CN215178056U - High-precision electromagnetic flowmeter calibration system - Google Patents
High-precision electromagnetic flowmeter calibration system Download PDFInfo
- Publication number
- CN215178056U CN215178056U CN202121146922.5U CN202121146922U CN215178056U CN 215178056 U CN215178056 U CN 215178056U CN 202121146922 U CN202121146922 U CN 202121146922U CN 215178056 U CN215178056 U CN 215178056U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic flowmeter
- calibration system
- converter
- cpu
- detection unit
- 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
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to the technical field of electromagnetic flowmeters, in particular to a high-precision electromagnetic flowmeter calibration system, which is characterized in that under the condition of low flow velocity of conductive liquid (0.5 m/s-0.1 m/s), a CPU controls a detection unit to detect and calibrate the flow of the conductive liquid, the CPU controls a converter to cooperate with application software and application programs to analyze and process the data detected and calibrated by the detection unit, the converter transmits the flow data obtained after analysis and processing to the CPU, so that an instrument panel displays the flow data in a Chinese form, when equipment breaks down, the CPU controls a remote alarm to send out information, so that workers can overhaul the equipment, and the use occasion and the calibration occasion of the equipment are the same as the operation method of the existing electromagnetic flowmeter, thereby improving the practical range and the measurement precision of the equipment; the remote alarm system comprises a CPU, a converter, a detection unit, an instrument panel and a remote alarm.
Description
Technical Field
The utility model relates to an electromagnetic flowmeter's technical field especially relates to a high accuracy electromagnetic flowmeter calibration system.
Background
The electromagnetic flowmeter is a flow meter manufactured according to Faraday's law of electromagnetic induction, and when a conductive fluid flows in a magnetic field in a vertical direction to cut a magnetic induction stress line, induced potentials are generated on electrodes on two sides of a pipeline. The formula is as follows:
Ex＝BDv
wherein Ex is induced potential, V;
b-magnetic induction, T
D-inner diameter of pipe, m
v-average flow velocity of liquid, m/s
However, the volume flow rate Qv is equal to the product of the flow velocity v of the fluid and the pipe cross-sectional area (pi D2)/4, and the formula (1) is substituted into the formula:
Qv＝(πD/4B)*Ex
when the diameter D of the pipeline is determined and the magnetic induction intensity B is kept unchanged, the measured volume flow and the induced potential are in a linear relation. If one electrode is inserted into each of the two sides of the pipeline, the induced potential Ex can be introduced, and the volume flow can be obtained by measuring the magnitude of the induced potential.
The electromagnetic flowmeter has simple and reliable structure, no movable parts and long service life. And no intercepting and flow blocking part exists, and the pressure loss and the fluid blockage phenomenon do not exist. The device has the advantages of no mechanical inertia, quick response and good stability, and can be applied to automatic detection, adjustment and program control systems. The measurement precision is not influenced by the kind of the measured medium and the physical quantity parameters such as temperature, viscosity, density, pressure and the like, and the method is applied to the measurement of various conductive liquids.
However, the electromagnetic flowmeter has a defect that when the flow rate of the measured fluid is less than 0.5m/s, the measurement accuracy is greatly reduced, even the electromagnetic flowmeter cannot be used, and common manufacturers have the instruction to use the electromagnetic flowmeter in the occasions where the flow rate is greater than 0.5m/s, which seriously influences the application range of the electromagnetic flowmeter.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a conductive liquid which can be used for conducting electricity under the condition of low flow velocity (0.5 m/s-0.1 m/s), the CPU controls the detection unit to detect and calibrate the flow of the conductive liquid, controls the converter to cooperate with application software and application programs, the data detected and calibrated by the detection unit is analyzed and processed, the converter transmits the flow data obtained after analysis and processing to the CPU, the instrument panel displays the flow data in Chinese form, when the equipment is in failure, the CPU controls the remote alarm to send out information, so that the working personnel can overhaul the equipment, the application occasion and the calibration occasion of the device are the same as the operation method of the prior electromagnetic flowmeter, therefore, the practical range and the measurement accuracy of the device are improved.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, including CPU central processing unit, converter, detecting element, instrument panel and remote alarm, CPU central processing unit is connected with converter, instrument panel and remote alarm electricity respectively, and detecting element is connected with the converter electricity;
the detection unit consists of a magnetic circuit system, a measuring conduit, an electrode, a shell and a lining.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, magnetic circuit adopts alternating magnetic field, and is that the excitation of 50HZ power frequency power supply produces.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, the measuring catheter adopts not magnetic conduction, low conductivity, low heat conductivity and has certain mechanical strength's material to make.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, the electrode is made by the stainless steel of non-magnetic conduction to the electrode flushes with the lining.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, the shell is made by ferromagnetic material.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, the lining is installed on the inboard of measuring the pipe and the flange seal face.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, be provided with the warning interface on the instrument panel to be provided with four kinds of reports to the police on the interface, be blank pipe, excitation, range and output respectively, and four kinds of reports to the police are the scintillation suggestion.
