CN206488822U - Suitable for the electromagnetic flowmeter of low flow velocity - Google Patents
Suitable for the electromagnetic flowmeter of low flow velocity Download PDFInfo
- Publication number
- CN206488822U CN206488822U CN201621161380.8U CN201621161380U CN206488822U CN 206488822 U CN206488822 U CN 206488822U CN 201621161380 U CN201621161380 U CN 201621161380U CN 206488822 U CN206488822 U CN 206488822U
- Authority
- CN
- China
- Prior art keywords
- pipe
- measurement
- electromagnetic flowmeter
- conduit
- internal lining
- 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.)
- Active
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a kind of electromagnetic flowmeter suitable for low flow velocity, this electromagnetic flowmeter includes measurement conduit, internal lining pipe, magnet exciting coil, electrode and terminal box, the measurement conduit is straight tube, the internal lining pipe is reducer pipe and is located at the measurement pipe inner wall, the magnet exciting coil is located at the liner pipe outer wall and between the measurement conduit and internal lining pipe, the electrode is fixed on measurement duct wall along caliber direction and electrode tip is flushed with liner pipe internal surface, and the terminal box is set up in the outer wall of the measurement conduit by branch.This electromagnetic flowmeter overcomes the defect of traditional electromagnetic flowmeter structure, greatly reduces the production cost produced due to reducing and technology difficulty, enhances the magnetic field intensity in measurement conduit, improves the accuracy and precision of metering.
Description
Technical field
The utility model is related to a kind of electromagnetic flowmeter suitable for low flow velocity.
Background technology
Electromagnetic flowmeter is to apply electromagnetic induction principle, the electromotive force sensed during according to conductor fluid by externally-applied magnetic field
To measure a kind of instrument of conductor fluid flow, as shown in figure 1, electromagnetic flowmeter is main by measurement conduit 1, internal lining pipe 2, excitation
Coil 3, electrode 4 and terminal box 5 are constituted, according to the measuring principle of electromagnetic flowmeter, and measurement conduit 1 is that non-magnetic alloy is short
Pipe, internal lining pipe 2 is insulating materials and is located at the measurement inwall of conduit 1, and electrode 4 is fixed on the measurement tube wall of conduit 1 along caliber direction
And electrode tip is flushed with the inner surface of internal lining pipe 2, magnet exciting coil 3 by housing 6 located at measurement the outer wall of conduit 1, and with measurement
The axis of conduit 1 produces an operating fields on vertical direction, now, if the fluid with certain electrical conductivity flows through measurement conduit
1, cutting magnetic line is induced into electromotive force, electromotive force is that flow signal is detected by electrode 4 and is sent to terminal box 5, terminal box 5
The signal that electrode 4 is detected is sent to follow-up converter via signal wire, and converter is laggard by flow signal enhanced processing
Row flow measurement.Wherein internal lining pipe 2 directly contacts fluid to be measured, and the corrosion resistance of increase measurement conduit 1 prevents induced potential quilt
Metal measurement conduit 1 tube wall short circuit, the material of internal lining pipe 2 is mostly neoprene, polytetrafluoroethylplastic plastic or ceramics etc..
The electromagnetic flowmeter has deficiency all the time when measuring low flow velocity fluid, because in the case of low flow velocity, measurement
Rate of flow of fluid in conduit is too low, causes the electromotive force of sensing extremely faint, it is easy to by small vibrations and other are mixed and disorderly
The interference of signal, has a strong impact on the accuracy and precision of metering.In order to overcome the defect, the variable of low flow velocity is obtained, often
Using contract measurement conduit caliber, to improve the flow velocity that detected fluid flows through measurement conduit.To reach the purpose, as shown in Fig. 2
The electromagnetic flowmeter mostly applied to low flow velocity measures conduit 1 and reducing internal lining pipe 2 using reducing at present, in this way, carrying significantly
The production cost and technology difficulty of high electromagnetic flowmeter.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of electromagnetic flowmeter suitable for low flow velocity, this electromagnetism
Flowmeter overcomes the defect of traditional electromagnetic flowmeter structure, greatly reduces the production cost produced due to reducing and technique hardly possible
Degree, enhances the magnetic field intensity in measurement conduit, improves the accuracy and precision of metering.
