Rectification equipment and application thereof

Abstract

The invention relates to the technical field of refining separation, and discloses rectification equipment and application thereof, the rectification equipment comprises a rectification tower, the rectification tower is filled with a filler, the filler is internally provided with an ultrasonic amplifier, and the ultrasonic amplifier is connected with an ultrasonic generation device. The ultrasonic generator is connected with the ultrasonic transducers through leads, and each ultrasonic amplifier corresponds to a plurality of ultrasonic transducers. And the ultrasonic amplifier is arranged in the filler and is connected with the ultrasonic transducer outside the tower wall through a converter. The ultrasonic amplifier can uniformly transfer energy to nearby filler and liquid. By utilizing the vibration and crushing effects of ultrasonic waves, the gas-liquid distribution in the tower is more uniform, the heat transfer and mass transfer of the gas-liquid phase in the filler are enhanced, and the fluctuation of the vacuum degree in the tower is reduced; and moreover, impurities or heavy components which are high in viscosity and difficult to separate in the filler can be prevented and eliminated, so that the packed tower can operate in a clean and stable state for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of refining and separation, and particularly relates to a distillation apparatus and its application. Background Art

[0002] A distillation column is a common device in the petrochemical field, used to separate and purify the components in a mixture according to the difference in boiling points. In a distillation column, a packed column is a common design form, which provides a larger mass transfer area through the packing loaded inside to increase the contact and mass transfer between the liquid and gas. The packing of a packed column is usually a material with a high surface area and good wettability, such as a mesh structure or a block made of metal or plastic. Common packing materials include wire mesh, ceramic rings, plastic balls, etc.

[0003] The working principle of a packed column is to introduce the mixture into the packing layer inside the column, and at the same time inject steam or a heat source at the bottom of the column. In the packing layer, the liquid components and gas components come into contact. Due to the difference in boiling points, part of the liquid components vaporize, and part of the gas components liquefy. This contact and transfer of the gas-liquid phase lead to the separation of the components in the mixture. The heavier components gradually settle to the bottom of the column, and the lighter components rise to the top of the column. Through reasonable packing selection and column design, a packed column can achieve an efficient distillation and separation process. However, its performance is also affected by multiple factors such as the selection of packing, the height of the packing layer, the feed rate, the operating temperature and pressure, etc.

[0004] Compared with a plate column, a packed column has a larger gas-liquid mass transfer and heat transfer area and a lower pressure drop. However, due to the need to consider issues such as the form of the packing and the flow characteristics of the gas-liquid two-phase, the requirements for the design and selection ability are also higher. In addition, due to the characteristics of the porous medium inside the packing, when the liquid phase substance descends inside the packing, phenomena such as uneven flow will inevitably occur. At the same time, for systems with high viscosity, high boiling point, and high impurity content, after long-term use, the material is likely to remain inside the packing, gradually accumulate to form a dead zone, and then greatly reduce the gas-liquid separation efficiency. More seriously, it will lead to flooding of the column and shutdown of the device.

[0005] Therefore, developing a distillation system specifically for high-viscosity, high-boiling-point, and multi-impurity systems can not only effectively improve the gas-liquid separation efficiency and maintain the long-term operation of the device, but also have significant economic benefits.

[0006] CN108499146 A discloses an ultrasonic bubble-cap column rectification device for material separation. This device includes a fixed housing, an inlet / outlet mechanism, a sealing mechanism, a mounting mechanism, a rotating mechanism, a material separation mechanism, an ultrasonic generator, and a connecting mechanism; the inlet / outlet mechanism for feeding and discharging materials and gas is connected to the fixed housing; the mounting mechanism for facilitating the installation and replacement of the material separation mechanism is connected to one side of the fixed housing; the material separation mechanism for purifying and separating materials is connected to the sliding mounting plate; the rotating mechanism for driving the material separation mechanism to rotate is arranged on the sliding mounting plate; the ultrasonic generator for generating ultrasonic waves to oscillate the liquid in the tray is arranged in the sliding mounting plate on the same horizontal line as the tray. This device has many moving devices, a complex structure, a risk of leakage, a large equipment investment, and a high subsequent maintenance cost.

[0007] CN215026114 U discloses a multi-functional continuous rectification device for high-temperature and high-viscosity products. The device includes a raw material tank, a rectification column, a reboiler, a conveying system, an automatic distributor, a top condenser, a vacuum system, and a product collection system. The raw material tank is connected to the rectification column, the rectification column is connected to the reboiler through the conveying system, the top condenser is connected to the top of the rectification column through the automatic distributor, the vacuum system is connected to the top condenser, and the product collection system is connected to the rectification column. The device realizes the continuous rectification of high-temperature and high-viscosity products by accurately controlling the temperature and vacuum of the rectification column, but does not innovate from the aspect of tower internals and does not make a more detailed description on how to accurately control the temperature and vacuum of the rectification column.

[0008] In order to ensure the mass transfer and heat transfer effect between gas and liquid in a high-viscosity, high-boiling-point, and multi-impurity system, ensure the gas-liquid separation efficiency and the stable operation of the device, and improve economic benefits and safety levels, it is necessary to ensure the uniform distribution of the liquid phase in the packing. Summary of the Invention

[0009] The purpose of the present invention is to overcome the problems existing in the prior art, such as poor gas-liquid separation efficiency for high-temperature, high-viscosity, and multi-impurity systems, easy blockage of the packing by high-viscosity materials and impurities, poor equipment safety and process stability, etc., and provide a rectification device and its application, which have the advantages of improving separation efficiency and extending the service life of the packing.

[0010] In order to achieve the above purpose, on the one hand, the present invention discloses a rectification device, which includes a rectification column filled with packing, an ultrasonic amplifier is installed in the packing, and the ultrasonic amplifier is connected to an ultrasonic generating device.

[0011] The second aspect of the present invention discloses the application of the rectification equipment of the present invention in a thermosensitive system, preferably in a thermosensitive system with high viscosity and high boiling point, wherein the high viscosity means the viscosity is greater than 300 cP, and the high boiling point means the boiling point is greater than 200 °C.

[0012] In the above technical solution, by installing an ultrasonic amplifier in the packing, the present invention can improve the separation efficiency of the rectification column, extend the service life of the packing, and also extend the maintenance period of the rectification column, ensuring the safe operation of the packed column. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the rectification equipment according to some embodiments of the present invention;

[0014] Figure 2 is Figure 1 a partial enlarged view of the packing section of the rectification column in

[0015] Figure 3 is a schematic diagram of the adapter according to some embodiments of the present invention;

[0016] Figure 4 is a schematic structural diagram of the ultrasonic amplification member according to some embodiments of the present invention.

[0017] DESCRIPTION OF THE REFERENCE NUMERALS

[0018] 101 Rectification column; 102 Ultrasonic generator; 103 Ultrasonic transducer; 104 Sleeve; 105 Adapter; 105-1 First connection section; 105-2 First connection section; 106 Ultrasonic amplifier; 106-1 Support body; 106-11 Annular support portion; 106-12 Connection portion; 106-2 Ultrasonic amplification body; 106-21 Vertical rod; 106-22 Branch; 107 Support grid; 108 Liquid redistributor; 109 Packing section. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustration and explanation of the present invention, and are not intended to limit the present invention.

[0020] In the ranges disclosed herein, the endpoints and any values are not limited to the exact ranges or values, and these ranges or values should be understood to include values close to these ranges or values. For numerical ranges, between the endpoint values of each range, between the endpoint values of each range and individual point values, and between individual point values, they can be combined with each other to obtain one or more new numerical ranges, and these numerical ranges should be regarded as specifically disclosed herein.

[0021] In the present invention, unless otherwise specified, the orientation terms such as "upper, lower, top, bottom" are generally used in relation to the directions shown in the drawings or in relation to the vertical, perpendicular or gravitational directions for describing the relative positional relationships of the components.

[0022] On the one hand, the present invention discloses a rectification device, such as Figure 1 shown, the rectification device includes a rectification column 101 filled with packing, an ultrasonic amplifier 106 is installed in the packing, and the ultrasonic amplifier 106 is connected to an ultrasonic generating device.

[0023] By installing an ultrasonic amplifier in the packing, the present invention utilizes the vibration and fragmentation effects of ultrasonic waves, which can not only make the gas-liquid distribution in the tower more uniform, strengthen the heat and mass transfer between the gas and liquid phases in the packing, and reduce the fluctuation of the vacuum degree in the tower; but also prevent and eliminate impurities or heavy components with high viscosity and difficult to separate in the packing, enabling the packing tower to operate in a clean and stable state for a long time; in addition, the heat transfer efficiency of the dead zone in the tower can also be enhanced by using the heating of ultrasonic waves. The present invention can not only improve the separation efficiency of the rectification column, extend the service life of the packing, but also extend the overhaul period of the rectification column, ensuring the safe operation of the packing tower.

