An integrated device for ultrasonic oscillation atomization coupling synergistic enhancement of generation and distillation

Abstract

This invention relates to an integrated device for enhanced generation and rectification using ultrasonic oscillation atomization coupling, comprising a rectification section and a generation and stripping section. The rectification section, from top to bottom, includes a vapor outlet, a reflux inlet, a trough-type solution distributor, an oscillating atomizing packing ring, and a tray. The generation and stripping section, from top to bottom, includes a concentrated solution inlet, a collector, a perforated solution distributor, an inclined falling film tube, an annular ultrasonic atomizer, an annular ultrasonic oscillator, a perforated plate, a dilute solution outlet, and a heating water inlet. The oscillating atomizing packing ring, through the synergistic effect of high-frequency ultrasonic atomization and medium-to-low-frequency ultrasonic oscillation, increases the mass transfer area and mass transfer driving potential energy of the rectification section, thereby improving its performance. The annular ultrasonic atomizer facilitates heat and mass exchange between the atomized droplets and the rising vapor, whose temperature decreases progressively along the falling film height, replacing the stripping process in the rectification column. The annular ultrasonic oscillator overcomes the problem of reduced mass transfer driving potential of the falling film solution caused by the atomized droplets in the generation and stripping section.

Description

TECHNICAL FIELD

[0001] The present application relates to a generation and rectification integrated device applied to an ammonia water absorption refrigeration / heat pump system, which mainly enhances the heat and mass transfer of the generation and rectification process by using ultrasonic atomization and ultrasonic oscillation technology, and improves the structure of the generator and rectification tower. BACKGROUND

[0002] The ammonia water absorption refrigeration / heat pump cycle has important application value in the field of energy efficient utilization because it can efficiently utilize low-grade heat such as solar energy and industrial waste heat, and uses ammonia-water, which is an environmentally friendly working fluid pair, to produce high-grade cold energy as low as-30℃ or to increase the temperature of low-temperature heat. The core of the system is the generation and rectification of ammonia: the generator produces ammonia-water mixed vapor by boiling the concentrated ammonia water solution, and the rectification tower purifies the mixed vapor to reduce the water content, thereby avoiding the aggregation of water in the evaporator, which leads to a significant decrease in the coefficient of performance (COP) and the refrigeration / heat production of the system.

[0003] In the prior art, the generation and rectification of ammonia water are usually completed by independent generators and rectification towers, which have the problems of large equipment volume and low space utilization. For the rectification tower, although the traditional packed rectification tower can purify ammonia components, in order to obtain high-purity ammonia vapor, either the packing height is increased, leading to increased equipment manufacturing cost and expanded occupation, or the packing density is increased, which easily causes an increase in the vapor pressure drop in the tower, leading to liquid flooding, disrupting the normal flow of gas and liquid, and increasing the system operation energy consumption. For the generator, the conventional falling film generator relies on the liquid film formed on the surface of the heat exchange tube to exchange heat and mass with the heat source to generate vapor. The liquid film mass transfer boundary layer is thick, and the internal disturbance is weak, resulting in low mass transfer efficiency. Moreover, the generated vapor directly enters the rectification tower, and the gas-liquid contact area in the rectification process is limited, which further limits the overall generation and rectification efficiency of the system.

[0004] In addition, the independent generation and rectification equipment has the problems of complex pipeline connection and high heat loss, which is not conducive to the miniaturization and integration of the system. Therefore, it is a key requirement to develop a device that integrates generation and rectification, and can enhance the heat and mass transfer of the whole process through multi-frequency ultrasonic coupling, in order to solve the problems of the prior art and promote the efficient and miniaturized development of the ammonia water absorption refrigeration / heat pump system. SUMMARY

[0005] Technical Problem: This invention aims to solve the technical problems in existing ammonia absorption refrigeration / heat pump systems, such as the independent generation and distillation equipment, large size, low space utilization, low liquid film mass transfer efficiency in the generation process, limited gas-liquid contact area and insufficient heat and mass transfer driving force in the distillation process, and the inability to achieve synergistic enhancement of the entire generation-distillation process. It provides an integrated device for synergistic enhancement of generation and distillation through ultrasonic oscillation atomization coupling. Through integrated structural design and the synergistic effect of multi-frequency ultrasonic coupling, it fully utilizes the internal mass transfer space of the device, simultaneously improving the generation quality and distillation purity of ammonia, achieving device miniaturization, and improving the overall system performance.