In order to solve the above technical problems, the electromagnetic flowmeter that the utility model is applied to low flow velocity includes measurement conduit, interior
Bushing pipe, magnet exciting coil, electrode and terminal box, the measurement conduit are straight tube, and the internal lining pipe is reducer pipe and is located at described
Pipe inner wall is measured, the magnet exciting coil is measured conduit and internal lining pipe between located at the liner pipe outer wall and positioned at described,
The electrode is fixed on measurement duct wall along caliber direction and electrode tip is flushed with liner pipe internal surface, and the terminal box is led to
Cross the outer wall that branch is set up in the measurement conduit.
Further, the reducer pipe is tapered increaser, and its stage casing caliber is less than leading portion and back segment caliber, and reducing angle is
5~15°。
Further, the measurement conduit is common irony or carbon steel conduit, the rubber tube that the internal lining pipe is made for molding.
Further, the rubber tube is neoprene molded rubber pipe or butyronitrile molded rubber pipe.
Because the electromagnetic flowmeter that the utility model is applied to low flow velocity employs above-mentioned technical proposal, i.e. this Electromagnetic Flow
Meter includes measurement conduit, internal lining pipe, magnet exciting coil, electrode and terminal box, and the measurement conduit is straight tube, and the internal lining pipe is change
Footpath is managed and located at the measurement pipe inner wall, and the magnet exciting coil is led located at the liner pipe outer wall and positioned at the measurement
Between pipe and internal lining pipe, the electrode is fixed on measurement duct wall along caliber direction and electrode tip and liner pipe internal surface are neat
Flat, the terminal box is set up in the outer wall of the measurement conduit by branch.This electromagnetic flowmeter overcomes traditional electromagnetic flowmeter
The defect of structure, greatly reduces the production cost produced due to reducing and technology difficulty, enhances the magnetic field in measurement conduit
Intensity, improves the accuracy and precision of metering.
Brief description of the drawings
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1 tradition electromagnetic flowmeter structural representations；
Fig. 2 is the electromagnetic flowmeter structural representation that conduit and internal lining pipe are measured using reducing；
Fig. 3 is the electromagnetic flowmeter structural representation that the utility model is applied to low flow velocity.
Embodiment
Embodiment is as shown in figure 3, the electromagnetic flowmeter that the utility model is applied to low flow velocity includes measurement conduit 1, liner
Pipe 2, magnet exciting coil 3, electrode 4 and terminal box 5, the measurement conduit 1 are straight tube, and the internal lining pipe 2 is reducer pipe and is located at
The measurement inwall of conduit 1, the magnet exciting coil 3 is located at the outer wall of internal lining pipe 2 and positioned at the measurement conduit 1 and liner
Between pipe 2, the electrode 4 is fixed on the measurement tube wall of conduit 1 along caliber direction and electrode tip is flushed with the inner surface of internal lining pipe 2,
The terminal box 5 is by support 7 located at the outer wall for measuring conduit 1.
It is preferred that, the reducer pipe is tapered increaser, and its stage casing caliber is less than leading portion and back segment caliber, reducing angle, θ
For 5 ~ 15 °.Raising flow velocity can not be pursued simply and variable diameter angle is spent greatly, and the variable diameter angle of reducer pipe, which spends conference, to be caused in pipeline
The increase of local crushing, detected fluid can produce vortex, whirlpool etc. flowing through, change the velocity flow profile of fluid at reducing
Become, and then influence the measurement accuracy and repeatability of flowmeter；To ensure the stability of fluidised form, the reducing angle of reducer pipe needs control
At≤15 °, so that speed-raising demand of the different bore flowmeters to detected fluid can be met, also will not be because of crushing, whirlpool etc.
Influence the accurate metering of flowmeter.
It is preferred that, the measurement conduit 1 is common irony or carbon steel conduit, the rubber that the internal lining pipe 2 is made for molding
Pipe.Because measurement conduit uses common irony or carbon steel conduit, it is already possible to let out in the magnetic field that effective isolation magnet exciting coil is produced
Leakage, thus terminal box can be set up in using ordinary stent measurement conduit on, it is possible to reduce traditional electromagnetic flowmeter shell add
Work link, traditional electromagnetic flowmeter shell is used to wrap up magnet exciting coil, it is to avoid leakage field, magnetic strength is improved, so as to further simplify
The manufacturing process of electromagnetic flowmeter, reduces production cost.
