CN207937012U - A kind of intelligent Turbine Flowmeter circuit on refueling nozzle - Google Patents

Abstract

This application involves measuring equipment technical field, specially a kind of intelligent Turbine Flowmeter circuits on refueling nozzle.The utility model is made of independent microcontroller (MCU) circuit and liquid crystal display (LTRCD1) circuit, and it be program download mouth position, J2 and J3 be battery tray position, 24C02 be power down storage chip, LTR1 be inductance coil sensing station, VD1 is general-purpose diode that it, which includes display module (LTRCD1), micro-control unit (MCU), first resistor to thirteenth resistor, the first button, the second button, the first capacitance to the 6th capacitance, J1,.The utility model is simple and reasonable, can intuitively check that the flow of liquid crystal (LTRCD1) above rises number, unit shows that push-botton operation is simple, easy to use.

Description

A kind of intelligent Turbine Flowmeter circuit on refueling nozzle

Technical field

This application involves measuring equipment technical field, specially a kind of intelligent Turbine Flowmeter electricity on refueling nozzle Road.

Background technology

Since economical production falls behind, until the main flow meter used in twentieth century generation, industry also only has orifice flow Meter, pitot tube flowmeter, suspended body flowmeter, pointer flowmeter, mechanical flowmeter.

Fluid to be measured must be full of closed conduct in the prior art, otherwise can measurement accuracy be reduced, for that cannot fill The liquid in full packages road, have certain error so that practical performance substantially reduces, at the same when enclosure interior parts need into Row repair and cleaning when, dismounting installation it is more complicated, the display screen of another aspect flowmeter is all uprightly arranged, carry and It is unfavorable for the keeping of equipment during transport, it is inconvenient to carry, it be easy to cause the damage of display screen.

As industrial production is more automated, the requirement to fluid flow detection technique is also higher and higher.To solve to produce In liquid measure problem, be on the one hand to use new liquid measure principle, develop new fluid flow detection instrument, expand inspection On the other hand the means of survey need to develop towards Microcomputer and intelligentized direction is realized.

In recent years, the fast development of microelectric technique makes fluid flow detection technique that essence variation have occurred.New The application of testing principle and electronic unit makes fluid flowmeter more towards miniaturization and micromation, especially some small-sized scenes Fluid flow development is exceedingly fast.Fluid flow detection is also just developing towards intelligent direction, in field of liquid flow measurement extensively Using microprocessing, to realize fault diagnosis and warning function, accuracy, reliability, safety and the more work(of measurement are improved Energyization.Realize that contactless type or impermeable formula measure as possible applying and designing fluid flow timing.

With popularizing for computer application, the digitlization liquid flow sensor of direct output digit signals has become this The development trend of field instrument；With the development of nanotechnology, biotechnology, nanotechnology and biotechnology are in liquid flow Application in measurement also will be increasing.

Generally speaking, fluid flowmeter will be towards micromation, high-precision, applied widely, low-power consumption, intelligent direction Development.

Utility model content

There is problem for the above-mentioned prior art, the utility model provides a kind of intelligent turbine flow on refueling nozzle Gauge circuit, to solve the problems, such as above-mentioned background technology, this circuit structure provided by the utility model is simple, detection Precisely, dismounting is easy for installation, and easy to carry, easy to operate, Intelligent-counting is more accurate, more practical, more intuitively.

For this purpose, the utility model provides following technical proposals：A kind of intelligent Turbine Flowmeter on refueling nozzle Circuit, it is characterised in that：The circuit include display module LTRCD1, single-chip microprocessor MCU,

Program downloads mouth J1, battery socket J2 and J3, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11st Resistance R11, twelfth resistor R12, thirteenth resistor R13, the first capacitance C1, the second capacitance C2, third capacitance C3, the 4th capacitance It is C4, the 5th capacitance C5, the 6th capacitance C6, the 7th capacitance C7, the 8th capacitance C8, the 9th capacitance C9, power down storage chip IC2, general Logical diode VD1, inductance coil sensor LTR1, the first button S1, the second button S2；

The battery socket J2 and J3 be connected with the first capacitance C1 mains input power source VDD and ground GND；

Described program downloads mouth J1, general-purpose diode VD1 programming high level input pins and the both ends third capacitance C3 difference Meet power vd D and ground GND；One end of the power down storage chip IC2, the first capacitance C4, second resistance R2,3rd resistor R3, 4th resistance R4, one end of the first button S1, the 6th resistance R6, one end of the second button S2, the 5th resistance R5, display module LTRCD1 and amplifier IC3A exports 1 foot and is connected with micro-control unit (MCU)；

