Immersion type ultrasonic self-cleaning compression packed bed

Abstract

The invention aims to provide an immersion type ultrasonic self-cleaning compressed packed bed, which belongs to the technical field of gas-liquid mass transfer equipment and comprises an outer shell, a fixing frame is arranged at the bottom of the outer shell, an energy supply control device is arranged below the outer shell, and a reciprocating compression device and an ultrasonic transducer which are bilaterally symmetrical are arranged in the outer shell. The ultrasonic transducer is located in the middle of the reciprocating compression device. According to the invention, a plurality of excellent effects of the ultrasonic device are utilized to accelerate the mass transfer rate and shake off and clean adhesive substances at the same time, and solid particles are effectively collected when the adhesive substances pass through the solid-liquid separator, so that ordered high efficiency of reaction and long-term stability of equipment are realized.

Description

Technical Field

[0001] The invention belongs to the technical field of gas-liquid mass transfer equipment, and in particular relates to an immersed ultrasonic self-cleaning compressed packed bed. Background Art

[0002] As a highly innovative and efficient gas-liquid mass transfer equipment, the rotating packed bed has shown wide applicability in many chemical processes. Traditional rotating packed beds have occupied a certain position in the chemical industry due to their significant advantages such as small size, light weight, low energy consumption, and easy operation and maintenance. However, when it comes to chemical processes involving solid particles in certain reactants and products, these solid particles are very easy to adhere to the wire mesh packing inside the rotor. Over time, it will inevitably lead to uneven distribution of rotor mass, which will cause vibration and mechanical failure, seriously affecting the long-term stable operation of the equipment. In order to completely eliminate the unbalanced mass and ensure the safe and stable operation of the equipment, it is necessary to stop the machine regularly and thoroughly clean the rotor packing. This operation is cumbersome and will interrupt production, which will bring great inconvenience and economic losses.

[0003] In the gas-liquid reaction system, the cavitation effect of ultrasound can induce significant chemical effects, greatly accelerating the reaction rate. At the same time, the mechanical effect it brings can produce strong turbulence between the gas and liquid phases, increase the phase interface renewal rate, and greatly improve the gas-liquid mass transfer efficiency. In addition, ultrasound also has a unique cleaning effect, which can weaken the boundary layer of solid particles and shake off the particles attached to the wire mesh filler. Therefore, using an ultrasonic device to clean the adhesive material on the wire mesh filler can greatly improve the long-term stability of the equipment, avoid performance degradation caused by particle attachment, and ensure continuous and efficient operation of the equipment. Summary of the invention

[0004] The purpose of the present invention is to provide an immersed ultrasonic self-cleaning compressed packed bed to overcome the many key problems that need to be solved in the existing technical system: first, the series of chain reactions caused by the adhesion of adhesive substances on the rotor are not fully considered, that is, the adhesion of adhesive substances causes the rotor to vibrate, and the vibration of the rotor will further squeeze the key components such as the bearing and the shaft seal, which will eventually increase the risk of equipment leakage; second, the problem that the adhesive substances attached to the wire mesh packing are difficult to clean is not considered. The existence of these problems not only makes the reaction process lack the necessary stability, but also greatly shortens the service life of the equipment.

[0005] The present invention adopts the following technical solution: An immersed ultrasonic self-cleaning compressed packed bed comprises an outer shell, a fixing frame is provided at the bottom of the outer shell, an energy supply control device is provided below the outer shell, a bilaterally symmetrical reciprocating compression device and an ultrasonic transducer are provided inside the outer shell, and the ultrasonic transducer is located in the middle of the reciprocating compression device.

[0006] Furthermore, an air inlet pipe and a gas outlet are provided on the top of the outer shell, a liquid inlet is provided on one side of the outer shell, a liquid outlet is provided on the bottom of the outer shell, and outer baffles and middle baffles are provided on both sides of the inner part of the outer shell from the outside to the inside, respectively, wherein the upper and lower ends of the outer baffle are connected to the outer shell, and the length of the middle baffle is shorter than that of the outer baffle.

[0007] Furthermore, the energy supply control device includes a motor switch and an ultrasonic controller, an air intake pipe 2 is provided on one side of the energy supply control device, and a reciprocating rotating device is provided on one side of the ultrasonic controller; The ultrasonic controller comprises an instrument display screen, a timing setting button and a switch button.

