Rectification system multi-stage packed column integrating liquid distribution and collection

Abstract

The present application relates to the technical field of liquid rectification, in particular to a multi-section packed column integrated with liquid distribution and collection for rectification system, comprising: a collection barrel, a packed column body is fixed on the collection barrel; a packed absorption assembly is arranged in the packed column body at equal intervals, and the packed absorption assembly is used for absorbing chlorobenzene compounds in liquid; a conveying pipe is fixedly installed in the packed column body and is arranged at equal intervals, the conveying pipe is connected with the packed absorption assembly, and a spraying assembly connected with the conveying pipe is arranged in the packed column body; characterized by further comprising: a conveying adjusting mechanism symmetrically arranged in the packed column body and connected with the conveying pipe and the spraying assembly; a receiving disc arranged in the packed column body, the receiving disc is used for receiving liquid discharged by the packed absorption assembly, and a delayed flow guide mechanism connected with the receiving disc and the conveying pipe is arranged in the packed column body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid rectification, and in particular to a multi-section packed column of a rectification system integrated with liquid distribution and collection. BACKGROUND

[0002] The packed column principle is a common chemical equipment used for gas or liquid separation, purification and reaction processes. Its basic principle is to use the large surface area and porosity of the packing to increase the gas-liquid contact area, thereby improving the mass transfer and reaction efficiency.

[0003] In the packing layer, gas or liquid contacts the packing surface, and mass transfer and reaction occur. The mass transfer process includes diffusion, convection and reaction, among which diffusion is the main mass transfer mode. The reaction process refers to chemical reactions or physical adsorption processes. The mass transfer and reaction efficiency of the packed column depends on the type and shape of the packing, the flow rate, temperature and pressure of the gas or liquid, and other factors.

[0004] The existing packed column cannot uniformly spray liquid into the packing layer during use, which will result in poor absorption of chlorobenzene compounds, and the absorption effect will become worse over time. Single spraying absorption is difficult to remove chlorobenzene compounds in the liquid, which will cause problems with emission standards. SUMMARY

[0005] The present application aims to provide a multi-section packed column of a rectification system integrated with liquid distribution and collection to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A multi-section packed column of a rectification system integrated with liquid distribution and collection, comprising:

[0008] A collection barrel is fixed with a packed column body;

[0009] A packing absorption assembly is arranged equidistantly in the packed column body, and is used for absorbing chlorobenzene compounds in the liquid;

[0010] A delivery pipe is fixedly installed in the packed column body and is equidistantly distributed, the delivery pipe is connected with the packing absorption assembly, the packed column body is provided with a spraying assembly connected with the delivery pipe, the delivery pipe can deliver the liquid to be treated to the spraying assembly, and the liquid is sprayed into the packing absorption assembly through the spraying assembly;

[0011] characterized in that it further comprises:

[0012] A conveying adjusting mechanism is symmetrically arranged in the packing tower body and connected with the conveying pipe and the spraying assembly, and can act when the conveying speed of the conveying pipe changes and adjust the spraying speed of the spraying assembly.

[0013] A receiving disc is arranged in the packing tower body and used for receiving liquid discharged by the packing absorption assembly, and a delay guide mechanism is arranged in the packing tower body and connected with the receiving disc and the conveying pipe, and can act when the receiving disc receives liquid and convey the liquid into the collecting barrel.

[0014] As a further scheme of the present application, the packing absorption assembly comprises an upper pressing plate fixedly arranged in the packing tower body, a packing layer fixedly arranged in the packing tower body and abutting against the upper pressing plate, a lower pressing plate fixedly arranged in the packing tower body and abutting against the packing layer, and a collecting plate fixedly arranged in the packing tower body, abutting against the lower pressing plate and connected with the conveying pipe.

[0015] As a further scheme of the present application, the spraying assembly comprises a spraying disc fixedly arranged at one end of the conveying pipe towards the collecting barrel, a plurality of first spraying holes are arranged at the bottom of the spraying disc and are circumferentially and equidistantly distributed, a hollow disc is movably arranged in the packing tower body and wrapped around the outer wall of the spraying disc, a plurality of second spraying holes are arranged at the bottom of the hollow disc and are circumferentially and equidistantly distributed, the second spraying holes are communicated with the first spraying holes, the spraying disc is communicated with the conveying pipe, and the hollow disc is connected with the conveying adjusting mechanism.