One end of the first resistor R1 is connected with power vd D；

One end of the second capacitance C2 is connected with ground GND；

The other end of the first resistor R1 and the second capacitance C2 are connected with diode VD1；

The other end and the 4th capacitance C4 of the power down storage chip IC2 meets power vd D and ground GND respectively；

The 5th resistance R5 and the 6th resistance R6 is connected with power vd D；

The other end of the first button S1 and the second button S2 are all grounded GND and are connected；

One end of the inductance coil sensor LTR1 is connected with the 6th capacitance C6；The other end is connected with the 9th resistance R9；

The 9th resistance R9 other ends input 5 feet with amplifier IC3B and are connected；The amplifier IC3B inputs 5 feet also with the Seven resistance R7 and the 5th capacitance C5 are connected；

7th resistance R7 and the 5th capacitance C5 other ends export 1 foot with amplifier IC3B and are connected；Amplifier IC3B exports 1 foot also It is connected with the tenth resistance R10；The tenth resistance R10 other ends input 2 feet with amplifier IB3A and are also connected with the 8th resistance R8；The The eight resistance R8 other ends are connected with amplifier IC3A 1 feet of output to be input on micro-control unit MCU；Inductance coil sensor LTR1 The other end inputs 6 feet, one end of eleventh resistor R11, one end of the 9th capacitance C9 and twelfth resistor with amplifier IC3B respectively One end of R12 is connected；Another termination power vd D of eleventh resistor R11；

The 9th capacitance C9 other ends are grounded GND；The twelfth resistor R12 other ends respectively with one end of thirteenth resistor R13, One end of 8th capacitance C8 inputs 3 feet with amplifier ICA3 and is connected；Thirteenth resistor R13 and the 8th capacitance C8 other ends are all grounded GND。

Further, the power down storage chip IC2 models 24C02.

Further, the first button S1 is reset key.

Further, the second button S2 is that total integrated flow and flow velocity switch select button.

Further, the inductance coil sensor LTR1 is sent to the list later for acquiring external signal and counting Piece machine MCU.

Further, the third capacitance C3 is filter capacitor.

Further, the display module LTRCD1 is liquid crystal display.

Technical solution provided by the present application includes following advantageous effects：The utility model on refueling nozzle by installing Turbine flowmeter；The data processing of metering and display module are acquired in data to be inputted, and data-handling efficiency is improved, and is improved data and is adopted The accuracy of collection；The device can calculate the quality of fluid, keep metering more accurate by the mutual cooperation between element, And on certain depth, reduce data processing, the service life for improving battery supply is long.It is provided by the utility model this Flowmeter electronics are simple and reasonable, can intuitively check that the flow of liquid crystal (LTRCD1) above rises number, and unit is shown, button behaviour Make simply, it is easy to use.

Description of the drawings

In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor, Other drawings may also be obtained based on these drawings.

Fig. 1 is a kind of circuit knot of intelligent Turbine Flowmeter circuit on refueling nozzle provided by the embodiments of the present application Structure schematic diagram.

Fig. 2 is a kind of microcontroller of intelligent Turbine Flowmeter circuit on refueling nozzle provided by the embodiments of the present application MCU structural schematic diagrams.

Fig. 3 is a kind of display mould of intelligent Turbine Flowmeter circuit on refueling nozzle provided by the embodiments of the present application Block electrical block diagram.

Fig. 4 is a kind of other electricity of intelligent Turbine Flowmeter circuit on refueling nozzle provided by the embodiments of the present application Line structure schematic diagram.

Reference sign：

J2 and J3:Battery tray C1:First capacitance J1:Program downloads mouth C2:Second capacitance

R1:First resistor VD1:General-purpose diode C4:4th capacitance C3:Third capacitance

IC1:240C02 power down stores core R2:Second resistance R3:3rd resistor R4:4th resistance

R5:5th resistance R6:6th resistance S1A:First button S2A:Second button

MCU:Micro-control unit LTRCD1:Show module LTR1:Inductance coil sensor

C6:Tantalum capacitance R9:9th resistance R7:7th resistance C5:5th capacitance

ICB3 and ICA3：Amplifier chip R10:Tenth resistance R8:8th resistance

R11:Eleventh resistor C9:9th capacitance R12:Twelfth resistor R13:Thirteenth resistor

C8:8th capacitance C7:7th capacitance

Specific implementation mode

The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application Example, and the principle together with specification for explaining the application.

In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art Speech, without creative efforts, other drawings may also be obtained based on these drawings.

