CN218742005U

CN218742005U - Tubular continuous flow reactor

Info

Publication number: CN218742005U
Application number: CN202223108668.7U
Authority: CN
Inventors: 尹邦进; 陈冲; 邓磊; 尹志勇
Original assignee: Zhejiang Jicheng New Material Co ltd
Current assignee: Zhejiang Jicheng New Material Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-28
Anticipated expiration: 2032-11-21

Abstract

The utility model belongs to the field of chemical reaction equipment, in particular to a tubular continuous flow reactor, which comprises a reaction tube, wherein the reaction tube comprises a tube body and a spoiler arranged in the tube body, a plurality of groups of thread passages are sequentially arranged on the periphery of the spoiler along the axis, the rotating directions of every two adjacent groups of thread passages are opposite and are provided with intervals, and reaction passages are formed among the thread passages, the intervals and the inner wall of the tube body; the outer pipe is further arranged on the outer side of the pipe body, a medium circulation cavity is formed between the inner wall of the outer pipe and the outer wall of the pipe body, and the outer pipe further comprises a medium inlet and a medium outlet which are arranged on the outer pipe and communicated with the medium circulation cavity. The utility model discloses a tubular continuous flow reactor, the material is followed spiral channel soon after getting into reaction channel and is flowed to the flow, increases the torrent effect of material flow path and increase the material, and adjacent screw thread passageway has the interval and revolves to opposite, realizes compelled switching-over and the mixture of material, and fluidic radial flow effect is strengthened, mixes more fully, and reaction effect is better, and reaction efficiency is higher.

Description

Tubular continuous flow reactor

Technical Field

The utility model belongs to the field of chemical reaction equipment, in particular to a tubular continuous flow reactor.

Background

In the chemical reaction equipment industry, the requirements on the performances of acid and alkali resistance, corrosion resistance, high temperature resistance, high pressure resistance and the like of a reactor are very high. The ceramic material is an inorganic non-metallic material, and has the excellent characteristics of light weight, high strength, high temperature resistance, corrosion resistance, wear resistance, aging resistance, no deformation and the like, so the ceramic material is very ideal as a reactor material.

However, the existing ceramic reactors are all of plate type structures, so that the manufacturing cost is high, and the high flux is difficult to achieve. In addition, the silicon carbide reactor in the prior art is not ideal in the aspects of material feeding efficiency and mixing effect, so that the production process of some chemical materials is difficult to achieve high reaction efficiency.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an effectual tubular continuous flow reactor of material mixing, realize the energy consumption cost reduction and the production efficiency promotion of chemical products, promote chemical industry and pharmaceutic equipment upgrading.

The tubular continuous flow reactor comprises a reaction tube, wherein the reaction tube comprises a tube body and a spoiler arranged in the tube body, a plurality of groups of thread passages are sequentially arranged on the periphery of the spoiler along the axis, an interval is arranged between every two adjacent groups of thread passages, the rotating directions of the thread passages are opposite, and reaction passages are formed among the thread passages, the interval and the inner wall of the tube body; the outer pipe is further arranged on the outer side of the pipe body, a medium circulation cavity is formed between the inner wall of the outer pipe and the outer wall of the pipe body, and the medium circulation device further comprises a medium inlet and a medium outlet which are arranged on the outer pipe and communicated with the medium circulation cavity.

Furthermore, the spoiler comprises a rod body and a plurality of groups of spiral blocks which are sequentially arranged on the outer side of the rod body along the axis, wherein the periphery of each spiral block is provided with a threaded channel, and a space is arranged between every two adjacent groups of spiral blocks.

Furthermore, the reaction tube further comprises a connecting cylinder used for connecting the outer tube and the tube body, the outer wall of the tube body is matched with the inner wall of the connecting cylinder, the inner wall of the outer tube is matched with the outer wall of the connecting cylinder, and the outer wall of the tube body, the inner wall of the outer tube and the end face of the connecting cylinder form a medium circulation cavity.

Further, the tube and/or the spoiler are made of silicon carbide.