[0006] Technical solution: To achieve the above objectives, the present invention provides an integrated device for ultrasonic oscillation atomization coupling synergistic enhancement of ammonia generation and distillation, which is used to improve the generation quality and purity of ammonia vapor in ammonia absorption refrigeration / heat pump system. The integrated device for generation and distillation has a distillation section and a stripping section inside the outer shell from top to bottom.

[0007] The rectification section is provided from top to bottom with a vapor outlet, a reflux liquid inlet, a tank-type solution distributor, an oscillating atomizing packing ring, and a tray;

[0008] The distillation section is provided from top to bottom with a concentrated solution inlet, a liquid collector, a perforated solution distributor, an inclined falling film tube, an orifice plate, a dilute solution outlet, and a heating water inlet. The upper end of the inclined falling film tube is connected to the perforated solution distributor, and the lower end of the inclined falling film tube is connected to the orifice plate. The middle section of the inclined falling film tube is equipped with an annular ultrasonic oscillator, and the upper part of the middle section of the inclined falling film tube is equipped with an annular ultrasonic atomizer.

[0009] The trough-type solution distributor includes a concentrated solution connecting pipe, a distribution plate, an overflow hole, and a rectangular air cylinder. One end of the concentrated solution connecting pipe is connected to the return liquid inlet, and the other end is connected to the central hole of the distribution plate. Multiple overflow holes are provided on the distribution plate, and multiple rectangular air cylinders are arranged side by side on the distribution plate.

[0010] The oscillating atomizing packing ring is a packing device that integrates annular low-frequency ultrasonic transducers and strip-shaped high-frequency ultrasonic atomizing transducers with a Pall packing ring. The annular low-frequency ultrasonic transducers are fixed around the middle of the Pall packing ring. There are two pairs of strip-shaped high-frequency ultrasonic atomizing transducers. The first pair of two strip-shaped high-frequency ultrasonic atomizing transducers are symmetrically fixed around the periphery of the Pall packing ring and located above the annular low-frequency ultrasonic transducers. The second pair of two strip-shaped high-frequency ultrasonic atomizing transducers are symmetrically fixed around the periphery of the Pall packing ring and located below the annular low-frequency ultrasonic transducers. The above four strip-shaped high-frequency ultrasonic atomizing transducers are arranged at a 90° staggered position around the periphery of the Pall packing ring.

[0011] The rectification section has multiple layers of packing, and each layer of packing is arranged with oscillating atomizing packing rings. The packing of the rectification section is arranged as follows: the axial direction of the odd-numbered layers of oscillating atomizing packing rings from bottom to top is parallel to the axial direction of the integrated distillation and rectification device, and the axial direction of the even-numbered layers of oscillating atomizing packing rings is perpendicular to the axial direction of the integrated distillation and rectification device.

[0012] The tower plate is equipped with multiple overflow holes and air riser holes.

[0013] The liquid collector is ring-shaped, with a main pipe at the upper part of the ring and a branch pipe at the lower part of the ring.

[0014] The perforated solution distributor is equipped with weir orifices.

[0015] The annular ultrasonic atomizer includes an annular ultrasonic atomizer vibrator, a clamp, and an annular baffle; the clamp is fixed to the outer periphery of the inclined falling film tube, the annular ultrasonic atomizer vibrator is located on the clamp, the lower part of the annular baffle is fixed to the outer periphery of the inclined falling film tube, and the upper part of the annular baffle surrounds the annular ultrasonic atomizer vibrator and the clamp.

[0016] The annular ultrasonic oscillator includes an ultrasonic oscillator element and a clamp; the clamp is fixed to the outer periphery of the inclined falling film tube, and the ultrasonic oscillator element is located on the clamp.

