Film mass transfer device and detection method thereof

Abstract

The invention discloses a thin film mass transfer device and a detection method thereof, and relates to the technical field of thin film mass transfer devices.The thin film mass transfer device comprises a base, a solution pool, a rotary connecting structure, a detection structure, a data processing assembly, a liquid level detection structure and a temperature control unit, the bottom of the base is a horizontal plane, and the base serves as a supporting structure of the mass transfer device; the top of the base is at least fixedly connected with one lifting structure, the lifting structure is provided with a lifting part, the interior of the solution tank is divided into a first solution cavity and a second solution cavity by a filtering film, and the first solution cavity and the second solution cavity can be used as loading structures of a solution to be detected and a solvent respectively. The filtering capacity of the filtering film is improved by abandoning a traditional pressurizing mode, the solute filtering effect of the filtering film can be effectively guaranteed, the film is prevented from being deformed and damaged, meanwhile, reagent consumption is reduced, and the use stability and reliability of the film mass transfer device are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of thin film mass transfer devices, in particular to a thin film mass transfer device and a detection method thereof. Background Art

[0002] Membrane separation technology can effectively achieve the interception or selective screening of target solutes, and has the characteristics of good selectivity, simple operation, and no secondary pollution. With the rapid development of membrane separation technology, its application has expanded from early desalination and water treatment to resource recovery, ultrapure separation and other fields in chemical, petroleum, metallurgy, electronics, energy, medicine and other industrial fields.

[0003] Pressure-driven membrane separation technologies such as microfiltration, ultrafiltration, nanofiltration, and reverse osmosis mainly use the pressure difference on both sides of the membrane as the driving force, and intercept solute molecules of different sizes in the solution through mechanisms such as size screening, thereby achieving the purpose of purification and separation. However, in the experimental stage of testing membrane separation efficiency, the speed of solute passing through the filter membrane is often accelerated by pressurization. On the one hand, it is not conducive to increasing the contact area between the solute and the filter membrane. On the other hand, since the membrane is subjected to a large pressure per unit area, it is easy to be deformed and damaged, which is not conducive to maintaining the stability of the membrane filtration process. Summary of the invention

[0004] The object of the present invention is to provide a thin film mass transfer device and a detection method thereof which can expand the contact area between the solute and the filter membrane, so as to solve the problems raised in the above-mentioned background technology.

[0005] On the one hand, to achieve the above-mentioned purpose, the present invention provides a thin film mass transfer device, including a base, a solution pool, a rotating connection structure, a detection structure, a data processing component, a liquid level detection structure and a temperature control unit; the bottom of the base is a horizontal plane, and the base serves as a supporting structure of the mass transfer device, which can support and bear the weight of the mass transfer device, and the top of the base is fixedly connected with at least one lifting structure, and the lifting structure has a lifting component, which can adjust the height of the first center rod and the second center rod penetrating into the first solution cavity and the second solution cavity respectively, and adjust the liquid level by increasing the volume of the solid content in the first solution cavity and the second solution cavity, so that the liquid level in the first solution cavity or the second solution cavity can rise rapidly, thereby increasing the contact area between the solution in the first solution cavity and the second solution cavity and the filter membrane, so as to improve the filtration efficiency of specific solutes in the solution and save the membrane filtration time; the solution pool serves as a component for containing solution or solvent, and can be made of glass or ceramic material, and the interior of the solution pool is divided into the first solution cavity and the second solution cavity by the filter membrane, and the first solution cavity and the second solution cavity can be used as loading structures for the solution to be tested and the solvent, respectively, so that the filtered solute can be loaded by the first solution cavity and the second solution cavity. The solution cavity passes through the filter membrane and enters the second solution cavity for retention; the rotating connection structure can connect the first center rod and the second center rod, and can adjust the angle of the connecting rod by rotation to prevent affecting the adaptive connection between the first center rod and the second center rod and the first solution cavity and the second solution cavity; one end of the rotating connection structure is detachably connected with an extrusion component, and the extrusion component adjusts the liquid level by adjusting the length of the extrusion component penetrating into the solution pool; the extrusion component includes the first center rod and the second center rod, and the first center rod and the second center rod can quickly affect the liquid level in the first solution cavity and the second solution cavity by adjusting the height of the first solution cavity and the second solution cavity, so as to increase the contact area between the solution and the filter membrane; the sides of the first center rod and the second center rod are respectively connected with electrode probe assemblies through positioning piles, and the electrode probe assemblies can monitor the concentration and temperature of the solution solute in the solution or solvent, so as to characterize the filtration efficiency of the filter membrane; the data processing assembly is electrically connected to the detection structure, and can collect, process and output the solution concentration and temperature data monitored by the electrode probe assembly; the liquid level detection structure is fixed on the top of the first center rod and the second center rod.

