Micro-channel three-phase flow control device

Abstract

The invention discloses a micro-channel three-phase flow control device in the field of laboratory stirring and mixing, which comprises a fixing frame, a vertical fixing shaft is arranged on the fixing frame, a first mounting sleeve, a second mounting sleeve and a third mounting sleeve are respectively arranged on the fixing shaft, a main mixing mechanism is mounted on the first mounting sleeve, a stirrer is mounted on the second mounting sleeve, and the third mounting sleeve is mounted on the main mixing mechanism. A beaker is mounted on the third mounting sleeve, the stirrer corresponds to the beaker, an air supply bin, a liquid storage tank and a powder feeding device are arranged on the fixing frame and correspond to the main mixing mechanism, and a conveying pump for conveying liquid to the main mixing mechanism is arranged in the liquid storage tank. The solid-liquid-gas mixing device can be widely applied to various laboratories, solid, liquid and gas are fully mixed, and regulation and reaction are carried out at the same time when the experiment precision requirement is high, so that the full mixing effect expected by an experiment is achieved.

Description

Technical Field

[0001] The invention belongs to the field of laboratory stirring and mixing, and in particular relates to a microchannel three-phase flow control device. Background Art

[0002] As the core component of experimental pretreatment equipment, microchannel three-phase flow controllers have become a rigid demand of high-precision laboratories. Their application scope covers chemical synthesis, biopharmaceuticals, materials science, environmental monitoring and other fields. They can fully mix the three forms of solid, liquid and gas. When the experimental precision is high, they can be regulated and reacted simultaneously to achieve the expected experimental results. It also saves time and improves the efficiency of experimental sample preparation. It can achieve efficient, stable and controllable mixing of solid-liquid-gas three phases at the microscale while avoiding blockage, shear damage and mass transfer limitations.

[0003] Currently, common droplet mixing methods include mechanical stirring droplet generation, microfluidic droplet generation, and ultrasonic assisted atomization, but all have obvious shortcomings: (1) Mechanical stirring droplet mixing is uneven: it relies on external stirring, and concentration gradients are easily formed inside the droplet; shear force damage: high-speed stirring may damage sensitive samples; it is difficult to control the droplet size: the droplet size is significantly affected by viscosity and surface tension, and the reproducibility is poor. (2) Microfluidic droplet generation is only suitable for liquid phase mixing: it is difficult to introduce solid particles or gases; clogging risk: solid particles are easily deposited in narrow channels; gas-liquid interface instability: bubbles interfere with droplet formation, resulting in uneven size. (3) Ultrasonic / pneumatic atomization droplet energy input is uneven: local overheating may damage heat-sensitive materials; droplet size distribution is wide: it is difficult to obtain monodisperse droplets; solid phase sedimentation problem: particles are easily separated during the atomization process, resulting in mixing failure.

[0004] Current droplet mixing devices also face challenges: an inability to achieve uniform mixing of the three phases (solid-liquid-gas). Solid phase sedimentation and bubble escape lead to uneven composition, and they lack dynamic control capabilities. Due to the sedimentation of solid particles, the surface tension of the liquid phase, and the rapid diffusion of the gas phase, traditional mixing devices struggle to achieve sufficient microscale homogeneous mixing of these three phases. This is particularly true for highly sensitive experiments such as catalytic reactions, nanomaterial preparation, and biochemical analysis. Existing equipment often faces three major technical bottlenecks: First, the inability to coordinately control key parameters such as the mixing ratio, temperature, and pH of the three phases in real time. Second, excessive local concentration gradients can easily trigger side reactions during mixing, resulting in reduced yields of the target product. Third, traditional paddle stirring generates shear forces that can damage sensitive samples, while static mixers struggle to overcome gas-liquid mass transfer resistance. These issues not only affect reaction kinetics but also distort characterization data, severely limiting experimental reproducibility in cutting-edge research such as new energy battery electrolyte formulation and MOF synthesis. Therefore, there is an urgent need for a new type of flow control device that can integrate dynamic parameter control, anti-sedimentation microstructure design and online monitoring functions to meet the stringent requirements of cutting-edge scientific research and industrial applications. Summary of the Invention

[0005] The purpose of the present invention is to provide a microchannel three-phase flow control device that can be widely used in various laboratories to fully mix the three forms of solid, liquid and gas. When high experimental precision is required, regulation and reaction can be carried out simultaneously to achieve the expected full mixing effect of the experiment.

[0006] The object of the present invention is achieved as follows: a microchannel three-phase flow control device, comprising a fixed frame, a vertical fixed shaft is provided on the fixed frame, and mounting sleeve one, mounting sleeve two and mounting sleeve three are respectively provided on the fixed shaft, a main mixing mechanism is installed on mounting sleeve one, a stirrer is installed on mounting sleeve two, and a beaker is installed on mounting sleeve three, the stirrer and the beaker are arranged correspondingly, and an air supply bin, a liquid storage tank and a powder feeding device are respectively provided on the fixed frame corresponding to the main mixing mechanism, and a delivery pump for delivering liquid to the main mixing mechanism is provided inside the liquid storage tank.