As shown in Figs 1-4,：A kind of intelligent Turbine Flowmeter circuit on refueling nozzle, it is characterised in that：The electricity Road include display module LTRCD1, single-chip microprocessor MCU,

Program downloads mouth J1, battery socket J2 and J3, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11st Resistance R11, twelfth resistor R12, thirteenth resistor R13, the first capacitance C1, the second capacitance C2, third capacitance C3, the 4th capacitance It is C4, the 5th capacitance C5, the 6th capacitance C6, the 7th capacitance C7, the 8th capacitance C8, the 9th capacitance C9, power down storage chip IC2, general Logical diode VD1, inductance coil sensor LTR1, the first button S1, the second button S2；

The battery socket J2 and J3 be connected with the first capacitance C1 mains input power source VDD and ground GND；

Described program downloads mouth J1, general-purpose diode VD1 programming high level input pins and the both ends third capacitance C3 difference Meet power vd D and ground GND；One end of the power down storage chip IC2, the first capacitance C4, second resistance R2,3rd resistor R3, 4th resistance R4, one end of the first button S1, the 6th resistance R6, one end of the second button S2, the 5th resistance R5, display module LTRCD1 and amplifier IC3A exports 1 foot and is connected with micro-control unit (MCU)；

One end of the first resistor R1 is connected with power vd D；

One end of the second capacitance C2 is connected with ground GND；

The other end of the first resistor R1 and the second capacitance C2 are connected with diode VD1；

The other end and the 4th capacitance C4 of the power down storage chip IC2 meets power vd D and ground GND respectively；

The 5th resistance R5 and the 6th resistance R6 is connected with power vd D；

The other end of the first button S1 and the second button S2 are all grounded GND and are connected；

One end of the inductance coil sensor LTR1 is connected with the 6th capacitance C6；The other end is connected with the 9th resistance R9；

The 9th resistance R9 other ends input 5 feet with amplifier IC3B and are connected；The amplifier IC3B inputs 5 feet also with the Seven resistance R7 and the 5th capacitance C5 are connected；

7th resistance R7 and the 5th capacitance C5 other ends export 1 foot with amplifier IC3B and are connected；Amplifier IC3B exports 1 foot also It is connected with the tenth resistance R10；The tenth resistance R10 other ends input 2 feet with amplifier IB3A and are also connected with the 8th resistance R8；The The eight resistance R8 other ends are connected with amplifier IC3A 1 feet of output to be input on micro-control unit MCU；Inductance coil sensor LTR1 The other end inputs 6 feet, one end of eleventh resistor R11, one end of the 9th capacitance C9 and twelfth resistor with amplifier IC3B respectively One end of R12 is connected；Another termination power vd D of eleventh resistor R11；

The 9th capacitance C9 other ends are grounded GND；The twelfth resistor R12 other ends respectively with one end of thirteenth resistor R13, One end of 8th capacitance C8 inputs 3 feet with amplifier ICA3 and is connected；Thirteenth resistor R13 and the 8th capacitance C8 other ends are all grounded GND。

Specifically, the display module is mainly used for showing the number that liquid crystal is read on LTRCD1, it to be used for display data Liquid crystal display, memory device, the peripheral components of information and control information, LTRCD1 display screens are low in energy consumption, can show uninterrupted Related data.

One as the present embodiment technical solution improves greatly, the power down storage chip IC2 models 24C02.

One as the present embodiment technical solution improves greatly, and the first button S1 is reset key.

One as the present embodiment technical solution improves greatly, and the second button S2 is total integrated flow and flow velocity switching choosing Select button.

One as the present embodiment technical solution improves greatly, and the inductance coil sensor LTR1 is for acquiring external signal And it is sent to the single-chip microprocessor MCU after counting.

One as the present embodiment technical solution improves greatly, and the third capacitance C3 is filter capacitor.

One as the present embodiment technical solution improves greatly, and the display module LTRCD1 is liquid crystal display.

The present embodiment uses technical grade component, adaptable；Using digital processing technology, Product Precision is high；Product from All the safeguard procedures such as multiple filter is used effectively to inhibit noise on hardware to software, electromagnetism interference.

Particularly, flow refers to the amount of fluid that pipeline effective cross-section is flowed through in the unit interval, amount of fluid volume It indicates to be known as volume flow, l/h etc..

Currently, flowmeter is a kind of velocity-type measuring instrumentss, since its is simple in structure, precision is high, and measurement range is wide, It is small, it is easy to maintenance the advantages that.It is widely used in oil, chemical industry, medicine, traffic, food wait in industry and business.

