CN107727174A - A kind of electromagnetic flowmeter - Google Patents
A kind of electromagnetic flowmeter Download PDFInfo
- Publication number
- CN107727174A CN107727174A CN201610650679.8A CN201610650679A CN107727174A CN 107727174 A CN107727174 A CN 107727174A CN 201610650679 A CN201610650679 A CN 201610650679A CN 107727174 A CN107727174 A CN 107727174A
- Authority
- CN
- China
- Prior art keywords
- pipe
- measurement pipe
- water
- measurement
- flange
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
Abstract
The invention discloses a kind of electromagnetic flowmeter, including water-in flange, measurement pipe, measure pipe shell, converter, coil, electrode and water-output flange, described water-in flange is located at measurement pipe one end, water-output flange is located at the measurement pipe other end, described converter is installed in measurement pipe shell, the coil and electrode are arranged in measurement pipe, and in measurement pipe shell, also include straight pipe, described straight pipe is connected between water-in flange and measurement pipe, so can be low to solve reliability come the mean flow rate in stably measured tube section by straight pipe, stability is poor, the problem of measurement accuracy is not high.
Description
Technical field
The present invention relates to a kind of flowmeter, especially a kind of electromagnetic flowmeter.
Background technology
With the horizontal continuous improvement of industrial automation, in industrial processes, it is necessary to fluid in various pipes
Flow, flow velocity accurately measure and control, meanwhile, further to carry out the work of the items such as energy-conservation, emission reduction, consumption reduction, environmental protection, stream
The importance of measurement, which also seems, to become increasingly conspicuous.
Existing electromagnetic flowmeter, including water-in flange, measurement pipe, measurement pipe shell, converter, coil, electrode and
Water-output flange, described water-in flange are located at measurement pipe one end, and water-output flange is located at the measurement pipe other end, described converter peace
Loaded in measurement pipe shell, the coil and electrode are arranged in measurement pipe, and in measurement pipe shell.This electromagnetic current
The general principle of gauge is Faraday's electromagnetic induction law, i.e., conductor during cutting magnetic line movement, produces in magnetic field at its both ends
Raw induced electromotive force.Conductive liquid is in the non magnetic measurement Bottomhole pressure perpendicular to magnetic field, the direction vertical with flow direction
Upper to produce the induced potential proportional to flow, by " not carrying out bright right hand rule ", its value is in the direction of electromotive force：
E=KBVD ；
E:Induced electromotive force；
B ：Magnetic induction intensity；
V ：Measure the mean flow rate in tube section；
D ：The internal diameter of measurement pipe；
K ：Instrument constant, the KB/ π D of K=4.
Existing flowrate measuring tool makes the pressure in measurement pipe because the pipeline that measurement pipe connects falls short of or crooked pipeline
Power is uneven, so that the problem of existing flowrate measuring tool generally existing reliability is low, and stability is poor, and measurement accuracy is not high,
Especially in the pipeline of measurement closing in the volume flow of conduction liquid and slurries, the defects of its structure design is more obvious.
The content of the invention
The invention aims to solve above-mentioned the deficiencies in the prior art and measurement accuracy can effectively be ensured by providing one kind
The electromagnetic flowmeter with straight pipe.
To achieve these goals, the electromagnetic flowmeter designed by the present invention, including water-in flange, measurement pipe, measurement pipe
Shell, converter, coil, electrode and water-output flange, described water-in flange are located at measurement pipe one end, and water-output flange is positioned at measurement
The pipe other end, described converter are installed in measurement pipe shell, and the coil and electrode are arranged in measurement pipe, and positioned at survey
In buret shell, in addition to straight pipe, described straight pipe are connected between water-in flange and measurement pipe, described measurement pipe
Tube surfaces are provided with scale strip, and the range of the scale strip is 0-100.
The electromagnetic flowmeter with straight pipe that the present invention obtains, including straight pipe, described straight pipe are connected into water law
Between blue and measurement pipe, straight pipe can play a part of a current stabilization, can make the rate of flow of fluid into before measurement pipe more
It is stable, so that it is guaranteed that measurement accuracy；Therefore, the electromagnetic flowmeter that the present invention obtains can be cut by straight pipe come stably measured pipe
Mean flow rate in face solves in the prior art the problem of reliability is low, and stability is poor, and measurement accuracy is not high.
As preferred：Described straight-through length of tube is more than the measurement pipe, can so make arrival measurement pipe mean flow rate more
Add stabilization.
As preferred：Described straight pipe, water-in flange, water-output flange and measurement pipe is integral type structure；Measuring
Pipe is provided with two spaced protruding circular rings, in addition to a sleeve pipe to match with two protruding circular rings with week, described
Two annulus and sleeve pipe form the measurement pipe shell, make structure more easy, and operation is more flexible, and measurement is more accurate.
Brief description of the drawings
Fig. 1 is the overall package figure of embodiment 1 in the present invention.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment 1：
As shown in Fig. 1, the electromagnetic flowmeter with straight pipe of the present embodiment offer, including water-in flange 1, measurement pipe 2, survey
Buret shell 3, converter 4, coil 5, electrode 6 and water-output flange 7, described water-in flange 1 are located at the one end of measurement pipe 2, water law
Orchid 7 is located at the other end of measurement pipe 2, and described converter 4 is installed in measurement pipe shell 3, and the coil 5 and electrode 6 are arranged on
In measurement pipe 2, and in measurement pipe shell 3, in addition to straight pipe 8, described straight pipe 8 are connected to the He of water-in flange 1
Between measurement pipe 2.
The described length of straight pipe 8 is more than the measurement pipe 2, can so make the mean flow rate of arrival measurement pipe 2 more
It is stable.
The electromagnetic flowmeter that the present invention obtains, including straight pipe 8, described straight pipe 8 are connected to the He of water-in flange 1
, so can be low to solve reliability come the mean flow rate in the section of stably measured pipe 2 by straight pipe 8 between measurement pipe 2, it is stable
The problem of property is poor, and measurement accuracy is not high.
Specific embodiment described herein is only the design explanation for example to the present invention.Technology belonging to the present invention
The technical staff in field can make various modifications or supplement to described specific embodiment or using similar mode
Substitute, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (3)
1. a kind of electromagnetic flowmeter, including water-in flange, measurement pipe, measurement pipe shell, converter, coil, electrode and water outlet
Flange, it is characterized in that：Described water-in flange is located at measurement pipe one end, and water-output flange is located at the measurement pipe other end, and described turns
Parallel operation is installed in measurement pipe shell, and the coil and electrode are arranged in measurement pipe, and in measurement pipe shell, it is described
Straight pipe is connected between water-in flange and measurement pipe, and the tube surfaces of described measurement pipe are provided with scale strip, the scale
The range of bar is 0-100.
2. the electromagnetic flowmeter according to claim 1, it is characterized in that：Described straight pipe is provided with aerator.
3. the electromagnetic flowmeter according to claim 1, it is characterized in that：Described straight pipe, water-in flange, go out water law
Blue and measurement pipe is integral type structure；Be provided with two spaced protruding circular rings with measurement pipe week, in addition to one with
The sleeve pipe that two protruding circular rings match, described two annulus and sleeve pipe form the measurement pipe shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650679.8A CN107727174A (en) | 2016-08-10 | 2016-08-10 | A kind of electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650679.8A CN107727174A (en) | 2016-08-10 | 2016-08-10 | A kind of electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107727174A true CN107727174A (en) | 2018-02-23 |
Family
ID=61200054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610650679.8A Pending CN107727174A (en) | 2016-08-10 | 2016-08-10 | A kind of electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107727174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932859A (en) * | 2021-10-19 | 2022-01-14 | 大庆市镁龙测控技术有限公司 | Intelligent flowmeter with wide and adjustable measurement range |
-
2016
- 2016-08-10 CN CN201610650679.8A patent/CN107727174A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932859A (en) * | 2021-10-19 | 2022-01-14 | 大庆市镁龙测控技术有限公司 | Intelligent flowmeter with wide and adjustable measurement range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180223 |