CN113252122A - Charge flowmeter and flow metering method - Google Patents
Charge flowmeter and flow metering method Download PDFInfo
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- CN113252122A CN113252122A CN202110538057.7A CN202110538057A CN113252122A CN 113252122 A CN113252122 A CN 113252122A CN 202110538057 A CN202110538057 A CN 202110538057A CN 113252122 A CN113252122 A CN 113252122A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 43
- 230000005684 electric field Effects 0.000 claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 31
- 239000004973 liquid crystal related substance Substances 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 9
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a charge flowmeter and a flow metering method, which comprise a flowmeter shell, an electric field electrode and a detection electrode, and are characterized in that: the electric field electrode is vertically arranged on the outer wall of the flowmeter shell, the detection electrode and the electric field electrode are on the same horizontal plane, and the detection electrode is vertically arranged on the outer wall of the flowmeter shell. The invention relates to the field of environmental protection equipment, in particular to a charge flowmeter and a flow metering method. The invention has simple structure, convenient production, low cost, long service life and easy industrialized production, and can be widely applied to the measurement of various fluids.
Description
Technical Field
The invention relates to the field of environmental protection equipment, in particular to a charge flowmeter and a flow metering method.
Background
Metering is on the eye of industrial production. The flow measurement is one of the components of the measurement science and technology, and has close relation with national economy, national defense construction and scientific research. The work is well done, the flowmeter has important effects on ensuring the product quality, improving the production efficiency and promoting the development of scientific technology, and particularly has more obvious status and effect in national economy in the current times that the energy crisis and the industrial production automation degree are higher and higher. .
The signal detection electrodes of the existing various flowmeters are in contact with the fluid, and when strong acid, strong alkali, strong oxidant and fluid containing mineral substances are measured, the detection electrodes are easy to lose effectiveness, so that the phenomenon of inaccurate measurement or incapability of measurement is caused. This is a disadvantage of the prior art.
Disclosure of Invention
The invention aims to provide a charge flowmeter and a flow metering method, wherein the flowmeter has the advantages of simple structure, convenience in production, low cost, long service life and easiness in industrial production, and can be widely applied to measurement of various fluids.
The invention adopts the following technical scheme to realize the purpose of the invention:
the utility model provides a charge flowmeter, includes flowmeter casing, electric field electrode and detection electrode, its characterized in that: the electric field electrode is vertically arranged on the outer wall of the flowmeter shell, the detection electrode and the electric field electrode are on the same horizontal plane, and the detection electrode is vertically arranged on the outer wall of the flowmeter shell.
As a further limitation of the present technical solution, the single chip includes a chip U1, and the pins 12 to 39, 44, 45 and 48 to 55 of the U1 are electrically connected to the liquid crystal display respectively.
As a further limitation of the present technical solution, the single chip includes a chip U1, and the pins 12 to 39, 44, 45 and 48 to 55 of the U1 are electrically connected to the liquid crystal display respectively.
As a further limitation of the present invention, the pin 4 of the U1 is electrically connected to an amplifying circuit, and the amplifying circuit is electrically connected to the detection electrode.
As a further limitation of the present disclosure, the amplifying circuit includes an integrated operational amplifier, the pin 4 of the U1 is electrically connected to the pin 1 of the integrated operational amplifier and one end of the resistor R2, the pin 3 of the integrated operational amplifier is electrically connected to the detection electrode, the pin 2 of the integrated operational amplifier is electrically connected to the detection electrode and one end of the resistor R1, and the other ends of the resistor R1 and the resistor R2 are respectively grounded.
As a further limitation of the present invention, the pin 11 of the chip U1 is electrically connected to one end of the resistor R3, the other end of the resistor R3 is electrically connected to the pin 1 of the optical coupler, the pin 3 of the optical coupler is electrically connected to the electric field electrode and one end of the resistor R4, and the pin 2 of the optical coupler, the electric field electrode and the other end of the resistor R4 are respectively grounded.
As a further limitation of the present invention, the pin 64 of the U1 is electrically connected to the lithium metal battery.
A charge flow metering method, comprising the steps of:
the method comprises the following steps: installing a charge flow meter on a pipeline to be tested;
step two: the chip U1 sends out a voltage signal, the photoelectric coupler is conducted, an electric field is formed on the two electrodes of the electric field electrode, and the fluid flowing in the flowmeter shell obtains the electric charge generated by the electric field electrode, so that the fluid carrying the electric charge is obtained;
step three: when the fluid carrying charges passes through the detection electrode, the detection electrode detects the charges of the fluid, and the charge signal generates a voltage signal on the detection electrode;
step four: the voltage signal generated by the detection electrode is amplified by the amplifying circuit and then fed back to the chip U1;
step five: the chip U1 calculates the time difference S between the sending of a voltage signal and the receiving of the amplified voltage signal, and calculates the speed of the fluid;
step six: the chip U1 displays the calculated related data on the liquid crystal display 6.
As a further limitation of the present technical solution, a calculation formula of the fluid velocity V in the step five is as follows:
wherein: d is the distance between the electric field electrode and the detection electrode.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the charge electrode and the detection electrode are not contacted with the fluid, so that the measured fluid can not generate negative effect on the detection electrode, and the reliable operation of the flowmeter is ensured.
2. The invention has high measurement precision, good linearity and wide measurement range, can measure fluid, strong acid, strong base, strong oxidant and the like containing a large amount of silt, and can work normally at small flow.
3. The invention has the advantages of simple structure, convenient production, good instrument linearity, low cost, long service life and easy industrialized production, and can be widely applied to the measurement of various fluids.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an electrical schematic of the present invention.
In the figure: 1. the device comprises a flowmeter shell, 2 electric field electrodes, 3 detection electrodes, 4 amplification circuits, 5 a single chip microcomputer, 6 a liquid crystal display, 7 and a lithium metal battery.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
As shown in fig. 1-2, the present invention includes a flowmeter housing 1, an electric field electrode 2 and a detection electrode 3, wherein the electric field electrode 2 is vertically installed on an outer wall of the flowmeter housing 1, the detection electrode 3 and the electric field electrode 2 are on the same horizontal plane, and the detection electrode 3 is vertically installed on the outer wall of the flowmeter housing 1.
The flowmeter shell 1 is fixedly connected with a liquid crystal display 6, the liquid crystal display 6 is internally and fixedly connected with a single chip microcomputer 5, and a lithium metal battery 7 is arranged in the liquid crystal display 6.
The single chip 5 comprises a chip U1, and pins 12 to 39, 44, 45 and 48 to 55 of the U1 are electrically connected to the liquid crystal display 6 respectively.
The pin 4 of the U1 is electrically connected to the amplifying circuit 4, and the amplifying circuit 4 is electrically connected to the detecting electrode 3.
The amplifying circuit 4 comprises an integrated operational amplifier, a pin 4 of the U1 is electrically connected to a pin 1 of the integrated operational amplifier and one end of a resistor R2, a pin 3 of the integrated operational amplifier is electrically connected to the detection electrode 3, a pin 2 of the integrated operational amplifier is electrically connected to the detection electrode 3 and one end of a resistor R1, and the other ends of the resistor R1 and the resistor R2 are respectively grounded.
The pin 11 of the chip U1 is electrically connected with one end of a resistor R3, the other end of the resistor R3 is electrically connected with a pin 1 of an optical coupler, a pin 3 of the optical coupler is electrically connected with the electric field electrode 2 and one end of a resistor R4, and the pin 2 of the optical coupler, the electric field electrode 2 and the other end of the resistor R4 are respectively grounded.
The pin 64 of the U1 is electrically connected to the lithium metal battery 7.
A charge flow metering method comprising the steps of:
the method comprises the following steps: installing a charge flow meter on a pipeline to be tested;
step two: the chip U1 sends out a voltage signal, the photoelectric coupler is conducted, an electric field is formed on the two electrodes of the electric field electrode 2, and the fluid flowing in the flowmeter shell 1 obtains the electric charge generated by the electric field electrode 2, so that the fluid carrying the electric charge is obtained;
step three: when the fluid carrying electric charges passes through the detection electrode 3, the detection electrode 3 detects the electric charges of the fluid, and the electric charge signal generates a voltage signal on the detection electrode 3;
step four: the voltage signal generated by the detection electrode 3 is amplified by the amplifying circuit 4 and then fed back to the chip U1;
step five: the chip U1 calculates the time difference S between the sending of a voltage signal and the receiving of the amplified voltage signal, and calculates the speed of the fluid;
step six: the chip U1 displays the calculated related data on the liquid crystal display 6.
