CN208420630U - The electrical impedance spectrometry on-line measurement device of crystal grain size in crystallization process - Google Patents
The electrical impedance spectrometry on-line measurement device of crystal grain size in crystallization process Download PDFInfo
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Abstract
The utility model is a kind of electrical impedance spectrometry on-line measurement device of crystal grain size in crystallization process, including, reaction kettle, for accommodating detection solution, reaction kettle is adjusted and controlled equipped with temperature and plugs temperature sensor；Electrode structure includes planar positive electrode, planar negative electrode, needle-shaped positive electrode and needle-shaped negative electrode；Needle-shaped positive electrode, needle-shaped negative electrode and planar positive electrode, planar negative electrode are in circumferentially staggered setting；Electrical impedance instrument, for applying excitation electrical field signal to planar positive electrode and planar negative electrode, and electrical impedance instrument can measure the response electric signal for receiving detection solution on needle-shaped positive electrode and needle-shaped negative electrode；Data acquisition unit and control display unit, temperature is adjusted and controlled and electrical impedance instrument is electrically connected with control display unit.The measuring device obtains the changing rule of crystal grain size in solution crystallization process, provides important foundation accurately to control and monitor crystallization process by the electrical impedance spectrum of measurement particle suspension liquid.
Description
Technical field
The utility model relates to crystal grain sizes in solution crystallization detection technique field more particularly to a kind of crystallization process
Electrical impedance spectrometry on-line measurement device.
Background technique
In the industrial processes such as chemical industry, the energy, pharmacy, food and material, crystal grain ruler in solution crystallization process
Very little on-line measurement has industrial stokehold and properties of product control significant.
Currently used particle size measurement method is optical method, such as laser scattering method, multiple Scattering method, optical method
It is only applicable to clear solution and the lower situation of granule density.Situations such as to the particle solution of opaque solution and high concentration, light
Method measurement is difficult to carry out, it is therefore desirable to which a kind of new particle size On-line Measuring Method of utility model is to meet actual demand.
The present inventor based on years of experience and practice in relevant industries, proposes crystal in a kind of crystallization process as a result,
The electrical impedance spectrometry on-line measurement device of particle size, to overcome the deficiencies of existing technologies.
Utility model content
The purpose of this utility model is to provide a kind of electrical impedance spectrometries of crystal grain size in crystallization process to survey online
The problems such as measuring device, solution transparency existing in the prior art is overcome to limit, the measuring device pass through measurement particle suspension liquid
Electrical impedance spectrum, the changing rule of crystal grain size in solution crystallization process is obtained, accurately to control and monitor crystallization process
Important foundation is provided.
The purpose of this utility model is achieved in that a kind of electrical impedance spectrometry of crystal grain size in crystallization process exists
Line measuring device, including,
Reaction kettle, for accommodating detection solution, the reaction kettle is adjusted and controlled equipped with temperature, plugs in the reaction kettle
Temperature sensor；
Electrode structure, including the planar positive electrode and planar negative electrode being oppositely arranged, the planar positive electrode and the face
Side wall of the shape negative electrode with the reaction kettle is set in parallel；The electrode structure further includes the needle-shaped positive electrode being oppositely arranged
With needle-shaped negative electrode；The needle-shaped positive electrode, the needle-shaped negative electrode and the planar positive electrode, the planar negative electrode are in week
To being staggered；The needle-shaped positive electrode, the needle-shaped negative electrode, the planar positive electrode and the planar negative electrode are suspended in
In reaction kettle and it can be inserted in detection solution；
Electrical impedance instrument, for applying excitation electrical field signal to the planar positive electrode and the planar negative electrode, and it is described
Electrical impedance instrument can measure the response electric signal for receiving detection solution on the needle-shaped positive electrode and the needle-shaped negative electrode；
Data acquisition unit and control display unit, the temperature sensor are electrically connected with the data acquisition unit, institute
The adjusted and controlled and described electrical impedance instrument of data acquisition unit, the temperature is stated to be electrically connected with the control display unit, it is described
Control display unit can show the electrical impedance spectrum and temperature curve of output detection solution.