Flowmeter is exactly a kind of instrument for measuring fluid flow in pipeline or open channel in simple terms, is commonly used in engineering single Position rises (L), it can be divided into instantaneous flow (Flow Rate) and integrated flow (Total), crosses and seals in instantaneous flow, that is, unit interval The flow in stopped pipe road or open channel, integrated flow be in institute's having time liquid flow through the total of closed conduct or open channel effective cross-section Cumulative amount.

Specifically, the circuit function realizes that process is as follows：

First, when using flowmeter metering work, first by metering display zero；Secondly, inductance coil sensor (LTR1) external pulse signal input is shown on liquid crystal display；It finally, can by liquid crystal (LTRCD1) display screen after counting Directly to find out added oil volume (LTR).

Measurement unit is arranged

Under standby mode or current adding amount dispaly state, the first button of long-press (S1A) key 5 seconds.Turn into unit Setting is changed, the first button (S1A) is pressed, LTRTR → GALTR → PT → QT → LTRTR selection measurement units is shown successively, tires out simultaneously Meter adding amount is shown after converting according to current measurement unit.The second button (S2) is pressed again 3 seconds or 5 seconds can move back automatically Go out Conversion of measurement unit setting.

Flow is resetted to reset

Long-press presses the first button (S1A), and LTRCD1 displays all over the screen, after waiting for display all over the screen, the first button is pressed in release (S1A), current liquid crystal display 0. 00.

Dispaly state switches

Under standby mode or current adding amount dispaly state, the second button of short-press (S2A) can be with actual flow and always tired Count switching display.

Error coefficient is inquired

In the standby state, while the+the second button of the first button (S1A) (S2A), liquid crystal (LTRCD1) display error being pressed Coefficient.

The effect of the utility model is：It is installed by turbine flowmeter；The data processing of metering and display module are in data Acquisition input, improves data-handling efficiency, improves the accuracy of data acquisition；The device can pass through the phase interworking between element It closes, calculates the quality of fluid, keep metering more accurate, and on certain depth, reduce data processing, improve battery electricity The service life in source is long.

This flowmeter electronics provided in this embodiment have the characteristics that：

1. pinpoint accuracy, general reachable ± 1%R, ± 0.5%R, the reachable ± 0.2%R of high-precision degree type；

2. reproducible, short-term repeatability, just because of with good repeatability, is such as passed through up to 0.05%~0.2% Often high accuracy can be obtained in calibration or on-line calibration, is the flowmeter preferentially selected in trade settlement；

3. Output pulse frequency signal is suitable for total amount and measures and connect with computer, inferred-zero drift, anti-interference ability By force；

4. can get very high frequency signal (3~4kHz), signal resolution power is strong；

5. advantages of compact and light structure, convenient for installation and maintenance, negotiability is big；

6. applicable high-tension measurement, on meter body need not trepanning, high-pressure type instrument is easily made；

7. tailored version sensor type is more, all kinds of tailored version sensors can be designed as according to user's special requirement, such as low Warm type, two-way type, downhole-type, mulling tailored version etc.；

8. can be made into insert type, it is suitable for heavy caliber and measures, the pressure loss is small, and price is low, and can not stop taking-up, installation dimension Shield is convenient.

In use, the wiring board storage place where the circuit should meet the following conditions：

1. Rainproof moisture-proof.

2. not by mechanical shock or impact.

3. -20 DEG C~+55 DEG C of temperature range.

4. relative humidity is not more than 80%.

5. being free of corrosive gas in environment.

The display mode of the corresponding liquid crystal display of the display module is single liquid crystal display, and mode is as follows：

Five integrated flows (LTR) of XXX.XX

The circuit system low-power consumption work：Two No. 7 batteries of section can be used continuously 2 years or more.

The circuit has further the advantage that：

(1) integrated flow：Automatic to expand display precision, integrated flow value can be reset.

(2) instrument coefficient：Scene can be placed in.

(3) power down protection：Instrument coefficient, integrated flow value power down keep not losing for 10 years.

To sum up, the effect of the present embodiment is：By installing flowmeter on refueling nozzle；Data processing in metering gun And display module is acquired in data and is inputted, and improves data-handling efficiency, improves the accuracy of data acquisition；The device can pass through Mutual cooperation between element calculates the quality of fluid, keeps volume read-out more accurate, and on certain depth, reduces Data processing improves the service life of refueling nozzle power supply.

It should be noted that the relational terms of such as " first " and " second " or the like be used merely to an entity or Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive Property include but also include not having so that article or equipment including a series of elements include not only those elements The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device.Do not having There is the element limited by sentence "including a ..." in the case of more limiting, it is not excluded that in the mistake for including the element There is also other identical elements in journey, method, article or equipment.