[0007] The method of use of the present invention is as follows: when it is determined that the switch states of all motors are closed, the liquid storage tank is filled with different types of solutions, the power cord is connected to the power supply, the switch button of the gear pump is pressed to transport the solution, and the solution enters the mixing chamber, and then enters the main mixing mechanism along the hose, and at the same time, the air supply switch is turned on, and the gas enters the other end of the hose through the air supply pipe and the one-way valve along the hose to enter the main mixing mechanism, and at the same time, the powder feeding motor switch is turned on, and the powder feeding device inputs the powder into the main mixing mechanism through the powder feeding pipe, and the main mixing mechanism fully stirs the mixed solid-liquid-gas three-phase material, and then opens the discharge pipe valve of the main mixing mechanism, the mixed liquid flows out, enters the beaker, and then turns on the stirrer to fully stir the pretreatment liquid. Compared with the prior art, the beneficial effects of the present invention are: an economical and practical structure is used in the laboratory for microchannel three-phase flow control device, which can effectively target various types of experiments and fully mix the three forms of solid, liquid and gas. When the experimental accuracy requirements are high, regulation and reaction are carried out at the same time to achieve the expected effect of the experiment.

[0008] As a further improvement of the present invention, the powder feeding device includes a circular powder feeding base, the interior of the powder feeding base is provided with a mounting groove, the mounting groove includes an upper circular disc groove and a lower cylindrical center groove, the disc groove and the center groove are coaxially arranged, the inner diameter of the center groove is smaller than the inner diameter of the disc groove, a rotating disc is correspondingly arranged in the disc groove, and a gap is left between the upper and lower end faces of the rotating disc and the upper and lower inner walls of the disc groove, an annular feeding groove is coaxially opened on the upper end face of the rotating disc, a center column is provided on the lower side of the rotating disc to fit into the center groove, a powder feeding motor is provided at the bottom of the center groove to be transmission-connected to the center column, an end cover for sealing the disc groove opening is provided at the upper end of the powder feeding base, a powder storage device and a discharge seat are respectively provided on the end cover, a powder storage bin is provided inside the powder storage device, an openable top cover is provided at the upper end of the powder storage device, and a powder storage device is provided at the lower end of the powder storage device. There is a support, and the end cover is respectively provided with a mounting hole corresponding to the powder storage device and the discharge seat, the support is installed at the corresponding mounting hole, and a circular contact portion is extended from the lower end of the support to cooperate with and extend into the feed trough, and a discharge hole connecting the powder storage bin and the feed trough is opened inside the support, and the discharge seat is installed at the corresponding mounting hole, and the lower end of the discharge seat is also coaxially provided with a circular contact portion that downwardly cooperates and extends into the feed trough, and the outer periphery of the contact portion is arranged corresponding to the inner wall of the feed trough, and a discharge hole connecting the feed trough is opened inside the discharge seat, and the discharge hole is connected to the main mixing mechanism through a powder feeding pipe, and a vent valve connected to the inside of the disc groove is provided on the end cover, and the vent valve is connected to the air source through an air supply pipe, and a pressure maintaining pipe is vertically provided between the end cover and the powder storage device, the upper end of the pressure maintaining pipe extends into the powder storage device and extends upward, and the lower end of the pressure maintaining pipe is connected to the disc groove. The powder storage device is used to store powder. When the protective gas nitrogen source is inflated from the inlet of the vent valve, the powder slides along the inner wall of the powder storage bin into the feed trough of the rotating disk, and then is sent to the discharge hole through the feed trough of the rotating disk. The discharge hole is connected to the powder feeding hose and flows along the powder feeding hose into the outer sleeve.

[0009] As a further improvement of the present invention, the air delivery chamber is connected to the main mixing mechanism via an air delivery pipe, which is provided with a one-way valve. The one-way valve allows gas inside the air delivery chamber to enter the main mixing mechanism. The one-way valve is located between the hoses to facilitate the one-way flow of gas.

[0010] As a further improvement of the present invention, the liquid storage tank is internally provided with two mutually separated liquid storage bins, each of which is internally provided with a delivery pump, which is a gear pump. The liquid storage tank is provided with two liquid filling ports corresponding to the two liquid storage bins, and the two liquid storage bins of the liquid storage tank are each connected to a liquid separation pipe, the ends of which are both connected to the inlet of the mixing bin. The gear pumps pump the liquid in the corresponding liquid storage bin into the liquid separation pipe, and the outlet of the mixing bin is connected to the main mixing mechanism via a liquid delivery pipe. By turning on the gear pump switches in the two liquid storage bins, the motors start to operate, driving the spur gears to rotate, and the solution enters the mixing bin from the two liquid storage bins and then enters the main mixing mechanism.