In a better embodiment of the utility model, the cylindrical setting of reaction kettle, the planar positive electrode
It is arc surface electrode with the planar negative electrode.
In a better embodiment of the utility model, the reaction kettle is the double layer jacket structure reaction that can be sealed
Kettle, the reaction kettle include coaxial and the inner tube wall and outer tube wall of spaced radial setting, the inner tube wall and the outer tube wall it
Between constitute tempered water accommodating chamber, the top of the outer tube wall is arranged the first discharge outlet, the lower part setting first of the outer tube wall into
The mouth of a river；Seal base is arranged in the bottom of the reaction kettle, and top pressure closure, the face is removedly arranged in the top of the reaction kettle
The sealing top is connected at the top of shape positive electrode, the planar negative electrode, the needle-shaped positive electrode and the needle-shaped negative electrode
It covers.
In a better embodiment of the utility model, the adjusted and controlled temperature includes heating refrigeration cycle device, institute
It states and temperature control water cavity is set in heating refrigeration cycle device, setting is connected to the temperature control water cavity on the heating refrigeration cycle device the
Two water inlets and the second discharge outlet, second discharge outlet are connected to setting with first water inlet, second water inlet with
The first discharge outlet connection setting, the interior setting of heating refrigeration cycle device can regulate and control the temperature control of temperature control water cavity temperature
Device, the temperature controller are electrically connected with the control display unit.
In a better embodiment of the utility model, the electrical impedance spectrometry of crystal grain size in the crystallization process
On-line measurement device further includes transmissometer, and one end setting of the transmissometer can be inserted in the turbidity of detection turbidity in detection solution
Probe, the transmissometer are electrically connected with the data acquisition unit.
In a better embodiment of the utility model, the electrical impedance spectrometry of crystal grain size in the crystallization process
On-line measurement device further includes magnetic stirring apparatus, and the reaction kettle is set on the top surface of the magnetic stirring apparatus.
In a better embodiment of the utility model, it is defeated that the data acquisition unit can acquire the temperature sensor
The turbidity data of temperature data and transmissometer output out, the data acquisition unit can be by temperature data and turbidity data
It is transferred to the control display unit, it is in heated condition or refrigeration shape that it is adjusted and controlled, which to control the temperature, for the control display unit
State, and the control display unit can regulate and control the adjusted and controlled rate of heat addition of the temperature and rate of temperature fall；The control display
Unit can export electrical impedance spectrum, temperature curve and the Haze curve of display detection solution.
From the above mentioned, the electrical impedance spectrometry on-line measurement of crystal grain size fills in crystallization process provided by the utility model
It sets and has the following beneficial effects:
In the crystallization process of the utility model in the electrical impedance spectrometry on-line measurement device of crystal grain size, using resistance
Anti- spectrometry obtains crystallization process according to the electrical impedance spectrum analysis that detection obtains to solution progress on-line checking is detected in crystallization process
The changing rule of middle crystal grain size provides important foundation accurately to control and monitor crystallization process；The utility model
Planar positive electrode and face in crystallization process in the electrical impedance spectrometry on-line measurement device of crystal grain size, as excitation electrode
Shape negative electrode area is larger, can produce more uniform electric field, reduce due to electric field it is uneven caused by measurement error；Simultaneously
The polarity effect that electrode structure can be effectively reduced improves the precision of measurement；Crystal grain ruler in the crystallization process of the utility model
In very little electrical impedance spectrometry on-line measurement device, temperature is adjusted and controlled to be heated or the temperature regulated and controled in reaction kettle of freezing, and makes it
Meet the crystallization temperature requirement of detection solution；The electrical impedance spectrometry of crystal grain size is online in the crystallization process of the utility model
Measuring device structure is simple, and measurement result is accurate and measurement process is reliable and stable, convenient to carry out.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1: for the knot of the electrical impedance spectrometry on-line measurement device of crystal grain size in the crystallization process of the utility model
Structure schematic diagram.
