CN110530759A - A kind of strength of fluid automatic measurement system based on Baume hydrometer - Google Patents
A kind of strength of fluid automatic measurement system based on Baume hydrometer Download PDFInfo
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- CN110530759A CN110530759A CN201910935946.XA CN201910935946A CN110530759A CN 110530759 A CN110530759 A CN 110530759A CN 201910935946 A CN201910935946 A CN 201910935946A CN 110530759 A CN110530759 A CN 110530759A
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- kickboard
- strength
- system based
- ultrasonic distance
- densimeter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
Abstract
A kind of strength of fluid automatic measurement system based on Baume hydrometer provided by the invention, including liquid level difference meter, controller, kickboard, cabinet, temperature sensor；It is characterized by: the kickboard is fixed at cabinet upper end opening, densimeter is installed in kickboard, the liquid level difference meter includes two ultrasonic distance measurement probes, two ultrasonic distance measurement probes are mounted on the support rod above kickboard, in the axial direction of densimeter, the liquid level difference meter and temperature sensor are connect with controller the detection direction detection direction vertical and one of with kickboard of ultrasonic distance measurement probe.The measuring principle of measuring system of the present invention is simple and reliable, it can be directly used for measurement and sampled measurements in bulk container, the measurement of concetration to different specific weight range liquid may be implemented, it can be directly used for strength of fluid real-time monitoring in industrial production, it can also be used for indoor sampled measurements, have the advantages that applied widely, measurement accuracy is high, stability is good, easy to operate, application value with higher compared with traditional measurement method.
Description
Technical field
The present invention relates to a kind of strength of fluid automatic measurement system based on Baume hydrometer.
Background technique
In the industrial production, it is often necessary to use various solution, solution concentration control and measurement have product quality
Very important influence, there are many method and instrument and equipment of strength of fluid measurement at present, but most common instrument is exactly Baume
Densimeter；Also known as concentration meter, it is that solution concentration, the method for density are measured as unit of Baume degrees.Baume degrees is to indicate solution
A kind of method of concentration immerses Baume hydrometer in surveyed solution, and obtained degree is Baume degrees, and Baume degrees is with French chemistry
Family's Baume name, he has formulated hydrometer-Baume hydrometer, Baume Hydrometer by the different there are many type of Scale Method,
General there are two types of types: one kind being weight table, is 0 ° of B é in distilled water with 20 DEG C for standard for measuring the liquid than water weight；
It is 15 ° of B é in 15% sodium chloride solution, carrying out equal part to scale, scale value is bigger down；Another kind is light table, for measuring
The liquid lighter than water is set to 0 to float on indicating value in pure water, and to scale equal part, up scale value is bigger.The Baume degrees of different solutions
Measuring method be similar, be all with hydrometric method, according to the specific gravity measured, the baumé hydrometer to different solutions is all
It is dedicated, such as alcohol baumé hydrometer, salt water baumé hydrometer, above this Baume Hydrometer, there is the corresponding type of measurement solution Baume degrees molten
The concentration of liquid can directly read and not have to table look-up.
Baume hydrometer needs manually to be read in actual production, and Baume hydrometer is put into and fills test solution
In appropriate graduated cylinder, kept for 20 DEG C of test solution temperature, after it stands, from horizontal position from and the scale of liquid level intersection, as
The Baume degrees of sample.In general, Baume hydrometer should measure at a temperature of 20 degree, but temperature one when usually actual use
As will not just comply with standard, so also needing to correct；Modification method: every 1 degree of the difference of temperature, Baume Hydrometer then needs to be modified
Degree, temperature adds when being higher than standard, low, subtracts, and corrected Calculation works and makes troubles to using.Meanwhile in the industrial production, straight
The concentration for connecing measurement bulk solutions is relatively difficult, needs to carry out sampling and measuring repeatedly, and solution concentration belongs to not in production
It is larger will manually to carry out accurately measurement progress dynamic monitoring difficulty for disconnected fluctuating change process.
Currently, there are many method and instrument and equipment of strength of fluid measurement, cardinal principle includes: ultrasonic method, ray, light
, pressure, electrolysis etc., the generally existing precision of these methods is insufficient, the limited disadvantage of application range, and traditional gravity Baume
Meter use process then needs manual sampling operation measurement, and measured data also need to be modified according to temperature, and intricate operation is difficult
With the variation of real-time monitoring solution concentration.The Chinese patent literature of Publication No. CN104568655A discloses a kind of strength of fluid
Method for automatic measurement, it is simple to provide structure, easy to maintenance, adaptable, low to operating environment requirements, and has pinpoint accuracy
And accuracy, the concentration suitable for a variety of solution detect automatically, this method is developed based on specific gravity principle, comprising: single-chip microcontroller, camera shooting
Head, buoyancy meter, temperature sensor, solenoid valve, sampling pump, Survey Software and liquid crystal display；Single-chip microcontroller and camera, temperature
Sensor, liquid crystal display, solenoid valve connection.Camera is connect with single-chip microcontroller, the acquisition of picture signal based on to buoyancy；Temperature
Degree sensor is connect with single-chip microcomputer input, for detecting the temperature of liquid in real time；Solenoid valve is connect with single-chip microcontroller, for cutting
Change the clear water for the liquid material or cleaning to be detected；Sampling pump is connect with monolithic, for liquid pump into sample cell.Single-chip microcontroller camera shooting
The image of head acquisition buoyancy meter obtains the concentration information of solution by calculating the position of buoyancy meter in the picture, while acquiring molten
The temperature of liquid carries out temperature correction to concentration, result is shown by liquid crystal display, reaches automatic measurement and online inspection
The purpose of survey.But this method is primarily present Railway Project,
(1) since this method needs sampling pump to be sampled, cannot be directly placed into liquid cell, be repeated sampling and
Setting-out handoff procedure needs the regular hour, it is difficult to continuous measurement free of discontinuities is carried out to strength of fluid variation, it should according to its statement
Method only measures the liquid than water weight.
(2) image of single-chip microcontroller camera acquisition buoyancy meter obtains solution by calculating the position of buoyancy meter in the picture
Concentration information, using this method obtain concentration information technology complexity be not easy to realize；Meanwhile if not solving replacement different model
Buoyancy device obtained by different liquids concentration the problem of；And measured temperature is instrument internal fluid temperature, and and production process
There may be certain errors for middle liquid actual temperature, cause amendment data distortion.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of strength of fluid automatic measurement system based on Baume hydrometer
System.
The present invention is achieved by the following technical programs.
A kind of strength of fluid automatic measurement system based on Baume hydrometer provided by the invention, including liquid level difference meter, control
Device processed, kickboard, cabinet, temperature sensor；It is characterized by: the kickboard is fixed at cabinet upper end opening, installed in kickboard
There is densimeter, the liquid level difference meter includes two ultrasonic distance measurement probes, and two ultrasonic distance measurement probes are mounted on above kickboard
Support rod on, ultrasonic distance measurement probe detection direction detection direction vertical and one of with kickboard densimeter axis
To the liquid level difference meter and temperature sensor are connect with controller.
The both ends of the kickboard are movably arranged on respectively on two guide rods, and the guide rod is fixed on the container of solution to be measured
It is interior.
The ultrasonic distance measurement probe is supported and fixed in kickboard by the bracket being mounted in kickboard.
The lower end center of the kickboard is also connected with sliding rail, is equipped with baffle on sliding rail.
The sliding rail is screw rod, and the center of baffle is threaded hole and sliding rail and cooperates, the side of baffle and cabinet it is interior
Wall fitting.
A through-hole and a mounting hole, a ultrasonic wave of the through-hole and kickboard upper end are also machined in the kickboard
Range finding probe is opposite, densimeter is movably installed in mounting hole, densimeter and another ultrasonic distance measurement probe are opposite, in kickboard
Temperature sensor is installed.
Cooperated between the sliding rail and motor by gear, motor is mounted on the upper end of kickboard.
The beneficial effects of the present invention are: the measuring principle of measuring system is simple and reliable, can be directly used for surveying in bulk container
Amount and sampled measurements, may be implemented the measurement of concetration to different specific weight range liquid, that is, can be directly used for liquid in industrial production
Density real-time monitoring, it can also be used to which indoor sampled measurements have applied widely, measurement accuracy compared with traditional measurement method
The advantage high, stability is good, easy to operate, application value with higher.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
In figure: 1- liquid level difference meter, 2- controller, 3- kickboard, 4- guide rod, 5- baffle, 6- cabinet, 7- sliding rail, 8- densimeter,
9- temperature sensor, 10- liquid level, 11- ultrasonic distance measurement probe, 12- motor.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
A kind of strength of fluid automatic measurement system based on Baume hydrometer, including liquid level difference meter 1, controller 2, kickboard 3,
Cabinet 6, temperature sensor 9；It is characterized by: the kickboard 3 is fixed at 6 upper end opening of cabinet, specific gravity is installed in kickboard 3
Meter 8, the liquid level difference meter 1 include two ultrasonic distance measurement probes 11, and two ultrasonic distance measurement probes 11 are mounted on 3 top of kickboard
Support rod on, ultrasonic distance measurement probe 11 detection direction detection direction vertical and one of with kickboard 3 in densimeter 8
Axial, the temperature sensor of liquid level difference meter 1 and 9 is connect with controller 2.
