Asymmetric array beat ultrasonic enhanced reaction crystallization apparatus

Abstract

The application discloses an asymmetric array beat ultrasonic reinforcement reaction crystallization device, which comprises a tubular reactor main body, an ultrasonic transducer group and an ultrasonic generator control cabinet, a plurality of ultrasonic transducer groups are fixed on the side wall of the circumferential direction of the tubular reactor main body, the ultrasonic transducer groups are arranged along the axial direction of the tubular reactor main body at intervals, each ultrasonic transducer group comprises at least three ultrasonic transducers, the ultrasonic transducers in each ultrasonic transducer group are arranged at intervals along the circumferential direction of the tubular reactor main body, the radiation end of each ultrasonic transducer extends into the inner cavity of the tubular reactor main body, the wiring end of each ultrasonic transducer is electrically connected to the ultrasonic generator control cabinet through a cable, and the ultrasonic generator control cabinet can supply power to each ultrasonic transducer and respectively control the start-stop and operation frequency of each ultrasonic transducer. The application effectively improves the uniformity of ultrasonic energy distribution in the space of a large tubular reactor and improves the mixing effect of the reactor material.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and in particular to an asymmetric array beat ultrasound-enhanced reaction crystallization device. Background Technology

[0002] Continuous crystallization, a key technology for the large-scale production of crystalline products, often employs tubular reactors to achieve rapid mixing and continuous reaction of reactants. However, tubular reactors also have inherent drawbacks, specifically uneven mixing of materials within the pipes. To overcome this problem, existing technologies add mixing elements within the reactor (such as patent CN209854033U, which uses vertically or cross-placed straight plates or corrugated pipes within the reaction tube) to enhance the mixing intensity of reactants and improve reaction efficiency; simultaneously, a feed pipe is installed in the middle of the reaction tube to replenish materials and maintain the optimal reaction concentration. Although these improvements enhance the mixing and crystallization effect to some extent, this structure does not fundamentally solve the essential problem of uniform mixing of materials within the reaction tube. Summary of the Invention

[0003] To overcome the above deficiencies, the present invention provides an asymmetric array beat ultrasound-enhanced reaction crystallization device, which can improve the material mixing effect in a tubular reactor.

[0004] The technical solution adopted by this invention to solve its technical problem is: an asymmetric array beat ultrasound-enhanced reaction crystallization device, comprising a tubular reactor body, an ultrasonic transducer group, and an ultrasonic generator control cabinet. Several ultrasonic transducer groups are fixedly installed on the circumferential sidewall of the tubular reactor body. Each ultrasonic transducer group is arranged at intervals along the axial direction of the tubular reactor body. Each ultrasonic transducer group includes at least three ultrasonic transducers. Each ultrasonic transducer in each ultrasonic transducer group is arranged at intervals along the circumferential direction of the tubular reactor body, and the radiation end of each ultrasonic transducer extends into the inner cavity of the tubular reactor body. The wiring terminals of each ultrasonic transducer are electrically connected to the ultrasonic generator control cabinet through cables. The ultrasonic generator control cabinet can supply power to each ultrasonic transducer and control the start-up, shutdown, and operating frequency of each ultrasonic transducer.

[0005] The tubular reactor body is the main component of the overall tubular reactor. The ultrasonic transducer assembly is installed on the tubular reactor body to form a modular structure. The radiating end of the ultrasonic transducer extends into the inner cavity of the tubular reactor body and acts on the flowing material. The wiring terminals of the ultrasonic transducer are connected to the ultrasonic generator control cabinet through cables to achieve unified power supply and parameter control. By controlling the start and stop of the ultrasonic transducer, a complex and relatively regular ultrasonic field distribution is formed in the tubular reactor, which creates turbulence in the reaction system and overcomes the shortcomings of uneven material mixing in traditional tubular reactors.

[0006] As a further improvement of the present invention, each ultrasonic transducer extends radially along the main body of the tubular reactor, with its terminals exposed on the outside of the main body of the tubular reactor. The ultrasonic transducers in the same group are on the same cross-section of the main body of the tubular reactor. Ideally, the ultrasonic transducers in each group are evenly spaced along the circumference on the same cross-section of the main body of the tubular reactor.