In figure:
100, in crystallization process crystal grain size electrical impedance spectrometry on-line measurement device；
1, reaction kettle；
11, inner tube wall；
12, outer tube wall；121, the first discharge outlet；122, the first water inlet；
13, tempered water accommodating chamber；
14, seal base；
2, electrode structure；
211, planar positive electrode；212, planar negative electrode；
221, needle-shaped positive electrode；222, needle-shaped negative electrode；
3, electrical impedance instrument；
4, temperature is adjusted and controlled；
41, refrigeration cycle device is heated；411, the second water inlet；412, the second discharge outlet；
42, temperature sensor；
5, transmissometer；
51, turbidity probe tip；
6, display unit is controlled；
7, magnetic stirring apparatus；
8, data acquisition unit.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
Specific embodiment of the present utility model.
As shown in Figure 1, the electrical impedance spectrometry that the utility model provides crystal grain size in a kind of crystallization process is surveyed online
Device 100 is measured, including,
Reaction kettle 1, for accommodating detection solution, reaction kettle 1 is equipped with temperature adjusted and controlled 4, plugs temperature in reaction kettle 1
Sensor 42；
Electrode structure 2, including the planar positive electrode 211 and planar negative electrode 212 being oppositely arranged, 211 He of planar positive electrode
Side wall of the planar negative electrode 212 with reaction kettle 1 is set in parallel；Electrode structure 2 further includes the needle-shaped positive electrode being oppositely arranged
221 and needle-shaped negative electrode 222；Needle-shaped positive electrode 221, needle-shaped negative electrode 222 and planar positive electrode 211, planar negative electrode 212 are in
Circumferentially staggered setting；Needle-shaped positive electrode 221, needle-shaped negative electrode 222, planar positive electrode 211 and planar negative electrode 212 are suspended in instead
It answers in kettle 1 and can be inserted in detection solution；
Electrical impedance instrument 3, for applying excitation electrical field signal, planar positive electricity to planar positive electrode 211 and planar negative electrode 212
Pole 211 and planar negative electrode 212 constitute excitation electrode, make to detect generation electric field in solution；And electrical impedance instrument 3 can be in needle-shaped positive electricity
Measurement receives the response electric signal of detection solution on pole 221 and needle-shaped negative electrode 222；
Data acquisition unit 8 and control display unit 6, temperature sensor 42 are electrically connected with data acquisition unit 8, and data are adopted
Collection unit 8, temperature adjusted and controlled 4 and electrical impedance instrument 3 are electrically connected with control display unit, and control display unit can show output
Detect the electrical impedance spectrum and temperature curve of solution.
In the crystallization process of the utility model in the electrical impedance spectrometry on-line measurement device 100 of crystal grain size, the dress
Method used in setting is electrical impedance spectrometry, i.e., is placed on crystallization process detection solution (crystal to one using electrical impedance instrument
Grain suspension) in electrode structure apply AC field pumping signal, and measure the response electric signal of crystal grain suspension, control
Display unit processed forms electrical impedance spectrum by the data that electrical impedance instrument 3 transmits, and is fitted analysis to the data measured, obtains electricity
The relaxation frequency of impedance spectrum, further according to the functional relation of relaxation frequency and particle size, to obtain the crystal grain in crystallization process big
It is small, the changing rule of crystal grain size in solution crystallization process is obtained eventually by on-line checking.
In the crystallization process of the utility model in the electrical impedance spectrometry on-line measurement device 100 of crystal grain size, use
Electrical impedance spectrometry obtains crystallization according to the electrical impedance spectrum analysis that detection obtains to solution progress on-line checking is detected in crystallization process
The changing rule of crystal grain size in the process provides important foundation accurately to control and monitor crystallization process；This is practical new
In the crystallization process of type in the electrical impedance spectrometry on-line measurement device 100 of crystal grain size, the planar as excitation electrode is just
Electrode 211 and 212 area of planar negative electrode are larger, can produce more uniform electric field, reduce due to electric field unevenly caused by
Measurement error；The polarity effect that electrode structure can be effectively reduced simultaneously, improves the precision of measurement；The crystallization of the utility model
In journey in the electrical impedance spectrometry on-line measurement device 100 of crystal grain size, temperature adjusted and controlled 4 can heat or freeze to regulate and control instead
The temperature in kettle 1 is answered, it is made to meet the crystallization temperature requirement of detection solution；Crystal grain ruler in the crystallization process of the utility model
Very little electrical impedance spectrometry on-line measurement 100 structures of device are simple, and measurement result is accurate and measurement process is reliable and stable, convenient for real
It applies.