[0008] Furthermore, the reciprocating rotating device includes an electric motor, the output end of the electric motor is connected to a T-shaped fixed rod, both ends of the T-shaped fixed rod are connected to double-headed rotating rods, the top of the double-headed rotating rod is provided with a rotating joint, and the rotating joint is connected to a reciprocating piston.

[0009] Further, the reciprocating compression device comprises a shell 1, two gas-liquid premixers are respectively provided at the upper and lower ends of the shell 1, and detachable solid-liquid separators are respectively provided at the left and right ends of the shell 1. The inner cavity of the shell 1 is filled with a wire mesh filler made of polytetrafluoroethylene material, and two piston channels are provided at the bottom of the shell 1, and the piston connected to the rotating joint is located in the piston channel; The first air inlet pipe is communicated with the gas-liquid premixer located at the upper end of the first shell, and the second air inlet pipe is communicated with the gas-liquid premixer located at the lower end of the shell.

[0010] Furthermore, the gas-liquid premixer includes a shell two, a gas distributor is provided in the center of the shell two, four liquid guide plates are arranged at equal intervals around the gas distributor, a liquid inlet valve is provided at one end of the shell two close to the shell one, and a fixing plate one is provided at the edge of the shell two to prevent the liquid inlet valve from falling off; the gas distributor is a hollow cylinder, the end of the hollow cylinder close to the liquid inlet valve is sealed, and the end away from the liquid inlet valve is ventilated.

[0011] Furthermore, the solid-liquid separator includes a shell three, a drain valve is provided at one end of the shell three close to the shell one, a fixing plate 2 is provided on the side close to the drain valve to prevent the drain valve from falling off, and a plurality of staggered deflection baffles made of aluminum alloy material are provided on the upper and lower inner walls of the shell three, and the deflection baffles form an angle of 45° with the inner side wall of the shell three, and a detachable lower shell is provided at the bottom of the shell three, and a solid collection tank is provided in the lower shell, and the solid collection tank is threadedly connected to the shell.

[0012] Furthermore, the ultrasonic transducer includes a plurality of transducer components, the upper and lower ends of the transducer components are respectively connected to a horn-shaped housing, and the ultrasonic transducer is electrically connected to an ultrasonic controller.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention provides an immersed ultrasonic self-cleaning compressed packed bed, which effectively solves the problem that sticky substances adhere to the high-speed rotating rotor, causing it to vibrate, and then squeeze key components such as bearings and shaft seals, and ultimately cause equipment leakage. Traditional rotary packed beds rely on high-speed rotating rotors to create a negative pressure state inside the bed to achieve liquid suction operations. In order to effectively avoid the above problems, the present invention innovatively uses a reciprocating compression device to replace the traditional rotor to generate negative pressure and efficiently cut the gas-liquid two phases. While retaining the advantages of traditional rotary packed beds, it successfully avoids a series of disadvantages derived from rotor vibration, ensuring that the gas-liquid reaction is carried out in an orderly and efficient manner, and achieving long-term stable operation of the equipment.

[0014] 2. The present invention provides an immersed ultrasonic self-cleaning compression packing bed, which effectively solves the problem that the adhesive material attached to the wire mesh packing is difficult to clean. The present invention introduces an ultrasonic device in the reciprocating compression device, and utilizes the chemical effect, mechanical effect and self-cleaning effect brought by its significant cavitation effect to effectively accelerate the chemical reaction rate and significantly accelerate the renewal process of the phase interface, thereby greatly improving the gas-liquid mass transfer efficiency. In addition, the ultrasonic device, with its unique self-cleaning characteristics, can efficiently shake off the solid matter firmly attached to the wire mesh packing, effectively ensuring the cleanliness of the internal environment of the reciprocating compression device, and laying a solid foundation for the stable reaction.