Compared with the prior art, the beneficial effects of the utility model are that: under the condition of low flow velocity of the conductive liquid (0.5-0.1 m/s), the CPU controls the detection unit to detect and calibrate the flow of the conductive liquid, then the CPU controls the converter to match with application software and application programs, the data detected and calibrated by the detection unit is analyzed and processed, then the converter transmits the analyzed and processed flow data to the CPU, so that the instrument panel displays the flow data in a Chinese form, when the equipment fails, the CPU controls a remote alarm to send out information, so that a worker overhauls the equipment, and the use occasion and the calibration occasion of the equipment are the same as the operation method of the existing electromagnetic flowmeter, thereby improving the practical range and the measurement precision of the equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of a control circuit program according to the present invention;
fig. 3 is a schematic diagram of the electrical principle structure of the present invention;
fig. 4 is a schematic diagram of the excitation principle structure of the present invention;
in the drawings, the reference numbers: 1. a CPU central processing unit; 2. a converter; 3. a detection unit; 4. an instrument panel; 5. and (5) remote alarming.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the high-precision calibration system for an electromagnetic flowmeter of the present invention comprises a CPU 1, a converter 2, a detection unit 3, an instrument panel 4 and a remote alarm 5, wherein the CPU 1 is electrically connected to the converter 2, the instrument panel 4 and the remote alarm 5, and the detection unit 3 is electrically connected to the converter 2;
the detection unit 3 consists of a magnetic circuit system, a measuring conduit, an electrode, a shell and a lining; under the condition of low flow velocity of the conductive liquid, the flow of the conductive liquid is detected and calibrated by controlling the detection unit 3 through the CPU 1, then the converter 2 is controlled by the CPU 1 to match with application software and application programs, the data detected and calibrated by the detection unit 3 are analyzed and processed, then the converter 2 transmits the analyzed and processed flow data to the CPU 1, the instrument panel 4 displays the flow data in a Chinese form, when the equipment fails, the CPU 1 controls the remote alarm 5 to send out information, so that a worker can overhaul the equipment, and the use occasion and the calibration occasion of the equipment are the same as the operation method of the existing electromagnetic flowmeter, thereby improving the practical range and the measurement precision of the equipment.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, magnetic circuit adopts alternating magnetic field, and is that 50HZ power frequency power excitation produced; the quality of the equipment is reduced, and therefore the practicability of the equipment is improved.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, the measuring catheter adopts not magnetic conduction, low conductivity, low thermal conductivity and has certain mechanical strength's material to make; the magnetic flux is convenient to be shunted or short-circuited when the magnetic force line passes through the measuring conduit, thereby improving the practicability of the device.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, the electrode is made by the stainless steel of non-magnetic conduction, and the electrode is flushed with the lining; the fluid is convenient to pass through, the obstruction and the accumulation of sediments are reduced, and therefore the practicability of the equipment is improved.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, the shell is made by ferromagnetic material; the excitation coil is covered by a cage, so that the interference of an external magnetic field to the excitation coil is reduced, and the practicability of the equipment is improved.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, the lining is installed on the inboard of measuring pipe and flange seal face; the corrosion resistance of the measuring conduit is increased, and the induced potential is prevented from being short-circuited by the wall of the metal measuring conduit, so that the service life of the device is prolonged.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, be provided with the warning interface on instrument panel 4 to be provided with four kinds of reports to the police on the warning interface, be blank pipe, excitation, range and output respectively, and four kinds of reports to the police are scintillation suggestion; the empty pipe alarm indicates that a non-full pipe condition occurs in the pipeline, the excitation alarm indicates that the excitation function part of the flowmeter is abnormal, the range alarm indicates that the actual flow value exceeds the set maximum value, and the instantaneous flow can still be normally displayed at the moment, but the current is less than 20mA, the output alarm indicates that the output signal of the flowmeter is abnormal, the fault position of the equipment can be conveniently judged by a worker, and therefore the convenience of the equipment is improved.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, it is at the during operation, at first 0.5m/s ~ 0.1m/s under the low velocity of flow condition of conducting liquid, detect and mark the flow of conducting liquid through CPU 1 control detecting element 3, later cooperate application and application through CPU 1 control converter 2, the data that detects and mark detecting element 3 carry out analysis and processing, later converter 2 carries the flow data that obtain after analysis and processing to CPU 1, make instrument panel 4 show flow data with chinese form, and when equipment breaks down, send information through CPU 1 control remote alarm 5, make the staff overhaul equipment can.