[0011] As a further improvement of the present invention, the main mixing mechanism includes an outer sleeve fixed on the mounting sleeve, and the upper and lower ends of the outer sleeve are respectively fixedly provided with a circular upper sealing cover and a lower sealing cover, and the upper sealing cover is vertically provided with four screws in a rectangular shape, the upper end of each screw is fixed to the mounting plate, and a driving motor is provided on the mounting plate, and a mounting shaft sleeve is vertically provided between the mounting plate and the upper sealing cover, and the mounting shaft sleeve is coaxially arranged with the outer sleeve, and the lower end of the mounting shaft sleeve extends into the interior of the outer sleeve, and a rotating shaft is matched with the mounting shaft sleeve, and the lower end of the rotating shaft extends out of the mounting shaft sleeve, and the output shaft of the driving motor is downward and transmission connected to the rotating shaft. The center of the lower sealing cover is provided with a fixed vertical shaft, and the outer periphery of the fixed vertical shaft is respectively fixedly provided with a main bevel gear located above and a circular fixed chassis below. The main bevel gear, the fixed chassis and the rotating shaft are coaxially arranged. The rotating shaft is also provided with a fixed sealing sleeve located on the upper side of the fixed chassis. The fixed sealing sleeve includes a sleeve body and an annular fixing plate that are perpendicular to each other. The fixing plate is sleeved on the rotating shaft, and an annular sealing member is provided at the lower end of the corresponding sleeve body on the fixed chassis. The outer periphery of the rotating shaft located inside the fixed sealing sleeve is provided with three radial mounting rods evenly distributed along the circumference. The outer periphery of the mounting rod is rotatably sleeved with a rotating bevel gear, and each rotating bevel gear is meshed with the main bevel gear. A sealing cover is installed on the sleeve body corresponding to each rotating bevel gear, and a stirring assembly extending out of the sleeve body is provided at the outer end of the rotating bevel gear. The stirring assembly includes a stirring sleeve that radially passes through the corresponding sealing cover, one end of the stirring sleeve is connected to the corresponding rotating bevel gear and sleeved on the outer periphery of the corresponding mounting rod, and the other end of the stirring sleeve is closed, and stirring boxes are provided on both sides of the stirring sleeve. The driving motor drives the rotating shaft to rotate, the main bevel gear is fixed, the fixed sealing sleeve on the rotating shaft rotates, and the annular seal forms a sealed space inside the fixed sealing sleeve and the fixed chassis. The rotating bevel gears on the rotating shaft rotate around the main bevel gear, driving the stirring components to rotate, and the stirring sleeves of the stirring components rotate along with the rotating bevel gears.

[0012] As a further improvement of the present invention, the side of the mounting sleeve is provided with three feed ports that are staggered in the circumferential and height directions, the end of the powder feeding pipe is connected to the upper cover and connected to the inside of the outer sleeve, a plug is installed on the upper feed port, the end of the liquid feeding pipe is connected to the middle feed port, the end of the air feeding pipe is connected to the lower feed port, and three annular rotating grooves staggered in the height direction are provided around the outer circumference of the rotating shaft, and each rotating groove is connected to each feed port in a one-to-one correspondence. The interior of the rotating shaft is provided with three L-shaped through grooves of different heights spaced circumferentially. The through grooves include a groove along the rotating shaft. The radial grooves are arranged radially and the vertical grooves are arranged axially along the rotating shaft. The openings of the three radial grooves are respectively connected to the three rotating grooves. The length of the radial groove is less than the shaft radius of the rotating shaft. The length of the vertical groove is less than the length of the rotating shaft. The lower end of the vertical groove is closed. The mounting rod is a hollow rod. The outward end of the mounting rod is open and connected to the interior of the corresponding stirring sleeve. The inward ends of the three mounting rods are open and connected to the three vertical grooves respectively. A box groove is provided inside the stirring box. The sleeve hole of the stirring sleeve is connected to the box grooves on the left and right sides. The outer wall of the stirring box is covered with multiple discharge box holes. The powder enters the outer sleeve through the powder feeding pipe; the liquid enters the corresponding annular rotating groove, L-shaped through groove, the inside of the mounting rod, the stirring sleeve and the stirring boxes on both sides in sequence through the liquid feeding pipe through the middle feed port, and is finally discharged from the discharge box holes on both sides; the gas enters the corresponding annular rotating groove, L-shaped through groove, the inside of the mounting rod, the stirring sleeve and the stirring boxes on both sides in sequence through the gas feeding pipe through the lower feed port, and is finally discharged from the discharge box holes on both sides; the solid, liquid and gas three-phase substances in the outer sleeve are evenly stirred by the stirring assembly, and the upper feed port can be used to add materials to the outer sleeve.

[0013] As a further improvement of the present invention, an absorption box is provided on the fixed frame corresponding to the upper cover. The absorption box contains a chemical absorbent. An exhaust pipe is connected to the upper cover, the exhaust pipe is connected to the interior of the outer sleeve, and the end of the exhaust pipe is connected to the interior of the absorption box. The absorption box is also connected to an external discharge pipe. The lower side of the lower cover is connected to a mounting base via four bolts. An ultrasonic vibrator is provided between the mounting base and the lower cover. Exhaust gas generated by the mixing of the solid, liquid, and gas phases in the outer sleeve enters the absorption box through the exhaust pipe, where it is purified by the chemical absorbent and finally discharged through the external discharge pipe. The ultrasonic vibrator vibrates the outer sleeve, thereby further evenly mixing the material in the outer sleeve.

[0014] As a further improvement of the present invention, the first, second, and third mounting sleeves are each provided with an axial hole 1 and an axial hole 2, respectively. The fixed shaft is provided through the first axial hole. Each mounting sleeve is connected to a hand-tightening bolt 1 that passes through the first axial hole and tightens the fixed shaft. The outer sleeve passes through the corresponding second axial hole. The first mounting sleeve is connected to a hand-tightening bolt 2 that passes through the second axial hole and tightens the outer sleeve. The mixer passes through the corresponding second axial hole. The second mounting sleeve is connected to a hand-tightening bolt 2 that passes through the second axial hole and tightens the mixer. The beaker passes through the corresponding second axial hole. The third mounting sleeve is connected to a hand-tightening bolt 2 that passes through the second axial hole and presses the beaker. The mixer shaft extends into the beaker. The outer side of the outer sleeve is connected to a discharge pipe that extends into the beaker. The height of the outer sleeve, mixer, and beaker can be adjusted by loosening the first and second hand-tightening bolts, and then tightening the first and second hand-tightening bolts to secure them.

[0015] As a further improvement of the present invention, a control terminal is correspondingly mounted on the fixed frame, and a display screen is provided on the control terminal. The control terminal is also provided with switches for the powder feed motor, the mixer, the drive motor, and the gear pump. The operation of each machine is controlled by the control switches, and the operating parameters of each machine are displayed on the display screen. The stirring sleeve is provided with a temperature sensor and a pH sensor, both of which are connected to a control chip in the control terminal, which regulates the speed of the powder feed motor, the mixer, the drive motor, and the gear pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 for Figure 1 A partial enlarged view of .

[0018] Figure 3 It is a structural schematic diagram of the present invention.

[0019] Figure 4 It is a structural schematic diagram of the present invention.

[0020] Figure 5 Schematic diagram of the internal structure of the liquid storage tank.

[0021] Figure 6 Schematic diagram of the internal structure of the powder feeding device.

[0022] Figure 7 Schematic diagram of the internal structure of the main mixing mechanism.

[0023] Figure 8 for Figure 7 A partial enlarged view of .

[0024] Figure 9 for Figure 7 A partial enlarged view of .

[0025] Figure 10 Schematic diagram of the internal structure of the main mixing mechanism.

[0026] Figure 11 Schematic diagram of the internal structure of the main mixing mechanism.

[0027] Figure 12 for Figure 11 A partial enlarged view of .

[0028] Figure 13 Schematic diagram of the internal structure of the main mixing mechanism.

[0029] Figure 14 for Figure 13 A partial enlarged view of .

[0030] Figure 15 Schematic diagram of the structure of the mixer.

[0031] Among them, 1 fixed frame, 2 fixed shaft, 3 installation sleeve 1, 4 installation sleeve 2, 5 installation sleeve 3, 6 mixer, 6a stirring shaft, 7 beaker, 8 air supply chamber, 9 liquid storage tank, 9a liquid storage chamber, 9b delivery pump, 9c liquid dispensing pipe, 10 powder feeding device, 1001 powder feeding base, 1002 installation slot, 1002a disk slot, 1002b center slot, 1003 rotating disk, 1003a center column, 1004 feeding trough, 1005 powder feeding motor, 1006 end cover, 1007 powder storage, 1007a top cover, 1007b support, 1008 discharge seat, 1009 contact part, 1010 feeding hole, 1011 discharge hole, 1012 ventilation valve, 1013 pressure maintaining pipe, 1014 mounting hole, 11 powder feeding pipe, 12 air supply pipe, 13 air source, 14 air supply pipe, 14a one-way valve , 15 mixing bin, 16 liquid feeding pipe, 17 outer sleeve, 17a upper cover, 17b lower cover, 18 screw, 19 mounting plate, 20 drive motor, 21 mounting sleeve, 22 rotating shaft, 23 fixed vertical shaft, 24 main bevel gear, 25 fixed chassis, 26 fixed sealing sleeve, 26a sleeve body, 26b fixed plate, 27 mounting rod, 28 rotating bevel gear, 29 sealing cover, 30 stirring sleeve, 30a stirring box, 30a1 box groove, 31 feed port, 32 rotating groove, 33 through groove, 33a radial groove, 33b vertical groove, 34 discharge box hole, 35 absorption box, 36 exhaust pipe, 37 external discharge pipe, 38 bolt, 39 mounting base, 40 ultrasonic vibrator, 41 shaft hole one, 42 shaft hole two, 43 hand-tightening bolt one, 44 hand-tightening bolt two, 45 discharge pipe, 46 control terminal. DETAILED DESCRIPTION

[0032] like Figure 1-15As shown, a microchannel three-phase flow control device includes a fixed frame 1, a vertical fixed shaft 2 is provided on the fixed frame 1, and a mounting sleeve 3, a mounting sleeve 2 4 and a mounting sleeve 3 5 are respectively provided on the fixed shaft 2, a main mixing mechanism is installed on the mounting sleeve 1 3, a stirrer 6 is installed on the mounting sleeve 2 4, and a beaker 7 is installed on the mounting sleeve 3 5. The stirrer 6 and the beaker 7 are arranged corresponding to each other, and an air supply bin 8, a liquid storage tank 9 and a powder feeding device 10 are respectively provided on the fixed frame 1 corresponding to the main mixing mechanism, and a delivery pump 9b for delivering liquid to the main mixing mechanism is provided inside the liquid storage tank 9.

[0033] The powder feeding device 10 includes a circular powder feeding base 1001, and a mounting groove 1002 is provided inside the powder feeding base 1001. The mounting groove 1002 includes an upper circular disc groove 1002a and a lower cylindrical center groove 1002b. The disc groove 1002a and the center groove 1002b are coaxially arranged. The inner diameter of the center groove 1002b is smaller than the inner diameter of the disc groove 1002a. A rotating disc 1003 is correspondingly provided in the disc groove 1002a. The upper and lower end surfaces of the rotating disc 1003 are spaced from the upper and lower inner walls of the disc groove 1002a. The upper end surface of the rotating disc 1003 is coaxially provided with an annular feeding groove 1000. 4. A central column 1003a is provided on the lower side of the rotating disk 1003 to fit into the central groove 1002b. A powder feeding motor 1005 is provided at the bottom of the central groove 1002b to be transmission-connected to the central column 1003a. An end cover 1006 is provided on the upper end of the powder feeding base 1001 to seal the opening of the disk groove 1002a. A powder storage device 1007 and a discharge seat 1008 are provided on the end cover 1006. A powder storage bin is provided inside the powder storage device 1007. An openable top cover 1007a is provided on the upper end of the powder storage device 1007. A support 1007b is provided on the lower end of the powder storage device 1007. The cover 1006 is provided with a mounting hole 1014 corresponding to the powder storage device 1007 and the discharge seat 1008, respectively. The support 1007b is installed at the corresponding mounting hole 1014. The lower end of the support 1007b is extended with a circular contact portion 1009 that fits and extends into the feed trough 1004. The support 1007b is provided with a discharge hole 1010 connecting the powder storage bin and the feed trough 1004. The discharge seat 1008 is installed at the corresponding mounting hole 1014. The lower end of the discharge seat 1008 is also coaxially provided with a circular contact portion 1009 that fits and extends downward into the feed trough 1004. The outer periphery is arranged corresponding to the inner wall of the feed trough 1004, and a discharge hole 1011 connected to the feed trough 1004 is opened inside the discharge seat 1008. The discharge hole 1011 is connected to the main mixing mechanism through the powder feeding pipe 11. The end cover 1006 is provided with an air valve 1012 connected to the interior of the disc groove 1002a. The air valve 1012 is connected to the air source 13 through the air supply pipe 12. A pressure maintaining pipe 1013 is vertically provided between the end cover 1006 and the powder storage device 1007. The upper end of the pressure maintaining pipe 1013 extends into the powder storage device 1007 and extends upward. The lower end of the pressure maintaining pipe 1013 is connected to the disc groove 1002a. The powder storage device 1007 is used to store powder. When the protective gas nitrogen source 13 is inflated from the inlet of the vent valve 1012, the powder slides along the inner wall of the powder storage bin to the feed trough 1004 of the rotating disk 1003, and then is sent to the discharge hole 1011 through the feed trough 1004 of the rotating disk 1003. The discharge hole 1011 is connected to the powder feeding hose and flows along the powder feeding hose to the outer sleeve 17.

[0034] The air delivery chamber 8 is connected to the main mixing mechanism via an air delivery pipe 14, which is provided with a one-way valve 14a. The one-way valve 14a allows the gas inside the air delivery chamber 8 to enter the main mixing mechanism. The one-way valve 14a exists between the hoses to facilitate the one-way flow of gas.

[0035] The liquid storage tank 9 is internally provided with two liquid storage bins 9a separated from each other, each of which is internally provided with a delivery pump 9b, which is a gear pump. The liquid storage tank 9 is provided with two liquid filling ports corresponding to the two liquid storage bins 9a. The two liquid storage bins 9a of the liquid storage tank 9 are each connected to a liquid separation pipe 9c, and the ends of the two liquid separation pipes 9c are both connected to the inlet of the mixing bin 15. The gear pumps pump the liquid in the corresponding liquid storage bin 9a into the liquid separation pipe 9c, and the outlet of the mixing bin 15 is connected to the main mixing mechanism via a liquid delivery pipe 16. By turning on the gear pump switches in the two liquid storage bins 9a, the motors start to work, driving the spur gears to rotate, and the solution enters the mixing bin 15 from the two liquid storage bins 9a and then enters the main mixing mechanism.

[0036] The main mixing mechanism includes an outer sleeve 17 fixed on the mounting sleeve 3, and a circular upper cover 17a and a lower cover 17b are fixedly provided at the upper and lower ends of the outer sleeve 17 respectively. Four rectangular screws 18 are vertically provided on the upper cover 17a, and the upper end of each screw 18 is fixed to the mounting plate 19. A drive motor 20 is provided on the mounting plate 19. A mounting sleeve 21 is vertically provided between the mounting plate 19 and the upper cover 17a. The mounting sleeve 21 is coaxially arranged with the outer sleeve 17. The lower end of 21 extends into the interior of the outer sleeve 17, and a rotating shaft 22 is provided in the mounting sleeve 21. The lower end of the rotating shaft 22 extends out of the mounting sleeve 21. The output shaft of the drive motor 20 is downward and connected to the rotating shaft 22. A fixed vertical shaft 23 is provided at the center of the lower cover 17b. The outer periphery of the fixed vertical shaft 23 is respectively fixed with a main bevel gear 24 located above and a circular fixed chassis 25 located below. The main bevel gear 24, the fixed chassis 25 and the rotating shaft 22 are coaxially arranged. A fixed sealing sleeve 26 is also provided on the upper side of the fixed chassis 25. The fixed sealing sleeve 26 includes a sleeve body 26a and an annular fixing plate 26b that are perpendicular to each other. The fixing plate 26b is sleeved on the rotating shaft 22. An annular sealing member is provided at the lower end of the sleeve body 26a corresponding to the fixed chassis 25. The outer periphery of the rotating shaft 22 located inside the fixed sealing sleeve 26 is provided with three radial mounting rods 27 uniformly distributed along the circumferential direction. The outer periphery of the mounting rod 27 is rotatably sleeved with a rotating bevel gear 28. Each rotating bevel gear is Each gear 28 meshes with the main bevel gear 24. A sealing cap 29 is mounted on the housing 26a corresponding to each rotating bevel gear 28. A stirring assembly extending from the housing 26a is disposed at the outer end of each rotating bevel gear 28. The stirring assembly includes a stirring sleeve 30 radially extending through the corresponding sealing cap 29. One end of the stirring sleeve 30 is connected to the corresponding rotating bevel gear 28 and fits over the outer periphery of the corresponding mounting rod 27. The other end of the stirring sleeve 30 is sealed. A stirring box 30a is disposed on each side of the stirring sleeve 30. The drive motor 20 rotates the rotating shaft 22. The main bevel gear 24 remains stationary, while the fixed sealing sleeve 26 on the rotating shaft 22 rotates. An annular sealing member forms a sealed space within the fixed sealing sleeve 26 and the fixed chassis 25. Each rotating bevel gear 28 on the rotating shaft 22 rotates around the main bevel gear 24, driving the stirring assemblies to rotate. The stirring sleeves 30 of the stirring assemblies rotate in response to the rotating bevel gear 28.

[0037] The side of the mounting sleeve 21 is provided with three feed ports 31 staggered in the circumferential and height directions. The end of the powder feeding pipe 11 is connected to the upper cover 17a and is connected to the inside of the outer sleeve 17. A plug is installed on the upper feed port 31, the end of the liquid feeding pipe 16 is connected to the middle feed port 31, and the end of the air feeding pipe 14 is connected to the lower feed port 31. The outer circumference of the rotating shaft 22 is provided with three annular rotating grooves 32 staggered in the height direction. Each rotating groove 32 is connected to each feed port 31 in a one-to-one correspondence. The interior of the rotating shaft 22 is provided with three L-shaped through grooves 33 of different heights along the circumferential direction. The through grooves 33 include radial grooves 33a arranged along the radial direction of the rotating shaft 22 and L-shaped through grooves 33a arranged along the radial direction of the rotating shaft 22. The vertical groove 33b is axially arranged on the shaft 22, and the openings of the three radial grooves 33a are respectively connected to the three rotating grooves 32. The length of the radial groove 33a is less than the axial radius of the rotating shaft 22, and the length of the vertical groove 33b is less than the length of the rotating shaft 22. The lower end of the vertical groove 33b is closed. The mounting rod 27 is a hollow rod. The outward end of the mounting rod 27 is open and connected to the interior of the corresponding stirring sleeve 30. The inward ends of the three mounting rods 27 are opened and connected to the three vertical grooves 33b respectively. A box groove 30a1 is provided inside the stirring box 30a, and the sleeve hole of the stirring sleeve 30 is connected to the box grooves 30a1 on the left and right sides. The outer wall of the stirring box 30a is covered with a plurality of discharge box holes 34. The powder enters the outer sleeve 17 through the powder feeding pipe 11; the liquid enters the corresponding annular rotating groove 32, the L-shaped through groove 33, the inside of the mounting rod 27, the stirring sleeve 30 and the stirring boxes 30a on both sides in sequence from the liquid feeding pipe 16 through the middle feed port 31, and is finally discharged from the discharge box holes 34 on both sides; the gas enters the corresponding annular rotating groove 32, the L-shaped through groove 33, the inside of the mounting rod 27, the stirring sleeve 30 and the stirring boxes 30a on both sides in sequence from the air feeding pipe 14 through the lower feed port 31, and is finally discharged from the discharge box holes 34 on both sides; the solid, liquid and gas three-phase materials in the outer sleeve 17 are evenly stirred by the stirring assembly, and the upper feed port 31 can be used to add materials to the outer sleeve 17.

[0038] An absorption box 35 is provided on the fixed frame 1 corresponding to the upper cover 17a. The absorption box 35 contains a chemical absorbent. An exhaust pipe 36 is connected to the upper cover 17a. The exhaust pipe 36 communicates with the interior of the outer sleeve 17, and the end of the exhaust pipe 36 communicates with the interior of the absorption box 35. An external discharge pipe 37 is also connected to the absorption box 35. The lower side of the lower cover 17b is connected to a mounting base 39 via four bolts 38. An ultrasonic vibrator 40 is provided between the mounting base 39 and the lower cover 17b. Exhaust gas generated by the mixing of the solid, liquid, and gas phases within the outer sleeve 17 enters the absorption box 35 through the exhaust pipe 36. The chemical absorbent purifies the exhaust gas before it is discharged through the external discharge pipe 37. The ultrasonic vibrator 40 vibrates the outer sleeve 17, further stirring the material within the outer sleeve 17. The mounting sleeve 1 3 , the mounting sleeve 2 4 and the mounting sleeve 3 5 are respectively provided with an axial hole 1 41 and an axial hole 2 42 . The fixed shaft 2 is arranged through the axial hole 1 41 . Each mounting sleeve is connected with a hand-tightening bolt 1 43 which passes through the axial hole 1 41 and tightens the fixed shaft 2 . The outer sleeve 17 passes through the corresponding axial hole 2 42 . The mounting sleeve 1 3 is connected with a hand-tightening bolt 2 44 which passes through the axial hole 2 42 and tightens the outer sleeve 17 . The mixer 6 passes through the corresponding axial hole 2 42 . The mounting sleeve 2 4 is connected with a hand-tightening bolt 2 44 which passes through the axial hole 2 42 and tightens the mixer 6 . The beaker 7 passes through the corresponding axial hole 2 42 . The mounting sleeve 3 5 is connected with a hand-tightening bolt 2 44 which passes through the axial hole 2 42 and tightens the beaker 7 . The stirring shaft 6a of the mixer 6 extends into the beaker 7 . The outer side of the outer sleeve 17 is connected with a discharge pipe 45 which extends into the beaker 7 . The height positions of the outer sleeve 17, the stirrer 6 and the beaker 7 can be adjusted by loosening the hand screw bolt 1 43 and the hand screw bolt 2 44, and then tightening the hand screw bolt 1 43 and the hand screw bolt 2 44 to fix them.

