An immersed ultrasonic self-cleaning compressed packed bed

Abstract

The present invention aims to provide an immersed ultrasonic self-cleaning compressed packed bed, belonging to the technical field of gas-liquid mass transfer equipment. The device comprises an outer shell, a fixed frame disposed at the bottom of the outer shell, an energy supply control device disposed below the outer shell, and a bilaterally symmetrical reciprocating compression device and an ultrasonic transducer disposed within the outer shell, with the ultrasonic transducer positioned in the center of the reciprocating compression device. The present invention utilizes the various advantages of the ultrasonic device to accelerate mass transfer while simultaneously shaking off and cleaning viscous materials. Solid particles are effectively collected as they pass through a solid-liquid separator, thereby achieving orderly and efficient reactions and long-term stability of the equipment.

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, rotating packed beds have demonstrated wide applicability in numerous chemical processes. Traditional rotating packed beds have occupied a certain position in the chemical industry due to their significant advantages, such as compact size, light weight, low energy consumption, and ease of operation and maintenance. However, when it comes to chemical processes involving certain reactants and products containing solid particles, these solid particles are very likely to adhere to the wire mesh packing inside the rotor. Over time, this will inevitably lead to uneven rotor mass distribution, causing vibration and mechanical failure, seriously affecting the long-term stable operation of the equipment. To completely eliminate unbalanced mass and ensure safe and stable operation of the equipment, the equipment must be stopped regularly and the rotor packing thoroughly cleaned. This operation is cumbersome and interrupts production, which will cause great inconvenience and economic losses.

[0003] In gas-liquid reaction systems, the cavitation effect of ultrasound can trigger significant chemical reactions, greatly accelerating the reaction rate. Simultaneously, its mechanical effects can generate intense turbulence between the gas and liquid phases, increasing the rate of interface renewal and significantly improving gas-liquid mass transfer efficiency. Ultrasound also possesses a unique cleaning effect, weakening the boundary layer of solid particles and shaking off particles adhering to wire mesh packing. Therefore, using ultrasonic devices to clean adhesive materials from wire mesh packing can significantly improve the long-term stability of the equipment, avoid performance degradation caused by particle adhesion, and ensure continued efficient operation. Summary of the Invention

[0004] The present invention aims to provide an immersed ultrasonic self-cleaning compressed packed bed to overcome several key issues that remain unresolved in existing technology systems. First, they fail to adequately account for the chain reaction caused by adhesive material adhering to the rotor, which causes rotor vibration, further compressing key components such as bearings and shaft seals, ultimately increasing the risk of equipment leakage. Second, they fail to consider the difficulty of cleaning adhesive material adhering to the wire mesh packing. These issues not only render the reaction process instable but also significantly shorten the equipment's service life.

[0005] The present invention adopts the following technical solutions:

[0006] 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, and a bilaterally symmetrical reciprocating compression device and an ultrasonic transducer are provided inside the outer shell, wherein the ultrasonic transducer is located in the middle of the reciprocating compression device.

[0007] 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 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.

[0008] 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 rotation device is provided on one side of the ultrasonic controller;

[0009] The ultrasonic controller includes an instrument display screen, a timing setting button and a switch button.

[0010] 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 a double-headed rotating rod, the top of the double-headed rotating rod is provided with a rotating joint, and the rotating joint is connected to a reciprocating piston.

[0011] Furthermore, the reciprocating compression device includes a housing 1, two gas-liquid premixers are provided at the upper and lower ends of the housing 1, and detachable solid-liquid separators are provided at the left and right ends of the housing 1. The inner cavity of the housing 1 is filled with a wire mesh packing made of polytetrafluoroethylene material. The bottom of the housing 1 is provided with two piston channels, and the pistons connected to the rotating joint are located in the piston channels.

[0012] 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.

[0013] 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 on 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.

[0014] 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 two 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 a 45° angle with the inner side wall of the shell three. 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.

[0015] 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 the ultrasonic controller.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention provides an immersed ultrasonic self-cleaning compressed packed bed, which effectively solves the problem of viscous substances adhering to the high-speed rotating rotor, causing it to vibrate, and then squeezing key components such as bearings and shaft seals, and ultimately causing equipment leakage. Traditional rotating 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 circumvent 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 rotating 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.

