209027599 U CN 209027599U
- Authority
- CN
- China
- Prior art keywords
- pressure
- venturi tube
- formula flowmeter
- measuring device
- differential pressure
- 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
- 238000012545 processing Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 29
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 210000000867 larynx Anatomy 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a kind of redundant flow measuring devices, belong to flow measurement technology field；Including Venturi tube, bar formula flowmeter, first differential pressure transmitter, second differential pressure transmitter, flow integrator, described bar of formula flowmeter at least partly protrudes into inside from the throat upper end of Venturi tube and is fixedly connected with Venturi tube, described bar of formula flowmeter is connect by pressure guiding pipe with the first differential pressure transmitter, the side of the throat of the Venturi tube is provided with low pressure pressure port, the side of the inlet cylinders section of the Venturi tube is provided with high pressure pressure port, the high pressure pressure port and low pressure pressure port pass through pressure guiding pipe and connect with the second differential pressure transmitter, first differential pressure transmitter and the second differential pressure transmitter are connect with flow integrator；Data on flows is mutually authenticated by flow integrator in related personnel, guarantees measurement accuracy and measurement stability.
Description
Technical field
The utility model relates to flow measurement technology field, in particular to a kind of redundant flow measuring device.
Background technique
Flowmeter is one of most important instrument in commercial measurement.With the development of industry, to the accuracy of flow measurement
Higher and higher with area requirement, in order to adapt to multiple use, various types of flowmeters are come out one after another, be widely used in petroleum,
The industries such as natural gas, petrochemical industry, water process, food and drink, pharmacy, the energy, metallurgy, paper pulp papermaking and construction material.
Fluid is in flow process, and under certain conditions, the kinetic energy and static energy of fluid can be converted mutually, and benefit
The flow of fluid can be measured with this transformational relation.Venturi tube is exactly to be developed according to kinetic energy and static energy transformational relation
A kind of flow measurement device of exploitation.When fluid flows through the throat of Venturi tube, flow velocity increases, and static pressure reduces, and then exists
Venturi tube larynx just produces pressure difference behind throat.Fluid flow is bigger, and the pressure difference of generation is bigger, can measure in this way according to pressure difference
The size of flow.
In the prior art, there are common Venturi tubes can only carry out single flow measurement, cannot be to flow measurement
As a result it is verified.
Utility model content
The purpose of this utility model is that: a kind of redundant flow measuring device is provided, solves common Venturi tube
The problem of can only carrying out single flow measurement, the result of flow measurement cannot being verified.
The technical solution adopted in the utility model is as follows:
A kind of redundant flow measuring device, including Venturi tube, bar formula flowmeter, the first differential pressure transmitter, the second differential pressure
Transmitter, flow integrator, described bar of formula flowmeter at least partly protrude into internal and venturi from the throat upper end of Venturi tube
Pipe is fixedly connected, and described bar of formula flowmeter is connect by pressure guiding pipe with the first differential pressure transmitter, the throat of the Venturi tube
Side is provided with low pressure pressure port, and the side of the inlet cylinders section of the Venturi tube is provided with high pressure pressure port, the high pressure
Pressure port and low pressure pressure port pass through pressure guiding pipe and connect with the second differential pressure transmitter, first differential pressure transmitter and second poor
Pressure transmitter is connect with flow integrator.
Further, the Venturi tube is using machining.
Further, the distance at described bar of formula flowmeter to the laryngeal entrance end of Venturi tube is greater than the larynx to Venturi tube
The distance of portion outlet end.
Further, the coarse processing of the front surface of described bar of formula flowmeter.
Further, the throat upper surface of described bar of formula flowmeter and Venturi tube is welded.
Further, the axial direction of the low pressure pressure port and high pressure pressure port is mutually hung down with described bar of the axial of formula flowmeter
Directly.