[0017] The orifice plate includes a dilute solution collection hole, a dilute solution outlet connecting pipe, and through holes; wherein, the dilute solution collection hole is located in the middle of the orifice plate, the dilute solution outlet connecting pipe is located below the orifice plate and connected to the dilute solution collection hole; the through holes are distributed in a circumferential shape on the orifice plate and are connected to the inclined falling film pipe.

[0018] The ultrasonic oscillation atomization coupled with synergistic enhancement of the integrated distillation device operates as follows: In the distillation section, the condensate enters the trough-type solution distributor through the reflux inlet. The reflux flows uniformly from the overflow hole on the distribution plate to the packing layer composed of oscillating atomizing packing rings. At this time, the reflux is a low-temperature solution rich in ammonia, flowing downwards in a film along the surface of the packing, contacting the high-temperature rising vapor with ammonia deficiency, and generating heat and mass transfer between the gas and liquid. The strip-shaped high-frequency ultrasonic atomizing transducers on the surface of the packing atomize the solution flowing over the surface into micron-sized droplets, which are dispersed in the gaps between the packing, greatly increasing the gas-liquid contact area. The annular medium-low frequency ultrasonic oscillating transducers directly act on the descending solution on the surface of the packing, enhancing the internal disturbance of the solution by adding an external force field, promoting the phase migration of ammonia and water components in the liquid film, and increasing the concentration of ammonia components on the surface of the solution. The high-purity ammonia vapor after distillation enters the external condenser through the rectangular riser from the vapor outlet at the top of the device and is condensed into liquid. Part of the condensate flows out from the reflux inlet of the trough-type solution distributor.

[0019] In the stripping section, the concentrated solution of the integrated distillation unit enters the perforated solution distributor through the concentrated solution inlet, and then overflows from the weir orifice to be evenly distributed to each inclined falling film tube. The concentrated solution forms a downward-flowing liquid film on the inclined falling film tube. Heating water enters the chamber formed by the orifice plate and the outer shell of the integrated distillation unit through the heating water inlet at the bottom, and is evenly distributed to each inclined falling film tube through the through-hole to provide a heat source for the falling film solution. The heating water flows upward along the falling film tube, enters the liquid collector through the branch pipe, and flows out of the integrated distillation unit through the main pipe. The device consists of a liquid film heated by countercurrent heating water inside the tube to generate steam. The steam flows upward along the gap of the inclined falling film tube and finally flows out through the weir orifice into the rectification section. The liquid film flows through an annular ultrasonic atomizer, where part of the solution is atomized into droplets and comes into contact with the rising steam to absorb water and remove ammonia, completing the distillation process. After the droplets undergo heat and mass exchange with the steam, their concentration decreases, and being captured by the liquid film will cause a decrease in the mass transfer driving potential on the surface of the liquid film. The ultrasonic oscillator acts inside the liquid film to increase the heat and mass transfer coefficients inside the liquid film, counteract the negative effects caused by the atomized droplets, and increase the amount of steam generated.

[0020] Beneficial effects: The ultrasonic oscillation atomization coupling synergistic enhanced distillation integrated device of the present invention, through integrated structural design and the coupling synergistic effect of multi-frequency ultrasonic waves, solves many pain points of the prior art and has the following significant advantages:

[0021] Achieving integrated generation and distillation significantly reduces equipment size: By integrating the generation, distillation, and rectification processes of ammonia into the same unit, the connecting pipeline between the generator and the distillation column is eliminated, making full use of the internal mass transfer space of the equipment, effectively reducing the equipment's footprint and manufacturing costs, and providing a new approach for the miniaturization and integration of ammonia absorption refrigeration / heat pump systems.

[0022] Multi-frequency ultrasonic coupling and synergy enhances heat and mass transfer throughout the entire process: In the rectification section, the oscillating atomizing packing ring combines 20–100 kHz low-to-medium frequency ultrasonic oscillation with 1–2 MHz high-frequency ultrasonic atomization. High-frequency atomization forms micron-sized droplets, significantly increasing the gas-liquid contact area, while low-to-medium frequency oscillation enhances internal disturbances and reduces the mass transfer boundary layer thickness. In the generation and stripping section, 30–80 kHz annular ultrasonic atomization ensures sufficient gas-liquid contact during the stripping process, while 20–100 kHz annular ultrasonic oscillation overcomes the reduction in mass transfer driving potential caused by atomized droplets, achieving synergistic enhancement of heat and mass transfer throughout the generation-stripping-rectification process.