[0015] 3. The present invention provides an immersed ultrasonic self-cleaning compressed packed bed. After the adhered material is successfully shaken off with the help of an ultrasonic device, the mixed fluid carrying the shaken solid particles immediately enters the solid-liquid separator. An aluminum alloy baffle is provided inside the separator. When the solid particles in the mixed fluid collide with the baffle, due to inertia, these solid particles cannot continue to move forward with the fluid, but are effectively blocked. Under the continuous action of gravity, they gradually settle into the solid collection tank pre-set at the bottom of the solid-liquid separator. Through this process, accurate solid-liquid separation can be achieved, and a pure gas-liquid mixture and solid particles collected in the tank are obtained, which not only ensures the purity of the gas and liquid, but also facilitates the subsequent processing and utilization of the solid, thereby improving the efficiency and quality of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is an internal cross-sectional view of the present invention; Figure 3 is an internal cross-sectional view of a reciprocating compression device; Figure 4 It is a schematic diagram of the three-dimensional structure of the gas-liquid premixer; Figure 5 It is a schematic diagram of the three-dimensional structure of the solid-liquid separator; Figure 6 It is an internal cross-sectional view of a reciprocating rotating device; Among them: 1-outer shell; 2-fixed frame; 3-energy supply control device; 4-reciprocating compression device; 5-ultrasonic transducer; 6-intake pipe 1; 7-gas outlet; 8-liquid inlet; 9-liquid outlet; 10-outer baffle; 11-middle baffle; 12-motor switch; 13-ultrasonic controller; 14-intake pipe 2; 15-instrument display screen; 16-timing setting button; 17-switch button; 18-motor; 19- T-shaped fixed rod; 20-double-headed rotating rod; 21-rotating joint; 22-piston; 23-gas-liquid premixer; 24-solid-liquid separator; 25-wire mesh filler; 26-piston channel; 27-gas distributor; 28-liquid guide plate; 29-liquid inlet valve; 30-fixed plate one; 31-liquid discharge valve; 32-fixed plate two; 33-baffle; 34-lower shell; 35-solid collection tank; 36-transducer assembly; 37-trumpet-shaped shell. DETAILED DESCRIPTION

[0017] The present invention will be further described with reference to the accompanying drawings.

[0018] The present invention provides an immersed ultrasonic self-cleaning compressed packed bed, which innovatively uses a reciprocating compression device to replace the traditional rotor to generate negative pressure and efficiently cut the gas-liquid two phases, successfully avoiding a series of disadvantages derived from rotor vibration. At the same time, the various excellent effects of the ultrasonic device are used to accelerate the mass transfer rate, and the solid-liquid separator is used to efficiently collect the cleaned solid matter.

[0019] As shown in the figure, an immersed ultrasonic self-cleaning compressed packed bed includes an outer shell 1, a fixing frame 2 is provided at the bottom of the outer shell 1, an energy supply control device 3 is provided below the outer shell 1, and a left-right symmetrical reciprocating compression device 4 and an ultrasonic transducer 5 are provided inside the outer shell 1, and the ultrasonic transducer 5 is located in the middle of the reciprocating compression device 4.

[0020] Furthermore, an air inlet pipe 6 and a gas outlet 7 are provided at the top of the outer shell 1, a liquid inlet 8 is provided on one side of the outer shell 1, a liquid outlet 9 is provided at the bottom of the outer shell 1, and outer baffles 10 and intermediate baffles 11 are provided on both sides of the inner part of the outer shell 1 from the outside to the inside, wherein the upper and lower ends of the outer baffle 10 are connected to the outer shell 1, and the length of the intermediate baffle 11 is shorter than that of the outer baffle 10.

[0021] Furthermore, the energy supply control device 3 includes a motor switch 12 and an ultrasonic controller 13, an air intake pipe 14 is provided on one side of the energy supply control device 3, and a reciprocating rotation device is provided on one side of the ultrasonic controller 13; The ultrasonic controller 13 includes an instrument display screen 15 , a timing setting button 16 and a switch button 17 .

[0022] Furthermore, the reciprocating rotating device includes an electric motor 18, the output end of the electric motor 18 is connected to a T-shaped fixed rod 19, both ends of the T-shaped fixed rod 19 are connected to a double-headed rotating rod 20, the top of the double-headed rotating rod 20 is provided with a rotating joint 21, and the rotating joint 21 is connected to a reciprocating piston 22.

[0023] Further, the reciprocating compression device 4 comprises a shell 1, two gas-liquid premixers 23 are respectively provided at the upper and lower ends of the shell 1, and detachable solid-liquid separators 24 are respectively provided at the left and right ends of the shell 1. The inner cavity of the shell 1 is filled with a wire mesh filler 25 made of polytetrafluoroethylene material, and two piston channels 26 are provided at the bottom of the shell 1. The piston 22 connected to the rotating joint 21 is located in the piston channel 26; The air inlet pipe 1 6 is connected to the gas-liquid premixer 23 located at the upper end of the shell 1, and the air inlet pipe 2 14 is connected to the gas-liquid premixer 23 located at the lower end of the shell.

[0024] Furthermore, the gas-liquid premixer 23 includes a shell 2, a gas distributor 27 is provided in the center of the shell 2, four liquid guide plates 28 are arranged at equal intervals around the gas distributor 27, a liquid inlet valve 29 is provided at one end of the shell 2 close to the shell 1, and a fixing plate 30 is provided at the edge of the shell 2 to prevent the liquid inlet valve 29 from falling off; the gas distributor 27 is a hollow cylinder, and the end of the hollow cylinder close to the liquid inlet valve 29 is sealed, and the end away from the liquid inlet valve 29 is ventilated.

[0025] Furthermore, the solid-liquid separator 24 includes a shell three, a drain valve 31 is provided at one end of the shell three close to the shell one, a fixing plate 2 32 is provided on the side close to the drain valve 31 to prevent the drain valve 31 from falling off, and a plurality of staggered deflection baffles 33 made of aluminum alloy material are provided on the upper and lower inner walls of the shell three, and the deflection baffles 33 form an angle of 45° with the inner side wall of the shell three, and a detachable lower shell 34 is provided at the bottom of the shell three, and a solid collection tank 35 is provided in the lower shell 34, and the solid collection tank 35 is threadedly connected to the shell.

[0026] Furthermore, the ultrasonic transducer 5 includes a plurality of transducer components 36 , and the upper and lower ends of the transducer components 36 are respectively connected to horn-shaped housings 37 . The ultrasonic transducer 5 is electrically connected to the ultrasonic controller 13 .

[0027] By adopting the above technical solution, the liquid phase is first introduced into the outer shell 1 from the liquid inlet 8 until the entire outer shell 1 is filled, and then ventilation is performed through the air inlet pipe 1 6 and the air inlet pipe 2 14. At the same time, the motor switch 12 on the energy supply control device 3 is turned on, and the working time of the ultrasonic device is set. The reciprocating rotation device will drive the piston 22 to perform regular reciprocating motion. When the piston 22 moves downward, the reciprocating compression device 4 presents a low pressure state, and there is a tendency to inhale the gas-liquid two-phase. Before this, the liquid is first pre-divided into four parts by the liquid guide sheet 28 in the gas-liquid premixer 23, and the gas emerges through the ventilation end on the gas distributor 27 therein, and is carried forward by the inhaled liquid for sufficient pre-mixing. Then, it enters the reciprocating compression device 4 under a huge pressure difference and is cut and torn into countless tiny bubbles and liquid sheets by the wire mesh filler 25 therein, greatly increasing the contact area of ​​the two phases. At the same time, the working ultrasonic device is not only conducive to the mass transfer reaction, but also effectively shakes off the adhesive material attached to the wire mesh filler 25. When the piston 22 moves upward, the device is in a high pressure state, and the gas-liquid-solid three-phase after full reaction will be brought to the solid-liquid separator 24, and then discharged after solid-liquid separation. External baffles 10 and intermediate baffles 11 are set on both sides of the outer shell 1 to enhance the mixing degree, prevent large vortexes and avoid surface exposure. Subsequently, the purified gas-liquid mixture will be sucked into the reciprocating compression device 4 again for reaction and then discharged, and the gas-liquid mass transfer is repeated many times to ensure the mass transfer efficiency.

[0028] The working principle of the present invention is as follows: When the mass transfer reaction is carried out, the liquid phase is first introduced into the outer shell 1 from the liquid inlet 8 until the entire outer shell 1 is filled, and then ventilation is carried out through the air inlet pipe 1 6 and the air inlet pipe 2 14. The motor switch 12 is turned on and the working time of the ultrasonic device is set. Under the operation of the reciprocating rotating device, the piston 22 reciprocates, and the gas and liquid phases are fully mixed in the gas-liquid premixer 23 and enter the reciprocating compression device 4. After being effectively cut by the wire mesh filler 25 therein, a sufficient mass transfer reaction is carried out. The solids adhered to the filler produced by the reaction are shaken off by the ultrasonic wave and separated and collected when passing through the solid-liquid separator 24. Thereafter, the purified gas and liquid phases will be sucked into the compression filling device again for mass transfer until the reaction is completed. Finally, the motor switch 12 and the ultrasonic controller 13 are turned off to stop the air intake. The gas in the outer shell 1 floats up and collects by itself and is discharged from the gas outlet 7, and the liquid flows out from the liquid outlet 9 under the outer shell 1.