In a specific embodiment of the utility model, needle-shaped positive electrode 221, needle-shaped negative electrode 222 and planar positive electrode
211, planar negative electrode 212 is stainless steel electrode；Needle-shaped positive electrode 221, needle-shaped negative electrode 222 diameter be 0.4mm~
1.0mm, needle-shaped positive electrode 221, needle-shaped negative electrode 222 length determined according to the height for detecting solution in reaction kettle, generally
At least need to guarantee that the 1/3 of electrode length immerses in solution；Planar positive electrode 211, planar negative electrode 212 length according to reaction
The height of solution is detected in kettle to determine, generally at least needs to guarantee that the 1/3 of electrode length is immersed in solution.
As shown in Figure 1, in the present embodiment, the cylindrical setting of reaction kettle, planar positive electrode and planar negative electrode are equal
For arc surface electrode, the radian of planar positive electrode and planar negative electrode is set with the side wall radian of reaction kettle in identical (or similar)
It sets, i.e. the side wall of planar positive electrode and planar negative electrode and reaction kettle is set in parallel, to guarantee to generate more uniform electricity
, reduce due to electric field it is uneven caused by measurement error；The polarity effect of electrode structure can be effectively reduced simultaneously, improved and surveyed
The precision of amount.
Further, as shown in Figure 1, reaction kettle 1 is the double layer jacket structure reaction kettle that can be sealed, the one of the utility model
In specific embodiment, reaction kettle 1 is glass jacket reaction kettle, and transparent side wall glass is conducive to observation experiment process；Reaction kettle 1 wraps
The inner tube wall 11 and outer tube wall 12 for including the setting of coaxial and spaced radial constitute tempered water and accommodate between inner tube wall 11 and outer tube wall 12
The first discharge outlet 121 is arranged in chamber 13, the top of outer tube wall 12, and the first water inlet 122, the temperature adjustment water capacity is arranged in the lower part of outer tube wall 12
It receives and is equipped with tempered water in chamber 13, the detection solution temperature in reaction kettle 1 is adjusted and is controlled, meet detection solution crystallization
Temperature requirements；To meet reaction kettle temperature adjustment demand, tempered water is in recurrent state, first water inlet of the tempered water through lower part
122 enter tempered water accommodating chamber 13, and the discharge of the first discharge outlet 121 through top；Seal base is arranged in the bottom of reaction kettle 1
14, top pressure closure, planar positive electrode 211, planar negative electrode 212, needle-shaped positive electrode is removedly arranged in the top of reaction kettle 1
221 and the top of needle-shaped negative electrode 222 be connected on top pressure closure.
Further, it as shown in Figure 1, temperature adjusted and controlled 4 includes heating refrigeration cycle device 41, heats in refrigeration cycle device 41
Temperature control water cavity is set, heats and the second water inlet 411 being connected to temperature control water cavity and the second discharge outlet is set on refrigeration cycle device
412, the second discharge outlet 412 is connected to setting with the first water inlet 122, and the second water inlet 411 is connected to the first discharge outlet 121 and sets
It sets, in a specific embodiment of the utility model, the second discharge outlet 412 is connected to by rubber tube with the first water inlet 122, the
Two water inlets 411 are connected to by rubber tube with the first discharge outlet 121.
Setting can regulate and control the temperature controller of temperature control water cavity temperature, temperature controller and control in heating refrigeration cycle device 41
Display unit electrical connection.Tempered water recycles between heating refrigeration cycle device 41 and the tempered water accommodating chamber 13 of reaction kettle 1, water temperature
It can accurately be controlled by the temperature controller in heating refrigeration cycle device, the temperature of detection solution can pass through tune in reaction kettle 1
Raising and reducing for water temperature is controlled in warm water accommodating chamber 13.