The calculation formula of the fluid velocity V in the step five is as follows:
wherein: d is the distance between the electric field electrode and the detection electrode.
The flowmeter housing 1 is made of a non-conductive material.
The model of the chip U1 is MSP430F 4152.
The integrated operational amplifier is of the model number TL 062C.
The optocoupler is of the type PC 817.
The working process of the invention is as follows: and mounting the charge flow meter on the pipeline to be tested.
The chip U1 sends out a voltage signal, the photoelectric coupler is conducted, an electric field is formed on the two electrodes of the electric field electrode 2, and the fluid flowing in the flowmeter shell 1 obtains the electric charges generated by the electric field electrode 2, so that the fluid carrying the electric charges is obtained. When the fluid carrying the electric charges passes through the detection electrode 3, the detection electrode 3 detects the electric charges of the fluid, and the electric charges signal generates a voltage signal on the detection electrode 3. The voltage signal generated by the detection electrode 3 is amplified by the amplifying circuit 4 and then fed back to the chip U1. The chip U1 calculates the time difference between the emission of a voltage signal and the receipt of the amplified voltage signal, and calculates the velocity of the fluid. The chip U1 displays the calculated related data on the liquid crystal display 6.
The above disclosure is only for the specific embodiment of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.
Claims (9)
1. The utility model provides a charge flowmeter, includes flowmeter casing (1), electric field electrode (2) and detecting electrode (3), its characterized in that:
the electric field electrode (2) is vertically arranged on the outer wall of the flowmeter shell (1);
the detection electrode (3) and the electric field electrode (2) are on the same horizontal plane, and the detection electrode (3) is vertically arranged on the outer wall of the flowmeter shell (1).
2. The electrical charge flow meter of claim 1, wherein: flowmeter casing (1) fixed connection LCD (6), fixed connection singlechip (5) in LCD (6), install lithium metal battery (7) in LCD (6).
3. The electrical charge flow meter of claim 2, wherein: the single chip microcomputer (5) comprises a chip U1, and pins 12 to 39, 44, 45 and 48 to 55 of the U1 are respectively and electrically connected with the liquid crystal display (6).
4. The electrical charge flow meter of claim 3, wherein: and the pin 4 of the U1 is electrically connected with an amplifying circuit (4), and the amplifying circuit (4) is electrically connected with the detection electrode (3).
5. The electrical charge flow meter of claim 4, wherein: the amplifying circuit (4) comprises an integrated operational amplifier, a pin 4 of the U1 is electrically connected with a pin 1 of the integrated operational amplifier and one end of a resistor R2, a pin 3 of the integrated operational amplifier is electrically connected with the detection electrode (3), a pin 2 of the integrated operational amplifier is electrically connected with the detection electrode (3) and one end of a resistor R1, and the other ends of the resistor R1 and the resistor R2 are respectively grounded.
6. The electrical charge flow meter of claim 3, wherein: the pin 11 of the chip U1 is electrically connected with one end of a resistor R3, the other end of the resistor R3 is electrically connected with a pin 1 of an optical coupler, a pin 3 of the optical coupler is electrically connected with the electric field electrode (2) and one end of a resistor R4, and the pin 2 of the optical coupler, the electric field electrode (2) and the other end of the resistor R4 are respectively grounded.
7. The electrical charge flow meter of claim 6, wherein: the pin 64 of the U1 is electrically connected with the lithium metal battery (7).