[0024] To achieve a better rectification effect, the present invention adopts staged rectification. In some embodiments of the present invention, along the height direction, a plurality of support grids 107 for supporting the packing are arranged at intervals in the rectification column 101, and each support grid bears the packing to form a plurality of packing sections. An ultrasonic amplifier 106 is installed in the packing of each packing section 109. It can be understood that the packing described in the present invention is bulk packing (such as Raschig rings, Lessing rings, cross rings, Pall rings, saddles, Nutter rings or Mellapak rings, etc., which will not be elaborated in the present invention).

[0025] In some embodiments of the present invention, it is preferred that the total height of the ultrasonic amplifier 106 accounts for 50% - 100% of the height of the corresponding packing section 109.

[0026] In some embodiments of the present invention, in the rectification column 101, a liquid redistributor 108 is installed below each packing section 109. The liquid redistributor of the present invention can adopt a conventional liquid distributor in the prior art, and there are no special requirements for this in the present invention, so it will not be elaborated.

[0027] In some embodiments of the present invention, the ultrasonic device includes an ultrasonic generator 102 and an ultrasonic transducer 103 electrically connected through a lead, and the ultrasonic transducer 103 is connected to the ultrasonic amplifier 106; preferably, the ultrasonic transducer 103 is connected to the ultrasonic amplifier 106 through an adapter 105. In this way, energy exchange between the ultrasonic amplifier and the ultrasonic transducer is achieved through the adapter, and finally transmitted to the packing.

[0028] In some embodiments of the present invention, as Figure 2 shown, the ultrasonic amplifier 106 includes an ultrasonic amplification body 106-2 and a support body 106-1 for supporting the ultrasonic amplification body 106-2. Considering the installation of the packing, it is preferred that the support body 106-1 is connected to the bottom of the ultrasonic amplification body 106-2.

[0029] In some embodiments of the present invention, as Figure 4 shown, the support body 106-1 includes an annular support portion 106-11. A connecting portion 106-12 is provided in the region defined by the annular support portion 106-11. The annular support portion 106-11 is connected to the ultrasonic amplification body 106-2 through the connecting portion 106-12.

[0030] In some embodiments of the present invention, the ultrasonic amplification body 106-2 and the support body 106-1 are coaxially arranged and extend in the height direction to form a columnar body, preferably including at least one of the following forms:

[0031] Form 1: As Figure 4 shown in (c), the ultrasonic amplification body 106-2 is set to be spring-shaped extending in the height direction;

[0032] Form 2: As Figure 4 shown in (d), the ultrasonic amplification body 106-2 is set to be tree-shaped. Preferably, the ultrasonic amplification body 106-2 includes a plurality of vertical rods 106-21 arranged at intervals in the circumferential direction. The lower ends of the vertical rods are connected to the connecting portion, and each vertical rod 106-21 is provided with branches 106-22 at intervals along its own length direction;

[0033] Form 3: The ultrasonic amplification body 106-2 is set to be mesh-shaped. As Figure 4 shown in (e), the ultrasonic amplification body 106-2 is set to be a column formed by surrounding with a mesh surface.

[0034] In some embodiments of the present invention, a plurality of sleeves 104 are horizontally installed on the tower wall of the distillation column 101. The plurality of sleeves 104 are arranged at intervals in the circumferential direction of the tower wall. In the sleeve 104, the ultrasonic transducer 103 is connected to the adapter 105. Specifically, for example, the connection method between the ultrasonic transducer and the sleeve can be threaded connection or flange connection. The sleeve and the adapter can be connected by thread. The adapter connects the annular support portion 106-11 of the ultrasonic amplifier. In this way, the ultrasonic amplifier and the ultrasonic transducer perform energy exchange through the adapter and finally transfer to the packing section.

[0035] In some embodiments of the present invention, it is preferred that at least four sleeves 104 are arranged at equal intervals along the circumferential direction of the tower wall. Each sleeve is connected to an ultrasonic transducer and an adapter at both ends respectively, so that at least four adapters are also arranged at equal intervals along the circumferential direction of the annular support portion. The ultrasonic amplifier is installed inside the packing and is connected to the ultrasonic transducer outside the tower wall through a conversion member. The ultrasonic amplifier can uniformly transfer energy to the nearby packing and liquid.