[0006] As a further solution of the present invention: an anti-skid pad is welded at the bottom of the base, which can support and prevent the bottom of the base from skidding; the temperature control unit is a temperature control groove, and the temperature control groove is welded at the middle of the top of the base; the temperature control groove includes a groove body with a depression on the inner wall and a temperature controller fixed on the depression; the temperature controller further adjusts the temperature of the solution in the solution pool by adjusting the temperature of the solution pool; a support platform adapted to the temperature control groove is fixed to the bottom of the solution pool; the contact portion of the temperature control groove and the support platform is fixedly connected; the lifting structure is symmetrically fixed at the two ends of the top of the base, wherein the lifting structure is a telescopic cylinder, which can adjust the height of the first center rod and the second center rod.

[0007] As a further solution of the present invention: the rotating connection structure includes a servo fixed to the top of the lifting structure, the input end of the servo is electrically connected to an external power supply, the output end of the servo is connected to a connecting rod, one end of the connecting rod is movably connected to a connecting tube through a bearing, and the servo can adjust the horizontal placement angle of the connecting rod to facilitate the detachable connection with the connecting column through the connecting tube.

[0008] As a further solution of the present invention: the first center rod is coaxially matched with the first solution cavity, the side surface of the first center rod and the inner wall of the first solution cavity form a liquid level observation cavity, the liquid level observation cavity is loaded with solution or solvent, so that the liquid level sensor can monitor the liquid level height of the solution or solvent, the bottom of the first center rod and the second center rod are respectively fixed with a first bottom plate and a second bottom plate, the first bottom plate and the second bottom plate can be used as monitoring reference components of the liquid level sensor corresponding to them, and the liquid level height of the solution or solvent can be quickly calculated by monitoring the changes of the liquid level with the liquid level sensor, and the bottom of the first center rod and the second center rod are respectively coaxially provided with grooves, and the depth of the grooves is less than the height of the first center rod or the second center rod.

[0009] As a further solution of the present invention: a motor is fixed to the bottom of the solution pool facing the first solution chamber and the second solution chamber respectively, the output ends of the two motors are respectively connected to stirring rods, a plurality of bumps are welded on the surface of the stirring rods, the cross-sectional length of the stirring rods and the bumps is smaller than the diameter of the groove, and the motor is started, and the output end of the motor can stir the solution or solvent loaded in the first solution chamber and the second solution chamber through the stirring rod.

[0010] As a further solution of the present invention: the electrode probe assembly includes an electrode, a conductivity probe and a temperature probe, the electrode, the conductivity probe and the temperature probe are respectively fixedly connected to a corresponding positioning pile, the bottom surface of the electrode probe assembly is coplanar with the bottom surfaces of the first bottom plate and the second bottom plate, and the electrode probe assembly serves as a monitoring structure for the solution and can monitor the concentration and temperature of the solution.

[0011] As a further solution of the present invention: the side of the solution pool is formed with an outer protrusion, the number of the outer protrusions is equal to the number of probes, the cavity formed by the outer protrusion and the solution pool is connected to the interior of the first solution cavity or the second solution cavity, and the outer protrusion serves as a limiting structure of the positioning pile, which can further maintain the moving path of the first center rod or the second center rod through the limiting positioning pile.

[0012] As a further solution of the present invention: a connecting column is respectively welded to the top of the first center rod or the second center rod, the connecting column and the connecting tube are detachably connected, a data interface is respectively provided on the top of the first center rod or the second center rod, the liquid level detection structure is a liquid level sensor, and matching threads are respectively provided inside the connecting column and the connecting tube so that the two can be threadedly connected, which is beneficial to improving the convenience and stability of the connection between the connecting column and the connecting tube, and the connecting column and the connecting tube can also be a connecting structure that is compatible and snap-fitted to each other.

[0013] As a further solution of the present invention: the data processing component includes a data line, a data acquisition component and a computer electrically connected to the data acquisition component, the data line includes a plurality of connectors, the data line is respectively connected to the data interface adapter through the plurality of connectors, the data acquisition component is used to collect the electrochemical parameters input by the electrode probe assembly, and complete the output, display and storage of the numerical values, the data acquisition component transmits the collected data to the computer, so that the computer can process the data through the corresponding data processing software.

