Mixer reactor and electrothermal film precursor solution preparation method based on mixer reactor

Through the condensation reflux and multi-function stirring mechanism of the mixing reactor, the problem of evaporation affecting quality and dispersion in the preparation of the precursor of the electric heating film is solved, and efficient condensation and ultrasonic dispersion are achieved, and product quality and performance are improved.

WO2025138337A1PCT designated stage expired Publication Date: 2025-07-03FUJIAN AODUN TECHNOLOGY CO LTD
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Patent Information

Application Number
PCT/CN2024/071293
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-12-29
Filing Date
2024-01-09
Publication Date
2025-07-03

AI Technical Summary

Technical Problem

During the preparation of existing precursor liquids for electric heating films, liquid materials are prone to evaporation, resulting in increased concentration, affecting product quality. In addition, conventional reactors lack ultrasonic dispersion function, resulting in low quality controllability.

Method used

A mixing reactor is designed, including a condensation reflux mechanism and a multi-functional stirring mechanism, which refluxes the evaporated material with a condensation coil and performs ultrasonic dispersion through an ultrasonic transducer, combining an isolation casing and vibration isolation mechanism to prevent mechanical damage, improving the dispersion effect and product quality.

Benefits of technology

The condensation efficiency and ultrasonic dispersion effect of the precursor liquid of the electric heating film are improved, the product quality controllability is ensured, and the performance of the electric heating film is improved, which is specifically manifested as efficient condensation, low temperature difference and excellent electric heating performance.

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Abstract

A mixer reactor and an electrothermal film precursor solution preparation method based on the mixer reactor. The mixer reactor comprises: a reaction kettle (1); a condensation reflux mechanism (7), comprising a condensation tank (701), wherein a condensation coil (702) is coiled in the condensation tank (701), two ends of the condensation coil (702) are horizontally arranged and hermetically and rotatably mounted on two sides of the condensation tank (701), and the condensation coil (702) is driven by a coil driving motor (703); and a multifunctional stirring mechanism (13), comprising a stirring shaft (1301) and a plurality of stirring blades (1302) driven by the stirring shaft (1301), wherein the bottom of the stirring shaft (1301) is fixedly sleeved with an isolation sleeve (1303), and a corresponding cushion rubber gasket (14) is separately hermetically connected between a mounting portion (13022) of each stirring blade (1302) and a corresponding mounting hole of the isolation sleeve (1303); a corresponding blind hole (15) in a hollow state is provided on the stirring shaft (1301) above the stirring blades (1302), and an ultrasonic transducer (16) spaced from the blind hole (15) is movably mounted in the blind hole (15).
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Description

A hybrid reactor and a method for preparing an electrothermal film precursor solution based thereon Technical Field

[0001] The present invention belongs to the field of electric heating film material preparation, and specifically refers to a mixing reactor and a method for preparing an electric heating film precursor solution based on the same. Background Art

[0002] Heating film is a thin film material that converts electrical energy into thermal energy. It can be used as a heating element in household appliances, agricultural equipment, industrial equipment, military equipment, and other mechanical equipment. Compared with traditional heating elements such as resistance wire and thermocouples, heating film offers advantages such as high heat conversion efficiency, long service life, and uniform heating.

[0003] The existing preparation process of the electric heating film precursor is generally based on a conventional heating reactor. Since the raw materials of the electric heating film precursor contain many liquid raw materials, and during the preparation process, many raw materials need to be mixed and stirred at 70-80 ° C, the liquid materials in the raw materials are often in an evaporating state. As the processing progresses, the concentration of the electric heating film precursor will become higher and higher, which will significantly affect the product quality and cause the quality controllability of the preparation process of the electric heating film precursor to be relatively low, which is very troublesome.

[0004] In order to ensure the actual performance of the electric heating film precursor, the mixed materials often need to be ultrasonically dispersed during the preparation process of the electric heating film precursor. The existing conventional heating reactor does not have the ultrasonic dispersion function. The current practice is to install the ultrasonic transducer directly on the reactor body, but the position of the ultrasonic transducer is fixed, resulting in relatively poor ultrasonic dispersion effect on the material.