It is preferred that, the rubber tube is neoprene molded rubber pipe or butyronitrile molded rubber pipe.
The method that the use reducing measurement conduit of this electromagnetic flowmeter abandoning tradition improves rate of flow of fluid, is keeping tradition electricity
On the basis of magnetic flowmeter measurement conduit, by changing the inside liner tubular construction of electromagnetic flowmeter, form internal lining pipe stage casing
Undergauge so that flowmeter to low flow velocity when being measured, and fluid is got a promotion by measuring the flow velocity of pipeline section, to obtain more preferably, more
Stable flow signal.Magnet exciting coil is directly attached on internal lining pipe simultaneously, and its magnetic circuit is directed through internal lining pipe, and magnetic field intensity is damaged
Lose few, directly act on detected fluid, relative to traditional structural form, magnetic field intensity is stronger, electromagnetic flowmeter it is Targets
Can be more preferably；Magnetic flux line need not be then passed through measuring conduit simultaneously, therefore measure the material of conduit without again using non-magnetic material
Material, in this way, both without into reducer pipe, measurement catheter fabrication has been widened into the material of measurement conduit again, so as to greatly cut down electricity
The production cost of magnetic flowmeter, reduces the technology difficulty of production.Traditional electromagnetic flowmeter rubber liner pipe needs in addition
Make after measurement conduit, be integrally sent to the processing of internal lining pipe processing factory, and used after the pressing mold rubber tube of reducing, due to rubber tube
It is made of disposable pressing mold, can greatly shortens the production cycle of flowmeter, reduce transport and production cost.
Claims (4)
1. a kind of electromagnetic flowmeter suitable for low flow velocity, including measurement conduit, internal lining pipe, magnet exciting coil, electrode and terminal box,
It is characterized in that：The measurement conduit is straight tube, and the internal lining pipe is reducer pipe and is located at the measurement pipe inner wall, described
Magnet exciting coil is located at the liner pipe outer wall and between the measurement conduit and internal lining pipe, and the electrode is along caliber direction
It is fixed on measurement duct wall and electrode tip is flushed with liner pipe internal surface, the terminal box is set up in the measurement by branch
The outer wall of conduit.
2. the electromagnetic flowmeter according to claim 1 suitable for low flow velocity, it is characterised in that：The reducer pipe is tapered
Increaser, its stage casing caliber is less than leading portion and back segment caliber, and reducing angle is 5 ~ 15 °.
3. the electromagnetic flowmeter according to claim 1 or 2 suitable for low flow velocity, it is characterised in that：The measurement conduit
The rubber tube being made for common irony or carbon steel conduit, the internal lining pipe for molding.
4. the electromagnetic flowmeter according to claim 3 suitable for low flow velocity, it is characterised in that：The rubber tube is neoprene
Molded rubber pipe or butyronitrile molded rubber pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621161380.8U CN206488822U (en) | 2016-10-25 | 2016-10-25 | Suitable for the electromagnetic flowmeter of low flow velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621161380.8U CN206488822U (en) | 2016-10-25 | 2016-10-25 | Suitable for the electromagnetic flowmeter of low flow velocity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206488822U true CN206488822U (en) | 2017-09-12 |
Family
ID=59767981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621161380.8U Active CN206488822U (en) | 2016-10-25 | 2016-10-25 | Suitable for the electromagnetic flowmeter of low flow velocity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206488822U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340815A (en) * | 2018-09-29 | 2019-02-15 | 广州南控自动化设备有限公司 | A kind of automatic flow control system of combustion chamber |