In a specific embodiment of the utility model, temperature sensor is Pt100 temperature sensor, can on-line measurement knot
The other end of the temperature of brilliant solution, temperature sensor is connected by conducting wire with data acquisition unit 8, and temperature data is transferred to control
Display unit processed.It controls display unit and heating refrigeration cycle device 41 is controlled by received temperature data, followed by heating refrigeration
Ring device 41 controls tempered water to control the rate of temperature fall of detection solution to generate crystallization.
Further, as shown in Figure 1, the electrical impedance spectrometry on-line measurement device 100 of crystal grain size is gone back in crystallization process
Including transmissometer 5, the setting of one end of transmissometer 5 can be inserted in the turbidity probe tip 51 of detection turbidity in detection solution, transmissometer 5 with
Data acquisition unit 8 is electrically connected.When the turbidity that transmissometer 5 measures detection solution increases, illustrate that detecting solution has begun production
Raw crystallization.
Further, the electrical impedance spectrometry on-line measurement device 100 of crystal grain size further includes that magnetic force stirs in crystallization process
Device 7 is mixed, reaction kettle 1 is set on the top surface of magnetic stirring apparatus 7.Magnetic stirring apparatus 7 is used to provide stirring to detection solution, makes to examine
Solution each section is surveyed to be uniformly mixed.
Further, the temperature data and transmissometer 5 of 8 energy temperature collection sensor of data acquisition unit, 42 output export turbid
Temperature data and turbidity data can be transferred to control display unit 6, record detection solution knot by degree evidence, data acquisition unit 8
The variation of temperature and turbidity during crystalline substance；Control display unit 6 is made of computer, and control display unit 6 controls temperature regulation
Structure is in heated condition or refrigerating state, so that it is met the temperature requirements of detection solution crystallization, and control display unit 6 can regulate and control
The adjusted and controlled rate of heat addition of temperature and rate of temperature fall；Control display unit 6 can export electrical impedance spectrum, the temperature of display detection solution
It writes music line and Haze curve.Data that control display unit 6 is transmitted by electrical impedance instrument 3 (including excitation electrical field signal and
Respond electric signal) electrical impedance spectrum is formed, for analyzing crystalline particle size, control display unit 6 intends the data measured
Analysis is closed, the relaxation frequency of electrical impedance spectrum is obtained, is obtained further according to the functional relation (prior art) of relaxation frequency and particle size
Crystal grain size into crystallization process obtains the change of crystal grain size in solution crystallization process eventually by on-line checking
Law.According to experimental data it is found that crystal grain size increases in crystallization process, impedance relaxation frequency is reduced.
The user of the electrical impedance spectrometry on-line measurement device 100 of crystal grain size in the crystallization process of the utility model
Method is as follows:
It will test solution merging reaction kettle 1, by planar positive electrode 211, planar negative electrode 212, needle-shaped positive electrode 221 and needle
The top of shape negative electrode 222 is connected on top pressure closure, top pressure closure is sealedly attached to the top of reaction kettle 1, at this time planar
Positive electrode 211, planar negative electrode 212, needle-shaped positive electrode 221 and needle-shaped negative electrode 222 are inserted in detection solution；Temperature is passed
In the turbidity probe tip 51 of sensor 42 and transmissometer 5 insertion detection solution；Electrical impedance instrument 3 is opened, to planar positive electrode 211 and planar
Negative electrode 212 applies excitation electrical field signal, makes to detect formation electric field in solution, then pass through needle-shaped positive electrode 221 and needle-shaped negative electricity
The response electric signal of the measurement of pole 222 detection solution passes through control display unit adjustment heating refrigeration cycle device according to experiment needs
41 temperature (according to the real time temperature for the temperature data control heating refrigeration cycle device 41 that temperature sensor is passed back), and make temperature adjustment
Water enters in the tempered water accommodating chamber 13 of reaction kettle 1, makes detection solution cooling start to crystallize, 8 temperature collection of data acquisition unit
The turbidity data for temperature data and transmissometer 5 output that sensor 42 exports simultaneously is transferred to control display unit, record inspection in real time
Survey the variation of temperature and turbidity in solution crystallization process；3 real-time detection of electrical impedance instrument response electric signal is simultaneously transferred to control display
Unit, data (including excitation electrical field signal and response electric signal) shape that control display unit is transmitted by electrical impedance instrument 3
It is composed at electrical impedance, analyzes crystalline particle size, control display unit is fitted analysis to the data measured, obtains electrical impedance spectrum
Relaxation frequency, obtain the crystal in crystallization process further according to the functional relation (prior art) of relaxation frequency and particle size
Grain size, the changing rule of crystal grain size in solution crystallization process is obtained eventually by on-line checking.