Claims

1. An immersion type ultrasonic self-cleaning compressed packed bed, characterized in that: The invention comprises an outer shell (1), a fixing frame (2) being provided at the bottom of the outer shell (1), an energy supply control device (3) being provided below the outer shell (1), and a bilaterally symmetrical reciprocating compression device (4) and an ultrasonic transducer (5) being provided inside the outer shell (1), wherein the ultrasonic transducer (5) is located in the middle of the reciprocating compression device (4).

2. The immersed ultrasonic self-cleaning compressed packed bed according to claim 1, characterized in that: The outer shell (1) is provided with an air inlet pipe (6) and a gas outlet (7) at the top, a liquid inlet (8) at one side of the outer shell (1), and a liquid outlet (9) at the bottom of the outer shell (1). The outer shell (1) is provided with an outer baffle (10) and an intermediate baffle (11) at both sides thereof from the outside to the inside, wherein the upper and lower ends of the outer baffle (10) are connected to the outer shell (1), and the length of the intermediate baffle (11) is shorter than that of the outer baffle (10).

3. The immersed ultrasonic self-cleaning compressed packed bed according to claim 2, characterized in that: The energy supply control device (3) comprises a motor switch (12) and an ultrasonic controller (13); an air intake pipe 2 (14) is provided on one side of the energy supply control device (3); and a reciprocating rotating device is provided on one side of the ultrasonic controller (13); The ultrasonic controller (13) comprises an instrument display screen (15), a timing setting button (16) and a switch button (17).

4. The immersed ultrasonic self-cleaning compressed packed bed according to claim 3, characterized in that: The reciprocating rotating device comprises an electric motor (18), the output end of the electric motor (18) is connected to a T-shaped fixed rod (19), both ends of the T-shaped fixed rod (19) are connected to double-headed rotating rods (20), a rotating joint (21) is provided at the top of the double-headed rotating rod (20), and a reciprocating piston (22) is connected to the rotating joint (21).

5. The immersed ultrasonic self-cleaning compressed packed bed according to claim 4, characterized in that: The reciprocating compression device (4) comprises a housing 1, wherein two gas-liquid premixers (23) are respectively provided at the upper and lower ends of the housing 1, and detachable solid-liquid separators (24) are respectively provided at the left and right ends of the housing 1, the inner cavity of the housing 1 is filled with a wire mesh filler (25) made of polytetrafluoroethylene material, and two piston channels (26) are provided at the bottom of the housing 1, and the piston (22) connected to the rotating joint (21) is located in the piston channel (26); The air inlet pipe 1 (6) is in communication with the gas-liquid premixer (23) located at the upper end of the shell 1, and the air inlet pipe 2 (14) is in communication with the gas-liquid premixer (23) located at the lower end of the shell.

6. The immersed ultrasonic self-cleaning compressed packed bed according to claim 5, characterized in that: The gas-liquid premixer (23) comprises a second shell, a gas distributor (27) is provided at the center of the second shell, four liquid guide plates (28) are arranged at equal intervals around the gas distributor (27), a liquid inlet valve (29) is provided at one end of the second shell close to the first shell, and a fixing plate (30) is provided at the edge of the second shell to prevent the liquid inlet valve (29) from falling off; the gas distributor (27) is a hollow cylinder, the end of the hollow cylinder close to the liquid inlet valve (29) is sealed, and the end away from the liquid inlet valve (29) is ventilated.

7. The immersed ultrasonic self-cleaning compressed packed bed according to claim 5, characterized in that: The solid-liquid separator (24) comprises a shell body three, wherein a drain valve (31) is provided at one end of the shell body three close to the shell body one, and a fixing plate (32) is provided on the side close to the drain valve (31) to prevent the drain valve (31) from falling off, and a plurality of staggered baffles (33) made of aluminum alloy are provided on the inner walls of the upper and lower sides of the shell body three, wherein the baffles (33) form an angle of 45° with the inner side wall of the shell body three, and a detachable lower shell body (34) is provided at the bottom of the shell body three, wherein a solid collection tank (35) is provided in the lower shell body (34), and the solid collection tank (35) is threadedly connected to the shell body.

8. The immersed ultrasonic self-cleaning compressed packed bed according to claim 3, characterized in that: The ultrasonic transducer (5) comprises a plurality of transducer components (36), the upper and lower ends of the transducer components (36) are respectively connected to a horn-shaped housing (37), and the ultrasonic transducer (5) is electrically connected to an ultrasonic controller (13).

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