Further, control valve is provided on the pressure guiding pipe, the control valve is for controlling leading for pressure guiding pipe
Logical or truncation.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1. a kind of redundant flow measuring device of the utility model, bar formula flowmeter passes through pressure guiding pipe and the first differential pressure transmitter
The data on flows of acquisition is uploaded to flow accumulation by the data on flows of the interior fluid of connection acquisition pipeline, the first differential pressure transmitter
Instrument, high pressure pressure port and low pressure pressure port in Venturi tube, which are connect by pressure guiding pipe with the second differential pressure transmitter, to be acquired in pipeline
The data on flows of acquisition is uploaded to flow integrator by the data on flows of fluid, the second differential pressure transmitter, and flow integrator is used for
Flow rate calculation, flow compensating calculation, difference alarm etc., data on flows is mutually authenticated by flow integrator in related personnel, guarantees
Measurement accuracy and measurement stability；
2. a kind of redundant flow measuring device of the utility model, Venturi tube is avoided using welding using machining
Mode has an impact the pipeline of Venturi tube, to influence the precision of flow measurement；
3. a kind of redundant flow measuring device of the utility model, the laryngeal entrance end of bar formula flowmeter to Venturi tube away from
From being greater than to a distance from the throat outlet end of Venturi tube, a bar formula flowmeter is obtained under higher flow velocity bigger
Differential pressure improves flow measurement precision and measurement range；
4. a kind of redundant flow measuring device of the utility model carries out coarse processing by the surface to bar formula flowmeter,
Fluid draw power can be reduced, improve the measurement accuracy of bar formula flowmeter when fluid is in low flow velocity；
5. the throat upper end of a kind of redundant flow measuring device of the utility model, bar formula flowmeter and Venturi tube is welded,
No longer retain the mounting seat of bar formula flowmeter, and use pressure guiding pipe pressure, convenient for a bar formula flowmeter is installed to inner space
Inside narrow Venturi tube；
6. a kind of redundant flow measuring device of the utility model, by being arranged low pressure pressure sky and high pressure pressure port in text
The side of venturi, and guarantee that the axial direction of low pressure pressure sky and high pressure pressure port is mutually perpendicular to a bar axial direction for formula flowmeter, lead to
It crosses and carries out pressure by the way of single-point pressure, avoiding bar formula flowmeter from having an impact the flow field in pipeline causes to influence pressure
Effect；
7. a kind of redundant flow measuring device of the utility model controls the conducting of pressure guiding pipe by the control valve on pressure guiding pipe
And truncation, it is operated convenient for related personnel.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings, in which:
Fig. 1 is a kind of structural schematic diagram of redundant flow measuring device of the utility model；
Marked in the figure: 1- Venturi tube, 2- bars of formula flowmeter, the first differential pressure transmitter of 3-, the second differential pressure transmitter of 4-, 5-
Flow integrator, 6- pressure guiding pipe, 7- high pressure pressure port, 8- low pressure pressure port, 9- control valve.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model, i.e., the described embodiments are only a part of the embodiments of the utility model,
Instead of all the embodiments.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be with each
Different configurations is planted to arrange and design.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Reality based on the utility model
Apply example, those skilled in the art's every other embodiment obtained without making creative work belongs to
The range of the utility model protection.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
Embodiment
As shown in Figure 1, a kind of redundant flow measuring device, including Venturi tube 1, bar formula flowmeter 2, the first differential pressure transporting
Device 3, the second differential pressure transmitter 4, flow integrator 5, described bar of formula flowmeter 2 is at least partly from the throat upper end of Venturi tube 1
Inside is protruded into be fixedly connected with Venturi tube 1, described bar of formula flowmeter 2 is connect by pressure guiding pipe 6 with the first differential pressure transmitter 3,
The side of the throat of the Venturi tube 1 is provided with low pressure pressure port 8, and the side of the inlet cylinders section of the Venturi tube 1 is set
It is equipped with high pressure pressure port 7, the high pressure pressure port 7 and low pressure pressure port 8 are connected by pressure guiding pipe 6 and the second differential pressure transmitter 4
It connects, first differential pressure transmitter 3 and the second differential pressure transmitter 4 are connect with flow integrator 5.
Preferably, the Venturi tube 1 is using machining.Venturi tube 1 is machined to by the prior art
Type prevents from by the way of welding Venturi tube 1 being deformed, avoids in use process fluid from flowing through Venturi tube 1 and go out
The unstable situation in existing flow field influences flow measurement precision.