[0023] Improving the quality of ammonia generation and distillation purity, and enhancing system performance: In the rectification section, ultrasonic coupling promotes the phase migration of ammonia and water components, significantly improving the purity of ammonia vapor at the top of the column; in the stripping section, ultrasonic enhancement significantly increases the vapor generation of the falling film solution, while the stripping process fully removes water components from the vapor, providing high-quality feed vapor for the rectification section, ultimately improving the system's coefficient of performance (COP).

[0024] Adjustable parameters to adapt to different operating conditions: The power, frequency and phase of the ultrasonic transducer (atomizing transducer and oscillating transducer) can be adjusted by an external controller group. It can adjust the ultrasonic parameters in a targeted manner according to the actual operating conditions of the ammonia absorption refrigeration / heat pump system and the spatiotemporal variation characteristics of the solution parameters in the device, so as to achieve optimal control of the heat and mass transfer enhancement effect. Attached Figure Description

[0025] The main features, objects, and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the overall structure of an integrated ultrasonic oscillation atomization coupling synergistic enhancement distillation device proposed in this invention;

[0027] Figure 2 for Figure 1 Schematic diagram of a medium-tank solution distributor;

[0028] Figure 3 for Figure 1 Arrangement diagram of the oscillating atomizing packing rings in the first and third layers of packing;

[0029] Figure 4 for Figure 1 Schematic diagram of the middle tower plate;

[0030] Figure 5 for Figure 1 Assembly diagram of the stripping section components;

[0031] Figure 6 for Figure 1 A schematic diagram of the installation structure of the ultrasonic atomizer and ultrasonic oscillator on a single falling film tube.

[0032] Figure 7 for Figure 1 Schematic diagram of the central liquid collector;

[0033] The diagram shows: 1. Equipment casing; 101. Steam outlet; 102. Reflux inlet; 103. Concentrated solution inlet; 104. Dilute solution outlet; 105. Heating water inlet; 2. Tank-type solution distributor; 201. Concentrated solution connecting pipe; 202. Distribution plate; 202. Overflow hole; 203. Rectangular air riser; 3. Vibrating atomizing packing ring; 301. Pall packing ring; 302. Strip-shaped high-frequency ultrasonic atomizing transducer; 303. Ring-shaped medium-low frequency ultrasonic transducer; 4. Tower plate; Overflow hole. 401, and rising air hole 402; perforated solution distributor 5, weir orifice 501; annular ultrasonic atomizer 6, ultrasonic atomizer vibrator 601, clamp 602, annular baffle 603; annular ultrasonic oscillator 7, ultrasonic oscillator vibrator 701, clamp 702; inclined falling film tube 8; orifice plate 9, dilute solution collection hole 901, dilute solution outlet connecting pipe 902, through hole 903; liquid collector 10, main pipe 1001, branch pipe 1002. Detailed Implementation

[0034] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. After reading this invention, any modifications of the invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0035] Overall assembly of the device

[0036] like Figure 1 As shown, the ultrasonic oscillation atomization coupling synergistic enhanced generation and distillation integrated device of the present invention has a vertical column structure, which is composed of an outer shell 1 forming an integral sealed cavity. From top to bottom, it is divided into a rectification section and a generation and stripping section. The assembly relationship of each component is as follows:

[0037] 1. A vapor outlet 101 is opened at the top of the rectification section, and a reflux inlet 102 is opened on the side. The reflux inlet 101 is connected to the tank-type solution distributor 2. The oscillating atomizing packing ring packing layer and the tray 4 are arranged in sequence below the tank-type solution distributor 2. The packing layer is composed of multiple layers of oscillating atomizing packing rings 3 arranged closely.