[0014] On the other hand, a detection method for a thin film mass transfer device is also provided, the detection method comprising: The support table is connected to the temperature control tank by an adapter, so that the solution pool is fixedly connected to the base, and the bottom of the solution pool is supported by the base; A certain volume of test solution is introduced into the first solution chamber and the second solution chamber respectively, wherein the mixed solution contains a solute to be filtered; The first center rod and the second center rod are placed in the first solution cavity and the second solution cavity respectively, and the detection end of the electrode probe assembly is immersed in the solution or solvent; Connect the data line to the data interface to facilitate the transmission of detection data; Start the servo, adjust the angle of the connecting rod through the output end of the servo, and place the connecting pipe directly against the connecting column. The servo can adjust the angle of the connecting rod in the horizontal direction. The lifting structure is started, so that the lifting structure pulls the connecting pipe to connect with the connecting column coaxially, and the connecting pipe is rotated and fixed with the connecting column thread. The lifting structure can pull the connecting pipe to move, and further drive the first center rod and the second center rod to move in the vertical direction; Turn on the data acquisition component and the computer, start testing, and enter the testing state.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention abandons the traditional method of increasing the filtration capacity of the filtration membrane by pressurizing, which can effectively ensure the solute filtration effect of the filtration membrane, prevent the membrane from deformation and damage, and reduce reagent consumption, which can greatly improve the use stability and reliability of the membrane mass transfer device.

[0016] 2. The present invention adjusts the liquid level by increasing the volume of the solid contents in the first solution chamber and the second solution chamber, which can quickly increase the liquid level in the first solution chamber or the second solution chamber, thereby increasing the contact area between the solution in the first solution chamber and the second solution chamber and the filter membrane, so as to improve the filtration efficiency of specific solutes in the solution and save membrane filtration time.

[0017] 3. The present invention forms a liquid level observation cavity through the side of the first center rod and the inner wall of the first solution cavity, which is convenient for the liquid level sensor to monitor the liquid level height of the solution or solvent. The first bottom plate and the second bottom plate are respectively fixed to the bottom of the first center rod and the second center rod. The first bottom plate and the second bottom plate can be used as monitoring reference components of the corresponding liquid level sensors. By monitoring the changes in the liquid level with the liquid level sensor, the liquid level height of the solution or solvent can be quickly calculated.

[0018] 4. In the present invention, since the first central rod and the second central rod occupy a part of the volume of the internal space of the solution pool, the actual amount of reagent required is reduced, the amount of reagent is reduced, waste is avoided, and it is beneficial to resource conservation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 A structural diagram is provided for the groove of the present invention; Figure 3 It is a partial exploded structural diagram of the present invention; Figure 4 It is a structural diagram of the solution pool of the present invention; Figure 5 is a cross-sectional view of a solution tank of the present invention; Figure 6 It is a lifting structure diagram of the present invention.

[0020] In the figure: 1, base; 101, anti-slip mat; 102, temperature control unit; 2, support platform; 3, solution pool; 4, first solution chamber; 5, second solution chamber; 501, convex part; 6, filter membrane; 7, first center rod; 701, positioning pile; 702, electrode probe assembly; 703, groove; 704, first bottom plate; 8, connecting column; 9, second center rod; 901, liquid level sensor; 902, second bottom plate; 903, data interface; 10, data line; 11, data acquisition component; 12, computer; 13, motor; 14, stirring rod; 15, servo; 16, connecting rod; 17, bearing; 18, connecting pipe; 19, lifting structure. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1 The figure shows a three-dimensional structural diagram of the present invention, which provides a thin film mass transfer device, including a base 1, a solution pool 3, a rotating connection structure, a detection structure, a data processing component, a liquid level detection structure and a temperature control unit 102; the temperature control unit 102 is used to adjust the temperature of the solution pool, the bottom of the base 1 is a horizontal plane, the base 1 is used as a supporting structure of the mass transfer device, and can support and bear the mass transfer device, and the top of the base 1 is at least fixedly connected to a lifting structure 19, the lifting structure 19 has a lifting component, and can adjust the height of the first center rod 7 and the second center rod 9 respectively penetrating into the first solution cavity 4 and the second solution cavity 5, and adjust the liquid level by increasing the volume of the solid content in the first solution cavity 4 and the second solution cavity 5; The temperature control unit 102 is a temperature control tank, which includes a tank body with a depression on the inner wall and a temperature controller fixed on the depression. The temperature control unit 102 is fixed at the bottom end of the base 1. The temperature controller adjusts the temperature of the solution pool by adjusting the temperature of the solution pool and then adjusts the solution temperature of the solute in the solution pool. The temperature controller used is the prior art. By increasing the depth of the first center rod 7 and / or the second center rod 9 penetrating into the first solution cavity 4 and / or the second solution cavity 5, the contact area between the solution in the first solution cavity 4 and the second solution cavity 5 and the filter film 6 can be increased, so as to improve the filtration efficiency of specific solutes in the solution and save the membrane filtration time; the solution pool 3, as a component for containing a solution or solvent, can be made of glass or ceramic material. The interior of the solution pool 3 is divided into the first solution cavity 4 and the second solution cavity 5 by the filter film 6. The first solution cavity 4 and the second solution cavity 5 can be used as loading structures for the solution to be tested and the solvent, respectively, so that the filtered solute can pass through the filter film 6 from the first solution cavity 4 into the second solution cavity 5 for retention.

[0023] like Figure 6 The figure shows the lifting structure diagram of the present invention. The rotating connection structure can connect the first center rod 7 and the second center rod 9. At the same time, the angle of the connecting rod 16 can be adjusted by rotation to prevent affecting the adaptive connection between the first center rod 7 and the second center rod 9 and the first solution chamber 4 and the second solution chamber 5. The rotating connection structure includes a steering gear 15 fixed to the top of the lifting structure 19. The input end of the steering gear 15 is electrically connected to an external power supply. The output end of the steering gear 15 is connected to the connecting rod 16. One end of the connecting rod 16 is movably connected to a connecting pipe 18 through a bearing 17. The steering gear 15 can adjust the horizontal placement angle of the connecting rod 16, so that it can be detachably connected to the connecting column 8 through the connecting pipe 18. One end of the rotating connection structure is detachably connected to an extrusion component, and the extrusion component is adjusted by adjusting the length of penetration into the solution pool 3. To adjust the liquid level, the extrusion component includes a first center rod 7 and a second center rod 9. The first center rod 7 and the second center rod 9 can quickly affect the liquid level in the first solution cavity 4 and the second solution cavity 5 by penetrating the height in the first solution cavity 4 and the second solution cavity 5, so as to increase the contact area between the solution and the filter membrane 6; the sides of the first center rod 7 and the second center rod 9 are respectively connected with an electrode probe assembly 702 through a positioning pile 701, and the electrode probe assembly 702 can monitor the solute concentration in the solution or solvent, so as to judge the filtration efficiency of the filter membrane 6; the data processing assembly is electrically connected to the detection structure, and can collect, process and output the solute concentration data monitored by the electrode probe assembly 702; the liquid level detection structure is fixed on the top of the first center rod 7 and the second center rod 9.

[0024] Preferably, an anti-skid pad 101 is welded to the bottom of the base 1, which can support and prevent the bottom of the base 1 from slipping. A support platform 2 adapted to the temperature control groove is fixed to the bottom of the solution pool 3, and the temperature control groove can be connected to the side of the support platform 2 by screws. The lifting structure 19 is symmetrically fixed at both ends of the top of the base 1, wherein the lifting structure 19 is a telescopic cylinder, which can adjust the height of the first center rod 7 and the second center rod 9.

[0025] like Figure 2 The figure shows the groove opening structure diagram of the present invention, the first center rod 7 is coaxially matched with the first solution cavity 4, the side surface of the first center rod 7 and the inner wall of the first solution cavity 4 form a liquid level observation cavity, the liquid level observation cavity is loaded with a solution or a solvent, so that the liquid level sensor 901 can monitor the liquid level height of the solution or the solvent, the first center rod 7 and the second center rod 9 are respectively fixed with a first bottom plate 704 and a second bottom plate 902 at the bottom, the first bottom plate 704 and the second bottom plate 902 can be used as monitoring reference components of the liquid level sensor 901 corresponding thereto, and the liquid level height of the solution or the solvent can be quickly calculated by monitoring the change of the liquid level with the liquid level sensor 901, the first center rod 7 and the second center rod 9 are respectively coaxially opened with a groove 703 at the bottom, and the depth of the groove 703 is less than the height of the first center rod 7 or the second center rod 9.

[0026] like Figure 5 The figure shows a cross-sectional view of the solution pool of the present invention, wherein a motor 13 is fixed to the bottom of the solution pool 3 facing the first solution chamber 4 and the second solution chamber 5 respectively, and the output ends of the two motors 13 are respectively connected to stirring rods 14, and a plurality of bumps are welded on the surface of the stirring rods 14, and the cross-sectional length of the stirring rods 14 and the bumps is smaller than the diameter of the groove 703. When the motor 13 is started, the output end of the motor 13 can stir the solution or solvent loaded in the first solution chamber 4 and the second solution chamber 5 through the stirring rod 14.

[0027] Preferably, the electrode probe assembly 702 includes an electrode, a conductivity probe and a temperature probe, which are respectively fixedly connected to a corresponding positioning pile 701. The bottom surface of the electrode probe assembly 702 is coplanar with the bottom surfaces of the first bottom plate 704 and the second bottom plate 902. The electrode probe assembly 702 serves as a monitoring structure for solutes in the solution and can monitor the solute concentration and temperature in the solution or solvent.

[0028] like Figure 4As shown is the solution pool structure diagram of the present invention, the side of the solution pool 3 is formed with an outer protrusion 501, the number of the outer protrusions 501 is equal to the number of probes, the cavity formed by the outer protrusion 501 and the solution pool 3 is connected to the interior of the first solution cavity 4 or the second solution cavity 5, and the outer protrusion 501 serves as a limiting structure of the positioning pile 701, which can further maintain the moving path of the first center rod 7 or the second center rod 9 through the limiting positioning pile 701.

[0029] like Figure 3 The figure shows a partial exploded structure diagram of the present invention. A connecting column 8 is respectively welded to the top of the first center rod 7 or the second center rod 9, and the connecting column 8 is detachably connected to the connecting tube 18. A data interface 903 is respectively provided on the top of the first center rod 7 or the second center rod 9. The liquid level detection structure is a liquid level sensor 901. The connecting column 8 and the connecting tube 18 are respectively provided with matching threads inside so that the two can be threadedly connected, which is beneficial to improving the convenience and stability of the connection between the connecting column 8 and the connecting tube 18. The connecting column 8 and the connecting tube 18 can also be a connection structure that is mutually compatible and snap-fitted. The data processing component includes a data line 10, a data acquisition component 11, and a computer 12 electrically connected to the data acquisition component 11. The data line 10 includes a plurality of connectors, and the data line 10 is respectively compatible and connected to the data interface 903 through a plurality of connectors. The data acquisition component 11 is used to collect the electrochemical parameters input by the electrode probe component 702, and complete the output, display and storage of the numerical values. The data acquisition component 11 transmits the collected data to the computer 12, so that the computer 12 can process the data through the corresponding data processing software.

[0030] Combination Figure 1-Figure 6 , and also provides a detection method for a thin film mass transfer device, the detection method comprising: The support platform 2 is connected to the temperature control tank by an adapter, so that the solution pool 3 is fixedly connected to the base 1, and the bottom of the solution pool 3 is supported by the base 1; A certain volume of test solution is introduced into the first solution chamber 4 and the second solution chamber 5 respectively, and the mixed solution contains the solute to be filtered; The first center rod 7 and the second center rod 9 are placed in the first solution chamber 4 and the second solution chamber 5 respectively, and the detection end of the electrode probe assembly 702 is immersed in the solution or solvent; The data line 10 is connected to the data interface 903 to facilitate the transmission of the detection data; Start the steering gear 15, adjust the angle of the connecting rod 16 through the output end of the steering gear 15, and place the connecting pipe 18 directly against the connecting column 8. The steering gear 15 can adjust the angle of the connecting rod 16 in the horizontal direction; Start the lifting structure 19, so that the lifting structure 19 pulls the connecting pipe 18 to connect with the connecting column 8 coaxially, rotate the connecting pipe 18 and screw it to the connecting column 8, the lifting structure 19 can pull the connecting pipe 18 to move, and further drive the first center rod 7 and the second center rod 9 to move in the vertical direction; The data acquisition component 11 and the computer 12 are turned on, the detection is started, and the detection state is entered.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thin film mass transfer device, characterized in that: include: A base, wherein at least one lifting structure is fixedly connected to the top of the base; A solution pool, wherein the interior of the solution pool is divided into a first solution chamber and a second solution chamber by a filter membrane; A rotating connection structure, one end of which is detachably connected to an extrusion component, the extrusion component adjusts the liquid level by adjusting the length of the extrusion component penetrating into the solution pool, and the extrusion component includes a first center rod and a second center rod; The detection structure, the side surfaces of the first center rod and the second center rod are respectively connected with electrode probe assemblies through positioning piles; a data processing component, the data processing component being electrically connected to the detection structure; A liquid level detection structure, wherein the liquid level detection structure is fixed to the top of the first center rod and the second center rod; A temperature control unit is used to adjust the temperature of the solution pool.