[0007] As a further improvement of the present invention, the installation angle of each ultrasonic transducer in each group of ultrasonic transducers is different from the installation angle of each ultrasonic transducer in the other groups. This installation method results in an asymmetrical installation structure for the ultrasonic transducer groups on the tubular reactor body, forming an asymmetrical ultrasonic field within the tubular reactor. The beat-like excitation further enhances the diffusion of ultrasound on a large scale, thereby achieving better material mixing.

[0008] As a further improvement of the present invention, four sets of ultrasonic transducer groups are installed on each tubular reactor body, and the ultrasonic transducer groups are evenly distributed along the axial direction of the tubular reactor body. Different numbers of ultrasonic transducer groups and the number of transducers in each group can be selected according to the size of the tubular reactor body.

[0009] As a further improvement of the present invention, each ultrasonic transducer is fixed to the tube wall of the tubular reactor body by a sealing flange. This installation method allows for the fixed installation and quick disassembly of each ultrasonic transducer, enabling the replacement of ultrasonic transducers of different specifications as needed. It also facilitates the quick replacement and repair of faulty ultrasonic transducers. In addition, each ultrasonic transducer can also be fixed to the tube wall of the tubular reactor body by other means, such as welding, riveting, etc. These are all equivalent alternatives that can be easily conceived by those skilled in the art based on this application, and are all within the scope of protection of this application.

[0010] As a further improvement of the present invention, the ultrasonic generator control cabinet can control the start and stop time of each ultrasonic transducer. The control cabinet can also control the alternating start and stop of each ultrasonic transducer to enhance the turbulent effect of ultrasound within the main tubular cavity of the tubular reactor. The ultrasonic generator control cabinet can control each ultrasonic transducer according to the material mixing effect, achieving sufficient dispersion of materials within the tubular reactor.

[0011] As a further improvement of the present invention, a flow sensor is installed inside the tubular reactor body. The flow sensor can detect the flow signal inside the tubular reactor and communicates with the ultrasonic generator control cabinet in real time. During the operation of the tubular reactor, the flow sensor detects the flow rate of the material inside the tubular reactor in real time and transmits the detection signal to the ultrasonic generator control cabinet. This allows the control program in the ultrasonic generator control cabinet to dynamically adjust the start-up timing and operating frequency of each ultrasonic transducer based on the flow data, forming an optimized ultrasonic field inside the tubular reactor. This, in turn, excites the material inside the tubular reactor to form high-intensity turbulence, thus fully dispersing the crystal particles in the material inside the tubular reactor.

[0012] As a further improvement of the present invention, the main body of the tubular reactor is a straight tube structure, with the cross-section preferably being a circular tube, but it can also be a square tube.

[0013] As a further improvement of the present invention, the tubular reactor body is provided with connecting flanges at both axial ends. The reaction crystallization device also includes a reactor end cap and a reactor bend joint. Connecting flanges are also provided at both ends of the reactor end cap and the reactor bend joint. Adjacent tubular reactor bodies, the tubular reactor body and the reactor end cap, and the tubular reactor body and the reactor bend joint are sealed together by connecting flanges. The reactor end cap achieves closure at both ends of the tubular reactor. The connection between the reactor bend structure and each straight-tube structure of the tubular reactor body allows the tubular reactor to form a repeatedly bent structure, reducing the requirements for the installation site. The reactor bend joint can also be omitted, and multiple straight-tube structure tubular reactor bodies can be directly connected sequentially to form a straight-tube type tubular reactor.

[0014] As a further improvement of the present invention, the outer ring of the connecting flange end face is provided with a plurality of connecting holes spaced apart along its circumference, and the inner ring of the connecting flange end face is provided with a sealing groove. The mating connecting flanges are fixedly connected by connecting screws passing through the corresponding connecting holes. A sealing ring is tightly clamped in the sealing groove of the inner ring of the mating connecting flange end face to achieve a seal between the mating connecting flanges. When the connecting flanges are mated, while being locked and fixed by the connecting screws, the sealing ring tightly clamped on the mating connecting flanges can achieve a seal between the connecting flanges, ensuring the airtightness of the tubular reactor cavity and preventing leakage.