[0039] A control terminal 46 is correspondingly mounted on the fixed frame 1. The control terminal is equipped with a display screen. The control terminal is also equipped with switches for the powder feeding motor 1005, the mixer 6, the drive motor 20, and the gear pump. The operation of each machine is controlled by the control switches, and the operating parameters of each machine are displayed on the display screen. The stirring sleeve 30 is equipped with a temperature sensor and a pH sensor. Both the temperature sensor and the pH sensor are connected to a control chip in the control terminal, which regulates the speed of the powder feeding motor 1005, the mixer 6, the drive motor 20, and the gear pump.

[0040] The method of using the present invention is as follows: when it is determined that the switch states of all motors are closed, the liquid storage tank 9 is filled with different types of solutions, the power cord is connected to the power supply, the switch button of the gear pump is pressed to transport the solution, and the solution enters the mixing chamber 15, and then enters the main mixing mechanism along the hose, and at the same time, the air supply switch is turned on, and the gas enters the other end of the hose through the air supply pipe 14 and the one-way valve 14a and enters the main mixing mechanism, and at the same time, the powder feeding motor 1005 switch is turned on, and the powder feeding device 10 inputs the powder into the main mixing mechanism through the powder feeding pipe 11, and the main mixing mechanism fully stirs the mixed solid-liquid-gas three-phase material, and then opens the discharge pipe valve of the main mixing mechanism, and the mixed liquid flows out and enters the beaker 7, and then the stirrer 6 is turned on to fully stir the pretreatment liquid. The advantages of the present invention are: the laboratory is made of an economical and practical structure for a microchannel three-phase flow control device, which can effectively target various types of experiments and fully mix the three forms of solid, liquid and gas. When the experimental accuracy requirements are high, the control and reaction are carried out at the same time to achieve the expected effect of the experiment.

[0041] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features therein according to the disclosed technical content without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.

Claims

1. A microchannel three-phase flow control device, characterized in that: It includes a fixed frame, which is provided with a vertical fixed shaft, and the fixed shaft is respectively provided with mounting sleeve one, mounting sleeve two and mounting sleeve three, the main mixing mechanism is installed on mounting sleeve one, the stirrer is installed on mounting sleeve two, and the beaker is installed on the mounting sleeve three, the stirrer and the beaker are arranged corresponding to each other, and the fixed frame is respectively provided with an air supply bin, a liquid storage tank and a powder feeding device corresponding to the main mixing mechanism, and a delivery pump for delivering liquid to the main mixing mechanism is provided inside the liquid storage tank.

2. A microchannel three-phase flow control device according to claim 1, characterized in that: The powder feeding device comprises a circular powder feeding base, the interior of the powder feeding base is provided with a mounting groove, the mounting groove comprises a circular disc groove above and a cylindrical center groove below, the disc groove and the center groove are coaxially arranged, the inner diameter of the center groove is smaller than the inner diameter of the disc groove, a rotating disc is correspondingly arranged in the disc groove, and a gap is left between the upper and lower end surfaces of the rotating disc and the upper and lower inner walls of the disc groove, an annular feeding groove is coaxially opened on the upper end surface of the rotating disc, a center column is provided on the lower side of the rotating disc to fit into the center groove, a powder feeding motor is provided with a transmission connection with the center column, the upper end of the powder feeding base is provided with an end cover for sealing the disc groove opening, a powder storage device and a discharge seat are respectively provided on the end cover, a powder storage bin is provided inside the powder storage device, an openable top cover is provided on the upper end of the powder storage device, a support is provided at the lower end of the powder storage device, and the end cover The upper corresponding powder storage device and the discharge seat are respectively provided with a mounting hole, the support is installed at the corresponding mounting hole, and a circular contact portion is extended from the lower end of the support to cooperate with and extend into the feed trough, and a discharge hole connecting the powder storage bin and the feed trough is opened inside the support, and the discharge seat is installed at the corresponding mounting hole, and the lower end of the discharge seat is also coaxially provided with a circular contact portion that cooperates and extends downward into the feed trough, and the outer periphery of the contact portion is arranged corresponding to the inner wall of the feed trough, and a discharge hole connecting the feed trough is opened inside the discharge seat, and the discharge hole is connected to the main mixing mechanism through a powder feeding pipe, and a vent valve connected to the inside of the disc groove is provided on the end cover, and the vent valve is connected to the air source through an air supply pipe, and a pressure maintaining pipe is vertically provided between the end cover and the powder storage device, the upper end of the pressure maintaining pipe extends into the powder storage device and extends upward, and the lower end of the pressure maintaining pipe is connected to the disc groove.

3. A microchannel three-phase flow control device according to claim 2, characterized in that: The air delivery bin is connected to the main mixing mechanism via an air delivery pipe, and a one-way valve is provided on the air delivery pipe.

4. A microchannel three-phase flow control device according to claim 3, characterized in that: Two liquid storage bins separated from each other are arranged inside the liquid storage tank, and a delivery pump is arranged inside each liquid storage bin, which is a gear pump. Two liquid filling ports are arranged on the liquid storage tank corresponding to the two liquid storage bins. The two liquid storage bins of the liquid storage tank are connected to a liquid separation pipe, and the ends of the two liquid separation pipes are connected to the inlet of the mixing bin. The gear pump pumps the liquid in the corresponding liquid storage bin into the liquid separation pipe, and the outlet of the mixing bin is connected to the main mixing mechanism through the liquid delivery pipe.