Preferably, the distance at described bar of formula flowmeter 2 to the laryngeal entrance end of Venturi tube 1 is greater than to Venturi tube 1
The distance of throat outlet end.Guarantee that bar formula flowmeter 2 can obtain bigger differential pressure under higher flow velocity, improves flow measurement
Precision and measurement range.
Preferably, the coarse processing of the front surface of described bar of formula flowmeter 2.It is carried out by the front surface to bar formula flowmeter 2
Coarse processing, so that the front surface of bar formula flowmeter 2 is uneven, wherein when the front surface of fluid and bar formula flowmeter 2 contacts
Reduce the tractive force of fluid, improves the measurement accuracy of bar formula flowmeter 2 when fluid is in low flow velocity.
Preferably, the axial direction of the low pressure pressure port 8 and high pressure pressure port 7 and the axial direction of described bar of formula flowmeter 2 are mutual
Vertically.Due to increasing a bar formula flowmeter 2 in the throat of Venturi tube 1, the sampling pressure effect of Venturi tube 1 is caused in order to prevent
It influences, therefore Venturi tube 1 is abandoned by the way of annular pressure, selection opens up one group of low pressure in the side of Venturi tube 1 and takes
Hole 8 and high pressure pressure port 7 are pressed, at this point, the axial direction of low pressure pressure port 8 and high pressure pressure port 7 and the axial direction of bar formula flowmeter 2 are mutually
The sampling pressure effect of Venturi tube 1 is influenced when vertical minimum.
Specifically, the throat upper surface of described bar of formula flowmeter 2 and Venturi tube 1 is welded.No longer retain bar formula flowmeter
Mounting seat, and use pressure guiding pipe pressure, convenient for a bar formula flowmeter is installed to inside the narrow Venturi tube in inner space.
In addition, being provided with control valve 9 on the pressure guiding pipe 6, the control valve 9 is for controlling in the present embodiment
The conducting or truncation of pressure guiding pipe 6.The conducting or truncation of pressure guiding pipe 6 are realized by operation control valve door 9 for user.
The utility model: the present apparatus is limited suitable for installation site, cannot install two groups of measuring devices simultaneously, and to flow
The required precision of measurement is higher, in the environment for needing to carry out flow measurement and flow verification.When carrying out flow measurement, Ke Yixuan
It selects while carrying out flow measurement or separately carry out flow measurement, preferably separately carry out flow measurement.It can first be opened when work
Control valve 9 corresponding with Venturi tube 1, starts the second differential pressure transmitter 4 and flow integrator 5, and the second differential pressure transmitter 4 is logical
The data on flows that the corresponding pressure guiding pipe 6 of Venturi tube 1 obtains acquisition fluids within pipes is crossed, flow integrator 5 is then communicated to.It needs
When verifying data on flows, the corresponding control valve 9 of Venturi tube 1 is closed, opens the corresponding control valve 9 of bar formula flowmeter 2,
Starting the first differential pressure transmitter 3, the first differential pressure transmitter 3 obtains the data on flows of fluids within pipes by corresponding pressure guiding pipe 6,
It is then communicated to flow integrator 5.Flow integrator 5 is used for flow rate calculation, flow compensating calculation, difference alarm etc..Relevant people
Data on flows is mutually authenticated by flow integrator 5 in member, guarantees measurement accuracy and measurement stability.
The above is only the preferred embodiment of the utility model only, the protection model being not intended to limit the utility model
It encloses, anyone skilled in the art any modification made within spirit of the present utility model and principle is equally replaced
It changes and improves, should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of redundant flow measuring device, it is characterised in that: including Venturi tube, bar formula flowmeter, the first differential pressure transmitter,
Second differential pressure transmitter, flow integrator, described bar of formula flowmeter at least partly protrude into inside from the throat upper end of Venturi tube
It is fixedly connected with Venturi tube, described bar of formula flowmeter is connect by pressure guiding pipe with the first differential pressure transmitter, the Venturi tube
The side of throat be provided with low pressure pressure port, the side of the inlet cylinders section of the Venturi tube is provided with high pressure pressure port,
The high pressure pressure port and low pressure pressure port pass through pressure guiding pipe and connect with the second differential pressure transmitter, first differential pressure transmitter
It is connect with flow integrator with the second differential pressure transmitter.