The both ends of the kickboard 3 are movably arranged on respectively on two guide rods 4, and the guide rod 4 is fixed on the appearance of solution to be measured
In device.
The ultrasonic distance measurement probe 11 is supported and fixed in kickboard 3 by the bracket being mounted in kickboard 3.
The lower end center of the kickboard 3 is also connected with sliding rail 7, and baffle 5 is equipped on sliding rail 7.
The sliding rail 7 is screw rod, and the center of baffle 5 is threaded hole and sliding rail 7 cooperates, the side of baffle 5 and cabinet 6
Inner wall fitting.
A through-hole and a mounting hole, a ultrasound of the through-hole and 3 upper end of kickboard are also machined in the kickboard 3
Wave range finding probe 11 is opposite, and densimeter 8, densimeter 8 and another ultrasonic distance measurement 11 phases of probe are movably installed in mounting hole
It is right；The kickboard is equipped with temperature sensor 9.
Cooperated between the sliding rail 7 and motor 12 by gear, motor 12 is mounted on the upper end of kickboard 3.
Baume hydrometer is the core component that strength of fluid measures in the present invention, and according to Archimedes principle, it floats height
Degree is linear with strength of fluid, can directly be improved with the glass gravity Baume of standard on the market, mainly in Qi Ding
Portion increases the lightweight thin round plate block for being conducive to ultrasonic measurement height；
Liquid level difference meter mainly uses ultrasonic distance measurement principle, is measured respectively at the top of liquid level and densimeter using dual probe
Height, probe uses wirelessly transmitting data, and probe is mounted on above kickboard, and activity fixation is guaranteed at vertical state and liquid level
Vertically, the height that densimeter floats on liquid upper can be obtained by calculating height difference, transfers data to control system, passes through conversion
It can must correspond to strength of fluid；
Kickboard is mainly used for floating on instrument into the carrying platform on liquid, kickboard static housing upper end Kai Chu, and by cabinet
Upper end opening is completely covered, and kickboard restocking has the probe of liquid level difference meter, there are for survey liquid level hole and densimeter and
The mobile aperture of guide rod.
Guide rod is connect with kickboard, is kickboard as liquid level changes the track moved up and down, is mainly used for putting in device
Enter such as pond, solution tank directly measurement strength of fluid in bulk container, is directly anchored in bulk container.
Temperature sensor is fixed on kickboard lower part using radio temperature sensor, for measuring the temperature of liquid, will count
According to the data sink being emitted in control system, system carries out data correction to concentration according to temperature value.
Cabinet, cabinet are mainly used for that instrument inside and outside being isolated in measurement, and playing prevents outside liquid influence of fluctuations pair
Measurement data has an impact, and builds tranquil liquid level for strength of fluid measurement, guarantees the stabilization of liquid level and densimeter.Cabinet
Equipped with the flapper that can slide up and down, when directly measure in bulk container, controller is popped one's head in by radio set and is run
Baffle lifting is driven, measurement of concetration front apron rises, and allows liquid uniformly to mix the inside and outside strength of fluid of guarantee consistent；Baffle when measurement
It moves down and all round closure is carried out to cabinet, liquid keeps tranquil not by outside liquid influence of fluctuations in guard box body, realizes accurate survey
Amount.If carrying out sampled measurements, then closes flapper and be sealed, liquid is filled into cabinet from the hole in kickboard, then
Directly measure.
Controller, controls the core component of the operation of entire instrument, and the intracorporal flapper motor operation of control cabinet is kept
Liquid level stabilizing in case；Difference in height is converted into strength of fluid by the data of the measurement of collection liquid tentiometer, according to the model of densimeter
Corresponding calculation formula and corresponding parameter are selected in software systems, may be implemented to survey the strength of fluid of different specific weight range
Amount；The data of temperature collection sensor, and concentration is modified according to temperature, and concentration values are displayed on the screen.Liquid
Bulk concentration calculation formula is as follows:
Specific gravity is greater than 1 strength of fluid: W%=K*h+KT*(T-20)
Specific gravity is less than 1 strength of fluid: W%=K* (h0-h)+KT*(T-20)
W%- strength of fluid, K- conversion coefficient are selected according to different model densimeter, and h- liquid level and densimeter top are high
Difference, height difference when h0- concentration is 0, KTTemperature correction coefficient, T- liquid celsius temperature scale.