The utility model discloses still include drainage mechanism, drainage mechanism includes sleeve and water conservancy diversion cone, and sleeve and reaction tube end connection are provided with material passageway in the sleeve, and the water conservancy diversion cone sets up in material passageway, and the terminal surface cooperation of water conservancy diversion cone bottom surface and reaction tube, and water conservancy diversion cone side forms annular channel with the material passageway inner wall, and material passageway, annular channel and reaction channel communicate in proper order.

Furthermore, one side of the sleeve, which is matched with the reaction tube, is provided with a step hole, and the reaction tube is inserted into the step hole and connected with the sleeve.

Furthermore, the reaction tube is matched with the step hole, the outer wall of the reaction tube is provided with a connecting flange I in an outward protruding mode, one side, close to the connecting flange I, of the sleeve is provided with a connecting flange II in an outward protruding mode, and the connecting flange I is connected with the connecting flange II.

Furthermore, a sealing ring is arranged between the inner wall of the step hole and the outer wall of the reaction tube.

The drainage mechanism further comprises a fixing ring connected with the diversion cone, the fixing ring is matched with the step hole, an annular channel is formed by the inner wall of the fixing ring and the side wall of the diversion cone, and the inner wall of the fixing ring and the side wall of the diversion cone are mutually connected through a connecting part.

Furthermore, the reaction channel comprises at least two thread channels which are arranged along the axis of the reaction tube in an annular array, and the annular channel is divided into at least two arc-shaped channels which are correspondingly communicated with the thread channels through at least two connecting parts.

The beneficial effects of the utility model are that, the utility model discloses a tubular continuous flow reactor, the material can follow the helical coiled passage between the spiral piece soon to flowing after getting into reaction channel, has increased the torrent effect that material flow path and increase the material. Moreover, every two sets of adjacent spiral pieces have the interval and revolve to opposite in the multiunit spiral piece for the material is when flowing the interval, and the material that is located two helical passage is amalgamated and is mixed, and reverse circulation when getting into next helical passage realizes being forced of material to commutate and mix, and fluidic radial flow effect is strengthened, mixes more fully, and the reaction effect is better, and reaction efficiency is higher.

Drawings

FIG. 1 is a schematic diagram of the structure of a tubular continuous flow reactor in an embodiment of the present invention;

FIG. 2 is a schematic view of a part of the structure of a reaction tube according to an embodiment of the present invention;

FIG. 3 is a schematic view of the connection between the reaction tube and the flow guiding structure according to an embodiment of the present invention;

fig. 4 is a schematic view of a spoiler and flow directing structure (hidden sleeve) according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a spoiler in accordance with an embodiment of the present invention;

FIG. 6 is an enlarged fragmentary view of FIG. 5;

fig. 7 is a perspective view of fig. 6.

In the figure, 1-reaction tube; 11-an outer tube; 12-a tube body; 13-a spoiler; 131-a rod body; 132-a spiral block; 133-interval; 14-a media flow-through cavity; 15-a media inlet; 16-a media outlet; 17-a connecting cylinder; 171-connecting flange i; 18-a reaction channel; 2-a drainage mechanism; 21-a sleeve; 211-material channel; 212-a stepped bore; 213-connecting tube connection structure; 214-connecting flange ii; 22-a flow cone; 221-a fixed ring; 222-a connecting portion; 23-an annular channel; 24-a sealing ring; 3-connecting pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions of the embodiments of the present invention can be combined with each other, but it is necessary to use a person skilled in the art to realize the basis, and when the technical solutions are combined and contradictory to each other or cannot be realized, the combination of the technical solutions should not exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 7, the tubular continuous flow reactor of the present invention comprises a reaction tube 1, the reaction tube 1 comprises a tube body 12 and a turbulator 13 disposed in the tube body, a plurality of sets of threaded passages are sequentially disposed on the periphery of the turbulator 13 along the axis, the rotation directions of each two adjacent sets of threaded passages are opposite and are provided with a space 133, and a reaction channel 18 is formed between the threaded passages, the space 133 and the inner wall of the tube body 12; the outer side of the tube body 12 is further provided with an outer tube 11, a medium circulation cavity 14 is formed between the inner wall of the outer tube 11 and the outer wall of the tube body 12, and the outer tube further comprises a medium inlet 15 and a medium outlet 16 which are arranged on the outer tube 11 and communicated with the medium circulation cavity 14. The materials to be reacted enter from one end of the reaction channel 18, flow while mixing in the reaction channel 18 and react, and flow out from the other end of the reaction channel 18 to the next station after the reaction is finished. The reactor of the utility model is suitable for liquid-liquid reaction and solid-liquid reaction, can bear the reaction temperature of 200 ℃ and the bearing pressure of 40Bar; the reaction flux is large, continuous flow reaction can be realized, the turbulator 13 can realize material turbulance mass transfer, and the number of the turbulator is far higher than that of mass transfer systems of the reaction kettle.