[0005] Therefore, the purpose of the present invention is to design a mixing reactor that can effectively and quickly condense and reflux the evaporated material, thereby improving the quality of the product and the quality controllability during the product preparation process; and can effectively improve the ultrasonic dispersion effect of the mixed material, thereby further improving the quality of the product. The preparation method of the electric heating film precursor based on the reactor is the research purpose of the present invention.

[0006] Summary of the Invention

[0007] In response to the technical problems existing in the above-mentioned prior art, the present invention provides a hybrid reactor and a method for preparing an electrothermal film precursor solution based thereon. The hybrid reactor and the method for preparing an electrothermal film precursor solution based thereon can effectively solve the technical problems existing in the above-mentioned prior art.

[0008] The technical solution of the present invention is:

[0009] A mixing reactor comprising

[0010] A reactor body, wherein the top of the reactor body is sealed and fixedly connected with a corresponding sealing cover, one side of the sealing cover is provided with a feeding port, a corresponding cover plate is installed at the feeding port and can be opened and closed, and a discharge pipe with a discharge valve is provided at the bottom of the reactor body;

[0011] The condensation reflux mechanism comprises a condensation tank body provided on the side of the cover where the feeding port is not provided, a corresponding condensation coil is coiled in the condensation tank body, two ends of the condensation coil are horizontally provided and sealed and rotatably installed on both sides of the condensation tank body, and the two ends of the condensation coil are respectively connected to a condensate inlet pipe and a condensate discharge pipe through corresponding rotary joints, a coil drive motor for driving the condensation coil to rotate is fixedly installed at one end of the condensation tank body, an air inlet pipe for sending evaporated gas into the condensation tank body, and a reflux pipe for returning the condensate to the reactor body;

[0012] The multifunctional stirring mechanism comprises a stirring shaft rotatably mounted in the middle of the cover, and a plurality of stirring blades driven by the stirring shaft, the bottom of the stirring shaft extends to the inner bottom side of the reactor body and is fixedly sleeved with a corresponding isolation sleeve, and the isolation sleeve is provided with a plurality of mounting holes corresponding to the stirring blades at equal angles; the stirring blade comprises a stirring portion arranged in a plate shape, and a mounting portion arranged in an axial shape and fixedly connected to the inner side of the stirring portion, the mounting portion passes through the mounting hole of the isolation sleeve and is fixedly connected to the stirring shaft, and the mounting of the stirring blade The part is spaced apart from the mounting hole, and corresponding buffer rubber gaskets are sealed between the mounting part of the stirring blade and the mounting hole respectively; a corresponding blind hole is hollowly provided on the stirring shaft on the upper side of the stirring blade, and an ultrasonic transducer spaced apart from the blind hole is movably installed in the blind hole, and the ultrasonic transducer is connected to the piston rod end of the driving cylinder fixedly mounted on the cover through a corresponding connecting rod, and the ultrasonic transducer is electrically connected to an external ultrasonic generator; the stirring shaft is driven by a stirring drive motor fixedly mounted on the cover.

[0013] A corresponding heating jacket is sealed and installed on the outside of the reactor body in a sandwich state. The lower part of the heating jacket is connected to a heating liquid inlet pipe, and the upper end of the heating jacket is connected to a heating liquid outlet pipe.

[0014] The two ends of the condensing coil are arranged horizontally and are rotatably mounted on both sides of the condensing tank body through corresponding sealed bearings. One end of the condensing coil is connected to the output shaft end of the coil driving motor through a gear meshing transmission.

[0015] The buffer rubber gasket is sealed and connected to the mounting portion of the stirring blade and the mounting hole of the isolation sleeve by gluing.

[0016] The top of the stirring shaft is connected to the output shaft end of the stirring drive motor through a gear meshing transmission mode.

[0017] A corresponding bracket is fixedly connected upwardly to the middle of the cover, and the cylinder body of the driving cylinder is fixedly connected to the bracket.

[0018] The connecting rod is in a hollow tubular shape, and a corresponding vibration isolation mechanism is fixedly connected downwardly to the bottom end of the connecting rod. The ultrasonic transducer is fixedly connected to the vibration isolation mechanism.

[0019] The vibration isolation mechanism comprises a vibration-damping container fixed to the bottom end of the connecting rod. The vibration-damping container is filled with a plurality of corresponding vibration-damping damping particles, and the vibration-damping damping particles are iron-based spherical particles.

[0020] A corresponding threading tube is installed longitudinally between the upper and lower ends of the vibration damping container, and a threading hole connected to the hollow part of the connecting rod is provided on the upper side of the connecting rod. The connecting wire of the ultrasonic transducer passes through the threading tube, the middle hole part of the connecting rod, and the threading hole and is connected to the external ultrasonic generator.

[0021] A method for preparing an electrothermal film precursor solution based on the above-mentioned hybrid reactor comprises the following specific steps:

[0022] S1, adding the tin solution into the reactor body, then adding the doping solution and the modifier into the tin-containing solution, and adding methanol and isopropanol as co-solvents, starting the multi-functional stirring mechanism at 70-80°C to stir and mix the materials for 30-45 minutes to obtain a doped tin-containing solution;

[0023] During the heating and stirring process, the evaporated gas enters the condensation tank along the air inlet pipe and flows back into the reactor after being condensed into liquid;

[0024] The doping solution is formed by uniformly mixing antimony trichloride, bismuth trichloride and anhydrous ethanol; the modifier is formed by uniformly mixing nickel chloride hexahydrate, manganese chloride tetrahydrate, ferric chloride hexahydrate, cuprous chloride, zinc acetate and anhydrous ethanol; the tin-containing solution is formed by mixing tin tetrachloride pentahydrate powder and anhydrous ethanol;

[0025] S2, the multifunctional stirring mechanism is stopped, a stabilizer is added to the doped tin-containing solution, and the solution is heated at a constant temperature of 65-75°C for 120 minutes. Then, the piston rod of the driving cylinder is extended to drive the ultrasonic transducer to abut against the bottom side of the blind hole of the stirring shaft, and the external ultrasonic generator and the multifunctional stirring mechanism are started. The ultrasonic vibration generated by the ultrasonic transducer is transmitted to the stirring blades through the stirring shaft and acts evenly on the material to ultrasonically disperse the material for 15 minutes;

[0026] The stabilizer is formed by uniformly mixing modified carbon nanotubes, 40% silica sol, citric acid, hydrochloric acid, acetic acid and anhydrous ethanol. The diameter of the modified carbon nanotubes is 10-30 nm. The carbon nanotubes are modified by mixed acid ultrasonic hot dipping, deionized water washing and vacuum drying. The diameter of the 40% silica sol solute is 20-25 nm.

[0027] S3, the multifunctional stirring mechanism is stopped, and the material is kept at a constant temperature of 30°C for 24-36 hours to obtain the electric heating film precursor liquid;

[0028] S4, pumping the electrothermal film precursor liquid into a corresponding storage tank for storage.

[0029] Advantages of the present invention:

[0030] 1) The condensing coil of the condensation reflux mechanism of the present invention is installed in the condensing tank body in a sealed and rotating manner, and then the condensing coil is driven by the coil driving motor to rotate, thereby greatly improving the contact rate between the condensing coil and the circulating gas. During the product preparation process, the evaporated material enters the condensing tank body through the air inlet pipe and forms an efficient contact with the rotating condensing coil, so as to be quickly condensed and attached to the outer wall of the condensing coil, thereby significantly improving the condensation efficiency of the evaporated material; and the condensing coil in a rotating state can more quickly and efficiently throw off the liquid material condensed and attached to the outer wall of the condensing coil, so that it can quickly reflux into the reactor body to participate in the mixing reaction, thereby improving the quality of the product and the quality controllability of the product preparation process.

[0031] 2) The multifunctional stirring mechanism of the present invention stirs the material normally under the drive of the stirring shaft during conventional stirring. At this time, the ultrasonic transducer is not started and does not contact the stirring shaft. When it is necessary to disperse the material, the external ultrasonic generator is started, and the ultrasonic transducer is driven by the driving cylinder to move downward and form abutment with the stirring shaft, so that the ultrasonic vibration generated by the ultrasonic transducer is transmitted to the stirring blade during the rotation process through the stirring shaft, and then acts evenly on the material to ultrasonically disperse the material. This can effectively improve the ultrasonic dispersion effect of the mixed material to further improve the quality of the product, and can ensure that the ultrasonic transducer does not contact the stirring shaft when not working to prevent excessive wear, thereby effectively improving the practical effect of the present invention.

[0032] 3) The connection position between the stirring blade and the stirring shaft during the ultrasonic vibration transmission process is prone to significant stress concentration, resulting in significant mechanical damage. To solve this problem, the present invention is provided with an isolation sleeve, and a buffer rubber gasket is connected between the mounting hole of the isolation sleeve and the mounting portion of the stirring blade, thereby improving the support effect on the stirring blade, so as to disperse the force at the connection position between the stirring blade and the stirring shaft, thereby significantly reducing the mechanical damage at the connection position between the stirring blade and the stirring shaft, and the support is a buffer support, therefore, it does not cause excessive impact on the ultrasonic vibration transmission, so as to further enhance the practical effect of the present invention.

[0033] 4) The bottom end of the connecting rod of the present invention is fixedly connected to a vibration isolation mechanism, and the ultrasonic transducer is fixedly connected to the vibration isolation mechanism. The friction energy consumption between the damping particles in the vibration-damping container of the vibration isolation mechanism can form a sufficient vibration isolation effect to prevent the ultrasonic vibration from being excessively transmitted to the driving cylinder through the connecting rod, thereby preventing the air tightness of the cylinder piston from being affected, so as to further ensure that the ultrasonic dispersion technology solution of the present invention can be smoothly implemented.

[0034] 5) After the electrothermal film precursor liquid prepared by the present invention was sprayed onto a microcrystalline glass plate by a conventional spraying method to form an electrothermal film, it was tested that the square resistance of the electrothermal film was 162Ω / □, the infrared emissivity reached 83%, the stable heating temperature under 220V voltage reached 338°C, and the panel temperature difference was only 19°C. Obviously, the electrothermal film precursor liquid prepared by the present invention has excellent performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic structural diagram of the present invention.

[0036] FIG2 is a schematic structural diagram of the condensation reflux mechanism of the present invention.

[0037] FIG3 is a schematic structural diagram of the multifunctional stirring mechanism of the present invention.

[0038] FIG4 is a partial enlarged view of portion A in FIG3 .

[0039] FIG5 is a schematic structural diagram of the vibration isolation mechanism of the present invention.

[0040] In the accompanying drawings: reactor body 1, cover 2, feeding port 3, cover plate 4, discharge valve 5, discharge pipe 6, condensation reflux mechanism 7, condensation tank body 701, condensation coil 702, coil drive motor 703, rotary joint 8, condensate inlet pipe 9, condensate discharge pipe 10, air inlet pipe 11, reflux pipe 12, multi-functional stirring mechanism 13, stirring shaft 1301, stirring blade 1302, stirring part 13021, mounting part 13022, isolation sleeve 1303, stirring drive motor 1304, buffer rubber gasket 14, blind hole 15, ultrasonic transducer 16, connecting rod 17, drive cylinder 18, external ultrasonic generator 19, heating jacket 20, heating liquid inlet pipe 21, heating liquid discharge pipe 22, bracket 23, vibration isolation mechanism 24, vibration damping container 2401, damping particles 2402, threading tube 25. DETAILED DESCRIPTION

[0041] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the embodiments and the accompanying drawings:

[0042] Example 1:

[0043] Referring to Figures 1-5, a mixing reactor comprising

[0044] A reactor body 1, wherein a corresponding cover 2 is sealed and fixedly connected to the top of the reactor body 1, a feeding port 3 is provided on one side of the cover 2, a corresponding cover plate 4 is installed at the feeding port 3 and can be opened and closed, and a discharge pipe 6 with a discharge valve 5 is provided on the bottom side of the reactor body 1;

[0045] The condensation reflux mechanism 7 comprises a condensation tank body 701 provided on the side of the cover 2 where the feeding port 3 is not provided, a corresponding condensation coil 702 is coiled in the condensation tank body 701, both ends of the condensation coil 702 are horizontally arranged and sealed and rotatably installed on both sides of the condensation tank body 701, and both ends of the condensation coil 702 are externally connected to a condensate inlet pipe 9 and a condensate outlet pipe 10 through corresponding rotary joints 8, one end of the condensation tank body 701 is fixedly installed with a coil drive motor 703 for driving the condensation coil 702 to rotate, and the cover 2 is provided with an air inlet pipe 11 for sending evaporated gas into the condensation tank body 701, and a reflux pipe 12 for returning the condensate to the reactor body 1;

[0046] The multifunctional stirring mechanism 13 comprises a stirring shaft 1301 rotatably mounted in the middle of the cover 2, and a plurality of stirring blades 1302 driven by the stirring shaft 1301. The bottom of the stirring shaft 1301 extends to the inner bottom side of the reactor body 1 and is fixedly sleeved with a corresponding isolation sleeve 1303. The isolation sleeve 1303 is provided with a plurality of mounting holes corresponding to the stirring blades 1302 at equal angles. The stirring blades 1302 include a stirring blade 1302 arranged in a plate shape. The stirring blade 1302 has a portion 13021 and a mounting portion 13022 that is axially arranged and fixed to the inner side of the stirring portion 13021. The mounting portion 13022 passes through the mounting hole of the isolation sleeve 1303 and is fixed to the stirring shaft 1301. The mounting portion 13022 of the stirring blade 1302 is spaced apart from the mounting hole, and a corresponding buffer rubber gasket 14 is sealed between the mounting portion 13022 of the stirring blade 1302 and the mounting hole. The stirring blade 1302 A corresponding blind hole 15 is provided in a hollow state on the upper stirring shaft 1301, and an ultrasonic transducer 16 is movably installed in the blind hole 15 and is spaced apart from the blind hole 15. The ultrasonic transducer 16 is connected to the piston rod end of the driving cylinder 18 fixedly mounted on the cover 2 through a corresponding connecting rod 17, and the ultrasonic transducer 16 is electrically connected to an external ultrasonic generator 19; the stirring shaft 1301 is driven by a stirring drive motor 1304 fixedly mounted on the cover 2.

[0047] A corresponding heating jacket 20 is sealed and installed on the outside of the reactor body 1 in a sandwich state. The lower part of the heating jacket 20 is connected to a heating liquid inlet pipe 21, and the upper end of the heating jacket 20 is connected to a heating liquid outlet pipe 22.

[0048] The two ends of the condensing coil 702 are arranged horizontally and are installed on both sides of the condensing tank body 701 through corresponding sealed bearings for sealing and rotation. One end of the condensing coil 702 is connected to the output shaft end of the coil driving motor 703 through a gear meshing transmission.

[0049] The buffer rubber gasket 14 is sealed and connected to the mounting portion 13022 of the stirring blade 1302 and the mounting hole of the isolation sleeve 1303 by gluing.

[0050] The top of the stirring shaft 1301 is connected to the output shaft end of the stirring drive motor 1304 through a gear meshing transmission method.

[0051] A corresponding bracket 23 is fixedly connected upwardly to the middle of the cover 2 , and the cylinder body of the driving cylinder 18 is fixedly connected to the bracket 23 .

[0052] The connecting rod 17 is in a hollow tubular shape, and a corresponding vibration isolation mechanism 24 is fixedly connected downward to the bottom end of the connecting rod 17 . The ultrasonic transducer 16 is fixedly connected to the vibration isolation mechanism 24 .

[0053] The vibration isolation mechanism 24 includes a vibration reduction container 2401 fixed to the bottom end of the connecting rod 17. The vibration reduction container 2401 is filled with a plurality of corresponding vibration reduction damping particles 2402. The vibration reduction damping particles 2402 are iron-based spherical particles.

[0054] A corresponding wire threading tube 25 is installed longitudinally between the upper and lower ends of the vibration damping container 2401, and a wire threading hole connected to the hollow part of the connecting rod 17 is provided on the upper side of the connecting rod 17. The connecting wire of the ultrasonic transducer 16 passes through the wire threading tube 25, the middle hole part of the connecting rod 17, and the wire threading hole and is connected to the external ultrasonic generator 19.

[0055] Example 2:

[0056] A method for preparing an electrothermal film precursor solution based on the hybrid reactor described in the first embodiment comprises the following specific steps:

[0057] S0, 140kg of tin tetrachloride pentahydrate powder was added to 700kg of anhydrous ethanol, heated and stirred for 35min to obtain a tin-containing solution;

[0058] 1 kg of antimony trichloride and 2 kg of bismuth trichloride were added to 15 kg of anhydrous ethanol, heated and stirred for 35 minutes to prepare a doping solution;

[0059] 3 kg of nickel chloride hexahydrate, 4 kg of manganese chloride tetrahydrate, 2 kg of ferric chloride hexahydrate, 2 kg of cuprous chloride, and 1 kg of zinc acetate were added to 60 kg of anhydrous ethanol, heated and stirred for 45 minutes to obtain a modifier;

[0060] 10 kg of modified carbon nanotubes, 20 kg of 40% silica sol, 2 kg of citric acid, 5 kg of hydrochloric acid, and 5 kg of acetic acid were added to 200 kg of anhydrous ethanol, heated and stirred for 45 minutes, and ultrasonically dispersed for 15 minutes to prepare a stabilizer;

[0061] The diameter of the modified carbon nanotubes is 10-30 nm, and the carbon nanotubes are modified by mixed acid ultrasonic hot dipping, deionized water washing and vacuum drying. The diameter of the 40% concentration silica sol solute is 20-25 nm;

[0062] S1, adding the tin solution into the reactor body 1, then adding the doping solution and the modifier into the tin-containing solution, and adding methanol and isopropanol as co-solvents. At 70-80°C, the multifunctional stirring mechanism 13 is started to stir and mix the materials for 38 minutes to obtain a doped tin-containing solution;

[0063] During the heating and stirring process, the evaporated gas enters the condensation tank 701 along the air inlet pipe 11, and flows back into the reactor body 1 after being condensed into liquid;

[0064] S2, the multifunctional stirring mechanism 13 is stopped, a stabilizer is added to the doped tin-containing solution, and the solution is heated at a constant temperature of 65-75°C for 120 minutes. Then, the piston rod of the driving cylinder 18 is extended to drive the ultrasonic transducer 16 to abut against the bottom side of the blind hole 15 of the stirring shaft 1301, and the external ultrasonic generator 19 and the multifunctional stirring mechanism 13 are started. The ultrasonic vibration generated by the ultrasonic transducer is transmitted to the rotating stirring blade 1302 through the stirring shaft 1301, and then acts evenly on the material to ultrasonically disperse the material for 15 minutes;

[0065] S3, the multifunctional stirring mechanism 13 is stopped, and the material is kept at a constant temperature of 30°C for 30 hours to obtain the electric heating film precursor liquid;

[0066] S4, pumping the electrothermal film precursor liquid into a corresponding storage tank for storage.

[0067] Example 3:

[0068] An electrothermal film spraying film forming process includes the following specific steps:

[0069] S1, substrate cleaning: Taking the micro-ceramic glass plate as an example, use low-concentration hydrochloric acid solution and deionized water to rinse the micro-ceramic glass plate, dry it, and then use a plasma cleaner to clean it for later use;

[0070] S2, ultrasonic homogenization of the precursor solution: homogenizing the electric heating film precursor solution described in Example 2 for 10 minutes using an ultrasonic disperser;

[0071] S3, preheating the substrate, heating the glass-ceramic plate to 600-700°C;

[0072] S4, spraying film formation: the electrothermal film precursor liquid described in the second embodiment is loaded into the liquid storage tank of the ultrasonic spraying equipment, and the atomized precursor liquid is sprayed back and forth on the surface of the preheated micro-ceramic glass plate;

[0073] S5, annealing and shaping: the coated glass-ceramic plate is placed in an annealing furnace and annealed at 450-600°C for 12 minutes;

[0074] After testing, the performance of the electric heating film prepared in Example 3 of the present invention is shown in Table 1.

[0075] Performance test results data table of electric heating film:

[0076] Table 1

[0077] As can be seen from Table 1, the sheet resistance of the electric heating film prepared in Example 3 of the present invention is 162Ω / □, the infrared emissivity reaches 83%, the stable heating temperature under a voltage of 220V reaches 338°C, and the panel temperature difference is only 19°C. It is obvious that the electric heating film precursor liquid prepared by the present invention has excellent performance.

[0078] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A hybrid reactor, characterized in that: including a reaction kettle body (1), a corresponding cover (2) is hermetically fixed to the top of the reaction kettle body (1), a feeding port (3) is arranged on one side of the cover (2), a corresponding cover plate (4) is installed at the feeding port (3) in an openable and closable manner, and a discharging pipe (6) equipped with a discharging valve (5) is arranged at the bottom side of the reaction kettle body (1); a condensation reflux mechanism (7), which includes a condensation tank body (701) arranged on the side of the cover (2) without the feeding port (3), a corresponding condensation coil pipe (702) is coiled and arranged in the condensation tank body (701), both ends of the condensation coil pipe (702) are horizontally arranged and hermetically rotatably installed on both sides of the condensation tank body (701), and both ends of the condensation coil pipe (702) are respectively connected to a condensate inlet pipe (9) and a condensate discharge pipe (10) outward through corresponding rotary joints (8), one end of the condensation tank body (701) is fixedly installed with a coil pipe driving motor (703) for driving the condensation coil pipe (702) to rotate, an air inlet pipe (11) for sending evaporation gas into the condensation tank body (701) and a reflux pipe (12) for returning condensate to the reaction kettle body (1) are arranged on the cover (2); a multi-functional stirring mechanism (13), which includes a stirring shaft (1301) rotatably installed in the middle of the cover (2) and several stirring blades (1302) driven by the stirring shaft (1301), the bottom of the stirring shaft (1301) extends to the inner bottom side of the reaction kettle body (1) and is fixedly sleeved with a corresponding isolation sleeve (1303), and several installation holes corresponding to the stirring blades (1302) are arranged on the isolation sleeve (1303) at equal angles; the stirring blade (1302) includes a stirring part (13021) arranged in a plate shape and an installation part (13022) arranged in a shaft shape and fixedly connected to the inner side of the stirring part (13021), the installation part (13022) passes through the installation hole of the isolation sleeve (1303) and is fixedly connected to the stirring shaft (1301), the installation part (13022) of the stirring blade (1302) is arranged at an interval from the installation hole, and corresponding buffer rubber gaskets (14) are respectively and hermetically connected between the installation part (13022) of the stirring blade (1302) and the installation hole; a corresponding blind hole (15) is arranged in a hollow state on the stirring shaft (1301) above the stirring blade (1302), an ultrasonic transducer (16) arranged at an interval from the blind hole (15) is movably installed in the blind hole (15), the ultrasonic transducer (16) is connected to the piston rod end of a driving cylinder (18) fixedly installed on the cover (2) through a corresponding connecting rod (17), and the ultrasonic transducer (16) is electrically connected to an external ultrasonic generator (19); the stirring shaft (1301) is driven by a stirring driving motor (1304) fixedly installed on the cover (2).

2. The hybrid reactor according to claim 1, characterized in that: A corresponding heating jacket (20) is sealed and installed on the outside of the reaction kettle body (1) in a sandwich state. The lower part of the heating jacket (20) is connected to a heating liquid inlet pipe (21) and the upper end of the heating jacket (20) is connected to a heating liquid outlet pipe (22).

3. A hybrid reactor according to claim 1, characterized in that: The two ends of the condensing coil (702) are arranged horizontally and are rotatably mounted on both sides of the condensing tank body (701) through corresponding sealing bearings. One end of the condensing coil (702) is connected to the output shaft end of the coil driving motor (703) through a gear meshing transmission.

4. A hybrid reactor according to claim 1, characterized in that: The buffer rubber gasket (14) is sealed and connected to the mounting portion (13022) of the stirring blade (1302) and the mounting hole of the isolation sleeve (1303) by gluing.

5. A hybrid reactor according to claim 1, characterized in that: The top of the stirring shaft (1301) is connected to the output shaft end of the stirring drive motor (1304) through a gear meshing transmission.

6. A hybrid reactor according to claim 1, characterized in that: A corresponding bracket (23) is fixedly connected upwardly to the middle of the sealing cover (2), and the cylinder body of the driving cylinder (18) is fixedly connected to the bracket (23).

7. A hybrid reactor according to claim 1, characterized in that: The connecting rod (17) is in the shape of a hollow tube, and a corresponding vibration isolation mechanism (24) is fixedly connected downwardly to the bottom end of the connecting rod (17), and the ultrasonic transducer (16) is fixedly connected to the vibration isolation mechanism (24).

8. A hybrid reactor according to claim 7, wherein: The vibration isolation mechanism (24) comprises a vibration-damping container (2401) fixedly connected to the bottom end of the connecting rod (17), wherein the vibration-damping container (2401) is filled with a plurality of corresponding vibration-damping damping particles (2402), wherein the vibration-damping damping particles (2402) are iron-based spherical particles.

9. A hybrid reactor according to claim 8, characterized in that: A corresponding threading tube (25) is installed longitudinally through the upper and lower ends of the vibration damping container (2401), and a threading hole connected to the hollow part thereof is provided on the upper side of the connecting rod (17). The connecting wire of the ultrasonic transducer (16) passes through the threading tube (25), the middle hole of the connecting rod (17), and the threading hole and is connected to an external ultrasonic generator (19).

10. A method for preparing an electrothermal film precursor solution of the hybrid reactor according to claim 2, characterized in that: The following specific steps are included: S1, adding the tin solution into the reaction kettle body (1), then adding the doping solution and the modifier into the tin-containing solution, and adding methanol and isopropanol as co-solvents, and starting the multifunctional stirring mechanism (13) at 70-80° C. to stir and mix the materials for 30-45 minutes to obtain a doped tin-containing solution; During the heating and stirring process, the evaporated gas enters the condensation tank (701) along the air inlet pipe (11), and flows back into the reaction kettle (1) after being condensed into liquid; The doping solution is formed by uniformly mixing antimony trichloride, bismuth trichloride and anhydrous ethanol; the modifier is formed by uniformly mixing nickel chloride hexahydrate, manganese chloride tetrahydrate, ferric chloride hexahydrate, cuprous chloride, zinc acetate and anhydrous ethanol; the tin-containing solution is formed by mixing tin tetrachloride pentahydrate powder and anhydrous ethanol; S2. The multi-functional stirring mechanism (13) is shut down. A stabilizer is added to the doped tin-containing solution, and the solution is heated at a constant temperature of 65 - 75 °C for 120 min. Then, the piston rod of the driving cylinder (18) extends to drive the ultrasonic transducer (16) to abut against the bottom side of the blind hole (15) of the stirring shaft (1301). The external ultrasonic generator (19) and the multi-functional stirring mechanism (13) are started. After the ultrasonic vibration formed by the ultrasonic transducer (16) is transmitted to the stirring blades (1302) during rotation through the stirring shaft (1301), it uniformly acts on the material to perform ultrasonic dispersion on the material for 15 min. The stabilizer is formed by uniformly mixing modified carbon nanotubes, 40% concentration silica sol, citric acid, hydrochloric acid, acetic acid and absolute ethanol. The diameter of the modified carbon nanotubes is 10 - 30 nm. The carbon nanotubes are modified by ultrasonic heat immersion in mixed acid, rinsing with deionized water and vacuum drying. The solute diameter of the 40% concentration silica sol is 20 - 25 nm. S3. The multi-functional stirring mechanism (13) is shut down. The material is aged at a constant temperature of 30 °C for 24 - 36 h to obtain the electrothermal film precursor solution. S4. The electrothermal film precursor solution is pumped and discharged into the corresponding storage tank for storage.

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