2. a kind of redundant flow measuring device according to claim 1, it is characterised in that: the Venturi tube is added using machine
Work molding.
3. a kind of redundant flow measuring device according to claim 1, it is characterised in that: described bar of formula flowmeter to literary mound
In pipe laryngeal entrance end distance be greater than to the throat outlet end of Venturi tube distance.
4. a kind of redundant flow measuring device according to claim 1, it is characterised in that: the preceding table of described bar of formula flowmeter
The coarse processing in face.
5. a kind of redundant flow measuring device according to claim 1, it is characterised in that: described bar of formula flowmeter and Wen Qiu
In pipe throat upper surface welding.
6. a kind of redundant flow measuring device according to claim 1, it is characterised in that: the low pressure pressure port and high pressure
The axial direction of pressure port and the axial direction of described bar of formula flowmeter are mutually perpendicular to.
7. a kind of redundant flow measuring device according to claim 1, it is characterised in that: be provided on the pressure guiding pipe
Control valve, the control valve are used to control the conducting or truncation of pressure guiding pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822058656.5U CN209027599U (en) | 2018-12-07 | 2018-12-07 | A kind of redundant flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822058656.5U CN209027599U (en) | 2018-12-07 | 2018-12-07 | A kind of redundant flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209027599U true CN209027599U (en) | 2019-06-25 |
Family
ID=66911460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822058656.5U Expired - Fee Related CN209027599U (en) | 2018-12-07 | 2018-12-07 | A kind of redundant flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209027599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444551A (en) * | 2023-12-25 | 2024-01-26 | 常州可威尔仪表制造有限公司 | Manufacturing process and measuring method of high-precision venturi flowmeter |
-
2018
- 2018-12-07 CN CN201822058656.5U patent/CN209027599U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444551A (en) * | 2023-12-25 | 2024-01-26 | 常州可威尔仪表制造有限公司 | Manufacturing process and measuring method of high-precision venturi flowmeter |
| CN117444551B (en) * | 2023-12-25 | 2024-03-12 | 常州可威尔仪表制造有限公司 | Manufacturing process and measuring method of high-precision venturi flowmeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3494278B1 (en) | Monitoring hydrocarbon fluid flow | |
| CN100425954C (en) | A differential pressure type flow measuring method and flow apparatus thereof | |
| CN107976222A (en) | A kind of Pitot tube integrated gas mass flow measurement methods | |
| CN202281632U (en) | Differential pressure type virtual flowmeter | |
| CN206269871U (en) | A kind of Pitot tube integrated gas mass flowmenter | |
| CN207113940U (en) | Throat's pressure Long Nozzle throttling arrangement | |
| CN202483554U (en) | Oil well produced-fluid optical fiber measuring system | |
| CN209027599U (en) | A kind of redundant flow measuring device | |
| CN105157762A (en) | Turbo type flow meter | |
| CN204788515U (en) | Curved elbow meter of S | |
| CN204085644U (en) | A kind of flow calibrating device | |
| CN109405899A (en) | A kind of redundant flow measuring device | |
| CN206709907U (en) | A kind of tube wall type differential pressure type vortex-shedding meter | |
| CN201152760Y (en) | Integrated intelligent inner cone type flow meter | |
| CN206315553U (en) | Device for detecting service life of filter element and water purifier | |
| CN203772325U (en) | Integral pore plate flowmeter | |
| CN204514403U (en) | A kind of differential pressure mass flowmeter for vortex street | |
| CN105781532B (en) | Leak source depth detection experimental device | |
| CN212482578U (en) | Porous float flowmeter | |
| CN203163793U (en) | Natural gas flow-meter | |
| CN207585729U (en) | A kind of heavy caliber fluid flowmeter on-line calibration device | |
| CN109141546A (en) | Tandem aerofoil profile differential pressure block cross-sectional flow meter, differential pressure measuring installation and measurement method | |
| CN207248254U (en) | A kind of apparatus for measuring air quantity | |
| CN204007732U (en) | A kind of online dismounting plug-in type Spindle Flowmeter | |
| CN111307227A (en) | Crescent pore plate gas-liquid two-phase flow measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |