CN107507345A - A kind of liquid flow mearuement system and method - Google Patents
A kind of liquid flow mearuement system and method Download PDFInfo
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- CN107507345A CN107507345A CN201710707822.7A CN201710707822A CN107507345A CN 107507345 A CN107507345 A CN 107507345A CN 201710707822 A CN201710707822 A CN 201710707822A CN 107507345 A CN107507345 A CN 107507345A
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- liquid
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- weight
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- feed flow
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F13/00—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs
- G07F13/02—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs by volume
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F13/00—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs
- G07F13/04—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs by weight
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- General Physics & Mathematics (AREA)
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Abstract
The present invention discloses a kind of liquid flow mearuement system, including：Control system, for receiving feed flow signal, liquid module is taken according to feed flow signal control；Liquid module is taken, for providing gas, is sent out the liquid in liquid storage module by air pressure；Detection module, for detecting the air pressure, the liquid volume or weight sent out are calculated according to the pressure；When the liquid volume or weight of submitting reach the requirement of the feed flow signal, the control system is additionally operable to make described to take liquid module stop liquid to send out, a kind of metering method based on the liquid flow mearuement system is also disclosed in the application, the liquid volume or weight of submitting are calculated by measuring pressure, is integrated in pumping gas and is gone out by pressure in the pipeline of liquid, weighing sensor is set without extra, with compact-sized, the advantages of measurement is accurate, cost-effective, and operating method is easily simple.
Description
Technical field
The present invention relates to fluid flow calculate system and method, and in particular to one kind apply wine selling machine, wine dispenser or its
Liquid flow mearuement system and method on his liquid sale terminal.
Background technology
Automatic selling liquid machine is a kind of automatic vending machine that can go out liquid, and existing automatic selling liquid machine includes liquid discharge device, is led to
To cross liquid discharge device and liquid is supplied into buyer, existing automatic selling liquid machine is weighed by weighing sensor to the liquid sold,
When taking the vessel of liquid to be not arranged on weighing sensor, just smoothly the liquid sold can not be weighed, therefore to using
There is certain operation requirement in person, ordinary consumer can be because improper operation causes the weight for consuming obtained wine to be differed with setting
It is larger.
The content of the invention
In view of this, the application provides a kind of liquid flow mearuement system and method, is integrated in pumping gas and passes through pressure
Go out in the pipeline of liquid, weighing sensor be set without extra, have compact-sized, measurement is accurate, it is cost-effective the advantages of；Simultaneously
When avoiding by flow sensor measurement liquid volume or weight, the change of flow speed easily causes measurement error larger
Problem, there is the advantages of measurement accuracy is high, and operating method is easily simple.
To solve above technical problem, technical scheme provided by the invention is a kind of liquid flow mearuement system, including：
Control system, for receiving feed flow signal, liquid module is taken according to feed flow signal control；
Liquid module is taken, for providing gas, is sent out the liquid in liquid storage module by air pressure；
Detection module, for detecting the air pressure, the liquid volume or weight sent out are calculated according to the pressure；
When the liquid volume or weight of submitting reach the requirement of the feed flow signal, the control system is additionally operable to make institute
State and take liquid module stop liquid to send out.
Preferably, the feed flow signal is equipped with liquid volume or weight information, and liquid category information.
Preferably, described to take liquid module to include supply module, the supply module is passed through the storage by the first pipeline
Liquid module, and the end of the first pipeline is located at the top of liquid level in the liquid storage module, the supply module is used for the storage
Fixed pressure, the nitrogen or inert gas of fixed concentration are provided in liquid module.
Preferably, the detection module is specially a kind of pressure sensor, for being taken described in detection in real time in liquid module
The air pressure, and for the atmospheric pressure value of detection to be sent to the control system.
Preferably, the control system also includes data memory module, and the data memory module is used for according to different liquid
Body classification is pre-stored with the physical characteristic information and experimental data of respective liquid, and the control system is used for the gas of the detection
Pressure value compares with corresponding physical characteristic information and experimental data, the liquid volume or weight sent out.
Preferably, the introduced below of liquid level has the second pipeline in the liquid storage module, and the other end of second pipeline is
Positioned at the liquid outlet of liquid storage module-external, switch element is provided with second pipeline.
Preferably, the switch element is electrically connects the two-position two-way solenoid valve of the control system, the switch element
For：
Opened when the control system receives the metering signal, make to take liquid module to send out liquid by air pressure；
Closed when the liquid capacity or weight of submitting reach the requirement of the metering signal, make described to take liquid module to stop
Liquid is sent out.
A kind of liquid flow mearuement method, including：
1) feed flow signal is received；
2) gas is provided to liquid storage module according to feed flow signal, is sent out the liquid in liquid storage module by air pressure；
3) air pressure is detected, the liquid volume or weight sent out are calculated according to the value of the air pressure；
4) when the liquid volume or weight of submitting reach the requirement of the feed flow signal, stop liquid is sent out.
Preferably, the step 2) is specially：After the feed flow signal is received, switch element is opened, to the liquid storage
The nitrogen or inert gas of fixation pressure, fixed concentration are passed through in module above liquid level, the liquid in liquid storage module is sent out.
Preferably, the step 3) is specially：The air pressure in liquid module is taken described in detection in real time, according to different liquids classification
The atmospheric pressure value of detection is compared with corresponding physical characteristic information and experimental data, the liquid capacity or weight sent out.
Preferably, the step 4) is specially：When the liquid capacity or weight of submitting reach the requirement of the feed flow signal
When close, stop providing gas or closing switch element to the liquid storage module, stop sending out liquid.
Compared with prior art, its detailed description is as follows by the application：
It is close by conveying certain pressure, fixation into liquid storage module this application discloses a kind of liquid flow mearuement system
The nitrogen or inert gas of degree, liquid is extruded from liquid storage module, due to pipeline structure, it is known that the make-and-break time of switch element
Or the operating time of supply module can be obtained by the signal time difference of control system, nitrogen pressure is obtained by detection module,
Therefore can be calculated by above-mentioned data or liquid volume or weight that control experiment data are transferred out, due to control system
Signal time difference can detect to obtain by circuit module, time control is accurate, and nitrogen pressure can pass through the work(of feeder
Rate or valve opening degree, which freely control, to be adjusted flexibly, and detection module is high to the real-time detection precision of pressure, therefore passes through this
System meters convert obtained liquid volume or weight error is small, and accuracy is high, and by test of many times, accuracy is controlled positive and negative
Within 0.5%, meanwhile, the system is integrated in pumping gas and carried out in the pipeline of feed flow, without it is extra set gage probe or
Weighing device, there is the advantages of compact-sized, saving fraud, good economy performance.
The liquid flow mearuement method carried out using the system, simple with method, component is few, and integrated level is high, metering
The advantages of precision is high, and error is small, meets market actual demand, avoids the problem of error is big, meanwhile, set specially without extra
Door is used for the mechanism weighed, can just carry out taking liquid and metrological operation without container is placed on into specified location, therefore to general
Operation requires low for consumer, and appearance is easy for consumers to accept, has the advantages of market practicality is high.
Brief description of the drawings
Fig. 1 is the structural representation of system；
Fig. 2 is the schematic flow sheet of method.
Embodiment
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real
Applying example, the present invention is described in further detail.
As shown in figure 1, a kind of liquid flow mearuement system, for after system receives feed flow signal, system to start to export
During liquid, the volume or weight of the liquid this time transferred out is measured, the system includes：
Control system 1, for receiving feed flow signal, liquid module 2, the feed flow signal are taken according to feed flow signal control
It is equipped with liquid volume or weight information, the liquid volume or target volume or weight that weight information is output liquid, institute
State feed flow signal and be also equipped with liquid category information, for when in the system plurality of liquid can be supplied, identifying target liq
Classification, and export the liquid for meeting liquid category information；
The control system 1 also includes data memory module 11, and the data memory module 11 is used for according to different liquids
Classification is pre-stored with the physical characteristic information and experimental data of respective liquid；
Liquid module 2 is taken, is same as providing gas, by the pressure output liquid of gas, including：
Module 21 is supplied, for providing gas, the supply module 21 is used to provide fixation into the liquid storage module 23
The nitrogen or inert gas of pressure, fixed concentration, specifically：
The liquid storage module 23 is passed through by the first pipeline 22, and the end of the first pipeline 22 is located at the liquid storage module 23
The top of interior liquid level, the introduced below of liquid level has the second pipeline 24 in the liquid storage module 23, second pipeline 24 it is another
Hold as the liquid outlet outside liquid storage module 23, switch element 25, the switch element are provided with second pipeline 24
25 is electrically connect the two-position two-way solenoid valve of the control system 1, when the control system receives the metering signal two
Two-way electromagnetic valve is opened, and liquid storage module 23 is under the influence of air pressure sent out liquid through the second pipeline 24；
In order to cost-effective, the economic value of the system is improved, supply module 21 is preferably to provide nitrogen, when supplying device module
When 21 gases provided are nitrogen, the supply module 21 can be one kind in nitrogen storage tank or nitrogen preparation facilities；
Detection module 26, specially a kind of pressure sensor, for taking the gas in liquid module 2 described in detection in real time
Pressure, and for the atmospheric pressure value of detection to be sent to the control system 1；
The control system 1 is used for the atmospheric pressure value of the detection and corresponding physical characteristic information and experimental data
Compare, the liquid volume or weight sent out；
When the liquid volume or weight of submitting reach the requirement of the feed flow signal, the control system 1 will switch member
Part 25 is closed, or is closed supply module 21 and stopped providing gas, described to take the stop liquid of liquid module 2 to send out.
A kind of liquid flow mearuement method is also disclosed in the application, including：
1) feed flow signal is received；
2) after the feed flow signal is received, switch element 25 is opened, the top of liquid level leads into the liquid storage module 23
Enter the nitrogen or inert gas of fixation pressure, fixed concentration, the liquid in liquid storage module 23 is sent out；
3) air pressure in liquid module 2 is taken described in detection in real time, according to different liquids classification by the atmospheric pressure value of detection and accordingly
Physical characteristic information and experimental data compare, the liquid volume or weight sent out；
4) when the liquid capacity or weight of submitting reach the requirement of the feed flow signal, stop to the liquid storage module 23
Gas or closing switch element 25 are provided, stop sending out liquid.
As a kind of preferred scheme of this metering method, including：
1) control system 1 receives feed flow signal, and the feed flow signal can be to sell to generate by being physically contacted in liquid terminal
Electric signal, or the wireless signal of control system 1 is transmitted into by wireless protocols for mobile terminal；
2) after control system 1 receives the feed flow signal, switch element 25 is opened by control signal, makes to take liquid module
The second pipeline 24 and extraneous UNICOM in 2, supply module 21 by the first pipeline 22 into the liquid storage module 23 liquid level it is upper
Side is passed through the nitrogen of steady pressure, fixed concentration, and the ullage of the liquid storage module 23 is filled with the nitrogen of certain pressure, liquid
Nitrogen pressure above face is more than external atmosphere pressure, and the liquid in liquid storage module 23 is sent out by the second pipeline 24；
3) air pressure that the output end of module 21 is supplied in liquid module 2, or the first pipeline are taken described in the detection in real time of detection module 26
Air pressure in 22, or the air pressure of the ullage of liquid storage module 23, the data memory module 11 are deposited according to different liquids classification
The physical characteristic information and experimental data of respective liquid are contained, wherein, physical characteristic information, which includes such as density, experimental data, to be included
There is the experimental data made before dispatching from the factory according to running parameters such as different pipeline structures, pipeline diameters, control system 1 is according to different liquid
Body classification compares the atmospheric pressure value of detection with corresponding physical characteristic information and experimental data, and convert the liquid volume sent out
Or weight；
4) when the liquid capacity or weight of submitting reach the requirement of the feed flow signal, the closing switch of control system 1 member
Part 25, or/and make supply module 21 stop providing gas to the liquid storage module 23, the system stops sending out liquid.
It is close by conveying certain pressure, fixation into liquid storage module this application discloses a kind of liquid flow mearuement system
The nitrogen or inert gas of degree, liquid is extruded from liquid storage module, due to pipeline structure, it is known that the make-and-break time of switch element
Or the operating time of supply module can be obtained by the signal time difference of control system, nitrogen pressure is obtained by detection module,
Therefore can be calculated by above-mentioned data or liquid volume or weight that control experiment data are transferred out, due to control system
Signal time difference can detect to obtain by circuit module, time control is accurate, and nitrogen pressure can pass through the work(of feeder
Rate or valve opening degree, which freely control, to be adjusted flexibly, and detection module is high to the real-time detection precision of pressure, therefore passes through this
System meters convert obtained liquid volume or weight error is small, and accuracy is high, and by test of many times, accuracy is controlled positive and negative
Within 0.5%, meanwhile, the system is integrated in pumping gas and carried out in the pipeline of feed flow, without it is extra set gage probe or
Weighing device, there is the advantages of compact-sized, saving fraud, good economy performance.
The liquid flow mearuement method carried out using the system, simple with method, component is few, and integrated level is high, metering
The advantages of precision is high, and error is small, meets market actual demand, avoids the problem of error is big, meanwhile, set specially without extra
Door is used for the mechanism weighed, can just carry out taking liquid and metrological operation without container is placed on into specified location, therefore to general
Operation requires low for consumer, and appearance is easy for consumers to accept, has the advantages of market practicality is high.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (11)
- A kind of 1. liquid flow mearuement system, it is characterised in that including：Control system, for receiving feed flow signal, liquid module is taken according to feed flow signal control；Liquid module is taken, for providing gas, is sent out the liquid in liquid storage module by air pressure；Detection module, for detecting the air pressure, the liquid volume or weight sent out are calculated according to the pressure；When the liquid volume or weight of submitting reach the requirement of the feed flow signal, the control system is additionally operable to make described take Liquid module stop liquid is sent out.
- 2. a kind of liquid flow mearuement system according to claim 1, it is characterised in that the feed flow signal is equipped with liquid Body volume or weight information, and liquid category information.
- 3. a kind of liquid flow mearuement system according to claim 1, it is characterised in that described to take liquid module to include confession Gas module, the supply module is passed through the liquid storage module by the first pipeline, and the end of the first pipeline is located at the liquid storage The top of liquid level in module, the supply module are used to provide fixed pressure, the nitrogen of fixed concentration into the liquid storage module Or inert gas.
- 4. a kind of liquid flow mearuement system according to claim 1, it is characterised in that the detection module is specially one Kind of pressure sensor, for taking the air pressure in liquid module described in detecting in real time, and for by the atmospheric pressure value of detection send to The control system.
- 5. a kind of liquid flow mearuement system according to claim 4, it is characterised in that the control system also includes number According to memory module, the data memory module is used for the physical characteristic information that respective liquid is pre-stored with according to different liquids classification And experimental data, the control system are used for the atmospheric pressure value of the detection and corresponding physical characteristic information and experiment number According to comparison, the liquid volume or weight sent out.
- A kind of 6. liquid flow mearuement system according to claim 1, it is characterised in that liquid level in the liquid storage module Introduced below to have the second pipeline, the other end of second pipeline is the liquid outlet positioned at liquid storage module-external, second pipe Switch element is provided with road.
- 7. a kind of liquid flow mearuement system according to claim 6, it is characterised in that the switch element is electrical connection The two-position two-way solenoid valve of the control system, the switch element are used for：Opened when the control system receives the metering signal, make to take liquid module to send out liquid by air pressure；Closed when the liquid capacity or weight of submitting reach the requirement of the metering signal, make described to take liquid module to stop liquid Body is sent out.
- A kind of 8. liquid flow mearuement method, it is characterised in that including：1) feed flow signal is received；2) gas is provided to liquid storage module according to feed flow signal, is sent out the liquid in liquid storage module by air pressure；3) air pressure is detected, the liquid volume or weight sent out are calculated according to the value of the air pressure；4) when the liquid volume or weight of submitting reach the requirement of the feed flow signal, stop liquid is sent out.
- 9. a kind of liquid flow mearuement system according to claim 8, it is characterised in that the step 2) is specially：When After receiving the feed flow signal, switch element is opened, it is dense to be passed through fixation pressure, fixation above liquid level into the liquid storage module The nitrogen or inert gas of degree, the liquid in liquid storage module is sent out.
- 10. a kind of liquid flow mearuement system according to claim 8, it is characterised in that the step 3) is specially：It is real When detection described in take air pressure in liquid module, according to different liquids classification by the atmospheric pressure value of detection and corresponding physical characteristic information Compared with experimental data, the liquid capacity or weight sent out.
- 11. a kind of liquid flow mearuement system according to claim 8, it is characterised in that the step 4) is specially：When The liquid capacity or weight of submitting are closed when reaching the requirement of the feed flow signal, stop to the liquid storage module provide gas or Closing switch element, stop sending out liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710707822.7A CN107507345A (en) | 2017-08-17 | 2017-08-17 | A kind of liquid flow mearuement system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710707822.7A CN107507345A (en) | 2017-08-17 | 2017-08-17 | A kind of liquid flow mearuement system and method |
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| CN107507345A true CN107507345A (en) | 2017-12-22 |
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| CN201710707822.7A Pending CN107507345A (en) | 2017-08-17 | 2017-08-17 | A kind of liquid flow mearuement system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111047779A (en) * | 2019-12-31 | 2020-04-21 | 四川省川酒集团信息科技有限公司 | Intelligent self-service liquid product retail method based on intelligent Internet of things |
| CN111137828A (en) * | 2019-12-31 | 2020-05-12 | 四川长美互联信息科技有限公司 | Wine selling machine wine discharging system and method controlled by pressure |
| CN113687615A (en) * | 2021-08-24 | 2021-11-23 | 中科计算技术西部研究院 | High-precision allocation and storage control system and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4221732A1 (en) * | 1992-07-02 | 1994-01-05 | Fluid Verfahrenstechnik Gmbh | Dispensing system for pastes or poorly flowing material e.g. colour paste - has control valve in pipe leading from pressurised reservoir container to dispensing tube, located over gravimetric quantity meter, and uses pressure to provide controlled outflow when control valve closes. |
| CN2798200Y (en) * | 2005-06-10 | 2006-07-19 | 赵建国 | Dispenser for wine |
| CN103495442A (en) * | 2013-10-16 | 2014-01-08 | 佛山市顺德区罗恩科学仪器有限公司 | Electronic pipette, automatic metering method for electronic pipette, and automatic liquid separation method for electronic pipette |
| CN203620655U (en) * | 2013-10-16 | 2014-06-04 | 佛山市顺德区罗恩科学仪器有限公司 | Electric pipette |
| CN106327694A (en) * | 2016-08-19 | 2017-01-11 | 筱马科技（北京）有限责任公司 | Self-service beverage vending equipment and self-service beverage vending system |
| CN205959298U (en) * | 2016-08-19 | 2017-02-15 | 筱马科技（北京）有限责任公司 | Equipment and system of selling are sold to self -service drink |
-
2017
- 2017-08-17 CN CN201710707822.7A patent/CN107507345A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4221732A1 (en) * | 1992-07-02 | 1994-01-05 | Fluid Verfahrenstechnik Gmbh | Dispensing system for pastes or poorly flowing material e.g. colour paste - has control valve in pipe leading from pressurised reservoir container to dispensing tube, located over gravimetric quantity meter, and uses pressure to provide controlled outflow when control valve closes. |
| CN2798200Y (en) * | 2005-06-10 | 2006-07-19 | 赵建国 | Dispenser for wine |
| CN103495442A (en) * | 2013-10-16 | 2014-01-08 | 佛山市顺德区罗恩科学仪器有限公司 | Electronic pipette, automatic metering method for electronic pipette, and automatic liquid separation method for electronic pipette |
| CN203620655U (en) * | 2013-10-16 | 2014-06-04 | 佛山市顺德区罗恩科学仪器有限公司 | Electric pipette |
| CN106327694A (en) * | 2016-08-19 | 2017-01-11 | 筱马科技（北京）有限责任公司 | Self-service beverage vending equipment and self-service beverage vending system |
| CN205959298U (en) * | 2016-08-19 | 2017-02-15 | 筱马科技（北京）有限责任公司 | Equipment and system of selling are sold to self -service drink |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111047779A (en) * | 2019-12-31 | 2020-04-21 | 四川省川酒集团信息科技有限公司 | Intelligent self-service liquid product retail method based on intelligent Internet of things |
| CN111137828A (en) * | 2019-12-31 | 2020-05-12 | 四川长美互联信息科技有限公司 | Wine selling machine wine discharging system and method controlled by pressure |
| CN113687615A (en) * | 2021-08-24 | 2021-11-23 | 中科计算技术西部研究院 | High-precision allocation and storage control system and control method |
| CN113687615B (en) * | 2021-08-24 | 2023-06-09 | 中科计算技术西部研究院 | High-precision allocation control system and control method |
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Effective date of registration: 20200812 Address after: No.58, shijiebao group, Fenghuang village, Dezhou Town, Dechang County, Liangshan Yi Autonomous Prefecture, Sichuan Province Applicant after: Kang Zhaojun Address before: 641300 Chengnan industrial concentrated development zone, Yanjiang District, Ziyang City, Sichuan Province, No. 2 Chengnan Avenue, No. 1 Applicant before: SICHUAN MAYFLOWER PRECISION MACHINERY Co.,Ltd. |
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Application publication date: 20171222 |