In one of the modified embodiments, the outer diameter of the flow disrupter 13 is equal to the inner diameter of the reaction tube 1. Thus, the materials to be reacted can only flow along the threaded passage and the space 133, the flowing distance of the materials is increased, and the mixing effect of the materials is ensured. In this embodiment, the turbulator is a cylindrical structure made of metal, and the surface of the cylinder is directly grooved to form positive and negative spirals and spaces to form the reaction channel.

In one of the modified embodiments, as shown in fig. 3-7, the tubular body 12 is preferably a hollow circular tube with two open ends, and the turbulence generator 13 is the same length as the tubular body 12; the spoiler 13 comprises a rod body 131 and a plurality of groups of spiral blocks 132 sequentially arranged around the outer side of the rod body 131 along an axis, every two adjacent groups of spiral blocks 132 have an interval 133 and opposite spiral directions, a reaction channel 18 is formed by the outer wall of the rod body 131, the side wall of each spiral block 132 and the inner wall of the tube body 12, and the reaction channel 18 is formed between the outer wall of the rod body 131 and the inner wall of the tube body 12 at the position of the interval 133. The spoiler is arranged into the rod body and the plurality of groups of spiral blocks, so that the production and the installation are convenient. In the tubular continuous flow reactor in this embodiment, after entering the reaction channel 18, the material will flow along the spiral channel between the spiral blocks 132 in a spiral direction, so that the material flow path is lengthened, and the turbulent effect of the material is significantly increased. Moreover, every two sets of adjacent spiral pieces 132 in multiunit spiral piece 132 have interval 133 and the direction of rotation is opposite for the material is when flowing to interval 133, and the material that is located two helical passage merges and mixes, and reverse circulation when getting into next helical passage realizes the forced switching-over and the mixing of material, and the radial flow effect of fluid is strengthened, the mixture is more abundant, the reaction effect is better, reaction efficiency is higher.

In one embodiment, the screw thread of each screw block 132 is wound around the rod 131 for two turns, and a screw channel is formed between the screw threads, and the width of the screw channel is equal to the width of the space 133. The width of the threaded passage determines the flow area of the reaction channel 18, and the size thereof is determined in detail according to the characteristics of the chemical reaction, the reactor throughput and the time.

In one embodiment, the tube 12 and the turbulators 13 are made of silicon carbide ceramic. The surface of the turbulator 13 can be directly grooved to form positive and negative spirals and spaces to form the reaction channel 18, or the rod 131 and the spiral block 132 can be separately produced, and the spiral block 132 can be added on the rod 131 to form the turbulator 13. The tube body 12 is formed by sintering silicon carbide ceramic, the silicon carbide ceramic has the excellent characteristics of high-temperature strength, strong high-temperature oxidation resistance, good wear resistance, good thermal stability, small thermal expansion coefficient, large thermal conductivity, high hardness, thermal shock resistance, chemical corrosion resistance and the like, the thermal conductivity of the silicon carbide ceramic is 83.6127W/m.k, the service life is prolonged, meanwhile, the temperature control of materials is facilitated, and the smooth proceeding of the chemical reaction of the materials is ensured. Certainly, the spoiler 13 is made of a silicon carbide material or a corrosion-resistant metal material, which can be selected according to actual needs, and the spoiler 13 is preferably made of a silicon carbide material, so that the spoiler is resistant to acid and alkali corrosion and high in thermal conductivity. In other embodiments, the tube body 12 may be sintered solely from silicon carbide ceramics, and the turbulator 13 may be made from corrosion resistant metals.