The utility model discloses a high accuracy electromagnetic flowmeter calibration system, its mounting means, connected mode or set up the mode and be common mechanical type, as long as can reach all can implement of its beneficial effect, technical personnel only need install and operate according to its subsidiary instructions in this industry.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A high-precision electromagnetic flowmeter calibration system is characterized by comprising a CPU (Central processing Unit) (1), a converter (2), a detection unit (3), an instrument panel (4) and a remote alarm (5), wherein the CPU (1) is electrically connected with the converter (2), the instrument panel (4) and the remote alarm (5) respectively, and the detection unit (3) is electrically connected with the converter (2);
the detection unit (3) consists of a magnetic circuit system, a measuring conduit, an electrode, a shell and a lining.
2. A high accuracy electromagnetic flowmeter calibration system as claimed in claim 1, wherein said magnetic circuit system employs an alternating magnetic field and is excited by a 50HZ line frequency power supply.
3. A high accuracy electromagnetic flowmeter calibration system as claimed in claim 1 wherein said measurement conduit is made of a material that is magnetically non-conductive, has low electrical conductivity, has low thermal conductivity, and has mechanical strength.
4. A high accuracy electromagnetic flowmeter calibration system as set forth in claim 1 wherein said electrodes are made of non-magnetically permeable stainless steel and are flush with the liner.
5. A high accuracy electromagnetic flowmeter calibration system as set forth in claim 1 wherein said housing is made of a ferromagnetic material.
6. A high accuracy electromagnetic flowmeter calibration system as set forth in claim 1 wherein said liner is mounted on the inside of the measurement conduit and on the flange seal face.
7. The high-precision calibration system of the electromagnetic flowmeter as claimed in claim 1, wherein an alarm interface is arranged on the instrument panel (4), and four alarms are arranged on the alarm interface, namely, empty pipe, excitation, measuring range and output, and all the four alarms are flashing prompts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121146922.5U CN215178056U (en) | 2021-05-26 | 2021-05-26 | High-precision electromagnetic flowmeter calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121146922.5U CN215178056U (en) | 2021-05-26 | 2021-05-26 | High-precision electromagnetic flowmeter calibration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215178056U true CN215178056U (en) | 2021-12-14 |
Family
ID=79372084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121146922.5U Active CN215178056U (en) | 2021-05-26 | 2021-05-26 | High-precision electromagnetic flowmeter calibration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215178056U (en) |
-
2021
- 2021-05-26 CN CN202121146922.5U patent/CN215178056U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2240745B1 (en) | Flangeless magnetic flowmeter with integrated retention collar and liner protector | |
| EP2901108B1 (en) | Magnetic flowmeter with multiple coils | |
| EP2427737B1 (en) | Magnetic flowmeter for measuring flow and corresponding method | |
| CN101506629A (en) | Flow measurement diagnostics | |
| US3406569A (en) | Magnetic flowmeter of improved linearity | |
| CN101545795A (en) | Fluent metal electrical flow meter | |
| US20110107847A1 (en) | Acoustic Sensor For Averaging Pitot Tube Installation | |
| CN106556439B (en) | Entrained flow detection diagnostics | |
| CN102607889B (en) | A kind ofly get liquid metering method for analytical instrument | |
| CN215178056U (en) | High-precision electromagnetic flowmeter calibration system | |
| US3372589A (en) | Side-saddle magnetic flowmeter | |
| US6937943B2 (en) | Device and method for system and process supervision in a magneto-inductive sensor | |
| CN106950258B (en) | Transmitter device for measuring residual acidity or alkalinity in uranium mine leaching pulp | |
| CN207894462U (en) | A kind of wide-range compares electromagnetic flow transducer | |
| EP1847813B1 (en) | Method and device for contactless mass flow measurement of electrically conductive fluids | |
| CN207499826U (en) | One kind is with brill mud flow rate monitoring device | |
| CN205940661U (en) | Liquid volume flow rate measuring device based on graphite alkene nano -material is as detection electrode | |
| CN212843761U (en) | Electromagnetic flowmeter | |
| CN212747922U (en) | Micro-flow metal tube float flowmeter | |
| KR102259810B1 (en) | Electronic flow meter that can increase the accuracy of flow measurement of low flow fluid in the pipeline | |
| CN105547383A (en) | Fluid flow measuring method based on electromagnetic principle | |
| CN216815601U (en) | Nuclear sampling system electromagnetic flowmeter and sampling system | |
| CN220960185U (en) | Multi-parameter electromagnetic flowmeter | |
| JPH03235024A (en) | Flowmeter | |
| KR102616224B1 (en) | Flowmeter resistant to environmental changes and flow measurement method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |