CN106290735B - A kind of experimental provision for being used to measure liquid-liquid transfer coefficient - Google Patents
A kind of experimental provision for being used to measure liquid-liquid transfer coefficient Download PDFInfo
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- CN106290735B CN106290735B CN201610756418.4A CN201610756418A CN106290735B CN 106290735 B CN106290735 B CN 106290735B CN 201610756418 A CN201610756418 A CN 201610756418A CN 106290735 B CN106290735 B CN 106290735B
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
A kind of experimental provision for being used to measure liquid-liquid transfer coefficient, include the glass kettle of chuck shape structure, it is fixed in the upper lower flange of glass kettle upper and lower side, interface ring at glass kettle cavity heights half position, is respectively arranged in a manner of with glass kettle coaxial line by motor-driven upper and lower agitating paddle in the glass kettle upper and lower cavity being split to form by interface ring；Centre bore around the interface ring is provided with several through-holes, and central radiation baffle is respectively arranged between glass kettle inner cavity upper and lower side and interface ring centre bore；The chuck layer of the glass kettle connects Water Tank with Temp.-controlled by thermostatted water import and export, and the sample tap being connected respectively with glass kettle upper and lower cavity is equipped on glass kettle outer wall；The agitating shaft of the upper agitating paddle is mounted on the upper flange of glass kettle, and injection port and thermometer socket are equipped in the upper flange；The agitating shaft of the lower stirring paddle is mounted on the lower flange of glass kettle, and tap hole is equipped on the lower flange.
Description
Technical field
The invention belongs to impart knowledge to students, scientific experiment technical equipment field, more particularly to it is a kind of be suitable for mass transfer theory research with
The experimental provision of the measure liquid-liquid transfer coefficient of teaching experiment.
Background technology
The height of actual extraction device efficiency and how its efficiency could be improved, be people's very concern.
In order to solve these problems, it is necessary to which research influences the factor of mass transfer rate and the mechanism of rule and discussion mass transport process.It is near several
Over 10 years, though people, to the dynamics state of two phase-contact surfaces, substance is by the transport mechanism and boundary at interface to transmitting
The problems such as resistance of process, is studied, but due to the complexity of liquid-liquid transfer process, and many problems obtain satisfied not yet
Answer, some engineering problems have to by means of experiment method or handle by rule of thumb.These all illustrate to basic theories also
Up for further studying.
At present, the device of research liquid-liquid transfer mechanism is also named Lewis ponds mostly using constant-interface abstraction pool.Permanent interface extraction
Pond is taken to be separated two-phase with one piece of horizontal baffle with annular space, the interface of two-phase is in the annular space of baffle ring, often
One phase is stirred respectively by the agitating paddle rotated alone.Happy kind hall et al. is in the article delivered《Rare earth solvent extraction power
And research method》In done detailed description to constant interfacial area cell, but structure is more complicated in these designs, and in these devices
Two-phase independent stirring mostly using set axle construction, the agitating shaft of lower floor's heavy phase will be unfavorable for the steady of interface by two-phase interface
It is fixed.
Invention content
The purpose of the present invention be exactly for the above-mentioned prior art in the presence of shortcoming, ground according to liquid-liquid transfer theory
The needs studied carefully provide a kind of liquid-liquid transfer coefficient determination experimental provision simple in structure, easy to operate.The device can be studied and be stirred
Influence of the parameters such as speed, interfacial area, reaction temperature to mass transport process is mixed, is ideal kinetic reaction device.
The purpose of the present invention can be realized by following technique measures：
The experimental provision for being used to measure liquid-liquid transfer coefficient of the present invention includes the glass kettle of chuck shape structure, is fixed in glass
The upper lower flange of glass kettle upper and lower side, the interface ring at glass kettle cavity heights half position, by interface ring point
It is respectively arranged in a manner of with glass kettle coaxial line by motor-driven upper and lower agitating paddle in the glass kettle upper and lower cavity cut；
Centre bore around the interface ring is provided with several through-holes, and the number of openings needs to be configured according to experiment, can be with
Through-hole number control two-phase mass transfer area is opened up on the ring of interface by changing；In glass kettle inner cavity upper and lower side and interface ring centre bore
Between be respectively arranged with central radiation baffle；The chuck layer of the glass kettle connects Water Tank with Temp.-controlled by thermostatted water import and export,
The sample tap being connected respectively with glass kettle upper and lower cavity is equipped on glass kettle outer wall, the concentration that can detect two-phase liquid respectively becomes
Change, sampling is accurate, easy to operate, does not interfere with mass transport process；The agitating shaft of the upper agitating paddle is mounted on the upper method of glass kettle
Lan Shang is equipped with injection port and thermometer socket in the upper flange, and thermometer is used to measure the temperature of solution in glass kettle；It is described
The agitating shaft of lower stirring paddle is mounted on the lower flange of glass kettle, and tap hole is equipped on the lower flange.
In the present invention be located at glass kettle upper and lower cavity in central radial pattern baffle arrangement it is identical, be by size it is identical,
It is formed every four uniformly distributed block baffles；It is upper in the ring centre bore of interface with being placed on positioned at the lower end of four block baffles of glass kettle epicoele
Ring flat-plate Joint, upper end are in contact cooperation with positioned at glass kettle inner cavity upper end wall surface, and glass kettle is placed in inversed taper platform shape structure
In epicoele；Mutually consolidate with the lower ring plate being placed in the ring centre bore of interface positioned at the upper end of the central radiation baffle of glass kettle cavity of resorption
It connects, lower end is in contact cooperation with positioned at glass kettle inner cavity lower end wall surface, is placed in glass kettle epicoele in taper type structure；It is above-mentioned
For the central radial pattern baffle and interface ring of structure using embedded connection, easy disassembly can also take out cleaning with replacing at any time.
Beneficial effects of the present invention are as follows：
Current most of extraction process use organic solvent, and for extractant, organic glass material is easily corroded, the present invention
Glass kettle uses glass material, the corrosion of avoiding device.
The two-phase stirring of the present invention uses the independent stirring of chuck shape structure, and upper and lower two phase liquid respectively has a set of independent stir
System is mixed, lower floor's solution agitating shaft is avoided to pass through two-phase interface and destroy the stabilization at interface.
There are two sample tap, sampler gos deep into inside glass kettle respectively from two-phase sampling, operation for glass kettle side of the present invention
It conveniently and can be to avoid operation dead zone.
The design of center baffle and six leaf agitating paddles of the invention can utmostly reduce axial flowing, promote the diameter of fluid
To flowing, reduce interfacial disturbance.
Description of the drawings
The structure diagram of Fig. 1 experimental provisions of the present invention.
Fig. 2 ring vertical views in interface of the present invention.
The central radiation baffle vertical view of Fig. 3 present invention.
The central radiation baffle front view of Fig. 4 present invention.
Serial number in figure：1st, the glass kettle of chuck shape structure, 2, agitating paddle, 3, central radiation baffle, 4, interface ring, 5, sampling
Mouthful, 6, constant temperature water entrance, 7, flange, 8, injection port, 9, tap hole, 10, stirring motor, 11, lower ring plate, 12, upper ring plate.
Specific embodiment
In order to make the purpose of the present invention, technical solution and advantage are clearer, with reference to the accompanying drawings and embodiments, to this hair
It is bright to be described further.
As shown in Figure 1, the experimental provision for being used to measure liquid-liquid transfer coefficient of the present invention includes the glass of chuck shape structure
Kettle 1 is fixed in the upper lower flange 7 of glass kettle upper and lower side, the interface ring 4 at glass kettle cavity heights half position
（Referring to Fig. 2）, be respectively arranged in a manner of with glass kettle coaxial line in the glass kettle upper and lower cavity being split to form by interface ring 4 by
The upper and lower agitating paddle 2 that motor 10 drives；Centre bore around the interface ring 4 is provided with several through-holes, the number of openings
It needs to be configured according to experiment, through-hole number control two-phase mass transfer area can be opened up on the ring of interface by changing；In glass
Central radiation baffle 3 is respectively arranged between 4 centre bore of kettle inner cavity upper and lower side and interface ring；The chuck layer of the glass kettle is led to
It crosses constant temperature water entrance 6 and connects Water Tank with Temp.-controlled, the sampling being connected respectively with glass kettle upper and lower cavity is equipped on glass kettle outer wall
Mouth 5 can detect the concentration variation of two-phase liquid respectively, and sampling is accurate, easy to operate, does not interfere with mass transport process；It is stirred on described
The agitating shaft for mixing paddle is mounted on the upper flange of glass kettle, and injection port and thermometer socket, thermometer are equipped in the upper flange
For measuring the temperature of solution in glass kettle；The agitating shaft of the lower stirring paddle is mounted on the lower flange of glass kettle, described
Lower flange is equipped with tap hole.
As shown in Figure 3,4, the present invention in be located at glass kettle upper and lower cavity in central radial pattern baffle arrangement it is identical, be by
Size is identical, four block baffles uniformly at intervals are formed；Positioned at the lower end of four block baffles of glass kettle epicoele and it is placed on interface ring 4
12 Joint of upper ring plate in centre bore, upper end is in contact cooperation with positioned at glass kettle inner cavity upper end wall surface, in inversed taper platform shape knot
Structure is placed in glass kettle epicoele；Positioned at the upper end of the central radiation baffle of glass kettle cavity of resorption and it is placed on 4 centre bore of interface ring
Interior 11 Joint of lower ring plate, lower end are in contact cooperation with positioned at glass kettle inner cavity lower end wall surface, are placed in taper type structure
In glass kettle epicoele；For the central radial pattern baffle and interface ring of above structure using embedded connection, easy disassembly also can be with
When take out cleaning and replace.
More specifically：The upper lower flange of the glass kettle is bolted, the upper stirring motor of upper flange fixation, and there are
Injection port and thermometer socket, thermometer go deep into inside glass kettle, can monitor the solution temperature inside glass kettle constantly.Glass
Two sample taps on the right of kettle can take two phase liquid to carry out concentration analysis respectively.The glass kettle left side connects the disengaging of Water Tank with Temp.-controlled
Mouthful, ensure metastable reaction environment inside glass kettle.
The mode of operation of the present invention is as follows：
1st, the present apparatus is equipped with sampler and super constant temperature water tank.
2nd, experiment parameter such as reaction temperature, mixing speed and interfacial area are chosen before testing.If needing to change interfacial area, twist
The fixing bolt of upper flange is opened, interface ring is taken out, baffle and interface ring are put into glass kettle again after finishing changing interface ring, so
After tighten fixing bolt.
3rd, Water Tank with Temp.-controlled is opened, temperature is adjusted to experimental temperature.Two phase liquid needed for testing places constant temperature respectively
Water-bath is to required temperature in sink.
4th, the mode that the heavy phase glass bar that constant temperature is crossed drains is added in from injection port 8 in the ring of glass glass kettle interface
Then heart line position adds in glass kettle overhead gage position with the light phase that same method crosses constant temperature, writes down addition glass respectively
The quality of glass kettle two-phase.
5th, open stirring switch, adjusting rotating speed makes two-phase mixing speed consistent, etc. after the mutual saturation of two-phases, every a timing
Between, with sampler respectively from 5 sampling analysis of upper and lower two sample taps.Each sample volume about 1ml or so.
6th, after testing, solution is discharged from tap hole 9 and with distilled water cleaning equipment 2-3 times（If equipment inner wall has
Wall built-up phenomenon application ethanol solution cleans）, it is then shut off equipment power supply.If not having to for a long time, it should will be dried inside equipment, make to set
It is standby to keep dry state.
Claims (2)
1. a kind of experimental provision for being used to measure liquid-liquid transfer coefficient, it is characterised in that：It includes the glass kettle of chuck shape structure
（1）, it is fixed in the upper lower flange of glass kettle upper and lower side（7）, the interface at glass kettle cavity heights half position
Ring（4）, by interface ring（4）It is respectively arranged in a manner of with glass kettle coaxial line by electricity in the glass kettle upper and lower cavity being split to form
Machine（10）The upper and lower agitating paddle of driving（2）；Around the interface ring（4）Centre bore be provided with several through-holes, in glass kettle
Inner cavity upper and lower side and interface ring（4）Central radiation baffle is respectively arranged between centre bore（3）；The chuck layer of the glass kettle
Pass through constant temperature water entrance（6）Water Tank with Temp.-controlled is connected, is equipped with what is be connected respectively with glass kettle upper and lower cavity on glass kettle outer wall
Sample tap（5）；The agitating shaft of the upper agitating paddle be mounted on glass kettle upper flange on, the upper flange be equipped with injection port and
Thermometer socket；The agitating shaft of the lower stirring paddle is mounted on the lower flange of glass kettle, and tapping is equipped on the lower flange
Mouthful.
2. it is used to measure the experimental provision of liquid-liquid transfer coefficient according to claim 1, it is characterised in that：On glass kettle
The central radiation baffle structure of lower intracavitary is identical, is by size is identical, four block baffles uniformly at intervals are formed；Positioned at glass kettle
The lower end of four block baffles of epicoele is with being placed on interface ring（4）Upper ring plate Joint in centre bore, upper end is with being located at glass kettle
Inner cavity upper end wall surface is in contact cooperation, is placed in glass kettle epicoele in inversed taper platform shape structure；Positioned at the center of glass kettle cavity of resorption
The upper end of radiation baffle is with being placed on interface ring（4）Lower ring plate Joint in centre bore, lower end is with being located under glass kettle inner cavity
End wall surface is in contact cooperation, is placed in glass kettle epicoele in taper type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610756418.4A CN106290735B (en) | 2016-08-30 | 2016-08-30 | A kind of experimental provision for being used to measure liquid-liquid transfer coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610756418.4A CN106290735B (en) | 2016-08-30 | 2016-08-30 | A kind of experimental provision for being used to measure liquid-liquid transfer coefficient |
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| Publication Number | Publication Date |
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| CN106290735A CN106290735A (en) | 2017-01-04 |
| CN106290735B true CN106290735B (en) | 2018-06-08 |
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| CN108404452A (en) * | 2018-05-22 | 2018-08-17 | 中国原子能科学研究院 | A kind of constant-interface abstraction pool |
| CN108982304A (en) * | 2018-10-12 | 2018-12-11 | 青岛科技大学 | A kind of test CO2The new equipment of alternate diffusion mass transfer coefficient with oil |
| CN111665164B (en) * | 2019-03-05 | 2023-07-18 | 中国石油化工股份有限公司 | Determination of CO 2 Experimental device, system and method for mass transfer coefficient between oil and water |
| CN113155675B (en) * | 2021-05-17 | 2024-09-20 | 中山大学 | Liquid-liquid two-phase mass transfer coefficient measuring device |
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| KR20030097318A (en) * | 2002-06-20 | 2003-12-31 | 나노미래 주식회사 | Apparatus for Heat Treating Metal Catalyzer for Carbon Nano Materials |
| CN101274249A (en) * | 2007-03-28 | 2008-10-01 | 中国石油大学(北京) | Novel liquid-liquid heterophase reactor |
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