In one embodiment, as shown in fig. 2, the ends of the medium inlet 15 and the medium outlet 16 are provided with flanges, and are connected and fixed with an external medium pipeline through a flange structure. The medium inlet 15 and the medium outlet 16 are respectively connected with a pipeline of an external medium circulating system, and the medium pump drives a medium to circularly flow in the pipeline and the medium circulation space, so that the temperature of the pipe body 12 is controlled, and the chemical reaction of the material in the pipe body 12 is ensured to be smoothly carried out. The medium flow-through cavity 14 is used for heating or cooling the tube 12 by a flow-through medium, which may be any conventional material, such as oil, water, or a refrigerant fluid. In addition, the outer tube 11 may be made of a metal material or silicon carbide. In this embodiment, the medium circulation cavity 14 is wrapped around the tube 12, so as to control the reaction temperature precisely for the chemical reaction in the tube 12.

In one embodiment, in order to simplify the connection between the outer tube 11 and the tube 12, the reaction tube 1 further comprises a connecting cylinder 17 for connecting the outer tube 11 and the tube 12, the outer wall of the tube 12 is matched with the inner wall of the connecting cylinder 17, the inner wall of the outer tube 11 is matched with the outer wall of the connecting cylinder 17, and the outer wall of the tube 12, the inner wall of the outer tube 11 and the end face of the connecting cylinder 17 form a medium circulation cavity 14. When the pipe body 12 is formed by sintering silicon carbide ceramic, the shape of the connecting cylinder 17 is complex, in order to reduce the sintering workload, the connecting cylinder 17 and the outer cylinder 11 are both made of metal, and the connecting cylinder 17 and the outer cylinder 11 are directly welded and formed. In other embodiments, the connecting cylinder 17 is integrally formed with the outer tube 11 and the inner tube 12, and is made of silicon carbide material by sintering.

The end part of the reaction tube 1 of the tubular continuous flow reactor of the utility model is also provided with a drainage mechanism 2, which is convenient for the material to enter the reaction channel 18. Specifically, the drainage mechanism 2 comprises a sleeve 21 and a guide cone 22, wherein the sleeve 21 is connected with the end part of the reaction tube 1. A material channel 211 is arranged in the sleeve 21, the material channel 211 is connected with a feeding pipe or a connecting pipe 3 of a material supply device and used for providing materials for the reaction tube 1, the guide cone 22 is arranged in the material channel 211, and the bottom surface of the guide cone 22 is matched with the end surface of the reaction tube 1. At this time, the tip of the flow guide cone 22 is arranged toward the material feeding direction, the side surface of the flow guide cone 22 and the inner wall of the material passage 211 form an annular passage 23, and the material passage 211, the annular passage 23 and the reaction passage 18 are sequentially communicated. When the material flows into the material channel 211, the material is guided to the outer side of the flow guide cone 22 through the tip of the flow guide cone 22 and enters the annular channel 23, and finally enters the reaction channel 18 arranged on the inner side of the tube wall of the reaction tube 1 through the annular channel 23. The guide cone 22 can provide a guiding function for the material, and can reduce the delay pressure loss of the material from the material passage 211 to the reaction passage 18, thereby improving the reaction efficiency.

In one embodiment, a stepped hole 212 is formed in one side, which is matched with the reaction tube 1, of the sleeve 21, the stepped hole 212 is used for connecting and fixing the sleeve 21 and the reaction tube 1, and when the sleeve 21 and the reaction tube 1 are fixed, the reaction tube 1 only needs to be inserted into the stepped hole 212 to be connected with the sleeve 21, so that the difficulty in connecting the reaction tube 1 and the sleeve 21 is simplified. Meanwhile, the bore diameter of the stepped hole 212 is preferably consistent with the outer diameter of the reaction tube 1, and the bore diameter of the material passage 211 is consistent with the outer diameter of the reaction passage 18 on the reaction tube 1, so that after the reaction tube 1 is matched with the sleeve 21, the material passage 211 and the reaction passage 18 are smoothly transited on the outer diameter, and no step is formed to cause pressure loss.

In one embodiment, the reaction tube 1 is fitted with the stepped hole 212, and in a preferred embodiment, the reaction tube 1 is fitted with the stepped hole 212 through the connecting cylinder 17. In this embodiment, a sealing ring 24 is disposed between the inner wall of the stepped hole 212 and the outer wall of the connecting cylinder 17 of the reaction tube 1, so as to improve the sealing performance of the connection between the drainage mechanism 2 and the reaction tube 1. At the moment, the outer wall of the connecting cylinder 17 is provided with a connecting flange I171 in an outward protruding mode, one side, close to the connecting flange I171, of the sleeve 21 is provided with a connecting flange II 214 in an outward protruding mode, and the connecting flange I and the connecting flange II 214 are fixedly connected through a fastener. Set up like this, improve sleeve 21 and reaction tube 1's stability of being connected and reliability, flange joint simple structure simultaneously, easy dismounting.

In one embodiment, the drainage mechanism 2 further comprises a fixing ring 221 connected to the guide cone 22. The inner wall of the fixing ring 221 and the side wall of the guide cone 22 are connected with each other through at least one connecting part 222, the fixing ring 221 is matched with the stepped hole 212, the outer diameter of the fixing ring 221 is consistent with the inner diameter of the stepped hole 212, the inner diameter of the fixing ring 221 is consistent with the aperture of the material channel 211 and the outer diameter of the reaction channel 18, and therefore the annular channel 23 is formed by the inner wall of the fixing ring 221 and the side wall of the guide cone 22. In this embodiment, the cone 22 is fixed in the sleeve 21 by the fixing ring 221, and does not need to be integrally formed or mechanically connected with the reaction tube 1, which can facilitate the assembly, disassembly and replacement of the cone 22. The fixing ring 221 is matched with the end of the reaction tube 1 by the stepped hole 212, and does not need other fastener structures for fixing, and has good self-positioning effect.

The inlet of the reaction channel 18 may be a whole annular channel, while in a preferred embodiment, the reaction channel 18 comprises at least two threaded channels arranged in an annular array along the axis of the reaction tube 1, i.e. the inlet of the reaction channel 18 is at least two inlets with a partition. At this time, the annular channel 23 is divided into at least two arc-shaped channels correspondingly communicated with the inlets of the threaded channels by at least two connecting portions 222, so that the fixing ring 221 is connected with the flow guide cone 22 by at least two connecting portions 222, the connection stability of the fixing ring 221 and the flow guide cone 22 is improved, the arc-shaped channels of the annular channel 23 correspond to the inlets of the threaded channels of the reaction channel 18 one by one, and the drainage effect is improved. In addition, the cone structure of the flow guiding cone 22 can be designed to be optimized according to the number of the inlets of the reaction channels 18. For example, when the inlets of the reaction channel 18 are symmetrically distributed by 2, the cone part of the flow guide cone 22 can be a flat herringbone structure, and the flat parts of the herringbone structure correspond to the 2 inlets one by one, so that the flow guide and flow guide effects are improved; when 3 inlets of the reaction channel 18 are distributed in an annular array, the cone of the diversion cone 22 can be a triangular cone structure; by analogy, when the inlet of the reaction channel 18 is annular, the guide cone 22 may be conical.

The utility model discloses still include connecting pipe 3, sleeve 21 deviates from reaction tube 1 one side and is provided with connecting pipe connection structure 213. In this embodiment, the two ends of the reaction tube 1 can be provided with the drainage mechanism 2, the inner diameter of the reaction tube is 20mm-200mm, the length is 1000mm-4000mm, and two or more reaction tubes 1 can be connected and combined through the connecting tube 3, so as to form the large-flux continuous flow reaction device with the required length.

Details not described in this specification are within the skill of the art that are well known to those skilled in the art.

Claims

1. A tubular continuous flow reactor is characterized by comprising a reaction tube (1), wherein the reaction tube (1) comprises a tube body (12) and a spoiler (13) arranged in the tube body (12), a plurality of groups of thread channels are sequentially arranged on the periphery of the spoiler (13) along the axis, the rotation directions of every two adjacent groups of thread channels are opposite and are provided with a gap (133), and a reaction channel (18) is formed among the thread channels, the gap (133) and the inner wall of the tube body; the outer side of the pipe body (12) is further provided with an outer pipe (11), a medium circulation cavity (14) is formed between the inner wall of the outer pipe (11) and the outer wall of the pipe body (12), and the outer pipe type medium circulation device further comprises a medium inlet (15) and a medium outlet (16), wherein the medium inlet (15) and the medium outlet are arranged on the outer pipe (11) and communicated with the medium circulation cavity (14).

2. The tubular continuous flow reactor according to claim 1, wherein the turbulator (13) comprises a rod body (131) and a plurality of sets of screw blocks (132) sequentially arranged along an axis around the outside of the rod body (131), the screw blocks (132) are provided with the threaded passage at the outer circumference, and the space (133) is provided between each two adjacent sets of the screw blocks (132).

3. The tubular continuous flow reactor according to claim 2, characterized in that the reaction tube (1) further comprises a connecting cylinder (17) for connecting the outer tube (11) and the tube body (12), the outer wall of the tube body (12) is fitted with the inner wall of the connecting cylinder (17), the inner wall of the outer tube (11) is fitted with the outer wall of the connecting cylinder (17), and the outer wall of the tube body (12), the inner wall of the outer tube (11) and the end face of the connecting cylinder (17) form the medium flowing cavity (14).

4. The tubular continuous flow reactor according to claim 1, characterized in that the tubular body (12) and/or the turbulators (13) are made of silicon carbide ceramic.

5. The tubular continuous flow reactor according to any of claims 1 to 4, further comprising a flow guiding mechanism (2), wherein the flow guiding mechanism (2) comprises a sleeve (21) and a flow guiding cone (22), the sleeve (21) is connected with the end of the reaction tube (1), a material passage (211) is arranged in the sleeve (21), the flow guiding cone (22) is arranged in the material passage (211), the bottom surface of the flow guiding cone (22) is matched with the end surface of the reaction tube (1), the side surface of the flow guiding cone (22) and the inner wall of the material passage (211) form an annular passage (23), and the material passage (211), the annular passage (23) and the reaction passage (18) are sequentially communicated.

6. The tubular continuous flow reactor according to claim 5, wherein the side of the sleeve (21) which is matched with the reaction tube (1) is provided with a stepped hole (212), and the reaction tube (1) is inserted into the stepped hole (212) to be connected with the sleeve (21).

7. The tubular continuous flow reactor of claim 6, wherein the reaction tube (1) is matched with the stepped hole (212), the outer wall of the reaction tube (1) is provided with a connecting flange I (171) in a protruding mode, one side of the sleeve (21) close to the connecting flange I (171) is provided with a connecting flange II (214) in a protruding mode, and the connecting flange I (171) is connected with the connecting flange II (214).

8. The tubular continuous flow reactor according to claim 7, characterized in that a sealing ring (24) is arranged between the inner wall of the stepped hole (212) and the outer wall of the reaction tube (1).

9. The tubular continuous flow reactor according to claim 6, wherein the flow guiding mechanism (2) further comprises a fixing ring (221) connected with the flow guiding cone (22), the fixing ring (221) is matched with the stepped hole (212), the inner wall of the fixing ring (221) and the side wall of the flow guiding cone (22) form the annular channel (23), and the inner wall of the fixing ring (221) and the side wall of the flow guiding cone (22) are connected with each other through a connecting part (222).

10. The tubular continuous flow reactor according to claim 9, wherein said reaction channel (18) comprises at least two of said threaded channels arranged in an annular array along the axis of said reaction tube (1), said annular channel (23) being divided by at least two of said junctions (222) into at least two arcuate channels in corresponding communication with said threaded channels.