[0016] As a further scheme of the present application, the conveying adjusting mechanism comprises hollow pipes fixedly arranged on the conveying pipe and symmetrically arranged, one end of each of the hollow pipes is fixedly connected with a limiting ring, an elastic assembly is arranged in the packing tower body and connected with the limiting ring and the hollow pipe, the elastic assembly is connected with the hollow disc, and the hollow pipe is in a communicated state with the conveying pipe.

[0017] As a further scheme of the present application, the elastic assembly comprises a piston movably arranged in the hollow pipe and abutting against the limiting ring, one end of the piston away from the limiting ring is fixedly connected with a movable rod penetrating through the hollow pipe, a first spring is sleeved on the movable rod and abutting against the piston, and a guide structure is arranged in the packing tower body and connected with the movable rod and the hollow disc.

[0018] As a further scheme of the present application, the guide structure comprises a connecting plate fixedly arranged at one end of the movable rod away from the piston, a limiting rod is fixedly arranged on the connecting plate, and an inclined slot is arranged on the hollow disc and engaged with the limiting rod.

[0019] As a further further scheme of the present application: the delay flow guide mechanism comprises a conveying sleeve fixedly installed at the bottom of the filler tower body and connected with the collecting barrel, a limiting pipe is fixed on the conveying sleeve, a flow guide pipe is movably installed in the limiting pipe, a supporting assembly connected with the flow guide pipe is arranged in the filler tower body, and the flow guide pipe is fixedly connected with the receiving disc.

[0020] As a further further scheme of the present application: the supporting assembly comprises a through slot opened on the side wall of the flow guide pipe, the flow guide pipe is sleeved with two No. 2 springs respectively abutting against the conveying sleeve and the receiving disc, the filler tower body is connected with a return pipe penetrating through the filler tower body and connected with the conveying pipe, and an evaporation piece connected with the receiving disc is arranged in the filler tower body.

[0021] As a further further scheme of the present application: the evaporation piece comprises a heater fixedly installed in the receiving disc.

[0022] Compared with the prior art, the present application has the beneficial effects that: the present application can absorb the chlorobenzene compounds in the liquid and ensure that the content of the chlorobenzene compounds in the liquid meets the required discharge, when the conveying pipe conveys the liquid, the liquid will enter the spraying assembly, under the action of water pressure, the control conveying adjusting mechanism moves, so that the spraying assembly can convey the liquid to the filler absorption assembly, after the absorption of the filler absorption assembly, the liquid will be conveyed to the receiving disc, under the action of gravity, the delay flow guide mechanism moves to discharge the liquid to the collecting barrel, if the liquid chlorobenzene compounds in the receiving disc still exceed the standard, under the action of the delay flow guide mechanism, the liquid is heated and evaporated and conveyed to the conveying pipe for reabsorption, so as to ensure that the chlorobenzene compounds in the discharged solution meet the required requirements. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Structure schematic view of one embodiment of the multi-section filler tower of the rectification system integrating liquid distribution and collection.

[0024] Figure 2 Structure schematic view of another angle of one embodiment of the multi-section filler tower of the rectification system integrating liquid distribution and collection.

[0025] Figure 3 Schematic view of a semi-section structure of one embodiment of the multi-section filler tower of the rectification system integrating liquid distribution and collection.

[0026] Figure 4 Structure schematic view of another angle of one embodiment of the multi-section filler tower of the rectification system integrating liquid distribution and collection. Figure 3 Structure enlarged schematic view of A in the middle.

[0027] Figure 5The connection relationship diagram of the packing absorption assembly, the conveying adjusting mechanism and the spraying assembly in one embodiment of the multi-stage packing tower of the rectification system integrating liquid distribution and collection.

[0028] Figure 6 The structure diagram of the spraying assembly and the conveying adjusting mechanism in one embodiment of the multi-stage packing tower of the rectification system integrating liquid distribution and collection.