5. The microchannel three-phase flow control device according to claim 4, characterized in that: The main mixing mechanism includes an outer sleeve fixed on the mounting sleeve, and a circular upper cover and a lower cover are fixedly provided at the upper and lower ends of the outer sleeve respectively, and four rectangular screws are vertically provided on the upper cover, and the upper end of each screw is fixed to the mounting plate, and a driving motor is provided on the mounting plate, and a mounting shaft sleeve is vertically provided between the mounting plate and the upper cover, and the mounting shaft sleeve is coaxially arranged with the outer sleeve, and the lower end of the mounting shaft sleeve extends into the interior of the outer sleeve, and a rotating shaft is matched with the mounting shaft sleeve, and the lower end of the rotating shaft extends out of the mounting shaft sleeve, and the output shaft of the driving motor is downward and transmission connected to the rotating shaft. The center of the lower cover is provided with a fixed vertical shaft, and the outer periphery of the fixed vertical shaft is respectively fixedly sleeved with a main bevel gear located above and a circular fixed chassis below. The main bevel gear, the fixed chassis and the rotating shaft are coaxially arranged, and the rotating shaft also corresponds to A fixed sealing sleeve is provided on the upper side of the fixed chassis, and the fixed sealing sleeve includes a sleeve body and an annular fixing plate that are perpendicular to each other. The fixing plate is sleeved on the rotating shaft, and an annular sealing member is provided on the lower end of the corresponding sleeve body on the fixed chassis. The outer periphery of the rotating shaft located inside the fixed sealing sleeve is provided with three radial mounting rods uniformly distributed along the circumference, and the outer periphery of the mounting rod is rotatably sleeved with a rotating bevel gear, and each rotating bevel gear is meshed with the main bevel gear. A sealing cover is installed on the sleeve body corresponding to each rotating bevel gear, and a stirring assembly extending out of the sleeve body is provided at the outer end of the rotating bevel gear, and the stirring assembly includes a stirring sleeve that radially passes through the corresponding sealing cover, one end of the stirring sleeve is connected to the corresponding rotating bevel gear and sleeved on the outer periphery of the corresponding mounting rod, and the other end of the stirring sleeve is closed, and stirring boxes are provided on both sides of the stirring sleeve.

6. The microchannel three-phase flow control device according to claim 5, characterized in that: The side of the mounting sleeve is provided with three feed ports staggered in the circumferential direction and the height direction. The end of the powder feeding pipe is connected to the upper cover and connected to the inside of the outer sleeve. A plug is installed on the upper feed port. The end of the liquid feeding pipe is connected to the middle feed port. The end of the air feeding pipe is connected to the lower feed port. The outer circumference of the rotating shaft is provided with three annular rotating grooves staggered in the height direction. Each rotating groove is connected to each feed port in a one-to-one correspondence. The interior of the rotating shaft is provided with three L-shaped through grooves of different heights at intervals along the circumferential direction. The through grooves include radial grooves arranged along the radial direction of the rotating shaft. The three mounting rods are respectively connected to the three vertical grooves, the radial grooves are smaller than the shaft radius of the rotating shaft, the vertical grooves are smaller than the length of the rotating shaft, and the lower ends of the vertical grooves are closed. The mounting rod is a hollow rod, and the mounting rod is open at one end facing outward and connected to the interior of the corresponding stirring sleeve. The three mounting rods are opened at one end facing inward and are respectively connected to the three vertical grooves. A box groove is provided inside the stirring box, and the sleeve hole of the stirring sleeve is connected to the box grooves on the left and right sides. The outer wall of the stirring box is covered with a plurality of discharge box holes.

7. A microchannel three-phase flow control device according to claim 5 or 6, characterized in that: An absorption box is provided on the fixing frame corresponding to the upper cover, and chemical absorbent is placed in the absorption box. An exhaust pipe is connected to the upper cover, and the exhaust pipe is connected to the inside of the outer sleeve. The end of the exhaust pipe is connected to the inside of the absorption box. The absorption box is also connected to an external discharge pipe. The lower side of the lower cover is connected to a mounting base by four bolts, and an ultrasonic vibrator is provided between the mounting base and the lower cover.

8. A microchannel three-phase flow control device according to claim 5 or 6, characterized in that: The mounting sleeve 1, mounting sleeve 2 and mounting sleeve 3 are respectively provided with an axial hole 1 and an axial hole 2, and the fixed shaft is arranged through the axial hole 1. Each mounting sleeve is connected with a hand-tightening bolt 1 that passes through the axial hole 1 and tightens the fixed shaft. The outer sleeve passes through the corresponding axial hole 2. The mounting sleeve 1 is connected with a hand-tightening bolt 2 that passes through the axial hole 2 and tightens the outer sleeve. The mixer passes through the corresponding axial hole 2. The mounting sleeve 2 is connected with a hand-tightening bolt 2 that passes through the axial hole 2 and tightens the mixer. The beaker passes through the corresponding axial hole 2. The mounting sleeve 3 is connected with a hand-tightening bolt 2 that passes through the axial hole 2 and tightens the beaker. The stirring shaft of the mixer extends into the beaker, and the outer side of the outer sleeve is connected with a discharge pipe that extends into the beaker.

9. A microchannel three-phase flow control device according to claim 5 or 6, characterized in that: A control terminal is correspondingly provided on the fixing frame, a display screen is provided on the control terminal, and a powder feeding motor switch, a mixer switch, a driving motor switch, and a gear pump switch are provided on the control terminal.

Images