[0038] 2. A concentrated solution inlet 103 is opened on the upper side of the stripping section and connected to a perforated solution distributor 5. A collector 10 is installed above the perforated solution distributor 5, and multiple inclined falling film tubes 8 are evenly arranged below it. An annular ultrasonic atomizer 6 and an annular ultrasonic oscillator 7 are installed sequentially from top to bottom on the outer side of each inclined falling film tube 8, and are all fixed by clamps. An orifice plate 9 is installed below the inclined falling film tubes 8. A heating water inlet 105 is opened on the bottom side of the device shell 1, and a dilute solution outlet 104 is opened at the bottom. The dilute solution outlet connecting pipe 902 of the orifice plate 9 is sealed to the dilute solution outlet 104. The main pipe 1001 of the collector 10 passes through the device shell 1 to discharge the heating water.

[0039] Core component structure and parameters

[0040] 1. For example Figure 2 As shown, the trough-type solution distributor is equipped with four parallel rectangular air-lifting cylinders 204, which are arranged at equal intervals on the liquid distribution plate 202. Overflow holes 203 are opened on the liquid distribution plate 202 to achieve uniform distribution of the return liquid.

[0041] 2. For example Figure 3 As shown, the oscillating atomizing packing ring 3 uses a metal Pall packing ring 301 as the base; the annular low-frequency ultrasonic transducer 303 is welded to the middle of the Pall packing ring 301, with a frequency set to 50kHz and a power of 0-100W; the strip-shaped high-frequency ultrasonic atomizing transducer 302 is welded to both ends of the Pall packing ring 301 and arranged in a 90° staggered manner, with a frequency set to 1.5 MHz and a power of 0-100W.

[0042] 3. As one implementation method, the packing layer arrangement in the rectification section is as follows: Figure 3 As shown, the axial direction of the odd-numbered layers of oscillating atomizing packing ring 3 is perpendicular to the axis of the device, while the axial direction of the even-numbered layers of oscillating atomizing packing ring 3 is parallel to the axis of the device. The number of oscillating atomizing packing rings 3 in each layer is determined according to the diameter of the tower. In this embodiment, 25 rings are arranged in each layer to ensure the porosity and gas-liquid flow of the packing layer.

[0043] 4. As one implementation method, the inclined falling film tubes are arranged as follows: Figure 5 As shown, the straight pipe sections at both ends and the main pipe section are set at a certain angle, and the falling film pipes are evenly distributed in a circumferential array to ensure that the concentrated solution can form a stable falling film on the pipe surface.

[0044] 5. As one implementation method, the annular ultrasonic atomizer 6 is installed as follows: Figure 6 As shown, it is fixed to the lower part of the inclined falling film tube 8 by clamp 602, and an annular baffle 603 is set on the outside to collect the falling film solution by the annular ultrasonic atomizer 6.

[0045] 6. As one implementation method, the ring ultrasonic oscillator 7 is installed as follows: Figure 6 As shown, it is fixed below the annular ultrasonic atomizer 6 by clamp 702 and acts directly on the liquid film on the surface of the inclined falling film tube 8.

[0046] Device operation process

[0047] The ultrasonic oscillation atomization coupling synergistic enhanced distillation integrated device of this embodiment is applied to an industrial waste heat-driven ammonia absorption refrigeration system. The specific operation process is as follows:

[0048] 1. Rectification Section Operation: The condensate (rich ammonia solution) from the external condenser enters the tank-type solution distributor 2 through the reflux inlet 102, and is evenly sprayed onto the 8-layer oscillating atomizing packing ring 3 through the overflow hole 203 of the distribution plate 202. The condensate flows downward in a film along the surface of the oscillating atomizing packing ring 3, and comes into countercurrent contact with the lean ammonia rising vapor from the stripping section. At this time, the strip-shaped high-frequency ultrasonic atomizing transducer 302 is turned on, atomizing the solution into fine droplets and dispersing them in the gaps between the packings. The gas-liquid contact area is increased by more than 3 times compared with traditional packed towers. The annular medium-low frequency ultrasonic transducer 303 is turned on simultaneously to enhance the internal disturbance of the solution and promote the phase migration of ammonia and water components in the liquid film. The high-purity ammonia vapor after rectification flows upward through the rectangular riser 204 and the riser hole 402 of the tower plate 4, and enters the external condenser from the vapor outlet 101. The condensate is returned to the unit as reflux liquid, and the remainder is output as refrigerant vapor for the refrigeration system.