[0029] Figure 7 The explosion structure diagram of the conveying adjusting mechanism in one embodiment of the multi-stage packing tower of the rectification system integrating liquid distribution and collection.

[0030] Figure 8 The structure diagram of the partial delay flow guide mechanism in one embodiment of the multi-stage packing tower of the rectification system integrating liquid distribution and collection.

[0031] Figure 9 The explosion structure diagram of the partial delay flow guide mechanism in one embodiment of the multi-stage packing tower of the rectification system integrating liquid distribution and collection.

[0032] In the figure: 1, collection barrel; 2, packing tower body; 3, conveying pipe; 4, spraying disc; 5, first spraying hole; 6, hollow disc; 7, second spraying hole; 8, chute; 9, hollow pipe; 10, limiting ring; 11, piston; 12, movable rod; 13, first spring; 14, connecting plate; 15, limiting rod; 16, upper pressing plate; 17, packing layer; 18, lower pressing plate; 19, collection plate; 20, conveying sleeve; 21, limiting pipe; 22, flow guide pipe; 23, through groove; 24, second spring; 25, receiving disc; 26, heater; 27, return pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] In addition, the elements in the present application are referred to as "fixed to" or "provided on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0035] Please refer to Figures 1-9The multi-sectioned packed column of the rectification system integrating liquid distribution and collection comprises:

[0036] A collecting barrel 1 is fixed with a packed column body 2;

[0037] Please refer to Figures 3-6 A packed absorption assembly is arranged in the packed column body 2 in equidistant distribution, and is used for absorbing chlorobenzene compounds in the liquid. The packed absorption assembly comprises an upper pressing plate 16 fixedly installed in the packed column body 2, a packed layer 17 fixedly installed in the packed column body 2 and abutting against the upper pressing plate 16, a lower pressing plate 18 fixedly installed in the packed column body 2 and abutting against the packed layer 17, and a collecting plate 19 fixedly installed in the packed column body 2, abutting against the lower pressing plate 18 and connected with the conveying pipe 3.

[0038] In detail, when some chlorobenzene-containing solution is treated, the chlorobenzene compounds in the solution need to be removed to reach the discharge level. The chlorobenzene compounds are generally removed by making the liquid pass through the packed layer 17, and the chlorobenzene compounds are absorbed under the action of the packed layer 17. In order to ensure more complete absorption, the liquid needs to flow through multiple packed layers 17 to reduce the content of chlorobenzene compounds in the liquid. When treatment is needed, the liquid will enter the spraying assembly through the conveying pipe 3 and be conveyed to the packed layer 17 through the spraying assembly. The upper pressing plate 16 and the lower pressing plate 18 are respectively fixed on the upper side and the lower side of the packed layer 17 to ensure the stability of the packed layer 17. The upper pressing plate 16 and the lower pressing plate 18 are in a mesh structure to ensure that the solution can smoothly enter the packed layer 17 and be smoothly discharged into the collecting plate 19 after treatment in the packed layer 17. The solution in the collecting plate 19 enters another conveying pipe 3 and is conveyed to the packed layer 17 again through the spraying assembly for absorption treatment.

[0039] Please refer to Figures 1-6 The conveying pipe 3 is fixedly installed in the packed column body 2 in equidistant distribution, is connected with the packed absorption assembly, and is provided with the spraying assembly in the packed column body 2. The conveying pipe 3 can convey the liquid to be treated to the spraying assembly and spray the liquid into the packed absorption assembly through the spraying assembly. The spraying assembly comprises a spraying disc 4 fixedly installed at one end of the conveying pipe 3 towards the collecting barrel 1. A plurality of first spraying holes 5 are arranged in the circumferential equidistant distribution at the bottom of the spraying disc 4. A hollow disc 6 is movably installed in the packed column body 2 and wrapped around the outer wall of the spraying disc 4. A plurality of second spraying holes 7 are arranged in the circumferential equidistant distribution at the bottom of the hollow disc 6. The second spraying holes 7 are connected with the first spraying holes 5. The spraying disc 4 is connected with the conveying pipe 3. The hollow disc 6 is connected with the conveying adjustment mechanism.

[0040] It should be noted that, in order to ensure that the liquid chlorobenzene compound absorption is more complete, the need to control the liquid evenly sprayed in the filler layer 17, the initial state, the first spray hole 5 and the second spray hole 7 are misaligned, so that the first spray hole 5 is in a closed state, at this time, the delivery pipe 3 will be required to transport the liquid to the spray tray 4, due to the first spray hole 5 is in a closed state, so that the liquid in the spray tray 4 will not be discharged, therefore, the spray tray 4 will be gradually filled, when the spray tray 4 is filled, under the action of water pressure, drive delivery adjustment mechanism movement, so that the hollow disc 6 rotates a certain angle, thereby driving the second spray hole 7 to move to the first spray hole 5 conduction position, at this time, the liquid in the spray tray 4 will be discharged through the first spray hole 5 and the second spray hole 7, and transported to the filler layer 17.

[0041] Preferably, if the delivery rate of the delivery pipe 3 increases, the delivery rate of the delivery pipe 3 will be greater than the spray rate of the first spray hole 5, at this time, the delivery adjustment mechanism continues to move, and drives the hollow disc 6 to continue to move, so that the first spray hole 5 and the second spray hole 7 increase the connection area, to increase the spray rate, so as to realize the automatic adjustment of the spray rate according to the delivery rate of the delivery pipe 3, and always maintain the effect of uniform spraying.

[0042] Also includes:

[0043] Please refer to Figures 1-7 , the delivery adjustment mechanism, symmetrically arranged in the filler tower body 2 and connected with the delivery pipe 3 and the spray assembly, the delivery adjustment mechanism can act when the delivery rate of the delivery pipe 3 changes, and adjust the spray rate of the spray assembly, the delivery adjustment mechanism includes a hollow pipe 9 fixedly installed on the delivery pipe 3 and symmetrically arranged, one end of the hollow pipe 9 towards the delivery pipe 3 is fixed with a limit ring 10, the filler tower body 2 is provided with an elastic assembly connected with the limit ring 10 and the hollow pipe 9, the elastic assembly is connected with the hollow disc 6, the hollow pipe 9 and the delivery pipe 3 are in the state of connection, wherein the elastic assembly includes a piston 11 movably installed in the hollow pipe 9 and abutting against the limit ring 10, one end of the piston 11 away from the limit ring 10 is fixed with a movable rod 12 penetrating through the hollow pipe 9, the movable rod 12 is sleeved with a first spring 13 abutting against the piston 11, the filler tower body 2 is provided with a guide structure connected with the movable rod 12 and the hollow disc 6, the above mentioned guide structure includes a connecting plate 14 fixedly installed on the end of the movable rod 12 away from the piston 11, the connecting plate 14 is fixed with a limit rod 15, the hollow disc 6 is provided with an inclined slot 8 engaged with the limit rod 15.

[0044] Further, in the initial state, the first spring 13 is in the compressed state, so that the piston 11 is in abutting state with the limiting ring 10, and the movable rod 12 is at the end of the stroke towards the hollow tube 9, at this time, the second spray hole 7 is in the state of separation from the first spray hole 5, and the limiting rod 15 is at the end of the stroke on one side of the inclined groove 8, when the delivery pipe 3 delivers the solution, the first spray hole 5 is in the state of blockage, so that the spray disc 4 is gradually filled, after the spray disc 4 is filled, the water pressure will act in the hollow tube 9, so that the piston 11 is impacted, under the action of water pressure, the control piston 11 moves away from the limiting rod 15, and the first spring 13 is compressed, the piston 11 also drives the movable rod 12 to move, and drives the limiting rod 15 to move through the connecting plate 14, under the action of the limiting rod 15, the hollow disc 6 provided with the inclined groove 8 rotates, so that the second spray hole 7 moves to the position connected with the first spray hole 5, when the spray rate is equivalent to the delivery rate of the delivery pipe 3, the water pressure no longer increases, and the hollow disc 6 no longer rotates.