Claims (7)
1. a kind of strength of fluid automatic measurement system based on Baume hydrometer, including liquid level difference meter (1), controller (2), kickboard
(3), cabinet (6), temperature sensor (9)；It is characterized by: the kickboard (3) is fixed at cabinet (6) upper end opening, kickboard
(3) densimeter (8) and temperature sensor (9) are installed, the liquid level difference meter (1) includes two ultrasonic distance measurement probes on
(11), two ultrasonic distance measurement probes (11) are mounted on the support rod above kickboard (3), the inspection of ultrasonic distance measurement probe (11)
Direction detection direction vertical and one of with kickboard (3) is surveyed in the axial direction of densimeter (8), the liquid level difference meter (1) and temperature
Sensor (9) is connect with controller (2).
2. the strength of fluid automatic measurement system based on Baume hydrometer as described in claim 1, it is characterised in that: described floating
The both ends of plate (3) are movably arranged on respectively on two guide rods (4), and the guide rod (4) is fixed in the container of solution to be measured.
3. the strength of fluid automatic measurement system based on Baume hydrometer as described in claim 1, it is characterised in that: described super
Sound ranging probe (11) is supported and fixed on kickboard (3) by the bracket being mounted on kickboard (3).
4. the strength of fluid automatic measurement system based on Baume hydrometer as described in claim 1, it is characterised in that: described floating
The lower end center of plate (3) is also connected with sliding rail (7), and baffle (5) are equipped on sliding rail (7).
5. the strength of fluid automatic measurement system based on Baume hydrometer as claimed in claim 4, it is characterised in that: the cunning
Rail (7) is screw rod, and the center of baffle (5) is threaded hole and sliding rail (7) and cooperates, and the side of baffle (5) is interior with cabinet (6)
Wall fitting.
6. the strength of fluid automatic measurement system based on Baume hydrometer as described in claim 1, it is characterised in that: described floating
A through-hole and a mounting hole are also machined on plate (3), a ultrasonic distance measurement of the through-hole and kickboard (3) upper end is popped one's head in
(11) relatively, it being movably installed in mounting hole densimeter (8), densimeter (8) and another ultrasonic distance measurement pop one's head in (11) relatively,
Temperature sensor (9) are also equipped in kickboard.
7. the strength of fluid automatic measurement system based on Baume hydrometer as claimed in claim 5, it is characterised in that: the cunning
Cooperated between rail (7) and motor (12) by gear, motor (12) is mounted on the upper end of kickboard (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910935946.XA CN110530759A (en) | 2019-09-29 | 2019-09-29 | A kind of strength of fluid automatic measurement system based on Baume hydrometer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910935946.XA CN110530759A (en) | 2019-09-29 | 2019-09-29 | A kind of strength of fluid automatic measurement system based on Baume hydrometer |
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| CN110530759A true CN110530759A (en) | 2019-12-03 |
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| CN201910935946.XA Pending CN110530759A (en) | 2019-09-29 | 2019-09-29 | A kind of strength of fluid automatic measurement system based on Baume hydrometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267422A (en) * | 2021-05-21 | 2021-08-17 | 广州丁海科技有限公司 | Seawater salinity online monitoring system and method |
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|---|---|---|---|---|
| CN103776517A (en) * | 2014-02-14 | 2014-05-07 | 马睿松 | Control method for alignment of scale line with liquid level |
| CN203981217U (en) * | 2014-08-12 | 2014-12-03 | 天津博远达科技有限公司 | Floatation type bittern Baumé degree, liquid level, automatic system of temperature measurement |
| CN205981775U (en) * | 2016-08-24 | 2017-02-22 | 姜辉 | Water quality monitoring and sampling device |
| CN109186687A (en) * | 2018-10-30 | 2019-01-11 | 锦州艾德自动控制系统有限公司 | Salt pond concentration and liquid level detection device suit |
-
2019
- 2019-09-29 CN CN201910935946.XA patent/CN110530759A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776517A (en) * | 2014-02-14 | 2014-05-07 | 马睿松 | Control method for alignment of scale line with liquid level |
| CN203981217U (en) * | 2014-08-12 | 2014-12-03 | 天津博远达科技有限公司 | Floatation type bittern Baumé degree, liquid level, automatic system of temperature measurement |
| CN205981775U (en) * | 2016-08-24 | 2017-02-22 | 姜辉 | Water quality monitoring and sampling device |
| CN109186687A (en) * | 2018-10-30 | 2019-01-11 | 锦州艾德自动控制系统有限公司 | Salt pond concentration and liquid level detection device suit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267422A (en) * | 2021-05-21 | 2021-08-17 | 广州丁海科技有限公司 | Seawater salinity online monitoring system and method |
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Application publication date: 20191203 |