From the above mentioned, the electrical impedance spectrometry on-line measurement of crystal grain size fills in crystallization process provided by the utility model
It sets and has the following beneficial effects:
In the crystallization process of the utility model in the electrical impedance spectrometry on-line measurement device 100 of crystal grain size, use
Electrical impedance spectrometry obtains crystallization according to the electrical impedance spectrum analysis that detection obtains to solution progress on-line checking is detected in crystallization process
The changing rule of crystal grain size in the process provides important foundation accurately to control and monitor crystallization process；This is practical new
In the crystallization process of type in the electrical impedance spectrometry on-line measurement device 100 of crystal grain size, the planar as excitation electrode is just
Electrode 211 and 212 area of planar negative electrode are larger, can produce more uniform electric field, reduce due to electric field unevenly caused by
Measurement error；The polarity effect that electrode structure can be effectively reduced simultaneously, improves the precision of measurement；The crystallization of the utility model
In journey in the electrical impedance spectrometry on-line measurement device 100 of crystal grain size, temperature adjusted and controlled 4 can heat or freeze to regulate and control instead
The temperature in kettle 1 is answered, it is made to meet the crystallization temperature requirement of detection solution；Crystal grain ruler in the crystallization process of the utility model
Very little electrical impedance spectrometry on-line measurement 100 structures of device are simple, and measurement result is accurate and measurement process is reliable and stable, convenient for real
It applies.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the conceptions and principles of the utility model
Change and modify, should belong to the range of the utility model protection.
Claims (7)
1. the electrical impedance spectrometry on-line measurement device of crystal grain size in a kind of crystallization process, which is characterized in that including,
Reaction kettle, for accommodating detection solution, the reaction kettle is adjusted and controlled equipped with temperature, plugs temperature in the reaction kettle
Sensor；
Electrode structure, including the planar positive electrode and planar negative electrode being oppositely arranged, the planar positive electrode and the planar are negative
Side wall of the electrode with the reaction kettle is set in parallel；The electrode structure further includes the needle-shaped positive electrode and needle being oppositely arranged
Shape negative electrode；The needle-shaped positive electrode, the needle-shaped negative electrode and the planar positive electrode, the planar negative electrode are handed in circumferential
Mistake setting；The needle-shaped positive electrode, the needle-shaped negative electrode, the planar positive electrode and the planar negative electrode are suspended in reaction
In kettle and it can be inserted in detection solution；
Electrical impedance instrument, for applying excitation electrical field signal, and the resistance to the planar positive electrode and the planar negative electrode
Anti- instrument can measure the response electric signal for receiving detection solution on the needle-shaped positive electrode and the needle-shaped negative electrode；
Data acquisition unit and control display unit, the temperature sensor are electrically connected with the data acquisition unit, the number
It is electrically connected with the control display unit according to acquisition unit, the adjusted and controlled and described electrical impedance instrument of the temperature, the control
Display unit can show the electrical impedance spectrum and temperature curve of output detection solution.
2. the electrical impedance spectrometry on-line measurement device of crystal grain size, feature in crystallization process as described in claim 1
It is, the cylindrical setting of reaction kettle, the planar positive electrode and the planar negative electrode are arc surface electrode.