[0018] 2. The present invention provides an immersed ultrasonic self-cleaning compressed packed bed, effectively solving the problem of difficulty cleaning wire mesh packing due to adhesive materials not being considered. This invention incorporates an ultrasonic device into a reciprocating compression mechanism, leveraging the chemical, mechanical, and self-cleaning effects of its significant cavitation action to effectively accelerate chemical reaction rates and significantly accelerate the renewal of the phase interface, thereby significantly improving gas-liquid mass transfer efficiency. Furthermore, the ultrasonic device, with its unique self-cleaning properties, can efficiently shake off solid matter firmly attached to the wire mesh packing, effectively ensuring the cleanliness of the internal environment of the reciprocating compression mechanism and laying a solid foundation for the stable progress of the reaction.

[0019] 3. The present invention provides an immersed ultrasonic self-cleaning compressed packed bed. After the adherent material is successfully shaken off with the help of an ultrasonic device, the mixed fluid carrying the shaken-off solid particles immediately enters a 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 and are effectively blocked. Under the continuous action of gravity, they gradually settle into the solid collection tank pre-installed at the bottom of the solid-liquid separator. Through this process, precise solid-liquid separation can be achieved, and a pure gas-liquid mixture and solid particles collected in the tank are obtained. This not only ensures the purity of the gas and liquid, but also facilitates the subsequent processing and utilization of the solids, thereby improving the efficiency and quality of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 is an internal cross-sectional view of the present invention;

[0022] Figure 3 is an internal cross-sectional view of a reciprocating compression device;

[0023] Figure 4 Schematic diagram of the three-dimensional structure of the gas-liquid premixer;

[0024] Figure 5 Schematic diagram of the three-dimensional structure of the solid-liquid separator;

[0025] Figure 6 It is an internal cross-sectional view of the reciprocating rotating device;

[0026] Among them: 1-outer shell; 2-fixing 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; 16-timing setting button; 17-on / off 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 1; 31-liquid discharge valve; 32-fixed plate 2; 33-baffle; 34-lower shell; 35-solid collection tank; 36-transducer assembly; 37-trumpet-shaped shell. DETAILED DESCRIPTION

[0027] The present invention will be further described with reference to the accompanying drawings.

[0028] This invention provides an immersed ultrasonic self-cleaning compressed packed bed. It innovatively employs a reciprocating compression mechanism to replace the traditional rotor to generate negative pressure and efficiently separate the gas and liquid phases, successfully avoiding a series of drawbacks associated with rotor vibration. Furthermore, it leverages the various advantages of the ultrasonic device to accelerate mass transfer, and utilizes a solid-liquid separator to efficiently collect cleaned solid matter.

[0029] 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.

[0030] 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, and a liquid outlet 9 is provided at the bottom of the outer shell 1. The inner sides of the outer shell 1 are respectively provided with an outer baffle 10 and an intermediate baffle 11 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.

[0031] Furthermore, the energy supply control device 3 includes 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 rotation device is provided on one side of the ultrasonic controller 13.

[0032] The ultrasonic controller 13 includes an instrument display screen 15 , a timing setting button 16 and a switch button 17 .

[0033] Furthermore, the reciprocating rotation 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.

[0034] Furthermore, the reciprocating compression device 4 includes a housing 1, 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. The bottom of the housing 1 is provided with two piston channels 26, and the piston 22 connected to the rotating joint 21 is located in the piston channel 26;

[0035] 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.

[0036] 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 on the edge of the shell 2 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.

[0037] Furthermore, the solid-liquid separator 24 includes a shell three, and the shell three is provided with a drain valve 31 at one end close to the shell one, and 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. The upper and lower inner walls of the shell three are provided with a number of staggered deflection baffles 33 made of aluminum alloy material, and the deflection baffles 33 are at a 45° angle to the inner side wall of the shell three. 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.

[0038] 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 a horn-shaped housing 37 . The ultrasonic transducer 5 is electrically connected to the ultrasonic controller 13 .