The above is only the specific implementation mode of the application, is made skilled artisans appreciate that or realizing this Shen Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein General Principle can in other embodiments be realized in the case where not departing from spirit herein or range.Therefore, the application It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest range caused.

It should be understood that the application is not limited to the content for being described above and being shown in the accompanying drawings, and can To carry out various modifications and change without departing from the scope.Scope of the present application is only limited by the accompanying claims.

Claims (7)

1. a kind of intelligent Turbine Flowmeter circuit on refueling nozzle, it is characterised in that：The circuit includes display module LTRCD1, single-chip microprocessor MCU, program download mouth J1, battery socket J2 and J3, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, the first capacitance C1, the second capacitance C2, third capacitance C3, the 4th capacitance C4, the 5th capacitance C5, the 6th capacitance C6, the 7th capacitance C7, the 8th capacitance C8, the 9th capacitance C9, power down storage Chip IC 2, general-purpose diode VD1, inductance coil sensor LTR1, the first button S1, the second button S2；

The battery socket J2 and J3 be connected with the first capacitance C1 mains input power source VDD and ground GND；

Described program downloads mouth J1, and general-purpose diode VD1 programming high level input pins and the both ends third capacitance C3 connect electricity respectively Source VDD and ground GND；One end of the power down storage chip IC2, the first capacitance C4, second resistance R2,3rd resistor R3, the 4th Resistance R4, one end of the first button S1, the 6th resistance R6, one end of the second button S2, the 5th resistance R5, display module LTRCD1 1 foot is exported with amplifier IC3A to be connected with micro-control unit (MCU)；

One end of the first resistor R1 is connected with power vd D；

One end of the second capacitance C2 is connected with ground GND；

The other end of the first resistor R1 and the second capacitance C2 are connected with diode VD1；

The other end and the 4th capacitance C4 of the power down storage chip IC2 meets power vd D and ground GND respectively；

The 5th resistance R5 and the 6th resistance R6 is connected with power vd D；

The other end of the first button S1 and the second button S2 are all grounded GND and are connected；

One end of the inductance coil sensor LTR1 is connected with the 6th capacitance C6；The other end is connected with the 9th resistance R9；

The 9th resistance R9 other ends input 5 feet with amplifier IC3B and are connected；It is also electric with the 7th that the amplifier IC3B inputs 5 feet Resistance R7 and the 5th capacitance C5 is connected；

7th resistance R7 and the 5th capacitance C5 other ends export 1 foot with amplifier IC3B and are connected；Amplifier IC3B exports 1 foot also with the Ten resistance R10 are connected；The tenth resistance R10 other ends input 2 feet with amplifier IB3A and are also connected with the 8th resistance R8；8th electricity The resistance R8 other ends are connected with amplifier IC3A 1 feet of output to be input on micro-control unit MCU；Inductance coil sensor LTR1 is another End inputs 6 feet, one end of eleventh resistor R11, one end of the 9th capacitance C9 and twelfth resistor R12 with amplifier IC3B respectively One end is connected；Another termination power vd D of eleventh resistor R11；

The 9th capacitance C9 other ends are grounded GND；The twelfth resistor R12 other ends respectively with one end of thirteenth resistor R13, the 8th One end of capacitance C8 inputs 3 feet with amplifier ICA3 and is connected；Thirteenth resistor R13 and the 8th capacitance C8 other ends are all grounded GND.

2. a kind of intelligent Turbine Flowmeter circuit on refueling nozzle according to claim 1, it is characterised in that：Institute State power down storage chip IC2 models 24C02.

3. a kind of intelligent Turbine Flowmeter circuit on refueling nozzle according to claim 1, it is characterised in that：Institute It is reset key to state the first button S1.

4. a kind of intelligent Turbine Flowmeter circuit on refueling nozzle according to claim 1, it is characterised in that：Institute It is that total integrated flow and flow velocity switch select button to state the second button S2.

5. a kind of intelligent Turbine Flowmeter circuit on refueling nozzle according to claim 1, it is characterised in that：Institute It states inductance coil sensor LTR1 and is sent to the single-chip microprocessor MCU later for acquiring external signal and counting.

6. a kind of intelligent Turbine Flowmeter circuit on refueling nozzle according to claim 1, it is characterised in that：Institute It is filter capacitor to state third capacitance C3.

7. a kind of intelligent Turbine Flowmeter circuit on refueling nozzle according to claim 1, it is characterised in that：Institute It is liquid crystal display to state display module LTRCD1.