8. The charge flow metering method of claim 1, comprising the steps of:
the method comprises the following steps: installing a charge flow meter on a pipeline to be tested;
step two: the chip U1 sends out a voltage signal, the photoelectric coupler is conducted, an electric field is formed on two electrodes of the electric field electrode (2), and fluid flowing in the flowmeter shell (1) obtains electric charges generated by the electric field electrode (2), so that fluid carrying electric charges is obtained;
step three: when the fluid carrying electric charges passes through the detection electrode (3), the detection electrode (3) detects the electric charges of the fluid, and the electric charge signal generates a voltage signal on the detection electrode (3);
step four: the voltage signal generated by the detection electrode (3) is amplified by the amplifying circuit (4) and then fed back to the chip U1;
step five: the chip U1 calculates the time difference S between the sending of a voltage signal and the receiving of the amplified voltage signal, and calculates the speed of the fluid;
step six: the chip U1 displays the calculated related data on the liquid crystal display 6.
9. The charge flow metering method of claim 8, wherein: the calculation formula of the fluid velocity V in the step five is as follows:
wherein: d is the distance between the electric field electrode and the detection electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538057.7A CN113252122A (en) | 2021-05-18 | 2021-05-18 | Charge flowmeter and flow metering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538057.7A CN113252122A (en) | 2021-05-18 | 2021-05-18 | Charge flowmeter and flow metering method |
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| Publication Number | Publication Date |
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| CN113252122A true CN113252122A (en) | 2021-08-13 |
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| CN202110538057.7A Pending CN113252122A (en) | 2021-05-18 | 2021-05-18 | Charge flowmeter and flow metering method |
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| CN (1) | CN113252122A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166305A (en) * | 2021-11-19 | 2022-03-11 | 新美鑫智能装备(东台)有限公司 | Metering device and method for non-standard conveying equipment |
Citations (7)
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| JP2004219372A (en) * | 2003-01-17 | 2004-08-05 | Yokogawa Electric Corp | Electromagnetic flowmeter |
| CN101038190A (en) * | 2006-03-13 | 2007-09-19 | 杜豫生 | Method and device for detecting micro-charge type online dust and detector pollution |
| CN101897066A (en) * | 2007-12-12 | 2010-11-24 | 佛罗里达大学研究基金公司 | The electric-field enhanced performance of catalytic action and the solid-state device of air inclusion |
| CN103439528A (en) * | 2013-09-16 | 2013-12-11 | 中国矿业大学(北京) | Method and device for measuring flow speed of dense paste based on electromagnetic signal cross correlation |
| CN104322473A (en) * | 2014-11-05 | 2015-02-04 | 乐山师范学院 | Ultrasonic-atomization microdose sprayer |
| CN110470353A (en) * | 2019-07-30 | 2019-11-19 | 电子科技大学 | A kind of electromagnetic flow-measurement device based on related algorithm |
| CN209945431U (en) * | 2019-07-26 | 2020-01-14 | 山东科尔自动化仪表股份有限公司 | Anti-vibration vortex street flowmeter |
-
2021
- 2021-05-18 CN CN202110538057.7A patent/CN113252122A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004219372A (en) * | 2003-01-17 | 2004-08-05 | Yokogawa Electric Corp | Electromagnetic flowmeter |
| CN101038190A (en) * | 2006-03-13 | 2007-09-19 | 杜豫生 | Method and device for detecting micro-charge type online dust and detector pollution |
| CN101897066A (en) * | 2007-12-12 | 2010-11-24 | 佛罗里达大学研究基金公司 | The electric-field enhanced performance of catalytic action and the solid-state device of air inclusion |
| CN103439528A (en) * | 2013-09-16 | 2013-12-11 | 中国矿业大学(北京) | Method and device for measuring flow speed of dense paste based on electromagnetic signal cross correlation |
| CN104322473A (en) * | 2014-11-05 | 2015-02-04 | 乐山师范学院 | Ultrasonic-atomization microdose sprayer |
| CN209945431U (en) * | 2019-07-26 | 2020-01-14 | 山东科尔自动化仪表股份有限公司 | Anti-vibration vortex street flowmeter |
| CN110470353A (en) * | 2019-07-30 | 2019-11-19 | 电子科技大学 | A kind of electromagnetic flow-measurement device based on related algorithm |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166305A (en) * | 2021-11-19 | 2022-03-11 | 新美鑫智能装备(东台)有限公司 | Metering device and method for non-standard conveying equipment |
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Application publication date: 20210813 |
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