[0039] By adopting the above technical solution, the liquid phase is first introduced into the outer shell 1 through the liquid inlet 8 until it fills the entire outer shell 1. Then, ventilation is provided through the air inlet pipe 1 6 and the air inlet pipe 2 14. Simultaneously, the motor switch 12 on the energy supply control device 3 is turned on, and the operating time of the ultrasonic device is set. The reciprocating mechanism drives the piston 22 in regular reciprocating motion. As the piston 22 moves downward, a low pressure condition is established within the reciprocating compression device 4, tending to draw in both the gas and liquid phases. Prior to this, the liquid is pre-divided into four parts by the liquid guide plate 28 in the gas-liquid premixer 23. The gas then emerges through the vented end of the gas distributor 27, entrained by the drawn-in liquid and thoroughly pre-mixed. Subsequently, under the significant pressure differential, it enters the reciprocating compression device 4 and is cut and torn into countless tiny bubbles and liquid sheets by the wire mesh packing 25 therein, significantly increasing the contact area between the two phases. Simultaneously, the operating ultrasonic device not only facilitates the mass transfer reaction but also effectively shakes off adhesive substances adhering to the wire mesh packing 25. As piston 22 moves upward, high pressure is established within the device. The fully reacted gas, liquid, and solid phases are carried to solid-liquid separator 24, where they are separated and discharged. Outer baffles 10 and intermediate baffles 11 are positioned on either side of outer shell 1 to enhance mixing, prevent large eddies, and minimize surface exposure. The purified gas-liquid mixture is then re-injected into reciprocating compression device 4 for further reaction before being discharged. This repeated gas-liquid mass transfer ensures efficient mass transfer.

[0040] The working principle of the present invention is as follows:

[0041] During the mass transfer reaction, the liquid phase is first introduced into the outer shell 1 through the liquid inlet 8 until it fills the entire outer shell 1. Air is then ventilated through the air inlet pipe 1 6 and the air inlet pipe 2 14. The motor switch 12 is turned on and the ultrasonic device is set to operate. Under the action of the reciprocating mechanism, the piston 22 reciprocates, thoroughly mixing the gas and liquid phases in the gas-liquid premixer 23 before entering the reciprocating compression device 4. The mesh packing 25 therein effectively cuts the gas and liquid phases, allowing for a full mass transfer reaction. Solids produced by the reaction and adhering to the packing are shaken off by the ultrasonic wave and separated and collected as they pass through the solid-liquid separator 24. The purified gas and liquid phases are then drawn back into the compression and filling device for mass transfer until the reaction is complete. Finally, the motor switch 12 and ultrasonic controller 13 are turned off, stopping the air intake. The gas within the outer shell 1 rises and collects, then is discharged through the gas outlet 7, while the liquid flows out through the liquid outlet 9 at the bottom of 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) is provided at the bottom of the outer shell (1), an energy supply control device (3) is provided below the outer shell (1), a bilaterally symmetrical reciprocating compression device (4) and an ultrasonic transducer (5) are provided inside the outer shell (1), the ultrasonic transducer (5) is located in the middle of the reciprocating compression device (4), an air intake pipe (1) (6) is provided at the top of the outer shell (1), the energy supply control device (3) comprises 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 rotation device is provided on one side of the ultrasonic controller (13); The reciprocating rotation device comprises an electric motor (18), an 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), a 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); 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. The bottom of the housing 1 is provided with two piston channels (26), and the piston (22) connected to the rotating joint (21) is located in the piston channel (26); The air inlet pipe 1 (6) is communicated with the gas-liquid premixer (23) located at the upper end of the shell 1, and the air inlet pipe 2 (14) is communicated with the gas-liquid premixer (23) located at the lower end of the shell.

2. The immersion type ultrasonic self-cleaning compressed packed bed according to claim 1, characterized in that: The outer shell (1) has 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 inner sides of the outer shell (1) are provided with outer baffles (10) and intermediate baffles (11) from the outside to the inside, respectively. The upper and lower ends of the outer baffles (10) are connected to the outer shell (1), and the length of the intermediate baffles (11) is shorter than that of the outer baffles (10).

3. The immersed ultrasonic self-cleaning compressed packed bed according to claim 1, characterized in that: The energy supply control device (3) further includes a motor switch (12); The ultrasonic controller (13) includes 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 1, 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.

5. The immersed ultrasonic self-cleaning compressed packed bed according to claim 1, characterized in that: The solid-liquid separator (24) comprises a shell three, wherein the shell three is provided with a drain valve (31) at one end close to the shell 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 the upper and lower inner walls of the shell three are provided with a plurality of staggered deflection baffles (33) made of aluminum alloy material, wherein 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, wherein a solid collecting tank (35) is provided in the lower shell (34), and the solid collecting tank (35) is threadedly connected to the shell.

6. The immersed ultrasonic self-cleaning compressed packed bed according to claim 1, characterized in that: 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 a horn-shaped housing (37). The ultrasonic transducer (5) is electrically connected to the ultrasonic controller (13).

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