2. A thin film mass transfer device according to claim 1, characterized in that: The temperature control unit is a temperature control tank, which includes a tank body with a depression on the inner wall and a temperature controller fixed on the depression. The temperature controller further adjusts the temperature of the solution in the solution tank by adjusting the temperature of the solution tank. An anti-slip pad is welded at the bottom of the base, and a temperature control tank is welded at the middle of the top of the base. A support platform adapted to the temperature control tank is fixed at the bottom of the solution tank, and a lifting structure is symmetrically fixed at the two ends of the top of the base, and the lifting structure is a telescopic cylinder.

3. A thin film mass transfer device according to claim 1, characterized in that: The rotary connection structure comprises a steering gear fixed to the top of the lifting structure, an output end of the steering gear is connected to a connecting rod, and one end of the connecting rod is movably connected to a connecting pipe through a bearing.

4. A thin film mass transfer device according to claim 1, characterized in that: The first center rod is coaxially adapted to the first solution cavity, the side surface of the first center rod and the inner wall of the first solution cavity form a liquid surface observation cavity, the first center rod and the second center rod are respectively fixed with a first bottom plate and a second bottom plate at the bottom, and the first center rod and the second center rod are respectively coaxially provided with grooves at the bottom, and the depth of the grooves is less than the height of the first center rod or the second center rod.

5. A thin film mass transfer device according to claim 4, characterized in that: A motor is fixed at the bottom of the solution pool facing the first solution cavity and the second solution cavity respectively, and the output ends of the two motors are respectively connected to stirring rods, and a plurality of bumps are welded on the surface of the stirring rods, and the cross-sectional length of the stirring rods and the bumps is smaller than the diameter of the groove.

6. A thin film mass transfer device according to claim 1, characterized in that: The electrode probe assembly includes an electrode, a conductivity probe and a temperature probe, which are fixedly connected to a corresponding positioning pile respectively, and the bottom surface of the electrode probe assembly is coplanar with the bottom surfaces of the first bottom plate and the second bottom plate.

7. A thin film mass transfer device according to claim 1, characterized in that: The side of the solution pool is formed with external convex parts, the number of which is equal to the number of probes, and the cavity formed by the external convex parts and the solution pool is connected to the inside of the first solution cavity or the second solution cavity.

8. A thin film mass transfer device according to claim 1, characterized in that: A connecting column is co-centrally fixedly welded to the top of the first center rod or the second center rod, and the connecting column is detachably connected to the connecting pipe. A data interface is respectively provided on the top of the first center rod or the second center rod, and the liquid level detection structure is a liquid level sensor.

9. A thin film mass transfer device according to claim 8, characterized in that: The data processing component includes a data line, a data acquisition component and a computer electrically connected to the data acquisition component. The data line includes multiple connectors, and the data line is respectively connected to the data interface adapter through the multiple connectors. The data acquisition component is used to collect the electrochemical parameters input by the electrode probe component and complete the output, display and storage of the numerical values. The data acquisition component transmits the collected data to the computer.

10. A method for detecting a thin film mass transfer device, characterized in that: Applied to the thin film mass transfer device according to any one of claims 1 to 9, the detection method comprises: Connect the support table and the temperature control tank by adapter, so that the solution pool is fixedly connected to the base; Introducing a certain volume of test solution into the first solution chamber and the second solution chamber respectively; The first center rod and the second center rod are respectively placed in the first solution cavity and the second solution cavity; Connect the data cable to the data interface adapter; Start the servo, adjust the angle of the connecting rod through the output end of the servo, and align the connecting pipe with the connecting column; Start the lifting structure, so that the lifting structure pulls the connecting pipe and the connecting column to connect coaxially, rotate the connecting pipe and fix it with the connecting column thread; Turn on the data acquisition component and computer and start testing.

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