[0045] Preferably, when the delivery rate of the delivery pipe 3 increases, the impact force on the piston 11 increases again, so that the movable rod 12 continues to move away from the piston 11, so that the hollow disc 6 continues to rotate to increase the connection area of the second spray hole 7 and the first spray hole 5.

[0046] Please refer to Figure 3 、 Figure 7 、 Figure 8 , the receiving disc 25 is arranged in the filler tower body 2, the receiving disc 25 is used for receiving the liquid discharged by the filler absorption assembly, the filler tower body 2 is provided with a delay flow guide mechanism connected with the receiving disc 25 and the delivery pipe 3, the delay flow guide mechanism can act when the receiving disc 25 receives the liquid, and deliver the liquid to the collecting barrel 1, the delay flow guide mechanism comprises a delivery sleeve 20 fixedly installed at the bottom of the filler tower body 2 and connected with the collecting barrel 1, a limiting tube 21 is fixed on the delivery sleeve 20, a flow guide pipe 22 is movably installed in the limiting tube 21, the filler tower body 2 is provided with a supporting assembly connected with the flow guide pipe 22, the flow guide pipe 22 is fixedly connected with the receiving disc 25, wherein the supporting assembly comprises a through slot 23 opened on the side wall of the flow guide pipe 22, the flow guide pipe 22 is sleeved with two second springs 24 abutting with the delivery sleeve 20 and the receiving disc 25 respectively, the filler tower body 2 is connected with a return pipe 27 penetrating through the filler tower body 2 and connected with the delivery pipe 3, the filler tower body 2 is provided with an evaporation piece connected with the receiving disc 25, and the evaporation piece mentioned above comprises a heater 26 fixedly installed in the receiving disc 25.

[0047] Further, the hole diameter of the conveying sleeve 20 is larger than that of the limiting tube 21, a detector is arranged in the receiving disc 25 to detect the content of chlorobenzene compounds, when the liquid flowing through the filler layer 17 overflows, will enter the collection plate 19, and then is conveyed to the receiving disc 25 through the collection plate 19, in the initial state, the second spring 24 is in the compressed state, so that the receiving disc 25 is located at the end of the stroke away from one end of the conveying sleeve 20, the through slot 23 is separated from the conveying sleeve 20, therefore, the solution entering the flow guide pipe 22 cannot be discharged, with the increase of the amount of the solution in the receiving disc 25, under the action of gravity, the receiving disc 25 is driven to move towards the conveying sleeve 20, and the second spring 24 is compressed, the receiving disc 25 also drives the flow guide pipe 22 to move, and controls the movement of the through slot 23, when the amount of the solution in the receiving disc 25 reaches a certain amount, the through slot 23 will move to the position connected with the conveying sleeve 20, at this time, the solution in the flow guide pipe 22 will enter the conveying sleeve 20 through the through slot 23, and then is conveyed to the collection barrel 1 through the conveying sleeve 20.

[0048] Preferably, since the water in the receiving disc 25 is discharged only after reaching a certain amount, if the detector detects that the content of chlorobenzene compounds in the liquid is too high during the process, the solution needs to be absorbed again, at this time, the heater 26 works, so that the solution in the receiving disc 25 is heated and evaporated, the steam will return to the conveying pipe 3 through the return pipe 27, so as to ensure that the discharged solution does not exceed the set range, wherein the detector and the heater 26 are both the application of the prior art, and will not be described herein.

[0049] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0050] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A multi-section packed column of rectification system integrated with liquid distribution and collection, comprising: a collection barrel (1) on which a packed column body (2) is fixed; a packed absorption assembly arranged equidistantly in the packed column body (2) and used for absorbing chlorobenzene compounds in liquid; a delivery pipe (3) fixedly installed in the packed column body (2) and arranged equidistantly, the delivery pipe (3) being connected with the packed absorption assembly, the packed column body (2) being provided with a spraying assembly connected with the delivery pipe (3), the delivery pipe (3) being capable of delivering liquid to be treated to the spraying assembly and spraying the liquid into the packed absorption assembly through the spraying assembly; characterized in that it further comprises: a delivery adjusting mechanism symmetrically arranged in the packed column body (2) and connected with the delivery pipe (3) and the spraying assembly, the delivery adjusting mechanism being capable of acting when the delivery rate of the delivery pipe (3) changes and adjusting the spraying rate of the spraying assembly; a receiving disc (25) arranged in the packed column body (2) and used for receiving liquid discharged by the packed absorption assembly, the packed column body (2) being provided with a delay flow guiding mechanism connected with the receiving disc (25) and the delivery pipe (3), the delay flow guiding mechanism being capable of acting when the receiving disc (25) receives liquid and delivering the liquid into the collection barrel (1); the packed absorption assembly comprising an upper pressing plate (16) fixedly installed in the packed column body (2), the packed column body (2) being fixedly provided with a packed layer (17) abutting against the upper pressing plate (16), the packed column body (2) further being fixedly provided with a lower pressing plate (18) abutting against the packed layer (17), and the packed column body (2) being fixedly provided with a collection plate (19) abutting against the lower pressing plate (18) and connected with the delivery pipe (3); the spraying assembly comprising a spraying disc (4) fixedly installed at one end of the delivery pipe (3) facing the collection barrel (1), the spraying disc (4) being provided at the bottom with a plurality of first spraying holes (5) arranged equidistantly in a circle, the packed column body (2) being movably provided with a hollow disc (6) wrapped around the outer wall of the spraying disc (4), the hollow disc (6) being provided at the bottom with a plurality of second spraying holes (7) arranged equidistantly in a circle, the second spraying holes (7) being communicated with the first spraying holes (5), the spraying disc (4) being communicated with the delivery pipe (3), and the hollow disc (6) being connected with the delivery adjusting mechanism; the delivery adjusting mechanism comprising hollow pipes (9) fixedly installed on the delivery pipe (3) and arranged symmetrically, one end of each of the hollow pipes (9) being fixedly provided with a limiting ring (10), the packed column body (2) being provided with an elastic assembly connected with the limiting ring (10) and the hollow pipes (9), the elastic assembly being connected with the hollow disc (6), and the hollow pipes (9) being in a communicated state with the delivery pipe (3).

2. A multi-tray packed column integrated liquid distribution and collection rectification system according to claim 1, wherein, The elastic assembly comprises a piston (11) movably mounted in the hollow pipe (9) and abutting against the limiting ring (10), one end of the piston (11) away from the limiting ring (10) is fixed with a movable rod (12) penetrating through the hollow pipe (9), the movable rod (12) is sleeved with a first spring (13) abutting against the piston (11), the filler tower body (2) is provided with a guide structure connected with the movable rod (12) and the hollow disc (6).

3. The multi-tray packed column of claim 2, wherein, The guide structure comprises a connecting plate (14) fixedly mounted at one end of the movable rod (12) away from the piston (11), the connecting plate (14) is fixed with a limiting rod (15), and the hollow disc (6) is provided with an inclined slot (8) clamped with the limiting rod (15).

4. The multi-tray packed column of claim 1, wherein, The delayed flow guide mechanism comprises a conveying sleeve (20) fixedly mounted at the bottom of the filler tower body (2) and connected with the collecting barrel (1), the conveying sleeve (20) is fixed with a limiting pipe (21), the limiting pipe (21) is movably mounted with a flow guide pipe (22), the filler tower body (2) is provided with a supporting assembly connected with the flow guide pipe (22), and the flow guide pipe (22) is fixedly connected with the receiving disc (25).

5. The integrated liquid distribution and collection rectification system multi-tray packed column of claim 4, wherein, The supporting assembly comprises a through slot (23) formed in the side wall of the flow guide pipe (22), the flow guide pipe (22) is sleeved with a second spring (24) abutting against the conveying sleeve (20) and the receiving disc (25) respectively, the filler tower body (2) is connected with a return pipe (27) penetrating through the filler tower body (2) and connected with the conveying pipe (3), and the filler tower body (2) is provided with an evaporation piece connected with the receiving disc (25).

6. The integrated liquid distribution and collection rectification system multi-tray packed column of claim 5, wherein, The evaporation piece comprises a heater (26) fixedly mounted in the receiving disc (25).

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