[0049] 2. Operation of the stripping section: The concentrated ammonia solution from the refrigeration system enters the perforated solution distributor 5 through the concentrated solution inlet 103, and is evenly distributed to the surface of the inclined falling film tube 8 through the weir orifice 501, forming a stable falling film; the heating water enters the bottom of the device through the heating water inlet 105, and enters the interior of the inclined falling film tube 8 through the through-hole 903 of the orifice plate 9, where it exchanges heat countercurrently with the concentrated solution outside the tube, enters the collector 10 through the branch pipe 1002, and is discharged from the device through the main pipe 1001; the concentrated solution film is heated by the heating water, generating ammonia-water mixed vapor, which flows along the inclined falling film tube 8 The liquid film flows upward through the gap; when it flows through the annular ultrasonic atomizer 6, the solution is atomized into fine droplets, which come into full contact with the rising vapor to carry out a distillation reaction and remove the water component from the vapor; the annular ultrasonic oscillator 7 is turned on simultaneously to strengthen the oscillation of the liquid film and overcome the problem of reduced mass transfer driving potential caused by the capture of atomized droplets; the dilute ammonia solution that has completed generation-distillation flows downward through the inclined falling film tube 8, is collected by the dilute solution collection hole 901 of the orifice plate 9, and flows out of the device through the dilute solution outlet 104.

[0050] All ultrasonic transducers (oscillating transducers and atomizing transducers) in this invention are uniformly controlled by an external ultrasonic controller group. The cable between the controller group and the transducer is sealed with epoxy resin to prevent solution corrosion. The controller group can adjust the power, frequency, and phase of the transducer. The phase difference is controlled by setting the start-up time through a microcontroller. According to the spatiotemporal changes of parameters such as temperature and concentration of the solution in the device, the ultrasonic parameters can be adjusted in real time. For example, when the solution temperature in the rectification section rises, the power of the high-frequency atomizing transducer is appropriately increased to increase the amount of atomized droplets. When the concentration of the dilute solution in the stripping section is too low, the frequency of the annular oscillating transducer is increased to enhance the internal disturbance of the liquid film and increase the amount of vapor generated.

[0051] The scope of protection of this invention is not limited to the above embodiments. For those skilled in the art, without departing from the principle of this invention, various improvements and modifications can be made to the component structure, ultrasonic parameters, number / quantity of packing layers, and arrangement of inclined falling film tubes of the device. These improvements and modifications should also be considered within the scope of protection of this invention.

Claims

1. An integrated ultrasonic oscillation atomization coupled with synergistic enhancement of ammonia generation and distillation, used to improve the quality and purity of ammonia generation in ammonia absorption refrigeration / heat pump systems, characterized in that: The integrated distillation and rectification apparatus is provided with a rectification section and a stripping section inside the outer shell (1) from top to bottom; The distillation section is provided with a vapor outlet (101), a reflux liquid inlet (102), a tank-type solution distributor (2), an oscillating atomizing packing ring (3), and a tray (4) from top to bottom. The distillation section is provided from top to bottom with a concentrated solution inlet (103), a liquid collector (10), a perforated solution distributor (5), an inclined falling film tube (8), an orifice plate (9), a dilute solution outlet (104), and a heating water inlet (105). The upper end of the inclined falling film tube (8) is connected to the perforated solution distributor (5), and the lower end of the inclined falling film tube (8) is connected to the orifice plate (9). The middle section of the inclined falling film tube (8) is provided with an annular ultrasonic oscillator (7), and the upper part of the middle section of the inclined falling film tube (8) is provided with an annular ultrasonic atomizer (6).

2. The ultrasonic oscillation atomization coupled with synergistic enhancement of distillation integrated device according to claim 1, characterized in that, The trough-type solution distributor (2) includes a concentrated solution connecting pipe (201), a distribution plate (202), an overflow hole (203), and a rectangular air cylinder (204). One end of the concentrated solution connecting pipe (201) is connected to the return liquid inlet (102), and the other end is connected to the central hole of the distribution plate (202). Multiple overflow holes (203) are provided on the distribution plate (202), and multiple rectangular air cylinders (204) are arranged side by side on the distribution plate (202).

3. The ultrasonic oscillation atomization coupled with synergistic enhancement of distillation integrated device according to claim 2, characterized in that, The oscillating atomizing packing ring (3) is a packing device that combines an annular low-frequency ultrasonic transducer (303) and a strip-shaped high-frequency ultrasonic atomizing transducer (302) with a Pall packing ring (301). The annular low-frequency ultrasonic transducer (303) is fixed around the middle of the Pall packing ring (301). There are two pairs of strip-shaped high-frequency ultrasonic atomizing transducers (302). The first pair of two strip-shaped high-frequency ultrasonic atomizing transducers (302) are symmetrically fixed around the periphery of the Pall packing ring (301) and located on the upper part of the annular low-frequency ultrasonic transducer (303). The second pair of two strip-shaped high-frequency ultrasonic atomizing transducers (302) are symmetrically fixed around the periphery of the Pall packing ring (301) and located on the lower part of the annular low-frequency ultrasonic transducer (303). The above four strip-shaped high-frequency ultrasonic atomizing transducers (302) are arranged in a staggered pattern at 90° around the periphery of the Pall packing ring (301).

4. The ultrasonic oscillation atomization coupled with synergistic enhancement of distillation integrated device according to claim 3, characterized in that, The rectification section has multiple layers of packing, and each layer of packing is arranged with oscillating atomizing packing rings (3). The packing of the rectification section is arranged as follows: the axial direction of the odd-numbered layers of oscillating atomizing packing rings (3) from bottom to top is parallel to the axial direction of the integrated rectification device, and the axial direction of the even-numbered layers of oscillating atomizing packing rings (3) is perpendicular to the axial direction of the integrated rectification device.

5. The ultrasonic oscillation atomization coupled with synergistic enhancement of distillation integrated device according to claim 4, characterized in that, The tower plate (4) is provided with multiple overflow holes (401) and air riser holes (402).

6. The ultrasonic oscillation atomization coupled with synergistic enhancement of distillation integrated device according to claim 5, characterized in that, The liquid collector (10) is annular, with a main pipe (1001) at the upper part of the ring and a branch pipe (1002) at the lower part of the ring.

7. The ultrasonic oscillation atomization coupled with synergistic enhancement of distillation integrated device according to claim 6, characterized in that, The perforated solution distributor (5) is provided with a weir orifice (501).

8. The ultrasonic oscillation atomization coupled with synergistic enhancement of distillation integrated device according to claim 7, characterized in that, The annular ultrasonic atomizer (6) includes an annular ultrasonic atomizer vibrator (601), a clamp (602), and an annular baffle (603); the clamp (602) is fixed on the outer periphery of the inclined falling film tube (8), the annular ultrasonic atomizer vibrator (601) is located on the clamp (602), the lower part of the annular baffle (603) is fixed on the outer periphery of the inclined falling film tube (8), and the upper part of the annular baffle (603) surrounds the annular ultrasonic atomizer vibrator (601) and the clamp (602).

9. The ultrasonic oscillation atomization coupled with synergistic enhancement of distillation integrated device according to claim 8, characterized in that, The annular ultrasonic oscillator (7) includes an ultrasonic oscillator vibrator (701) and a clamp (702); the clamp (702) is fixed on the outer periphery of the inclined falling film tube (8), and the ultrasonic oscillator vibrator (701) is located on the clamp (702).

10. The ultrasonic oscillation atomization coupled with synergistic enhancement of distillation integrated device according to claim 9, characterized in that, The orifice plate (9) includes a dilute solution collection hole (901), a dilute solution outlet connecting pipe (902), and a through hole (903); wherein, the dilute solution collection hole (901) is located in the middle of the orifice plate (9), the dilute solution outlet connecting pipe (902) is located below the orifice plate (9) and connected to the dilute solution collection hole (901); the through hole (903) is located on the orifice plate (9) in a circumferential distribution and is connected to the inclined falling film pipe (8).

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