3. the electrical impedance spectrometry on-line measurement device of crystal grain size, feature in crystallization process as described in claim 1
It is, the reaction kettle is the double layer jacket structure reaction kettle that can be sealed, and the reaction kettle includes that coaxial and spaced radial is arranged
Inner tube wall and outer tube wall, between the inner tube wall and the outer tube wall constitute tempered water accommodating chamber, the top of the outer tube wall
First discharge outlet is set, and the first water inlet is arranged in the lower part of the outer tube wall；Seal base, institute is arranged in the bottom of the reaction kettle
Top pressure closure, the planar positive electrode, the planar negative electrode, the needle-shaped positive electricity is removedly arranged in the top for stating reaction kettle
It is connected on the top pressure closure at the top of pole and the needle-shaped negative electrode.
4. the electrical impedance spectrometry on-line measurement device of crystal grain size, feature in crystallization process as claimed in claim 3
It is, the adjusted and controlled temperature includes heating refrigeration cycle device, and temperature control water cavity is arranged in the heating refrigeration cycle device, described
The second water inlet being connected to the temperature control water cavity and the second discharge outlet, second discharge outlet are set on heating refrigeration cycle device
Setting is connected to first water inlet, second water inlet is connected to setting, the heating refrigeration with first discharge outlet
Setting can regulate and control the temperature controller of temperature control water cavity temperature, the temperature controller and control display unit electricity in circulator
Connection.
5. the electrical impedance spectrometry on-line measurement device of crystal grain size, feature in crystallization process as described in claim 1
It is, the electrical impedance spectrometry on-line measurement device of crystal grain size further includes transmissometer in the crystallization process, the turbidity
One end setting of instrument can be inserted in the turbidity probe tip of detection turbidity in detection solution, the transmissometer and the data acquisition unit
Electrical connection.
6. the electrical impedance spectrometry on-line measurement device of crystal grain size, feature in crystallization process as described in claim 1
It is, the electrical impedance spectrometry on-line measurement device of crystal grain size further includes magnetic stirring apparatus in the crystallization process, described
Reaction kettle is set on the top surface of the magnetic stirring apparatus.
7. the electrical impedance spectrometry on-line measurement device of crystal grain size, feature in crystallization process as claimed in claim 5
It is, the data acquisition unit can acquire the temperature data of the temperature sensor output and the turbidity of transmissometer output
Temperature data and turbidity data can be transferred to the control display unit by data, the data acquisition unit, and the control is aobvious
It is adjusted and controlled in heated condition or refrigerating state to show that unit controls the temperature, and the control display unit can regulate and control the temperature
Spend the adjusted and controlled rate of heat addition and rate of temperature fall；It is described control display unit can export display detection solution electrical impedance spectrum,
Temperature curve and Haze curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821178091.8U CN208420630U (en) | 2018-07-24 | 2018-07-24 | The electrical impedance spectrometry on-line measurement device of crystal grain size in crystallization process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821178091.8U CN208420630U (en) | 2018-07-24 | 2018-07-24 | The electrical impedance spectrometry on-line measurement device of crystal grain size in crystallization process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030303A (en) * | 2018-07-24 | 2018-12-18 | 中国石油大学(北京) | The electrical impedance spectrometry on-line measurement device of crystal grain size in crystallization process |
| CN111537408A (en) * | 2020-05-19 | 2020-08-14 | 北京林业大学 | Method for online determination of particle size of particulate matter in water environment |
-
2018
- 2018-07-24 CN CN201821178091.8U patent/CN208420630U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030303A (en) * | 2018-07-24 | 2018-12-18 | 中国石油大学(北京) | The electrical impedance spectrometry on-line measurement device of crystal grain size in crystallization process |
| CN111537408A (en) * | 2020-05-19 | 2020-08-14 | 北京林业大学 | Method for online determination of particle size of particulate matter in water environment |
| CN111537408B (en) * | 2020-05-19 | 2023-04-07 | 北京林业大学 | Method for online determination of particle size of particulate matter in water environment |
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