| CN109416267A (en) * | 2016-07-12 | 2019-03-01 | 恩德斯+豪斯流量技术股份有限公司 | For by the flow velocity of magnetic inductive flow measurement equipment measuring medium or the method for volume flow and magnetic inductive flow measurement equipment |
| CN110209210A (en) * | 2019-07-01 | 2019-09-06 | 北京七星华创流量计有限公司 | Filling member and mass flow controller for mass flow controller |
| CN112268586A (en) * | 2020-11-05 | 2021-01-26 | 南京梅特朗测控仪表有限公司 | Intelligent electromagnetic flowmeter for measuring slurry and measuring method thereof |
| CN114059624A (en) * | 2021-12-24 | 2022-02-18 | 上海艺迈实业有限公司 | Tank-type water supply equipment with steady voltage regulation function |
-
2016
- 2016-10-25 CN CN201621161380.8U patent/CN206488822U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109416267A (en) * | 2016-07-12 | 2019-03-01 | 恩德斯+豪斯流量技术股份有限公司 | For by the flow velocity of magnetic inductive flow measurement equipment measuring medium or the method for volume flow and magnetic inductive flow measurement equipment |
| CN109416267B (en) * | 2016-07-12 | 2020-09-11 | 恩德斯+豪斯流量技术股份有限公司 | Method for measuring the flow velocity or volume flow of a medium by means of a magnetic-inductive flow measuring device and magnetic-inductive flow measuring device |
| US11029182B2 (en) | 2016-07-12 | 2021-06-08 | Endress+Hauser Flowtec Ag | Magnetic-inductive flowmeter and method for measuring the flow velocity of low conductivity media with a narrowing measuring tube and a field guide-back device |
| CN109340815A (en) * | 2018-09-29 | 2019-02-15 | 广州南控自动化设备有限公司 | A kind of automatic flow control system of combustion chamber |
| CN110209210A (en) * | 2019-07-01 | 2019-09-06 | 北京七星华创流量计有限公司 | Filling member and mass flow controller for mass flow controller |
| CN112268586A (en) * | 2020-11-05 | 2021-01-26 | 南京梅特朗测控仪表有限公司 | Intelligent electromagnetic flowmeter for measuring slurry and measuring method thereof |
| CN112268586B (en) * | 2020-11-05 | 2024-03-26 | 南京梅特朗测控仪表有限公司 | Intelligent electromagnetic flowmeter for measuring slurry and measuring method thereof |
| CN114059624A (en) * | 2021-12-24 | 2022-02-18 | 上海艺迈实业有限公司 | Tank-type water supply equipment with steady voltage regulation function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206488822U (en) | Suitable for the electromagnetic flowmeter of low flow velocity | |
| JP6132918B2 (en) | Integrated magnetic flow meter | |
| JP5787476B2 (en) | Magnetic inductive flow meter | |
| CN205426251U (en) | Multistage rectification type electromagnetic flow transducer | |
| CN104807511B (en) | A kind of pipeline flowmeter | |
| CN101545795A (en) | Fluent metal electrical flow meter | |
| CN113167613B (en) | Magnetic inductive flowmeter | |
| RU2401990C2 (en) | Magnetic-inductive flow metre | |
| CN104019860A (en) | Flowmeter integrating electromagnetism and ultrasonic and use method of flowmeter | |
| CN105841760B (en) | A kind of inserted electromagnet flow meter | |
| CN207894462U (en) | A kind of wide-range compares electromagnetic flow transducer | |
| CN204594516U (en) | Pipeline section type mass flowmeter | |
| CN107036667A (en) | Electromagnetic flowmeter and pressure sensor combined device and installation method | |
| CN206281533U (en) | For the plug-in type rubber tube and electromagnetic flowmeter of electromagnetic flowmeter lining | |
| CN211117871U (en) | Flow measurement control integration electric valve | |
| CN209656106U (en) | A kind of against shock magnetic flow meter | |
| RU101817U1 (en) | ELECTROMAGNETIC FLOW METER | |
| CN203657868U (en) | Electromagnetic and ultrasonic integrated-design flow meter | |
| CN204831414U (en) | Be applied to electromagnetic sensor of frequency conversion excitation technique | |
| CN106813733A (en) | A kind of electromagnetic flowmeter | |
| CN107727174A (en) | A kind of electromagnetic flowmeter | |
| CN214471120U (en) | Electromagnetic water meter sensor | |
| CN104457862B (en) | A kind of differential pressure flowmeter | |
| CN204241050U (en) | Two energized circuit electromagnetic flowmeter | |
| AU2010100111A4 (en) | Flow Meters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |