CN113203445A - Online magnetic floater flowmeter and automatic metering method - Google Patents
Online magnetic floater flowmeter and automatic metering method Download PDFInfo
- Publication number
- CN113203445A CN113203445A CN202110444704.8A CN202110444704A CN113203445A CN 113203445 A CN113203445 A CN 113203445A CN 202110444704 A CN202110444704 A CN 202110444704A CN 113203445 A CN113203445 A CN 113203445A
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- Prior art keywords
- magnetic
- floater
- flowmeter
- height
- indicator
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- 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
- G01F1/05—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 mechanical effects
- G01F1/52—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 mechanical effects by measuring the height of the fluid level due to the lifting power of the fluid flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
A magnetic float flowmeter and automatic metering method on-line features that the magnetic float in the fluid tube of glass flowmeter transfers the height information to magnetic indicator parallel to fluid tube by magnetic coupling action, all the magnetic turning columns under the height are driven to turn one half of magnetic flow to adjacent glass flowmeter, and the miniature equivalent resistors of another half of each magnetic turning column are parallelly connected to wires. The invention operates the magnetic coupling effect, and isolates the charged part from the glass flowmeter, thereby improving the safety of the device; the resistance value in the access circuit is calculated through the resistance sensor, so that the reading is accurate and reliable. The on-line flowmeter device has simple structure, low cost and easy maintenance, and is suitable for various industrial fields.
Description
Technical Field
The invention relates to the field of float flowmeters, in particular to an online magnetic float flowmeter and an automatic metering method.
Background
At present, the float flowmeter is widely applied to important fields of electric power, chemical industry, medicine, materials and the like, but the reading of the flowmeter basically depends on manual reading, artificial metering errors are easily caused, and manually read data cannot be directly applied to an equipment control system, so that the industrial automation degree is limited and the working efficiency of the equipment is influenced.
In recent years, a plurality of methods are available, the weight of a rotor is increased by using a resistance-type and capacitance-type method for measurement, so that the measurement accuracy is influenced, and the measurement has potential safety hazards due to the fact that the resistance-type and capacitance-type devices are electrified. The automatic metering method based on machine vision has a complex structure of the measuring device, is not easy to be applied to industrial intelligent equipment as an element, and is not suitable for an industrial field without network signals of a thermal power plant by applying a wireless WiFi transmission and data reading mode. The visual sensor is used for a long time in a measurement field, is easily influenced by the environment, is easy to form fuzzy images, and can cause that the float flowmeter cannot be completely shot. The non-contact metering method, such as wavelet measurement, has too high cost and is not suitable for popularization and use.
In order to solve the automatic metering of the industrial field flowmeter and realize quick and effective metering, the flowmeter which is stable, reliable and safe and can automatically measure on line becomes a new requirement of an intelligent industrial field.
Disclosure of Invention
The invention aims to provide an online magnetic float flowmeter and an automatic metering method by combining with new requirements of the current intelligent industrial field, realizes real-time flow monitoring by utilizing a magnetic float technology, and has the advantages of high data measurement precision, strong reliability, simplicity, convenience, rapidness and safety, and a measurement system has good environment adaptability and low cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
an online magnetic float flowmeter comprises a glass flowmeter 1, wherein a magnetic float 2 is arranged in a fluid pipe in the glass flowmeter 1, a magnetic indicator 3 parallel to the fluid pipe is fixed on the outer surface of the glass flowmeter 1, a row of magnetic turning columns 4 are arranged from the top to the bottom in the magnetic indicator 3, each magnetic turning column 4 is divided into two halves which are respectively made of different materials, one half is made of a magnetic material opposite to the magnetic float 2 in the glass flowmeter 1, the other half is made of a non-magnetic material with a miniature equivalent resistor 5 embedded inside, a lead 6 is arranged from the top to the bottom close to the outer side in the magnetic indicator, and when the online magnetic float flowmeter is in an initial state, one half of the non-magnetic material with the miniature equivalent resistor 5 embedded in the magnetic turning columns 4 is close to the magnetic float 2 and is not connected with the lead 6; (ii) a The magnetic floater 2 directly floats on the fluid, and a magnetic turning column 4 in the magnetic indicator 3 can be magnetically coupled with the magnetic floater; due to the coupling effect, when the flow of the fluid to be measured in the fluid pipe goes up and down, the magnetic floater 2 in the fluid pipe goes up and down along with the flow of the fluid, when the magnetic floater 2 goes up, the magnetic floater 2 drives the magnetic turning column 4 in the magnetic indicator 3 to turn over 180 degrees from bottom to top through magnetic coupling, so that the magnetic turning column 4 is embedded into a half of the nonmagnetic material of the miniature equivalent resistor 5 and is far away from the magnetic floater 2, further the miniature equivalent resistor 5 in the turned magnetic turning column 4 is connected into the lead 6 in parallel, and the miniature equivalent resistor 5 and the lead 6 are connected with the resistance sensor 7 at the top of the magnetic indicator 3 to form a loop; the higher the height of the magnetic floater 2 is, the more the micro equivalent resistors 5 connected in parallel are, the smaller the total resistance is, the larger the current is, the current is converted into the current through the resistance sensor 7 to be used as an output signal, and then the height of the magnetic floater 2, namely the height of the liquid level in the fluid pipe is converted through the output current.
The conversion formula of the output current to the height of the magnetic floater 2, namely the liquid level height in the fluid pipe is as follows:
Preferably, the current output by the resistance sensor 7 is 4-20mA, and the measurement precision is high.
Preferably, the magnetic turning column 4 is round, so as to be convenient for turning.
Compared with the prior art, the invention has the following advantages:
1. the charged part is isolated from the glass flowmeter by using the magnetic coupling effect, so that the safety of the device is improved.
2. The resistance value in the access circuit is calculated through the resistance sensor, so that the reading is accurate and reliable.
3. The on-line magnetic float flowmeter has the advantages of simple structure, low cost and easy maintenance, and is suitable for various industrial fields.
Drawings
FIG. 1 is a schematic diagram of an on-line magnetic float flow meter according to the present invention.
Detailed Description
The working principle of the present invention will be described in more detail with reference to the accompanying drawings.
As shown in fig. 1, the online magnetic float flowmeter of the present invention comprises a glass flowmeter 1, a magnetic float 2 is arranged in a fluid pipe inside the glass flowmeter 1, a magnetic indicator 3 parallel to the fluid pipe is fixed outside the surface of the glass flowmeter 1, a row of magnetic turning columns 4 is arranged from top to bottom in the magnetic indicator 3, each magnetic turning column 4 is divided into two halves, which are respectively made of different materials, one half is made of a magnetic material opposite to the magnetic float 2 in the glass flowmeter 1, the other half is made of a non-magnetic material with a micro equivalent resistor 5 embedded inside, a lead 6 is arranged from top to bottom inside the magnetic indicator near the outside, and in an initial state, the magnetic turning column 4 is embedded into the magnetic float 2 near the non-magnetic material with the micro equivalent resistor 5, and is not connected with the lead 6; (ii) a The magnetic floater 2 directly floats on the fluid, and a magnetic turning column 4 in the magnetic indicator 3 can be magnetically coupled with the magnetic floater; due to the coupling effect, when the flow of the fluid to be measured in the fluid pipe goes up and down, the magnetic floater 2 in the fluid pipe goes up and down along with the flow of the fluid, when the magnetic floater 2 goes up, the magnetic floater 2 drives the magnetic turning column 4 in the magnetic indicator 3 to turn over 180 degrees from bottom to top through magnetic coupling, so that the magnetic turning column 4 is embedded into a half of the nonmagnetic material of the miniature equivalent resistor 5 and is far away from the magnetic floater 2, further the miniature equivalent resistor 5 in the turned magnetic turning column 4 is connected into the lead 6 in parallel, and the miniature equivalent resistor 5 and the lead 6 are connected with the resistance sensor 7 at the top of the magnetic indicator 3 to form a loop; the higher the height of the magnetic floater 2 is, the more the micro equivalent resistors 5 connected in parallel are, the smaller the total resistance is, the larger the current is, the 4-20mA current is converted into an output signal through the resistance sensor 7, and then the output signal is converted into the height of the magnetic floater 2, namely the height of the liquid level in the fluid pipe.
As shown in fig. 1, the magnetic floater 2 transmits the height information to the magnetic indicator 3 through the magnetic coupling effect, all the magnetic turning columns 4 below the height are driven to turn one magnetic half to the left glass flowmeter 1, and the miniature equivalent resistor 5 of the other half of each magnetic turning column is connected in parallel to a lead 6, at this time, the resistance value connected with the resistor sensor 7 changes, and the output current signal also changes.
Claims (4)
1. An online magnetic float flow meter comprising a glass flow meter (1), characterized in that: the glass flowmeter is characterized in that a magnetic floater (2) is arranged in a fluid pipe in the glass flowmeter (1), a magnetic indicator (3) parallel to the fluid pipe is fixed on the outer side of the surface of the glass flowmeter (1), a row of magnetic turning columns (4) are arranged from the top to the bottom in the magnetic indicator (3), each magnetic turning column (4) is divided into two halves which are made of different materials respectively, one half is made of a magnetic material opposite to the magnetic floater (2) in the glass flowmeter (1), the other half is made of a non-magnetic material with a micro equivalent resistor (5) embedded inside, a lead (6) is arranged from the top to the bottom in the magnetic indicator close to the outer side, and in an initial state, one half of the non-magnetic material with the micro equivalent resistor (5) embedded in the magnetic turning columns (4) is close to the magnetic floater (2) and is not connected with the lead (6); the magnetic floater (2) is directly floated on the fluid, and a magnetic turning column (4) in the magnetic indicator (3) can be magnetically coupled with the magnetic floater; due to the coupling effect, when the flow of the fluid to be measured in the fluid pipe rises and falls, the magnetic floater (2) in the fluid pipe also rises and falls, when the magnetic floater (2) rises, the magnetic floater (2) drives the magnetic turning column (4) in the magnetic indicator (3) to turn over 180 degrees from bottom to top through magnetic coupling, so that half of the nonmagnetic material embedded in the micro equivalent resistor (5) of the magnetic turning column (4) is far away from the magnetic floater (2), further the micro equivalent resistor (5) in the turned magnetic turning column (4) is connected into a lead (6), the micro equivalent resistor (5) and the lead (6) are connected with the resistance sensor (7) at the top of the magnetic indicator (3) to form a loop, the higher the height of the magnetic floater (2), the more the micro equivalent resistors (5) connected in parallel, the smaller the total resistance, the larger the current is converted into the current as an output signal through the resistance sensor (7), and then the output current is converted into the height of the magnetic floater (2), namely the liquid level height in the fluid pipe.
2. An in-line magnetic float flow meter according to claim 1, wherein: the conversion formula of the output current to the height of the magnetic floater (2), namely the liquid level height in the fluid pipe is as follows:
3. An in-line magnetic float flow meter according to claim 1, wherein: the current output by the resistance sensor (7) is 4-20 mA.
4. An in-line magnetic float flow meter according to claim 1, wherein: the magnetic turning column (4) is round and convenient to turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110444704.8A CN113203445A (en) | 2021-04-24 | 2021-04-24 | Online magnetic floater flowmeter and automatic metering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110444704.8A CN113203445A (en) | 2021-04-24 | 2021-04-24 | Online magnetic floater flowmeter and automatic metering method |
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| Publication Number | Publication Date |
|---|---|
| CN113203445A true CN113203445A (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110444704.8A Pending CN113203445A (en) | 2021-04-24 | 2021-04-24 | Online magnetic floater flowmeter and automatic metering method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327401Y (en) * | 2008-12-29 | 2009-10-14 | 茂名学院 | Magnetic reversing column type rotameter |
| CN202661132U (en) * | 2012-05-22 | 2013-01-09 | 瓮福（集团）有限责任公司 | Slide resistance type magnetic turning plate liquid level transmitter |
| CN206638318U (en) * | 2017-04-06 | 2017-11-14 | 泰兴市热工仪表厂 | A kind of magnetic float level indicator |
| CN210242927U (en) * | 2019-08-16 | 2020-04-03 | 瑞大集团有限公司 | Hall switch type magnetic remote transmitter |
-
2021
- 2021-04-24 CN CN202110444704.8A patent/CN113203445A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327401Y (en) * | 2008-12-29 | 2009-10-14 | 茂名学院 | Magnetic reversing column type rotameter |
| CN202661132U (en) * | 2012-05-22 | 2013-01-09 | 瓮福（集团）有限责任公司 | Slide resistance type magnetic turning plate liquid level transmitter |
| CN206638318U (en) * | 2017-04-06 | 2017-11-14 | 泰兴市热工仪表厂 | A kind of magnetic float level indicator |
| CN210242927U (en) * | 2019-08-16 | 2020-04-03 | 瑞大集团有限公司 | Hall switch type magnetic remote transmitter |
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Application publication date: 20210803 |
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