[0036] In some embodiments of the present invention, it is preferred that the ratio of the length of each sleeve 104 to the diameter of the rectifying column 101 is 5% - 10%.

[0037] In some embodiments of the present invention, it is preferred that the length of each sleeve 104 is not less than 50 mm.

[0038] In some embodiments of the present invention, the diameter of the ultrasonic amplification body 106-2 is 40% - 60% of the diameter of the support body 106-1.

[0039] In some embodiments of the present invention, as Figure 3 shown, the adapter 105 is provided with a first connection section 105-1 connected to the ultrasonic transducer 103 through the sleeve and a second connection section 105-2 connected to the support body 106-1 of the ultrasonic amplifier 106. The first connection section 105-1 and the second connection section 105-2 are perpendicularly connected.

[0040] In some embodiments of the present invention, the adapter is set as Figure 3 the right-angle type shown in (b) of Figure 3 and the hook-ring type shown in (a) of Figure 3 wherein, on the basis of the right-angle type, the hook-ring type sequentially increases a third connection section and a fourth connection section perpendicular to each other counterclockwise. The third connection section is perpendicularly connected to the second connection section, so that the adapter integrally forms

[0041] the hook-ring type shown in (a) of

[0042] wherein, the hook-ring type can limit the displacement in the vertical height direction and reduce energy loss. 2 ·S·η·h

[0043] wherein,

[0044] P - power of the ultrasonic generator, w;

[0045] f - frequency of the ultrasonic generator, kHz;

[0046] S - cross-sectional area of the rectifying column, m 2 ;

[0047] η—the viscosity of the material at 50 °C, kg / (m·s);

[0048] h—the height of each packing section, m.

[0049] It should be noted that in actual applications, considering an energy loss of 5-20%, the actual power is (1.05-1.2)·f 2 ·S·η·h.

[0050] In the present invention, the column body of the distillation column can be arranged by using the prior art. For example, the inlet for the material to be distilled can be opened on the side wall of the distillation column above the packing section, the steam outlet is opened at the top of the distillation column, the steam inlet is located at the bottom of the distillation column, a sewage outlet 110 is opened at the lowest point of the bottom of the distillation column, a side line extraction port is opened on the side wall below the packing section, etc. The present invention will not elaborate on this.

[0051] The second aspect of the present invention discloses the application of the distillation equipment of the present invention in a thermosensitive system, preferably in a thermosensitive system with high viscosity and high boiling point. Among them, the high viscosity is a viscosity greater than 300 cP, and the high boiling point is a boiling point greater than 200 °C.

[0052] For existing systems with high viscosity, high thermosensitivity, and high boiling point, methods such as increasing the vacuum degree and developing efficient packings are mostly used to reduce the operating temperature and the residence time of the material to improve the product purity. However, the above methods have relatively high requirements for the sealing performance of the entire distillation device, the performance of the vacuum unit, and the technical level of personnel. There are problems in the prior art such as poor gas-liquid separation efficiency in systems with high viscosity, high thermosensitivity, and high boiling point, easy blockage of the packing by high-viscosity materials and impurities, and poor equipment safety and process stability. The distillation equipment of the present invention has the advantage of good operating stability and has high gas-liquid mass transfer, heat transfer, and separation efficiency when applied to systems with high viscosity, high thermosensitivity, and high boiling point.

[0053] The advantages of the present invention will be illustrated below through examples, but the present invention is not limited thereto.

[0054] Example 1

[0055] As Figure 1 shown in the distillation equipment, the diameter of the distillation column is 1000 mm, the random packing Raschig rings are used, the number of packing sections is 4, the height of each packing section is 4000 mm. Among them, the ultrasonic generator and the ultrasonic transducer are connected by a lead wire, the ultrasonic transducer and the sleeve are connected by a flange, the sleeve and the converter are connected by a thread, the length of the sleeve is 80 mm, the number of sleeves is 6 and they are arranged at equal intervals along the circumferential wall of the distillation column, and the ultrasonic generator, the ultrasonic transducer, and the converter correspond one by one and are arranged uniformly along the circumference. The form of the converter is Figure 3The hook-and-loop type shown in (a). There is an ultrasonic amplifier in each packing section. The ultrasonic amplifier support and the converter are tightly connected by bolts. The diameter of the ultrasonic amplification body of the ultrasonic amplifier is 500 mm, and the form is Figure 4 the spring type shown in (c) of [reference], the height of the ultrasonic amplifier is 3000 mm, and the diameter of the support 106-1 is 900 mm.

[0056] In the rectification equipment, the feed material is cyclohexanedimethanol. Among them, cyclohexanedimethanol is 98 wt%, and the impurities are high-boiling and high-viscosity copolymers. The viscosity of the cyclohexanedimethanol material at 50 °C is 688 cP. The ultrasonic frequency is 20 kHz, and P is 864.128 W. Considering energy loss, the ultrasonic power of each section is controlled to be 1000 W. The rectification conditions are: the top pressure is controlled at 25 kPaA (A represents absolute pressure), and the bottom temperature is controlled at 245 °C.

[0057] The purity of the final product is 99.96%, the bottom temperature can be maintained below 250 °C, and the pressure drop is always stable within 3 kPa within 8000 hours.

[0058] Example 2

[0059] The difference from Example 1 is that the diameter of the rectification tower is 1000 mm. Bulk packing cross rings are used, the number of packing sections is 3, the height of each packing section is 4000 mm, the length of the sleeve is 80 mm, and the number of sleeves is 4, which are arranged at equal intervals along the circumferential wall of the rectification tower. The form of the converter is Figure 3 the right-angle type shown in (b) of [reference], the diameter of the ultrasonic amplification body of the ultrasonic amplifier is 600 m, and the form is Figure 4 the dendritic type shown in (d) of [reference], the height of the ultrasonic amplifier is 2000 mm, and the diameter of the support 106-1 is 1250 mm.

[0060] In the rectification equipment, the feed material is metaxylenediamine. Among them, the metaxylenediamine material includes 80 wt% metaxylenediamine, 19 wt% liquid ammonia, and 1 wt% other impurities including isophthalonitrile, 3-methylbenzylamine, and 3-cyanobenzamide. The viscosity at 50 °C is 6.8 cP, the ultrasonic frequency is 20 kHz, and P is 86.4128 W. Considering energy loss, the ultrasonic power of each section is controlled to be 100 W. The rectification conditions are: the top pressure is controlled at 25 kPaA (A represents absolute pressure), and the bottom temperature is controlled at 140 °C.

[0061] The purity of the final product is 99.85%, the bottom temperature can be maintained below 250 °C, and the pressure drop is always stable within 3 kPa within 8000 hours.

[0062] Example 3

[0063] Different from Example 1, Pall rings are used as random packing, with 3 sections of packing, the height of each section of packing being 4000 mm, the length of the sleeve being 80 mm, and the number of sleeves being 4, equally spaced along the circumferential wall of the distillation column. The form of the conversion part is Figure 3 the right-angle type shown in (b) of Figure 4 , and the form of the ultrasonic amplifier is the mesh type shown in (f) of

[0064] In the rectification equipment, the feed cyclohexanedimethanol material contains 98 wt% of cyclohexanedimethanol, and the impurities are high-boiling and high-viscosity copolymers. The viscosity of the cyclohexanedimethanol material at 50 °C is 688 cP, the ultrasonic frequency is 20 kHz, and P is 864.128 W. Considering the energy loss, the ultrasonic power of each section is controlled to be 1000 W. The rectification conditions are: the top pressure is controlled at 25 kPaA (A represents absolute pressure), and the bottom temperature is controlled at 245 °C. The purity of the final product is 99.92%, the bottom temperature can be maintained below 250 °C, and the pressure drop remains stable within 3 kPa within 8000 hours.

[0065] Example 4

[0066] Different from Example 1, the ultrasonic power of each section is set to 500 w.

[0067] This results in the purity of the final product dropping to 93%, the pressure drop in the material packing tower continuously increasing to 5 kPa within 8000 hours, and partial copolymerization of cyclohexanedimethanol occurring.

[0068] Comparative Example 1

[0069] Different from Example 1, the ultrasonic amplifier 106 is not provided in the packing.

[0070] Since the energy cannot be evenly transferred to the packing layer, the purity of the final product drops to 90%, and the pressure drop in the material packing tower continuously increases to 3.15 kPa within 8000 hours.

[0071] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, including any suitable combination of individual specific technical features. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods. However, these simple modifications and combinations should also be regarded as the content disclosed by the present invention and fall within the protection scope of the present invention.

Claims

1. A rectification device, characterized in that, the rectification device includes a rectification column (101), the rectification column (101) is filled with packing, an ultrasonic amplifier (106) is installed in the packing, and the ultrasonic amplifier (106) is connected to an ultrasonic generating device.

2. The rectification device according to claim 1, characterized in that, along the height direction, a plurality of packing sections (109) are arranged at intervals in the rectification column (101), and the ultrasonic amplifier (106) is installed in the packing of each packing section (109); preferably, the total height of the ultrasonic amplifier (106) accounts for 50% - 100% of the height of the corresponding packing section (109).

3. The rectification device according to claim 2, characterized in that, in the rectification column (101), a liquid redistributor (108) is installed below each packing section (109).

4. The rectification device according to claim 1, characterized in that, the ultrasonic device includes an ultrasonic generator (102) and an ultrasonic transducer (103) which are electrically connected, and the ultrasonic transducer (103) is connected to the ultrasonic amplifier (106); preferably, the ultrasonic transducer (103) is connected to the ultrasonic amplifier (106) through an adapter (105).

5. The rectification device according to claim 4, characterized in that, the ultrasonic amplifier (106) includes an ultrasonic amplification body (106 - 2) and a support body (106 - 1) for supporting the ultrasonic amplification body (106 - 2), preferably, the support body (106 - 1) is connected to the bottom of the ultrasonic amplification body (106 - 2).

6. The rectification device according to claim 5, characterized in that, the support body (106 - 1) includes an annular support portion (106 - 11), a connecting portion (106 - 12) is arranged in the region surrounded by the annular support portion (106 - 11), and the annular support portion (106 - 11) is connected to the ultrasonic amplification body (106 - 2) through the connecting portion (106 - 12); and / or the ultrasonic amplification body (106 - 2) and the support body (106 - 1) are coaxially arranged and extend along the height direction to form a columnar body, preferably, at least one of the following forms is included: Form 1: The ultrasonic amplification body (106 - 2) is set as a spring type extending along the height direction; Form 2: The ultrasonic amplification body (106 - 2) is set as a tree type, preferably, the ultrasonic amplification body (106 - 2) includes a plurality of vertical rods (106 - 21) arranged at intervals in the circumferential direction, and branches (106 - 22) are arranged at intervals along the length direction of each vertical rod (106 - 21); Form 3: The ultrasonic amplification body (106 - 2) is set as a column formed by surrounding with a mesh surface.

7. The rectification device according to claim 6, characterized in that, a plurality of sleeves (104) are horizontally installed on the tower wall of the rectification column (101), the plurality of sleeves (104) are arranged at intervals in the circumferential direction of the tower wall, and in the sleeves (104), the ultrasonic transducer (103) is connected to the adapter (105); Preferably, the number of the sleeves (104) is at least 4; and / or Preferably, the ratio of the length of each sleeve (104) to the diameter of the rectification column (101) is 5% - 10%; and / or Preferably, the length of each sleeve (104) is not less than 50 mm; and / or The diameter of the ultrasonic amplification body (106-2) is 40% - 60% of the diameter of the support body (106-1).

8. The rectification equipment according to claim 4 or 7, characterized in that The adapter (105) is provided with a first connection section (105-1) connected to the ultrasonic transducer (103) and a second connection section (105-2) connected to the support body (106-1) of the ultrasonic amplifier (106), and the first connection section (105-1) and the second connection section (105-2) are perpendicularly connected.

9. The rectification equipment according to any one of claims 1-8, characterized in that The frequency and power of the ultrasonic transducer are adjusted according to the tower cross-sectional area, the feed flow rate and the material viscosity, and the correlation formula is as follows: P = f 2 ·S·η·h Wherein, P - the power of the ultrasonic generator, w; f - the frequency of the ultrasonic generator, kHz; S—— cross-sectional area of the distillation column, m 2 ; η - the material viscosity at 50°C, kg / (m·s); h - the height of each section of packing, m.

10. The application of the rectification equipment according to any one of claims 1-9 in a heat-sensitive system, preferably in a heat-sensitive system with high viscosity and high boiling point, wherein, The high viscosity means the viscosity is greater than 300 cP, and the high boiling point means the boiling point is greater than 200°C.

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