[0015] The beneficial technical effects of this invention are as follows: By arranging multiple sets of ultrasonic transducers on the main body of the tubular reactor, these sets of transducers form a complex and relatively regular ultrasonic field distribution inside the reactor body, thereby creating turbulence in the reaction system and overcoming the shortcomings of uneven material mixing in traditional tubular reactors. Furthermore, by utilizing the different installation angles between the ultrasonic transducers in adjacent sets, an asymmetrical installation of the ultrasonic transducers is achieved, effectively improving the uniformity of ultrasonic energy distribution within the large tubular reactor space and enhancing the material mixing effect. This invention also creates space between the ultrasonic transducers in each set for installing stirring equipment, cleverly avoiding the conflict between the installation conditions of traditional stirring equipment and the structure of a multi-stage continuous tubular reactor. This further improves the reactor's production capacity and quality without affecting the normal process flow. Attached Figure Description

[0016] Figure 1 This is a three-dimensional diagram illustrating the structural principle of the present invention;

[0017] Figure 2 This is a front view of the main body of the tubular reactor with ultrasonic transducer array installed in this invention.

[0018] Figure 3 This is a top view of the main body of the tubular reactor with ultrasonic transducer array installed in this invention. Detailed Implementation

[0019] Example: An asymmetric array beat ultrasound-enhanced reaction crystallization device includes a tubular reactor body 10, ultrasonic transducers 20, and an ultrasonic generator control cabinet 30. Multiple sets of ultrasonic transducers 20 are distributed axially at intervals along the tubular reactor body 10 and are uniformly distributed at equal axial distances. Each set of ultrasonic transducers 20 contains three ultrasonic transducers 20, and the axes of all transducers in each set are located within the same cross-section of the tubular reactor body 10. The axes of the ultrasonic transducers 20 in the same set intersect on the center line of the tubular reactor body 10. The distribution of multiple sets of ultrasonic transducers 20 on the tubular reactor body 10 is asymmetric. Specifically, the angle difference between the axis of a single ultrasonic transducer 20 and the next nearest ultrasonic transducer 20 in the cross-section is 30°. This angle can be adjusted between 0-180° according to actual needs.

[0020] The tubular reactor body 10 is provided with connecting flanges 11 at both axial ends. The reaction crystallization device also includes a reactor end cap and a reactor bend joint. The reactor end cap and reactor bend joint are also provided with connecting flanges 11 at both ends. The two adjacent tubular reactor bodies 10, the tubular reactor body 10 and the reactor end cap, and the tubular reactor body 10 and the reactor bend joint are sealed and connected by connecting flanges 11, thereby allowing the ultrasonic transducer 20 to be fixed to the tube wall of the tubular reactor body 10 through the connecting flanges 11. The outer ring of the end face of the connecting flange 11 is provided with several circumferential squares. The connecting flanges 11 have spaced-apart connecting holes 111. A sealing groove 112 is provided on the inner ring of the end face of each connecting flange 11. The mating connecting flanges 11 are fixedly connected by connecting screws passing through the corresponding connecting holes 111. A sealing ring is tightly clamped in the sealing groove 112 of the inner ring of the end face of the mating connecting flanges 11 to achieve a seal between them. The radiating end 21 of the ultrasonic transducer 20 extends into the inner cavity of the tubular reactor body 10, while the wiring terminal 22 of the ultrasonic transducer 20 protrudes from the outside of the tubular reactor body 10. The wiring terminal 22 of the ultrasonic transducer 20 is connected to the ultrasonic generator control cabinet 30 via a cable. The ultrasonic generator control cabinet 30 can control each ultrasonic transducer 20 to operate at a fixed frequency or at different frequencies within different time periods through an internally programmed program. It can also be set to allow the ultrasonic transducers 20 to operate sequentially at different frequencies to enhance the turbulence effect of the ultrasound.

[0021] During use, the reaction liquid or crystal slurry enters from the inlet end of the tubular reactor body 10 and mixes inside the tubular reactor body 10. Then, the ultrasonic generator control cabinet 30 receives the flow signal detected by the flow sensor inside the tubular reactor body 10 and dynamically adjusts the start-up sequence and operating frequency of each ultrasonic transducer 20. The ultrasonic field with optimized parameters excites high-intensity turbulence inside the tubular reactor body 10, which fully disperses the crystal particles in the reaction liquid. At the same time, it promotes nucleation and inhibits agglomeration through cavitation effect, thereby achieving uniform enhancement of the crystallization process.

Claims

1. A reaction crystallization device enhanced by asymmetric array beat ultrasound, characterized in that: The system includes a tubular reactor body (10), an ultrasonic transducer group, and an ultrasonic generator control cabinet (30). Several ultrasonic transducer groups are fixedly installed on the side wall of the tubular reactor body in the circumferential direction. Each ultrasonic transducer group is arranged at intervals along the axial direction of the tubular reactor body. Each ultrasonic transducer group includes at least three ultrasonic transducers (20). Each ultrasonic transducer in each ultrasonic transducer group is arranged at intervals along the circumferential direction of the tubular reactor body, and the radiation end (21) of each ultrasonic transducer extends into the inner cavity of the tubular reactor body. The wiring terminal (22) of each ultrasonic transducer is electrically connected to the ultrasonic generator control cabinet through a cable. The ultrasonic generator control cabinet can supply power to each ultrasonic transducer and control the start-up, shutdown, and operating frequency of each ultrasonic transducer.

2. The asymmetric array beat-sonic enhanced reaction crystallization device according to claim 1, characterized in that: Each ultrasonic transducer extends radially along the main body of the tubular reactor, with its wiring terminals exposed on the outside of the main body of the tubular reactor. The ultrasonic transducers in the same group are on the same cross-section of the main body of the tubular reactor.

3. The asymmetric array beat-sonic enhanced reaction crystallization device according to claim 2, characterized in that: The installation angle of each ultrasonic transducer in each group is different from that of each ultrasonic transducer in other groups.

4. The asymmetric array beat-sonic enhanced reaction crystallization device according to claim 1, characterized in that: Four sets of ultrasonic transducers are installed on each tubular reactor body, and the ultrasonic transducer sets are distributed at equal intervals along the axial direction of the tubular reactor body.

5. The asymmetric array beat-sonic enhanced reaction crystallization device according to claim 1, characterized in that: Each ultrasonic transducer is fixed to the tube wall of the tubular reactor body via a sealing flange.

6. The asymmetric array beat-sonic enhanced reaction crystallization device according to claim 1, characterized in that: The ultrasonic generator control cabinet can control the start and stop time of each ultrasonic transducer. The ultrasonic generator control cabinet can also control the ultrasonic transducers to start and stop alternately to enhance the turbulence effect of ultrasound in the main tube cavity of the tubular reactor.

7. The asymmetric array beat-sonic enhanced reaction crystallization apparatus according to claim 1 or 6, characterized in that: The tubular reactor body is equipped with a flow sensor, which can detect the flow signal inside the tubular reactor. The flow sensor communicates with the ultrasonic generator control cabinet in real time.

8. The asymmetric array beat-sonic enhanced reaction crystallization device according to claim 1, characterized in that: The main body of the tubular reactor is a straight tube structure.

9. The asymmetric array beat-sonic enhanced reaction crystallization apparatus according to claim 8, characterized in that: The tubular reactor body is provided with connecting flanges (11) at both ends of the axial direction. The reaction crystallization device also includes a reactor end cover and a reactor bend joint. The reactor end cover and the reactor bend joint are also provided with connecting flanges at both ends. The two adjacent tubular reactor bodies, the tubular reactor body and the reactor end cover, and the tubular reactor body and the reactor bend joint are sealed and connected by connecting flanges.

10. The asymmetric array beat-sonic enhanced reaction crystallization apparatus according to claim 8 or 9, characterized in that: The outer ring of the connecting flange end face is provided with several connecting holes (111) arranged at intervals along its circumference, and the inner ring of the connecting flange end face is provided with a sealing groove (112). The mating connecting flanges are fixedly connected by connecting screws that pass through the corresponding connecting holes. A sealing ring is tightly clamped in the sealing groove of the inner ring of the mating connecting flange end face to achieve sealing between the mating connecting flanges.

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